Foundation pit supporting frame with adjustable supporting surface

Abstract

The foundation pit supporting frame with the adjustable supporting face comprises a bottom plate, fixing blocks are arranged at the two ends of the upper surface of the bottom plate, a first baffle is rotationally connected between the fixing blocks on the two sides, a second baffle is connected to the side, facing the bottom plate, of the first baffle in a sliding mode, and the overall height of the device is adjusted by sliding the second baffle up and down; and the inner sides of the first baffle and the second baffle are slidably connected with built-in plates correspondingly, by pulling the built-in plates in the first baffle, when the second baffle slides to the top of the first baffle, the built-in plates in the second baffle are pulled out, and the supporting area is enlarged. A first built-in plate and a second built-in plate can slide in a first drawing groove and a second drawing groove through a first rolling column and a second rolling column, meanwhile, a gear is rotated to enable a rack to move, the built-in plates are made to move, the device can rapidly adjust the supporting face, the working efficiency is improved, the angle of a first baffle can be adjusted, and the device is convenient to use. And the baffle plate II can synchronously rotate along with the baffle plate I, so that the angle of the supporting surface can be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to a foundation pit support frame, especially a foundation pit support frame with adjustable support surface. BACKGROUND

[0002] A foundation pit support frame is a temporary structure used to support and protect the side walls of a foundation pit. When constructing a building or underground structure, a foundation pit needs to be excavated. The soil around the foundation pit will lose its original balance after excavation and be subjected to various forces such as lateral soil pressure and groundwater pressure. The role of the foundation pit support frame is to resist these forces and prevent the side walls of the foundation pit from collapsing, ensuring the safety and smooth progress of construction within the foundation pit.

[0003] During use, the foundation pit support frame needs to adjust the support surface to meet the support requirements of different foundation pits due to the different heights and areas of the supported foundation pits. Therefore, a foundation pit support frame with adjustable support surface is proposed.

[0004] Existing foundation pit support technologies mainly include support piles, continuous walls, soil nailing walls, and steel supports. These technologies can meet the foundation pit support requirements within a certain range, but still have the following problems: 1. The support surface of the existing support frame is usually fixed and cannot be flexibly adjusted according to the shape and size of different foundation pits, resulting in the need to customize support schemes for different projects during design and construction, increasing the complexity and cost of construction; 2. The adjustment process of some support systems is complicated and inefficient, affecting the construction progress; 3. For irregular foundation pits or complex geological conditions, traditional support technologies lack adaptability and reliability, which can lead to unsatisfactory support effects and increase construction risks.

[0005] Therefore, it is urgent to develop a foundation pit support frame with adjustable support surface that can quickly adapt to the requirements of different foundation pit shapes and sizes, simplify the construction process, and improve the support effect. INVENTION CONTENTS

[0006] The utility model aims to provide a foundation pit support frame with adjustable support surface to adapt to the requirements of different foundation pit shapes and sizes, simplify the construction process, and improve the support effect.

[0007] Technical scheme: The utility model discloses a bottom plate, both ends of the upper surface of the bottom plate are provided with fixed blocks, rotatingly connected with a baffle one between the fixed blocks on both sides, slidingly connected with a baffle two on the side of the baffle one facing the bottom plate, adjusting the overall height of the adjusting device by sliding the baffle two up and down; the inner sides of the baffle one and the baffle two are slidingly connected with built-in plates respectively, and the support area is expanded by pulling out the built-in plates inside the baffle one and the baffle two.

[0008] The baffle one side is fixedly connected with slide rail one and slide rail two, the baffle two side close to the baffle one is provided with slide groove one and slide groove two, and the slide groove one and the slide groove two are clamped on the slide rail one and the slide rail two respectively.

[0009] The baffle one side is provided with pull-out groove one, the pull-out groove one inner wall is fixedly connected with guide rail one, the pull-out groove one inside is slidably connected with built-in plate one, the built-in plate one one side is provided with slot one, and the built-in plate one is clamped on the guide rail one through the slot one.

[0010] The baffle two side is provided with pull-out groove two, the pull-out groove two inner wall is fixedly connected with guide rail two, the pull-out groove two inside is slidably connected with built-in plate two, the built-in plate two one side is provided with slot two, and the built-in plate two is clamped on the guide rail two through the slot two.

[0011] The built-in plate one bottom is fixedly connected with rack one, the rack one one side is engaged with gear one, the gear one inner ring surface is sleeved with connecting column one, the connecting column one penetrates the baffle one, and the connecting column one one end is fixedly connected with knob one.

[0012] The built-in plate two bottom is fixedly connected with rack two, the rack two one side is engaged with gear two, the gear two inner ring surface is sleeved with connecting column two, the connecting column two penetrates the baffle two, and the connecting column two one end is fixedly connected with knob two.

[0013] The baffle one side is fixedly connected with support one, the support one inside is rotatably connected with supporting arm one, the supporting arm one other end is hingedly connected with supporting arm two, the supporting arm two one side is fixedly connected with transmission shaft, and the transmission shaft is connected with the motor.

[0014] The baffle two side is fixedly connected with support two, the support two is rotatably connected with supporting column one, the supporting column one other end is hingedly connected with sleeve, the sleeve inner ring surface is sleeved with telescopic rod, the telescopic rod one end is provided with support three, the support three inside is fixedly connected with fixed column, and the fixed column penetrates the telescopic rod.

[0015] The bottom plate upper surface is fixedly connected with limiting block, the limiting block is provided with inclined slot and can make the support three clamped in the inside.

[0016] Advantages: the utility model has the following advantages:

[0017] (1) by adjusting the position of the baffle two, the change of the overall height of the device is realized, the support demand under the different height foundation pit operation scene is satisfied, simultaneously, the built-in plate one of the baffle one can be pulled out, the area of the support surface is further expanded, so that the device can cope with diversified support requirements, when the baffle two is at the top of the baffle one, the built-in plate two in the baffle two is pulled out, the support area is expanded again, and the practicability of the device is further improved.

[0018] (2) The inner plate 1 and inner plate 2 can slide quickly in the pull-out groove 1 and pull-out groove 2 by the rolling column 1 and the rolling column 2. At the same time, the rack moves by rotating the gear, which in turn moves the inner plate, making it convenient for the operator to operate. This allows the device to quickly adjust the support surface and improve work efficiency. The angle of the baffle 1 can be adjusted to cope with the foundation pit working conditions with different inclination angles. The baffle 2 can rotate synchronously with the rotation of the baffle 1, thereby adjusting the angle of the support surface, which is convenient for the operator to operate and is conducive to the operation flexibility and adaptability of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0021] Figure 3 for Figure 2 A magnified view of part A;

[0022] Figure 4 This is a schematic diagram of the partially unfolded structure of this utility model. Figure 1 ;

[0023] Figure 5 This is a schematic diagram of the partially unfolded structure of this utility model. Figure 2 . Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figures 1-5 As shown, the adjustable support surface foundation pit support frame of this utility model includes a base plate 1. Fixing blocks 2 are fixedly connected to both ends of the upper surface of the base plate 1. A rotating shaft 3 connects between the fixing blocks 2 on both sides. A baffle 4 is rotatably connected to the rotating shaft 3. A slide rail 6 and a slide rail 8 are fixedly connected to the side of the baffle 4 facing the base plate 1. Figure 4 As shown, a limiting plate 46 is provided below slide rail 1 6 and slide rail 2 8. A guide groove 7 is provided on the inner side of slide rail 1 6. A baffle 2 5 is slidably connected to the outer side of slide rail 1 6 and slide rail 2 8. A slide groove 1 15 and a slide groove 2 16 are provided on the side of baffle 2 5 near baffle 1 4. Figure 5 As shown, slide 15 and slide 26 are respectively engaged with slide rail 6 and slide rail 8. A groove is provided on the bottom side of baffle 25, which allows slide rail 6 and slide rail 28 to enter, but the groove does not penetrate baffle 25. By adjusting the position of baffle 25, the overall height of the device can be changed to meet the support requirements of different height pit operation scenarios.

[0026] like Figure 2 andFigure 3 As shown in the drawings, the baffle 4 is provided with a pull-out slot 9 on one side, the inner wall of the pull-out slot 9 is fixedly connected with a guide rail 10, the pull-out slot 9 is slidably connected with an inner plate 12, the inner plate 12 is provided with a slot 13 on one side, the inner plate 12 is clamped on the guide rail 10 through the slot 13, the baffle 5 is provided with a pull-out slot 17 on one side, the inner wall of the pull-out slot 17 is fixedly connected with a guide rail 18, the pull-out slot 17 is slidably connected with an inner plate 20, the inner plate 20 is provided with a slot 21 on one side, the inner plate 20 is clamped on the guide rail 18 through the slot 21, and the baffle 5 is fixedly connected with a handle 45 on one side.

[0027] As shown in the drawings, Figure 2 , Figure 3 , Figure 4 and Figure 5 the inner wall of the pull-out slot 9 is fixedly connected with a rolling column 11, the rolling column 11 is arranged in the groove arranged on one side of the guide rail 10, the inner wall of the pull-out slot 17 is fixedly connected with a rolling column 19, the rolling column 19 is arranged in the groove arranged on one side of the guide rail 18, the side surface of the rolling column 11 and the rolling column 19 is sleeved with a rotatable rolling sleeve, the bottom of the inner plate 12 is fixedly connected with a rack 14, one side of the rack 14 is engaged with a gear 24, the inner ring surface of the gear 24 is sleeved with a connecting column 25, the connecting column 25 penetrates the baffle 4, one end of the connecting column 25 is fixedly connected with a knob 26, the bottom of the inner plate 20 is fixedly connected with a rack 22, one side of the rack 22 is engaged with a gear 27, the inner ring surface of the gear 27 is sleeved with a connecting column 28, the connecting column 28 penetrates the baffle 5, and one end of the connecting column 28 is fixedly connected with a knob 29.

[0028] As shown in the drawings, Figure 1 and Figure 2As shown, the baffle 4 side fixedly connected with a support 30, the support 30 inside fixedly connected with a rotating shaft 31, rotating shaft 31 side surface movably sleeved with a support arm 32, support arm 32 the other end hinged with a support arm 33, support arm 33 side fixedly connected with a transmission shaft 34, the bottom plate 1 upper surface is provided with a motor 35, transmission shaft 34 movably connected on the output end of the motor 35. Baffle 5 side fixedly connected with a support 36, the support 36 inside fixedly connected with a rotating shaft 37, rotating shaft 37 side surface movably sleeved with a support column 38, support column 38 the other end hinged with a sleeve 39, sleeve 39 inner annular surface sleeved with a telescopic rod 41, telescopic rod 41 one end is provided with a support 42, the support 42 inside fixedly connected with a fixed column 43, fixed column 43 through telescopic rod 41, the bottom plate 1 upper surface fixedly connected with a limit block 44, the limit block 44 is provided with a beveled slot and can make the support 42 is clamped in the inside, sleeve 39 side surface is connected with a fixed bolt 40 through the thread, telescopic rod 41 side surface is provided with a plurality of through holes, fixed bolt 40 through the through hole provided by telescopic rod 41. Support 42 in the limit block 44 beveled slot, while the telescopic rod 41 is in the maximum extension distance, baffle 5 is located above the baffle 4.

[0029] Working principle:

[0030] The motor 35 is started to rotate the transmission shaft 34, drive the support arm two 33, drive the support arm one 32 to rotate upward, and drive the baffle one 4 to rotate upward. The motor 35 is started to rotate the transmission shaft 34, drive the support arm two 33, drive the support arm one 32 to rotate upward, and drive the baffle one 4 to rotate upward. The angle of the baffle one 4 is adjusted, and the device can adapt to different inclination angles of the foundation pit. When the height needs to be adjusted, the handle 45 is pulled to adjust the height of the baffle two 5 by sliding on the slide rail one 6 and the slide rail two 8, and the height of the device is increased. When adjusting the height of the baffle two 5, the angle of the baffle two 5 is vertical. At this time, the fixed bolt 40 is rotated to make the telescopic rod 41 extend from the sleeve 39, adjust the appropriate length, make the support three 42 contact with the bottom plate 1, and make the support column 38 support the baffle two 5. When the baffle two 5 is used with the baffle one 4, the support column 38 and the sleeve 39 are rotated and moved at the same time, the support three 42 is moved to the inclined slot of the limiting block 44, and the baffle two 5 is rotated synchronously with the baffle one 4. When the baffle one 4 is adjusted in angle, the baffle two 5 is rotated synchronously with the baffle one 4, and the angle of the support surface is adjusted. The rotation of the knob one 26 drives the connecting column to rotate, and the gear one 24 rotates. The gear one 24 drives the rack one 14 to move, and the built-in plate one 12 connected with the rack one 14 slides in the pull-out slot one 9, and the built-in plate one 12 is moved out of the baffle one 4. The area of the support surface is expanded, and the demand for supporting different areas of the foundation pit is met. When the baffle two 5 is moved to the top of the baffle one 4 by the slide rail one 6 and the slide rail two 8, the connecting column two 28 is rotated by the knob one 26, and the gear two 27 is rotated. The gear two 27 drives the rack two 22 to move, and the built-in plate two 20 connected with the rack one 14 slides in the pull-out slot two 17, and the built-in plate two 20 is moved out of the baffle two 5. The area of the support surface is further expanded, and the device can meet the demand for different support surfaces.

Claims

1. A support frame for a foundation pit support with an adjustable support surface, characterized by, Including the bottom plate, the upper surface of the bottom plate is provided with fixed blocks at both ends, the fixed blocks on both sides are rotatably connected with the baffle one, the side of the baffle one facing the bottom plate is slidably connected with the baffle two, the overall height of the adjusting device is adjusted by sliding the baffle two up and down, the inside of the baffle one and the baffle two is slidably connected with the built-in plate respectively, the supporting area is expanded by pulling out the built-in plate inside the baffle one and the baffle two.

2. The support frame according to claim 1, wherein The side of the baffle one facing the bottom plate is fixedly connected with the sliding rail one and the sliding rail two, the side of the baffle two close to the baffle one is provided with the sliding groove one and the sliding groove two, and the sliding groove one and the sliding groove two are respectively clamped on the sliding rail one and the sliding rail two.

3. The support frame according to claim 2, wherein The side of the baffle one is provided with the pull-out groove one, the inner wall of the pull-out groove one is fixedly connected with the guide rail one, the inside of the pull-out groove one is slidably connected with the built-in plate one, the side of the built-in plate one is provided with the notch one, and the built-in plate one is clamped on the guide rail one through the notch one.

4. The support frame according to claim 1, wherein The side of the baffle two is provided with the pull-out groove two, the inner wall of the pull-out groove two is fixedly connected with the guide rail two, the inside of the pull-out groove two is slidably connected with the built-in plate two, the side of the built-in plate two is provided with the notch two, and the built-in plate two is clamped on the guide rail two through the notch two.

5. The support frame according to claim 3, wherein The bottom of the built-in plate one is fixedly connected with the rack one, the side of the rack one is engaged with the gear one, the inner ring surface of the gear one is sleeved with the connecting column one, the connecting column one penetrates the baffle one, and one end of the connecting column one is fixedly connected with the knob one.

6. The support frame according to claim 4, wherein The bottom of the built-in plate two is fixedly connected with the rack two, the side of the rack two is engaged with the gear two, the inner ring surface of the gear two is sleeved with the connecting column two, the connecting column two penetrates the baffle two, and one end of the connecting column two is fixedly connected with the knob two.

7. The support frame according to claim 1, wherein The side of the baffle one is fixedly connected with the support one, the support one is rotatably connected with the supporting arm one in the support one, the other end of the supporting arm one is hingedly connected with the supporting arm two, the side of the supporting arm two is fixedly connected with the transmission shaft, and the transmission shaft is connected with the motor.

8. The support frame according to claim 1, wherein The side of the baffle two is fixedly connected with the support two, the support two is rotatably connected with the supporting column one on the support two, the other end of the supporting column one is hingedly connected with the sleeve, the inner ring surface of the sleeve is sleeved with the telescopic rod, one end of the telescopic rod is provided with the support three, the inside of the support three is fixedly connected with the fixed column, and the fixed column penetrates the telescopic rod.

9. The support frame according to claim 8, wherein The upper surface of the bottom plate is fixedly connected with the limiting block, the limiting block is provided with the inclined slot and can make the support three clamped in the inside.

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