Hollow rubber seal dovetail
By designing a combination structure of a fixing seat and a rubber strip for a hollow rubber sealing dovetail strip, the problems of gaps and poor stability during the installation of the dovetail strip were solved, thereby improving stability and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUYAO CHENGTAI PRECISION HARDWARE CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-09
AI Technical Summary
Existing dovetail-shaped rubber strips are prone to gaps during installation, making adjustments difficult, resulting in poor stability and a short service life.
A hollow rubber sealing dovetail strip is designed, which adopts a combination structure of fixed seat and rubber strip. The dovetail groove and reserved hole facilitate installation, and the positioning groove and adjustment groove of the adjustment strip are used to achieve precise adjustment, thereby improving stability and service life.
It achieves efficient connection between the dovetail strip and the retaining strip, reduces installation difficulty, improves stability and service life, and facilitates later adjustment of the installation gap.
Smart Images

Figure CN224339478U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dovetail strip technology, specifically a hollow rubber sealing dovetail strip. Background Technology
[0002] Dovetail-shaped rubber strips are rubber sealing materials shaped like dovetails. They possess weather resistance, high elasticity, tear resistance, and aging resistance. Widely used in bridge construction, dovetail-shaped rubber strips play a crucial role in sealing and protection. They are also known as dovetail-shaped sealing strips or dovetail-shaped grout-stopping strips.
[0003] However, during the installation of dovetail rubber strips, gaps easily appear between the dovetail rubber strip and the clip when the slot engages with the clip. This makes adjustment troublesome and can easily damage the dovetail rubber strip. Moreover, although dovetail rubber strips have weather resistance, high elasticity, and tear resistance, their overall stability is poor. They are prone to deformation under external forces, have a short service life, and require frequent replacement. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a hollow rubber sealing dovetail strip, which has the advantages of high efficiency, stability, long service life, and convenient adjustment of the gap between the dovetail rubber strip and the retaining strip, thereby improving the fit and solving the above-mentioned technical problems.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a hollow rubber sealing dovetail strip, comprising a dovetail strip body, a fixing seat provided on the inner side of the dovetail strip body, a rubber strip installed on the inner side of the fixing seat by snap-fit, and an adjusting strip installed on the inner side of the rubber strip and the dovetail strip body by snap-fit.
[0008] Preferably, the top side of the dovetail strip body is provided with a dovetail groove, and the left and right ends of the dovetail strip body are respectively provided with reserved holes, and the bottom side of the reserved holes has a through structure.
[0009] With the above technical solution, during installation, the dovetail groove facilitates connection and engagement with the locking strip, while the pre-drilled holes facilitate the installation of the adjustment strip.
[0010] Preferably, the dovetail strip body is made of rubber, and the dovetail strip body is processed using a model casting process, with the fixing seat and rubber strip pre-reserved inside the model.
[0011] With the above technical solution, during production, the fixing seats are arranged in pairs at equal intervals, and the fixing seats are connected and engaged with the rubber strip. Then, the fixing seats and rubber strip can be placed in a mold, and the raw material is injected by mold casting to produce the rubber sealing dovetail strip.
[0012] Preferably, the fixing seats are arranged in groups of two, with several groups arranged at equal intervals, and the opposite sides of the fixing seats are provided with slots.
[0013] With the above technical solution, the rubber strip is easily installed during assembly due to the action of the slot. At the same time, by using two fixed seats as a group for assembly, the stability of the dovetail strip is improved and it is convenient for fine-tuning in the later stage.
[0014] Preferably, the size and shape of the rubber strip match the slot, and positioning grooves and adjustment grooves are respectively provided at both ends of the rubber strip.
[0015] The above technical solution facilitates the later installation of adjustment strips by using positioning grooves and adjustment grooves at both ends of the rubber strip. The positioning grooves make it easy to position and install the strips, while the adjustment grooves facilitate the squeezing and adjustment of the spacing.
[0016] Preferably, the adjusting strip includes a positioning post and an adjusting plate, wherein the adjusting plate is fixedly installed on the bottom side of the positioning post, and the adjusting plate is slightly larger than the adjusting groove.
[0017] With the above technical solution, during adjustment, the adjustment strip is passed through the inside of the reserved hole and the adjustment groove. Since the adjustment plate is slightly larger than the adjustment groove, it pushes the two ends of the dovetail strip body to expand outward when locked, thereby causing the fixing seat and the two sides of the slot to bend and move closer to the two sides of the locking strip, which facilitates the adjustment of the installation gap and reduces the difficulty of adjustment.
[0018] Compared with the prior art, this utility model provides a hollow rubber sealing dovetail strip, which has the following beneficial effects:
[0019] 1. This utility model arranges the fixing seats in pairs at equal intervals and connects and engages them with the rubber strip. Then, the fixing seats and rubber strips are placed in a mold, and the raw materials are injected using a mold casting process to produce a rubber sealing dovetail strip. The addition of fixing seats and rubber strips inside helps to avoid affecting the elasticity of the dovetail strip body and increases the overall firmness and service life of the dovetail strip body, and also facilitates the adjustment of the installation gap later.
[0020] 2. When installing this utility model, the dovetail groove on the dovetail strip body is connected and engaged with the locking strip. Then, the adjusting strip is passed through the reserved hole and the inner side of the adjusting groove. At this time, since the adjusting plate is slightly larger than the adjusting groove, it pushes the two ends of the dovetail strip body to expand outward when engaged, thereby causing the fixing seat and the two sides of the locking groove to bend and move closer to the two sides of the locking strip, which facilitates the adjustment of the installation gap and reduces the difficulty of adjustment. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the entire utility model;
[0022] Figure 2 This is a schematic diagram of the right-side cross-sectional structure of this utility model;
[0023] Figure 3 This is a three-dimensional structural diagram of the fixing base of this utility model;
[0024] Figure 4 This is a three-dimensional structural diagram of the adjusting strip of this utility model;
[0025] Figure 5 This is a three-dimensional structural diagram of the rubber strip of this utility model.
[0026] The components are: 1. Dovetail strip body; 2. Fixing base; 3. Rubber strip; 4. Adjusting strip; 101. Dovetail groove; 102. Reserved hole; 201. Slot; 301. Positioning groove; 302. Adjusting groove; 401. Positioning post; 402. Adjusting plate. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1
[0028] like Figure 1-5 As shown, the present invention provides a hollow rubber sealing dovetail strip, including a dovetail strip body 1, a fixing seat 2 is provided on the inner side of the dovetail strip body 1, a rubber strip 3 is installed on the inner side of the fixing seat 2 by snap-fit, and an adjusting strip 4 is installed on the inner side of the rubber strip 3 and the dovetail strip body 1 by snap-fit.
[0029] Specifically, a dovetail groove 101 is provided on the top side of the dovetail strip body 1, and reserved holes 102 are provided at both the left and right ends of the dovetail strip body 1, with the bottom side of the reserved holes 102 having a through structure. The advantage is that the dovetail groove 101 facilitates connection with the retaining strip during installation, and the reserved holes 102 facilitate the installation of the adjusting strip 4.
[0030] Specifically, the dovetail strip body 1 is made of rubber and is manufactured using a mold casting process. The fixing seat 2 and the rubber strip 3 are pre-installed inside the mold. The advantage is that by arranging the fixing seats 2 in pairs at equal intervals and connecting and engaging the fixing seats 2 and the rubber strip 3, the fixing seats 2 and the rubber strip 3 can be placed in the mold, and then the raw material can be injected using the mold casting process to produce the rubber sealing dovetail strip.
[0031] Specifically, the fixing seats 2 are arranged in groups of two, with several groups evenly spaced, and slots 201 are provided on opposite sides of the fixing seats 2. The advantage is that the slots 201 facilitate the installation of the rubber strip 3, and the combination of fixing seats 2 in groups of two improves the stability of the dovetail strip and facilitates fine-tuning later. Example 2
[0032] like Figure 1-5 As shown, this is an improvement on the previous embodiment. Specifically, the size and shape of the rubber strip 3 match the slot 201, and positioning grooves 301 and adjustment grooves 302 are respectively provided at both ends of the rubber strip 3. The advantage is that by providing positioning grooves 301 and adjustment grooves 302 at both ends of the rubber strip 3, it is convenient to install the adjustment strip 4 later. At this time, the positioning groove 301 facilitates positioning and installation, and the adjustment groove 302 facilitates squeezing and adjusting the spacing.
[0033] Specifically, the adjusting strip 4 includes a positioning post 401 and an adjusting plate 402. The adjusting plate 402 is fixedly installed on the bottom side of the positioning post 401, and the adjusting plate 402 is slightly larger than the adjusting groove 302. The advantage is that by passing the adjusting strip 4 through the reserved hole 102 and the inner side of the adjusting groove 302, since the adjusting plate 402 is slightly larger than the adjusting groove 302, the two ends of the dovetail strip body 1 are pushed outward during engagement, thereby causing the fixing seat 2 and the two sides of the slot 201 to bend and move closer to the two sides of the strip, which facilitates the adjustment of the installation gap and reduces the difficulty of adjustment.
[0034] In use, the fixing seats 2 are first arranged in pairs at equal intervals, and the fixing seats 2 are connected and engaged with the rubber strip 3. Then, the fixing seats 2 and rubber strip 3 are placed in the mold, and the raw material is injected by mold casting to produce the rubber sealing dovetail strip. The addition of fixing seats 2 and rubber strip 3 inside helps to avoid affecting the elasticity of the dovetail strip body 1 and increases the overall firmness and service life of the dovetail strip body 1. It also facilitates the adjustment of the installation gap later. During installation, the dovetail groove 101 on the dovetail strip body 1 is connected and engaged with the locking strip. Then, the adjusting strip 4 is passed through the inner side of the reserved hole 102 and the adjusting groove 302. Since the adjusting plate 402 is slightly larger than the adjusting groove 302, it pushes the two ends of the dovetail strip body 1 to expand outward when engaged, so that the fixing seats 2 and the two sides of the locking groove 201 bend and move closer to the two sides of the locking strip, which facilitates the adjustment of the installation gap and reduces the difficulty of adjustment.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A hollow rubber sealing dovetail strip, comprising a dovetail strip body (1), characterized in that: A fixing seat (2) is provided on the inner side of the dovetail strip body (1). A rubber strip (3) is installed on the inner side of the fixing seat (2) by snapping. An adjusting strip (4) is installed on the inner side of the rubber strip (3) and the dovetail strip body (1) by snapping.
2. The hollow rubber sealing dovetail strip according to claim 1, characterized in that: The top side of the dovetail strip body (1) is provided with a dovetail groove (101), and the left and right ends of the dovetail strip body (1) are respectively provided with reserved holes (102), and the bottom side of the reserved holes (102) has a through structure.
3. The hollow rubber sealing dovetail strip according to claim 1, characterized in that: The dovetail strip body (1) is made of rubber and is processed by model casting process. The fixing seat (2) and rubber strip (3) are reserved inside the model.
4. The hollow rubber sealing dovetail strip according to claim 1, characterized in that: The fixing bases (2) are arranged in groups of two, and several groups are arranged at equal intervals. The fixing bases (2) are provided with slots (201) on opposite sides.
5. A hollow rubber sealing dovetail strip according to claim 4, characterized in that: The size and shape of the rubber strip (3) match the slot (201), and the two ends of the rubber strip (3) are respectively provided with positioning slot (301) and adjustment slot (302).
6. The hollow rubber sealing dovetail strip according to claim 5, characterized in that: The adjustment bar (4) includes a positioning post (401) and an adjustment plate (402). The adjustment plate (402) is fixedly installed on the bottom side of the positioning post (401), and the adjustment plate (402) is slightly larger than the adjustment groove (302).