Annular concrete pole prestress internal tensioning device

Abstract

The utility model relates to the technical field of concrete electric poles, and discloses an annular concrete electric pole prestress internal tensioning device which comprises an adjusting mechanism, and the right end of the adjusting mechanism is rotationally connected with a tensioning mechanism. According to the annular concrete pole prestress internal tensioning device, a rotating plate rotates to drive an adjusting rod to rotate, a sliding block on the surface of the adjusting rod moves front and back along the adjusting rod, the sliding block moves to drive a mounting ring A to move, the mounting ring A drives a connecting rod A to move, the angle between the connecting rod A and a connecting rod B is changed, and then a tensioning plate is driven to conduct tensioning; the connecting rod A can drive the tensioning plate to move while moving, the angle between the connecting rod C and the supporting rod can be changed through movement of the tensioning plate, then the rear end of the tensioning plate can conduct cooperative tensioning, and the problems that the tensioning structure is complex, the tensioning pressure is concentrated on hinge connection between the connecting rod A and the connecting rod B, damage is prone to occurring, and the tensioning effect is poor are solved. And the whole tensioning structure needs to be dismantled after the tensioning structure is damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete poles, in particular to a prestressed inner tensioning device for an annular concrete pole. Background Art

[0002] Ring-shaped concrete poles are widely used in the power technology sector, particularly as a key component of transmission lines. According to available data, there are two types of concrete poles: conventional reinforced concrete poles and prestressed concrete poles, with the ring-shaped section being the most commonly used. Prestressed concrete structures have been widely used and promoted over the past few decades due to their high strength, rigidity, and durability. Prestressed concrete poles are particularly important in power facilities that must withstand heavy loads or harsh environmental conditions.

[0003] Chinese Patent Authorization Publication No. CN209517135U discloses a prestressed internal tensioning device for an annular concrete pole, comprising a concrete pole with an A-ring and a B-ring disposed therein. The annular prestressed internal tensioning device for annular concrete pole, by adjusting the arrangement of an adjustment assembly and a tensioning assembly, causes the adjustment ring to move while simultaneously changing the angle between the A-link and the B-link. The A-link and the B-link then pull the top plate to contract, which in turn causes the tensioning rod to contract. This contraction of the tensioning rod can then pull the reinforcing steel bars, thereby effectively controlling the tensioning degree of the reinforcing steel bars. Furthermore, when the tensioning range needs to be increased, the insert rod is withdrawn from the interior of the sleeve rod, and a limit bolt is inserted into a limit hole and fixed therein, thereby adjusting the spacing between the A-ring and the B-ring, thereby expanding the tensioning range and making the pulling force distribution more uniform.

[0004] However, the tensioning structure of the above device is relatively complex, and the tensioning pressure is concentrated on the hinge connection between the A-link and the B-link, which is prone to damage. Moreover, when damaged, the entire tensioning structure needs to be dismantled to repair it. Therefore, there is an urgent need for a prestressed internal tensioning device for an annular concrete pole. Utility Model Content

[0005] The purpose of the utility model is to provide a prestressed inner tensioning device for an annular concrete pole to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a prestressed internal tensioning device for an annular concrete pole, comprising an adjusting mechanism, wherein the right end of the adjusting mechanism is rotatably connected to a tensioning mechanism;

[0007] The adjustment mechanism includes an adjustment rod, the surface of which is provided with a thread, the surface of which is threadedly connected to a slider, the surface of which is fixedly connected to a mounting ring A, the surface of which is fixedly connected to a mounting block A, and the upper and lower sides of the mounting block A are hingedly connected to a connecting rod A;

[0008] The tensioning mechanism includes a support rod, the left end surface of the support rod is fixedly connected to a mounting ring B, the surface of the mounting ring B is provided with a mounting block B, the upper and lower sides of the mounting block B are hinged to the connecting rod B, the outer side of the connecting rod B is hinged to a tensioning plate, the upper end of the tensioning plate is fixedly connected to the tensioning rod, the upper end of the tensioning rod is fixedly connected to the tensioning ring, the right end of the surface of the support rod is fixedly connected to a mounting ring C, the surface of the mounting ring C is fixedly connected to a mounting block C, and the upper and lower sides of the mounting block C are hinged to the connecting rod C.

[0009] The left and right movement of the slider will increase or decrease the base of the isosceles triangle formed by the connecting rod A, the connecting rod B and the adjusting rod, and reduce or increase the height of the isosceles triangle formed by the connecting rod A, the connecting rod B and the adjusting rod, thereby driving the tensioning plate to tension it.

[0010] Preferably, the connecting rod A is hinged to the left end of the tensioning plate, and the connecting rod C is hinged to the right end of the tensioning plate.

[0011] The movement of the slider reduces the angle between connecting rod A and connecting rod B while moving the tensioning plate. The movement of the tensioning plate increases the angle between connecting rod C and the adjusting rod and keeps it parallel to connecting rod B, so that the right and left ends of the tensioning plate maintain coordinated tensioning.

[0012] Preferably, the tensioning plate is a T-shaped tensioning plate, and twelve tensioning rods are provided. The twelve tensioning rods are respectively fixedly connected to the left end and the right end of the outer surface of the tensioning plate in groups of two.

[0013] Preferably, a slot is provided at the left end of the support rod, an inner wall of the slot is fixedly connected to a bearing, and the right end of the adjustment rod is fixedly connected to the inner wall of the bearing.

[0014] Preferably, six mounting blocks A are provided, and the six mounting blocks A are distributed in a circular array around the surface of the mounting ring A; six mounting blocks B are provided, and the six mounting blocks B are distributed in a circular array around the surface of the mounting ring B; six mounting blocks C are provided, and the six mounting blocks C are distributed in a circular array around the surface of the mounting ring C.

[0015] Preferably, six connecting rods A are provided, and the six connecting rods A are distributed in a circular array around the surface of the mounting ring A; six connecting rods B are provided, and the six connecting rods B are distributed in a circular array around the surface of the mounting ring B; six connecting rods C are provided, and the six connecting rods C are distributed in a circular array around the surface of the mounting ring C.

[0016] Preferably, the left end of the adjusting rod is fixedly connected with a square block, the left end of the surface of the adjusting rod is fixedly connected with a clamping ring, the left end of the adjusting rod is clamped with a rotating plate, and the side of the rotating plate is clamped with a concrete pole.

[0017] The setting of the retaining ring is used to limit the position of the slider to avoid a negative angle between the connecting rod A and the connecting rod B, which will cause the equipment to be unable to perform tensioning.

[0018] Preferably, a square slot is provided on the inner side of the rotating plate, a protrusion is fixedly connected to the outer side of the rotating plate, and a slot is provided on the left end of the concrete pole.

[0019] The rotating plate is fixed through the slot of the concrete pole, and the adjusting rod is fixed through the square slot inside the rotating plate, so that the tensioning mechanism is fixed when the inner tensioning is completed.

[0020] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0021] First, the utility model drives the rotating plate to rotate by rotating the handle on the rotating plate, and the rotation of the rotating plate drives the adjusting rod to rotate, so that the slider on the surface of the adjusting rod moves back and forth along the adjusting rod, and the movement of the slider drives the mounting ring A to move, and the mounting ring A drives the connecting rod A to move, so that the angle between the connecting rod A and the connecting rod B changes, thereby driving the tensioning plate to tension, and at the same time as the connecting rod A moves, it will drive the tensioning plate to move, and the movement of the tensioning plate will change the angle between the connecting rod C and the support rod, so that the rear end of the tensioning plate can also be tensioned cooperatively, and a bearing is provided in the groove at the left end of the support rod, which is rotatably connected to the adjusting rod, so that the adjusting rod will not drive the support rod to rotate while rotating, which solves the problem that the tensioning structure is relatively complex, the tensioning pressure is concentrated on the hinge connection between the connecting rod A and the connecting rod B, which is easy to be damaged, and when it is damaged, the entire tensioning structure needs to be dismantled for repair.

[0022] Second, when the prestressed internal tensioning of the concrete pole is completed, the utility model fixes the turn plate by pushing the block at the left end of the turn plate into the slot at the left end of the concrete pole. The square slot on the inside of the turn plate fixes the adjusting rod, solving the problem that the turn plate cannot be fixed after the tensioning is completed, and the tensioning effect will be ineffective when the steel bar rebounds. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0024] Figure 2 This is a side structural diagram of the utility model;

[0025] Figure 3 This is a schematic diagram of the adjustment structure of the utility model;

[0026] Figure 4 This is a schematic diagram of the tensioning structure of the utility model.

[0027] Figure 5 This is a schematic diagram of the concrete pole structure of the utility model.

[0028] Among them: 1. Turntable; 2. Adjustment mechanism; 3. Tensioning mechanism; 4. Tensioning plate; 5. Tensioning rod; 6. Support rod; 7. Snap ring; 8. Connecting rod A; 9. Mounting ring C; 10. Slider; 11. Mounting ring A; 12. Mounting ring B; 13. Connecting rod C; 14. Connecting rod B; 15. Mounting block A; 16. Bearing; 17. Adjustment rod; 18. Tensioning ring; 19. Mounting block B; 20. Mounting block C; 21. Concrete pole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] The utility model provides the following technical solutions:

[0031] Example 1

[0032] See also Figure 1 、 Figure 2 、 Figure 3 , Figure 4 A prestressed internal tensioning device for an annular concrete pole, comprising an adjusting mechanism 2, the right end of which is rotatably connected to a tensioning mechanism 3;

[0033] The adjustment mechanism 2 includes an adjustment rod 17, the surface of which is provided with a thread, the surface of which is threadedly connected to a slider 10, the surface of which is fixedly connected to a mounting ring A11, the surface of which is fixedly connected to a mounting block A15, and the upper and lower sides of the mounting block A15 are hingedly connected to a connecting rod A8;

[0034] The tensioning mechanism 3 includes a support rod 6, the left end surface of the support rod 6 is fixedly connected to a mounting ring B12, the surface of the mounting ring B12 is provided with a mounting block B19, the upper and lower sides of the mounting block B19 are hingedly connected to a connecting rod B14, the outer side of the connecting rod B14 is hingedly connected to a tensioning plate 4, the upper end of the tensioning plate 4 is fixedly connected to a tensioning rod 5, the upper end of the tensioning rod 5 is fixedly connected to a tensioning ring 18, the right end of the surface of the support rod 6 is fixedly connected to a mounting ring C9, the surface of the mounting ring C9 is fixedly connected to a mounting block C20, and the upper and lower sides of the mounting block C20 are hingedly connected to a connecting rod C13.

[0035] The connecting rod A8 is hinged to the left end of the tensioning plate 4, and the connecting rod C13 is hinged to the right end of the tensioning plate 4.

[0036] The tensioning plate 4 is a T-shaped tensioning plate 4 , and twelve tensioning rods 5 are provided. The twelve tensioning rods 5 are fixedly connected to the left end and the right end of the outer surface of the tensioning plate 4 in groups of two.

[0037] A slot is formed at the left end of the support rod 6 , the inner wall of the slot is fixedly connected to a bearing 16 , and the right end of the adjustment rod 17 is fixedly connected to the inner wall of the bearing 16 .

[0038] There are six mounting blocks A15, which are distributed in a circular array around the surface of the mounting ring A11; there are six mounting blocks B19, which are distributed in a circular array around the surface of the mounting ring B12; there are six mounting blocks C20, which are distributed in a circular array around the surface of the mounting ring C9.

[0039] There are six connecting rods A8, which are distributed in a circular array around the surface of the mounting ring A11; there are six connecting rods B14, which are distributed in a circular array around the surface of the mounting ring B12; there are six connecting rods C13, which are distributed in a circular array around the surface of the mounting ring C9.

[0040] By the above technical solution, the handle on the rotating plate 1 is rotated to drive the rotating plate 1 to rotate, and the rotation of the rotating plate 1 drives the adjusting rod 17 to rotate, so that the slider 10 on the surface of the adjusting rod 17 moves back and forth along the adjusting rod 17, and the movement of the slider 10 drives the mounting ring A15 to move, and the mounting ring A15 drives the connecting rod A8 to move, so that the angle between the connecting rod A8 and the connecting rod B14 changes, thereby driving the tensioning plate 4 to tension, and at the same time as the connecting rod A8 moves, it will drive the tensioning plate 4 to move, and the movement of the tensioning plate 4 will change the angle between the connecting rod C13 and the support rod 6, so that the rear end of the tensioning plate 4 can also be tensioned in coordination, and a bearing 16 is provided in the groove at the left end of the support rod 6, and the bearing 16 is rotatably connected to the adjusting rod 17, so that the adjusting rod 17 will not drive the support rod 6 to rotate when it rotates, which solves the problem that the tensioning structure is relatively complex, the tensioning pressure is concentrated on the hinge connection between the A connecting rod and the B connecting rod, which is easy to be damaged, and the entire tensioning structure needs to be dismantled for repair after damage.

[0041] Example 2

[0042] See also Figure 1 、 Figure 5 , and on the basis of Example 1, it is further obtained that: the left end of the adjusting rod 17 is fixedly connected to a square block, the left end of the surface of the adjusting rod 17 is fixedly connected to a clamping ring 7, the left end of the adjusting rod 17 is clamped to a rotating plate 1, and the side of the rotating plate 1 is clamped to a concrete pole 21.

[0043] A square slot is provided on the inner side of the rotating plate 1 , a protrusion is fixedly connected to the outer side of the rotating plate 1 , and a slot is provided on the left end of the concrete pole 21 .

[0044] Through the above technical solution, when the prestressed internal tensioning of the concrete pole 21 is completed, the turn plate 1 is fixed by pushing the left end of the turn plate 1 into the slot at the left end of the concrete pole 21. The square slot on the inside of the turn plate 1 fixes the adjusting rod 17, which solves the problem that the turn plate cannot be fixed after the tensioning is completed, and the tensioning effect will be ineffective when the steel bar rebounds.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit thereof, and the scope is defined by the appended claims and their equivalents.

Claims

1. A prestressed internal tensioning device for an annular concrete pole, comprising an adjusting mechanism (2), characterized in that: The right end of the adjusting mechanism (2) is rotatably connected to a tensioning mechanism (3); The adjusting mechanism (2) comprises an adjusting rod (17), a surface of the adjusting rod (17) is provided with a thread, a surface of the adjusting rod (17) is threadedly connected to a slider (10), a surface of the slider (10) is fixedly connected to a mounting ring A (11), a surface of the mounting ring A (11) is fixedly connected to a mounting block A (15), and upper and lower sides of the mounting block A (15) are hingedly connected to a connecting rod A (8); The tensioning mechanism (3) includes a support rod (6), the left end surface of the support rod (6) is fixedly connected to a mounting ring B (12), the surface of the mounting ring B (12) is provided with a mounting block B (19), the upper and lower sides of the mounting block B (19) are hinged to the connecting rod B (14), the outer side of the connecting rod B (14) is hinged to a tensioning plate (4), the upper end of the tensioning plate (4) is fixedly connected to a tensioning rod (5), the upper end of the tensioning rod (5) is fixedly connected to a tensioning ring (18), the right end of the surface of the support rod (6) is fixedly connected to a mounting ring C (9), the surface of the mounting ring C (9) is fixedly connected to a mounting block C (20), and the upper and lower sides of the mounting block C (20) are hinged to the connecting rod C (13).

2. The annular concrete pole prestressed internal tensioning device according to claim 1, characterized in that: The connecting rod A (8) is hingedly connected to the left end of the tensioning plate (4), and the connecting rod C (13) is hingedly connected to the right end of the tensioning plate (4).

3. The annular concrete pole prestressed internal tensioning device according to claim 1, characterized in that: The tensioning plate (4) is a T-shaped tensioning plate (4), and twelve tensioning rods (5) are provided. The twelve tensioning rods (5) are respectively fixedly connected to the left end and the right end of the outer surface of the tensioning plate (4) in groups of two.

4. The annular concrete pole prestressed internal tensioning device according to claim 1, characterized in that: The left end of the support rod (6) is provided with a slot, the inner wall of the slot is fixedly connected to a bearing (16), and the right end of the adjustment rod (17) is fixedly connected to the inner wall of the bearing (16).

5. The annular concrete pole prestressed internal tensioning device according to claim 1, characterized in that: Six mounting blocks A (15) are provided, and the six mounting blocks A (15) are distributed in a circumferential array around the surface of the mounting ring A (11); six mounting blocks B (19) are provided, and the six mounting blocks B (19) are distributed in a circumferential array around the surface of the mounting ring B (12); six mounting blocks C (20) are provided, and the six mounting blocks C (20) are distributed in a circumferential array around the surface of the mounting ring C (9).

6. The annular concrete pole prestressed internal tensioning device according to claim 1, characterized in that: There are six connecting rods A (8), and the six connecting rods A (8) are distributed in a circular array around the surface of the mounting ring A (11); there are six connecting rods B (14), and the six connecting rods B (14) are distributed in a circular array around the surface of the mounting ring B (12); there are six connecting rods C (13), and the six connecting rods C (13) are distributed in a circular array around the surface of the mounting ring C (9).

7. The annular concrete pole prestressed internal tensioning device according to claim 1, characterized in that: The left end of the adjusting rod (17) is fixedly connected to a square clamping block, the left end of the surface of the adjusting rod (17) is fixedly connected to a clamping ring (7), the left end of the adjusting rod (17) is clamped to a rotating plate (1), and the side of the rotating plate (1) is clamped to a concrete pole (21).

8. The annular concrete pole prestressed internal tensioning device according to claim 7, characterized in that: A square slot is provided on the inner side of the rotating plate (1), a protrusion is fixedly connected to the outer side of the rotating plate (1), and a slot is provided on the left end of the concrete pole (21).

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