A device for supporting inverted arch formwork

Abstract

The utility model discloses a inverted arch formwork supporting device relates to inverted arch formwork supporting technical field, include: a plurality of hollow fixed parts and a plurality of hollow connecting pieces, the hollow fixed part inside fixedly connected with double -shaft motor, two output ends of double -shaft motor are fixedly connected with the lead screw respectively, the lead screw one end is rotatably connected with the inboard of hollow fixed part, the lead screw surface is connected with the silk seat of screw thread, the silk seat top and bottom and the inboard inboard sliding connection of hollow fixed part, the silk seat surface is fixedly connected with two movable rods, one end of movable rod is fixedly connected with the fixed plate, the fixed plate surface is fixedly connected with the fixed rod, the fixed rod one end fixedly connected with arc support plate. The utility model discloses through the effect under the double -shaft motor drive support plate close to and away from formwork, then through the rotation knob and the limit knob to the screw rod and the limit screw rod are loosened and screwed to the detachable rod, finally make the support device to be convenient for overhauling to be taken down.

Description

Technical Field

[0001] This utility model relates to the field of arch formwork support technology, specifically an arch formwork support device. Background Technology

[0002] An invert arch is a reverse arch-shaped structure installed at the bottom of a tunnel to improve the stress conditions of the tunnel's superstructure. The invert arch is one of the main components of the tunnel structure. Together with the secondary tunnel lining, the invert arch forms the entire tunnel, increasing the stability of the tunnel structure. The traditional construction sequence for tunnel invert arches and invert arch filling is as follows: construction preparation, tunnel excavation, construction of the initial invert arch support steel frame, shotcreting of the initial invert arch support steel frame, tying invert arch reinforcement, installation of waterstops, installation of formwork, pouring of invert arch concrete, concrete reaching full strength, removal of invert arch formwork, and pouring of invert arch filling concrete. During tunnel invert arch construction, certain support devices are usually used to support the formwork.

[0003] However, with existing technology, it is inconvenient to support the template with the support plate, which affects the pouring quality. At the same time, it is inconvenient to remove the support device for maintenance. Utility Model Content

[0004] The purpose of this utility model is to provide a support device for inverted arch formwork to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A formwork support device for an inverted arch includes multiple hollow fixing components and multiple hollow connecting components. A dual-axis motor is fixedly connected inside each hollow fixing component. A lead screw is fixedly connected to each of the two output ends of the dual-axis motor. One end of each lead screw is rotatably connected to the inner side of the hollow fixing component. A lead screw seat is threaded onto the surface of the lead screw. The top and bottom of the lead screw seat are slidably connected to the inner side of the hollow fixing component. Two moving rods are fixedly connected to the surface of the lead screw seat. A fixing plate is fixedly connected to one end of each moving rod. A fixing rod is fixedly connected to the surface of the fixing plate. An arc-shaped support plate is fixedly connected to one end of each fixing rod. The surface of the moving rod is fixedly connected to the inside of the hollow fixing component.

[0007] Preferably, a detachable rod is fixedly connected to the top of the hollow fixing member, and limit screws are threadedly connected to both sides of the hollow connecting member.

[0008] Preferably, one end of the limiting screw is fixedly connected to a limiting knob, and the other end of the limiting screw is threadedly connected to an arc-shaped limiting block, the inner side of which is in contact with the surface of the detachable rod.

[0009] Preferably, a fixing member is fixedly connected to the top of the hollow connector, the fixing member has a connecting cavity inside, a screw is threadedly connected to one side of the fixing member, and a knob is fixedly connected to one end of the screw.

[0010] Preferably, the top of the detachable rod has a threaded through hole, and the size of the screw is adapted to the size of the threaded through hole.

[0011] Preferably, the hollow fasteners are bolted together with detachable parts.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] When using this invention, when moving it to the position where template support is needed, connect the dual-axis motor to an external power source and start the dual-axis motor. The clockwise rotation of the dual-axis motor will drive the lead screws on both sides to rotate. The threads of the lead screws on both sides are in opposite directions, which can drive the lead screw seats on the surface of the lead screws to move in opposite directions through the dual-axis motor, thereby driving the moving rod to move outward of the hollow fixing part, and then driving the fixing plate to move closer to the template, and finally driving the arc-shaped support plate to move closer to the template, until the arc-shaped support plate presses the template tightly. Through the above method, each arc-shaped support plate can press the template at the corresponding position, which can improve the pouring quality. When it is necessary to move the arc-shaped support plate away from the template, the above method can be reversed. After retracting the arc-shaped support plate, the support device is moved to the next template position that needs support under the action of the arch bridge.

[0014] After a period of use, the support device will wear out and require maintenance. To perform maintenance, rotate the knob. Rotating the knob will move the screw outwards within the detachable rod until it is completely removed. Then, rotate the two limit knobs. These knobs will rotate the limit screw, which will move the arc-shaped limit plate away from the surface of the detachable rod until it reaches a certain distance. Finally, move the hollow fixing piece downwards. This will move the detachable rod out of the mounting cavity and hollow connecting piece, allowing for maintenance of the support device. To install the support device, simply reverse the above steps. Attached Figure Description

[0015] Figure 1 This is a front view of the overall structure of this utility model;

[0016] Figure 2 This is a top view of the overall structure of this utility model;

[0017] Figure 3 This is a front sectional view of the hollow fastener structure of this utility model;

[0018] Figure 4 This is a front sectional view of the hollow connector and fastener structure of this utility model.

[0019] In the diagram: 1. Hollow fixing component; 2. Hollow connecting component; 3. Fixing component; 4. Moving rod; 5. Fixing plate; 6. Fixing rod; 7. Arc-shaped support plate; 8. Screw; 9. Knob; 10. Limiting screw; 11. Limiting knob; 12. Detachable component; 13. Connecting cavity; 14. Detachable rod; 15. Arc-shaped limiting block; 16. Dual-axis motor; 17. Lead screw; 18. Lead screw seat. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: an arch formwork support device, comprising multiple hollow fixing parts 1 and multiple hollow connecting parts 2. A dual-axis motor 16 is fixedly connected inside the hollow fixing parts 1. Two output ends of the dual-axis motor 16 are respectively fixedly connected to lead screws 17. One end of the lead screw 17 is rotatably connected to the inner side of the hollow fixing part 1. A threaded seat 18 is threaded onto the surface of the lead screw 17. The top and bottom of the threaded seat 18 are slidably connected to the inner side of the hollow fixing part 1. Two moving rods 4 are fixedly connected to the surface of the threaded seat 18. A fixing plate 5 is fixedly connected to one end of the moving rod 4. A fixing rod 6 is fixedly connected to the surface of the fixing plate 5. An arc-shaped support plate 7 is fixedly connected to one end of the fixing rod 6. The surface of the moving rod 4 is fixedly connected to the inside of the hollow fixing part 1. In use, the specific steps are as follows: connect the dual-axis motor 16 to an external power source, and then start the dual-axis motor. The dual-axis motor 16 rotates clockwise, driving the lead screws 17 on both sides to rotate. The threads of the lead screws 17 on both sides are in opposite directions, which allows the lead screw seat 18 on the surface of the lead screw 17 to move in opposite directions through the dual-axis motor 16. This causes the moving rod 4 to move outward of the hollow fixing part 1, which in turn causes the fixing plate 5 to move closer to the template, and finally causes the arc-shaped support plate 7 to move closer to the template until the arc-shaped support plate 7 presses the template tightly. In this way, each arc-shaped support plate 7 can press the template at the corresponding position (the position of the arc-shaped support plate 7 will not block the template window, which is convenient for concrete pouring. The distance between the arc-shaped support plate 7 and the template is less than the length of the lead screw 17, so there will be no situation where the arc-shaped support plate 7 cannot contact the template). When it is necessary to move the arc-shaped support plate 7 away from the template, the above method can be reversed.

[0022] like Figure 1 and Figure 4As shown, a detachable rod 14 is fixedly connected to the top of the hollow fastener 1. Limiting screws 10 are threadedly connected to both sides of the hollow connector 2. A limiting knob 11 is fixedly connected to one end of each limiting screw 10, and an arc-shaped limiting block 15 is threadedly connected to the other end of each limiting screw 10. The inner side of the arc-shaped limiting block 15 contacts the surface of the detachable rod 14. A fastener 3 is fixedly connected to the top of the hollow connector 2. A connecting cavity 13 is opened inside the fastener 3. A screw 8 is threadedly connected to one side of the fastener 3, and a knob 9 is fixedly connected to one end of the screw 8. A threaded through hole is opened at the top of the detachable rod 14. The size of the screw 8 is adapted to the size of the threaded through hole. Rotating knob 9 will cause screw 8 to move outward within the detachable rod 14 until screw 8 is completely removed from the detachable rod 14. Then, by rotating the two limit knobs 11, the limit knobs 11 will cause the limit screw 10 to rotate. The rotation of the limit screw 10 will cause the arc-shaped limit plate to move away from the surface of the detachable rod 14 until it is a certain distance away. Then, the hollow fixing part 1 will move downward, causing the detachable rod 14 to move out of the mounting cavity and the hollow connecting part 2. This allows the support device to be inspected. When the support device needs to be installed, the above method can be reversed.

[0023] like Figure 2 As shown, multiple hollow fixing parts 1 are bolted together with detachable parts 12, which facilitates the connection of multiple support devices.

[0024] Working principle: When in use, the fixing part 3 is fixedly connected to the arch bridge. The arch bridge is existing technology and will not be described in detail. When the detachable rod 14 is installed inside the fixing part 3 and the hollow connecting part 2, the arch bridge can drive multiple support devices to move, which is convenient for supporting the templates in different positions.

[0025] When moving to the position where template support is needed, connect the dual-axis motor 16 to an external power source and start the dual-axis motor 16. The clockwise rotation of the dual-axis motor 16 will drive the lead screws 17 on both sides to rotate. The threads of the lead screws 17 on both sides are opposite in direction, which can drive the lead screw seat 18 on the surface of the lead screw 17 to move in opposite directions through the dual-axis motor 16. This will drive the moving rod 4 to move outward of the hollow fixing part 1, thereby driving the fixing plate 5 to move closer to the template, and finally driving the arc-shaped support plate 7 to move closer to the template until the arc-shaped support plate 7 presses the template tightly. By using the above method, each arc-shaped support plate 7 can press the template at the corresponding position, which can improve the pouring quality. When it is necessary to move the arc-shaped support plate 7 away from the template, simply reverse the above method. After retracting the arc-shaped support plate 7, the support device is moved to the next template position that needs support under the action of the arch bridge.

[0026] After a certain period of use, the support device will wear out and require maintenance. Rotating knob 9 will cause the screw 8 to move outwards within the detachable rod 14 until it is completely removed. Then, rotating the two limit knobs 11 will cause the limit screw 10 to rotate, which will move the arc-shaped limit plate away from the surface of the detachable rod 14 until it reaches a certain distance. Finally, the hollow fixing part 1 will move downwards, causing the detachable rod 14 to move out of the mounting cavity and hollow connecting part 2. This allows for maintenance of the support device. When the support device needs to be installed, the process can be reversed.

[0027] The operation of the above support devices can improve the quality of irrigation and facilitate the maintenance of the support devices.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, fabric, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, fabric, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A support device for an arch formwork, comprising multiple hollow fixing parts (1) and multiple hollow connecting parts (2), characterized in that: A dual-axis motor (16) is fixedly connected inside the hollow fixing component (1). A lead screw (17) is fixedly connected to each of the two output ends of the dual-axis motor (16). One end of the lead screw (17) is rotatably connected to the inner side of the hollow fixing component (1). A lead screw seat (18) is threadedly connected to the surface of the lead screw (17). The top and bottom of the lead screw seat (18) are slidably connected to the inner side of the hollow fixing component (1). Two moving rods (4) are fixedly connected to the surface of the lead screw seat (18). A fixing plate (5) is fixedly connected to one end of the moving rod (4). A fixing rod (6) is fixedly connected to the surface of the fixing plate (5). An arc-shaped support plate (7) is fixedly connected to one end of the fixing rod (6). The surface of the moving rod (4) is fixedly connected to the inside of the hollow fixing component (1).

2. The arch formwork support device according to claim 1, characterized in that: The hollow fastener (1) has a detachable rod (14) fixedly connected to its top, and the hollow connector (2) has limit screws (10) threadedly connected to both sides.

3. The arch formwork support device according to claim 2, characterized in that: One end of the limiting screw (10) is fixedly connected to a limiting knob (11), and the other end of the limiting screw (10) is threadedly connected to an arc-shaped limiting block (15). The inner side of the arc-shaped limiting block (15) is in contact with the surface of the detachable rod (14).

4. The arch formwork support device according to claim 1, characterized in that: The hollow connector (2) is fixedly connected to a fixing member (3) at the top. The fixing member (3) has a connecting cavity (13) inside. A screw (8) is threadedly connected to one side of the fixing member (3). A knob (9) is fixedly connected to one end of the screw (8).

5. The arch formwork support device according to claim 2, characterized in that: The detachable rod (14) has a threaded through hole at the top, and the size of the screw (8) is adapted to the size of the threaded through hole.

6. The arch formwork support device according to claim 1, characterized in that: A detachable component (12) is bolted between multiple hollow fasteners (1).

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