A telescopic adjustable combined outer wall deformation joint sealing rubber strip

Abstract

The utility model relates to a telescopic adjustment type combined outer wall deformation joint sealing rubber strip, including the deformation joint between two wall bodies and the sealing rubber strip main body in the joint. The main body is constituted by at least two sealing rubber conditions and connecting assembly, each sealing rubber condition contains expansion and contraction department and two end connecting parts, and adjacent rubber conditions are fixed through the connecting assembly, and the other end connecting part is fixedly connected wall body through bolt, and its core advantage lies in: can according to the actual width of deformation joint flexible increase and decrease sealing rubber condition quantity, accurate adaptation is different specification gap, need not to customize special rubber strip, and the production and construction cost are greatly reduced, and the product versatility is promoted, the expansion and contraction department of each rubber condition can fully absorb the deformation amount of building due to temperature change, settlement, earthquake etc., and the overall expansion and contraction range is expanded by the synergistic effect of multi-section expansion and contraction department, can satisfy different amplitude deformation demand in long -term use, avoid the tear, the falling of rubber strip due to excessive stretching or extrusion, guarantee the lasting and stable sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of adhesive strip technology, and in particular to a retractable and adjustable combination sealing adhesive strip for exterior wall expansion joints. Background Technology

[0002] In building structures, the installation of expansion joints is crucial for mitigating structural stress caused by factors such as temperature changes, settlement, or earthquakes.

[0003] In existing technologies, the sealing strips used for exterior wall expansion joints are mostly one-piece structures with fixed lengths and expansion ranges, making them difficult to adapt to expansion joints of different widths. When the width of the expansion joint varies, sealing strips of different sizes need to be custom-made, which not only increases production and construction costs but also prolongs the construction period. Furthermore, during installation, the fixed length of the one-piece sealing strip makes it difficult to achieve a precise fit with the wall, easily resulting in installation gaps, sealing failure, and consequently, problems such as rainwater leakage and heat loss. Utility Model Content

[0004] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, the present invention proposes an exterior wall expansion joint sealing strip that can adapt to expansion joints of different widths, has excellent expansion and contraction performance, is stable in connection and easy to install.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A retractable and adjustable combination exterior wall expansion joint sealing strip includes an expansion joint formed between two walls, with a sealing strip body disposed between the expansion joint. The sealing strip body includes at least two sealing elements and a connecting assembly connecting adjacent sealing elements. Each sealing element includes a telescopic portion and connecting portions located at the left and right ends of the telescopic portion. The connecting portions of two adjacent sealing elements are fixedly connected by the connecting assembly, and the connecting portion at the other end of the sealing element is fixed to the wall by bolts.

[0006] In some embodiments, the connecting portion includes a transverse adhesive strip connected to the telescopic portion, and the outer end of the transverse adhesive strip is provided with a vertically extending adhesive strip.

[0007] In some embodiments, a plurality of first through holes for bolt installation are evenly distributed at intervals along the front-back direction on the end face of the transverse rubber strip.

[0008] In some embodiments, a plurality of second through holes for bolt installation are evenly distributed and spaced along the front-back direction on the side of the vertical rubber strip.

[0009] In some embodiments, metal sheets extending in the front-to-back direction are inserted into both the horizontal and vertical rubber strips, and the bolts are threaded into the wall after passing through the metal sheets.

[0010] In some embodiments, a metal base is provided on each of the two connecting portions at the outermost end of the sealing strip body. The metal base includes a bottom plate and a side plate. The bottom plate is attached to the lower end of the horizontal strip, and the side plate is attached to the outer side of the vertical strip.

[0011] In some embodiments, a waterstop is connected between the two metal bases and below the sealing strip body, and a slot is provided at the inner end of the two base plates. The waterstop includes an arc-shaped portion and insert plates at both ends of the arc-shaped portion, and the insert plates can be inserted into the slot.

[0012] In some embodiments, a vertically extending support plate is provided on the arc-shaped portion, and a horizontal support plate is provided on the support plate, the horizontal support plate being supported at the lower end of the sealing strip body.

[0013] In some embodiments, the connecting component includes an n-shaped sleeve fitted on two adjacent vertical adhesive strips, and flat plates that fit onto the horizontal adhesive strips are provided on both sides of the lower end of the n-shaped sleeves. A plurality of barbs that can be engaged in the first through hole are provided at the lower end of the flat plates.

[0014] In some embodiments, the n-shaped sleeve, the flat plate, and the barb are integrally formed rubber material, and when the barb is placed in the first through hole, it can simultaneously block the first through hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. The main body of the sealing strip is composed of at least two sealing conditions combined by connecting components. The number of sealing conditions can be flexibly increased or decreased according to the actual width of the expansion joint, so as to accurately adapt to expansion joints of different width specifications. There is no need to customize special sealing strips, which effectively reduces production and construction costs and improves the versatility of the product.

[0016] 2. Each sealant section is equipped with an expansion joint, which can fully absorb the deformation of the building caused by temperature changes, settlement, earthquakes, etc. The expansion joints of multiple sealant sections work together to further expand the overall expansion range of the sealant strip, which can meet the deformation needs of different amplitudes during the long-term use of the building, and prevent the sealant strip from tearing or falling off due to excessive stretching or compression, thus ensuring the durability of the sealing effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention when the connecting part of the sealing strip body is fixed to the upper end face of the wall.

[0018] Figure 2 This utility model Figure 1 Enlarged diagram of point A.

[0019] Figure 3 This is a schematic diagram of the structure of the present invention when the connecting part of the sealing strip body is fixed to the side wall surface.

[0020] Figure 4 This utility model Figure 3 Enlarged diagram of point B.

[0021] Figure 5 This is an exploded structural diagram of the sealing strip body of this utility model. Detailed Implementation

[0022] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0023] like Figures 1-5 The diagram shows a retractable and adjustable combination of exterior wall expansion joint sealing strips, including an expansion joint 2 formed between two walls 1, and a sealing strip body 3 disposed between the expansion joint 2. The sealing strip body 3 includes at least two sealing conditions 4 and a connecting assembly connecting adjacent sealing conditions 4. Each sealing condition 4 includes a telescopic part 5 and connecting parts 6 disposed at the left and right ends of the telescopic part 5. The connecting parts 6 of two adjacent sealing conditions 4 are fixedly connected by the connecting assembly, and the connecting part 6 at the other end of the sealing condition 4 is fixed to the wall 1 by bolts 25.

[0024] Based on the actual width of the expansion joint 2 between the two walls, at least two sealant conditions 4 are selected. The connecting parts 6 of adjacent sealant conditions 4 are fixedly connected by connecting components to form a complete sealant strip body 3. The assembled sealant strip body 3 is placed into the expansion joint 2, and the connecting parts 6 at both ends of the sealant strip body 3 are fixed to the two side walls 1 by bolts 25, so that the sealant strip body 3 and the wall 1 form a stable connection, preventing the sealant strip from shifting or loosening due to external environment (such as wind force, vibration).

[0025] When a building deforms due to factors such as temperature changes, settlement, and earthquakes, the width of the expansion joint 2 will expand or contract accordingly. At this time, the expansion joints 5 on each sealant condition 4 will undergo elastic deformation simultaneously; when the expansion joint widens, the expansion joints 5 stretch to adapt to the increased width; when the expansion joint narrows, the expansion joints 5 contract to return to their original position. The expansion joints (5) of the multiple sealant conditions 4 work together to continuously maintain the tight fit between the main body 3 of the sealant strip and the inner wall of the expansion joint and the wall 1, thereby achieving dynamic sealing compensation for the expansion joint 2 and avoiding sealing failure.

[0026] In this utility model, the connecting part 6 includes a transverse adhesive strip 21 connected to the telescopic part 5, and the outer end of the transverse adhesive strip 21 is provided with a vertically extending adhesive strip 22.

[0027] This structure has two installation methods: the horizontal adhesive strip 21 can be fixed to the upper surface of the wall, or the vertical adhesive strip 22 can be fixed to the side wall surface of the wall.

[0028] Specifically, see Figure 1 , Figure 2 As shown, when the horizontal adhesive strip 21 is fixed to the upper surface of the wall, a number of first through holes 23 for the installation of the bolts 25 are evenly distributed along the front-back direction on the end face of the horizontal adhesive strip 21. Thus, the bolts 25 pass through the first through holes 23 and are threadedly connected and fixed to the upper surface of the wall 1.

[0029] The horizontal adhesive strip 21 is fixed to the upper surface of the wall. It is suitable for the side walls of the expansion joints to be covered by decorative layers, insulation layers or other components, and it is not possible to reserve bolt installation holes. In this case, it is more convenient to install on the upper surface of the wall.

[0030] See Figure 3 , Figure 4 As shown, when the vertical adhesive strip 22 is fixed to the side wall of the wall, there are several second through holes 24 evenly distributed along the front-back direction on the side of the vertical adhesive strip 22 for the installation of the bolts 25, so that the bolts 25 pass through the second through holes 24 and are threadedly fixed to the side wall of the wall 1.

[0031] For some structures (such as expansion joints under eaves or in suspended ceilings), the upper surface of the wall is sloping, curved, or covered by structural components, which cannot provide a stable horizontal installation surface. In this case, horizontal installation can be achieved by using the flat surface of the side wall for fixation.

[0032] In this utility model, metal sheets 31 extending in the front-to-back direction are inserted into both the horizontal adhesive strip 21 and the vertical adhesive strip 22, and the bolt 25 is threaded into the wall 1 after passing through the metal sheet 31.

[0033] The metal sheet 31 has excellent rigidity and shear resistance. After being inserted into the horizontal rubber strip 21 and the vertical rubber strip 22, it greatly improves the structural strength of the connection part 6. The metal sheet can effectively distribute the force and resist deformation, and prevent the rubber strip from tearing, denting or loosening of bolts due to load, thus significantly improving the connection stability.

[0034] Furthermore, a metal base is provided on each of the two connecting portions 6 at the outermost end of the sealing strip body 3. The metal base includes a bottom plate 42 and a side plate 43. The bottom plate 42 is attached to the lower end of the horizontal strip 21, and the side plate 43 is attached to the outer side of the vertical strip 22.

[0035] The base plate 42 and side plate 43 of the metal base form a three-dimensional support structure for the connecting part 6, which works in conjunction with the built-in metal sheet 31 to greatly improve the rigidity and deformation resistance of the connecting part.

[0036] In addition, the rigid structure of the metal base provides a stable installation benchmark for the connection, preventing warping or displacement of the connection due to its flexibility during installation. This ensures a complete and tight fit between the horizontal rubber strip 21 and the upper surface of the wall, and between the vertical rubber strip 22 and the side wall, reducing installation gaps. At the same time, the lower support and side protection structure of the metal base restricts unexpected displacement of the connection when the building deforms, ensuring that the sealing interface remains continuous and intact. This significantly improves the comprehensive protection effect of waterproofing, dustproofing, heat insulation, and sound insulation, making it especially suitable for scenarios with high waterproofing requirements.

[0037] See Figures 1-4 As shown, a waterstop 51 is connected between the two metal bases and below the sealing strip body 3. A slot 61 is provided at the inner end of the two base plates 42. The waterstop 51 includes an arc-shaped part 62 and insert plates 63 provided at both ends of the arc-shaped part 62. The insert plates 63 can be inserted into the slot 61.

[0038] When the building deforms and causes the expansion joint 2 to expand or contract, a two-way synergistic sealing compensation is formed: the expansion part 5 of the sealing strip body undergoes normal elastic deformation to achieve dynamic sealing of the sides and top of the expansion joint; the arc-shaped part 62 of the waterstop undergoes elastic deformation simultaneously. When the expansion joint widens, the arc-shaped part stretches and relaxes to maintain its fit with the bottom of the expansion joint; when the expansion joint narrows, the arc-shaped part contracts and resets to avoid wrinkle accumulation; at the same time, after the insert plate 63 and the slot 61 are engaged, they can be connected by screws or glue. The structure restricts the lateral displacement of the waterstop to ensure that it is always in the sealed position at the bottom of the expansion joint, preventing rainwater and seepage water from seeping in from the bottom of the expansion joint.

[0039] By employing a double-sealing design of the sealing strip body and the waterstop, a three-dimensional waterproof barrier is constructed. The main sealing strip is responsible for blocking most rainwater and dust from seeping in from the sides and top of the expansion joint, while the waterstop is specifically designed to protect against bottom seepage and condensation. This completely solves the problem of traditional single-seal structures being prone to leaks from the bottom, making it particularly suitable for high-frequency water-related scenarios such as roofs, basement exterior walls, and areas around bathrooms, significantly improving waterproof reliability.

[0040] See Figure 1 , Figure 3 As shown, a vertically extending support plate 71 is provided on the arc-shaped portion 62, and a horizontal support plate 72 is provided on the support plate 71. The horizontal support plate 72 is supported on the lower end of the sealing strip body 3.

[0041] The horizontal support plate 72 provides vertical support for the sealing strip body 3, effectively resisting the vertical forces generated by the weight of the strip itself, construction pressure, and minor loads in the later stage. This prevents the strip body from sinking, sinking in a local area, or warping in the middle, ensuring that it always maintains a tight fit with the inner wall of the expansion joint and the wall. This solves the problem of sealing gaps caused by the lack of support in traditional strips, which are prone to deformation, and improves the reliability of the seal.

[0042] In this utility model, the connecting component includes an n-shaped sleeve 81 sleeved on two adjacent vertical adhesive strips 22, and flat plates 82 attached to the horizontal adhesive strips 21 are provided on both sides of the lower end of the n-shaped sleeve 81. Several barbs 83 that can be hooked into the first through hole 23 are provided at the lower end of the flat plate 82.

[0043] Preferably, the n-shaped sleeve 81, the flat plate 82, and the barb 83 are made of integrally formed rubber material, and when the barb 83 is hooked into the first through hole 23, it can simultaneously block the first through hole 23.

[0044] During operation, align and bring together the vertical adhesive strips 22 of two adjacent sealant conditions 4, and then slip the integrally formed n-shaped sleeve 81 onto the outside of the two adjacent vertical adhesive strips 22 from top to bottom, so that the inner wall of the n-shaped sleeve 81 is tightly fitted to the outer side of the two vertical adhesive strips 22; at this time, n The flat plates 82 on both sides of the lower end of the sleeve 81 naturally fit against the upper end surfaces of the two adjacent transverse adhesive strips 21. The barbs 83 at the lower end of the flat plates 82 are aligned with the first through holes 23 on the transverse adhesive strips 21. Pressing the flat plates 82 causes the barbs 83 to be inserted into the first through holes 23. Since the connecting components are made of rubber, the barbs 83 have elastic deformation capabilities. During the insertion process, the hook part of the barb contracts and elastically resets after being fully inserted into the first through hole 23, hooking onto the inner wall of the first through hole 23, thus achieving a fixed connection between the two adjacent sealant conditions 4. At the same time, the body of the barb 83 fills the internal space of the first through hole 23. The sealing properties of the rubber material make the barb 83 fit tightly against the inner wall of the first through hole 23, completely blocking the first through hole 23 and preventing rainwater and dust from seeping in through the through hole.

[0045] Based on the accompanying drawings and the foregoing display and description of the basic principles, main features, and advantages of this utility model, those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A retractable and adjustable combined exterior wall expansion joint sealing strip, comprising an expansion joint (2) formed between two walls (1), and a sealing strip body (3) disposed between the expansion joint (2), characterized in that: The sealing strip body (3) includes at least two sealing conditions (4) and a connecting assembly that connects two adjacent sealing conditions (4). Each sealing condition (4) includes a telescopic part (5) and a connecting part (6) located at the left and right ends of the telescopic part (5). The connecting parts (6) of two adjacent sealing conditions (4) are fixedly connected by the connecting assembly, while the connecting part (6) at the other end of the sealing condition (4) is fixed to the wall (1) by bolts (25).

2. The retractable and adjustable combined exterior wall expansion joint sealing strip according to claim 1, characterized in that: The connecting part (6) includes a transverse rubber strip (21) connected to the telescopic part (5), and the outer end of the transverse rubber strip (21) is provided with a vertically extending rubber strip (22).

3. The retractable and adjustable combined exterior wall expansion joint sealing strip according to claim 2, characterized in that: The transverse rubber strip (21) has a number of first through holes (23) evenly distributed along the front-back direction for the installation of the bolt (25).

4. The retractable and adjustable combined exterior wall expansion joint sealing strip according to claim 2, characterized in that: Several second through holes (24) for mounting the bolts (25) are evenly distributed and spaced along the front-back direction on the side of the vertical rubber strip (22).

5. The retractable and adjustable combined exterior wall expansion joint sealing strip according to claim 2, characterized in that: Metal sheets (31) extending in the front-to-back direction are inserted in both the horizontal rubber strip (21) and the vertical rubber strip (22). The bolt (25) passes through the metal sheet (31) and is threaded to the wall (1).

6. The retractable and adjustable combined exterior wall expansion joint sealing strip according to claim 2, characterized in that: Metal bases are provided on the two connecting parts (6) at the outermost end of the sealing strip body (3). The metal bases include a bottom plate (42) and a side plate (43). The bottom plate (42) is attached to the lower end of the horizontal strip (21), and the side plate (43) is attached to the outer side of the vertical strip (22).

7. The retractable and adjustable combined exterior wall expansion joint sealing strip according to claim 6, characterized in that: A waterstop (51) is connected between the two metal bases and below the sealing strip body (3). A slot (61) is provided at the inner end of the two base plates (42). The waterstop (51) includes an arc-shaped part (62) and insert plates (63) provided at both ends of the arc-shaped part (62). The insert plates (63) can be inserted into the slot (61).

8. The retractable and adjustable combined exterior wall expansion joint sealing strip according to claim 7, characterized in that: A vertically extending support plate (71) is provided on the arc-shaped part (62), and a horizontal support plate (72) is provided on the support plate (71). The horizontal support plate (72) is supported on the lower end of the sealing strip body (3).

9. The retractable and adjustable combined exterior wall expansion joint sealing strip according to claim 3, characterized in that: The connecting assembly includes an n-shaped sleeve (81) fitted on two adjacent vertical adhesive strips (22), and a flat plate (82) attached to the horizontal adhesive strip (21) on both sides of the lower end of the n-shaped sleeve (81). A plurality of barbs (83) that can be hooked into the first through hole (23) are provided at the lower end of the flat plate (82).

10. The retractable and adjustable combined exterior wall expansion joint sealing strip according to claim 9, characterized in that: The n-type sleeve (81), the flat plate (82) and the barb (83) are made of rubber material in one piece, and when the barb (83) is hooked into the first through hole (23), it can block the first through hole (23).

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