CN211874505U - A modular tie-barless hydraulic formwork trolley for cast-in-place integrated pipe gallery construction - Google Patents

Abstract

The utility model discloses a modular tie-bar-less hydraulic formwork trolley used for the construction of a cast-in-place integrated pipe gallery, comprising a support system and a formwork system assembled by modularization; the support system is a truss provided with guide grooves, and the The truss includes segmented longitudinal rods, transverse rods, vertical rods and inclined rods; the formwork system includes a side formwork with guide rods matched with the guide grooves and a top formwork set on the top of the truss; also includes telescopic The telescopic system includes a first power telescopic device for jacking up the truss, a second power telescopic device for pushing and pulling the side formwork, and a first support telescopic device under the truss, located in the A second support telescopic device between the truss and the side formwork, and a third power telescopic device for adjusting the lateral relative position of the truss and the traveling system. The implementation of the utility model can improve the adaptability of the formwork trolley, and improve the construction work efficiency, appearance quality and structural waterproofness of the pipe gallery.

Description

A modular tie-barless hydraulic formwork trolley for cast-in-place integrated pipe gallery construction

technical field

The utility model relates to the technical field of integrated pipe gallery structure construction, in particular to a modular tie-bar-less hydraulic formwork trolley for cast-in-place integrated pipe gallery construction.

Background technique

Judging from the underground comprehensive pipe gallery projects that have been built in China, the comprehensive pipe gallery is mostly cast-in-place method, and the conventional size pipe gallery is generally poured in two times. Pour the remaining side walls and roof a second time.

Most of the formwork used in the construction of the side wall roof are wooden formwork or small steel formwork, which needs to be erected full of brackets and assembled piece by piece. Likewise, it is very troublesome to dismantle the brackets and formwork, which consumes a lot of labor and time. Generally, the size of a single template is small, which leads to more seams on the template, which affects the appearance quality. The side wall formwork needs to be fixed with tie rods, and the left tie rod eyes not only affect the appearance quality, but also become a potential leakage point of the pipe gallery structure.

Drawing on the tunnel construction technology, the hydraulic formwork trolley for pipe gallery construction came into being. The hydraulic system can be used to quickly install the formwork, drop the frame and travel to the next construction section. The formwork is generally a large steel formwork with few tie rods. It can greatly improve the construction efficiency of the pipe gallery and improve the appearance quality of the pipe gallery.

Although the formwork trolley has its own advantages, the proportion of projects that use formwork trolleys to construct pipe corridors is relatively small at present, mainly because the trolleys have high one-time investment and low adaptability. The pit often requires a large crane to assist in the transition, and it is difficult to reuse it after the project is over.

Utility model content

The purpose of the utility model is: aiming at the shortcomings of the existing pipe gallery formwork trolleys, a modular tie-barless hydraulic formwork trolley is proposed, which improves its applicability and transformation space, and further improves the appearance quality and structure of the pipe gallery concrete. Waterproof.

The purpose of the present utility model is achieved through the following technical solutions:

A modular tie-barless hydraulic formwork trolley for cast-in-place integrated pipe gallery construction, characterized in that:

It includes a modularly assembled support system and a formwork system; the support system is a truss with guide grooves, and the truss includes segmented longitudinal rods, transverse rods, vertical rods and inclined rods; the formwork system includes a side formwork with a guide rod matched with the guide groove and a top formwork set on the top of the truss;

It also includes a telescopic system, which includes a first power telescopic device for jacking up the truss, a second power telescopic device for pushing and pulling the side formwork, and a first support telescopic device under the truss , a second support telescopic device arranged between the truss and the side formwork, and a third power telescopic device for adjusting the lateral relative position of the truss and the traveling system.

In some embodiments, the modular tie-rod-free hydraulic formwork trolley for the construction of the cast-in-place integrated pipe gallery further includes a traveling wheel arranged under the truss and driven by a motor or pulled by a hoist, and used for braking the Braking system for traveling wheels.

In some embodiments, the power telescopic device of the telescopic system is a hydraulic cylinder, and the support telescopic device is a screw rod.

In some embodiments, the segments of the longitudinal rods, the horizontal rods, the vertical rods and the inclined rods are all standardized and fixed-length rods processed from section steel, and the side formwork and the top formwork are made of standardized fixed-length rods. Assembled from steel plates. In at least one embodiment, both ends of the segments of the longitudinal rods, transverse rods, vertical rods and inclined rods are provided with flange plates for connection.

In some embodiments, the guide groove and the guide rod are nested square steels, so that the guide rod can expand and contract horizontally and laterally relative to the guide groove.

In some embodiments, the maximum telescopic adjustment range of the first support telescopic device and the second support telescopic device is not less than 20 cm.

In some embodiments, the truss is connected with the side formwork and the top formwork by bolts and/or pins.

By comprehensively adopting the above technical solutions, the following beneficial effects can be achieved:

1. After the side formwork is installed in place, by adjusting the second support telescopic device, the side formwork and the frame body form a force-bearing whole. The truss is spliced by segmental rods with sufficient rigidity. The support telescopic device can provide a fulcrum for the side formwork; by controlling the number of segments, it can provide enough fulcrum points for the side formwork to resist the lateral unbalanced pressure from the concrete, so there is no need to set tie rods on the formwork, which can effectively improve the appearance quality of the pipe gallery. structural waterproofness;

2. Through the modular assembly support system and formwork system, it can be flexibly combined to adapt to different pipe gallery structure sizes, and the connection method is simple and reliable, and the disassembly and assembly can be completed quickly. Applicability and utilization of hydraulic formwork trolleys.

Description of drawings

The present invention will be described by way of example and with reference to the accompanying drawings, wherein:

1 is a schematic diagram of the overall structure of a hydraulic formwork trolley in an exemplary embodiment of the present invention;

Fig. 2 is the first part structural schematic diagram of the hydraulic formwork trolley in Fig. 1;

Fig. 3 is the second part structural representation of the hydraulic formwork trolley in Fig. 1;

Fig. 4 is the third part structural schematic diagram of the hydraulic formwork trolley in Fig. 1;

FIG. 5 is a schematic cross-sectional view at A-A in FIG. 2 .

Description of reference numbers:

1. Horizontal rod, 2. Vertical rod, 3. Inclined rod, 4. Vertical rod, 5. Flange plate, 6. Second support telescopic device, 7. First support telescopic device, 8. Top formwork, 9. Side Template, 10, guide rod, 11, guide groove, 12, second power telescopic device, 13, first power telescopic device, 14, third power telescopic device, 15, walking wheel.

Detailed ways

The following discloses a variety of different implementations or examples for implementing the described subject solutions.

The utility model discloses a modular tie-bar-less hydraulic formwork trolley for the construction of a cast-in-place integrated pipe gallery, which comprises a support system and a formwork system assembled in a modular fashion. The support system is a truss with guide grooves, and the truss includes segmented longitudinal rods, transverse rods, vertical rods and inclined rods. The formwork system includes side formwork with guide rods matched with guide grooves and a top formwork set on top of the truss. Both the support system and the formwork system are assembled modularly, that is, the truss is detachably assembled with segmental rods, and the side formwork and top formwork are detachably assembled on the truss. When encountering non-standard size pipe gallery, Only a few additional rods and templates are needed to complete the transformation of the trolley, which can be used for the construction of other sizes of pipe gallery. The side formwork is connected to the truss through the cooperation of the guide rod and the guide groove, which can quickly complete the disassembly and assembly between the side formwork and the truss, which is convenient for the transfer of the pipe gallery.

In some embodiments, the modular tie-barless hydraulic formwork trolley for the construction of the cast-in-place integrated pipe gallery further includes a telescopic system, and the telescopic system includes a first power telescopic device for jacking up the truss, and a second power for pushing and pulling the side formwork. The telescopic device includes a first supporting telescopic device arranged under the truss, a second supporting telescopic device arranged between the truss and the side formwork, and a third power telescopic device for adjusting the lateral relative position of the truss and the traveling system. By arranging the second support telescopic device, the side formwork and the truss can form a force-bearing whole, so that the side formwork may not be provided with tie rods, which can effectively improve the appearance quality and structural waterproofness of the pipe gallery. Even when the side formwork adopts a large steel formwork, the side formwork can resist the lateral unbalanced pressure from the concrete because the second support telescopic device can provide a supporting force for the side formwork. By arranging the first support telescopic device, the truss, the side formwork and the top formwork can be integrally fixed after the top formwork and the side formwork are installed in place. According to at least one embodiment of the telescopic system, the power telescopic device of the telescopic system is a hydraulic oil cylinder, and the supporting telescopic device is a screw rod.

In some embodiments, the modular tie-barless hydraulic formwork trolley for the construction of the cast-in-place integrated pipe gallery further includes a traveling wheel arranged under the truss and driven by a motor or pulled by a hoist, and a braking system for braking the traveling wheel , so that the hydraulic formwork trolley can travel to the next construction section conveniently and quickly.

In some embodiments, the segments of the longitudinal rods, the horizontal rods, the vertical rods and the inclined rods are all standardized and fixed-length rods processed from section steel, and the side formwork and the top formwork are assembled from standardized and fixed-length steel plates. . The "standardized length" includes various sizes, for example, the processing lengths of the vertical bars are 2m, 1.5m, 1m, 0.5m, 0.3m, and 0.2m. In at least one embodiment, both ends of the segments of the longitudinal, transverse, vertical and oblique rods are provided with flange plates for connection. Due to the use of standardized fixed lengths, the types of molds can be reduced and the production cost can be reduced. Moreover, by selecting the appropriate size of standardized fixed-length rods and steel plates for combination, the support system can meet the requirements of different pipe gallery structure sizes, and the adaptability of the hydraulic formwork trolley can be improved.

In some embodiments, the guide groove and the guide rod are nested square steels, so that the guide rod can expand and contract horizontally and laterally relative to the guide groove. Such an arrangement is simple and reliable, and has the advantages of low cost and convenient operation.

In some embodiments, the maximum telescopic adjustment range of the first support telescopic device and the second support telescopic device is not less than 20 cm.

In some embodiments, the truss is connected to the side formwork and the top formwork by bolts and/or pins.

At least one exemplary embodiment is now provided in conjunction with the accompanying drawings. The detailed description of the exemplary embodiments provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents the exemplary embodiments provided in the present invention. .

Exemplary Embodiment 1:

Referring to Figures 1 to 5, a modular tie-barless hydraulic formwork trolley for cast-in-place integrated pipe gallery construction includes a support system, a formwork system, a telescopic system and a walking system. The support system is a truss, including longitudinal rods 2, transverse rods 1, vertical rods 4 and inclined rods 3, which are standard rods processed from section steel. The blue plate 5 and part of the cross bar 1 are provided with guide grooves 11 . The formwork system includes a side formwork 9 with guide rods 10 matched with guide grooves 11 and a top formwork 8 provided on the top of the truss. The support system and the formwork system are connected by bolts and/or pins. The telescopic system includes a first power telescopic device 13 for jacking up the truss, a second power telescopic device 12 for pushing and pulling the side formwork 9, and a third power telescopic device 14 for adjusting the lateral relative position of the truss and the walking system. The first supporting telescopic device 7 under the truss, and the second supporting telescopic device 6 between the truss and the side template 9; wherein, the power telescopic device is a hydraulic cylinder, and the supporting telescopic device is a screw rod. The traveling system includes traveling wheels 15 arranged under the truss and driven by a motor or pulled by a hoist, and a braking system for braking the traveling wheels 15 .

The hydraulic formwork trolley is assembled in sections. The length of a single car is 6m, the length of the vertical rod 2 is 6m, the vertical rod 4 and the horizontal rod 1 are set at a distance of 1.5m, and the maximum adjustment range of the lead screw is 30cm. Standard rods have a variety of processing sizes, such as vertical rod 4 processing lengths of 2m, 1.5m, 1m, 0.5m, 0.3m, 0.2m. The first power telescopic device 13, the second power telescopic device 12, and the third power telescopic device 14 are respectively provided with 4, 4 and 2 pieces/set, respectively controlling the installation width of the side formwork 9, the installation height of the top formwork 8 and the trolley Overall lateral position.

The construction method of using the above-mentioned hydraulic formwork trolley for the construction of the integrated pipe gallery includes the following steps:

1) The single-section trolley is in place, and the third power telescopic device 14 on the trolley is used to adjust the lateral position of the truss relative to the traveling wheel 15;

2) First use the first power telescopic device 13 to lift the top formwork 8 to make it in place, then extend the second power telescopic device 12 to make the side formwork 9 in place, and then install the first formwork after the top formwork 8 and the side formwork 9 are in place. Support telescopic device 7 and second support telescopic device 6;

3) The length of a single-section trolley is 6m, and multiple trolleys can be configured. The workshops of each section are connected by bolts. After the installation of the formwork is completed, the cast-in-place construction is carried out;

4) Before demoulding the single-section trolley, first remove the first support telescopic device 7 and the second support telescopic device 6, then shrink the second power expansion device 12 to demould the side formwork 9, and then shrink the first power expansion device 13 to make the top Template 8 is demolded.

The present invention is not limited to the foregoing specific embodiments. The present invention extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that is usually placed when the utility model product is used, only for the convenience of describing the present utility model and simplifying the description, not It is indicated or implied that the referred mechanism or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

Claims (8)

1. a modular tie-rod-free hydraulic formwork trolley for cast-in-place integrated pipe gallery construction is characterized in that: It includes a modularly assembled support system and a formwork system; the support system is a truss with guide grooves, and the truss includes segmented longitudinal rods, transverse rods, vertical rods and inclined rods; the formwork system includes a side formwork with a guide rod matched with the guide groove and a top formwork set on the top of the truss; It also includes a telescopic system, which includes a first power telescopic device for jacking up the truss, a second power telescopic device for pushing and pulling the side formwork, and a first support telescopic device under the truss , a second support telescopic device arranged between the truss and the side formwork, and a third power telescopic device for adjusting the lateral relative position of the truss and the traveling system. 2. The modular tie-bar-less hydraulic formwork trolley for cast-in-place integrated pipe gallery construction according to claim 1, characterized in that: it further comprises a traveling wheel arranged under the truss and driven by a motor or pulled by a hoist, and A braking system for braking the traveling wheels. 3. The modular tie-rod-less hydraulic formwork trolley for cast-in-place integrated pipe gallery construction according to claim 1 or 2, characterized in that: the power expansion device of the expansion system is a hydraulic cylinder, and the support expansion device is a screw rod. 4. The modular tie-bar-less hydraulic formwork trolley for cast-in-place integrated pipe gallery construction according to claim 1 or 2, characterized in that: the segments of the longitudinal bar, the horizontal bar, the vertical bar and the oblique bar are made of Standardized fixed-length rods processed from section steel, the side formwork and top formwork are assembled from standardized fixed-length steel plates. 5. The modular tie-bar-less hydraulic formwork trolley for cast-in-place integrated pipe gallery construction according to claim 4, characterized in that: the two ends of the segments of the longitudinal rod, the transverse rod, the vertical rod and the oblique rod are provided with Flange plate for connection. 6. The modular tie-bar-less hydraulic formwork trolley for cast-in-place integrated pipe gallery construction according to claim 1 or 2, characterized in that: the guide groove and the guide rod are nested square steels, so that all the The guide rod can be extended and retracted horizontally and laterally relative to the guide groove. The modular tie-bar-less hydraulic formwork trolley for cast-in-place integrated pipe gallery construction according to claim 1 or 2, characterized in that: the maximum telescopic adjustment of the first support telescopic device and the second support telescopic device The range is not less than 20cm. 8. The modular tie-bar-less hydraulic formwork trolley for cast-in-place integrated pipe gallery construction according to claim 1 or 2, wherein the truss is connected with the side formwork and the top formwork by bolts and/or pins.

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