Waterproof coiled material for expansion joint

By designing an adhesive layer and connecting mechanism on the waterproof membrane, the problem of the membrane not being able to be pre-shaped before construction is solved, enabling accurate positioning of the membrane and uniform application of adhesive, thus improving construction efficiency and bonding effect.

CN223991462UActive Publication Date: 2026-03-13LONGYAN ZHONGYI FOOD & DRUG PACKAGE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing expansion joint waterproof membranes cannot be pre-shaped before installation, leading to misalignment and uneven application of adhesive, which affects the bonding effect.

Method used

A waterproof membrane with an adhesive layer and a connecting mechanism was designed. The adhesive layer has through holes for storing and evenly applying adhesive, and the connecting mechanism is used to fix the position of the membrane and connect adjacent membranes through inserts and slots to ensure accurate positioning.

Benefits of technology

It enables accurate positioning of the roll material and uniform application of adhesive during construction, improving construction efficiency and bonding effect, and enhancing the tight contact between the roll material and the substrate.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223991462U_ABST
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Abstract

The utility model relates to the field of waterproof coiled materials, in particular to an expansion joint waterproof coiled material which comprises a coiled material body, a bonding layer, a bonding assembly and a connecting mechanism. The bonding assembly is arranged on the inner side of the bonding layer; the connecting mechanism is arranged at the end of the coiled material body. Through the arrangement of the bonding assembly and the connecting mechanism, the two adjacent coiled material bodies are connected together through the connection of the inserting blocks and the inserting grooves, then the positions of the coiled material bodies are pre-shaped, and then a bonding agent is introduced into the bonding layer to be evenly smeared. In this way, it can be guaranteed that the coiled material can be accurately and rapidly positioned at the needed position during laying, the adjusting time in the construction process is shortened, the bonding process can be more evenly and rapidly completed by smearing a bonding agent through the evenly-distributed through holes, the overall construction efficiency is improved, contact between the coiled material body and a base layer is tighter, and the service life of the coiled material is prolonged. And the binder is helpful to play a better role.
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Description

Technical Field

[0001] This utility model relates to the field of waterproof membranes, and more particularly to a waterproof membrane for expansion joints. Background Technology

[0002] In daily life, buildings that appear to be connected are actually separated into individual buildings. Expansion joints with a certain spacing are reserved between adjacent buildings. This is mainly to prevent uneven settlement of the building foundation caused by excessive building length. There are national mandatory requirements that an expansion joint must be installed if the building length exceeds a certain number of meters.

[0003] Chinese patent CN208088676U discloses a waterproof membrane for expansion joints, comprising a membrane body including a "V"-shaped groove and two flaps. The two flaps are respectively connected to the two side walls of the "V"-shaped groove. An adhesive layer, the same size as the flap, is provided on both the upper and lower surfaces of the flaps and is filled with glue. The "V"-shaped groove is embedded into the gap, with the lower surface of the flaps connected to the side walls of the "V"-shaped groove close to the roof. The adhesive layer is punctured, allowing the glue to overflow. The overflowing glue from the adhesive layer on the lower surface of the flaps remains on the roof, and after it dries, it firmly bonds the waterproof membrane to the roof. After the glue overflows from the adhesive layer on the upper surface of the flaps, conventional waterproof membrane can be glued onto the flaps.

[0004] However, the above-mentioned publicly available solutions have the following shortcomings: the existing expansion joint waterproof membrane cannot be pre-shaped before applying the adhesive, which causes the membrane to shift during the adhesive application process, affecting the application. At the same time, the adhesive is applied unevenly between the adhesive layer and the base layer, affecting the bonding effect. Utility Model Content

[0005] The purpose of this invention is to address the problem in the prior art that it is impossible to pre-shape the membrane before installation and to apply the adhesive evenly, and to propose a waterproof membrane for expansion joints.

[0006] The technical solution of this utility model is: a waterproof membrane for expansion joints, comprising a membrane body; and further comprising:

[0007] The adhesive layer is located on the back of the roll material. Multiple through holes are arranged at equal intervals on the adhesive layer. The interior of the adhesive layer is hollow to store and introduce adhesive, and to discharge the adhesive outward through the through holes, thereby connecting the adhesive layer and the building substrate together.

[0008] An adhesive assembly is disposed on the inner side of the adhesive layer and is used to simultaneously apply the adhesive applied to the adhesive layer onto the surface of the substrate.

[0009] And a connecting mechanism, which is located at the end of the roll body and is used to connect adjacent roll bodies together.

[0010] Preferably, a surface layer is provided on the side of the roll body away from the adhesive layer, and the surface layer and the roll body have the same volume.

[0011] Preferably, the bonding assembly includes an injection tube, a distribution box, and a connecting tube;

[0012] The distribution box is located inside the adhesive layer, the injection tube is located at the top of the distribution box, and the connecting tube is located at the bottom of the distribution box. A squeezing plate is slidably arranged inside the distribution box, a push plate is arranged on the side of the squeezing plate, and a sealing plate is arranged on the side of the push plate to deliver the adhesive into the box through the injection tube.

[0013] Preferably, the upper end of the connecting pipe is connected to the bottom of the previous distribution box, and the lower end is connected to the top of the next distribution box. Multiple distribution boxes are arranged at equal intervals within the adhesive layer.

[0014] Preferably, both the connecting tube and the injection tube are made of rubber, and the connecting tube and the injection tube have the same diameter.

[0015] Preferably, the connecting mechanism includes a winding component and a splicing component;

[0016] The winding assembly is located at the end of the roll body and is used to wind up the roll body.

[0017] The splicing assembly is located at the end of the winding assembly and is used to splice adjacent roll bodies together.

[0018] Preferably, the winding assembly includes a first connecting tube, a second connecting tube, a rotating shaft, and a connecting block;

[0019] Connecting cylinder one is located at the end of the roll body, rotating shaft is rotatably located inside connecting cylinder one, connecting block is located at the end of rotating shaft, pressing rod is located at the end of connecting block away from rotating shaft, insert rod is located on the outside of connecting cylinder one, connecting cylinder two is located at the end of roll body away from connecting cylinder one, and connecting groove is located on connecting cylinder two.

[0020] Preferably, the splicing components include slots, card slots, and inserts;

[0021] The slot is located at the end of the connecting cylinder one, the slot is located inside the slot, the insert is located at the end of the connecting cylinder one away from the slot, the insert is located inside the insert is a fixing block, the fixing block is located on the side is a telescopic tube, the telescopic tube is located outside the telescopic tube is a spring, and the telescopic tube is located at the end away from the fixing block is a locking block.

[0022] Compared with the prior art, this utility model has the following beneficial technical effects: By setting up the bonding components and connecting mechanisms, two adjacent roll bodies are first connected together by connecting the inserts and slots, thereby pre-shaping the position of the roll body. Then, the adhesive is introduced into the bonding layer for uniform application. This ensures that the roll body can be accurately and quickly positioned in the required position during laying, reducing the adjustment time during construction. By applying the adhesive through the evenly distributed through holes, the bonding process can be completed more evenly and quickly, improving the overall construction efficiency. This makes the contact between the roll body and the base layer tighter, which helps the adhesive to play a better role. At the same time, the roll body can be rolled up by the inserts and connecting slots, improving the portability of the roll body. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of the rear structure;

[0025] Figure 3 This is a schematic diagram of the adhesive assembly.

[0026] Figure 4 This is a schematic diagram of the connecting mechanism;

[0027] Figure 5 This is a schematic diagram of the rear structure of the connecting mechanism;

[0028] Figure 6 for Figure 5 An enlarged diagram of A in the diagram.

[0029] Reference numerals in the attached drawings: 1. Roll material body; 2. Surface roll material; 3. Adhesive layer; 401. Diversion box; 402. Injection tube; 403. Connecting tube; 404. Extrusion plate; 405. Push plate; 406. Sealing plate; 501. Connecting cylinder one; 502. Rotating shaft; 503. Connecting block; 504. Slot; 505. Slot; 506. Insert rod; 507. Pressing rod; 508. Insert block; 509. Fixing block; 510. Telescopic tube; 511. Spring; 512. Slot; 513. Connecting cylinder two; 514. Connecting groove. Detailed Implementation

[0030] Example 1

[0031] like Figures 1-3 As shown, the present invention proposes a waterproof membrane for expansion joints, comprising a membrane body 1, an adhesive layer 3, an adhesive assembly, and a connecting mechanism:

[0032] The adhesive layer 3 is disposed on the back of the roll body 1. Multiple through holes are arranged at equal intervals on the adhesive layer 3. The interior of the adhesive layer 3 is hollow to store the adhesive and discharge the adhesive outward through the through holes, thereby connecting the adhesive layer 3 and the building base layer together.

[0033] The adhesive component is disposed on the inner side of the adhesive layer 3 and is used to simultaneously apply the adhesive placed in the adhesive layer 3 to the surface of the substrate.

[0034] The connecting mechanism is located at the end of the roll body 1 and is used to connect adjacent roll bodies 1 together.

[0035] A surface layer 2 is provided on the side of the roll body 1 away from the adhesive layer 3. The surface layer 2 has the same volume as the roll body 1 and is used to completely cover the roll body 1 and guide the flowing water downwards for drainage.

[0036] The bonding assembly includes an injection pipe 402, a distribution box 401, and a connecting pipe 403. The distribution box 401 is located inside the bonding layer 3, the injection pipe 402 is located at the top of the distribution box 401, and the connecting pipe 403 is located at the bottom of the distribution box 401. An extrusion plate 404 is slidably arranged inside the distribution box 401. A push plate 405 is arranged on the side of the extrusion plate 404, and a sealing plate 406 is arranged on the side of the push plate 405. Adhesive is delivered into the interior through the injection pipe 402. The adhesive flows through the injection pipe 402 into the top distribution box 401, and then flows through the connecting pipe 403 into all the distribution boxes 401. Pressing the push plate 405 can move the extrusion plate 404. When the extrusion plate 404 moves, it squeezes the adhesive in the distribution box 401, thereby squeezing all the adhesive through the through holes onto the surface of the building substrate. The spacing of each through hole is the same, which facilitates the even application of adhesive to the building substrate. The upper end of the connecting pipe 403 is connected to the bottom of the previous distribution box 401, and the lower end is connected to the top of the next distribution box 401. Multiple distribution boxes 401 are arranged at equal intervals within the adhesive layer 3. Both the connecting pipe 403 and the injection pipe 402 are made of rubber, and the diameters of the connecting pipe 403 and the injection pipe 402 are the same. The connecting mechanism will not affect the winding of the waterproof membrane when it is being wound up.

[0037] Example 2

[0038] like Figures 4-5 As shown, this utility model proposes a waterproof membrane for expansion joints. Compared with Embodiment 1, this embodiment details the structure of the connecting mechanism.

[0039] The connecting mechanism includes a winding assembly and a splicing assembly. The winding assembly is located at the end of the roll body 1 and is used to wind up the roll body 1. The splicing assembly is located at the end of the winding assembly and is used to splice adjacent roll bodies 1 together. The winding assembly includes a first connecting cylinder 501, a second connecting cylinder 513, a rotating shaft 502, and a connecting block 503. The first connecting cylinder 501 is located at the end of the roll body 1. The rotating shaft 502 is rotatably located inside the first connecting cylinder 501. The connecting block 503 is located at the end of the rotating shaft 502. A pressing rod 507 is provided at the end of the connecting block 503 away from the rotating shaft 502. An insert rod 506 is provided on the outside of the first connecting cylinder 501. The second connecting cylinder 513 is located at the end of the roll body 1 away from the first connecting cylinder 501. The 513 is provided with a connecting groove 514. Rotating the rotating shaft 502 can drive the pressing rod 507 to rotate through the connecting block 503, thereby rotating the pressing rod 507 to different sides of the roll body 1. After pressing the pressing rod 507 to one side, the first connecting cylinder 501 is rotated, thereby winding up the roll body 1. After winding, the insertion rod 506 on the first connecting cylinder 501 is exactly aligned with the connecting groove 514 on the second connecting cylinder 513. The insertion rod 506 and the connecting groove 514 can be connected together for installation.

[0040] Example 3

[0041] like Figures 5-6 As shown, this utility model proposes a waterproof membrane for expansion joints. Compared with Embodiment 1, this embodiment details the structure of the splicing components.

[0042] The splicing assembly includes a slot 504, a groove 505, and an insert block 508. The slot 504 is located at the end of the connecting cylinder 501, the groove 505 is located inside the slot 504, and the insert block 508 is located at the end of the connecting cylinder 501 furthest from the slot 504. A fixing block 509 is located inside the insert block 508, a telescopic tube 510 is located on the side of the fixing block 509, and a spring 511 is located on the outside of the telescopic tube 510. The telescopic tube 510 is located furthest from the fixing block 504. One end of 09 is provided with a locking block 512, and the end of the connecting cylinder 2 513 is also provided with a splicing component. The two adjacent roll bodies 1 are aligned and connected together. The insert block 508 of one of them is inserted into the slot 504 of the other. The locking block 512 is semi-circular, so it will retract into the insert block 508 during the splicing process. When the locking block 512 moves to the slot 505, the locking block 512 is inserted into the slot 505 under the action of the spring 511, thus completing the installation.

[0043] In summary, when using this utility model, if it is necessary to transfer and carry the roll body 1, rotating the rotating shaft 502 drives the pressing rod 507 to rotate through the connecting block 503, thereby rotating the pressing rod 507 to different sides of the roll body 1. After pressing the pressing rod 507 against one side, rotating the connecting cylinder 1 501, thereby winding up the roll body 1. After winding, the insertion rod 506 on the connecting cylinder 1 501 is aligned with the connecting groove 514 on the connecting cylinder 2 513, thus enabling installation. After carrying the roll body 1 to the work site, it is disassembled, and then the adhesive layer 3 is placed aligned with the building base. The adhesive is then circulated through the injection pipe 402 into the top distribution box 401, and then through the connecting... The pipe 403 flows into all the distribution boxes 401. Pressing the push plate 405 drives the extrusion plate 404 to move. When the extrusion plate 404 moves, it extrudes the adhesive in the distribution box 401, thereby extruding the adhesive through the through holes onto the surface of the building base. The spacing of each through hole is the same, so that the adhesive is evenly applied to the building base. After the application is completed, two adjacent roll bodies 1 are aligned and connected together. The insert 508 of one of them is inserted into the slot 504 of the other. When the insert 512 moves to the slot 505, it is inserted into the slot 505 under the action of the spring 511, thus completing the installation. The surface roll 2 draws the water flowing onto the roll downward, thereby waterproofing.

[0044] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An expansion joint waterproofing membrane comprising a membrane body (1); characterized in that, Also include: The adhesive layer (3) is arranged on the back of the roll body (1), a plurality of through holes are arranged on the adhesive layer (3) at equal intervals, the inside of the adhesive layer (3) is hollow, used for storing the introduced adhesive and discharging the adhesive outward through the through holes, thereby connecting the adhesive layer (3) and the building base together; The adhesive assembly is arranged on the inside of the adhesive layer (3) and is used for synchronously applying the adhesive put into the adhesive layer (3) to the surface of the base; And the connecting mechanism is arranged on the end of the roll body (1) and is used for connecting the adjacent roll bodies (1) together, so that all the roll bodies are combined as a whole for shaping and auxiliary bonding.

2. The expansion joint waterproofing membrane of claim 1, wherein, The side of the roll body (1) away from the adhesive layer (3) is provided with a surface layer roll (2), and the volume of the surface layer roll (2) is the same as that of the roll body (1).

3. The expansion joint waterproofing membrane of claim 1, wherein, The adhesive assembly comprises a liquid injection pipe (402), a shunt box (401) and a connecting pipe (403); The shunt box (401) is arranged on the inside of the adhesive layer (3), the liquid injection pipe (402) is arranged on the top of the shunt box (401), the connecting pipe (403) is arranged on the bottom of the shunt box (401), the inside of the shunt box (401) is slidably provided with an extrusion plate (404), the side of the extrusion plate (404) is provided with a push plate (405), the side of the push plate (405) is provided with a sealing plate (406), and the adhesive is transported to the inside through the liquid injection pipe (402).

4. The expansion joint waterproofing membrane of claim 3, wherein, The upper end of the connecting pipe (403) is connected to the bottom of the upper shunt box (401), the lower end is connected to the top of the lower shunt box (401), and a plurality of shunt boxes (401) are arranged at equal intervals in the adhesive layer (3).

5. The expansion joint waterproofing membrane of claim 3, wherein, The connecting pipe (403) and the liquid injection pipe (402) are both made of rubber material, and the diameters of the connecting pipe (403) and the liquid injection pipe (402) are the same.

6. The expansion joint waterproofing membrane of claim 1, wherein, The connecting mechanism comprises a winding assembly and a splicing assembly; The winding assembly is arranged on the end of the roll body (1) and is used for winding the roll body (1); The splicing assembly is arranged on the end of the winding assembly and is used for splicing the adjacent roll bodies (1) together.

7. The expansion joint waterproofing membrane of claim 6, wherein, The winding assembly comprises a connecting cylinder one (501), a connecting cylinder two (513), a rotating shaft (502) and a connecting block (503); The connecting cylinder one (501) is arranged on the end of the roll body (1), the rotating shaft (502) is rotatably arranged on the inside of the connecting cylinder one (501), the connecting block (503) is arranged on the end of the rotating shaft (502), the end of the connecting block (503) away from the rotating shaft (502) is provided with a pressing rod (507), the outside of the connecting cylinder one (501) is provided with a plug rod (506), the connecting cylinder two (513) is arranged on the end of the roll body (1) away from the connecting cylinder one (501), and the connecting cylinder two (513) is provided with a connecting groove (514).

8. The expansion joint waterproofing membrane of claim 7, wherein, The splicing assembly comprises a plug groove (504), a clamping groove (505) and a plug block (508); The slot (504) is arranged at the end of the connecting cylinder (501), the clamping slot (505) is arranged at the inner side of the slot (504), the plug block (508) is arranged at the end of the connecting cylinder (501) away from the slot (504), the inner side of the plug block (508) is provided with the fixing block (509), the side surface of the fixing block (509) is provided with the telescopic pipe (510), the outer side of the telescopic pipe (510) is provided with the spring (511), and the end of the telescopic pipe (510) away from the fixing block (509) is provided with the clamping block (512).

Citation Information

Patent Citations

  • Expansion joint waterproofing membrane

    CN208088676U