Combined sealing rubber strip
By combining the pre-installed fixing part and the detachable telescopic sealing part of the combined sealing strip, the problem of the need to replace the entire traditional sealing strip is solved, which simplifies construction, reduces costs and optimizes performance, and adapts to the application needs of different specifications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional expansion joint sealing strips require complete replacement, which is costly and inefficient when there is partial damage. Furthermore, the need to prepare multiple specifications leads to high manufacturing costs.
The design adopts a combined sealing strip, including a pre-installed fixing part and a detachable telescopic sealing part. The pre-installed fixing part is pre-anchored, and the telescopic sealing part is detachable. Combined with the plug-in structure and bolt column connection, and equipped with a waterstop, it forms a double-layer waterproof structure.
It simplifies the construction process, reduces maintenance costs and time, improves connection stability and waterproof performance, and supports the adaptation of expansion joints of different materials or specifications.
Smart Images

Figure CN224063689U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sealing strip technology, and in particular to a combined sealing strip. Background Technology
[0002] In the field of building engineering, expansion joints are structural joints in building structures designed to accommodate displacement caused by factors such as temperature changes, foundation settlement, or earthquakes. Traditional expansion joint sealing often uses integrated sealing strips or filling materials. However, the integral structure of the sealing strip has the following drawbacks: 1. It needs to be embedded into the expansion joint all at once in the later stages of construction. If a part is damaged, the entire strip needs to be replaced, resulting in high construction costs and low efficiency; 2. Because the spacing of each expansion joint is different, various specifications of sealing strips need to be prepared, which increases manufacturing costs. Utility Model Content
[0003] 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 a combined sealing strip.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A combined 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 a pre-installed fixing part fixed to the two walls and a telescopic sealing part detachably installed between the two pre-installed fixing parts.
[0006] In some embodiments, the telescopic sealing part includes a bellows telescopic part and connecting parts disposed at both ends of the bellows telescopic part, wherein the connecting parts and the pre-installed fixing part are detachably installed.
[0007] In some embodiments, a plurality of upwardly extending first plug-in portions are provided at intervals at the upper end of the pre-installed fixing portion, and a plurality of first plug-in slots that cooperate with the first plug-in portions are provided at intervals at the lower end of the connecting portion.
[0008] In some embodiments, a plurality of second plug-in portions are provided at intervals at the lower end of the connecting portion, and a plurality of second plug-in slots that cooperate with the second plug-in portions are provided at intervals at the upper end of the pre-installed fixing portion.
[0009] In some embodiments, the device further includes a bolt post, a nut, and a pressure plate. The pressure plate is pressed onto the connecting part and the pre-installed fixing part, respectively. The lower end of the bolt post is fixed to the wall, and the upper end of the bolt post passes through the pre-installed fixing part and the pressure plate and is connected to the nut.
[0010] In some embodiments, a waterstop is also provided inside the expansion joint.
[0011] In some embodiments, the waterstop includes an arc-shaped portion and horizontal plates disposed at both ends of the arc-shaped portion. The arc-shaped portion is disposed within the expansion joint, and the horizontal plates are disposed at the upper end of the wall and are pressed by the pre-installed fixing portion.
[0012] In some embodiments, a support plate is provided on the arc-shaped portion, and a horizontal support bar is provided at the upper end of the support plate, the horizontal support bar being supported at the lower end of the telescopic sealing portion.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. The pre-installed fixing part can be anchored to the wall in advance, simplifying the on-site construction process; while the expansion sealing part adopts a detachable design, so only this part needs to be replaced when there is partial damage, reducing maintenance costs and time;
[0015] 2. The pre-installed fixing part uses high-strength materials to ensure anchoring stability, while the expansion sealing part focuses on elasticity and sealing performance, achieving targeted optimization of material performance;
[0016] 3. It can flexibly adapt to telescopic sealing parts of different materials or specifications, expanding application scenarios. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the sealing strip after installation.
[0018] Figure 2 This is an exploded structural diagram of the sealing strip of this utility model;
[0019] Figure 3 This is a partially exploded view of the sealing strip of this utility model. Detailed Implementation
[0020] 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.
[0021] like Figures 1-3 The illustrated composite sealing strip includes an expansion joint 2 formed between two walls 1, and a sealing strip body 3 is provided between the expansion joint 2. The sealing strip body 3 includes a pre-installed fixing part 4 fixed to the two walls 1 and a telescopic sealing part 5 detachably installed between the two pre-installed fixing parts 4.
[0022] Based on the above structure, the pre-installed fixing part 4 can be anchored to the wall 1 in advance, simplifying the on-site construction process; while the expansion sealing part 5 adopts a detachable design, and only this part needs to be replaced when there is partial damage, reducing maintenance costs and time.
[0023] In addition, the pre-installed fixing part 4 uses high-strength materials to ensure anchoring stability, while the telescopic sealing part 5 focuses on elasticity and sealing performance, achieving targeted optimization of material properties.
[0024] It can also support flexible adaptation of telescopic sealing parts of different materials or specifications, expanding application scenarios.
[0025] In this utility model, the telescopic sealing part 5 includes a bellows telescopic part 21 and connecting parts 22 provided at both ends of the bellows telescopic part 21. The connecting parts 22 and the pre-installed fixing parts 4 are detachably installed. The pleated structure of the bellows telescopic part 21 can freely expand and contract along the direction of the deformation joint 2 to adapt to a large range of displacement and avoid tearing due to stretching or compression. The standardized design of the connecting parts 22 can be adapted to pre-installed fixing parts 4 of different specifications, improving versatility.
[0026] In this utility model, a plurality of upwardly extending first plug-in portions 31 are provided at intervals on the upper end of the pre-installed fixing portion 4, and a plurality of first plug-in slots 32 that cooperate with the first plug-in portions 31 are provided at intervals on the lower end of the connecting portion 22.
[0027] Furthermore, a plurality of second plug-in portions 41 are provided at intervals at the lower end of the connecting portion 22, and a plurality of second plug-in slots 42 that cooperate with the second plug-in portions 41 are provided at intervals at the upper end of the pre-installed fixing portion 4.
[0028] The bidirectional plug-in structure enhances connection stability and prevents loosening caused by unilateral force. In addition, the staggered distribution of the plug-in structure reduces the seepage path at the joints and improves the overall waterproof performance.
[0029] This utility model also includes a bolt post 51, a nut 52 and a pressure plate 53. The pressure plate 53 is pressed onto the connecting part 22 and the pre-installed fixing part 4 respectively. The lower end of the bolt post 51 is fixed on the wall 1, and the upper end of the bolt post 51 passes through the pre-installed fixing part 4 and the pressure plate 53 respectively and is connected to the nut 52.
[0030] The lower part of the bolt column 51 is embedded in the wall 1, and the upper part passes through the pre-installed fixing part 4 and the pressure plate 53 and is locked by the nut 52. The pressure plate 53 is made of stainless steel and covers the joint area.
[0031] The pressure plate 53 can simultaneously press the connecting part 22 and the pre-installed fixing part 4 together, further improving the stability of the connection after the connecting part 22 and the pre-installed fixing part 4 are connected.
[0032] In this utility model, a waterstop 61 is also provided in the expansion joint 2. The waterstop 61 and the sealing strip body 3 form a double-layer waterproof structure to prevent water seepage into the building interior along the expansion joint 2.
[0033] Furthermore, the waterstop 61 includes an arc-shaped portion 71 and horizontal plates 72 disposed at both ends of the arc-shaped portion 71. The arc-shaped portion 71 is disposed within the expansion joint 2, and the horizontal plates 72 are disposed at the upper end of the wall 1 and are pressed by the pre-installed fixing part 4. Thus, the pre-installed fixing part 4 presses the horizontal plates 72 by the pressure plate 53, while the arc-shaped portion 71 can naturally bend with the change of joint width within the expansion joint 2 to avoid breakage due to stretching.
[0034] Furthermore, a support plate 81 is provided on the arc-shaped portion 71, and a horizontal support bar 82 is provided at the upper end of the support plate 81. The horizontal support bar 82 supports the lower end of the telescopic sealing portion 5. The support plate 81 and the horizontal support bar 82 can prevent the telescopic sealing portion 5 from sagging and deforming due to its own weight or external pressure, thereby extending the service life of the telescopic sealing portion 5.
[0035] 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 combined sealant strip comprising a deformation joint (2) formed between two wall bodies (1), a sealant strip body (3) being arranged between said deformation joint (2), characterized in that: The sealing strip body (3) comprises pre-installed fixing parts (4) fixed on the two walls (1) and a telescopic sealing part (5) detachably installed between the two pre-installed fixing parts (4).
2. The combination weatherstrip of claim 1 wherein: The telescopic sealing part (5) comprises an accordion part (21) and connecting parts (22) arranged at both ends of the accordion part (21), and the connecting parts (22) are detachably installed with the pre-installed fixing parts (4).
3. A combined sealing and weatherstrip strip according to claim 2, characterized in that: A plurality of first insertion parts (31) extending upward are arranged at the upper end of the pre-installed fixing part (4), and a plurality of first insertion grooves (32) matched with the first insertion parts (31) are arranged at the lower end of the connecting part (22).
4. The combination weatherstrip of claim 3 wherein: A plurality of second insertion parts (41) are arranged at the lower end of the connecting part (22), and a plurality of second insertion grooves (42) matched with the second insertion parts (41) are arranged at the upper end of the pre-installed fixing part (4).
5. The combination weatherstrip of claim 2 wherein: Further comprising a bolt column (51), a nut (52) and a pressing plate (53), the pressing plate (53) is pressed on the connecting part (22) and the pre-installed fixing part (4) respectively, the lower end of the bolt column (51) is fixed on the wall (1), and the upper end of the bolt column (51) is connected with the nut (52) after passing through the pre-installed fixing part (4) and the pressing plate (53) respectively.
6. The combination weatherstrip of any one of claims 1-5, wherein: A water stop (61) is further arranged in the deformation joint (2).
7. A combined sealing and weatherstrip strip according to claim 6, characterized in that: The water stop (61) comprises an arc-shaped part (71) and a horizontal plate (72) arranged at both ends of the arc-shaped part (71), the arc-shaped part (71) is arranged in the deformation joint (2), and the horizontal plate (72) is arranged at the upper end of the wall (1) and is pressed tightly by the pre-installed fixing part (4).
8. The combination weatherstrip of claim 7 wherein: A supporting vertical plate (81) is arranged on the arc-shaped part (71), and a horizontal supporting strip (82) is arranged at the upper end of the supporting vertical plate (81), and the horizontal supporting strip (82) supports the lower end of the telescopic sealing part (5).