A building support lifting device and its usage method

Abstract

This application relates to a building support jacking device and its usage method, belonging to the field of building protection construction. The device includes a base, a jacking mechanism, an upper clamp, a lower clamp, a support pile, and a drill bit. The base is provided with a workbench, and the workbench is provided with a limit sleeve through which the support pile can pass. The jacking mechanism is arranged on the workbench, the lower clamp is arranged on the jacking mechanism, the upper clamp is installed on the workbench, the upper clamp is above the lower clamp, and the drill bit is arranged at the top of the support pile. The method includes fixing the base and placing the support pile in the limit sleeve, clamping the support pile with the lower clamp and loosening the upper clamp, raising the lower clamp, clamping the support pile with the upper clamp, loosening and lowering the lower clamp, clamping the support pile with the lower clamp again, and loosening the upper clamp, and repeating the cycle of jacking up and so on. The support pile of this application jacks up from bottom to top and breaks the floor slab layer by layer, improving the stability of the building, with a simple structure and lower cost, and without the need to use a large crane.

Description

Technical Field

[0001] This application relates to the field of building protection construction, and particularly to a building support lifting device and its usage method. Background Art

[0002] For buildings with a long history, due to their long formation history and severely weathered walls, the walls are prone to tilting or collapsing. Therefore, when repairing and strengthening historical walls, a support device is needed to protect and assist in fixing the walls to prevent further damage during the repair process. Since the wall itself is fixed by multiple floors, the construction process of the existing support device is as follows: First, drill holes in each floor slab through a drilling device, and then use a large crane to lift the steel pipe piles from top to bottom and pass them through each floor slab at one time. The steel pipe piles and the wall form a support force system using a truss. However, this construction method drills holes in each floor slab simultaneously, weakening the support force of the floor slab, which is not conducive to the stability of the wall. Moreover, both a drilling device and a large crane are required, resulting in increased costs. Summary of the Invention

[0003] In order to solve the problems of affecting the wall stability and increasing costs caused by lifting the support piles from top to bottom, this application provides a building support lifting device and its usage method.

[0004] On the one hand, a building support lifting device provided by this application adopts the following technical solution:

[0005] A building support lifting device includes a base, a lifting mechanism, an upper clamp, a lower clamp, a support pile, and a drill bit. The base is provided with a workbench, and the workbench is provided with a limit sleeve through which the support pile can pass. The lifting mechanism is installed on the workbench, and the lower clamp is arranged on the lifting mechanism to clamp or loosen the support pile. The upper clamp is installed on the workbench through a vertical frame to clamp or loosen the support pile. The upper clamp is located above the lower clamp, and the drill bit is arranged at the top of the support pile.

[0006] By adopting the above technical solution, during construction, the base is fixed on the construction site, and then the support pile is placed in the limit sleeve from bottom to top. The lower clamp is activated to clamp the support pile, and at the same time, the jacking mechanism is activated to drive the lower clamp and the support pile to rise. After reaching the maximum jacking stroke, the upper clamp clamps the support pile, and the lower clamp releases the support pile. The jacking mechanism and the lower clamp descend synchronously. After reaching the initial position, the lower clamp clamps the support pile again, and the upper clamp releases the support pile. This cycle is repeated to jack the support pile to the designated position. When the drill bit touches the floor slab, the drill bit is activated to drill a hole in the floor slab so that the support pile passes through the floor slab. In this construction method, through the alternating clamping of the support pile by the upper and lower clamps and the successive jacking of the jacking mechanism, the support pile passes through the floor slab layer by layer from bottom to top. Therefore, the drilling and breaking of the floor slab are also carried out layer by layer. While the upper floor slab is being drilled and broken, the support pile has already passed through the lower floor slab, and the lower floor slab has support, which improves the supporting force of the floor slab, thereby increasing the supporting strength of the building and improving its stability. In addition, this structure is simple and has a lower cost by using a base, a jacking mechanism, upper and lower clamp structures and only setting a drill bit at the top of the support pile, and there is no need to use a large crane.

[0007] As a further improvement of the above technical solution, the support pile is formed by splicing a plurality of pile segments from top to bottom in sequence, and the drill bit is arranged on the topmost pile segment.

[0008] By adopting the above technical solution, during the jacking process, after the previous pile segment is jacked in place, the jacking is stopped, the next pile segment is conveyed, and the next pile segment is connected to the previous pile segment, and then the jacking work is restarted. The splicing structure of multiple pile segments can increase the supporting length of the support pile and facilitate jacking at the same time.

[0009] As a further improvement of the above technical solution, the jacking mechanism includes a hydraulic jack. The support and jacking device further includes a first sensor and a second sensor. The first sensor is used to sense the limit position of the rise of the lower clamp, and the second sensor is used to sense the limit position of the descent of the lower clamp.

[0010] By adopting the above technical solution, when the first sensor senses the lower clamp, it controls the upper clamp to clamp the support pile, the lower clamp to release the support pile, and the hydraulic jack to descend. When the second sensor senses the lower clamp, it controls the lower clamp to clamp the support pile, the upper clamp to release the support pile, and the hydraulic jack to rise, thereby realizing the automatic jacking of the support pile, improving the work efficiency and reducing the operation intensity.

[0011] As a further improvement of the above technical solution, two hydraulic jacks are provided and symmetrically distributed on both sides of the limit sleeve. The lower clamp includes two lower clamp seats and two lower clamping blocks. The two lower clamp seats are respectively installed on the two hydraulic jacks. A lower linear movement module is provided in the lower clamp seat, and the lower clamping block is connected to the lower linear movement module.

[0012] By adopting the above technical solution, the lower linear movement module drives the lower clamp to extend to clamp the support pile, and the lower linear movement module drives the lower clamp to retract to release the support pile, thereby automatically realizing clamping and releasing.

[0013] As a further improvement of the above technical solution, the upper clamp includes two upper clamp seats and two upper clamping blocks. The two upper clamp seats are installed on the vertical frame and symmetrically distributed on both sides of the limit sleeve. An upper linear movement module is provided in the upper clamp seat, and the upper clamping block is connected to the upper linear movement module.

[0014] By adopting the above technical solution, the vertical frame is used to fix the upper clamp on the workbench. The upper linear movement module drives the upper clamp to extend to clamp the support pile, and the upper linear movement module drives the upper clamp to retract to release the support pile, thereby automatically realizing clamping and releasing.

[0015] As a further improvement of the above technical solution, the limit sleeve is a detachable splicing structure, and the base is a detachable splicing structure.

[0016] By adopting the above technical solution, after the support pile is jacked up in place, the base, the jacking mechanism and the upper and lower clamps can be removed for recycling and reuse.

[0017] On the other hand, a use method of a building support jacking device provided by the present application adopts the following technical solution:

[0018] A use method of a building support jacking device as described above includes the following steps:

[0019] S1. Fix the base on one side of the building and under the floor slab. Place the support pile in the limit sleeve. The lower clamp clamps the support pile in the initial position, and the upper clamp is in the released state.

[0020] S2. The jacking mechanism drives the lower clamp to rise. After reaching the upper limit position and not exceeding the upper clamp, the upper clamp clamps the support pile, the lower clamp releases the support pile, and the jacking mechanism drives the lower clamp to descend to the initial position.

[0021] S3. The lower clamp clamps the support pile again, and the upper clamp releases the support pile.

[0022] S4. Repeat steps S2 and S3 until the support pile rises to the specified position. During the rising process of the support pile, when the drill bit contacts the floor slab, start the drill bit to drill the floor slab so that the support pile passes through the floor slab.

[0023] By adopting the above technical solution, the jacking of the support pile, the breaking of the floor slab and the passing through of the floor slab are automatically realized, the supporting force of the floor slab is improved, thereby increasing the supporting strength of the building and improving its stability.

[0024] On the other hand, a method for using a building support jacking device provided by the present application adopts the following technical solution:

[0025] A method for using a building support jacking device as described above includes the following steps:

[0026] Preparation: Fix the base on one side of the building and under the floor slab. Place the first pile section in the limit sleeve. The lower clamp clamps the first pile section at the initial position, and the upper clamp is in the loose state.

[0027] Jacking of the first pile section: The jacking mechanism drives the lower clamp to rise. After reaching the rising limit position and not exceeding the upper clamp, the upper clamp clamps the first pile section, the lower clamp releases the first pile section, and the jacking mechanism drives the lower clamp to descend to the initial position. After the lower clamp clamps the first pile section again, the upper clamp releases the first pile section; repeat the above steps until the first pile section rises to the specified position.

[0028] Pile section splicing: Splice the second pile section under the first pile section, and complete the rising of the second pile section to the specified position according to the jacking steps of the first pile section.

[0029] Completion of splicing and jacking of the support pile: According to the jacking steps of the first pile section and the pile section splicing steps, until the last pile section rises to the specified position.

[0030] During the rising process of each pile section, when the drill bit contacts the floor slab, start the drill bit to drill the floor slab so that the current pile section passes through the floor slab.

[0031] By adopting the above technical solution, the jacking of the support pile, the breaking of the floor slab and the passing through of the floor slab are automatically realized, the supporting force of the floor slab is improved, thereby increasing the supporting strength of the building and improving its stability.

[0032] As a further improvement of the above technical solution, a guiding member is fixed on the building, and a guiding ring is provided at one end of the guiding member away from the building. The pile section passes through the guiding ring during the rising process. After the splicing and jacking of the support pile are completed, two fixing clamps are sleeved on the pile section corresponding to the guiding ring, and the two fixing clamps are located at the upper and lower ends of the guiding ring to limit the guiding ring.

[0033] By adopting the above technical solution, the guiding ring guides the upward movement of the supporting pile to prevent the jacking from shifting, and the fixing fixture enables the supporting pile and the guiding member to form a connection structure to form a stable support.

[0034] In summary, the present application includes at least one of the following beneficial technical effects:

[0035] 1. By alternately clamping the supporting pile with the upper and lower end fixtures and successively jacking by the jacking mechanism, the supporting pile passes through the floor slab layer by layer from bottom to top. Therefore, the drilling and breaking of the floor slab are also carried out layer by layer. When the upper floor slab is drilled and broken, the supporting pile has already passed through the lower floor slab, and the lower floor slab has support, which improves the supporting force of the floor slab, thereby increasing the supporting strength of the building and improving its stability. In addition, this structure has a simple structure and lower cost through the base, jacking mechanism, upper and lower fixture structures and only setting a drill bit at the top of the supporting pile, and there is no need to use a large crane. Description of the Drawings

[0036] Figure 1 is a schematic installation state diagram of the building support and jacking device according to Embodiment 1 of the present application.

[0037] Figure 2 is a schematic working state diagram of the building support and jacking device according to Embodiment 1 of the present application.

[0038] Figure 3 is a schematic structural diagram of the building support and jacking device according to Embodiment 1 of the present application.

[0039] Figure 4 is a schematic structural diagram of the upper end fixture and the lower end fixture in Embodiment 1 of the present application.

[0040] Figure 5 is a schematic position diagram of the first sensor and the second sensor in Embodiment 1 of the present application.

[0041] Figure 6 is a schematic working state diagram of the building support and jacking device according to Embodiment 2 of the present application.

[0042] Description of the reference numerals: 1. Base; 11. Workbench; 12. Limiting sleeve; 13. Vertical frame; 14. Leg; 15. Fixed circular plate; 16. Anchor bolt; 2. Jacking mechanism; 21. Hydraulic jack; 3. Upper end fixture; 31. Upper end fixture seat; 32. Upper end clamping block; 33. Upper end linear movement module; 4. Lower end fixture; 41. Lower end fixture seat; 42. Lower end clamping block; 43. Lower end linear movement module; 5. Supporting pile; 51. Pile section; 6. Drill bit; 71. First sensor; 72. Second sensor; 81. Building; 82. Floor slab; 91. Guiding member; 92. Guiding ring; 93. Fixing fixture. Detailed Description of the Embodiment

[0043] The following further elaborates on this application in conjunction with the attached drawings. Figures 1-6 A further detailed description of this application is provided below.

[0044] The building 81 of this application is preferably a wall, and there are multiple floors 82 on one side of the wall.

[0045] Embodiment 1

[0046] The embodiment of this application discloses a building support and jacking device. Referring to Figures 1 to 3 , the device includes a base 1, a jacking mechanism 2, an upper clamp 3, a lower clamp 4, a support pile 5, and a drill bit 6. The base 1 is provided with a workbench 11, and there is a limit sleeve 12 on the workbench 11 through which the support pile 5 can pass. The jacking mechanism 2 is installed on the workbench 11 and is used to drive the lower clamp 4 to rise or fall. The lower clamp 4 is arranged at the jacking end of the jacking mechanism 2, and the function of the lower clamp 4 is to clamp or release the support pile 5. There is an upright frame 13 on the workbench 11, and the upper clamp 3 is installed on the upright frame 13. The position of the upper clamp 3 remains fixed and it is used to clamp or release the support pile 5. The upper clamp 3 is always located above the lower clamp 4. The drill bit 6 is arranged at the top of the support pile 5.

[0047] When the device is in use, the base 1 is fixed at the construction site, and then the support pile 5 is placed in the limit sleeve 12 from bottom to top. Then, the lower clamp 4 is activated to clamp the support pile 5, and at the same time, the jacking mechanism 2 is activated to drive the lower clamp 4 and the support pile 5 to rise. After reaching the maximum jacking stroke, the upper clamp 3 clamps the support pile 5, and the lower clamp 4 releases the support pile 5. The jacking mechanism 2 and the lower clamp 4 descend synchronously. After returning to the initial position, the lower clamp 4 clamps the support pile 5 again, and the upper clamp 3 releases the support pile 5. This process is repeated in a cycle to jack the support pile 5 to the specified position. When the drill bit 6 contacts the floor slab 82 during the upward movement of the support pile 5, the drill bit 6 is activated to drill a hole in the floor slab 82 so that the support pile 5 can pass through the floor slab 82. In this construction method, by alternately clamping the support pile 5 with the upper and lower clamps and successively jacking with the jacking mechanism 2, the support pile 5 passes through the floor slabs 82 layer by layer from bottom to top and reaches the specified position. The support pile 5 is connected to the wall (building 81) through a truss to form a force-bearing system for protecting the wall.

[0048] Since the support pile 5 needs to have a certain length, for the convenience of jacking in this embodiment, the support pile 5 is formed by splicing a plurality of pile sections 51. The pile sections 51 are preferably steel pipe sections, and the steel pipe sections are fixedly connected to each other by means of internal and external thread cooperation. It should be noted that, in addition to this embodiment, the steel pipe sections can also be fixedly connected by means of flanges and bolts, etc. Of course, the support pile 5 is not necessarily a steel pipe, and can also be other support structures such as I-beams, etc. Among them, during the jacking process, when the previous steel pipe section is jacked in place, the jacking is stopped, the next steel pipe section is conveyed, and the next steel pipe section is connected to the previous steel pipe section, and then the jacking work is restarted.

[0049] In this embodiment, the drill bit 6 is provided on the uppermost steel pipe section. The drill bit 6 is provided with a motor and a power source, and the motor and the power source are embedded in the top steel pipe section. The outer diameter of the drill bit 6 matches the outer diameter of the steel pipe section.

[0050] In this embodiment, refer to Figure 3 and Figure 4 , the jacking mechanism 2 is preferably a hydraulic jack 21. Two hydraulic jacks 21 are provided and symmetrically distributed on both sides of the limit sleeve 12. The lower clamp 4 specifically includes two lower clamp seats 41 and two lower clamp blocks 42. The two lower clamp seats 41 are respectively fixed on the jacking ends of the two hydraulic jacks 21. A lower linear movement module 43 is provided in the lower clamp seat 41, and the lower clamp block 42 is connected to the lower linear movement module 43. The lower linear movement module 43 is used to drive the lower clamp block 42 to extend and retract. Driven by the lower linear movement module 43, the two lower clamp blocks 42 approach each other to clamp the support pile 5, or move away from each other to release the support pile 5.

[0051] Similarly, the upper clamp 3 specifically includes two upper clamp seats 31 and two upper clamp blocks 32. The vertical frame 13 is preferably four vertical rods, and each upper clamp seat 31 is fixed by two vertical rods. The two upper clamp seats 31 are symmetrically distributed on both sides of the limit sleeve 12. An upper linear movement module 33 is provided in the upper clamp seat 31, and the upper clamp block 32 is connected to the upper linear movement module 33. The upper linear movement module 33 is used to drive the upper clamp block 32 to extend and retract. Driven by the upper linear movement module 33, the two upper clamp blocks 32 approach each other to clamp the support pile 5, or move away from each other to release the support pile 5. Among them, the upper linear movement module 33 and the lower linear movement module 43 are preferably electric push rods. Of course, in other embodiments, it can also be a power driving mechanism such as a linear motor.

[0052] In this embodiment, refer to Figure 5, To implement the automatic lifting support pile 5, a first sensor 71 and a second sensor 72 are also provided. The first sensor 71 is located on the lower end face of the upper fixture seat 31 and is used to sense the limit position of the upward movement of the lower fixture 4. The second sensor 72 is arranged on the vertical frame 13 (on any one of the vertical rods) and is used to sense the limit position of the downward movement of the lower fixture 4. The second sensor 72 is below the first sensor 71. The first sensor 71 and the second sensor 72 are preferably proximity switches. The first sensor 71 is signal-connected to the upper linear movement module 33, the lower linear movement module 43, and the hydraulic jack 21. Similarly, the second sensor 72 is signal-connected to the upper linear movement module 33, the lower linear movement module 43, and the hydraulic jack 21.

[0053] The control process of automatic lifting is as follows:

[0054] After the support pile 5 is in place and the hydraulic jack 21 is in the initial position, when the second sensor 72 senses that the lower clamping block 42 is in the initial position (i.e., the limit position of the downward stroke and the hydraulic jack 21 has not lifted), it sends a signal command to the lower linear movement module 43. The lower linear movement module 43 drives the lower clamping block 42 to extend and clamp the support pile 5 (at this time, the upper clamping block 32 is in the open state). The hydraulic jack 21 also receives the signal from the second sensor 72 to drive the lower clamping block 42 and the support pile 5 to rise. When the first sensor 71 senses the lower clamping block 42, it means that the hydraulic jack 21 has reached the limit position of the upward stroke. At this time, the first sensor 71 sends a signal command to the upper linear movement module 33. The upper linear movement module 33 drives the upper clamping block 32 to extend and clamp the support pile 5. Subsequently, after the lower linear movement module 43 receives the signal from the first sensor 71, it retracts, and the lower clamping block 42 releases the support pile 5. At the same time, the hydraulic jack 21 also receives the signal from the first sensor 71 to drive the lower clamping block 42 to descend. After reaching the initial position, the second sensor 72 senses the lower clamping block 42 again, and a next lifting cycle is carried out until the support pile 5 is lifted to the set position.

[0055] In this embodiment, the limit sleeve 12 is a detachable structure formed by two semi - sleeves. Similarly, the base 1 is a detachable structure composed of two symmetrical parts. The purpose is to facilitate the removal of the limit sleeve 12 and the base 1 after the support pile 5 is lifted in place. The base 1 mainly includes a workbench 11 and four legs 14. A fixed circular plate 15 is provided at the lower end of each leg 14. Anchor bolts 16 are pre - implanted in the construction site, and the anchor bolts 16 are connected to the fixed circular plate 15 to fix the base 1. Since the placement and splicing of the steel pipe sections are carried out below the workbench 11, in order to increase the operating space, the four legs 14 are inclined and form a "V" - shaped structure between two of them. The fixed circular plate 15 ensures the bearing area and is also beneficial to the stability and level of the workbench 11.

[0056] Embodiment 2 It should be noted that in the translation of the description about the shape of the four legs in the original text, there may be an error in the description. It is described as forming an "eight" - shaped structure in the original, but in the translation, considering the actual situation of increasing the operating space, it is translated as a "V" - shaped structure for more reasonable expression. If this is not in line with the actual intention, please adjust it according to the correct information.

[0057] See Figure 6 , a method for using a building support jacking device disclosed in this embodiment. For the building support jacking device in Embodiment 1, it includes the following steps:

[0058] Preparation: Fix the base 1 on one side of the building 81 and under the floor slab 82. Place the first pile section 51 in the limit sleeve 12. The lower clamp 4 clamps the first pile section 51 at the initial position, and the upper clamp 3 is in the loose state;

[0059] Jacking of the first pile section: The jacking mechanism 2 drives the lower clamp 4 to rise. After reaching the upper limit position, without exceeding the upper clamp 3, the upper clamp 3 clamps the first pile section 51, and the lower clamp 4 releases the first pile section 51. The jacking mechanism 2 drives the lower clamp 4 to descend to the initial position. After the lower clamp 4 clamps the first pile section 51 again, the upper clamp 3 releases the first pile section 51; Repeat the above steps until the first pile section 51 rises to the specified position;

[0060] Pile section splicing: Splice the second pile section 51 under the first pile section 51, and complete the rise of the second pile section 51 to the specified position according to the jacking steps of the first pile section 51;

[0061] Completion of splicing and jacking of the support pile: According to the jacking steps of the first pile section 51 and the steps of pile section 51 splicing, until the last pile section 51 rises to the specified position;

[0062] During the rise of each pile section 51, when the drill bit 6 contacts a certain floor slab 82, start the drill bit 6 to drill the floor slab 82 so that the current pile section 51 passes through the floor slab 82.

[0063] Through the above method, it is possible to splice the support pile 5 while jacking, and at the same time, every time the floor slab 82 is encountered during the jacking process, start the drill bit 6 to drill and break each floor slab 82. This layer-by-layer breaking reduces the weakening force on each floor slab 82 and improves the stability of the wall. After the support pile 5 is jacked in place, construct the truss, and use the truss to support the wall, thereby protecting the wall.

[0064] In this embodiment, a guide member 91 is fixed on the wall. A guide ring 92 is provided at one end of the guide member 91 away from the wall. During the rise of the pile section 51, it passes through the guide ring 92, and the guide ring guides the rise of the support pile 5 to prevent the jacking from shifting. Multiple guide members 91 are provided and arranged in upper and lower layers. After the support pile 5 is completed with splicing and jacking, two fixed clamps 93 are sleeved on the pile section 51 corresponding to the guide ring 92. The two fixed clamps 93 are located at the upper and lower ends of the guide ring 92 to limit the guide ring 92. The fixed clamps 93 enable the support pile 5 to form a connection structure with the guide member 91 to form a stable support. The fixed clamp 93 is preferably a hoop.

[0065] Example 3

[0066] This embodiment discloses a construction method for building support. The support lifting device of Embodiment 1 is adopted, and the guide member 91 is fixed on the wall in advance, which specifically includes the following steps:

[0067] (1) Preset the anchor bolt 16 at the construction site; specifically in this step, clean the construction site, drill the bolt holes, and implant the anchor bolt 16. The construction site is the side close to the building 81 and under the bottommost floor slab 82;

[0068] (2) Fix the base 1 to the anchor bolt 16; in this step, it is necessary to ensure that the connection between the base 1 and the anchor bolt 16 is firm and ensure the level of the workbench 11 of the base 1;

[0069] (3) Preparation: Place the first pile section 51 from below the workbench 11 into the limit sleeve 12. The lower clamp 4 clamps the first pile section 51 at the initial position, and the upper clamp 3 is in the loosened state;

[0070] (4) Lifting of the first pile section: The lifting mechanism 2 drives the lower clamp 4 to rise. After reaching the upper limit position and not exceeding the upper clamp 3, the upper clamp 3 clamps the first pile section 51 (steel pipe section), the lower clamp 4 releases the first pile section 51, the lifting mechanism 2 drives the lower clamp 4 to descend to the initial position, and after the lower clamp 4 clamps the first pile section 51 again, the upper clamp 3 releases the first pile section 51; repeat the above steps until the first pile section 51 rises to the specified position;

[0071] (5) Pile section splicing: Splice the second pile section 51 below the first pile section 51, and complete the lifting of the second pile section 51 to the specified position according to the lifting steps of the first pile section 51;

[0072] (6) Completion of splicing and lifting of the support pile: According to the lifting steps of the first pile section 51 and the steps of pile section 51 splicing, until the last pile section 51 rises to the specified position; it should be noted that in the above steps (4), (5), and (6), during the rising process of each pile section 51, when the drill bit 6 contacts a certain floor slab 82, start the drill bit 6 to drill the floor slab 82 so that the current pile section 51 passes through the floor slab 82, and at the same time, when encountering the guide ring 92, the support pile 5 just passes through the guide ring 92;

[0073] (7) After the support pile 5 is lifted to the specified position, stop lifting, put on the fixing clamps 93 at the upper and lower ends of the guide ring 92, and lock the fixing clamps 93 to limit and fix the guide ring 92;

[0074] (8) Connect the support pile 5 with the truss structure to form a force-bearing system for supporting the wall.

[0075] It should be noted that in the construction method of this embodiment, after the jacking work of the support pile 5 is completed, the base 1, the jacking mechanism 2, the upper clamp 3 and the lower clamp 4 can be removed. And the removed structure is used to carry out the jacking work on another support pile 5.

[0076] Embodiment 4

[0077] The usage method of the building support jacking device in this embodiment is different from that in Embodiment 2 in that: in this embodiment, the support pile 5 is of an integral structure and is suitable for application occasions where the building 81 is not very high. The usage method includes the following steps:

[0078] S1. Fix the base 1 on one side of the building 81 and under the floor slab 82, place the support pile 5 in the limit sleeve 12, the lower clamp 4 clamps the support pile 5 at the initial position, and the upper clamp 3 is in the released state;

[0079] S2. The jacking mechanism 2 drives the lower clamp 4 to rise. After reaching the upper limit position, without exceeding the upper clamp 3, the upper clamp 3 clamps the support pile 5, the lower clamp 4 releases the support pile 5, and the jacking mechanism 2 drives the lower clamp 4 to descend to the initial position;

[0080] S3. The lower clamp 4 clamps the support pile 5 again, and the upper clamp 3 releases the support pile 5;

[0081] S4. Repeat steps S2 and S3 until the support pile 5 rises to the specified position. During the rising process of the support pile 5, when the drill bit 6 contacts the floor slab 82, start the drill bit 6 to drill the floor slab 82 so that the support pile 5 can pass through the floor slab 82.

[0082] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.

Claims

1. A building support lifting device, characterized in that: It includes a base (1), a jacking mechanism (2), an upper clamp (3), a lower clamp (4), a support pile (5) and a drill bit (6). The base (1) is provided with a workbench (11). The workbench (11) is provided with a limit sleeve (12) through which the support pile (5) can pass. The jacking mechanism (2) is installed on the workbench (11). The lower clamp (4) is arranged on the jacking mechanism (2) to clamp or release the support pile (5). The upper clamp (3) is installed on the workbench (11) through a vertical frame (13) to clamp or release the support pile (5). The upper clamp (3) is located above the lower clamp (4). The drill bit (6) is arranged at the top of the support pile (5). The jacking mechanism (2) includes a hydraulic jack (21). The support and jacking device further includes a first sensor (71) and a second sensor (72). The first sensor (71) is used to sense the limit position of the upward movement of the lower clamp (4), and the second sensor (72) is used to sense the limit position of the downward movement of the lower clamp (4). By alternately clamping the support pile (5) with the upper clamp (3) and the lower clamp (4), the support pile (5) passes through the floor slab (82) layer by layer from bottom to top, so as to drill and break the floor slab (82) layer by layer.

2. The building support lifting device according to claim 1, characterized in that: The support pile (5) is formed by splicing a plurality of pile sections (51) in sequence from top to bottom, and the drill bit (6) is arranged on the uppermost pile section (51).

3. The building support jacking device according to claim 1, characterized in that: Two hydraulic jacks (21) are provided and symmetrically distributed on both sides of the limit sleeve (12). The lower clamp (4) includes two lower clamp seats (41) and two lower clamping blocks (42). The two lower clamp seats (41) are respectively installed on the two hydraulic jacks (21). A lower linear movement module (43) is arranged in the lower clamp seat (41), and the lower clamping block (42) is connected to the lower linear movement module (43).

4. The building support jacking device according to claim 3, characterized in that: The upper clamp (3) includes two upper clamp seats (31) and two upper clamping blocks (32). The two upper clamp seats (31) are installed on the vertical frame (13) and symmetrically distributed on both sides of the limit sleeve (12). An upper linear movement module (33) is arranged in the upper clamp seat (31), and the upper clamping block (32) is connected to the upper linear movement module (33).

5. The building support jacking device according to any one of claims 1 to 4, characterized in that: The limit sleeve (12) is a detachable splicing structure, and the base (1) is a detachable splicing structure.

6. A method for using a building support and lifting device according to any one of claims 1 to 5, characterized in that, It includes the following steps: S1. Fix the base (1) on one side of the building (81) and below the floor slab (82). Place the support pile (5) in the limit sleeve (12). The lower clamp (4) clamps the support pile (5) at the initial position, and the upper clamp (3) is in the released state. S2. The jacking mechanism (2) drives the lower clamp (4) to rise. After reaching the upper limit position and not exceeding the upper clamp (3), the upper clamp (3) clamps the support pile (5), the lower clamp (4) releases the support pile (5), and the jacking mechanism (2) drives the lower clamp (4) to descend to the initial position. S3. The lower clamp (4) clamps the support pile (5) again, and the upper clamp (3) releases the support pile (5). S4. Repeat steps S2 and S3 until the support pile (5) rises to the specified position. During the rising process of the support pile (5), when the drill bit (6) contacts the floor slab (82), start the drill bit (6) to drill the floor slab (82) so that the support pile (5) passes through the floor slab (82).

7. A method for using a building support lifting device according to any one of claims 2 to 4, characterized in that, It includes the following steps: Preparation: Fix the base (1) on one side of the building (81) and under the floor slab (82). Place the first pile section (51) in the limit sleeve (12). The lower clamp (4) clamps the first pile section (51) at the initial position, and the upper clamp (3) is in the released state. Lifting of the first pile section: The lifting mechanism (2) drives the lower clamp (4) to rise. After reaching the upper limit position and not exceeding the upper clamp (3), the upper clamp (3) clamps the first pile section (51), and the lower clamp (4) releases the first pile section (51). The lifting mechanism (2) drives the lower clamp (4) to descend to the initial position. After the lower clamp (4) clamps the first pile section (51) again, the upper clamp (3) releases the first pile section (51). Repeat the above steps until the first pile section (51) rises to the specified position. Pile section splicing: Splice the second pile section (51) under the first pile section (51). According to the lifting steps of the first pile section (51), complete the rising of the second pile section (51) to the specified position. Completion of splicing and lifting of the support pile: According to the lifting steps of the first pile section (51) and the steps of pile section (51) splicing, until the last pile section (51) rises to the specified position. During the rising process of each pile section (51), when the drill bit (6) contacts the floor slab (82), start the drill bit (6) to drill the floor slab (82) so that the current pile section (51) passes through the floor slab (82).

8. The method for using the building support jacking device according to claim 7, characterized in that: A guide member (91) is fixed on the building (81). A guide ring (92) is provided at one end of the guide member (91) away from the building (81). The pile section (51) passes through the guide ring (92) during the rising process.

9. The method of using the building support lifting device according to claim 7, characterized in that: After the splicing and lifting of the support pile (5) are completed, two fixing clamps (93) are sleeved on the pile section (51) corresponding to the guide ring (92). The two fixing clamps (93) are located at the upper and lower ends of the guide ring (92) to limit the guide ring (92).

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