Karst region deep pile casing replacement device

Abstract

This invention belongs to the field of deep pile casing construction technology in karst areas, specifically a deep pile casing replacement device for karst areas, comprising: an annular pad for supporting the overall device structure; a movable wheel on the bottom surface; multiple support rods evenly distributed on the top surface of the annular pad; a support plate fixedly installed on the top of the support rods; and a winding wheel rotatably connected to the top surface of the support plate. The deep pile casing replacement device for karst areas described in this invention uses an annular pad to engage a clamping plate on the casing. The clamping plate is then lifted using a winding rope and a hook in conjunction with a receiving plate, causing the clamping plate to move the casing upwards. Finally, the casing is pulled out, completing the replacement of the casing with the external template. Because the clamping plate engages the upper and lower ends of the casing through a horizontal section, the area of ​​the casing subjected to compressive force increases when it is lifted, thus limiting localized stress and preventing deformation and damage.

Description

Technical Field

[0001] This invention belongs to the field of deep pile casing construction technology in karst areas, specifically a deep pile casing replacement device in karst areas. Background Technology

[0002] Karst formations, including caves, solution channels, fissures, underground rivers, karst buds, sinkholes, and stalactites, are the result of the chemical and physical effects of water on soluble rocks. When drilling in karst areas, deep pile casings are used for isolation and protection, and these casings need to be removed and recycled after drilling is completed. During construction, concrete is filled into the deep pile casings. To prevent concrete loss when the casings are removed, workers insert a reinforcing cage and external formwork inside the casings. The deep pile casings are then replaced with reinforcing cages and external formwork.

[0003] During the extraction of the deep pile casing, workers use clamps to hold the top of the casing, and then use a crane to lift it up. In this process, the clamps need to exert sufficient clamping force on the top of the casing to prevent it from falling off when lifted. However, the casing is prone to deformation and damage when over-clamped. Therefore, it is necessary to design a device that will not damage the casing to complete the above lifting and replacement process.

[0004] Therefore, the present invention provides a deep pile casing replacement device for karst areas. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this invention to solve its technical problem is: a deep pile casing replacement device for karst areas, comprising:

[0007] An annular pad is used to support the overall structure of the device; casters are provided on the bottom surface.

[0008] Multiple support rods are provided and are evenly distributed on the top surface of the annular pad.

[0009] A support plate is fixedly installed at the top of the support rod;

[0010] A winding reel is rotatably connected to the top surface of the support plate;

[0011] The winding rope has one end wound around the winding surface of the winding wheel, and the other end passes through the support plate and is located below the support plate;

[0012] A hook is installed at the end of the winding rope located below the support plate;

[0013] The casing, which is the main body of the deep pile casing, is located below the annular pad.

[0014] The external formwork is inserted into the cylinder in a ring shape, and a steel cage is installed inside.

[0015] The card plate has multiple parts, including vertical and horizontal parts. The vertical parts are attached to the annular circumferential surface of the cylinder, and the horizontal parts are attached to the upper and lower surfaces of the cylinder.

[0016] The receiving plate is installed on the top surface of the horizontal part of the card plate; and it has through holes that are compatible with the hook.

[0017] Preferably, a first hydraulic component is installed on the vertical portion of the card plate, and a connecting frame is fixedly connected to the top end of the output end of the first hydraulic component. The end of the connecting frame away from the first hydraulic component points vertically to the horizontal portion of the card plate. A rectangular hole is opened in the horizontal portion of the card plate, and a brake plate is inserted into the rectangular hole. The top surface of the brake plate is fixedly connected to the end of the connecting frame away from the first hydraulic component.

[0018] Preferably, a first telescopic rod is installed on the top surface of the horizontal portion of the card plate, and a scraper is fixedly connected to the output end of the first telescopic rod. The scraper is inserted into a through hole on the receiving plate.

[0019] Preferably, a connecting rod is provided between the clamping plates, and multiple auxiliary plates are provided on the bottom surface of the cylinder between the clamping plates, the auxiliary plates not extending into the interior of the cylinder; a connecting plate is fixedly connected to the side of the auxiliary plate, and a through groove is opened on the side of the connecting plate that is attached to the annular circumference of the cylinder, through which the connecting rod passes.

[0020] Preferably, a pair of magnetic strips are provided on the side of the linkage plate.

[0021] Preferably, the annular pad has multiple sets of insertion slots on its side, and insertion rods are inserted into the insertion slots. An auxiliary pad is provided at one end of the insertion rod outside the insertion slot, and the bottom surface of the auxiliary pad is on the same plane as the bottom surface of the annular pad.

[0022] Preferably, the top surface of the annular pad is provided with a plurality of second hydraulic components, the output end of the second hydraulic components passing through the annular pad; and a pressure plate is fixedly connected to the bottom end of the output end of the second hydraulic components.

[0023] Preferably, a plurality of anti-slip heads are inserted through the top surface of the pressure plate, and the bottom end of the anti-slip head is set to be conical and located below the pressure plate.

[0024] Preferably, the top surface of the annular pad is provided with multiple vibration components, and the output end of the vibration components points towards the center of the cylinder.

[0025] Preferably, the output end of the vibration component is provided with a rubber head.

[0026] The beneficial effects of this invention are as follows:

[0027] 1. The karst deep pile casing replacement device of the present invention uses an annular pad to clamp a plate on the casing. The plate is lifted by a winding rope and a hook with a receiving plate, causing the plate to move the casing upward. Finally, the casing is pulled out, completing the replacement of the casing with the external template. Since the clamping plate contacts and clamps the upper and lower ends of the casing through the horizontal part, the area of ​​the casing subjected to the compressive force is increased when the casing is lifted, so the local stress on the casing is limited and it is not easily deformed or damaged.

[0028] 2. The karst deep pile casing replacement device of the present invention, by installing an auxiliary pad on the side of the annular pad, inserts the plug rod into the plug groove during use, so that the auxiliary pad is restricted on the annular pad, thereby improving the support effect of the annular pad and preventing the annular pad from being excessively embedded in the ground when the bottom surface is soft; the moving wheels on the bottom surface of the annular pad 1 need to be removed during use and installed when moving. Attached Figure Description

[0029] The invention will now be further described with reference to the accompanying drawings.

[0030] Figure 1 This is a perspective view of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure on the winding reel of the present invention;

[0032] Figure 3 This is a schematic diagram of the upper structure of the cylindrical body of the present invention;

[0033] Figure 4 This is the invention Figure 3 Enlarged diagram of part A in the middle;

[0034] Figure 5 This is a schematic diagram of the card plate of the present invention;

[0035] Figure 6 This is a schematic diagram of the connection between the card plate and the auxiliary plate of the present invention;

[0036] Figure 7 This is a schematic diagram of the connection between the linkage plate and the auxiliary plate of the present invention;

[0037] Figure 8 This is a schematic diagram of the annular pad of the present invention;

[0038] Figure 9 This is a schematic diagram of the structure below the annular pad of the present invention;

[0039] Figure 10 This is the invention Figure 9 Enlarged diagram of section B;

[0040] Figure 11 This is a schematic diagram of the auxiliary pad of the present invention.

[0041] In the diagram: 1. Annular pad; 11. Support rod; 12. Support plate; 13. Winding reel; 14. Winding rope; 15. Hook; 2. Cylinder; 21. External template; 3. Clamping plate; 31. Receiving plate; 32. First hydraulic component; 33. Connecting frame; 34. Brake plate; 35. First telescopic rod; 36. Scraper; 4. Auxiliary plate; 41. Linkage plate; 42. Connecting rod; 43. Magnetic strip; 5. Insertion slot; 51. Insertion rod; 52. Auxiliary pad; 53. Second hydraulic component; 54. Pressure plate; 55. Anti-slip head; 6. Vibration assembly; 61. Rubber head. Detailed Implementation

[0042] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0043] like Figures 1 to 5 As shown, an embodiment of the present invention provides a deep pile casing replacement device for karst areas, comprising:

[0044] An annular pad 1 is used to support the overall structure of the device; the bottom surface is equipped with casters.

[0045] Multiple support rods 11 are provided and are evenly distributed on the top surface of the annular pad 1;

[0046] The support plate 12 is fixedly installed on the top of the support rod 11;

[0047] The winding reel 13 is rotatably connected to the top surface of the support plate 12;

[0048] The winding rope 14 has one end wound around the winding surface of the winding wheel 13, and the other end passes through the support plate 12 and is located below the support plate 12.

[0049] The hook 15 is installed at the end of the winding rope 14 located below the support plate 12;

[0050] The cylinder 2 is the main body of the deep pile casing and is located below the annular pad 1;

[0051] The external formwork 21 is inserted into the cylinder 2 in a ring shape, and a steel cage is installed inside it;

[0052] The card plate 3 is provided in multiple parts, including vertical and horizontal parts. The vertical part is attached to the annular circumferential surface of the cylinder 2, and the horizontal part is attached to the upper and lower surfaces of the cylinder 2.

[0053] The receiving plate 31 is installed on the top surface of the horizontal part of the card plate 3; and has a through hole adapted to the hook 15;

[0054] In this embodiment of the invention, during drilling, the casing 2 of the deep pile casing will follow the drilled hole to isolate it. When drilling is complete, the casing 2 is supported on the inner wall of the hole. Simultaneously, the outer template 21 is inserted into the casing 2, and then concrete is filled into the casing 2. When removing the casing 2, the annular pad 1 is moved above the hole opening, ensuring that the center of the annular pad 1 is aligned with the center of the hole. Then, the hook 15 is inserted into the through hole on the receiving plate 31, and the center of the winding wheel 13 is positioned at the drive motor. The output end is connected; the drive motor is started, and the winding wheel 13 is driven to wind the winding rope 14. The winding rope 14 drives the receiving plate 31 hooked by the hook 15 to move upward. The receiving plate 31 drives the cylinder 2 to move upward through the clamping plate 3. Finally, the cylinder 2 is pulled out, completing the replacement of the cylinder 2 with the outer template 21. Since the clamping plate 3 contacts and clamps the upper and lower ends of the cylinder 2 through the horizontal part, the area of ​​the cylinder 2 subjected to the compressive force increases when the cylinder 2 is lifted. Therefore, the local stress on the cylinder 2 is limited and it is not easy to deform or be damaged.

[0055] The vertical portion of the clamping plate 3 is equipped with a first hydraulic component 32. A connecting frame 33 is fixedly connected to the top of the output end of the first hydraulic component 32. The end of the connecting frame 33 away from the first hydraulic component 32 points vertically to the horizontal portion of the clamping plate 3. A rectangular hole is opened in the horizontal portion of the clamping plate 3, and a brake plate 34 is inserted into the rectangular hole. The top surface of the brake plate 34 is fixedly connected to the end of the connecting frame 33 away from the first hydraulic component 32. In use, the first hydraulic component 32 drives the connecting frame 33 to move. The connecting frame 33 drives the brake plate 34 to pass through the horizontal portion of the clamping plate 3 and press against the top surface of the cylinder 2. Therefore, the brake plate 34 increases the fastening force between the clamping plate 3 and the cylinder 2 and improves the connection firmness between the clamping plate 3 and the cylinder 2.

[0056] A first telescopic rod 35 is installed on the top surface of the horizontal part of the card plate 3. A scraper 36 is fixedly connected to the output end of the first telescopic rod 35. The scraper 36 is inserted into the through hole on the receiving plate 31. When filling concrete into the cylinder 2, the concrete may overflow and block the through hole on the receiving plate 31. As the concrete solidifies, it is difficult to remove the concrete from the through hole. Therefore, a scraper 36 is provided. The scraper 36 is driven by the first telescopic rod 35 to move back and forth in the through hole and stops when it passes through the through hole with the hook 15. The concrete in the through hole is scraped off by the scraper 36 to prevent the concrete from blocking the through hole and solidifying.

[0057] like Figures 6 to 7As shown, a connecting rod 42 is provided between the clamping plates 3. Multiple auxiliary plates 4 are provided on the bottom surface of the cylinder 2 between the clamping plates 3. The auxiliary plates 4 do not extend into the interior of the cylinder 2. A connecting plate 41 is fixedly connected to the side of the auxiliary plate 4. A through groove is opened on the side of the connecting plate 41 that is attached to the annular circumference of the cylinder 2. The connecting rod 42 passes through the through groove. In use, the auxiliary plate 4 is inserted into the bottom surface of the cylinder 2. The through groove on the connecting plate 41 is embedded through the connecting rod 42, so that the clamping plate 3 and the auxiliary plate 4 are integrated. That is, the force-bearing area of ​​the cylinder 2 is further increased, and the probability of damage to the cylinder 2 is further reduced.

[0058] A pair of magnetic strips 43 are provided on the side of the linkage plate 41; the magnetic strips 43 are attached to the surface of the cylinder 2 to prevent the linkage plate 41 from falling off the side of the cylinder 2 during use.

[0059] like Figures 8 to 11 As shown, the annular pad 1 has multiple sets of insertion slots 5 on its side. Insertion rods 51 are inserted into the inside of the insertion slots 5. An auxiliary pad 52 is provided at one end of the insertion rod 51 outside the insertion slot 5. The bottom surface of the auxiliary pad 52 is on the same plane as the bottom surface of the annular pad 1. In use, the insertion rod 51 is inserted into the insertion slot 5, so that the auxiliary pad 52 is restricted on the annular pad 1, which improves the support effect of the annular pad 1 and prevents the annular pad 1 from being overly embedded in the ground when the bottom surface is soft. The moving wheels on the bottom surface of the annular pad 1 need to be removed during use and installed when moving.

[0060] The top surface of the annular pad 1 is provided with multiple second hydraulic components 53, and the output end of the second hydraulic component 53 passes through the annular pad 1; the bottom end of the output end of the second hydraulic component 53 is fixedly connected to a pressure plate 54; when the ground is tilted, since the drill hole is vertically downward, the annular pad 1 needs to be kept horizontal, so the second hydraulic component 53 is provided. The output end of the second hydraulic component 53 drives the pressure plate 54 to press against the bottom surface, supporting part of the annular pad 1 so that the annular pad 1 is kept horizontal, thus improving the flexibility of use.

[0061] Multiple anti-slip heads 55 are inserted through the top surface of the pressure plate 54. The bottom end of the anti-slip head 55 is set as a cone and located below the pressure plate 54. When the pressure plate 54 presses against the ground, the cone-shaped bottom end of the anti-slip head 55 on the pressure plate 54 inserts into the ground, improving the anti-slip effect of the pressure plate 54 pressing against the bottom surface and optimizing the support stability.

[0062] Multiple vibration components 6 are provided on the top surface of the annular pad 1. The output end of the vibration component 6 points towards the center of the cylinder 2. When the cylinder 2 is lifted, the vibration component 6 is activated. The output end of the vibration component 6 intermittently impacts the cylinder 2, causing the soil attached to the surface of the cylinder 2 to fall off, which facilitates subsequent cleaning.

[0063] A rubber head 61 is provided at the end of the output end of the vibration component 6; the rubber head 61 at the end of the output end of the vibration component 6 strikes the surface of the cylinder 2 instead of the output end. The rubber head 61 has a strong buffering capacity to prevent the cylinder 2 from deforming and denting when it is struck.

[0064] During operation, the casing 2 of the deep pile casing will follow the drilling process to isolate the drilled hole. Upon completion of drilling, the casing 2 will be supported against the inner wall of the hole. Simultaneously, the external template 21 will be inserted into the casing 2, followed by concrete filling. When removing the casing 2, the annular pad 1 will be moved above the hole opening, ensuring that the center of the annular pad 1 is aligned vertically with the center of the hole. Then, the hook 15 will be inserted into the through hole on the receiving plate 31, with the center of the winding wheel 13 connected to the output end of the drive motor. The drive motor will be started, causing the winding wheel 13 to wind up the winding rope 14. The winding rope 14 drives the hook 15 to hook the receiving plate 31 upward. The receiving plate 31 drives the cylinder 2 upward through the clamping plate 3. Finally, the cylinder 2 is pulled out, completing the replacement of the cylinder 2 with the outer template 21. Since the clamping plate 3 contacts and clamps the upper and lower ends of the cylinder 2 through the horizontal part; in use, the first hydraulic component 32 drives the connecting frame 33 to move. The connecting frame 33 drives the brake plate 34 to pass through the horizontal part of the clamping plate 3 and squeeze the top surface of the cylinder 2. Therefore, the brake plate 34 increases the fastening force between the clamping plate 3 and the cylinder 2 and improves the connection firmness between the clamping plate 3 and the cylinder 2.

[0065] When filling the cylinder 2 with concrete, the concrete may overflow and block the through holes on the receiving plate 31. As the concrete hardens, it is difficult to remove the concrete from the through holes. Therefore, a scraper 36 is provided. The scraper 36 is driven by the first telescopic rod 35 to move back and forth in the through holes and stops when the hook 15 passes through the through holes. The concrete in the through holes is scraped off by the scraper 36. During use, the auxiliary plate 4 is inserted into the bottom surface of the cylinder 2. The through groove on the connecting plate 41 is embedded by the connecting rod 42, so that the clamping plate 3 and the auxiliary plate 4 are integrated. That is, the force-bearing area of ​​the cylinder 2 is further increased, and the probability of damage to the cylinder 2 is further reduced. The magnetic strip 43 is attached to the surface of the cylinder 2 to prevent the connecting plate 41 from falling off the side of the cylinder 2 during use.

[0066] During use, the plug rod 51 is inserted into the plug groove 5, which restricts the auxiliary pad 52 onto the annular pad 1, improving the support effect of the annular pad 1 and preventing the annular pad 1 from being excessively embedded in the ground when the bottom surface is soft. When the ground is tilted, since the drill hole is vertically downward, the annular pad 1 needs to be kept horizontal. Therefore, a second hydraulic component 53 is provided. The output end of the second hydraulic component 53 drives the pressure plate 54 to press against the bottom surface, partially supporting the annular pad 1 to keep it horizontal and improve the flexibility of use. When the pressure plate 54 presses against the ground, the conical end of the anti-slip head 55 on the pressure plate 54 is inserted into the ground. When the cylinder 2 is lifted, the vibration component 6 is activated. The output end of the vibration component 6 intermittently impacts the cylinder 2, causing the soil attached to the surface of the cylinder 2 to fall off. The rubber head 61 at the output end of the vibration component 6 impacts the surface of the cylinder 2 instead of the output end. The rubber head 61 has a strong buffering capacity to prevent the cylinder 2 from deforming and denting when impacted.

[0067] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A karst region deep pile casing replacement device, characterized in that: Include: Annular base plate (1) for the support of the overall device structure; The bottom surface is provided with a moving wheel; Supporting rod (11) is provided with multiple and is uniformly arranged on the top surface of the annular base plate (1); Supporting plate (12) is fixedly installed at the top end of the supporting rod (11); Winding wheel (13) is rotatably connected to the top surface of the supporting plate (12); The winding rope (14) is wound on the winding surface of the winding wheel (13) at one end, and the other end penetrates the supporting plate (12) and is located below the supporting plate (12); The hook (15) is installed at the end of the winding rope (14) below the supporting plate (12); The cylinder (2) is the main body of the deep pile casing, located below the annular base plate (1); The outer hanging formwork (21) is annularly inserted into the cylinder (2), and the inside is provided with a steel reinforcement cage; The clamping plate (3) is provided with multiple, including vertical part and horizontal part, the vertical part is attached to the annular surface of the cylinder (2), and the horizontal part is attached to the upper and lower surfaces of the cylinder (2); The receiving plate (31) is installed on the top surface of the horizontal part of the clamping plate (3); and a through hole matched with the hook (15) is formed; The connecting rod (42) is arranged between the clamping plates (3), and a plurality of auxiliary plates (4) are arranged on the bottom surface of the cylinder (2) and between the clamping plates (3), the auxiliary plates (4) do not extend into the inside of the cylinder (2); The side surface of the auxiliary plate (4) is fixedly connected with the linkage plate (41), one side of the linkage plate (41) attached to the annular surface of the cylinder (2) is provided with a through groove, and the connecting rod (42) penetrates the through groove; A pair of magnetic strips (43) are arranged on the side surface of the linkage plate (41).

2. The karst area deep pile casing replacement device according to claim 1, characterized in that: The vertical part of the clamping plate (3) is provided with a first hydraulic component (32), and the top end of the output end of the first hydraulic component (32) is fixedly connected with a connecting frame (33), one end of the connecting frame (33) away from the first hydraulic component (32) is vertically directed to the horizontal part of the clamping plate (3), a rectangular hole is formed in the horizontal part of the clamping plate (3), a brake plate (34) is inserted into the rectangular hole, and the top surface of the brake plate (34) is fixedly connected with the end of the connecting frame (33) away from the first hydraulic component (32).

3. The karst area deep pile casing replacement device according to claim 1, characterized in that: The top surface of the horizontal part of the clamping plate (3) is provided with a first telescopic rod (35), and the end of the output end of the first telescopic rod (35) is fixedly connected with a scraper (36), the scraper (36) is inserted into the through hole on the receiving plate (31).

4. The karst area deep pile casing replacement device according to claim 1, characterized in that: A plurality of insertion grooves (5) are formed in the side surface of the annular base plate (1), the insertion grooves (5) are inserted with insertion rods (51), one end of the insertion rod (51) outside the insertion groove (5) is provided with an auxiliary base plate (52), and the bottom surface of the auxiliary base plate (52) is in the same plane with the bottom surface of the annular base plate (1).

5. The karst area deep pile casing replacement device according to claim 1, characterized in that: A plurality of second hydraulic components (53) are arranged on the top surface of the annular base plate (1), the output end of the second hydraulic component (53) penetrates the annular base plate (1); and the bottom end of the output end of the second hydraulic component (53) is fixedly connected with a pressing plate (54).

6. The karst area deep pile casing replacement device according to claim 5, characterized in that: The top surface of the pressing plate (54) is inserted through a plurality of anti-skid heads (55), the bottom end of the anti-skid head (55) is tapered and located below the pressing plate (54).

7. The karst area deep pile casing replacement device according to claim 1, characterized in that: The top surface of the annular base plate (1) is provided with a plurality of vibration assemblies (6), and the output end of the vibration assembly (6) points to the center direction of the cylinder (2).

8. The karst area deep pile casing replacement device according to claim 7, characterized in that: The end of the output end of the vibration assembly (6) is provided with a rubber head (61).

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