CN210439703U - Prestressed steel strand anchor withdrawing device and prestressed steel strand anchor withdrawing equipment - Google Patents
Prestressed steel strand anchor withdrawing device and prestressed steel strand anchor withdrawing equipment Download PDFInfo
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- CN210439703U CN210439703U CN201921231527.XU CN201921231527U CN210439703U CN 210439703 U CN210439703 U CN 210439703U CN 201921231527 U CN201921231527 U CN 201921231527U CN 210439703 U CN210439703 U CN 210439703U
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Abstract
The utility model relates to a prestressing force steel strand wires move back anchor device and prestressing force steel strand wires move back anchor equipment relates to and moves back anchor device technical field, and prestressing force steel strand wires move back anchor device and include mount pad and two at least locating parts, and the one end of mount pad is equipped with the first through-hole that supplies work ground tackle to pass, and the other end is equipped with the second through-hole that supplies the steel strand wires to pass, and the mobilizable setting of locating part is on the mount pad, and two arbitrary locating parts can be kept away from each other and be close to accomplish the butt with the terminal surface of work ground tackle. The technical problem that the anchor withdrawing device in the prior art cannot limit working anchors of different sizes is solved.
Description
Technical Field
The utility model relates to a move back anchor technical field, particularly, relate to a prestressing force steel strand wires move back anchor device and prestressing force steel strand wires move back anchor equipment.
Background
In the process of tensioning the prestressed steel strand, the situations of broken steel strand, damage of the anchor cup, serious retraction of the anchor cup caused by the fact that concrete after anchoring is emptied or cracking of the concrete after anchoring and the like occasionally occur, and the situation indicates that tensioning fails and needs to be withdrawn, released and released to release stress. In the construction tensioning force process, the working anchor is limited so as to prevent the clamping piece and the working anchor from being separated due to the fact that the working anchor stretches out along with the clamping piece and the steel strand.
However, the existing whole bundle of anchor withdrawing devices cannot limit working anchors with different sizes, and the anchor withdrawing devices are easily interfered with steel strands in the working anchors to influence the pulling out of the steel strands; or the limiting of the working anchorage device can not be completed, and when the steel strand is pulled, the working anchorage device can simultaneously extend out along with the clamping piece and the steel strand.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a prestressing force steel strand wires move back anchor device and prestressing force steel strand wires move back anchor equipment, this prestressing force steel strand wires move back anchor device and are used for alleviating the technical problem who moves back the unable not unidimensional work ground tackle of anchor device among the prior art.
In order to achieve the above object, in a first aspect, an embodiment of the present invention provides a prestressed steel strand anchor withdrawing device, including a mounting seat and at least two limiting members;
one end of the mounting seat is provided with a first through hole for the working anchorage device to pass through, the other end of the mounting seat is provided with a second through hole for the steel strand to pass through, the limiting parts are movably arranged on the mounting seat, and any two limiting parts can be mutually far away from and close to each other so as to complete the butt joint with the end face of the working anchorage device.
In an optional implementation manner, the mounting base includes a first positioning plate and a connecting member, the first through hole is disposed in the first positioning plate, one end of the connecting member is fixedly connected to the first positioning plate, and the limiting member is disposed in the connecting member and spaced from the first positioning plate.
In an optional implementation manner, the mounting base further includes a second positioning plate, the second positioning plate is fixedly connected to the other end of the connecting member, the second through hole is disposed in the second positioning plate, and a working area for taking out the clamping piece is formed between the limiting member and the second positioning plate.
In an optional embodiment, a threaded hole is formed in the connecting member, an external thread matched with the threaded hole is formed in the limiting member, and the limiting member is in threaded connection with the connecting member.
In an alternative embodiment, the axial direction of the threaded hole is perpendicular to the axial direction of the first through hole.
In an optional embodiment, a third through hole is formed in the connecting member, the limiting member is a limiting rod, and the limiting rod is in clearance fit with the third through hole.
In an optional embodiment, the connecting member includes connecting plates, the number of the connecting plates is the same as that of the limiting members, and the limiting members are respectively disposed on the connecting plates in a one-to-one correspondence manner.
In an alternative embodiment, the number of the connecting plates is four, and the adjacent connecting plates are arranged perpendicular to each other.
In an alternative embodiment, at least one of the connection plates is provided with an opening communicating the working area with the environment.
In an alternative embodiment, one end of the connecting plate is welded to the first positioning plate, and the other end of the connecting plate is welded to the second positioning plate.
In a second aspect, an embodiment of the present invention provides a prestressed steel strand anchor removing apparatus, including a jack and a prestressed steel strand anchor removing device as described in any one of the foregoing embodiments;
the jack is connected with one end of the mounting seat, which is provided with the second through hole, in an abutting mode.
The embodiment of the utility model provides a prestressed steel strand moves back anchor device, including mount pad and two at least locating parts, wherein, the one end of mount pad is equipped with the first through-hole that supplies the work ground tackle to pass, and the other end is equipped with the second through-hole that supplies the steel strand to pass, and first through-hole and second through-hole intercommunication, when the work ground tackle is inserted the mount pad by first through-hole, the steel strand of its front end can stretch out from the second through-hole; the limiting parts are movably arranged on the mounting seat, wherein any two limiting parts can be far away from and close to each other, so that the limiting parts and the end face of the working anchorage device facing the second through hole can not interfere with the steel strand when being fully abutted.
When the anchor needs to be withdrawn, the position of the limiting piece is adjusted according to the size of the working anchor, then the working anchor penetrates through the first through hole and is abutted against the limiting piece, and at the moment, the front end of the whole bundle of steel strands fixed with the working anchor can penetrate through the second through hole; and then, applying a force to the steel strand penetrating through the second through hole to enable the steel strand to move along the direction of the first through hole towards the second through hole, enabling the steel strand and the working anchor to move relatively at the moment, gradually releasing the steel strand and the clamping piece clamped between the steel strand and the working anchor from the working anchor until the clamping piece is completely separated from the working anchor, separating the clamping piece from the steel strand by a worker, moving the clamping piece out of the mounting seat, and finishing the anchor releasing operation of the steel strand.
The operation is simple and convenient, the limiting of the working anchors with different sizes can be met by adjusting the position of the limiting piece on the mounting seat, and the application range is wide; in addition, the prestressed steel strand anchor withdrawing device can complete the anchor withdrawing operation of the whole bundle of steel strands at one time, the anchor withdrawing operation of the steel strands is not needed to be completed by one root, the risk of wire breakage of the steel strands is reduced, and the safety of operators is guaranteed.
The embodiment of the utility model provides a prestressing force steel strand wires move back anchor equipment moves back anchor device through adopting above-mentioned prestressing force steel strand wires, and is corresponding, and this prestressing force steel strand wires move back anchor equipment has above-mentioned prestressing force steel strand wires and move back all advantages of anchor device, and here is no longer repeated.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of the prestressed steel strand anchor withdrawing device provided by the embodiment of the present invention when assembled with a jack and a working anchor;
fig. 2 is a schematic front view of an anchor withdrawing device for prestressed steel strands according to an embodiment of the present invention;
fig. 3 is the utility model provides a prestressing force steel strand wires move back anchor device's left side and look structural schematic.
Icon: 100-a first positioning plate; 200-a second positioning plate; 300-a stop; 400-a connector; 500-steel strand wires; 600-a working anchor; 700-jack;
110 — a first via;
210-a second via;
410-third via.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
In the description of the present invention, it should be noted that the terms "inside" and "outside" are used for indicating the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the utility model is usually placed when using, and are only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1 and 2, the prestressed steel strand anchor removing device provided in this embodiment includes an installation seat and at least two limiting members 300, wherein one end of the installation seat is provided with a first through hole 110 through which a working anchor 600 passes, the other end of the installation seat is provided with a second through hole 210 through which a steel strand 500 passes, the first through hole 110 is communicated with the second through hole 210, and when the working anchor 600 is inserted into the installation seat from the first through hole 110, the steel strand 500 at the front end of the working anchor can extend out of the second through hole 210; the limiting members 300 are movably disposed on the mounting seat, wherein any two limiting members 300 can be far away from and close to each other, so that the limiting members 300 can be fully abutted against the end surface of the working anchor 600 facing the second through hole 210 and cannot interfere with the steel strand 500.
When the anchor needs to be withdrawn, the position of the limiting piece 300 is adjusted according to the size of the working anchor 600, then the working anchor 600 penetrates through the first through hole 110 and abuts against the limiting piece 300, and at the moment, the front end of the whole bundle of steel strands 500 fixed with the working anchor 600 can penetrate through the second through hole 210; then, a force is applied to the steel strand 500 passing through the second through hole 210, so that the steel strand 500 moves along the first through hole 110 towards the second through hole 210, at this time, the steel strand 500 and the working anchor 600 move relatively, the steel strand 500 and the clamping pieces clamped between the steel strand 500 and the working anchor 600 gradually fall off from the working anchor 600 until the clamping pieces are completely separated from the working anchor 600, a worker separates the clamping pieces from the steel strand 500, moves the clamping pieces out of the mounting seats, and the anchor removing operation of the steel strand 500 is completed.
The operation is simple and convenient, the position of the limiting piece 300 on the mounting seat can be adjusted to limit the working anchors 600 with different sizes, and the application range is wide; in addition, the prestressed steel strand anchor withdrawing device can complete the anchor withdrawing operation of the whole bundle of steel strands 500 at one time, the anchor withdrawing operation of the steel strands 500 is not needed to be completed by one root, the risk of breaking the steel strands 500 is reduced, and the safety of operators is guaranteed.
It should be noted that, in the present embodiment, the approaching and departing of any two limiting members 300 means that the end portions of the two limiting members 300 approach and depart from each other, wherein one limiting member 300 may be stationary and the other limiting member 300 may move relative to the fixed base; or both the position-limiting members 300 can move relative to the fixing base. In addition, in the embodiment, only two limiting members 300 may be provided, and the end portions of the two limiting members 300 are disposed oppositely; alternatively, three limiting members 300 may be provided, and in this case, it is preferable that the three limiting members 300 are circumferentially and uniformly provided.
Specifically, the following detailed description is made to the specific structure of the prestressed steel strand anchor removing device in this embodiment.
Referring to fig. 2, in the embodiment, the mounting base includes a first positioning plate 100 and a connecting member 400, the first through hole 110 is disposed on the first positioning plate 100, one end of the connecting member 400 is fixedly connected to the first positioning plate 100, and the limiting members 300 are disposed on the connecting member 400 and spaced apart from the first positioning plate 100.
In this embodiment, it is preferable that the first through-hole 110 is formed in a shape matched with the cross-sectional shape of the working anchor 600, and when the working anchor 600 passes through the first through-hole 110, the first through-hole 110 may limit the relative fixation of the working anchor 600 in the radial direction thereof, so that the movement direction of the front end of the steel strand 500 is almost parallel to the axial direction of the working anchor 600 during the anchor releasing operation, thereby allowing the steel strand 500 to be more easily released from the working anchor 600.
In this embodiment, the mounting base may further include a second positioning plate 200, the second positioning plate 200 is fixedly connected to the other end of the connecting member 400, the second through hole 210 is disposed in the second positioning plate 200, and a working area for taking out the clip is formed between the limiting member 300 and the second positioning plate 200.
Specifically, when the steel strand 500 and the clamping pieces clamped between the steel strand 500 and the working anchor 600 are completely separated from the working anchor 600, the clamping pieces are moved to a working area, and a worker separates the clamping pieces from the steel strand 500 from the working area and moves the clamping pieces out of the working area. In addition, the connecting members 400 are fixedly connected with the first positioning plate 100 and the second positioning plate 200, so as to ensure that the axial direction of the first through hole 110 coincides with the axial direction of the second through hole 210, the limiting member 300 is installed on the connecting member 400, and one end of the limiting member extends into the region corresponding to the first through hole 110 and the second through hole 210, when the working anchor 600 passes through the first through hole 110, the limiting member 300 abuts against the end surface of the working anchor 600 facing the second positioning plate 200, and the interference between the limiting member 300 and the steel strand 500 is avoided. It is worth to say that, when the anchor withdrawing operation is performed, the steel strand 500 can be pulled to move by the jack 700, the jack 700 at this time can be movably abutted to the second positioning plate 200, a groove matched with the end face of the jack 700 can be formed in one side of the second positioning plate 200 departing from the first positioning plate 100, the jack 700 is in insertion fit with the groove to complete the radial relative fixation of the jack 700 and the second positioning plate 200 on the steel strand 500, and it is ensured that the moving end of the jack 700 is just aligned to the second through hole 210 on the second positioning plate 200. Alternatively, the jack 700 may be fixedly connected to the second positioning plate 200, such as being clamped or bolted.
Referring to fig. 1 and fig. 3, in the embodiment, a threaded hole is formed on the connecting member 400, an external thread matched with the threaded hole is formed on the limiting member 300, and the limiting member 300 is in threaded connection with the connecting member 400. Specifically, the limiting member 300 can be screwed in from the outward opening of the threaded hole and screwed out from the inward opening, and the screwed-out portion of the limiting member 300 from the threaded hole extends into the region corresponding to the first through hole 110 and the second through hole 210 and abuts against the working anchor 600. At this moment, according to the difference of the thickness of the terminal surface of work ground tackle 600, different length can be revolved out from the screw hole to locating part 300, on the basis of guaranteeing can not take place to interfere with steel strand wires 500 on the work ground tackle 600 for locating part 300 can fully butt with the terminal surface of work ground tackle 600, in order to guarantee to move back stable completion when the anchor operation spacing to work ground tackle 600, more difficult emergence is out of shape.
Above-mentioned setting for steel strand wires 500 and not unidimensional work ground tackle 600's the operation that breaks away from can be accomplished to prestressing force steel strand wires anchor removing device, use in a flexible way, have very high practicality.
In this embodiment, the position-limiting member 300 is a bolt or a screw, and the axial direction of the threaded hole is perpendicular to the axial direction of the first through hole 110.
This setting makes the area of contact when locating part 300 and the terminal surface butt of work ground tackle 600 bigger, when moving back the anchor operation, the interact power can not be too big between locating part 300 and the work ground tackle 600, and locating part 300 and work ground tackle 600 are difficult for taking place to warp, have reduced the intensity requirement to locating part 300 and work ground tackle 600.
It is worth to say that, the above arrangement also reduces the interaction force between the limiting member 300 and the threaded hole, and the external thread on the limiting member 300 and the internal thread in the threaded hole are less likely to deform, thereby ensuring the stability of the threaded connection between the limiting member 300 and the threaded hole.
Or, in this embodiment, the connecting member 400 may further include a third through hole 410, an axial direction of the third through hole 410 is perpendicular to an axial direction of the first through hole 110, the limiting member 300 is a limiting rod, and the limiting rod is in clearance fit with the third through hole 410.
The gag lever post can directly pass third through-hole 410 and stretch into the common region that corresponds of first through-hole 110 and second through-hole 210 promptly, and when work ground tackle 600 and gag lever post butt, the gag lever post can accomplish the spacing operation to work ground tackle 600 equally, and the prestressing force steel strand wires moved back anchor device this moment can accomplish the operation that breaks away from of steel strand wires 500 and not unidimensional work ground tackle 600 equally, uses in a flexible way, has very high practicality.
It should be noted that the third through hole 410 is not limited to a circular hole, and may also be a square hole, and correspondingly, the limiting member 300 is not limited to a column-shaped structure, and may also be a plate-shaped structure.
In this embodiment, the connecting member 400 includes connecting plates, the number of the connecting plates is the same as that of the limiting members 300, and the limiting members 300 are respectively disposed on the connecting plates in a one-to-one correspondence manner.
Specifically, when the first positioning plate 100 and the second positioning plate 200 are both square plates, the connecting plate is preferably a flat plate; when the first positioning plate 100 and the second positioning plate 200 are both circular plates, the connecting plate is preferably an arc-shaped plate, and the connecting plate needs to have a certain thickness to avoid deformation and damage of the joint of the connecting plate and the limiting member 300 due to excessive stress when the anchor withdrawing operation is performed.
This embodiment preferably provides that the connection plate is a flat plate.
At this moment, the number of connecting plates can be two, and two connecting plates are parallel to each other, and the region that encloses between two connecting plates, second locating plate 200 and locating part 300 is the workspace that is used for taking out the clamping piece promptly, and when moving back the anchor operation, the staff stretches into the workspace by the opening that forms between two connecting plates to accomplish breaking away from and taking out operation of clamping piece and steel strand wires 500.
Or, in this embodiment, the number of the connecting plates may also be four, and the adjacent connecting plates are arranged perpendicular to each other.
At the moment, two adjacent connecting plates can be arranged at intervals, or the edge of one connecting plate is abutted against the edge of the adjacent connecting plate; the number of the limiting members 300 is four, and at this time, a maximum of four limiting members 300 may be operated to simultaneously abut against the end surface of the working anchor 600, so as to limit the working anchor 600.
When setting up two liang mutual butts of four connecting plates in order to seal the workspace, one of them connecting plate need be equipped with intercommunication workspace and external opening to make things convenient for the staff to observe steel strand wires 500 move back the anchor progress, also be convenient for take out clamping piece and steel strand wires 500 separation and from the workspace.
In this embodiment, first locating plate 100, second locating plate 200 and connecting plate all prefer to set up to corrosion resistant plate, make the one end of connecting plate and first locating plate 100 welding again, the other end and the welding of second locating plate 200 for prestressing force steel strand wires move back anchor device overall structure more stable, and satisfy required intensity when moving back the anchor.
Example two
The embodiment provides an anchor withdrawing device for prestressed steel strands, which comprises a jack 700 and the anchor withdrawing device for prestressed steel strands as described in any one of the previous embodiments, wherein the jack 700 abuts against one end of the mounting seat provided with the second through hole 210 and clamps the steel strands 500 extending out of the second through hole 210.
The anchor equipment is moved back to prestressing force steel strand that this embodiment provided moves back anchor device through adopting above-mentioned prestressing force steel strand to move back anchor device, and is corresponding, and this prestressing force steel strand moves back anchor equipment has above-mentioned prestressing force steel strand and moves back all advantages of anchor device, and here is no longer repeated.
It should be noted that, in the case of conflict, the features in the embodiments of the present invention may be combined with each other.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The anchor withdrawing device for the prestressed steel strand is characterized by comprising an installation base and at least two limiting pieces (300);
one end of the mounting seat is provided with a first through hole (110) for a working anchor (600) to pass through, the other end of the mounting seat is provided with a second through hole (210) for a steel strand (500) to pass through, the limiting parts (300) are movably arranged on the mounting seat, and any two limiting parts (300) can be mutually far away from and close to each other so as to complete the butt joint with the end face of the working anchor (600).
2. The prestressed steel strand anchor removing device according to claim 1, wherein the mounting seat comprises a first positioning plate (100) and a connecting member (400), the first through hole (110) is disposed in the first positioning plate (100), one end of the connecting member (400) is fixedly connected to the first positioning plate (100), and the limiting member (300) is disposed in the connecting member (400) and spaced from the first positioning plate (100).
3. The prestressed steel strand anchor removing device according to claim 2, wherein the mounting base further comprises a second positioning plate (200), the second positioning plate (200) is fixedly connected with the other end of the connecting member (400), the second through hole (210) is formed in the second positioning plate (200), and a working area for taking out a clamping piece is formed between the limiting member (300) and the second positioning plate (200).
4. The prestressed steel strand anchor removing device according to claim 3, wherein a threaded hole is formed in the connecting member (400), the limiting member (300) is provided with an external thread matched with the threaded hole, and the limiting member (300) is in threaded connection with the connecting member (400).
5. The prestressed steel strand anchor removing device as claimed in claim 4, wherein the axial direction of the threaded hole is perpendicular to the axial direction of the first through hole (110).
6. The prestressed steel strand anchor removing device according to claim 3, wherein a third through hole (410) is provided on the connecting member (400), the limiting member (300) is a limiting rod, and the limiting rod is in clearance fit with the third through hole (410).
7. The prestressed steel strand anchor removing device according to any one of claims 3 to 6, wherein the connecting member (400) comprises connecting plates, the number of the connecting plates is the same as that of the limiting members (300), and a plurality of the limiting members (300) are respectively disposed on the connecting plates in a one-to-one correspondence.
8. The prestressed steel strand anchor withdrawing device of claim 7, wherein the number of said connecting plates is four, and adjacent connecting plates are arranged perpendicular to each other.
9. The prestressed steel strand anchor removing device of claim 7, wherein at least one of said connecting plates is provided with an opening communicating said working area with the outside.
10. An anchor withdrawal apparatus for prestressed steel strands, comprising a jack (700) and the device for withdrawing prestressed steel strands according to any one of claims 1 to 9;
the jack (700) is abutted against one end of the mounting seat, which is provided with the second through hole (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921231527.XU CN210439703U (en) | 2019-07-31 | 2019-07-31 | Prestressed steel strand anchor withdrawing device and prestressed steel strand anchor withdrawing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921231527.XU CN210439703U (en) | 2019-07-31 | 2019-07-31 | Prestressed steel strand anchor withdrawing device and prestressed steel strand anchor withdrawing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210439703U true CN210439703U (en) | 2020-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921231527.XU Active CN210439703U (en) | 2019-07-31 | 2019-07-31 | Prestressed steel strand anchor withdrawing device and prestressed steel strand anchor withdrawing equipment |
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| Country | Link |
|---|---|
| CN (1) | CN210439703U (en) |
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2019
- 2019-07-31 CN CN201921231527.XU patent/CN210439703U/en active Active
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