Retrievable anchoring device

Abstract

The utility model discloses a recyclable anchoring device, which includes a stand, whose lower end is an I-shaped connecting part, the upper wing plate of the I-shaped connecting part is a square plate body, the lower wing plate is a rectangular plate body, and the web between the upper wing plate and the lower wing plate is a square plate body whose long side is shorter than the long side of the lower wing plate; two or more resistance baffles, which are evenly distributed and hinged on the circumference of the stand; a locking mechanism, which is used to support, lock and unlock the downward swing of the resistance baffle, and the locking mechanism includes a first support plate located below the resistance baffle, a second support plate located below the first support plate, and a second steel strand used to pull the second support plate to rotate to release the support for the first support plate. The utility model can unlock heavier resistance baffles, meet the recycling of anchoring devices with high pull-out resistance, and overcome the problem that conventional electric and hydraulic equipment are not durable when out of stock.

Description

Technical Field

[0001] The utility model relates to the technical field of anchoring devices, and more specifically, to a recyclable anchoring device. Background Art

[0002] With the increasing number of large and high-rise buildings, the number of foundations using pile foundations has also increased. At present, the methods used for pile foundation inspection and testing in the field of construction engineering are mostly ballasting, anchor pile method and ground anchor method. Due to the load source, stacking and transportation difficulties of the ballasting method, the anchor pile method and ground anchor method are usually given priority; and in the foundation pit slope support of deep foundation pit projects, anchor support is also required. Anchoring is to lower the anchor device into the anchor hole and insert it into the anchor hole to obtain the reaction force, but due to the large depth of the anchor hole, narrow space, and harsh environment (such as water, mud, etc.), the lowered and deployed anchor device is difficult to recycle.

[0003] In this regard, the applicant has previously studied a recyclable foundation pit support anchor cable anchor rod support frame (Announcement No. CN105862870B), which sets a pin-off device under the support top plate that controls the swing down of the resistance baffle. The pin-off device pulls the pin out of the frame pin hole by means of electric or hydraulic cables to release the support of the resistance baffle by the support top plate. However, due to the harsh environment of the anchor hole, the electric or hydraulic equipment is easily damaged, which greatly affects the recycling effect. In actual application, the anchor device usually reaches tons and is heavy. It is very difficult to control the pin to be pulled out of the frame pin hole by only using a cable. Therefore, it is urgent to improve the above-mentioned defects. Utility Model Content

[0004] An object of the present invention is to solve at least the above-mentioned disadvantages and to provide at least the advantages to be described below.

[0005] Another object of the utility model is to provide a recyclable anchoring device, which releases the support for the first support plate by pulling the second support plate through the steel strand, thereby unlocking the heavier resistance baffle, meeting the recycling of the anchoring device with high pull-out resistance, and overcoming the problem of the conventional electric and hydraulic equipment being not durable when being out of stock.

[0006] The utility model provides a recyclable anchoring device, which comprises:

[0007] The stand has an I-shaped connecting portion at its lower end, the upper wing plate of the I-shaped connecting portion is a square plate, the lower wing plate is a rectangular plate, and the web plate between the upper wing plate and the lower wing plate is a square plate whose long side is shorter than the long side of the lower wing plate, so that two left and right grooves are formed between the upper wing plate, the lower wing plate and the web plate;

[0008] Two or more resistance baffles are evenly distributed around the frame, one end of each resistance baffle is hinged above the upper wing plate and close to the upper wing plate, so that the resistance baffle can swing up and down around the hinge point;

[0009] A locking mechanism, which is used to support, lock and unlock the downward swing of the resistance baffle, and the locking mechanism includes:

[0010] A first support plate, which is a hard plate body, is located below the resistance baffle and is used to provide a reaction force support for the resistance baffle to swing downward; the width of the first support plate is greater than the distance between the hinge points of the two resistance baffles, and a first through hole is provided in the center of the first support plate, which can penetrate the I-shaped connecting portion and match and sleeve with the upper wing plate;

[0011] A second support plate, which is a hard plate body, is located below the first support plate and is used to support the first support plate; a second through hole is provided in the center of the second support plate, which can penetrate the I-shaped connecting part and can be rotated and clamped on the web;

[0012] The second steel strand is used for pulling the second support plate to rotate so as to release the support for the first support plate.

[0013] Preferably, the second through hole of the second support plate consists of a rectangular hole and a circular hole, the long side of the rectangular hole is greater than the long side of the lower wing plate, and the wide side is greater than the wide side of the lower wing plate; the circular hole is opened in the center of the rectangular hole, and the center of the circular hole overlaps with the center of the rectangular hole, the diameter of the circular hole is greater than the diagonal length of the horizontal cross-section of the web and less than the long side length of the lower wing plate; the thickness of the second support plate is slightly smaller than the height of the web.

[0014] Preferably, the non-groove side surfaces of the upper wing plate, the lower wing plate and the web are in the same plane.

[0015] Preferably, a sliding device is provided between the first support plate and the second support plate; the sliding device comprises: an arc-shaped groove provided on the bottom surface of the first support plate and a plurality of ball bearings provided on the top surface of the second support plate, the plurality of ball bearings are symmetrically distributed on the top surface of the second support plate and are matched with the arc-shaped groove in a rolling connection; the center of the arc-shaped groove overlaps with the center of the circular hole.

[0016] Preferably, the plurality of balls are replaced by a plurality of cylindrical bearings, and the axial intersection points of the plurality of cylindrical bearings overlap with the center of the circular hole.

[0017] Preferably, the connection points between the two ends of the second steel strand and the second support plate are on the edge of the second support plate, and the connection points are located on the extended line of the center line of the rectangular hole;

[0018] The first support plate and the second support plate are both circular plates, and the diameter of the second support plate is smaller than that of the first support plate; two third through holes are arranged on the outer ring plate of the first support plate, and the lower ports of the two third through holes are arranged on the extension line of the center line of the square first through hole; when the rectangular hole is aligned with the lower wing plate, the center line of the first through hole is parallel to the center line of the rectangular hole, and the lower ports of the two third through holes are aligned with the connection point; the second steel strand can be slidably inserted into the third through hole, and the two ends of the second steel strand are connected to the connection point after passing through the two third through holes respectively.

[0019] Preferably, the upper ends of the two third through holes are arranged along the rotation unlocking direction of the second support plate, so that the third through holes form channels inclined along the rotation unlocking direction of the second support plate.

[0020] Preferably, it further comprises two hanging ears, which are respectively arranged at the connection points between the two ends of the second steel strand and the second support plate, and are used to provide connection to the two ends of the second steel strand.

[0021] Preferably, one end of the resistance baffle is hinged by providing a fourth through hole on the stand, a pivot support block is passed through the fourth through hole, pivot holes are provided at both ends of the pivot support block, and the resistance baffle is rotatably connected to the pivot hole via the pivot, so that the resistance baffle can swing up and down around the pivot.

[0022] Preferably, a fifth through hole is provided at the upper end of the frame for connecting the first steel strand.

[0023] The utility model at least has the following beneficial effects:

[0024] First, the utility model has a simple structure and a stable support. The second support plate is rotated by pulling the steel strand to release the support for the first support plate, and can unlock the heavier resistance baffle, meet the recycling of the anchor device with high pull-out resistance, and overcome the problem that the conventional electric and hydraulic equipment required for out-of-stock is not durable.

[0025] Second, the utility model sets a sliding device between the first support plate and the second support plate, so that the rotation between the second support plate and the first support plate is more stable.

[0026] Third, the third through hole of the utility model forms a channel inclined along the rotation unlocking direction of the second support plate, which is conducive to the second steel strand pulling the second support plate to rotate and unlock.

[0027] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the recyclable anchoring device of the utility model;

[0029] Figure 2 This is a schematic diagram of the exploded structure of the recyclable anchoring device of the utility model (the resistance baffle is not shown);

[0030] Figure 3 A schematic diagram of a top view of a second support plate of the recyclable anchoring device of the utility model;

[0031] Figure 4 This is a schematic diagram of the combination of the rectangular hole and the circular hole of the second support plate of the present invention (the shape of the circular hole is shown by the dotted line);

[0032] Figure 5 This is a schematic diagram of a top view of another implementation form of the second support plate of the recyclable anchoring device of the utility model.

[0033] Among them: resistance baffle 24; stand 25; fifth through hole 1; shaft support block 2; first support plate 3; lug 4; second support plate 5; second steel strand 6; fourth through hole 7; upper wing plate 8; groove 9; web 10; lower wing plate 11; I-shaped connecting part 12; first through hole 13; third through hole 14; second through hole 15; ball 16; rectangular hole 17; circular hole 18; cylindrical bearing 19; locking mechanism 20. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with embodiments so that those skilled in the art can implement the invention with reference to the description.

[0035] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial sources unless otherwise specified; in the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, set, or detachably connected, set, or connected and set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood in specific circumstances. The orientation or position relationship indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0036] like Figure 1-4 As shown, the utility model discloses a recyclable anchoring device, which comprises:

[0037] The stand 25 may be a square plate, a triangular plate or a cylinder, and its lower end is an I-shaped connecting portion 12, that is, the I-shaped connecting portion 12 and the stand 25 are integrally formed as a force-bearing body, the upper wing plate 8 of the I-shaped connecting portion 12 is a square plate, the lower wing plate 11 is a rectangular plate, and the web 10 between the upper wing plate 8 and the lower wing plate 11 is a square plate whose long side is shorter than the long side of the lower wing plate 11, so that two left and right grooves 9 are formed between the upper wing plate 8, the lower wing plate 11 and the web 10;

[0038] Two or more resistance baffles 24 are evenly distributed around the frame 25, one end of each resistance baffle 24 is hinged above the upper wing plate 8 and close to the upper wing plate 8, so that the resistance baffle 24 can swing up and down around the hinge point;

[0039] The locking mechanism 20 is used to support, lock and unlock the resistance baffle 24 when it swings downward. The locking mechanism 20 includes:

[0040] The first support plate 3 is a hard plate body, which is located below the resistance baffle 24 and is used to provide a reaction force support for the resistance baffle 24 to swing downward, so that the resistance baffle 24 can be kept horizontally opened and stable under the action of the first support plate 3; the width of the first support plate 3 is greater than the distance between the hinge points of the two resistance baffles 24, and the center of the first support plate 3 is provided with a first through hole 13 that can penetrate the I-shaped connecting portion 12 and match and sleeve with the upper wing plate 8;

[0041] The second support plate 5 is a hard plate body, which is located below the first support plate 3 and is used to support the first support plate 3; the second support plate 5 is centrally provided with a second through hole 15 which can penetrate the I-shaped connecting portion 12 and can be rotated and clamped on the web 10;

[0042] The second steel strand 6 is used for pulling the second support plate 5 to rotate so as to release the support for the first support plate 3 .

[0043] The design of the present invention can unlock the heavier resistance baffle 24, meet the needs of recycling the anchor device with high pull-out resistance, and overcome the problem that the conventional electric and hydraulic equipment required for unpinning is not durable.

[0044] On the basis of the above implementation form, the second through hole 15 of the second support plate 5 is composed of a rectangular hole 17 and a circular hole 18, the long side of the rectangular hole 17 is greater than the long side length of the lower wing plate 11, and the wide side is greater than the wide side length of the lower wing plate 11; the circular hole 18 is opened in the center of the rectangular hole 17, and the center of the circular hole 18 overlaps with the center of the rectangular hole 17, the diameter of the circular hole 18 is greater than the diagonal length of the horizontal cross-section of the web 10 and less than the long side length of the lower wing plate 11; the thickness of the second support plate 5 is slightly smaller than the height of the web 10.

[0045] On the basis of the above implementation, the side surfaces of the upper wing plate 8, the lower wing plate 11 and the web plate 10 other than the groove 9 are in the same plane, which is beneficial to the production process and convenient for installation.

[0046] On the basis of the above implementation form, a sliding device is arranged between the first support plate 3 and the second support plate 5; the sliding device includes: an arc groove arranged on the bottom surface of the first support plate 3 and a plurality of balls 16 arranged on the top surface of the second support plate 5, the plurality of balls 16 are symmetrically distributed on the top surface of the second support plate 5, and are matched with the arc groove for rolling connection; the center of the arc groove overlaps with the center of the circular hole 18.

[0047] Based on the above implementation form, Figure 5 As shown, the plurality of balls 16 are replaced by a plurality of cylindrical bearings 19, and the axial intersection of the plurality of cylindrical bearings 19 overlaps with the center of the circular hole 18. In this way, the second support plate 5 and the first support plate 3 can rotate more smoothly.

[0048] Based on the above implementation, the connection points between the two ends of the second steel strand 6 and the second support plate 5 are on the edge of the second support plate 5, and the connection points are located on the extended line of the center line of the rectangular hole 17;

[0049] The first support plate 3 and the second support plate 5 are both circular plates, and the diameter of the second support plate 5 is smaller than that of the first support plate 3; two third through holes 14 are arranged on the outer ring plate of the first support plate 3 which is wider than the second support plate 5, and the lower ports of the two third through holes 14 are arranged on the extended line of the center line of the square first through hole 13; when the rectangular hole 17 is aligned with the lower wing plate 11, that is, when the first through hole 13 is aligned with the rectangular hole 17, the center line of the first through hole 13 is parallel to the center line of the rectangular hole 17, and the lower ports of the two third through holes 14 are aligned with the connection point; the second steel strand 6 can be slidably arranged with the third through hole 14, and the two ends of the second steel strand 6 are respectively connected to the connection point after passing through the two third through holes 14. The beneficial effect brought by such a design is that the second steel strand 6 can better pull the second support plate 5 to rotate to release the support for the first support plate 3, and realize the support locking and unlocking of the resistance baffle 24.

[0050] When the utility model is applied to the pile compressive static load detection, the implementation process is as follows:

[0051] When it is necessary to lower the anchor device to the anchor hole, first install the locking mechanism 20 on the I-shaped connecting part 12 on the ground, specifically: the first through hole 13 and the second through hole 15 of the first support plate 3 and the second support plate 5 are both inserted into the I-shaped connecting part 12, and the first through hole 13 reaches the upper wing plate 8 for matching and sleeve connection, and after the second through hole 15 reaches the position of the web 10, the second support plate 5 is rotated so that the rectangular hole 17 of the second support plate 5 is misaligned or cross-intersected with the square first through hole 13 of the first support plate 3. At this time, the second support plate 5 can support the first support plate 3, and the first support plate 3 can support and lock the resistance baffle 24 to prevent the resistance baffle 24 from swinging downward, making it open and stable, but not affecting the upward swinging of the resistance baffle 24, which is conducive to the lowering of the anchor device.

[0052] The first steel strand is connected to the upper end of the stand 25, and the crane pulls the first steel strand to lower the anchor device, while the second steel strand 6 is connected to the rope for traction, but no tension is applied to the second steel strand 6. After it is lowered into place, the first steel strand is slowly pulled up, and the resistance baffle 24 on the stand 25 will bite into the wall of the anchor hole from shallow to deep, forming a large load upward pull-out comprehensive resistance body, which enhances the pull-out resistance of the anchor device. When the anchor device cannot continue to be pre-tensioned upward to achieve prestress under the resistance of the anchor hole, the first steel strand can be fastened to the anchor beam to carry out the next step of pile compressive static load test.

[0053] When the compressive static load test is completed, the fastening of the first steel strand to the anchor device and the anchor beam is released, the anchoring force of the anchor device is released, and the first steel strand is hung on the hook of the crane with a reserved distance; then the crane pulls the second steel strand 6 upward, and the second support plate 5 is rotated under the first support plate 3 under the pulling force of the second steel strand 6 until the rectangular hole 17 is aligned with the first through hole 13. At this time, the lower wing plate 11 of the I-shaped connection part 12 corresponds to the rectangular hole 17 of the second support plate 5. Under the action of gravity, the first support plate 3 and the second support plate 5 fall down and separate from the I-shaped connection part 12, releasing the support for the resistance baffle 24. Then the crane is used to pull the first steel strand at the same time. During the upward pulling process of the frame 25, the resistance baffle 24 swings downward around the hinge point, so that the large resistance anchor device can be quickly and effectively recovered, and at the same time, the problem of equipment durability caused by conventional electric and hydraulic methods that are required for destocking can be overcome.

[0054] On the basis of the above implementation, the upper ends of the two third through holes 14 are arranged along the rotation unlocking direction of the second support plate 5, so that the third through holes 14 form a channel inclined along the rotation unlocking direction of the second support plate 5, which is beneficial for the second steel strand 6 to pull the second support plate 5 to rotate. Preferably, the angle between the inclined channel and the horizontal plane is 85-90°.

[0055] On the basis of the above implementation, two hanging ears 4 are further included, which are respectively arranged at the connection points between the two ends of the second steel strand 6 and the second support plate 5, and are used to provide connection to the two ends of the second steel strand 6.

[0056] On the basis of the above-mentioned implementation form, one end of the resistance baffle 24 is hinged specifically by setting a fourth through hole 7 on the stand 25, a shaft support block 2 is passed through the fourth through hole 7, shaft holes are set at both ends of the shaft support block 2, and the resistance baffle 24 is rotatably connected to the shaft hole through the shaft, so that the resistance baffle 24 can swing up and down around the shaft.

[0057] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and the embodiments. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily realized.

Claims

1. A recyclable anchoring device, characterized in that: include: The stand has an I-shaped connecting portion at its lower end, the upper wing plate of the I-shaped connecting portion is a square plate, the lower wing plate is a rectangular plate, and the web plate between the upper wing plate and the lower wing plate is a square plate whose long side is shorter than the long side of the lower wing plate, so that two left and right grooves are formed between the upper wing plate, the lower wing plate and the web plate; Two or more resistance baffles are evenly distributed around the frame, one end of each resistance baffle is hinged above the upper wing plate and close to the upper wing plate, so that the resistance baffle can swing up and down around the hinge point; A locking mechanism, which is used to support, lock and unlock the downward swing of the resistance baffle, and the locking mechanism includes: A first support plate, which is a hard plate body, is located below the resistance baffle and is used to provide a reaction force support for the resistance baffle to swing downward; the width of the first support plate is greater than the distance between the hinge points of the two resistance baffles, and a first through hole is provided in the center of the first support plate, which can penetrate the I-shaped connecting portion and match and sleeve with the upper wing plate; A second support plate, which is a hard plate body, is located below the first support plate and is used to support the first support plate; a second through hole is provided in the center of the second support plate, which can penetrate the I-shaped connecting part and can be rotated and clamped on the web; The second steel strand is used for pulling the second support plate to rotate so as to release the support for the first support plate.

2. The retrievable anchoring device according to claim 1, characterized in that: The second through hole of the second support plate consists of a rectangular hole and a circular hole, the long side of the rectangular hole is greater than the long side of the lower wing plate, and the wide side is greater than the wide side of the lower wing plate; the circular hole is opened in the center of the rectangular hole, and the center of the circular hole overlaps with the center of the rectangular hole, the diameter of the circular hole is greater than the diagonal length of the horizontal cross-section of the web and less than the long side length of the lower wing plate; the thickness of the second support plate is slightly smaller than the height of the web.

3. The retrievable anchoring device according to claim 2, characterized in that: The non-groove side surfaces of the upper wing plate, the lower wing plate and the web plate are in the same plane.

4. The retrievable anchoring device according to claim 3, characterized in that: A sliding device is arranged between the first support plate and the second support plate; the sliding device comprises: an arc-shaped groove arranged on the bottom surface of the first support plate and a plurality of ball bearings arranged on the top surface of the second support plate, the plurality of ball bearings are symmetrically distributed on the top surface of the second support plate and are matched with the arc-shaped groove and rollingly connected; the center of the arc-shaped groove overlaps with the center of the circular hole.

5. The retrievable anchoring device according to claim 4, characterized in that: The plurality of balls are replaced by a plurality of cylindrical bearings, and the axial intersection points of the plurality of cylindrical bearings overlap with the center of the circular hole.

6. The retrievable anchoring device according to any one of claims 2 to 5, characterized in that: The connection points between the two ends of the second steel strand and the second support plate are on the edge of the second support plate, and the connection points are located on the extended line of the center line of the rectangular hole; The first support plate and the second support plate are both circular plates, and the diameter of the second support plate is smaller than that of the first support plate; two third through holes are arranged on the outer ring plate of the first support plate, and the lower ports of the two third through holes are arranged on the extension line of the center line of the square first through hole; when the rectangular hole is aligned with the lower wing plate, the center line of the first through hole is parallel to the center line of the rectangular hole, and the lower ports of the two third through holes are aligned with the connection point; the second steel strand can be slidably inserted into the third through hole, and the two ends of the second steel strand are connected to the connection point after passing through the two third through holes respectively.

7. The retrievable anchoring device according to claim 6, characterized in that: The upper ends of the two third through holes are arranged along the rotation unlocking direction of the second support plate, so that the third through holes form channels inclined along the rotation unlocking direction of the second support plate.

8. The retrievable anchoring device according to claim 7, characterized in that: It also includes two hanging ears, which are respectively arranged at the connection points between the two ends of the second steel strand and the second support plate, and are used to provide connection to the two ends of the second steel strand.

9. The retrievable anchoring device according to claim 8, characterized in that: One end of the resistance baffle is hinged specifically by setting a fourth through hole on the stand, a shaft support block is passed through the fourth through hole, shaft holes are set at both ends of the shaft support block, and the resistance baffle is rotatably connected to the shaft hole through the shaft, so that the resistance baffle can swing up and down around the shaft.

10. The retrievable anchoring device according to claim 9, characterized in that: A fifth through hole is provided at the upper end of the frame for connecting the first steel strand.

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