Inverted arch anti-floating support

Abstract

This utility model belongs to the technical field of construction equipment and provides an anti-floating support for an invert arch. The anti-floating support includes a support frame, several adjustable legs, and several telescopic clamping assemblies. The support frame spans a trestle bridge, with its upper end abutting against the top of the tunnel. Several support legs are located at the lower end of the support frame, positioned on both sides of the trestle bridge. The adjustable legs correspond one-to-one with the support legs and abut against the invert arch formwork, sliding freely along the height direction. The telescopic clamping assemblies correspond one-to-one with the support legs and include an upper clamping plate, a lower clamping plate, and a telescopic drive assembly. The upper clamping plate connects to the support leg and is adapted to abut against the upper side of the trestle bridge; the lower clamping plate connects to the adjustable leg and is adapted to abut against the lower side of the trestle bridge. The two ends of the telescopic drive assembly are connected to the upper and lower clamping plates, respectively. The anti-floating support for an invert arch provided by this utility model is simpler and more convenient to move.

Description

Technical Field

[0001] This utility model belongs to the field of construction equipment technology, specifically relating to an anti-floating support for an arch. Background Technology

[0002] During the concrete pouring of the invert arch layer, since the invert arch formwork is not fixed and the concrete has a certain fluidity and impact, pouring a large volume of concrete can cause the invert arch formwork to float and run away, which seriously affects the quality of the formed invert arch.

[0003] A common method for reinforcing the invert arch is to install a support frame on the upper side of the invert arch, with the upper end of the support frame resting against the top of the tunnel and the lower end resting against the invert arch formwork, in order to prevent the invert arch formwork from floating.

[0004] However, using the existing support frame to support the invert arch formwork is cumbersome to move after the pouring is completed. The support frame needs to be disassembled and removed first, and then each part needs to be transported to the next work station by hoisting or other transportation equipment, and then assembled and set up. The process is cumbersome, time-consuming and labor-intensive. Utility Model Content

[0005] This utility model provides an anti-floating support for an inverted arch, which aims to solve the technical problems described in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: to provide an anti-floating support for an inverted arch, comprising:

[0007] A support frame is installed across a trestle bridge, with its upper end designed to abut against the top of the tunnel; the lower end of the support frame is provided with several support legs, which are respectively located on both sides of the trestle bridge.

[0008] Several adjustable legs, corresponding one-to-one with the supporting legs, are used to abut against the arch formwork. The adjustable legs slide in conjunction with the supporting legs and have the freedom to slide along the height direction.

[0009] A plurality of telescopic clamping assemblies are provided, each corresponding to one of the supporting legs. Each telescopic clamping assembly includes an upper clamping plate, a lower clamping plate, and a telescopic drive assembly. The upper clamping plate is connected to the supporting leg and is adapted to abut against the upper side of the trestle. The lower clamping plate is connected to the adjustable support leg and is adapted to abut against the lower side of the trestle. The two ends of the telescopic drive assembly are respectively connected to the upper clamping plate and the lower clamping plate.

[0010] When the telescopic drive assembly retracts, the support frame moves downward and separates from the bottom of the tunnel until the upper clamping plate abuts against the upper side of the trestle; the adjusting leg moves upward and against the arch template until the lower clamping plate abuts against the lower side of the trestle, clamping the arch anti-floating bracket on the trestle and moving with the trestle.

[0011] In one possible implementation of the anti-floating support for the arch provided by this utility model, the support frame is provided with at least four support legs, and the four support legs are respectively located on both sides of the trestle bridge.

[0012] In one possible implementation of the anti-floating support for the arch provided by this utility model, a guide hole is provided at the bottom of the support leg, and a guide rod is fixedly provided at the top of the adjustable support leg. The guide rod is slidably engaged with the guide hole, and the guide hole is an irregularly shaped hole.

[0013] In one possible implementation of the anti-floating support for the arch provided by this utility model, the telescopic clamping assembly further includes two buffer pads, which are respectively disposed on the lower side of the upper clamping plate and the upper side of the lower clamping plate, and are respectively connected to the upper clamping plate and the lower clamping plate.

[0014] In one possible implementation of the anti-floating support for the arch provided by this utility model, the telescopic clamping assembly further includes a guide plate, which is connected to the upper clamping plate or the lower clamping plate, and the side of the guide plate slides in cooperation with the side of the trestle.

[0015] In one possible implementation of the anti-floating support for the inverted arch provided by this utility model, the telescopic drive component is a hydraulic telescopic component, a pneumatic telescopic component, or an electric telescopic component.

[0016] In one possible implementation of the anti-floating support for the arch provided by this utility model, the telescopic clamping assembly further includes a pressure sensor, which is used to detect the pressure between the telescopic clamping assembly and the upper clamping plate or the lower clamping plate.

[0017] In one possible implementation of the anti-floating support for the inverted arch provided by this utility model, the top of the support frame is provided with several buffer blocks, all of which are connected to the support frame, and the top of the buffer blocks is shaped to match the top of the tunnel.

[0018] The beneficial effects of the anti-floating support for the invert arch provided by this utility model are as follows: Compared with the prior art, the anti-floating support for the invert arch provided by this utility model, in the supported state, the telescopic component extends to support the upper and lower clamping plates, the upper and lower clamping plates separate from the trestle, the top of the support frame abuts against the top of the tunnel, and the adjustable outriggers abut against the invert arch template, supporting the invert arch template; after the concrete has initially set, when it is necessary to dismantle and move the support, the telescopic drive component retracts, the support frame moves downward and separates from the bottom of the tunnel until the upper clamping plate abuts against the upper side of the trestle; the adjustable outriggers move upward and abut against the invert arch template until the lower clamping plate abuts against the lower side of the trestle, clamping the anti-floating support for the invert arch onto the trestle, so that it can be moved together with the trestle without the need to disassemble and assemble the support, making the process simpler. Attached Figure Description

[0019] Figure 1 A three-dimensional structural diagram of the anti-floating support for the inverted arch provided in this embodiment of the utility model;

[0020] Figure 2 for Figure 1 Enlarged view of part A in the image;

[0021] Figure 3 This is a front view structural diagram of the anti-floating support for the inverted arch provided in an embodiment of the present utility model.

[0022] Figure 4 This is a front view structural diagram of the anti-floating support for the inverted arch provided in an embodiment of the present utility model in its unsupported state;

[0023] Explanation of reference numerals in the attached figures:

[0024] 10. Support frame; 11. Support leg; 12. Buffer block; 20. Adjustable support leg; 21. Guide rod;

[0025] 31. Upper clamping plate; 32. Lower clamping plate; 33. Telescopic drive assembly; 34. Buffer pad;

[0026] 35. Guide plate; 36. Pressure sensor; 40. Trestle; 50. Inverted arch formwork. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is actually illustrative only and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0031] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0032] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0033] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0034] Please refer to the following: Figures 1 to 4 The anti-floating support for the arch provided by this utility model will now be described. The anti-floating support for the invert arch includes a support frame 10, several adjustable legs 20, and several telescopic clamping assemblies. The support frame 10 spans the trestle 40 and its upper end is used to abut against the top of the tunnel. The lower end of the support frame 10 is provided with several support legs 11, which are respectively located on both sides of the trestle 40. Several adjustable legs 20 correspond one-to-one with support legs 11 and are used to abut against the invert arch template 50. The adjustable legs 20 and support legs 11 are slidably engaged and have the freedom to slide along the height direction. Several telescopic clamping assemblies correspond one-to-one with support legs 11. The telescopic clamping assembly includes an upper clamping plate 31, a lower clamping plate 32, and a telescopic drive assembly 33. The upper clamping plate 31 is connected to the support leg 11 and is adapted to abut against the upper side of the trestle 40. The lower clamping plate 32 is connected to the adjustable legs 20 and is adapted to abut against the lower side of the trestle 40. The two ends of the telescopic drive assembly 33 are respectively connected to the upper clamping plate 31 and the lower clamping plate 32.

[0035] When the telescopic drive assembly 33 retracts, the support frame 10 moves downward and separates from the bottom of the tunnel until the upper clamping plate 31 abuts against the upper side of the trestle bridge 40; the adjusting leg 20 moves upward and against the invert arch template 50 until the lower clamping plate 32 abuts against the lower side of the trestle bridge 40, clamping the invert arch anti-floating support onto the trestle bridge 40 and moving with the trestle bridge 40.

[0036] It should be noted that the trestle 40 is an existing self-propelled trestle 40, capable of moving and traveling within the tunnel. The support frame 10 spans the trestle 40 and provides a passage for vehicles. The trestle 40 has railings on its sides, and the upper clamping plate 31 can abut against the railings.

[0037] Adjusting the sliding engagement between the outrigger 20 and the support leg 11 can effectively constrain the direction of pressure and prevent the telescopic drive assembly 33 from bearing lateral loads.

[0038] Furthermore, lateral support legs can be installed on the side of the adjustable support leg 20 to transfer pressure to the entire inverted arch formwork 50, evenly pressing down on the inverted arch formwork 50, further preventing the inverted arch formwork 50 from floating or running away.

[0039] The work process is as follows:

[0040] like Figure 3 As shown, in the supported state, the telescopic component extends to support the upper clamping plate 31 and the lower clamping plate 32. The upper clamping plate 31 and the lower clamping plate 32 are separated from the trestle 40. The top of the support frame 10 abuts against the top of the tunnel, and the adjustable outrigger 20 abuts against the invert arch template 50, supporting the invert arch template 50.

[0041] like Figure 4As shown, after the concrete has initially set, when it is necessary to remove the movable support, the telescopic drive component 33 retracts, the support frame 10 moves downward and separates from the bottom of the tunnel until the upper clamping plate 31 abuts against the upper side of the trestle bridge 40; the adjusting leg 20 moves upward and against the invert arch template 50 until the lower clamping plate 32 abuts against the lower side of the trestle bridge 40, clamping the invert arch anti-floating support onto the trestle bridge 40.

[0042] After the anti-floating support moves to the next work position along with the trestle 40 and the invert arch formwork 50 is laid, the telescopic drive component 33 extends. The support frame 10 and the upper clamping plate 31 are first erected on the trestle 40 under their own weight. The adjustable outriggers 20 and the lower clamping plate 32 move downward until they abut against the invert arch formwork 50. Then, the support frame 10 and the upper clamping plate 31 move upward under the drive of the telescopic drive component 33 until the support frame 10 abuts against the top of the tunnel, completing the support operation of the invert arch formwork 50.

[0043] The beneficial effects of the anti-floating support for the invert arch provided by this utility model are as follows: Compared with the prior art, the anti-floating support for the invert arch provided by this utility model, in the supported state, the telescopic component extends to support the upper clamping plate 31 and the lower clamping plate 32. The upper clamping plate 31 and the lower clamping plate 32 are separated from the trestle bridge 40. The top of the support frame 10 abuts against the top of the tunnel, and the adjusting leg 20 abuts against the invert arch template 50, supporting the invert arch template 50. After the concrete has initially set, when it is necessary to remove and move the support, the telescopic drive component 33 retracts, the support frame 10 moves downward and separates from the bottom of the tunnel until the upper clamping plate 31 abuts against the upper side of the trestle bridge 40. The adjusting leg 20 moves upward and abuts against the invert arch template 50 until the lower clamping plate 32 abuts against the lower side of the trestle bridge 40, clamping the anti-floating support for the invert arch onto the trestle bridge 40. It can then be moved along with the trestle bridge 40 without the need to disassemble and assemble the support, making the process simpler.

[0044] like Figure 1 and Figure 2 As shown, in a specific embodiment of the anti-floating support for the arch provided in this utility model, the support frame 10 is provided with at least four support legs 11, and the four support legs 11 are respectively provided on both sides of the trestle bridge 40.

[0045] Specifically, each side of the trestle 40 is equipped with two supporting legs 11.

[0046] It should be noted that the number of support legs 11 is set according to the length of the support frame 10 in the tunnel extension direction to ensure the support effect.

[0047] like Figure 1 and Figure 2As shown, in a specific embodiment of the anti-floating support for the arch provided in this utility model, the bottom of the support leg 11 is provided with a guide hole, and the top of the adjustable support leg 20 is fixedly provided with a guide rod 21. The guide rod 21 is slidably engaged with the guide hole, and the guide hole is an irregularly shaped hole to prevent the adjustable support leg 20 from rotating relative to the support leg 11.

[0048] It should be noted that guide holes can also be formed on the adjusting leg 20, and a corresponding guide rod 21 can be provided on the supporting leg 11. The guide holes are non-circular holes such as elliptical holes, rectangular holes, and square holes, to prevent the adjusting leg 20 from rotating relative to the supporting leg 11.

[0049] like Figure 1 and Figure 2 As shown, in a specific embodiment of the anti-floating support for the arch provided in this utility model, the telescopic clamping assembly further includes two buffer pads 34, which are respectively disposed on the lower side of the upper clamping plate 31 and the upper side of the lower clamping plate 32, and are respectively connected to the upper clamping plate 31 and the lower clamping plate 32.

[0050] Specifically, the buffer pad 34 is a pair of rubber pads, but it can also be a silicone pad, a plastic pad, etc. On the one hand, it avoids hard collisions that could damage the upper clamping plate 31, the lower clamping plate 32, or the bridge 40; on the other hand, it can effectively increase friction and increase stability during clamping.

[0051] like Figure 1 and Figure 2 As shown, in a specific embodiment of the anti-floating support for the arch provided in this utility model, the telescopic clamping assembly further includes a guide plate 35, which is connected to the upper clamping plate 31 or the lower clamping plate 32, and the side of the guide plate 35 slides in cooperation with the side of the trestle 40.

[0052] Specifically, the guide plate 35 is connected to the lower clamping plate 32, and during the movement of the lower clamping plate 32, it always maintains partial overlap with the trestle 40 to play a guiding role and prevent the anti-floating support of the inverted arch from tilting.

[0053] like Figure 1 and Figure 2 As shown, in a specific embodiment of the anti-floating support for the arch provided in this utility model, the telescopic drive component 33 is a hydraulic telescopic component, a pneumatic telescopic component, or an electric telescopic component.

[0054] Preferably, the telescopic drive assembly 33 is a hydraulic cylinder, which provides more stable and sufficient pressure.

[0055] like Figure 1 and Figure 2As shown, in a specific embodiment of the anti-floating support for the arch provided in this utility model, the telescopic clamping assembly further includes a pressure sensor 36, which is used to detect the pressure between the telescopic clamping assembly and the upper clamping plate 31 or the lower clamping plate 32.

[0056] Preferably, the pressure sensor 36 uses an existing device for detecting contact pressure and is located between the telescopic drive assembly 33 and the upper clamping plate 31 to detect whether the pressure applied by the anti-floating support of the inverted arch to the inverted arch template 50 reaches the specified value.

[0057] In addition, the pressure sensor 36 can also be a pressure gauge to detect the oil pressure in the hydraulic cylinder, thereby indirectly detecting the pressure exerted by the anti-floating support of the invert arch on the invert arch template 50.

[0058] like Figure 1 and Figure 2 As shown, in a specific embodiment of the anti-floating support for the inverted arch provided in this utility model, the top of the support frame 10 is provided with a plurality of buffer blocks 12, all of which are connected to the support frame 10, and the top of the buffer blocks 12 is shaped to match the top of the tunnel.

[0059] Specifically, the buffer block 12 corresponds one-to-one with the support leg 11 and is located on top of the support leg 11. The buffer block 12 is made of rubber, silicone, polyurethane, etc., and is used to prevent damage to the tunnel top.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A inverted arch anti-floating support, characterized in that, include: A support frame is installed across a trestle bridge, with its upper end designed to abut against the top of the tunnel; the lower end of the support frame is provided with several support legs, which are respectively located on both sides of the trestle bridge. Several adjustable legs, corresponding one-to-one with the supporting legs, are used to abut against the arch formwork. The adjustable legs slide in conjunction with the supporting legs and have the freedom to slide along the height direction. A plurality of telescopic clamping assemblies are provided, each corresponding to one of the supporting legs. Each telescopic clamping assembly includes an upper clamping plate, a lower clamping plate, and a telescopic drive assembly. The upper clamping plate is connected to the supporting leg and is adapted to abut against the upper side of the trestle. The lower clamping plate is connected to the adjustable support leg and is adapted to abut against the lower side of the trestle. The two ends of the telescopic drive assembly are respectively connected to the upper clamping plate and the lower clamping plate. When the telescopic drive assembly retracts, the support frame moves downward and separates from the bottom of the tunnel until the upper clamping plate abuts against the upper side of the trestle. The adjustable support leg moves upward and engages with the arch template until the lower clamping plate abuts against the underside of the trestle, clamping the arch anti-floating support onto the trestle and moving with it.

2. The anti-floating support for the inverted arch as described in claim 1, characterized in that, The support frame is provided with at least four support legs, which are respectively located on both sides of the trestle.

3. The anti-floating support for the inverted arch as described in claim 1, characterized in that, The bottom of the support leg is provided with a guide hole, and the top of the adjustable support leg is fixedly provided with a guide rod. The guide rod is slidably engaged with the guide hole, and the guide hole is an irregularly shaped hole.

4. The anti-floating support for the inverted arch as described in claim 1, characterized in that, The telescopic clamping assembly also includes two buffer pads, which are respectively disposed on the lower side of the upper clamping plate and the upper side of the lower clamping plate, and are respectively connected to the upper clamping plate and the lower clamping plate.

5. The anti-floating support for the inverted arch as described in claim 1, characterized in that, The telescopic clamping assembly also includes a guide plate, which is connected to the upper clamping plate or the lower clamping plate, and the side of the guide plate slides in conjunction with the side of the trestle.

6. The anti-floating support for the inverted arch as described in claim 1, characterized in that, The telescopic drive assembly is a hydraulic telescopic component, a pneumatic telescopic component, or an electric telescopic component.

7. The anti-floating support for the inverted arch as described in claim 1, characterized in that, The telescopic clamping assembly also includes a pressure sensor, which is used to detect the pressure between the telescopic clamping assembly and the upper clamping plate or the lower clamping plate.

8. The anti-floating support for the inverted arch as described in claim 1, characterized in that, The top of the support frame is provided with several buffer blocks, and the buffer blocks are all connected to the support frame. The top of the buffer blocks is shaped to match the top of the tunnel.

Images