Novel movable formwork for bridge concrete guardrail and construction method

Abstract

The invention discloses a novel movable formwork for a bridge concrete guardrail and a construction method. The movable formwork comprises a formwork body, a movable component and a positioning component. The template body is arranged at the upper end of a bridge floor; the moving part is arranged on the side face of the formwork body and can stretch out of the bottom end of the formwork body. And the positioning parts are respectively arranged on the side surface of the template body and the upper end of the moving part. In the actual operation process, the moving part is installed on the side face of the pre-assembled formwork body, and the internal distance of the formwork body and the distance between the formwork body and the middle line of a road are monitored through the positioning part; therefore, the moving component is controlled by the positioning component to carry the template body to accurately move along the mark left by the surveying and setting-out, the accuracy and efficiency of bridge concrete guardrail construction are effectively improved, and the controllability and safety of the construction process are enhanced.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge concrete guardrail construction, and more specifically, relates to a new type of movable template for bridge concrete guardrail and a construction method. Background Art

[0002] Cast-in-place reinforced concrete bridge crash barrier is a structural component used to improve the safety of bridge traffic. It is usually designed to withstand the impact force from an out-of-control vehicle and minimize damage to the vehicle and passengers. Its traditional construction method mainly includes: measuring and setting out to determine the location of the guardrail, processing and tying of steel bars, installation and fixing of formwork, pouring of concrete, maintenance, and finally demolding and cleaning. However, this traditional construction method has some challenges in actual operation. Especially in the use of formwork, since the formwork is usually heavy, its transportation process may bring safety hazards.

[0003] To solve this problem, a Chinese patent with document number CN205296017U discloses an integral moving device for an anti-collision guardrail template, including a plurality of Z-shaped brackets formed by two cross bars and a longitudinal bar, the Z-shaped brackets are connected by connecting rods, a suspension that moves along the cross bar is hung on the cross bar at the top of each Z-shaped bracket, and a roller is connected to the cross bar at the bottom of each Z-shaped bracket.

[0004] Although the device of the above patent can solve the problem that each anti-collision guardrail template needs to be installed and transported separately, and the anti-collision guardrail template can be dragged as a whole to shorten the construction connection time, a large number of lifting and hoisting equipment are needed in the overall transportation of the template, which not only occupies the bridge deck construction space, but also poses a great safety hazard; secondly, the installation and positioning of the template is a process that requires high precision. It must be closely coordinated with the preliminary measurement and layout work to ensure the accuracy and linearity of the structure. However, when using lifting equipment to hoist the template, in order to ensure that the template can be accurately aligned with the predetermined marking position, construction personnel are often required to direct and adjust under the suspended template. This practice not only increases the safety risk of the operators, but may also lead to an extension of the construction period because extra time is required to adjust the template position. At the same time, it will also increase the cost and time pressure of the project. Summary of the invention

[0005] In response to the above defects or improvement needs of the prior art, the present invention provides a new type of movable formwork and construction method for bridge concrete guardrail, by installing the movable component to the side of the pre-assembled formwork body, and monitoring the internal spacing of the formwork body and the distance from the formwork body to the center line of the road through the positioning component, so that the movable component is controlled by the positioning component to carry the formwork body and move precisely along the measured layout leaving traces, which not only effectively improves the accuracy and efficiency of the bridge concrete guardrail construction, but also enhances the controllability and safety of the construction process.

[0006] In order to achieve the above-mentioned object, the present invention provides a new type of movable formwork for bridge concrete guardrail, comprising: a formwork body, a movable component and a positioning component, wherein:

[0007] The template body comprises: an outer template, an inner template, a connecting rod and a rubber strip; wherein the outer template and the inner template are both vertically arranged at the upper end of the bridge deck and have a plurality of corresponding first connecting holes on the side; the connecting rod passes through two of the first connecting holes and is fixedly connected to the outer template and the inner template respectively through fixing accessories adapted to the connecting rod; the rubber strip is arranged at the bottom ends of the outer template and the inner template;

[0008] The moving parts include: a mounting groove, a connecting beam, an electric lifting rod and a crawler; wherein the mounting grooves are respectively arranged on the opposite sides of the outer template and the inner template; the connecting beam is adapted to the mounting groove; one end of the electric lifting rod is connected to the connecting beam, and the other end is connected to the crawler through a driving motor;

[0009] The positioning component includes: a first rangefinder, a second rangefinder and a controller; wherein the first rangefinder is respectively arranged at the upper end of the outer template and the inner template facing each other, and is respectively arranged at the front and rear sides of the outer template and the inner template; the second rangefinder is arranged at the upper end of the electric lifting rod; the controller is respectively communicated with the electric lifting rod, the drive motor, the first rangefinder and the second rangefinder, so that the controller controls the moving component to carry the template body and accurately move to the specified position along the traces left by the measurement and layout.

[0010] Furthermore, the connecting rod includes a screw rod and a slide rail, and the matching fixing accessories include a fixing bolt, a positioning pin and a buckle.

[0011] Furthermore, the rubber strip is mainly made of synthetic rubber such as chloroprene rubber or EPDM rubber.

[0012] Furthermore, the sides of the outer formwork and the inner formwork opposite to each other are provided with a plurality of channel steel back ribs;

[0013] The width of the crawler track is not greater than 1.1 times the width of the back rib of the channel steel.

[0014] Furthermore, the installation groove and the connecting cross beam enable the electric lifting rod to maintain a vertical state with the bridge deck.

[0015] Furthermore, the electric lifting rod is a remote-controlled lifting rod, and includes an electric mechanical lifting rod and an electric hydraulic lifting rod;

[0016] The controller is a handheld mobile controller.

[0017] Furthermore, the driving motor is a remote-controlled driving motor, and the plurality of driving motors respectively control the running speed of the crawlers on the sides of the outer template and the inner template in a differential manner to change the direction of the template body;

[0018] The operation conditions of the multiple driving motors on the side of the outer template are the same, and the operation conditions of the multiple driving motors on the side of the inner template are the same.

[0019] Furthermore, there are at least three groups of electric lifting rods and crawlers on the sides of the outer template and the inner template.

[0020] Another aspect of the present invention provides a construction method of a new type of mobile formwork for a bridge concrete guardrail, which is implemented by using the mobile formwork as described above, and comprises the following steps:

[0021] S1: Prepare an outer template and an inner template that meet the design requirements, install a first distance meter on the opposite sides of the outer template and the inner template, and install a rubber strip at their bottom ends;

[0022] S2: pre-fixing the outer template and the inner template by connecting rods and fixing accessories, monitoring the distance between the outer template and the inner template by the first distance meter, adjusting the length of the connecting rod between them, and adjusting the distance between the outer template and the inner template to meet the guardrail design requirements;

[0023] S3: Install moving parts on the sides opposite to the outer template and the inner template, and ensure that the electric lifting rod normally drives the crawler to extend out of the bottom ends of the outer template and the inner template, and then install the second distance meter on the upper end of the electric lifting rod;

[0024] S4: The controller controls the moving part to transfer the template body to the measurement and layout area, and adjusts the position of the template body to the designated position by using the data of the distance between the template body and the road centerline measured by the second distance meter. Then, the controller controls the electric lifting rod to retract the crawler, thereby lowering the template body to the bridge deck.

[0025] S5: Continue to retract the crawler until the second connection hole and the installation space of the tension bolt are exposed, then install the tension bolt through the second connection hole, and install concrete baffles on both sides of the outer formwork and the inner formwork;

[0026] S6: pouring concrete into the cavity between the outer formwork, the inner formwork and the concrete baffle through a delivery pipe, and continuously vibrating the cavity with a vibrator to expel air during the pouring process, and then, after the concrete solidifies, hammering the outer formwork and the inner formwork to remove the concrete baffle and the tension bolts;

[0027] S7: Repeat steps S4 to S6 until the construction of the bridge concrete guardrail is completed, and recycle the movable template through the controller.

[0028] Furthermore, a detachable baffle is provided at the upper end of the bridge deck near the template body, the length of the baffle is not less than the length of the moving path of the template body, and the distance between the baffle and the moving path of the template body is the same, and at the same time, the monitoring data of the second distance meter is the distance information from the template body to the baffle;

[0029] The height of the baffle is higher than the installation height of the second rangefinder and is not higher than the height of the inner template.

[0030] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0031] 1. The mobile formwork of the present invention installs the moving component to the side of the pre-assembled formwork body, and monitors the internal spacing of the formwork body and the distance from the formwork body to the center line of the road through the positioning component, so that the moving component is controlled by the positioning component to carry the formwork body and move accurately along the measured layout leaving traces, which not only effectively improves the accuracy and efficiency of the bridge concrete guardrail construction, but also enhances the controllability and safety of the construction process.

[0032] 2. The movable formwork of the present invention adjusts the length of the connecting rod between the outer formwork and the inner formwork, and fixes the connecting rod to the outer formwork and the inner formwork respectively through fixing accessories, so as to conveniently connect the outer formwork and the inner formwork and adjust the thickness of the concrete guardrail, thereby simplifying the construction process; in addition, by arranging the rubber strip at the bottom ends of the outer formwork and the inner formwork, leakage of slurry can be effectively prevented, thereby ensuring the construction quality.

[0033] 3. The mobile formwork of the present invention can effectively realize the disassembly and assembly of the mobile parts and components by inserting the connecting crossbeam into the installation groove and fixing it by tightening bolts, thereby reducing the subsequent maintenance cost. Secondly, by operating the electric lifting rod, the crawler is extended out of the bottom end of the outer formwork and the inner formwork or recovered, so that the formwork body can be accurately moved along the measured layout leaving traces before pouring, ensuring the accuracy of construction, and the formwork body can be steadily placed on the upper end of the bridge deck during pre-pouring, thereby avoiding the safety risks and construction delays caused by hoisting and transportation.

[0034] 4. The mobile formwork of the present invention, during the actual operation process, measures the distance between the outer formwork and the inner formwork through the first rangefinder, and sets the data monitoring threshold of the second rangefinder through the controller, so that when the second rangefinder monitors the data of the formwork body during transportation, the controller can automatically adjust the drive motor to continuously correct the movement trajectory of the formwork body to ensure that the formwork body moves along the planned route; secondly, when the formwork body is transported to the casting area, the controller controls the extension and retraction of the electric lifting rod to allow the track to be smoothly retracted upward, thereby conveniently lowering the formwork body to the upper end of the bridge deck, thereby improving construction efficiency, reducing costs, and ensuring construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the installation structure of the rubber strip according to an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of the structure of a mobile template according to an embodiment of the present invention;

[0037] Figure 3 is a side view of a template in an embodiment of the present invention;

[0038] Figure 4 Schematic diagram of the installation structure of the second rangefinder according to an embodiment of the present invention;

[0039] Figure 5 It is a structural schematic diagram of a controller according to an embodiment of the present invention;

[0040] Figure 6 The present invention is a schematic diagram of the steps of the construction method of the movable template according to the embodiment of the present invention.

[0041] In all the drawings, the same figure marks represent the same technical features, specifically: 1-external template, 2-inner template, 3-connecting rod, 31-first connecting hole, 32-fixing accessories, 33-second connecting hole, 4-rubber strip, 5-installation groove, 6-connecting beam, 7-electric lifting rod, 71-driving motor, 8-track, 9-first rangefinder, 10-second rangefinder, 11-controller, display area 111, control area 112. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] like Figures 1 to 5 As shown, one embodiment of the present invention provides a new type of mobile formwork for bridge concrete guardrail, comprising: a formwork body, a moving part and a positioning part; the formwork body is arranged at the upper end of the bridge deck; the moving part is arranged at the side of the formwork body and can extend from the bottom end of the formwork body; the positioning part is respectively arranged at the side of the formwork body and the upper end of the moving part. In the actual operation process, by installing the moving part to the side of the pre-assembled formwork body, and monitoring the internal spacing of the formwork body and the distance from the formwork body to the center line of the road through the positioning part, the moving part is controlled by the positioning part to carry the formwork body and move accurately along the measurement and layout leaving traces, which not only effectively improves the accuracy and efficiency of the construction of bridge concrete guardrails, but also enhances the controllability and safety of the construction process.

[0044] Specifically, Figures 1 to 3 As shown, the formwork body is arranged at the upper end of the bridge deck to ensure the stable forming of the cast-in-place concrete guardrail. The formwork body includes: an outer formwork 1, an inner formwork 2, a connecting rod 3 and a rubber strip 4; wherein the outer formwork 1 and the inner formwork 2 are both arranged vertically at the upper end of the bridge deck and have corresponding first connecting holes 31 on the side; the connecting rod 3 passes through two first connecting holes 31 and is fixedly connected to the outer formwork 1 and the inner formwork 2 respectively through a fixing fitting 32 adapted to the connecting rod 3; the rubber strip 4 is arranged at the bottom end of the outer formwork 1 and the inner formwork 2. In the actual operation process, by adjusting the length of the connecting rod 3 between the outer formwork 1 and the inner formwork 2, and fixing the connecting rod 3 to the outer formwork 1 and the inner formwork 2 respectively through the fixing fitting 32, the outer formwork 1 and the inner formwork 2 are conveniently connected and the thickness of the concrete guardrail is adjusted, thereby simplifying the construction process; in addition, by arranging the rubber strip 4 at the bottom end of the outer formwork 1 and the inner formwork 2, leakage of slurry can be effectively prevented to ensure the construction quality.

[0045] Preferably, the connecting rod 3 includes a screw rod and a slide rail, and the matching fixing accessories 32 include a fixing bolt, a positioning pin and a buckle.

[0046] Preferably, the rubber strip 4 is mainly made of synthetic rubber such as chloroprene rubber or EPDM rubber, so as to reduce the use cost while ensuring sealing and durability.

[0047] Preferably, a plurality of second connection holes 33 are provided at corresponding positions of the outer formwork 1 and the inner formwork 2 for installing tension bolts to ensure that the formwork body structure is stable when pouring concrete.

[0048] Preferably, a plurality of channel steel back ribs are provided on the opposite sides of the outer formwork 1 and the inner formwork 2, so as to reduce the weight of the formwork as much as possible and improve the efficiency of formwork transportation while satisfying the strength and rigidity required by the construction.

[0049] Specifically, Figures 2 to 4 As shown, the moving parts are arranged on the side of the template body and can extend from the bottom end of the template body. The moving parts include: a mounting groove 5, a connecting beam 6, an electric lifting rod 7 and a crawler 8; wherein the mounting groove 5 is respectively arranged on the opposite sides of the outer template 1 and the inner template 2; the connecting beam 6 is adapted to the mounting groove 5; one end of the electric lifting rod 7 is connected to the connecting beam 6, and the other end is connected to the crawler 8 through a driving motor 71. In the actual operation process, by inserting the connecting beam 6 into the mounting groove 5 and fixing it by tightening bolts, the disassembly and assembly of the moving parts can be effectively realized, and the subsequent maintenance cost can be reduced. Secondly, by controlling the electric lifting rod 7, the crawler 8 is extended out of the bottom end of the outer template 1 and the inner template 2 or recovered, so as to realize the accurate movement of the template body along the measurement and setting-out line before pouring, ensure the accuracy of construction, and the template body is stably placed on the upper end of the bridge deck during pre-casting, thereby avoiding the safety risks and construction delays caused by hoisting and transportation.

[0050] Preferably, the mounting groove 5 and the connecting crossbeam 6 keep the electric lifting rod 7 vertical to the bridge deck, that is, when the outer formwork 1 or the inner formwork 2 is a curved surface, the mounting groove 5 is installed close to the curved surface, and the side panels on both sides thereof are extended to keep the connecting crossbeam 6 horizontally inserted into the mounting groove 5 and away from the curved surface, thereby keeping the electric lifting rod 7 vertical to the bridge deck, which is used to ensure that the crawler 8 is extended or retracted normally, thereby ensuring the smooth transportation of the formwork body.

[0051] Preferably, the electric lifting rod 7 is a remote-controlled lifting rod, and includes an electric mechanical lifting rod and an electric hydraulic lifting rod, which is used to simplify the construction process and improve the construction efficiency.

[0052] Preferably, the drive motor 71 is a remote control drive motor, and a plurality of the drive motors 71 respectively control the running speeds of the tracks 8 on the sides of the outer template 1 and the inner template 2 in a differential manner to change the direction of the template body.

[0053] Preferably, the multiple driving motors 71 on the side of the outer template 1 operate in the same manner, and the multiple driving motors 71 on the side of the inner template 2 operate in the same manner.

[0054] Preferably, the width of the track 8 is not greater than 1.1 times the width of the back rib of the channel steel, so as to reduce possible collision damage.

[0055] Preferably, there are at least three sets of the electric lifting rods 7 and crawler tracks 8 on the sides of the outer template 1 and the inner template 2 to ensure sufficient transport capacity and facilitate steering.

[0056] Specifically, Figure 2 , Figure 4 and Figure 5 As shown, the positioning components are respectively arranged on the side of the template body and the upper end of the moving component, and are used to monitor the distance between the outer template 1 and the inner template 2, as well as the moving path of the template body. The positioning components include: a first distance meter 9, a second distance meter 10 and a controller 11; wherein, the first distance meter 9 is respectively arranged on the upper end of the outer template 1 and the inner template 2 facing each other, and is respectively arranged on the front and rear sides of the outer template 1 and the inner template 2; the second distance meter 10 is arranged on the upper end of the electric lifting rod 7; the controller 11 is respectively connected to the electric lifting rod 7, the drive motor 71, the first distance meter 9 and the second distance meter 10 for communication. During the actual operation process, the distance between the outer formwork 1 and the inner formwork 2 is measured by the first rangefinder 9, and the monitoring data threshold of the second rangefinder 10 is set by the controller 11, so that when the second rangefinder 10 monitors the data during the transportation of the formwork body, the controller 11 can automatically adjust the drive motor 71 to continuously correct the movement trajectory of the formwork body to ensure that the formwork body moves along the planned route; secondly, when the formwork body is transported to the casting area, the controller 11 controls the electric lifting rod 7 to retract and retract, so that the crawler 8 can be smoothly retracted upward, thereby conveniently dropping the formwork body to the upper end of the bridge deck, thereby improving construction efficiency, reducing costs, and ensuring construction safety.

[0057] Preferably, the monitoring data of the second distance meter 10 is the distance information from the template body to the center line of the road, and the data should be the same for bridge decks at the same stage.

[0058] In an optional embodiment, a removable baffle is provided at the upper end of the bridge deck near the template body, and the length of the baffle is not less than the length of the moving path of the template body and is the same as the distance between the moving path of the template body. At the same time, the monitoring data of the second rangefinder 10 is the distance information from the template body to the baffle, which is used to avoid the influence of equipment or other obstacles that may exist on the bridge deck on the transfer operation of the template body, thereby improving construction safety.

[0059] Preferably, the height of the baffle is higher than the installation height of the second rangefinder 10 and not higher than the height of the inner template 2, so as to reasonably utilize resources and reduce costs.

[0060] Preferably, the controller 11 is a handheld mobile controller, which includes a display area 111 and a control area 112, and is used to simplify construction equipment and improve overall flexibility.

[0061] like Figure 6 As shown, another embodiment of the present invention provides a construction method of a new movable formwork for a bridge concrete guardrail, comprising the following steps:

[0062] S1: Prepare an outer template 1 and an inner template 2 that meet the design requirements, and install a first distance meter 9 on the opposite sides of the outer template 1 and the inner template 2, and install a rubber strip 4 at their bottom ends;

[0063] S2: pre-fix the outer template 1 and the inner template 2 by means of the connecting rod 3 and the fixing accessories 32, monitor the distance between the outer template 1 and the inner template 2 by means of the first distance meter 9, adjust the length of the connecting rod 2 therebetween, and adjust the distance between the outer template 1 and the inner template 2 to meet the design requirements of the guardrail;

[0064] S3: Install moving parts on the opposite sides of the outer template 1 and the inner template 2, and ensure that the electric lifting rod 7 normally drives the crawler 8 to extend out of the bottom ends of the outer template 1 and the inner template 2, and then install the second distance meter 10 to the upper end of the electric lifting rod 7;

[0065] S4: The controller 11 controls the moving part to transfer the template body to the measurement and layout area, and adjusts the position of the template body to the specified position by using the data of the distance between the template body and the road centerline measured by the second distance meter 10. Then, the controller 11 controls the electric lifting rod 7 to retract the crawler 8, thereby lowering the template body to the bridge deck;

[0066] S5: Continue to retract the crawler 8 until the second connection hole 33 and the installation space of the tension bolt are exposed, then install the tension bolt through the second connection hole 33, and install concrete baffles on the front and rear sides of the outer formwork 1 and the inner formwork 2;

[0067] S6: pouring concrete into the cavity between the outer formwork 1, the inner formwork 2 and the concrete baffle through a delivery pipe, and continuously vibrating the cavity with a vibrator to expel air during the pouring process. After that, after the concrete solidifies, hammering the outer formwork 1 and the inner formwork 2 to remove the concrete baffle and the tension bolts;

[0068] S7: Repeat steps S4 to S6 until the construction of the bridge concrete guardrail is completed, and recycle the movable template through the controller 11.

[0069] In an optional embodiment, in step S5, a traction rope is wound around the tension bolts at one end of the outer side of the outer formwork 1 to simplify the subsequent removal operation of the tension bolts and improve construction efficiency and safety.

[0070] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0071] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0072] In this patent, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "includes..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art will readily understand that the above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A new type of mobile formwork for bridge concrete guardrail, characterized in that: include: Template body, moving parts and positioning parts, including: The template body comprises: an outer template (1), an inner template (2), a connecting rod (3) and a rubber strip (4); wherein the outer template (1) and the inner template (2) are both vertically arranged on the upper end of the bridge deck and have a plurality of corresponding first connecting holes (31) on the side; the connecting rod (3) passes through two of the first connecting holes (31) and is respectively fixedly connected to the outer template (1) and the inner template (2) through fixing accessories (32) adapted to the connecting rod (3); the rubber strip (4) is arranged at the bottom ends of the outer template (1) and the inner template (2); The moving parts include: a mounting groove (5), a connecting crossbeam (6), an electric lifting rod (7) and a crawler (8); wherein the mounting groove (5) is respectively arranged on opposite sides of the outer template (1) and the inner template (2); the connecting crossbeam (6) is adapted to the mounting groove (5); one end of the electric lifting rod (7) is connected to the connecting crossbeam (6), and the other end is connected to the crawler (8) via a provided driving motor (71); The positioning component comprises: a first distance meter (9), a second distance meter (10) and a controller (11); wherein the first distance meter (9) is respectively arranged at the upper end of the outer template (1) and the inner template (2) on the opposite side, and is respectively arranged at the front side and the rear side of the outer template (1) and the inner template (2); the second distance meter (10) is arranged at the upper end of the electric lifting rod (7); the controller (11) is respectively connected to the electric lifting rod (7), the driving motor (71), the first distance meter (9) and the second distance meter (10), so that the controller (11) controls the moving component to carry the template body and accurately move to the specified position along the trace left by the measurement and setting-out line.

2. The mobile template according to claim 1, characterized in that: The connecting rod (3) comprises a screw rod and a slide rail, and the matching fixing accessories (32) comprise a fixing bolt, a positioning pin and a buckle.

3. The mobile template according to claim 1, characterized in that: The rubber strip (4) is mainly made of synthetic rubber such as chloroprene rubber or EPDM rubber.

4. The mobile template according to any one of claims 1 to 3, characterized in that: The opposite sides of the outer formwork (1) and the inner formwork (2) are provided with a plurality of channel steel back ribs; The width of the crawler (8) is not greater than 1.1 times the width of the back rib of the channel steel.

5. The mobile template according to any one of claims 1 to 3, characterized in that: The installation groove (5) and the connecting crossbeam (6) enable the electric lifting rod (7) to maintain a vertical state with the bridge deck.

6. The mobile template according to any one of claims 1 to 3, characterized in that: The electric lifting rod (7) is a remote-controlled lifting rod, and includes an electric mechanical lifting rod and an electric hydraulic lifting rod; The controller (11) is a handheld mobile controller.

7. The mobile template according to any one of claims 1 to 3, characterized in that: The driving motor (71) is a remote-controlled driving motor, and a plurality of the driving motors (71) respectively control the running speed of the crawlers 8 on the sides of the outer template (1) and the inner template (2) in a differential manner to change the direction of the template body; The multiple drive motors (71) on the side of the outer template (1) operate in the same manner, and the multiple drive motors (71) on the side of the inner template (2) operate in the same manner.

8. The mobile template according to any one of claims 1 to 3, characterized in that: There are at least three sets of the electric lifting rods (7) and crawlers (8) on the sides of the outer template (1) and the inner template (2).

9. A construction method of a new type of mobile formwork for bridge concrete guardrail, implemented by using the mobile formwork as described in any one of claims 1 to 8, characterized in that: The steps include: S1: preparing an outer template (1) and an inner template (2) that meet the design requirements, installing a first distance meter (9) on the opposite sides of the outer template (1) and the inner template (2), and installing a rubber strip (4) at their bottom ends; S2: pre-fixing the outer template (1) and the inner template (2) by means of a connecting rod (3) and a fixing accessory (32), monitoring the distance between the outer template (1) and the inner template (2) by means of the first distance meter (9), regulating the length of the connecting rod (2) therebetween, and adjusting the distance between the outer template (1) and the inner template (2) to meet the design requirements of the guardrail; S3: Install moving parts on the opposite sides of the outer template (1) and the inner template (2), and ensure that the electric lifting rod (7) normally drives the crawler (8) to extend out of the bottom ends of the outer template (1) and the inner template (2), and then install the second distance meter (10) on the upper end of the electric lifting rod (7); S4: The controller (11) controls the moving part to transfer the template body to the measurement and layout area, and adjusts the position of the template body to a designated position based on the data of the distance between the template body and the road centerline measured by the second distance meter (10). The controller (11) controls the electric lifting rod (7) to retract the crawler (8), thereby lowering the template body to the bridge deck; S5: Continue to retract the crawler (8) until the second connection hole (33) and the installation space for the tension bolts are exposed, then install the tension bolts through the second connection hole (33), and install concrete baffles on both sides of the outer formwork (1) and the inner formwork (2); S6: pouring concrete into the cavity between the outer formwork (1), the inner formwork (2) and the concrete baffle through a delivery pipe, and continuously vibrating the cavity with a vibrator to expel air during the pouring process. After the concrete solidifies, hammering the outer formwork (1) and the inner formwork (2) to remove the concrete baffle and the tension bolts; S7: Repeat steps S4 to S6 until the construction of the bridge concrete guardrail is completed, and recycle the movable template through the controller (11).

10. The mobile template according to claim 9, characterized in that: A detachable baffle is provided at the upper end of the bridge deck near the template body, the length of the baffle is not less than the length of the moving path of the template body, and the distance between the baffle and the moving path of the template body is the same, and at the same time, the monitoring data of the second distance meter (10) is the distance information from the template body to the baffle; The height of the baffle is higher than the installation height of the second distance meter (10) and is not higher than the height of the inner template (2).

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