CN108560612B

CN108560612B - Water stop device

Info

Publication number: CN108560612B
Application number: CN201810451560.7A
Authority: CN
Inventors: 李宏; 宋义军; 李冬晗
Original assignee: Shenzhen Pusaite Construction Engineering Technology Co ltd
Current assignee: Shenzhen Pusaite Construction Engineering Technology Co ltd
Priority date: 2018-05-12
Filing date: 2018-05-12
Publication date: 2023-07-14
Anticipated expiration: 2038-05-12
Also published as: CN108560612A

Abstract

The invention discloses a water stopper, which is used for preventing seepage at the joint of an anchor rod body and a concrete bottom plate, is arranged on the anchor rod body in the concrete bottom plate, and comprises a plate body and a cylinder body penetrating through the plate body, wherein the cylinder body is provided with a first through hole for the anchor rod body to penetrate through, the inner wall of the first through hole is provided with a first annular groove, and sealant is filled in the first annular groove. The cover body, the cylinder body and the plate body are arranged on the anchor rod body in a penetrating way and move to a proper position of the anchor rod body; filling sealant in a cavity between the first annular groove and the anchor rod body; the cover body is covered on the cylinder body. The water stopper provided by the invention has a good seepage prevention effect.

Description

Water stop device

Technical Field

The invention relates to the technical field of building seepage prevention, in particular to a water stopper.

Background

Under the condition that the depth of a building foundation is larger than the groundwater level, the building can be influenced by the buoyancy of the groundwater to generate floating, and when the buoyancy is larger than the weight of the building, an anti-floating anchor rod is arranged below a bottom plate.

Referring to fig. 1, in the construction process of the anti-floating anchor rod, firstly, a hole is drilled on a construction surface, one end of an anti-floating anchor rod body 01 is placed into the hole, then cement mortar or pure cement slurry is injected, a section of anchor rod body is reserved, and the anchor rod body is poured into a concrete bottom plate after the pulling resistance of an anchor rod reaches the design requirement. Because the anti-floating anchor rod body 01 needs to pass through the bottom plate 02 and the waterproof layer 03 below the bottom plate 02, the integrity of the waterproof layer 03 is damaged, and the probability of leakage is greatly improved.

Prior art solutions to such problems typically have two approaches: 1. a water stop sheet is welded on the anti-floating anchor rod body 01 outside the drilled hole so as to increase the path of capillary water along the axis direction of the anchor rod body and achieve the aim of seepage prevention. However, when the water stop sheet is welded, the problems that 1, leakage points exist when full welding is not in place; 2. the water stop sheets are welded into rigid connection, and leakage points can also appear when deformation occurs during stress. Meanwhile, the tensile strength of the steel bars can be influenced by welding, and the higher the strength of the steel bars is, the larger the strength loss of the steel bars after welding is, so the steel bars are not suitable for high-strength finish rolling deformed steel bars.

2. A rubber water stop ring or a rubber water stop belt 04 is arranged on an anti-floating anchor rod body 01 outside a drilling hole, and the rubber water stop ring or the rubber water stop belt 04 swells when meeting water, so that the waterproof and anti-seepage effects are achieved. However, the method is greatly influenced by rainy days, a water stop ring or a water stop belt often expands in advance when a concrete bottom plate is poured, a cavity is formed by retraction after concrete is solidified, the seepage prevention effect cannot be achieved, and the method has great hidden danger, and particularly, the problem of water prevention and seepage prevention of an anchor rod is more remarkable due to the fact that the anchor rod body adopts screw thread steel for prestressed concrete.

Disclosure of Invention

The invention aims to provide a water stopper which is used for solving the problem of leakage after an anchor rod penetrates through a bottom plate.

The invention discloses a water stopper which adopts the following technical scheme: a water stopper is used for preventing seepage of the joint of an anchor rod body and a concrete bottom plate and comprises a plate body and a cylinder body penetrating through the plate body, a first through hole for the anchor rod body to penetrate through is formed in the cylinder body, a first annular groove is formed in the inner wall of the first through hole, and a cavity formed by the first annular groove and the anchor rod body in a surrounding mode is filled with sealant.

As a preferable scheme, one end of the cylinder body is fixed with a cover body, and a second through hole for the anchor rod body to pass through is formed in the cover body.

As a preferable scheme, the first annular groove is arranged on the cylinder body and close to the top of one end of the cover body, and the cover body is covered on the first annular groove.

Preferably, the inner wall of the first through hole or the inner wall of the second through hole is provided with threads for fixing the anchor rod body.

As the preferable scheme, the second annular groove is formed in the outer wall of the cylinder body, the second annular groove is formed in the top of one end, close to the cover body, of the cylinder body, and threads for fixing the cover body are arranged in the second annular groove.

Preferably, the cylinder and the plate are integrally formed.

Preferably, the sealant is water-swelling water stop glue.

A construction method for a water stopper at the joint of an anchor rod body and a bottom plate comprises the following steps: the cover body, the cylinder body and the plate body penetrate through the anchor rod body and move to the proper position of the anchor rod body, the cavity between the first annular groove and the anchor rod body is filled with sealant, and the cover body covers the cylinder body.

In the preferred scheme, in the step of filling the sealant in the cavity between the first annular groove and the anchor rod body, the cylinder is moved along the axial direction of the anchor rod body after the sealant is filled, and part of sealant is uniformly distributed between the cylinder and the anchor rod body.

As a preferable scheme, the cover body, the cylinder body and the plate body can be sequentially arranged at the proper position of the anchor rod body in a penetrating way, wherein the positions of the cover body and the plate body are adjustable.

The water stopper disclosed by the invention has the beneficial effects that: the cylinder body is provided with a first through hole, the inner wall of the first through hole is provided with a first annular groove, the anchor rod body penetrates through the first through hole, the first annular groove is filled with sealant, the sealant seals the gap between the anchor rod body and the cylinder body, the plate body and the cylinder body are matched to change the moving direction of capillary water, meanwhile, the moving path of the capillary water is prolonged, the good seepage prevention effect is achieved, and the construction is simple and easy to operate.

Drawings

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic view of the structure of the water stopper of the present invention;

FIG. 3 is a schematic view of the structure of the cylinder and plate of the present invention;

fig. 4 is a schematic structural view of the cover body of the present invention.

Detailed Description

The invention is further illustrated and described below in conjunction with the specific embodiments and the accompanying drawings: referring to fig. 2, a water stopper is used for preventing seepage at the joint of the anchor rod body 10 and the concrete floor. The water stopper comprises a plate body 20, a cylinder body 30 penetrating through the plate body 20, and a cover body 40 covering one end of the cylinder body 30.

Referring to fig. 3 and 4, the cylinder 30 is provided with a first through hole 31 through which the anchor rod body 10 passes, the inner wall of the first through hole 31 is provided with a first annular groove 32, and a cavity enclosed by the first annular groove 32 and the anchor rod body 10 is filled with sealant.

Preferably, the first annular groove 32 is disposed on the cylinder 30 near the top of one end of the cover 40, and the cover 40 covers the first annular groove 32. The groove 32 is filled with sealant which is water-swelling water stop glue. The water-swelling water-stop adhesive is a single-liquid sealant, can be fully contacted with the anchor rod body 10, the cylinder body 30 and the cover body 40, becomes a rubber elastomer with good restorability after hardening, swells in volume after meeting water, and has good anti-seepage effect.

The anchor rod body 10 preferably adopts high-strength finish-rolled deformed steel bar, the surface of the high-strength finish-rolled deformed steel bar is provided with discontinuous external threads, the external threads are matched with threads arranged on the inner wall of the first through hole 31, and the anchor rod body is simple and convenient to install integrally, firm, safe, reliable and convenient to construct. If the anchor rod body 10 is made of other materials, such as common screw steel or steel strands, glue or iron wires can be used to fix the cylinder 30 in place on the anchor rod body 10.

The outer wall of the barrel 30 is provided with a second annular groove 33, the second annular groove 33 is arranged at the top of one end of the barrel 30, which is close to the cover body 40, and threads for fixing the cover body 40 are arranged in the second annular groove 33. The cover 40 is fixed to the cylinder 30 by the screw, and a second through hole 41 through which the anchor rod body 10 passes is formed in the cover 40. In other embodiments, the inner wall of the second through hole 41 is threaded, and the anchor rod body 10 is fixed by the threads provided on the inner wall of the second through hole 41.

In this embodiment, both ends of the cylinder 30 extend out of the plate 20, the plate 20 is a circular plate, and the cylinder 30 is disposed at the center of the plate 20. The cylinder 30 and the plate 20 are formed by integral injection molding of engineering plastics or integral casting of metals. In other embodiments, the plate 20 is disposed at an end of the cylinder 30 away from the cover 40, and the plate 20 is flush with an end of the cylinder 30. In other embodiments, the surface of the plate 20 is covered with annular grooves to extend the path of capillary water.

The invention also provides a construction method for seepage prevention at the joint of the anchor rod body 10 and the bottom plate, which comprises the following steps: the cover body 40, the cylinder body 30 and the plate body 20 are arranged on the anchor rod body 10 in a penetrating mode and move to the proper position of the anchor rod body 10, water swelling water stop glue is filled in the first annular groove 32 of the cylinder body 30 in the S20 mode, and the cover body 40 is covered on the cylinder body 30 in the S30 mode.

In step S20, after the sealant is filled, the cylinder 30 is moved along the axial direction of the anchor rod body 10, and part of the sealant is uniformly distributed between the cylinder 30 and the anchor rod body 10, so that the sealing performance is improved.

Wherein the cylinder 30 and the cover 40 are fixed by screw connection. The cover 40, the cylinder 30 and the plate 20 can be sequentially arranged at the proper position of the anchor rod body 10.

Wherein, the positions of the cover body 40 and the plate body 20 are adjustable. Because the cylinder 30 and the plate 20 are integrally formed, the cover 40 is covered on one end of the cylinder 30 far away from the cover 40, so that the position process of the cover 40 and the plate 20 is exchanged, namely, the integral forward or backward placing process of the cover 40, the cylinder 30 and the plate 20 is realized.

When the anchor rod body 10 adopts high-strength finish rolling deformed steel bar, the surface of the high-strength finish rolling deformed steel bar is provided with discontinuous external threads, the external threads are matched with the internal threads arranged in the first through hole 31, the integrated cylinder 30 and the integrated plate 20 are screwed to the proper position of the anchor rod body 10 during installation, after the sealant is filled, the anchor rod body is upwards rotated to a certain distance to enable the sealant to fill the threads in the cylinder body, and then the missing part of the groove sealant is filled.

The invention discloses a water stopper, a cylinder 30 is provided with a first through hole 31, a cover body 40 is provided with a second through hole 41, one side of the inner wall of the first through hole 31 close to the cover body 40 is provided with a first annular groove 32, an anchor rod body 10 passes through the first through hole 31 and the second through hole 41, and water-swelling water-stopping glue is filled in the anchor rod body 10And (3) withIn the annular cavity enclosed by the first annular groove 32 and the cover body 40, capillary water is prevented from passing through the gap, meanwhile, the moving direction of the capillary water is changed by matching the plate body 20 and the cylinder body 30, the moving path of the water is prolonged, good seepage prevention effect is achieved, and the construction is simple and easy to operate.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. The utility model provides a water stopper for the prevention of seepage of stock body and concrete bottom plate junction, its characterized in that includes the plate body and wears to locate the barrel on the plate body, the barrel has been seted up and has been supplied the first through-hole that the stock body passed, first annular groove is seted up to first through-hole inner wall, the cavity intussuseption that first annular groove and stock body enclose is filled with the sealant.

2. The water stopper according to claim 1, wherein a cover is fixed to one end of the cylinder, and a second through hole is formed in the cover for the anchor rod body to pass through.

3. The water stopper according to claim 2, wherein the first annular groove is provided on the cylinder body near a top of one end of the cover body, and the cover body is covered on the first annular groove.

4. The water stopper according to claim 2, wherein the first through hole inner wall or the second through hole inner wall is provided with a screw thread for fixing the anchor rod body.

5. The water stopper according to any one of claims 1 to 4, wherein a second annular groove is provided in the outer wall of the cylinder, the second annular groove is provided in the top of one end of the cylinder near the cover, and a screw thread for fixing the cover is provided in the second annular groove.

6. The water stopper according to any one of claims 1 to 4, wherein the cylinder and the plate are integrally formed.

7. The water stop according to any one of claims 1 to 4, wherein the sealant is a water-swellable water stop.

8. A method of constructing a water stopper according to any one of claims 1 to 7, comprising the steps of:

the cover body, the cylinder body and the plate body are penetrated through the anchor rod body and move to the proper position of the anchor rod body;

filling sealant in a cavity between the first annular groove and the anchor rod body;

the cover body is covered on the cylinder body.

9. The method of constructing a water stopper according to claim 8, wherein in the step of filling the sealant in the cavity between the first annular groove and the anchor rod body, the cylinder is moved in the axial direction of the anchor rod body after the sealant is filled, and a part of the sealant is uniformly distributed between the cylinder and the anchor rod body.

10. The method for constructing a water stopper according to claim 8, wherein the cover, the cylinder and the plate are sequentially inserted into the appropriate positions of the anchor rod body, and the positions of the cover and the plate are adjustable.