CN214089851U - Expanded pressure type anchor disc and anchoring assembly - Google Patents

Abstract

The application discloses an expanded pressure type anchor disc, which comprises a base and a plurality of movable parts distributed at intervals around the center of the base; the base comprises a first end face and a second end face, and at least one through hole penetrating through the first end face and the second end face is formed in the base; the movable part is respectively connected with the base in a rotating way, so that the movable part can be unfolded or folded relative to the center of the base, wherein the folding direction is relative to the first end surface. The application also discloses an anchor assembly utilizing the anchor disc. The anchor disc structure of this application helps reinforcing bearing capacity, improves anti effect of floating, simplifies the slip casting flow, practices thrift the anti construction cost that floats of anchor.

Description

Expanded pressure type anchor disc and anchoring assembly

Technical Field

The utility model relates to a building field of fixing, concretely relates to expansion pressure type anchor disc and anchor subassembly.

Background

With the development of the building industry, the requirements for anchoring are increasing in the building fields of high-rise buildings, rail transit, bridge and tunnel engineering, urban underground transportation hubs, ports and wharfs, reservoir high dams, side slope engineering, mine construction and the like. The development and use of underground engineering need to consider the influence of groundwater buoyancy, so the requirement for anchoring a building not only needs certain compressive resistance, but also needs corresponding uplift resistance.

In the conventional equal-diameter pressure type anchor rod, a bearing plate with a fixed shape is arranged at the bottom of the equal-diameter anchor rod, and the tension borne by the anchor rod is converted into the pressure borne by the bearing plate. The equal-diameter pressure type anchor rod is matched with the anchor holes with equal apertures for construction, the anchor rod cannot be used between a small aperture and a large bearing capacity, and the bearing area of the bearing plate is limited when the anchor hole with a smaller aperture is adopted, so that the bearing capacity is low; in addition, there is a problem that a prestress needs to be applied.

The prior art also discloses a bag type expanded anchor rod, wherein the supporting body of the anchor rod is an expandable bag, the upper part of the anchor rod is small in aperture, the lower part of the anchor rod is large in aperture, the bag expands at the bottom of a hole after the anchor rod is grouted into the hole, and secondary grouting is carried out outside the bag to increase the pulling resistance of the anchor rod. However, the anchor rod has the problems that the expanded head is a flexible bag, and the bearing capacity is weak; the grouting needs to be divided into secondary grouting outside the capsule inside the capsule, the process is complicated, and after the expansion head is formed, the capsule outside the capsule is divided into two solidified slurry blocks by the capsule, so that the whole stress cannot be applied, and the anti-floating effect is not ideal.

SUMMERY OF THE UTILITY MODEL

The technical problem is as follows: the utility model provides a technical problem lie in how on the basis of simplifying the anchor structure, the bearing capacity of reinforcing stock improves anti floating performance.

The technical scheme is as follows: the application provides an expanded pressure type anchor disc on one hand, and the anchor disc comprises a base and a plurality of movable parts which are distributed around the center of the base at intervals; the base comprises a first end face and a second end face, and at least one through hole penetrating through the first end face and the second end face is formed in the base; the movable part is respectively connected with the base in a rotating way, so that the movable part can be unfolded or folded relative to the center of the base, wherein the folding direction is relative to the first end surface. The movable part rotates to adjust the anchor disc to be in an unfolding state or a folding state.

Further, the base includes spacing base and connection base, spacing base with connect the range upon range of fixed connection of base, connect the base and include at least one deck connection pad, range upon range of fixed connection between the connection pad. The limiting base can limit the rotation angle of the movable part, so that the movable part is folded from the unfolding state to the first end face and is prevented from rotating to one side of the second end face in the unfolding state.

Furthermore, the connecting base comprises a first connecting disc and a second connecting disc, the first connecting disc, the second connecting disc and the limiting base are sequentially and fixedly connected in a stacking mode, the first connecting disc and the second connecting disc are cylinders, and the outer diameter of the first connecting disc is smaller than that of the second connecting disc; at least one annular cavity surrounding the through hole is arranged in the first connecting disc and the second connecting disc along the circumferential direction.

Furthermore, a first annular cavity and a second annular cavity which are coaxial are arranged in the first connecting disc, an annular rib for separating the first annular cavity from the second annular cavity is arranged between the first annular cavity and the second annular cavity, and the outer diameter of the first annular cavity is smaller than that of the second annular cavity; a plurality of first notches in the radial direction are arranged on the first connecting disc at equal intervals in the circumferential direction, and second notches in the radial direction are formed between every two adjacent first notches; the first notch is formed between the annular rib and the outer wall of the through hole from the edge of the first connecting disc, and first bayonets at equal intervals are formed on the annular rib; the second notch is arranged between the outer cavity surface of the second annular cavity and the annular rib from the edge of the first connecting disc, and second bayonets with equal intervals are formed on the outer cavity surface of the second annular cavity.

Further, the second land is identical in structure to the first land.

Furthermore, a third annular cavity is arranged in the second connecting disc, a plurality of third notches are arranged on the second connecting disc at equal intervals in the circumferential direction, the third notches are arranged between the outer cavity surface of the third annular cavity and the outer wall of the through hole from the edge of the second connecting disc, and third bayonets at equal intervals are formed on the outer cavity surface of the third through hole.

Further, when the first connecting disc and the second connecting disc are fixedly connected in a stacked mode, the notches in the first connecting disc and the notches in the second connecting disc are staggered in the circumferential direction. The notches are arranged in a staggered mode in the circumferential direction, so that on one hand, the second connecting disc below the second connecting disc can limit the movable part connected to the first connecting disc; on the other hand, the movable portion connected to the first land and the movable portion connected to the second land may be partially overlapped in the plan view direction after being expanded, and the entire anchor pad may have no space between the movable portions in the plan view direction.

Furthermore, the movable part comprises a connecting rod, and a sheet-shaped free part and a clamping part which are arranged at two ends of the connecting rod, and the connecting rod can be accommodated in the first notch, the second notch and the third notch; the joint portion is including setting up first arch and the second arch in the connecting rod both sides, and joint portion can cooperate with first bayonet socket, second bayonet socket, third bayonet socket, makes the movable part rotate with first connection pad or second connection pad and is connected.

Furthermore, the connecting rod of the movable part is connected with two torsion springs which are respectively positioned at the far connecting rod sides of the first bulge and the second bulge; the first end of the torsion spring is fixed on the end face of the clamping portion, and the second end of the torsion spring is fixed on the outer cavity face of the annular cavity.

Furthermore, the end face of the connecting rod, which is far away from the free part, and the outer cavity surface of the annular cavity are respectively provided with small holes matched with the tail ends of the torsion springs, so that the tail ends of the torsion springs are connected with the connecting end and the outer cavity surface of the annular cavity through the small insertion holes.

Furthermore, the connecting rod, the clamping part and the free part of the movable part are integrally formed.

Furthermore, the limiting base is a cylinder, and the outer diameter of the limiting base is not smaller than that of the connecting base so as to limit the movable part connected to the connecting base.

Furthermore, the bases are integrally formed, so that the connection strength between the bases is increased, and the bearing capacity is improved.

The application also provides an anchoring assembly manufactured by using the anchor disc, wherein the anchoring assembly comprises the anchor disc, a restraining ring and an anchor rod; the restraining ring is sleeved outside the movable part to fix the movable part in a furled state; the anchor rod passes through the through hole and is fixedly connected with the second end surface of the anchor disc.

Furthermore, the restraint ring comprises a flexible metal belt and a pin shaft, wherein circular ring holes are respectively formed in two tail ends of the flexible metal belt, and the pin shaft penetrates through the two circular ring holes to enable the tail ends of the metal belt to be connected into a ring.

Has the advantages that: compared with the prior art, the anchor disc and the anchoring assembly form an integral expanded head in the expanded hole, so that the bearing capacity of the anchor rod is enhanced, and the anti-floating effect is improved; on the other hand, the anchor disc and the anchoring assembly are simple in structure and save cost. In addition, when the anchor disc and the anchoring assembly are used for carrying out down-hole grouting, only one grouting is needed to be completed, secondary grouting is not needed, and the operation steps are simple.

Drawings

FIG. 1 is a perspective view of the present application with the anchor disk deployed;

FIG. 2 is a top plan view of the present application with the anchor pads deployed;

FIG. 3 is a bottom view of the present application with the anchor pads deployed;

FIG. 4 is a schematic view of the anchor disk base structure of the present application;

FIG. 5 is a cross-sectional view of the internal structure of the first coupling plate of the anchor plate of the present application;

FIG. 6 is a cross-sectional view of the internal structure of an alternative second attachment plate for the anchor pan of the present application;

FIG. 7 is a perspective view of a first splice tray internal connection structure of the present application;

FIG. 8 is an enlarged view of the internal connection structure of the first splice tray of the present application;

FIG. 9 is a schematic view of the anchor disk active portion configuration of the present application;

FIG. 10 is a schematic view of the anchor assembly of the present application in a collapsed condition;

FIG. 11 is a schematic structural view of a confinement ring of the anchor assembly of the present application;

FIG. 12 is a schematic view of the anchor assembly of the present application in a deployed state.

Detailed Description

The invention will be further described with reference to the following figures and examples:

the application provides an expansion pressure type anchor disc in one aspect, as shown in fig. 1-3, the anchor disc comprises a base 1 and 16 movable parts 2 distributed around the center of the base at intervals.

As shown in fig. 4, the base 1 includes a limiting base 13 and a connecting base, and the connecting base includes two layers of connecting discs, namely a first connecting disc 11 and a second connecting disc 12; the first connecting disc 11 and the second connecting disc 12 are cylindrical bodies, and the outer diameter of the first connecting disc 11 is smaller than that of the second connecting disc 12. The first connecting disc 11, the second connecting disc 12 and the limiting base 13 are sequentially stacked and fixedly connected; preferably, the first connecting disc 11, the second connecting disc 12 and the limiting base 13 are integrally formed.

The upper surface of the first connecting disc 11 is a first end surface of the base 1, and the lower surface of the limiting base 13 is a second end surface of the base 1. The base 1 is provided with at least one through hole 14 penetrating through the first end face and the second end face; namely, the through hole 14 penetrates through the first connecting disc 11, the second connecting disc 12 and the limit base 13. The through hole 14 is arranged in the middle of the base, and the through hole 14 can be used for penetrating an anchor rod and can also penetrate a drill rod in the drilling process. The number of the through holes 14 can be set according to the construction requirement, and in the embodiment, the number of the through holes is one, and the through holes are arranged in the central position of the base 1.

The movable part 2 is respectively connected with the base 1 in a rotating way, so that the movable part 2 can be unfolded or folded relative to the center of the base, wherein the folding direction is relative to the first end surface. Preferably, in the unfolding state, the movable part rotates to a position parallel to the bottom surface of the base, so that the anchor disc is in the unfolding state, namely the state shown in fig. 1-3; in the closed state, the movable portion 2 is closed toward the first end surface of the base, i.e., in a direction approaching the upper surface of the first connecting plate 11, i.e., in the closed state shown in fig. 11.

As shown in fig. 9, there are two kinds of movable portions, namely, a movable portion 21 and a movable portion 22, the movable portion 21 and the movable portion 22 have the same structure, the movable portion 21 includes a connecting rod 212, and a sheet-shaped free portion 211 and a clamping portion which are disposed at both ends of the connecting rod 212, and the connecting rod length of the movable portion 21 is greater than that of the movable portion 22. The clamping portion includes a first protrusion 213 and a second protrusion 214 provided at both sides of the connecting rod. Preferably, the free portion, the connecting rod, and the clamping portion of the movable portion are integrally formed.

As shown in fig. 5, a first annular cavity 113 and a second annular cavity 114 are coaxially arranged in the first connecting disc 11, an annular rib 115 is arranged between the first annular cavity 113 and the second annular cavity 114 to separate the first annular cavity 113 and the second annular cavity 114, and the outer diameter of the first annular cavity 113 is smaller than that of the second annular cavity 114. As shown in fig. 4, the first connecting disk 11 is provided with four first notches 111 in the radial direction at equal intervals in the circumferential direction, and a second notch 112 in the radial direction is opened between adjacent first notches.

The lengths of the first notch 111 and the second notch 112 are different, the first notch 116 is formed between the annular rib 115 and the outer wall of the through hole 14 from the edge of the first connecting disc 11, and first bayonets 116 distributed at equal intervals are formed on the annular rib 115; the second notch 112 is opened from the edge of the first connection disc 11 to a position between the outer cavity surface of the second annular cavity and the annular rib 115, and second bayonets 117 distributed at equal intervals are formed on the outer cavity surface of the second annular cavity. The clamping part of the movable part 21 is matched with the first clamping opening 116, and the movable part 21 is clamped in the first cavity, so that the movable part 21 can rotate axially by taking the clamping part as an axial direction; the clamping portion of the movable portion 22 is matched with the second bayonet 112, and the movable portion 22 is clamped into the second cavity, so that the movable portion 22 can rotate in the axial direction by using the clamping portion. The upward rotation of the movable portion 21 and the movable portion 22 is a folding process, and the downward rotation of the movable portion 21 and the movable portion 22 is gradually parallel to the bottom surface of the base, which is an unfolding process. Because the distance from the first bayonet 116 to the edge of the first connecting disc is longer than the distance from the second bayonet 117 to the edge of the first connecting disc, that is, the movable part 21 is closer to the through hole 14, the movable part is folded in the inner layer of the movable part 22, that is, in the folded state, the movable part connected to the first connecting disc is folded into two layers, the inner layer is four movable parts 21, and the outer layer is four movable parts 22.

In an embodiment of the present application, the structure of the first land 11 is the same as that of the second land 12. The outer diameter of the second connecting disc is larger than that of the first connecting disc, and correspondingly, compared with the first connecting disc, the first bayonet and the second bayonet which are arranged on the second connecting disc are farther away from the through hole 14. Therefore, the movable part connected with the second connecting disc can be collected on the outer layer of the movable part connected with the first connecting disc. In this way, the folded anchor disc has four layers of active portions, 4 for each layer.

In another embodiment of the present application, the second land has a structure different from the first land structure 11. Alternative to the second connecting disc as shown in fig. 6, the second connecting disc 12a is provided with only one annular cavity inside, namely a third annular cavity 121. The second land 12 is provided with third notches 122 in the radial direction at equal intervals in the circumferential direction. The number of third notches is the sum of the number of first and second notches on the first interface disc, which in this embodiment is eight. The third notch 122 is opened from the edge of the second connecting disc 12 to a position between the outer cavity surface of the third annular cavity and the outer wall of the through hole, and eight third notches 123 distributed at equal intervals are formed on the outer cavity surface of the third through hole.

In order to control the size of the base, the outer diameters of the first connecting disc and the second connecting disc are not different too much. Therefore, if the third notch is too long, the bayonet in which the movable portion is inserted is closer to the through hole 14, and the first connecting disc fixedly arranged on the second connecting disc 12a may influence the folding of the movable portion of the second connecting disc, so that the folding range of the movable portion is smaller. For this reason, the length of the third notch is not preferably too long, and preferably the length of the third notch is not greater than the length of the second notch in the first flange. The movable part 22 with the shorter connecting rod can be selected as the movable part clamped into the third bayonet, and the length of the connecting rod of the movable part can be adjusted according to actual requirements. Because the movable part is clamped in the same annular cavity, the movable part of the second connecting disc is folded into a layer to surround the periphery of the movable part connected with the first connecting disc in the folded state. Thus, the folded anchor disc has three movable parts, 8 outermost layers and 4 inner layers.

The limiting base 13 is used for limiting the rotation angle of the movable part connected with the second connecting disc. The movable part on the first connecting disc or the second connecting disc which is not limited can use the clamping part as the shaft to rotate in the circumferential direction, and the rotation angle of the second connecting disc can be limited by the arrangement of the limiting base 13. The limiting base 13 is a cylinder, and the diameter of the limiting base is not smaller than that of the second connection. The limiting base is arranged below the second connecting disc, and when the movable part connected with the second connecting disc is unfolded, the limiting base can prevent the movable part from continuously rotating downwards (namely rotating towards the second end face side of the base).

As shown in fig. 4, when the first land 11 and the second land 12 are stacked, notches (including the first notch and the second notch) on the first land are staggered in the circumferential direction with notches on the second land. The staggered notches can limit the maximum unfolding angle of the movable part on the first connecting disc in an unfolding state to be in a state that the movable part is parallel to the bottom surface of the first connecting disc 11, play a role in rotation limiting and prevent the movable part from continuously rotating downwards; on the other hand, the movable parts connected with the first connecting disc and the second connecting disc can be partially overlapped in the overlooking direction, so that no gap exists in the overlooking projection after all the movable parts of the anchor disc are unfolded, grout can be prevented from flowing out from the gap to the position below the anchor disc during grouting, and the effect of enhancing the bearing capacity of the anchor disc is achieved.

As shown in fig. 7 and 8, the movable portion is clamped in the annular cavity of the connecting disc, the connecting rod of the movable portion is connected with two torsion springs 3, and the torsion springs 3 are respectively located at the far connecting rod sides of the first protrusion 213 and the second protrusion 214. The end face of the connecting rod, which is far away from the free part, and the outer cavity surface of the annular cavity are respectively provided with a small hole matched with the 3 tail ends of the torsion springs, the first tail ends of the torsion springs 3 are inserted into the small holes in the end face of the clamping part for fixation, and the second tail ends are inserted into the small holes in the outer cavity surface of the annular cavity for fixation. By the arrangement of the torsion spring, the anchor disc is in the unfolded state shown in fig. 1 in the natural state, and the anchor disc is in the folded state under the action of external force (such as the restraint ring 5 shown in fig. 1). After the restraint ring 5 is opened, each movable part can be rapidly rotated to the unfolding state from the folding state under the action of the torsion spring, and the situation that the movable parts are not fully unfolded or the unfolding direction is not controlled due to external force interference is avoided. Similarly, when the second connecting disc in the embodiment shown in fig. 5 is connected to the movable portion, a torsion spring with the same structure may be disposed to realize that the movable portion is rapidly expanded outward, which is not described herein again.

The application also provides an anchoring assembly manufactured by using the anchor disc, as shown in fig. 10, the anchoring assembly comprises the anchor disc 1, a constraint ring 5 and an anchor rod 4; the restraint ring 5 is sleeved outside the movable parts to fix all the movable parts in a furled state; the anchor rods 4 penetrate through the through holes and are fixedly connected with the second end surface (namely the bottom of the anchor disc) of the anchor disc. In an embodiment of the application, the anchor rod and the anchor disc can be fixedly connected at the bottom of the through hole of the anchor disc through a nut.

Preferably, as shown in fig. 11, the restraining ring 5 comprises a flexible metal strip 51 and a pin 52, wherein the flexible metal strip 51 has two ends respectively provided with circular holes, the pin 52 penetrates through the two circular holes to connect the ends of the metal strip into a ring, so as to restrain the anchor disc in the folded state, and after the pin 52 is pulled out, the restraining ring is opened, and the anchor disc is unfolded as shown in fig. 12.

The anchor disk of the present application is used as follows:

1. pre-drilling an anchor hole with an expanding section;

2. after the anchor disc and the anchor rod are fixedly installed, a grouting pipe is bound at the bottom of the anchor rod close to the anchor disc, the anchor disc is bound in a furled state through a binding ring, and a pull rope is fixed at the top end of a pin shaft of the binding ring to complete assembly;

3. the assembled anchor rod component is put into a pre-drilled anchor hole, when the anchor rod reaches an expanding section, a pulling force is applied to the pulling rope, so that the pin shaft is pulled out of the circular ring hole of the restraint ring, the restraint ring falls off, and the anchor disc is expanded at the expanding section under the action of the torsion spring;

4. and (4) grouting after the anchor disc is unfolded, and withdrawing the grouting pipe from the anchor hole while grouting.

The anchor disc can also be applied to other construction methods, for example, a through hole in the middle of the anchor disc is used for a drill rod to pass through, so that the drill rod is detachably connected with the anchor disc, and other through holes of the anchor disc can be used for fixing anchor bars; the drill rod penetrates through the anchor disc in the folded state, and the movable anchor disc and the anchor bars are arranged on the drilling side and enter the hole; and after the diameter expansion is finished at the preset position, applying tension to the pull rope to open the restraint ring and expand the anchor disc, and then finishing grouting.

After grouting, the slurry is coagulated into an integral bearing block in the anchor hole of the expanded section. When the anchor rod is under tension, the anchor rod directly transmits force to the anchor disc base, then the expanded anchor disc applies upward force to the solidified slurry of the diameter expanding section, and the direction of the force applied to the solidified slurry by the soil body above the diameter expanding section is opposite, so that the solidified slurry is in a compressed state.

In the anchor work progress, need not to carry out secondary slip casting behind anchor disc and the anchor rod subassembly lower hole of this application, the construction flow is simple and convenient. The movable part that expandes increases the lifting surface area, increases the local pressure and die-cut bearing capacity, guarantees simultaneously that the enlarged footing solidifies the more complete closely knit of slurry, is favorable to improving bearing performance and anti floating effect.

Claims (15)

1. An expanded pressure type anchor disc is characterized by comprising a base and a plurality of movable parts distributed at intervals around the center of the base;

the base comprises a first end face and a second end face, and at least one through hole penetrating through the first end face and the second end face is formed in the base;

the movable part is respectively connected with the base in a rotating way, so that the movable part can be unfolded or folded relative to the center of the base, wherein the folding direction is relative to the first end surface.

2. The anchor disc of claim 1, wherein the base comprises a limiting base and a connecting base, the limiting base is fixedly connected with the connecting base in a stacked mode, the connecting base comprises at least one layer of connecting disc, and the connecting discs are fixedly connected in a stacked mode.

3. The anchor disc of claim 2, wherein the connecting base comprises a first connecting disc and a second connecting disc, the first connecting disc, the second connecting disc and the limiting base are sequentially and fixedly connected in a stacked manner, the first connecting disc and the second connecting disc are cylindrical, and the outer diameter of the first connecting disc is smaller than that of the second connecting disc; at least one annular cavity surrounding the through hole is formed in the first connecting disc and the second connecting disc along the circumferential direction.

4. The anchor disc of claim 3, wherein the first connecting disc is provided with a first annular cavity and a second annular cavity which are coaxial, an annular rib is arranged between the first annular cavity and the second annular cavity to separate the first annular cavity and the second annular cavity, and the outer diameter of the first annular cavity is smaller than that of the second annular cavity;

a plurality of first notches in the radial direction are arranged on the first connecting disc at equal intervals in the circumferential direction, and second notches in the radial direction are formed between every two adjacent first notches; the first notches are formed between the annular rib and the outer wall of the through hole from the edge of the first connecting disc, and first bayonets distributed at equal intervals are formed on the annular rib; the second notch is formed between the outer cavity surface of the second annular cavity and the annular rib from the edge of the first connecting disc, and second bayonets distributed at equal intervals are formed on the outer cavity surface of the second annular cavity.

5. An anchor pad according to claim 4, wherein the second pad is of the same construction as the first pad.

6. The anchor disc of claim 4, wherein a third annular cavity is formed in the second connecting disc, a plurality of third notches are formed in the second connecting disc at equal intervals in the circumferential direction, the third notches are formed from the edge of the second connecting disc to a position between the outer cavity surface of the third annular cavity and the outer wall of the through hole, and third bayonets are formed in the outer cavity surface of the third through hole and distributed at equal intervals.

7. The anchor disc of claim 5 or 6, wherein the notches in the first connecting disc are circumferentially staggered with the notches in the second connecting disc when the first connecting disc and the second connecting disc are fixedly connected in a stacked manner.

8. The anchor disc of claim 7, wherein the movable portion comprises a connecting rod, and a sheet-shaped free portion and a clamping portion disposed at two ends of the connecting rod, wherein the connecting rod is receivable in the first notch, the second notch, and the third notch; joint portion is including setting up the first arch and the second of connecting rod both sides are protruding, joint portion can with first bayonet socket, second bayonet socket, third bayonet socket cooperation make the movable part with first connection pad or the second connection pad rotates to be connected.

9. An anchor disc according to claim 8, wherein two torsion springs are connected to the connecting rod of the movable portion, the torsion springs being located on distal connecting rod sides of the first and second bosses, respectively; the first tail end of the torsion spring is fixed on the end face of the clamping portion, and the second tail end of the torsion spring is fixed on the outer cavity face of the annular cavity.

10. The anchor disc of claim 9, wherein the end surface of the connecting rod away from the free portion and the outer cavity surface of the annular cavity are respectively provided with small holes matched with the ends of the torsion spring, so that the ends of the torsion spring are connected with the connecting end and the outer cavity surface of the annular cavity through the small insertion holes.

11. The anchor disc of claim 8, wherein the connecting rod, the clamping portion and the free portion of the movable portion are integrally formed.

12. The anchor disc of claim 2, wherein the restraining base is a cylinder having an outer diameter no less than an outer diameter of the connection base.

13. An anchor pad according to any one of claims 1 to 6 wherein the base is integrally formed.

14. An anchoring assembly made using the anchor disc of any one of claims 1-13, wherein the anchoring assembly comprises an anchor disc, a restraining ring, and an anchor rod; the restraining ring is sleeved outside the movable part to fix the movable part in a furled state; the anchor rod penetrates through the through hole and is fixedly connected with the second end face of the anchor disc.

15. The anchoring assembly of claim 14 wherein said constraining ring comprises a flexible metal strip having two ends each provided with an annular hole and a pin extending through said two annular holes to connect said metal strip ends into a loop.

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