Pile grouting device for bridge construction

Abstract

The utility model relates to the technical field of bridge construction, in particular to a pile grouting device for bridge construction, which comprises a frame, an adjusting mechanism arranged on the frame, a limit frame slidably connected to one side of the frame, an extension tube arranged at the bottom of the adjusting mechanism, a pile grouting tube arranged at the bottom of the extension tube, and a spare tube arranged on the frame. A sliding groove is formed in the rack; the bottom of one side of the limiting frame is fixedly connected with a sliding block, and the sliding block is slidably connected into the sliding groove. The device has the beneficial effects that the uniformity of concrete grout entering a pile grouting hole can be ensured, and the situation that a lengthened pipe, a standby pipe and a pile grouting pipe deflect in the pile grouting hole due to the influence of the lateral extrusion acting force of concrete is avoided; and meanwhile, transition conical surfaces are arranged between the first connecting ring and the extension pipe and between the second connecting ring and the extension pipe, even if deflection occurs, the situation that the grouting pipe is clamped on a reinforcement cage in the ascending process can be avoided, so that the fluidity of concrete is kept, and the situation of pile breakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a pile-casting device for bridge construction. Background Art

[0002] Pile foundation is a foundation with high bearing capacity, wide application range and long history. It is widely used in high-rise buildings, ports, bridges and other projects.

[0003] The quality of pile foundation construction is directly related to the stability and safety of the entire building. Among the four major steps in pile foundation construction, the construction process is highly complex, requiring a series of continuous steps, including surveying and setting out, drilling and forming, lowering the steel cage, and concrete pouring. Concrete pouring, as the final step in pile foundation construction, directly determines the overall quality of the project. In actual construction, the conduit pouring process is widely used.

[0004] A pile driving machine for road and bridge construction disclosed in Chinese patent CN220117209U can automatically adjust the horizontal position of the concrete delivery pipe of the pile driving machine without moving the pile driving machine, thereby ensuring the pile driving quality of the pile driving machine for road and bridge construction and improving the pile driving efficiency during road and bridge construction.

[0005] However, compared with the existing technology and the comparative solution, it can be seen that the filling machine still has the following problems during actual use:

[0006] The concrete pouring process has strict requirements on construction continuity and must maintain uninterrupted operation. During the pouring process, each time a certain depth of concrete is poured, it is necessary to pull out a section of the conduit from the filling hole and remove it, until all the conduits are pulled out after the final pouring is completed. However, during the pouring process, the conduit is easily deflected due to the lateral squeezing force of the concrete. Adjacent conduits are generally connected by threaded threads or flanges, resulting in the diameter of the adjacent conduit connection being generally larger than the diameter of the conduit body. When the conduit is affected by the lateral squeezing force of the concrete, causing the conduit to deflect in the pile hole, the connection between adjacent conduits is prone to contact and collision with the steel cage in the pile hole, and may be stuck in the gap between the steel bars and unable to move up and down normally;

[0007] Once the conduit jam occurs, the pouring process is interrupted. One of the key requirements for concrete pouring is continuity and uninterrupted operation. If the time required to address the conduit jam is too long, the concrete already poured into the pile hole will lose fluidity due to initial setting. At this point, the newly poured concrete cannot smoothly fall through the conduit and rise upward, forcing the pouring process to be suspended, ultimately resulting in a broken pile. Broken piles not only cause significant economic losses and delay the project schedule, but also require complex repairs or rework, seriously impacting the bearing capacity of the pile foundation and the safety of the project structure. Utility Model Content

[0008] The purpose of the utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background technology, and provide a pile-casting device for bridge construction.

[0009] The purpose of the utility model is achieved through the following technical solutions: A pile-casting device for bridge construction, comprising a frame, an adjustment mechanism provided on the frame, a limit frame slidably connected to one side of the frame, an extension tube provided at the bottom of the adjustment mechanism, a pile-casting pipe provided at the bottom of the extension tube, and a spare pipe provided on the frame;

[0010] A slide is provided on the frame;

[0011] A slider is fixedly connected to the bottom of one side of the limit frame, and the slider is slidably connected to the inside of the slide groove. A fixing bolt is provided on the limit frame, and a connecting port is opened on the limit frame, and the position of the connecting port corresponds to the position of the extension pipe;

[0012] One end of the extension tube is rotatably connected to the first connecting ring, and the end of the extension tube away from the first connecting ring is fixedly connected to the second connecting ring. Transition cone surfaces are provided between the first connecting ring, the second connecting ring and the extension tube. A connecting groove is provided inside the first connecting ring, and a ball is provided inside the connecting groove. The first diversion rack is fixedly connected to the inside of the end of the extension tube close to the second connecting ring.

[0013] Preferably, a first driving member is fixedly mounted on the frame, an output end of the first driving member is fixedly connected to a winding roller, the winding roller is rotatably connected to the frame, a connecting frame is slidably connected to the frame, a tensioning wheel is rotatably connected to the connecting frame, an elastic member is provided between the connecting frame and the frame, a connecting wheel is rotatably connected to the frame, a connecting rope is provided on the winding roller, and a sealing plug is fixedly connected to the end of the connecting rope away from the winding roller.

[0014] Preferably, the adjusting mechanism includes a second driving member, the second driving member is fixedly connected to the frame, the output end of the second driving member is fixedly connected to the first transmission wheel, the first transmission wheel is axially fixedly connected to the first screw, the first screw is threadedly connected to the pile driving bucket, the pile driving bucket is slidably connected to the frame, the pile driving bucket is threadedly connected to the second screw, the first screw and the second screw are both rotatably connected to the frame, one end of the second screw is fixedly connected to the second transmission wheel, and a transmission chain is provided between the second transmission wheel and the first transmission wheel.

[0015] Preferably, the first connecting ring is rotatably connected to one end of the extension tube via a ball bearing.

[0016] Preferably, a diverter groove is provided between the first diverter rack and the inner wall of the extension tube, and the distance between the end of the diverter groove close to the inside of the extension tube and the axis of the extension tube is smaller than the distance between the end of the diverter groove close to the outside of the extension tube and the axis of the extension tube. There are multiple diverter grooves, which are distributed in a circular array between the first diverter rack and the inner wall of the extension tube.

[0017] Preferably, the structure of the spare tube is the same as that of the extension tube.

[0018] Preferably, one end of the pile grouting pipe is rotatably connected to a third connecting ring, and the interior of the pile grouting pipe away from the third connecting ring is fixedly connected to a second diverter frame, the structure of the third connecting ring is the same as that of the first connecting ring, and the structure of the second diverter frame is the same as that of the first diverter frame.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The pile-casting device for bridge construction can ensure the uniformity of concrete slurry when entering the pile-casting hole, and avoid the extension pipe, spare pipe, and pile-casting pipe from being deflected in the pile-casting hole due to the influence of the lateral squeezing force of the concrete; at the same time, transition cone surfaces are provided between the first connecting ring, the second connecting ring, and the extension pipe, so that even if deflection occurs, the pile-casting pipe can be prevented from getting stuck on the steel cage during its ascent, thereby maintaining the fluidity of the concrete and avoiding pile breakage.

[0021] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 It is a structural diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the frame of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0026] Figure 4 This is a schematic structural diagram of the limit frame of the utility model;

[0027] Figure 5This is a schematic cross-sectional view of the connection between the extension pipe and the pile grouting pipe of the utility model;

[0028] Figure 6 This is a schematic diagram of the partial cross-section structure of the extended tube of the utility model;

[0029] Figure 7 For this utility model Figure 6 A schematic diagram of the structure at point A in the middle;

[0030] Figure 8 This is a schematic diagram of the partial cross-sectional structure of the pile-grouted pipe of the utility model.

[0031] In the figure: 1. frame; 101. first driving member; 102. winding roller; 103. connecting frame; 104. tensioning pulley; 105. elastic member; 106. connecting wheel; 107. connecting rope; 108. sealing plug; 109. slide; 2. adjusting mechanism; 201. second driving member; 202. first transmission wheel; 203. first screw; 204. pile grouting bucket; 205. second screw; 206. second transmission wheel; 207. transmission chain; 3. limiting frame; 301. slider; 302. fixing bolt; 303. connecting port; 4. extension pipe; 401. first connecting ring; 402. second connecting ring; 403. connecting groove; 404. ball bearing; 405. first diverter frame; 5. pile grouting pipe; 501. third connecting ring; 502. second diverter frame; 6. spare pipe. DETAILED DESCRIPTION

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0033] Additional aspects and advantages of the present invention will be further described below in conjunction with the accompanying drawings, and some will become apparent from the following description or be learned through practice of the present invention.

[0034] like Figure 1 As shown, a pile-casting device for bridge construction includes a frame 1, an adjustment mechanism 2 is provided on the frame 1, a limit frame 3 is slidably connected to one side of the frame 1, an extension tube 4 is provided at the bottom of the adjustment mechanism 2, a pile-casting pipe 5 is provided at the bottom of the extension tube 4, and a spare pipe 6 is provided on the frame 1;

[0035] like Figure 2As shown, a first driving member 101 is fixedly mounted on the frame 1, an output end of the first driving member 101 is fixedly connected to a winding roller 102, the winding roller 102 is rotatably connected to the frame 1, a connecting frame 103 is slidably connected to the frame 1, a tensioning wheel 104 is rotatably connected to the connecting frame 103, an elastic member 105 is provided between the connecting frame 103 and the frame 1, a connecting wheel 106 is rotatably connected to the frame 1, a connecting rope 107 is provided on the winding roller 102, an end of the connecting rope 107 away from the winding roller 102 is fixedly connected to a sealing plug 108, and a slide groove 109 is provided on the frame 1;

[0036] like Figure 1 and Figure 3 As shown, the adjusting mechanism 2 includes a second driving member 201, a first transmission wheel 202, a first screw 203, a pile pouring bucket 204, a second screw 205, a second transmission wheel 206 and a transmission chain 207. The second driving member 201 is fixedly connected to the frame 1. The output end of the second driving member 201 is fixedly connected to the first transmission wheel 202. The first transmission wheel 202 is axially fixedly connected to the first screw 203. The first screw 203 is threadedly connected to the pile pouring bucket 204. The pile pouring bucket 204 is slidably connected to the frame 1. The pile pouring bucket 204 is threadedly connected to the second screw 205. The first screw 203 and the second screw 205 are both rotatably connected to the frame 1. One end of the second screw 205 is fixedly connected to the second transmission wheel 206. A transmission chain 207 is provided between the second transmission wheel 206 and the first transmission wheel 202.

[0037] like Figure 1 、 Figure 2 and Figure 4 As shown, a slider 301 is fixedly connected to the bottom of one side of the limit frame 3, and the slider 301 is slidably connected to the inside of the slide groove 109. A fixing bolt 302 is provided on the limit frame 3, and a connecting port 303 is opened on the limit frame 3. The position of the connecting port 303 corresponds to the position of the extension tube 4;

[0038] like Figures 5 to 7As shown, one end of the extension tube 4 is rotatably connected to the first connecting ring 401, and the end of the first connecting ring 401 away from the extension tube 4 is provided with an internal thread, and the end of the extension tube 4 away from the first connecting ring 401 is fixedly connected to the second connecting ring 402, and the end of the second connecting ring 402 away from the extension tube 4 is provided with an external thread, and the external thread on the second connecting ring 402 is adapted to the internal thread on the first connecting ring 401, and a transition cone surface is provided between the first connecting ring 401, the second connecting ring 402 and the extension tube 4, and a connecting groove 403 is provided inside the first connecting ring 401. A ball bearing 404 is provided inside the groove 403, and the first connecting ring 401 is rotatably connected to one end of the extension tube 4 via the ball bearing 404. A first diverter frame 405 is fixedly connected to the interior of the extension tube 4 near the end of the second connecting ring 402. A diverter groove is provided between the first diverter frame 405 and the inner wall of the extension tube 4. The distance between the end of the diverter groove near the interior of the extension tube 4 and the axis of the extension tube 4 is smaller than the distance between the end of the diverter groove near the exterior of the extension tube 4 and the axis of the extension tube 4. There are multiple diverter grooves, which are distributed in a circular array between the first diverter frame 405 and the inner wall of the extension tube 4.

[0039] like Figure 1 As shown, the structure of the spare tube 6 is the same as that of the extension tube 4;

[0040] like Figure 5 and Figure 8 As shown, one end of the pile grouting pipe 5 is rotatably connected to the third connecting ring 501, and the interior of the pile grouting pipe 5 away from the third connecting ring 501 is fixedly connected to the second diverter frame 502. The structure of the third connecting ring 501 is the same as that of the first connecting ring 401, and the structure of the second diverter frame 502 is the same as that of the first diverter frame 405.

[0041] The working process is as follows:

[0042] S1. When in use, the second driving member 201 is started, and the second driving member 201 drives the first screw 203 to rotate through the first transmission wheel 202. At the same time, the first transmission wheel 202 drives the second transmission wheel 206 through the transmission chain 207. The second transmission wheel 206 drives the second screw 205 to rotate. The first screw 203 and the second screw 205 drive the pile driving bucket 204 to move upward;

[0043] S2. Connect the extension tube 4, the spare tube 6 and the pile-casting pipe 5 at the bottom of the pile-casting bucket 204 as needed. The extension tubes 4 and the spare tubes 6 are connected end to end, and the pile-casting pipe 5 is connected at the bottom. Then start the second driving member 201, so that the pile-casting bucket 204 drives the extension tube 4, the spare tube 6 and the pile-casting pipe 5 to descend and extend into the pile-casting hole.

[0044] S3. Slide the slider 301 in the chute 109 so that the connection port 303 on the limiting frame 3 is stuck in the connection between the pile grouting bucket 204 and the extension tube 4. Tighten the fixing bolt 302 to limit the extension tube 4 and the pipe fitting at the bottom, and block the sealing plug 108 at the bottom of the pile grouting bucket 204.

[0045] S4. Then, concrete is added to the pile grouting bucket 204. After the pile grouting bucket 204 is filled, the first driving member 101 is started. The first driving member 101 drives the winding roller 102 to rotate. The winding roller 102 rotates to reel in the connecting rope 107. The tensioning wheel 104 tensions the connecting rope 107. The connecting rope 107 pulls the sealing plug 108 to rise.

[0046] S5, the concrete in the pile grouting bucket 204 is poured into the filling hole along the various pipes at the bottom thereof. While pouring, the second driving member 201 is started to drive the pile grouting bucket 204 to move upward, always keeping the pile grouting pipe 5 below the concrete slurry surface;

[0047] S6. Since a diverter groove is provided between the first diverter frame 405 and the inner wall of the extension tube 4, the distance between the end of the diverter groove close to the inside of the extension tube 4 and the axis of the extension tube 4 is smaller than the distance between the end of the diverter groove close to the outside of the extension tube 4 and the axis of the extension tube 4, there are multiple diverter grooves, which are distributed in a circular array between the first diverter frame 405 and the inner wall of the extension tube 4. The structure of the second diverter frame 502 is the same as that of the first diverter frame 405. When the concrete slurry flows out at the second diverter frame 502, the uniformity of the concrete slurry is ensured when it enters the pile hole, and the extension tube 4, the spare pipe 6, and the pile pipe 5 are prevented from being deflected in the pile hole due to the influence of the lateral extrusion force of the concrete.

[0048] S7. At the same time, transition tapered surfaces are provided between the first connecting ring 401, the second connecting ring 402 and the extension tube 4. Even if a deviation occurs, the pile pipe 5 can be prevented from getting stuck on the steel cage during its ascent, thereby maintaining the fluidity of the concrete and avoiding pile breakage.

[0049] The above shows and describes 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 above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A pile grouting device for bridge construction, characterized in that: The machine comprises a frame (1), an adjusting mechanism (2) is provided on the frame (1), one side of the frame (1) is slidably connected to a limiting frame (3), an extension tube (4) is provided at the bottom of the adjusting mechanism (2), a pile-filling tube (5) is provided at the bottom of the extension tube (4), and a spare tube (6) is provided on the frame (1); The frame (1) is provided with a slide groove (109); A slider (301) is fixedly connected to the bottom of one side of the limiting frame (3), and the slider (301) is slidably connected to the inside of the sliding groove (109). A fixing bolt (302) is provided on the limiting frame (3), and a connecting port (303) is opened on the limiting frame (3), and the position of the connecting port (303) corresponds to the position of the extension tube (4); One end of the extension tube (4) is rotatably connected to a first connecting ring (401), and the end of the extension tube (4) away from the first connecting ring (401) is fixedly connected to a second connecting ring (402), and transition conical surfaces are provided between the first connecting ring (401), the second connecting ring (402) and the extension tube (4), a connecting groove (403) is provided inside the first connecting ring (401), and a ball (404) is provided inside the connecting groove (403), and a first diversion frame (405) is fixedly connected to the interior of the extension tube (4) near the end of the second connecting ring (402).

2. A pile-casting device for bridge construction according to claim 1, characterized in that: A first driving member (101) is fixedly mounted on the frame (1), an output end of the first driving member (101) is fixedly connected to a winding roller (102), the winding roller (102) is rotatably connected to the frame (1), a connecting frame (103) is slidably connected to the frame (1), a tensioning wheel (104) is rotatably connected to the connecting frame (103), an elastic member (105) is provided between the connecting frame (103) and the frame (1), a connecting wheel (106) is rotatably connected to the frame (1), a connecting rope (107) is provided on the winding roller (102), and a sealing plug (108) is fixedly connected to one end of the connecting rope (107) away from the winding roller (102).

3. A pile-casting device for bridge construction according to claim 1, characterized in that: The regulating mechanism (2) comprises a second driving member (201), the second driving member (201) being fixedly connected to the frame (1), an output end of the second driving member (201) being fixedly connected to a first transmission wheel (202), the first transmission wheel (202) being fixedly connected to a first screw (203) in the axial direction, a pile piercing bucket (204) being threadedly connected to the first screw (203), the pile piercing bucket (204) being slidably connected to the frame (1), a second screw (205) being threadedly connected to the pile piercing bucket (204), the first screw (203) and the second screw (205) being both rotatably connected to the frame (1), one end of the second screw (205) being fixedly connected to a second transmission wheel (206), and a transmission chain (207) being provided between the second transmission wheel (206) and the first transmission wheel (202).

4. A pile-casting device for bridge construction according to claim 1, characterized in that: The first connecting ring (401) is rotatably connected to one end of the extension tube (4) via a ball (404).

5. The pile-casting device for bridge construction according to claim 1, characterized in that: A diversion groove is provided between the first diversion frame (405) and the inner wall of the extension tube (4), and the distance between the end of the diversion groove close to the inside of the extension tube (4) and the axis of the extension tube (4) is smaller than the distance between the end of the diversion groove close to the outside of the extension tube (4) and the axis of the extension tube (4). There are multiple diversion grooves, which are distributed in a circular array between the first diversion frame (405) and the inner wall of the extension tube (4).

6. A pile-casting device for bridge construction according to claim 1, characterized in that: The structure of the spare tube (6) is the same as that of the extension tube (4).

7. The pile-casting device for bridge construction according to claim 1, characterized in that: One end of the pile grouting pipe (5) is rotatably connected to a third connecting ring (501), and an interior of the pile grouting pipe (5) away from the third connecting ring (501) is fixedly connected to a second diverter frame (502), the structure of the third connecting ring (501) being the same as that of the first connecting ring (401), and the structure of the second diverter frame (502) being the same as that of the first diverter frame (405).

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