Pile clamping device and pile driver

Abstract

The pile clamping device comprises a sliding base, a pile clamping box and at least one driving piece, the pile clamping box is provided with a vertical channel, and the vertical channel is provided with a clamping assembly; the driving piece is installed on the sliding base and used for driving the pile clamping box to move relative to the sliding base, and position adjustment of the vertical channel relative to the sliding base is achieved. According to the pile clamping device, the driving piece is arranged on the sliding base and used for driving the pile clamping box to move relative to the sliding base, and position adjustment of the vertical channel in the pile clamping box relative to the sliding base is achieved; when the pile clamping box is lifted to be sleeved with a pile material, if the pile material and the vertical channel of the pile clamping box are deviated and not concentric, the pile clamping box is driven by the driving piece to move and rotate so as to adjust the positions of the vertical channel and the sliding seat, and therefore the pile clamping box can be aligned with the pile material.

Description

Technical Field

[0001] This application relates to the field of pile driver technology, specifically to a pile clamping device and a pile driver. Background Technology

[0002] With the continuous development of urban construction, pile drivers, as important equipment in foundation engineering construction, directly affect the progress and quality of the project through their performance and efficiency. The structure of a pile driver includes a traveling device and a pile clamping device installed on the traveling device. The pile clamping device is mainly used to clamp and position the pile material, ensuring that the pile material can be accurately and stably driven into the ground.

[0003] However, in existing pile clamping devices, the pile clamping box is mounted on the tower and can move up and down on the tower, but its position is fixed in the horizontal direction after being connected to the tower. This structure cannot adjust the position and angle of the pile clamping box according to actual construction needs, thus limiting the flexibility of the pile clamping box. Furthermore, due to the small stroke of the clamping cylinder of the pile clamping box, it is difficult to align the vertical pile with the pile clamping channel of the pile clamping box, resulting in an uneven process when the pile clamping box is inserted into the pile, affecting construction efficiency and quality. Utility Model Content

[0004] The purpose of this application is to provide a pile clamping device and a pile driver to solve the problems of the inability to adjust the position and angle of the pile clamping box and the difficulty in connecting the pile material with the pile clamping box.

[0005] To achieve the objectives of this application, the following technical solution is provided:

[0006] In a first aspect, this application provides a pile clamping device, comprising:

[0007] Slide;

[0008] A pile clamping box, wherein the pile clamping box is provided with a vertical channel, and the vertical channel is provided with a clamping assembly; and

[0009] At least one driving element is mounted on the slide block and used to drive the pile clamping box to move relative to the slide block, thereby adjusting the position of the vertical channel relative to the slide block.

[0010] In one embodiment, the driving member is a telescopic member having a first end and a second end, the first end of the driving member is hinged to the slide block, the first end of the pile clamping box is hinged to the slide block, and the second end of the driving member is hinged to the second end of the pile clamping box.

[0011] The drive unit drives the pile clamping box to deflect by a predetermined angle in a telescopic manner to adjust the spacing and / or orientation of the vertical channel relative to the slide block.

[0012] In one embodiment, the slide is provided with a first connecting shaft, a second connecting shaft and a first hinge seat, the first hinge seat being hinged to the second connecting shaft, the first end of the pile clamping box is provided with a second hinge seat, and the second end of the pile clamping box is provided with a third connecting shaft and a third hinge seat, the third connecting shaft being hinged to the third hinge seat;

[0013] The first connecting shaft is hinged to the second hinge seat, the first end of the driving member is connected to the second connecting shaft, and the second end of the driving member is connected to the third connecting shaft.

[0014] In one embodiment, the driving component includes a driving cylinder and a piston rod, a first end of the piston rod being telescopically connected to a first end of the driving cylinder, a second end of the piston rod being hinged to a second connecting shaft, and a second end of the driving cylinder being hinged to a third connecting shaft.

[0015] In one embodiment, the clamping assembly is installed in the housing of the pile clamping box. The clamping assembly includes a first clamping member and a second clamping member. The vertical channel is disposed in the housing. The vertical channel includes a first groove wall and a second groove wall disposed opposite to each other in the housing. The first clamping member is connected to the first groove wall, and the second clamping member is connected to the second groove wall. The first clamping member and the second clamping member form a clamping space.

[0016] In one embodiment, the clamping assembly further includes a first clamping drive member and a second clamping drive member disposed on the housing. The first clamping drive member is connected to the first clamping member and drives the first clamping member to move closer to or away from the second clamping member. The second clamping drive member is connected to the second clamping member and drives the second clamping member to move closer to or away from the first clamping member.

[0017] In one embodiment, the housing includes a bottom surface and a top surface arranged vertically opposite each other, and the vertical channel passes through the bottom surface and the top surface;

[0018] The first clamping member includes a first clamping seat and a first guide plate. The first clamping seat is connected to the first groove wall and the first guide plate. The first guide plate is disposed outside the vertical channel. The second clamping member includes a second clamping seat and a second guide plate. The second clamping seat is connected to the second groove wall and the second guide plate. The second guide plate is disposed outside the vertical channel.

[0019] Vertically, the distance between the first guide plate and the second guide plate gradually increases from top to bottom.

[0020] In one embodiment, the slide includes a base, a first support portion and a second support portion, the first end of the pile clamping box and the first end of the driving member are both hinged to the base, and the first support portion and the second support portion are both connected to the base and form a sliding groove.

[0021] In one embodiment, the base includes a first side and a second side disposed opposite to each other, the length of the first side is greater than the length of the second side, the first end of the pile clamping box and the first end of the driving member are both hinged to the base near the first side, and the first support part and the second support part are both connected to the second side.

[0022] Secondly, this application also provides a pile driver, including a tower and a pile clamping device as described in any of the various embodiments of the first aspect, wherein the sliding block is slidably disposed on the tower in a vertical direction.

[0023] Compared with the prior art, this application has at least the following beneficial effects:

[0024] 1. In this application, a driving component is provided on the slide block to drive the pile clamping box to move relative to the slide block, thereby adjusting the position of the vertical channel on the pile clamping box relative to the slide block. When the pile clamping box is lifted and inserted into the pile material, if there is a deviation or misalignment between the vertical channel of the pile material and the pile clamping box, the driving component drives the pile clamping box to rotate and adjust the position of the vertical channel relative to the slide block, thereby aligning the pile clamping box with the pile material.

[0025] 2. In this application, the driving component is a telescopic component with a telescopic mechanism. The structure of the driving component for telescopic movement is relatively simple and easy to implement. By controlling the telescopic amount of the driving component, the rotation angle of the clamping box can be precisely adjusted, thereby achieving precise adjustment of the distance between the vertical channel and the sliding seat.

[0026] 3. In this application, the first clamping member and the second clamping member of the clamping assembly are respectively provided with a first guide plate and a second guide plate. The first guide plate and the second guide plate form a funnel-shaped opening structure, which allows the lifting clamping pile box to be smoothly inserted into the pile material, greatly improving the smoothness of the pile driver inserting the pile material during construction without the need for external force assistance, thus improving construction efficiency and safety. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a perspective view of a pile clamping device according to one embodiment of this application, in an inverted state.

[0029] Figure 2 This is a perspective view of the pile clamping device according to one embodiment of this application, in an inverted state, from another angle.

[0030] Figure 3 This is a top view of a pile clamping device according to one embodiment of the present application (drive member extended state).

[0031] Figure 4 This is a top view of a pile clamping device according to one embodiment of this application (drive member retracted).

[0032] Explanation of reference numerals in the attached figures:

[0033] 100, Slide; 110, First connecting shaft; 120, Second connecting shaft; 130, First hinge seat; 140, Seat body; 141, First side; 142, Second side; 150, First support part; 160, Second support part; 170, Slide groove; 200, Pile clamping box; 210, Vertical channel; 211, First groove wall; 212, Second groove wall; 220, Second hinge seat; 230, Third connecting shaft; 240, Third hinge 250, housing; 251, bottom surface; 252, top surface; 260, first clamping member; 261, first clamping seat; 262, first guide plate; 270, second clamping member; 271, second clamping seat; 272, second guide plate; 280, first clamping drive member; 290, second clamping drive member; 300, drive member; 310, drive cylinder; 320, piston rod; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0034] The following are specific embodiments of this application, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of this application. However, this application is not limited to these embodiments.

[0035] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 This application provides a pile clamping device, including a slide 100, a pile clamping box 200 and at least one driving member 300.

[0036] The sliding block 100 serves as the basic support and installation component of the entire pile clamping device, providing an installation position for the pile clamping box 200 and the drive unit 300. It is usually installed on other structures of the construction equipment, playing a role in connection and load-bearing.

[0037] The pile clamping box 200 is provided with a vertical channel 210, which is used to accommodate the pile material and is the main working area for clamping and fixing the pile material. Its shape and size design must match the shape and size of common piles to ensure stable clamping of the pile. The vertical channel 210 is provided with clamping components to clamp the pile material.

[0038] The driving component 300 is installed on the slide 100 and is used to drive the pile clamping box 200 to move relative to the slide 100, thereby adjusting the position of the vertical channel 210 relative to the slide 100. By setting the driving component 300 on the slide 100, the driving component 300 is used to drive the pile clamping box 200 to move relative to the slide 100, thereby adjusting the position of the vertical channel 210 on the pile clamping box 200 relative to the slide 100. When the pile clamping box 200 is lifted and inserted into the pile, if there is a deviation or misalignment between the pile and the vertical channel 210 of the pile clamping box 200, the driving component 300 drives the pile clamping box 200 to rotate and adjust the position of the vertical channel 210 and the slide 100, thereby aligning the pile clamping box 200 with the pile.

[0039] In one embodiment, the driving member 300 is a telescopic member with a first end and a second end. The first end of the driving member 300 is hinged to the slide 100, the first end of the pile clamping box 200 is hinged to the slide 100, and the second end of the driving member 300 is hinged to the second end of the pile clamping box 200. By hinged to the two ends of the driving member 300 with the slide 100 and the pile clamping box 200 respectively, the driving member 300 can drive the pile clamping box 200 to rotate around its hinge point with the slide 100 during telescopic movement, converting the linear motion of the driving member 300 into the rotational motion of the pile clamping box 200, thereby achieving the purpose of adjusting the distance and / or orientation between the vertical channel 210 and the slide 100.

[0040] Both the first end of the pile clamping box 200 and the first end of the driving member 300 are hinged to the slide 100, and the second end of the driving member 300 is hinged to the second end of the pile clamping box 200, forming an adjustable hinge structure between the pile clamping box 200 and the slide 100. Meanwhile, the structure of the driving member 300 being driven by telescopic movement is relatively simple and easy to implement. By controlling the amount of telescopic movement of the driving member 300, the rotation angle of the pile clamping box 200 can be precisely adjusted, thereby achieving precise adjustment of the distance between the vertical channel 210 and the slide 100.

[0041] In this application, the length direction of the pile clamping box 200 is taken as the first direction X, the width direction of the pile clamping box 200 is taken as the second direction Y, and the vertical direction of the pile clamping box 200 is taken as the third direction Z.

[0042] The first and second ends of the pile clamping box 200 are the two ends of the pile clamping box 200 in the first direction X, and the first and second ends of the driving member 300 are the two ends of the driving member 300 in its own extension direction; the extension and retraction of the driving member 300 can drive the pile clamping box 200 to rotate, so as to adjust the distance between the vertical channel 210 and the slide 100.

[0043] The pile clamping box 200 is hinged at its first and second ends along its length to the slide 100 and the driving member 300, respectively, thereby allowing the pile clamping box 200 to rotate when the driving member 300 extends or retracts. The rotation of the pile clamping box 200 adjusts the distance between the vertical channel 210 and the slide 100 in the width direction, ensuring that the pile clamping device accurately clamps the pile material and guarantees smooth construction.

[0044] It should be noted that the first end of the pile clamping box 200 is the portion of the pile clamping box 200 near one end in the first direction X, and the second end of the pile clamping box 200 is the portion of the pile clamping box 200 near the other end in the first direction X.

[0045] The slide 100 is provided with a first connecting shaft 110, a second connecting shaft 120 and a first hinge seat 130, the first hinge seat 130 is hinged to the second connecting shaft 120, the first end of the pile clamping box 200 is provided with a second hinge seat 220, the second end of the pile clamping box 200 is provided with a third connecting shaft 230 and a third hinge seat 240, the third connecting shaft 230 is hinged to the third hinge seat 240; the first connecting shaft 110 is hinged to the second hinge seat 220, the first end of the driving member 300 is connected to the second connecting shaft 120, and the second end of the driving member 300 is connected to the third connecting shaft 230.

[0046] Specifically, the first connecting shaft 110 is fixedly mounted on the slide 100. Through the connection between the first connecting shaft 110 and the second hinge seat 220, the pile clamping box 200 and the slide 100 are hinged, allowing the pile clamping box 200 to rotate around the first connecting shaft 110, thereby adjusting the distance between the vertical channel 210 and the slide 100. The second connecting shaft 120 is also mounted on the slide 100 and is hinged to the first hinge seat 130. The first connecting shaft 110 is also connected to the first end of the driving member 300. The second connecting shaft 120 connects the slide 100 and the driving member 300, enabling the driving member 300 to move relative to the slide 100 and providing stable support for the driving member 300.

[0047] In one embodiment, the vertical channel 210 extends along the vertical Z direction through both sides of the pile clamping box 200, thereby forming a channel for the pile material to pass through in the vertical Z direction. The vertical Z direction is the height direction of the pile clamping box 200, which facilitates precise control of the rotation of the pile clamping box 200 and adjustment of the distance between the vertical channel 210 and the slide 100.

[0048] In the second direction Y, the hinge positions of the first connecting shaft 110 and the second hinge seat 220 and the hinge positions of the third connecting shaft 230 and the third hinge seat 240 are located on the same side of the pile clamping box 200, so as to reduce the size of the pile clamping device in the first direction X and suppress the interference between the driving member 300 and the pile clamping box 200, thereby improving the stability and reliability of the rotation of the pile clamping box 200.

[0049] The driving component 300 includes a driving cylinder 310 and a piston rod 320. The first end of the piston rod 320 is telescopically connected to the first end of the driving cylinder 310, and the second end of the piston rod 320 is hinged to the second connecting shaft 120. The second end of the driving cylinder 310 is hinged to the third connecting shaft 230. When the driving cylinder 310 drives the piston rod 320 to extend or retract, it changes the length of the driving component 300, thereby driving the pile clamping box 200 to rotate around the first connecting shaft 110, adjusting the distance between the vertical channel 210 and the slide block 100 in the second direction Y.

[0050] The drive unit 300, composed of the drive cylinder 310 and piston rod 320, has a simple structure and is easy to manufacture and maintain. The telescopic connection allows the drive unit 300 to flexibly change its length as needed, thereby driving the pile clamping box 200 to rotate. The drive cylinder 310 can be a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0051] The pile clamping box 200 includes a box body 250, and a clamping assembly including a first clamping member 260 and a second clamping member 270. A vertical channel 210 is disposed on the box body 250, and the vertical channel 210 includes a first groove wall 211 and a second groove wall 212 disposed opposite to the box body 250. The first clamping member 260 is connected to the first groove wall 211, and the second clamping member 270 is connected to the second groove wall 212. The first clamping member 260 and the second clamping member 270 form a clamping space. By respectively setting the first clamping member 260 and the second clamping member 270 on the first groove wall 211 and the second groove wall 212 of the vertical channel 210, a space for clamping pile materials is formed, which can clamp and fix the pile materials placed in the vertical channel 210, preventing the piles from moving or shaking during construction, and improving the safety and quality of construction.

[0052] The clamping assembly also includes a first clamping drive 280 and a second clamping drive 290 disposed on the housing 250. The first clamping drive 280 is connected to the first clamping member 260 and drives the first clamping member 260 to move closer to or away from the second clamping member 270. The second clamping drive 290 is connected to the second clamping member 270 and drives the second clamping member 270 to move closer to or away from the first clamping member 260. By driving the first clamping member 260 and the second clamping member 270 to move respectively through the first clamping drive 280 and the second clamping drive 290, the size of the clamping space can be flexibly adjusted to accommodate piles of different diameters, thereby improving the versatility and adaptability of the pile clamping device.

[0053] In one embodiment, the housing 250 includes a bottom surface 251 and a top surface 252 disposed opposite each other in the vertical Z direction, and a vertical channel 210 passes through the bottom surface 251 and the top surface 252; the first clamping member 260 includes a first clamping seat 261 and a first guide plate 262, the first clamping seat 261 is connected to the first groove wall 211 and the first guide plate 262, and the first guide plate 262 is disposed outside the vertical channel 210; the second clamping member 270 includes a second clamping seat 271 and a second guide plate 272, the second clamping seat 271 is connected to the second groove wall 212 and the second guide plate 272, and the second guide plate 272 is disposed outside the vertical channel 210; in the vertical Z direction, the distance between the first guide plate 262 and the second guide plate 272 gradually increases from the end closer to the bottom surface 251 to the end farther away from the bottom surface 251.

[0054] The first guide plate 262 and the second guide plate 272 are disposed outside the vertical channel 210, and the distance between the first guide plate 262 and the second guide plate 272 gradually increases in the vertical Z direction, forming a funnel-shaped guide structure. This structure can guide the pile material when it is placed into the vertical channel 210, making it easier for the pile material to enter the clamping space between the first clamping member 260 and the second clamping member 270, thus improving the convenience of operation.

[0055] The slide block 100 includes a base 140, a first support portion 150, and a second support portion 160. The base 140 serves as the main structure of the slide block 100 and is hinged to the first end of the pile clamping box 200 and the first end of the driving member 300. The first support portion 150 and the second support portion 160 are connected to the base 140 and together form a sliding groove 170, allowing the slide block 100 to slide on the tower of the pile driver.

[0056] The base 140 includes a first side 141 and a second side 142 disposed opposite to each other. The length of the first side 141 is greater than the length of the second side 142. The first end of the pile clamping box 200 and the first end of the driving member 300 are both hinged to the base 140 near the first side 141. The first support portion 150 and the second support portion 160 are both connected to the second side 142. By hinged to the first end of the pile clamping box 200 and the first end of the driving member 300 near the longer first side 141 of the base 140, and with the second end of the driving member 300 hinged to the pile clamping box 200, the pile clamping box 200 has a longer rotational arm. This allows the pile clamping box 200 to be driven to rotate using a driving member 200 with a smaller driving force, thus reducing costs.

[0057] In practical work, when it is necessary to adjust the position of the pile clamping box 200, this can be achieved by controlling the extension and retraction of the driving component 300. When the driving component 300 extends, it pushes the second end of the pile clamping box 200 outward, causing the pile clamping box 200 to rotate upward around the first connecting shaft 110, increasing the distance between the vertical channel 210 and the slide 100; when the driving component 300 shortens, it pulls the second end of the pile clamping box 200 inward, causing the pile clamping box 200 to rotate downward around the first connecting shaft 110, decreasing the distance between the vertical channel 210 and the slide 100.

[0058] This application provides a pile driver, including a tower and a pile clamping device, with a slide 100 slidably mounted vertically on the tower. Specifically, the tower of the pile driver serves as the support frame for the entire equipment, providing a stable working platform. The slide 100 of the pile clamping device is slidably connected to the tower via a sliding groove 170, allowing it to move up and down on the tower to adjust the height of the pile clamping device.

[0059] When the pile driver is working, the pile is first placed in a suitable position. Then, by controlling the sliding block 100 of the pile clamping device to slide on the tower, the pile clamping box 200 is adjusted to a suitable height. Next, by controlling the extension and retraction of the drive component 300, the angle of the pile clamping box 200 is adjusted, and the tower itself can rotate, so that the vertical channel 210 is aligned with the pile. Then, by controlling the first clamping drive component 280 and the second clamping drive component 290, the first clamping component 260 and the second clamping component 270 are moved inward to clamp the pile.

[0060] During pile driving, the pile clamping device can adjust the clamping position and clamping force as needed to ensure that the pile remains in a stable and accurate position during driving. After one pile is driven in, the first clamping member 260 and the second clamping member 270 can be released, and the position of the pile clamping box 200 can be adjusted to prepare for clamping the next pile.

[0061] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0062] Furthermore, the use of terms such as "first," "second," and "a" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0063] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0064] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

Claims

1. A pile clamping device, characterized in that, include: Slide; A pile clamping box, wherein the pile clamping box is provided with a vertical channel, and the vertical channel is provided with a clamping assembly; and At least one driving element is mounted on the slide block and used to drive the pile clamping box to move relative to the slide block, thereby adjusting the position of the vertical channel relative to the slide block.

2. The pile clamping device according to claim 1, characterized in that, The driving component is a telescopic component with a first end and a second end. The first end of the driving component is hinged to the slide block, the first end of the pile clamping box is hinged to the slide block, and the second end of the driving component is hinged to the second end of the pile clamping box. The drive unit drives the pile clamping box to deflect by a predetermined angle in a telescopic manner to adjust the spacing and / or orientation of the vertical channel relative to the slide block.

3. The pile clamping device according to claim 2, characterized in that, The slide block is provided with a first connecting shaft, a second connecting shaft and a first hinge seat, the first hinge seat is hinged to the second connecting shaft, the first end of the pile clamping box is provided with a second hinge seat, and the second end of the pile clamping box is provided with a third connecting shaft and a third hinge seat, the third connecting shaft is hinged to the third hinge seat; The first connecting shaft is hinged to the second hinge seat, the first end of the driving member is connected to the second connecting shaft, and the second end of the driving member is connected to the third connecting shaft.

4. The pile clamping device according to claim 3, characterized in that, The driving component includes a driving cylinder and a piston rod. The first end of the piston rod is telescopically connected to the first end of the driving cylinder, the second end of the piston rod is hinged to the second connecting shaft, and the second end of the driving cylinder is hinged to the third connecting shaft.

5. The pile clamping device according to claim 1, characterized in that, The clamping assembly is installed on the housing of the pile clamping box. The clamping assembly includes a first clamping member and a second clamping member. The vertical channel is disposed in the housing. The vertical channel includes a first groove wall and a second groove wall disposed opposite to each other in the housing. The first clamping member is connected to the first groove wall, and the second clamping member is connected to the second groove wall. The first clamping member and the second clamping member form a clamping space.

6. The pile clamping device according to claim 5, characterized in that, The clamping assembly further includes a first clamping drive and a second clamping drive disposed on the housing. The first clamping drive is connected to the first clamp and drives the first clamp to move closer to or away from the second clamp. The second clamping drive is connected to the second clamp and drives the second clamp to move closer to or away from the first clamp.

7. The pile clamping device according to claim 5 or 6, characterized in that, The enclosure includes a bottom surface and a top surface that are vertically opposite to each other, and the vertical channel passes through the bottom surface and the top surface; The first clamping member includes a first clamping seat and a first guide plate. The first clamping seat is connected to the first groove wall and the first guide plate. The first guide plate is disposed outside the vertical channel. The second clamping member includes a second clamping seat and a second guide plate. The second clamping seat is connected to the second groove wall and the second guide plate. The second guide plate is disposed outside the vertical channel. Vertically, the distance between the first guide plate and the second guide plate gradually increases from top to bottom.

8. The pile clamping device according to claim 1, characterized in that, The slide includes a base, a first support portion and a second support portion. The first end of the pile clamping box and the first end of the driving member are both hinged to the base. The first support portion and the second support portion are both connected to the base and form a sliding groove.

9. The pile clamping device according to claim 8, characterized in that, The base includes a first side and a second side disposed opposite to each other. The length of the first side is greater than the length of the second side. The first end of the pile clamping box and the first end of the driving member are both hinged to the base near the first side. The first support part and the second support part are both connected to the second side.

10. A pile driver, characterized in that, It includes a tower and a pile clamping device according to any one of claims 1-9, wherein the slide is slidably disposed on the tower in a vertical direction.

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