阅读说明：本技术 一种可局部移动的仰拱模板及带仰拱模板的栈桥 (But trestle of invert template and area invert template of local removal ) 是由 郑怀臣 毛成宝 张维颂 李佑福 向其兴 于 2020-04-28 设计创作，主要内容包括：本发明公开了一种可局部移动的仰拱模板,包括中间模板以及设于中间模板两侧的侧模板,所述侧模板上设有沿仰拱纵深方向布置的第一纵向轨道,所述中间模板连接有用于驱动中间模板沿第一纵向轨道往复移动的驱动机构。一种栈桥,包括主桥,还包括上述的可局部移动的仰拱模板,所述主桥上设有第二纵向轨道,所述第二纵向轨道上设有移动小车,所述移动小车上设有连接仰拱模板的升降驱动件。本发明具有结构简单、成本低、易于实施、方便施工等优点。(The invention discloses an inverted arch template capable of moving locally, which comprises a middle template and side templates arranged on two sides of the middle template, wherein the side templates are provided with a first longitudinal rail arranged along the depth direction of an inverted arch, and the middle template is connected with a driving mechanism for driving the middle template to move back and forth along the first longitudinal rail. The utility model provides a trestle, includes the main bridge, but still includes foretell invert template of local removal, be equipped with the vertical track of second on the main bridge, be equipped with the travelling car on the vertical track of second, be equipped with the lift driving piece of connecting the invert template on the travelling car. The invention has the advantages of simple structure, low cost, easy implementation, convenient construction and the like.)

1. An inverted arch template capable of moving locally is characterized in that: including middle template (1) and locate side form board (2) of middle template (1) both sides, be equipped with on side form board (2) along first longitudinal rail (3) that the inverted arch depth direction was arranged, middle template (1) is connected with and is used for driving middle template (1) along first longitudinal rail (3) reciprocating motion's actuating mechanism (4).

2. The locally movable inverted arch template of claim 1, wherein: and the middle template (1) is provided with a guide roller (5) matched with the first longitudinal rail (3).

3. The locally movable inverted arch template of claim 1, wherein: the side form (2) is provided with a working window (6), and a vibrating part (61) is arranged at the working window (6).

4. The locally movable inverted arch template of claim 1, wherein: and a support rod (9) for preventing floating is arranged on the side template (2).

5. The locally movable inverted arch template of claim 1, wherein: and a sealing gasket (11) is arranged at the contact position of the middle template (1) and the side template (2).

6. The locally movable inverted arch template according to any one of claims 1 to 5, wherein: drive mechanism (4) include drive sprocket (41), driven sprocket (42) and around locating chain (43) on drive sprocket (41) and driven sprocket (42), be equipped with drive sprocket (12) on middle template (1), drive sprocket (12) with chain (43) are connected.

7. The locally movable inverted arch template according to any one of claims 1 to 5, wherein: the driving mechanism (4) comprises a rack arranged on the first longitudinal rail (3) and a driving gear arranged on the middle template (1), and the driving gear is meshed with the rack.

8. A trestle comprising a main bridge (7), characterized in that: the locally movable inverted arch formwork further comprises any one of claims 1 to 7, wherein a second longitudinal rail (71) is arranged on the main bridge (7), a moving trolley (72) is arranged on the second longitudinal rail (71), and a lifting driving member (73) connected with the inverted arch formwork is arranged on the moving trolley (72).

9. The trestle of claim 8, wherein: the cloth device is characterized by further comprising a cloth part (8), wherein the cloth part (8) moves synchronously with the moving trolley (72).

10. The trestle of claim 9, wherein: the distributing part (8) is arranged on the moving trolley (72), and the distributing part (8) is a chute or a distributing arm.

Technical Field

The invention relates to tunnel construction equipment, in particular to an inverted arch template capable of moving locally and a trestle with the inverted arch template.

Background

In recent years, with the continuous development of tunnel construction technology in China, in order to effectively improve the stability and durability of an inverted arch structure, new knowledge is provided for requirements of inverted arch construction. The template for inverted arch construction is optimized from a simple single small template to a trestle firstly to drive an integral type low-side wall inverted arch template, and then is further optimized to a full inverted arch template of a full inverted arch section template. The tunnel inverted arch layer is constructed with full-width inverted arch template, and template cost increases to some extent, and inverted arch construction space is also compressed further, and when pouring construction, the inverted arch layer can't be vibrated comprehensively in the below of template. In actual construction application, air bubbles are easily formed on the surface of finally-formed inverted arch concrete, primary pulp plastering and timely secondary cleaning cannot be carried out on the surface of the inverted arch layer due to the existence of the full-width inverted arch template, and certain safety risks are accompanied when the appearance of the inverted arch layer is influenced by the air bubbles.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the locally movable inverted arch template which is simple in structure, low in cost and convenient to construct.

The invention further provides a trestle comprising the locally movable inverted arch formwork.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides an invert template that can local removal, includes middle template and locates the side form board of middle template both sides, be equipped with the first vertical track of arranging along the invert depth direction on the side form board, middle template is connected with and is used for driving middle template along the actuating mechanism of first vertical track reciprocating motion.

As a further improvement of the above technical solution: and the middle template is provided with a guide roller matched with the first longitudinal rail.

As a further improvement of the above technical solution: the side form is provided with a working window, and a vibrating part is arranged at the working window.

As a further improvement of the above technical solution: and the side templates are provided with support rods for preventing floating.

As a further improvement of the above technical solution: and a sealing gasket is arranged at the contact part of the middle template and the side template.

As a further improvement of the above technical solution: the driving mechanism comprises a driving chain wheel, a driven chain wheel and a chain wound on the driving chain wheel and the driven chain wheel, a transmission chain wheel is arranged on the middle template, and the transmission chain wheel is connected with the chain.

As a further improvement of the above technical solution: the driving mechanism comprises a rack arranged on the first longitudinal rail and a driving gear arranged on the middle template, and the driving gear is meshed with the rack.

The utility model provides a trestle, includes the main bridge, but still includes foretell invert template of local removal, be equipped with the vertical track of second on the main bridge, be equipped with the travelling car on the vertical track of second, be equipped with the lift driving piece of connecting the invert template on the travelling car.

As a further improvement of the above technical solution: the cloth device also comprises a cloth component which moves synchronously with the moving trolley.

As a further improvement of the above technical solution: the distributing part is arranged on the moving trolley and is a chute or a distributing arm.

Compared with the prior art, the invention has the advantages that: the inverted arch formwork disclosed by the invention is divided into two side formworks and an intermediate formwork positioned between the two side formworks, wherein the side formworks are provided with a first longitudinal rail, the intermediate formwork can realize reciprocating movement along the first longitudinal rail through a driving mechanism, the intermediate formwork can move to leave a space when concrete at the lower layer of an inverted arch is poured, the construction is more convenient and convenient, the concrete can be vibrated and compacted in time, the construction quality is improved, after the concrete at the intermediate layer is poured, the intermediate formwork moves again, the accumulated concrete is leveled and formed, the construction of an inverted arch cambered surface is completed, the construction is very convenient and rapid, and compared with the full-width inverted arch movement, only the intermediate formwork is moved, the inverted arch construction quality is ensured, the implementation is easier, and the cost is lower.

The trestle disclosed by the invention comprises the inverted arch template, so that the trestle also has the advantages, the main bridge is provided with the second longitudinal rail, the second longitudinal rail is provided with the moving trolley, the moving trolley is provided with the lifting driving piece connected with the inverted arch template, after the inverted arch template completes the construction of the current construction interval, the lifting driving piece drives the inverted arch template to ascend, and then the moving trolley drives the inverted arch template to move to the next construction interval along the second longitudinal rail, so that the cycle is repeated, the structure is simple and reliable, and the construction efficiency is improved.

Drawings

Fig. 1 is a schematic front view of the partially movable inverted arch form and the trestle according to the present invention.

Fig. 2 is a schematic side view of the partially movable inverted arch form and the trestle according to the present invention.

Fig. 3 is a schematic top view of the partially movable inverted arch form and the trestle of the present invention.

Fig. 4 is a schematic flow chart of inverted arch construction using the present invention.

Fig. 5 is a schematic structural diagram of a trestle according to the present invention.

Fig. 6 is a schematic structural view of another embodiment of the drive mechanism in the present invention.

The reference numerals in the figures denote: 1. an intermediate template; 11. a gasket; 12. a drive sprocket; 2. a sideform; 3. a first longitudinal rail; 4. a drive mechanism; 41. a drive sprocket; 42. a driven sprocket; 43. a chain; 44. an oil cylinder; 5. a guide roller; 6. a working window; 61. a vibrating member; 7. a main bridge; 71. a second longitudinal rail; 72. moving the trolley; 73. a lifting drive member; 74. a front approach bridge; 75. a rear approach bridge; 8. a cloth member; 9. a support rod.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples of the specification.

Fig. 1 to 4 show an embodiment of the partially movable inverted arch form of the present invention, the partially movable inverted arch form of the present embodiment includes an intermediate form 1 and side forms 2 disposed on both sides of the intermediate form 1, the side forms 2 are provided with first longitudinal rails 3 disposed along a depth direction of the inverted arch, and the intermediate form 1 is connected with a driving mechanism 4 for driving the intermediate form 1 to reciprocate along the first longitudinal rails 3 (i.e., the first longitudinal rails 3 are disposed along a depth direction of the tunnel in practical use).

This inverted arch template, divide into two side form 2 and be located two middle template 1 between side form 2, set up first longitudinal rail 3 on the side form 2, 1 accessible actuating mechanism 4 of middle template realizes along the reciprocating motion of first longitudinal rail 3, when pouring inverted arch lower concrete, middle template 1 can remove and give way the space, the construction is more convenient and can in time vibrate the concrete closely knit, improve construction quality, pour after the middle floor concrete, middle template 1 secondary movement, to be floating accumulational concrete, the shaping, concrete can be poured to 2 below both sides template simultaneously, it is very convenient to be under construction, and fast, and compare full width inverted arch and remove, only remove middle template 1, when guaranteeing inverted arch construction quality, implement more easily, the cost is lower.

Further, in this embodiment, the middle formwork 1 is provided with a guide roller 5 engaged with the first longitudinal rail 3. As a preferable technical scheme, for example, the first longitudinal rail 3 is an i-steel rail, the guide roller 5 is a T-shaped structure, and the two sides of the middle formwork 1 are matched with the first longitudinal rail 3 and the guide roller 5, so that the middle formwork 1 can move more stably and smoothly.

Further, in the present embodiment, the side mold plate 2 is provided with a working window 6, and the vibrating member 61 is disposed at the working window 6. Since the sideforms 2 do not move, the concrete under the sideforms 2 can be vibrated through the working window 6.

Further, in the present embodiment, the sideform 2 is provided with a support bar 9 for preventing floating. Prevent the inverted arch template come-up through bracing piece 9, guarantee inverted arch construction quality.

Further, in the present embodiment, a gasket 11 is disposed at a contact portion between the middle mold plate 1 and the side mold plate 2. The gap between the side formwork 2 and the middle formwork 1 is filled through the sealing gasket 11, and concrete slurry is prevented from overflowing.

Further, in the present embodiment, the driving mechanism 4 includes a driving sprocket 41, a driven sprocket 42, and a chain 43 wound around the driving sprocket 41 and the driven sprocket 42, the middle mold plate 1 is provided with a driving sprocket 12, and the driving sprocket 12 is connected to the chain 43. During operation, the driving sprocket 41 rotates, the driving sprocket 41 drives the chain 43 to move, the chain 43 drives the intermediate formwork 1 to move through the transmission sprocket 12, and along with the change of the rotation direction of the driving sprocket 41, the moving direction of the intermediate formwork 1 also changes, so that the structure is simple and reliable, and the intermediate formwork is not easy to slip.

Of course, in other embodiments, the driving mechanism 4 may be: comprises a rack arranged on the first longitudinal rail 3 and a driving gear (the rack and the driving gear are not shown in the figure) arranged on the middle template 1, and the driving gear is meshed with the rack. During operation, the driving gear rotates to drive the middle template 1 to move along the first longitudinal rail 3, and along with the difference of the rotating directions of the driving gear, the moving direction of the middle template 1 also changes, so that the structure is simple and reliable, and the middle template is not easy to slip. Alternatively, as shown in fig. 6, the driving mechanism 4 may also use the oil cylinder 44 to push the intermediate mold plate 1 to move step by step.

Fig. 1 to 5 show an embodiment of a trestle according to the present invention, which includes a main bridge 7, and further includes the above-mentioned locally movable inverted arch form, a second longitudinal rail 71 is provided on the main bridge 7 (i.e. the second longitudinal rail 71 is arranged along the depth direction of the tunnel in practical application), a moving trolley 72 is provided on the second longitudinal rail 71, and a lifting driving member 73 connected to the inverted arch form is provided on the moving trolley 72. The lifting drive 73 is preferably connected to the two side formworks 2, but may be connected to the middle formwork 1 in other embodiments; the lifting drive 73 may be, for example, a hydraulic cylinder, a hoisting member, a screw nut pair, or the like, and may be lifted.

The trestle comprises the inverted arch formwork, so that the trestle also has the advantages, the main bridge 7 is provided with the second longitudinal rail 71, the second longitudinal rail 71 is provided with the movable trolley 72, the movable trolley 72 is provided with the lifting driving piece 73 connected with the inverted arch formwork, after the inverted arch formwork completes construction in the current construction interval, the lifting driving piece 73 drives the inverted arch formwork to ascend, then the movable trolley 72 drives the inverted arch formwork to move to the next construction interval along the second longitudinal rail 71, the cycle is carried out, the structure is simple and reliable, and the construction efficiency is improved.

Further, in the present embodiment, the movable cart 72 is provided with the cloth member 8. The distributing member 8 may be, for example, a chute or a distributing arm. After the concrete tank truck travels to the trestle, the concrete is conveyed to the lower part of the inverted arch template through the distributing part 8, and the construction convenience and the construction efficiency are improved. Of course, in other embodiments, the cloth member 8 may move independently of itself, and may be kept in synchronization with the carriage 72.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.