Adjustable double-clamping mechanism

Abstract

The utility model discloses an adjustable double-clamping mechanism which comprises a frame body assembly and two single-clamping-nozzle assemblies, the frame body assembly comprises a lower connecting plate, and the lower connecting plate is provided with a transverse installation sliding groove; 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] This utility model relates to steel pipe pile technology, and more particularly to an adjustable double clamping mechanism. Background Technology

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

[0003] Patent document with application number "CN201320297198.5" discloses a steel pipe clamp for a vibratory pile hammer, comprising a clamping head, a hydraulic cylinder, a rubber plate, left and right arms, and a clamping seat. The hydraulic cylinder is located below the clamping head, and a rubber plate is located at the lower end of the hydraulic cylinder. The two sides of the hydraulic cylinder are respectively hinged to the upper ends of the left and right arms. The lower ends of the left and right arms are respectively hinged to the two sides of the clamping seat. A protective seat is located at the lower end of the clamping seat, and a guide block is provided on the protective seat. The invention is characterized by: a core post being provided inside the clamping seat, the core post cooperating with the clamping seat; the upper end of the core post being connected to a fixing device, which is connected to the upper inner side of the clamping seat; and the lower end of the core post being tapered. This invention effectively overcomes the defect of the pile top twisting due to uneven force.

[0004] Patent document with application number "CN202411612124.5" discloses a combined pile driving process and device for steel pipe piles and sheet piles, belonging to the field of pile foundation construction technology. The combined pile driving process includes the following steps: S1, assembling steel pipe piles and sheet piles to form a combined body; S2, setting the dimensions of the first, second, and third hydraulic clamps according to the dimensions of the combined body, and installing the three hydraulic clamps on the slide rails of the vibratory hammer; S3, clamping the first and second hydraulic clamps on both sides of the top of the steel pipe pile, and clamping the third hydraulic clamp on the top of the sheet pile, so that the center of gravity of the vibratory hammer and the center of gravity of the combined body are on the same vertical line; S4, performing combined pile driving. This combined pile driving process can utilize the resistance of the sheet pile to prevent the steel pipe pile from rotating in the soil, thereby ensuring that the locking mechanism of the sheet pile overlaps with the steel pipe pile according to the design position, avoiding deviations in the actual construction position.

[0005] The aforementioned patent documents, in conjunction with existing technology, reveal the following drawbacks of existing adjustable double-clamp mechanisms:

[0006] 1. Existing steel pipe pile or casing pile clamps only have one clamp head, which can easily damage the pile body when extracting large piles.

[0007] 2. It can only extract relatively short piles with a maximum diameter of 600-800mm; it is not sufficient for larger or longer piles.

[0008] 3. Large steel sheet piles or large pipe piles are mostly constructed using a pendulum, which requires a large number of personnel and is not very efficient.

[0009] 4. There is no better pile extraction equipment for special pile specifications. Utility Model Content

[0010] In order to overcome the shortcomings of the prior art, this utility model provides an adjustable double clamping mechanism, which solves the problem of adjustable double clamping mechanisms.

[0011] The first aspect of this utility model is to provide an adjustable double clamping mechanism, including a frame assembly and two single clamping nozzle assemblies. The frame assembly includes a lower connecting plate with a transverse mounting groove. Each single clamping nozzle assembly includes an adjusting plate, several transverse locking components, several rotary locking components, a mounting frame, a hydraulic cylinder assembly, a side crank, a moving tooth, and a fixed tooth plate. The adjusting plate has several arc-shaped holes. The cup head of the bolt of the transverse locking component is located in the transverse mounting groove, and the lower part of the transverse locking component is locked to the adjusting plate. After the two single clamping nozzle assemblies are adjusted, the rotary locking component passes through the arc-shaped holes and is locked to the mounting frame. One end of the hydraulic 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 operation of the hydraulic cylinder assembly causes the moving tooth to approach the fixed tooth plate, thereby clamping the pile.

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

[0013] In a first aspect of this utility model, as a preferred embodiment, the mounting bracket includes a top connecting plate, the top connecting plate having holes for engaging a rotary locking assembly.

[0014] In a preferred embodiment of the first aspect of this utility model, the mounting bracket further includes a connecting bracket and an L-shaped connecting bracket, wherein the connecting bracket is located between the top connecting plate and the L-shaped connecting bracket.

[0015] In a preferred embodiment of the first aspect of this utility model, the arc-shaped hole is provided with a cup head placement groove along its outer side.

[0016] In a preferred embodiment of the first aspect of this utility model, the lower part of the L-shaped connecting frame is provided with a fixing tooth mounting part, and the fixing tooth plate is fixed to the fixing tooth mounting part.

[0017] In a preferred embodiment of the first aspect of this utility model, the lower part of the fixed tooth mounting portion is provided with a lower arc-shaped portion, and the lower part of the movable tooth is provided with a lower arc-shaped rib.

[0018] In a preferred embodiment of the first aspect of this utility model, the single clamping nozzle assembly further includes a first hinge shaft, a second hinge shaft, a third hinge shaft, and a fourth hinge shaft. One end of the hydraulic cylinder assembly is hinged to the mounting bracket via the first hinge shaft, and the other end is hinged to the top of the side crank via the second hinge shaft. The middle part of the side crank is hinged to the mounting bracket via the third hinge shaft, and the lower part of the side crank is hinged to the moving gear via the fourth hinge shaft.

[0019] In a first aspect of this utility model, as a preferred embodiment, the single clamping nozzle assembly further includes a side locking screw, which passes through the mounting bracket and locks to the fixing tooth plate.

[0020] In a preferred embodiment of the first aspect of this utility model, the number of side locking screws is two.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. The frame assembly includes a lower connecting plate, which has a transverse mounting groove; the single clamping nozzle assembly includes an adjusting plate, several transverse locking components, several rotary locking components, a mounting frame, a hydraulic cylinder assembly, a side crank, a moving tooth, and a fixed tooth plate. The adjusting plate has several arc-shaped holes. The cup head of the bolt of the transverse locking component is located in the transverse mounting groove, and the lower part of the transverse locking component is locked to the adjusting plate. After adjusting the two single clamping nozzle assemblies, the rotary locking component passes through the arc-shaped holes and is locked to the mounting frame. One end of the hydraulic 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 operation of the hydraulic cylinder assembly causes the moving tooth to approach the fixed tooth plate and thus clamp the pile. The machine uses a combination of two single clamping components, which greatly improves the safety factor and work efficiency of pile extraction. By adjusting the position of the locking bolts through the coordination of the adjusting plate, several horizontal locking components and several directional locking components, it can move forward, backward and left and right to match different diameters and special specifications of steel sheet piles and other pile types. It eliminates the need to equip multiple clamps, realizes multi-purpose use, and reduces customer costs.

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

[0024] 3. It can replace the hammer pile driver and can be achieved by using an excavator equipped with a pile driver, which greatly reduces the cost of pile extraction. Attached Figure Description

[0025] Figure 1 This is a perspective view of the present utility model;

[0026] Figure 2 This is another perspective view of the present invention;

[0027] Figure 3 A 3D view of the frame components;

[0028] Figure 4 Another perspective view of the frame components;

[0029] Figure 5 This is a partial 3D view of the adjustment plate;

[0030] Figure 6 A 3D view of the adjustment plate;

[0031] Figure 7 A 3D view of a single clamping nozzle assembly;

[0032] Figure 8 Another perspective view of the single clamping nozzle assembly;

[0033] Figure 9 Another perspective view of the single clamping nozzle assembly;

[0034] Figure 10 Another perspective view of the single clamping nozzle assembly;

[0035] Figure 11 This is a perspective view of the present invention used for clamped steel sheet piles;

[0036] Figure 12 This is another perspective view of the present invention used for clamping steel sheet piles.

[0037] In the diagram: 10. Frame assembly; 11. Lower connecting plate; 111. Horizontal mounting slide;

[0038] 200. Single clamping nozzle assembly; 20. Adjusting plate; 201. Lateral locking assembly; 202. Rotary locking assembly; 21. Arc-shaped hole; 210. Cup head placement slot; 30. Mounting bracket; 31. Top connecting plate; 32. Connecting bracket; 33. L-shaped connecting bracket; 331. Fixed tooth mounting part; 332. Lower arc-shaped part; 40. Hydraulic cylinder assembly; 401. First hinge shaft; 402. Second hinge shaft; 403. Third hinge shaft; 404. Fourth hinge shaft; 50. Side crank; 60. Moving tooth; 61. Lower arc-shaped rib; 70. Side locking screw; 90. Fixed tooth plate;

[0039] 300. Pile body. Detailed Implementation

[0040] The utility model will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0041] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[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, which has a transverse mounting groove 111. The single-clamping nozzle assembly 200 includes an adjusting plate 20, several transverse locking components 201, several rotary locking components 202, a mounting bracket 30, a hydraulic cylinder assembly 40, a side crank 50, a moving gear 60, and a fixed gear plate 90. The adjusting plate 20 has several arc-shaped holes 21. The cup head portion of the bolt of the transverse locking component 201 is located in the transverse mounting groove 111. The lower part is locked to the adjusting plate 20; after the two single clamping nozzle assemblies 200 are adjusted, the rotary locking assembly 202 passes through the arc-shaped hole 21 and is locked to the mounting frame 30; one end of the hydraulic 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. The hydraulic cylinder assembly 40 operates to make the moving tooth 60 approach the fixed tooth plate 90 and thus clamp the pile 300. The combination of two single clamping components 200 greatly improves the safety factor and work efficiency of pile extraction. By adjusting the position of the locking bolts through the cooperation of the adjusting plate 20, several horizontal locking components 201, and several directional locking components 202, it can move forward, backward, left, and right to match different diameters and special specifications of steel sheet piles and other pile types. It eliminates the need to equip multiple clamps, realizes multi-purpose use, and reduces customer costs.

[0045] Specifically, in practical applications, several transverse locking components 201 and several spiral locking components 202 all use bolts and nuts for connection. When it is necessary to change the pile type:

[0046] If rotation adjustment is required: Loosen all nuts on the arc-shaped holes 21, rotate the adjusting plate 20 until the two single clamps are aligned horizontally, and tighten all bolts connecting the clamps. In practical applications, the arc-shaped holes 21 use T-slots.

[0047] If lateral spacing adjustment is required: loosen the lateral locking component 201, adjust it to the correct position, and then tighten the lateral locking component 201.

[0048] In a preferred embodiment of the first aspect of this utility model, 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 part of the main body of the hydraulic high-frequency vibratory pile hammer that is matched with the excavator. It is mainly used for pile extraction. The required oil circuit and control are provided from the excavator. It is connected to the oil circuit block on the connecting frame of this product through hydraulic oil pipes, and then transferred to two single clamping nozzles through hydraulic oil pipes. The thrust generated by the oil cylinder on the clamping nozzle is proportionally converted by the crank, which pushes the moving teeth to clamp the pile body, thereby starting the pile extraction operation.

[0049] In a preferred embodiment of the first aspect of this utility model, the mounting bracket 30 includes a top connecting plate 31, which has holes for engaging the rotary locking assembly 202. The mounting bracket 30 also includes a connecting bracket 32 ​​and an L-shaped connecting bracket 33, with the connecting bracket 32 ​​located between the top connecting plate 31 and the L-shaped connecting bracket 33.

[0050] In a preferred embodiment of the first aspect of this utility model, the arc-shaped hole 21 is provided with a cup head placement groove 210 along the outer side, which facilitates installation.

[0051] In a preferred embodiment of the first aspect of this utility model, the lower part of the L-shaped connecting frame 33 is provided with a fixing tooth mounting part 331, and the fixing tooth plate 90 is fixed to the fixing tooth mounting part 331, which further improves the ease of installation.

[0052] In a preferred embodiment of the first aspect of this utility model, the lower part of the fixed tooth mounting part 331 is provided with a lower arc-shaped part 332, and the lower part of the movable tooth 60 is provided with a lower arc-shaped rib 61, which has a compact structure and strong practicality.

[0053] In a preferred embodiment of the first aspect of this utility model, the single clamping nozzle assembly 200 further includes a first hinge shaft 401, a second hinge shaft 402, a third hinge shaft 403, and a fourth hinge shaft 404. One end of the cylinder assembly 40 is hinged to the mounting bracket 30 via the first hinge shaft 401, and the other end is hinged to the top of the side crank 50 via the second hinge shaft 402. The middle part of the side crank 50 is hinged to the mounting bracket 30 via the third hinge shaft 403, and the lower part of the side crank 50 is hinged to the moving gear 60 via the fourth hinge shaft 404.

[0054] In a preferred embodiment of the first aspect of this utility model, the single clamping nozzle assembly 200 further includes a side locking screw 70, which passes through the mounting bracket 30 and locks to the fixing toothed plate 90. Specifically, there are two side locking screws 70.

[0055] Please refer to the following for details. Figure 11-12 As can be seen, by adjusting the angle, it can be used to clamp steel sheet piles. It eliminates the need for the cumbersome process of changing different clamping nozzles for piles of different diameters or specifications (currently the maximum pile diameter is 1200mm, with potential for future expansion), saving time. Replacing a plumb bob, it can be used with an excavator equipped with a pile driver, significantly reducing pile extraction costs, making it more convenient, stable, easier to operate, and more efficient.

[0056] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An adjustable double clamp mechanism, characterized in that, The frame body assembly includes a lower connecting plate provided with transverse mounting sliding grooves; The single-clamping-mouth assembly includes an adjusting plate provided with arc-shaped holes, transverse locking assemblies, rotary locking assemblies, a mounting frame, an oil cylinder assembly, a side crank, a moving tooth, and a fixed tooth plate. After the two single-clamping-mouth assemblies are adjusted, the rotary locking assemblies are locked to the mounting frame through the arc-shaped holes. One end of the oil cylinder assembly is hinged to the mounting frame, and the other end is hinged to the side crank.

2. The adjustable double clamp mechanism of claim 1, wherein: 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.

3. The adjustable double clamp mechanism of claim 1, wherein: The fixed tooth plate is fixed to the mounting frame and faces the moving tooth.

4. The adjustable double clamp mechanism of claim 3, wherein: The adjusting plate is rectangular, and the four corners of the adjusting plate are provided with through holes for screw passing.

5. The adjustable double clamp mechanism of claim 1, wherein: The mounting frame includes a top connecting plate provided with holes for connecting the rotary locking assemblies.

6. The adjustable double clamp mechanism of claim 4, wherein: The mounting frame also includes a connecting frame and an L-shaped connecting frame.

7. The adjustable double clamp mechanism of claim 6, wherein: The connecting frame is located between the top connecting plate and the L-shaped connecting frame.

8. The adjustable double clamp mechanism of claim 1, wherein: The arc-shaped holes are provided with cup head placement grooves on the outer side.

9. The adjustable double clamping mechanism of claim 1, wherein: The lower part of the L-shaped connecting frame is provided with a fixed tooth mounting part, and the fixed tooth plate is fixed to the fixed tooth mounting part.

10. The adjustable double clamp mechanism of claim 9, wherein: The lower part of the fixed tooth mounting part is provided with a lower arc-shaped part, and the lower part of the moving tooth is provided with a lower arc-shaped rib. The single-clamping-mouth assembly also includes a first hinge shaft, a second hinge shaft, a third hinge shaft, and a fourth hinge shaft. One end of the oil cylinder assembly is hinged to the mounting frame through the first hinge shaft, and the other end is hinged to the top of the side crank through the second hinge shaft. The middle part of the side crank is hinged to the mounting frame through the third hinge shaft, and the lower part of the side crank is hinged to the moving tooth through the fourth hinge shaft. The single-clamping-mouth assembly also includes side locking screws. The number of side locking screws is two.

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