An inner support mold of an arch structure
By designing an arch-shaped internal support mold and adopting a detachable hinged split structure and support unit, the problems of poor versatility and low stability of existing molds are solved, realizing the mold's flexibility and high stability, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP CO LTD
- Filing Date
- 2023-03-28
- Publication Date
- 2026-05-08
AI Technical Summary
The existing internal support molds for arch beam structures have poor versatility, are heavy, complex to assemble, time-consuming and labor-intensive to disassemble, and costly. Furthermore, they have low structural stability and service life, and cannot be easily adapted to actual working conditions.
An arch-shaped internal support mold was designed, consisting of an inner and outer mold section and an inner support section. It utilizes a detachable hinged split structure and support unit, and forms a stable mold system through upper and lower lateral supports and vertical components, enabling flexible assembly and disassembly of the mold.
The mold can be adjusted as needed to adapt to different working conditions. It has good stress distribution, long service life, high overall structural stability, and is easy to disassemble and recycle, thus reducing maintenance and usage costs.
Smart Images

Figure CN116220074B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of building engineering technology, and in particular relates to an internal support mold for an arch structure. Background Technology
[0002] Arch-beam slope protection structures are crucial for protecting roadbeds and preventing soil erosion. With the increasing development of construction, water conservancy, and transportation facilities, arch-shaped slope protection is mostly constructed using cast-in-place concrete. However, existing internal support molds suffer from poor versatility, are heavy, and involve complex assembly and disassembly during construction, which is time-consuming and labor-intensive. Furthermore, small-batch (trial production) requires the manufacture of multiple sets of molds, leading to high costs and inconvenience. While improved modular mold products have emerged, they cannot be easily adapted to specific working conditions. The mold itself lacks a cohesive system, with stress concentrated on critical structures, making it prone to damage, resulting in low service life and reliability. Moreover, the components cannot mutually support each other or form self-locking mechanisms, compromising overall structural stability. Therefore, it is necessary to improve existing mold products. Summary of the Invention
[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes an internal support mold for an arch-shaped structure.
[0004] To achieve the above objectives, the technical solution created by this invention is implemented as follows:
[0005] An arch-shaped internal support mold includes an outer mold portion, an inner mold portion, and an inner support portion inside the inner mold portion. The inner mold portion includes an inner arc-shaped structural section, with several inner vertical structural sections installed on the lower sides of both ends of the inner arc-shaped structural section. The outer mold portion includes an outer arc-shaped structural section, with several outer vertical structural sections installed on the lower sides of both ends of the outer arc-shaped structural section. Both the inner and outer arc-shaped structural sections adopt a two-part hinged split structure. The inner support portion includes an upper support unit and a lower support unit arranged between the two inner vertical structural sections.
[0006] The upper support unit includes mounting seats on the inner vertical structural sections on the left and right sides, and an upper transverse support is provided between the two mounting seats. Two vertical members are provided between the upper transverse support and the inner arc-shaped structural section. The mounting seats are all vertically slidably installed on the inner vertical structural section.
[0007] The lower support unit includes support seats on the inner vertical structural sections on the left and right sides, a lower transverse support is provided between the two support seats, and an upper support connecting unit is provided on each support seat. Each upper support connecting unit includes a vertical adjustment mechanism, and the upper end of the vertical adjustment mechanism is connected to the end of the corresponding upper transverse support.
[0008] The outer mold is assembled based on the inner mold. The upper horizontal support maintains the spacing between the vertical parts on both sides of the mold to a specific size. At the same time, the lower horizontal support tightens the vertical parts on both sides of the mold, and the upper support connecting unit transmits the support seat reaction force to the upper support unit, so that the vertical components support the arc-shaped part of the mold to maintain the arc-shaped part of the mold in a state of expansion with a specific size.
[0009] Furthermore, the lower lateral support includes two lower lateral support segments, and an inner support adjustment mechanism is provided between the two lower lateral support segments; a fixed seat is provided on the lower side of the support base, and a slider is provided between the fixed seat and the lower lateral support segments.
[0010] Furthermore, the lower lateral support unit is detachably connected to the support base.
[0011] Furthermore, the vertical member is hinged to the inner arc-shaped structural segment, and the vertical member is hinged to the upper transverse support.
[0012] Furthermore, the vertical member can be detachably connected to both the inner arc-shaped structural segment and the upper transverse support.
[0013] Furthermore, the outer mold portion includes an outer arc-shaped structural section and an outer vertical structural section.
[0014] Furthermore, the inner vertical structural section is provided with several connecting holes, and the outer vertical structural section is fixed by connectors passing through the connecting holes.
[0015] Furthermore, the inner arc-shaped structural segment includes a left inner arc-shaped structural component and a right inner arc-shaped structural component, which are hinged together.
[0016] Compared with existing technologies, the present invention has the following advantages:
[0017] The internal support mold provided by this invention can be adaptively adjusted as needed. By assembling different external mold parts, it can adapt to different working conditions, has good stress distribution, long service life, and ensures overall structural stability. Furthermore, the connections between the internal and external mold parts, as well as between the structural components of the internal mold part and the external mold part, are all detachable, facilitating disassembly and recycling. When some parts are damaged, only the corresponding parts need to be replaced, resulting in low usage and maintenance costs. Attached Figure Description
[0018] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:
[0019] Figure 1A schematic diagram of the structure created by this invention;
[0020] Figure 2 This is a schematic diagram of the structure of the vertical part in an embodiment of the present invention when it adopts three vertical structural segments within a segment;
[0021] Figure 3 A schematic diagram showing the inner and outer vertical structural sections of the present invention with connecting plates;
[0022] Figure 4 for Figure 3 Schematic diagram of the connection point of the middle connecting plate;
[0023] Figure 5 for Figure 3 A schematic diagram after removing the outer mold portion;
[0024] Figure 6 This is a schematic diagram of the inner mold split docking structure in an embodiment of the present invention;
[0025] Figure 7 This is a schematic diagram of the assembly of the split docking structure of the inner mold in an embodiment of the present invention;
[0026] Figure 8 A three-dimensional structural diagram of the inner mold split docking structure during assembly in an embodiment of the present invention;
[0027] Figure 9 This is a schematic diagram of an embodiment of the present invention with a heat dissipation component.
[0028] Figure 10 This is a schematic diagram of the cross-section of the inner and outer mold portions in an embodiment of the present invention. Detailed Implementation
[0029] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.
[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.
[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0032] The invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0033] An arch-shaped internal support mold, such as Figures 1 to 10 As shown, the system includes an inner mold section 1, an outer mold section 2, and an inner support section on the inner side of the inner mold. The inner mold section includes an inner arc-shaped structural section 3, with several inner vertical structural sections 4 installed on the lower sides of both ends of the inner arc-shaped structural section. An upper support unit 5 and a lower support unit 6 are arranged between the two inner vertical structural sections. The inner mold section is assembled from multiple split structural components. The ends of the inner arc-shaped structural section are connected to the inner vertical structural sections, and adjacent inner vertical structural sections are connected by an inner mold split docking structure 17. The inner arc-shaped structural section includes a left inner arc-shaped structural section and a right inner arc-shaped structural section, which are hinged together. That is, the inner arc-shaped structural section adopts a two-part hinged split structure, which is very convenient for storage after recycling and occupies little space. Figure 1 The diagram shown illustrates a mold with two internal vertical structural sections in its vertical section. Figure 2 The diagram shown is a schematic of a mold with three internal vertical structural sections in its vertical section.
[0034] The outer mold is assembled based on the inner mold and can be disassembled independently of the inner mold. Lower horizontal supports provide support for the vertical sections on both sides of the mold, and upper and lower support units connect them. Simultaneously, the upper support unit transmits the support seat reaction force to the upper support unit, ensuring that the upper horizontal supports maintain a specific spacing between the vertical sections S2 on both sides of the mold. This specific spacing refers to the mold having a defined width after the inner support is in place; this width is determined by the length of the upper horizontal support, ensuring stable casting quality. Simultaneously, the vertical components support the curved section S1 of the mold, maintaining a defined open state. This defined open state ensures that the shape and size of the curved section of the mold are unique after the inner support is in place, remaining stable during construction without shaking or displacement. This creates a unified mold structure where all components support and lock each other in place, preventing shaking or disintegration during use.
[0035] As a specific structural design: the inner mold split-connection structure adopts a plug and slot mating form. Specifically, a plug 20 is provided at one end of the inner vertical structural section, and a slot structure 21 is provided at the other end. The same slot structure is also provided at both ends of the inner arc-shaped structural section. The first inner vertical structural section (adjacent to the inner arc-shaped structural section) forms a split-connection structure between the two by the plug mating with the slot structure of the inner arc-shaped structural section. The plug of the next inner vertical structural section mates with the slot structure of the first inner vertical structural section, forming a split-connection structure between the two inner vertical structural sections. Subsequent connected inner vertical structural sections follow the same principle, all forming a split-connection structure between two inner vertical structural sections through plug and slot structures.
[0036] In an optional embodiment, the slot structure includes a guide portion 22 and a mating portion 23. After the plug is inserted into place through the guide portion, it is engaged with the mating portion, which ensures the connection between the two split structures. The supporting force from the upper and lower support units to the outside maintains a reliable connection at the split docking structure between the two split structural components, and it will not loosen during use. That is, the supporting force of the upper and lower support units ensures the reliability of the connection between the split structural components.
[0037] The upper support unit includes mounting seats 7 arranged on the first inner vertical structural segment (adjacent to the inner arc-shaped structural segment) on both the left and right sides, and an upper transverse support 8 between the two mounting seats. Two vertical members 9 are provided between the upper transverse support and the inner arc-shaped structural segment. For example, the vertical members are hinged to the inner arc-shaped structural segment and also hinged to the upper transverse support. Furthermore, the vertical members are detachably connected to both the inner arc-shaped structural segment and the upper transverse support.
[0038] The lower support unit includes support seats 10 fixedly installed on the last vertical structural segment on the left and right sides (the one furthest from the inner arc-shaped structural segment). A lower transverse support 11 is provided between the two support seats, and an upper support connecting unit 12 is provided on each support seat. Each upper support connecting unit includes a vertical adjustment mechanism, the upper end of which is connected to the end of the corresponding upper transverse support. The vertical adjustment mechanism establishes a connection between the lower transverse support and the upper transverse support, so that the various components of the support mold form an interaction force, resulting in good overall stress condition of the mold, high stability, and resistance to deformation during long-term use.
[0039] Each mounting base is vertically slidably installed on its corresponding inner vertical structural section. Inside the inner vertical structural section, a slide rail structure is provided to mate with the mounting base. The mounting base has a groove structure that mates with the slide rail structure; for example, the groove can be a T-groove or a dovetail groove, and the slide rail structure simply needs to match it. By adjusting the height of the upper horizontal support using a vertical adjustment mechanism, the inner arc-shaped structural section can be effectively tightened. This is especially useful when the inner arc-shaped structural section uses a two-part hinged split structure, where the lower side of each split is connected to a vertical component. After the upper support unit is tightened and fixed by the vertical adjustment mechanism, the vertical component can effectively maintain the stability of the two hinged splits. This structural design makes installation more convenient. First, the two ends of the vertical component can be connected to the splits of the inner arc-shaped structural section and the upper horizontal support, respectively. At this time, the two splits of the inner arc-shaped structural section are not fully opened. Then, the mounting seats at both ends of the upper horizontal support are slidably mounted on the slide rails of the inner vertical structural section. By tightening the upper support unit through the vertical adjustment mechanism, the assembly of the inner mold part can be completed, and the overall structure has excellent stability.
[0040] The aforementioned lower lateral support includes two lower lateral support segments 13, with an inner support adjustment mechanism 14 between the two segments. A fixed seat 15 is provided on the lower side of the support base, and a slider is provided between the fixed seat and the lower lateral support segments. The lower lateral support segments are detachably connected to the support base. In an optional embodiment, the support base has an insertion slot, through which the lower lateral support segment passes and is inserted into the insertion slot. The fixed seat has a through hole through which the lower lateral support segment passes and slides with the fixed seat. The fixed seat provides stable support for the lower lateral support segment. A straight line is defined by two points (the insertion slot and the through hole). Therefore, the insertion slot and through hole are used to keep the lower lateral support segment horizontal. The inner support adjustment mechanism drives the inner support adjustment mechanisms on both sides to move horizontally, thereby adjusting the length of the lower lateral support.
[0041] In an optional embodiment, the outer mold portion can adopt the same structural design as the inner mold portion. The outer mold portion is assembled from multiple split structural components. The two ends of the outer arc-shaped structural segment are connected to the outer vertical structural segment, as well as between two adjacent outer vertical structural segments, through a split-joint structure of the outer mold. For example, the outer arc-shaped structural segment includes a left outer arc-shaped structural component and a right outer arc-shaped structural component, which are hinged together.
[0042] As a specific structural design: the external mold split-connection structure uses a plug and slot mating form. Specifically, one end of the external vertical structural segment has a plug, and the other end has a slot structure. Both ends of the external arc-shaped structural segment have slot structures. The first external vertical structural segment (adjacent to the external arc-shaped structural segment) forms a split-connection structure between the two by merging the plug with the slot structure of the external arc-shaped structural segment. The plug of the next external vertical structural segment mates with the slot structure of the first external vertical structural segment to form a split-connection structure between the two external vertical structural segments. Subsequent connected external vertical structural segments follow the same pattern, all forming an external mold split-connection structure between two external vertical structural segments through plug and slot structures.
[0043] In another optional embodiment, the inner vertical structural section is provided with several connecting holes, and the outer vertical structural section is connected by fasteners passing through the connecting holes. In a further improved embodiment, the number of split structural components used in the outer mold part is the same as the number of split structural components in the inner mold part, and connecting plates 18 are correspondingly provided on the inner and outer vertical structural sections, such as... Figure 4 As shown, the connecting plates of the two are fixed by the connector 19 (such as bolts), thereby completing the assembly of the inner and outer vertical structural sections. Since the outer arc-shaped structural section and the outer vertical structural section are connected by the outer mold split docking structure, it is only necessary to fix the outer vertical structural section and the inner vertical structural section to ensure that the inner mold part and the outer mold part are fixed.
[0044] The upper lateral support maintains the vertical structural spacing on both sides of the inner mold section and serves as the main support structure for this support mold. The vertical components effectively support the inner arc-shaped structural section. The inner mold section, as the supporting foundation for the outer mold section, possesses good stability. Furthermore, since both the outer arc-shaped and outer vertical structural sections of the outer mold section can be detached and installed onto corresponding structural components of the inner mold section, it is possible to assemble the inner mold section with outer mold sections of different specifications (thickness or shape) to adapt to different production needs. The inner mold section, as the foundation of the support mold, does not require replacement or adjustment; only the outer mold section of different specifications needs to be replaced.
[0045] In an optional embodiment, a heat dissipation assembly is provided between the outer mold portion and the inner mold portion. The heat dissipation assembly includes a circulating water pipe 24 and a cooling water circulation pump installed on the circulating water pipe. The circulating water pipe is made of commercially available flexible water pipe material. Cooling water is drawn from an external container by the cooling water circulation pump and enters the circulating water pipe. Since the structural components of both the inner mold portion and the outer mold portion are in contact with the circulating water pipe, heat conduction can be carried out. Therefore, the circulating water pipe can be used for heat dissipation and cooling. Specifically, external grooves are provided on the outer surface of the inner vertical structural section and the outer surface of the inner arc-shaped structural section, and the external grooves of each structural component of the inner mold part are connected to form an inner mold receiving groove 25; internal grooves are provided on the inner surface of the outer vertical structural section and the inner surface of the outer arc-shaped structural section, and the internal grooves of each structural component of the outer mold part are connected to form an outer mold receiving groove 26. Using this internal support mold, after concrete pouring, the cooling water in the circulating water pipe can be circulated by turning on the circulating pump, effectively removing heat and making the temperature change of the inner and outer sides of the concrete more uniform, avoiding cracks caused by large temperature differences, and thus preventing quality problems. Due to the modular design of the outer and inner mold parts, the inner and outer mold receiving grooves together form a cavity for placing the circulating water pipe, making the water pipe layout more convenient. At the same time, the inspection, maintenance, and upkeep of the circulating water pipe are also very easy.
[0046] For example, the vertical adjustment mechanism includes a vertically arranged drive cylinder or jack. The internal support adjustment mechanism includes a horizontally arranged jack or drive cylinder. The drive cylinder referred to here can be an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder. To improve adaptability, an extension rod can be installed at the front end of the cylinder rod to facilitate connection with the corresponding structural components. Both the vertical adjustment mechanism and the internal support adjustment mechanism have an adjustable length range, which can effectively adapt to both the width and height of the mold, laying the structural foundation for the mold to adapt to the working conditions. It should be noted that there are no connecting parts between the internal support adjustment mechanism and the support base and the fixed base, making installation, adjustment, and disassembly more convenient. A straight line is determined by the fixed base and the support base, ensuring the stability of the internal support adjustment mechanism.
[0047] During assembly and use, first connect one inner vertical structural section to each end of the inner arc-shaped structural section, and then connect the other inner vertical structural sections sequentially to the first inner vertical structural section. Then, based on the inner mold section, install the outer mold section on the outside of the inner mold section. Next, install the mounting seats at both ends of the upper horizontal support (with hinged vertical members) onto the slide rail structure of the first inner vertical structural section. Hinge the vertical members on the upper horizontal support to the connecting base 16 on the inner side of the inner arc-shaped structural section. Connect the vertical adjustment mechanism on the support seat of the last inner vertical structural section to the upper horizontal support, and tighten the upper horizontal support through the vertical adjustment mechanism, causing the vertical members to open the arc-shaped part of the mold (inner and outer arc-shaped structural sections). Then, pass the lower horizontal support segments at both ends of the lower support unit through the fixed seat and insert them into the insertion slots of the support seat. Finally, use the inner support adjustment mechanism to open the vertical part of the mold (inner and outer vertical structural sections) to both ends, thus completing the assembly. The operation is very convenient, and the overall stability is very high.
[0048] This set of molds is very easy to disassemble. The internal support part can be disassembled quickly. The vertical support, upper horizontal support unit and lower horizontal support unit can be disassembled at the same time. After that, the connection between the inner and outer mold parts is released, and each inner vertical structure section is removed from the slot structure of the inner mold part in sequence to complete the disassembly. It has few limitations and the construction operation is flexible.
[0049] The internal support mold provided by this invention can be adaptively adjusted as needed. By assembling different external mold parts, it can adapt to different working conditions, has good stress distribution, long service life, and ensures overall structural stability. Furthermore, the connections between the internal and external mold parts, as well as between the structural components of the internal mold part and the external mold part, are all detachable, facilitating disassembly and recycling. When some parts are damaged, only the corresponding parts need to be replaced, resulting in low usage and maintenance costs.
[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An internal support mold for an arch-shaped structure, characterized in that: The system includes an outer mold section, an inner mold section, and an inner support section on the inner side of the inner mold section. The inner mold section includes an inner arc-shaped structural section, with several inner vertical structural sections installed on the lower sides of both ends of the inner arc-shaped structural section. The outer mold section includes an outer arc-shaped structural section, with several outer vertical structural sections installed on the lower sides of both ends of the outer arc-shaped structural section. Both the inner and outer arc-shaped structural sections adopt a two-part hinged split structure. The inner support section includes an upper support unit and a lower support unit arranged between the two inner vertical structural sections. The upper support unit includes mounting seats on the inner vertical structural sections on the left and right sides, and an upper transverse support is provided between the two mounting seats. Two vertical members are provided between the upper transverse support and the inner arc-shaped structural section. The mounting seats are all vertically slidably installed on the inner vertical structural section. The lower support unit includes support seats on the inner vertical structural sections on the left and right sides, a lower transverse support is provided between the two support seats, and an upper support connecting unit is provided on each support seat. Each upper support connecting unit includes a vertical adjustment mechanism, and the upper end of the vertical adjustment mechanism is connected to the end of the corresponding upper transverse support. The outer mold is assembled based on the inner mold. The upper horizontal support maintains the distance between the vertical parts on both sides of the mold. At the same time, the lower horizontal support tightens the vertical parts on both sides of the mold, and the upper support connecting unit transmits the support seat reaction force to the upper support unit, so that the vertical components support the arc-shaped part of the mold to keep the arc-shaped part of the mold in an open state.
2. The inner support mold for an arched structure according to claim 1, characterized in that: The lower lateral support includes two lower lateral support segments, and an inner support adjustment mechanism is provided between the two lower lateral support segments; a fixed seat is provided on the lower side of the support base, the lower lateral support segments are detachably connected to the support base, the support base is provided with an insertion slot, the fixed seat is provided with a through hole, the lower lateral support segments pass through the through hole through the fixed seat and are inserted into the insertion slot of the support base, and the lower lateral support segments and the fixed seat are slidably engaged.
3. The inner support mold for an arched structure according to claim 1, characterized in that: The lower lateral support unit is detachably connected to the support base.
4. The inner support mold for an arched structure according to claim 1, characterized in that: The vertical member is hinged to the inner arc-shaped structural segment, and the vertical member is also hinged to the upper transverse support.
5. The inner support mold for an arched structure according to claim 1, characterized in that: The vertical members can be detachably connected to the inner arc-shaped structural section and to the upper transverse support.
6. The inner support mold for an arched structure according to claim 1, characterized in that: The outer mold section includes an outer arc-shaped structural section and an outer vertical structural section.
7. The inner support mold for an arched structure according to claim 6, characterized in that: The inner vertical structural section is provided with several connecting holes, and the outer vertical structural section is fixed by connectors passing through the connecting holes.
8. The inner support mold for an arched structure according to claim 1, characterized in that: The inner arc-shaped structural segment includes a left inner arc-shaped structural component and a right inner arc-shaped structural component, which are hinged together.
Citation Information
Patent Citations
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