Anti-floating anchor rod structure of super-long basement concrete bottom plate

Abstract

An anti-floating anchor rod structure of a super-long basement concrete bottom plate relates to the technical field of anti-floating anchor rods and comprises an anchor rod head and an expansion anchor rod mechanism. The expansion anchor rod mechanism comprises an expansion anchor rod body, a plurality of groups of traction steel wires and a connecting rod which is rotationally arranged in the middle of the inner side of the expansion anchor rod body and is movably connected with the anchor rod head; the anchor rod head is of a hollow structure; concrete slurry is poured into the hollow column through the first grouting pipe, then the overall weight of the hollow column is increased, the hollow column moves downwards through the weight increase to break through supporting and limiting of the supporting block and falls to the bottom of the anchor rod head, then impact force is generated, and the impact force is transmitted to the position of the connecting rod to drive the rod body of the expansion anchor rod to be unfolded. And a limiting block is moved to the position below a limiting plate, the unfolded expansion anchor rod body is limited, it is guaranteed that the expansion anchor rod body is unfolded, meanwhile, the expansion anchor rod body is prevented from being folded reversely, and the anti-floating strength of the bottom of the anchor rod is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of anti - floating anchor rods, and specifically relates to an anti - floating anchor rod structure for an extra - long basement concrete floor slab. Background Technique

[0002] An anti - floating anchor rod is a reinforcement measure used to stabilize the foundation and structure and prevent it from floating or overturning under the action of buoyancy. It is usually used in areas with high groundwater levels or large groundwater pressures, areas with underground cavities or soft layers in soil or rock, buildings or structures close to water bodies or deep excavation foundations. The anti - floating anchor rod works by anchoring one end in a solid formation or rock layer and connecting the other end to the structure to be reinforced. When buoyancy occurs, the anchor rod will bear tension and transfer the buoyancy to the anchorage area, thus offsetting the buoyancy effect. The anti - floating anchor rod mainly bears tension, and the magnitude of its tension is related to factors such as the groundwater level height, soil properties, anchor rod length and diameter. Anti - floating anchor rods are widely used in the following scenarios: basement floor slabs, underground garages and tunnel projects.

[0003] Existing anti - floating anchor rods usually have an expansion structure at the bottom of the anchor rod. However, when the depth of the anti - floating anchor rod foundation pit is in the range of 5m - 15m, after the anchor rod structure is inserted into the foundation pit, it is very difficult to expand the expansion structure through manual intervention, and it is not convenient to confirm the actual state of the expansion structure. At the same time, after the existing anti - floating anchor rod expands, during high - pressure grouting, due to the buoyancy and pushing effect of the concrete slurry, the expanded anchor rod structure is likely to merge again, thereby reducing the anti - floating strength at the bottom of the anchor rod and failing to meet people's needs. Summary of the Invention

[0004] The invention aims to solve the technical problems existing in the prior art; for this purpose, the invention proposes an anti - floating anchor rod structure for an extra - long basement concrete floor slab.

[0005] An anti - floating anchor rod structure for an extra - long basement concrete floor slab includes: an anchor rod head and an extended anchor rod mechanism movably arranged outside the anchor rod head; wherein, the extended anchor rod mechanism includes a plurality of groups of extended anchor rod bodies rotatably arranged outside the anchor rod head, a plurality of groups of traction wires arranged between adjacent two groups of extended anchor rod bodies, and a connecting rod rotatably arranged in the middle inside the extended anchor rod body and movably connected to the anchor rod head; the anchor rod head is set as a hollow structure, the bottom end of the anchor rod head is in a pointed structure, and the top end of the anchor rod head is in a horizontal plane structure; the length dimensions of the plurality of groups of traction wires decrease successively from top to bottom, and when the extended anchor rod bodies open, the plurality of groups of traction wires on the same horizontal plane cooperate to form a circular structure.

[0006] As a further solution of the present invention: a grouting column mechanism for controlling the expansion of the expandable anchor rod mechanism is provided at the inner top of the anchor rod head; the grouting column mechanism includes a hollow column that fits against the inner wall of the anchor rod head, and grouting can be carried out inside the hollow column, so as to squeeze the expandable anchor rod mechanism under the action of gravity, causing the expandable anchor rod mechanism to expand.

[0007] As a further solution of the present invention: the expandable anchor rod mechanism further includes a plurality of groups of sliding displacement grooves symmetrically arranged on the outer side of the anchor rod head and a plurality of groups of first hinge support seats installed below the sliding displacement grooves and hinged to the bottom of the expandable anchor rod body; the top end of the connecting rod is arranged in the sliding displacement groove, and the sliding displacement groove can enable the connecting rod to move and can contract the connecting rod, so that the expandable anchor rod body fits against the outer wall of the anchor rod head.

[0008] As a further solution of the present invention: the expandable anchor rod mechanism further includes a plurality of groups of second hinge support seats arranged on the outer side of the hollow column and a limiting block arranged at the end of the second hinge support seat away from the hollow column and extending to the outer side of the anchor rod head; wherein, the top end of the connecting rod passes through the sliding displacement groove and extends to the outer side of the hollow column and is hinged to the second hinge support seat, and the cooperation of the limiting block and the second hinge support seat can enable the connecting rod to rotate and can limit the expandable anchor rod body, so that while the expandable anchor rod body is fully expanded, it is prevented from realizing reverse displacement of the expanded expandable anchor rod body.

[0009] As a further solution of the present invention: the expandable anchor rod mechanism further includes a plurality of groups of first receiving grooves arranged at both sides of the bottom of the second hinge support seat near the outer side of the anchor rod head and a limiting plate hinged to the top of the first receiving groove; wherein, a second spring is commonly connected between the limiting plate and the first receiving groove; the bottom of the limiting plate protrudes from the vertical plane of the outer side of the anchor rod head; when the limiting block follows the second hinge support seat and moves downward to the bottom of the limiting plate, the limiting plate limits the top of the limiting block, thereby preventing the limiting block from reverse displacement.

[0010] As a further solution of the present invention: the grouting column mechanism further includes material discharging through holes uniformly arranged at the bottom of the hollow column and a plurality of groups of supporting ring plates arranged at the edge positions of the material discharging through holes; wherein, a baffle plate supporting on the top of the supporting ring plate is arranged inside the material discharging through hole, and one end of the baffle plate is hinged to the bottom of the hollow column.

[0011] As a further solution of the present invention: a discharge through-hole communicating with the inside of the anchor head is provided at the bottom outside the anchor head; a support top frame is provided at a position near the top of the discharge through-hole inside the anchor head; the top of the support top frame is provided with a support wedge block structure adapted to the bottom of the baffle, and the support top frame can push the baffle to deflect upward; when the hollow column moves downward to the top end of the support top frame, an upward extrusion force is generated on the baffle through the wedge block structure at the top end of the support top frame, so that the baffle deflects upward and opens the passage between the blanking through-hole and the discharge through-hole.

[0012] As a further solution of the present invention: a grouting mechanism communicating with the inside of the hollow column is provided in the middle of the top of the anchor head; a first feed hole and a second feed hole are provided at the top of the hollow column; the grouting mechanism includes a first grouting pipe and a second grouting pipe for grouting; wherein, the bottom ends of the first grouting pipe and the second grouting pipe both penetrate through the top of the anchor head and communicate with the inside of the hollow column; the bottom end of the first grouting pipe is slidably connected to the inner side of the first feed hole, and the bottom end of the first grouting pipe can be separated from the first feed hole, the bottom end of the second grouting pipe is fixedly connected to the inner side of the second feed hole; a downward-sliding marking scale line is provided at the top end of the second grouting pipe; the length of the second grouting pipe is greater than the length of the first grouting pipe, and the top ends of the first grouting pipe and the second grouting pipe are both exposed above the ground.

[0013] As a further solution of the present invention: a support mechanism for supporting and limiting the hollow column is provided at the position of the inner wall of the anchor head at the bottom of the hollow column; wherein, the support mechanism includes second storage grooves uniformly provided at the position of the inner wall of the anchor head, a first spring provided at the inner bottom of the second storage groove, and a support block provided at the top end of the first spring; the second storage groove is an inclined downward groove structure; the support block is inclined and arranged in the second storage groove; the top of the second storage groove communicates with the inside of the anchor head; the top of the support block protrudes from the vertical plane of the inner wall of the anchor head and can support the bottom end of the hollow column.

[0014] As a further solution of the present invention: an anchor rod frame mechanism is provided at the edge position of the top of the anchor head, and the top end of the anchor rod frame mechanism is exposed above the ground; wherein, the anchor rod frame mechanism includes a steel reinforcement cage frame; the steel reinforcement cage frame is welded by several groups of steel bars, and a support anchor plate is commonly provided between the inner sides of the steel bars; two central through-holes are provided in the middle of the support anchor plate; receiving grooves adapted to the steel bars are uniformly provided on the outside of the support anchor plate; the first grouting pipe and the second grouting pipe respectively penetrate through the upper and lower ends of the support anchor plate from the inside of the central through-holes.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) Through the provided extended anchor rod mechanism, grouting column mechanism, grouting mechanism, support mechanism, and anchor rod frame mechanism, concrete slurry is poured into the interior of the hollow column through the first grouting pipe. As a result, the overall weight of the hollow column increases. Due to the increased weight, the hollow column displaces downward, breaking through the support and limit of the support block and falling towards the bottom of the anchor head, thereby generating an impact force. This impact force is transmitted to the position of the connecting rod, driving the expansion of the extended anchor rod body and causing the limit block to displace below the limit plate, thus limiting the expanded extended anchor rod body, ensuring the expansion of the extended anchor rod body while preventing the reverse folding of the extended anchor rod body and enhancing the anti-floating strength at the bottom of the anchor rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the original state structure of the present invention.

[0018] Figure 2 It is a three-dimensional schematic diagram of the deployed state structure of the present invention.

[0019] Figure 3 It is a partial structural diagram of the first grouting pipe and the second grouting pipe in the present invention.

[0020] Figure 4 It is an enlarged view of the structure at the support anchor plate in the present invention.

[0021] Figure 5 It is an enlarged view of the structure of the original state connection components at the cleaning anchor head in the present invention.

[0022] Figure 6 It is an enlarged cross-sectional view of the structure of the original state connection components at the anchor head in the present invention.

[0023] Figure 7 It is an enlarged view of the structure at the anchor head in the present invention.

[0024] Figure 8 It is an enlarged view of the structure at position A in the present invention.

[0025] Figure 9 It is an enlarged view of the original state connection structure at the hollow column in the present invention.

[0026] Figure 10 It is an enlarged cross-sectional view of the original state connection structure at the hollow column in the present invention.

[0027] Figure 11 It is an enlarged view of the structure of the deployed state connection components at the anchor head in the present invention.

[0028] Figure 12 It is an enlarged cross-sectional view of the structure of the deployed state connection components at the anchor head in the present invention.

[0029] Figure 13This is an enlarged cross-sectional view of the internal component positions at the anchor bolt head in the expanded state in the present invention.

[0030] Figure 14 This is an enlarged view of the structure at position B in the present invention.

[0031] Figure 15 This is a middle enlarged view of the structure at the limiting plate in the present invention.

[0032] Figure 16 This is an enlarged cross-sectional view of the internal structure at the hollow column in the present invention.

[0033] In the figure: 10, anchor bolt head; 11, extended anchor bolt rod body; 12, discharge through hole; 13, traction steel wire; 14, steel reinforcement cage; 15, support anchor plate; 151, central through hole; 152, receiving groove; 16, first grouting pipe; 17, second grouting pipe; 18, hollow column; 19, first hinge support seat; 20, support top frame; 21, sliding displacement groove; 22, first receiving groove; 23, limiting plate; 24, support block; 25, first spring; 26, second receiving groove; 27, limiting block; 28, second hinge support seat; 29, connecting rod; 30, baffle; 31, second spring; 32, blanking through hole; 33, support ring plate; 34, first feed hole; 35, second feed hole. Detailed implementation manners

[0034] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1

[0036] Please refer to Figure 1 - Figure 16 , this application provides an anti-floating anchor bolt structure for a super-long basement concrete floor slab, including: an anchor bolt head 10 and an extended anchor bolt mechanism movably arranged outside the anchor bolt head 10; wherein, the extended anchor bolt mechanism includes a plurality of groups of extended anchor bolt rod bodies 11 rotatably arranged outside the anchor bolt head 10, a plurality of groups of traction steel wires 13 arranged between adjacent two groups of extended anchor bolt rod bodies 11, and a connecting rod 29 rotatably arranged in the middle inside the extended anchor bolt rod body 11 and movably connected with the anchor bolt head 10; the anchor bolt head 10 is arranged as a hollow structure, the bottom end of the anchor bolt head 10 is in a pointed structure, and the top end of the anchor bolt head 10 is in a horizontal plane structure; the length dimensions of the plurality of groups of traction steel wires 13 decrease successively from top to bottom, and when the extended anchor bolt rod bodies 11 are opened, the plurality of groups of traction steel wires 13 on the same horizontal plane cooperate to form a circular structure.

[0037] As shown in the specification appendixFigure 6 As shown in the figure, a grouting column mechanism for controlling the expansion of the expandable anchor rod mechanism is provided at the inner top of the anchor rod head 10; the grouting column mechanism includes a hollow column 18 that fits against the inner wall of the anchor rod head 10, and grouting can be carried out inside the hollow column 18, so as to squeeze the expandable anchor rod mechanism under the action of gravity, causing the expandable anchor rod mechanism to expand.

[0038] As shown in the attached drawings of the specification Figure 7 As shown in the figure, the expandable anchor rod mechanism in the present invention further includes a plurality of groups of sliding displacement grooves 21 symmetrically arranged on the outer side of the anchor rod head 10 and a plurality of groups of first hinge support seats 19 installed below the sliding displacement grooves 21 and hinged to the bottom of the expandable anchor rod body 11; the top end of the connecting rod 29 is arranged in the sliding displacement groove 21, and the sliding displacement groove 21 can enable the connecting rod 29 to move and can contract the connecting rod 29, so that the expandable anchor rod body 11 fits against the outer wall of the anchor rod head 10.

[0039] As shown in the attached drawings of the specification Figure 9 As shown in the figure, the expandable anchor rod mechanism in the present invention further includes a plurality of groups of second hinge support seats 28 arranged on the outer side of the hollow column 18 and a limit block 27 arranged at one end of the second hinge support seat 28 away from the hollow column 18 and extending to the outer side of the anchor rod head 10; wherein, the top end of the connecting rod 29 passes through the sliding displacement groove 21 and extends to the outer side of the hollow column 18 and is hinged to the second hinge support seat 28, and the cooperation between the limit block 27 and the second hinge support seat 28 can enable the connecting rod 29 to rotate and can limit the expandable anchor rod body 11, so that while the expandable anchor rod body 11 is fully expanded, it is prevented from causing reverse displacement of the expanded expandable anchor rod body 11.

[0040] As shown in the attached drawings of the specification Figure 12 、 14 As shown in FIGS. 15, the expandable anchor rod mechanism in the present invention further includes a plurality of groups of first receiving grooves 22 arranged at both sides of the bottom of the second hinge support seat 28 near the outer side of the anchor rod head 10 and a limit plate 23 hinged to the top of the first receiving groove 22; wherein, a second spring 31 is jointly connected between the limit plate 23 and the first receiving groove 22; the bottom of the limit plate 23 protrudes from the vertical plane of the outer side of the anchor rod head 10; when the limit block 27 follows the second hinge support seat 28 and moves downward to the bottom of the limit plate 23, the limit plate 23 limits the top of the limit block 27, thereby preventing the reverse displacement of the limit block 27.

[0041] As shown in the attached drawings of the specification Figure 16 As shown in the figure, the grouting column mechanism in the present invention further includes a plurality of material discharge through holes 32 uniformly arranged at the bottom of the hollow column 18 and a plurality of groups of support ring plates 33 arranged at the edge positions of the material discharge through holes 32; wherein, a baffle 30 supporting on the top of the support ring plate 33 is arranged inside the material discharge through hole 32, and one end of the baffle 30 is hinged to the bottom of the hollow column 18.

[0042] As shown in the attached drawings of the specification Figure 13 As shown, at the bottom outside the anchor head 10 of the present invention, there is a discharge through hole 12 that communicates with the inside of the anchor head 10; at a position near the top of the discharge through hole 12 inside the anchor head 10, there is a support top frame 20; the top of the support top frame 20 is set as a support wedge structure that matches the bottom of the baffle 30, and the support top frame 20 can push the baffle 30 to deflect upward; when the hollow column 18 moves downward to the top end of the support top frame 20, an upward extrusion force is generated on the baffle 30 through the wedge structure at the top end of the support top frame 20, causing the baffle 30 to deflect upward and opening the passage between the blanking through hole 32 and the discharge through hole 12.

[0043] As shown in the attached drawings of the specification Figure 16 As shown, in the middle of the top of the anchor head 10 of the present invention, there is a grouting mechanism that communicates with the inside of the hollow column 18; at the top of the hollow column 18, there are a first feed hole 34 and a second feed hole 35; the grouting mechanism includes a first grouting pipe 16 and a second grouting pipe 17 for grouting; wherein, the bottom ends of the first grouting pipe 16 and the second grouting pipe 17 both penetrate the top of the anchor head 10 and communicate with the inside of the hollow column 18; the bottom end of the first grouting pipe 16 is slidably connected to the inside of the first feed hole 34, and the bottom end of the first grouting pipe 16 can be separated from the first feed hole 34, the bottom end of the second grouting pipe 17 is fixedly connected to the inside of the second feed hole 35; a downward sliding mark scale line is provided at the top end of the second grouting pipe 17; the length of the second grouting pipe 17 is greater than the length of the first grouting pipe 16, and the top ends of the first grouting pipe 16 and the second grouting pipe 17 are both exposed above the ground.

[0044] As shown in the attached drawings of the specification Figure 7 and 8 As shown, at the position of the inner wall of the anchor head 10 at the bottom of the hollow column 18, there is a support mechanism for supporting and limiting the hollow column 18; wherein, the support mechanism includes second receiving grooves 26 uniformly arranged at the position of the inner wall of the anchor head 10, a first spring 25 arranged at the bottom inside the second receiving groove 26, and a support block 24 arranged at the top of the first spring 25; the second receiving groove 26 is an inclined downward groove structure; the support block 24 is inclined and arranged in the second receiving groove 26; the top of the second receiving groove 26 communicates with the inside of the anchor head 10; the top of the support block 24 protrudes from the vertical plane of the inner wall of the anchor head 10 and can support the bottom end of the hollow column 18.

[0045] As shown in the attached drawings of the specification Figures 1-4As shown in the figure, at the edge position of the top of the anchor head 10 in the present invention, an anchor rod frame mechanism is provided, and the top end of the anchor rod frame mechanism is exposed above the ground; wherein, the anchor rod frame mechanism includes a steel bar cage frame 14; the steel bar cage frame 14 is formed by welding several groups of steel bars, and a support anchor plate 15 is jointly arranged between the inner sides of the steel bars; two central through holes 151 are arranged in the middle of the support anchor plate 15; receiving grooves 152 adapted to the steel bars are uniformly arranged on the outer side of the support anchor plate 15; the first grouting pipe 16 and the second grouting pipe 17 respectively penetrate through the upper and lower ends of the support anchor plate 15 from the inside of the central through hole 151.

[0046] In summary, when the anchor rod structure is in use, by placing the anchor head 10 downward into the opened foundation pit, the bottom of the anchor head 10 reaches the bottom of the foundation pit, and at this time, the top ends of the first grouting pipe 16, the second grouting pipe 17, and the steel bar cage frame 14 are all exposed above the ground at the top of the foundation pit;

[0047] When grouting the anti - floating anchor rod, first grout the inside of the hollow column 18 through the first grouting pipe 16, so that the overall weight of the hollow column 18 continuously increases. As the weight of the hollow column 18 itself increases, it continuously displaces downward, squeezing the support block 24 to contract into the inside of the second receiving groove 26 and compressing the first spring 25;

[0048] At the same time, as the hollow column 18 displaces downward, it drives the second articulated support seat 28 to displace downward. Through the second articulated support seat 28, the connecting rod 29 is driven to displace and push the extended anchor rod body 11 to expand outward from the anchor head 10;

[0049] When the concrete slurry inside the hollow column 18 continuously increases, when the bottom of the hollow column 18 squeezes the support block 24 to completely contract into the inside of the second receiving groove 26, the hollow column 18 loses support. Under the action of the gravity of the hollow column 18, the hollow column 18 instantaneously displaces downward;

[0050] Through the instantaneous downward displacement of the hollow column 18, the second articulated support seat 28 is driven to push one end of the connecting rod 29, and the extended anchor rod body 11 quickly unfolds. At the same time, the second articulated support seat 28 drives the limiting block 27 to displace downward. Through the instantaneous downward impact force of the hollow column 18, the limiting block 27 is driven to squeeze the limiting plate 23 to compress the second spring 31 and contract into the inside of the first receiving groove 22;

[0051] As the limiting block 27 displaces to the bottom of the limiting plate 23, under the action of the rebounding force of the second spring 31, the limiting plate 23 resets, and the top of the limiting block 27 is limited by the limiting plate 23, thereby preventing the reverse displacement of the limiting block 27. Through the limitation of the limiting block 27, the unfolded extended anchor rod body 11 also cannot reverse - displace, making the extended anchor rod body 11 fully unfold;

[0052] Through the downward displacement of the hollow column 18, the second grouting pipe 17 is driven to follow the displacement. The downward-sliding marked scale line on the outer side of the top of the second grouting pipe 17 can intuitively show the unfolding condition of the extended anchor rod body 11 under the foundation pit, so as to judge whether the extended anchor rod body 11 is fully unfolded;

[0053] As the hollow column 18 is displaced downward to the position of the support top frame 20, at this time, the bottom of the first grouting pipe 16 has been separated from the hollow column 18. The baffle 30 at the bottom of the hollow column 18 is pushed and supported by the support top frame 20, and then deflects upward to open the passage between the blanking through hole 32 and the discharge through hole 12. The concrete slurry inside the hollow column 18 flows into the foundation pit through the discharge through hole 12. At the same time, the concrete slurry conveyed by the first grouting pipe 16 into the inside of the anchor head 10 enters the inside of the hollow column 18 through the first feed hole 34, so as to ensure that the bottom of the hollow column 18 is completely filled;

[0054] As the first grouting pipe 16 continuously conveys the concrete slurry, the inside of the foundation pit is filled with the concrete slurry, thus realizing the primary grouting of the anti-floating anchor. When the concrete slurry condenses to a predetermined state, secondary grouting is carried out through the second grouting pipe 17. After the second grouting pipe 17 completes the secondary grouting, the foundation pit after grouting is maintained, so that the anti-floating anchor forms a stable concrete base structure.

[0055] The above embodiments are only used to illustrate the technical method of the present invention and not to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. An anti-floating anchor rod structure for the concrete floor slab of an extra-long basement, characterized in that Comprising: An anchor head (10) and an extended anchor mechanism movably arranged outside the anchor head (10); Wherein, the extended anchor mechanism includes several groups of extended anchor rod bodies (11) rotatably arranged outside the anchor head (10), several groups of traction wires (13) arranged between adjacent two groups of extended anchor rod bodies (11), and a connecting rod (29) rotatably arranged in the middle inside the extended anchor rod body (11) and movably connected to the anchor head (10); The anchor head (10) is arranged as a hollow structure; The length dimensions of several groups of the traction wires (13) decrease successively from top to bottom.

2. The anti-floating anchor rod structure for the concrete floor slab of an extra-long basement according to claim 1, characterized in that, At the top inside the anchor head (10), there is a grouting column mechanism for controlling the extension of the extended anchor mechanism; The grouting column mechanism includes a hollow column (18) that fits against the inner wall of the anchor head (10).

3. The anti-floating anchor rod structure for the concrete floor slab of an extra-long basement according to claim 2, characterized in that, The extended anchor mechanism further includes several groups of sliding displacement grooves (21) symmetrically arranged outside the anchor head (10) and several groups of first hinge support seats (19) installed below the sliding displacement grooves (21) and hinged to the bottom of the extended anchor rod body (11); The top end of the connecting rod (29) is arranged in the sliding displacement groove (21).

4. The anti-floating anchor rod structure for the concrete floor slab of an extra-long basement according to claim 3, characterized in that, The extended anchor mechanism further includes several groups of second hinge support seats (28) arranged outside the hollow column (18) and a limiting block (27) arranged at one end of the second hinge support seat (28) away from the hollow column (18) and extending outside the anchor head (10); Wherein, the top end of the connecting rod (29) passes through the sliding displacement groove (21) and extends outside the hollow column (18) and is hinged to the second hinge support seat (28).

5. The anti-floating anchor rod structure for the concrete floor slab of an extra-long basement according to claim 4, characterized in that, The extended anchor mechanism further includes several groups of first storage grooves (22) arranged at both sides near the bottom of the second hinge support seat (28) outside the anchor head (10) and a limiting plate (23) hinged to the top of the first storage groove (22); Wherein, a second spring (31) is jointly connected between the limiting plate (23) and the first storage groove (22); The bottom of the limiting plate (23) protrudes from the vertical plane outside the anchor head (10); When the limiting block (27) moves downward with the second hinge support seat (28) to the bottom of the limiting plate (23), the limiting plate (23) limits the top of the limiting block (27).

6. The anti-floating anchor rod structure for the concrete floor slab of an extra-long basement according to claim 5, characterized in that, The grouting column mechanism further includes material discharging through holes (32) uniformly arranged at the bottom of the hollow column (18) and several groups of support ring plates (33) arranged at the edge positions of the material discharging through holes (32); Wherein, a baffle plate (30) supporting on the top of the support ring plate (33) is arranged inside the material discharging through hole (32), and one end of the baffle plate (30) is hinged to the bottom of the hollow column (18).

7. A kind of anti-floating anchor rod structure for the concrete floor slab of an extra-long basement according to claim 6, characterized in that, At the bottom outside the anchor head (10), there is a material discharging through hole (12) communicating with the inside of the anchor head (10); At the position near the top of the material discharging through hole (12) inside the anchor head (10), there is a support top frame (20); The top of the support top frame (20) is arranged as a support wedge block structure adapted to the bottom of the baffle plate (30); When the hollow column (18) is displaced downward to the top of the support top frame (20), an upward extrusion force is generated on the baffle (30) through the wedge structure at the top of the support top frame (20), causing the baffle (30) to deflect upward and opening the passage between the blanking through hole (32) and the discharge through hole (12).

8. The anti-floating anchor rod structure for the concrete floor slab of an extra-long basement according to claim 2, characterized in that, In the middle of the top of the anchor head (10), a grouting mechanism is provided that communicates with the inside of the hollow column (18); At the top of the hollow column (18), a first feed hole (34) and a second feed hole (35) are provided; The grouting mechanism includes a first grouting pipe (16) and a second grouting pipe (17) for grouting; Among them, the bottom ends of the first grouting pipe (16) and the second grouting pipe (17) both penetrate through the top of the anchor head (10) and communicate with the inside of the hollow column (18); The bottom end of the first grouting pipe (16) is slidably connected to the inner side of the first feed hole (34), and the bottom end of the second grouting pipe (17) is fixedly connected to the inner side of the second feed hole (35); At the top end of the second grouting pipe (17), a downward sliding marking scale line is provided; The length of the second grouting pipe (17) is greater than the length of the first grouting pipe (16), and the top ends of the first grouting pipe (16) and the second grouting pipe (17) are both exposed above the ground.

9. The anti-floating anchor rod structure for the concrete floor slab of an extra-long basement according to claim 2, characterized in that, At the position of the inner wall of the anchor head (10) at the bottom of the hollow column (18), a support mechanism is provided to support and limit the hollow column (18); Among them, the support mechanism includes second storage grooves (26) uniformly arranged at the position of the inner wall of the anchor head (10), a first spring (25) provided at the inner bottom of the second storage groove (26), and a support block (24) provided at the top of the first spring (25); The support block (24) is inclined and arranged in the second storage groove (26); The second storage groove (26) is a groove structure inclined downward; The top of the second storage groove (26) communicates with the inside of the anchor head (10); The top of the support block (24) protrudes from the vertical plane of the inner wall of the anchor head (10) and can support the bottom end of the hollow column (18).

10. A kind of anti-floating anchor rod structure for the concrete floor slab of an extra-long basement according to claim 2, characterized in that, At the edge position of the top of the anchor head (10), an anchor frame mechanism is provided and the top end of the anchor frame mechanism is exposed above the ground; Among them, the anchor frame mechanism includes a steel reinforcement cage frame (14); The steel reinforcement cage frame (14) is welded by several groups of steel bars, and a support anchor plate (15) is jointly arranged between the inner sides of the steel bars; Two central through holes (151) are provided in the middle of the support anchor plate (15); Receiving grooves (152) adapted to the steel bars are uniformly arranged on the outside of the support anchor plate (15); The first grouting pipe (16) and the second grouting pipe (17) respectively penetrate through the upper and lower ends of the support anchor plate (15) from the inside of the central through hole (151).

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