CN219705041U - Pre-buried hole of rack support column strikes head - Google Patents
Pre-buried hole of rack support column strikes head Download PDFInfo
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- CN219705041U CN219705041U CN202321146047.XU CN202321146047U CN219705041U CN 219705041 U CN219705041 U CN 219705041U CN 202321146047 U CN202321146047 U CN 202321146047U CN 219705041 U CN219705041 U CN 219705041U
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- impact head
- drill rod
- head main
- spacing
- main body
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- 241001391944 Commicarpus scandens Species 0.000 abstract description 5
- 239000002689 soil Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000037237 body shape Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002420 orchard Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model provides a pre-buried hole of rack support column strikes head, relates to the agricultural rack and builds and use the utensil field, is equipped with columnar impact head main part, impact head main part lower extreme is equipped with conical impact point, impact head main part upper end is equipped with the slip joint groove, is equipped with the grafting drill rod that can freely slide from top to bottom in the slip joint groove, and the tip is equipped with spacing arch under the grafting drill rod in the slip joint groove, impact head main part upper end is equipped with the cover and establishes on the grafting drill rod, with spacing protruding complex be annular spacing end cover, the internal diameter of spacing end cover is greater than the diameter of grafting drill rod, is less than spacing bellied diameter. The drill rod has the advantages that the drill rod is not easy to break with the impact head main body, the service life is long, and earth on the surface of the earth is not easy to fall into the embedded holes of the support columns after the impact head main body is pulled out of the ground.
Description
Technical Field
The utility model relates to the field of appliances for building agricultural sheds, in particular to a pre-buried hole impact head of a shed support column.
Background
The protection frame for constructing a thermal insulation greenhouse or an orchard for planting is known, the support columns are required to be fixed and erected on the land, and then works such as erecting a greenhouse cover, constructing a protection net, connecting stable ropes and the like are performed on the support columns.
Conventional methods for fixing and erecting support columns on the ground generally involve manually digging a pit in the ground, erecting the support columns in the pit, filling the pit with soil, and tamping. The method has the advantages of high labor intensity and low efficiency, and the pit dug is larger in diameter than the support column, so that the support column is poor in stability and easy to incline after filled soil is tamped.
With the development of agricultural modernization, in order to overcome the above-mentioned difficulty, technicians use an excavator or loader equipped with a (hydraulic) breaking hammer, install an impact head for punching on the breaking hammer, squeeze and punch on the land, and form pre-buried holes for fixing support columns. The embedded holes are formed by extrusion, the diameter difference between the hole diameter and the diameter of the support column is very small, and the stability is greatly improved after the support column is put into the embedded holes to be filled with soil and tamped. The main body shape of the impact head installed on the existing breaking hammer is the same as that of the supporting column, and the impact head comprises a cylinder shape, a quadrangular shape or a polygonal prism shape, and the radial size of the impact head is slightly larger than that of the supporting column; the lower end of the impact head is provided with a conical impact tip, the center of the upper end of the impact head is provided with an inserting drill rod fixedly connected with the breaking hammer, and the upper end of the inserting drill rod is provided with a connecting groove matched with the breaking hammer. When the impact head is used, the impact head is connected with the breaking hammer through the upper end of the plug-in drill rod, the breaking hammer presses the impact head main body into the ground through the plug-in drill rod, and then the plug-in drill rod is pulled upwards to pull out the impact head from the ground, so that the pre-buried hole of the support column is formed. The existing plug-in drill rod of the impact head is rigidly connected (welded or integrally manufactured) with the upper end of the impact head, in the use process, the impact direction of the breaking hammer on the plug-in drill rod and the direction of the impact head main body are in error, the direction of the plug-in drill rod and the direction of the impact head main body are also in error when being lifted upwards, bending force is generated at the joint of the plug-in drill rod and the impact head main body, the impact head is used for a long time, metal fatigue and service life at the stressed part are shortened, and the joint of the plug-in drill rod and the impact head main body is easy to break; in the process that the impact head main body is pulled out of the ground, soil loosened on the ground surface is easy to fall into the pre-buried holes of the support columns, and normal support column implantation operation is affected.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides the impact head with the built-in holes of the canopy frame support columns, wherein the built-in holes of the canopy frame support columns are not easy to break between the plug drill rod and the impact head main body and have long service life, and earth on the surface of the impact head main body is not easy to fall into the built-in holes of the support columns after the impact head main body is pulled out of the ground.
The utility model solves the defects of the prior art, adopts the following technical proposal:
the utility model provides a pre-buried hole of rack support column strikes head, is equipped with columnar impact head main part, impact head main part lower extreme is equipped with conical impact point, its characterized in that, impact head main part upper end is equipped with the slip joint groove, is equipped with the grafting drill rod that can freely slide from top to bottom in the slip joint groove, and the tip is equipped with spacing arch under the grafting drill rod in the slip joint groove, impact head main part upper end is equipped with the cover and establishes on the grafting drill rod, with spacing protruding complex be annular spacing end cover, the internal diameter of spacing end cover is greater than the diameter of grafting drill rod, is less than spacing bellied diameter.
The limiting protrusion is in a circular ring shape, and is in clearance fit with the sliding connecting groove.
The limiting protrusion is in a round table shape with a large lower part and a small upper part, and a conical hole matched with the limiting protrusion is formed at the opposite position of the lower side surface of the limiting end cover and the limiting protrusion. When the plug-in drill rod is lifted upwards, the outer conical surface of the circular truncated cone-shaped limiting protrusion contacts with the conical hole to be matched with the conical hole for limiting, so that the contact area is large, and the deformation caused by the fact that the local stress of the limiting protrusion is large is avoided.
The outer side of the upper end part of the impact head main body is provided with a round table-shaped outer expansion sleeve with a small bottom and a large top. When the drill rod is used, the outer side face of the round table-shaped outer expansion sleeve can extrude soil at the upper end of the pre-buried hole of the support column to the periphery to form a conical hole, the compacted soil is not easy to fall down when the inserted drill rod is lifted upwards, and the conical hole is more convenient for the support column to be inserted into the pre-buried hole, so that the working efficiency is improved.
The round table type outer expansion sleeve comprises four trapezoid retaining plates with the lower part being small and the upper part being large, the four trapezoid retaining plates obliquely surround the periphery of the outer side of the upper end part of the impact head main body, and supporting connecting ribs are arranged between the trapezoid retaining plates and the upper end part of the impact head main body. Compared with the round table-shaped outer expansion sleeve with other structures, the structure is convenient to manufacture and process, and cost is saved.
When the impact head is used, the upper end of the inserted drill rod is connected with the breaking hammer, the breaking hammer hammers the inserted drill rod downwards, the lower end of the inserted drill rod hammers the bottom surface of the sliding connecting groove at the upper end of the impact head main body, and the impact head main body is impacted and pressed into the ground; and lifting the breaking hammer upwards, lifting the inserting drill rod by the breaking hammer to move upwards, and clamping and matching the limiting bulge at the outer side of the lower end part of the inserting drill rod with the limiting end cover to pull the impact head main body out of the bottom surface. When the breaking hammer is used for hammering the direction of the inserted drill rod downwards or lifting the direction of the inserted drill rod upwards and the direction of the impact head main body are in error, the inserted drill rod is in clearance fit with the limiting end cover, the limiting bulge is in clearance fit with the sliding connecting groove, when smaller angle errors exist, the clearance can be compensated, when the angle of the error is larger, the contact part of the inserted drill rod and the limiting end cover is stressed, the contact part of the limiting bulge and the side wall of the sliding connecting groove is stressed, the stress area is large, the local stress is small, the stretching bending phenomenon cannot occur, the inserted drill rod is not easy to break, and the service life is long.
Drawings
Fig. 1 is a schematic structural view of the present utility model, and fig. 2 is a schematic structural view of fig. 1.
Fig. 3 is a schematic view of still another structure of the present utility model, and fig. 4 is a schematic view of a perspective structure of fig. 3.
Detailed Description
Example 1
As shown in fig. 1 and fig. 2, the impact head of the pre-buried hole of the canopy frame support column is provided with a quadrangular prism-shaped impact head main body 8, the lower end of the impact head main body 8 is provided with a quadrangular prism-shaped impact tip 9, the upper end of the impact head main body 8 is provided with a sliding connection groove 4 with an upper end open, a plug drill rod 2 capable of sliding freely up and down is arranged in the sliding connection groove 4, the upper end of the plug drill rod 2 is provided with a connecting groove 1 matched with a breaking hammer, and the matching structure between the connecting groove 1 and the breaking hammer is the same as the matching structure between the existing breaking hammer and the connecting groove of the drill rod, and is not repeated. The lower end part of the inserted drill rod 2 in the sliding connecting groove 4 is provided with a limiting bulge 5, the limiting bulge is 5-circular, and the limiting bulge 5 is in clearance fit with the sliding connecting groove. The upper end cover of the impact head main body 9 is provided with an annular limiting end cover 3 which is sleeved on the plug drill rod 2 and matched with the limiting bulge 5, and the limiting end cover is fixedly connected with the impact head main body through bolts as can be seen from the figure. The inner diameter of the limiting end cover 3 is larger than the diameter of the inserting drill rod 2 and smaller than the diameter of the limiting bulge 5; the plug drill rod 2 is in clearance fit with the limiting end cover. The outer side of the upper end part of the impact head main body is provided with a round table-shaped outer expansion sleeve with a small bottom and a large top; the round table-shaped outer expansion sleeve comprises four trapezoidal retaining plates 7 with small lower parts and large upper parts, the four trapezoidal retaining plates 7 obliquely surround the outer sides of the upper end parts of the impact head main body, and supporting connecting ribs 6 are arranged between the trapezoidal retaining plates 7 and the upper end parts of the impact head main body 8. Compared with the round table-shaped outer expansion sleeve with other structures, the structure is convenient to manufacture and process, and cost is saved. When the drill rod is used, the outer side face of the round table-shaped outer expansion sleeve can extrude soil at the upper end of the pre-buried hole of the support column to the periphery to form a conical hole, the compacted soil is not easy to fall down when the inserted drill rod is lifted upwards, and the conical hole is more convenient for the support column to be inserted into the pre-buried hole, so that the working efficiency is improved.
Example 2
The impact head with pre-buried holes of the canopy frame support column shown in fig. 3 and 4 is different from the embodiment 1 in that the impact head main body 8 is cylindrical and the impact tip 9 is conical; the limiting bulge 5 is in a shape of a round table with a large lower part and a small upper part, and a conical hole matched with the limiting bulge 5 is formed at the opposite position of the lower side surface of the limiting end cover 3 and the limiting bulge 5. When the plug-in drill rod is lifted upwards, the outer conical surface of the circular truncated cone-shaped limiting protrusion contacts with the conical hole to be matched with the conical hole for limiting, so that the contact area is large, and the deformation caused by the fact that the local stress of the limiting protrusion is large is avoided. The other structures are the same as those of embodiment 1, and will not be described again.
When the impact head is used, the upper end of the inserted drill rod is connected with the breaking hammer, the breaking hammer hammers the inserted drill rod downwards, the lower end of the inserted drill rod hammers the bottom surface of the sliding connecting groove at the upper end of the impact head main body, and the impact head main body is impacted and pressed into the ground; and lifting the breaking hammer upwards, lifting the inserting drill rod by the breaking hammer to move upwards, and clamping and matching the limiting bulge at the outer side of the lower end part of the inserting drill rod with the limiting end cover to pull the impact head main body out of the bottom surface. When the breaking hammer is used for hammering the direction of the inserted drill rod downwards or lifting the direction of the inserted drill rod upwards and the direction of the impact head main body are in error, the inserted drill rod is in clearance fit with the limiting end cover, the limiting bulge is in clearance fit with the sliding connecting groove, when smaller angle errors exist, the clearance can be compensated, when the angle of the error is larger, the contact part of the inserted drill rod and the limiting end cover is stressed, the contact part of the limiting bulge and the side wall of the sliding connecting groove is stressed, the stress area is large, the local stress is small, the stretching bending phenomenon cannot occur, the inserted drill rod is not easy to break, and the service life is long.
Claims (5)
1. The utility model provides a pre-buried hole of rack support column strikes head, is equipped with columnar impact head main part, impact head main part lower extreme is equipped with conical impact point, its characterized in that, impact head main part upper end is equipped with the slip joint groove, is equipped with the grafting drill rod that can freely slide from top to bottom in the slip joint groove, and the tip is equipped with spacing arch under the grafting drill rod in the slip joint groove, impact head main part upper end is equipped with the cover and establishes on the grafting drill rod, with spacing protruding complex be annular spacing end cover, the internal diameter of spacing end cover is greater than the diameter of grafting drill rod, is less than spacing bellied diameter.
2. The impact head of claim 1, wherein the limiting protrusion is in a shape of a circular ring, and the limiting protrusion is in clearance fit with the sliding connection groove.
3. The impact head of the pre-buried hole of the canopy frame support column according to claim 1, wherein the limiting protrusion is in a shape of a round table with a large lower part and a small upper part, and a conical hole matched with the limiting protrusion is arranged at the opposite part of the lower side surface of the limiting end cover and the limiting protrusion.
4. A shed frame support column pre-buried hole impact head according to claim 1, 2 or 3, wherein a round table-shaped outer expansion sleeve with a smaller lower part and a larger upper part is arranged on the outer side of the upper end part of the impact head main body.
5. The impact head of claim 4, wherein the circular-table-shaped outer expansion sleeve comprises four trapezoidal retaining plates with small lower parts and large upper parts, the four trapezoidal retaining plates obliquely surround the periphery of the outer side of the upper end part of the impact head main body, and supporting connecting ribs are arranged between the trapezoidal retaining plates and the upper end part of the impact head main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321146047.XU CN219705041U (en) | 2023-05-12 | 2023-05-12 | Pre-buried hole of rack support column strikes head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321146047.XU CN219705041U (en) | 2023-05-12 | 2023-05-12 | Pre-buried hole of rack support column strikes head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219705041U true CN219705041U (en) | 2023-09-19 |
Family
ID=87984574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321146047.XU Active CN219705041U (en) | 2023-05-12 | 2023-05-12 | Pre-buried hole of rack support column strikes head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219705041U (en) |
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2023
- 2023-05-12 CN CN202321146047.XU patent/CN219705041U/en active Active
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