An insertable pole foundation

Abstract

This invention relates to an insert-type pole foundation, belonging to the field of power transmission line engineering technology. It includes a pole body and concrete columns embedded in the soil. The concrete columns consist of a lower support column and an upper support column integrally connected from bottom to top. Each concrete column also includes a reinforcing cage housed within the lower and upper support columns. The top of the upper support column is flush with the ground. The bottom of the pole body is fixedly inserted into the upper support column, and the top of the pole body extends upward beyond the upper support column. A pile top clamp is fitted onto the pole body above ground level, and several connecting rods are fixedly connected between the pile top clamp and the top of the reinforcing cage. This invention effectively prevents pole settlement and tilting, improving the stability and safety of the pole.

Description

Technical Field

[0001] This invention relates to an insertable pole foundation, belonging to the field of power transmission line engineering technology. Background Technology

[0002] Overhead power distribution lines are widely used in my country's power system, thus requiring the assurance of both the system's operational safety and the safety of the surrounding environment. Currently, poles are typically erected using a pit-backfilling method, with the pits manually excavated and the foundations filled with undisturbed soil. During construction, the pole foundations are secured to reduce the risk of pole tipping due to external forces. However, if the soil's bearing capacity is insufficient, poles may still tilt and settle, affecting power transmission and, in severe cases, impacting residential electricity supply.

[0003] A prefabricated assembled pole foundation disclosed in Chinese utility model patent CN210946867U includes a pole, a prefabricated pole foundation, and double-ended bolts. The prefabricated pole foundation is made of steel bars and concrete, and has two sets of bolt holes in the transverse direction. The inner side of the foundation has an arc surface. The pole is clamped between two prefabricated pole foundations and connected by double-ended bolts passing through the bolt holes. The foundation is then tightened with washers and nuts.

[0004] The above-mentioned reference example discloses a multi-layered pole foundation. However, after being buried in the soil, the pole may still tilt due to land subsidence, resulting in poor stability. Furthermore, since the pole foundations are spliced ​​together, the connection stability is poor, and it is easy to lose its supporting function. Therefore, improvements are urgently needed. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention designs an insertable pole foundation, which can effectively prevent pole settlement and tilting, and improve the stability and safety of the pole.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An insertable pole foundation includes a pole body and a concrete column embedded in the soil. The concrete column includes a lower support column and an upper support column integrally connected from bottom to top. The concrete column also includes a steel cage disposed inside the lower support column and the upper support column.

[0008] The top of the upper support column is flush with the ground, the bottom of the pole body is fixedly inserted into the upper support column, and the top of the pole body extends upward after extending out of the upper support column.

[0009] The pole body is located above the ground and is fitted with a pile top clamp. Several connecting rods are fixedly connected between the pile top clamp and the top of the steel cage.

[0010] Furthermore, the steel cage includes several vertically arranged vertical steel bars and several horizontally spaced circular steel bars from top to bottom. The vertical steel bars are arranged in a circular array, and each circular steel bar is fixedly connected to each vertical steel bar.

[0011] Furthermore, the pile top clamp is fitted and fixed to the ground.

[0012] Furthermore, the pole body is sleeved on the middle part of the upper support column.

[0013] Furthermore, a worm gear is rotatably sleeved on the pole body located at the top of the ground, and a drive device is fixedly installed at the top of the pile top clamp, and the drive device is connected to a worm for driving the worm gear to rotate.

[0014] Several linkage rods are uniformly fixedly connected to the top of the worm gear along the circumference. The top of each linkage rod is fixedly connected to a rotating collar. The rotating collar is rotatably sleeved on the outside of the pole body, and a spraying mechanism for spraying herbicide around the pole body is installed on the outside of the rotating collar.

[0015] Furthermore, the spraying mechanism includes an extension rod fixed to the outside of the rotating collar, a storage tank for storing herbicide is fixedly installed at the top of the extension rod, and a nozzle for spraying herbicide is installed at the bottom of the extension rod, with the storage tank and the nozzle connected by a hose.

[0016] Furthermore, the bottom end of the extension rod is fixedly connected to a slide rail arranged in the same direction as the extension rod, a sliding rod is slidably installed on the slide rail, the nozzle is fixedly installed at the bottom end of the sliding rod, and the free end of the extension rod is provided with a reciprocating drive mechanism for driving the sliding rod to reciprocate on the slide rail.

[0017] Furthermore, the reciprocating drive mechanism includes a swing rod and a drive assembly. One end of the swing rod is fixedly sleeved with a pin, which is driven to rotate by the drive assembly. The other end of the swing rod is fixedly sleeved with a retaining pin.

[0018] A limiting rod is fixedly installed at the bottom of the sliding rod on the side of the nozzle away from the pole body. The limiting rod is perpendicular to the sliding rod and has a limiting groove along its length. The retaining shaft is slidably engaged in the limiting groove.

[0019] Furthermore, the drive assembly includes a fixed gear ring and a gear meshing with the fixed gear ring and disposed inside the fixed gear ring. The gear is fixedly sleeved on a pin shaft, and the top end of the pin shaft is rotatably connected to the bottom of the free end of the extension rod. The swing rod is spaced apart at the bottom end of the gear.

[0020] The top of the rotating collar is provided with a fixing collar that is fixedly sleeved on the pole body. Several bent rods are evenly fixed along the circumference on the outer side of the fixing collar. The free ends of the bent rods are bent downwards, and the free ends of each bent rod are fixedly connected to the top of the toothed ring.

[0021] Furthermore, the linkage rod is a telescopic rod.

[0022] Compared with the prior art, the present invention has the following features and beneficial effects:

[0023] 1. This invention, by setting a pile top clamp, allows the pole to pass through the pile top clamp before installation, effectively ensuring centering and preventing tilting. Furthermore, by fixing the pile top clamp to the reinforcing cage with a connecting rod, the stability of the pile top clamp is effectively increased, further preventing pole tilting and contributing to pole stability. Simultaneously, the upper support column further centers the pole, ensuring its verticality. The upper support column, tightly fitted to the pole and fully integrated with the soil, effectively prevents pole settlement. Adding a lower support column on top of the upper support column increases the overall embedment depth of the concrete column, further improving its stability and extending the pole's service life. This enhances the pole's stability and safety, effectively solving the problem of pole settlement and tilting caused by insufficient soil bearing capacity, and is beneficial for the normal operation of transmission lines.

[0024] 2. This invention, through the setting of a spraying mechanism, utilizes a driving worm gear to rotate a rotating collar. During the rotation of the collar, the extension rod rotates around the pole in a circular motion. This causes the gear at the free end of the extension rod to rotate under the meshing action of a fixed gear ring. The gear synchronously drives the pin to rotate, which in turn drives the swing rod to rotate around the pin. During the rotation of the swing rod, the free end pushes the limiting rod through a retaining pin locked in a limiting groove. Therefore, as the swing rod continuously rotates, the retaining pin continuously drives the sliding rod to reciprocate on the slide rail, thus causing the nozzle to reciprocate synchronously while the extension rod rotates around the pole in a circular motion. Under these conditions, the nozzles reciprocate along the slide rails, allowing them to spray herbicide not only around the pole but also expand their spray range. This effectively clears weeds within a certain area around the pole, eliminates fire hazards around the pole's base, prevents small animals from nesting at the pole's base, keeps the pole clean and tidy, prevents pole corrosion, and reduces the workload of weeders, who only need to add herbicide periodically. Maintenance personnel can also easily see the area around the pole, making it easier to approach for inspections and necessary maintenance. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the installation structure of the present invention;

[0026] Figure 2 yes Figure 1 Sectional view in the AA direction;

[0027] Figure 3 This is a schematic diagram of the main structure of the spraying mechanism of the present invention;

[0028] Figure 4 This is a three-dimensional structural schematic diagram of the spraying mechanism of the present invention from a first-view perspective;

[0029] Figure 5 This is a three-dimensional structural schematic diagram of the spraying mechanism of the present invention from a second perspective;

[0030] Figure 6 yes Figure 4 A magnified schematic diagram of the structure at point B;

[0031] Figure 7 yes Figure 5 A magnified schematic diagram of the structure at point C.

[0032] The attached diagrams are labeled as follows: 1. Pole body; 2. Reinforcing cage; 3. Lower support column; 4. Pile top clamp; 5. Connecting rod; 6. Upper support column; 7. Drive device; 71. Worm gear; 8. Worm wheel; 9. Linkage rod; 10. Fixed gear ring; 11. Bending rod; 111. Fixed collar; 12. Rotating collar; 13. Spraying mechanism; 14. Liquid storage tank; 15. Extension rod; 16. Gear; 17. Pin; 18. Swing rod; 19. Locking shaft; 20. Limiting rod; 201. Limiting groove; 21. Sliding rod; 22. Slide rail; 23. Nozzle. Detailed Implementation

[0033] The present invention will now be described in more detail with reference to the embodiments.

[0034] Example 1

[0035] Please see Figure 1 and Figure 2 The insertable pole foundation of this embodiment includes a pole body 1 and a concrete column embedded in the soil. The concrete column includes a lower support column 3 and an upper support column 6 integrally connected from bottom to top. During construction, the lower support column 3 must be poured first and the upper support column 6 must be poured after the lower support column 3 has solidified.

[0036] The concrete column also includes a steel cage 2 installed inside the lower support column 3 and the upper support column 6. The steel cage 2 is required to be evenly distributed in the excavated foundation pit and meet the bearing capacity requirements.

[0037] The top of the upper support column 6 is flush with the ground, and the bottom of the pole body 1 is fixedly inserted into the upper support column 6. The top of the pole body 1 extends upward after extending out of the upper support column 6.

[0038] The pole body 1 is located above the ground and is fitted with a pile top clamp 4. Eight connecting rods 5 are fixedly connected between the pile top clamp 4 and the top of the steel cage 2. The eight connecting rods 5 are evenly arranged in a circumferential array.

[0039] Furthermore, the steel cage 2 includes several vertically arranged vertical steel bars and several horizontally spaced circular steel bars from top to bottom. The vertical steel bars are arranged in a ring array, and each circular steel bar is fixedly connected to each vertical steel bar.

[0040] Furthermore, the pile top clamp 4 is attached and fixed to the ground.

[0041] Furthermore, the pole body 1 is fitted onto the middle part of the upper support column 6 to ensure that the upper support column 6 is subjected to uniform force.

[0042] Specifically, before construction, a site survey is first conducted to determine the location of the foundation pit. The required height H is then excavated using a spiral drilling rig. A reinforcing cage 2 is then placed into the excavated foundation pit. Concrete is poured into the pit to a certain height H1 and cured. After curing, according to the planned height, a pile top clamp 4 is installed at a height H2 on the pole body 1. The pole body 1 is then placed in the pit with a burial depth of H2, so that the pile top clamp 4 is located on the ground surface. A connecting rod 5 and a fixing clip are used to fix the pile top clamp 4 and the reinforcing cage 2. The gaps are then filled with concrete up to the ground surface and cured until solidified.

[0043] Example 2

[0044] Please see Figures 3 to 7 The pole body 1 is rotatably sleeved on the pole body at the top of the ground, and the top of the pile clamp 4 is fixedly installed with a drive device 7. The drive device 7 is connected to a worm 71 for driving the worm wheel 8 to rotate.

[0045] Several linkage rods 9 are evenly fixedly connected to the top of the worm gear 8 along the circumference. The top of each linkage rod 9 is fixedly connected to a rotating collar 12. The rotating collar 12 is rotatably sleeved on the outside of the pole body 1, and a spraying mechanism 13 for spraying herbicide around the pole body 1 is installed on the outside of the rotating collar 12.

[0046] Furthermore, the spraying mechanism 13 includes an extension rod 15 fixed to the outside of the rotating collar 12. A storage tank 14 for storing herbicides is fixedly installed at the top of the extension rod 15, and a nozzle 23 for spraying herbicides is installed at the bottom of the extension rod 15. The storage tank 14 and the nozzle 23 are connected by a hose.

[0047] Furthermore, the bottom end of the extension rod 15 is fixedly connected to a slide rail 22 arranged in the same direction as the extension rod 15, a slide rod 21 is slidably installed on the slide rail 22, the nozzle 23 is fixedly installed on the bottom end of the slide rod 21, and the free end of the extension rod 15 is provided with a reciprocating drive mechanism for driving the slide rod 21 to reciprocate on the slide rail 22.

[0048] Furthermore, the reciprocating drive mechanism includes a swing rod 18 and a drive assembly. One end of the swing rod 18 is fixedly sleeved with a pin 17, which is driven to rotate by the drive assembly. The other end of the swing rod 18 is fixedly sleeved with a retaining pin 19.

[0049] A limiting rod 20 is fixedly installed at the bottom of the sliding rod 21 on the side of the nozzle 23 away from the pole body 1. The limiting rod 20 is set perpendicular to the sliding rod 21 and a limiting groove 201 is opened along the length direction of the limiting rod 20. The locking shaft 19 is slidably locked in the limiting groove 201.

[0050] Furthermore, the drive assembly includes a fixed gear ring 10 and a gear 16 that meshes with the fixed gear ring 10 and is disposed inside the fixed gear ring 10. The gear 16 is fixedly sleeved on the pin 17, and the top end of the pin 17 is rotatably connected to the bottom of the free end of the extension rod 15. The swing rod 18 is spaced apart at the bottom end of the gear 16.

[0051] The top of the rotating collar 12 is provided with a fixing collar 111 that is fixedly sleeved on the pole body 1. Several bent rods 11 are evenly fixed on the outer side of the fixing collar 111 along the circumference. The free ends of the bent rods 11 are bent downwards, and the top of the toothed ring 10 is fixedly connected to the free ends of each bent rod 11.

[0052] Furthermore, the linkage rod 9 is a telescopic rod that can be extended and adjusted to adjust the distance between the nozzle 23 and the ground, so that the spraying position of the nozzle 23 can be flexibly adjusted.

[0053] As described above, the worm gear 8 drives the rotating collar 12, which in turn drives the extension rod 15 to rotate around the pole. This causes the gear 16 at the free end of the extension rod 15 to rotate under the meshing action of the fixed gear ring 10. The gear 16 synchronously drives the pin 17 to rotate, and the rotation of the pin 17 in turn drives the swing rod 18 to rotate around the pin 17. During the rotation, the free end of the swing rod 18 is locked in the limiting groove. The locking shaft 19 pushes the limiting rod 20 to move. Therefore, during the continuous rotation of the swing rod 18, the locking shaft 19 continuously drives the sliding rod 21 to reciprocate on the slide rail 22, thereby causing the nozzle 23 to reciprocate synchronously. Under the premise that the extension rod 15 revolves around the pole, the nozzle 23 also reciprocates along the slide rail 22. Thus, the nozzle 23 can not only spray herbicide around the pole, but also expand the spraying range of the nozzle 23 by reciprocating along the slide rail 22.

[0054] The working principle of this invention is as follows: By setting a pile top clamp, the pole can pass through the pile top clamp before installation, thus effectively centering the pole and preventing tilting. Furthermore, by fixing the pile top clamp to the reinforcing cage with a connecting rod, the stability of the pile top clamp is effectively increased, further preventing pole tilting and ensuring pole stability. Simultaneously, the upper support column further centers the pole, ensuring its verticality. The upper support column tightly secures the pole and ensures full integration with the soil, effectively preventing pole settlement. Adding a lower support column on top of the upper support column increases the embedment depth of the entire concrete column, further improving its stability and extending the pole's service life. This enhances the pole's stability and safety, effectively solving the problem of pole settlement and tilting caused by insufficient soil bearing capacity, and is beneficial for the normal operation of transmission lines.

[0055] By setting up a spraying mechanism, a worm gear can be used to drive a rotating collar. During the rotation of the collar, the extension rod will rotate around the pole in a circular motion. This causes the gear at the free end of the extension rod to rotate under the meshing action of the fixed gear ring. The gear synchronously drives the pin to rotate, which in turn drives the swing rod to rotate around the pin. During rotation, the free end of the swing rod pushes the limit rod through a retaining pin locked in a limiting groove. Therefore, as the swing rod rotates continuously, the retaining pin continuously drives the sliding rod to reciprocate on the slide rail, thus causing the nozzle to reciprocate synchronously. This is all based on the premise that the extension rod rotates around the pole in a circular motion. The nozzle then reciprocates along the slide rail, allowing it to spray herbicide around the pole and expand its spray range. This effectively clears weeds within a certain area around the pole, eliminates fire hazards around the pole's base, prevents small animals from nesting there, keeps the pole base clean and tidy, prevents corrosion, and reduces the workload for weeders (who only need to add herbicide periodically). Maintenance personnel can also easily see the area around the pole, making it easier to approach for inspections and necessary repairs.

[0056] In the description of this invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0057] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. An insertable pole foundation, comprising a pole body (1), characterized in that: It also includes concrete columns that are embedded in the soil. The concrete columns include a lower support column (3) and an upper support column (6) that are integrally connected from bottom to top. The concrete columns also include a steel cage (2) installed inside the lower support column (3) and the upper support column (6). The top of the upper support column (6) is flush with the ground, the bottom of the pole body (1) is fixedly inserted into the upper support column (6), and the top of the pole body (1) extends upward after extending out of the upper support column (6); The pole body (1) is fitted with a pile top clamp (4) on the pole body above the ground, and a number of connecting rods (5) are fixedly connected between the pile top clamp (4) and the top of the steel cage (2). The pole body (1) is rotatably fitted with a worm gear (8) on the pole body at the top of the ground. The top of the pile top clamp (4) is fixedly installed with a drive device (7). The drive device (7) is connected to a worm (71) for driving the worm gear (8) to rotate. Several linkage rods (9) are evenly fixedly connected to the top of the worm gear (8) along the circumference. The top of each linkage rod (9) is fixedly connected to a rotating collar (12). The rotating collar (12) is rotatably fitted outside the pole body (1). A spraying mechanism (13) for spraying herbicide around the pole body (1) is installed on the outside of the rotating collar (12). The spraying mechanism (13) includes an extension rod (15) fixed to the outside of the rotating collar (12). A storage tank (14) for storing herbicides is fixedly installed at the top of the extension rod (15). A nozzle (23) for spraying herbicides is installed at the bottom of the extension rod (15). The storage tank (14) and the nozzle (23) are connected by a hose. The bottom end of the extension rod (15) is fixedly connected to a slide rail (22) arranged in the same direction as the extension rod (15). A sliding rod (21) is slidably installed on the slide rail (22). The nozzle (23) is fixedly installed on the bottom end of the sliding rod (21). The free end of the extension rod (15) is provided with a reciprocating drive mechanism for driving the sliding rod (21) to reciprocate on the slide rail (22).

2. The insert-type pole foundation according to claim 1, characterized in that: The steel cage (2) includes several vertically arranged vertical steel bars and several circular steel bars arranged horizontally at intervals from top to bottom. The vertical steel bars are arranged in a ring array, and each circular steel bar is fixedly connected to each vertical steel bar.

3. The insert-type pole foundation according to claim 1, characterized in that: The pile top clamp (4) is attached and fixed to the ground.

4. The insert-type pole foundation according to claim 1, characterized in that: The pole body (1) is fitted onto the middle part of the upper support column (6).

5. An insert-type pole foundation according to claim 1, characterized in that: The reciprocating drive mechanism includes a swing rod (18) and a drive assembly. One end of the swing rod (18) is fixedly sleeved with a pin (17), and the pin (17) is driven to rotate by the drive assembly. The other end of the swing rod (18) is fixedly sleeved with a retaining pin (19). The nozzle (23) is provided with a limiting rod (20) fixedly installed at the bottom of the sliding rod (21) on the side away from the pole body (1). The limiting rod (20) is set perpendicular to the sliding rod (21) and the limiting rod (20) has a limiting groove (201) along the length direction. The locking shaft (19) is slidably locked in the limiting groove (201).

6. An insert-type pole foundation according to claim 5, characterized in that: The drive assembly includes a fixed gear ring (10) and a gear (16) meshing with the fixed gear ring (10) and disposed inside the fixed gear ring (10). The gear (16) is fixedly sleeved on the pin (17), and the top end of the pin (17) is rotatably connected to the bottom of the free end of the extension rod (15). The swing rod (18) is spaced apart at the bottom end of the gear (16). The top of the rotating collar (12) is provided with a fixed collar (111) that is fixedly sleeved on the pole body (1). A number of bent rods (11) are evenly fixed on the outer side of the fixed collar (111) along the circumferential direction. The free ends of the bent rods (11) are bent downwards, and the free ends of each bent rod (11) are fixedly connected to the top of the toothed ring (10).

7. The insert-type pole foundation according to claim 1, characterized in that: The linkage rod (9) is a telescopic rod.

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