Formwork dismantling method for bridge guardrail pouring construction

Abstract

The invention relates to the technical field of bridge guardrail construction, in particular to a formwork dismantling method for bridge guardrail pouring construction. The formwork dismantling method for bridge guardrail pouring construction has the beneficial effects that the outer formwork is conveniently installed and dismantled, hoisting equipment is not needed for hoisting the outer formwork, the formwork dismantling method is more convenient, faster, safer and more reliable, the construction efficiency is improved, and meanwhile the construction cost is reduced. The distance between the outer mold and the inner mold can be conveniently adjusted according to the thickness size of a guardrail body needing to be poured, the applicability is higher, the using effect is better, and when the outer mold is installed, fixed and detached, reciprocating knocking vibration can be conducted on the side wall of the outer mold, so that the outer mold moves on the upper surface of a bridge body more smoothly, and the service life of the bridge body is prolonged. And in addition, after use is completed, the working faces of the outer mold and the inner mold can be attached to each other, foreign matter adhesion and collision damage to the working faces are avoided, and the follow-up guardrail pouring quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of bridge guardrail construction, in particular to a method for removing a template used in the pouring construction of a bridge guardrail. Background Art

[0002] Existing bridges generally need to be equipped with guardrails on the outermost box girders to prevent vehicles or pedestrians from falling and form an effective protective structure. However, the existing guardrails are generally cast on site after the bridge is installed. Before the casting construction, it is necessary to install a fixed formwork on the bridge. The formwork mainly includes an inner formwork and an outer formwork, and the formwork is placed on both sides of the steel cage.

[0003] Publication No. CN114953146B discloses a formwork removal device for pouring bridge guardrail construction. However, when the existing formwork removal device for pouring bridge guardrail construction is in use, the outer formwork is in a suspended state during installation and removal, and it needs to be hoisted by hoisting equipment, which is not convenient, fast, safe and reliable. During removal, the outer formwork will adhere to the guardrail body, which will also affect the removal efficiency of the outer formwork, thereby affecting the efficiency and safety of construction. At the same time, it is not convenient to adjust the distance between the inner formwork and the outer formwork according to the thickness of the guardrail. Moreover, after use, the working surfaces of the inner formwork and the outer formwork are prone to adhesion of foreign matter and bump damage, thereby affecting the quality of subsequent guardrail pouring. Summary of the invention

[0004] The present invention aims at the technical problems existing in the prior art and provides a method for removing the formwork for pouring construction of bridge guardrails to solve the problem that when the existing method for removing the formwork for pouring construction of bridge guardrails is in use, the outer formwork is in a suspended state during installation and removal, and needs to be lifted by lifting equipment, which is not convenient, fast, safe and reliable. During removal, the outer formwork will adhere to the guardrail body, which will also affect the removal efficiency of the outer formwork, thereby affecting the efficiency and safety of construction. At the same time, it is not convenient to adjust the distance between the inner formwork and the outer formwork according to the thickness of the guardrail. Moreover, after use, the working surfaces of the inner formwork and the outer formwork are prone to adhesion of foreign matter and bump damage, thereby affecting the quality of subsequent guardrail pouring.

[0005] The technical solution of the present invention to solve the above technical problem is as follows: A method for removing a formwork for pouring construction of a bridge guardrail comprises the following steps: S1: Pre-set, pre-prepare the formwork device and move it to the construction location; S2: pouring construction, after step S1, the formwork device is installed and fixed on both sides of the guardrail steel cage, and concrete is poured; S3: Formwork device removal: after step S2, when the concrete reaches the design strength requirement, the formwork device is removed; The template device includes an inner mold and an outer mold, and the side wall of the inner mold is provided with an adjustable inclined support and a mounting plate, the top of the inner mold is fixedly connected to two symmetrically arranged support plates, and the side walls of the support plates are rotatably connected to a rotating plate via a rotating shaft, the top of the rotating plate is connected to a first movable plate via a moving mechanism, and the side wall of the first movable plate is connected to a second movable plate via a first telescopic mechanism, the second movable plate is fixed to the top of the outer mold, and the rotation of the rotating shaft is driven by a driving mechanism, a distance adjustment mechanism is provided between the inner mold and the outer mold, and the side wall of the outer mold is provided with a knocking mechanism for knocking and vibrating the side wall thereof.

[0006] The beneficial effects of the present invention are: 1) By setting a moving mechanism and a driving mechanism, when using the inner mold, the inner mold is first fixedly installed on the top of the bridge body through an adjustable inclined support and a mounting plate and is located on the inner side of the steel cage. Then, the first rocker is rotated. The rotation of the first rocker drives the rotation of the worm, thereby driving the worm wheel and the rotating shaft to rotate counterclockwise. The rotation of the rotating shaft drives the rotation of the rotating plate, and drives the first moving plate to rotate through the moving mechanism, and then drives the second moving plate and the outer mold to rotate counterclockwise through the first telescopic mechanism, so that the outer mold is rotated to the outside of the steel cage and is in a vertical state. There is no need to use a lifting equipment to lift the outer mold to the outside, which is more convenient, fast, safe and reliable. Then, the second rocker is rotated. The rotation of the second rocker drives the rotation of the first threaded rod, drives the first moving plate to move in a direction close to the inner mold, and drives the second moving plate and the outer mold to move synchronously through the first telescopic mechanism. When the end of the second threaded rod abuts against the side wall of the baffle, the outer mold cannot continue to move. At this time, the first moving plate moves along the side of the first T-shaped guide rod. The outer mold is moved in the direction close to the second movable plate, and at the same time, the first spring is compressed, so as to facilitate the installation and fixation of the outer mold, which is more convenient and quick, and improves the efficiency of construction. Then, the pouring operation can be carried out. After the concrete reaches the design strength requirement, when it needs to be disassembled, the second rocker is rotated in the opposite direction to make the outer mold move in the direction away from the guardrail body. Then, the first rocker is rotated in the opposite direction to drive the rotating plate and the outer mold to rotate clockwise, so as to rotate the outer mold to the side close to the inner mold. Then, the adjustable inclined support and the mounting plate are disassembled from the bridge body, and the inner mold is removed from the side wall of the guardrail body, so as to facilitate the installation and removal of the outer mold, and there is no need to use lifting equipment to lift it. It is more convenient, quick, safe and reliable, and improves the efficiency of construction. After the disassembly is completed, the outer mold can be rotated counterclockwise by the driving mechanism first, and then the working surfaces of the outer mold and the inner mold are fitted through the moving mechanism, which can avoid foreign matter adhering to the working surface and damage caused by bumps and collisions, thereby ensuring the quality of subsequent guardrail pouring.

[0007] 2) By setting an adjustment mechanism, when in use, by turning the knob, the rotation of the knob drives the rotation of the second threaded rod, thereby adjusting the distance between the end of the second threaded rod and the baffle, and the distance between the outer mold and the inner mold can be adjusted according to the thickness of the guardrail body to be cast, which has stronger applicability and better use effect. Moreover, after use, when it is necessary to fit the outer mold and the inner mold, the fixing plate can be fit with the baffle by rotating the knob.

[0008] 3) By setting a knocking mechanism, etc., when the mold is closed, the outer mold is moved in the direction close to the inner mold through the moving mechanism. When the end of the second threaded rod abuts against the side wall of the baffle, the first moving plate gradually moves in the direction close to the second moving plate. At the same time, the first spring is gradually compressed. At this time, the pushing block slides on the second inclined plane, thereby pushing the pushing plate and the first moving block to move downward. At the same time, the third spring is compressed. When the first moving block moves downward, it drives the second moving block and the triangular block to move downward. When the first inclined plane abuts against the side wall of the stopper, the third moving plate is pushed to move in the direction close to the second spring. At the same time, the second spring is compressed. When the triangular block passes the stopper, the third moving plate can move and reset under the second spring. And drive the connecting plate and the knocking pin to move back and forth, and make the knocking pin knock and vibrate the side wall of the outer mold back and forth, so that the movement of the outer mold on the upper surface of the bridge body is smoother, and the mold closing is more convenient and quick. In addition, when the outer mold is disassembled, the first movable plate is driven to move and reset through the moving mechanism. At this time, the pushing plate can move upward and reset under the action of the third spring, and drive the second movable block and the triangular block to move and reset. Similarly, the knocking pin can also knock and vibrate the side wall of the outer mold back and forth, so as to facilitate the subsequent removal of the outer mold. When the first movable plate is against the end of the first T-shaped guide rod, it drives the second movable plate to move, and then drives the outer mold to move away from the guardrail body to realize the demolding operation.

[0009] Based on the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the driving mechanism includes a worm gear fixedly mounted on the side wall of the rotating shaft, and the side wall of the support plate is fixedly connected to two symmetrically arranged fixed blocks, the side wall of the fixed block is rotatably connected to a worm, and one end of the worm passes through the side wall of the fixed block and is fixedly connected to a first rocker wheel.

[0011] The beneficial effect of adopting the above further scheme is that the first rocking wheel is rotated, and the rotation of the first rocking wheel drives the rotation of the worm, thereby driving the worm wheel and the rotating shaft to rotate, and the rotation of the rotating shaft drives the rotation of the rotating plate, and drives the first movable plate to rotate through the moving mechanism, and then drives the second movable plate and the outer mold to rotate through the first telescopic mechanism.

[0012] Further, the moving mechanism includes two symmetrically arranged first connecting blocks fixedly connected to the top of the inner mold, and two symmetrically arranged second connecting blocks fixedly connected to the top of the outer mold, wherein the side wall of one of the first connecting blocks is fixedly connected with a first sleeve rod, and the side wall of the first sleeve rod is sleeved with a first sleeve tube, the other end of the first sleeve tube is fixed to the side wall of one of the second connecting blocks, and the side wall of the other first connecting block is rotatably connected with a first threaded rod, the side wall of the first threaded rod is threadedly connected with a threaded tube, the other end of the threaded tube is fixed to the side wall of the other second connecting block, and the other end of the first threaded rod is fixedly connected with a second rocker.

[0013] The beneficial effect of adopting the above further scheme is that the second rocker is rotated, and the rotation of the second rocker drives the rotation of the first threaded rod, drives the first movable plate to move, and drives the second movable plate and the outer mold to move synchronously through the first telescopic mechanism.

[0014] Furthermore, the adjustment mechanism includes a baffle fixedly connected to the top of the inner mold, and the top of the outer mold is fixedly connected to a fixing plate, the side wall of the fixing plate is rotatably connected to a second threaded rod, and one end of the second threaded rod is fixedly connected to a knob.

[0015] The beneficial effect of adopting the above-mentioned further scheme is that when the end of the second threaded rod abuts against the side wall of the baffle, the outer mold cannot move further, and the rotation of the knob drives the rotation of the second threaded rod, thereby adjusting the distance between the end of the second threaded rod and the baffle, and the distance between the outer mold and the inner mold can be adjusted according to the thickness of the guardrail body to be cast, which has stronger applicability and better use effect. Moreover, after use, when it is necessary to fit the outer mold and the inner mold together, the fixing plate can be fit with the baffle by rotating the knob.

[0016] Furthermore, the first telescopic mechanism includes two symmetrically arranged first T-shaped guide rods fixedly connected to the side walls of the second movable plate, the first movable plate is sleeved on the side walls of the first T-shaped guide rods, and the side walls of the first T-shaped guide rods are sleeved with a first spring.

[0017] The beneficial effect of adopting the above further solution is that when the end of the second threaded rod abuts against the side wall of the baffle, the outer mold cannot move further. At this time, the first movable plate moves along the side wall of the first T-shaped guide rod toward the second movable plate, and at the same time, the first spring is compressed.

[0018] Furthermore, the knocking mechanism includes a third movable plate, and the third movable plate is connected to the side wall of the outer mold through a reset mechanism, the bottom of the third movable plate is fixedly connected with a plurality of connecting plates arranged in an array, the side wall of the connecting plate is fixedly connected with a plurality of knocking pins arranged in an array, and the movement of the third movable plate is driven by the first pushing mechanism.

[0019] The beneficial effect of adopting the above-mentioned further scheme is that when the outer formwork is installed, fixed and removed, the third movable plate is pushed to move back and forth by the first pushing mechanism, and the connecting plate and the knocking pin are driven to move back and forth, and the knocking pin is made to knock and vibrate the side wall of the outer formwork back and forth, which not only makes the movement of the outer formwork on the upper surface of the bridge body smoother, but also facilitates the removal of the outer formwork.

[0020] Furthermore, the reset mechanism includes two symmetrically arranged second T-shaped guide rods fixedly connected to the side walls of the outer mold, the third movable plate is sleeved on the side walls of the second T-shaped guide rods, and the side walls of the second T-shaped guide rods are sleeved with a second spring.

[0021] The beneficial effect of adopting the above further solution is that it guides and resets the movement of the third movable plate.

[0022] Further, the first pushing mechanism includes a stopper fixedly connected to the side wall of the third movable plate, and the top of the outer mold is connected to the first movable block through a second telescopic mechanism, the bottom of the first movable block is fixedly connected to the second movable block, and the side wall of the second movable block is fixedly connected to a plurality of triangular blocks arranged in an array, the triangular block includes two symmetrically arranged first inclined surfaces, and the movement of the first movable block is driven by the second pushing mechanism.

[0023] The beneficial effect of adopting the above-mentioned further scheme is that when the first movable plate moves, the first movable block is pushed to move by the second pushing mechanism, and the movement of the first movable block drives the second movable block and the triangular block to move synchronously. When the first inclined surface abuts against the side wall of the block, the third movable plate is pushed to move in the direction close to the second spring. When the triangular block passes over the block, the third movable plate can move and reset under the action of the second telescopic mechanism, thereby driving the connecting plate and the knocking pin to move back and forth, and causing the knocking pin to knock and vibrate the side wall of the outer mold back and forth.

[0024] Furthermore, the second telescopic mechanism includes two symmetrically arranged third sleeves fixedly connected to the bottom of the first moving block, and a third sleeve rod is inserted into the third sleeve, the lower end of the third sleeve rod is fixed to the top of the outer mold, and the side wall of the third sleeve is sleeved with a third spring.

[0025] The beneficial effect of adopting the above further solution is that it plays a guiding and resetting role on the movement of the first moving block.

[0026] Furthermore, the second pushing mechanism includes a pushing plate fixedly connected to the top of the first moving block, the pushing plate includes a second inclined surface, and the side wall of the first moving plate is fixedly connected to the pushing block.

[0027] The beneficial effect of adopting the above further solution is that when the first movable plate gradually moves toward the direction approaching the second movable plate, the pushing block slides on the second inclined surface, thereby pushing the pushing plate and the first movable block to move downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the use state of the present invention; Figure 2 A schematic diagram of the use state of the present invention from another perspective; Figure 3 It is a schematic diagram of the position of the mobile mechanism of the present invention; Figure 4 It is a structural schematic diagram of the knocking mechanism in the present invention; Figure 5 for Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 6 for Figure 2 A schematic diagram of the enlarged structure at B in the middle; Figure 7 for Figure 3 Schematic diagram of the enlarged structure at C in the middle; Figure 8 for Figure 4 Schematic diagram of the enlarged structure at D in the middle; Fig. 9 for Figure 7 Schematic diagram of the enlarged structure at E in the middle; Fig.10 for Figure 8 The enlarged structural diagram at F in the middle; Fig.11 It is a schematic diagram of the overall process of the present invention.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Bridge body; 201. First T-shaped guide rod; 202. First spring; 301. Worm wheel; 302. Fixing block; 303. Worm; 304. First rocker; 401. First connecting block; 402. Second connecting block; 403. First set of rods; 404. First sleeve; 405. First threaded rod; 406. Threaded tube; 407. Second rocker; 501. Baffle; 502. Second threaded rod; 503. Knob; 504. Fixing plate; 601. Third sleeve; 602. Third set of rods; 603. Third spring; 701. First Three movable plates; 702, connecting plate; 703, knock pin; 801, second T-shaped guide rod; 802, second spring; 901, stop block; 902, first movable block; 903, second movable block; 904, triangular block; 905, first inclined plane; 10, guardrail body; 11, inner mold; 12, outer mold; 13, adjustable oblique support; 14, mounting plate; 15, first movable plate; 16, second movable plate; 17, rotating plate; 18, support plate; 19, rotating shaft; 2001, push plate; 2002, second inclined plane; 2003, push block. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] Existing bridges generally need to be equipped with guardrails on the outermost box girders to prevent vehicles or pedestrians from falling and form an effective protective structure. However, the existing guardrails are generally cast on site after the bridge is installed. Before the casting construction, it is necessary to install a fixed formwork on the bridge. The formwork mainly includes an inner formwork and an outer formwork, and the formwork is placed on both sides of the steel cage.

[0032] After in-depth investigation and research on the formwork removal process, the inventor found that when the existing formwork removal method for bridge guardrail casting construction is in use, the outer formwork is in a suspended state during installation and removal, and it needs to be lifted by lifting equipment, which is not convenient, fast, safe and reliable. During removal, the outer formwork will adhere to the guardrail body, which will also affect the removal efficiency of the outer formwork, and thus affect the efficiency and safety of construction. At the same time, it is not convenient to adjust the distance between the inner and outer forms according to the thickness of the guardrail. Moreover, after use, the working surfaces of the inner and outer forms are prone to adhesion of foreign matter and bump damage, thereby affecting the quality of subsequent guardrail casting. In response to this, the inventor proposed a formwork removal method for bridge guardrail casting construction to solve the above problems.

[0033] The present invention provides the following preferred embodiments like Figure 1-Figure 11 As shown, a method for removing formwork for pouring construction of bridge guardrails comprises the following steps: S1: Pre-set, pre-prepare the formwork device and move it to the construction location; S2: pouring construction, after step S1, the formwork device is installed and fixed on both sides of the guardrail steel cage, and concrete is poured; S3: Formwork device removal: after step S2, when the concrete reaches the design strength requirement, the formwork device is removed; The template device includes an inner mold 11 and an outer mold 12, and the side wall of the inner mold 11 is provided with an adjustable inclined support 13 and a mounting plate 14, the top of the inner mold 11 is fixedly connected to two symmetrically arranged support plates 18, and the side wall of the support plate 18 is rotatably connected to a rotating plate 17 through a rotating shaft 19, the top of the rotating plate 17 is connected to a first movable plate 15 through a moving mechanism, and the side wall of the first movable plate 15 is connected to a second movable plate 16 through a first telescopic mechanism, the second movable plate 16 is fixed to the top of the outer mold 12, and the rotation of the rotating shaft 19 is driven by a driving mechanism, a distance adjustment mechanism is provided between the inner mold 11 and the outer mold 12, and the side wall of the outer mold 12 is provided with a knocking mechanism for knocking and vibrating its side wall, so as to facilitate The outer formwork 12 can be installed and removed without the need for lifting equipment, which is more convenient, fast, safe and reliable, and improves the efficiency of construction. At the same time, it is convenient to adjust the distance between the outer formwork 12 and the inner formwork 11 according to the thickness of the guardrail body 10 to be cast, which has stronger applicability and better use effect. When the outer formwork 12 is installed, fixed and removed, the side wall of the outer formwork 12 can be knocked and vibrated back and forth, which not only makes the movement of the outer formwork 12 on the upper surface of the bridge body 1 smoother, but also facilitates the removal of the outer formwork 12. Moreover, after use, the working surfaces of the outer formwork 12 and the inner formwork 11 can be fitted together to avoid foreign matter adhering to the working surfaces and damage caused by bumps, thereby ensuring the quality of subsequent guardrail casting.

[0034] In this embodiment, Fig. 9 As shown, the driving mechanism includes a worm gear 301 fixedly mounted on the side wall of the rotating shaft 19, and the side wall of the support plate 18 is fixedly connected to two symmetrically arranged fixed blocks 302, the side wall of the fixed block 302 is rotatably connected to a worm 303, and one end of the worm 303 passes through the side wall of the fixed block 302 and is fixedly connected to a first rocking wheel 304, and the first rocking wheel 304 is rotated. The rotation of the first rocking wheel 304 drives the rotation of the worm 303, thereby driving the worm gear 301 and the rotating shaft 19 to rotate, and the rotation of the rotating shaft 19 drives the rotation of the rotating plate 17, and drives the first movable plate 15 to rotate through the moving mechanism, and then drives the second movable plate 16 and the outer mold 12 to rotate through the first telescopic mechanism.

[0035] In this embodiment, Figure 4 and Figure 7As shown, the moving mechanism includes two symmetrically arranged first connecting blocks 401 fixedly connected to the top of the inner mold 11, and two symmetrically arranged second connecting blocks 402 fixedly connected to the top of the outer mold 12, wherein the side wall of one of the first connecting blocks 401 is fixedly connected with a first sleeve rod 403, and the side wall of the first sleeve rod 403 is sleeved with a first sleeve tube 404, the other end of the first sleeve tube 404 is fixed to the side wall of one of the second connecting blocks 402, and the side wall of the other first connecting block 401 is rotatably connected with a first threaded rod 405, the side wall of the first threaded rod 405 is threadedly connected with a threaded tube 406, the other end of the threaded tube 406 is fixed to the side wall of the other second connecting block 402, and the other end of the first threaded rod 405 is fixedly connected with a second rocker 407, the second rocker 407 is rotated, and the rotation of the second rocker 407 drives the rotation of the first threaded rod 405, drives the first moving plate 15 to move, and drives the second moving plate 16 and the outer mold 12 to move synchronously through the first telescopic mechanism.

[0036] In this embodiment, Figure 7 As shown, the adjustment mechanism includes a baffle 501 fixedly connected to the top of the inner mold 11, and a fixing plate 504 is fixedly connected to the top of the outer mold 12, and the side wall of the fixing plate 504 is rotatably connected to the second threaded rod 502, and one end of the second threaded rod 502 is fixedly connected to the knob 503. When the end of the second threaded rod 502 abuts against the side wall of the baffle 501, the outer mold 12 cannot continue to move. By rotating the knob 503, the rotation of the knob 503 drives the rotation of the second threaded rod 502, thereby adjusting the distance between the end of the second threaded rod 502 and the baffle 501. The distance between the outer mold 12 and the inner mold 11 can be adjusted according to the thickness of the guardrail body 10 to be cast, which has stronger applicability and better use effect. After use, when it is necessary to fit the outer mold 12 and the inner mold 11, the fixing plate 504 can be fit with the baffle 501 by rotating the knob 503.

[0037] In this embodiment, Figure 8 As shown, the first telescopic mechanism includes two symmetrically arranged first T-shaped guide rods 201 fixedly connected to the side walls of the second movable plate 16, the first movable plate 15 is sleeved on the side walls of the first T-shaped guide rod 201, and the side walls of the first T-shaped guide rod 201 are sleeved with a first spring 202. When the end of the second threaded rod 502 abuts against the side wall of the baffle 501, the outer mold 12 cannot continue to move. At this time, the first movable plate 15 moves along the side wall of the first T-shaped guide rod 201 toward the second movable plate 16, and at the same time, the first spring 202 is compressed.

[0038] In this embodiment, Figure 4 and Figure 8As shown, the knocking mechanism includes a third movable plate 701, and the third movable plate 701 is connected to the side wall of the outer mold 12 through a reset mechanism, and the bottom of the third movable plate 701 is fixedly connected with a plurality of connecting plates 702 arranged in an array, and the side wall of the connecting plate 702 is fixedly connected with a plurality of knocking pins 703 arranged in an array, and the movement of the third movable plate 701 is driven by the first pushing mechanism. When the outer mold 12 is installed, fixed and removed, the third movable plate 701 is pushed to move back and forth by the first pushing mechanism, and the connecting plate 702 and the knocking pin 703 are driven to move back and forth, and the knocking pin 703 is made to knock and vibrate the side wall of the outer mold 12 back and forth, which not only makes the movement of the outer mold 12 on the upper surface of the bridge body 1 smoother, but also facilitates the removal of the outer mold 12.

[0039] In this embodiment, Figure 8 As shown, the reset mechanism includes two symmetrically arranged second T-shaped guide rods 801 fixedly connected to the side walls of the outer mold 12, the third movable plate 701 is sleeved on the side walls of the second T-shaped guide rods 801, and the side walls of the second T-shaped guide rods 801 are sleeved with a second spring 802, which guides and resets the movement of the third movable plate 701.

[0040] In this embodiment, Figure 8 and Fig.10 As shown, the first pushing mechanism includes a stopper 901 fixedly connected to the side wall of the third moving plate 701, and the top of the outer mold 12 is connected to the first moving block 902 through the second telescopic mechanism, the bottom of the first moving block 902 is fixedly connected to the second moving block 903, and the side wall of the second moving block 903 is fixedly connected to a plurality of triangular blocks 904 arranged in an array, the triangular block 904 includes two symmetrically arranged first inclined surfaces 905, and the movement of the first moving block 902 is pushed by the second pushing mechanism. When the first moving plate 15 moves, the second pushing mechanism The first movable block 902 is pushed to move, and the movement of the first movable block 902 drives the second movable block 903 and the triangular block 904 to move synchronously. When the first inclined surface 905 abuts against the side wall of the stop block 901, the third movable plate 701 is pushed to move toward the direction close to the second spring 802. When the triangular block 904 passes over the stop block 901, the third movable plate 701 can move and reset under the action of the second telescopic mechanism, thereby driving the connecting plate 702 and the knocking pin 703 to move back and forth, and causing the knocking pin 703 to knock and vibrate the side wall of the outer mold 12 back and forth.

[0041] In this embodiment, Figure 8As shown, the second telescopic mechanism includes two symmetrically arranged third sleeves 601 fixedly connected to the bottom of the first moving block 902, and a third sleeve rod 602 is inserted into the third sleeve 601, the lower end of the third sleeve rod 602 is fixed to the top of the outer mold 12, and the side wall of the third sleeve 601 is sleeved with a third spring 603, which guides and resets the movement of the first moving block 902.

[0042] In this embodiment, Figure 8 As shown, the second pushing mechanism includes a pushing plate 2001 fixedly connected to the top of the first moving block 902, the pushing plate 2001 includes a second inclined surface 2002, and the side wall of the first moving plate 15 is fixedly connected with a pushing block 2003. When the first moving plate 15 gradually moves toward the direction approaching the second moving plate 16, the pushing block 2003 slides on the second inclined surface 2002, thereby pushing the pushing plate 2001 and the first moving block 902 to move downward.

[0043] The specific method of use of the present invention is as follows: When in use, first, the inner mold 11 is fixedly installed on the top of the bridge body 1 and on the inner side of the steel cage through the adjustable inclined support 13 and the mounting plate 14, and then the first rocker 304 is rotated. The rotation of the first rocker 304 drives the rotation of the worm 303, thereby driving the worm wheel 301 and the rotating shaft 19 to rotate counterclockwise, and the rotation of the rotating shaft 19 drives the rotation of the rotating plate 17, and drives the first movable plate 15 to rotate through the moving mechanism, and then drives the second movable plate 16 and the outer mold 12 to rotate counterclockwise through the first telescopic mechanism, so that the outer mold 12 is rotated to the outside of the steel cage and is in a vertical state, and there is no need to use lifting equipment to lift the outer mold 12 to the outside, which is more convenient, fast, safe and reliable; Next, by rotating the knob 503, the rotation of the knob 503 drives the rotation of the second threaded rod 502, thereby adjusting the distance between the end of the second threaded rod 502 and the baffle 501, and adjusting the distance between the outer mold 12 and the inner mold 11 according to the thickness of the guardrail body 10 to be cast, which has stronger applicability and better use effect; Then, the second rocking wheel 407 is rotated, and the rotation of the second rocking wheel 407 drives the rotation of the first threaded rod 405, drives the first movable plate 15 to move in the direction close to the inner mold 11, and drives the second movable plate 16 and the outer mold 12 to move synchronously through the first telescopic mechanism. When the end of the second threaded rod 502 abuts against the side wall of the baffle 501, the outer mold 12 cannot move further. At this time, the first movable plate 15 moves along the side wall of the first T-shaped guide rod 201 in the direction close to the second movable plate 16. At the same time, the first spring 202 is compressed, so as to facilitate the installation and fixation of the outer mold 12, which is more convenient and quick, and improves the efficiency of construction. Then, the pouring operation can be carried out; At the same time, when the first movable plate 15 gradually moves toward the direction close to the second movable plate 16, the first spring 202 is gradually compressed. At this time, the pushing block 2003 slides on the second inclined surface 2002, thereby pushing the pushing plate 2001 and the first movable block 902 to move downward. At the same time, the third spring 603 is compressed. When the first movable block 902 moves downward, the second movable block 903 and the triangular block 904 are driven to move downward. When the first inclined surface 905 abuts against the side wall of the stopper 901, the third movable plate 701 is pushed to move toward the direction close to the second spring 802. At the same time, the second spring 802 is compressed. When the triangular block 904 passes over the stopper 901, the third movable plate 701 can be reset under the second spring 802, thereby driving the connecting plate 702 and the knocking pin 703 to reciprocate, and making the knocking pin 703 reciprocate and knock the side wall of the outer mold 12 to vibrate, so that the outer mold 12 moves more smoothly on the upper surface of the bridge body 1, making the mold closing more convenient and quick; After the concrete reaches the design strength requirement, when it is necessary to disassemble, the second rocker 407 is rotated in the opposite direction to move the outer mold 12 away from the guardrail body 10, and then the first rocker 304 is rotated in the opposite direction to drive the rotating plate 17 and the outer mold 12 to rotate clockwise, so that the outer mold 12 is rotated to the side close to the inner mold 11, and then the adjustable inclined support 13 and the mounting plate 14 are disassembled from the bridge body 1, and the inner mold 11 is removed from the side wall of the guardrail body 10, so as to facilitate the installation and removal of the outer mold 12, and there is no need to use lifting equipment to lift it, which is more convenient, fast, safe and reliable, and improves the efficiency of construction. After the disassembly is completed, the outer mold 12 can be rotated counterclockwise by the driving mechanism, and then the working surfaces of the outer mold 12 and the inner mold 11 are made to fit together by the moving mechanism, which can avoid foreign matter adhering to the working surface and damage caused by bumps, thereby ensuring the quality of subsequent guardrail pouring; In addition, when the outer mold 12 is disassembled, the first movable plate 15 is driven to move and reset through the moving mechanism. At this time, the push plate 2001 can move upward and reset under the action of the third spring 603, and drive the second movable block 903 and the triangular block 904 to move and reset. Similarly, the knocking pin 703 can also reciprocate and knock and vibrate the side wall of the outer mold 12, so as to facilitate the subsequent removal of the outer mold 12. When the first movable plate 15 is against the end of the first T-shaped guide rod 201, it drives the second movable plate 16 to move, and then drives the outer mold 12 to move away from the guardrail body 10, thereby realizing the demolding operation.

[0044] In summary: the beneficial effects of the present invention are specifically reflected in the convenience of installing and removing the outer mold 12. There is no need to use lifting equipment to lift it, which is more convenient, fast, safe and reliable, and improves the efficiency of construction. At the same time, it is convenient to adjust the distance between the outer mold 12 and the inner mold 11 according to the thickness of the guardrail body 10 to be cast. It has stronger applicability and better use effect. When the outer mold 12 is installed, fixed and removed, the side wall of the outer mold 12 can be knocked and vibrated back and forth, which not only makes the movement of the outer mold 12 on the upper surface of the bridge body 1 smoother, but also facilitates the removal of the outer mold 12. Moreover, after use, the working surfaces of the outer mold 12 and the inner mold 11 can be fitted to avoid foreign matter adhering to the working surfaces and damage caused by bumps, thereby ensuring the quality of subsequent guardrail pouring.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for removing formwork for pouring construction of bridge guardrail, characterized in that: The following steps are involved: S1: Pre-set, pre-prepare the formwork device and move it to the construction location; S2: pouring construction, after step S1, the formwork device is installed and fixed on both sides of the guardrail steel cage, and concrete is poured; S3: Formwork device removal: after step S2, when the concrete reaches the design strength requirement, the formwork device is removed; The template device comprises an inner mold (11) and an outer mold (12), and the side wall of the inner mold (11) is provided with an adjustable inclined support (13) and a mounting plate (14), the top of the inner mold (11) is fixedly connected to two symmetrically arranged support plates (18), and the side wall of the support plate (18) is rotatably connected to a rotating plate (17) via a rotating shaft (19).

2. A method for removing formwork for pouring bridge guardrail according to claim 1, characterized in that: The top of the rotating plate (17) is connected to the first movable plate (15) via a moving mechanism, and the side wall of the first movable plate (15) is connected to the second movable plate (16) via a first telescopic mechanism; the second movable plate (16) is fixed to the top of the outer mold (12), and the rotation of the rotating shaft (19) is driven by a driving mechanism.

3. A method for removing formwork for pouring bridge guardrail according to claim 2, characterized in that: A distance adjustment mechanism is provided between the inner mold (11) and the outer mold (12), and a knocking mechanism for knocking and vibrating the side wall of the outer mold (12); the driving mechanism comprises a worm gear (301) fixedly sleeved on the side wall of the rotating shaft (19), and the side wall of the support plate (18) is fixedly connected to two symmetrically arranged fixed blocks (302), the side wall of the fixed block (302) is rotatably connected to a worm (303), and one end of the worm (303) passes through the side wall of the fixed block (302) and is fixedly connected to a first rocking wheel (304); the moving mechanism comprises a worm gear (301) fixedly connected to the inner mold (11); ) is provided with two symmetrically arranged first connecting blocks (401) at the top, and the top of the outer mold (12) is fixedly connected to two symmetrically arranged second connecting blocks (402), wherein the side wall of one of the first connecting blocks (401) is fixedly connected to a first sleeve rod (403), and the side wall of the first sleeve rod (403) is sleeved with a first sleeve tube (404), the other end of the first sleeve tube (404) is fixed to the side wall of one of the second connecting blocks (402), and the side wall of the other first connecting block (401) is rotatably connected to a first threaded rod (405), and the side wall of the first threaded rod (405) is threadedly connected to a threaded rod (406). The first threaded rod (405) is provided with a threaded tube (406), the other end of the threaded tube (406) is fixed to the side wall of another second connecting block (402), and the other end of the first threaded rod (405) is fixedly connected to the second rocker (407); the knocking mechanism comprises a third movable plate (701), and the third movable plate (701) is connected to the side wall of the outer mold (12) through a reset mechanism, the bottom of the third movable plate (701) is fixedly connected to a plurality of connecting plates (702) arranged in an array, the side wall of the connecting plate (702) is fixedly connected to a plurality of knocking pins (703) arranged in an array, and the movable plate (701) is provided with a plurality of connecting plates (702) arranged in an array. The movement is pushed by a first pushing mechanism; the first pushing mechanism comprises a stopper (901) fixedly connected to a side wall of the third moving plate (701); the top of the outer mold (12) is connected to a first moving block (902) via a second telescopic mechanism; the bottom of the first moving block (902) is fixedly connected to a second moving block (903); the side wall of the second moving block (903) is fixedly connected to a plurality of triangular blocks (904) arranged in an array; the triangular blocks (904) comprise two symmetrically arranged first inclined surfaces (905); and the movement of the first moving block (902) is pushed by the second pushing mechanism.

4. A method for removing formwork for pouring construction of bridge guardrail according to claim 3, characterized in that: The adjustment mechanism comprises a baffle (501) fixedly connected to the top of the inner mold (11), and a fixing plate (504) fixedly connected to the top of the outer mold (12), a second threaded rod (502) rotatably connected to the side wall of the fixing plate (504), and a knob (503) fixedly connected to one end of the second threaded rod (502).

5. A method for removing formwork for pouring construction of bridge guardrail according to claim 3, characterized in that: The first telescopic mechanism comprises two symmetrically arranged first T-shaped guide rods (201) fixedly connected to the side wall of the second movable plate (16); the first movable plate (15) is sleeved on the side wall of the first T-shaped guide rod (201); and the side wall of the first T-shaped guide rod (201) is sleeved with a first spring (202).

6. A method for removing formwork for pouring bridge guardrail construction according to claim 3, characterized in that: The reset mechanism comprises two symmetrically arranged second T-shaped guide rods (801) fixedly connected to the side walls of the outer mold (12); the third movable plate (701) is sleeved on the side walls of the second T-shaped guide rods (801); and the side walls of the second T-shaped guide rods (801) are sleeved with second springs (802).

7. A method for removing formwork for pouring bridge guardrail according to claim 6, characterized in that: The second telescopic mechanism comprises two symmetrically arranged third sleeves (601) fixedly connected to the bottom of the first moving block (902), and a third sleeve rod (602) is inserted into the third sleeve (601).

8. A method for removing formwork for pouring bridge guardrail according to claim 7, characterized in that: The lower end of the third sleeve rod (602) is fixed to the top of the outer mold (12), and the side wall of the third sleeve tube (601) is sleeved with a third spring (603).

9. A method for removing formwork for pouring bridge guardrail according to claim 8, characterized in that: The second pushing mechanism comprises a pushing plate (2001) fixedly connected to the top of the first moving block (902), the pushing plate (2001) comprises a second inclined surface (2002), and the side wall of the first moving plate (15) is fixedly connected to a pushing block (2003).

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