CN215165542U - Anti-floating anchor rod for basement - Google Patents

Abstract

The utility model discloses an anti-floating anchor rod of basement relates to basement construction field, aims at solving current anti-floating structure cost higher, the manpower consumes big technical problem. The following technical scheme is adopted: including anchor shell, anchor leg, ejector pin and gland, the anchor shell is hollow columnar structure, the uncovered and lower extreme convergence in upper end of anchor shell forms the toper inner wall, the anchor leg slides and alternates on the anchor shell and can all arrange the anchor shell in when retracting, the anchor leg is equipped with a plurality ofly and follows anchor shell circumference equipartition, the inner of anchor leg is fixed with the baffle that the area is greater than the anchor leg, the ejector pin cartridge meets with the baffle in the anchor shell and the side, the convergence of ejector pin lower extreme forms the conical surface with toper inner wall adaptation and laminates with the toper inner wall, the gland is fixed in the upper end of anchor shell and contacts with the ejector pin up end.

Description

Anti-floating anchor rod for basement

Technical Field

The utility model relates to a basement construction field especially relates to an anti stock that floats of basement.

Background

The basement structure generally forms a closed box body, and due to the existence of underground water, the basement structure can be subjected to upward water floating force under the action of water pressure. For underground soil structure engineering with deeper burial depth and higher anti-floating water level, the anti-floating design is an important component of the structural design. If the structure floating resistance does not meet the requirement, the underground soil structure can float upwards and the bottom plate can crack, so that the underground soil structures with different degrees are damaged.

The existing method generally increases the gravity of the basement, so that the water in the underground soil is not enough to provide the buoyancy required by the basement to achieve the anti-floating effect.

Aiming at the related technologies, the inventor thinks that in the actual use process, the adoption of weighting to achieve the anti-floating effect often needs to add other heavier structures on the basement, so that the anti-floating cost is increased, a large amount of manpower needs to be wasted during operation, and the maintenance is continuously needed subsequently.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems that the cost of the existing anti-floating structure is high and the manpower consumption is large, the application provides a basement anti-floating anchor rod.

The utility model provides a basement anti-floating anchor rod, includes anchor shell, anchor leg, ejector pin and gland, the anchor shell is hollow columnar structure, the uncovered and lower extreme convergence in upper end of anchor shell forms the toper inner wall, the anchor leg slides and alternates on the anchor shell and can all arrange the anchor shell in when retracting, the anchor leg is equipped with a plurality ofly and follows anchor shell circumference equipartition, the inner of anchor leg is fixed with the baffle that the area is greater than the anchor leg, the ejector pin cartridge meets with the baffle just to the side in the anchor shell, the convergence of ejector pin lower extreme forms the conical surface and this conical surface and the laminating of toper inner wall with the toper inner wall adaptation, the gland is fixed in the upper end of anchor shell and with the contact of ejector pin up end.

By adopting the technical scheme, during construction of the basement, the anchor shell is firstly inserted into underground soil, each anchor leg is installed in the anchor shell, then the ejector rod is inserted into the anchor shell, the ejector rod drives each anchor leg to be outwards propped open and inserted into the soil, then the gland is fixed at the upper end of the anchor shell and is pressed against the ejector rod, and finally the gland and the upper end of the anchor shell are embedded into the basement bottom plate when concrete is poured, so that the basement bottom plate and the underground soil form a whole. When the gravity of the basement is not enough to resist the buoyancy of underground water, the basement generates a floating trend under the action of the buoyancy of the underground water, at the moment, the anchor rod also generates an upward movement trend due to the fact that the basement and the anchor rod move integrally, but the anchor rod is fixed in underground soil, the underground soil provides forced downward pulling force for the anchor rod, the anchor rod is prevented from floating upwards, and therefore the basement is prevented from floating upwards. The structure is only a plurality of anchor rods arranged below the bottom plate, the structure is simple, the cost is low, the anchor rods are arranged by 1-2 persons, the consumed manpower is less, the anchor rods can realize dual anti-floating of gravity and tension, and the anti-floating effect is better.

Preferably, the outer side of the anchoring leg is tilted upwards to form a barb shape.

Through adopting above-mentioned technical scheme, barb-like anchor leg can provide bigger holding power for the fixed of anchor shell for the anchor is more firm, and anti floating effect is better.

Preferably, the outer ends of the legs are pointed.

Through adopting above-mentioned technical scheme, when the anchor leg received the pressure of ejector pin when overhanging, most advanced structure can reduce the inserted resistance of anchor leg for the anchor leg is overhanging laborsaving, smooth and easy more.

Preferably, the inner surface of the baffle is matched with the side surface of the ejector rod and is attached to the side surface of the ejector rod.

By adopting the technical scheme, when the anchor leg is in an outward extending state, the inner surface of the baffle is attached to the side surface of the ejector rod, so that the stress area of the anchor leg is increased, the anchor leg can be better prevented from retracting, the stability of anchor leg support is improved, and the anti-floating effect is further improved.

Preferably, the lower surface of the gland is provided with a clamping groove, and the upper end of the ejector rod is arranged in the clamping groove.

Through adopting above-mentioned technical scheme, the upper end card of during operation ejector pin can avoid the horizontal skew of ejector pin in the draw-in groove to guarantee the ejector pin to the external supporting force of anchor leg, and then guarantee the firm of anchor, and then guarantee anti floating effect.

Preferably, the lower end of the anchor shell is sealed by a conical structure, and the lower end face of the ejector rod is a plane.

Through adopting above-mentioned technical scheme, leave certain space between the lower terminal surface of during operation ejector pin and the bottom of anchor shell, this space guarantees that ejector pin and toper inner wall cooperate with the mode of face-to-face contact, has guaranteed that the ejector pin is fixed firm. If the lower end of the ejector rod is also of a tip end structure, the tip end of the ejector rod and the tip end of the conical inner wall can only be contacted during assembly of the ejector rod and the ejector rod, and the two conical surfaces are not tightly attached, so that the ejector rod is easily fixed and is not firm enough.

Preferably, the junction of the part of the anchor shell forming the conical inner wall and the rest part forms an annular step surface, and the upper edge of the conical inner wall forms the inner edge of the step surface.

By adopting the technical scheme, on one hand, a gap is reserved between the ejector rod and the inner wall of the anchor shell when the ejector rod is installed, so that the friction between the ejector rod and the inner wall of the anchor shell is avoided, and the installation is more convenient; on the other hand, space can be provided for installation of the baffle.

Preferably, the cross sections of the anchor shell, the anchor legs and the mandril are all circular.

Through adopting above-mentioned technical scheme, anchor leg, anchor shell and ejector pin all are cylindrical structure, and the conical surface is also established to the corresponding conical surface, and processing is easier to circumference atress everywhere is unanimous, does benefit to and guarantees structural stability.

In summary, the present application has the following beneficial effects:

1. one end of the anchor rod is fixed in a basement bottom plate, the other end of the anchor rod is embedded into underground soil, the bottom plate and the underground soil are connected into a whole, certain pulling force is provided for the basement when the gravity of the basement is not enough to resist the buoyancy of the underground water, and the gravity and the pulling force resist the buoyancy of the underground water together, so that the anti-floating effect is achieved, the structural cost is low, the labor cost is low, and the anti-floating effect is good;

2. the anchor rod of this application forms barb-like, can improve anchor power, makes anti floating effect better.

Drawings

FIG. 1 is a schematic view of the assembly structure of a rock bolt of an embodiment of the present application;

fig. 2 is a schematic cross-sectional view of a bolt according to an embodiment of the present application.

Description of reference numerals:

1. a base plate; 2. an anchor shell; 21. an annular step surface; 3. a top rod; 4. anchor legs; 41. an anchor leg body; 42. a baffle plate; 5. a gland; 51. and (4) a groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application provides a basement anti-floating anchor rod. Referring to fig. 1 and 2, the anchor rod of the present application is used for connecting a basement bottom plate 1 and underground soil, and one anchor rod is arranged at each of the center and four corners of the basement bottom plate 1. The stock includes anchor shell 2, ejector pin 3, anchor leg 4 and gland 5. The upper end of the anchor shell 2 and the gland 5 are fixed in the bottom plate 1 of the basement through concrete pouring.

Referring to fig. 2, the anchor housing 2 is composed of an upper cylindrical section and a lower conical section, both of which are hollow, and the inner diameter of the cylindrical section is larger than that of the conical section to form an annular step surface 21 at the junction of the two sections. Three groups of through holes distributed along the circumferential direction of the cylindrical section are formed in the side wall of the cylindrical section, each group of through holes comprises four through holes uniformly distributed along the circumferential direction, and the through holes are used for slidably inserting the anchor legs 4.

Referring to fig. 2, the ejector rod 3 is composed of an upper cylindrical section and a lower circular truncated cone section, the outer diameter of the cylindrical section is smaller than the inner diameter of the cylindrical section of the anchor shell 2, and the side surface of the circular truncated cone section is attached to the inner wall of the conical section of the anchor shell 2.

Referring to fig. 2, the anchor leg 4 is formed of two parts, an anchor leg body 41 and a retainer 42. The anchor legs 4 are arranged in one-to-one correspondence with the through holes of the cylindrical section of the anchor shell 2. Anchor leg body 41 all inclines upward to stick up the mode and arranges that the outer end of anchor leg body 41 is set as the pointed end, baffle 42 integrated into one piece is at the inner of anchor leg body 41, baffle 42 diameter is greater than anchor shell 2 through-hole diameter in order to block anchor leg 4 from droing from anchor shell 2, the internal surface of baffle 42 is set as the cambered surface with ejector pin side adaptation.

Referring to fig. 2, the gland 5 is of an original plate-shaped structure, and the gland 5 is welded and fixed with the anchor shell 2. The lower surface of the gland 5 is provided with a groove 51 for accommodating the upper end of the push rod 3.

The implementation principle of the basement anti-floating anchor rod of the embodiment of the application is as follows:

during operation, firstly, holes matched with the anchor shell 2 are drilled in corresponding underground soil, then the anchor shell 2 is inserted into the holes, then all the anchor legs 4 are inserted into the through holes of the anchor shell 2, the whole anchor legs 4 are all arranged in the anchor shell 2, no part protruding out of the anchor shell 2 exists, then the ejector rod 3 is inserted into the anchor shell 2, all the anchor legs 4 are externally supported and inserted into the underground soil under the action of the conical surface at the lower end of the ejector rod 3, and finally the gland 5 is fixed on the upper end surface of the anchor shell 2 and is pressed on the upper end surface of the ejector rod 3. And when the basement concrete is poured, the upper end of the anchor shell 2 and the gland 5 are solidified in the basement bottom plate 1, so that the connection between the basement bottom plate 1 and the underground soil is completed.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. Anti anchor rod that floats of basement, its characterized in that: including anchor shell (2), anchor leg (4), ejector pin (3) and gland (5), anchor shell (2) are hollow columnar structure, the uncovered and lower extreme convergence in upper end of anchor shell (2) forms the toper inner wall, anchor leg (4) slide to alternate on anchor shell (2) and can all arrange in anchor shell (2) when retracting, anchor leg (4) are equipped with a plurality ofly and follow anchor shell (2) circumference equipartition, the inner of anchor leg (4) is fixed with baffle (42) that the area is greater than anchor leg (4), ejector pin (3) cartridge just the side meets with baffle (42) in anchor shell (2), ejector pin (3) lower extreme convergence forms the conical surface and this conical surface and the laminating of toper inner wall with the toper inner wall of toper inner wall adaptation, gland (5) are fixed in the upper end of anchor shell (2) and with ejector pin (3) up end contact.

2. The basement anti-floating anchor rod of claim 1, wherein: the outer side of the anchor leg (4) is tilted upwards to form a barb shape.

3. The basement anti-floating anchor rod of claim 1, wherein: the outer end of the anchor leg (4) is a pointed end.

4. The basement anti-floating anchor rod of claim 1, wherein: the inner surface of the baffle (42) is matched with the side surface of the ejector rod (3) and is attached to the side surface of the ejector rod (3).

5. The basement anti-floating anchor rod of claim 1, wherein: the lower surface of the gland (5) is provided with a clamping groove, and the upper end of the ejector rod (3) is arranged in the clamping groove.

6. The basement anti-floating anchor rod of claim 1, wherein: the lower end of the anchor shell (2) is sealed by a conical structure, and the lower end surface of the ejector rod (3) is a plane.

7. The basement anti-floating anchor rod of claim 1, wherein: the part that anchor shell (2) formed the toper inner wall forms annular ladder face (21) with the junction of other part, and the interior edge that forms annular ladder face (21) on the reason of the toper inner wall.

8. The basement anti-floating anchor rod of any one of claims 1-7, wherein: the cross sections of the anchor shell (2), the anchor legs (4) and the ejector rod (3) are all circular.

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