Prestressed flange

Abstract

The utility model discloses a prestress flange which comprises a first flange, one end of the first flange is coaxially and fixedly connected with a second flange, the outer side of the end, away from the first flange, of the second flange is coaxially and fixedly connected with a first ring body, and a second ring body is coaxially arranged on the inner side of the first ring body; the second ring body is provided with a plurality of first connecting holes in the circumferential direction, the first connecting holes are used for allowing prestressed tendons to penetrate through and preventing upset heads from penetrating through, the second flange is provided with a plurality of first rib penetrating holes used for allowing the prestressed tendons and the upset heads to penetrate through, and the first flange is provided with a plurality of second rib penetrating holes used for allowing the prestressed tendons and the upset heads to penetrate through. According to the utility model, after the prestressed tendon sequentially penetrates through the second tendon penetrating hole, the first tendon penetrating hole and the first connecting hole, the upset head is limited by the first connecting hole and is positioned on the inner side of the first ring body, that is, the prestressed tendon containing the upset head is wrapped by concrete in the process of producing the electric pole, so that the upset head of the prestressed tendon is prevented from being corroded due to exposure.

Description

A prestressed flange Technical Field

[0001] This utility model belongs to the field of pole joint technology, and in particular relates to a prestressed flange. Background Technology

[0002] Currently, prestressed flanges are commonly used for pole joints with large bending moments or high load ratings. The main materials of the pole are prestressed tendons and non-prestressed tendons, with the upset heads of one end of the prestressed tendons anchored to the prestressed flange. The non-prestressed tendons are welded to the inner surface of the steel ring, but the upset heads of the prestressed tendons on the prestressed flange are mostly exposed outside the flange, and will corrode after a period of time. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, this utility model provides a prestressed flange that can prevent the upsetting head of the prestressing tendon from being corroded due to exposure.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A prestressed flange includes a first flange, a second flange coaxially fixedly connected to one end of the first flange, a first ring body coaxially fixedly connected to the outer side of the second flange away from the first flange, and a second ring body coaxially arranged on the inner side of the first ring body.

[0006] The second ring body is provided with several first connecting holes along the circumferential direction for passing through prestressing tendons and preventing the upsetting head from passing through. The second flange is provided with several first through holes for passing through prestressing tendons and upsetting heads. The first flange is provided with several second through holes for passing through prestressing tendons and upsetting heads.

[0007] Among them, the axis of the first connecting hole is parallel to the axis of the second ring body, the axes of several first connecting holes coincide with the axes of several first through holes, and the axes of several first connecting holes coincide with the axes of several second through holes.

[0008] The beneficial effects of adopting the above technical solution are as follows: after the prestressing tendon passes through the second through hole, the first through hole and the first connecting hole in sequence, the upset head is restricted by the first connecting hole and is located inside the first ring body. That is, during the production of the pole, the concrete will wrap the prestressing tendon containing the upset head to prevent the upset head of the prestressing tendon from being corroded due to exposure.

[0009] Furthermore, a third ring is coaxially fixedly connected between the first flange and the second flange.

[0010] Furthermore, the diameter of the first connecting hole is not less than the diameter of the prestressing tendon and is less than the maximum diameter of the upsetting head.

[0011] The beneficial effects of adopting the above technical solution are as follows: this arrangement allows the prestressed tendons to pass through the first connecting hole, while preventing the upsetting head from passing through the first connecting hole.

[0012] Furthermore, the diameter of the first through hole is not less than the maximum diameter of the upsetting head.

[0013] The beneficial effects of adopting the above technical solution are as follows: This arrangement allows both the prestressing tendon and the upsetting head to pass through the first through hole, thereby facilitating the installation of the prestressing tendon and the upsetting head.

[0014] Furthermore, the diameter of the second through hole is not less than the maximum diameter of the upsetting head.

[0015] The beneficial effects of adopting the above technical solution are as follows: This arrangement allows both the prestressing tendon and the upsetting head to pass through the second through hole, thereby facilitating the installation of the prestressing tendon and the upsetting head.

[0016] Furthermore, the first flange is provided with several second connection holes.

[0017] The beneficial effects of adopting the above technical solution are: this configuration facilitates bolting to another pole or other infrastructure using multiple second connection holes on the first flange.

[0018] Furthermore, the second ring is integrally set on the first ring.

[0019] Furthermore, several first reinforcing ribs are evenly arranged circumferentially between the inner side of the first ring body and the upper end face of the second flange.

[0020] The beneficial effects of adopting the above technical solution are: the first reinforcing rib can improve the structural strength and rigidity between the first ring body and the second flange.

[0021] Furthermore, several second reinforcing ribs are evenly arranged circumferentially on the outer side of the third ring body, and the lower and upper ends of the second reinforcing ribs are fixedly connected to the upper end face of the first flange and the lower end face of the second flange, respectively.

[0022] The beneficial effects of adopting the above technical solution are: the second reinforcing rib can improve the structural strength and rigidity between the third ring body, the first flange and the second flange.

[0023] Furthermore, both the first and third rings are steel plate rings.

[0024] The beneficial effects of this utility model are as follows:

[0025] After the prestressing tendon passes through the second through hole, the first through hole, and the first connecting hole in sequence, the upset head is restricted by the first connecting hole and is located inside the first ring. That is, during the production of the pole, the concrete will wrap the prestressing tendon containing the upset head to prevent the upset head of the prestressing tendon from being corroded due to exposure. Attached Figure Description

[0026] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0027] in:

[0028] Figure 1 shows a structural schematic diagram of an embodiment of the present invention;

[0029] Figure 2 shows a schematic cross-sectional view at point AA in Figure 1;

[0030] Figure 3 shows a schematic cross-sectional view of BB in Figure 1;

[0031] Figure 4 shows an installation diagram of this utility model;

[0032] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0033] Figure label:

[0034] 1. First flange; 101. Second connecting hole; 102. Second through hole; 2. Third ring; 3. Second reinforcing rib plate; 4. Second flange; 401. First through hole; 5. First ring; 6. Second ring; 601. First connecting hole; 7. Concrete layer; 8. Prestressed tendon; 9. Upsetting head; 10. First reinforcing rib plate. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings.

[0036] This utility model provides a prestressed flange, as shown in Figures 1-4, which includes a first flange 1, a second flange 4 coaxially fixedly connected to one end of the first flange 1, a first ring body 5 coaxially welded to the outer side of the end of the second flange 4 away from the first flange 1, and a second ring body 6 coaxially arranged on the inner side of the first ring body 5.

[0037] The second ring body 6 is provided with a number of first connecting holes 601 along the circumferential direction for passing through the prestressing tendons 8 and preventing the upsetting head 9 from passing through. The second flange 4 is provided with a number of first tendon-passing holes 401 for passing through the prestressing tendons 8 and the upsetting head 9. The first flange 1 is provided with a number of second tendon-passing holes 102 for passing through the prestressing tendons 8 and the upsetting head 9.

[0038] Among them, the axis of the first connecting hole 601 is parallel to the axis of the second ring body 6, the axes of the plurality of first connecting holes 601 coincide with the axes of the plurality of first through holes 401 respectively, and the axes of the plurality of first connecting holes 601 coincide with the axes of the plurality of second through holes 102 respectively.

[0039] It is understandable that after the prestressing tendon 8 passes through the second through hole 102, the first through hole 401 and the first connecting hole 601 in sequence, the upsetting head 9 is restricted by the first connecting hole 601 and is located inside the first ring body 5. That is, during the production of the pole, the concrete will automatically wrap and seal the prestressing tendon 8 containing the upsetting head 9 to prevent the upsetting head 9 of the prestressing tendon 8 from being exposed and corroded.

[0040] It should be noted that during the production of the utility pole, a concrete layer 7 is generated inside the first ring 5, and the second ring 6 and its limiting upsetting head 9 are naturally located within this concrete layer 7.

[0041] In one embodiment, a third ring body 2 is coaxially fixedly connected between the first flange 1 and the second flange 4.

[0042] Specifically, one end of the third ring body 2 is welded to the first flange 1, and the other end of the third ring body 2 is welded to the second flange 4.

[0043] In one embodiment, the diameter of the first connecting hole 601 is not less than the diameter of the prestressing tendon 8 and less than the maximum diameter of the upsetting head 9, so that the prestressing tendon 8 can pass through the first connecting hole 601 and the upsetting head 9 cannot pass through the first connecting hole 601; the diameter of the first through hole 401 is not less than the maximum diameter of the upsetting head 9, and the diameter of the second through hole 102 is not less than the maximum diameter of the upsetting head 9, so that both the prestressing tendon 8 and the upsetting head 9 can pass through the first through hole 401 and the second through hole 102, thereby facilitating the installation of the prestressing tendon 8 and the upsetting head 9.

[0044] In one embodiment, the first flange 1 is provided with a plurality of second connection holes 101 to facilitate bolting to another pole or other infrastructure using the plurality of second connection holes 101 on the first flange 1.

[0045] It should be noted that a first flange 1 can be bolted to another first flange 1 of a prestressed flange on another pole through their respective second connecting holes 101, so as to facilitate the extension of the pole.

[0046] It should also be noted that, as shown in Figures 1-3, the prestressed flange can be provided with both the second through hole 102 and the second connecting hole 101; as shown in Figure 4, the prestressed flange can also combine the second through hole 102 and the second connecting hole 101 into one, that is, only the second through hole 102 or the second connecting hole 101 is provided. The second through hole 102 and the second connecting hole 101 can pass through the prestressed tendon 8 and the upset head 9, and can also be used to bolt to another pole or other infrastructure.

[0047] In one embodiment, the second ring body 6 is integrally disposed on the first ring body 5.

[0048] In one embodiment, a plurality of first reinforcing ribs 10 are uniformly arranged circumferentially between the inner side of the first ring body 5 and the upper end face of the second flange 4; wherein, the first reinforcing ribs 10 are perpendicular to the inner side of the first ring body 5 and the upper end face of the second flange 4.

[0049] Understandably, the first reinforcing rib 10 can improve the structural strength and rigidity between the first ring body 5 and the second flange 4.

[0050] In one embodiment, a plurality of second reinforcing ribs 3 are uniformly arranged circumferentially on the outer side of the third ring body 2. The lower end and upper end of the second reinforcing ribs 3 are fixedly connected to the upper end face of the first flange 1 and the lower end face of the second flange 4, respectively. The second reinforcing ribs 3 are perpendicular to the outer side of the third ring body 2, the upper end face of the first flange 1 and the lower end face of the second flange 4.

[0051] Understandably, the second reinforcing rib 3 can improve the structural strength and rigidity between the third ring body 2, the first flange 1, and the second flange 4.

[0052] It should be noted that the third ring body 2, the first flange 1, and the second flange 4 are all welded to the second reinforcing rib plate 3.

[0053] In one embodiment, both the first ring 5 and the third ring 2 are steel plate rings.

[0054] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0055] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A prestressed flange, characterized in that, Includes a first flange (1), one end of which is coaxially fixedly connected to a second flange (4), the outer side of the second flange (4) away from the first flange (1) is coaxially fixedly connected to a first ring body (5), and the inner side of the first ring body (5) is coaxially provided with a second ring body (6); the second ring body (6) is provided with a plurality of first connecting holes (601) along the circumferential direction for passing through prestressing tendons (8) and preventing the upsetting head (9) from passing through, and the second flange (4) is provided with a plurality of holes for passing through prestressing tendons (8). 8) and the first through hole (401) of the upsetting head (9), the first flange (1) is provided with a plurality of second through holes (102) for passing through the prestressing tendon (8) and the upsetting head (9); wherein, the axis of the first connecting hole (601) is parallel to the axis of the second ring body (6), the axis of the plurality of first connecting holes (601) coincides with the axis of the plurality of first through holes (401) respectively, and the axis of the plurality of first connecting holes (601) coincides with the axis of the plurality of second through holes (102) respectively.

2. A prestressed flange according to claim 1, characterized in that, A third ring (2) is coaxially fixedly connected between the first flange (1) and the second flange (4).

3. A prestressed flange according to claim 1 or 2, characterized in that, The diameter of the first connecting hole (601) is not less than the diameter of the prestressing tendon (8) and is less than the maximum diameter of the upsetting head (9).

4. A prestressed flange according to claim 1 or 2, characterized in that, The diameter of the first through hole (401) is not less than the maximum diameter of the upsetting head (9).

5. A prestressed flange according to claim 1 or 2, characterized in that, The diameter of the second through hole (102) is not less than the maximum diameter of the upsetting head (9).

6. A prestressed flange according to claim 1 or 2, characterized in that, The first flange (1) is provided with a plurality of second connection holes (101).

7. A prestressed flange according to claim 1 or 2, characterized in that, The second ring (6) is integrally disposed on the first ring (5).

8. A prestressed flange according to claim 1 or 2, characterized in that, A plurality of first reinforcing ribs (10) are uniformly arranged circumferentially between the inner side of the first ring body (5) and the upper end face of the second flange (4).

9. A prestressed flange according to claim 2, characterized in that, The outer side of the third ring (2) is uniformly provided with a number of second reinforcing ribs (3) along the circumferential direction. The lower end and upper end of the second reinforcing ribs (3) are fixedly connected to the upper end face of the first flange (1) and the lower end face of the second flange (4), respectively.

10. A prestressed flange according to claim 2, characterized in that, Both the first ring (5) and the third ring (2) are steel plate rings.

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