Formwork erecting device for cement concrete trapezoid open trench formwork

Abstract

The utility model discloses a cement concrete trapezoid open trench formwork erecting device which comprises a plurality of formwork erecting units matched with one another. Each formwork supporting unit comprises formwork supporting formworks symmetrically arranged on the two sides, and the formwork supporting formworks are obliquely arranged; a plurality of hinge seats are hinged between the lower ends of the formwork supporting templates, and lower telescopic rods are fixedly connected between the hinge seats; a plurality of angle adjusting and locking structures are fixedly connected to the top of the formwork; through the angle adjusting and locking structure, the formwork is locked after the angle of the formwork is adjusted; an upper telescopic rod is fixedly connected between the angle adjusting and locking structures on the two sides, and the bottom of the upper telescopic rod is fixedly connected with a formwork expansion preventing mechanism supported on the formwork erecting formworks on the two sides. According to the device, formwork erecting is achieved, the angle and the distance of the formworks are adjusted according to the shape of a ditch, formwork expansion is prevented after formwork erecting, the integrated structural design is adopted, formwork erecting is greatly simplified, the construction steps are greatly simplified through formwork dismounting and secondary supporting, and the formwork erecting efficiency is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of concrete trapezoidal open ditch construction technology, and in particular relates to a formwork support device for cement concrete trapezoidal open ditch. Background Technology

[0002] A trapezoidal open ditch is a ditch with a trapezoidal longitudinal cross-section. Because of its trapezoidal structural design, trapezoidal open ditches not only have higher drainage efficiency but also effectively support the slopes on both sides of the ditch, preventing the technical defects of soil peeling off the slopes that could lead to ditch blockage and siltation.

[0003] During the construction of trapezoidal open ditches, a trapezoidal ditch is often excavated in advance. Then, concrete is poured on the landslide slopes on both sides of the ditch to form concrete slope protection. Before pouring, plywood is placed on the landslide slopes on both sides of the ditch to form the concrete slopes.

[0004] Therefore, during construction, it is necessary to support the wooden formwork, and to reinforce the wooden formwork on both sides with a large number of support structures to prevent bulging of the formwork during the pouring process. Obviously, the above formwork support method is not only very inefficient and has too many support installation structures, but also often involves pouring and removing the formwork after pouring, and then pouring and removing the formwork again at the next section of the ditch to deal with relatively long ditches.

[0005] The complex formwork structure makes installation and dismantling of the formwork extremely complicated. Therefore, existing formwork systems, with their numerous support structures, result in overly complex construction procedures and very low construction efficiency. This is especially true for long ditches requiring multiple staged pours, where frequent formwork erection and dismantling lead to a massive workload.

[0006] Furthermore, once the shape of the ditch changes, such as to different ditch sections, the formwork needs to be re-erected after demolding, and the support structure needs to be re-installed between the formwork according to the shape of the ditch, which further complicates the work. Utility Model Content

[0007] Based on the above background, the purpose of this utility model is to provide a formwork support device for a trapezoidal open ditch in cement concrete.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A formwork support device for a trapezoidal open ditch made of cement concrete includes several formwork support units that cooperate with each other.

[0010] Each template support unit includes support templates symmetrically arranged on both sides, and the support templates are inclined; several hinge seats are hinged between the lower ends of the support templates, and a lower telescopic rod is fixedly connected between the hinge seats;

[0011] The top of the formwork template is fixedly connected to several angle adjustment and locking structures; the formwork template is locked after the angle is adjusted by the angle adjustment and locking structures.

[0012] An upper telescopic rod is fixedly connected between the two side angle adjustment and locking structures, and an anti-bulging mold mechanism supported on the two side mold templates is fixedly connected to the bottom of the upper telescopic rod.

[0013] Preferably, the angle adjustment and locking structure includes a vertical slide rod fixedly connected to the top of the formwork template, the vertical slide rod being slidably connected to a horizontal fixed rod, and the two ends of the upper telescopic rod being fixedly connected to the horizontal fixed rod.

[0014] Preferably, the horizontal fixed rod has a long sliding opening that cooperates with the vertical slide rod; a transverse screw is fixedly connected inside the long sliding opening, and an adjusting sliding opening that is slidably connected to the transverse screw is provided on the vertical slide rod; a pair of nuts that are locked and positioned on both sides of the vertical slide rod are threaded onto the transverse screw.

[0015] Preferably, the upper telescopic rod includes an upper central sleeve, and upper sliding rods are slidably connected to both ends of the upper central sleeve.

[0016] The top two ends of the upper central sleeve are respectively threaded with upper bolts for locking the upper slide rod;

[0017] The upper sliding rod is fixedly connected to the horizontal fixed rod;

[0018] The anti-bulging mold mechanism is fixedly connected to the bottom of the central sleeve.

[0019] Preferably, the anti-bulging mold mechanism includes an upper hinge seat, which is fixedly connected to the central sleeve by a fixing rod;

[0020] The lower end of the upper hinge seat is provided with a hinge interface, and inclined support top plates symmetrically arranged on both sides are hinged in the hinge interface.

[0021] Preferably, the upper end of the inclined support top plate is fixedly connected with a hinge fixing screw that is hinged to the upper hinge seat;

[0022] Both ends of the hinge fixing screw are respectively threaded with positioning nuts that are pressed and locked onto the upper hinge seat.

[0023] Preferably, the lower end of the inclined support plate is threaded with an extension adjusting screw, and the end of the extension adjusting screw is fixedly connected with a support.

[0024] Preferably, a grid-like reinforcing rib structure is fixedly connected to the inner side wall of the formwork template;

[0025] The hinge seat is hinged to the grid-like reinforcing rib structure;

[0026] The lower telescopic rod includes a lower central sleeve, and two ends of the lower central sleeve are respectively slidably connected to a lower sliding rod, which is fixedly connected to the hinge seat.

[0027] The top two ends of the lower center sleeve are respectively threaded with lower bolts for locking the sliding rod.

[0028] Preferably, the outer ends of the horizontal fixing rods are respectively fixedly connected to mounting plates.

[0029] This utility model has the following beneficial effects:

[0030] 1. It enables the adjustment of the spacing and angle of the formwork templates, allowing for quick adjustment of the template spacing and angle during the formwork erection process, while also simplifying demolding.

[0031] Meanwhile, because the angle and spacing can be flexibly adjusted, the construction process can be adapted to different ditch sections and different shapes, thus enabling the formwork and pouring of ditches with constantly changing shapes to be done using a single-structure template.

[0032] 2. During construction, after the formwork is erected, the operator loosens the positioning nut and then flips the inclined support plate so that it supports the formwork template, such as supporting it on the reinforcing rib. In this way, with the cooperation of multiple anti-bulging mechanisms, the template is fully supported, thereby effectively avoiding the defect of template bulging during pouring.

[0033] 3. The device disclosed in this utility model realizes formwork support, adjusts the angle and spacing of the template according to the shape of the ditch, and prevents the formwork from expanding after formwork support. It adopts an integrated structure design, which not only greatly simplifies formwork support, but also greatly simplifies the construction steps of dismantling and re-supporting the formwork, effectively improving the formwork support efficiency. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the template support unit in an embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of the angle adjustment and locking structure in an embodiment of the present invention;

[0037] Figure 3 This is a schematic diagram of the anti-bulging mold mechanism in an embodiment of this utility model;

[0038] Figure 4 This is a schematic diagram of the structure of the lower end threaded connection extension adjustment screw of the inclined support top plate in this embodiment of the present invention;

[0039] Figure 5 This is an embodiment of the present utility model. Figure 1 A structural diagram from another perspective.

[0040] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0043] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0044] Example 1

[0045] like Figure 1-5 As shown, a cement concrete trapezoidal open ditch formwork support device includes several mutually cooperating formwork support units; during the formwork support process, a certain length of formwork support is achieved through several mutually cooperating formwork support units.

[0046] The specific structure of each template support unit is as follows:

[0047] The formwork support unit includes formwork templates 1 symmetrically arranged on the left and right sides, the formwork templates 1 being inclined (to match the slope of the trapezoidal open ditch); several U-shaped hinge seats 2, spaced apart front and back, are hinged between the lower ends of the formwork templates 1. Specifically, a grid-like reinforcing rib structure 11 (composed of alternating longitudinal and transverse ribs) is fixedly connected to the inner wall of the formwork template 1; the hinge seats 2 are hinged to the lower ends of the longitudinal ribs on the grid-like reinforcing rib structure 11 by means of fixed pins.

[0048] A lower telescopic rod 3 is fixedly connected between the hinge seats 2. Specifically, the lower telescopic rod 3 includes a lower central sleeve, with sliding lower rods slidably connected to both ends of the lower central sleeve. The sliding lower rods are fixedly connected to the hinge seats 2. The top two ends of the lower central sleeve are threaded with lower bolts for locking the sliding lower rods. Correspondingly, multiple spaced threaded holes are provided on the sliding lower rods. When adjusting the length of the lower telescopic rod 3, the lower bolts are tightened to different threaded holes. The length adjustment of the lower telescopic rod 3 aims to allow the formwork templates on both sides to be adjusted according to the width and spacing of the ditch, synchronously with the adjustment of the upper telescopic rod described below.

[0049] Meanwhile, several angle adjustment and locking structures are fixedly connected to the top of the formwork template 1; the formwork template 1 is locked after the angle is adjusted by the angle adjustment and locking structures.

[0050] Specifically, the angle adjustment locking structure 5 is used to adjust the tilt angle of the formwork template 1 according to the inclination of the ditch slope.

[0051] Specifically, the angle adjustment and locking structure 5 includes a vertical slide rod 53 fixedly connected to the top of the formwork template 1. A horizontal fixed rod 51 is slidably connected to the vertical slide rod 53, and both ends of the upper telescopic rod are fixedly connected to the horizontal fixed rod 51. The horizontal fixed rod 51 has a long sliding opening that mates with the vertical slide rod 53. A transverse screw 52 is fixedly connected inside the long sliding opening. An adjustment sliding opening 531 is provided on the vertical slide rod 53, slidably connecting to the transverse screw 52. A pair of nuts 511, locked and positioned on both sides of the vertical slide rod 53, are threaded onto the transverse screw 52.

[0052] During the process of flipping and adjusting the formwork template 1, the lower end of the formwork template 1 flips relative to the hinge seat. During this process, the vertical slide bar 53 flips in an arc on the long slide opening. Since the vertical slide bar 53 has a vertically set adjustment slide opening 531 (shaped like a strip), the transverse screw 52 flips relative to the adjustment slide opening 531.

[0053] After the angle is adjusted, the nuts 511 on both sides are turned and pressed against the sides of the vertical slide bar 53 to achieve positioning.

[0054] The angle can be adjusted in the above way to match the slope of the ditch.

[0055] The above structure enables the adjustment of the spacing of the formwork template 1, as well as the adjustment of the template angle. This allows for quick adjustment of the template spacing and angle during the formwork erection process, while also simplifying demolding.

[0056] Meanwhile, because the angle and spacing can be flexibly adjusted, the construction process can be adapted to different ditch sections and different shapes, thus enabling the formwork and pouring of ditches with constantly changing shapes to be done using a single-structure template.

[0057] Similar to the structure of the lower telescopic rod 3, the upper telescopic rod 4 is fixedly connected between the angle adjustment and locking structures on the left and right sides. Specifically, the upper telescopic rod includes an upper central sleeve, with upper sliding rods slidably connected to both ends of the upper central sleeve. Upper bolts for locking the upper sliding rods are threaded to both ends of the top of the upper central sleeve (similarly, multiple threaded holes are opened on the upper sliding rod; during the sliding extension or shortening process, the upper bolts are tightened into different threaded holes); the upper sliding rod is fixedly connected to the horizontal fixed rod 51. Both the upper and lower telescopic rods 3 function to adjust the spacing of the template.

[0058] The outer ends of the aforementioned horizontal fixing rod 51 are respectively fixedly connected to mounting plates A. Mounting plates A have mounting holes. According to the existing method, mounting plates A are fixedly installed on the ditch (such as the top edge of the ditch), such as by installing anchor rods in the mounting holes to anchor them in the soil structure on the ditch.

[0059] Example 2

[0060] like Figure 1-5 As shown, in this embodiment, based on the structure of embodiment 1, in order to support the formwork after formwork erection and prevent formwork bulging during pouring, the bottom of the aforementioned upper telescopic rod 4 is fixedly connected to an anti-bulging mechanism 6 that supports the formwork templates 1 on both sides. The anti-bulging mechanism 6 enables the formwork template 1 to be self-contained, greatly simplifying the need to reinstall the anti-bulging support structure after formwork erection.

[0061] Specifically, the anti-bulging mold mechanism 6 is fixedly connected to the bottom of the central sleeve. The anti-bulging mold mechanism includes an upper hinge seat 61, which is fixedly connected to the central sleeve by a fixing rod; the lower end of the upper hinge seat 61 has a hinge interface, and inclined support top plates 63 arranged symmetrically on both sides are hinged in the hinge interface. That is, an inclined support top plate 63 is hinged to each side of the hinge interface.

[0062] The upper end of the inclined support plate 63 is fixedly connected to a hinge fixing screw 62 that is hinged to the upper hinge seat 61; both ends of the hinge fixing screw 62 are respectively threaded with positioning nuts 631 that are pressed and locked on the upper hinge seat 61.

[0063] During construction, after the formwork is erected, the operator loosens the positioning nut 631 and then flips the inclined support plate 63 so that it supports the formwork template 1, such as supporting it on the reinforcing rib. In this way, with the cooperation of multiple anti-bulging mechanisms, the template is fully supported, thereby effectively avoiding the defect of template bulging during pouring.

[0064] After the inclined support plate 63 is flipped and supported, the positioning nut 631 is locked to keep the inclined support plate 63 in position.

[0065] In actual operation, in order to increase the length of the inclined support plate 63 and facilitate its support on the formwork template 1, the lower end of the inclined support plate 63 is threaded with a hinged fixing screw 64 (a suitable long threaded cavity is opened on the inclined support plate 63), and the end of the hinged fixing screw 64 is fixedly connected with a support 641.

[0066] Rotate the hinge fixing screw 64 to extend the hinge fixing screw 64 from the inclined support top plate 63 to the support 641 and support it on the formwork template 1.

[0067] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A formwork support device for a trapezoidal open ditch made of cement concrete, characterized in that, It includes several mutually cooperating template support units; Each template support unit includes support templates symmetrically arranged on both sides, and the support templates are inclined; several hinge seats are hinged between the lower ends of the support templates, and a lower telescopic rod is fixedly connected between the hinge seats; The top of the formwork template is fixedly connected to several angle adjustment and locking structures; the formwork template is locked after the angle is adjusted by the angle adjustment and locking structures. An upper telescopic rod is fixedly connected between the two side angle adjustment and locking structures, and an anti-bulging mold mechanism supported on the two side mold templates is fixedly connected to the bottom of the upper telescopic rod.

2. The cement concrete trapezoidal open ditch formwork support device according to claim 1, characterized in that, The angle adjustment and locking structure includes a vertical slide rod fixedly connected to the top of the formwork template, a horizontal fixed rod slidably connected to the vertical slide rod, and both ends of the upper telescopic rod fixedly connected to the horizontal fixed rod.

3. The cement concrete trapezoidal open ditch formwork support device according to claim 2, characterized in that, The horizontal fixed rod has a long sliding opening that mates with the vertical slide rod; a transverse screw is fixedly connected inside the long sliding opening; the vertical slide rod has an adjusting sliding opening that slidably connects to the transverse screw; and a pair of nuts that are locked and positioned on both sides of the vertical slide rod are threaded onto the transverse screw.

4. The cement concrete trapezoidal open ditch formwork support device according to claim 2, characterized in that, The upper telescopic rod includes an upper central sleeve, and upper sliding rods are slidably connected to both ends of the upper central sleeve. The top two ends of the upper central sleeve are respectively threaded with upper bolts for locking the upper slide rod; The upper sliding rod is fixedly connected to the horizontal fixed rod; The anti-bulging mold mechanism is fixedly connected to the bottom of the central sleeve.

5. The cement concrete trapezoidal open ditch formwork support device according to claim 4, characterized in that, The anti-bulging mold mechanism includes an upper hinge seat, which is fixedly connected to the central sleeve by a fixing rod; The lower end of the upper hinge seat is provided with a hinge interface, and inclined support top plates symmetrically arranged on both sides are hinged in the hinge interface.

6. The cement concrete trapezoidal open ditch formwork support device according to claim 5, characterized in that, The upper end of the inclined support top plate is fixedly connected to a hinge fixing screw that is hinged to the upper hinge seat; Both ends of the hinge fixing screw are respectively threaded with positioning nuts that are pressed and locked onto the upper hinge seat.

7. The cement concrete trapezoidal open ditch formwork support device according to claim 5, characterized in that, The lower end of the inclined support plate is threaded with an extension adjusting screw, and the end of the extension adjusting screw is fixedly connected with a support.

8. The formwork support device for a trapezoidal open ditch made of cement concrete according to claim 1, characterized in that, A grid-like reinforcing rib structure is fixedly connected to the inner wall of the formwork template; The hinge seat is hinged to the grid-like reinforcing rib structure; The lower telescopic rod includes a lower central sleeve, and two ends of the lower central sleeve are respectively slidably connected to a lower sliding rod, which is fixedly connected to the hinge seat. The top two ends of the lower center sleeve are respectively threaded with lower bolts for locking the sliding rod.

9. The cement concrete trapezoidal open ditch formwork support device according to claim 2, characterized in that, Mounting plates are fixedly connected to the outer ends of the horizontal fixing rods.

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