A mobile trolley

Abstract

The present invention discloses a mobile trolley, comprising: a top mold assembly, each of which is provided with at least one first support rod fixing point; two side mold assemblies, each of which is provided with a second support rod fixing point, the top mold assembly is erected on the top of the two side mold assemblies, and the side mold assembly is hinged to the top mold assembly; a support rod, one end of which is connected to the first support rod fixing point, and the other end is connected to the second support rod fixing point; at least one group of translational demoulding mechanisms, including a horizontal walking device and a telescopic support device, the upper end of the telescopic support device is fixedly connected to the side mold assembly, and the lower end is hinged to the horizontal walking device, and the horizontal walking device can move along the transverse direction of the tunnel; two stepping support seats, which are arranged at the bottom of the side mold assembly, the two stepping support seats are connected by a connecting longitudinal beam, and the side mold assembly can be slidably arranged on the two stepping support seats; a telescopic drive device, the main body of which is fixedly connected to one of the stepping support seats, the telescopic end extends along the direction of the other stepping support seat, and is fixedly connected to the side mold assembly.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a mobile trolley. Background Art

[0002] The trolley, full name of lining trolley, is mainly used for pouring concrete in tunnels, diversion tunnels, and secondary linings. The trolley is generally composed of a formwork assembly, a top formwork frame, a translation mechanism assembly, a gantry assembly, a master-slave travel mechanism, a screw jack, a hydraulic system, an electrical system, etc.

[0003] During the process of tunnel masonry or concrete pouring, a trolley is needed to provide formwork support. Demolding is the process of removing the supporting formwork after it solidifies and reaches a certain strength. These supporting formworks are often very heavy, resulting in large workload, low work efficiency, long construction period and high cost.

[0004] Moreover, when the construction length of the tunnel is relatively long, if the entire tunnel is constructed at the same time, the masonry and pouring areas of the entire tunnel need to be supported by formwork, which will inevitably require a large number of supporting formworks.

[0005] Therefore, when the construction length of the tunnel is relatively long, in order to reduce the materials required for the support formwork, the segmented construction method is generally used, that is, the masonry of one section is completed first, and after the masonry wall is solidified, the support formwork at that place is removed and the next section is built. However, this construction method requires the support formwork used in the previous section to be removed first, and then rebuilt at the next masonry point. It requires repeated construction, dismantling, and re-construction. It consumes a lot of time, manpower, and material resources. Summary of the invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a mobile trolley, which can conveniently complete the demoulding of the trolley and move to the next casting station after demoulding to complete the template support again.

[0007] The technical solution adopted in the embodiment of the present invention is a mobile trolley, comprising:

[0008] A top mold assembly for supporting the top wall of the tunnel, wherein at least one first support rod fixing point is provided on each side of the top mold assembly;

[0009] Two side mold assemblies for supporting the two side walls of the tunnel, the two side mold assemblies are each provided with a second support rod fixing point, the top mold assembly is erected on the top of the two side mold assemblies, and the side mold assembly is hinged to the top mold assembly, and the side mold assembly can rotate inward around the hinge;

[0010] A support rod, one end of which is connected to the first support rod fixing point, and the other end of which is connected to the second support rod fixing point;

[0011] At least one set of translation demoulding mechanism, including a horizontal walking device and a telescopic support device, wherein the telescopic support device is vertically arranged, the upper end of the telescopic support device is fixedly connected to the side mold assembly, and the lower end is hinged to the horizontal walking device, and the horizontal walking device can move in the transverse direction of the tunnel;

[0012] Two stepping support seats, the two stepping support seats are arranged at the bottom of the side mold assembly and are arranged in sequence along the length direction of the side mold assembly, the two stepping support seats are connected by a connecting longitudinal beam, and the side mold assembly can be slidably arranged on the two stepping support seats along the length direction of the connecting longitudinal beam;

[0013] A telescopic driving device, wherein the main body of the telescopic driving device is fixedly connected to one of the stepping support seats, and the telescopic end of the telescopic driving device extends along the direction of the other stepping support seat and is fixedly connected to the side mold assembly.

[0014] The mobile trolley according to the embodiment of the present invention has at least the following beneficial effects:

[0015] 1. The trolley can complete the demoulding as a whole, with high demoulding efficiency, shortening the construction period and reducing the construction cost.

[0016] 2. After demoulding, the trolley can be gradually moved to the next casting station, avoiding repeated construction and dismantling of the trolley, thereby improving construction efficiency.

[0017] According to some embodiments of the present invention, the outer supporting surface of the top mold assembly is in an arch shape, the lower part of the side mold assembly is a straight section, and the upper part is an arc-shaped section, the lower end surface of the top mold assembly is spliced ​​with the upper end surface of the arc-shaped section, and the splicing surface is hinged by a hinge, and the outer supporting surface of the arc-shaped section and the outer supporting surface of the top mold assembly are spliced ​​into an arc-shaped arch surface.

[0018] According to some embodiments of the present invention, the translation demoulding mechanism is comprised of two groups, and the two groups of the translation demoulding mechanism are symmetrically arranged on both sides of the side mold assembly.

[0019] According to some embodiments of the present invention, the telescopic support device includes a lifting cylinder and a lifting cylinder support, the lifting cylinder support is fixedly connected to the side mold assembly, the body of the lifting cylinder is fixedly connected to the lifting cylinder support, and the lifting rod of the lifting cylinder is hinged to the horizontal walking device.

[0020] According to some embodiments of the present invention, a rolling wheel is provided at the top end of each stepping support seat, and the side mold assembly is arranged on the rolling wheel.

[0021] According to some embodiments of the present invention, the telescopic driving device is a telescopic oil cylinder, and the telescopic rod of the telescopic oil cylinder is fixedly connected to the side mold assembly.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 This is a schematic structural diagram of a mobile trolley in a state of supporting the inner wall of a tunnel according to an embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the mobile trolley in the demoulding state;

[0026] Figure 3 This is a schematic diagram of the side structure of the mobile trolley, at this time, the two stepping support seats are off the ground;

[0027] Figure 4 It is a schematic diagram of the side structure of the mobile trolley, at which time the two stepping support seats are in a state of supporting the ground.

[0028] Reference numerals:

[0029] Tunnel 000, top mold assembly 100, side mold assembly 200, straight section 210, arc section 220, first support rod fixing point 310, second support rod fixing point 320, hinge 400, support rod 500, translation demoulding mechanism 600, horizontal walking device 610, telescopic support device 620, lifting cylinder 621, lifting cylinder support 622, stepping support seat 700, rolling wheel 710, connecting longitudinal beam 800, telescopic drive device 900. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] Reference Figures 1 to 4 As shown, a mobile trolley comprises:

[0036] A top mold assembly 100 for supporting the top wall of the tunnel 000, with at least one first support rod fixing point 310 being provided on each side of the top mold assembly 100;

[0037] Two side mold assemblies 200 for supporting the two side walls of the tunnel 000, both side mold assemblies 200 are provided with second support rod fixing points 320, the top mold assembly 100 is erected on the top of the two side mold assemblies 200, and the side mold assembly 200 is hinged to the top mold assembly 100, and the side mold assembly 200 can rotate inward around the hinge 400;

[0038] A support rod 500, one end of which is connected to the first support rod fixing point 310, and the other end of which is connected to the second support rod fixing point 320;

[0039] At least one set of translation demoulding mechanism 600, including a horizontal walking device 610 and a telescopic support device 620, the telescopic support device 620 is vertically arranged, the upper end of the telescopic support device 620 is fixedly connected to the side mold assembly 200, and the lower end is hinged to the horizontal walking device 610, and the horizontal walking device 610 can move in the transverse direction of the tunnel 000;

[0040] Two stepping support seats 700, the two stepping support seats 700 are arranged at the bottom of the side mold assembly 200, and are arranged in sequence along the length direction of the side mold assembly 200, the two stepping support seats 700 are connected by a connecting longitudinal beam 800, and the side mold assembly 200 can be slidably arranged on the two stepping support seats 700 along the length direction of the connecting longitudinal beam 800;

[0041] The telescopic driving device 900 has a main body that is fixedly connected to one of the stepping support seats 700 , and a telescopic end of the telescopic driving device 900 that extends in the direction of the other stepping support seat 700 and is fixedly connected to the side mold assembly 200 .

[0042] When the trolley is in the supporting state, Figure 1 As shown, at this time, the top mold assembly 100 and the side mold assembly 200 are respectively in contact with the top wall and the side wall of the tunnel 000, and the two ends of the support rod 500 are respectively fixed to the first support rod fixing point 310 and the second support rod fixing point 320. The support rod 500 can support and position the top mold assembly 100 and the side mold assembly 200.

[0043] like Figure 2 As shown, when demoulding is required, the support rod 500 is first removed, and the horizontal walking devices 610 at the bottom of the two side mold assemblies 200 move toward each other, driving the side mold assemblies 200 to rotate around the hinge 400, so that the two side mold assemblies 200 are separated from the side walls of the tunnel wall 000. During the movement of the horizontal walking device 610, the telescopic support device 620 will extend to adapt to the demoulding process. The horizontal walking device 620 remains in contact with the ground. After the side mold assembly 200 becomes tilted, the total height of its support becomes lower, and the top mold assembly 100 connected to the two side mold assemblies 200 is lowered accordingly. The top mold assembly 100 is demoulded from the top of the tunnel wall 000, and then the demoulding work of the entire tunnel is completed. The demoulding efficiency is high, the construction period is reduced, and the construction cost is reduced.

[0044] At this time, the walking system of the mobile trolley is as follows Figure 3 As shown, the telescopic support devices 620 arranged on both sides of the side mold assembly 200 are in an extended supporting state, and the weight of the entire equipment is borne by the horizontal walking device 610.

[0045] When the trolley is moving, first, the telescopic support device 620 is lowered. As the telescopic support device 620 continues to lower, the horizontal walking device 610 at the bottom of the telescopic support device 620 is finally separated from the support relationship with the ground, and the stepping support seat 700 is in contact with the ground to support the movement. Figure 4 At this time, the two stepping support seats 700 are in a state of supporting the ground, and the walking device 610 is not subjected to force.

[0046] The weight of the entire side mold assembly 200 is borne by the stepping support seat 700. The stepping support seat 700 is fixed relative to the ground. Some auxiliary means can also be provided to fix the stepping support seat 700.

[0047] Subsequently, the telescopic drive device 900 begins to extend. Since the step support seat 700 is fixed relative to the ground, as the telescopic drive device 900 extends, the telescopic drive device 900 drives the side mold assembly 200 to slide forward on the two step support seats 700 along the extension direction of the telescopic drive device 900.

[0048] When the telescopic drive device 900 reaches the maximum extension length, the telescopic support device 620 starts to lift, and the horizontal walking device 610 contacts the ground for support, and enters the Figure 3 state. At this time, the stepping support seat 700 is separated from the ground, and the horizontal walking device 610 is fixed relative to the ground. Then the telescopic drive device 900 begins to shrink, because the extended end of the telescopic drive device 900 is fixedly connected to the side mold assembly 200, and the base of the telescopic drive device 900 is fixedly connected to the horizontal walking device 610. During the shrinking process, the telescopic drive device 900 will pull the two stepping support seats 700 to slide forward under the side mold assembly 200 until the telescopic drive 700 reaches the shrinkage limit, completing a stepping action.

[0049] Because the forward distance of each stepping action is limited, the above stepping action needs to be repeated many times until the entire trolley is sent to the next station.

[0050] After the trolley enters the next station, the telescopic support device 620 starts to extend, supported by the horizontal walking device 610, and then the two horizontal walking devices 610 move in opposite directions until the side mold assembly 200 touches the inner wall of the tunnel 000 and enters again. Figure 1 The support state in the middle is then connected and installed on the support rod 500. Concrete pouring and the like are then carried out.

[0051] In some embodiments of the present invention, the outer supporting surface of the top mold assembly 100 is in an arch shape, the lower part of the side mold assembly 200 is a straight section 210, and the upper part is an arc section 220, the lower end surface of the top mold assembly 100 is spliced ​​with the upper end surface of the arc section 220, and the splicing surface is hinged by a hinge 400, and the outer supporting surface of the arc section 220 and the outer supporting surface of the top mold assembly 100 are spliced ​​into an arc-shaped arch surface.

[0052] If the arc-shaped arch surface is formed by the top mold assembly 100 alone, the top mold assembly 100 cannot shrink during demoulding, and the distance between the top mold assembly 100 and the side wall will be too small, which is not conducive to demoulding.

[0053] The outer support surface of the top mold assembly 100 and the arc segments of the two side mold assemblies 200 are combined into a complete arc-shaped arch surface to support the top of the tunnel. The arc-shaped arch surface is composed of the top mold assembly 100 and the arc segment 220, so that when the top mold assembly 100 is demoulded, the entire arc-shaped arch surface can have a certain shrinkage space, which is convenient for demoulding.

[0054] like Figure 3 As shown, in some embodiments of the present invention, there are two groups of translational demoulding mechanisms 600 , and the two groups of translational demoulding mechanisms 600 are symmetrically arranged on both sides of the side mold assembly 200 .

[0055] In order to maximize the support range, the side mold assembly 200 generally has a certain width. If the width is relatively large, two sets of translation demoulding mechanisms 600 are provided to ensure that both sides of the side mold assembly 200 can move synchronously for demoulding.

[0056] In some embodiments of the present invention, the telescopic support device 620 includes a lifting cylinder 621 and a lifting cylinder support 622, the lifting cylinder support 622 is fixedly connected to the side mold assembly 200, the body of the lifting cylinder 621 is fixedly connected to the lifting cylinder support 622, and the lifting rod of the lifting cylinder 621 is hinged to the horizontal walking device 610. The telescopic support of the telescopic support device 620 is completed by contracting the lifting rod of the lifting cylinder 621.

[0057] In some embodiments of the present invention, a rolling wheel 710 is provided at the top of each stepping support seat 700 , and the side mold assembly 200 is disposed on the rolling wheel 710 .

[0058] By providing a rolling wheel 710 at the top of the stepping support seat 700, the sliding friction of the side mold assembly 200 is reduced during the sliding forward process, so that the telescopic driving device 900 can better drive the side mold assembly 200 forward.

[0059] In some embodiments of the present invention, the telescopic drive device 900 is a telescopic oil cylinder, and the telescopic rod of the telescopic oil cylinder is fixedly connected to the side mold assembly 200. When the telescopic rod of the telescopic oil cylinder is extended, the body of the telescopic oil cylinder and the support seat 700 are fixed, and during the extension of the telescopic rod, the connected side mold assembly 200 is pushed to slide. When the telescopic rod is retracted, the end of the telescopic rod and the side mold assembly 200 are fixed, and the body of the telescopic oil cylinder pulls the support seat 700 to move.

[0060] Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A mobile trolley, characterized in that: include: A top mold assembly for supporting the top wall of the tunnel, wherein at least one first support rod fixing point is provided on each side of the top mold assembly; Two side mold assemblies for supporting the two side walls of the tunnel, the two side mold assemblies are each provided with a second support rod fixing point, the top mold assembly is erected on the top of the two side mold assemblies, and the side mold assembly is hinged to the top mold assembly, and the side mold assembly can rotate inward around the hinge; A support rod, one end of which is connected to the first support rod fixing point, and the other end of which is connected to the second support rod fixing point; At least one group of translational demoulding mechanisms, including a horizontal walking device and a telescopic supporting device, wherein the telescopic supporting device is vertically arranged, the upper end of the telescopic supporting device is fixedly connected to the side mold assembly, and the lower end is hinged to the horizontal walking device, and the horizontal walking device can move in the transverse direction of the tunnel. When demoulding is required, the support rod is first removed, and the two horizontal walking devices move toward each other, driving the side mold assembly to rotate around the hinge, so that the two side mold assemblies are separated from the side wall of the tunnel; during the walking process of the horizontal walking device, the telescopic supporting device is extended, and the horizontal walking device keeps in contact with the ground. After the side mold assembly becomes tilted, the total height of the support becomes lower, and the top mold assembly connected to the two side mold assemblies is lowered accordingly, and the top mold assembly is demoulded from the top wall of the tunnel, thereby completing the demoulding work of the entire tunnel; Two stepping support seats, the two stepping support seats are arranged at the bottom of the side mold assembly and are arranged in sequence along the length direction of the side mold assembly, the two stepping support seats are connected by a connecting longitudinal beam, and the side mold assembly can be slidably arranged on the two stepping support seats along the length direction of the connecting longitudinal beam; A telescopic driving device, wherein the main body of the telescopic driving device is fixedly connected to one of the stepping support seats, and the telescopic end of the telescopic driving device extends along the direction of the other stepping support seat and is fixedly connected to the side mold assembly.

2. The mobile trolley according to claim 1, characterized in that: The outer supporting surface of the top mold assembly is in an arch shape, the lower part of the side mold assembly is a straight section, and the upper part is an arc-shaped section, the lower end surface of the top mold assembly is spliced ​​with the upper end surface of the arc-shaped section, and the splicing surface is hinged by a hinge, and the outer supporting surface of the arc-shaped section and the outer supporting surface of the top mold assembly are spliced ​​into an arc-shaped arch surface.

3. The mobile trolley according to claim 1, characterized in that: The translation demoulding mechanism comprises two groups, and the two groups of the translation demoulding mechanism are symmetrically arranged on both sides of the side mold assembly.

4. The mobile trolley according to claim 1, characterized in that: The telescopic support device includes a lifting cylinder and a lifting cylinder support, the lifting cylinder support is fixedly connected to the side mold assembly, the body of the lifting cylinder is fixedly connected to the lifting cylinder support, and the lifting rod of the lifting cylinder is hinged to the horizontal walking device.

5. The mobile trolley according to claim 1, characterized in that: A rolling wheel is provided at the top end of each stepping support seat, and the side mold assembly is arranged on the rolling wheel.

6. The mobile trolley according to claim 1, characterized in that: The telescopic driving device is a telescopic oil cylinder, and the telescopic rod of the telescopic oil cylinder is fixedly connected to the side mold assembly.

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