Formwork trolley suitable for integrated concrete pouring and curing construction

Abstract

This utility model discloses a formwork trolley suitable for integrated construction of concrete pouring and curing, including a trolley body, a formwork system, and a curing system. The curing system includes a cantilevered spray system and a windproof curtain. By adding a cantilevered spray curing system to the trolley body, the configuration of the curing trolley is reduced. A windproof curtain is arranged on the end side of the formwork trolley according to the tunnel cross section to prevent strong winds from adversely affecting the curing of the poured concrete. Temperature and humidity measuring elements are arranged on the windproof curtain to monitor the temperature and humidity of the concrete curing environment. This realizes integrated construction operation of tunnel lining concrete pouring and curing with a single formwork trolley. While ensuring the quality of concrete pouring, it reduces the number of trolleys required in the construction of tunnel lining structures, saves construction costs, and improves construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tunnel engineering technology. More specifically, this utility model relates to a formwork trolley suitable for integrated construction of concrete pouring and curing. Background Technology

[0002] Formwork trolleys, as a common type of engineering machinery, are widely used in tunnel construction due to their advantages such as flexible movement and good overall integrity. In tunnel engineering, formwork trolleys are mainly used for concrete pouring of sidewalls and arch lining structures. The construction process involves first positioning the trolley to the work surface where the rebar is tied using its built-in walking system. Then, the formwork is closed by adjusting the threaded rods between the trolley frame and the formwork. The threaded rods and support rods of the frame are then fixed. After the concrete is poured, the support rods are adjusted to release the formwork. After concrete pouring, curing is required. For tunnels with low bottom heights, manual spraying can be used for curing. However, for higher sections such as the tunnel arch, a separate curing trolley is often needed. Deploying a separate curing trolley not only increases construction costs but also affects construction efficiency due to the assembly of the rebar trolley and the switching between the formwork trolley and the rebar trolley. Therefore, based on the problems and difficulties encountered in the current tunnel engineering process of using trolleys for concrete pouring and curing, there is an urgent need for a formwork trolley that can achieve integrated concrete pouring and curing operations. Summary of the Invention

[0003] The purpose of this invention is to provide a formwork trolley suitable for integrated concrete pouring and curing construction, in order to solve the technical problem that existing technologies require additional trolleys for curing higher parts of tunnels, which affects construction efficiency.

[0004] To achieve these objectives and other advantages according to this utility model, a formwork trolley suitable for integrated concrete pouring and curing construction is provided, comprising:

[0005] The trolley body includes a trolley frame and a traveling system located at the bottom of the trolley frame. The traveling system is used to drive the trolley frame to move longitudinally along the tunnel.

[0006] The template system includes a top template and side templates, which are used for concrete pouring of the tunnel arch and side wall lining structure. The top template and side templates are respectively connected to the trolley frame with adjusting cylinders and support screws to adjust the position of the corresponding top template or side template.

[0007] The curing system includes a cantilevered sprinkler system and a windproof curtain that are sequentially connected and installed on the side of the cast-in-place concrete of the trolley frame. The cantilevered sprinkler system is used to spray and cure the cast-in-place concrete, and the windproof curtain is arranged along the cross-sectional direction of the tunnel to block the wind in the cross-sectional direction of the tunnel.

[0008] Preferably, the cantilevered sprinkler system includes a cantilever support, a sprinkler pipe assembly, a water injection pipe, and a water pump. The water pump is connected to the water injection pipe. The cantilever support is fixed to the rear end of the trolley frame. The sprinkler pipe assembly is installed on the top of the cantilever support, with one end connected to the water injection pipe and the other end provided with a sprinkler hole. The sprinkler working surface of all the sprinkler holes covers the circumferential area of ​​the poured concrete.

[0009] Preferably, the windproof curtain is designed to correspond to the shape of the tunnel cross section, and hanging holes are respectively opened on the windproof curtain at the positions corresponding to the positions of the sprinkler pipe assembly and the cantilever support. The sprinkler pipe assembly and the cantilever support pass through the hanging holes at the corresponding positions, and the upper end of the windproof curtain is fixedly connected to the top of the tail end of the trolley frame.

[0010] Preferably, a humidity and temperature sensing element is fixed on the top side of the windproof curtain facing away from the trolley frame, and a display terminal is also provided on the trolley frame. The humidity and temperature sensing element is electrically connected to the display terminal. The humidity and temperature sensing element is used to monitor the humidity and temperature of the concrete curing environment and transmit the data to the display terminal for display.

[0011] Preferably, the bottom of the windproof curtain is coaxially arranged with two flexible tube sleeves at intervals along the horizontal radial direction of the tunnel. A pressure rod is inserted into each flexible tube sleeve. The length of the pressure rod is less than the distance between the two flexible tube sleeves and less than half the width of the windproof curtain at the corresponding height. The adjacent ends of the two pressure rods are interlocked to form a whole rod, which provides counterweight to the windproof curtain for wind protection.

[0012] This utility model has at least the following beneficial effects: The formwork trolley of this utility model, applicable to the integrated construction of concrete pouring and curing, includes a trolley body, a formwork system, and a curing system. The curing system includes a cantilevered spray system and a windproof curtain. By adding a cantilevered spray curing system to the trolley body, the configuration of the curing trolley is reduced. A windproof curtain is arranged on the end side of the formwork trolley according to the tunnel cross section to prevent strong winds from adversely affecting the curing of the poured concrete. Temperature and humidity measuring elements are arranged on the windproof curtain to monitor the temperature and humidity of the concrete curing environment. This realizes the integrated construction operation of tunnel lining concrete pouring and curing with a single formwork trolley. While ensuring the quality of concrete pouring, it reduces the number of trolleys required in the construction of the tunnel lining structure, saves construction costs, and improves construction efficiency.

[0013] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the template trolley of this utility model;

[0015] Figure 2 This is a side view of the template trolley of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the maintenance system of this utility model;

[0017] Figure 4 This is a schematic diagram of the flexible sleeve and pressure bar configuration according to one embodiment of the present invention.

[0018] Explanation of the reference numerals in the accompanying drawings: 1. Trolley frame; 2. Walking system; 3. Support screw; 4. Adjusting cylinder; 5. Template system; 6. Cantilevered sprinkler system; 7. Windproof curtain; 8. Poured concrete; 9. Humidity and temperature sensor; 10. Hanging hole; 11. Flexible sleeve; 12. Pressure bar. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0020] In the description of this utility model, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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.

[0021] like Figure 1-4 As shown, the formwork trolley of this utility model, suitable for integrated construction of concrete pouring and curing, includes:

[0022] The trolley body includes a trolley frame 1 and a traveling system 2 located at the bottom of the trolley frame 1. The traveling system 2 is used to drive the trolley frame 1 to move longitudinally along the tunnel.

[0023] The template system 5 includes a top template and side templates, which are used for concrete pouring of the tunnel arch and side wall lining structure. The top template and side templates are respectively connected to the trolley frame 1 by adjusting cylinders 4 and supporting screws 3. The position of the corresponding top template or side template is adjusted by adjusting cylinders 4 and supporting screws 3.

[0024] The curing system includes a cantilevered spray system 6 and a windproof curtain 7 connected sequentially to the rear of the side of the poured concrete 8 on the trolley frame 1. The cantilevered spray system 6 is used to spray and cure the poured concrete, and the windproof curtain 7 is arranged along the tunnel cross-section to block the wind in the tunnel cross-section direction.

[0025] The integrated formwork trolley mainly consists of three parts: the trolley body, the formwork system 5, and the curing system. For ease of explanation, let's refer to... Figure 1 front end Figure 2 The right side indicates the direction of tunnel travel:

[0026] (1) Main body of the trolley

[0027] It mainly includes the trolley frame 1 and the traveling system 2. The trolley frame 1 serves as the main skeleton of the formwork trolley, providing support and stability during construction. The traveling system 2 is installed at the bottom of the formwork trolley, enabling autonomous movement along the longitudinal direction of the tunnel. The traveling system 2 is generally configured as a drive system with rails, wheels, and a motor, allowing the trolley frame 1 to move along the rails.

[0028] The system consists of a top formwork, side formwork, supporting screw rods 3, adjusting cylinders 4, a windproof curtain 7, and a cantilevered spray curing system. The top and side formwork are used for concrete pouring, while the supporting screw rods 3 and adjusting cylinders 4 are used for adjusting the formwork. The supporting screw rods primarily provide support, and the adjusting cylinders are mainly used for opening and closing the formwork. The cantilevered spray system 6 uses a cantilevered support structure to arrange the formwork trolley on the poured side for curing the already poured concrete.

[0029] (2) Template System 5

[0030] The side and top formwork of the formwork system 5 are mainly used for concrete pouring of the tunnel sidewalls and the top arch lining structure. The formwork adopts a fixed steel mold and is connected to the trolley frame 1 by the support screw rod 3. The top and side formwork are also equipped with pressure and displacement dual control adjustment cylinders 4 between the top and side formwork and the trolley frame 1 for opening and closing the corresponding side and top formwork.

[0031] (3) Maintenance system

[0032] The curing system of the formwork trolley mainly includes a windproof curtain 7 and a cantilevered sprinkler system 6. The windproof curtain 7 is arranged on the side of the poured concrete 8 of the trolley frame 1, i.e., the rear side. The windproof curtain 7 is mainly to prevent strong winds from causing moisture loss to the poured concrete 8. The cantilevered sprinkler system 6 is mainly composed of hollow pipes forming a support and cantilevered on the side of the formwork trolley away from the poured concrete 8. The poured concrete is sprayed and cured through pipes and sprinkler holes.

[0033] Given the current situation where concrete pouring and curing in tunnel lining construction require separate configurations of formwork trolleys and curing trolleys, this utility model, compared to traditional curing trolleys, adds a cantilevered spray curing system to the traditional formwork trolley for curing spraying. This enables a single formwork trolley to perform integrated concrete pouring and curing operations, reducing the number of curing trolleys required in tunnel construction, saving construction costs, ensuring concrete quality, saving time between concrete pouring and curing processes, and improving construction efficiency.

[0034] In another technical solution, such as Figure 1-3 As shown, the cantilevered sprinkler system 6 includes a cantilever support, a sprinkler pipe assembly, a water injection pipe, and a water pump. The water pump is connected to the water injection pipe. The cantilever support is fixed to the rear end of the trolley frame 1. The sprinkler pipe assembly is installed on the top of the cantilever support, with one end connected to the water injection pipe and the other end equipped with a sprinkler hole. The sprinkler working surface of all the sprinkler holes covers the circumferential area of ​​the poured concrete 8.

[0035] The cantilever support is made of hollow pipes. The spray pipe assembly consists of multiple spray pipes arranged at intervals corresponding to the shape of the tunnel cross section. The spray pipes are set parallel to the longitudinal direction of the tunnel. One end of the cantilever support is connected to the trolley frame 1, and the other end is supported upward and connected to the bottom of the spray pipe. One hollow pipe can be connected to one spray pipe. Multiple spray holes are opened at intervals on each spray pipe. The orientation of the spray holes is adjusted according to the location so that the spray area completely covers the surface area of ​​each poured concrete 8. A water injection system is set on the trolley frame 1. The water pump pumps the curing liquid and inputs it into the spray pipe through the water injection pipeline for spray curing.

[0036] In another technical solution, such as Figure 1-4As shown, the windproof curtain 7 is designed to correspond to the tunnel cross-section shape. Hanging holes 10 are provided on the windproof curtain 7 corresponding to the positions of the sprinkler pipe assembly and the cantilever support. The sprinkler pipe assembly and the cantilever support pass through the corresponding hanging holes 10. The upper end of the windproof curtain 7 is fixedly connected to the top of the rear end of the trolley frame 1. Generally, the bottom of the windproof curtain 7 is set higher than the tunnel floor. Appropriately sized hanging holes 10 are provided corresponding to the positions of the cantilever support pipes and sprinkler pipes, through which the windproof curtain 7 passes. The top of the windproof curtain 7 is then fixed to the trolley frame 1. The vertical length of the windproof curtain 7 can be set according to humidity and temperature control requirements.

[0037] In another technical solution, such as Figure 3 As shown, a humidity and temperature sensing element 9 is also fixed on the top side of the windproof curtain 7 facing away from the trolley frame 1. A display terminal is also provided on the trolley frame 1. The humidity and temperature sensing element 9 is electrically connected to the display terminal. The humidity and temperature sensing element 9 is used to monitor the humidity and temperature of the concrete curing environment and transmit them to the display terminal for display.

[0038] Temperature and humidity sensors and other humidity sensing elements 9 are already very common for the integrated measurement of ambient temperature and humidity, so they will not be described in detail here. The main purpose is to place the humidity sensing elements 9 on the side of the windproof curtain 7 facing the concrete to be cured, and arrange multiple elements according to the interval of the curing space for synchronous monitoring.

[0039] In another technical solution, such as Figure 4 As shown, the bottom of the windproof curtain 7 is coaxially arranged with two flexible tube sleeves 11 at intervals along the horizontal radial direction of the tunnel. A pressure rod 12 is inserted into each flexible tube sleeve 11. The length of the pressure rod 12 is less than the distance between the two flexible tube sleeves 11 and less than half the width of the windproof curtain 7 at the corresponding height. The adjacent ends of the two pressure rods 12 are connected to form a whole rod to provide counterweight for the windproof curtain 7.

[0040] The flexible sleeve 11 is set at the bottom of the windproof curtain 7. It can be made of the same material as the windproof curtain 7. It can be folded and rolled up to facilitate the insertion of the pressure rod 12. The pressure rod 12 has a certain weight to facilitate insertion and connection to form a whole rod, which helps to maintain the flat shape of the bottom of the windproof curtain 7. The spacing and length of the flexible sleeve 11 are set according to the length required for the corresponding height of the windproof curtain 7. It is only necessary to facilitate the insertion and withdrawal of the pressure rod 12, and after forming a whole rod, the outer end of the flexible sleeve 11 does not exceed the corresponding end of the whole rod.

[0041] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the drawings shown and described herein.

Claims

1. A formwork trolley suitable for integrated concrete pouring and curing construction, characterized in that, include: The trolley body includes a trolley frame and a traveling system located at the bottom of the trolley frame. The traveling system is used to drive the trolley frame to move longitudinally along the tunnel. The template system includes a top template and side templates, which are used for concrete pouring of the tunnel arch and side wall lining structure. The top template and side templates are respectively connected to the trolley frame with adjusting cylinders and support screws to adjust the position of the corresponding top template or side template. The curing system includes a cantilevered sprinkler system and a windproof curtain that are sequentially connected and installed on the side of the cast-in-place concrete of the trolley frame. The cantilevered sprinkler system is used to spray and cure the cast-in-place concrete, and the windproof curtain is arranged along the cross-sectional direction of the tunnel to block the wind in the cross-sectional direction of the tunnel.

2. The formwork trolley for integrated concrete pouring and curing construction as described in claim 1, characterized in that, The cantilevered sprinkler system includes a cantilever support, a sprinkler pipe assembly, a water injection pipe, and a water pump. The water pump is connected to the water injection pipe. The cantilever support is fixed to the rear end of the trolley frame. The sprinkler pipe assembly is installed on the top of the cantilever support, with one end connected to the water injection pipe and the other end equipped with a sprinkler hole. The sprinkler working surface of all the sprinkler holes covers the circumferential area of ​​the poured concrete.

3. The formwork trolley for integrated concrete pouring and curing construction as described in claim 2, characterized in that, The windproof curtain is designed to correspond to the shape of the tunnel cross section. Hanging holes are provided on the windproof curtain at the positions corresponding to the spray pipe assembly and the cantilever support. The spray pipe assembly and the cantilever support pass through the hanging holes at the corresponding positions. The upper end of the windproof curtain is fixedly connected to the top of the tail end of the trolley frame.

4. The formwork trolley for integrated concrete pouring and curing construction as described in claim 3, characterized in that, A humidity and temperature sensing element is fixed on the top side of the windproof curtain facing away from the trolley frame. A display terminal is also installed on the trolley frame. The humidity and temperature sensing element is electrically connected to the display terminal. The humidity and temperature sensing element is used to monitor the humidity and temperature of the concrete curing environment and transmit the data to the display terminal for display.

5. The formwork trolley for integrated concrete pouring and curing construction as described in claim 3, characterized in that, The bottom of the windproof curtain is coaxially arranged with two flexible tube sleeves at intervals along the horizontal radial direction of the tunnel. A pressure rod is inserted into each flexible tube sleeve. The length of the pressure rod is less than the distance between the two flexible tube sleeves and less than half the width of the windproof curtain at the corresponding height. The adjacent ends of the two pressure rods are interlocked to form a whole rod, which provides counterweight to the windproof curtain for wind protection.

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