Adjustment device suitable for gradient box beam formwork

Abstract

The utility model provides an adjustment device suitable for a gradient box girder formwork, including a bracket, a box girder formwork is arranged on the bracket, side adjustment mechanisms are arranged on both sides of the box girder formwork, a jacking adjustment mechanism is arranged inside the box girder formwork, wing plate support devices are arranged on both sides of the jacking adjustment mechanism, and a plurality of connection devices are arranged inside the box girder formwork. The arc support plate has openings with the bottom support plate and the top support plate respectively, and the openings are hinged connections between the arc support plate and the bottom support plate and the top support plate respectively, and the openings are in the form of external wedges to ensure that the template surface is smooth when rotating. The overall device can meet the needs of bridges at different locations that require box girders with different slopes, avoiding the phenomenon that the traditional fixed formwork is difficult to demould due to deformation in the later stage after being fixed and tightened by a pull rod; at the same time, it avoids the phenomenon of reinstalling a new formwork, which is time-consuming and labor-intensive, and wastes a lot of construction time and labor costs, and has great promotion value.

Description

Technical Field

[0001] The utility model relates to the field of box beam construction, in particular to an adjustment device suitable for a gradual box beam template. Background Art

[0002] A movable bridge-building machine is a kind of equipment that comes with its own formwork and can use piers as supports to cast-in-place bridges. During cast-in-place construction, workers usually need to tie steel bars in the outer formwork system. However, the slope of the box girder cast by the existing fixed formwork shape formwork is fixed. Bridges in different locations require box girders with different slopes. The traditional box girder is fixed and tightened by a prefabricated steel formwork fixed formwork through tie rods. It cannot flexibly adapt to the gradual deformation requirements of the box girder and the grouting mold pressure stress requirements. As the concrete expands, the steel formwork fixed tie rods are deformed and difficult to demold; or a new formwork can be reinstalled, but reinstalling a new formwork is time-consuming and labor-intensive, wasting a lot of construction time and labor costs. In order to adapt to all common problems of gradual deformation box girders, we propose an adjustment device suitable for gradual box girder formwork to solve the above problems.

[0003] Chinese patent document CN112112075A records a self-propelled cast-in-place box girder integrated bridge-building machine. The problem with these devices is that since the legs of the bridge-building machine are supported on the side walls of the box girder, the width between the legs is smaller than the width of the steel bar parts, making it difficult to transport the steel bar parts to the template. If the steel bar parts need to be disassembled and transported to the template for splicing, the advantages of the overall processing of the steel bar parts cannot be demonstrated, and the overall quality of the final steel bar parts is difficult to guarantee. There are defects in use and improvements are needed. Utility Model Content

[0004] The utility model provides an adjustment device suitable for a gradual box girder formwork, which solves the problem that the slope of the box girder cast by the existing fixed formwork shape formwork is fixed, bridges at different locations require box girders with different slopes, and it is impossible to flexibly adapt to the requirements of gradual deformation of the box girder. At the same time, the slope change of the fixed formwork is fixed and tightened by a tie rod, and the fixing tie rod of the steel formwork is difficult to demould due to deformation in the later concrete expansion.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an adjustment device suitable for a gradient box girder formwork, comprising a bracket, a box girder formwork is arranged on the bracket, side adjustment mechanisms are arranged on both sides of the box girder formwork, a jacking adjustment mechanism is arranged inside the box girder formwork, wing plate support devices are arranged on both sides of the jacking adjustment mechanism, and multiple connecting devices are arranged inside the box girder formwork.

[0006] In the preferred solution, the box girder formwork includes an outer formwork and an inner formwork, two wing plate supporting devices rest against the inner formwork of the box girder formwork, and two side adjustment mechanisms rest against the outer formwork of the box girder formwork. The outer formwork includes an outer bottom plate, two outer wing plates, two outer wing plates, two outer support plates and an outer top plate at the top.

[0007] In the preferred solution, the inner formwork of the box beam formwork includes an inner bottom plate, two inner wing plates and an inner top plate, the outer bottom plate is mounted on a bracket, the inner bottom plate is connected to the bracket via connecting bolts, and the two outer support plates are connected to the side adjustment mechanism via a connecting seat.

[0008] In a preferred solution, the outer bottom plate is rotatably connected to the two outer wing plates, the inner bottom plate is rotatably connected to the two inner wing plates, the outer wing plate is rotatably connected to the outer wing plate, and the inner top plate is rotatably connected to the inner wing plate.

[0009] In the preferred solution, the side adjustment mechanism includes a support frame, an outer wing support plate is provided on one side of the support frame, the outer wing support plate rests on the outer wing plate, the support frame is installed on the bracket, a cross-wing support plate is provided on the top of the support frame, the cross-wing support plate rests on the outer wing plate, and a first hydraulic cylinder and a second hydraulic cylinder are provided between the cross-wing support plate and the support frame.

[0010] In a preferred solution, the lifting and adjusting mechanism includes a base, which is connected to the bracket by a plurality of connecting bolts. A top platform is provided on the base, which abuts against the inner top plate. A third hydraulic cylinder and a fourth hydraulic cylinder are provided between the top platform and the base.

[0011] In the preferred solution, the wing plate supporting device includes an arc-shaped support plate, a bottom support plate and two fifth hydraulic cylinders. The bottom support plate abuts against the inner bottom plate, the arc-shaped support plate abuts against the inner wing plate, and the arc-shaped support plate is rotatably connected to the top support plate and the bottom support plate through the openings.

[0012] In a preferred solution, a fifth hydraulic cylinder is installed between the arc support plate and the top support plate of the wing support device on one side, and another fifth hydraulic cylinder is installed between the arc support plate and the bottom support plate of the wing support device on the other side.

[0013] In the preferred solution, a plurality of threaded holes are provided on the box beam template, and a connecting device is provided at the rotating connection of the box beam template. The connecting device comprises nylon, and a plurality of mounting bolts are provided on the nylon, and the mounting bolts are connected to the threaded holes.

[0014] The beneficial effect of the utility model is that when it is necessary to adjust the outer mold slope of the prefabricated rear box beam, the side adjustment mechanisms on both sides are driven to make the first hydraulic cylinder and the second hydraulic cylinder of the two side adjustment mechanisms extend to different slopes, and the four hydraulic cylinders of the two side adjustment mechanisms extend to different amounts, so that the outer top plate forms a certain slope.

[0015] When the outer wing plates on both sides need to form a certain slope, the installation position of the side adjustment mechanism is moved, and the distance between the side adjustment mechanism and the outer bottom plate is adjusted to adjust the angle between the outer wing plates and the outer bottom plate to adjust the slope of the outer wing plates.

[0016] When the inner top plate needs to be adjusted to a certain slope, the third and fourth hydraulic cylinders on the jacking adjustment mechanism are driven to make the third and fourth hydraulic cylinders extend differently, and the fifth hydraulic cylinders of the two wing support devices are driven at the same time to make the inner top plate form a certain slope. The overall box beam template can adjust a certain slope, and the slope is adjusted by the side adjustment mechanism, jacking adjustment mechanism and wing support device. The gradient cross slope size of the 0%-2% gradient deformed box beam is 0cm-32.6cm gradient.

[0017] The arc support plate has openings with the bottom support plate and the top support plate respectively, and the openings are hinged connections between the arc support plate and the bottom support plate and the top support plate respectively, and the openings are in the form of external wedges to ensure that the template surface rotates smoothly. The overall device can meet the needs of box girders with different slopes for bridges at different locations, avoiding the phenomenon that the traditional fixed template is difficult to demould due to deformation in the later stage after being fixed and tightened by a tie rod; at the same time, it avoids the phenomenon of reinstalling a new template, which is time-consuming and labor-intensive, and wastes a lot of construction time and labor costs, and has great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0019] Figure 1 It is a front view schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a front view schematic diagram of the wing plate supporting device of the utility model;

[0021] Figure 3 It is a front view schematic diagram of the jacking adjustment mechanism of the utility model;

[0022] Figure 4 It is a front view schematic diagram of the side adjustment mechanism of the utility model;

[0023] Figure 5 It is a front view of the box beam template of the utility model;

[0024] Figure 6 It is an axonometric view of a local structure of the utility model;

[0025] Figure 7 It is an exploded view of the local structure of the utility model;

[0026] Figure 8 It is an exploded view of the local structure of the utility model;

[0027] In the figure: box girder formwork 1; outer bottom plate 101; threaded hole 1011; outer wing plate 102; outer wing plate 103; outer support plate 104; outer top plate 105; inner bottom plate 106; inner wing plate 107; inner top plate 108; rotating seat 109; bracket 2; side adjustment mechanism 3; support frame 301; first hydraulic cylinder 302; second hydraulic cylinder 303; outer wing support plate 304; transverse wing support plate 305; connecting seat 306; jacking adjustment mechanism 4; base 401; connecting bolt 402; third hydraulic cylinder 403; fourth hydraulic cylinder 404; top platform 405; top support plate 406; wing plate support device 5; arc support plate 501; second arc support plate 502; inclined plate 503; fifth hydraulic cylinder 504; connecting device 6; nylon 601; bolt 602; through hole 603. DETAILED DESCRIPTION

[0028] Embodiment 1:

[0029] like Figure 1-8 In the invention, an adjustment device for a gradual box beam template is provided, comprising a bracket 2, a box beam template 1 is provided on the bracket 2, side adjustment mechanisms 3 are provided on both sides of the box beam template 1, a jacking adjustment mechanism 4 is provided inside the box beam template 1, wing plate support devices 5 are provided on both sides of the jacking adjustment mechanism 4, and a plurality of connection devices 6 are provided inside the box beam template 1. According to this structure, the outer bottom plate 101 and the inner bottom plate 106 of the box beam template 1 are installed on the bracket 2, the two outer support plates 104 are installed on the connection seat 306, and the two outer wing plates 103 are connected to the outer support plates 104. When it is necessary to adjust the outer mold slope of the prefabricated box beam, the side adjustment mechanisms 3 on both sides are driven to make the first hydraulic cylinder 302 and the second hydraulic cylinder 303 of the two side adjustment mechanisms 3 extend to different slopes, and the four hydraulic cylinders of the two side adjustment mechanisms 3 extend in different amounts, so that the outer top plate 105 forms a certain slope.

[0030] When the outer wing panels 102 on both sides need to form a certain slope, the installation position of the side adjustment mechanism 3 is moved, and the distance between the side adjustment mechanism 3 and the outer bottom plate 101 is adjusted to adjust the angle between the outer wing panels 102 and the outer bottom plate 101 to adjust the slope of the outer wing panels 102.

[0031] When the inner top plate 108 needs to be adjusted to a certain slope, the third hydraulic cylinder 403 and the fourth hydraulic cylinder 404 on the jacking adjustment mechanism 4 are driven to make the third hydraulic cylinder 403 and the fourth hydraulic cylinder 404 extend differently, and the fifth hydraulic cylinder 504 of the two wing plate support devices 5 are driven at the same time to make the inner top plate 108 form a certain slope. The overall box beam template 1 can adjust a certain slope, and the slope is adjusted by the side adjustment mechanism 3, the jacking adjustment mechanism 4 and the wing plate support device 5. The 0%-2% gradient deformed box beam is satisfied, and the gradient cross slope size is 0cm-32.6cm gradient.

[0032] The arc support plate 501 has openings 503 with the bottom support plate 502 and the top support plate 406 respectively. The openings 503 are hinged connections between the arc support plate 501 and the bottom support plate 502 and the top support plate 406 respectively. The openings 503 are in the form of external wedges to ensure that the template surface is smooth when rotating. The overall device can meet the needs of box beams with different slopes for bridges at different locations, avoiding the phenomenon that the traditional fixed template is difficult to demould due to deformation in the later stage after being fixed and tightened by a tie rod; at the same time, it avoids the phenomenon of reinstalling a new template, which is time-consuming and labor-intensive, and wastes a lot of construction time and labor costs.

[0033] In the preferred solution, the box beam template 1 includes an outer template and an inner template, two wing plate support devices 5 are against the inner template of the box beam template 1, and two side adjustment mechanisms 3 are against the outer template of the box beam template 1. The outer template includes an outer bottom plate 101, two outer wing plates 102, two outer wing plates 103, two outer support plates 104 and an outer top plate 105 at the top. With this structure,

[0034] In the preferred solution, the inner formwork of the box girder formwork 1 includes an inner bottom plate 106, two inner wing plates 107 and an inner top plate 108, the outer bottom plate 101 is mounted on the bracket 2, the inner bottom plate 106 is connected to the bracket 2 via connecting bolts 402, and the two outer support plates 104 are connected to the side adjustment mechanism 3 via a connecting seat 306.

[0035] In the preferred solution, the outer bottom plate 101 is rotatably connected to the two outer wing plates 102, the inner bottom plate 106 is rotatably connected to the two inner wing plates 107, the outer wing plates 102 are rotatably connected to the outer wing plates 103, and the inner top plate 108 is rotatably connected to the inner wing plates 107. With this structure, the outer bottom plate 101 and the inner bottom plate 106 of the box beam template 1 are installed on the bracket 2, the two outer support plates 104 are installed on the connecting seat 306, and the two outer wing plates 103 are connected to the outer support plates 104. When it is necessary to adjust the slope of the outer mold of the prefabricated box beam, the side adjustment mechanisms 3 on both sides are driven to extend the first hydraulic cylinder 302 and the second hydraulic cylinder 303 of the two side adjustment mechanisms 3 to different slopes, and the four hydraulic cylinders of the two side adjustment mechanisms 3 extend in different amounts, so that the outer top plate 105 forms a certain slope.

[0036] In the preferred solution, the side adjustment mechanism 3 includes a support frame 301, an outer wing support plate 304 is provided on one side of the support frame 301, the outer wing support plate 304 abuts against the outer wing plate 102, the support frame 301 is installed on the bracket 2, a cross-wing support plate 305 is provided on the top of the support frame 301, the cross-wing support plate 305 abuts against the outer wing plate 103, and a first hydraulic cylinder 302 and a second hydraulic cylinder 303 are provided between the cross-wing support plate 305 and the support frame 301. With this structure, when the outer wing plates 102 on both sides need to form a certain slope, the installation position of the side adjustment mechanism 3 is moved, and the distance between the side adjustment mechanism 3 and the outer bottom plate 101 is adjusted to adjust the angle between the outer wing plates 102 and the outer bottom plate 101, so as to adjust the slope of the outer wing plates 102.

[0037] In the preferred solution, the lifting and adjusting mechanism 4 includes a base 401, which is connected to the bracket 2 through a plurality of connecting bolts 402. A top platform 405 is provided on the base 401, and the top platform 405 is against the inner top plate 108. A third hydraulic cylinder 403 and a fourth hydraulic cylinder 404 are provided between the top platform 405 and the base 401. With this structure, when the inner top plate 108 needs to adjust a certain slope, the third hydraulic cylinder 403 and the fourth hydraulic cylinder 404 on the lifting and adjusting mechanism 4 are driven so that the third hydraulic cylinder 403 and the fourth hydraulic cylinder 404 have different elongations, and the fifth hydraulic cylinder 504 of the two wing plate support devices 5 are driven at the same time so that the inner top plate 108 forms a certain slope. The overall box beam template 1 can adjust a certain slope, and the slope is adjusted by the side adjustment mechanism 3, the lifting and adjusting mechanism 4 and the wing plate support device 5. The 0%-2% gradient deformed box beam is satisfied, and the gradient cross slope size is 0cm-32.6cm gradient.

[0038] In the preferred embodiment, the wing plate supporting device 5 includes an arc-shaped support plate 501, a bottom support plate 502 and two fifth hydraulic cylinders 504. The bottom support plate 502 rests on the inner bottom plate 106, and the arc-shaped support plate 501 rests on the inner wing plate 107. The arc-shaped support plate 501 is rotatably connected to the top support plate 406 and the bottom support plate 502 through the opening 503 respectively.

[0039] In the preferred solution, a fifth hydraulic cylinder 504 is installed between the arc support plate 501 and the top support plate 406 of the wing support device 5 on one side, and another fifth hydraulic cylinder 504 is installed between the arc support plate 501 and the bottom support plate 502 of the wing support device 5 on the other side. With this structure, the arc support plate 501 has an opening 503 with the bottom support plate 502 and the top support plate 406 respectively, and the opening 503 is a hinged connection between the arc support plate 501 and the bottom support plate 502 and the top support plate 406 respectively. The opening 503 is in the form of an outer wedge to ensure that the template surface is smooth when rotating. The overall device can be used for box girders with different slopes required for bridges at different locations, avoiding the phenomenon that the traditional fixed template is difficult to demould due to deformation in the later stage after being fixed and tightened by a pull rod; at the same time, it avoids the phenomenon of reinstalling a new template, which is time-consuming and labor-intensive, and wastes a lot of construction time and labor costs.

[0040] In the preferred solution, a plurality of threaded holes 1011 are provided on the box beam template 1, and a connecting device 6 is provided at the rotating connection of the box beam template 1, and the connecting device 6 includes nylon 601, and a plurality of mounting bolts 602 are provided on the nylon 601, and the mounting bolts 602 are connected to the threaded holes 1011. With this structure, when the template of the box beam template 1 rotates, the nylon 601 can be extended and retracted, and the nylon 601 can be against the template of the box beam template 1, and when grouting, the slurry can make the nylon 601 fit on the template to avoid slurry leakage.

[0041] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An adjustment device suitable for a gradient box beam formwork, characterized by: The invention comprises a support (2), a box beam template (1) is provided on the support (2), side adjustment mechanisms (3) are provided on both sides of the box beam template (1), a jacking adjustment mechanism (4) is provided inside the box beam template (1), wing plate support devices (5) are provided on both sides of the jacking adjustment mechanism (4), and a plurality of connection devices (6) are provided inside the box beam template (1).

2. The adjusting device for the gradual box beam formwork according to claim 1 is characterized in that: The box beam template (1) comprises an outer template and an inner template, two wing plate support devices (5) abut against the inner template of the box beam template (1), two side adjustment mechanisms (3) abut against the outer template of the box beam template (1), and the outer template comprises an outer bottom plate (101), two outer wing plates (102), two outer side wing plates (103), two outer support plates (104) and an outer top plate (105) at the top.

3. The adjusting device for the gradual box beam formwork according to claim 2 is characterized in that: The inner formwork of the box beam formwork (1) comprises an inner bottom plate (106), two inner wing plates (107) and an inner top plate (108); the outer bottom plate (101) is mounted on a bracket (2); the inner bottom plate (106) is connected to the bracket (2) via connecting bolts (402); and the two outer support plates (104) are connected to the side adjustment mechanism (3) via a connecting seat (306).

4. The adjusting device for the gradual box beam formwork according to claim 3 is characterized in that: The outer bottom plate (101) is rotatably connected to the two outer wing plates (102), the inner bottom plate (106) is rotatably connected to the two inner wing plates (107), the outer wing plate (102) is rotatably connected to the outer wing plate (103), and the inner top plate (108) is rotatably connected to the inner wing plate (107).

5. The adjusting device for the gradual box beam formwork according to claim 1 is characterized in that: The side adjustment mechanism (3) comprises a support frame (301), an outer wing support plate (304) is provided on one side of the support frame (301), the outer wing support plate (304) abuts against the outer wing plate (102), the support frame (301) is mounted on the bracket (2), a cross-wing support plate (305) is provided on the top of the support frame (301), the cross-wing support plate (305) abuts against the outer wing plate (103), and a first hydraulic cylinder (302) and a second hydraulic cylinder (303) are provided between the cross-wing support plate (305) and the support frame (301).

6. The adjusting device for the gradual box beam formwork according to claim 1 is characterized in that: The lifting and adjusting mechanism (4) comprises a base (401), the base (401) being connected to the bracket (2) via a plurality of connecting bolts (402), a top platform (405) being provided on the base (401), the top platform (405) being against the inner top plate (108), and a third hydraulic cylinder (403) and a fourth hydraulic cylinder (404) being provided between the top platform (405) and the base (401).

7. The adjusting device for the gradual box beam formwork according to claim 1 is characterized in that: The wing plate support device (5) comprises an arc-shaped support plate (501), a bottom support plate (502) and two fifth hydraulic cylinders (504); the bottom support plate (502) abuts against the inner bottom plate (106); the arc-shaped support plate (501) abuts against the inner wing plate (107); and the arc-shaped support plate (501) is rotatably connected to the top support plate (406) and the bottom support plate (502) respectively through the opening (503).

8. The adjusting device for the gradual box beam formwork according to claim 7 is characterized in that: A fifth hydraulic cylinder (504) is installed between the arc-shaped support plate (501) and the top support plate (406) of the wing plate support device (5) on one side, and another fifth hydraulic cylinder (504) is installed between the arc-shaped support plate (501) and the bottom support plate (502) of the wing plate support device (5) on the other side.

9. The adjusting device for the gradual box beam formwork according to claim 1 is characterized in that: A plurality of threaded holes (1011) are provided on the box beam template (1), and a connecting device (6) is provided at a rotating connection of the box beam template (1). The connecting device (6) comprises nylon (601), and a plurality of mounting bolts (602) are provided on the nylon (601). The mounting bolts (602) are connected to the threaded holes (1011).

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