Pile pressing mechanism for PHC prefabricated pipe pile construction

Abstract

The invention provides a PHC prefabricated pipe pile construction pile pressing mechanism, and relates to the technical field of pile pressing mechanisms. Two first connecting blocks are arranged on the base in a sliding mode. Two first electric cylinders are fixed to the top end face of the base, and the extending ends of the two first electric cylinders are fixed to the two first connecting blocks correspondingly. A first fourth electric cylinder and a fourth fourth electric cylinder drive four second connecting blocks to move outwards, at the moment, the stress strength of the base can be improved, and the base is prevented from inclining in the pile pressing process; secondly, four ground nails penetrate through four second connecting blocks and are nailed into soil, when the ground nails are detached, four fourth electric cylinders are controlled to stretch out and draw back for one time in a small range, at the moment, the stability of the ground nails in the soil can be reduced, the ground nails can be conveniently pulled out of the soil, and compared with an existing device, the device can improve the stability of a base body during pile pressing, and the pile pressing efficiency is improved. And during placement, the occupied space can be reduced through storage of a second connecting block, and the ground nail is convenient to detach after pile pressing is completed, so that the overall efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pile pressing mechanisms, and particularly to a pile pressing mechanism for PHC precast pipe pile construction. Background Art

[0002] PHC pipe piles have a wide range of applications and are suitable for various soil conditions, including strongly weathered rock formations, completely weathered rock formations, hard clay layers, or dense sand layers, etc.; PHC pipe piles also have advantages such as good crack resistance and bending resistance, high bearing capacity, low cost, and strong adaptability. Therefore, PHC pipe piles have been widely used in the construction field. When constructing PHC precast pipe piles, a pile pressing mechanism is often required.

[0003] For example, application number: CN202410135222.8, the present invention relates to the technical field of PHC precast pipe pile construction, and particularly to a pile pressing mechanism for PHC precast pipe pile construction. The present invention includes a pile pressing counterweight platform, a gantry mounting frame, counterweight blocks, and side pull mounting plates. The top of the pile pressing counterweight platform is fixed with a gantry mounting frame and counterweight blocks. Two side pull mounting plates are fixed on one side of the gantry mounting frame, and the bottoms of the side pull mounting plates are both fixed to the pile pressing counterweight platform. A vertical pile pressing mechanism is assembled inside the gantry mounting frame, and the vertical pile pressing mechanism is used for pressing down the PHC precast pipe pile for construction. Through the structural design of the vertical pile pressing mechanism and the auxiliary positioning mechanism, the device is convenient for guiding and pressing the PHC precast pipe pile, improving the working efficiency and enhancing the efficiency of the device. And through the structural design of the anti-displacement mechanism, the device can limit the displacement of the pile pressing counterweight platform, enabling the pile pressing counterweight platform to be stable on the ground, which is beneficial for use.

[0004] When a pile pressing mechanism similar to the above application is in use, there are still the following deficiencies: During the pile pressing process, the expansion of the moment cannot be achieved. When the soil is hard, it is easy to cause the pile pressing device to tilt, affecting the pile pressing efficiency; during the downward pressing process, when the driving part for downward pressing is damaged, it needs to be repaired before continuing to use, delaying the construction efficiency.

[0005] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies to provide a pile pressing mechanism for PHC precast pipe pile construction, with the expectation of achieving a more practical value. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a pile pressing mechanism for PHC precast pipe pile construction to solve the problems that during the pile pressing process, the expansion of the moment cannot be achieved, when the soil is hard, it is easy to cause the pile pressing device to tilt, affecting the pile pressing efficiency; during the downward pressing process, when the driving part for downward pressing is damaged, it needs to be repaired before continuing to use, delaying the construction efficiency.

[0007] The present invention provides a pile pressing mechanism for PHC precast pipe piles, specifically including: a base; a pile pressing component is installed on the base.

[0008] Further, the pile pressing component is composed of a first connection block, a first electric cylinder, a second electric cylinder, a seat body, a guide rod, an installation arm, a third electric cylinder, and a pressing rod. Two first connection blocks slide on the base; two first electric cylinders are fixed on the top end surface of the base, and the extending ends of the two first electric cylinders are respectively fixed on the two first connection blocks.

[0009] Further, two second electric cylinders are fixed on the top end surface of each first connection block, and the extending ends of the four second electric cylinders are all fixed on the bottom of the seat body, and the seat body is of a concave structure.

[0010] Further, two guide rods slide on the seat body, the lower ends of the two guide rods are welded on the top end surface of the installation arm, a third electric cylinder is fixed on the bottom end surface of the seat body, the extending end of the third electric cylinder is fixed on the installation arm, and a pressing rod is welded on the bottom end surface of the installation arm.

[0011] Further, a limiting component is installed on the first connection block. The limiting component is composed of a connection seat, a limiting block, a limiting groove, an adjusting rod, and an electric motor. The connection seat is welded on the front end surfaces of the two first connection blocks, two limiting blocks slide on the connection seat, and the two limiting blocks are located below the pressing rod.

[0012] Further, an adjusting rod rotates on the connection seat, the left end and the right end of the adjusting rod are respectively threadedly connected to the two limiting blocks, and the thread directions of the left end and the right end of the adjusting rod are opposite; a motor is fixed on the connection seat, and the output shaft of the motor is fixed on the adjusting rod.

[0013] Further, a limiting groove is opened on the inner side of each limiting block, and the two limiting grooves are both of a V-shaped groove structure, and the two limiting grooves are clamped on the outer side of the pile body.

[0014] Further, an auxiliary component is installed on the base. The auxiliary component is composed of a second connection block, an installation rod, a counterweight, a ground nail, and a fourth electric cylinder. Four second connection blocks slide on the base, a welding rod is welded on the top end surface of each second connection block, and counterweights are sleeved on each installation rod in a linear array.

[0015] Further, four fourth electric cylinders are fixed on the top end surface of the base, the extending ends of the front two fourth electric cylinders are fixed on the front two second connection blocks, and the extending ends of the rear two fourth electric cylinders are fixed on the rear two second connection blocks.

[0016] Further, a ground nail is inserted into each second connection block, the four ground nails are all inserted into the soil, and the four ground nails together form the fixing structure of the base.

[0017] Furthermore, two support blocks are welded to the bottom end face of the base. Both support blocks are rectangular block structures and are in contact with the ground. There is a gap between the base and the ground under the support of the two support blocks.

[0018] Compared with the prior art, the present invention has the following beneficial effects: In this application, through the setting of the auxiliary component, firstly, since counterweight blocks are sleeved on each mounting rod in a linear array, the weight of the base can be increased through the counterweight blocks, which ensures the stability of the base during pile pressing; secondly, control the four fourth electric cylinders to extend. The four fourth electric cylinders drive the four second connecting blocks to move outwards. At this time, the stress intensity of the base can be increased, and the inclination of the base during pile pressing can be avoided; thirdly, pass the four ground nails through the four second connecting blocks and drive them into the soil. When disassembling the ground nails, control the four fourth electric cylinders to stretch slightly once. At this time, the stability of the ground nails in the soil can be reduced, and it is convenient to pull out the ground nails from the soil. Compared with the existing device, this device can improve the stability of the seat body during pile pressing, and the space occupation can be reduced through the storage of the second connecting blocks during placement, and it is convenient to disassemble the ground nails after pile pressing is completed, improving the overall efficiency.

[0019] In this application, through the setting of the limiting component, on the one hand, place the two limiting blocks on both sides of the pile body, control the motor to rotate, and the motor drives the adjusting rod to rotate. Under the drive of the adjusting rod, the inner sides of the two limiting blocks are in contact with the pile body. At this time, the limiting of the pile body can be realized; on the other hand, the front, back, left, and right limiting of the pile body can be realized through the two V-shaped limiting grooves, and the V-shaped limiting grooves can adapt to the limiting of pile bodies with different diameters. Compared with the existing device, this device can position the pile body during pile pressing, avoid the inclination of the pile body, and can realize the limiting of pile bodies with different diameters, and the adjustment efficiency is high through the drive of the adjusting rod during adjustment.

[0020] In this application, through the setting of the pile pressing component, firstly, when the extrusion rod is not aligned with the pile body front and back, control the two first electric cylinders to stretch. The two first electric cylinders drive the two first connecting blocks to adjust back and forth until the extrusion rod is aligned with the pile body; secondly, just control the two second electric cylinders to stretch. When the two second electric cylinders stretch, they can drive the extrusion rod to adjust the height; thirdly, when the second electric cylinder is damaged and cannot stretch, control the third electric cylinder to stretch. When the third electric cylinder stretches, it can drive the mounting arm and the extrusion rod to adjust the height. At this time, the extrusion action of the pile body can be completed. Compared with the existing device, this device can be quickly adjusted when it is not aligned with the pile body front and back, and can perform emergency pile pressing when the second electric cylinder is damaged. Description of the Drawings

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly introduced below.

[0022] In the accompanying drawings: Figure 1 The axonometric structural schematic diagram of the pile pressing mechanism for PHC precast pipe pile construction according to the present invention is shown; Figure 2 The front view structural schematic diagram of the pile pressing mechanism for PHC precast pipe pile construction according to the present invention is shown; Figure 3 The left view structural schematic diagram of the pile pressing mechanism for PHC precast pipe pile construction according to the present invention is shown; Figure 4 The top view structural schematic diagram of the pile pressing mechanism for PHC precast pipe pile construction according to the present invention is shown; Figure 5 The axonometric structural schematic diagram of the pile pressing component and the limiting component according to the present invention is shown; Figure 6 The axonometric structural schematic diagram of the limiting component according to the present invention is shown; Figure 7 The axonometric structural schematic diagram of the auxiliary component according to the present invention is shown; Figure 8 Shows according to the present invention Figure 7 The axonometric structural schematic diagram after rotation.

[0023] List of reference numerals 1. Base; 101. Support block; 2. Pile pressing component; 201. First connection block; 202. First electric cylinder; 203. Second electric cylinder; 204. Seat body; 205. Guide rod; 206. Installation arm; 207. Third electric cylinder; 208. Extrusion rod; 3. Limiting component; 301. Connection seat; 302. Limiting block; 303. Limiting groove; 304. Adjusting rod; 305. Motor; 4. Auxiliary component; 401. Second connection block; 402. Installation rod; 403. Counterweight; 404. Ground nail; 405. Fourth electric cylinder. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0025] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present invention have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. It should also be understood that terms such as those defined in a general dictionary should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless explicitly defined in the embodiments of the present invention.

[0026] In the embodiments of the present invention, words such as "first", "second" and the like do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "a", "an" or "the" do not denote a quantity limitation either, but mean that there is at least one. Similarly, words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. In the following description, spatial and orientation terms such as "upper", "lower", "front", "rear", "top", "bottom", "vertical" and "horizontal" may be used to describe the embodiments of the present invention, but it should be understood that these terms are only for the convenience of describing the embodiments shown in the drawings, and do not require the actual device to be constructed or operated in a specific orientation. In the following description, the use of terms such as "connected", "coupled", "fixed" and "attached" may refer to a direct connection between two elements or structures without other elements or structures, or may refer to an indirect connection between two elements or structures through intermediate elements or structures, unless otherwise explicitly stated herein.

[0027] Embodiment 1: As shown in the Figure 1 to the Figure 8 accompanying The present invention provides a pile pressing mechanism for PHC precast pipe piles, including: a base 1; a pile pressing assembly 2 is installed on the base 1.

[0028] Among them, the pile pressing assembly 2 is composed of a first connection block 201, a first electric cylinder 202, a second electric cylinder 203, a seat body 204, a guide rod 205, a mounting arm 206, a third electric cylinder 207 and a pressing rod 208. Two first connection blocks 201 slide on the base 1; two first electric cylinders 202 are fixed on the top end surface of the base 1, and the extending ends of the two first electric cylinders 202 are respectively fixed on the two first connection blocks 201. When the pressing rod 208 is not aligned with the pile body front and back, control the two first electric cylinders 202 to expand and contract, and the two first electric cylinders 202 drive the two first connection blocks 201 to adjust back and forth until the pressing rod 208 is aligned with the pile body.

[0029] Among them, two second electric cylinders 203 are fixed on the top end surface of each first connection block 201. The extending ends of the four second electric cylinders 203 are all fixed to the bottom of the seat body 204. The seat body 204 is of a concave structure. When adjusting the height of the extrusion rod 208, only control the telescoping of the two second electric cylinders 203. When the two second electric cylinders 203 telescope, they can drive the extrusion rod 208 to adjust the height.

[0030] Among them, two guide rods 205 slide on the seat body 204. The lower ends of the two guide rods 205 are welded to the top end surface of the mounting arm 206. A third electric cylinder 207 is fixed to the bottom end surface of the seat body 204. The extending end of the third electric cylinder 207 is fixed to the mounting arm 206. The extrusion rod 208 is welded to the bottom end surface of the mounting arm 206. When the second electric cylinder 203 is damaged and cannot telescope, control the telescoping of the third electric cylinder 207. When the third electric cylinder 207 telescopes, it can drive the mounting arm 206 and the extrusion rod 208 to adjust the height. At this time, the extrusion action of the pile body can be completed.

[0031] Among them, a limiting component 3 is installed on the first connection block 201. The limiting component 3 is composed of a connection seat 301, a limiting block 302, a limiting groove 303, an adjusting rod 304 and a motor 305. The connection seat 301 is welded to the front end surfaces of the two first connection blocks 201. Two limiting blocks 302 slide on the connection seat 301. The two limiting blocks 302 are located below the extrusion rod 208.

[0032] Among them, an adjusting rod 304 rotates on the connection seat 301. The left end and the right end of the adjusting rod 304 are respectively threadedly connected to the two limiting blocks 302. The thread directions of the left end and the right end of the adjusting rod 304 are opposite; a motor 305 is fixed on the connection seat 301. The output shaft of the motor 305 is fixed to the adjusting rod 304. When limiting the pile body, place the two limiting blocks 302 on both sides of the pile body, control the motor 305 to rotate, and the motor 305 drives the adjusting rod 304 to rotate. Driven by the adjusting rod 304, the inner sides of the two limiting blocks 302 contact the pile body. At this time, the limiting of the pile body can be realized.

[0033] Among them, a limiting groove 303 is opened on the inner side of each limiting block 302. The two limiting grooves 303 are both of a V-shaped groove structure. The two limiting grooves 303 are clamped on the outer side of the pile body. During use, the front, back, left and right limiting of the pile body can be realized through the two V-shaped limiting grooves 303, and the V-shaped limiting grooves 303 can adapt to the limiting of pile bodies with different diameters.

[0034] Among them, an auxiliary component 4 is installed on the base 1. The auxiliary component 4 is composed of a second connecting block 401, a mounting rod 402, a counterweight 403, a ground nail 404, and a fourth electric cylinder 405. Four second connecting blocks 401 slide on the base 1. A mounting rod 402 is welded to the top end surface of each second connecting block 401. Counterweights 403 are sleeved on each mounting rod 402 in a linear array. During use, the weight of the base 1 can be increased through the counterweights 403, thus ensuring the stability of the base 1 during pile pressing.

[0035] Among them, four fourth electric cylinders 405 are fixed on the top end surface of the base 1. The extending ends of the two front fourth electric cylinders 405 are fixed on the two front second connecting blocks 401, and the extending ends of the two rear fourth electric cylinders 405 are fixed on the two rear second connecting blocks 401. During use, control the four fourth electric cylinders 405 to extend. The four fourth electric cylinders 405 drive the four second connecting blocks 401 to move outwards. At this time, the stress intensity of the base 1 can be increased, avoiding the inclination of the base 1 during pile pressing.

[0036] Embodiment 2: Based on Embodiment 1, it further includes: A ground nail 404 is inserted into each second connecting block 401. The four ground nails 404 are all inserted into the soil. The four ground nails 404 together form a fixing structure for the base 1. During use, pass the four ground nails 404 through the four second connecting blocks 401 and drive them into the soil. When disassembling the ground nails 404, control the four fourth electric cylinders 405 to expand and contract slightly once. At this time, the stability of the ground nails 404 in the soil can be reduced, facilitating the extraction of the ground nails 404 from the soil.

[0037] Embodiment 3: Based on Embodiment 2, it further includes: Two support blocks 101 are welded to the bottom end surface of the base 1. Both support blocks 101 are rectangular block structures. Both support blocks 101 are in contact with the ground. There is a gap between the base 1 and the ground under the support of the two support blocks 101. When transferring the position, it is convenient to insert the forklift arm under the base 1, facilitating the position transfer of the device.

[0038] The specific usage mode and function of this embodiment: Place this device at the position of the pile body. At this time, it is necessary to ensure that the extrusion rod 208 is aligned with the pile body left and right. Control the four fourth electric cylinders 405 to extend, and the four fourth electric cylinders 405 drive the four second connection blocks 401 to move outwards; Pass the four ground nails 404 through the four second connection blocks 401 and drive them into the soil; Control the two first electric cylinders 202 to expand and contract. The two first electric cylinders 202 drive the two first connection blocks 201 to adjust back and forth until the extrusion rod 208 is aligned with the pile body; Place the two limit blocks 302 on both sides of the pile body, control the motor 305 to rotate, and the motor 305 drives the adjustment rod 304 to rotate. Driven by the adjustment rod 304, the inner sides of the two limit blocks 302 are in contact with the pile body, and at this time, the limit of the pile body can be realized; Just control the two second electric cylinders 203 to extend. When the two second electric cylinders 203 extend, they can drive the extrusion rod 208 to move downward to complete the pile pressing action; When the second electric cylinder 203 is damaged and cannot expand and contract, control the third electric cylinder 207 to expand and contract. When the third electric cylinder 207 expands and contracts, it can drive the mounting arm 206 and the extrusion rod 208 to adjust the height, and at this time, the extrusion action of the pile body can be completed; After the pile pressing is completed, it is necessary to transfer this device. When disassembling the ground nail 404, control the four fourth electric cylinders 405 to expand and contract slightly once. At this time, the stability of the ground nail 404 in the soil can be reduced, which is convenient to pull out the ground nail 404 from the soil; When transferring the position, it is convenient to insert the forklift arm into the bottom of the base 1, which facilitates the position transfer of this device.

[0039] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A PHC prefabricated pipe pile construction pile driving mechanism, characterized in that: include: A base (1); a pile pressing assembly (2) is installed on the base (1); the pile pressing assembly (2) is composed of a first connecting block (201), a first electric cylinder (202), a second electric cylinder (203), a base body (204), a guide rod (205), a mounting arm (206), a third electric cylinder (207) and an extrusion rod (208); two first connecting blocks (201) are slidably mounted on the base (1); two first electric cylinders (202) are fixed to the top surface of the base (1), and the protruding ends of the two first electric cylinders (202) are respectively fixed to the two first connecting blocks (201).

2. A PHC prefabricated pipe pile construction pile driving mechanism as claimed in claim 1, characterized in that: Two second electric cylinders (203) are fixed to the top surface of each of the first connecting blocks (201), and the extended ends of the four second electric cylinders (203) are fixed to the bottom of the seat body (204), and the seat body (204) is a concave structure.

3. A PHC prefabricated pipe pile construction pile driving mechanism as claimed in claim 2, characterized in that: Two guide rods (205) are slidably mounted on the seat body (204); the lower ends of the two guide rods (205) are welded to the top end surface of the mounting arm (206); a third electric cylinder (207) is fixed to the bottom end surface of the seat body (204); the extended end of the third electric cylinder (207) is fixed to the mounting arm (206); and an extrusion rod (208) is welded to the bottom end surface of the mounting arm (206).

4. A PHC prefabricated pipe pile construction pile driving mechanism as claimed in claim 3, characterized in that: A limit assembly (3) is installed on the first connection block (201), the limit assembly (3) comprising a connection seat (301), a limit block (302), a limit groove (303), an adjustment rod (304) and a motor (305), the connection seat (301) is welded to the front end surfaces of the two first connection blocks (201), two limit blocks (302) are slidably mounted on the connection seat (301), and the two limit blocks (302) are located below the extrusion rod (208).

5. A PHC prefabricated pipe pile construction pile driving mechanism as claimed in claim 4, characterized in that: An adjusting rod (304) is rotatably mounted on the connecting seat (301); a left end and a right end of the adjusting rod (304) are respectively threadedly connected to two limit blocks (302); and the left end and the right end of the adjusting rod (304) have opposite thread directions; and an electric motor (305) is fixed on the connecting seat (301); an output shaft of the electric motor (305) is fixed on the adjusting rod (304).

6. A PHC prefabricated pipe pile construction pile driving mechanism as claimed in claim 5, characterized in that: A limiting groove (303) is provided on the inner side of each limiting block (302), and both limiting grooves (303) are V-shaped groove structures. The two limiting grooves (303) are clamped on the outer side of the pile body.

7. A PHC prefabricated pipe pile construction pile driving mechanism as claimed in claim 6, characterized in that: An auxiliary component (4) is installed on the base (1), and the auxiliary component (4) is composed of a second connecting block (401), a mounting rod (402), a counterweight (403), a ground nail (404) and a fourth electric cylinder (405). Four second connecting blocks (401) are slidably mounted on the base (1), a mounting rod (402) is welded to the top end surface of each second connecting block (401), and a counterweight (403) is sleeved on each mounting rod (402) in a linear array.

8. A PHC prefabricated pipe pile construction pile driving mechanism as claimed in claim 7, characterized in that: Four fourth electric cylinders (405) are fixed to the top surface of the base (1), the extended ends of the two fourth electric cylinders (405) on the front side are fixed to the two second connecting blocks (401) on the front side, and the extended ends of the two fourth electric cylinders (405) on the rear side are fixed to the two second connecting blocks (401) on the rear side.

9. A PHC prefabricated pipe pile construction pile driving mechanism as claimed in claim 8, characterized in that: Each of the second connection blocks (401) is plugged with a ground nail (404), the four ground nails (404) are all plugged into the soil, and the four ground nails (404) together form a fixed structure of the base (1).

10. A PHC prefabricated pipe pile construction pile driving mechanism as claimed in claim 9, characterized in that: Two support blocks (101) are welded to the bottom end surface of the base (1); both support blocks (101) are rectangular block structures; both support blocks (101) are in contact with the ground; and a gap exists between the base (1) and the ground under the support of the two support blocks (101).

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