Adjustable double-clamping mechanism

Abstract

The adjustable double-clamping mechanism comprises a frame body assembly and two single-clamping-nozzle assemblies, the frame body assembly comprises a lower connecting plate, and a transverse mounting sliding groove is formed in the lower connecting plate; the single-clamping-nozzle assembly comprises an adjusting plate, a plurality of transverse locking assemblies, a plurality of rotating direction locking assemblies, a mounting frame, an oil cylinder assembly, a side crank, moving teeth and a fixed toothed plate, the adjusting plate is provided with a plurality of arc-shaped holes, cup head parts of bolts of the transverse locking assemblies are located in transverse mounting sliding grooves, and the lower portions of the transverse locking assemblies are locked to the adjusting plate; the two single-clamping-nozzle assemblies are combined to work, the pile pulling safety coefficient and the working efficiency are greatly improved, front-back and left-right movement can be achieved through cooperation of the adjusting plate, the multiple transverse locking assemblies and the multiple rotary locking assemblies and adjustment of the positions of the locking bolts so as to be matched with pile types such as steel sheet piles with different diameters and special specifications, multiple types of clamps do not need to be arranged, and the cost is reduced. One machine with multiple purposes is realized, and the cost of customers is reduced.

Description

Technical Field

[0001] The invention relates to steel pipe pile technology, in particular to an adjustable double clamping mechanism. Background Art

[0002] At present, a vibratory pile hammer is a device that can generate strong exciting force after being powered on. It can drive objects into the ground to achieve the purpose of sinking piles. It needs to be used in conjunction with an excavator or pile frame.

[0003] The patent document with application number "CN201320297198.5" discloses a steel pipe clamp for a vibrating pile hammer, comprising a chuck body, a cylinder, a rubber plate, left and right arms and a clamp seat, wherein a cylinder is arranged under the chuck body, a rubber plate is arranged at the lower end of the cylinder, both sides of the cylinder are respectively hinged with the upper ends of the left and right arms, the lower ends of the left and right arms are respectively hinged with the two sides of the clamp seat, a protective seat is arranged at the lower end of the clamp seat, a guide block is arranged on the protective seat, and the characteristic is that: a cushion core column is arranged on the inner side of the clamp seat, the cushion core column cooperates with the clamp seat, the upper end of the cushion core column is connected to a fixing device, the fixing device is connected to the inner upper end of the clamp seat; the lower end of the cushion core column is conical. The utility model effectively overcomes the defect that the top of the pile body is twisted due to uneven force.

[0004] The patent document with application number "CN202411612124.5" discloses a steel pipe pile and steel sheet pile combined pile sinking process and a combined pile sinking device, which belongs to the field of pile foundation construction technology. The steel pipe pile and steel sheet pile combined pile sinking process includes the following steps: S1, assembling the steel pipe pile and the steel sheet pile to form a combination of the steel pipe pile and the steel sheet pile; S2, setting the sizes of the first hydraulic clamp, the second hydraulic clamp, and the third hydraulic clamp according to the size of the combination, and installing the three hydraulic clamps on the slide rails of the vibrating hammer respectively; S3, clamping the first hydraulic clamp and the second hydraulic clamp on both sides of the top of the steel pipe pile respectively, and clamping the third hydraulic clamp on the top of the steel sheet pile, so that the center of gravity of the vibrating hammer and the center of gravity of the combination are on the same vertical line; S4, performing combined pile sinking. The combined pile sinking process can use the resistance of the steel sheet pile to prevent the steel pipe pile from rotating in the soil, thereby ensuring that the lock of the steel sheet pile and the steel pipe pile are overlapped according to the designed position to avoid deviation in the actual construction position.

[0005] The above patent document, combined with the prior art, reveals that the existing adjustable double-clamp mechanism has the following defects:

[0006] 1. The existing steel pipe pile or casing pile clamp has only one clamp head, which is easy to damage the pile body when pulling out the large pile body.

[0007] 2. Only shorter piles with a maximum diameter of 600-800mm can be pulled out. Larger and longer piles are not enough.

[0008] 3. Large steel sheet piles or large pipe piles are usually constructed with hanging hammers, which requires a large number of workers and is not efficient.

[0009] 4. There is no better pile pulling equipment for piles of special specifications. Summary of the invention

[0010] In order to overcome the deficiencies of the prior art, the present invention provides an adjustable double-clamping mechanism, which solves the problem of the adjustable double-clamping mechanism.

[0011] The first aspect of the present invention is to provide an adjustable double-clamp mechanism, including a frame assembly and two single-clip nozzle assemblies, the frame assembly includes a lower connecting plate, and the lower connecting plate is provided with a transverse mounting slot; the single-clip nozzle assembly includes an adjusting plate, a plurality of transverse locking assemblies, a plurality of rotational locking assemblies, a mounting frame, a cylinder assembly, a side crank, a movable tooth, and a fixed tooth plate, the adjusting plate is provided with a plurality of arc-shaped holes, the cup head portion of the bolt of the transverse locking assembly is located in the transverse mounting slot, and the lower portion of the transverse locking assembly is locked to the adjusting plate; after adjusting the two single-clip nozzle assemblies, the rotational locking assembly passes through the arc-shaped hole and is locked to the mounting frame; one end of the cylinder assembly is hinged to the mounting frame, and the other end is hinged to the side crank, the middle part of the side crank is hinged to the mounting frame, and the lower part of the side crank is hinged to the movable tooth, the fixed tooth plate is fixed to the mounting frame and faces the movable tooth, and the cylinder assembly operates to make the movable tooth approach the fixed tooth plate and thereby clamp the pile body.

[0012] In the first aspect of the present invention, as a preferred embodiment, the lower connecting plate is provided with two transverse mounting grooves arranged along the length direction, the adjustment plate is rectangular, and through holes for screws to pass through are provided at the four corners of the adjustment plate.

[0013] In the first aspect of the present invention, as a preferred embodiment, the mounting frame includes a top connecting plate, and the top connecting plate is provided with a hole for docking with the rotational locking assembly.

[0014] In the first aspect of the present invention, as a preferred embodiment, the mounting frame further includes a connecting frame and an L-shaped connecting frame, and the connecting frame is located between the top connecting plate and the L-shaped connecting frame.

[0015] In the first aspect of the present invention, as a preferred embodiment, the arc-shaped hole is provided with a cup head placement groove along the outer side.

[0016] In the first aspect of the present invention, as a preferred embodiment, a fixed tooth mounting portion is provided at the lower portion of the L-shaped connecting frame, and the fixed tooth plate is fixed to the fixed tooth mounting portion.

[0017] In the first aspect of the present invention, as a preferred embodiment, a lower arc portion is provided at the lower portion of the fixed tooth mounting portion, and a lower arc rib is provided at the lower portion of the movable tooth.

[0018] In the first aspect of the present invention, as a preferred embodiment, the single clamping nozzle assembly also includes a first articulated shaft, a second articulated shaft, a third articulated shaft, and a fourth articulated shaft. One end of the cylinder assembly is hinged to the mounting frame through the first articulated shaft, and the other end is hinged to the top of the side crank through the second articulated shaft. The middle part of the side crank is hinged to the mounting frame through the third articulated shaft, and the lower part of the side crank is hinged to the movable tooth through the fourth articulated shaft.

[0019] In the first aspect of the present invention, as a preferred embodiment, the single clamping nozzle assembly further includes a side locking screw, and the side locking screw passes through the mounting frame and is locked with the fixed tooth plate.

[0020] In the first aspect of the present invention, as a preferred embodiment, the number of the side locking screws is 2.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The frame assembly includes a lower connecting plate, and the lower connecting plate is provided with a transverse mounting slot; the single clamping nozzle assembly includes an adjusting plate, a plurality of transverse locking assemblies, a plurality of rotational locking assemblies, a mounting frame, a cylinder assembly, a side crank, a movable tooth, and a fixed tooth plate. The adjusting plate is provided with a plurality of arc holes, and the cup head portion of the bolt of the transverse locking assembly is located in the transverse mounting slot, and the lower portion of the transverse locking assembly is locked to the adjusting plate; after adjusting the two single clamping nozzle assemblies, the rotational locking assembly passes through the arc hole and is locked to the mounting frame; one end of the cylinder assembly is hinged to the mounting frame, and the other end is hinged to the side crank, the middle part of the side crank is hinged to the mounting frame, and the lower part of the side crank is hinged to the movable tooth, and the fixed tooth plate is fixed to the mounting frame and faces the movable tooth, and the cylinder assembly operates to make the movable tooth approach the fixed tooth plate and thereby clamp the pile body. The combination of two single clamping nozzle components greatly improves the pile pulling safety factor and work efficiency. By adjusting the position of the locking bolt through the adjustment plate, several transverse locking components and several rotational locking components, it can be moved forward, backward, left and right to match pile types such as steel sheet piles of different diameters and special specifications. There is no need to equip multiple clamps, which realizes multiple uses of one machine and reduces customer costs.

[0023] 2. It eliminates the need for piles of different diameters or specifications. The current maximum pile diameter is 1200mm, and the range can be increased in the future. It eliminates the tedious process of replacing different clamps, saving time.

[0024] 3. Replace the hanging hammer with an excavator equipped with a pile driver, which greatly reduces the cost of pulling out piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective view of the present invention;

[0026] Figure 2 is another stereogram of the present invention;

[0027] Figure 3 is a three-dimensional diagram of a frame assembly;

[0028] Figure 4 is another perspective view of the frame assembly;

[0029] Figure 5 It is a partial stereogram of the adjustment plate;

[0030] Figure 6 is a three-dimensional diagram of an adjustment plate;

[0031] Figure 7 It is a three-dimensional diagram of a single clamping nozzle assembly;

[0032] Figure 8 is another stereoscopic view of a single nozzle assembly;

[0033] Fig. 9 is another stereoscopic view of a single nozzle assembly;

[0034] Fig.10 It is another three-dimensional view of the single clamping nozzle assembly;

[0035] Fig.11 A three-dimensional diagram of the present invention for clamping steel sheet piles;

[0036] Fig.12 It is another stereoscopic view of the present invention for clamping steel sheet piles.

[0037] In the figure: 10, frame assembly; 11, lower connecting plate; 111, horizontal mounting slide;

[0038] 200, single clamping nozzle assembly; 20, adjustment plate; 201, lateral locking assembly; 202, rotational locking assembly; 21, arc hole; 210, cup head placement slot; 30, mounting frame; 31, top connecting plate; 32, connecting frame; 33, L-shaped connecting frame; 331, fixed tooth mounting portion; 332, lower arc portion; 40, cylinder assembly; 401, first articulated axis; 402, second articulated axis; 403, third articulated axis; 404, fourth articulated axis; 50, side crank; 60, moving tooth; 61, lower arc rib; 70, side locking screw; 90, fixed tooth plate;

[0039] 300. Pile body. DETAILED DESCRIPTION

[0040] Below, in conjunction with the accompanying drawings and specific embodiments, the invention is further described. It should be noted that, under the premise of no conflict, the various embodiments described below or the various technical features can be arbitrarily combined to form a new embodiment. Except as otherwise specified, the materials and equipment used in this embodiment can be purchased from the market. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0041] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "plurality" means two or more, unless otherwise precisely and specifically specified.

[0042] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be connected through an intermediary medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0044] like Figure 1-10As shown, an adjustable double clamp mechanism includes a frame assembly 10 and two single clamping nozzle assemblies 200. The frame assembly 10 includes a lower connecting plate 11, and the lower connecting plate 11 is provided with a transverse mounting groove 111; the single clamping nozzle assembly 200 includes an adjustment plate 20, a plurality of transverse locking assemblies 201, a plurality of rotational locking assemblies 202, a mounting frame 30, a cylinder assembly 40, a side crank 50, a movable tooth 60, and a fixed tooth plate 90. The adjustment plate 20 is provided with a plurality of arc holes 21, and the cup head portion of the bolt of the transverse locking assembly 201 is located in the transverse mounting groove 111. The transverse locking assembly 201 The lower part is locked to the adjustment plate 20; after adjusting the two single clamping nozzle assemblies 200, the rotational locking assembly 202 passes through the arc hole 21 and is locked to the mounting frame 30; one end of the cylinder assembly 40 is hinged to the mounting frame 30, and the other end is hinged to the side crank 50, the middle part of the side crank 50 is hinged to the mounting frame 30, and the lower part of the side crank 50 is hinged to the moving tooth 60, the fixed tooth plate 90 is fixed to the mounting frame 30 and faces the moving tooth 60, and the cylinder assembly 40 operates to make the moving tooth 60 approach the fixed tooth plate 90 and then clamp the pile body 300. The combination of two single clamping nozzle assemblies 200 greatly improves the pile pulling safety factor and work efficiency. By adjusting the position of the locking bolt through the cooperation of the adjusting plate 20, a plurality of transverse locking assemblies 201, and a plurality of rotational locking assemblies 202, the front, back, left, and right movements can be achieved to match pile types such as steel sheet piles of different diameters and special specifications. There is no need to equip multiple clamps, so one machine can be used for multiple purposes and customer costs can be reduced.

[0045] Specifically, in actual application, the plurality of transverse locking components 201 and the plurality of rotational locking components 202 are all in the form of bolts and nuts. When the pile type needs to be switched:

[0046] If the rotation direction adjustment is required: loosen the nuts of all arc holes 21, rotate the adjustment plate 20, make the directions of the two single clamping nozzles in the same horizontal line, and tighten all the bolts connecting the clamping nozzles. In actual application, the arc hole 21 adopts a T-slot.

[0047] If the lateral spacing adjustment is required: loosen the lateral locking assembly 201 , and after adjusting to the desired position, tighten the lateral locking assembly 201 .

[0048] In the first aspect of the present invention, as a preferred embodiment, the lower connecting plate 11 is provided with two transverse mounting grooves 111 arranged along the length direction, the adjusting plate 20 is rectangular, and the four corners of the adjusting plate 20 are provided with through holes for screws to pass through. Specifically, this clamp is a part of the main body of the hydraulic high-frequency vibration pile hammer equipped with the excavator, and is mainly used for pile pulling. The required oil circuit and control are all provided by the excavator, connected to the oil circuit block on the connecting frame of this product through the hydraulic oil pipe, and then transferred to the two single clamps by the hydraulic oil pipe. The thrust generated by the oil cylinder on the clamp is proportionally converted by the crank to push the moving teeth to clamp the pile body, thereby starting the pile pulling operation.

[0049] In the first aspect of the present invention, as a preferred embodiment, the mounting frame 30 includes a top connecting plate 31, and the top connecting plate 31 is provided with a hole for docking the rotational locking assembly 202. The mounting frame 30 also includes a connecting frame 32 and an L-shaped connecting frame 33, and the connecting frame 32 is located between the top connecting plate 31 and the L-shaped connecting frame 33.

[0050] In the first aspect of the present invention, as a preferred embodiment, the arc-shaped hole 21 is provided with a cup head placement groove 210 along the outer side, which is convenient for installation.

[0051] In the first aspect of the present invention, as a preferred embodiment, a fixed tooth mounting portion 331 is provided at the lower portion of the L-shaped connecting frame 33, and the fixed tooth plate 90 is fixed to the fixed tooth mounting portion 331, which further improves the convenience of installation.

[0052] In the first aspect of the present invention, as a preferred embodiment, a lower arc portion 332 is provided at the lower portion of the fixed tooth mounting portion 331, and a lower arc rib 61 is provided at the lower portion of the movable tooth 60, which has a compact structure and strong practicality.

[0053] In the first aspect of the present invention, as a preferred embodiment, the single clamping nozzle assembly 200 also includes a first articulated shaft 401, a second articulated shaft 402, a third articulated shaft 403, and a fourth articulated shaft 404, one end of the cylinder assembly 40 is hinged to the mounting frame 30 through the first articulated shaft 401, and the other end is hinged to the top of the side crank 50 through the second articulated shaft 402, the middle part of the side crank 50 is hinged to the mounting frame 30 through the third articulated shaft 403, and the lower part of the side crank 50 is hinged to the movable tooth 60 through the fourth articulated shaft 404.

[0054] In the first aspect of the present invention, as a preferred embodiment, the single nozzle assembly 200 further includes a side locking screw 70, which passes through the mounting frame 30 and is locked with the fixed tooth plate 90. Specifically, the number of the side locking screws 70 is 2.

[0055] Please refer to Figure 11-12 , it can be seen that by adjusting the angle, it can be used to clamp steel sheet piles. It can be seen that the cumbersome process of replacing different clamping nozzles is eliminated for piles of different diameters or specifications. The current maximum pile diameter is 1200mm, and the range can be increased in the future. It saves time. Instead of a hanging hammer, it can be achieved by using an excavator equipped with a pile driver, which greatly reduces the cost of pulling piles, is more convenient, more stable, better to operate, and more efficient.

[0056] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An adjustable double clamp mechanism, characterized in that: It includes a frame assembly and two single-clip nozzle assemblies, wherein the frame assembly includes a lower connecting plate, and the lower connecting plate is provided with a transverse mounting slide groove; The single clamping nozzle assembly includes an adjustment plate, a plurality of transverse locking assemblies, a plurality of rotational locking assemblies, a mounting frame, a cylinder assembly, a side crank, a movable tooth, and a fixed tooth plate. The adjustment plate is provided with a plurality of arc holes. The cup head portion of the bolt of the transverse locking assembly is located in the transverse mounting slot, and the lower portion of the transverse locking assembly is locked to the adjustment plate. After the two single clamping nozzle assemblies are adjusted, the rotational locking assembly passes through the arc-shaped hole and is locked to the mounting frame; One end of the cylinder assembly is hinged to the mounting frame, and the other end is hinged to the side crank. The middle part of the side crank is hinged to the mounting frame, and the lower part of the side crank is hinged to the moving tooth. The fixed tooth plate is fixed to the mounting frame and faces the moving tooth. The cylinder assembly is operated to make the moving tooth approach the fixed tooth plate and clamp the pile body.

2. The adjustable double clamp mechanism according to claim 1, characterized in that: The lower connecting plate is provided with two transverse mounting grooves arranged along the length direction. The adjusting plate is rectangular, and through holes for screws to pass through are provided at the four corners of the adjusting plate.

3. The adjustable double clamp mechanism according to claim 1, characterized in that: The mounting frame comprises a top connecting plate, and the top connecting plate is provided with a hole for docking with a rotational locking assembly.

4. The adjustable double clamp mechanism according to claim 3, characterized in that: The mounting frame also includes a connecting frame and an L-shaped connecting frame, wherein the connecting frame is located between the top connecting plate and the L-shaped connecting frame.

5. The adjustable double clamp mechanism according to claim 1, characterized in that: The arc-shaped hole is provided with a cup head placement groove along the outer side.

6. The adjustable double clamp mechanism according to claim 4, characterized in that: A fixed tooth mounting portion is provided at the lower portion of the L-shaped connecting frame, and the fixed tooth plate is fixed to the fixed tooth mounting portion.

7. The adjustable double clamp mechanism according to claim 6, characterized in that: A lower arc portion is provided at the lower portion of the fixed tooth mounting portion, and a lower arc rib is provided at the lower portion of the movable tooth.

8. The adjustable double clamp mechanism according to claim 1, characterized in that: The single clamping nozzle assembly also includes a first articulated shaft, a second articulated shaft, a third articulated shaft, and a fourth articulated shaft. One end of the cylinder assembly is hinged to the mounting frame through the first articulated shaft, and the other end is hinged to the top of the side crank through the second articulated shaft. The middle part of the side crank is hinged to the mounting frame through the third articulated shaft, and the lower part of the side crank is hinged to the moving tooth through the fourth articulated shaft.

9. The adjustable double clamp mechanism according to claim 1, characterized in that: The single clamping nozzle assembly also includes a side locking screw, which passes through the mounting frame and is locked with the fixed tooth plate.

10. The adjustable double clamp mechanism according to claim 9, characterized in that: The number of the side locking screws is 2.

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