CN221421941U - Internal support and external holding type composite clamp - Google Patents
Internal support and external holding type composite clamp Download PDFInfo
- Publication number
- CN221421941U CN221421941U CN202323110904.3U CN202323110904U CN221421941U CN 221421941 U CN221421941 U CN 221421941U CN 202323110904 U CN202323110904 U CN 202323110904U CN 221421941 U CN221421941 U CN 221421941U
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- China
- Prior art keywords
- wedge
- sleeve
- cavity
- shaped
- pushing block
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- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 238000010276 construction Methods 0.000 abstract description 6
- 230000002457 bidirectional effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model relates to the technical field of pile foundation construction, in particular to an internal-bracing external-holding type composite clamp which comprises a first cavity formed by a sleeve arranged in the middle, wherein a clamping oil cylinder and a first wedge-shaped pushing block connected with the clamping oil cylinder are arranged in the first cavity, and a first wedge-shaped clamping block matched with the first wedge-shaped pushing block is also arranged in the first cavity; the second cavity is arranged at the periphery of the sleeve, and a second wedge-shaped pushing block and a second wedge-shaped clamping block matched with the second wedge-shaped pushing block are arranged in the second cavity; a gap is reserved between the outer wall of the first cavity and the outer wall of the second cavity. The utility model has the advantages that: and (3) bidirectional support: through the design of internal stay clamping jaw and outer clamping jaw, this device can support and hug tightly to double-sleeve pipe from inside and outside simultaneously, and this kind of two-way support design can provide more stable and even power, reduces the removal or the slip of double-sleeve pipe in the operation process to improve the precision and the stability of work.
Description
Technical Field
The utility model relates to the technical field of pile foundation construction, in particular to an internal stay external holding type composite clamp.
Background
The traditional double-chuck clamp is characterized in that the design of the traditional double-chuck clamp is initially designed to only consider the vertical vibration of the traditional vibration pile hammer, and the transverse vibration is not considered, so that when the novel vibration pile hammer, namely the circular arc horizontal vibration type vibration pile hammer (such as a patent CN 201910999292-a vibration excitation device and an arc vibration type pile sinking machine), is used for construction, the traditional double-chuck clamp cannot bear horizontal shearing force due to the horizontal vibration mode of the circular arc vibration type vibration pile hammer, so that screws are loosened and sheared, and certain assembly gaps exist in the horizontal direction of certain parts of the traditional double-chuck clamp, and all parts collide with each other under the horizontal vibration to generate extremely large noise, so that the traditional double-chuck clamp is not suitable for the circular arc horizontal vibration type vibration pile hammer.
The single-side clamping type clamp suitable for the circular arc horizontal oscillation type vibrating pile hammer is an external holding type clamp (clamping jaws only clamp the outer surface of a pile, such as a pile clamping device special for a concrete precast pile in a patent CN 201220090851) and an internal supporting type clamp (clamping jaws only clamp the inner surface of the pile, such as a pile clamping device of a vibrating pile hammer with an internal supporting type clamping structure in a patent CN 202011434085) and a using method, and can be used when a common steel pipe pile is constructed. However, in the double-sleeve construction method, the clamp is required to clamp both the inner wall of the inner tube and the outer wall of the outer tube.
Disclosure of utility model
The utility model aims to solve the technical problem of overcoming the defects in the prior art, and provides an internal-bracing external-holding type composite clamp which can meet the requirement of using a double-sleeve construction method on an arc horizontal oscillation type vibrating pile hammer and can clamp the inner wall of an inner pipe and the outer wall of an outer pipe.
In order to achieve the above purpose, the inner-supporting outer-holding type composite clamp is designed and comprises a first cavity formed by a sleeve arranged in the middle, wherein a clamping oil cylinder and a first wedge-shaped pushing block connected with the clamping oil cylinder are arranged in the first cavity, the clamping oil cylinder drives the first wedge-shaped pushing block to axially move along the sleeve, a first wedge-shaped clamping block matched with the first wedge-shaped pushing block is also arranged in the first cavity, the matching surface of the first wedge-shaped clamping block and the first wedge-shaped pushing block is an inclined surface, and the first wedge-shaped pushing block drives the first wedge-shaped clamping block to radially move along the sleeve; the second cavity is arranged at the periphery of the sleeve, a second wedge-shaped pushing block and a second wedge-shaped clamping block matched with the second wedge-shaped pushing block are arranged in the second cavity, the matching surface of the second wedge-shaped clamping block and the second wedge-shaped pushing block is an inclined surface, and the axial movement of the second wedge-shaped pushing block drives the second wedge-shaped clamping block to move radially; and a gap is reserved between the outer wall of the first cavity and the outer wall of the second cavity and is used for accommodating the double sleeves.
The utility model also has the following preferable technical scheme:
1. The sleeve upper portion is equipped with the connecting plate, and the connecting plate bottom is equipped with the structure of holding outward, and the structure of holding outward is located the sleeve outside, is equipped with the second cavity in the structure of holding outward.
2. And square holes are formed in the matched positions of the outer wall of the sleeve and the first wedge-shaped clamping block, so that the first wedge-shaped clamping block stretches out of the sleeve when moving radially.
3. And a hydraulic oil cylinder is arranged in the second cavity to drive the second wedge-shaped pushing block to move up and down.
4. And one side of the outer holding structure, which is close to the sleeve, is provided with a square hole so that the second wedge-shaped clamping block stretches out of the outer holding structure when moving radially.
5. The second wedge-shaped clamping block is provided with an outer holding clamping jaw at the outer side, the double sleeve is held tightly from the outer side, the first wedge-shaped clamping block is provided with an inner supporting clamping jaw at the outer side, and the double sleeve is supported from the inner side.
Compared with the prior art, the utility model has the advantages that:
1. And (3) bidirectional support: through the design of the inner supporting clamping jaw and the outer holding clamping jaw, the device can simultaneously support and hold the double sleeve from the inside and the outside, and the bidirectional support design can provide more stable and uniform force, reduce the movement or sliding of the double sleeve in the operation process, thereby improving the working precision and stability;
2. high efficiency: the hydraulic cylinder in the device can drive the wedge-shaped pushing block to move up and down, so that the clamp can rapidly and accurately clamp and loosen, and the working efficiency is improved;
3. the adaptability is strong: the design of the clamp allows the first wedge-shaped clamping block and the second wedge-shaped clamping block to extend out of the sleeve and the outward holding structure when in radial movement, so that the clamp can adapt to double sleeves with different diameters and lengths, and has strong adaptability;
4. The structure is compact: all components, including the clamping cylinder, wedge-shaped push block, wedge-shaped clamping block, outboard structure, etc., are skillfully integrated within one sleeve.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
In the figure: 1. a first cavity; 2. clamping an oil cylinder; 3. a first wedge-shaped push block; 4. a sleeve; 5. a first wedge-shaped clamping block; 6. a second cavity; 7. a second wedge-shaped push block; 8. a second wedge-shaped clamping block; 9. a gap; 10. double sleeves; 11. a connecting plate; 12. an outer holding structure; 13. square holes; 14. a hydraulic cylinder; 15. an outer holding clamping jaw; 16. and (5) supporting the clamping jaw internally.
Detailed Description
The construction and principles of the present utility model will be readily apparent to those skilled in the art from the following description taken in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1, the internal-bracing external-embracing type composite clamp mainly comprises a sleeve 4 positioned at the center, and a first cavity 1 is formed inside the sleeve 4. In this first cavity 1, a clamping cylinder 2 and a first wedge-shaped push block 3 connected thereto are provided. When the clamping cylinder 2 is operated, it drives the first wedge-shaped push block 3 up and down along the sleeve 4. Furthermore, a first wedge-shaped clamping block 5 is provided in the first cavity 1, which cooperates with the first wedge-shaped pushing block 3. The matching surfaces of the two wedge-shaped blocks are designed to be inclined surfaces, so that the first wedge-shaped pushing block 3 can drive the first wedge-shaped clamping block 5 to move left and right along the sleeve 4, and clamping and loosening are realized.
The peripheral side of the sleeve 4 is provided with a second cavity 6. In this second cavity 6, a second wedge-shaped push block 7 and a second wedge-shaped clamping block 8 cooperating therewith are provided. The matching surfaces of the two wedge-shaped blocks are designed to be inclined surfaces, so that the up-and-down movement of the second wedge-shaped pushing block 7 can drive the second wedge-shaped clamping block 8 to move left and right, and clamping and loosening are realized.
It is noted that a certain gap is left between the outer wall of the first cavity 1 and the outer wall of the second cavity 6, which gap is used for accommodating the double sleeve 10. The upper portion of sleeve 4 is equipped with connecting plate 11, and the bottom of connecting plate 11 is equipped with outer embracing structure 12. This outer gripping structure 12 is located outside the sleeve 4 and is provided with a second cavity 6 inside. The outer holding structure 12 is a protective cover, and can wrap the hydraulic cylinder 14 and the oil pipe inside to avoid collision.
At the point where the outer wall of the sleeve 4 cooperates with the first wedge-shaped clamping block 5, a square hole 13 is designed so that the first wedge-shaped clamping block 5 can extend out of the sleeve 4 when moving left and right. Likewise, the side of the outer holding structure 12, which is close to the sleeve 4, is also provided with a square hole 13, so that the second wedge-shaped clamping block 8 can extend out of the outer holding structure 12 during the left-right movement.
In order to achieve the clamping and supporting of the double sleeve 10, an outer clamping jaw 15 is provided on the outer side of the second wedge-shaped clamping block 8 for clamping the double sleeve 10 from the outside. At the same time, the outer side of the first wedge-shaped clamping block 5 is also provided with an inner support jaw 16 for supporting the double sleeve 10 from the inner side. In this way, the double sleeve 10 can be stably supported and held from the inside or the outside, and the working efficiency and the stability are greatly improved. In addition, a hydraulic cylinder 14 is further arranged in the second cavity 6 and can drive the second wedge-shaped pushing block 7 to move up and down. The design of the internal-support external-holding type composite clamp fully considers the actual operation requirement, and is practical and efficient.
The above description is only specific to the embodiments of the utility model, but the scope of the utility model is not limited thereto, and any person skilled in the art who is skilled in the art to which the utility model pertains shall apply to the technical solution and the novel concept according to the utility model, and shall all be covered by the scope of the utility model.
Claims (6)
1. An internal stay external holding type composite clamp is characterized by comprising
The clamping cylinder drives the first wedge-shaped pushing block to axially move along the sleeve, the first cavity is internally provided with a first wedge-shaped clamping block matched with the first wedge-shaped pushing block, the matching surface of the first wedge-shaped clamping block and the first wedge-shaped pushing block is an inclined surface, and the first wedge-shaped pushing block drives the first wedge-shaped clamping block to radially move along the sleeve;
The second cavity is arranged at the periphery of the sleeve, a second wedge-shaped pushing block and a second wedge-shaped clamping block matched with the second wedge-shaped pushing block are arranged in the second cavity, the matching surface of the second wedge-shaped clamping block and the second wedge-shaped pushing block is an inclined surface, and the axial movement of the second wedge-shaped pushing block drives the second wedge-shaped clamping block to move radially;
and a gap is reserved between the outer wall of the first cavity and the outer wall of the second cavity and is used for accommodating the double sleeves.
2. The composite fixture of claim 1, wherein the sleeve has a connecting plate on its upper portion, an outer holding structure on its bottom, and a second cavity in the outer holding structure.
3. An internal stay external holding type composite clamp as claimed in claim 1, wherein square holes are formed at the positions of the outer wall of the sleeve matched with the first wedge-shaped clamping blocks, so that the first wedge-shaped clamping blocks extend out of the sleeve when moving radially.
4. The internal stay external holding type composite clamp as claimed in claim 1, wherein a hydraulic cylinder is arranged in the second cavity to drive the second wedge-shaped pushing block to move up and down.
5. An internal stay external holding type composite clamp as claimed in claim 2, wherein a square hole is formed in a side of the external holding structure, which is close to the sleeve, so that the second wedge-shaped clamping block extends out of the external holding structure when moving radially.
6. The internal-bracing external-holding type composite clamp as claimed in claim 1, wherein the outer side of the second wedge-shaped clamping block is provided with an external holding clamping jaw, the external holding double-sleeve is used for holding the double-sleeve from the outer side, the outer side of the first wedge-shaped clamping block is provided with an internal-bracing clamping jaw, and the double-sleeve is supported from the inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323110904.3U CN221421941U (en) | 2023-11-17 | 2023-11-17 | Internal support and external holding type composite clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323110904.3U CN221421941U (en) | 2023-11-17 | 2023-11-17 | Internal support and external holding type composite clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221421941U true CN221421941U (en) | 2024-07-26 |
Family
ID=91979783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323110904.3U Active CN221421941U (en) | 2023-11-17 | 2023-11-17 | Internal support and external holding type composite clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221421941U (en) |
-
2023
- 2023-11-17 CN CN202323110904.3U patent/CN221421941U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |