A tensioning device for high-strength utility poles

Abstract

This utility model relates to the technical field of pole tensioning devices, and more particularly to a tensioning device for high-strength poles. It includes a pole steel mold, the inner wall of which is movably connected to the outer wall of a tensioning disc, and the inner wall of the steel mold is movably connected to the outer wall of a tensioning rod. The outer wall of the tensioning rod is provided with external thread teeth, which are threaded to the inner wall of a locking member. The outer wall of the tensioning rod is also movably connected to the inner wall of an anchor through the external thread teeth. One side of the anchor is installed and connected to one end of a tensioning head, and the other end of the tensioning head is installed and connected to the drive end of a hydraulic cylinder. The outer wall of the output end of the hydraulic cylinder is fixedly connected to one end of a foot pedal. This device, by providing a locking member on the tensioning rod, secures the tensioning rod to the pole steel mold by rotating the locking member after the reinforcing bar is stretched to a predetermined threshold, thereby effectively preventing the release of tension.

Description

Technical Field

[0001] This utility model relates to the technical field of pole tensioning devices, specifically to a tensioning device for a high-strength pole. Background Technology

[0002] High-strength pole tensioning devices are specialized equipment used for tensioning power poles. They involve applying appropriate tension to ensure the pole and its connecting components reach the desired tightness, thereby improving the stability and durability of the entire structure. These devices are widely used in the construction of infrastructure such as power lines and communication lines, and are crucial tools for ensuring the safe and reliable operation of power poles.

[0003] Chinese utility model patent CN220700000U discloses a rebar tensioning device for utility poles, including "a steel mold mechanism, a tensioning mechanism, and a carrying plate. The interior of the steel mold mechanism is filled with concrete components. A steel disc is welded to the right end of the rebar. A second connecting rod is sleeved on the outside of the insert rod. A steel sleeve is connected to the outer thread of the second external thread. The tensioning mechanism is located at the right end of the second connecting rod. The carrying plate is located below the tensioning mechanism. A scissor lift frame is installed at the bottom of the carrying plate. This utility model is configured to allow the insert rod to be inserted into the second connecting rod." When tensioning the rebar, the device uses a hydraulic mechanism to stretch the rebar. However, this device lacks a locking structure. After reaching the preset tension stress value, it is necessary to maintain the tensioned state to prevent the tension from being released, thus ensuring uniform tension on the rebar. Utility Model Content

[0004] The purpose of this invention is to provide a tensioning device for high-strength utility poles to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tensioning device for a high-strength utility pole, comprising a utility pole steel mold, wherein the inner side wall of the utility pole steel mold is movably connected to the outer side wall of the tensioning disc;

[0006] The inner wall of the pole steel mold is movably connected to the outer wall of the tension rod, and the outer wall of the tension rod is provided with external thread teeth;

[0007] The outer wall of the tension rod is connected to the inner wall of the locking component by external thread teeth;

[0008] The outer wall of the tension rod is movably connected to the inner wall of the anchor through external thread teeth. One side of the anchor is installed and connected to one end of the tensioning head. The other end of the tensioning head is installed and connected to the drive end of the hydraulic cylinder. The outer wall of the output end of the hydraulic cylinder is fixedly connected to one end of the foot pedal.

[0009] The outer wall of the hydraulic cylinder is installed and connected to the inner wall of the fixed steel frame;

[0010] The hydraulic cylinder is connected to the hydraulic pump via a hydraulic oil pipe.

[0011] The steel formwork for the utility pole has a limiting groove on its inner side wall at the rear end;

[0012] The outer wall of the tensioning plate is fixedly connected to a limit ring, and the interior of the tensioning plate has a series of reinforcing bar holes arranged in a circular array.

[0013] The rear end of the tension rod is fixedly connected to a disc, and the disc has two steel bar holes arranged in a circular array inside.

[0014] The front side of the anchor is provided with a connecting cap, and the rear end of the anchor is provided with a threaded hole.

[0015] The end of the tensioning head is provided with a connecting cap 2;

[0016] The number of foot pedals is two, and the two foot pedals are located on both sides of the tensioning head;

[0017] The fixed steel frame includes a frame body, the top surface of which has two shaft holes. The inner wall of each shaft hole is threaded to the outer wall of a lead screw. The bottom end of each lead screw is fixedly connected to the top surface of a mounting ring. The outer wall of each lead screw is threaded to the inner wall of a rotating handle.

[0018] The beneficial effects of this utility model are as follows: The device has a locking member on the tension rod, and the tension rod is threadedly connected to the locking member through external thread teeth. When the steel bar is stretched to a predetermined threshold, the locking member is rotated to fix the tension rod and the steel membrane of the pole, thereby effectively preventing the release of tension and insufficient stretching of the steel bar. Furthermore, the tension rod of this device has a deepened external thread teeth and an independently set anchor with a reserved hole inside, which further improves the connection strength of the device and ensures production safety.

[0019] To ensure the tensioning plate can be stably positioned and controlled within the steel membrane of the utility pole:

[0020] A further configuration is made whereby the outer wall of the limiting ring is movably connected to the inner wall of the limiting groove.

[0021] By adopting the above technical solution, the tensioning plate is placed in the steel membrane of the pole by movably connecting the limiting ring and the limiting groove.

[0022] To ensure a secure connection between the anchor and the tension rod, and to guarantee the smooth operation of the device:

[0023] A further configuration is made whereby the threaded hole inside the anchor is threadedly connected to the external thread of the tension rod.

[0024] By adopting the above technical solution, the anchor is connected to the tension rod through the internal threaded hole, which makes the anchor and tension rod securely installed, improves the safety factor, and ensures the smooth operation of the device.

[0025] To facilitate the installation of anchors and tensioning heads:

[0026] The connection cap one and the connection cap two are further configured to be connected by bolts.

[0027] By adopting the above technical solution, the anchor and the tension rod head are connected by connecting cap one and connecting cap two and bolts, making the installation process convenient and the installation effect stable.

[0028] To ensure the stable installation of the hydraulic cylinder:

[0029] A further configuration is provided: the hydraulic cylinder is mounted inside the frame via two mounting rings.

[0030] By adopting the above technical solution, the hydraulic cylinder is fixedly installed inside the steel frame to provide power for the device to stretch.

[0031] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0033] Figure 2 This is a schematic diagram of the structure of the steel membrane for the utility pole according to this utility model;

[0034] Figure 3 This is a schematic diagram of the tensioning disc of this utility model;

[0035] Figure 4 This is a right-side view of the tensioning plate of this utility model;

[0036] Figure 5 This is a schematic diagram of the tension rod of this utility model;

[0037] Figure 6 This is a schematic diagram of the locking component of this utility model;

[0038] Figure 7 This is a schematic diagram of the structure of the anchor of this utility model;

[0039] Figure 8 This is a rear view schematic diagram of the anchor of this utility model;

[0040] Figure 9 This is a schematic diagram of the tensioning head of this utility model;

[0041] Figure 10This utility model Figure 9 Enlarged schematic diagram of the structure at point A in the middle;

[0042] Figure 11 This is a schematic diagram of the fixed steel frame structure of this utility model.

[0043] In the diagram: 1. Pole steel formwork; 11. Limiting groove; 2. Tensioning plate; 21. Limiting ring; 22. Rebar hole one; 3. Tensioning rod; 31. External threaded tooth; 32. Disc; 33. Rebar hole two; 4. Locking component; 5. Anchor; 51. Connecting cap one; 52. Threaded hole; 6. Tensioning head; 61. Connecting cap two; 62. Bolt; 7. Hydraulic cylinder; 8. Foot pedal; 9. Fixed steel frame; 91. Frame body; 92. Shaft hole; 93. Lead screw; 94. Mounting ring; 95. Rotating handle; 10. Hydraulic pump. Detailed Implementation

[0044] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0045] Please see Figures 1 to 11 A tensioning device for a high-strength utility pole includes a utility pole steel mold 1, wherein the inner side wall of the utility pole steel mold 1 is movably connected to the outer side wall of the tensioning plate 2.

[0046] The inner wall of the pole steel formwork 1 is movably connected to the outer wall of the tension rod 3, and the outer wall of the tension rod 3 is provided with external thread teeth 31;

[0047] The outer wall of the tension rod 3 is threadedly connected to the inner wall of the locking member 4 via the external thread tooth 31;

[0048] The outer wall of the tension rod 3 is movably connected to the inner wall of the anchor 5 through the external thread tooth 31. One side of the anchor 5 is installed and connected to one end of the tension head 6. The other end of the tension head 6 is installed and connected to the drive end of the hydraulic cylinder 7. The outer wall of the output end of the hydraulic cylinder 7 is fixedly connected to one end of the foot pedal 8.

[0049] The outer wall of the hydraulic cylinder 7 is installed and connected to the inner wall of the fixed steel frame 9;

[0050] The hydraulic cylinder 7 is connected to the hydraulic pump 10 via a hydraulic oil pipe.

[0051] A limit groove 11 is provided on the inner side wall at the rear end of the steel formwork 1 for the utility pole;

[0052] The outer wall of the tensioning plate 2 is fixedly connected to a limit ring 21, and the interior of the tensioning plate 2 is provided with steel bar holes 22 arranged in a circular array.

[0053] The rear end of the tension rod 3 is fixedly connected to a disc 32, and the interior of the disc 32 has steel bar holes 33 arranged in a circular array.

[0054] An anchor 5 has a connecting cap 51 on its front side and a threaded hole 52 inside its rear end.

[0055] The end of the tensioning head 6 is provided with a connecting cap 2 61;

[0056] There are two foot pedals 8, which are located on both sides of the tensioning head 6;

[0057] The fixed steel frame 9 includes a frame body 91. The top surface of the frame body 91 has two shaft holes 92. The inner wall of each shaft hole 92 is threaded to the outer wall of the lead screw 93. The bottom end of each lead screw 93 is fixedly connected to the top surface of the mounting ring 94. The outer wall of each lead screw 93 is threaded to the inner wall of the rotating handle 95.

[0058] In this embodiment, as Figure 2 , Figure 3 and Figure 4 As shown, the outer wall of the limiting ring 21 is movably connected to the inner wall of the limiting groove 11.

[0059] In this embodiment, as Figure 1 , Figure 5 , Figure 7 and Figure 8 As shown, the threaded hole 52 inside the anchor 5 is threadedly connected to the external thread tooth 31 of the tension rod 3.

[0060] In this embodiment, as Figure 7 and Figure 10 As shown, connecting cap 51 and connecting cap 61 are connected by bolts 62.

[0061] In this embodiment, as Figure 1 and Figure 11 As shown, the hydraulic cylinder 7 is mounted inside the frame 91 via two mounting rings 94.

[0062] The tensioning device for this high-strength utility pole operates as follows:

[0063] First, place the steel wire inside the pole formwork 1, and pass one end of the steel wire through the rebar hole 22 inside the tensioning plate 2. The tensioning plate 2 is placed in the limiting groove 11 at the end of the pole formwork 1 through the limiting ring 21 on the outer wall, so that the tensioning plate 2 is limited and placed inside the pole formwork 1. The other end of the steel wire passes through the rebar hole 33 inside the disc 32 at the end of the tensioning rod 3. Then, put the locking piece 4 on the tensioning rod 3 and tighten the threads of the external thread 31 of the tensioning rod 3. Then, pour the mixed high-grade concrete into the pole formwork 1 and close the upper and lower parts of the pole formwork 1. Then, hoist the closed pole formwork 1 to the fixed steel frame 9. The anchor 5 is threaded to the tensioning rod 3 through the threaded hole 52 inside the anchor 5, and the connecting cap 51 on the outer wall of the anchor 5 is connected to the connecting cap 61 at the end of the tensioning head 6 through bolts 62. Then, by rotating the anchor 5, the foot 8 is fastened to the pole formwork 1, and the hydraulic system is started. The hydraulic pump 10 drives the hydraulic cylinder 7 to stretch the tensioning head 6 through the oil pipe, thereby prestressing the steel wire inside the pole steel mold 1. When the tension reaches the predetermined threshold, the tensioning rod 3 is locked to the pole steel mold 1 by rotating the locking part 4, thereby avoiding uneven tension caused by the release of tension prestress. The fixed steel frame 9 is fixedly installed on the ground through the frame body 91. The top shaft hole 92 of the frame body 91 is threadedly connected to the lead screw 93. The hydraulic cylinder 7 drives the lead screw 93 to rotate in the shaft hole 92 by rotating the rotating handle 95, thereby driving the mounting ring 94 at the bottom of the lead screw 93 to move up and down along the direction of the lead screw 93, realizing the height adjustment effect of the hydraulic cylinder 7 in the frame body 91. The deepened external thread teeth 31 of the tensioning rod 3 and the independently set anchor 5 ensure the safe production of the device. The hydraulic cylinder 7 is model HOB80-400 and the hydraulic pump 10 is model PVQ5.

[0064] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0065] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0066] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A tensioning device for high-strength electric poles, comprising an electric pole steel form (1), characterised in that: The inner wall of the pole steel mold (1) is movably connected to the outer wall of the tensioning plate (2); The inner wall of the pole steel mold (1) is movably connected to the outer wall of the tension rod (3), and the outer wall of the tension rod (3) is provided with external thread teeth (31); The outer wall of the tension rod (3) is threadedly connected to the inner wall of the locking member (4) via external thread teeth (31); The outer wall of the tension rod (3) is movably connected to the inner wall of the anchor (5) through the external thread teeth (31). One side of the anchor (5) is installed and connected to one end of the tension head (6). The other end of the tension head (6) is installed and connected to the drive end of the hydraulic cylinder (7). The outer wall of the output end of the hydraulic cylinder (7) is fixedly connected to one end of the foot pedal (8). The outer wall of the hydraulic cylinder (7) is installed and connected to the inner wall of the fixed steel frame (9); The hydraulic cylinder (7) is connected to the hydraulic pump (10) via a hydraulic oil pipe; The pole steel mold (1) has a limiting groove (11) on the inner side wall at the rear end; The outer wall of the tensioning plate (2) is fixedly connected to a limit ring (21), and the interior of the tensioning plate (2) is provided with a steel bar hole (22) arranged in a circular array. The rear end of the tension rod (3) is fixedly connected to a disc (32), and the disc (32) has two steel bar holes (33) arranged in a circular array inside; The front side of the anchor (5) is provided with a connecting cap (51), and the rear end of the anchor (5) is provided with a threaded hole (52). The end of the tensioning head (6) is provided with a connecting cap (61); There are two foot pedals (8), and the two foot pedals (8) are located on both sides of the tensioning head (6); The fixed steel frame (9) includes a frame body (91), and the top surface of the frame body (91) has two shaft holes (92). The inner wall of each shaft hole (92) is threaded to the outer wall of the lead screw (93). The bottom end of each lead screw (93) is fixedly connected to the top surface of the mounting ring (94). The outer wall of each lead screw (93) is threaded to the inner wall of the rotating handle (95).

2. The tensioning device for a high-strength utility pole as described in claim 1, characterized in that: The outer wall of the limiting ring (21) is movably connected to the inner wall of the limiting groove (11).

3. The tensioning device for a high-strength utility pole as described in claim 1, characterized in that: The threaded hole (52) inside the anchor (5) is threadedly connected to the external threaded tooth (31) of the tension rod (3).

4. The tensioning device for a high-strength utility pole as described in claim 1, characterized in that: The first connecting cap (51) and the second connecting cap (61) are connected by bolts (62).

5. The tensioning device for a high-strength utility pole as described in claim 1, characterized in that: The hydraulic cylinder (7) is mounted inside the frame (91) via two mounting rings (94).

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