Soil layer anchor rod for supporting foundation deep foundation pit

Abstract

The utility model provides a soil layer anchor rod for supporting a foundation deep foundation pit, which comprises an anchor rod main body, and the anchor rod main body comprises an anchor head and an anchor cylinder connected with the anchor head; the fixing plate is connected with the outer side of the foundation pit formwork and moves in the width direction of the anchor cylinder; the screw rod is located in the anchor cylinder, the linkage mechanisms are in threaded connection to the screw rod, and during rotation of the screw rod, the linkage mechanisms drive the anchor cylinder to move horizontally, so that limiting clamping blocks on the linkage mechanisms stretch out of first through holes of the anchor cylinder and are inserted into anchor rod insertion holes in a foundation pit; the linkage mechanism comprises a first conical block which is assembled in the vertical direction and forms a through hole, and second conical blocks are formed on the two sides of the first conical block respectively. The limiting clamping block is located above the second conical block and is perpendicular to the second conical block. The second cone block is attached to the inclined face of the first cone, and the spring arranged on the limiting clamping block in a sleeving mode is fixed to the second cone block. A plurality of limiting blocks are arranged on the short edge of the first conical block, and a plurality of grooves which are embedded in a sliding mode are formed in the length direction of the anchor cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support, in particular to a soil anchor rod for deep foundation pit support of a foundation. Background Technique

[0002] With the continuous development of urban construction in China, a large number of high-rise buildings have emerged, and the number of deep foundation pit projects has been increasing. In deep foundation pit support projects, a pile-anchor support structure system is often adopted. As an important support method for building foundation pits, prestressed anchor cable support is very widely used.

[0003] In order to increase the anchoring force, the existing anchor rods usually have patterns on the rod body to increase the friction force, and some are provided with barbs, etc., so that the anchor rods can have better grasping force when generating outward displacement. However, since the rod bodies of these anchor rods are not smooth, there will be resistance during the insertion process, which makes it more laborious for personnel to install. Therefore, a soil anchor rod for deep foundation pit support is proposed to optimize and solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a soil anchor rod for deep foundation pit support of a foundation. Through a linkage mechanism, the anchor rod is inserted into the jacks on the foundation pit from two directions respectively. On the basis of ensuring that the surface of the anchor rod is smooth and inserted horizontally, the firm assembly of the outer periphery of the subsequent anchor rod body and the anchor rod jacks in the foundation pit is ensured.

[0005] To achieve the above purpose, the utility model is realized through the following technical solutions.

[0006] A soil anchor rod for deep foundation pit support of a foundation, including an anchor rod body, and the anchor rod body includes an anchor head and an anchor barrel connected to the anchor head;

[0007] A fixing plate connected to the outside of the foundation pit formwork and moving along the width direction of the anchor barrel;

[0008] A screw rod located in the anchor barrel, and a plurality of linkage mechanisms threadedly connected to the screw rod. During the rotation of the screw rod, the linkage mechanisms drive the anchor barrel to move horizontally, so that the limit blocks on the linkage mechanisms extend out of the first through holes of the anchor barrel and are inserted into the anchor rod jacks on the foundation pit;

[0009] The linkage mechanism includes a first cone block assembled in the vertical direction to form a through hole, and second cone blocks respectively extending along the horizontal direction on both sides of the first cone block;

[0010] The limit block is located above the second cone block and is vertically arranged with the second cone block;

[0011] The second cone block is attached to the inclined surface of the first cone body, and a spring sleeved on the limit block is fixed on the second cone block;

[0012] A number of limiting blocks are provided on the short side of the first conical block. A number of sliding grooves are provided along the length direction of the anchor tube.

[0013] Further, a vertical opening facing the anchor tube is provided in the width direction of the fixed plate, and the anchor tube is inserted into the vertical opening.

[0014] Further, a rotating cylinder is connected to the outside of the fixed plate through a bearing seat, and a rotating ring for starting the rotation of the rotating cylinder to approach or move away from the fixed plate is provided at the bottom of the rotating cylinder.

[0015] Further, a cylinder body embedded outside the anchor tube is further included, and a number of tooth rings are provided at intervals on the outer circumference of the cylinder body.

[0016] Further, a number of racks are provided along the circumferential direction of the rotating cylinder, and the distance formed between adjacent racks is equal to the distance between adjacent tooth rings.

[0017] Further, the end of the screw rod is connected with a rotating seat, the rotating seat penetrates through the anchor tube, and a second through hole for the rotating connection of the rotating seat to penetrate through is provided on the anchor tube.

[0018] The beneficial effects of the present utility model are as follows:

[0019] In the present utility model, by using the anchor head on the anchor tube to insert it into the foundation pit, during this process, the outer circumference of the anchor tube is smooth. In order to better insert it, at this time, a number of linkage mechanisms provided on the outer circumference of the anchor tube drive the limiting blocks to extend out under the rotation of the screw rod and enter the foundation pit, improving the anchoring force.

[0020] In the utility model, the anchor rod main body is first passed through the foundation pit formwork and inserted into the anchor rod insertion hole pre-drilled on the wall of the deep foundation pit. Subsequently, the limiting convex block and the rotating seat on the anchor head drive the screw rod to rotate, thereby driving a number of first conical blocks in a number of telescopic mechanisms on the screw rod to move within the anchor tube. Furthermore, a number of second conical blocks are driven to move by the number of first conical blocks, and a number of limiting insertion blocks move and extend out on the anchor tube and squeeze the springs, so that the number of limiting insertion blocks are inserted into the hole wall of the anchor rod insertion hole opened in the foundation pit, so that the anchor rod main body is firmly fixed to the anchor rod insertion hole, so that the anchor rod main body not only maintains the smoothness of the outer surface of the anchor rod for easy insertion, but also can improve the anchoring force of the anchor rod main body during use through the telescopic limiting insertion blocks. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of a soil anchor rod for deep foundation pit support of a foundation provided by the present utility model.

[0022] Figure 2 It is a schematic structural diagram of a part in a soil anchor rod for deep foundation pit support of a foundation provided by the present utility model.

[0023] Figure 3 The utility model provides a top view of the local structure of a soil layer anchor rod for supporting a deep foundation pit.

[0024] In the figure:

[0025] 1. Anchor rod body; 2. Anchor cylinder; 3. Anchor head; 4. Limit block; 5. Cylinder body; 6. Fixed plate; 7. Rotating cylinder; 8. Rotating ring; 9. Screw; 10. Rotating seat; 11. Telescopic mechanism; 12. First cone block; 13. Limit block; 14. Second cone block; 15. Spring; 16. First through hole; 17. Groove; 18. Second through hole. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0027] See attached Figures 1 - 3 As shown, a soil anchor rod for supporting a deep foundation pit in this embodiment includes an anchor rod body 1, wherein the anchor rod body 1 includes an anchor head 3 and an anchor barrel 2 connected to the anchor head 3; in order to be connected to the foundation pit template, a fixing plate 6 moving along the width direction of the anchor barrel 2 is further included, wherein the width here can be understood as the diameter direction of the anchor barrel, and then the fixing plate 6 is connected to the outer side of the foundation pit template to ensure stability;

[0028] In order to facilitate the control of the entire movement, a screw rod 9 is provided in the anchor barrel 2, and then a number of linkage mechanisms are connected in the thread of the screw rod 9 in the length direction. When the thread rotates, these linkage mechanisms will be linked to make horizontal movement. In the horizontal movement, the limit block 13 will move close to and away from the first through hole 16 on the anchor barrel 2. When moving to the set position, it will align with the first through hole 16 and then pass through the first through hole 16. In this process, the penetration in the vertical direction is completed, and the effect of penetration and fixing in two directions is achieved.

[0029] In the width direction of the fixing plate 6, a vertical opening is opened toward the anchor cylinder 2, and the anchor cylinder 2 is inserted into the vertical opening. At this time, the fixing plate is wider, and the opening is increased, so that the opening of the anchor cylinder 6 moves in the vertical direction of the anchor cylinder, and the height adjustment of the fixing plate 6 can be achieved.

[0030] In order to compress the fixed plate 6 and tighten it, a rotating drum 7 is connected to the outside of the fixed plate 6 through a bearing seat, and a rotating ring 8 is provided at the bottom of the rotating drum 7 to start the rotating drum 7 to rotate close to or away from the fixed plate 6. The rotating ring 8 rotates forward and reversely, and then approaches or moves away from the fixed plate along the gear of the bearing seat. When it approaches the fixed plate 6, it can apply force to the fixed plate 6, thereby pressing the fixed plate 6 and completing its clamping.

[0031] In this embodiment, a cylinder 5 of a set length is arranged at one end of the anchor cylinder 2 away from the linkage mechanism. A plurality of gears are arranged at intervals on the cylinder 5, and when the cylinder 5 rotates, the racks meshing therewith can move.

[0032] In this embodiment, the rotating drum 5 is provided with a plurality of racks along the circumferential direction, and the spacing between adjacent racks is equal to the spacing between adjacent gear rings. Therefore, when the rotating drum 7 rotates, the racks can be meshed with the corresponding gears to ensure connection. When the drum body 5 is rotated, the racks on the rotating drum 7 are driven to move up and down, and then the fixed plate 6 is moved up and down in linkage to complete the position adjustment.

[0033] As for the linkage mechanism, it specifically includes a first cone block 12 assembled in the vertical direction to form a perforated hole, and the two sides of the first cone block 12 extend in the horizontal direction to form a second cone block 14. In this embodiment, the first cone block 12 is directly penetrated on the screw rod 9 and rotates therewith, while the second cone block 14 is arranged in the horizontal direction. During the self-rotation of the screw rod 9, the first cone block 12 is moved horizontally to the left and right. In this process, the second cone block 14 is driven to move synchronously to the left and right, and then approach or move away from the first through hole 16. In this process, the limit block 13 on the second cone block 14, which is perpendicular to it, also synchronously approaches and moves away from the first through hole, and completes the penetration with the first through hole when the position is set.

[0034] In order to ensure the reset, the second vertebral body 14 is fitted on the inclined surface of the first cone block 12, and is driven to move up and down along the inclined surface during the horizontal movement of the inclined surface, and the spring 15 sleeved on the limit block 13 is fixed on the second vertebral body 14. At this time, once the limit block 13 enters the first through hole 16, the compressed spring is reset to assist the penetration.

[0035] In order to achieve the fixation of the first vertebral body 12, a plurality of limit blocks 4 are provided on the short side of the first cone block 12, and a plurality of sliding grooves 17 are provided in the length direction of the anchor barrel 2. When the screw is rotating, the limit blocks 4 on the anchor barrel 2 enter the grooves 17 at the set position to complete the fixation.

[0036] To ensure the fixation of the screw rod 9, a rotating seat 10 is connected to the end of the screw rod 9. The rotating seat 10 penetrates through the anchor barrel 2, and a second through hole 18 for the rotating connection of the rotating seat 10 is provided on the anchor barrel 2. At this time, the fixation of the end of the screw rod 9 is completed.

[0037] Please refer to Figures 1 to 3 , in the embodiment of the present invention, an earth anchor for deep foundation pit support includes an anchor rod main body 1, an anchor barrel 2, an anchor head 3, a limiting block 4, a threaded barrel 5, a fixing plate 6, a threaded sleeve 7, a rotating ring 8, a screw rod 9, a rotating seat 10, a telescopic mechanism 11, a first tapered block 12, a limiting block 13, a second tapered block 14, and a spring 15. The anchor rod main body 1 includes an anchor barrel 2 and an anchor head 3. The anchor barrel 2 and the anchor head 3 are fixedly connected to the opposite sides. The other end of the anchor barrel 2 is fixedly embedded with a barrel body 5 on the outer side. A groove 17 for the limiting block 4 is provided on the anchor barrel 2. A fixing plate 6 is slidably sleeved on the anchor barrel 2. An opening for the anchor barrel 2 to penetrate and slidably connect is provided on the fixing plate 6. A plurality of installation through holes are equidistantly provided on the fixing plate 6. The outer side of the fixing plate 6 is rotatably connected to a rotating barrel 7 through a bearing seat. The rotating barrel 7 is threadedly sleeved on the outer side of the barrel body 5. A rotating ring 8 is fixedly sleeved on the outer side of the rotating barrel 7. The inner wall of the anchor barrel 2 is rotatably connected to a screw rod 9 through a bearing seat. One end of the screw rod 9 is fixedly connected to a rotating seat 10. The rotating seat 10 penetrates through the anchor barrel 2, and a through hole for the rotating connection of the rotating seat 10 is provided on the anchor barrel 2.

[0038] A plurality of telescopic mechanisms 11 are equidistantly arranged inside the anchor barrel 2. The telescopic mechanism 11 includes a first tapered block 12, a limiting block 13, a second tapered block 14, and a spring 15. There are multiple first tapered blocks 12, limiting blocks 13, second tapered blocks 14, and springs 15. Limiting blocks 4 are symmetrically connected to the outer sides of the plurality of first tapered blocks 12 respectively. The plurality of limiting blocks 4 are all slidably embedded on the inner wall of the anchor barrel 2. Grooves for the sliding embedding of the limiting blocks 4 are provided on the anchor barrel 2. The plurality of first tapered blocks 12 are all sleeved on the screw rod 9. A threaded through hole for the threaded connection of the screw rod 9 is provided on the first tapered block 12. The outer side of the limiting block 13 is in contact with and slidably connected to the inner wall of the anchor barrel 2. One end of the plurality of limiting blocks 13 vertically penetrates through the anchor barrel 2. Through holes for the connection of the plurality of limiting blocks 13 to penetrate are respectively provided on the anchor barrel 2. The other end of the plurality of limiting blocks 13 is fixedly connected to the outer sides of the plurality of second tapered blocks 14. The outer sides of the plurality of second tapered blocks 14 are in contact with and slidably connected to the outer sides of the plurality of first tapered blocks 12. The plurality of springs 15 are respectively sleeved on the plurality of limiting blocks 13. Both ends of the spring 15 are in contact with and fixedly connected to the inner wall of the anchor barrel 2 and the second tapered block 14 respectively.

[0039] The working principle of the present invention is:

[0040] When the soil anchor for deep foundation pit support is needed, first, the personnel pass the anchor rod body 1 through the foundation pit formwork and insert it into the anchor rod insertion hole pre-drilled on the wall of the deep foundation pit, and then insert the anchor head 3 into the insertion hole. Further, the fixing plate 6 is fixedly connected to the outside of the foundation pit formwork through bolt through holes (a number of bolt through holes are arranged along the length direction of the fixing plate 6 for matching different heights). Further, by using a tool to drive the rotating seat 10 to drive the screw rod 9 to rotate, the multiple first cone blocks 12 in the multiple telescopic mechanisms 11 on the screw rod 9 are driven to move in the anchor barrel 2 by being limited by the limiting block 4, so that the multiple first cone blocks 12 drive the multiple second cone blocks 14 to move. Further, the movement of the multiple second cone blocks 14 drives the multiple limiting insertion blocks 13 to move and extend on the anchor barrel 2 and compress the spring 15, so that the multiple limiting insertion blocks 13 are inserted into the hole wall of the anchor rod insertion hole opened in the foundation pit, so that the anchor rod body 1 is firmly fixed to the anchor rod insertion hole.

[0041] Further, through the cylinder body 5 and the meshing rack, the rotating cylinder makes a lifting movement, thereby driving the fixing plate 6 fixed on the foundation pit formwork to lift, and the rotating ring 8 can make it approach or move away from the fixing plate, and then move to fasten and limit the foundation pit formwork.

[0042] The series of detailed descriptions listed above are only specific descriptions of the feasible implementation manners of the present invention, and they are not used to limit the protection scope of the present invention. Any equivalent implementation manners or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

[0043] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0044] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A soil anchor for the support of a deep foundation pit, comprising an anchor body, characterized in that, The bolt body includes an anchor head and an anchor barrel connected to the anchor head; A fixing plate connected to the outer side of the foundation pit formwork and moving along the width direction of the anchor barrel; A screw rod located inside the anchor barrel, and a number of linkage mechanisms threadedly connected to the screw rod. During the rotation of the screw rod, the linkage mechanisms drive the anchor barrel to move horizontally, so that the limit blocks on the linkage mechanisms extend out of the first through hole of the anchor barrel and are inserted into the bolt insertion holes on the foundation pit; The linkage mechanism includes a first cone block assembled in the vertical direction to form a perforation, and second cone blocks respectively extending along the horizontal direction on both sides of the first cone block; The limit block is located above the second cone block and is vertically arranged with the second cone block; The second cone block fits on the inclined surface of the first cone, and a spring sleeved on the limit block is fixed on the second cone block; A number of limit blocks are arranged on the short side of the first cone block, and a number of sliding grooves are provided on the anchor barrel in the length direction; 2. The soil anchor for the foundation deep foundation pit support according to claim 1, characterized in that, In the width direction of the fixing plate, a vertical opening facing the anchor barrel is provided, and the anchor barrel is inserted into the vertical opening; 3. A soil anchor for deep foundation pit support according to claim 1, characterized in that, A rotating cylinder is connected to the outer side of the fixing plate through a bearing seat, and a rotating ring for starting the rotation of the rotating cylinder to approach or move away from the fixing plate is provided at the bottom of the rotating cylinder; 4. The soil anchor for foundation deep foundation pit support according to claim 3, characterized in that, It further includes a cylinder body embedded on the outer side of the anchor barrel, and a number of tooth rings are arranged at intervals on the outer circumference of the cylinder body; 5. The soil anchor for the foundation deep foundation pit support according to claim 4, characterized in that, A number of racks are arranged on the rotating cylinder in the circumferential direction, and the distance formed between adjacent racks is equal to the distance between adjacent tooth rings; 6. A soil anchor for deep foundation pit support according to claim 1, characterized in that, The end of the screw rod is connected with a rotating seat, the rotating seat penetrates the anchor barrel, and a second through hole for the rotating connection of the rotating seat to penetrate is provided on the anchor barrel;

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