Maintainable and replaceable expansion joint

Abstract

The utility model relates to a maintainable and replaceable expansion joint which comprises two connecting parts and an elastic rubber strip part, the two connecting parts are symmetrically distributed on the two opposite sides of the elastic rubber strip part, and the two connecting parts are connected with the two ends of the top of the elastic rubber strip part respectively. The elastic rubber strip part comprises a first bearing piece, a second bearing piece, a first structural piece and a second structural piece, the lower end of the first structural piece and the lower end of the second structural piece are buckled with each other, and the top of the first structural piece and the top of the second structural piece both protrude upwards by a certain height. Through cooperative arrangement of a first bearing piece, a second bearing piece, a first structural piece and a second structural piece in the elastic rubber strip part, the elastic rubber strip part of the component, capable of generating deformation, of the expansion joint can be disassembled and replaced at the corresponding part after being used for a long time and generating excessive deformation, so that the use effect of the expansion joint is conveniently kept; and high cost caused by complete replacement of the whole expansion joint is avoided.

Description

Technical Field

[0001] This utility model relates to the field of expansion joint technology, specifically a repairable and replaceable expansion joint. Background Technology

[0002] Expansion joints are structural joints installed between the ends of two beams, between the beam end and the abutment, or at the hinged joints of a bridge to accommodate the deformation of bridge decks and other facilities.

[0003] For example, a utility model patent with Chinese patent publication number CN220413994U proposes a waterproof expansion joint. It improves the shape and structure of the F-shaped steel and elastic rubber strip, increasing sealing points and enhancing waterproof performance. This prevents water from corroding the F-shaped steel and extends its service life. However, this type of waterproof expansion joint still has the following drawbacks: When used outdoors for extended periods, the elastic rubber strip is affected by external environmental factors and its own aging, leading to excessive deformation and cracking after a certain period. This affects the normal use of the expansion joint, requiring maintenance personnel to completely remove and replace it, resulting in high maintenance costs. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This invention provides a repairable and replaceable expansion joint, which solves the problem that the elastic rubber strips in existing expansion joints require maintenance personnel to completely remove and replace them, resulting in high maintenance costs.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a repairable and replaceable expansion joint, comprising two connecting parts and an elastic rubber strip part. The two connecting parts are symmetrically distributed on opposite sides of the elastic rubber strip part, and the two connecting parts are respectively connected to the two ends of the top of the elastic rubber strip part. The elastic rubber strip part includes a first support member, a second support member, a first structural member, and a second structural member. The lower ends of the first structural member and the second structural member are interlocked with each other. The tops of the first structural member and the second structural member both protrude upwards to a certain height, and the upper ends of the first structural member and the second structural member are detachably connected to the first support member and the second support member respectively by steel nails. The first support member and the second support member are configured with a mutually symmetrical structure, and the opposite sides of the first support member and the second support member are respectively inserted into the two connecting parts and secured thereto.

[0008] Preferably, the first support member includes a plug-in section, a positioning section, and a connecting and mating section. The plug-in section is inserted into the connecting part on one side facing the adjacent connecting part and is locked in place therewith. The positioning section is formed on the other side of the plug-in section and is arc-shaped. The connecting and mating section is formed at the lower end of the positioning section and extends toward the adjacent connecting part to contact it.

[0009] In a further preferred embodiment, the first structural member includes a first vertical segment, a first arc segment, a plurality of first positioning strips, and a first fixing segment. The first fixing segment is formed at the top of the first vertical segment, and the first fixing segment is connected to the connecting and mating segment by steel nails. The first arc segment is formed at the bottom of the first vertical segment, and the plurality of first positioning strips are formed at intervals on the concave surface of the first arc segment.

[0010] In a further preferred embodiment, the second structural member includes a second vertical segment, a second arc-shaped segment, a plurality of second positioning strips, and a second fixing segment. The second fixing segment is formed at the top of the second vertical segment and is connected to the bottom of the adjacent second support member by steel nails. The second arc-shaped segment is formed at the bottom of the second vertical segment, and a plurality of second positioning strips are spaced apart on the concave surface of the second arc-shaped segment. The plurality of second positioning strips are respectively inserted into the gaps between the plurality of first positioning strips, and the second arc-shaped segment is fastened to the top of the first arc-shaped segment.

[0011] In a further preferred embodiment, the connecting portion includes a basic connecting section, an upper limit section, a lower limit section, and a side positioning protrusion. The upper limit section and the lower limit section are both formed on the top section of the basic connecting section, and there is a gap between the upper limit section and the lower limit section that is adapted to the insertion section. An arc-shaped positioning protrusion is formed on the side of the lower limit section facing away from the basic connecting section. The arc-shaped positioning protrusion limits the first support member or the second support member. The side positioning protrusion is formed at the bottom of the lower limit section and is used to limit the first support member and the first structural member connected below it, or the second support member and the second structural member connected below it.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a repairable and replaceable expansion joint, which has the following features:

[0014] Beneficial effects:

[0015] In this invention, the first support member, the second support member, the first structural member, and the second structural member in the elastic rubber strip are arranged in a coordinated manner, so that the elastic rubber strip of the expansion joint, which can deform, can be disassembled and replaced after excessive deformation over a long period of use. This makes it convenient to maintain the performance of the expansion joint and avoids the high cost of completely replacing the entire expansion joint. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the cross-sectional structure of a repairable and replaceable expansion joint according to the implementation plan;

[0017] Figure 2 This is a structural schematic diagram of the connection part according to the implementation plan;

[0018] Figure 3 This is a structural schematic diagram of the elastic rubber strip according to the implementation plan;

[0019] Figure 4 This is a structural schematic diagram of the first support component according to the implementation plan;

[0020] Figure 5 This is a structural schematic diagram of the first structural component according to the implementation plan;

[0021] Figure 6 This is a structural diagram of the second component according to the implementation plan.

[0022] In the diagram: 10. Connecting part; 11. Basic connecting section; 12. Upper limit section; 13. Lower limit section; 131. Arc-shaped positioning protrusion; 14. Side positioning protrusion; 20. Elastic rubber strip; 21. First support member; 211. Insertion section; 212. Positioning section; 213. Connecting and mating section; 22. Second support member; 23. First structural member; 231. First vertical section; 232. First arc-shaped section; 233. First positioning strip; 234. First fixing section; 24. Second structural member; 241. Second vertical section; 242. Second arc-shaped section; 243. Second positioning strip; 244. Second fixing section. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1 and Figure 3A repairable and replaceable expansion joint includes two connecting parts 10 and an elastic rubber strip part 20. The two connecting parts 10 are respectively connected to the road / bridge connection foundation and are symmetrically distributed on opposite sides of the elastic rubber strip part 20. The two connecting parts 10 can also be connected to the two ends of the top of the elastic rubber strip part 20. The elastic rubber strip part 20 includes a first support member 21, a second support member 22, a first structural member 23, and a second structural member 24. The lower ends of the first structural member 23 and the second structural member 24 are interlocked, and the tops of both the first structural member 23 and the second structural member 24 protrude upwards to a certain height, allowing the upper ends of the first structural member 23 and the second structural member 24 to align and contact with the first support member 21 and the second support member 22, respectively, and be detachably connected together by steel nails. The first support member 21 and the second support member 22 are configured as a symmetrical structure, and the opposite sides of the first support member 21 and the second support member 22 are respectively inserted into the two connecting parts 10 and secured therewith. When replacing or maintaining the elastic rubber strip 20, the first support member 21, the second support member 22, the first structural member 23, or the second structural member 24 in the elastic rubber strip 20 can be disassembled and replaced according to the damage.

[0025] See Figure 4 The first support member 21 includes a plug-in section 211, a positioning section 212, and a connecting and mating section 213. The plug-in section 211 can be inserted into and secured to the adjacent connecting portion 10 on one side. The positioning section 212 is formed on the other side of the plug-in section 211 and extends downward. The positioning section 212 is arc-shaped, and the connecting and mating section 213 is formed at the lower end of the positioning section 212 and extends towards and contacts the adjacent connecting portion 10.

[0026] See Figure 2 The connecting portion 10 includes a basic connecting section 11, an upper limit section 12, a lower limit section 13, and a side positioning protrusion 14. The upper limit section 12 and the lower limit section 13 are both formed on the top section of the basic connecting section 11, and there is a gap between the upper limit section 12 and the lower limit section 13 that is adapted to the insertion section 211, allowing either the first support member 21 or the second support member 22 to be inserted and secured therein. An arc-shaped positioning protrusion 131 is formed on the side of the lower limit section 13 facing away from the basic connecting section 11. The arc-shaped positioning protrusion 131 can extend into the gap between the positioning section 212 and the connecting mating section 213 and abut against the positioning section 212, thereby limiting the positioning of either the first support member 21 or the second support member 22. The side positioning protrusion 14 is formed at the bottom of the lower limiting section 13, and the side positioning protrusion 14 abuts against the side end face of the connecting mating section 213, so that the side positioning protrusion 14 can limit the first support member 21 and the first structural member 23 connected below it or the second support member 22 and the second structural member 24 connected below it.

[0027] See Figure 5 and Figure 6 The first structural member 23 includes a first vertical section 231, a first arc-shaped section 232, a plurality of first positioning strips 233, and a first fixing section 234. The second structural member 24 includes a second vertical section 241, a second arc-shaped section 242, a plurality of second positioning strips 243, and a second fixing section 244. The first fixing section 234 is formed at the top of the first vertical section 231 and is connected to the connecting mating section 213 by steel nails; the second fixing section 244 is formed at the top of the second vertical section 241 and is connected to the bottom of the adjacent second support member 22 by steel nails. The first arc-shaped segment 232 is formed at the bottom of the first vertical segment 231, and a plurality of first positioning strips 233 are formed at intervals on the concave surface of the first arc-shaped segment 232. The second arc-shaped segment 242 is formed at the bottom of the second vertical segment 241, and a plurality of second positioning strips 243 are formed at intervals on the concave surface of the second arc-shaped segment 242. After installation, the first structural member 23 and the second structural member 24 can allow the plurality of second positioning strips 243 to be inserted into the gaps between the plurality of first positioning strips 233 respectively, and there is a certain amount of deformation space between the first structural member 23 and the second structural member 24. In addition, the second arc-shaped segment 242 can be fastened to the top of the first arc-shaped segment 232.

[0028] By cooperating with the first support member 21, the second support member 22, the first structural member 23, and the second structural member 24 in the elastic rubber strip part 20, the elastic rubber strip part 20, which is capable of deformation, can be disassembled and replaced after excessive deformation occurs over a long period of use. This facilitates maintaining the performance of the expansion joint and avoids the high cost of completely replacing the entire expansion joint.

[0029] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods. They will not be described in detail here. 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 variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A repairable and replaceable expansion joint, comprising two connecting parts (10) and an elastic rubber strip part (20), wherein the two connecting parts (10) are symmetrically distributed on opposite sides of the elastic rubber strip part (20), and the two connecting parts (10) are respectively connected to the two ends of the top of the elastic rubber strip part (20), characterized in that, The elastic rubber strip (20) includes a first support (21), a second support (22), a first structural member (23), and a second structural member (24). The lower ends of the first structural member (23) and the second structural member (24) are fastened to each other. The tops of the first structural member (23) and the second structural member (24) are both raised to a certain height. The upper ends of the first structural member (23) and the second structural member (24) are detachably connected to the first support (21) and the second support (22) respectively by steel nails. The first support (21) and the second support (22) are set to a symmetrical structure. The opposite sides of the first support (21) and the second support (22) are respectively inserted into two connecting parts (10) and locked together.

2. The repairable and replaceable expansion joint according to claim 1, characterized in that: The first support member (21) includes a plug section (211), a positioning section (212), and a connecting and mating section (213). The plug section (211) is inserted into the connecting part (10) on one side facing the adjacent connecting part (10) and is locked to it. The positioning section (212) is formed on the other side of the plug section (211) and is arc-shaped. The connecting and mating section (213) is formed at the lower end of the positioning section (212) and extends towards the adjacent connecting part (10) to contact it.

3. A repairable and replaceable expansion joint according to claim 2, characterized in that: The first structural member (23) includes a first vertical section (231), a first arc-shaped section (232), a plurality of first positioning strips (233) and a first fixing section (234). The first fixing section (234) is formed at the top of the first vertical section (231), and the first fixing section (234) is connected to the connecting and mating section (213) by steel nails. The first arc-shaped section (232) is formed at the bottom of the first vertical section (231), and a plurality of first positioning strips (233) are formed at intervals on the concave surface of the first arc-shaped section (232).

4. A repairable and replaceable expansion joint according to claim 3, characterized in that: The second structural member (24) includes a second vertical section (241), a second arc-shaped section (242), a plurality of second positioning strips (243), and a second fixing section (244). The second fixing section (244) is formed at the top of the second vertical section (241), and the second fixing section (244) is connected to the bottom of the adjacent second support member (22) by steel nails. The second arc-shaped section (242) is formed at the bottom of the second vertical section (241), and a plurality of second positioning strips (243) are formed at intervals on the concave surface of the second arc-shaped section (242).

5. A repairable and replaceable expansion joint according to claim 4, characterized in that: Several second positioning strips (243) are respectively inserted into the gaps between several first positioning strips (233), and the second arc segment (242) is fastened to the top of the first arc segment (232).

6. A repairable and replaceable expansion joint according to any one of claims 1-5, characterized in that: The connecting portion (10) includes a basic connecting section (11), an upper limit section (12), a lower limit section (13), and a side positioning protrusion (14). The upper limit section (12) and the lower limit section (13) are both formed on the top section of the basic connecting section (11), and there is a gap between the upper limit section (12) and the lower limit section (13) that is adapted to the insertion section (211). The lower limit section (13) faces away from the basic connecting section (11). An arc-shaped positioning protrusion (131) is formed on one side, which limits the first support (21) or the second support (22). The side positioning protrusion (14) is formed at the bottom of the lower limiting section (13) and is used to limit the first support (21) and the first structural member (23) connected below it or the second support (22) and the second structural member (24) connected below it.

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