A ground pile casing for foundation reinforcement

Abstract

The utility model relates to the technical field of ground piles, and discloses a ground pile casing for foundation reinforcement, including a fixing plate, an outer casing fixedly installed at the bottom of the fixing plate, an inner casing provided on the fixing plate, the inner casing located inside the outer casing, and a pipe tip fixedly installed at the bottom of the inner casing. The utility model rotates four sets of knobs, and a slider threadedly sleeved with a screw rod moves downward along a slide groove, at which time one end of the second connecting rod moves downward, so that the second connecting rod and the first connecting rod push the connecting rod outward, and the friction pad on the outer wall of the block and the soil layer fit together. Compared with the traditional device, the block of the device is located inside the outer casing during installation, so that the device has less resistance during laying and is easier to install. After the installation is completed, the friction pad on the outer wall of the block and the soil layer fit together by rotating the knob, which increases the friction force and improves the fixing effect of the casing.

Description

Technical Field

[0001] The utility model relates to the technical field of ground piles, and more specifically, to a ground pile casing for foundation reinforcement. Background Art

[0002] Ground piles are a foundation reinforcement element used for equipment or buildings, usually made of reinforced concrete, prestressed concrete, steel products or composite materials. Ground piles are established below the ground with the help of a drilling machine and are widely used in the foundations of bridges, tunnels, underground garages, high-rise buildings and other large construction projects and large equipment that need to bear heavy loads.

[0003] When laying ground piles, in order to strengthen and protect the pile body, ground pile casings are usually used to ensure their bearing capacity and service life. Current ground pile casings, for example, Chinese patent application number: CN202022521712.1, a pile casing for foundation reinforcement, includes a casing body, a pile casing tip, a drainage hole, a water filter membrane, a shock-absorbing friction component and a fixed extrusion component.

[0004] The equipment increases the friction between the casing and the soil layer to ensure that the casing is not easy to sink in the soft soil layer. However, the setting of the shock-absorbing telescopic spring and the shock-absorbing support plate will cause the shock-absorbing support plate to always conflict with the soil layer when the casing is laid downward, so that the shock-absorbing support plate destroys the soil structure of the outer layer of the casing, causing the casing to shake. In addition, the friction is large during laying, making the laying difficult, so it needs to be improved and optimized. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a ground pile casing for foundation reinforcement, which has the advantages of preventing sinking and smooth installation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ground pile casing for foundation reinforcement, comprising a fixing plate, an outer casing is fixedly installed at the bottom of the fixing plate, an inner casing is arranged on the fixing plate, the inner casing is located inside the outer casing, a pipe tip is fixedly installed at the bottom of the inner casing, the outer casing and the inner casing are fixedly connected through the pipe tip, and a connecting plate is fixedly installed at the bottom of the pipe tip;

[0007] The outer wall of the inner sleeve is fixedly installed with a fixing block 1, and the fixing block 1 is located at the upper and lower sides of the inner sleeve, and the outer walls of the two groups of the fixing blocks 1 are rotatably installed with connecting rods 1, and the two groups of connecting rods 1 are rotatably connected to the connecting rods, and a connecting pipe is fixedly installed on the top of the inner sleeve, and the connecting pipe is fixedly connected to a fixing plate, and the outer wall of the connecting pipe is provided with four groups of sliding grooves, and a slider is slidably installed inside the sliding groove, and the slider is sleeved on the outer wall of the connecting pipe, and a fixing block 2 is fixedly installed on the outer wall of the slider, and a connecting rod 2 is rotatably installed on the outer wall of the fixing block 2, and one end of the connecting rod 2 is rotatably connected to the connecting rod, and the connecting rod is fixedly connected to the block, and four groups of screws are rotatably installed between the fixing plate and the inner sleeve, and the four groups of screws are threadedly sleeved with the slider.

[0008] As a preferred technical solution of the utility model, a pressure cover is detachably installed inside the fixed plate, a threaded groove is opened on the outer wall of the pressure cover, a pull rod is fixedly installed on the top of the pressure cover, and the pressure cover is threadedly sleeved with the fixed plate through the threaded groove.

[0009] As a preferred technical solution of the utility model, a friction pad is fixedly installed on the outer wall of the stop block to increase the friction force.

[0010] As a preferred technical solution of the utility model, the outer wall of the outer sleeve is fixedly provided with four groups of notches, and the four groups of notches allow the stop block to move to the outside of the outer sleeve.

[0011] As a preferred technical solution of the utility model, a second drainage port is provided on the outer wall of the tube tip, and a first drainage port is provided on the outer wall of the connecting plate.

[0012] As a preferred technical solution of the utility model, the tops of the four groups of screw rods penetrate the fixed plate and are fixedly connected to the knob, and the knob is rotatably mounted on the top of the fixed plate.

[0013] As a preferred technical solution of the utility model, a gap is left between the outer sleeve and the inner sleeve, and water in the soil layer flows through between the outer sleeve and the inner sleeve and is discharged from the drainage port of the connecting plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. In the utility model, by rotating four sets of knobs, a slider threadedly sleeved with a screw rod will move downward along a slide groove, at which time one end of the second connecting rod moves downward, so that the second connecting rod and the first connecting rod push the connecting rod outward, and the friction pad on the outer wall of the block and the soil layer fit together. Compared with the traditional device, the block is located inside the outer casing during installation, so that the device has less resistance during laying and is easier to install. After the installation is completed, the friction pad on the outer wall of the block and the soil layer fit together by rotating the knob, thereby increasing the friction force and improving the fixing effect of the casing.

[0016] 2. The utility model provides a threaded groove on the outer wall of the gland, so that the staff can send the gland to the bottom of the fixed plate by rotating the pull rod. Compared with the traditional device, the device compacts the filling material inside the inner casing through the gland, reduces the gap between the filling materials, and effectively improves the bearing capacity and service life of the pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the connecting plate of the utility model;

[0020] Figure 4 This is a schematic diagram of the connecting rod structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the slider of the utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the screw of the utility model;

[0023] Figure 7 This is an exploded view of the gland of the utility model.

[0024] In the figure: 1. fixing plate; 2. outer sleeve; 3. inner sleeve; 4. connecting plate; 5. pipe tip; 6. drain outlet 1; 7. drain outlet 2; 8. connecting pipe; 9. fixing block 1; 10. connecting rod 1; 11. connecting rod; 12. slider; 13. slide groove; 14. screw; 15. fixing block 2; 16. connecting rod 2; 17. stop block; 18. friction pad; 19. notch; 20. knob; 21. pull rod; 22. pressure cover; 23. threaded groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figures 1 to 7 As shown, the utility model provides a ground pile casing for foundation reinforcement, comprising a fixing plate 1, an outer sleeve 2 is fixedly installed at the bottom of the fixing plate 1, an inner sleeve 3 is provided on the fixing plate 1, the inner sleeve 3 is located inside the outer sleeve 2, a pipe tip 5 is fixedly installed at the bottom of the inner sleeve 3, the outer sleeve 2 and the inner sleeve 3 are fixedly connected through the pipe tip 5, and a connecting plate 4 is fixedly installed at the bottom of the pipe tip 5;

[0027] A fixing block 9 is fixedly installed on the outer wall of the inner sleeve 3, and the fixing block 9 is located at the upper and lower sides of the inner sleeve 3, and the outer walls of the two groups of fixing blocks 9 are rotatably installed with connecting rods 10, and the two groups of connecting rods 10 are rotatably connected to the connecting rod 11. A connecting pipe 8 is fixedly installed on the top of the inner sleeve 3, and the connecting pipe 8 is fixedly connected to the fixing plate 1. The outer wall of the connecting pipe 8 is provided with four groups of slide grooves 13, and a slider 12 is slidably installed inside the slide groove 13. The slider 12 is sleeved on the outer wall of the connecting pipe 8. A fixing block 2 15 is fixedly installed on the outer wall of the slider 12, and a connecting rod 2 16 is rotatably installed on the outer wall of the fixing block 2 15. One end of the connecting rod 2 16 is rotatably connected to the connecting rod 11, and the connecting rod 11 is fixedly connected to the block 17. Four groups of screws 14 are rotatably installed between the fixing plate 1 and the inner sleeve 3, and the four groups of screws 14 are threadedly sleeved with the slider 12.

[0028] When laying the piles, the staff first drills the foundation construction surface, and then puts the outer sleeve 2 into the hole of the pile. After the outer sleeve 2 completely enters the hole, the staff turns the four sets of knobs 20. The rotation of the knobs 20 drives the screw 14 to rotate. At this time, the slider 12 threadedly sleeved with the screw 14 will move downward along the slide groove 13. Further, the fixed block 15 moves downward, so that one end of the connecting rod 16 moves downward. The length of the connecting rod 16 is fixed, so that the connecting rod 16 and the connecting rod 10 push the connecting rod 11 outward. At this time, the moving path of the block 17 is restricted by the groove 19, so that the block 17 moves outward along the groove 19. Furthermore, the friction pad 18 on the outer wall of the block 17 fits with the soil layer to increase the friction. After the fixation is completed, the staff can pour concrete to complete the laying of the ground pile. In rainy weather, the moisture in the soil layer will pass through the groove 19 and flow into the interior of the pipe tip 5 through the drain port 1 6 on the outer wall of the connecting plate 4, and finally be discharged by the drain port 2 7. At this time, the ground pile part inside the inner sleeve 3 will not be washed by water, thereby increasing the service life of the ground pile.

[0029] By rotating the four sets of knobs 20, the slider 12 threadedly connected with the screw 14 will move downward along the slide groove 13. At this time, one end of the connecting rod 16 moves downward, so that the connecting rod 16 and the connecting rod 10 push the connecting rod 11 outward, and the friction pad 18 on the outer wall of the block 17 and the soil layer fit together. Compared with the traditional device, the block 17 of the device is located inside the outer casing 2 during installation, so that the device has less resistance during laying and is easier to install. After the installation is completed, by rotating the knob 20, the friction pad 18 on the outer wall of the block 17 and the soil layer fit together, which increases the friction and improves the fixing effect of the casing.

[0030] A gland 22 is detachably installed inside the fixing plate 1 , a threaded groove 23 is provided on the outer wall of the gland 22 , a pull rod 21 is fixedly installed on the top of the gland 22 , and the gland 22 is threadedly sleeved with the fixing plate 1 through the threaded groove 23 .

[0031] After the concrete pouring is completed, the staff will pick up the pull rod 21 and align the pressure cover 22 with the middle of the fixed plate 1. At this time, the staff will rotate the pressure cover 22 to slowly move the pressure cover 22 into the inside of the fixed plate 1. The bottom of the pressure cover 22 will compact the filling material inside the inner sleeve 3 to avoid gaps between the filling materials.

[0032] By setting the threaded groove 23 on the outer wall of the pressure cap 22, the staff can send the pressure cap 22 to the bottom of the fixed plate 1 by rotating the pull rod 21. Compared with the traditional device, the device compacts the filling material inside the inner sleeve 3 through the pressure cap 22, reduces the gap between the filling materials, and effectively improves the bearing capacity and service life of the pile.

[0033] A friction pad 18 is fixedly mounted on the outer wall of the stop block 17 to increase the friction force.

[0034] The outer wall of the outer sleeve 2 is fixedly provided with four groups of notches 19 , and the four groups of notches 19 allow the stopper 17 to move to the outside of the outer sleeve 2 .

[0035] The moving path of the stopper 17 is limited by the notch 19, so that the stopper 17 moves outward along the notch 19. Furthermore, the friction pad 18 on the outer wall of the stopper 17 and the soil layer fit each other to increase the friction force.

[0036] The outer wall of the tube tip 5 is provided with a second drainage port 7 , and the outer wall of the connecting plate 4 is provided with a first drainage port 6 .

[0037] The tops of the four sets of screw rods 14 penetrate the fixing plate 1 and are fixedly connected to the knob 20 , and the knob 20 is rotatably mounted on the top of the fixing plate 1 .

[0038] The staff rotates the four sets of knobs 20 , and the rotation of the knobs 20 drives the screw rod 14 to rotate. At this time, the slider 12 threadedly sleeved with the screw rod 14 will move downward along the slide groove 13 .

[0039] There is a gap between the outer casing 2 and the inner casing 3, and water in the soil layer flows through the outer casing 2 and the inner casing 3 and is discharged from the drainage port 6 of the connecting plate 4.

[0040] In rainy weather, the moisture in the soil layer will flow through the groove 19 and into the interior of the pipe tip 5 through the drainage port 1 6 on the outer wall of the connecting plate 4, and finally be discharged through the drainage port 2 7. At this time, the ground pile part inside the inner sleeve 3 will not be washed by water, thereby improving the service life of the ground pile.

[0041] The working principle and use process of this utility model:

[0042] When laying the piles, the staff first drills the foundation construction surface, and then puts the outer sleeve 2 into the hole of the pile. After the outer sleeve 2 completely enters the hole, the staff turns the four sets of knobs 20. The rotation of the knobs 20 drives the screw 14 to rotate. At this time, the slider 12 threadedly sleeved with the screw 14 will move downward along the slide groove 13. Further, the fixed block 15 moves downward, so that one end of the connecting rod 16 moves downward. The length of the connecting rod 16 is fixed, so that the connecting rod 16 and the connecting rod 10 push the connecting rod 11 outward. At this time, the moving path of the block 17 is restricted by the groove 19, so that the block 17 moves outward along the groove 19. Furthermore, the friction pad 18 on the outer wall of the block 17 fits with the soil layer to increase the friction. After the fixation is completed, the staff can pour concrete to complete the laying of the ground pile. In rainy weather, the moisture in the soil layer will pass through the groove 19 and flow into the interior of the pipe tip 5 through the drain port 1 6 on the outer wall of the connecting plate 4, and finally be discharged by the drain port 2 7. At this time, the ground pile part inside the inner sleeve 3 will not be washed by water, thereby increasing the service life of the ground pile.

[0043] After the concrete pouring is completed, the staff will pick up the pull rod 21 and align the pressure cover 22 with the middle of the fixed plate 1. At this time, the staff will rotate the pressure cover 22 to slowly move the pressure cover 22 into the inside of the fixed plate 1. The bottom of the pressure cover 22 will compact the filling material inside the inner sleeve 3 to avoid gaps between the filling materials.

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

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pile casing for foundation reinforcement, comprising a fixing plate (1), characterized in that: An outer sleeve (2) is fixedly mounted on the bottom of the fixing plate (1); an inner sleeve (3) is provided on the fixing plate (1); the inner sleeve (3) is located inside the outer sleeve (2); a tube tip (5) is fixedly mounted on the bottom of the inner sleeve (3); the outer sleeve (2) and the inner sleeve (3) are fixedly connected via the tube tip (5); a connecting plate (4) is fixedly mounted on the bottom of the tube tip (5); A fixing block (9) is fixedly mounted on the outer wall of the inner sleeve (3), and the fixing block (9) is located at the upper and lower sides of the inner sleeve (3). A connecting rod (10) is rotatably mounted on the outer walls of two groups of the fixing blocks (9). Both groups of connecting rods (10) are rotatably connected to the connecting rod (11). A connecting pipe (8) is fixedly mounted on the top of the inner sleeve (3). The connecting pipe (8) is fixedly connected to the fixing plate (1). Four groups of sliding grooves (13) are provided on the outer wall of the connecting pipe (8), and the internal sliding arrangement of the sliding grooves (13) is A slider (12) is provided, the slider (12) is sleeved on the outer wall of the connecting pipe (8), a second fixing block (15) is fixedly installed on the outer wall of the slider (12), a second connecting rod (16) is rotatably installed on the outer wall of the second fixing block (15), one end of the second connecting rod (16) is rotatably connected to the connecting rod (11), the connecting rod (11) is fixedly connected to the block (17), four groups of screw rods (14) are rotatably installed between the fixing plate (1) and the inner sleeve (3), and the four groups of screw rods (14) are all threadedly sleeved on the slider (12).

2. A ground pile casing for foundation reinforcement according to claim 1, characterized in that: A pressure cover (22) is detachably mounted inside the fixing plate (1), a threaded groove (23) is provided on the outer wall of the pressure cover (22), a pull rod (21) is fixedly mounted on the top of the pressure cover (22), and the pressure cover (22) is threadedly sleeved with the fixing plate (1) via the threaded groove (23).

3. The pile casing for foundation reinforcement according to claim 1, characterized in that: A friction pad (18) is fixedly mounted on the outer wall of the stop block (17) to increase the friction force.

4. The pile casing for foundation reinforcement according to claim 1, characterized in that: The outer wall of the outer sleeve (2) is fixedly provided with four groups of notches (19), and the four groups of notches (19) allow the stop block (17) to move to the outside of the outer sleeve (2).

5. The pile casing for foundation reinforcement according to claim 1, characterized in that: The outer wall of the tube tip (5) is provided with a second drainage opening (7), and the outer wall of the connecting plate (4) is provided with a first drainage opening (6).

6. The pile casing for foundation reinforcement according to claim 1, characterized in that: The tops of the four groups of screw rods (14) penetrate the fixed plate (1) and are fixedly connected to the knob (20), and the knob (20) is rotatably mounted on the top of the fixed plate (1).

7. The pile casing for foundation reinforcement according to claim 1, characterized in that: A gap is left between the outer casing (2) and the inner casing (3), and water in the soil layer flows through the outer casing (2) and the inner casing (3) and is discharged from a drainage port (6) of the connecting plate (4).

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