Hydraulic clamp for assisting pile sinking and pile sinking tool

Abstract

The utility model relates to the technical field of underwater piling, in particular to a hydraulic clamp for assisting pile sinking and a pile sinking tool. The hydraulic clamp for assisting in pile sinking comprises a clamping part and a hydraulic driving unit, the clamping part comprises a first clamping component and a second clamping component, the clamping part is used for clamping the contact position of a pile body and a connecting rod, the first clamping component and / or the second clamping component are / is connected with the hydraulic driving unit, and the hydraulic driving unit is connected with the first clamping component and / or the second clamping component. The hydraulic driving unit is used for enabling the first clamping component and the second clamping component to be close to each other or away from each other; the pile sinking tool comprises a connecting rod and the hydraulic clamp used for assisting in pile sinking, and the connecting rod is connected with the hydraulic clamp used for assisting in pile sinking. Through the arrangement, the step of separating the clamping part from the pile body through underwater cutting operation is omitted, and the construction complexity and the construction risk are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater piling, in particular to a hydraulic clamp and a pile driving tool for assisting pile driving. Background Art

[0002] During underwater construction, it is often necessary to drive piles into the underwater strata as anchor points to facilitate subsequent construction work. Conventional vibratory hammers are commonly used for underwater piling operations. Since conventional vibratory hammers cannot be inserted underwater, one end of the pile must be extended out of the water to connect to the vibratory hammer, which is then used to hammer the pile. After the other end of the pile is driven into the underwater strata by the vibratory hammer, manual underwater cutting is performed to cut off the excess pile, leaving the pile in the underwater strata at a length sufficient for subsequent construction work. While this method is low-cost, it requires underwater cutting, which not only complicates the construction process but also creates significant construction risks. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art in that when using conventional vibratory hammers for pile driving operations, underwater cutting operations are required, which not only complicates the construction process but also generates greater construction risks, and to provide a hydraulic clamp and pile driving tool for assisting pile driving.

[0004] In a first aspect, the utility model provides a hydraulic clamp for assisting pile driving, comprising a clamping portion and a hydraulic drive unit, wherein the clamping portion comprises a first clamping member and a second clamping member, the clamping portion being used to clamp the contact position between the pile body and the connecting rod, the first clamping member and / or the second clamping member being connected to the hydraulic drive unit, and the hydraulic drive unit being used to move the first clamping member and the second clamping member closer to or farther away from each other.

[0005] By operating the hydraulic drive unit, the first clamping member and the second clamping member are moved away from each other, so that the pile body can be placed in the clamping part. After the pile body is placed in the clamping part, the hydraulic drive unit is operated to move the first clamping member and the second clamping member closer to each other until the first clamping member and the second clamping member are clamped at the position where the pile body and the connecting rod contact. At this time, the first clamping member and the second clamping member both abut the position where the pile body and the connecting rod contact.

[0006] The hydraulic clamp is clamped at the contact position between the pile body and the connecting rod, and the end of the pile body close to the connecting rod can be connected to the connecting rod. The piling equipment can drive the pile body clamped by the hydraulic clamp into the anchoring medium by hitting the connecting rod. When the pile body is driven into the anchoring medium to a preset depth, the connecting rod is lifted. Since the pile body can meet the pull-out resistance, the hydraulic clamp can be separated from the pile body and rises with the connecting rod, and the pile body is anchored in the anchoring medium.

[0007] The clamping portion may be a clamping block or a clamping plate, etc., and the hydraulic drive unit may be a hydraulic pump or a hydraulic cylinder, etc.

[0008] With this setting, a conventional vibratory hammer can be used to carry out piling operations on the hydraulic clamp holding the pile body. After the piling is completed, it is only necessary to pull out the hydraulic clamp to separate the hydraulic clamp from the pile body, eliminating the step of underwater cutting operations and reducing the complexity and risk of construction.

[0009] The first clamping member and the second clamping member may be both connected to the hydraulic drive unit, or the first clamping member may be connected to the hydraulic drive unit, or the second clamping member may be connected to the hydraulic drive unit.

[0010] By setting the first clamping member to be connected to the hydraulic drive unit, or setting the second clamping member to be connected to the hydraulic drive unit, the hydraulic drive unit can drive the second clamping member to approach or move away from the first clamping member, or the hydraulic drive unit can drive the first clamping member to approach or move away from the second clamping member, thereby realizing the opening or closing of the clamping part. By only changing the relative position of the second clamping member and the first clamping member, or the relative position of the first clamping member and the second clamping member, the complexity of the clamping part structure is reduced, thereby reducing the convenience of operating the clamping part and improving the reliability of the hydraulic clamp.

[0011] The first clamping member includes a clamping plate and a connecting plate, the second clamping member is located between the clamping plate and the connecting plate, and the hydraulic drive unit includes a hydraulic pump and a bolt, and the bolt passes through the connecting plate and is connected to the second clamping member.

[0012] The bolt passes through the connecting plate and is connected to the second clamping member, so that the second clamping member can move relative to the clamping plate, while the first clamping member is immobile, which can increase the overall rigidity of the hydraulic clamp; at the same time, setting the second clamping member close to or away from the clamping plate simplifies the operation of the hydraulic clamp and improves the convenience of using the hydraulic clamp.

[0013] The second clamping member is a flat plate, and the contact surfaces of the second clamping member and the clamping plate with the pile body are respectively flat.

[0014] By making the contact surfaces of the second clamping member and the clamping plate with the pile body flat, the contact areas of the second clamping member and the clamping plate with the pile body can be increased, thereby increasing the friction between the hydraulic clamp and the pile body.

[0015] The pile body can also be configured as a cylinder or a prism, etc., and the contact surfaces of the first clamping member and the second clamping member with the pile body are arc surfaces or concave surfaces that can match the surface of the pile body.

[0016] The hydraulic pump is provided with a rod and a sleeve, the rod is connected to the sleeve, and the bolt is threadedly connected to the hydraulic pump through the sleeve.

[0017] When it is necessary to make the bolt drive the second clamping member to move toward the clamping plate, operate the hydraulic pump to make the rod and sleeve in the hydraulic pump drive the bolt to move toward the clamping plate until the second clamping member abuts the position where the pile body and the connecting rod contact. Since the sleeve is threadedly connected to the bolt, continuing to move the rod and sleeve toward the clamping plate can make the sleeve screw in along the bolt, thereby applying a pre-tightening force to the second clamping member, thereby improving the reliability of the hydraulic clamp.

[0018] The hydraulic clamp for assisting pile driving further includes a pad, which is arranged on a side of the connecting plate close to the hydraulic pump.

[0019] By providing the pad, when the sleeve is screwed in close to the connecting plate, it can contact the pad, reducing the probability of equipment damage caused by direct contact between the sleeve and the connecting plate.

[0020] There are several hydraulic drive units, the clamping portion is a rectangular parallelepiped, and the several hydraulic drive units are all arranged along the symmetry axis of the length direction of the clamping portion.

[0021] By setting up a plurality of hydraulic drive units, the clamping force of the hydraulic clamp on the pile body can be improved, and the reliability of the hydraulic clamp can be improved; by arranging a plurality of hydraulic drive units along the symmetry axis in the length direction of the clamping part, the ability of the clamping part to maintain balance when subjected to force can be improved, and the tilt or deviation caused by asymmetric load can be reduced. At the same time, the hydraulic drive units arranged along the symmetry axis can evenly distribute the force acting on the clamping part, thereby improving the overall rigidity and reducing the chance of deformation.

[0022] The number of the hydraulic drive units may be 2, 3 or 4, etc.

[0023] The plurality of hydraulic drive units are arranged at equal intervals.

[0024] By arranging the hydraulic drive units at equal intervals, it is helpful to evenly distribute the stress in the hydraulic clamp, provide more consistent support and bending resistance, and thus improve the overall rigidity and stability.

[0025] The hydraulic drive unit is provided with an opening and closing signal receiving module.

[0026] By providing an opening and closing signal receiving module, the hydraulic drive unit can receive instructions to open or close the clamping part through the opening and closing signal receiving module, thereby realizing remote operation of the hydraulic clamp and improving the convenience of using the hydraulic clamp.

[0027] In a second aspect, the utility model provides a pile driving tool, which is provided with a connecting rod and the hydraulic clamp for assisting pile driving, wherein the connecting rod is connected to the hydraulic clamp for assisting pile driving.

[0028] By setting a connecting rod so that the connecting rod extends out of the water, the pile driving equipment transmits the force applied to the connecting rod to the pile body by hitting the connecting rod, thereby driving the pile body into the underwater stratum. By setting the connecting rod, the requirements for the working environment of the pile driving equipment during the piling operation are reduced, and the applicability of the pile driving tool when used is improved.

[0029] The connecting rod may be detachably connected to the hydraulic clamp for assisting pile sinking, may be fixedly connected to the hydraulic clamp for assisting pile sinking, or may be integrally formed with the hydraulic clamp for assisting pile sinking.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The utility model provides a hydraulic clamp for assisting pile driving, comprising a clamping portion and a hydraulic drive unit, wherein the clamping portion comprises a first clamping member and a second clamping member, wherein the clamping portion is used to clamp the position where the pile body and the connecting rod contact each other, and the first clamping member and / or the second clamping member are connected to the hydraulic drive unit, and the hydraulic drive unit is used to move the first clamping member and the second clamping member closer to or farther away from each other. Through this arrangement, a conventional vibratory hammer can be used to perform a pile driving operation on the hydraulic clamp holding the pile body. After the pile driving is completed, it is only necessary to pull out the hydraulic clamp to separate the hydraulic clamp from the pile body, thereby eliminating the step of separating the clamping portion from the pile body through underwater cutting operations, thereby reducing the complexity and risk of construction.

[0032] 2. The utility model provides a pile driving tool, which is provided with a connecting rod and the hydraulic clamp for assisting pile driving. The connecting rod is connected to the hydraulic clamp for assisting pile driving. Through this arrangement, the requirements for the working environment of the pile driving equipment during the piling operation are reduced, and the applicability of the pile driving tool during use is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic cross-sectional view of a hydraulic clamp for assisting pile driving according to Example 1 of the present invention.

[0034] Figure 2 This is a bottom view schematic diagram of the hydraulic clamp for assisting pile driving according to Example 1 provided by the present invention.

[0035] Figure 3 This is a schematic cross-sectional view of the hydraulic clamp for assisting pile driving according to Example 1 of the present invention when clamping a pile body.

[0036] Markings in the figure:

[0037] 1-clamping part, 11-first clamping member, 111-clamping plate, 112-connecting plate, 12-second clamping member, 2-hydraulic drive unit, 21-hydraulic pump, 211-rod, 212-sleeve, 22-bolt, 3-pile body, 4-connecting rod, 5-shim plate. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments. All technologies implemented based on the present invention fall within the scope of the present invention.

[0039] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating orientation or positional relationships, such as "upper," "lower," "left," "right," "center," "inside," and "outside," are based on the orientation or positional relationships shown in the accompanying drawings, or are the orientation or positional relationships in which the product / device / apparatus of the present invention is typically placed when in use. These terms indicating orientation or positional relationships are merely for the purpose of facilitating the description of the present invention or simplifying the description of the specific embodiments to facilitate a quick understanding of the solutions by technicians. They do not indicate or imply that a particular device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship, and therefore should not be construed as limiting the present invention.

[0040] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simply understood that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", and "parallel", and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the present utility model.

[0041] In addition, the expressions "first", "second", "third", etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0042] In addition, in the description of the embodiments of the present invention, "several", "a plurality", and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0043] Furthermore, in the description of the technical solutions of this utility model, unless otherwise expressly specified / defined / restricted, the terms "disposed," "installed," "connected," "connected," "provided with," "laid," and "arranged" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be welding, riveting, bolting, threading, or other commonly used connection methods in the art. Such connections may be mechanical, electrical, or communication connections; they may be direct connections, indirect connections through an intermediate medium, or internal connections between two components.

[0044] Example 1

[0045] like Figure 1-3 As shown, a hydraulic clamp for assisting pile driving includes a clamping part 1 and a hydraulic drive unit 2, wherein the clamping part 1 includes a first clamping member 11 and a second clamping member 12, the clamping part 1 is used to clamp the contact position between the pile body 3 and the connecting rod 4, and the second clamping member 12 is connected to the hydraulic drive unit 2, and the hydraulic drive unit 2 is used to make the first clamping member 11 and the second clamping member 12 move closer to or away from each other.

[0046] By operating the hydraulic drive unit 2, the first clamping member 11 and the second clamping member 12 are moved away from each other, so that the pile body 3 can be placed in the clamping part 1. After the pile body 3 is placed in the clamping part 1, the hydraulic drive unit 2 is operated to move the first clamping member 11 and the second clamping member 12 closer to each other until the first clamping member 11 and the second clamping member 12 are clamped at the position where the pile body 3 and the connecting rod 4 contact. At this time, the first clamping member 11 and the second clamping member 12 both abut the position where the pile body 3 and the connecting rod 4 contact.

[0047] The hydraulic clamp is clamped at the contact position between the pile body 3 and the connecting rod 4. The end of the pile body 3 close to the connecting rod 4 can be connected to the connecting rod 4. The piling equipment can drive the pile body 3 clamped by the hydraulic clamp into the anchoring medium by hitting the connecting rod 4. When the pile body 3 is driven into the anchoring medium to a preset depth, the connecting rod 4 is lifted. Since the pile body 3 can meet the pull-out resistance, the hydraulic clamp can be separated from the pile body 3 and rises with the connecting rod 4, and the pile body 3 is anchored in the anchoring medium.

[0048] The clamping portion 1 is a clamping plate 111 , and the hydraulic drive unit 2 is a hydraulic cylinder.

[0049] Through this setting, a conventional vibratory hammer can be used to carry out piling operations on the hydraulic clamp holding the pile body 3. After the piling is completed, it is only necessary to pull out the hydraulic clamp to separate the hydraulic clamp from the pile body 3, eliminating the step of underwater cutting operations and reducing the complexity and risk of construction.

[0050] By setting the second clamping member 12 to be connected to the hydraulic drive unit 2, the hydraulic drive unit 2 can drive the second clamping member 12 to approach or move away from the first clamping member 11, thereby realizing the opening or closing of the clamping part 1. By only changing the relative position of the second clamping member 12 and the first clamping member 11, the complexity of the structure of the clamping part 1 is reduced, thereby reducing the convenience of operating the clamping part 1 and improving the reliability of the hydraulic clamp.

[0051] The first clamping member 11 includes a clamping plate 111 and a connecting plate 112 , the second clamping member 12 is located between the clamping plate 111 and the connecting plate 112 , and the hydraulic drive unit 2 includes a hydraulic pump 21 and a bolt 22 , the bolt 22 passes through the connecting plate 112 and is connected to the second clamping member 12 .

[0052] The bolt 22 passes through the connecting plate 112 and is connected to the second clamping member 12, so that the second clamping member 12 can move relative to the clamping plate 111, while the first clamping member 11 is immobile, which can increase the overall rigidity of the hydraulic clamp; at the same time, setting the second clamping member 12 close to or away from the clamping plate 111 simplifies the operation of the hydraulic clamp and improves the convenience of using the hydraulic clamp.

[0053] The second clamping member 12 is a flat plate, and the contact surfaces of the second clamping member 12 and the clamping plate 111 with the pile body 3 are flat surfaces.

[0054] By making the contact surfaces of the second clamping member 12 and the clamping plate 111 with the pile body 3 flat, the contact areas of the second clamping member 12 and the clamping plate 111 with the pile body 3 can be increased, thereby increasing the friction between the hydraulic clamp and the pile body 3.

[0055] The hydraulic pump 21 is provided with a rod 211 and a sleeve 212 . The rod 211 is connected to the sleeve 212 . The bolt 22 is screwed to the hydraulic pump 21 through the sleeve 212 .

[0056] When it is necessary to make the bolt 22 drive the second clamping member 12 to move in the direction close to the clamping plate 111, the hydraulic pump 21 is operated to make the rod 211 and sleeve 212 in the hydraulic pump 21 drive the bolt 22 to move in the direction close to the clamping plate 111 until the second clamping member 12 abuts against the position where the pile body 3 and the connecting rod 4 contact. Since the sleeve 212 is screwed to the bolt 22, the rod 211 and the sleeve 212 continue to move in the direction close to the clamping plate 111, so that the sleeve 212 can be screwed in along the bolt 22, thereby applying a pre-tightening force to the second clamping member 12, thereby improving the reliability of the hydraulic clamp.

[0057] The hydraulic clamp for assisting pile driving further includes a backing plate 5 , which is disposed on a side of the connecting plate 112 close to the hydraulic pump 21 .

[0058] By providing the backing plate 5 , when the sleeve 212 is screwed in close to the connecting plate 112 , it can contact the backing plate 5 , thereby reducing the probability of equipment damage caused by direct contact between the sleeve 212 and the connecting plate 112 .

[0059] The number of the hydraulic drive units 2 is two, the clamping portion 1 is a rectangular parallelepiped, and the plurality of hydraulic drive units 2 are arranged along the symmetry axis of the length direction of the clamping portion 1 .

[0060] By setting up two hydraulic drive units 2, the clamping force of the hydraulic clamp on the pile body 3 can be improved, and the reliability of the hydraulic clamp can be improved; by setting up several hydraulic drive units 2 along the symmetry axis in the length direction of the clamping part 1, the ability of the clamping part 1 to maintain balance when subjected to force can be improved, and the tilt or offset caused by asymmetric load can be reduced. At the same time, the hydraulic drive units 2 set along the symmetry axis can evenly distribute the force acting on the clamping part 1, thereby improving the overall rigidity and reducing the chance of deformation.

[0061] The hydraulic drive unit 2 is provided with an opening and closing signal receiving module.

[0062] By providing an opening and closing signal receiving module, the hydraulic drive unit 2 can receive instructions to open or close the clamping part 1 through the opening and closing signal receiving module, thereby realizing remote operation of the hydraulic clamp and improving the convenience of using the hydraulic clamp.

[0063] Example 2

[0064] A pile driving tool is provided with a connecting rod 4 and the hydraulic clamp for assisting pile driving, wherein the connecting rod 4 is connected to the hydraulic clamp for assisting pile driving.

[0065] By setting the connecting rod 4 so that the connecting rod 4 extends out of the water, the pile driving equipment transmits the force applied to the connecting rod 4 to the pile body 3, thereby driving the pile body 3 into the underwater stratum. By setting the connecting rod 4, the requirements for the working environment of the pile driving equipment during the pile driving operation are reduced, and the applicability of the pile driving tool when used is improved.

[0066] The connecting rod 4 is fixedly connected to a hydraulic clamp for assisting pile sinking.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hydraulic clamp for assisting pile driving, characterized in that: The invention comprises a clamping portion (1) and a hydraulic drive unit (2), wherein the clamping portion (1) comprises a first clamping member (11) and a second clamping member (12), the clamping portion (1) is used to clamp the contact position between the pile body (3) and the connecting rod (4), the first clamping member (11) and / or the second clamping member (12) are connected to the hydraulic drive unit (2), and the hydraulic drive unit (2) is used to move the first clamping member (11) and the second clamping member (12) closer to or farther away from each other.

2. A hydraulic clamp for assisting pile driving according to claim 1, characterized in that: The second clamping member (12) is connected to the hydraulic drive unit (2).

3. A hydraulic clamp for assisting pile driving according to claim 2, characterized in that: The first clamping member (11) comprises a clamping plate (111) and a connecting plate (112); the second clamping member (12) is located between the clamping plate (111) and the connecting plate (112); the hydraulic drive unit (2) comprises a hydraulic pump (21) and a bolt (22); the bolt (22) passes through the connecting plate (112) and is connected to the second clamping member (12).

4. A hydraulic clamp for assisting pile driving according to claim 3, characterized in that: The second clamping member (12) is a flat plate, and the contact surfaces of the second clamping member (12) and the clamping plate (111) with the pile body (3) are respectively flat.

5. The hydraulic clamp for assisting pile driving according to claim 3, characterized in that: The hydraulic pump (21) is provided with a rod (211) and a sleeve (212), the rod (211) is connected to the sleeve (212), and the bolt (22) is screwed to the hydraulic pump (21) through the sleeve (212).

6. The hydraulic clamp for assisting pile driving according to claim 3, characterized in that: It also includes a pad (5), which is arranged on a side of the connecting plate (112) close to the hydraulic pump (21).

7. A hydraulic clamp for assisting pile driving according to any one of claims 1 to 6, characterized in that: There are a plurality of hydraulic drive units (2), the clamping portion (1) is a rectangular parallelepiped, and the plurality of hydraulic drive units (2) are arranged along a symmetric axis in the length direction of the clamping portion (1).

8. The hydraulic clamp for assisting pile driving according to claim 7, characterized in that: The plurality of hydraulic drive units (2) are arranged at equal intervals.

9. The hydraulic clamp for assisting pile driving according to claim 7, characterized in that: The hydraulic drive unit (2) is provided with an opening and closing signal receiving module.

10. A pile driving tool, characterized in that: A connecting rod (4) and a hydraulic clamp for assisting pile sinking according to any one of claims 1 to 9 are provided, wherein the connecting rod (4) is connected to the hydraulic clamp for assisting pile sinking.

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