Rapid pile head breaking device suitable for short-distance cast-in-place piles

Abstract

The invention is suitable for the technical field of pile breaking, and provides a rapid pile head breaking device suitable for short-distance cast-in-place piles, the rapid pile head breaking device comprises a first connecting piece and a second connecting piece, one side of the first connecting piece is fixedly connected with a mounting block, and a connecting groove is formed in the side, away from the mounting block, of the first connecting piece; according to the rapid pile head breaking and removing device suitable for the short-distance cast-in-place piles, after the inner diameters of the first connecting pieces and the second connecting pieces are adjusted to be within the diameter range corresponding to the pile type, the inner diameter of the first connecting pieces and the inner diameter of the second connecting pieces are adjusted to be within the diameter range corresponding to the pile type, and therefore the pile head breaking and removing device is suitable for the short-distance cast-in-place piles. The hydraulic oil cylinders and the drill bits on the first connecting piece and the second connecting piece are used for crushing the pile body, and the pile body is sleeved with the pile body for hydraulic crushing after being evenly arranged into a circle, so that the crushing speed of the pile body is increased to a certain degree, and workers can use the device more conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of pile breaking, and more particularly to a device for quickly breaking pile heads of cast-in-place piles with short spacing. Background Art

[0002] Bored cast-in-place piles are widely used in support projects because of their reliable quality, simple construction technology and strong adaptability to the strata. However, when pouring concrete for bored cast-in-place piles, the pile top elevation should be 0.5-1.0m higher than the designed pile top elevation to ensure the strength of the pile foundation concrete. The pile head part that is higher than the designed pile top elevation must be chiseled off during subsequent construction processes.

[0003] At present, the pile heads of traditional bored piles are mainly removed manually or by circular crushing machines. However, for single-row short-spacing supporting bored piles, such as single-row bored piles with a pile spacing of less than 700 mm, they cannot be directly inserted, which makes the crushing progress of the pile body easily affected. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a device suitable for quickly breaking the pile heads of short-spacing cast-in-place piles.

[0005] To achieve the above object, the present invention provides the following technical solutions: A device suitable for quickly breaking pile heads of short-spacing cast-in-place piles comprises a first connecting member and a second connecting member, wherein a mounting block is fixedly connected to one side of the first connecting member, a connecting groove is provided on a side of the first connecting member away from the mounting block, a surface of the mounting block is rotatably connected to the inside of the connecting groove by an axis, a hydraulic cylinder is fixedly connected to one side of the first connecting member, an output end of the hydraulic cylinder slides through the inside of the first connecting member and extends to the outside of the first connecting member, a drill bit is fixedly connected to the output end of the hydraulic cylinder, a connecting plate is provided inside the connecting groove, a transmission groove is provided inside the connecting plate, a first transmission connection device is provided inside the transmission groove, a lower support plate is provided on one side of the mounting block, a second transmission connection device is provided on the lower support plate, and an anti-splash device is provided on the top of the first connecting member.

[0006] The present invention is further configured as follows: the first transmission connection device includes a second threaded rod, the surface of the second threaded rod is rotatably connected to the inside of the transmission groove, the top end of the second threaded rod rotates through the inside of the transmission groove and extends to the outside of the connecting plate, the inside of the transmission groove is slidably connected to two symmetrical transmission plates, the top of the transmission plate is fixedly connected to two symmetrical second positioning shafts, the second positioning shaft slides through the inside of the connecting plate and extends to the outside of the connecting plate, the inside of the transmission plate is threadedly connected to the surface of the second threaded rod, the inside of the first connecting piece is provided with a second positioning groove extending to the outside of the first connecting piece, and the surface of the second positioning shaft is movably connected to the inside of the second positioning groove.

[0007] The present invention is further configured such that: two opposite threads are provided on the surface of the second threaded rod starting from the center thereof, and the two transmission plates are respectively arranged on the two opposite threads on the surface of the second threaded rod.

[0008] The present invention is further configured such that: the second transmission connection device includes a fixed block, the bottom of the fixed block is fixedly connected to the top of the lower support plate, a threaded groove is formed in the top of the fixed block, an upper support plate is arranged on the top of the fixed block, a first threaded rod extending into the threaded groove is rotatably connected inside the upper support plate, the surface of the first threaded rod is in threaded connection with the inside of the threaded groove, the fixed block, the lower support plate and the upper support plate form an I-shaped structure, an installation block is arranged between the upper support plate and the lower support plate, and first positioning grooves are formed in the upper support plate and the lower support plate.

[0009] The present invention is further configured such that: first connecting shafts are fixedly connected to both the top and the bottom of the installation block, and the surfaces of the first connecting shafts are movably connected to the inside of the first positioning grooves.

[0010] The present invention is further configured such that: a limiting rod is fixedly connected to the bottom of the upper support plate, two symmetric limiting grooves are formed in the top of the fixed block, and the surface of the limiting rod is slidably connected to the inside of the limiting grooves.

[0011] The present invention is further configured such that: the anti-splash device includes a trapezoidal positioning rod, the bottom of the trapezoidal positioning rod is fixedly connected to the top of the first connecting member, a protective plate is arranged on the top of the first connecting member, a trapezoidal positioning groove is formed in the bottom of the protective plate, the inside of the trapezoidal positioning groove is slidably connected to the surface of the trapezoidal positioning rod, the cross-sections of the trapezoidal positioning rod and the trapezoidal positioning groove are both trapezoidal, a power groove is formed in the protective plate, a U-shaped positioning frame is slidably connected to the inside of the power groove, the cross-sections of the U-shaped positioning frame and the power groove are both U-shaped, a fixing groove is formed in the top of the trapezoidal positioning rod, and one side of the U-shaped positioning frame close to the fixing groove is inserted into the inside of the fixing groove.

[0012] The present invention is further configured such that: a spring is fixedly connected to the top of the U-shaped positioning frame, and the top end of the spring is fixedly connected to the inner wall of the power groove.

[0013] The present invention is further configured such that: a transmission toothed plate is fixedly connected to the inside of the U-shaped positioning frame, a gear is rotatably connected to the inside of the power groove, teeth are arranged on one side of the transmission toothed plate close to the gear, the transmission toothed plate is meshed with the surface of the gear through the teeth, a power shaft is fixedly connected to one side of the gear, and one end of the power shaft rotates through the inside of the protective plate and extends to the outside of the protective plate.

[0014] The advantages of the present invention are: 1. The device for quickly removing the pile head of a short-spacing cast-in-place pile according to the present invention, after adjusting the inner diameters of a plurality of first connectors and second connectors to a diameter range corresponding to the pile type, uses the hydraulic cylinders and drills on the first connectors and second connectors to break the pile body. After being evenly arranged in a circle and sleeved onto the pile body for hydraulic crushing, the crushing speed of the pile body is increased to a certain extent, and it is more convenient for workers to use the device. Compared with the traditional pile head breaker, hydraulic cylinders are only arranged on both sides of the pile body, thus greatly reducing the number of hydraulic cylinders used, shortening the assembly time of the breaker in the early stage, improving the crushing efficiency of the pile body, reducing the manufacturing cost of the breaker, reducing the crushing cost of the pile body, and being applicable to the pile head crushing of short-spacing cast-in-place piles, having high popularization value.

[0015] 2. The device for quickly removing the pile head of a short-spacing cast-in-place pile according to the present invention drives the U-shaped positioning frame to slide into and out of the inside of the fixed groove through the transmission toothed plate, compresses and resets the spring, and realizes the position fixing and fixing release of the protective plate, making it more convenient for workers to install and disassemble the protective plate, making the device more convenient when not in use, and when the device is in use, the protective plate can block the splashing concrete blocks to a certain extent, enabling the workers on one side to work more safely, and enabling the workers to use the device to quickly break the pile more safely.

[0016] 3. The device for quickly removing the pile head of a short-spacing cast-in-place pile according to the present invention can drive the second positioning shaft to slide into the inside of the second positioning groove more smoothly through the transmission plate, connect and position the first connector and the second connector, making the connection of a plurality of first connectors and second connectors more convenient, and improving the connection and installation speed of the first connector and the second connector by the workers to a certain extent.

[0017] 4. The device for quickly removing the pile head of a short-spacing cast-in-place pile according to the present invention drives the upper support plate to move downward through the first threaded rod, positions the top of the mounting block by the upper support plate, and realizes the connection of the mounting blocks on the first connector and the second connector, making it more convenient for workers to connect the mounting blocks on the first connector and the second connector, and improving the installation and connection speed of the device to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the device for quickly removing the pile head of a short-spacing cast-in-place pile according to the present invention; Figure 2 is a schematic structural diagram of the first connector of the present invention; Figure 3 is a schematic structural diagram of the connecting plate of the present invention; Figure 4Schematic structural diagram of the protective plate of the present invention; Figure 5 Planar structural diagram of the upper support plate of the present invention; Figure 6 For the present invention Figure 1 Enlarged structural diagram of A in the present invention.

[0019] In the figure: 1, the first connecting member; 2, the second connecting member; 3, the connecting groove; 4, the connecting plate; 5, the mounting block; 6, the hydraulic cylinder; 7, the protective plate; 8, the fixing block; 9, the lower support plate; 10, the upper support plate; 11, the first threaded rod; 12, the first positioning groove; 13, the first connecting shaft; 14, the transmission groove; 15, the transmission plate; 16, the second positioning shaft; 17, the second positioning groove; 18, the second threaded rod; 19, the power groove; 20, the spring; 21, the U-shaped positioning frame; 22, the transmission toothed plate; 23, the gear; 24, the trapezoidal positioning rod; 25, the trapezoidal positioning groove; 26, the fixing groove; 27, the limiting groove; 28, the limiting rod; 29, the power shaft; 30, the threaded groove. Detailed implementation manners

[0020] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0021] It should be pointed out that, unless otherwise specified, all the technical and scientific terms used in the present application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0022] In the present invention, without contrary description, the orientations such as "upper, lower" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are usually the left and right shown in the drawings; "inside, outside" refer to the inside and outside relative to the contours of the respective components, but the above orientation terms are not used to limit the present invention.

[0023] Please refer to Figure 1-6The present invention provides the following technical solutions: a device for quickly breaking pile heads of short-spacing cast-in-place piles, comprising a first connecting member 1 and a second connecting member 2, the first connecting member 1 and the second connecting member 2 are provided with the same structure, the number of the first connecting member 1 and the second connecting member 2 are both multiple, one side of the first connecting member 1 is fixedly connected to a mounting block 5, a side of the first connecting member 1 away from the mounting block 5 is provided with a connecting groove 3, when two adjacent first connecting members 1 or two adjacent two are matched, the surface of the mounting block 5 is connected to the inside of the connecting groove 3 by shaft rotation, one side of the first connecting member 1 is fixedly connected to a hydraulic cylinder 6, and the hydraulic oil The cylinder 6 is an existing structure, and no further elaboration is made here. The output end of the hydraulic cylinder 6 slides through the interior of the first connecting member 1 and extends to the exterior of the first connecting member 1. The output end of the hydraulic cylinder 6 is fixedly connected with a drill bit. According to the diameter of the pile body, different numbers of first connecting members 1 and second connecting members 2 are equipped. Then, after the inner diameters of the plurality of first connecting members 1 and second connecting members 2 are adjusted to the diameter range corresponding to the pile type, the pile body is crushed by using the hydraulic cylinder 6 and the drill bit on the first connecting member 1 and the second connecting member 2. The angle of the module is between 10 and 30 degrees on the upper support plate. After being evenly arranged in a circle, it is put on the pile body for hydraulic crushing. A connecting plate 4 is provided inside the connecting groove 3, a transmission groove 14 is opened inside the connecting plate 4, a first transmission connecting device is provided inside the transmission groove 14, a lower support plate 9 is provided on one side of the mounting block 5, a second transmission connecting device is provided on the lower support plate 9, and multiple first connecting members 1 and multiple second connecting members 2 can be connected through the first transmission connecting device and the second transmission connecting device, so that the device can crush the pile body more smoothly, and an anti-splash device is provided on the top of the first connecting member 1.

[0024] The first transmission connection device includes a second threaded rod 18, the surface of the second threaded rod 18 is rotatably connected to the inside of the transmission groove 14, the top end of the second threaded rod 18 rotates through the inside of the transmission groove 14 and extends to the outside of the connecting plate 4, the inside of the transmission groove 14 is slidably connected to two symmetrical transmission plates 15, the two transmission plates 15 are provided with the same structure, the top of the transmission plate 15 is fixedly connected to two symmetrical second positioning shafts 16, the second positioning shaft 16 slides through the inside of the connecting plate 4 and extends to the outside of the connecting plate 4, the inside of the transmission plate 15 is threadedly connected to the surface of the second threaded rod 18, the inside of the first connecting member 1 is provided with a second positioning groove 17 extending to the outside of the first connecting member 1, the surface of the second positioning shaft 16 is movably connected to the inside of the second positioning groove 17, the first connecting member 1 can be rotated on the second positioning shaft 16 through the second positioning groove 17, and the second positioning shaft 16 can move up and down inside the second positioning groove 17.

[0025] Furthermore, the surface of the second threaded rod 18 is provided with two sections of opposite threads starting from its center, and the two transmission plates 15 are respectively provided on the two sections of opposite threads on the surface of the second threaded rod 18. Under the restriction of the transmission groove 14, the second threaded rod 18 can drive the two transmission plates 15 to move relative to each other through the two sections of opposite threads on the surface of the second threaded rod 18, and the transmission plate 15 can more smoothly drive the second positioning shaft 16 to slide into the interior of the second positioning groove 17, so that the first connecting member 1 and the second connecting member 2 are connected and positioned.

[0026] After the staff puts the connecting plate 4 into the connecting groove 3, the staff rotates the second threaded rod 18. Under the restriction of the transmission groove 14, the second threaded rod 18 can drive the two transmission plates 15 to move relative to each other through the two opposite threads on the surface of the second threaded rod 18, and the transmission plate 15 can more smoothly drive the second positioning shaft 16 to slide into the second positioning groove 17, so that the first connecting member 1 and the second connecting member 2 are connected and positioned, making the connection of multiple first connecting members 1 and second connecting members 2 more convenient, so that the staff's connection and installation speed of the first connecting member 1 and the second connecting member 2 is improved to a certain extent, and the staff can use the device more conveniently.

[0027] The second transmission connection device includes a fixed block 8, the bottom of which is fixedly connected to the top of the lower support plate 9, a threaded groove 30 is provided on the top of the fixed block 8, an upper support plate 10 is provided on the top of the fixed block 8, the internal rotation connection of the upper support plate 10 is provided with a first threaded rod 11 extending to the inside of the threaded groove 30, the surface of the first threaded rod 11 is connected to the internal thread of the threaded groove 30, the fixed block 8, the lower support plate 9 and the upper support plate 10 form an I-shape, the mounting block 5 is provided between the upper support plate 10 and the lower support plate 9, and the upper support plate 10 and the lower support plate 9 are both provided with a first positioning groove 12.

[0028] Furthermore, the top and bottom of the mounting block 5 are fixedly connected with a first connecting shaft 13, the surface of the first connecting shaft 13 is movably connected to the inside of the first positioning groove 12, the first connecting shaft 13 can rotate and move inside the first positioning groove 12, and the mounting block 5 on the first connecting member 1 and the second connecting member 2 can be connected through the fixed block 8, the lower support plate 9 and the upper support plate 10.

[0029] Furthermore, the bottom of the upper support plate 10 is fixedly connected with a limiting rod 28, and the top of the fixed block 8 is provided with two symmetrical limiting grooves 27. The surface of the limiting rod 28 is slidably connected with the inside of the limiting groove 27. Through the mutual cooperation between the limiting groove 27 and the limiting rod 28, the moving direction of the upper support plate 10 is limited, and the first threaded rod 11 can only drive the upper support plate 10 to move up and down.

[0030] After the installation block 5 is placed between the lower support plate 9 and the upper support plate 10 by the staff, and the first connecting shaft 13 slides into the inside of the first positioning groove 12, the staff rotates the first threaded rod 11. Through the mutual cooperation of the limit groove 27 and the limit rod 28, the moving direction of the upper support plate 10 is restricted, and the first threaded rod 11 can only drive the upper support plate 10 to move up and down. The first threaded rod 11 drives the upper support plate 10 to move downward, and the upper support plate 10 positions the top of the installation block 5, and realizes the connection of the installation block 5 on the first connecting piece 1 and the second connecting piece 2, enabling the staff to more conveniently connect the installation block 5 on the first connecting piece 1 and the second connecting piece 2, and improving the installation and connection speed of the device to a certain extent, making it more convenient for the staff to use the device.

[0031] Specifically, the anti-splash device includes a trapezoidal positioning rod 24. The bottom of the trapezoidal positioning rod 24 is fixedly connected to the top of the first connecting piece 1. A protective plate 7 is arranged on the top of the first connecting piece 1. A trapezoidal positioning groove 25 is opened at the bottom of the protective plate 7. The inside of the trapezoidal positioning groove 25 is slidably connected to the surface of the trapezoidal positioning rod 24. The cross-sections of the trapezoidal positioning rod 24 and the trapezoidal positioning groove 25 are both trapezoidal. Through the mutual cooperation of the trapezoidal positioning rod 24 and the trapezoidal positioning groove 25, the position of the protective plate 7 is limited and positioned. A power groove 19 is opened inside the protective plate 7. A U-shaped positioning frame 21 is slidably connected inside the power groove 19. The cross-sections of the U-shaped positioning frame 21 and the power groove 19 are both U-shaped. A fixing groove 26 is opened at the top of the trapezoidal positioning rod 24. One side of the U-shaped positioning frame 21 close to the fixing groove 26 is inserted into the inside of the fixing groove 26. The U-shaped positioning frame 21 can slide into and out of the inside of the fixing groove 26, and realizes the fixing and release of the position of the protective plate 7, enabling the staff to more conveniently install and disassemble the protective plate 7.

[0032] Further, a spring 20 is fixedly connected to the top of the U-shaped positioning frame 21. The top end of the spring 20 is fixedly connected to the inner wall of the power groove 19. The movement of the U-shaped positioning frame 21 can compress and reset the spring 20.

[0033] Further, a transmission tooth plate 22 is fixedly connected to the inside of the U-shaped positioning frame 21. A gear 23 is rotatably connected inside the power groove 19. Teeth are arranged on one side of the transmission tooth plate 22 close to the gear 23. The transmission tooth plate 22 is meshed with the surface of the gear 23 through the teeth. One side of the gear 23 is fixedly connected to a power shaft 29. One end of the power shaft 29 rotates through the inside of the protective plate 7 and extends to the outside of the protective plate 7.

[0034] The power shaft 29 is rotated by the staff, and the power shaft 29 drives the gear 23 to rotate. The gear 23 drives the U-shaped positioning frame 21 to slide into and out of the inside of the fixed groove 26 through the transmission tooth plate 22, compresses and resets the spring 20, and realizes the position fixing and fixing release of the protective plate 7, so that the staff can more conveniently install and disassemble the protective plate 7, making the device more convenient when not in use. When the device is in use, the protective plate 7 can block the splashing concrete blocks to a certain extent, enabling the staff on one side to work more safely. At the same time, the staff can use the device to quickly break the pile head more safely.

[0035] Working principle: A device suitable for quickly breaking the pile head of short-spacing cast-in-place piles. When in use: First step: The staff is equipped with different numbers of first connectors 1 and second connectors 2 according to the diameter of the pile body. Second step: After the staff puts the connecting plate 4 into the inside of the connecting groove 3, the staff rotates the second threaded rod 18. Under the restriction of the transmission groove 14, the two opposite threads on the surface of the second threaded rod 18 can drive the two transmission plates 15 to move relatively, and the transmission plates 15 can more smoothly drive the second positioning shaft 16 to slide into the inside of the second positioning groove 17, connecting and positioning the first connector 1 and the second connector 2, making the connection of multiple first connectors 1 and second connectors 2 more convenient and improving the connection and installation speed of the first connector 1 and the second connector 2 by the staff to a certain extent. Third step: After the staff places the mounting block 5 between the lower support plate 9 and the upper support plate 10 and makes the first connecting shaft 13 slide into the inside of the first positioning groove 12, the staff rotates the first threaded rod 11. Through the mutual cooperation of the limiting groove 27 and the limiting rod 28, the moving direction of the upper support plate 10 is restricted, and the first threaded rod 11 can only drive the upper support plate 10 to move up and down. The first threaded rod 11 drives the upper support plate 10 to move downward, and the upper support plate 10 positions the top of the mounting block 5, realizing the connection of the mounting blocks 5 on the first connector 1 and the second connector 2, making it more convenient for the staff to connect the mounting blocks 5 on the first connector 1 and the second connector 2 and improving the installation and connection speed of the device to a certain extent. Step 4: Rotate the power shaft 29 by the staff. The power shaft 29 drives the gear 23 to rotate, so that the gear 23 drives the U-shaped positioning frame 21 to slide into and out of the inside of the fixed groove 26 through the transmission tooth plate 22, compresses and resets the spring 20, and realizes the fixing and release of the position of the protection plate 7, enabling the staff to install and disassemble the protection plate 7 more conveniently, making the device more convenient when not in use, and when the device is in use, the protection plate 7 can block the splashing concrete blocks to a certain extent, enabling the staff on one side to work more safely, and at the same time enabling the staff to use the device to quickly break the pile head more safely. Step 5: According to the diameter of the pile body, equip different numbers of the first connectors 1 and the second connectors 2. Then, after adjusting the inner diameters of the multiple first connectors 1 and the second connectors 2 to the diameter range corresponding to the pile type, use the hydraulic cylinders 6 and the drill bits on the first connectors 1 and the second connectors 2 to break the pile body. The angle of the module is between 10 degrees and 30 degrees of the upper support plate, and after being evenly arranged in a circle, it is sleeved on the pile body for hydraulic crushing.

[0036] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0038] It should be noted that the terms "first", "second", etc. in the specification, claims and drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0039] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for quickly breaking the pile head of a short-spacing bored pile, comprising a first connecting member (1) and a second connecting member (2), characterized in that: A mounting block (5) is fixedly connected to one side of the first connecting member (1); a connecting groove (3) is provided on a side of the first connecting member (1) away from the mounting block (5); a surface of the mounting block (5) is rotatably connected to the inside of the connecting groove (3) via an axis; a hydraulic cylinder (6) is fixedly connected to one side of the first connecting member (1); an output end of the hydraulic cylinder (6) slides through the inside of the first connecting member (1) and extends to the outside of the first connecting member (1); a drill bit is fixedly connected to the output end of the hydraulic cylinder (6); a connecting plate (4) is provided inside the connecting groove (3); a transmission groove (14) is provided inside the connecting plate (4); a first transmission connection device is provided inside the transmission groove (14); a lower support plate (9) is provided on one side of the mounting block (5); a second transmission connection device is provided on the lower support plate (9); and an anti-splash device is provided on the top of the first connecting member (1).

2. The device for quickly breaking pile heads of short-spacing cast-in-place piles according to claim 1 is characterized in that: The first transmission connection device comprises a second threaded rod (18), the surface of the second threaded rod (18) is rotatably connected to the inside of the transmission groove (14), the top end of the second threaded rod (18) rotates through the inside of the transmission groove (14) and extends to the outside of the connecting plate (4), the inside of the transmission groove (14) is slidably connected to two symmetrical transmission plates (15), the top of the transmission plate (15) is fixedly connected to two symmetrical second positioning shafts (16), the second positioning shaft (16) slides through the inside of the connecting plate (4) and extends to the outside of the connecting plate (4), the inside of the transmission plate (15) is threadedly connected to the surface of the second threaded rod (18), the inside of the first connecting member (1) is provided with a second positioning groove (17) extending to the outside of the first connecting member (1), and the surface of the second positioning shaft (16) is movably connected to the inside of the second positioning groove (17).

3. A device for quickly breaking pile heads of short-spacing cast-in-place piles according to claim 2, characterized in that: The surface of the second threaded rod (18) is provided with two sections of opposite threads starting from the center thereof, and the two transmission plates (15) are respectively arranged on the two sections of opposite threads on the surface of the second threaded rod (18).

4. The device for quickly breaking pile heads of short-spacing cast-in-place piles according to claim 1 is characterized in that: The second transmission connection device comprises a fixed block (8), the bottom of the fixed block (8) is fixedly connected to the top of the lower support plate (9), the top of the fixed block (8) is provided with a threaded groove (30), the top of the fixed block (8) is provided with an upper support plate (10), the interior of the upper support plate (10) is rotatably connected to a first threaded rod (11) extending into the interior of the threaded groove (30), the surface of the first threaded rod (11) is threadedly connected to the interior of the threaded groove (30), the fixed block (8), the lower support plate (9) and the upper support plate (10) form an I-shape, the mounting block (5) is provided between the upper support plate (10) and the lower support plate (9), and the interiors of the upper support plate (10) and the lower support plate (9) are both provided with a first positioning groove (12).

5. The device for quickly breaking pile heads of short-spacing cast-in-place piles according to claim 4 is characterized in that: The top and bottom of the installation block (5) are both fixedly connected to a first connecting shaft (13), and the surface of the first connecting shaft (13) is movably connected to the inside of the first positioning groove (12).

6. The device for quickly breaking pile heads of short-spacing cast-in-place piles according to claim 5 is characterized in that: The bottom of the upper support plate (10) is fixedly connected with a limiting rod (28), and two symmetrical limiting grooves (27) are formed in the top of the fixed block (8). The surface of the limiting rod (28) is slidably connected with the inside of the limiting groove (27).

7. The device for quickly breaking pile heads of short-spacing cast-in-place piles according to claim 1 is characterized in that: The anti-splash device includes a trapezoidal positioning rod (24). The bottom of the trapezoidal positioning rod (24) is fixedly connected with the top of the first connecting piece (1). A protective plate (7) is arranged on the top of the first connecting piece (1). A trapezoidal positioning groove (25) is formed in the bottom of the protective plate (7). The inside of the trapezoidal positioning groove (25) is slidably connected with the surface of the trapezoidal positioning rod (24). The cross-sections of the trapezoidal positioning rod (24) and the trapezoidal positioning groove (25) are both trapezoidal. A power groove (19) is formed in the protective plate (7). A U-shaped positioning frame (21) is slidably connected with the inside of the power groove (19). The cross-sections of the U-shaped positioning frame (21) and the power groove (19) are both U-shaped. A fixing groove (26) is formed in the top of the trapezoidal positioning rod (24). One side of the U-shaped positioning frame (21) close to the fixing groove (26) is inserted into the inside of the fixing groove (26).

8. The device for quickly breaking pile heads of short-spacing cast-in-place piles according to claim 7 is characterized in that: A spring (20) is fixedly connected to the top of the U-shaped positioning frame (21). The top end of the spring (20) is fixedly connected to the inner wall of the power groove (19).

9. The device for quickly breaking pile heads of short-spacing bored piles according to claim 8 is characterized in that: A transmission tooth plate (22) is fixedly connected to the inside of the U-shaped positioning frame (21). A gear (23) is rotatably connected to the inside of the power groove (19). Teeth are arranged on one side of the transmission tooth plate (22) close to the gear (23). The transmission tooth plate (22) is meshed with the surface of the gear (23) through the teeth. One side of the gear (23) is fixedly connected with a power shaft (29). One end of the power shaft (29) rotatably penetrates through the inside of the protective plate (7) and extends to the outside of the protective plate (7).

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