A power transmission line foundation construction device and a construction method

Abstract

The present application relates to the technical field of power transmission line foundation construction, in particular to a power transmission line foundation construction device, which comprises a support body, a positioning rod, a straightening part, a straightening bolt and a guide arm, the positioning rod is arranged at the central position of the support body, the support body has a guide groove extending radially along the positioning rod, the straightening part is slidably arranged in the guide groove, the straightening part has a positioning opening penetrating in the longitudinal direction, the end of the positioning opening facing the positioning rod has a V-shaped groove, the straightening bolt penetrates the straightening part in the radial direction of the positioning rod and is threadedly connected with the straightening part, and the guide arm is arranged between the straightening part and the positioning rod, the straightening bolt is arranged on the straightening part, so that the straightening part can adjust the spacing between the anchor bolts while straightening the exposed part of the anchor bolt by tightening the straightening bolt, thereby ensuring the perpendicularity of the anchor bolt and accurately connecting the anchor bolt with the tower leg of the power transmission tower. The present application also relates to a power transmission line foundation construction method.

Description

Technical Field

[0001] This invention relates to the field of power transmission line foundation construction technology, specifically to a power transmission line foundation construction device. This invention also relates to a power transmission line foundation construction method. Background Technology

[0002] Anchor bolts are crucial components connecting the foundation of transmission line towers to the tower footplates. In the foundations of ordinary 35kV, 110kV, 220kV, and some 500kV straight-line towers, a foundation configuration of four anchor bolts is typically used. Since the anchor bolts are cast into the concrete foundation in a single pour, high precision is required for adjusting parameters such as the bolt root opening, thread extension length, and torsion of the bolts in the same group before pouring. Currently, there is no simple tool for adjusting anchor bolts during the concrete pouring process for transmission line foundations. Typically, temporary wooden boards are used for clamping, and a steel tape measure is used to adjust various dimensions. This operation is often time-consuming; for ordinary 220kV transmission line projects with excavated foundations, anchor bolt adjustment time accounts for approximately 30% of the total pouring time, significantly reducing construction efficiency. During the pouring process, as the concrete continuously impacts the anchor bolts, the wooden components are not sufficiently stable, causing relative displacement of the bolts. This necessitates secondary adjustments by construction technicians as needed. In this situation, the anchor bolts are subjected to great pressure from the foundation concrete in all directions, making adjustment very difficult and limiting the degree of correction.

[0003] Chinese patent CN213038420U discloses an adjustable anchor bolt fixing bracket for power transmission line foundation construction. It includes a mounting plate with a rotatable ring inside. The ring contains four L-shaped plates forming a cross-shaped through hole. A U-shaped plate, which can slide between two adjacent L-shaped plates, is provided. A nut is provided on the U-shaped plate, and an anchor bolt that mates with the nut is located within the nut. A first screw hole is provided on the end face of the U-shaped plate near the L-shaped plate, and a limiting bolt is located in the first screw hole. Sliding grooves of the same length are provided at the four corners of the bottom surface of the mounting plate, and sliding limiting plates are located in the grooves. A second screw hole communicating with the groove is provided on the side of the mounting plate near the groove, and an adjusting bolt is located in the second screw hole.

[0004] When adjusting the anchor bolts, the fixed bracket cannot guarantee the verticality of the exposed part of the anchor bolts, which makes the anchor bolts prone to bending during adjustment, thus making it impossible to accurately connect the tower feet of the power transmission tower with the anchor bolts. Summary of the Invention

[0005] To address the aforementioned issues, a power transmission line foundation construction device is provided. By setting straightening bolts on straightening components, the straightening components can adjust the spacing between anchor bolts while simultaneously straightening the exposed portions of the anchor bolts by tightening the straightening bolts. This ensures the verticality of the anchor bolts and allows for precise alignment with the tower feet of the power transmission tower, solving the problem that existing fixed supports cannot straighten anchor bolts.

[0006] To address the problems of existing technologies, this invention provides a construction device for transmission line foundations, comprising a support body, a positioning rod, a straightening member, a straightening bolt, and a guide arm. The positioning rod is fixedly positioned longitudinally at the center of the support body. The support body has a guide groove extending radially along the positioning rod. The straightening member is slidably disposed in the guide groove and has a longitudinally penetrating positioning opening. The end of the positioning opening facing the positioning rod has a V-shaped groove. The straightening bolt penetrates the straightening member radially along the positioning rod and is threadedly connected to it. The guide arm is disposed between the straightening member and the positioning rod and is used to adjust the distance between the positioning rod and the straightening member.

[0007] Preferably, the straightening member includes a connecting plate extending longitudinally and support plates extending laterally along both ends of the connecting plate. A slider is provided between the two support plates. A guide rail extending along the length direction is provided on the side of the guide groove. The slider slides in cooperation with the guide rail. Positioning openings with overlapping vertical projections are provided on the two support plates.

[0008] Preferably, the guide arm includes an internal threaded cylinder, a positioning cylinder, and a connecting rod. The internal threaded cylinder is coaxially sleeved on the positioning rod, and the internal threaded cylinder is coaxially threadedly connected to the positioning rod. The positioning cylinder is coaxially rotatably disposed on the outer circumferential surface of the internal threaded cylinder, and the two ends of the connecting rod are rotatably connected to the straightening member and the outer circumferential surface of the positioning cylinder, respectively.

[0009] Preferably, the guide arm further includes a sliding block and a threaded rod. Rotary seats are provided at the top and bottom of the circumferential surface of the positioning cylinder. The threaded rod is rotatably disposed between the two rotating seats. The sliding block is slidably disposed between the two rotating seats along the longitudinal direction. The threaded rod passes through the sliding block and is threadedly connected to it.

[0010] Preferably, the circumferential surface of the positioning cylinder is further provided with a sliding groove extending along its axial direction, and the inner side of the sliding block is provided with a guide block extending along the axial direction of the positioning cylinder, the guide block being slidably disposed in the sliding groove.

[0011] Preferably, the bottom end of the internally threaded cylinder is provided with a fixing ring coaxial with it, the guide arm further includes a limiting ring, the positioning cylinder coaxially abuts against the top end of the fixing ring, the limiting ring coaxially abuts against the top end of the positioning cylinder, and the bottom end of the fixing ring is provided with a first nut coaxially fixedly connected to it, the first nut being threadedly connected to the positioning rod.

[0012] Preferably, a lever extending radially is provided on the outer circumferential surface of the fixing ring.

[0013] Preferably, the support body includes a square platform, a first connecting pipe, a second connecting pipe, and a connecting frame. The first connecting pipe and the second connecting pipe are arranged parallel to each other on the periphery of the square platform. A guide groove is formed between the first connecting pipe and the second connecting pipe. The straightening member is slidably arranged between the first connecting pipe and the second connecting pipe. The connecting frame is arranged at the outer ends of the first connecting pipe and the second connecting pipe.

[0014] Preferably, the top and bottom ends of the connecting frame are provided with supports extending in the horizontal direction, and a second nut is provided on the support. The construction device also includes a threaded column, which passes through the support in the longitudinal direction and is threadedly connected to the second nut.

[0015] A method for constructing a transmission line foundation, implemented using a construction device. The device includes a support body, a positioning rod, a straightening member, a straightening bolt, and a guide arm. The positioning rod is fixedly positioned longitudinally at the center of the support body. The support body has a guide groove extending radially along the positioning rod. The straightening member is slidably disposed in the guide groove and has a longitudinally penetrating positioning opening. One end of the positioning opening facing the positioning rod has a V-groove. The straightening bolt penetrates the straightening member radially along the positioning rod and is threadedly connected to it. The guide arm is positioned between the straightening member and the positioning rod, and is used to adjust the distance between the positioning rod and the straightening member. The construction method includes the following steps:

[0016] Step 1: Place the support body horizontally so that the anchor bolts pass through the positioning holes of the straightening component;

[0017] Step 2: Rotate the straightening bolt relative to the straightening member so that it abuts against the circumferential surface of the anchor bolt radially;

[0018] Step 3: Adjust the distance between each anchor bolt and the positioning rod using the guide arm;

[0019] Step 4: Rotate the straightening bolt again so that the circumferential surface of the anchor bolt is fully in contact with the inclined surface of the V-groove of the positioning port.

[0020] The advantages of this invention compared to the prior art are:

[0021] This invention sets straightening bolts on a straightening member, which can adjust the spacing between the anchor bolts and straighten the exposed parts of the anchor bolts by tightening the straightening bolts, thereby ensuring the verticality of the anchor bolts and enabling them to be accurately connected to the tower feet of the power transmission tower. Attached Figure Description

[0022] Figure 1 This is a three-dimensional diagram of a power transmission line foundation construction device.

[0023] Figure 2 This is a top view of a power transmission line foundation construction device.

[0024] Figure 3 This is a three-dimensional sectional view of a power transmission line foundation construction device.

[0025] Figure 4 This is a cross-sectional view of a power transmission line foundation construction device.

[0026] Figure 5 yes Figure 4 A magnified view of part A.

[0027] Figure 6 This is a partial three-dimensional exploded view of a power transmission line foundation construction device.

[0028] Figure 7 yes Figure 6 A magnified view of section B.

[0029] Figure 8 This is a three-dimensional diagram of a straightening component and a guide arm in a power transmission line foundation construction device.

[0030] The diagram is labeled as follows: 1-Support body; 11-Square platform; 12-First connecting pipe; 13-Second connecting pipe; 14-Connecting frame; 141-Support; 142-Second nut; 15-Threaded column; 2-Positioning rod; 3-Straightening component; 31-Guide groove; 32-V-groove; 33-Connecting plate; 34-Support plate; 35-Slider; 36-Guide rail; 4-Straightening bolt; 5-Guide arm; 51-Internal threaded cylinder; 511-Fixing ring; 512-First nut; 513-Pulley; 52-Positioning cylinder; 521-Rotating seat; 522-Slide groove; 53-Connecting rod; 54-Sliding block; 541-Guide block; 55-Threaded rod; 56-Limiting ring; 6-Anchor bolt. Detailed Implementation

[0031] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 8 As shown, the present invention provides:

[0033] A power transmission line foundation construction device includes a support body 1, a positioning rod 2, a straightening member 3, a straightening bolt 4, and a guide arm 5. The positioning rod 2 is fixedly positioned longitudinally at the center of the support body 1. The support body 1 has a guide groove 31 extending radially along the positioning rod 2. The straightening member 3 is slidably disposed in the guide groove 31 and has a positioning port extending longitudinally. The end of the positioning port facing the positioning rod 2 has a V-groove 32. The straightening bolt 4 extends radially through the straightening member 3 and is threadedly connected to it. The guide arm 5 is disposed between the straightening member 3 and the positioning rod 2 and is used to adjust the distance between the positioning rod 2 and the straightening member 3.

[0034] In use, the anchor bolt 6 is passed through the positioning hole from the bottom of the straightening member 3, and the clamp body is fixed so that the positioning rod 2 is located in the center of the foundation. The straightening bolt 4 is rotated so that the straightening bolt 4 abuts against the circumferential surface of the anchor bolt 6 in the radial direction. Then, the distance between each anchor bolt 6 and the positioning rod 2 is adjusted by the guide arm 5 until each anchor bolt 6 can correspond to each hole of the tower foot. Then, the straightening bolt 4 is tightened so that the anchor bolt 6 abuts against the V-groove 32. Then, under the action of the symmetrical inclined surface of the V-groove 32, the anchor bolt 6 is straightened to prevent the anchor bolt 6 from bending.

[0035] In this embodiment, by setting the straightening bolt 4 on the straightening member 3, the straightening member 3 can adjust the spacing between each anchor bolt 6, and by tightening the straightening bolt 4, it can straighten the exposed part of the anchor bolt 6, thereby ensuring the verticality of the anchor bolt 6 and enabling it to be accurately connected to the tower foot of the power transmission tower.

[0036] like Figure 3 and Figure 6 As shown, the straightening member 3 includes a connecting plate 33 extending longitudinally and a support plate 34 extending laterally along both ends of the connecting plate 33. A slider 35 is provided between the two support plates 34. A guide rail 36 extending along its length direction is provided on the side of the guide groove 31. The slider 35 slides with the guide rail 36. The two support plates 34 are provided with positioning openings that overlap vertically.

[0037] The longitudinally extending connecting plate 33 can connect two transversely extending support plates 34, and both support plates 34 are provided with positioning holes, so that after the anchor bolt 6 passes through the positioning hole, the anchor bolt 6 can abut in the V-groove 32 of the two support plates 34, so that when the straightening bolt 4 rotates on the connecting plate 33, the anchor bolt 6 can be gradually straightened, thereby preventing it from bending.

[0038] like Figure 5 As shown, the guide arm 5 includes an internal threaded cylinder 51, a positioning cylinder 52, and a connecting rod 53. The internal threaded cylinder 51 is coaxially sleeved on the positioning rod 2, and the internal threaded cylinder 51 is coaxially threadedly connected to the positioning rod 2. The positioning cylinder 52 is coaxially rotatably disposed on the outer circumferential surface of the internal threaded cylinder 51. The two ends of the connecting rod 53 are rotatably connected to the straightening member 3 and the outer circumferential surface of the positioning cylinder 52, respectively.

[0039] When it is necessary to adjust the distance between each anchor bolt 6 and the positioning rod 2, the internal threaded cylinder 51 is rotated relative to the positioning rod 2. Since the positioning rod 2 and the internal threaded cylinder 51 are threadedly connected, the internal threaded cylinder 51 can move longitudinally on the positioning rod 2. The positioning cylinder 52 is rotatably set on the circumferential surface of the internal threaded cylinder 51. The two ends of the connecting rod 53 are rotatably connected to the straightening member 3 and the positioning cylinder 52 respectively. When the internal threaded cylinder 51 moves on the positioning rod 2, the connecting rod 53 can drive the straightening member 3 to move in the guide groove 31 of the support body 1, thereby adjusting the distance between the positioning rod 2 and the anchor bolt 6.

[0040] like Figure 5 As shown, the guide arm 5 also includes a sliding block 54 and a threaded rod 55. The top and bottom ends of the circumferential surface of the positioning cylinder 52 are provided with rotating seats 521. The threaded rod 55 is rotatably disposed between the two rotating seats 521. The sliding block 54 is slidably disposed between the two rotating seats 521 along the longitudinal direction. The threaded rod 55 passes through the sliding block 54 and is threadedly connected to it.

[0041] By sliding the sliding block 54 axially on the circumferential surface of the positioning cylinder 52, the sliding block 54, which is threadedly connected to the threaded rod 55, can move on the circumferential surface of the positioning cylinder 52 when the threaded rod 55 is rotated. This allows for individual adjustment of the distance between the four anchor bolts 6 and the positioning rod 2, thereby meeting actual construction requirements.

[0042] like Figure 5 As shown, a groove 522 extending along its axial direction is also provided on the circumferential surface of the positioning cylinder 52, and a guide block 541 extending along the axial direction of the positioning cylinder 52 is provided on the inner side of the sliding block 54, and the guide block 541 is slidably disposed in the groove 522.

[0043] By providing a groove 522 extending axially on the circumferential surface of the positioning cylinder 52, and a guide block 541 extending longitudinally on the inner side of the sliding block 54, the guide block 541 and the groove 522 are slidably engaged, thereby enabling the sliding block 54 to slide stably between the two rotating seats 521 when the threaded rod 55 is rotated.

[0044] like Figure 5As shown, the bottom end of the internal threaded cylinder 51 is provided with a fixing ring 511 coaxial with it, the guide arm 5 also includes a limiting ring 56, the positioning cylinder 52 is coaxially abutted against the top end of the fixing ring 511, the limiting ring 56 is coaxially abutted against the top end of the positioning cylinder 52, the bottom end of the fixing ring 511 is provided with a first nut 512 coaxially fixedly connected with it, and the first nut 512 is threadedly connected to the positioning rod 2.

[0045] By setting a retaining ring 511 at the bottom end of the internal threaded cylinder 51, the positioning cylinder 52 is prevented from falling downwards off the internal threaded cylinder 51. The limiting ring 56 is set at the top end of the outer circumference of the internal threaded cylinder 51, so as to prevent the positioning cylinder 52 from falling upwards off the internal threaded cylinder 51. This allows the rotation of the internal threaded cylinder 51 to drive the positioning cylinder 52 to move stably in the longitudinal direction. By fixing the first nut 512 at the bottom end of the retaining ring 511, the first nut 512 can drive the internal threaded cylinder 51 to move on the positioning rod 2 when the internal threaded cylinder 51 is rotated.

[0046] like Figure 5 As shown, a paddle 513 extending radially is provided on the outer circumferential surface of the fixing ring 511.

[0047] By setting a lever 513 on the outer circumference of the fixed ring 511, it is easy for construction personnel to rotate the internal threaded cylinder 51 relative to the positioning rod 2.

[0048] like Figure 6 As shown, the support body 1 includes a square platform 11, a first connecting pipe 12, a second connecting pipe 13, and a connecting frame 14. The first connecting pipe 12 and the second connecting pipe 13 are arranged parallel to each other on the periphery of the square platform 11, and a guide groove 31 is formed between the first connecting pipe 12 and the second connecting pipe 13. The straightening member 3 is slidably arranged between the first connecting pipe 12 and the second connecting pipe 13, and the connecting frame 14 is arranged at the outer ends of the first connecting pipe 12 and the second connecting pipe 13.

[0049] The square platform 11, the first connecting pipe 12, the second connecting pipe 13, and the connecting frame 14 can form a mechanism for placing the straightening member 3 and the positioning rod 2. After the square platform 11 is fixedly set at the center of the foundation, the distance between the anchor bolt 6 and the center of the foundation can be adjusted by adjusting the guide arm 5.

[0050] like Figure 4 and Figure 7 As shown, the top and bottom ends of the connecting frame 14 are provided with supports 141 extending in the horizontal direction, and a second nut 142 is provided on the support 141. The construction device also includes a threaded column 15, which passes through the support 141 in the longitudinal direction and is threadedly connected to the second nut 142.

[0051] By setting a support 141 on the connecting frame 14, the height of the support body 1 can be adjusted when the threaded column 15 is rotated relative to the second nut 142, thereby satisfying the positioning and straightening of anchor bolts 6 at different heights.

[0052] A method for constructing a transmission line foundation, implemented using a construction device, includes a support body 1, a positioning rod 2, a straightening member 3, a straightening bolt 4, and a guide arm 5. The positioning rod 2 is fixedly positioned longitudinally at the center of the support body 1. The support body 1 has a guide groove 31 extending radially along the positioning rod 2. The straightening member 3 is slidably disposed in the guide groove 31 and has a longitudinally penetrating positioning opening. One end of the positioning opening facing the positioning rod 2 has a V-groove 32. The straightening bolt 4 penetrates the straightening member 3 radially along the positioning rod 2 and is threadedly connected to it. The guide arm 5 is positioned between the straightening member 3 and the positioning rod 2, and is used to adjust the distance between the positioning rod 2 and the straightening member 3. The construction method includes the following steps:

[0053] Step 1: Place the support body 1 horizontally so that the anchor bolts 6 pass through the positioning holes of the straightening component 3;

[0054] Step 2: Rotate the straightening bolt 4 relative to the straightening member 3 so that it abuts against the circumferential surface of the anchor bolt 6 in the radial direction;

[0055] Step 3: Adjust the distance between each anchor bolt 6 and the positioning rod 2 using the guide arm 5;

[0056] Step 4: Rotate the straightening bolt 4 again so that the circumferential surface of the anchor bolt 6 is fully in contact with the inclined surface of the V-groove 32 of the positioning port.

[0057] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A construction device for power transmission line foundations, characterized in that, The device includes a support body (1), a positioning rod (2), a straightening member (3), a straightening bolt (4), and a guide arm (5). The positioning rod (2) is fixedly positioned longitudinally at the center of the support body (1). The support body (1) has a guide groove (31) extending radially along the positioning rod (2). The straightening member (3) is slidably disposed in the guide groove (31). The straightening member (3) has a positioning port extending longitudinally. The end of the positioning port facing the positioning rod (2) has a V-groove (32). The straightening bolt (4) extends radially through the straightening member (3) and is threadedly connected to it. The guide arm (5) is disposed between the straightening member (3) and the positioning rod (2). The guide arm (5) is used to adjust the distance between the positioning rod (2) and the straightening member (3). The straightening member (3) includes a connecting plate (33) extending longitudinally and a support plate (34) extending laterally at both ends of the connecting plate (33). A slider (35) is provided between the two support plates (34). A guide rail (36) extending along its length direction is provided on the side of the guide groove (31). The slider (35) and the guide rail (36) are slidably engaged. The two support plates (34) are provided with positioning openings that overlap vertically. The guide arm (5) includes an internal threaded cylinder (51), a positioning cylinder (52), and a connecting rod (53). The internal threaded cylinder (51) is coaxially sleeved on the positioning rod (2). The internal threaded cylinder (51) is coaxially threadedly connected to the positioning rod (2). The positioning cylinder (52) is coaxially rotatably disposed on the outer circumferential surface of the internal threaded cylinder (51). The two ends of the connecting rod (53) are rotatably connected to the straightening member (3) and the outer circumferential surface of the positioning cylinder (52), respectively. The guide arm (5) also includes a sliding block (54) and a threaded rod (55). The top and bottom ends of the circumferential surface of the positioning cylinder (52) are provided with rotating seats (521). The threaded rod (55) is rotatably disposed between the two rotating seats (521). The sliding block (54) is slidably disposed between the two rotating seats (521) along the longitudinal direction. The threaded rod (55) passes through the sliding block (54) and is threadedly connected to it.

2. The transmission line foundation construction device according to claim 1, characterized in that, The circumferential surface of the positioning cylinder (52) is also provided with a sliding groove (522) extending along its axial direction, and the inner side of the sliding block (54) is provided with a guide block (541) extending along the axial direction of the positioning cylinder (52), and the guide block (541) is slidably disposed in the sliding groove (522).

3. The transmission line foundation construction device according to claim 2, characterized in that, The bottom end of the internal threaded cylinder (51) is provided with a fixed ring (511) coaxial with it. The guide arm (5) also includes a limiting ring (56). The positioning cylinder (52) is coaxially abutted against the top end of the fixed ring (511). The limiting ring (56) is coaxially abutted against the top end of the positioning cylinder (52). The bottom end of the fixed ring (511) is provided with a first nut (512) coaxially fixedly connected with it. The first nut (512) is threadedly connected to the positioning rod (2).

4. The transmission line foundation construction device according to claim 3, characterized in that, The outer circumferential surface of the fixing ring (511) is provided with a paddle (513) extending radially therefrom.

5. The transmission line foundation construction device according to claim 1, characterized in that, The support body (1) includes a square platform (11), a first connecting pipe (12), a second connecting pipe (13), and a connecting frame (14). The first connecting pipe (12) and the second connecting pipe (13) are arranged parallel to each other on the periphery of the square platform (11). A guide groove (31) is formed between the first connecting pipe (12) and the second connecting pipe (13). The straightening member (3) is slidably arranged between the first connecting pipe (12) and the second connecting pipe (13). The connecting frame (14) is arranged at the outer end of the first connecting pipe (12) and the second connecting pipe (13).

6. The transmission line foundation construction device according to claim 5, characterized in that, The top and bottom ends of the connecting frame (14) are provided with supports (141) extending in the horizontal direction. A second nut (142) is provided on the support (141). The construction device also includes a threaded column (15), which passes through the support (141) in the longitudinal direction and is threadedly connected to the second nut (142).

7. A construction method for a transmission line foundation construction device as described in any one of claims 1 to 6, comprising the following steps: Step 1: Place the support body (1) horizontally so that the anchor bolts (6) pass through the positioning holes of the straightening member (3); Step 2: Rotate the straightening bolt (4) relative to the straightening member (3) so that it abuts against the circumferential surface of the anchor bolt (6) in the radial direction; Step 3: Adjust the distance between each anchor bolt (6) and the positioning rod (2) using the guide arm (5); Step 4: Rotate the straightening bolt (4) again so that the circumferential surface of the anchor bolt (6) is fully in contact with the inclined surface of the V-groove (32) of the positioning port.

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