A formwork support device for bridge and culvert construction

Abstract

The present invention relates to the technical field of bridge and culvert construction, and discloses a formwork support device for bridge and culvert construction, including a support frame. A top formwork is fixedly installed at the top of the support frame. Splicing grooves are formed at the bottoms of the left and right sides of the top formwork. Dislocation lifting components are arranged in an array on both the left and right sides of the support frame. A side formwork is fixedly installed on the side of the dislocation lifting component away from the support frame. A flange inserted into the splicing groove is integrally formed at the top of the side formwork. A rubber layer is fixedly installed at the top of the flange. Under the pulling force of the tension spring, while the second support plate moves downward, it moves closer to the support frame along the top of the first support plate, so that the side formwork moves downward and approaches the support frame until the end of the flange abuts against the side of the support frame. At this time, the separation of the side formwork from the top formwork is completed, thus achieving the effect of the separable design of the top formwork and the side formwork, and the connection between the top formwork and the side formwork is tight.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge and culvert construction, and specifically to a formwork support device for bridge and culvert construction. Background Technique

[0002] Bridge and culvert are the general terms for bridges and culverts. During the road construction process, in order to cross a river, it is generally necessary to set up a bridge or a culvert at the river channel. During the construction of the bridge and culvert, formwork support equipment is required for formwork support, then concrete is poured. After the concrete solidifies, demoulding is carried out to form the bridge and culvert.

[0003] Generally, for the formwork support equipment in bridge and culvert construction, at the bottom support formwork, there is a top formwork and two side formworks. When demoulding after pouring the concrete and the concrete solidifies, generally, the side formwork rotates inwards along the connection with the top formwork to separate the side formwork from the side wall of the culvert. Then, the top formwork and the side formwork move downwards as a whole to separate from the inner wall of the culvert, and then the formwork support is translated to carry out subsequent culvert construction. During this process, the top formwork and the side formwork need to rotate relative to each other, and the connection part is prone to damage due to rotation fatigue, and there are easy to appear gaps, causing concrete leakage. Moreover, there are multiple groups of hydraulic telescopic rods between the side formwork and the support frame. When the side formwork deflects, the elongation amounts of the two hydraulic telescopic rods in each group are not the same. Therefore, the control program for the elongation and shortening of the hydraulic telescopic rods is also relatively complex.

[0004] We propose a formwork support device with a separable top formwork and side formwork, and through a simple dislocation lifting component, the connection and separation of the top formwork and the side formwork are realized, achieving the effects of convenient splicing and demoulding and a simple control program, and then propose a formwork support device for bridge and culvert construction. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the present invention provides a formwork support device for bridge and culvert construction, which has the advantages of convenient demoulding and preventing damage and gaps at the connection between the top formwork and the side formwork, and solves the problem that the rotation of the side formwork during demoulding is easy to cause damage to the connection with the top formwork and even appear gaps.

[0007] (2) Technical Solutions

[0008] To achieve the purpose of convenient demoulding and preventing gaps at the connection between the top formwork and the side formwork, the present invention provides the following technical solutions: A formwork device for bridge and culvert construction, including a support frame, a top formwork is fixedly installed at the top of the support frame, splicing grooves are respectively opened at the bottoms of the left and right sides of the top formwork, misaligned lifting components are arranged in an array on both the left and right sides of the support frame, a side formwork is fixedly installed on the side of the misaligned lifting component away from the support frame, a flange inserted into the splicing groove is integrally formed at the top of the side formwork, and a rubber layer is fixedly installed at the top of the flange.

[0009] Preferably, the misaligned lifting component includes fixing plates arranged in an array on both the left and right sides of the support frame, a second hydraulic telescopic rod is fixedly installed at the top of the side of the fixing plate away from the support frame, a first support plate is fixedly installed at the output end of the top of the second hydraulic telescopic rod, a slide rail fixedly installed on the side of the support frame is slidably connected to the side of the first support plate away from the side formwork, a second support plate is abutted against the top of the first support plate, the second support plate is welded to the inside of the side formwork, chutes are respectively opened on the opposite sides of the first support plate and the second support plate, sliders are fixedly installed at the ends of the first support plate and the second support plate, the slider at the end of the first support plate is slidably connected to the chute opened on the second support plate, the slider at the end of the second support plate is slidably connected to the chute opened on the first support plate, tension springs are fixedly installed between the opposite sides of the two sliders and the end faces of the chutes respectively, a wedge block is fixedly installed at the top of the second support plate, and a second wedge block is fixedly installed on the side of the support frame, and the inclined surfaces of the wedge block and the second wedge block face each other.

[0010] Preferably, a reinforcing rib is fixedly installed between the fixing plate and the support frame, and the top end of the second hydraulic telescopic rod is fixedly installed at one end of the first support plate close to the side formwork.

[0011] Preferably, the cross section of the slider is in an inverted "T" shape, and rotating wheels are rotatably connected to both the front and rear sides of the slider, and the assembly of the slider and the rotating wheel is adapted to the chute.

[0012] Preferably, balls are arranged in an array on both the inclined surface and the end away from the support frame of the second wedge block, and the wedge block abuts against the surface of the balls arranged on the surface of the second wedge block.

[0013] Preferably, first hydraulic telescopic rods are fixedly arranged in an array at the bottoms of both the left and right sides of the support frame, rollers are rotatably connected to the bottom ends of the first hydraulic telescopic rods, two I-beams distributed left and right are fixedly installed on both the front and rear sides of the support frame, a jack is abutted against the bottom of the I-beam, and a base is fixedly installed at the bottom of the jack.

[0014] Preferably, the bottom of the side formwork extends between the bottom of the support frame and the roller.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present invention provides a formwork support device for bridge and culvert construction, which has the following beneficial effects:

[0017] 1. For the formwork support device for bridge and culvert construction, when the output end of the second hydraulic telescopic rod contracts, it drives the first support plate and the second support plate to move downward synchronously, and the side formwork follows the second support plate to move downward synchronously. When the assembly of the flange and the rubber layer disengages from the splicing groove, the second support plate continues to move downward. Under the pulling force of the tension spring, the two sliders move away from each other, driving the second wedge block to contact the inclined surface of the wedge block. At the same time, the side formwork moves obliquely downward. When the second wedge block separates from the wedge block, under the pulling force of the tension spring, while the second support plate moves downward, it moves closer to the support frame along the top of the first support plate, so that the side formwork moves downward and closer to the support frame until the end of the flange abuts against the side of the support frame. At this time, the separation of the side formwork from the top formwork is completed, and the top of the side formwork is folded to the bottom of the top formwork. Thus, the effect of separable design of the top formwork and the side formwork is achieved, and when the top formwork and the side formwork are connected, they are tight, avoiding gaps, ensuring the concrete pouring effect, and the movement process of the second hydraulic telescopic rod is simple during the splicing of the top formwork and the side formwork, and the control program is simple.

[0018] 2. For the formwork support device for bridge and culvert construction, when the output end of the jack contracts, it drives the assembly of the support frame and the top formwork to move downward, and the side formwork moves downward synchronously until the output end of the first hydraulic telescopic rod is completely contracted. Then, the assembly of the jack and the base is removed, and the assembly of the first hydraulic telescopic rod and the roller is used to support the assembly of the support frame, the top formwork, the side formwork and the dislocation lifting component. At this time, the support frame can be pulled out of the culvert to complete demoulding. Thus, the effect that the support frame, the top formwork and the side formwork are easy to be removed from the culvert during demoulding is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of a formwork support device for bridge and culvert construction proposed by the present invention;

[0020] Figure 2 is a Figure 1 detailed enlarged structural schematic diagram at A in the formwork support device for bridge and culvert construction proposed by the present invention;

[0021] Figure 3 is a structural schematic diagram before the movement of the dislocation lifting component of a formwork support device for bridge and culvert construction proposed by the present invention;

[0022] Figure 4 is a structural schematic diagram during the movement of the dislocation lifting component of a formwork support device for bridge and culvert construction proposed by the present invention;

[0023] Figure 5 Schematic diagram of the structure after the movement of the dislocation lifting component of a formwork support device for bridge and culvert construction proposed by the present invention;

[0024] Figure 6 Schematic diagram of the assembly cross-section structure of the first support plate and the second support plate of a formwork support device for bridge and culvert construction proposed by the present invention.

[0025] In the figure: 1, support frame; 2, first hydraulic telescopic rod; 3, roller; 4, I-beam; 5, jack; 6, base; 7, top formwork; 8, side formwork; 9, dislocation lifting component; 71, splicing groove; 81, flange; 82, rubber layer; 91, fixing plate; 911, reinforcing rib; 92, second hydraulic telescopic rod; 93, first support plate; 931, slide rail; 94, second support plate; 95, chute; 96, slider; 961, runner; 97, tension spring; 98, first wedge block; 99, second wedge block; 991, ball. Specific implementation manner

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figure 1 , a formwork support device for bridge and culvert construction, including a support frame 1. At the bottom of both the left and right sides of the support frame 1, a first hydraulic telescopic rod 2 is fixedly arranged in an array. The bottom end of the first hydraulic telescopic rod 2 is rotatably connected to a roller 3. On the front and rear sides of the support frame 1, two I-beams 4 distributed left and right are fixedly installed. The bottom of the I-beam 4 abuts against a jack 5, and the bottom of the jack 5 is fixedly installed with a base 6. Thus, the assembly of the jack 5 and the base 6 can be separated from the I-beam 4. When demolding, the assembly of the jack 5 and the base 6 is removed, and the assembly of the first hydraulic telescopic rod 2 and the roller 3 is used for support. Through the arrangement of the roller 3, it is convenient to move the support frame 1 out of the culvert. When formwork support is carried out, the support frame 1 is supported jointly by the assembly of the first hydraulic telescopic rod 2 and the roller 3 and the assembly of the jack 5 and the base 6.

[0028] Please refer to Figure 1-2, a top formwork 7 is fixedly installed at the top of the support frame 1. Splicing grooves 71 are opened at the bottoms of the left and right sides of the top formwork 7. Dislocation lifting components 9 are arranged in an array on both the left and right sides of the support frame 1. A side formwork 8 is fixedly installed on the side of the dislocation lifting component 9 away from the support frame 1. A flange 81 inserted into the splicing groove 71 is integrally formed at the top of the side formwork 8. A rubber layer 82 is fixedly installed at the top of the flange 81. By inserting the flange 81 into the splicing groove 71 opened in the top formwork 7, the top formwork 7 and the side formwork 8 are connected to each other. And through the setting of the rubber layer 82, it is avoided that there are gaps when the rubber layer 82 is connected to the top formwork 7, ensuring the fitting degree. The bottom of the side formwork 8 extends between the bottom of the support frame 1 and the roller 3, and a distance for the side formwork 8 to descend is reserved.

[0029] Please refer to Figures 3-5 , the dislocation lifting component 9 includes fixing plates 91 arranged in an array on both the left and right sides of the support frame 1. A second hydraulic telescopic rod 92 is fixedly installed at the top of the side of the fixing plate 91 away from the support frame 1. A reinforcing rib 911 is fixedly installed between the fixing plate 91 and the support frame 1. The top end of the second hydraulic telescopic rod 92 is fixedly installed at one end of the first support plate 93 close to the side formwork 8. By installing the second hydraulic telescopic rod 92 close to the side formwork 8, the center of gravity of the side formwork 8 is at the position of the second hydraulic telescopic rod 92, ensuring the stability of the second hydraulic telescopic rod 92 in supporting the side formwork 8. And in cooperation with the setting of the reinforcing rib 911, the firmness of the connection between the fixing plate 91 and the support frame 1 is improved. A first support plate 93 is fixedly installed at the top output end of the second hydraulic telescopic rod 92. A slide rail 931 fixedly installed on the side of the support frame 1 is slidably connected to the side of the first support plate 93 away from the side formwork 8. The cross-section of the slide rail 931 is in a "T" shape. An installation groove adapted to the slide rail 931 is arranged at the end of the first support plate 93, so that the first support plate 93 can slide up and down along the slide rail 931 and prevent the first support plate 93 from detaching from the slide rail 931. The top of the first support plate 93 abuts against a second support plate 94, and the second support plate 94 is welded to the inner side of the side formwork 8. Chute grooves 95 are opened on the opposite sides of the first support plate 93 and the second support plate 94. Sliding blocks 96 are fixedly installed at the ends of the first support plate 93 and the second support plate 94. The sliding block 96 at the end of the first support plate 93 is slidably connected to the chute groove 95 opened in the second support plate 94, and the sliding block 96 at the end of the second support plate 94 is slidably connected to the chute groove 95 opened in the first support plate 93, enabling the second support plate 94 and the first support plate 93 to slide relative to each other.

[0030] Please refer to Figures 3-6, the cross-section of the slider 96 is in an inverted "T" shape. Rotating wheels 961 are rotatably connected to both the front and rear sides of the slider 96. The assembly of the slider 96 and the rotating wheels 961 is adapted to the sliding groove 95, preventing the assembly of the slider 96 and the rotating wheels 961 from disengaging from the sliding groove 95. And through the arrangement of the rotating wheels 961, the friction of the slider 96 sliding in the sliding groove 95 is reduced. Pull springs 97 are fixedly installed between the opposite sides of the two sliders 96 and the end faces of the sliding groove 95 respectively. A wedge block 98 is fixedly installed at the top of the second support plate 94, and a second wedge block 99 is fixedly installed on the side surface of the support frame 1. The inclined surfaces of the wedge block 98 and the second wedge block 99 face each other. Ball bearings 991 are arranged in an array on both the inclined surface of the second wedge block 99 and the end away from the support frame 1. The wedge block 98 abuts against the ball bearings 991 arranged on the surface of the second wedge block 99.

[0031] During use, the support frame 1 is lifted by the simultaneous extension of the jack 5 and the first hydraulic telescopic rod 2. The assembly of the first hydraulic telescopic rod 2 and the roller 3 and the assembly of the jack 5 and the base 6 jointly support the support frame 1.

[0032] As Figure 5 shown, by the extension of the second hydraulic telescopic rod 92, the first support plate 93 is driven to move upward along the slide rail 931. The first support plate 93 carries the second support plate 94 and the side formwork 8 to move upward synchronously. When the inclined surface of the wedge block 98 abuts against the inclined surface of the second wedge block 99, as Figure 4 shown, under the extrusion of the inclined surface of the second wedge block 99, the wedge block 98 drives the second support plate 94 to move away from the support frame 1 along the surface of the first support plate 93. The ball bearings 991 arranged on the surface of the second wedge block 99 make the relative sliding between the wedge block 98 and the second wedge block 99 smoother. At the same time, the two sliders 96 move towards each other inside the sliding groove 95, stretching the pull spring 97;

[0033] While the second support plate 94 is moving, the side formwork 8 moves outward synchronously with the second support plate 94 and moves upward at the same time, making the assembly of the flange 81 and the rubber layer 82 tilt and move upward and outward. When the outer end of the inclined surface of the second wedge block 99 moves to the inner end of the second support plate 94, the assembly of the flange 81 and the rubber layer 82 just moves to the bottom of the splicing groove 71 opened on the top formwork 7;

[0034] After that, the output end of the second hydraulic telescopic rod 92 continues to extend. The side of the second support plate 94 away from the side formwork 8 abuts against and slides on the ball bearings 991 at the end of the second wedge block 99, making the side formwork 8 move vertically upward following the second support plate 94, so that the assembly of the flange 81 and the rubber layer 82 is inserted into the splicing groove 71 opened on the top formwork 7, and through the extrusion of the rubber layer 82 by the top formwork 7, the side formwork 8 is connected more tightly with the top formwork 7, preventing the generation of gaps. At this time, the connection between the top formwork 7 and the side formwork 8 can be completed.

[0035] When demoulding, the output end of the hydraulic telescopic rod 2 92 can be contracted to drive the support plate 1 93 and the support plate 2 94 to move downward synchronously, and the side support template 8 follows the support plate 2 94 to move downward synchronously. When the assembly of the flange 81 and the rubber layer 82 is separated from the splicing groove 71, the support plate 2 94 continues to move downward, and the slider 96 moves back to back under the tension of the tension spring 97, driving the inclined surfaces of the wedge block 2 99 and the wedge block 98 to contact each other. At the same time, the side support template 8 moves downward obliquely. When the wedge block 2 99 is separated from the wedge block 98, under the tension of the tension spring 97, the support plate 2 94 moves downward and approaches the support frame 1 along the top of the support plate 1 , so that the side support template 8 moves downward and approaches the support frame 1 until the end of the flange 81 abuts against the side of the support frame 1. At this time, the side support template 8 is separated from the top support template 7, and the top of the side support template 8 is retracted to the bottom of the top support template 7.

[0036] Then, the output end of the jack 5 contracts to drive the assembly of the support frame 1 and the top support formwork 7 to move downward, and the side support formwork 8 moves downward synchronously until the output end of the hydraulic telescopic rod 2 is completely contracted, and then the assembly of the jack 5 and the base 6 is removed, and the assembly of the support frame 1, the top support formwork 7, the side support formwork 8 and the offset lifting component 9 is supported by the assembly of the hydraulic telescopic rod 2 and the roller 3. At this time, the support frame 1 can be pulled out of the culvert to complete the demoulding.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A formwork support device for bridge and culvert construction, comprising a support frame (1), characterized in that: A top formwork support (7) is fixedly installed at the top of the support frame (1). Splicing grooves (71) are formed at the bottoms of the left and right sides of the top formwork support (7). Dislocation lifting components (9) are arranged in an array on both the left and right sides of the support frame (1). A side formwork support (8) is fixedly installed on the side of the dislocation lifting component (9) away from the support frame (1). A flange (81) inserted into the splicing groove (71) is integrally formed at the top of the side formwork support (8). A rubber layer (82) is fixedly installed at the top of the flange (81). The dislocation lifting component (9) includes fixing plates (91) arranged in an array on both the left and right sides of the support frame (1). A second hydraulic telescopic rod (92) is fixedly installed at the top of the side of the fixing plate (91) away from the support frame (1). A first support plate (93) is fixedly installed at the top output end of the second hydraulic telescopic rod (92). A slide rail (931) fixedly installed on the side of the support frame (1) is slidably connected to the side of the first support plate (93) away from the side formwork support (8). A second support plate (94) is abutted against the top of the first support plate (93). The second support plate (94) is welded to the inner side of the side formwork support (8). Chute grooves (95) are formed on the opposite sides of the first support plate (93) and the second support plate (94). Sliders (96) are fixedly installed at the ends of the first support plate (93) and the second support plate (94). The slider (96) at the end of the first support plate (93) is slidably connected to the chute groove (95) formed in the second support plate (94). The slider (96) at the end of the second support plate (94) is slidably connected to the chute groove (95) formed in the first support plate (93). A tension spring (97) is fixedly installed between the opposite sides of the two sliders (96) and the end faces of the chute grooves (95). A wedge block (98) is fixedly installed at the top of the second support plate (94). A second wedge block (99) is fixedly installed on the side of the support frame (1). The inclined surfaces of the wedge block (98) and the second wedge block (99) face each other.

2. The formwork erection equipment for bridge and culvert construction according to claim 1, wherein: Reinforcing ribs (911) are fixedly installed between the fixing plates (91) and the support frame (1). The top end of the second hydraulic telescopic rod (92) is fixedly installed at one end of the first support plate (93) close to the side formwork support (8).

3. The formwork equipment for bridge and culvert construction according to claim 1, characterized in that: The cross-section of the slider (96) is in an inverted "T" shape. Rotating wheels (961) are rotatably connected to the front and rear sides of the slider (96). The assembly of the slider (96) and the rotating wheels (961) is adapted to the chute groove (95).

4. The formwork equipment for bridge and culvert construction according to claim 1, characterized in that: Ball bearings (991) are arranged in an array on the inclined surface and the end away from the support frame (1) of the second wedge block (99). The wedge block (98) abuts against the surface of the ball bearings (991) arranged on the surface of the second wedge block (99).

5. The formwork support equipment for bridge and culvert construction according to claim 1, characterized in that: First hydraulic telescopic rods (2) are fixedly arranged in an array at the bottoms of both the left and right sides of the support frame (1). The bottom ends of the first hydraulic telescopic rods (2) are rotatably connected to rollers (3). Two I-beams (4) distributed left and right are fixedly installed on both the front and rear sides of the support frame (1). Jacks (5) are abutted against the bottoms of the I-beams (4). A base (6) is fixedly installed at the bottom of the jacks (5).

6. The formwork erection equipment for bridge and culvert construction according to claim 5, wherein: The bottom of the side formwork (8) extends between the bottom of the support frame (1) and the rollers (3).

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