Karst pile foundation pile casing

Abstract

The utility model relates to the field of pile foundation protection barrels, in particular to a karst pile foundation protection barrel which comprises an upper barrel body, a lower barrel body connected with the upper barrel body, a connecting ring arranged on the side, close to the lower barrel body, of the upper barrel body, a positioning screw used for connecting the connecting ring with the lower barrel body and a positioning barrel in threaded connection with the positioning screw. A reinforcing rod and an adjusting assembly for driving the reinforcing rod to stretch out and draw back are arranged at the end, away from the positioning screw rod, of the positioning cylinder, the reinforcing rod is perpendicular to the positioning cylinder, a mounting groove and a mounting hole are formed in the positioning cylinder, the mounting hole is communicated with the mounting groove, the adjusting assembly is arranged in the mounting groove, and the adjusting assembly is arranged in the mounting groove. And the reinforcing rod penetrates through the mounting hole and is connected with the positioning cylinder in a sliding manner. The device has the advantages that the positioning effect of the positioning cylinder is improved, and therefore deviation of the protective cylinder is reduced.

Description

Technical Field

[0001] The present application relates to the field of pile foundation protective tubes, and in particular to a karst pile foundation protective tube. Background Art

[0002] When pouring karst pile foundation, protective tubes need to be set up. During construction, the protective tubes are placed in the foundation pit. Different numbers of protective tubes are placed according to the depth of the foundation pit. The protective tubes are stacked in the foundation pit, and then the concrete pouring can be carried out.

[0003] In the actual construction process, when the protective tube is placed in the foundation pit, it is necessary to ensure that the deviation between the plane position of the casing hole and the design is no more than 5 cm, and the vertical inclination is no more than 0.5%. Since a large number of protective tubes are placed, the protective tubes in the foundation pit are prone to displacement. Prior art CN216809921U discloses a karst pile foundation casing, which achieves the limitation of the cylinder by setting a positioning sleeve at the connection between adjacent cylinders, thereby reducing the phenomenon of cylinder displacement. However, the connection stability between the positioning sleeve of the columnar structure and the side wall of the foundation pit is low, and the positioning sleeve is prone to slippage, thereby reducing the positioning effect of the positioning sleeve, and causing the displacement of the protective tube.

[0004] With respect to the above-mentioned related technologies, the inventor believes that the positioning sleeve is prone to slippage, which leads to a reduction in the positioning effect, thereby causing the protective tube to deviate. Utility Model Content

[0005] In order to solve the problem that the positioning sleeve is prone to slippage, resulting in reduced positioning effect and further causing the deviation of the protective tube, the present application provides a karst pile foundation casing.

[0006] The present application provides a karst pile foundation casing, which adopts the following technical solution:

[0007] A karst pile foundation casing comprises an upper tube, a lower tube connected to the upper tube, a connecting ring arranged on a side of the upper tube close to the lower tube, a positioning screw for connecting the connecting ring and the lower tube, and a positioning tube threadedly connected to the positioning screw, a reinforcing rod and an adjusting component for driving the reinforcing rod to extend and retract the reinforcing rod are arranged at one end of the positioning tube away from the positioning screw, the reinforcing rod is arranged vertically to the positioning tube, an installation groove and an installation hole are opened on the positioning tube, the installation hole is communicated with the installation groove, the adjusting component is arranged in the installation groove, and the reinforcing rod passes through the installation hole and is slidably connected to the positioning tube.

[0008] By adopting the above technical solution, after the positioning tube is inserted into the side wall of the foundation pit, the reinforcement rod is driven to extend out of the positioning tube through the adjustment component, and the reinforcement rod arranged vertically with the positioning tube increases the stability of the positioning tube and reduces the phenomenon of slippage of the positioning tube, thereby improving the positioning effect of the positioning tube and further reducing the phenomenon of displacement of the casing. The positioning screw is threadedly connected with the upper tube and the connecting ring, thereby realizing the connection and fixation of the upper tube and the lower tube.

[0009] Optionally, the adjustment assembly includes a pushing block and a pushing rod arranged in the mounting groove, the pushing block is provided with a guide inclined surface, one end of the reinforcement rod extends into the mounting groove and is slidably connected to the guide inclined surface, one end of the pushing rod is connected to the pushing block, and the other end abuts against the positioning screw.

[0010] By adopting the above technical solution, the positioning screw is rotated, and the positioning screw pushes the pushing block to move through the pushing rod. The pushing block pushes the reinforcement rod out of the installation groove through the guiding inclined surface, so that the reinforcement rod is inserted into the side wall of the foundation pit, thereby realizing the limited reinforcement of the positioning cylinder.

[0011] Optionally, a limiting slide groove is provided on the guide inclined surface, one end of the reinforcement rod is connected to a limiting slider, the limiting slider is slidably connected to the limiting slide groove, and a baffle is provided at the opening of the limiting slide groove to limit the sliding of the limiting slider.

[0012] By adopting the above technical solution, when the pushing block moves, the limiting slider slides in the limiting slide groove, and the guiding inclined surface pushes the reinforcement rod out of the installation groove. The setting of the baffle increases the stability of the sliding connection between the reinforcement rod and the pushing block, and reduces the occurrence of separation between the reinforcement rod and the pushing block.

[0013] Optionally, a first tip plug is provided at one end of the reinforcement rod away from the pushing block.

[0014] By adopting the above technical solution, the provision of the first tip plug reduces the resistance encountered by the reinforcement rod when inserted into the side wall of the foundation pit, thereby improving the convenience of inserting the reinforcement rod into the side wall of the foundation pit.

[0015] Optionally, a limit spring is provided in the installation groove, one end of the limit spring is connected to the pushing block, and the other end of the limit spring is connected to the positioning cylinder.

[0016] By adopting the above technical solution, the limit spring limits the position of the push block, so that when the positioning cylinder is inserted into the side wall of the foundation pit, the reinforcement rod is always located inside the positioning cylinder, thereby reducing the resistance exerted on the reinforcement rod, thereby reducing the phenomenon of fracture of the reinforcement rod and increasing the service life of the reinforcement rod.

[0017] Optionally, a second tip plug is provided at one end of the positioning cylinder away from the positioning screw.

[0018] By adopting the above technical solution, the provision of the second tip plug reduces the resistance encountered by the positioning tube when inserted into the side wall of the foundation pit, thereby improving the simplicity of construction.

[0019] Optionally, a clamping groove is provided at one end of the lower tube close to the upper tube, and a clamping ring is provided at one end of the upper tube close to the lower tube, and the clamping ring is clamped with the clamping groove.

[0020] By adopting the above technical solution, the provision of the clamping groove and the clamping ring further improves the connection stability between the upper tube and the lower tube, thereby reducing the phenomenon of the casing being deflected.

[0021] Optionally, a sealing ring is provided at one end of the lower tube close to the upper tube.

[0022] By adopting the above technical solution, the provision of the sealing gasket improves the connection sealing performance between the upper tube and the lower tube.

[0023] Optionally, there are plural positioning screws and plural positioning cylinders, and the positioning screws are threadedly connected to the clamping ring.

[0024] By adopting the above technical solution, the threaded connection between the positioning screw and the clamping ring further improves the connection stability between the upper tube and the lower tube, thereby further reducing the phenomenon of the casing being offset.

[0025] In summary, this application has the following beneficial technical effects:

[0026] 1. The setting of the reinforcement rod improves the positioning effect of the positioning tube, reduces the slippage of the positioning tube, and thus reduces the deviation of the casing;

[0027] 2. The provision of the first tip plug and the second tip plug respectively reduces the resistance encountered by the reinforcement rod and the positioning tube during the insertion process, thereby improving the simplicity of construction and increasing the service life of the reinforcement rod and the positioning tube;

[0028] 3. The provision of the clamping groove and the clamping ring further improves the connection stability between the upper tube and the lower tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a karst pile foundation casing;

[0030] Figure 2 It is a schematic diagram of the cross-sectional structure of a karst pile foundation casing;

[0031] Figure 3 It is a schematic diagram of the cross-sectional structure of the positioning cylinder, the reinforcement rod, the adjustment assembly and the positioning screw;

[0032] Figure 4 yes Figure 3 Enlarged schematic diagram of part A.

[0033] Explanation of the accompanying drawings: 1. Upper cylinder; 11. Snap ring; 2. Lower cylinder; 21. Snap groove; 22. Sealing ring; 3. Connecting ring; 4. Positioning screw; 5. Positioning cylinder; 51. Mounting groove; 52. Mounting hole; 53. Second tip plug; 6. Reinforcement rod; 61. Limiting slider; 62. First tip plug; 7. Adjustment assembly; 71. Push block; 711. Guide ramp; 712. Limiting slide groove; 713. Baffle; 72. Push rod; 73. Limiting spring. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-4 This application is described in further detail.

[0035] The embodiment of the present application discloses a karst pile foundation casing.

[0036] Reference Figure 1 , Figure 2 and Figure 3 A karst pile foundation casing comprises an upper tube 1, a lower tube 2 connected to the upper tube 1, a connecting ring 3 fixedly arranged on a side of the upper tube 1 close to the lower tube 2, a positioning screw 4 for connecting the connecting ring 3 and the lower tube 2, and a positioning tube 5 threadedly connected to the positioning screw 4. A reinforcing rod 6 and an adjusting component 7 for driving the reinforcing rod 6 to extend and retract are arranged at one end of the positioning tube 5 away from the positioning screw 4. The reinforcing rod 6 is arranged vertically with the positioning tube 5. A mounting groove 51 and a mounting hole 52 are provided on the positioning tube 5. The mounting hole 52 is communicated with the mounting groove 51. The adjusting component 7 is arranged in the mounting groove 51. The reinforcing rod 6 passes through the mounting hole 52 and is slidably connected to the positioning tube 5. A clamping groove 21 is provided at one end of the lower tube 2 close to the upper tube 1. A clamping ring 11 is fixedly arranged at one end of the upper tube 1 close to the lower tube 2. The clamping ring 11 is clamped with the clamping groove 21. A sealing ring 22 is fixedly arranged at one end of the lower tube 2 close to the upper tube 1. There are multiple positioning screws 4 and positioning tubes 5 , and the positioning screws 4 are threadedly connected to the clamping ring 11 .

[0037] In an embodiment of the present application, four positioning screws 4 and four positioning cylinders 5 are provided at the connection between the upper cylinder 1 and the lower cylinder 2. The four positioning screws 4 are symmetrically arranged on both sides of the connection between the upper cylinder 1 and the lower cylinder 2. Two positioning screws 4 are provided on one side. Of the two positioning screws 4 on the same side, one positioning screw 4 is threadedly connected to the connecting ring 3 and the upper cylinder 1, and the other positioning screw 4 is threadedly connected to the lower cylinder 2, the clamping ring 11 and the connecting ring 3.

[0038] Reference Figure 3 and Figure 4The adjustment assembly 7 includes a push block 71 and a push rod 72 arranged in the installation groove 51. The push block 71 is provided with a guide slope 711. One end of the reinforcement rod 6 extends into the installation groove 51 and is slidably connected to the guide slope 711. A limit slide groove 712 is provided on the guide slope 711. One end of the reinforcement rod 6 is fixedly connected to the limit slider 61. The limit slider 61 is slidably connected to the limit slide groove 712. A baffle 713 for limiting the sliding of the limit slider 61 is fixedly arranged at the opening of the limit slide groove 712. One end of the push rod 72 is fixedly connected to the push block 71, and the other end abuts against the positioning screw 4. A first tip plug 62 is fixedly arranged at one end of the reinforcement rod 6 away from the push block 71.

[0039] A limit spring 73 is disposed in the mounting groove 51, one end of the limit spring 73 is fixedly connected to the push block 71, and the other end is fixedly connected to the positioning cylinder 5. A second tip plug 53 is fixedly disposed at one end of the positioning cylinder 5 away from the positioning screw 4.

[0040] The implementation principle of a karst pile foundation casing in the embodiment of the present application is as follows: after the positioning tube 5 is inserted into the side wall of the foundation pit, the positioning screw 4 is rotated to push the push rod 72 to move, and the push rod 72 pushes the push block 71 to move, and the push block 71 pushes the reinforcement rod 6 to extend out of the positioning tube 5 through the guide slope 711, so that the reinforcement rod 6 is inserted into the side wall of the foundation pit, thereby realizing the limited reinforcement of the positioning tube 5, increasing the positioning effect of the positioning tube 5, and further reducing the phenomenon of the casing being offset. The setting of the clamping ring 11 improves the connection stability of the upper tube 1 and the lower tube 2. The setting of the sealing gasket improves the connection sealing of the upper tube 1 and the lower tube 2.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A karst pile foundation casing, characterized in that: The invention comprises an upper tube (1), a lower tube (2) connected to the upper tube (1), a connecting ring (3) arranged on a side of the upper tube (1) close to the lower tube (2), a positioning screw (4) used to connect the connecting ring (3) and the lower tube (2), and a positioning tube (5) threadedly connected to the positioning screw (4); a reinforcing rod (6) and an adjusting component (7) for driving the reinforcing rod (6) to extend and retract are arranged at one end of the positioning tube (5) away from the positioning screw (4); the reinforcing rod (6) and the positioning tube (5) are arranged vertically; a mounting groove (51) and a mounting hole (52) are provided on the positioning tube (5); the mounting hole (52) is communicated with the mounting groove (51); the adjusting component (7) is arranged in the mounting groove (51); the reinforcing rod (6) passes through the mounting hole (52) and is slidably connected to the positioning tube (5).

2. The karst pile foundation casing according to claim 1, characterized in that: The adjustment assembly (7) comprises a pushing block (71) and a pushing rod (72) arranged in the installation groove (51); the pushing block (71) is provided with a guiding inclined surface (711); one end of the reinforcing rod (6) extends into the installation groove (51) and is slidably connected to the guiding inclined surface (711); one end of the pushing rod (72) is connected to the pushing block (71) and the other end abuts against the positioning screw (4).

3. The karst pile foundation casing according to claim 2, characterized in that: A limiting slide groove (712) is provided on the guiding inclined surface (711), one end of the reinforcing rod (6) is connected to a limiting slider (61), the limiting slider (61) is slidably connected to the limiting slide groove (712), and a baffle (713) is provided at the opening of the limiting slide groove (712) for limiting the sliding of the limiting slider (61).

4. The karst pile foundation casing according to claim 3, characterized in that: A first tip plug (62) is provided at one end of the reinforcing rod (6) away from the pushing block (71).

5. The karst pile foundation casing according to claim 4, characterized in that: A limit spring (73) is arranged in the installation groove (51), one end of the limit spring (73) is connected to the pushing block (71), and the other end is connected to the positioning cylinder (5).

6. The karst pile foundation casing according to claim 5, characterized in that: A second tip plug (53) is provided at one end of the positioning cylinder (5) away from the positioning screw (4).

7. The karst pile foundation casing according to claim 1, characterized in that: A clamping groove (21) is provided at one end of the lower tube (2) close to the upper tube (1), and a clamping ring (11) is provided at one end of the upper tube (1) close to the lower tube (2), and the clamping ring (11) is clamped with the clamping groove (21).

8. The karst pile foundation casing according to claim 7, characterized in that: A sealing ring (22) is provided at one end of the lower cylinder (2) close to the upper cylinder (1).

9. The karst pile foundation casing according to claim 8, characterized in that: The number of the positioning screw (4) and the number of the positioning cylinder (5) are both multiple, and the positioning screw (4) is threadedly connected to the clamping ring (11).

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