Steel trestle abutment

Abstract

The utility model discloses a steel trestle bridge abutment, which relates to the field of bridge abutments and comprises a stepped base, a retaining wall is integrally formed at the top of the base, a support wall is integrally formed at the back end of the retaining wall, a lug wall protruding outwards is integrally formed above the front end of the retaining wall, and an abutment cap is integrally formed at the top end of the support wall. A connecting mechanism is arranged at the top of the abutment cap and in the retaining wall, and a buffering mechanism is connected into the connecting mechanism. The buffer mechanism and the connecting mechanism are arranged, so that the buffer rubber and the butt joint rubber can be conveniently replaced, the buffer performance of the buffer mechanism is maintained, and the effect of convenient replacement is achieved.

Description

Technical Field

[0001] This utility model relates to the field of bridge abutments, specifically a steel trestle bridge abutment. Background Technology

[0002] A bridge abutment is a structure located at both ends of a bridge that supports the bridge's superstructure and connects to the embankment.

[0003] In the existing technology, the platform cap is connected to the bridge section of the steel trestle. A buffer layer is usually set at the connection point. The buffer layer is usually made of rubber. In the existing technology, the buffer layer is usually fixed to the platform cap with glue. Before bonding, the platform cap needs to be cleaned to avoid the problem of insufficient adhesion caused by impurities. However, during the long-term use of the device, the buffer rubber gradually reduces its buffering performance as the usage time increases.

[0004] In the existing technology, when replacing the cushioning rubber, it is necessary to use a shovel to remove the glued cushioning rubber, which is a rather inconvenient operation method. Utility Model Content

[0005] The purpose of this utility model is to provide a steel trestle bridge platform in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steel trestle bridge abutment, comprising a stepped base, a retaining wall integrally formed on the top of the base, a supporting wall integrally formed on the back end of the retaining wall, an outwardly protruding ear wall integrally formed above the front end of the retaining wall, a platform cap integrally formed on the top of the supporting wall, and a connecting mechanism provided between the top of the platform cap and the interior of the retaining wall, wherein a buffer mechanism is connected within the connecting mechanism.

[0007] As a further embodiment of this utility model: the connecting mechanism includes a threaded sleeve pre-embedded inside the retaining wall, the front end of the threaded sleeve having an inwardly recessed threaded hole, the inner wall of the threaded sleeve being threadedly connected to a fixing rod, the fixing rod and the threaded connection position of the threaded sleeve having a threaded connection part formed, the connecting mechanism also includes an insertion groove opened at the top of the cap and recessed downward, the top and front end of the insertion groove both having an open structure.

[0008] As a further embodiment of this utility model: the buffer mechanism includes an insert rubber that is inserted into the inner wall of the insert groove, the top of the insert rubber is integrally formed with a buffer rubber that extends to both sides, the bottom of the two sides of the buffer rubber has an upwardly recessed bottom groove, and there is a gap between the bottom of the two sides of the buffer rubber and the top of the platform cap.

[0009] As a further embodiment of this utility model: the buffer mechanism further includes a sealing rubber fixedly connected to the top of the platform cap. The sealing rubber is located in the gap between the bottom end of the buffer rubber extension and the top of the platform cap. The top of the sealing rubber is integrally formed with a mating rubber that inserts into the bottom groove. The bottom end of the buffer rubber extension and located on the outside of the bottom groove is provided with an upwardly recessed triangular groove. The tops of both sides of the sealing rubber are integrally formed with water-blocking rubber that fits into the inner wall of the triangular groove. The outer side of the water-blocking rubber is a guide slope that slopes outward and downward.

[0010] As a further embodiment of this utility model: the inserting rubber has a round hole inside for the fixing rod to be inserted, the front end of the fixing rod is integrally formed with a hexagonal head, and the inside of the cap has a mating hole at the front end of the round hole, the mating hole being used to accommodate the hexagonal head.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting a buffer mechanism and a connecting mechanism, the buffer rubber and the mating rubber can be easily replaced to maintain the buffer performance of the buffer mechanism and achieve the effect of easy replacement. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 For the present utility model Figure 1 Enlarged view of a portion of point A in the middle;

[0014] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0015] Figure 4 For the present utility model Figure 3 Enlarged view of section B in the middle. In the figure: 1. Base; 2. Retaining wall; 3. Supporting wall; 4. Cap; 5. Ear wall; 6. Insert rubber; 7. Insert groove; 8. Buffer rubber; 9. Bottom groove; 10. Sealing rubber; 11. Butt joint rubber; 12. Water-blocking rubber; 13. Triangular groove; 14. Threaded sleeve; 15. Fixing rod. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-4In this embodiment of the utility model, a steel trestle bridge platform includes a stepped base 1, a retaining wall 2 integrally formed on the top of the base 1, a supporting wall 3 integrally formed on the back end of the retaining wall 2, an outwardly protruding ear wall 5 integrally formed on the upper front end of the retaining wall 2, a platform cap 4 integrally formed on the top of the supporting wall 3, and a connecting mechanism is provided between the top of the platform cap 4 and the interior of the retaining wall 2, and a buffer mechanism is connected inside the connecting mechanism.

[0018] In this embodiment: First, a steel reinforcement frame is welded, and after welding, a casting template is erected on the outside of the steel reinforcement frame. After the template is erected, concrete is poured into the template to form a concrete bridge abutment. After the concrete solidifies, the template is removed. Then, the buffer mechanism is connected to the connecting mechanism cap 4. After the connection is completed, the buffer mechanism is effectively fixed and can effectively prevent loosening, ensuring the stability of the buffer mechanism during use after installation.

[0019] Please refer to this carefully. Figure 1 The connecting mechanism includes a threaded sleeve 14 pre-embedded inside the retaining wall 2. The front end of the threaded sleeve 14 has an inwardly recessed threaded hole. The inner wall of the threaded sleeve 14 is threadedly connected to a fixing rod 15. The threaded connection position between the fixing rod 15 and the threaded sleeve 14 is formed with a threaded connection part. The connecting mechanism also includes an insertion groove 7 that is opened at the top of the cap 4 and is recessed downward. The top and front end of the insertion groove 7 are both open.

[0020] In this embodiment: when the casting template is erected, the template at the top of the cap 4 has protrusions for forming the insertion groove 7. Therefore, the insertion groove 7 does not need to be cut and formed after the casting is completed, and the inner wall of the insertion groove 7 is flat and smooth, without disordered protrusions.

[0021] Before pouring, the outer wall of the threaded sleeve 14 is fixed to the steel frame (e.g., by welding). During the concrete pouring process, the threaded sleeve 14 will not change its current position. This method eliminates the need for installation after pouring, which is more convenient.

[0022] Please refer to this carefully. Figure 2 and Figure 4The buffer mechanism includes an inserting rubber 6 inserted into the inner wall of the inserting groove 7. The top of the inserting rubber 6 is integrally formed with a buffer rubber 8 extending to both sides. The bottom of the two sides of the buffer rubber 8 is provided with an upwardly recessed bottom groove 9. There is a gap between the bottom of the two sides of the buffer rubber 8 and the top of the cap 4. The buffer mechanism also includes a sealing rubber 10 fixedly connected to the top of the cap 4. The sealing rubber 10 is located in the gap between the bottom of the buffer rubber 8 and the top of the cap 4. The top of the sealing rubber 10 is integrally formed with a mating rubber 11 that inserts into the bottom groove 9. The bottom of the buffer rubber 8 and the outside of the bottom groove 9 is provided with an upwardly recessed triangular groove 13. The top of the two sides of the sealing rubber 10 is integrally formed with a water-blocking rubber 12 that fits into the inner wall of the triangular groove 13. The outer side of the water-blocking rubber 12 is a guide slope that slopes outward and downward.

[0023] In this embodiment: When installing the buffer mechanism, firstly, the top of the cap 4 is cleaned, and an adhesive for bonding rubber and concrete is applied to the top of the sealing rubber 10. The bottom edge of the sealing rubber 10 is aligned with the top opening edge of the insertion groove 7, and then pressed to make it firmly connected. After the sealing rubber 10 is firmly connected, the insertion rubber 6 is aligned with the insertion groove 7 and inserted. The insertion rubber 6 drives the buffer rubber 8 to slide axially synchronously. The buffer rubber 8 drives the bottom groove 9 and the triangular groove 13 to be inserted with the water-blocking rubber 12 and the connecting rubber 11 respectively until they are completely inserted. Then, the position of the insertion rubber 6 is fixed by the installation connection mechanism to ensure that the buffer mechanism will not shift or fall off under any circumstances, thus ensuring its service life.

[0024] This type of buffer mechanism design allows for easy replacement of the top buffer rubber 8 when it is damaged and unable to provide effective buffering, thus ensuring buffering performance. Secondly, the design of the sealing rubber 10 and the water-blocking rubber 12 can prevent rainwater from seeping in, thereby avoiding rust caused by rainwater seepage into the connecting mechanism and avoiding the problem of inconvenience in disassembly and replacement due to rust.

[0025] Please refer to this carefully. Figure 2 and Figure 4 The insert rubber 6 has a round hole for inserting the fixing rod 15. The front end of the fixing rod 15 is integrally formed with a hexagonal head. The inside of the cap 4 has a mating hole at the front end of the round hole, which is used to accommodate the hexagonal head.

[0026] In this embodiment: After the buffer mechanism is inserted, the fixing rod 15 is inserted into the round hole of the insertion rubber 6 until the threaded connection part of the fixing rod 15 is aligned with the internal threaded hole of the screw sleeve 14. At this time, use an Allen wrench to drive the hexagonal head to rotate, thereby rotating the fixing rod 15 and completing the threaded connection between the threaded connection part of the fixing rod 15 and the screw sleeve 14. After the fixing rod 15 has been fully rotated, the hexagonal head of the fixing rod 15 is completely located in the mating hole. The reverse operation can be used to disassemble.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A steel trestle abutment comprising a stepped base (1), characterised in that, The top of the base (1) is integrally formed with a retaining wall (2), the back end of the retaining wall (2) is integrally formed with a support wall (3), the front end of the retaining wall (2) is integrally formed with an outwardly protruding ear wall (5), the top end of the support wall (3) is integrally formed with a cap (4), the top of the cap (4) and the inside of the retaining wall (2) are provided with a connecting mechanism, and the connecting mechanism is connected with a buffering mechanism; The connecting mechanism comprises a screw sleeve (14) embedded in the inside of the retaining wall (2), a threaded hole recessed inward is formed in the front end of the screw sleeve (14), a fixed rod (15) is threadedly connected with the inner wall of the screw sleeve (14), a threaded connection part is formed at the position where the fixed rod (15) is threadedly connected with the screw sleeve (14), and the connecting mechanism further comprises a plug-in groove (7) recessed downward and formed in the top end of the cap (4), and the top and the front end of the plug-in groove (7) are both in an open structure. The buffering mechanism comprises a plug-in rubber (6) plugged into the inner wall of the plug-in groove (7), the top end of the plug-in rubber (6) is integrally formed with buffer rubbers (8) expanding to both sides, bottom grooves (9) recessed upward are formed in the bottom ends of the expansion parts of the buffer rubbers (8), and gaps are formed between the bottom ends of the expansion parts of the buffer rubbers (8) and the top end of the cap (4).

2. A steel trestle abutment according to claim 1, characterized in that The buffering mechanism further comprises a sealing rubber (10) fixedly connected to the top end of the cap (4), the sealing rubber (10) is located in the gap between the expansion part bottom end of the buffer rubber (8) and the top of the cap (4), the top end of the sealing rubber (10) is integrally formed with an abutting rubber (11) plugged into the bottom groove (9), a triangular groove (13) recessed upward is formed in the expansion part bottom end of the buffer rubber (8) and located outside the bottom groove (9), and water blocking rubbers (12) are integrally formed on the top of both sides of the sealing rubber (10) and plugged into the inner wall of the triangular groove (13), and the outer side of the water blocking rubber (12) is inclined downward and outward.

3. A steel trestle abutment according to claim 2, characterized in that A circular hole is formed in the inside of the plug-in rubber (6) for inserting the fixed rod (15), a hexagonal head is integrally formed in the front end of the fixed rod (15), and a abutting hole is formed in the front end of the circular hole in the inside of the cap (4) for accommodating the hexagonal head.

Images