Pile foundation pit wall supporting mechanism

Abstract

The utility model relates to the technical field of pile foundation pit wall supporting, and discloses a pile foundation pit wall supporting mechanism which comprises a supporting plate, a cavity is formed in the supporting plate, a motor is fixedly connected to the inner wall of the top side of the cavity, a fluted disc is fixedly connected to an output shaft of the motor, and five transmission rods are slidably connected to the outer side of the supporting plate. The supporting plates are arranged, during use, the supporting plate is placed at the bottom of a foundation pit, a motor generates driving force and drives a screw rod to rotate after transmission, the screw rod rotates to drive a transmission rod to move towards the outer side, the transmission rod drives the supporting plates to move towards the outer side, and after the multiple supporting plates are matched with one another to make contact with the pit wall, the supporting plate is driven to rotate. By means of the structure, soil on the pit wall can be effectively supported and fixed, even if the soil is in a loose state in rainy and snowy days, the landslide phenomenon can be effectively avoided, and therefore reworking caused by reburying is effectively avoided, time is saved, and meanwhile the construction cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of pile foundation pit wall support, and in particular to a pile foundation pit wall support mechanism. Background Art

[0002] The foundation pit is a pit dug at the design location of the foundation according to the base elevation and the plane size of the foundation. Before excavation, the excavation plan should be determined based on geological and hydrological data and the situation of nearby buildings on site, and waterproofing and drainage work should be done. If the excavation is not deep, the slope can be used to stabilize the slope, and the slope size is determined according to relevant construction regulations. For deep excavations and nearby buildings, the foundation pit wall support method and shotcrete wall protection method can be used. Large foundation pits can even use underground continuous walls and column-type bored pile interlocking methods to prevent the outer soil layer from collapsing; if there is no impact on nearby buildings, the well point method can be used to lower the groundwater level and use slope open excavation; in cold areas, natural cold air freezing method can be used for excavation, etc.

[0003] However, in actual applications, most of the existing foundation pits are affected by rain and snow, and the soil on the side walls will become loose, which will inevitably lead to landslides. Not only will the foundation pit be reburied, but the foundation pit will also need to be excavated again, which will waste a lot of time and increase construction costs.

[0004] Therefore, those skilled in the art provide a pile foundation pit wall supporting mechanism to solve the problems raised in the above background technology. Utility Model Content

[0005] In order to solve the problem mentioned in the above background technology that most foundation pits are affected by rain and snow, the soil on the side walls will become loose, which will inevitably lead to landslides, not only causing the foundation pit to be reburied, but also requiring excavation of the foundation pit again, wasting a lot of time and also leading to an increase in construction costs, the present application provides a pile foundation pit wall support mechanism.

[0006] A pile foundation pit wall support mechanism provided in the present application adopts the following technical solution: it includes a support plate, a cavity is opened inside the support plate, a motor is fixedly connected to the inner wall of the top side of the cavity, the output shaft of the motor is fixedly connected to a gear plate, five transmission rods are slidably connected to the outer side of the support plate, the inner centers of the five transmission rods are all spirally connected to spiral rods, the inner ends of the five spiral rods are all fixedly connected to bevel gears, the five bevel gears are all meshingly connected to the gear plate, and the outer ends of the five transmission rods are all fixedly connected to the support plate.

[0007] Preferably, the inner walls of the five support plates are fixedly connected with a plurality of arc-shaped placement boxes, the plurality of arc-shaped placement boxes are on the same horizontal plane, and the inner walls of two adjacent arc-shaped placement boxes are slidably connected with the same arc-shaped reinforcement rib.

[0008] Preferably, fixing bolts are threadedly connected to the inner sides of the plurality of arc-shaped placement boxes.

[0009] Preferably, the five drive rods are all designed in a rectangular shape.

[0010] Preferably, a plurality of hemispheres are fixedly connected to the bottom side of the toothed disc, and the plurality of hemispheres are all in contact with the inner wall of the bottom side of the support plate.

[0011] In summary, the present application includes the following beneficial technical effects:

[0012] 1. By providing the support plate, when in use, the support plate is placed at the bottom of the foundation pit. The driving force generated by the motor is transmitted through the transmission to make the screw rod rotate. The rotation of the screw rod drives the drive rod to move outward, and the drive rod drives the support plate to move outward. After the plurality of support plates cooperate with each other and contact the pit wall, the soil of the pit wall can be effectively supported and fixed. Even when the soil is loose in rainy or snowy weather, the landslide phenomenon can be effectively avoided, thereby effectively avoiding the rework caused by re-burial, saving time and reducing the construction cost.

[0013] 2. By providing the arc-shaped reinforcing ribs, after the support plate contacts the pit wall, the plurality of arc-shaped reinforcing ribs cooperate with each other to fix the support plate again, thereby improving the stability of the support plate during support and fixing, and avoiding the deformation of the support plate caused by the excessive pressure exerted by the soil of the pit wall on the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a left sectional structure schematic diagram of a pile foundation pit wall support mechanism in an embodiment of the present application;

[0015] Figure 2 is a right sectional structure schematic diagram of a pile foundation pit wall support mechanism in an embodiment of the present application;

[0016] Figure 3 is a Figure 1 magnified structure schematic diagram of part A in a pile foundation pit wall support mechanism in an embodiment of the present application.

[0017] Description of the reference numerals: 1, support plate; 2, motor; 3, toothed disc; 4, drive rod; 5, screw rod; 6, bevel gear; 7, support plate; 8, arc-shaped placement box; 9, arc-shaped reinforcing rib; 10, fixing bolt; 11, hemisphere. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following Figures 1-3 is a further detailed description of the present application with reference to the attached

[0019] It should be noted that the attached drawings are schematic and not drawn to scale. For the sake of clarity and convenience in the figures, the relative sizes and proportions of the parts shown in the figures are exaggerated or reduced in size for illustration. Any dimensions are only exemplary and not restrictive. In addition, the same reference signs are used for the same structures, elements or fittings that appear in more than two figures to reflect similar features.

[0020] An embodiment of the present application discloses a support mechanism for a pile foundation pit wall. Referring to Figures 1-3 , it includes a support plate 1. A cavity is formed inside the support plate 1. The inner wall of the top side of the cavity is fixedly connected with a motor 2. The output shaft of the motor 2 is fixedly connected with a gear disk 3. Five transmission rods 4 are slidably connected to the outside of the support plate 1. The inner ends of the five transmission rods 4 are all in screw drive connection with a screw rod 5. The inner ends of the five screw rods 5 are all fixedly connected with bevel gears 6. The five bevel gears 6 are all meshed with the gear disk 3. The outer ends of the five transmission rods 4 are all fixedly connected with support plates 7. By setting the support plates 7, when in use, the support plate 1 is placed at the bottom of the foundation pit. The driving force generated by the motor 2 makes the screw rod 5 rotate after transmission. The rotation of the screw rod 5 drives the transmission rod 4 to move outward. The transmission rod 4 drives the support plate 7 to move outward. After multiple support plates 7 cooperate with each other and contact the pit wall, the soil of the pit wall can be effectively supported and fixed. Even when the soil is loose in rainy or snowy weather, the landslide phenomenon can be effectively avoided, thus effectively avoiding the rework caused by re-burial, saving time and reducing the construction cost at the same time.

[0021] In the present application, a plurality of arc-shaped placement boxes 8 are fixedly connected to the inner walls of the five support plates 7. The plurality of arc-shaped placement boxes 8 are on the same horizontal plane, and the inner walls of two adjacent arc-shaped placement boxes 8 are both slidably connected with the same arc-shaped reinforcing rib 9. By setting the arc-shaped reinforcing rib 9, after the support plate 7 contacts the pit wall, the plurality of arc-shaped reinforcing ribs 9 cooperate with each other to fix the support plate 7 again, thereby improving the stability of the support plate 7 during support and fixation, and avoiding deformation of the support plate 7 caused by excessive pressure exerted by the soil of the pit wall on the support plate 7.

[0022] In the present application, fixing bolts 10 are threadedly connected to the inner sides of the plurality of arc-shaped placement boxes 8. By setting the fixing bolts 10, when the support plate 7 supports the inner wall of a foundation pit with different diameters, the larger the pit diameter, the more the arc-shaped reinforcing rib 9 moves out of the arc-shaped placement box 8. At this time, turning the fixing bolt 10 can squeeze and fix the moved arc-shaped reinforcing rib 9 to avoid the retraction phenomenon of the arc-shaped reinforcing rib 9, thereby further ensuring the stability of the support.

[0023] In this application, the five transmission rods 4 are all designed in a rectangular shape; by setting the five transmission rods 4 to be in a rectangular design, when the screw rod 5 rotates to drive the transmission rod 4 to move, the rectangular transmission rod 4 is restricted by the side wall of the support plate 1, which can prevent it from rotating with the screw rod 5.

[0024] In this application, a plurality of hemispheres 11 are fixedly connected to the bottom side of the gear disc 3, and the plurality of hemispheres 11 are all in contact with the inner wall of the bottom side of the support plate 1; by providing the hemispheres 11, when the motor 2 drives the gear disc 3 to rotate, the hemispheres 11 can provide support for the gear disc 3 while minimizing the side friction between the gear disc 3 and the inner wall of the bottom side of the support plate 1, thereby improving the smoothness of the rotation of the gear disc 3.

[0025] The standard parts used in this utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0026] The implementation principle of the pile foundation pit wall support mechanism in the embodiment of this application is as follows: When in use, the support plate 1 is placed at the bottom of the foundation pit, the power is turned on, the output shaft of the motor 2 drives the gear disc 3 to rotate, the gear disc 3 drives the bevel gear 6 to rotate, the bevel gear 6 drives the screw rod 5 to rotate, the screw rod 5 rotates to drive the transmission rod 4 to move outward, the transmission rod 4 drives the support plate 7 to move outward. After the multiple support plates 7 cooperate with each other and contact the pit wall, they can effectively support and fix the soil on the pit wall. Even when the soil is loose in rainy or snowy weather, the landslide phenomenon can be effectively avoided, thereby effectively avoiding the rework caused by re-burial, saving time and reducing the construction cost. When the support plate 7 contacts the pit wall, the multiple arc-shaped reinforcing ribs 9 cooperate with each other to fix the support plate 7 again, thereby improving the stability of the support plate 7 during support and fixing, and avoiding the deformation of the support plate 7 caused by the excessive pressure exerted by the soil on the pit wall on the support plate 7. When the support plate 7 supports the inner wall of the foundation pit with different diameters, the larger the pit diameter, the more the arc-shaped reinforcing rib 9 moves out of the arc-shaped placement box 8. At this time, turning the fixing bolt 10 can squeeze and fix the moved arc-shaped reinforcing rib 9 to prevent the arc-shaped reinforcing rib 9 from retracting, thereby further ensuring the stability of the support. When the motor 2 drives the gear disc 3 to rotate, the hemispheres 11 can provide support for the gear disc 3 while minimizing the side friction between the gear disc 3 and the inner wall of the bottom side of the support plate 1, thereby improving the smoothness of the rotation of the gear disc 3.

[0027] The following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0028] Second, in the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0029] Finally, the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A pile foundation pit wall support mechanism, including a support plate (1), characterized in that, A cavity is formed inside the pallet (1). A motor (2) is fixedly connected to the inner wall of the top side of the cavity. An output shaft of the motor (2) is fixedly connected to a gear disk (3). Five transmission rods (4) are slidably connected to the outside of the pallet (1). A screw rod (5) is helically connected to the center of the inner side of each of the five transmission rods (4). Inner ends of the five screw rods (5) are fixedly connected to bevel gears (6). The five bevel gears (6) are all meshed with the gear disk (3). Outer ends of the five transmission rods (4) are fixedly connected to support plates (7).

2. The pile foundation pit wall support mechanism according to claim 1, characterized in that: A plurality of arc-shaped placement boxes (8) are fixedly connected to the inner walls of the five support plates (7). The plurality of arc-shaped placement boxes (8) are on the same horizontal plane, and the inner walls of two adjacent arc-shaped placement boxes (8) are slidably connected to the same arc-shaped reinforcing rib (9).

3. A pile foundation pit wall support mechanism according to claim 2, characterized in that: Fixing bolts (10) are threadedly connected to the inner sides of the plurality of arc-shaped placement boxes (8).

4. A pile foundation pit wall support mechanism according to claim 1, characterized in that: The five transmission rods (4) are all designed in a rectangular shape.

5. A pile foundation pit wall support mechanism according to claim 1, characterized in that: A plurality of hemispheres (11) are fixedly connected to the bottom side of the gear disk (3). The plurality of hemispheres (11) are all in contact with the inner wall of the bottom side of the pallet (1).

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