Prefabricated tool type steel curtain board at expansion joint of anti-collision wall of bridge

Abstract

The utility model relates to the technical field of bridge engineering protection, and discloses a bridge anti-collision wall expansion joint prefabricated tool type steel curtain board which comprises a first steel curtain board and a second steel curtain board, notches are formed in the first steel curtain board and the second steel curtain board, and mounting grooves are formed in the upper ends and the lower ends of the outer sides of the first steel curtain board and the second steel curtain board; and a T-shaped connecting rod is inserted into the notch. According to the prefabricated tool type steel curtain board at the expansion joint of the anti-collision wall of the bridge, a plurality of assemblies can be produced in advance in a prefabricated mode and installed at the expansion joint subsequently, installation is convenient, meanwhile, the construction period is shortened, the construction efficiency is improved, the situation of expansion deformation of the expansion joint can be adapted through the arrangement of the notches, and the construction period is shortened. The connecting effect of the steel curtain board assembly and the anti-collision wall is not affected, the connecting stability is improved, meanwhile, the sealing strips are arranged on the inner side edges of the first steel curtain board and the second steel curtain board, the sealing performance of the connecting position of the first steel curtain board and the second steel curtain board can be improved, and sundries are prevented from entering the expansion joint.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering protection technology, specifically to a prefabricated tool-type steel shield at the expansion joint of a bridge crash barrier. Background Technology

[0002] Bridge crash barriers are important safety protection structures for bridges. Expansion joints within these barriers are crucial structural components, corresponding to the main bridge expansion joints. They play a vital role in the bridge's safety and durability. During use, bridges experience expansion and contraction due to factors such as temperature changes, concrete shrinkage and creep, and vehicle loads. Expansion joints provide the crash barriers with deformation space, preventing cracks and damage caused by the inability to expand and contract freely, thus ensuring the crash barriers function properly.

[0003] Appropriate protective components need to be installed at expansion joints to prevent debris from falling into the expansion joints and affecting the normal expansion and contraction of the bridge structure, while also preventing vehicles from hitting the expansion joints and causing damage.

[0004] Existing expansion joint protection structures mostly use cast-in-place concrete shields or simple metal covers. Cast-in-place concrete shields have a long construction cycle, requiring a series of procedures such as formwork, pouring, and curing, resulting in low construction efficiency and difficulty in quality control. Simple metal covers are not securely installed and are prone to loosening and falling off under external forces such as vehicle impacts and wind, resulting in poor protective effect and an inability to adapt to the deformation requirements of expansion joints, leading to a short service life.

[0005] Therefore, it is necessary to propose a prefabricated tool-type steel shield at the expansion joint of the bridge crash barrier. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a prefabricated tool-type steel shield for the expansion joint of a bridge crash barrier. This tool allows for the prefabrication of steel shield components, which can then be quickly installed on-site for protection. Furthermore, it adapts to the expansion and contraction requirements of the bridge crash barrier, thus solving the problems mentioned in the background art.

[0007] This utility model provides the following technical solution: a prefabricated tool-type steel cover plate at the expansion joint of a bridge crash barrier, comprising steel cover plate one and steel cover plate two:

[0008] Both the steel shielding plate one and the steel shielding plate two are provided with slots, and both the upper and lower outer sides of the steel shielding plate one and the steel shielding plate two are provided with mounting slots.

[0009] A T-shaped connecting rod is inserted into the slot. An elastic circular part is provided on the outer surface of the end of the T-shaped connecting rod. A threaded line is provided inside the elastic circular part. A threaded groove is opened on the outer surface of the T-shaped connecting rod. The T-shaped connecting rod and the elastic circular part are threadedly connected by the cooperation of the threaded line and the threaded groove.

[0010] Preferably, an outer cover plate is inserted into the inside of the mounting groove, and sealing rings are sleeved at both ends of the outer cover plate. The outer surface of the sealing rings is tightly fitted with the inside of the mounting groove, and a receiving groove is opened on the inner side of the outer cover plate, with the groove opening located inside the receiving groove.

[0011] Preferably, the end of the first steel cover plate is provided with a slot, and the end of the second steel cover plate is fixedly connected with a plug, the plug being inserted into the slot.

[0012] Preferably, a bolt is threadedly connected to the middle of the slot, and a connection port is provided at the middle of the insert block, with the bolt inserted into the interior of the connection port.

[0013] Preferably, the inner edges of the first and second steel shields are bonded with sealing strips, which are made of EPDM rubber.

[0014] Preferably, the sealing ring is made of EPDM rubber.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This type of prefabricated tool-type steel shield at the expansion joint of a bridge crash barrier involves creating corresponding installation holes in the crash barrier. The required elastic circular fittings are inserted into these holes. Steel shield one and steel shield two are joined on both sides of the expansion joint and connected by bolts. The center of the slots on steel shield one and steel shield two aligns with the installation holes in the crash barrier. The required T-shaped connecting rod is passed through the slots and connected to the elastic circular fitting through the engagement of the threaded wire and thread groove. The expansion of the elastic circular fitting ensures that the T-shaped connecting rod is tightly connected inside the installation hole. After completing the installation of steel shield one and steel shield two, the structure and its components can all be prefabricated and then installed at the expansion joint. This facilitates installation, shortens the construction cycle, and improves construction efficiency. The groove design can accommodate the expansion and contraction deformation of the expansion joint without affecting the connection between the steel shield components and the crash barrier, thus improving the stability of the connection. At the same time, sealing strips are installed on the inner edges of steel shield one and steel shield two to improve the sealing at the connection point and prevent debris from entering the expansion joint. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between steel shield one and steel shield two of this utility model;

[0020] Figure 3 This is a schematic diagram of the outer cover plate connection structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the T-shaped connecting rod part of the present invention.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Steel cover plate; 110. Slot; 120. Bolt;

[0024] 2. Steel cover plate two; 210. Insert block; 220. Connecting port;

[0025] 3. Outer cover plate; 310. Mounting groove; 320. Sealing ring;

[0026] 4. Sealing strip;

[0027] 5. Groove; 510. T-shaped connecting rod; 520. Elastic round part; 530. Threaded wire; 540. Threaded groove. Detailed Implementation

[0028] 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.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Please see Figure 1 , Figure 2 and Figure 3Prefabricated tool-type steel shields at the expansion joints of bridge crash barriers, including steel shield 1 and steel shield 2:

[0031] Both steel shield 1 and steel shield 2 are provided with slots 5, and both the upper and lower outer sides of steel shield 1 and steel shield 2 are provided with mounting slots 310.

[0032] A T-shaped connecting rod 510 is inserted into the slot 5. An elastic circular part 520 is provided on the outer surface of the end of the T-shaped connecting rod 510. A threaded wire 530 is provided inside the elastic circular part 520. A threaded groove 540 is opened on the outer surface of the T-shaped connecting rod 510. The T-shaped connecting rod 510 and the elastic circular part 520 are connected by threaded connection through the threaded wire 530 and threaded groove 540. A slot 110 is opened at the end of the steel cover plate 1. A plug block 210 is fixedly connected to the end of the steel cover plate 2. The plug block 210 is inserted into the slot 110. A bolt 120 is threadedly connected to the middle position of the slot 110. A connection port 220 is opened at the middle position of the plug block 210. The bolt 120 is inserted into the connection port 220.

[0033] During installation, corresponding mounting holes are made on the crash barrier, and the required elastic circular parts 520 are inserted into the mounting holes. Steel shield 1 and steel shield 2 are joined on both sides of the expansion joint and connected with bolts 120. The center of the slots 5 on steel shield 1 and steel shield 2 are aligned with the mounting holes on the crash barrier. The required T-shaped connecting rods 510 are passed through the slots 5 and connected to the elastic circular parts 520 through the cooperation of the threaded wires 530 and the threaded grooves 540. By expanding the elastic circular parts 520, the T-shaped connecting rods 510 are tightly connected inside the mounting holes, thereby completing the installation of steel shield 1 and steel shield 2.

[0034] As a preferred technical solution of this utility model, an outer cover plate 3 is inserted into the inside of the mounting groove 310, and sealing rings 320 are sleeved on both ends of the outer cover plate 3. The outer surface of the sealing rings 320 is tightly fitted with the inside of the mounting groove 310. A receiving groove is opened on the inner side of the outer cover plate 3, and the groove opening 5 is set inside the receiving groove.

[0035] After steel shield 1 and steel shield 2 are installed on both sides of the expansion joint, the required sealing rings 320 are fitted onto both ends of the outer shield 3. The two ends of the outer shield 3 are inserted into the interior of the mounting groove 310, thereby shielding the position of the groove 5 through the outer shield 3 to prevent debris from entering, and at the same time strengthening the structural strength of the steel shield assembly.

[0036] As a preferred technical solution of this utility model, a sealing strip 4 is bonded to the inner edge of the steel cover plate 1 and the steel cover plate 2. The sealing strip 4 is made of EPDM rubber.

[0037] The installation of sealing strip 4 enhances the sealing performance between the edges of steel shield 1 and steel shield 2 and the crash barrier, preventing water, debris, and other contaminants from entering the expansion joint.

[0038] As a preferred technical solution of this utility model, the sealing ring 320 is made of EPDM rubber.

[0039] All of the above components can be prefabricated and then assembled and installed at the expansion joints of the crash barrier, which is convenient and improves installation efficiency.

[0040] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] 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 prefabricated tool-type steel shield at the expansion joint of a bridge crash barrier, comprising steel shield one (1) and steel shield two (2), characterized in that: The steel shielding plate one (1) and the steel shielding plate two (2) are both provided with slots (5), and the upper and lower ends of the outer sides of the steel shielding plate one (1) and the steel shielding plate two (2) are both provided with mounting slots (310). A T-shaped connecting rod (510) is inserted into the slot (5). An elastic circular part (520) is provided on the outer surface of the end of the T-shaped connecting rod (510). A threaded wire (530) is provided inside the elastic circular part (520). A threaded groove (540) is opened on the outer surface of the T-shaped connecting rod (510). The T-shaped connecting rod (510) and the elastic circular part (520) are connected by a threaded connection through the engagement of the threaded wire (530) and the threaded groove (540).

2. The prefabricated tool-type steel shield at the expansion joint of the bridge crash barrier according to claim 1, characterized in that: An outer cover plate (3) is inserted into the inside of the mounting groove (310). A sealing ring (320) is fitted at both ends of the outer cover plate (3). The outer surface of the sealing ring (320) is tightly fitted to the inside of the mounting groove (310). A receiving groove is opened on the inner side of the outer cover plate (3), and the groove opening (5) is set inside the receiving groove.

3. The prefabricated tool-type steel shield at the expansion joint of the bridge crash barrier according to claim 1, characterized in that: The end of the first steel shield (1) is provided with a slot (110), and the end of the second steel shield (2) is fixedly connected with a plug (210), and the plug (210) is inserted into the slot (110).

4. The prefabricated tool-type steel shield at the expansion joint of the bridge crash barrier according to claim 3, characterized in that: A bolt (120) is threadedly connected to the middle of the slot (110), and a connection port (220) is opened at the middle of the insert (210). The bolt (120) is inserted into the connection port (220).

5. The prefabricated tool-type steel shield at the expansion joint of the bridge crash barrier according to claim 1, characterized in that: The inner edges of the steel shield one (1) and the steel shield two (2) are bonded with sealing strips (4), which are made of EPDM rubber.

6. The prefabricated tool-type steel shield at the expansion joint of the bridge crash barrier according to claim 2, characterized in that: The sealing ring (320) is made of EPDM rubber.

Images