Pile foundation pile head concrete pre-segmentation device

Abstract

The invention discloses a pile foundation pile head concrete pre-segmentation device, and relates to the technical field of pile foundation construction, the pile foundation pile head concrete pre-segmentation device comprises an auxiliary support device, a circular isolation plate, a first fixing bolt, a first U-shaped buckle, an outer stirrup, a second fixing bolt, a second U-shaped buckle, an inner stirrup, a third U-shaped buckle, a third fixing bolt, a central window, a semicircular plate and a threading hole; according to the auxiliary supporting device, the auxiliary supporting device can be conveniently fixed to the main reinforcement of the reinforcement cage through the clamping mechanism of the auxiliary supporting device, the auxiliary supporting device has the structural design of supporting and convenient operation, the main reinforcement can be reliably clamped through specific gear transmission and clamping block matching, and therefore supporting and mounting of components such as a circular isolation plate and a semicircular plate are facilitated; by arranging the central window, a guide pipe can be conveniently inserted and pulled during concrete pouring, after concrete pouring is completed, the semicircular plate can be lifted to the horizontal position through the reserved vertical line to seal the pouring hole channel, and therefore the purpose of dividing the upper layer concrete and the lower layer concrete is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of pile foundation construction, in particular to a pile foundation head concrete pre-splitting device. Background Art

[0002] In the field of pile foundation construction in engineering construction, the removal of pile head concrete is an important task. The existing pile head removal construction process usually involves first making a circumferential cut at the top of the pile, peeling off the circumferential concrete on the outside of the pile top and the concrete of the upper main reinforcement, then drilling holes inward horizontally, inserting a steel chisel and repeatedly hammering to separate the upper and lower layers of concrete, and finally lifting out the upper layer of concrete. However, this process has some problems, such as high work intensity and difficulty in ensuring the flatness of the critical surface of the pile top. To solve these problems, a splitting device can be preset at the top of the pile in advance to pre-split the upper and lower layers of concrete. In this way, when removing the pile head, only the main reinforcement and the outer concrete need to be peeled off, and the upper layer of concrete can be directly lifted out without drilling or splitting. Summary of the invention

[0003] The purpose of the present invention is to provide a pile foundation pile head concrete pre-dividing device in order to solve the above problems, which solves the problems that the work intensity is high when removing the existing pile head and the surface of the critical surface of the pile top is difficult to ensure flatness.

[0004] In order to solve the above problems, the present invention provides a technical solution: a pile foundation pile head concrete pre-dividing device, comprising a steel cage surrounded by a plurality of main steel bars, and also comprising an auxiliary support device, a circular isolation plate, a fixing bolt 1, a U-shaped clip 1, an outer stirrup, a fixing bolt 2, a U-shaped clip 2, an inner stirrup, a U-shaped clip 3, a fixing bolt 3, a central window, a semicircular plate and a threading hole; the auxiliary support device is two, and the two auxiliary support devices are fixedly connected to the left and right sides of the steel cage respectively; the circular isolation plate is located on the inner side of the steel cage and on the auxiliary support device A central window is provided in the center of the circular isolation plate; the outer stirrups are located on the outside of the steel cage and on the auxiliary supporting device, and the outer stirrups are fixedly connected to the outside of the circular isolation plate by a plurality of fixing bolts 1 and a U-shaped clip 1; the inner stirrups are fixedly connected to the inside of the central window by a plurality of fixing bolts 2 and a U-shaped clip 2; there are two semicircular plates, and the two semicircular plates are respectively located on both sides of the central window, and the two semicircular plates are movably connected to the inner stirrups by U-shaped clips 3 and fixing bolts 3, and threading holes are opened on both sides of the inner sides of the two semicircular plates.

[0005] Preferably, the specific structure of the auxiliary support device includes a semi-ring body, a clamping mechanism, a fixed arm, a support block one, a handle and a support block two; a clamping mechanism is provided on the inner side of the semi-ring body; there are several fixed arms, and the outer sides of several fixed arms are respectively and evenly fixedly connected to the semi-ring body, and the inner upper sides of several fixed arms are respectively and evenly fixedly connected to support block one; there are several handles, and several handles are respectively and evenly fixedly connected to the outer side of the semi-ring body; there are several support blocks two, and several support blocks two are respectively and evenly fixedly connected to the top surface of the semi-ring body.

[0006] Preferably, the specific structure of the clamping mechanism includes a guide groove 1, a slide body 1, an arc-shaped rack 1, a fixed shell, a handwheel, a driving gear 1, a worm, a worm wheel, a driving gear 2, a connecting gear, a transmission gear 2, an arc-shaped rack 2, a transmission gear 1, a clamping block 1, a clamping block 2 and a slide body 2; the guide groove 1 is arranged on the inner side of the semi-ring body; the slide body 1 is movably connected to the upper side of the guide groove 1, and the left side of the slide body 1 is fixedly connected with an arc-shaped rack 1; the slide body 2 is movably connected to the lower side of the guide groove, and the left side of the slide body 2 is fixedly connected with an arc-shaped rack 2; the fixed shell is fixedly connected to the central inner part of the left side of the semi-ring body outside; the worm wheel is movably connected to the central inner part of the fixed shell, the upper side of the worm wheel is fixedly connected with the driving gear 1, and the lower side of the worm wheel is fixedly connected with the driving gear 2; The worm is movably connected to the central interior of the left side of the fixed shell, and a handwheel is fixedly connected to the left end of the worm, and the worm is connected to the worm wheel; the transmission gear 1 is movably connected to the interior of the upper right side of the fixed shell, and the left side of the transmission gear 1 is connected to the driving gear 1, and the right side of the transmission gear 1 is connected to the arc-shaped rack 1; the transmission gear 2 is movably connected to the interior of the lower right side of the fixed shell, and the left side of the transmission gear 2 is connected to the driving gear 2 through a connecting gear, and the right side of the transmission gear 2 is connected to the arc-shaped rack 2; there are several clamping blocks 1, and several of the clamping blocks 1 are respectively and evenly fixedly connected to the inner side surface of the slide body 1; there are several clamping blocks 2, and several of the clamping blocks 2 are respectively located on one side of the corresponding clamping block 1, and several of the clamping blocks 2 are fixedly connected to the inner side surface of the slide body 2.

[0007] Preferably, the handwheel is a handwheel with a foldable handle.

[0008] Preferably, clamping grooves are provided on the inner sides of the clamping block 1 and the clamping block 2.

[0009] Preferably, the guide groove 1 is a T-shaped guide groove.

[0010] Preferably, a circular arc groove is provided on the top of the second supporting block.

[0011] Preferably, the circular isolation plate consists of four sector-shaped steel plates.

[0012] Preferably, the diameter of the central window is 400 mm.

[0013] The beneficial effects of the present invention are as follows: (1) The present invention has the advantages of reasonable and simple structure, low production cost and convenient installation. The auxiliary support device can be conveniently fixed on the main reinforcement of the steel cage by the clamping mechanism, and it has a structural design that is supportive and easy to operate. Through the cooperation of specific gear transmission and clamping blocks, the main reinforcement can be reliably clamped, thereby facilitating the support and installation of components such as circular isolation plates and semi-circular plates. Through connection methods such as U-shaped clips and fixing bolts, it is easy to install and disassemble, and can adapt to different construction requirements.

[0014] (2) The present invention provides a central window to facilitate the insertion and removal of the conduit during concrete pouring. After the concrete pouring is completed, the semicircular plate can be pulled to a horizontal position by a reserved vertical line to close the pouring channel, thereby achieving the purpose of isolating the upper and lower layers of concrete. When the pile head is subsequently removed, the work intensity is reduced and the surface of the critical surface of the pile top is smooth, thereby improving construction efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 for Figure 1 sectional view of .

[0017] Figure 3 It is a structural schematic diagram of the auxiliary support device.

[0018] Figure 4 It is a structural schematic diagram of the clamping mechanism.

[0019] Figure 5 for Figure 4 Enlarged view of position A in the middle.

[0020] 1-rebar cage; 2-auxiliary support device; 3-circular isolation plate; 4-fixing bolt 1; 5-U-shaped buckle 1; 6-outer stirrup; 7-fixing bolt 2; 8-U-shaped buckle 2; 9-inner stirrup; 10-U-shaped buckle 3; 11-fixing bolt 3; 12-central window; 13-semicircular plate; 14-threading hole; 21-semi-ring body; 22-clamping mechanism; 23-fixing arm; 24-support block 1; 25-handle; 26-support Block 2; 221-guide groove 1; 222-slide body 1; 223-arc rack 1; 224-fixed housing; 225-handwheel; 226-driving gear 1; 227-worm; 228-worm wheel; 229-driving gear 2; 2210-connecting gear; 2211-transmission gear 2; 2212-arc rack 2; 2213-transmission gear 1; 2214-clamp block 1; 2215-clamp block 2; 2216-slide body 2. DETAILED DESCRIPTION like Figure 1 and Figure 2 As shown, this specific embodiment adopts the following technical scheme: a pile foundation pile head concrete pre-dividing device, including a steel cage 1 surrounded by a plurality of main steel bars, and also including an auxiliary support device 2, a circular isolation plate 3, a fixing bolt 4, a U-shaped clip 5, an outer stirrup 6, a fixing bolt 2 7, a U-shaped clip 2 8, an inner stirrup 9, a U-shaped clip 3 10, a fixing bolt 3 11, a central window 12, a semicircular plate 13 and a threading hole 14; the auxiliary support device 2 is two, and the two auxiliary support devices 2 are fixedly connected to the left and right sides of the steel cage 1 respectively; the circular isolation plate 3 is located on the inner side of the steel cage 1 and on the auxiliary support device 2, and the circular isolation plate 3 A central window 12 is provided inside the center; the outer stirrups 6 are located outside the steel cage 1 and on the auxiliary support device 2, and the outer stirrups 6 are fixedly connected to the outside of the circular isolation plate 3 by several fixing bolts 4 and U-shaped buckles 5; the inner stirrups 9 are fixedly connected to the inside of the central window 12 by several fixing bolts 27 and U-shaped buckles 28; there are two semicircular plates 13, and the two semicircular plates 13 are respectively located on both sides of the central window 12, and the two semicircular plates 13 are movably connected to the inner stirrups 9 by U-shaped buckles 3 10 and fixing bolts 3 11, and threading holes 14 are opened on both sides of the inner sides of the two semicircular plates 13 for easy connection with the reserved vertical line.

[0022] like Figure 3 As shown, the specific structure of the auxiliary support device 2 includes a semi-ring body 21, a clamping mechanism 22, a fixed arm 23, a support block 1 24, a handle 25 and a support block 2 26; the clamping mechanism 22 is provided on the inner side of the semi-ring body 21; there are several fixed arms 23, and the outer sides of several fixed arms 23 are respectively and evenly fixedly connected to the semi-ring body 21, and the inner upper sides of several fixed arms 23 are respectively and evenly fixedly connected to the support block 1 24; there are several handles 25, and several handles 25 are respectively and evenly fixedly connected to the outer sides of the semi-ring body 21; there are several support blocks 26, and several support blocks 26 are respectively and evenly fixedly connected to the top surface of the semi-ring body 21.

[0023] like Figure 4 and Figure 5As shown, the specific structure of the clamping mechanism 22 includes a guide groove 1 221, a slide body 1 222, an arc-shaped rack 1 223, a fixed housing 224, a hand wheel 225, a driving gear 1 226, a worm 227, a worm wheel 228, a driving gear 2 29, a connecting gear 2210, a transmission gear 2 2211, an arc-shaped rack 2 2212, a transmission gear 1 2213, a clamping block 1 2214, a clamping block 2 2215 and a slide body 2 2216; the guide groove 1 221 is provided on the inner side surface of the semi-ring body 21; the slide body 1 222 is movably connected to the guide groove 1 221, the left side of the slide body 1 222 is fixedly connected to an arc-shaped rack 1 223; the slide body 2216 is movably connected to the lower side of the guide groove 1 221, and the left side of the slide body 2216 is fixedly connected to an arc-shaped rack 2212; the fixed housing 224 is externally fixedly connected to the left central interior of the semi-ring body 21; the worm gear 228 is movably connected to the central interior of the fixed housing 224, the upper side of the worm gear 228 is fixedly connected to a driving gear 1 226, and the lower side of the worm gear 228 is fixedly connected to a driving gear 2 229; The worm 227 is movably connected to the central part of the left side of the fixed housing 224, and the hand wheel 225 is fixedly connected to the left end of the worm 227, and the worm 227 is connected to the worm wheel 228; the transmission gear 1 2213 is movably connected to the upper right side of the fixed housing 224, and the left side of the transmission gear 1 2213 is connected to the driving gear 1 226, and the right side of the transmission gear 1 2213 is connected to the arc rack 1 223; the transmission gear 2 2211 is movably connected to the lower right side of the fixed housing 224, and the transmission gear 2 2212 is connected to the driving gear 1 226, and the right side of the transmission gear 1 2212 is connected to the arc rack 1 223. The left side of the transmission gear 2211 is connected to the driving gear 229 through the connecting gear 2210, and the right side of the transmission gear 2211 is connected to the arc rack 2212; there are several clamping blocks 1 2214, and several of the clamping blocks 1 2214 are respectively and evenly fixedly connected to the inner side surface of the sliding body 1 222; there are several clamping blocks 2215, and several of the clamping blocks 2215 are respectively located on one side of the corresponding clamping block 1 2214, and several of the clamping blocks 2215 are all fixedly connected to the inner side surface of the sliding body 2216.

[0024] Among them, the handwheel 225 is a handwheel with a foldable handle; the inner sides of the clamp block 1 2214 and the clamp block 2 2215 are both provided with clamping grooves; the guide groove 1 221 is a T-shaped guide groove; the top of the support block 2 26 is provided with an arc groove; the circular isolation plate 3 is composed of four fan-shaped steel plates; the diameter of the central window 12 is 400mm, so as to facilitate the insertion and removal of the catheter during concrete pouring.

[0025] The use status of the present invention is as follows: the present invention has a reasonable and simple structure, low production cost, and convenient installation. When preparing for installation, firstly, the two auxiliary support devices 2 are fixedly connected to the left and right sides of the steel cage 1 respectively, and the semi-ring body 21 of the auxiliary support device 2 is clamped on the main reinforcement of the steel cage through the clamping mechanism 22 on its inner side. During specific operation, by rotating the hand wheel 225, the worm 227 is driven to rotate, and then the worm wheel 228 is rotated, and the worm wheel 228 drives the driving gear 1 226 and the driving gear 2 229 to rotate, and the driving gear 1 226 drives the arc rack 1 223 through the transmission gear 1 2213, so that the slide body 1 222 moves, and the clamping block 1 2214 on the slide body 1 222 moves accordingly. The driving gear 229 drives the arc rack 2212 through the connecting gear 2210 and the transmission gear 2211 to move the slide body 2216, and the clamping block 2215 on the slide body 2216 moves accordingly. The clamping block 1 2214 and the clamping block 2215 cooperate with each other to tightly clamp the main reinforcement of the steel cage through the clamping grooves on their inner sides. At the same time, the fixed arm 23 on the semi-ring body 21 supports the device to a certain extent through the support block 1 24, and the handle 25 is convenient for operation. The arc groove on the top of the support block 26 can be used to assist in supporting the outer stirrups 6. When installing the splitting device, first place the circular isolation plate 3 on the inner side of the steel cage 1 and the auxiliary support On the supporting device 2, the circular isolation plate 3 is composed of four fan-shaped steel plates, and a central window 12 is provided in the center thereof. The outer stirrups 6 are located on the outside of the steel cage 1 and on the auxiliary supporting device 2. The outer stirrups 6 are fixedly connected to the outer side of the circular isolation plate 3 by several fixing bolts 1 4 and U-shaped buckles 1 5, so as to fix the outer position of the circular isolation plate 3. Then, the inner stirrups 9 are fixedly connected to the inner side of the central window 12 by several fixing bolts 2 7 and U-shaped buckles 2 8. Two semicircular plates 13 are respectively located on both sides of the central window 12, and are movably connected to the inner stirrups 9 by U-shaped buckles 3 10 and fixing bolts 3 11. Both sides of the inner sides of the two semicircular plates 13 are provided with threading holes 1 4, which is convenient for connection with the reserved vertical line; when the installation of the splitting device is completed, the two auxiliary supporting devices 2 can be removed to carry out the concrete pouring operation. The central window 12 is arranged to facilitate the insertion and extraction of the conduit during concrete pouring. When the concrete pouring is completed and the conduit is pulled out, the semicircular plate 13 is pulled from the vertical position to the horizontal position through the reserved vertical line to close the pouring channel, thereby achieving the purpose of isolating the upper and lower layers of concrete. At this time, the entire device completes its role in the preset isolation of the pile head concrete. When the pile head is subsequently dismantled, it is only necessary to peel off the main reinforcement and the outer concrete, and there is no need to drill and split. The upper layer of concrete can be directly hoisted out, which reduces the work intensity and makes the surface of the critical surface of the pile top smooth.

[0026] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation", "screw-on" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0028] The above shows and describes the basic principles and main features of the present invention and the 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 only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

[0029] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and wiring layout in detail.

Claims

1. A pile foundation pile head concrete pre-dividing device, comprising a steel cage (1) surrounded by a plurality of main steel bars, characterized in that: It also includes an auxiliary support device (2), a circular isolation plate (3), a fixing bolt (4), a U-shaped buckle (5), an outer stirrup (6), a fixing bolt (7), a U-shaped buckle (8), an inner stirrup (9), a U-shaped buckle (10), a fixing bolt (11), a central window (12), a semicircular plate (13) and a threading hole (14); There are two auxiliary support devices (2), and the two auxiliary support devices (2) are respectively fixedly connected to the left and right sides of the steel cage (1); The circular isolation plate (3) is located inside the steel cage (1) and above the auxiliary support device (2), and a central window (12) is provided in the center of the circular isolation plate (3); The outer stirrups (6) are located outside the steel cage (1) and on the auxiliary support device (2), and the outer stirrups (6) are fixedly connected to the outer side of the circular isolation plate (3) by means of a plurality of fixing bolts (4) and a U-shaped buckle (5); The inner stirrup (9) is fixedly connected to the inner side of the central window (12) by means of a plurality of fixing bolts (7) and U-shaped buckles (8); There are two semicircular plates (13), which are respectively located on both sides of the central window (12). The two semicircular plates (13) are movably connected to the inner stirrup (9) through U-shaped buckles (10) and fixing bolts (11). Both sides of the inner sides of the two semicircular plates (13) are provided with threading holes (14).

2. The pile foundation pile head concrete pre-dividing device according to claim 1, characterized in that: The specific structure of the auxiliary support device (2) comprises a semi-ring body (21), a clamping mechanism (22), a fixed arm (23), a support block 1 (24), a handle (25) and a support block 2 (26); A clamping mechanism (22) is provided on the inner side of the semi-ring body (21); There are a plurality of fixed arms (23), the outer sides of the plurality of fixed arms (23) are evenly fixedly connected to the semi-ring body (21), and the inner upper sides of the plurality of fixed arms (23) are fixedly connected to a support block 1 (24); There are a plurality of handles (25), and the plurality of handles (25) are evenly fixedly connected to the outside of the semi-ring body (21); There are a plurality of the second support blocks (26), and the plurality of second support blocks (26) are evenly fixedly connected to the top surface of the semi-ring body (21).

3. The pile foundation pile head concrete pre-dividing device according to claim 2, characterized in that: The specific structure of the clamping mechanism (22) includes a guide groove 1 (221), a slide body 1 (222), an arc-shaped rack 1 (223), a fixed housing (224), a hand wheel (225), a driving gear 1 (226), a worm (227), a worm wheel (228), a driving gear 2 (229), a connecting gear (2210), a transmission gear 2 (2211), an arc-shaped rack 2 (2212), a transmission gear 1 (2213), a clamping block 1 (2214), a clamping block 2 (2215) and a slide body 2 (2216); The guide groove 1 (221) is formed on the inner side surface of the semi-ring body (21); The slide bar body 1 (222) is movably connected to the upper side of the guide groove 1 (221), and an arc-shaped rack 1 (223) is fixedly connected inside the left side of the slide bar body 1 (222); The second slide body (2216) is movably connected to the lower side of the guide groove (221), and the left side of the second slide body (2216) is fixedly connected to the inside of the second arc-shaped rack (2212); The fixed shell (224) is externally fixedly connected to the central interior of the left side of the semi-ring body (21); The worm wheel (228) is movably connected to the central interior of the fixed housing (224); the upper exterior of the worm wheel (228) is fixedly connected to a driving gear 1 (226); and the lower exterior of the worm wheel (228) is fixedly connected to a driving gear 2 (229); The worm (227) is movably connected to the left central interior of the fixed housing (224); a hand wheel (225) is fixedly connected to the left end of the worm (227); and the worm (227) is connected to a worm wheel (228); The transmission gear 1 (2213) is movably connected inside the upper right side of the fixed housing (224); the left side of the transmission gear 1 (2213) is connected to the driving gear 1 (226); and the right side of the transmission gear 1 (2213) is connected to the arc-shaped rack 1 (223); The second transmission gear (2211) is movably connected inside the lower right side of the fixed housing (224); the left side of the second transmission gear (2211) is connected to the second driving gear (229) via the connecting gear (2210); and the right side of the second transmission gear (2211) is connected to the second arc-shaped rack (2212); There are a plurality of clamping blocks 1 (2214), and the plurality of clamping blocks 1 (2214) are respectively and evenly fixedly connected to the inner side surface of the slide body 1 (222); There are several clamping blocks 2 (2215), and the several clamping blocks 2 (2215) are respectively located on one side of the corresponding clamping block 1 (2214), and the several clamping blocks 2 (2215) are all fixedly connected to the inner side surface of the sliding strip body 2 (2216).

4. The device for pre-dividing pile foundation concrete according to claim 3, characterized in that: The hand wheel (225) is a hand wheel with a foldable handle.

5. The device for pre-dividing pile foundation concrete according to claim 3, characterized in that: The inner sides of the clamping block 1 (2214) and the clamping block 2 (2215) are both provided with clamping slots.

6. The device for pre-dividing pile foundation concrete according to claim 3, characterized in that: The guide groove one (221) is a T-shaped guide groove.

7. The device for pre-dividing pile foundation concrete according to claim 2, characterized in that: The top of the supporting block 2 (26) is provided with an arc groove.

8. The pile foundation pile head concrete pre-dividing device according to claim 1, characterized in that: The circular isolation plate (3) is composed of four sector-shaped steel plates.

9. The device for pre-dividing pile foundation concrete according to claim 1, characterized in that: The diameter of the central window (12) is 400 mm.

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