A kind of auxiliary device for electric pole erection

Abstract

The present invention discloses an auxiliary device for erecting a utility pole, which relates to the technical field of erecting a utility pole, and comprises an L-shaped track, which comprises a connected horizontal section and a vertical section, wherein the horizontal section is laid on the ground, the vertical section is tightly attached to the inner wall of the utility pole foundation pit, and a fixed pile is fixedly installed at the end of the vertical section; a pulley, which is movably arranged on the L-shaped track; a clamping assembly, which is rotatably connected to the pulley and is used to clamp the bottom of the utility pole; a limit rod, which is fixedly connected to the bottom of the vertical section, and when the pulley moves to the bottom of the vertical section, the limit rod drives the clamping assembly to release the clamping of the utility pole. The auxiliary device for erecting a utility pole provided by the present invention can assist in stabilizing the utility pole when the upper and middle part of the utility pole is lifted by a tripod erecting machine, reduce the resistance generated by the friction between the bottom of the utility pole and the ground, and reduce the difficulty of lifting and the risk of tilting of the tripod erecting machine.

Description

Technical Field

[0001] The invention relates to the technical field of electric pole erection, in particular to an electric pole erection auxiliary device. Background Art

[0002] The erection of electric poles is the most common type of construction in the power industry. At present, the erection of electric poles usually adopts two methods: manual erection and crane and manual erection. The manual method requires a lot of manpower, is labor-intensive and time-consuming, and has a low safety factor; the use of large machinery to assist in the erection is easily restricted by the terrain and construction site. On some complex and uneven ground, large machinery cannot enter. With the popularization of power grid laying, the requirements for construction safety and reliability are getting higher and higher, so the pole erection is required to be both safe and fast.

[0003] For example, the announcement number CN201614774U discloses a "concrete pole erecting device", which includes a tripod holding pole and a power mechanism arranged on the tripod holding pole, wherein the power mechanism is connected to a fixed pulley arranged at the top of the tripod holding pole through a steel wire rope, and the steel wire rope is connected to a movable pulley arranged on the concrete pole through a fixed pulley. The main holding pole of the "tripod" is modified to adopt a tripod erecting machine, which does not need to be driven into the construction site by a tractor, greatly reducing the destroyed area, not only saving a large part of the funds, but also speeding up the construction speed. It greatly improves work efficiency and greatly reduces work intensity; in addition, it adopts forward and reverse switch control to ensure safety. It has a simple structure, saves materials, greatly saves time, and reduces construction costs.

[0004] The prior art such as the above-mentioned patent has a simple pole erecting device structure and does not require large machinery to enter the construction site, which not only improves work efficiency but also reduces work intensity. However, the tripod pole erecting machine used in the device uses a steel wire rope to lift the middle and upper part of the pole, and the bottom of the pole slides on the ground. On the one hand, the friction resistance between the bottom of the pole and the ground is relatively large, which increases the difficulty of lifting and the risk of the tripod tilting. On the other hand, the bottom of the pole will bring the fill at the mouth of the foundation pit into the foundation pit, and the pole will shake at the mouth of the foundation pit when it is lifted completely off the ground. It is often difficult to align with the center of the foundation pit, and construction workers are required to assist in stabilizing the pole. Because it is a hoisting operation, there are certain safety hazards, which may lead to accidents. The construction safety needs to be improved. Summary of the invention

[0005] The purpose of the present invention is to provide a utility pole erection auxiliary device to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an auxiliary device for erecting a utility pole, comprising: an L-shaped track, which includes a connected horizontal section and a vertical section, the horizontal section is laid on the ground, and the vertical section is inserted into a foundation pit of the utility pole; a pulley, which is movably arranged on the L-shaped track; a clamping assembly, which is rotatably connected to the pulley and is used to clamp the bottom of the utility pole; a limit rod, which is fixedly connected to the bottom of the vertical section, and when the pulley moves to the bottom of the vertical section, the limit rod drives the clamping assembly to release the clamping of the utility pole.

[0007] Furthermore, the horizontal section is provided with a plurality of ground nails, and the ends of the vertical sections are fixedly installed with fixed piles.

[0008] Furthermore, the vertical section is closely attached to the inner wall of the electric pole foundation pit.

[0009] Furthermore, the clamping assembly includes a base plate, two oppositely arranged arc-shaped jaws rotatably connected to the base plate, and a locking member for adjusting the degree of opening and closing of the two arc-shaped jaws. The base plate is rotatably connected to the pulley through a rotating shaft. A gear is fixedly connected to the rotating shaft of the two arc-shaped jaws respectively, and the two gears are meshed. A first elastic member is arranged between the handles of the two arc-shaped jaws. The process of the first elastic member restoring its deformation drives the two arc-shaped jaws to rotate and separate.

[0010] Furthermore, the first elastic member includes a first compression spring, both ends of which are respectively connected to the handle of a curved clamping jaw.

[0011] Furthermore, the locking member includes an adjusting rod, a locking rod and a second elastic member. A plurality of locking holes are provided on the adjusting rod. The adjusting rod is slidably connected to the handle of one of the arc-shaped clamping jaws through a sliding rod, and the locking rod is fixedly connected to the handle of the other arc-shaped clamping jaw. When the locking rod is aligned with any locking hole, the elastic force of the second elastic member acts on the adjusting rod to insert the locking rod into the locking hole; when the pulley is about to reach the bottom of the vertical section of the L-shaped track, the adjusting rod abuts against the limiting rod, and the adjusting rod slides to overcome the elastic force of the second elastic member to allow the locking rod to disengage from the locking hole.

[0012] Furthermore, the second elastic member includes a second compression spring movably mounted on the slide rod, one end of which is in contact with the adjustment rod, and the other end is fixedly connected to an end of the slide rod away from the corresponding arc-shaped clamping claw.

[0013] Furthermore, two lifting rings are arranged on the horizontal section of the L-shaped track.

[0014] In the above technical scheme, the present invention provides an auxiliary device for erecting a utility pole, in which the vertical section of the L-shaped track is inserted into the foundation pit of the utility pole, the horizontal section is laid flat on the ground and fixed, the clamping assembly clamps the bottom peripheral side of the utility pole, the middle and upper part of the utility pole is lifted by the tripod erecting machine, and the pulley drives the bottom of the utility pole to move along the horizontal section toward the foundation pit, which can prevent the bottom of the utility pole from sliding on the ground, avoid the backfill around the foundation pit being brought into the foundation pit by the bottom of the utility pole, and reduce the resistance generated by the friction between the bottom of the utility pole and the ground, while reducing the difficulty of lifting and the risk of the tripod tilting, thereby improving the safety of the pole erection operation; in addition, the bottom of the utility pole is clamped and limited by the clamping assembly during the process of entering the foundation pit, thereby reducing the degree of shaking of the utility pole, and when the bottom of the utility pole is moved to the bottom of the foundation pit, the clamping assembly automatically releases the utility pole under the triggering of the limit rod, so as to facilitate the subsequent lifting of the L-shaped track, the pulley and the clamping assembly from the foundation pit before filling the pit, and reduce the frequency of construction workers approaching the utility pole as much as possible before filling the pit, thereby further improving construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the overall structure of a utility pole erecting device provided by an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of the front structure of a utility pole erector provided by an embodiment of the present invention;

[0018] Figure 3 A schematic diagram of the structure of a clamping assembly provided in an embodiment of the present invention;

[0019] Figure 4 A schematic diagram of the locking member structure provided by an embodiment of the present invention;

[0020] Figure 5 An L-shaped track placement structure schematic diagram provided in an embodiment of the present invention;

[0021] Figure 6 A schematic diagram of the coordinated structure of a tripod erector and a utility pole erector auxiliary device provided in an embodiment of the present invention.

[0022] Description of reference numerals:

[0023] 1. L-shaped track; 2. Pulley; 3. Clamping assembly; 3.1. Base plate; 3.2. Arc-shaped clamping claw; 3.3. First compression spring; 3.4. Rotating shaft; 3.5. Rotating shaft; 4. Limit rod; 5. Ground nail; 6. Fixed pile; 7. Locking piece; 7.1. Adjusting rod; 7.2. Locking rod; 7.3. Second compression spring; 7.4. Locking hole; 7.5. Sliding rod; 8. Gear; 9. Lifting ring; 10. Foundation pit. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] See also Figure 1-6 , an auxiliary device for erecting a utility pole provided in an embodiment of the present invention needs to be used in conjunction with a tripod erecting machine. The tripod erecting machine is a prior art and will not be described in detail herein. The auxiliary device for erecting a utility pole comprises an L-shaped track 1, a pulley 2, a clamping assembly 3 and a limit rod 4, wherein the L-shaped track 1 comprises a connected horizontal section and a vertical section, the horizontal section can be laid on the ground, a plurality of ground nails 5 are arranged on the horizontal section, the ground nails 5 are used to fix the horizontal section on the ground, and the number of ground nails 5 is preferably 2-5, the vertical section extends into a foundation pit 10 of the utility pole, and the vertical section is preferably closely attached to the inner wall of the foundation pit 10 of the utility pole to minimize the space occupied by the vertical section in the foundation pit 10, and a fixing pile 6 is also fixedly connected to the end of the vertical section, the fixing pile 6 is used to be inserted into the bottom of the foundation pit 10 of the utility pole to fix the vertical section to the foundation pit 10, and with the cooperation of the local nails 5 and the fixing pile 6, the L-shaped track 1 is fixed relative to the ground and the foundation pit 10. The pulley 2 is movably arranged on the L-shaped track 1. Specifically, wheel grooves are respectively arranged on both sides of the L-shaped track 1. Rollers located in the two wheel grooves are rotatably arranged on the bottom of the pulley 2. The pulley 2 is movably arranged on the L-shaped track 1 through the cooperation between the rollers and the wheel grooves. The clamping assembly 3 is rotatably connected to the pulley 2. When in the horizontal section, the axial direction of the rotating shaft 3.4 between the clamping assembly 3 and the pulley 2 is in a horizontal state, and the axial direction of the rotating shaft 3.4 is perpendicular to the length direction of the horizontal section. The clamping assembly 3 is used to clamp the bottom peripheral side of the electric pole; the limiting rod 4 is fixedly connected to the bottom of the vertical section. When the pulley 2 moves to the bottom of the vertical section, the limiting rod 4 drives the clamping assembly 3 to release the clamping of the electric pole.

[0026] The utility pole erection auxiliary device provided by the present invention inserts the vertical section of the L-shaped track 1 into the foundation pit 10 of the utility pole, the horizontal section is laid flat on the ground and fixed, the clamping assembly 3 clamps the bottom peripheral side of the utility pole, the middle and upper part of the utility pole is lifted by the tripod erection machine, and the pulley 2 drives the bottom of the utility pole to move along the horizontal section toward the foundation pit 10, which can prevent the bottom of the utility pole from sliding on the ground, prevent the fill soil around the foundation pit 10 from being brought into the foundation pit 10 by the bottom of the utility pole, and reduce the resistance caused by the friction between the bottom of the utility pole and the ground, while reducing The difficulty of lifting and the risk of the tripod tilting are reduced, and the safety of the pole erection operation is improved. In addition, when the utility pole enters the foundation pit 10, its bottom is clamped and limited by the clamping assembly 3, which reduces the degree of shaking of the utility pole. When the bottom of the utility pole is moved to the bottom of the foundation pit 10, the clamping assembly 3 automatically releases the utility pole under the triggering of the limit rod 4, which is convenient for the subsequent lifting of the L-shaped track 1, the pulley 2 and the clamping assembly 3 from the foundation pit 10 before filling the pit. Before filling the pit, the frequency of construction workers approaching the utility pole is reduced as much as possible, further improving construction safety.

[0027] See also Figure 3 The clamping assembly 3 includes a base plate 3.1, two oppositely arranged arc-shaped clamping jaws 3.2 rotatably connected to the base plate 3.1, and a locking member 7. The base plate 3.1 is rotatably connected to the pulley 2 via a rotating shaft 3.4, and the arc-shaped clamping jaws 3.2 are rotatably connected to the base plate 3.1 via a rotating shaft 3.5. A gear 8 is fixedly connected to the rotating shaft 3.5 of the two arc-shaped clamping jaws 3.2, and the two gears 8 are meshed. A first elastic member is arranged between the handles of the two arc-shaped clamping jaws 3.2. The process of the first elastic member restoring the deformation drives the two arc-shaped clamping jaws 3.2 to rotate and separate. Specifically, the first elastic member includes a first compression spring 3.3, and the two ends of the first compression spring 3.3 are respectively connected to the handle of a arc-shaped clamping jaw 3.2. The opposite sides of the handles of the two arc-shaped clamping jaws 3.2 are respectively provided with grooves, and the two ends of the first compression spring 3.3 are respectively placed in the grooves.

[0028] The locking member 7 is used to adjust the opening and closing degree of the two arc-shaped clamping jaws 3.2. Figure 4 The locking member 7 includes an adjusting rod 7.1, a locking rod 7.2 and a second elastic member. The adjusting rod 7.1 is provided with a plurality of locking holes 7.4, for example, four locking holes 7.4 arranged in parallel. The adjusting rod 7.1 is slidably connected to the handle of one of the arc-shaped clamping jaws 3.2 through a sliding rod 7.5, that is, one end of the sliding rod 7.5 is fixedly connected to the corresponding arc-shaped clamping jaw 3.2. The adjusting rod 7.1 is provided with a through hole adapted to the sliding rod 7.5, the sliding rod 7.5 is inserted into the through hole, and the locking rod 7.2 is fixedly connected to the handle of the other arc-shaped clamping jaw 3.2.

[0029] Specifically, the second elastic member includes a second compression spring 7.3 movably sleeved on the slide bar 7.5, one end of which abuts against the adjustment rod 7.1, and the other end is fixedly connected to one end of the slide bar 7.5 away from the corresponding arc-shaped clamping claw 3.2. When the locking rod 7.2 is aligned with any locking hole 7.4, the elastic force of the second elastic member acts on the adjustment rod 7.1 to insert the locking rod 7.2 into the locking hole 7.4. When the pulley 2 is about to reach the bottom of the vertical section of the L-shaped track 1, the adjustment rod 7.1 abuts against the limit rod 4, and the adjustment rod 7.1 slides to overcome the elastic force of the second elastic member to make the locking rod 7.2 disengage from the locking hole 7.4, and the first elastic member restores the elastic force to rotate and separate the two arc-shaped clamping claws 3.2.

[0030] See also Figure 5 Two lifting rings 9 are arranged on the horizontal section of the L-shaped track 1, and a steel wire rope is arranged on the lifting ring 9. The other end of the steel wire rope is passed around another fixed pulley located on the top of the tripod erector. When the electric pole is installed in the foundation pit 10, the limit rod 4 makes the two arc-shaped clamping claws 3.2 release the electric pole. The L-shaped track 1 and the pulley 2 and the clamping assembly 3 on the L-shaped track 1 can be lifted out of the foundation pit 10 by pulling the steel wire rope, so that the foundation pit 10 can be poured next, thereby ensuring the safety of the on-site construction workers.

[0031] Working principle: fix the center of the tripod pole erector just above the foundation pit 10, and tie one end of the rope to the middle and upper part of the pole after being guided by the movable pulley on the tripod pole erector. Lay the horizontal section of the L-shaped track 1 on the ground along the length direction of the pole and close to the pole. Extend the vertical section into the pit 10 along the inner wall of the foundation pit 10 of the pole. Move the pulley 2 on the horizontal section to move the clamping assembly 3 to the vicinity of the bottom of the pole, lift the bottom of the pole into the two opened arc-shaped clamps 3.2, and then close the two arc-shaped clamps. 3.2 Hold the bottom side of the pole tightly, and lock the two arc-shaped clamping claws 3.2 through the locking piece 7, so that the bottom of the pole is clamped by the clamping assembly 3; then operate the tripod pole erector, manually or electrically drive the roller to rotate, wind the rope, and drive the upper and middle part of the pole to be lifted upward. During the process of the pole being lifted, the pole drags the pulley 2 on the horizontal section of the L-shaped track 1 to move, and the clamping assembly 3 rotatably connected to the pulley 2 also rotates relative to the pulley 2 to adapt to the angle between the lifted pole and the horizontal section. When the trolley 2 is dragged and slid by the hoisted electric pole to the opening of the foundation pit 10, that is, the connection between the horizontal section and the vertical section of the L-shaped track 1, the electric pole is located above the opening of the foundation pit 10 in a nearly vertical posture, and the rope is continuously released, and the trolley 2 slides from the horizontal section into the vertical section, and the trolley 2 and the electric pole are lowered into the foundation pit 10. When the electric pole is about to reach the bottom of the foundation pit 10, that is, when the trolley 2 is about to reach the bottom of the vertical section of the L-shaped track 1, the adjusting rod 7.1 of the clamping assembly 3 abuts against the limiting rod 4, so that the adjusting rod 7.1 is relatively 7.5 slides, so that the locking hole 7.4 on the adjusting rod 7.1 disengages from the locking rod 7.2, and the elastic force of the first compression spring 3.3 is released, driving the two arc-shaped clamping claws 3.2 to rotate and separate to loosen the clamping of the electric pole. At this time, the electric pole continues to fall into the bottom of the foundation pit 10. The L-shaped track 1, the pulley 2 and the clamping assembly 3.2 are lifted out of the foundation pit 10 by pulling the wire rope, and then the foundation pit 10 of the electric pole is poured, which can ensure the safety of the construction workers. After the electric pole is completely fixed, the tripod pole erector and the auxiliary device are disassembled.

[0032] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A utility pole erection auxiliary device, characterized in that: include: An L-shaped track (1) comprising a connected horizontal section and a vertical section, wherein the horizontal section is laid on the ground and the vertical section is inserted into a foundation pit (10) of a utility pole; A trolley (2) is movably arranged on the L-shaped track (1); A clamping assembly (3) rotatably connected to the pulley (2) and used to clamp the bottom of the electric pole; A limit rod (4) is fixedly connected to the bottom of the vertical section. When the pulley (2) moves to the bottom of the vertical section, the limit rod (4) drives the clamping assembly (3) to release the clamping of the electric pole.

2. The utility pole erection auxiliary device according to claim 1, characterized in that: The horizontal section is provided with a plurality of ground nails (5), and the end of the vertical section is fixedly mounted with a fixing pile (6).

3. The utility pole erection auxiliary device according to claim 1, characterized in that: The vertical section is closely attached to the inner wall of the electric pole foundation pit (10).

4. The utility pole erection auxiliary device according to claim 1, characterized in that: The clamping assembly (3) comprises a base plate (3.1), two arc-shaped clamping jaws (3.2) arranged opposite to each other and rotatably connected to the base plate (3.1), and a locking member (7); the base plate (3.1) is rotatably connected to the pulley (2) via a rotating shaft (3.4); a gear (8) is fixedly connected to the rotating shaft (3.5) of the two arc-shaped clamping jaws (3.2), respectively; the two gears (8) are meshed; a first elastic member is arranged between the handles of the two arc-shaped clamping jaws (3.2); the first elastic member restores its deformation in a process that drives the two arc-shaped clamping jaws (3.2) to rotate and separate; and the locking member (7) is used to adjust the degree of opening and closing of the two arc-shaped clamping jaws (3.2).

5. The utility pole erection auxiliary device according to claim 4, characterized in that: The first elastic member comprises a first compression spring (3.3), both ends of which are respectively connected to the handle of an arc-shaped clamping claw (3.2).

6. The utility pole erection auxiliary device according to claim 5, characterized in that: The locking member (7) comprises an adjusting rod (7.1), a locking rod (7.2) and a second elastic member. A plurality of locking holes (7.4) are formed on the adjusting rod (7.1). The adjusting rod (7.1) is slidably connected to the handle of one of the arc-shaped clamping claws (3.2) via a sliding rod (7.5). The locking rod (7.2) is fixedly connected to the handle of the other arc-shaped clamping claw (3.2). When the locking rod (7.2) is aligned with any locking hole (7.4), the elastic force of the second elastic member acts on the adjusting rod (7.1) to insert the locking rod (7.2) into the locking hole (7.4). When the pulley (2) is about to reach the bottom of the vertical section of the L-shaped track (1), the adjusting rod (7.1) abuts against the limiting rod (4), and the adjusting rod (7.1) slides to overcome the elastic force of the second elastic member to allow the locking rod (7.2) to disengage from the locking hole (7.4).

7. The utility pole erection auxiliary device according to claim 6, characterized in that: The second elastic member comprises a second compression spring (7.3) movably sleeved on the slide rod (7.5), one end of which abuts against the adjustment rod (7.1) and the other end of which is fixedly connected to an end of the slide rod (7.5) away from the corresponding arc-shaped clamping claw (3.2).

8. The utility pole erection auxiliary device according to claim 1, characterized in that: Two lifting rings (9) are provided on the horizontal section of the L-shaped track (1).

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