Vacuum preloading sealing film pressing device

Abstract

The utility model discloses a vacuum preloading sealing film pressing device which comprises a support, the support is an inverted trapezoidal frame matched with a sealing groove in shape, a connecting seat used for being connected with an excavator arm of an excavator is arranged at the top of the support, and panels cover the bottom face of the support and two inverted trapezoidal inclined faces. The excavator drives the support matched with the sealing ditch in shape and the panels on the bottom face of the support and the two inverted trapezoidal inclined faces to press the film, the power is far larger than that of manual film stepping, the efficiency is high, the film can be pressed into deeper soil, and the sealing effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum pre-pressing construction equipment, in particular to a vacuum pre-pressing sealing film pressing device. Background Art

[0002] The vacuum preloading method relies on a vacuum pump to remove gas from the reinforcement area, thereby applying atmospheric pressure as a load to the soft foundation. Therefore, ensuring a sealed state within the reinforcement area to maintain a high vacuum level has always been a key issue during construction. Sealing membranes and sealing trenches play a key role in the vacuum preloading sealing system. Currently, the membranes used in China are mostly made of polyethylene (PE) or polyvinyl chloride (PVC). Sealing trenches are trenches dug to a certain depth around the reinforcement area to bury the sealing membrane. Therefore, the quality of the fit between the sealing membrane and the sealing trench is a key factor in determining sealing performance. Improving the film pressing process can better maintain the vacuum level and ensure construction quality.

[0003] Currently, the sealing membrane is usually laid by workers stepping on the membrane directly. Due to the uncertainty of construction workers and on-site environment, there are the following technical defects:

[0004] 1. Management is difficult. Construction workers are usually casual when stepping on the membrane. They cannot be sure whether the membrane is placed at the designed depth. When they step back, they are likely to bring out the stepped sealing membrane.

[0005] 2. Local uneven treatment: The edge of the sealing film may be uneven if the film is stepped on, resulting in insufficient sealing performance at the edge of the sealing film, which is prone to water leakage or leakage.

[0006] 3. Damage to the sealing membrane. The membrane-stepping process requires stepping the sealing membrane into the sealing ditch or silt soft soil. The hard sole of the shoe may cause damage to the sealing membrane.

[0007] 4. It is difficult to meet special environmental requirements. In some special circumstances, such as when there is water on the surface and workers cannot operate, normal construction may not be possible;

[0008] 5. The construction efficiency is low. When stepping on the membrane, you need to advance step by step, which makes it difficult to improve work efficiency. Utility Model Content

[0009] In view of the problems existing in the prior art, the purpose of the present invention is to provide a vacuum pre-pressing sealing film pressing device.

[0010] In order to solve the above problems, the present invention adopts the following technical solutions:

[0011] A vacuum pre-pressed sealing film pressing device includes a bracket, which is an inverted trapezoidal frame matching the shape of the sealing groove. A connecting seat for connecting to the excavator arm of an excavator is provided on the top of the bracket, and the bottom surface of the bracket and two inverted trapezoidal inclined surfaces are covered with panels.

[0012] Preferably, a connecting rod is provided extending outward from one end of the bracket, and a laser ranging sensor facing the ground is provided on the connecting rod, and the laser ranging sensor is used to detect the distance between itself and the ground. The laser ranging sensor is electrically connected to a control module, and the control module is electrically connected to a display screen, and the control module is used to receive data detected by the laser ranging sensor and control the display screen.

[0013] Preferably, a tilt sensor is provided on the top of the bracket, and the tilt sensor is used to detect the tilt angle of the bracket. The tilt sensor is electrically connected to the control module, and the control module is used to receive data detected by the tilt sensor and control the display screen.

[0014] Preferably, the display screen is arranged in the excavator cab.

[0015] Preferably, the panel is evenly distributed with a plurality of through holes penetrating the panel.

[0016] Preferably, all edges of the panel in contact with the sealing membrane are provided with rounded corners.

[0017] Preferably, the edge where the bottom surface of the bracket meets the two inverted trapezoidal inclined surfaces is arranged in an arc shape.

[0018] Preferably, a roller is provided on the edge where the bottom surface of the bracket meets the two inverted trapezoidal inclined surfaces.

[0019] Preferably, the roller is rotatably connected to the bracket.

[0020] Preferably, the cross section of the bracket is an inverted trapezoid that matches the cross-sectional shape of the sealing groove, and its length is 3-5m.

[0021] Beneficial effects of the utility model

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] The utility model uses an excavator to drive a bracket that matches the shape of the sealing groove, as well as panels on the bottom surface of the bracket and two inverted trapezoidal inclined surfaces to press the film. The power is much greater than manual film pressing, the efficiency is high, and the film can be pressed into deeper soil, with a good sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the exploded parts of the present utility model;

[0026] Figure 3 This is a diagram of the use state of the utility model;

[0027] Figure 4 It is a side view of the utility model when in use;

[0028] Figure 5 for Figure 3 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of this utility model, it should be noted that the terms "upper / lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "set / mounted," "sleeved," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0032] See also Figure 1-5 The utility model provides a technical solution: a vacuum pre-pressed sealing film pressing device, comprising a bracket 1, which is an inverted trapezoidal frame matching the shape of the sealing groove, and a connecting seat 2 for connecting the excavator arm of the excavator is provided on the top of the bracket 1, and the bottom surface of the bracket 1 and the two inverted trapezoidal inclined surfaces are covered with a panel 3.

[0033] During specific use, the excavator arm is connected to the connecting seat 2 on the top of the bracket 1, the film pressing device is moved to the predetermined position, and a sealing film of corresponding length is reserved in the sealing groove according to the designed burial depth. The bracket 1 is pressed down by the excavator, and the bottom surface of the bracket 1 and the panels 3 on the two inverted trapezoidal slopes press the sealing film tightly into the sealing groove. After that, the excavator arm is operated to lift the bracket 1 and the excavator is operated to move horizontally along the extension direction of the sealing groove. The above steps are repeated to achieve the compression of the sealing film in the sealing groove.

[0034] The utility model uses an excavator to drive a bracket 1 that matches the shape of the sealing groove and panels 3 on the bottom surface of the bracket 1 and two inverted trapezoidal slopes to press the film. The power is much greater than manual film pressing, the efficiency is high, and the film can be pressed into deeper soil, with a good sealing effect.

[0035] Furthermore, a connecting rod 4 is provided at one end of the bracket 1, on which a laser distance sensor 5 facing the ground is provided. The laser distance sensor 5 is used to detect the distance between itself and the ground. The laser distance sensor 5 is electrically connected to a control module, which is electrically connected to a display screen. The control module is used to receive data detected by the laser distance sensor 5 and control the display screen display. When laminating, the bracket 1 is first lowered until the panel 3 on the bottom of the bracket 1 fits the ground film surface. The laser distance sensor 5 is used to measure the distance between the laser distance sensor 5 and the ground film surface for the first time. The distance before laminating is displayed on the display screen. The excavator is operated to press the bracket 1 down to laminating. After the pressing is completed, the laser distance sensor 5 is used again to measure the distance between the laser distance sensor 5 and the ground film surface after laminating. The difference between the two distances is the pressing depth, so that the effective laminating depth can be visually checked to ensure that the laminating depth meets the design requirements, has good controllability, and improves the construction quality of the sealing film laminating.

[0036] Furthermore, a tilt sensor 6 is provided on the top of the bracket 1. The tilt sensor 6 is used to detect the tilt angle of the bracket 1. The tilt sensor 6 is electrically connected to a control module, which is used to receive data detected by the tilt sensor 6 and control the display screen. During film pressing, the bracket 1 is lowered until the panel 3 on the bottom of the bracket 1 is in contact with the ground film surface. The tilt angle of the bracket 1 is first detected by the tilt sensor 6 and displayed on the display. The angle of the bracket 1 is adjusted by operating the excavator until the tilt angle of the bracket 1 is 0°. The bracket 1 is then pressed down to press the film, thereby ensuring the construction quality of the sealing film pressing and standardizing the sealing film pressing operation during the vacuum preloading construction process.

[0037] Furthermore, the display screen is arranged in the excavator cab, so that the operator can view it in real time.

[0038] Furthermore, the panel 3 is evenly distributed with a number of through holes 31 penetrating the panel 3 , which facilitates the discharge of water accumulated on the surface of the sealing film and the air between the sealing film and the panel 3 during film pressing, thereby ensuring the quality of film pressing.

[0039] Furthermore, all edges of the panel 3 that are in contact with the sealing film are provided with rounded corners 32 to prevent the sealing film from being caught on the edge of the panel 3 during film pressing and causing damage to the sealing film.

[0040] Furthermore, the edge where the bottom surface of the bracket 1 meets the two inverted trapezoidal slopes is arc-shaped to prevent the edge where the bottom surface of the bracket 1 meets the two inverted trapezoidal slopes from scratching the sealing film during film pressing.

[0041] Furthermore, a roller 7 is provided on the edge where the bottom surface of the bracket 1 meets the two inverted trapezoidal slopes to reduce the sliding friction between the sealing film and the edge where the bottom surface of the bracket 1 meets the two inverted trapezoidal slopes, thereby protecting the sealing film and reducing the possibility of damaging the sealing film during construction.

[0042] Specifically, the roller 7 is rotatably connected to the bracket 1 .

[0043] Furthermore, the cross-section of the bracket 1 is an inverted trapezoid that matches the cross-sectional shape of the sealing groove, and its length is 3-5m. A sealing film of 3-5m in length can be pressed in at one time, thereby improving construction efficiency. Of course, while ensuring that the overall weight of the film pressing device can be lifted by the excavator and the overall stability of the bracket 1, the length of the bracket 1 can be adjusted according to actual conditions. The preferred length of the bracket 1 of the present invention is 3-5m. The bracket structure of this specification is stable and easy to turnover.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0045] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum pre-pressing sealing film laminating device, characterized in that: The invention comprises a bracket (1), wherein the bracket (1) is an inverted trapezoidal frame matching the shape of the sealing groove, a connecting seat (2) for connecting to the excavator arm of an excavator is provided on the top of the bracket (1), and the bottom surface of the bracket (1) and two inverted trapezoidal inclined surfaces are covered with panels (3).

2. A vacuum pre-pressing sealing film laminating device according to claim 1, characterized in that: One end of the bracket (1) is provided with a connecting rod (4) extending outward, and a laser distance sensor (5) facing the ground is provided on the connecting rod (4), and the laser distance sensor (5) is used to detect the distance between itself and the ground, and the laser distance sensor (5) is electrically connected to a control module, and the control module is electrically connected to a display screen, and the control module is used to receive data detected by the laser distance sensor (5) and control the display screen to display.

3. The vacuum pre-pressing sealing film laminating device according to claim 2, characterized in that: A tilt sensor (6) is provided on the top of the bracket (1), and the tilt sensor (6) is used to detect the tilt angle of the bracket (1). The tilt sensor (6) is electrically connected to a control module, and the control module is used to receive data detected by the tilt sensor (6) and control the display screen to display.

4. A vacuum pre-pressing sealing film laminating device according to any one of claims 2 or 3, characterized in that: The display screen is arranged in the excavator cab.

5. The vacuum pre-pressing sealing film laminating device according to claim 1, characterized in that: The panel (3) is evenly distributed with a plurality of through holes (31) penetrating the panel (3).

6. The vacuum pre-pressing sealing film laminating device according to claim 1, characterized in that: All edges of the panel (3) in contact with the sealing membrane are provided with rounded corners (32).

7. The vacuum pre-pressing sealing film laminating device according to claim 1, characterized in that: The bottom surface of the bracket (1) and the edges where the two inverted trapezoidal inclined surfaces meet are arranged in an arc shape.

8. The vacuum pre-pressing sealing film laminating device according to claim 1, characterized in that: A roller (7) is provided on the edge where the bottom surface of the bracket (1) meets the two inverted trapezoidal inclined surfaces.

9. The vacuum pre-pressing sealing film laminating device according to claim 8, characterized in that: The roller (7) is rotatably connected to the bracket (1).

10. The vacuum pre-pressing sealing film laminating device according to claim 1, characterized in that: The cross section of the bracket (1) is an inverted trapezoid that matches the cross-sectional shape of the sealing groove, and its length is 3-5m.

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