Static pressure pile machine clamp for composite pile construction

Abstract

The utility model relates to a static pressure pile machine clamp for composite pile construction, and relates to the technical field of static pressure pile machine equipment. The clamping device comprises a clamping sleeve, a clamping unit and a locking assembly. A lifting plate is arranged at the top end of the jacket; the number of the clamping units in each group is two, the clamping units are arranged around the circumference of the axis of the clamping sleeve at equal intervals, and every two adjacent groups of clamping units are staggered along the axis of the clamping sleeve; each clamping unit comprises a supporting seat, a hydraulic cylinder, a switching rod, a first clamping block and a second clamping block, the supporting seat is fixed to the clamping sleeve, the hydraulic cylinder is installed on the supporting seat and is perpendicular to the axis of the clamping sleeve, the switching rod is in sliding connection with a piston rod of the hydraulic cylinder, the first clamping block and the second clamping block are connected to the two ends of the switching rod respectively, the first clamping block is matched with the tubular pile, and the second clamping block is matched with the tubular pile. The second clamping block is matched with the square pile; the locking assemblies and the clamping units are in one-to-one correspondence, and the locking assemblies are installed on the lifting plate and used for moving and fixing the switching rod. The device has the effect that the clamp of the static pressure pile machine can be conveniently replaced.

Description

Technical Field

[0001] The present application relates to the field of static pile driver equipment technology, and in particular to a static pile driver clamp used in composite pile construction. Background Art

[0002] Static pressure pile is a method of engineering pile foundation construction. The static pressure pile method uses hydraulic device as the power, the deadweight of the pile driver and the counterweight on the frame to provide reaction force, and the pile is driven into the foundation through the friction between the clamp and the surface of the pile body.

[0003] At present, static pressure pile clamps are mainly round. When constructing square piles, it is necessary to assemble wedges into a square clamp to clamp the square piles. Due to the narrow operating space of the pile clamp, it is inconvenient to replace the clamp. Utility Model Content

[0004] In order to improve the problem that the replacement of the clamp is inconvenient due to the narrow operating space of the pile clamp, the present application provides a static pile driver clamp for composite pile construction.

[0005] The present application provides a static pile driver clamp for composite pile construction using the following technical solution:

[0006] A static pile driver clamp used in composite pile construction, comprising a clamping sleeve, a clamping unit and a locking assembly;

[0007] A lifting plate is provided at the top of the jacket, and both ends of the jacket are connected;

[0008] The clamping units are provided in a plurality of groups, each group includes two clamping units which are arranged equidistantly around the axis of the jacket, and two adjacent groups of clamping units are staggered along the axis of the jacket;

[0009] Each of the clamping units comprises a support seat, a hydraulic cylinder, a switching rod, a first clamping block and a second clamping block, the support seat is fixed to the jacket, the hydraulic cylinder is mounted on the support seat and is perpendicular to the jacket axis, the switching rod is slidably connected to the piston rod of the hydraulic cylinder, the first clamping block and the second clamping block are respectively connected to the two ends of the switching rod, the first clamping block is adapted to the pipe pile, the second clamping block is adapted to the square pile, and the jacket is provided with through grooves corresponding to the respective hydraulic cylinders, and the through grooves can allow the first clamping block and the second clamping block to pass through;

[0010] The locking assembly corresponds to the clamping unit one by one and is installed on the lifting plate, and is used to move the switching rod and fix the switching rod.

[0011] Optionally, the locking assembly includes a support and a pull rod, the support is vertically connected to the cylinder body of the hydraulic cylinder, both ends of the support are provided with telescopic rods perpendicular to the switching rod, one end of the two telescopic rods away from the support seat is commonly connected with a sliding rod, the sliding rod is slidably connected to the switching rod, and the switching rod is provided with a sliding groove that slidably cooperates with the sliding rod;

[0012] One end of the pull rod is threadedly connected to the switch rod and passes through the slide groove to abut against the slide rod, and the other end passes upward through the lifting plate;

[0013] The lifting plate is provided with a switching groove for the pull rod to move and two feeding grooves, the switching groove is parallel to the moving direction of the switching rod, and the two feeding grooves are respectively vertically connected to the two ends of the switching groove.

[0014] Optionally, when the pull rod moves to the first end of the switching slot, the first clamping block is opposite to the through slot, and when the pull rod moves to the second end of the switching slot, the second clamping block is opposite to the through slot.

[0015] Optionally, a swivel is fixed on the pull rod.

[0016] Optionally, a limiting ring located below the lifting plate is fixed on the pull rod, and a spring is passed through the pull rod, and the spring is located between the limiting ring and the switching rod.

[0017] Optionally, the telescopic rod includes a guide sleeve and a guide rod, the guide sleeve is connected to the support seat, one end of the guide rod is slidably inserted in the guide sleeve, and the other end is connected to the sliding rod.

[0018] Optionally, the thickness of the first clamping block and the second clamping block are both greater than the depth of the through groove.

[0019] Optionally, a chamfer is provided on the edge of the notch end of the through slot which is away from the axis of the jacket.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. The operator moves the pull rod to drive the switch rod to change position, so as to switch the first clamp block and the second clamp block. Since the pull rod is operated above the lifting plate, the space restriction on the operator is reduced, which provides convenience for the operator's switching work. Since the first clamp block and the second clamp block are pre-fixed on the switch rod, the operator does not need to reciprocate loading and unloading during on-site operations, and does not need to worry about storage and other issues;

[0022] 2. The switching slot and the feed slot play a role in positioning the first clamping block and the second clamping block, making it convenient for the operator to operate without observing the situation under the lifting plate;

[0023] 3. The guide sleeve and guide rod guide and stabilize the movement of the switching rod, share the gravity of the switching rod, and help reduce the load on the hydraulic cylinder piston rod during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0025] Figure 2 It is a schematic diagram for illustrating the first clamping block and the second clamping block in an embodiment of the present application.

[0026] Explanation of the reference numerals in the accompanying drawings: 1. Jacket; 11. Lifting plate; 2. Clamping unit; 21. Support seat; 22. Hydraulic cylinder; 23. Switching rod; 24. First clamping block; 25. Second clamping block; 26. Through groove; 3. Locking assembly; 31. Support; 32. Guide sleeve; 33. Guide rod; 34. Sliding rod; 35. Sliding groove; 36. Pull rod; 37. Switching groove; 38. Feed groove; 39. Swivel; 4. Limiting ring; 41. Spring. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0028] In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not indicate the importance of the components, and therefore cannot be understood as a limitation on the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the scope of protection of the present invention.

[0029] like Figure 1 The embodiment of the present application discloses a static pile driver clamp for composite pile construction, including a jacket 1, a clamping unit 2 and a locking assembly 3.

[0030] A lifting plate 11 is provided at the top of the jacket 1 , and both ends of the jacket 1 are connected. The plate is used to connect with the hydraulic power element of the static pile driver to drive the jacket 1 to move up and down, and the pile body passes through the jacket 1 .

[0031] like Figure 1 and Figure 2The clamping units 2 are provided with several groups, each group of which has two clamping units 2 and is equidistantly arranged around the axis of the jacket 1. Two adjacent groups of clamping units 2 are staggered along the axis of the jacket 1. Each clamping unit 2 includes a support seat 21, a hydraulic cylinder 22, a switching rod 23, a first clamping block 24 and a second clamping block 25. The support seat 21 is located below the lifting plate 11, the support seat 21 is fixed to the jacket 1, the hydraulic cylinder 22 is installed on the support seat 21 and is perpendicular to the axis of the jacket 1, the switching rod 23 is horizontally arranged and slidably connected to the piston rod of the hydraulic cylinder 22, the first clamping block 24 and the second clamping block 25 are respectively connected to the two ends of the switching rod 23, the first clamping block 24 is adapted to the pipe pile, and the second clamping block 25 is adapted to the square pile. The jacket 1 is provided with through grooves 26 corresponding to each hydraulic cylinder 22, and the through grooves 26 can allow the first clamping block 24 and the second clamping block 25 to pass through.

[0032] The thickness of the first clamp block 24 and the second clamp block 25 are both greater than the depth of the through groove 26, so that the groove wall of the through groove 26 can provide support to the first clamp block 24 and the second clamp block 25 within a certain movement distance. The edge of the notch end of the through groove 26 away from the axis of the jacket 1 is chamfered, which provides a guiding effect for the first clamp block 24 or the second clamp block 25 when passing through the through groove 26.

[0033] like Figure 1 The locking assembly 3 corresponds to the clamping unit 2 one by one and is installed on the lifting plate 11, and is used to move the switching rod 23 and fix the switching rod 23. The locking assembly 3 includes a support 31 and a pull rod 36. The support 31 is vertically connected to the cylinder body of the hydraulic cylinder 22. Both ends of the support 31 are provided with telescopic rods perpendicular to the switching rod 23. The ends of the two telescopic rods away from the support seat 21 are commonly connected with a sliding rod 34. The sliding rod 34 is slidably connected to the switching rod 23. The switching rod 23 is provided with a sliding groove 35 that slidably cooperates with the sliding rod 34. The length of the sliding rod 34 is not less than the length of the switching rod 23.

[0034] One end of the pull rod 36 is threadedly connected to the switch rod 23 and passes through the slide groove 35 to abut against the slide rod 34, and the other end passes upward through the lifting plate 11. A swivel 39 is fixed on the pull rod 36. A limit ring 4 is coaxially fixed on the pull rod 36, and the limit ring 4 is located below the lifting plate 11. A spring 41 is passed through the pull rod 36, and the spring 41 is located between the limit ring 4 and the switch rod 23.

[0035] like Figure 1 The lifting plate 11 is provided with a switching groove 37 for the pull rod 36 to move and two feed grooves 38 . The switching groove 37 is parallel to the moving direction of the switching rod 23 . The two feed grooves 38 are vertically connected to the two ends of the switching groove 37 .

[0036] The switching groove 37 has a first end and a second end. When the pull rod 36 moves in the switching groove 37, the pull rod 36 drives the switching rod 23 to move, so that the first clamping block 24 or the second clamping block 25 can correspond to the through groove 26. When the pull rod 36 moves to the first end of the switching groove 37, the first clamping block 24 is directly opposite to the through groove 26. When the pull rod 36 moves to the second end of the switching groove 37, the second clamping block 25 is directly opposite to the through groove 26. When the pull rod 36 moves to one end of one of the feed grooves 38 away from the switching groove 37, the first clamping block 24 passes through the through groove 26 and is partially inserted into the jacket 1; when the pull rod 36 moves to the other end of the feed groove 38 away from the switching groove 37, the second clamping block 25 passes through the through groove 26 and is partially inserted into the jacket 1.

[0037] The operator grabs the swivel 39 to move the rod 36, so that the rod 36 moves along the switching groove 37. When the first clamp block 24 or the second clamp block 25 moves to the position opposite to the through groove 26, the swivel 39 is rotated to make the rod 36 and the slide bar 34 close together, and the slide bar 34 and the switching rod 23 are fixed. When working, the hydraulic cylinder 22 drives the switching rod 23 forward, driving the first clamp block 24 or the second clamp block 25 through the through groove 26 and into the jacket 1 to clamp the pile body. The spring 41 is in a compressed state and produces elastic deformation, so that the threaded section of the rod 36 and the switching rod 23 produce an interaction force, reducing the possibility of the rod 36 reversing and loosening.

[0038] like Figure 1 The telescopic rod comprises a guide sleeve 32 and a guide rod 33. The guide sleeve 32 is connected to the support seat 21. One end of the guide rod 33 is slidably inserted in the guide sleeve 32, and the other end is connected to the slide rod 34. The guide sleeve 32 and the guide rod 33 can cooperate with the switch rod 23 to move radially along the jacket 1, and provide a guiding effect for the switch rod 23, thereby reducing the influence of the overall gravity of the switch rod 23 on the movement of the piston rod of the hydraulic cylinder 22.

[0039] Principle of the embodiment of the present application: In the initial state, each first clamping block 24 passes through the corresponding through groove 26 and is inserted into the jacket 1, and each hydraulic cylinder 22 drives the switching rod 23 to move radially along the jacket 1, driving each first clamping block 24 to move closer to or away from each other, thereby clamping or loosening the pipe pile.

[0040] When the pipe pile needs to be replaced with a square pile, the hydraulic cylinder 22 drives the switching rod 23 away from the jacket 1, and the switching rod 23 drives the pull rod 36 to move along the feed groove 38 corresponding to the first end of the switching groove 37. When the pull rod 36 moves to the intersection of the feed groove 38 and the switching groove 37, the first clamping block 24 moves out of the jacket 1, and the operator rotates the swivel 39 to separate the pull rod 36 from the slide rod 34, and then moves the pull rod 36 along the switching groove 37 to the second end of the switching groove 37. At this time, the second clamping block 25 corresponds to the through groove 26, and the operator rotates the swivel 39 to drive the pull rod 36 and the slide rod 34 to press tightly, and then the hydraulic cylinder 22 drives the switching rod 23 forward, driving the second clamping block 25 to be inserted into the jacket 1, so that the square pile can be clamped, which is convenient and quick. Since the operation of the pull rod 36 is located above the lifting plate 11, sufficient space is reserved for the operator.

[0041] In order to meet the clamping requirements of pipe piles and square piles of more sizes, the first clamp block 24 and the second clamp block 25 can be set to be detachably connected to the switching rod 23, preferably fixed with bolts, and the specifications of the first clamp block 24 and the second clamp block 25 can also be increased on the switching rod 23, and the same number of feed grooves 38 are correspondingly set on the lifting plate 11.

[0042] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as generally understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0043] The meaning of "and / or" described in this application means that the situations where each exists alone or both exist at the same time are included.

[0044] The term “connection” as used in this application may mean a direct connection between components or an indirect connection between components via other components.

Claims

1. A static pile driver clamp for composite pile construction, characterized by: It comprises a clamping sleeve (1), a clamping unit (2) and a locking assembly (3); A lifting plate (11) is provided at the top of the jacket (1), and both ends of the jacket (1) are connected; The clamping units (2) are provided in a plurality of groups, each group includes two clamping units (2) which are equidistantly arranged around the axis of the jacket (1), and two adjacent groups of clamping units (2) are staggered along the axis of the jacket (1); Each of the clamping units (2) comprises a support seat (21), a hydraulic cylinder (22), a switching rod (23), a first clamping block (24) and a second clamping block (25); the support seat (21) is fixed to the jacket (1); the hydraulic cylinder (22) is mounted on the support seat (21) and is perpendicular to the axis of the jacket (1); the switching rod (23) is slidably connected to the piston rod of the hydraulic cylinder (22); the first clamping block (24) and the second clamping block (25) are respectively connected to the two ends of the switching rod (23); the first clamping block (24) is adapted to the pipe pile, and the second clamping block (25) is adapted to the square pile; the jacket (1) is provided with through grooves (26) respectively corresponding to the hydraulic cylinders (22); the through grooves (26) can allow the first clamping block (24) and the second clamping block (25) to pass through; The locking assembly (3) corresponds to the clamping unit (2) one by one and is installed on the lifting plate (11), and is used to move the switching rod (23) and fix the switching rod (23).

2. The static pile driver clamp for composite pile construction according to claim 1, characterized in that: The locking assembly (3) comprises a support (31) and a pull rod (36), wherein the support (31) is vertically connected to the cylinder body of the hydraulic cylinder (22), and both ends of the support (31) are provided with telescopic rods perpendicular to the switching rod (23), and one end of the two telescopic rods away from the support seat (21) is commonly connected to a sliding rod (34), and the sliding rod (34) is slidably connected to the switching rod (23), and a sliding groove (35) slidably matched with the sliding rod (34) is provided on the switching rod (23); One end of the pull rod (36) is threadedly connected to the switching rod (23) and passes through the sliding groove (35) to abut against the sliding rod (34), and the other end passes upward through the lifting plate (11); The lifting plate (11) is provided with a switching groove (37) for the pull rod (36) to move and two feed grooves (38); the switching groove (37) is parallel to the moving direction of the switching rod (23); and the two feed grooves (38) are respectively vertically connected to the two ends of the switching groove (37).

3. The static pile driver clamp for composite pile construction according to claim 2, characterized in that: When the pull rod (36) moves to the first end of the switching slot (37), the first clamping block (24) faces the through slot (26); when the pull rod (36) moves to the second end of the switching slot (37), the second clamping block (25) faces the through slot (26).

4. The static pile driver clamp for composite pile construction according to claim 3, characterized in that: A swivel (39) is fixed on the pull rod (36).

5. The static pile driver clamp for composite pile construction according to claim 4, characterized in that: A limiting ring (4) located below the lifting plate (11) is fixed on the pull rod (36), and a spring (41) is passed through the pull rod (36), and the spring (41) is located between the limiting ring (4) and the switching rod (23).

6. The static pile driver clamp for composite pile construction according to claim 2, characterized in that: The telescopic rod comprises a guide sleeve (32) and a guide rod (33); the guide sleeve (32) is connected to the support seat (21); one end of the guide rod (33) is slidably inserted in the guide sleeve (32), and the other end is connected to the sliding rod (34).

7. The static pile driver clamp for composite pile construction according to claim 1, characterized in that: The thickness of the first clamping block (24) and the second clamping block (25) are both greater than the depth of the through slot (26).

8. The static pile driver clamp for composite pile construction according to claim 1, characterized in that: The edge of the notch end of the through groove (26) away from the axis of the jacket (1) is chamfered.

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