CN216518059U - Composite back-sticking type self-adhesive rubber water stop - Google Patents

Abstract

The utility model provides a composite back-pasting type self-adhesive rubber waterstop, which comprises: the water-stop valve comprises a body part, a valve body and a valve body, wherein annular water-stop areas are symmetrically distributed on the body part; the normal water stopping part is arranged in the transverse middle of the body part and is perpendicular to the body part, and a normal water stopping area is formed in the normal water stopping part; the normal water stopping part is arranged on the same side of the body part, and the normal water stopping part is arranged on the same side of the body part; wherein, the correspondence of ring direction stagnant water district is equipped with one side surface of fin with the both sides surface in normal direction stagnant water district all is provided with from the viscose layer.

Description

Composite back-sticking type self-adhesive rubber water stop

Technical Field

The utility model belongs to the technical field of waterproof engineering of tunnel construction joints, and particularly relates to a composite back-attached self-adhesive rubber water stop.

Background

The rubber waterstop is mainly used for foundation engineering which is arranged in a construction joint and a deformation joint when concrete is poured in different times and is integrated with a concrete structure, such as a tunnel culvert, a water delivery aqueduct, a retaining dam and the like. The rubber waterstops are divided into two types according to the setting positions: back-pasted water stop and middle-buried water stop. According to the statistical data of the water leakage of the tunnel, about 70% of tunnels have the water leakage phenomena with different degrees, the serious leakage accounts for about 30%, and the water leakage at the joints such as construction joints, deformation joints and the like is particularly obvious, which indicates that the water stop belt has problems in structural design, material performance and construction method.

At present, the existing water stop belt still has some problems, for example, the buried rubber water stop belt often has the problems of inaccurate position, infirm fixation and the like in the construction process, and hidden danger is buried for tunnel leakage water. Because the rigidity of rubber material itself is not enough and the action of gravity, after the installation of well formula rubber waterstop of burying was accomplished, in the tunnel hunch waist and above region, the flagging phenomenon in waterstop one side will appear, leads to the waterstop to cut the concrete, has increased the safe risk that the lining concrete falls the piece, seriously endangers vehicle operation safety. In addition, two water stops are required to be arranged on the primary waterproof layer of the railway tunnel construction joint, two-step construction is carried out, the construction process is complex, and the construction cost is relatively high. Therefore, the existing rubber waterstop for the tunnel construction joint has the problems of non-centered installation position, low transverse rigidity, complex construction process, high construction cost, poor water stopping effect and the like.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems, the utility model aims to provide a composite back-attached self-adhesive rubber water stop belt which can effectively block a water seepage channel, obviously improve the water stopping performance, and is convenient to center and accurate and reliable in positioning when being installed.

To this end, according to the utility model, a composite back-adhesive self-adhesive rubber water stop is proposed, comprising: the body part is provided with annular water stop areas which are symmetrically distributed; the normal water stopping part is arranged in the transverse middle of the body part and is perpendicular to the body part, and a normal water stopping area is formed in the normal water stopping part; the normal water stopping part is arranged on the same side of the body part, and the normal water stopping part is arranged on the same side of the body part; wherein, the correspondence of ring direction stagnant water district is equipped with one side surface of fin with the both sides surface in normal direction stagnant water district all is provided with from the viscose layer.

In one embodiment, a deformation zone is provided in the middle of the body portion, the deformation zone having a longitudinally extending groove on the opposite side of the normal water stop portion.

In one embodiment, extension regions are respectively arranged at two lateral sides of the body part, and the thicknesses of the deformation region, the circumferential water stop region and the extension regions are set to be gradually reduced.

In one embodiment, the self-adhesive layer is formed by non-asphalt high-molecular self-adhesive, and the thickness of the self-adhesive layer is set to be in the range of 2-20 mm.

In one embodiment, the vertical extension height of the normal water stop portion is less than the lateral width of the body portion.

In one embodiment, a ratio of a thickness of the normal water stopping portion to a thickness of the body portion is 2 to 3.

In one embodiment, the normal water stop portion has a vertical extension height greater than a height of the rib.

In one embodiment, the rib has a thickness greater than a thickness of the body portion.

In one embodiment, the free end of the normal water stopping portion is configured to be equal in width or arranged to be gradually increased from the axial inner side to the free end, thereby forming an inverted conical surface.

In one embodiment, the junction of the normal water stop portion and the body portion forms a rounded transition.

Compared with the prior art, the utility model has the advantages that:

according to the composite back-pasting type self-adhesive rubber waterstop, the normal waterstop part structure is arranged, so that the waterstop is centered and accurately positioned when being installed, the manufacturing is convenient, and meanwhile, the construction and installation are convenient. Under the same working condition, the composite back-attached self-adhesive rubber waterstop can use a waterstop specification model with smaller width, so that the weight of the waterstop can be obviously reduced, and the transverse rigidity of the waterstop is improved. Through the height of adjustment fin, the width of body part and setting up normal direction composite water stop structure, prolonged the compound back of the body and pasted formula self-adhesion rubber water stop around oozing the passageway length, further improve the stagnant water effect of waterstop on sticky sealed basis. The water seepage channels between the corresponding surfaces of the annular water stopping area and the normal water stopping area and the lining concrete are bonded and sealed through the self-adhesive glue layer, so that the water seepage channels are blocked by the adhesive sealing strips, and the water stopping performance is obviously improved. The body part is provided with the transverse rigidity of the water stop through the structure with different thicknesses, the one-side sagging trend caused by insufficient self rigidity and gravity action of the water stop can be slowed down, and the water stop is convenient to install. In addition, one waterproof measure can be realized by using the composite back-attached self-adhesive rubber water stop, the construction process is simplified, the comprehensive construction cost of a project is reduced, concrete cutting of the water stop is avoided by using the composite back-attached self-adhesive rubber water stop, and the safety risk that the lining concrete falls off is reduced.

Drawings

The utility model will now be described with reference to the accompanying drawings.

Fig. 1 schematically shows the structure of the composite back-stuck self-adhesive rubber water stop according to the present invention.

Fig. 2 schematically shows the structure of another embodiment of the composite back-stuck self-adhesive rubber water stop according to the present invention.

Fig. 3 is a schematic diagram of the composite back-attached self-adhesive rubber waterstop according to the utility model arranged at a construction joint.

In the present application, the drawings are all schematic and are used only for illustrating the principles of the utility model and are not drawn to scale.

Detailed Description

The utility model is described below with reference to the accompanying drawings.

In this application, it should be noted that the horizontal direction in fig. 1 is defined as the lateral direction, the vertical direction in fig. 1 is defined as the vertical direction, and the direction perpendicular to the paper surface in fig. 1 is defined as the longitudinal direction. In addition, directional terms or limitations used in the present application, such as "upper", "lower", "left", "right", etc., refer to fig. 1 as referenced. They are not intended to limit the absolute positions of the parts involved, but may vary from case to case.

Fig. 1 schematically shows the structure of a composite back-stuck self-adhesive rubber water stop 100 according to the present invention. As shown in fig. 1, the composite back-stuck self-adhesive rubber water stop 100 includes a body portion 1, and the body portion 1 is in a plate-like structure. In one embodiment, the body portion 1 may be made of a rubber material. The body portion 1 is formed with circumferential water stop zones 11 symmetrically distributed in the transverse direction. A normal water stopping portion 2 is provided in a widthwise middle portion of the body portion 1, the normal water stopping portion 2 being perpendicular to the body portion 1, and the normal water stopping portion 2 is provided on a first surface (a lower end surface in fig. 1) of the body portion 1. The normal water stopping portion 2 is formed with a normal water stopping region 21. A plurality of ribs 3 are further disposed on the first surface of the body portion 1, each rib 3 is disposed in parallel with each other and extends along the longitudinal direction of the body portion 1, and the plurality of ribs 3 are distributed at intervals in the transverse direction. The convex ribs 3 and the normal water stop part 2 are positioned on the same side of the body part 1 and are arranged on the first surface of the body part 1.

In the embodiment shown in fig. 1, two ribs 3 are respectively provided on the left and right sides of the normal water stop portion 2 on the first surface of the body portion 1, and the ribs 3 on the left and right sides of the body portion 1 are respectively symmetrically provided. The convex rib 3 not only can improve the water stopping effect of the composite back-attached self-adhesive rubber water stop 100, but also is beneficial to improving the pressure resistance of the composite back-attached self-adhesive rubber water stop 100.

According to the present invention, the transverse width of the body portion 1 is set to be in the range of 250-260 mm. The vertical extension height of the normal water stopping portion 2 is set to be smaller than the lateral width of the body portion 1. Further preferably, the vertically extending height of the normal water stopping portion 1 is set to be greater than the height of the convex rib 3. The structure of the normal water stopping part 2 is convenient for centering and accurate positioning of the water stopping belt during installation, is convenient for manufacturing, and is convenient for construction and installation. Compared with the existing ordinary rubber water stop with the width of 300mm, under the same working condition, the composite back-attached self-adhesive rubber water stop 100 can use the water stop specification model with smaller width, so that the weight of the water stop can be obviously reduced, and the transverse rigidity of the water stop can be improved.

From this, through the height of adjustment fin 3, the width of body part 1 and set up normal direction composite water stop structure, prolonged the compound back of the body formula self-adhesion rubber water stop 100 around oozing the passageway length, further improve the stagnant water effect of waterstop on sticky sealed basis.

The vertical extension height of the normal water stop portion 2 may be set, for example, in the range of 50-200 mm. The height of the ribs 3 may be set, for example, in the range of 20-25 mm.

According to the present invention, the ratio of the thickness of the normal water stopping portion 2 to the thickness of the body portion 1 is 2 to 3, and the thickness of the rib 3 is set to be larger than the thickness of the body portion 1.

In the embodiment shown in fig. 1, the free end of the normal water stopping portion 2 is configured to be equal in width.

In the embodiment shown in fig. 2, the thickness of the free end portion of the normal water stopping portion 2 is set to increase from the axial inner side to the free end, thereby forming an inverted tapered surface. After the construction is finished, the inverted conical surface-shaped structure at the end part of the free end of the normal water stopping part 2 is favorable for forming close fit with a construction joint, so that the bonding between the free end and the construction joint is firmer.

In one embodiment, a rounded transition is formed at the junction of the normal water stop portion 2 and the body portion 1 of the body portion 1. This can avoid stress concentration, and is advantageous for extending the service life of the waterstop 100.

As shown in fig. 1, circumferential water stop regions 11 are formed respectively between the lateral directions of the adjacent beads 3.

According to the present invention, as shown in fig. 1, self-adhesive layers 4 are respectively disposed on one side surface (first surface) of the circumferential water-stop region 11 on which the ribs 3 are correspondingly disposed and on both side surfaces of the normal water-stop region 21. The self-adhesive layer 4 is used for firmly bonding the corresponding surfaces of the annular water stop area 11 and the normal water stop area 21 of the composite back-attached self-adhesive rubber water stop band 100 with corresponding concrete in construction, so that the body part 1 and the normal water stop part 2 are bonded and sealed with the lining concrete water seepage channel to form an adhesive sealing strip to block the water seepage channel, and the water stopping performance is obviously improved.

In a preferred embodiment, the self-adhesive layer 4 is formed using a non-asphaltic polymeric self-adhesive. Further preferably, the thickness of the self-adhesive layer 4 is set in the range of 2-20 mm. The arrangement can fully play the adhesive property of the self-adhesive layer 4, and is very favorable for improving the adhesive effect of the composite back-attached self-adhesive rubber water stop 100 and concrete.

In order to ensure the bonding tightness of the circumferential water stopping region 11, the normal water stopping region 21 and the concrete, the ratio of the surface area of the self-adhesive layer 4 to the surface area of the corresponding water stopping region is 0.7 to 1, for example, set to 0.9. The arrangement can fully play the effect of the self-adhesive layer 4, and is beneficial to improving the water stopping effect of the composite back-attached self-adhesive rubber water stop belt 100.

According to the utility model, a deformation zone 12 is provided in the middle of the body part 1. As shown in fig. 1, the deformation zone 12 has a longitudinally extending groove 5, the groove 5 being on the side opposite to the normal water stopping portion 2. The deformability of the composite back-attached self-adhesive rubber water stop 100 is increased through the arrangement, so that the composite back-attached self-adhesive rubber water stop 100 is more suitable for being applied to deformation joints. In order to avoid stress concentration and ensure safe use of the composite back-stuck self-adhesive rubber water stop 100, in one embodiment, the cross-sectional shape of the groove 5 may be configured to be arc-shaped. This can avoid stress concentration, and is advantageous for extending the service life of the waterstop 100.

As shown in fig. 1, extension regions 6 extending outward in the transverse direction are respectively provided at both sides of the body portion 1 in the transverse direction, and the extension regions 6 at both sides are symmetrically distributed. The deformation zone 12 is thus located in the central region of the body portion, laterally flanked by the circumferential water stop zone 11 and the extension zone 6.

According to the utility model, the thickness of the deformation zone 12, the circumferential water stop zone 11, and the extended zone 6 are arranged to decrease progressively so that the body portion 1 is not of equal thickness. This kind of structure setting of body part 1 increases the transverse rigidity of waterstop 100, can slow down because of the waterstop self rigidity is not enough and the unilateral flagging trend that the action of gravity arouses, and the installation of the waterstop of being convenient for has reduced because of burying the lining concrete that waterstop installation problem leads to and has fallen a piece risk.

The circumferential water stop zone 11 and the extension zone 6 serve as an anchoring zone 13 during construction.

Fig. 3 is a schematic diagram of the composite back-attached self-adhesive rubber waterstop 100 according to the present invention deployed at a construction joint. As shown in fig. 3, the composite back-attached self-adhesive rubber water stop 100 is arranged at a construction joint 301, the anchoring area 13 formed by the annular water stop area 11 and the extension area 6 is arranged between the waterproof layer 201 of the primary support 200 and the secondary lining 300, and is firmly bonded with the concrete of the secondary lining 300 through the self-adhesive layer 4 on the annular water stop area 11 to form an adhesive sealing strip for blocking a water seepage channel. The normal water stop zone 21 extends along the construction joint and is firmly bonded with the concrete on the surface of the construction joint through the self-adhesive layers 4 on the two sides to form an adhesive sealing strip for blocking a water seepage channel. Therefore, a plurality of sections of adhesive sealing belts are formed in the water seepage channels to block the water seepage channels, and the water stopping effect of the composite back-attached self-adhesive rubber water stop belt 100 is obviously improved.

The composite back-pasting type self-adhesive rubber waterstop 100 provided by the utility model is convenient to center and accurately position during installation and manufacture and is convenient to construct and install by arranging the normal waterstop part 2 structure. Under the same working condition, the composite back-attached self-adhesive rubber waterstop 100 can use a waterstop specification model with a smaller width, so that the weight of the waterstop can be obviously reduced, and the transverse rigidity of the waterstop is improved. Through the height of adjustment fin 3, the width of body part 1 and setting up normal direction composite water stop structure, prolonged the compound back of the body and pasted formula self-adhesion rubber waterstop 100 around oozing the passageway length, further improve the stagnant water effect of waterstop on sticky sealed basis. The corresponding surfaces of the annular water stopping area 11 and the normal water stopping area 21 are bonded and sealed with the water seepage channel between the lining concrete through the self-adhesive layer 4 to form an adhesive sealing strip to block the water seepage channel, so that the water stopping performance is obviously improved. The body part 1 is provided with the transverse rigidity of the water stop 100 through the structure with different thicknesses, and the single-side drooping trend caused by insufficient self rigidity and gravity action of the water stop can be slowed down, so that the water stop can be conveniently installed. In addition, one waterproof measure can be realized by using the composite back-attached self-adhesive rubber water stop 100, the construction process is simplified, the comprehensive construction cost of a project is reduced, and the composite back-attached self-adhesive rubber water stop 100 avoids concrete cutting of the water stop and reduces the safety risk of the lining concrete falling block.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing examples, or that equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. Compound back of body pastes formula self-adhesion rubber waterstop, its characterized in that includes:

a body part (1) formed with symmetrically distributed circumferential water-stop zones (11);

a normal water stopping portion (2) provided in a widthwise middle of the body portion and perpendicular to the body portion, the normal water stopping portion being formed with a normal water stopping zone (21);

a plurality of convex ribs (3) arranged on the first surface of the body part, wherein the convex ribs are arranged in parallel and extend along the longitudinal direction of the body part, and the convex ribs and the normal water stopping part are positioned at the same side of the body part;

wherein, the correspondence of ring direction stagnant water district is equipped with one side surface of fin with the both sides surface of normal direction stagnant water district all is provided with from viscose layer (4).

2. The composite back-adhered self-adhesive rubber waterstop according to claim 1, characterized in that a deformation zone (12) is provided in the middle of the body portion, the deformation zone having a longitudinally extending groove (5) on the opposite side of the normal waterstop portion.

3. The composite back-attachment type self-adhesive rubber water stop according to claim 2, wherein extension regions (6) are respectively provided on both lateral sides of the body portion, and the thicknesses of the deformation region, the circumferential water stop region and the extension regions are set to decrease progressively.

4. The composite back-stuck self-adhesive rubber water stop according to any one of claims 1 to 3, wherein the self-adhesive layer is formed using a non-asphalt high-molecular self-adhesive, and a thickness of the self-adhesive layer is set in a range of 2 to 20 mm.

5. The composite back-on self-adhesive rubber waterstop according to claim 1, wherein the vertical extension height of the normal waterstop portion is less than the lateral width of the body portion.

6. The composite back-stuck self-adhesive rubber waterstop according to claim 1 or 5, wherein a ratio of the thickness of the normal waterstop portion to the thickness of the body portion is 1 to 3.

7. The composite back-on self-adhesive rubber waterstop according to claim 1 or 5, wherein the vertical extension height of the normal waterstop portion is greater than the height of the convex rib.

8. The composite back-stuck self-adhesive rubber water stop according to any one of claims 1 to 3, wherein the thickness of the rib is set to be larger than the thickness of the body portion.

9. The composite back-stuck self-adhesive rubber waterstop according to claim 1, wherein the free end of the normal waterstop portion is configured to be equal in width or arranged to be gradually increased from the axial inner side to the free end, thereby forming an inverted conical surface.

10. The composite back-to-back self-adhesive rubber waterstop according to claim 1 or 5, wherein a junction of the normal waterstop portion and the body portion forms a rounded transition.

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