A granary shallow dome positioning structure

Abstract

The utility model discloses a kind of granary shallow dome positioning structure, to solve how to simply, quickly position and measure the technical problem of granary shallow dome arc bottom surface concrete form installation height. Including: mobile support and measuring device;The mobile support is door-shaped frame, the size of the door-shaped frame is configured to be able to be arranged on the row of prefabricated concrete support frame of granary shallow dome and the outside of granary shallow dome arc bottom surface concrete form located above these prefabricated concrete support frame;The bottom of the door-shaped frame is equipped with roller assembly, for supporting the door-shaped frame and enabling it to move back and forth on the bottom corner concrete form of the prefabricated concrete support frame along the arrangement direction of the row of prefabricated concrete support frame;The measuring device is installed on the door-shaped frame, for measuring the installation height of granary shallow dome arc bottom surface concrete form on each prefabricated concrete support frame. Utilize existing bottom corner concrete form as walking track, greatly improve the efficiency and safety of construction measurement.

Description

Technical Field

[0001] This utility model relates to grain warehouse construction technology, specifically to a shallow dome positioning structure for grain warehouses. Background Technology

[0002] In the construction of modern grain silos, large-diameter shallow dome structures are widely used due to their excellent load-bearing performance and large storage capacity. The construction of this type of silo roof structure typically employs a combination of prefabrication and cast-in-place methods. The specific construction process usually includes (see reference). Figure 1 First, a row of precast concrete support frames is installed radially at the top of the silo wall. Then, a shallow dome-shaped bottom concrete template is laid on top of these precast concrete support frames. Finally, steel bars are tied to the template and concrete is poured to form the silo roof structure.

[0003] Because the shallow dome of the grain silo has a specific radius of curvature, the installation height and position accuracy of the concrete formwork on the arc-shaped bottom surface of the dome directly determine the final geometry and structural safety of the silo roof. Therefore, during construction, precise positioning and height verification of the concrete formwork on the arc-shaped bottom surface of the grain silo's shallow dome on each precast concrete support frame are crucial steps.

[0004] Currently, the measurement of the installation height of the concrete formwork for the shallow dome and arc bottom surface of grain silos mainly relies on total station with prism for point measurement, or level with leveling rod (reference). Figure 2 However, these traditional methods have the following drawbacks: total stations or levels require repeated setup and leveling, and require professional surveyors to operate them. Faced with a large number of precast concrete support frames and the shallow dome-shaped arched bottom concrete formwork of the grain silo, point-by-point measurement is slow and cannot meet the requirements of rapid construction. Furthermore, because the construction surface is located above the high-altitude precast concrete support frames, the working space is narrow and has an arc-shaped slope, making it difficult for surveyors to move their measuring instruments between different locations, and posing safety hazards.

[0005] In summary, existing general-purpose measuring tools cannot fit the unique structure of the shallow dome of the grain silo. The construction site lacks a specialized positioning device that can rely on the existing precast concrete support frame structure and move rapidly along its arrangement direction to continuously measure the installation height of the concrete formwork on the arc-shaped bottom surface of the shallow dome of the grain silo. Utility Model Content

[0006] The purpose of this utility model is to provide a positioning structure for a shallow dome of a grain silo, so as to solve the technical problem of how to easily and quickly locate and measure the installation height of the concrete formwork on the arc bottom surface of the shallow dome of the grain silo.

[0007] This utility model provides a shallow dome positioning structure for a grain silo, comprising: a movable support and a measuring device; the movable support is a portal frame, the dimensions of which are configured to span a row of precast concrete support frames positioned over the shallow dome of the grain silo and the outer side of the arc-shaped bottom concrete template of the shallow dome of the grain silo located above these precast concrete support frames; the bottom of the portal frame is provided with a roller assembly for supporting the portal frame and enabling it to move back and forth along the arrangement direction of the row of precast concrete support frames on the bottom corner concrete templates of the precast concrete support frames; the measuring device is installed on the portal frame for measuring the installation height of the arc-shaped bottom concrete template of the shallow dome of the grain silo on each precast concrete support frame.

[0008] As an optimization and / or instantiation of the above-mentioned shallow dome positioning structure for grain silos, further: the portal frame includes two vertical columns and a crossbeam connecting the two vertical columns; when the portal frame spans a row of precast concrete support frames and the outer side of the shallow dome arc bottom concrete template of the grain silo located above these precast concrete support frames, the two vertical columns are respectively located on both sides of these precast concrete support frames, and the crossbeam is located above the shallow dome arc bottom concrete template of the grain silo located above these precast concrete support frames.

[0009] As an optimization and / or instantiation of the above-mentioned shallow dome positioning structure for grain storage, further: the measuring device includes a measuring scale vertically mounted on one side of the portal frame.

[0010] As an optimization and / or instantiation of the above-mentioned shallow dome positioning structure for grain storage, further: the measuring scale is fixedly connected to one of the vertical columns, and the scale face of the measuring scale faces the side that is easy to observe.

[0011] As an optimization and / or instantiation of the above-mentioned shallow dome positioning structure for grain storage, further: the measuring scale is a leveling rod or a graduated rod, the length of which extends to the top of the portal frame.

[0012] As an optimization and / or instantiation of the above-mentioned shallow dome positioning structure for grain storage, further: the measuring scale and the portal frame are an integral structure.

[0013] As an optimization and / or instantiation of the above-mentioned shallow dome positioning structure for grain storage, further: the bottom end of the vertical column is provided with a mounting foot extending in the moving direction of the portal frame, and the roller assembly is installed below the mounting foot.

[0014] The shallow dome positioning structure for grain silos provided by this utility model utilizes a portal frame spanning the precast concrete support frame and the outer side of the concrete template for the arc-shaped bottom surface of the shallow dome of the grain silo. By moving a roller assembly on the bottom corner concrete template, it achieves continuous and rapid detection of the installation height of the concrete template for the arc-shaped bottom surface of the shallow dome of the grain silo. Specific beneficial effects are as follows:

[0015] First, compared with the traditional method of measuring point by point using a total station or level, this invention uses a roller assembly on a movable support to move rapidly back and forth along the arrangement direction of the precast concrete support frame, relying on the bottom corner concrete formwork as a track. This continuous movement detection method avoids the tedious process of repeatedly setting up and leveling measuring instruments, and significantly shortens the time required for height verification of a large number of shallow dome-shaped arc bottom concrete formworks for grain silos.

[0016] Secondly, the portal frame's spanning design cleverly adapts to the construction environment of the shallow dome of the grain silo. The portal frame spans the outside of the precast concrete support frame, not only avoiding the difficulties of walking above the narrow, curved slope of the precast concrete support frame, but also providing a stable support platform for measurement. Operators only need to push or follow the device to read the measurement data, reducing the safety hazards and labor intensity of working at height.

[0017] Third, by integrating measuring devices (such as measuring rulers) into the portal frame, a unified, specialized positioning fixture is formed. This structure can intuitively and accurately measure the relative height of the concrete formwork on the bottom arc of the shallow dome of the grain silo above each precast concrete support frame, using the bottom corner concrete formwork as a reference. This effectively ensures the construction quality of the geometric curvature of the shallow dome of the grain silo and solves the problem that existing general measuring tools cannot fit special construction structures.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Additional aspects and advantages provided by the present invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to aid in understanding the present invention. The contents provided in the drawings and their related descriptions in this specification can be used to explain the present invention, but do not constitute an undue limitation on the present invention.

[0020] Figure 1 This is a schematic diagram of the concrete formwork erected for the arc-shaped bottom surface of the shallow dome of the grain silo during the current construction of the shallow dome.

[0021] Figure 2 This is a schematic diagram illustrating the current method of using a level instrument in conjunction with a leveling rod to measure the installation height of the concrete formwork on the shallow dome and arc bottom surface of a grain silo.

[0022] Figure 3 This is a schematic diagram of a shallow dome positioning structure for a grain silo, according to an embodiment of this application.

[0023] Figure 4 In order to be in Figure 3 A schematic diagram of a shallow dome positioning structure for grain storage, improved from the original design.

[0024] The following are marked in the figure: portal frame 11; mounting feet 12; roller assembly 13; precast concrete support frame 21; shallow dome arched bottom concrete formwork of grain silo 22; bottom corner concrete formwork 23; measuring ruler 31. Detailed Implementation

[0025] The present invention will now be clearly and completely described in conjunction with the accompanying drawings. Those skilled in the art will be able to implement the present invention based on these descriptions. Before describing the present invention in conjunction with the accompanying drawings, it should be particularly noted that:

[0026] The technical solutions and features provided in the various sections, including the following description, can be combined with each other without conflict. Furthermore, where possible, these technical solutions, features, and related combinations can be given specific technical subject matter and protected by relevant patents.

[0027] The embodiments of the present invention described below are generally only some embodiments and not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of patent protection.

[0028] The terms "comprising," "including," "having," and any variations thereof in this specification, the corresponding claims, and related sections are intended to cover non-exclusive inclusion. Other related terms and units can be reasonably interpreted based on the relevant content provided in this specification.

[0029] like Figure 3 and Figure 4 As shown in the figure, this embodiment provides a shallow dome positioning structure for grain storage, which mainly includes a movable support and a measuring device.

[0030] The movable support frame is a portal frame 11, which includes two parallel vertical columns and a crossbeam connected to the top of the two vertical columns. The structural dimensions (including height and span) of the portal frame are specifically configured according to the construction parameters of the shallow dome of the grain silo. Specifically, the portal frame is configured to span a row of precast concrete support frames 21 on the shallow dome of the grain silo and the outer side of the concrete formwork 22 of the arc bottom surface of the shallow dome of the grain silo located above these precast concrete support frames 21.

[0031] In operation, the two vertical columns are located on the left and right sides of a row of precast concrete support frames 21, while the crossbeam spans across the top of the shallow dome-shaped bottom concrete template 22 of the grain silo above these precast concrete support frames 21, thus forming an enclosed inspection space without interfering with the template being inspected.

[0032] To enable the movable function of the positioning structure, mounting feet 12 are provided at the bottom of the vertical column. In this embodiment, the mounting feet 12 extend back and forth along the moving direction of the portal frame 11 (i.e., along the arrangement direction of the precast concrete support frames 21) to increase the support area at the bottom of the portal frame 11 and improve its anti-overturning stability. A roller assembly 13 is installed below the mounting feet 12. The roller assembly 13 is designed so that the entire portal frame 11 can roll back and forth along the arrangement direction of a row of precast concrete support frames 21 on the bottom corner concrete template 23 (used for pouring the concrete fixing seat at the bottom of the precast concrete support frame 21) as a "track".

[0033] The measuring device is mounted on the portal frame 11 and is used to measure in real time the installation height of the concrete template 22 on the shallow dome arc bottom surface of the grain silo on each precast concrete support frame 21. In this embodiment, the measuring device includes a measuring scale 31 vertically mounted on one side of the portal frame. The measuring scale 31 can specifically be a leveling rod or a graduated metal rod.

[0034] like Figure 3 As shown, the measuring scale 31 is fixedly connected to one of the vertical columns (or both columns, depending on specific needs). To facilitate quick readings by construction personnel during movement, the scale face of the measuring scale faces the side that is easy to observe (usually the side facing away from the precast concrete support frame 21). The length of the measuring scale 31 extends above the top of the portal frame 11, ensuring that its range can cover the design height variation range of the shallow dome arc bottom surface concrete formwork 22 of the grain silo at different positions. In a preferred embodiment, the measuring scale 31 and the portal frame 11 are integrally welded structures (see...). Figure 4 Alternatively, an integrated structure secured by bolts can be used to ensure the stability of the measurement reference.

[0035] The method of using the shallow dome positioning structure of the grain silo described in this embodiment is as follows: At the construction site, first, the installation of a row of precast concrete support frames 21 and the laying of the bottom corner concrete formwork 23 are completed. Then, the portal frame 11 is placed across the row of precast concrete support frames 21, so that the bottom roller assembly 13 rests on the bottom corner concrete formwork 23. Construction workers push the portal frame 11 along the arrangement direction of the precast concrete support frames. Whenever the portal frame 11 moves to the position of a precast concrete support frame 21, the edge or reference point of the bottom arc concrete formwork 22 of the shallow dome of the grain silo will correspond to a certain scale on the measuring scale 31. Since the height of the bottom corner concrete formwork is a known fixed value (as a reference surface), construction workers only need to read the value on the measuring scale 31 to know the relative height of the bottom arc concrete formwork 22 of the shallow dome of the grain silo at the current position. By comparing the measured height with the designed theoretical arc curvature height, it is possible to quickly determine whether the formwork installation is accurate and make corresponding adjustments.

[0036] Using the existing bottom corner concrete formwork 23 as a walking track, there is no need to erect additional scaffolding or measurement platform. Moreover, the portal frame 11 has a stable structure and can adapt to the high-altitude and arc-slope working environment of the shallow dome of the grain silo, which greatly improves the efficiency and safety of construction measurement.

[0037] The foregoing has described the relevant content of this utility model. Those skilled in the art will be able to implement this utility model based on these descriptions. All other embodiments obtained by those skilled in the art based on the foregoing content of this specification without inventive effort should fall within the scope of this utility model.

Claims

1. A shallow dome positioning structure for grain storage, characterized in that: include: Mobile support and measuring device; The movable support is a portal frame, the dimensions of which are configured to span a row of precast concrete support frames positioned over the shallow dome of the grain silo and the outer side of the arc-shaped bottom concrete template of the shallow dome of the grain silo located above these precast concrete support frames; the bottom of the portal frame is equipped with a roller assembly for supporting the portal frame and enabling it to move back and forth along the arrangement direction of the row of precast concrete support frames on the bottom corner concrete templates of the precast concrete support frames; the measuring device is installed on the portal frame for measuring the installation height of the arc-shaped bottom concrete template of the shallow dome of the grain silo on each precast concrete support frame.

2. The shallow dome positioning structure for a grain silo according to claim 1, characterized in that: The portal frame includes two vertical columns and a horizontal beam connecting the two vertical columns. When the portal frame spans the outside of a row of precast concrete support frames and the shallow dome arc bottom concrete formwork of the grain silo located above these precast concrete support frames, the two vertical columns are located on both sides of these precast concrete support frames, and the horizontal beam is located above the shallow dome arc bottom concrete formwork of the grain silo located above these precast concrete support frames.

3. The shallow dome positioning structure for a grain silo according to claim 2, characterized in that: The measuring device includes a measuring scale that is vertically mounted on one side of the portal frame.

4. The shallow dome positioning structure for a grain silo according to claim 3, characterized in that: The measuring scale is fixedly connected to one of the vertical columns, and the scale face of the measuring scale faces the side that is easy to observe.

5. The shallow dome positioning structure for a grain silo according to claim 3, characterized in that: The measuring scale is a leveling rod or a graduated rod, the length of which extends to the top of the portal frame.

6. The shallow dome positioning structure for a grain silo according to claim 3, characterized in that: The measuring scale and the portal frame are an integral structure.

7. The shallow dome positioning structure for a grain silo according to claim 2, characterized in that: The bottom end of the vertical column is provided with a mounting foot extending in the direction of movement of the portal frame, and the roller assembly is installed below the mounting foot.

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