Expansion joint structure
Patent Information
- Application Number
- CN202522130446.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-09
AI Technical Summary
[0003]然而，在小尺寸伸缩缝中，例如宽度为50毫米以下的模数式、梳齿式或填缝式伸缩缝的实际运维中，胶条装拆便利性不足的问题始终困扰着养护单位
[0015]本实用新型的有益效果为，第一桥梁和第二桥梁的缝隙两侧，分别设置左边梁连接块和右边梁连接块，两者相对的侧面开设左卡槽和右卡槽。胶条的两端直接插入左卡槽和右卡槽中，通过卡槽和胶条之间的摩擦力实现初步横向定位。左边梁连接块和右边梁连接块的顶部分别开设连通至卡槽的左开孔和右开孔，下压机构穿过顶部对应的左开孔、右开孔后直接作用于胶条表面。通过下压机构对胶条施加垂直向下的压力，使胶条与卡槽内壁紧密贴合，替代传统仅依赖卡扣摩擦力的固定方式。相比传统嵌入式卡扣设计，该伸缩缝在装拆便利性、固定可靠性实现了优化。
Smart Images
Figure CN224784707U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road and bridge construction, and in particular to an expansion joint structure. Background Technology
[0002] Expansion joints, as core functional components in road and bridge engineering, are designed to absorb structural stresses generated by factors such as temperature deformation, uneven foundation settlement, and vehicle dynamic loads, thereby ensuring the overall stability and service life of transportation infrastructure such as highways and bridges. Therefore, they are widely used in urban and rural main roads, cross-river bridges, and elevated interchanges.
[0003] However, in the actual operation and maintenance of small-sized expansion joints, such as modular, comb-type, or filler-type expansion joints with a width of less than 50 mm, the lack of convenience in installing and removing the rubber strips has always plagued maintenance units. Existing rubber strips for small-sized expansion joints mostly adopt an embedded snap-fit design. Due to the limited space of the expansion joint itself, with some gaps only 20 to 30 mm wide, maintenance personnel need to use small pry bars, screwdrivers, and other tools to gradually disassemble the strips when replacing them. This process is cumbersome, requiring care to avoid damaging surrounding concrete edges or steel components. Utility Model Content
[0004] The technical problem to be solved by this utility model is to solve at least one of the technical problems mentioned above.
[0005] The solution to the technical problem of this utility model is: An expansion joint structure includes a first bridge and a second bridge, with a gap between them. The expansion joint also includes an adhesive strip, a left beam connecting block, a right beam connecting block, a first pressing mechanism, and a second pressing mechanism. The left beam connecting block has a left slot, and the right beam connecting block has a right slot, with the left and right slots facing each other. The two ends of the adhesive strip are respectively inserted into the left and right slots. The top of the left beam connecting block has a left opening communicating with the left slot, and the top of the right beam connecting block has a right opening communicating with the right slot. Two pressing mechanisms are provided, one on each of the left and right beam connecting blocks. The left beam connecting block has a first pressing mechanism, and the right beam connecting block has a second pressing mechanism. The first pressing mechanism passes through the left opening to press the adhesive strip, and the second pressing mechanism passes through the right opening to press the adhesive strip. The left and right beam connecting blocks are respectively located on the first and second bridges.
[0006] As a further improvement to the above technical solution, the first pressing mechanism includes a first pressing block, a first protrusion, and a first screw. The first pressing block is disposed on the top surface of the left beam connecting block. Multiple first protrusions are provided, and all the first protrusions are disposed on the bottom surface of the first pressing block. Multiple left openings are provided, and the left openings and the first protrusions are arranged in a one-to-one correspondence. The first protrusions pass through the left openings and press the rubber strip. A first locking hole is provided on the first pressing block, and the first screw locks the first pressing block and the left beam connecting block through the first locking hole.
[0007] As a further improvement to the above technical solution, the second pressing mechanism includes a second pressing block, a second protrusion, and a second screw. The second pressing block is disposed on the top surface of the right beam connecting block. Multiple second protrusions are provided, and all the second protrusions are disposed on the bottom surface of the second pressing block. Multiple right openings are provided, and the right openings and the second protrusions are arranged in a one-to-one correspondence. The second protrusions pass through the right openings and press the rubber strip. A second locking hole is provided on the second pressing block, and the second screw locks the second pressing block and the right beam connecting block through the second locking hole.
[0008] As a further improvement to the above technical solution, the top surfaces of both ends of the adhesive strip are provided with recesses, the first pressing mechanism is inserted into the recess through the left opening, and the second pressing mechanism is inserted into the recess through the right opening.
[0009] As a further improvement to the above technical solution, the left beam connecting block includes a left anchor bracket and a left beam body, the left beam body is disposed on the left anchor bracket, and the left slot is disposed on the left beam body.
[0010] As a further improvement to the above technical solution, the main body of the left beam includes a first partition plate, a first top plate, a first bottom plate, and a first connecting plate. The first connecting plate is disposed between the first top plate and the first bottom plate, and the first connecting plate, the first top plate, and the first bottom plate are fixedly connected to form an I-shape. The first partition plate is disposed between the first top plate and the first bottom plate, and is located on the right side of the first connecting plate. The first partition plate and the first connecting plate are fixedly connected. The first connecting plate, the first top plate, and the first partition plate form the left slot, and the left opening is formed on the first top plate.
[0011] As a further improvement to the above technical solution, the right beam connecting block includes a right anchor bracket and a right beam body, the right beam body is disposed on the right anchor bracket, and the right slot is disposed on the right beam body.
[0012] As a further improvement to the above technical solution, the right beam body includes a second partition plate, a second top plate, a second bottom plate, and a second connecting plate. The second connecting plate is disposed between the second top plate and the second bottom plate, and the second connecting plate, the second top plate, and the second bottom plate are fixedly connected to form an I-shape. The second partition plate is disposed between the second top plate and the second bottom plate, and is located on the left side of the second connecting plate. The second partition plate and the second connecting plate are fixedly connected. The second connecting plate, the second top plate, and the second partition plate form the right slot, and the right opening is formed on the second top plate.
[0013] As a further improvement to the above technical solution, the adhesive strip includes a left end, a right end, and a connecting part connecting the left end and the right end. The connecting part is V-shaped, the left end is inserted into the left slot, and the right end is inserted into the right slot.
[0014] As a further improvement to the above technical solution, the top and / or bottom surfaces of the left end are provided with serrated anti-slip stripes, and the top and / or bottom surfaces of the right end are provided with serrated anti-slip stripes.
[0015] The beneficial effects of this utility model are as follows: A left beam connecting block and a right beam connecting block are respectively provided on both sides of the gap between the first and second bridges, with left and right locking slots opened on their opposite sides. The two ends of the adhesive strip are directly inserted into the left and right locking slots, achieving initial lateral positioning through the friction between the slots and the adhesive strip. The tops of the left and right beam connecting blocks have left and right openings respectively, connecting to the locking slots. The pressing mechanism passes through the corresponding left and right openings at the top and acts directly on the surface of the adhesive strip. The pressing mechanism applies vertical downward pressure to the adhesive strip, causing it to fit tightly against the inner wall of the locking slot, replacing the traditional fixing method that relies solely on the friction of the buckles. Compared to the traditional embedded buckle design, this expansion joint optimizes the ease of installation and disassembly, as well as the reliability of its fixation. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of the expansion joint of this utility model.
[0017] Figure 2 This is a partial isometric view of the left end of the adhesive strip of this utility model.
[0018] Figure 3 This is an isometric view of the first pressure block of this utility model.
[0019] Reference numerals in the attached drawings: 1-Rubber strip, 11-Recess, 21-Left anchor bracket, 220-Left slot, 221-First partition plate, 222-First top plate, 223-First bottom plate, 224-First connecting plate, 31-Right anchor bracket, 320-Right slot, 321-Second partition plate, 322-Second top plate, 323-Second bottom plate, 324-Second connecting plate, 41-First pressure block, 42-First protrusion, 43-First screw, 431-First locking hole, 51-Second pressure block, 52-Second protrusion, 53-Second screw. Detailed Implementation
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments have been briefly explained above. Obviously, the described drawings are only a part of the embodiments of this utility model, not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.
[0021] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages mentioned herein do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.
[0022] In the actual operation and maintenance of small-sized expansion joints, such as modular, comb-type, or filler-type expansion joints with a width of less than 50 mm, the lack of ease of installation and removal of the rubber strip 1 has always plagued maintenance units. Currently, most rubber strips 1 for small-sized expansion joints adopt an embedded snap-fit design. Due to the limited space of the expansion joint itself, with some gaps only 20 to 30 mm wide, maintenance personnel need to use small pry bars, screwdrivers, and other tools to gradually disassemble the strip when replacing it. This process is cumbersome, requiring care to avoid damaging surrounding concrete edges or steel components.
[0023] like Figures 1 to 3As shown, an expansion joint structure includes a first bridge and a second bridge, with a gap between them. The expansion joint also includes a rubber strip 1, a left beam connecting block, a right beam connecting block, a first pressing mechanism, and a second pressing mechanism. The left beam connecting block has a left slot 220, and the right beam connecting block has a right slot 320. The left slot 220 and the right slot 320 are oriented towards each other. The two ends of the rubber strip 1 are respectively inserted into the left slot 220 and the right slot 320. The top of the left beam connecting block has a connection to the left... The left opening of the slot 220 and the right opening at the top of the right beam connecting block are connected to the right slot 320. Two pressing mechanisms are provided, one on the left beam connecting block and one on the right beam connecting block. The left beam connecting block is provided with a first pressing mechanism and the right beam connecting block is provided with a second pressing mechanism. The first pressing mechanism passes through the left opening to press the rubber strip 1, and the second pressing mechanism passes through the right opening to press the rubber strip 1. The left beam connecting block and the right beam connecting block are respectively provided on the first bridge and the second bridge.
[0024] As described above, left and right beam connecting blocks are respectively installed on both sides of the gap between the first and second bridges, with left and right slots 220 and 320 respectively on their opposite sides. The two ends of the adhesive strip 1 are directly inserted into the left and right slots 220 and 320, respectively, achieving initial lateral positioning through the friction between the slots and the adhesive strip 1. The tops of the left and right beam connecting blocks have left and right openings respectively, connecting to the slots. The pressing mechanism passes through the corresponding left and right openings at the top and acts directly on the surface of the adhesive strip 1. The pressing mechanism applies vertical downward pressure to the adhesive strip 1, causing it to fit tightly against the inner wall of the slot, replacing the traditional fixing method that relies solely on the friction of the buckle. Compared to the traditional embedded buckle design, this expansion joint optimizes the ease of installation and disassembly, as well as the reliability of its fixation.
[0025] For example, the fixing or removal of the adhesive strip 1 is accomplished through the top pressing mechanism. To remove it, release the pressing mechanism, and the adhesive strip 1 can be easily removed from the slot; to install it, insert the adhesive strip 1 into the slot, and apply pressure through the pressing mechanism to secure it. This effectively reduces the need for tools to penetrate into the gaps, significantly simplifying the operation.
[0026] In one embodiment, the first pressing mechanism includes a first pressing block 41, a first protrusion 42, and a first screw 43. The first pressing block 41 is disposed on the top surface of the left beam connecting block. Multiple first protrusions 42 are provided, all of which are disposed on the bottom surface of the first pressing block 41. Multiple left openings are provided, and each left opening corresponds to one of the first protrusions 42. The first protrusions 42 pass through the left openings and press against the rubber strip 1. The first pressing block 41 is installed on the top surface of the left beam connecting block, and the bottom surface is machined with multiple first protrusions 42 that correspond one-to-one with the left openings. The top surface is provided with threaded holes that mate with the first screw 43. The first protrusion 42 is distributed on the bottom surface of the first pressure block 41. The first protrusion 42 is columnar or conical, and its size matches the left opening. The first protrusion 42 can pass through the left opening and directly contacts the surface of the adhesive strip 1. The first pressure block 41 has a first locking hole 431. The first screw 43 locks the first pressure block 41 and the left beam connecting block through the first locking hole 431. The first screw 43 is used to tighten or loosen to press or loosen the first pressure block 41. During installation, after the left end of the adhesive strip 1 is inserted into the left slot 220, the first protrusion 42 on the bottom surface of the first pressure block 41 is aligned with the left opening on the top of the left beam connecting block, so that the protrusion passes through the opening and contacts the surface of the adhesive strip 1. At this time, the pressure block and the top surface of the connecting block are initially in contact. Tighten the first screw 43. The screw pushes the first pressure block 41 downward, and the pressure block drives the first protrusion 42 on the bottom surface to move downward simultaneously, applying vertical downward pressure to the adhesive strip 1. When the rubber strip 1 is compressed, it undergoes a slight elastic deformation and fits tightly against the inner wall of the left slot 220.
[0027] In one embodiment, the second pressing mechanism includes a second pressing block 51, a second protrusion 52, and a second screw 53. The second pressing block 51 is disposed on the top surface of the right beam connecting block. Multiple second protrusions 52 are provided, and all the second protrusions 52 are disposed on the bottom surface of the second pressing block 51. Multiple right openings are provided, and the right openings and the second protrusions 52 are arranged in a one-to-one correspondence. The second protrusions 52 pass through the right openings and press against the rubber strip 1. A second locking hole is provided on the second pressing block 51, and the second screw 53 locks the second pressing block 51 and the right beam connecting block through the second locking hole.
[0028] During installation, after the right end of the adhesive strip 1 is inserted into the right slot 320 of the right beam connecting block, it is initially fixed in the preset position by friction. Align the second protrusion 52 on the bottom surface of the second pressure block 51 with the right opening on the top of the right beam connecting block, so that the protrusion passes through the opening and contacts the upper surface of the right end of the adhesive strip 1. Tighten the second screw 53, and the screw generates an axial force downward, pushing the second pressure block 51 to move vertically downward, thereby causing the second protrusion 52 on the bottom surface to press down on the adhesive strip 1 simultaneously.
[0029] The second pressing mechanism and the first pressing mechanism fix the left and right ends of the adhesive strip 1 respectively, forming a symmetrical structure, and the two can be adjusted independently.
[0030] In one embodiment, the top surfaces of both ends of the adhesive strip 1 are provided with recesses 11. The first pressing mechanism is inserted into the recess 11 through the left opening, and the second pressing mechanism is inserted into the recess 11 through the right opening. The shape of the recesses 11 on the top surfaces of both ends of the adhesive strip 1 matches the first pressing mechanism and the second pressing mechanism. In the above description, the first protrusion 42 and the second protrusion 52 match the corresponding recesses 11. For example, the recesses 11 are circular, square, or conical, etc., with a downward concave shape, which complements the shape of the corresponding first protrusion 42 and second protrusion 52.
[0031] When installing the rubber strip 1, the recess 11 can be used as an installation marker. Maintenance personnel only need to insert both ends of the rubber strip 1 into the slots and align the recess 11 with the left or right opening to quickly complete the alignment of the rubber strip 1 with the pressing mechanism, reducing the number of times the rubber strip 1 position needs to be adjusted and solving the problem of alignment difficulties caused by "blind operation" in small gaps.
[0032] The matching design of the first protrusion 42, the second protrusion 52 and the recess 11 can effectively improve the reliability of the fixation and enhance the resistance to loosening.
[0033] In one embodiment, the left beam connecting block includes a left anchor bracket 21 and a left beam body, the left beam body being mounted on the left anchor bracket 21, and the left slot 220 being mounted on the left beam body. This structure is simple and easy to install.
[0034] In one embodiment, the left beam body includes a first partition plate 221, a first top plate 222, a first bottom plate 223, and a first connecting plate 224. The first connecting plate 224 is disposed between the first top plate 222 and the first bottom plate 223, and the first connecting plate 224, the first top plate 222, and the first bottom plate 223 are fixedly connected to form an I-shape. The first partition plate 221 is disposed between the first top plate 222 and the first bottom plate 223, and the first partition plate 221 is located to the right of the first connecting plate 224. The first partition plate 221 and the first connecting plate 224 are fixedly connected, forming the left slot 220. The left opening is formed on the first top plate 222. The first top plate 222, the first bottom plate 223, and the first connecting plate 224 are fixedly connected to form an I-shaped cross-section. In this way, the bending strength and shear strength of the structure can be improved with less material usage. When vehicle load or bridge expansion and contraction forces act on the left beam connecting block, the I-beam can disperse the lateral stress through the first top plate 222 and the second bottom plate 323, and transmit the vertical force through the first connecting plate 224, thus avoiding local deformation.
[0035] In one embodiment, the right beam connecting block includes a right anchor bracket 31 and a right beam body, the right beam body being mounted on the right anchor bracket 31, and the right slot 320 being mounted on the right beam body. This structure is simple and easy to install.
[0036] In actual use, the left anchor bracket 21 and the right anchor bracket 31 are fixed to the first bridge and the second bridge respectively.
[0037] In one embodiment, the right beam body includes a second partition plate 321, a second top plate 322, a second bottom plate 323, and a second connecting plate 324. The second connecting plate 324 is disposed between the second top plate 322 and the second bottom plate 323, and the second connecting plate 324, the second top plate 322, and the second bottom plate 323 are fixedly connected to form an I-shape. The second partition plate 321 is disposed between the second top plate 322 and the second bottom plate 323, and is located to the left of the second connecting plate 324. The second partition plate 321 and the second connecting plate 324 are fixedly connected. The second connecting plate 324, the second top plate 322, and the second partition plate 321 form the right slot 320, and the right opening is formed on the second top plate 322. The second top plate 322, the second bottom plate 323, and the second connecting plate 324 are fixedly connected to form an I-shaped cross-section. In this way, the bending strength and shear strength of the structure can be improved with less material usage. When vehicle load or bridge expansion and contraction forces act on the right beam connecting block, the I-beam can disperse the lateral stress through the first top plate 222 and the second bottom plate 323, and transmit the vertical force through the second connecting plate 324, thus avoiding local deformation.
[0038] In one embodiment, the adhesive strip 1 includes a left end, a right end, and a connecting portion connecting the left end and the right end. The connecting portion is V-shaped, with the left end inserted into the left slot 220 and the right end inserted into the right slot 320. The connecting portion is V-shaped, with its two side walls forming a certain angle, for example, 30° to 60°. It has a deformable space that can be folded or unfolded. When the gap of the expansion joint widens, the included angle of the V-shaped connecting portion passively increases, and the two side walls unfold outward to fill the increase in gap width. When the gap of the expansion joint narrows, the included angle of the V-shaped connecting portion passively decreases, and the two side walls fold inward to adapt to the decrease in gap width.
[0039] In one embodiment, the top and / or bottom surfaces of the left end are provided with serrated anti-slip stripes, and the top and / or bottom surfaces of the right end are also provided with serrated anti-slip stripes. If the end of the rubber strip 1 is a smooth surface, and it is fixed only by the frictional force generated by the vertical pressure of the pressing mechanism, when the gap changes rapidly due to high-frequency vibration of the bridge or sudden temperature changes, the rubber strip 1 is prone to lateral movement within the slot, for example, the left end slides to the left and the right end shifts to the right, causing the sealing surface of the rubber strip 1 to misalign or partially detach from the left slot 220 or the right slot 320. With the setting of this embodiment, the roughness of the contact area between the rubber strip 1 at the serrated stripes and the inner wall corresponding to the left slot 220 or the right slot 320 can be effectively improved.
[0040] Of course, in certain environments, for ease of installation and disassembly, rubber strips without anti-slip stripes can also be used.
[0041] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.
Claims
1. An expansion joint structure, comprising a first bridge and a second bridge, wherein a gap is provided between the first bridge and the second bridge, characterized in that, The expansion joint also includes a rubber strip (1), a left beam connecting block, a right beam connecting block, a first pressing mechanism, and a second pressing mechanism. The left beam connecting block is provided with a left slot (220), and the right beam connecting block is provided with a right slot (320). The left slot (220) and the right slot (320) are arranged facing each other. The two ends of the rubber strip (1) are respectively inserted into the left slot (220) and the right slot (320). The top of the left beam connecting block is provided with a left opening that connects to the left slot (220). The right beam connecting block is provided with a left opening that connects to the left slot (220). The top of the connecting block has a right opening that connects to the right slot (320). Two pressing mechanisms are provided. One pressing mechanism is provided on the left beam connecting block and the other on the right beam connecting block. The left beam connecting block has a first pressing mechanism and the right beam connecting block has a second pressing mechanism. The first pressing mechanism passes through the left opening to press the rubber strip (1), and the second pressing mechanism passes through the right opening to press the rubber strip (1). The left beam connecting block and the right beam connecting block are respectively provided on the first bridge and the second bridge.
2. The expansion joint structure according to claim 1, characterized in that, The first pressing mechanism includes a first pressing block (41), a first protrusion (42), and a first screw (43). The first pressing block (41) is located on the top surface of the left beam connecting block. Multiple first protrusions (42) are provided, and all the first protrusions (42) are located on the bottom surface of the first pressing block (41). Multiple left openings are provided, and the left openings and the first protrusions (42) are provided in a one-to-one correspondence. The first protrusions (42) pass through the left openings and press against the rubber strip (1). A first locking hole (431) is provided on the first pressing block (41). The first screw (43) locks the first pressing block (41) and the left beam connecting block through the first locking hole (431).
3. The expansion joint structure according to claim 1, characterized in that, The second pressing mechanism includes a second pressing block (51), a second protrusion (52), and a second screw (53). The second pressing block (51) is located on the top surface of the right beam connecting block. Multiple second protrusions (52) are provided, and all the second protrusions (52) are located on the bottom surface of the second pressing block (51). Multiple right openings are provided, and the right openings and the second protrusions (52) are provided in a one-to-one correspondence. The second protrusions (52) pass through the right openings and press against the rubber strip (1). A second locking hole is provided on the second pressing block (51), and the second screw (53) locks the second pressing block (51) and the right beam connecting block through the second locking hole.
4. The expansion joint structure according to claim 1, 2, or 3, characterized in that, The top surfaces of both ends of the adhesive strip (1) are provided with recesses (11). The first pressing mechanism is inserted into the recess (11) through the left opening, and the second pressing mechanism is inserted into the recess (11) through the right opening.
5. The expansion joint structure according to claim 1, characterized in that, The left beam connecting block includes a left anchor bracket (21) and a left beam body. The left beam body is mounted on the left anchor bracket (21), and the left slot (220) is mounted on the left beam body.
6. The expansion joint structure according to claim 5, characterized in that, The main body of the left beam includes a first partition plate (221), a first top plate (222), a first bottom plate (223), and a first connecting plate (224). The first connecting plate (224) is located between the first top plate (222) and the first bottom plate (223). The first connecting plate (224), the first top plate (222), and the first bottom plate (223) are fixedly connected to form an I-shape. The first partition plate (221) is located between the first top plate (222) and the first bottom plate (223). The first partition plate (221) is located on the right side of the first connecting plate (224). The first partition plate (221) and the first connecting plate (224) are fixedly connected. The first connecting plate (224), the first top plate (222), and the first partition plate (221) form the left slot (220). The left opening is opened on the first top plate (222).
7. The expansion joint structure according to claim 1, characterized in that, The right beam connecting block includes a right anchor bracket (31) and a right beam body. The right beam body is mounted on the right anchor bracket (31), and the right slot (320) is mounted on the right beam body.
8. The expansion joint structure according to claim 7, characterized in that, The main body of the right beam includes a second partition plate (321), a second top plate (322), a second bottom plate (323), and a second connecting plate (324). The second connecting plate (324) is located between the second top plate (322) and the second bottom plate (323). The second connecting plate (324), the second top plate (322), and the second bottom plate (323) are fixedly connected to form an I-shape. The second partition plate (321) is located between the second top plate (322) and the second bottom plate (323). The second partition plate (321) is located on the left side of the second connecting plate (324). The second partition plate (321) and the second connecting plate (324) are fixedly connected. The second connecting plate (324), the second top plate (322), and the second partition plate (321) form the right slot (320). The right opening is opened on the second top plate (322).
9. The expansion joint structure according to claim 1, characterized in that, The adhesive strip (1) includes a left end, a right end, and a connecting part that connects the left end and the right end. The connecting part is V-shaped. The left end is inserted into the left slot (220), and the right end is inserted into the right slot (320).
10. The expansion joint structure according to claim 9, characterized in that, The top and / or bottom surfaces of the left end are provided with serrated anti-slip stripes, and the top and / or bottom surfaces of the right end are provided with serrated anti-slip stripes.