Waterproof heat-preservation plugging structure for deformation joint
By combining self-adhesive micro-expansion waterproof and thermal insulation roll modules and cover plates, the problems of uneven filling of thermal insulation material and poor waterproofing effect in expansion joints are solved, achieving uniform insulation and enhanced waterproofing, and simplifying the construction process.
Patent Information
- Application Number
- CN202520073740.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-13
AI Technical Summary
In the existing technology, during the construction of expansion joints, the insulation material is not filled evenly, resulting in poor insulation effect, and the waterstop is prone to aging and leakage.
The self-adhesive micro-expansion waterproof and thermal insulation membrane module is adopted. The insulation material is filled into the module in advance, and the inner and outer back-adhesive micro-expansion waterproof membrane is set on both sides of the expansion joint. Combined with the cover plate and bolt fixation, the uniformity of the insulation material and the waterproof effect are ensured.
The insulation material was evenly filled, ensuring the insulation effect at every point. The waterproof effect at the expansion joint was enhanced by internal bonding and external tight fixing, which simplified the construction process and reduced the difficulty of on-site operation.
Smart Images
Figure CN223766975U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of building engineering, specifically relates to a deformation joint waterproof heat preservation plugging structure. BACKGROUND
[0002] The statements in this section merely provide background information related to the utility model and do not necessarily constitute prior art.
[0003] In prior art, in view of the problems that temperature change, uneven settlement and earthquake and other factors will affect the use and safety of buildings, the wall body is disconnected in advance at the deformation sensitive part and is divided into several relatively independent units to ensure that the building has sufficient deformation space, and this gap is called deformation joint.
[0004] In existing norms, the plugging method of deformation joint is mostly as follows: filling the gap with thermal insulation material, then embedding the water stop belt, and finally covering the protection shield.
[0005] The above method has the following problems: limited by the narrow width and high height of the deformation joint, when the thermal insulation material is inserted into the deformation joint during construction, the thermal insulation material is prone to uneven and non-dense plugging, resulting in poor thermal insulation effect; and the water stop belt is prone to aging and causes water leakage in the deformation joint. UTILITY MODEL CONTENTS
[0006] In view of the above problems, the utility model provides a deformation joint waterproof heat preservation plugging structure, which fills the thermal insulation material in advance in the self-adhesive micro-expansion waterproof thermal insulation coiled material module, can ensure the uniformity of the thermal insulation material filling and ensure the thermal insulation effect; the inner and outer two layers of the self-adhesive micro-expansion waterproof thermal insulation coiled material module adopt back-adhesive micro-expansion waterproof coiled material, and extend on both sides of the deformation joint opening, and effectively strengthen the waterproof effect of the deformation joint through internal adhesion and external extension and close fixation.
[0007] To achieve the above object, the utility model adopts the following technical scheme:
[0008] A deformation joint waterproof heat preservation plugging structure, comprising a deformation joint, a self-adhesive micro-expansion waterproof thermal insulation coiled material module arranged on the inner side and both sides of the opening of the deformation joint; the self-adhesive micro-expansion waterproof thermal insulation coiled material module comprises an outer back-adhesive micro-expansion waterproof coiled material, and a thermal insulation layer is filled between the outer back-adhesive micro-expansion waterproof coiled material and the inner back-adhesive micro-expansion waterproof coiled material;
[0009] On the wall body on both sides of the deformation joint opening, the cover plate is fixed on the self-adhesive micro-expansion waterproof thermal insulation coiled material module and the wall body through bolts, and weather-resistant glue is applied outside the junction of the cover plate and the self-adhesive micro-expansion waterproof thermal insulation coiled material module to seal.
[0010] Preferably, the outer back-adhesive micro-expansion waterproof membrane is made into a deep U-groove, and the width of the outer wall of the deep U-groove is equal to the width of the expansion joint.
[0011] Preferably, the opening of the deep U-groove extends into a D1 section of a set length on both sides, and the outer wall of the deep U-groove is the back membrane side of the outer back-adhesive micro-expansion waterproof membrane.
[0012] Preferably, the inner back-adhesive micro-expansion waterproof membrane is made into a shallow U-shaped groove, the width of the outer wall of the shallow U-shaped groove is equal to the width of the inner wall of the deep U-shaped groove; a D2 segment of a set length extends from both sides of the opening of the shallow U-shaped groove, the length of the D2 segment is greater than the length of the D1 segment.
[0013] Preferably, the shallow U-shaped groove is disposed at the opening of the deep U-shaped groove and is bonded and fixed, forming a filling space between the shallow U-shaped groove and the deep U-shaped groove, and an insulation layer is filled in the filling space.
[0014] Preferably, the insulation layer is made of vacuum insulation board or Class A insulation material.
[0015] Preferably, the cover plate includes a base, the base is connected to an intermediate plate, and the top plate is connected to the base, with the intermediate plate sandwiched between the top plate and the base.
[0016] Preferably, one end of the base is fixedly connected to the first slot plate and the second slot plate, and the other end is provided with a groove block, one end of which is provided on both sides of the expansion joint opening; protrusions are symmetrically provided on both sides of the center line of the bottom surface of the middle plate; one end of the top plate is provided with the first hook plate and the second hook plate, and the other end is straight.
[0017] Preferably, the first hook plate and the second hook plate are respectively fastened to the first slot plate and the second slot plate, and the width between the first slot plate and the second slot plate is equal to the width of the second hook plate.
[0018] Preferably, the self-adhesive micro-expansion waterproof and thermal insulation roll module is prefabricated.
[0019] Compared with the prior art, the advantages and positive effects of this utility model are:
[0020] This utility model relates to prefabricated self-adhesive micro-expansion waterproof and thermal insulation roll modules. The insulation material is pre-filled into these modules, ensuring uniform and consistent material distribution and guaranteeing optimal insulation depth and thickness. Furthermore, during on-site construction, the self-adhesive micro-expansion waterproof and thermal insulation roll modules can be cut to the length of the expansion joint, and the joint can be filled by bolting the cover plate, significantly simplifying the work process and reducing on-site operational difficulty.
[0021] In this utility model, both the inner and outer layers of the self-adhesive micro-expansion waterproof and thermal insulation roll module are made of back-adhesive micro-expansion waterproof roll material, which extends to both sides of the expansion joint opening. The waterproof effect at the expansion joint is effectively enhanced by internal bonding and external tight fixing. Attached Figure Description
[0022] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.
[0023] Figure 1 This is a schematic diagram of the planar expansion joint sealing structure according to an embodiment of the present invention;
[0024] Figure 2 This is a schematic diagram of the corner expansion joint sealing structure according to an embodiment of the present invention;
[0025] Figure 3 This is an embodiment of the present utility model. Figure 1 Sectional view of AA in the middle;
[0026] In the picture:
[0027] 1. Expansion joint; 2. Self-adhesive micro-expansion waterproof and thermal insulation membrane module; 21. Outer back adhesive micro-expansion waterproof membrane; 22. Thermal insulation layer; 23. Inner back adhesive micro-expansion waterproof membrane; 3. Cover plate; 31. Base; 32. Middle plate; 33. Top plate; 4. Bolts; 5. Weather-resistant adhesive. Detailed Implementation
[0028] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0029] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a waterproof and heat-insulating sealing structure for expansion joints, as shown below. Figure 1 , Figure 2 As shown, it includes expansion joint 1, which is mainly divided into two types, one of which is as follows: Figure 1 The planar expansion joint shown is one type, such as... Figure 2 The corner expansion joint shown. Self-adhesive micro-expansion waterproof and thermal insulation roll modules 2 are installed on the inner side of expansion joint 1 and on both sides of the opening. Cover plates 3 are also installed on both sides of the opening of expansion joint 1.
[0030] Specifically, such as Figure 1As shown, the self-adhesive micro-expansion waterproof and thermal insulation membrane module 2 includes an outer-backed adhesive micro-expansion waterproof membrane 21. The outer-backed adhesive micro-expansion waterproof membrane 21 is made into a deep U-groove. The width of the outer wall of the deep U-groove is equal to the width of the expansion joint 1, ensuring that it can be inserted into the inside of the expansion joint 1. A set length D1 segment extends from both sides of the opening of the deep U-groove. The length of the D1 segment is not less than 100mm. In this embodiment, the length of the D1 segment is 100mm, which is used to fix it to the wall on both sides of the opening of the expansion joint 1. It should be noted that the outer wall of the deep U-groove is the backing film side of the outer-backed adhesive micro-expansion waterproof membrane 21. By tearing off the backing film to expose the adhesive surface of the outer-backed adhesive micro-expansion waterproof membrane 21, the outer-backed adhesive micro-expansion waterproof membrane 21 can be bonded to the wall.
[0031] like Figure 1 As shown, the self-adhesive micro-expansion waterproof and thermal insulation membrane module 2 also includes an inner back-adhesive micro-expansion waterproof membrane 23. The inner back-adhesive micro-expansion waterproof membrane 23 is made into a shallow U-shaped groove, and the width of the outer wall of the shallow U-shaped groove is equal to the width of the inner wall of the deep U-shaped groove. A set length of D2 segment extends from both sides of the opening of the shallow U-shaped groove. The length of the D2 segment must not be less than 100mm, and the length of the D2 segment is greater than at least twice the length of the D1 segment. In this embodiment, the length of the D2 segment is 200mm. The outer wall of the shallow U-shaped groove is the backing film side of the inner back-adhesive micro-expansion waterproof membrane 23. Removing the backing film exposes the adhesive surface of the inner back-adhesive micro-expansion waterproof membrane 23.
[0032] like Figure 1 , Figure 2 , Figure 3 As shown, the shallow U-shaped groove needs to be bonded and fixed at the opening of the deep U-shaped groove, forming a filling space between the shallow and deep U-shaped grooves; an insulation layer 22 is filled in this filling space. In this embodiment, to ensure the insulation effect of the insulation layer 22, it is made of vacuum insulation board or Class A insulation material.
[0033] Understandably, the outer wall of the outer back-adhesive micro-expansion waterproof membrane 21 retains a backing membrane to protect the bonding surface. Removing the backing membrane allows it to be bonded to the inside of the expansion joint 1 and the walls on both sides of the opening. When the inner back-adhesive micro-expansion waterproof membrane 23 is bonded to the outer back-adhesive micro-expansion waterproof membrane 21 (i.e., when the shallow U-groove is bonded to the deep U-groove), the overlapping portions of the extension lengths on both sides of the shallow and deep U-grooves will also be bonded. Since the length of segment D2 is greater than the length of segment D1, the non-overlapping portions of the extension lengths on both sides of the shallow and deep U-grooves (i.e., the non-overlapping portions) also retain a backing membrane. During construction, this membrane is bonded to the walls on both sides of the opening of the expansion joint 1, covering the connection between the inner back-adhesive micro-expansion waterproof membrane 23 and the outer back-adhesive micro-expansion waterproof membrane 21 to prevent water seepage and enhance the waterproofing effect.
[0034] Understandably, the self-adhesive micro-expansion waterproof and thermal insulation roll module 2 is prefabricated. Insulation material can be filled into the deep U-groove first, and then the shallow U-groove can be bonded to the opening of the deep U-groove; alternatively, the shallow U-groove can be bonded to the opening of the deep U-groove first, and then insulation material can be filled between the two. In the self-adhesive micro-expansion waterproof and thermal insulation roll module, the insulation material is evenly and uniformly distributed, ensuring the depth and thickness of the insulation material filling and guaranteeing the insulation effect at every point.
[0035] The pre-made self-adhesive micro-expansion waterproof and thermal insulation roll module 2 is cut to the length of the expansion joint to be sealed and then inserted into the expansion joint 1. The internal insulation layer 22 of the self-adhesive micro-expansion waterproof and thermal insulation roll module 2 is pre-filled densely, which can avoid the problem of uneven and non-dense filling of insulation material caused by stuffing insulation material into the expansion joint on site in traditional construction.
[0036] The use of micro-expansion waterproof membrane can enhance the waterproof effect by slightly expanding when exposed to water. When the outer-backed micro-expansion waterproof membrane 21 is inside the expansion joint 1, it will not only expand to enhance the waterproof effect when exposed to water, but also exert a squeezing effect on the inner insulation layer, making the insulation material more compact.
[0037] like Figure 1 , Figure 2 As shown, the cover plate 3 includes a base 31, which is connected to an intermediate plate 32. A top plate 33 is connected to the base 31, and the intermediate plate 32 is sandwiched between the top plate 33 and the base 31. The cover plate 3 has two structures, one for sealing planar expansion joints and the other for sealing corner expansion joints.
[0038] like Figure 1 As shown, the cover plate for sealing planar expansion joints includes two bases 31, one intermediate plate 32, and two top plates 33. Specifically, one end of the base 31 is fixedly connected to a first slot plate and a second slot plate, with the first slot plate being closer to the end. The slots of both the first and second slot plates face outwards. The other end of the base 31 is provided with a recessed block, which has a groove. The end with the recessed block is located on both sides of the opening of the expansion joint 1. Hooks are provided at both ends of the bottom surface of the intermediate plate 32. Protrusions are symmetrically provided on both sides of the center line of the bottom surface of the intermediate plate 32 according to the width of the expansion joint. One end of the top plate 33 is provided with a first hook plate and a second hook plate, with the first hook plate being closer to the end. The hooks of both the first and second hook plates face inwards. The other end of the top plate 33 is straight.
[0039] Place the two protrusions of the middle plate 32 on both sides of the opening of the expansion joint 1 and in the groove of the base 31. Then, set a top plate 33 on both sides of the top of the middle plate 32, so that the first hook plate and the second hook plate of the top plate 33 are respectively fastened to the first slot plate and the second slot plate of the base 31 to form a whole.
[0040] like Figure 1 , Figure 2 As shown, the width between the first and second slot plates is equal to the width of the second hook plate; the hook of the second hook plate is engaged with the second slot plate, and the hook of the first hook plate is engaged with the first slot plate. After the top plate and the base are fastened together, when the top plate is pulled up, the second hook plate can be prevented from disengaging from the second slot plate, thus ensuring the stability of the fastening.
[0041] like Figure 2 As shown, the two walls on either side of the corner expansion joint opening form a right angle. The cover plate used for sealing the corner expansion joint includes a base 31, an intermediate plate 32, and a top plate 33. The intermediate plate 32 only needs to be provided with a protrusion, and the intermediate plate 32 is changed from a flat plate to an L-shaped plate. The base 31 is still set on one of the walls by bolts 4, while the side of the intermediate plate 32 without the protrusion is directly connected to the other wall by bolts 4, and the side with the protrusion is still connected to the base 31 and the top plate 33.
[0042] like Figure 1 , Figure 2 As shown, after the self-adhesive micro-expansion waterproof and thermal insulation roll module 2 is installed, the base 31 or intermediate plate 32 of the cover plate 3 is fixed to the wall on both sides of the opening of the expansion joint 1 using bolts 4. Then, weather-resistant sealant 5 is applied to the joint between the cover plate 3 and the self-adhesive micro-expansion waterproof and thermal insulation roll module 2 to further enhance waterproofing. Figure 1 As shown, finally install the middle plate and top plate, as follows. Figure 2 As shown, simply install the top plate.
[0043] It is understandable that, such as Figure 1 , Figure 2 As shown, when the cover plate 3 covers the outside of the self-adhesive micro-expansion waterproof and thermal insulation roll module 2 and the expansion joint 1, its width is greater than the sum of the length of twice the D2 segment and the width of the expansion joint 1. Therefore, there is still a gap between the cover plate 3 and the wall. The gap is sealed with weather-resistant adhesive 5, which can further enhance waterproofing and also protect the self-adhesive micro-expansion waterproof and thermal insulation roll module 2 together with the cover plate 3.
[0044] In this embodiment, bolt 4 is a plastic expansion anchor bolt, with a horizontal spacing of no more than 300mm and a vertical spacing of no more than 600mm for fixing.
[0045] Installation steps:
[0046] Before construction, wet the walls on both sides inside expansion joint 1 (to remove dust and impurities, making it easier to bond the self-adhesive micro-expansion waterproof and thermal insulation roll module);
[0047] When there are no obvious water stains on the wall, cut the self-adhesive micro-expansion waterproof and thermal insulation roll module 2 to a length that is easy to construct according to the site conditions. First, peel off the back film of the outer back-adhesive micro-expansion waterproof roll 21, and then embed the self-adhesive micro-expansion waterproof and thermal insulation roll module 2 into the expansion joint 1.
[0048] Next, after aligning the self-adhesive micro-expansion waterproof and thermal insulation membrane module 2 at the top and bottom (when installed on the wall) or front and back (when installed on the roof), peel off the backing film of the back-adhesive micro-expansion waterproof membrane 23 on the inner side of the extended portion on both sides of the expansion joint 1 opening and stick it to the wall on both sides of the expansion joint 1 opening.
[0049] Then, the base or intermediate plate is fixed on the waterproof membrane extending on both sides of the opening of the expansion joint 1 by bolt 4;
[0050] Apply 5g of weather-resistant sealant to the joint between the cover plate and the waterproof membrane;
[0051] Finally, install the middle and top plates of the cover plate.
[0052] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.
Claims
1. A deformed joint waterproof thermal insulation plugging structure, characterized in that, The self-adhesive micro-expansion waterproof and thermal insulation coiled material module is arranged on both sides of the deformation joint and the opening. The cover plate is fixed on the self-adhesive micro-expansion waterproof and thermal insulation coiled material module and the wall through bolts, and weather-resistant glue is applied to seal the joint between the cover plate and the self-adhesive micro-expansion waterproof and thermal insulation coiled material module.
2. A deformed joint waterproof thermal insulation plugging structure according to claim 1, characterized in that, The outer back-adhesive micro-expansion waterproof coiled material is made into a deep U-shaped groove body, and the outer wall width of the deep U-shaped groove body is equal to the width of the deformation joint.
3. A deformed joint waterproof thermal insulation plugging structure according to claim 2, characterized in that, The deep U-shaped groove body extends a D1 section with a set length on both sides of the opening, and the outer wall of the deep U-shaped groove body is the back film side of the outer back-adhesive micro-expansion waterproof coiled material.
4. A deformed joint waterproof thermal insulation plugging structure according to claim 3, characterized in that, The inner back-adhesive micro-expansion waterproof coiled material is made into a shallow U-shaped groove body, and the outer wall width of the shallow U-shaped groove body is equal to the inner wall width of the deep U-shaped groove body.
5. A deformed joint waterproof thermal insulation plugging structure according to claim 4, characterized in that, The shallow U-shaped groove body is arranged at the opening of the deep U-shaped groove body and is fixed by bonding, and a filling space is formed between the shallow U-shaped groove body and the deep U-shaped groove body, and the filling space is filled with a thermal insulation layer.
6. A deformed joint waterproof thermal insulation plugging structure according to claim 1, characterized in that, The thermal insulation layer is made of vacuum insulation panels or A-level thermal insulation materials.
7. A deformed joint waterproof thermal insulation plugging structure according to claim 1, characterized in that, The cover plate includes a base, a middle plate connected to the base, and a top plate connected to the base to clamp the middle plate between the top plate and the base.
8. A deformed joint waterproof thermal insulation plugging structure according to claim 7, characterized in that, One end of the base is fixedly connected to a first clamping groove plate and a second clamping groove plate, and the other end is provided with a groove block, one end of the groove block is arranged on both sides of the opening of the deformation joint; the middle plate is provided with a protrusion symmetrically arranged on both sides of the middle line of the bottom surface; one end of the top plate is provided with a first clamping hook plate and a second clamping hook plate, and the other end is flat.
9. A deformed joint waterproof thermal insulation plugging structure according to claim 8, characterized in that, The first clamping hook plate and the second clamping hook plate are respectively buckled with the first clamping groove plate and the second clamping groove plate, and the width between the first clamping groove plate and the second clamping groove plate is equal to the width of the second clamping hook plate.
10. A deformed joint waterproof thermal insulation plugging structure according to claim 1, characterized in that, The self-adhesive micro-expansion waterproof and thermal insulation coiled material module is pre-processed.