Box girder formwork for municipal road and bridge construction

Abstract

The utility model discloses a box girder formwork for municipal road and bridge construction, concretely relates to box girder formwork technical field, including bearing block and support column, the upper end surface of bearing block is provided with support column, and the one end away from bearing block of support column is provided with first telescopic mechanism, and the telescopic end of first telescopic mechanism is provided with second telescopic mechanism, and the telescopic end of second telescopic mechanism is close to the bottom end surface of support formwork, and the contact surface between several groups of support formwork is provided with sealing mechanism. Wherein setting up several groups of bearing block and support column, through bearing block and support column carry out the support of box girder formwork to utilize first telescopic mechanism and second telescopic mechanism to carry out position adjustment to support formwork, and the telescopic end of second telescopic mechanism is installed at the four corners of support formwork and center place in particular, so as to realize the support, and then eliminate artificial calibration error, and wherein the contact surface of support formwork is provided with sealing mechanism, and then when meeting the concrete pressure, expand the gap filling, reduce the slurry leakage rate.

Description

Technical Field

[0001] This utility model relates to the field of box girder formwork technology, and more specifically, to a box girder formwork for municipal road and bridge construction. Background Technology

[0002] Box girder formwork for municipal road and bridge construction is a special mold system used for cast-in-place or precast box girder structures. Its core function is to provide precise support and forming space for concrete pouring, ensuring that the geometric dimensions, strength and appearance quality of the box girder meet the design requirements.

[0003] For example, application number CN202123182144.8 discloses a box girder formwork for municipal road and bridge construction, which solves the problem that "in the prior art, it is not easy for workers to use box girder formwork to manufacture box girders of different sizes"; in the prior art, the joints of the assembled inner mold are prone to misalignment, which leads to height difference. In order to avoid the formation of height difference, it is necessary to grind and repair it later to ensure the appearance quality of municipal road and bridge construction and avoid affecting the comfort of high-speed driving.

[0004] Therefore, a box girder formwork for municipal road and bridge construction is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a box girder formwork for municipal road and bridge construction to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a box girder formwork for municipal road and bridge construction, comprising a bearing block, a support column, a first telescopic mechanism, a second telescopic mechanism, and a support template. The upper end of the bearing block is provided with a support column, and the end of the support column away from the bearing block is provided with a first telescopic mechanism. The telescopic end of the first telescopic mechanism is provided with a second telescopic mechanism, and the telescopic end of the second telescopic mechanism is in close contact with the bottom end of the support template. The support template is provided in several groups, and the several groups of support templates are connected by tenon and mortise joints. The contact surfaces between the several groups of support templates are provided with a sealing mechanism.

[0007] The second telescopic mechanism includes a fixed frame and miniature hydraulic jacks. The upper surface of the fixed frame is provided with miniature hydraulic jacks, and there are five sets of miniature hydraulic jacks. The telescopic ends of the miniature hydraulic jacks are hinged to support plates. The outer surface of the support plate is inlaid with a detection module, which consists of an angle sensor, a first height sensor, and a pressure sensor.

[0008] Preferably, the detection module is provided with four sets of angle sensors, first height sensors, and pressure sensors.

[0009] Preferably, the angle sensor in the detection module is specifically installed on the bottom end face of the support plate, the first height sensor in the detection module is specifically installed on the side end face of the support plate, and the pressure sensor is specifically installed at the four corners of the upper end face of the support plate.

[0010] Preferably, the fixing frame consists of an aluminum alloy plate and a carbon fiber support frame. The aluminum alloy plate is wrapped around the outer diameter surface of the carbon fiber support frame, and the carbon fiber support frames are reinforced with carbon fiber frames. A first panel and a second panel are respectively provided at the intersection and end of the carbon fiber support frames.

[0011] Preferably, the first telescopic mechanism includes a hydraulic telescopic rod and a fixing block. The hydraulic telescopic rod is installed at one end of the support column, and the telescopic end of the hydraulic telescopic rod is provided with a fixing block, and a second height sensor is provided on the inner side of the fixing block.

[0012] Preferably, the sealing mechanism includes an L-shaped tenon and mortise block and an L-shaped tenon and mortise groove, which are respectively installed at the edge of the support template, and a memory alloy sealing strip is provided at the edge of the L-shaped tenon and mortise block.

[0013] Preferably, the bearing blocks and support columns are provided in several groups, and the bearing blocks are cast and arranged, with the several groups of bearing blocks on the same horizontal line. The micro hydraulic jack is hinged to the support plate, and the micro hydraulic jack and the support plate form a rotating structure that rotates around the hinge center.

[0014] Preferably, the supporting templates are connected by L-shaped tenon and mortise blocks and L-shaped tenon and mortise grooves to form a tenon and mortise structure, and the side of the supporting template away from the second telescopic mechanism is provided with a graphene composite coating.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] Compared with existing technologies, this box girder formwork for municipal road and bridge construction is in use. It is equipped with several sets of bearing blocks and support columns to support the box girder formwork. The position of the support formwork is adjusted by a first telescopic mechanism and a second telescopic mechanism. The telescopic ends of the second telescopic mechanism are specifically installed at the four corners and the center of the support formwork to achieve support and eliminate manual calibration errors. The contact surface of the support formwork is equipped with a sealing mechanism, which expands and fills the gaps when exposed to concrete pressure, reducing the leakage rate.

[0017] Compared with existing technologies, this box girder formwork for municipal road and bridge construction uses a method in which load-bearing blocks and support columns are first installed. The load-bearing blocks are cast and set in several groups at the same horizontal line. Then, support columns are installed on the upper surface of the load-bearing blocks to support the first telescopic mechanism and the second telescopic mechanism. The hydraulic telescopic rod in the first telescopic mechanism is driven to extend and retract through the fixed block to adjust the height of the second telescopic mechanism. The fixed frame in the second telescopic mechanism supports the miniature hydraulic jack. The fixed frame is composed of aluminum alloy plate, carbon fiber support frame, carbon fiber reinforcement frame, first panel and second panel, which enhances the support effect while reducing the weight of the fixed frame to facilitate the installation and assembly of the device of this application.

[0018] Compared with existing technologies, this box girder formwork for municipal road and bridge construction uses a second telescopic mechanism with micro hydraulic jacks on the upper surface of the fixed frame supporting the formwork. Five sets of micro hydraulic jacks are installed at the four corners and center of the bottom surface of the formwork, facilitating support. An angle sensor, a first height sensor, and a pressure sensor are used to monitor the status of the support plate and formwork in real time, eliminating manual calibration errors and solving the problem that "in existing technologies, misalignment easily forms at the joints of assembled inner molds, resulting in height differences. To avoid these differences, subsequent grinding and repair are required, ensuring the appearance quality of municipal road and bridge construction and preventing impact on high-speed driving comfort." Furthermore, the contact surfaces of the formwork are equipped with a sealing mechanism. The formwork is connected by L-shaped tenon blocks and L-shaped tenon grooves for installation. A memory alloy sealing strip is installed between the L-shaped tenon blocks and L-shaped tenon grooves to fill gaps and reduce grout leakage when exposed to concrete pressure expansion. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the front section of the second telescopic mechanism of this utility model.

[0022] Figure 4 This is a top view of the fixed frame structure of this utility model.

[0023] Figure 5 This is a top-section schematic diagram of the fixed frame structure of this utility model.

[0024] Figure 6 This is a top view of the support template portion of this utility model.

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of the support template of this utility model.

[0026] The attached figures are labeled as follows: 1. Bearing block; 2. Support column; 3. First telescopic mechanism; 31. Hydraulic telescopic rod; 32. Fixing block; 4. Second telescopic mechanism; 41. Fixing frame; 411. Aluminum alloy plate; 412. Carbon fiber support frame; 413. Carbon fiber reinforcement frame; 414. First panel; 415. Second panel; 42. Miniature hydraulic jack; 43. Support plate; 44. Detection module; 45. First height sensor; 46. Pressure sensor; 5. Support template; 6. Sealing mechanism; 61. L-shaped tenon block; 62. L-shaped tenon groove; 63. Memory alloy sealing strip. 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

[0028] As attached Figures 1 to 7The box girder formwork for municipal road and bridge construction shown includes a load-bearing block 1, a support column 2, a first telescopic mechanism 3, a second telescopic mechanism 4, and a support template 5. The support column 2 is located on the upper surface of the load-bearing block 1, and the first telescopic mechanism 3 is located at the end of the support column 2 away from the load-bearing block 1. The second telescopic mechanism 4 is located at the telescopic end of the first telescopic mechanism 3, and the telescopic end of the second telescopic mechanism 4 is in close contact with the bottom surface of the support template 5. Several sets of support templates 5 are provided, and the sets of support templates 5 are connected by mortise and tenon joints. A sealing mechanism 6 is provided at the contact surface between the sets of support templates 5. The second telescopic mechanism 4 includes a fixed frame 41 and a miniature hydraulic jack 42. The upper end of the fixed frame 41... The support plate 43 is hinged to the telescopic end of the micro hydraulic jack 42, which consists of five sets. A detection module 44 is embedded in the outer surface of the support plate 43, comprising an angle sensor, a first height sensor 45, and a pressure sensor 46. The micro hydraulic jacks 42 on the upper surface of the fixed frame 41 in the second telescopic mechanism 4 support the support template 5. The micro hydraulic jacks 42 are installed at the four corners and the center of the bottom surface of the support template 5 to support it. The angle sensor, first height sensor 45, and pressure sensor 46 provide real-time monitoring of the support plate 43 and the support template. The state of plate 5 is designed to eliminate manual calibration errors in the device of this application, solving the problem that "in the prior art, misalignment easily forms at the joints of assembled inner molds, resulting in height differences. To avoid height differences, subsequent grinding and repair are required to ensure the appearance quality of municipal road and bridge structures and avoid affecting the comfort of high-speed driving." The detection module 44 is equipped with four sets of angle sensors, first height sensors 45, and pressure sensors 46. Specifically, the angle sensors in the detection module 44 are installed on the bottom surface of the support plate 43, the first height sensors 45 are installed on the side surface of the support plate 43, and the pressure sensors 46 are installed at the four corners of the upper surface of the support plate 43. The fixed frame 41 consists of an aluminum alloy plate 411 and a carbon fiber support frame 412. The aluminum alloy plate 411 is wrapped around the outer diameter surface of the carbon fiber support frame 412, and the carbon fiber support frames 412 are connected by a carbon fiber reinforcing frame 413. A first panel 414 and a second panel 415 are respectively provided at the intersection and end of the carbon fiber support frames 412. The fixed frame 41 in the second telescopic mechanism 4 supports the miniature hydraulic jack 42. The fixed frame 41 is composed of an aluminum alloy plate 411, a carbon fiber support frame 412, a carbon fiber reinforcing frame 413, a first panel 414, and a second panel 415. This enhances the support effect while reducing the weight of the fixed frame 41, so as to facilitate the installation and assembly of the device of this application.

[0029] The first telescopic mechanism 3 includes a hydraulic telescopic rod 31 and a fixing block 32. The hydraulic telescopic rod 31 is installed at one end of the support column 2, and the telescopic end of the hydraulic telescopic rod 31 is provided with the fixing block 32. A second height sensor is provided on the inner side of the fixing block 32. The bearing block 1 is cast and installed, and several groups are at the same horizontal line. The support column 2 is installed on the upper end face of the bearing block 1, thereby supporting the first telescopic mechanism 3 and the second telescopic mechanism 4. The hydraulic telescopic rod 31 in the first telescopic mechanism 3 is driven to telescopicate through the fixing block 32 in order to adjust the height of the second telescopic mechanism 4. The sealing mechanism 6 includes an L-shaped tenon and mortise block 61 and an L-shaped tenon and mortise groove 62. The L-shaped tenon and mortise block 61 and the L-shaped tenon and mortise groove 62 are respectively installed at the edge of the support template 5, and a memory alloy sealing strip 63 is provided at the edge of the L-shaped tenon and mortise block 61. The support templates 5 are connected by tenon and mortise through the L-shaped tenon and mortise block 61 and the L-shaped tenon and mortise groove 62. When the support template 5 is installed, the memory alloy sealing strip 63 is provided between the L-shaped tenon and mortise block 61 and the L-shaped tenon and mortise groove 62. When the concrete expands under pressure, the memory alloy sealing strip 63 fills the gap and reduces the leakage rate.

[0030] Several sets of bearing blocks 1 and support columns 2 are provided, and the bearing blocks 1 are cast and arranged, with several sets of bearing blocks 1 on the same horizontal line. The micro hydraulic jack 42 is hinged to the support plate 43, and the micro hydraulic jack 42 and the support plate 43 form a rotating structure that rotates around the hinge center. The support templates 5 are connected by L-shaped tenon and mortise blocks 61 and L-shaped tenon and mortise grooves 62 to form a tenon and mortise structure. The side of the support template 5 away from the second telescopic mechanism 4 is provided with a graphene composite coating. In this embodiment, the hydraulic telescopic rod 31, aluminum alloy, carbon fiber, micro hydraulic jack 42, height sensor, pressure sensor 46, and memory alloy sealing strip 63 are all commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here we only use them without making any structural or functional improvements, and we will not elaborate further.

[0031] The working process of this utility model is as follows: First, the bearing block 1 and the support column 2 are installed and arranged. The bearing block 1 is cast and set. Then, the support column 2 is installed on the upper end face of the bearing block 1 to support the first telescopic mechanism 3 and the second telescopic mechanism 4. The hydraulic telescopic rod 31 in the first telescopic mechanism 3 is driven to telescopically extend and retract through the fixed block 32 to adjust the height of the second telescopic mechanism 4. The fixed frame 41 in the second telescopic mechanism 4 supports the miniature hydraulic jack 42. The fixed frame 41 is composed of an aluminum alloy plate 411, a carbon fiber support frame 412, a carbon fiber reinforcement frame 413, a first panel 414 and a second panel 415, which enhances the support effect while reducing the weight of the fixed frame 41.

[0032] The miniature hydraulic jacks 42 on the upper end of the fixed frame 41 in the second telescopic mechanism 4 support the support template 5. Five sets of miniature hydraulic jacks 42 are provided and installed at the four corners and the center of the bottom end of the support template 5 to support the support template 5. An angle sensor, a first height sensor 45 and a pressure sensor 46 are used to detect the status of the support plate 43 and the support template 5 in real time. The contact surface of the support template 5 is provided with a sealing mechanism 6. The support templates 5 are connected by mortise and tenon joints 61 and L-shaped mortise and tenon grooves 62. A memory alloy sealing strip 63 is provided between the L-shaped mortise and tenon joints 61 and L-shaped mortise and tenon grooves 62. When encountering concrete pressure expansion, it fills the gap and reduces the leakage rate.

Claims

1. A box girder form for municipal road and bridge construction, comprising a bearing block (1), a support column (2), a first telescopic mechanism (3), a second telescopic mechanism (4) and a support form (5), characterized in that: The upper end face of the bearing block (1) is provided with a support column (2), and the end of the support column (2) away from the bearing block (1) is provided with a first telescopic mechanism (3). The telescopic end of the first telescopic mechanism (3) is provided with a second telescopic mechanism (4), and the telescopic end of the second telescopic mechanism (4) is closely attached to the bottom end face of the support template (5). The support template (5) is provided with several sets, and the several sets of support templates (5) are connected by tenon and mortise, and the contact surface between the several sets of support templates (5) is provided with a sealing mechanism (6). The second telescopic mechanism (4) includes a fixed frame (41) and a miniature hydraulic jack (42). The upper end of the fixed frame (41) is provided with a miniature hydraulic jack (42), and there are five sets of miniature hydraulic jacks (42). The telescopic end of the miniature hydraulic jack (42) is hinged to a support plate (43). The outer surface of the support plate (43) is inlaid with a detection module (44). The detection module (44) consists of an angle sensor, a first height sensor (45), and a pressure sensor (46).

2. The box girder formwork for municipal road and bridge construction according to claim 1, characterized in that: The detection module (44) is equipped with four sets of angle sensors, first height sensors (45) and pressure sensors (46).

3. The box girder formwork for municipal road and bridge construction according to claim 1, characterized in that: The angle sensor in the detection module (44) is specifically installed on the bottom surface of the support plate (43), the first height sensor (45) in the detection module (44) is specifically installed on the side surface of the support plate (43), and the pressure sensor (46) is specifically installed at the four corners of the upper surface of the support plate (43).

4. The box girder formwork for municipal road and bridge construction according to claim 1, characterized in that: The fixed frame (41) consists of an aluminum alloy plate (411) and a carbon fiber support frame (412). The aluminum alloy plate (411) is wrapped around the outer diameter surface of the carbon fiber support frame (412), and the carbon fiber support frames (412) are connected by carbon fiber reinforcement frames (413). The first panel (414) and the second panel (415) are respectively provided at the intersection and the end of the carbon fiber support frame (412).

5. The box girder form for municipal road and bridge construction according to claim 1, characterized in that: The first telescopic mechanism (3) includes a hydraulic telescopic rod (31) and a fixing block (32). The hydraulic telescopic rod (31) is installed at one end of the support column (2), and the telescopic end of the hydraulic telescopic rod (31) is provided with a fixing block (32), and a second height sensor is provided on the inner side of the fixing block (32).

6. The box girder formwork for municipal road and bridge construction according to claim 1, characterized in that: The sealing mechanism (6) includes an L-shaped tenon block (61) and an L-shaped tenon groove (62). The L-shaped tenon block (61) and the L-shaped tenon groove (62) are respectively installed at the edge of the support template (5), and a memory alloy sealing strip (63) is provided at the edge of the L-shaped tenon block (61).

7. The box girder formwork for municipal road and bridge construction according to claim 4, characterized in that: The bearing block (1) and the support column (2) are provided in several groups, and the bearing block (1) is cast and arranged, and the several groups of bearing blocks (1) are on the same horizontal line. The micro hydraulic jack (42) is hinged to the support plate (43), and the micro hydraulic jack (42) and the support plate (43) form a rotating structure that rotates around the hinge center.

8. The box girder formwork for municipal road and bridge construction according to claim 6, characterized in that: The support templates (5) are connected through L-shaped tenon and mortise blocks (61) and L-shaped tenon and mortise grooves (62) to form a tenon and mortise structure, and the side of the support templates (5) away from the second telescopic mechanism (4) is provided with a graphene composite coating.

Images