Prestressed steel strand end anchorage device sheath
By designing the anchor sheath at the end of the prestressed steel strand wire, the external force damage and corrosion problems caused by exposed steel strand wire and anchor during the construction of large-span photovoltaic brackets are solved, effectively protecting the steel strand wire and anchors, and improving the quality and durability of the project.
Patent Information
- Application Number
- CN202420890537.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-04-26
AI Technical Summary
In the prestressed tensioning construction of large-span photovoltaic brackets, the steel strands and anchors are exposed outdoors and are susceptible to external forces and corrosion by rain and snow, affecting the quality and durability of the project.
A prestressed steel strand end anchor sheath is designed, including a first sleeve and a second sleeve, to provide protection by fitting the steel strand and anchor, reducing external force damage and rain and snow corrosion.
It effectively protects steel strands and anchors, reduces external force damage and rain and snow corrosion, and improves the quality of the project and the durability of large-span photovoltaic brackets.
Smart Images
Figure CN222822689U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel strand protection devices, in particular to a prestressed steel strand end anchor sheath. Background Art
[0002] With the continuous increase in the capacity of national photovoltaic power stations and the introduction of relevant land and forestry policies, land resources with good sunshine, flat terrain and good construction conditions are becoming increasingly scarce. Photovoltaic power stations built on steep slopes such as mountains will become one of the important photovoltaic power station models in the future.
[0003] Large-span photovoltaic brackets have significant advantages such as large span, strong terrain adaptability, and land saving, and have broad application prospects. Prestressed tensioning construction is a key process for the installation of large-span photovoltaic engineering brackets in complex terrain, and prestressed tensioning quality control has become a top priority.
[0004] However, in actual engineering construction, after the prestressing of large-span photovoltaic brackets is completed, the steel strands and anchors are exposed to the outdoor environment. The lack of protective measures can easily lead to the steel strands and anchors being damaged by external forces and corroded by rain and snow, making it difficult to ensure the quality of engineering construction, affecting the durability of large-span photovoltaic brackets. Utility Model Content
[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a prestressed steel strand end anchor sheath, which can protect the steel strand and the anchor, reduce external force damage and rain and snow corrosion to the steel strand and the anchor, improve project quality, and enhance the durability of large-span photovoltaic brackets.
[0006] The utility model provides a prestressed steel strand end anchor sheath, comprising:
[0007] A first sleeve, used for sleeved on the steel strand;
[0008] The second sleeve is arranged at one end of the first sleeve, and the second sleeve is coaxially arranged with the first sleeve. The second sleeve includes two first arc-shaped plates, the two first arc-shaped plates are arranged opposite to each other, the two first arc-shaped plates are detachably connected, the two first arc-shaped plates are fixedly connected to the first sleeve, and the space enclosed by the two first arc-shaped plates is used to be mounted on the anchor.
[0009] Preferably, ear plates are provided on both sides of the outer wall of the first arc-shaped plate, the ear plates are fixedly connected to the first arc-shaped plate, and two opposite ear plates on the two first arc-shaped plates are connected by fasteners.
[0010] Preferably, the first sleeve includes two second arc-shaped plates, the two second arc-shaped plates are arranged opposite to each other, each second arc-shaped plate corresponds to a first arc-shaped plate, and each second arc-shaped plate is fixedly connected to the corresponding first arc-shaped plate.
[0011] Preferably, a connecting plate is provided between the second arc plate and the first arc plate, the connecting plate is configured as a fan ring, an outer peripheral surface of the connecting plate is fixedly connected to the first arc plate, and an inner peripheral surface of the connecting plate is fixedly connected to the second arc plate.
[0012] Preferably, the first sleeve is configured to be conical, and the inner diameter of an end of the first sleeve away from the second sleeve is smaller than the inner diameter of an end of the first sleeve close to the second sleeve.
[0013] Preferably, the inner diameter of the end of the first sleeve away from the second sleeve is 16-17 mm, and the inner diameter of the end of the first sleeve close to the second sleeve is 18-20 mm.
[0014] Preferably, the length of the first sleeve is 160-180 mm, and the wall thickness of the first sleeve is 2-3 mm.
[0015] Preferably, the length of the second sleeve is 80-100 mm, and the wall thickness of the second sleeve is 1.5-2 mm.
[0016] Preferably, the first sleeve and the second sleeve are both made of galvanized steel pipe or plastic pipe.
[0017] Compared with the prior art, the prestressed steel strand end anchor sheath provided by the utility model has the following beneficial effects:
[0018] 1. The utility model is connected by setting a first sleeve and a second sleeve. When in use, the first sleeve is sleeved on the steel strand to protect the steel strand, and the second sleeve is sleeved on the anchor to protect the anchor. The prestressed steel strand and the anchor are protected to reduce external force damage, and the problem of steel strand and anchor being directly exposed to the outdoor environment and easily corroded by rain and snow and failing can be reduced, thereby improving the project quality and extending the design service life.
[0019] 2. The second sleeve of the utility model includes two first arc-shaped plates, and the second sleeve includes two second arc-shaped plates. Ear plates are arranged on both sides of the first arc-shaped plates. The two ear plates are connected by fasteners to facilitate adjustment of the clamping force on the anchor and the steel strand, thereby avoiding movement of the first sleeve and the second sleeve due to external force and enhancing the protective effect.
[0020] 3. The first sleeve of the utility model is set to a cone shape, which can increase the friction between the first sleeve and the steel strand and prevent the first sleeve and the second sleeve from falling off. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0022] Figure 2 It is the front view of the utility model.
[0023] Description of reference numerals:
[0024] 1. Second sleeve; 2. Ear plate; 3. Fastener; 4. First sleeve. DETAILED DESCRIPTION
[0025] The following is combined with Figure 1 to Figure 2 , the specific implementation methods of the utility model are described in detail, but it should be understood that the protection scope of the utility model is not limited by the specific implementation methods.
[0026] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0027] In addition, in the description of this application, "plurality" means two or more than two. The terms "first" and "second" are used for descriptive purposes only and should not be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the feature.
[0028] Example 1
[0029] The prestressed steel strand end anchor sheath provided in this embodiment is as follows: Figure 1 As shown, it includes a first sleeve 4 and a second sleeve 1.
[0030] The first sleeve 4 is used to be sleeved on the steel strand, and the inner diameter of the first sleeve 4 matches the outer diameter of the steel strand. The second sleeve 1 is arranged at one end of the first sleeve 4, the second sleeve 1 is coaxially arranged with the first sleeve 4, the second sleeve 1 is fixedly connected with the first sleeve 4, and the second sleeve 1 is used to be sleeved on the anchor, and the inner diameter of the second sleeve 1 matches the outer diameter of the anchor.
[0031] Specifically, the shape of the inner wall of the second sleeve 1 is matched with the shape of the anchor, such as Figure 1 As shown, in this embodiment, the inner wall shape of the second sleeve 1 is set to a hexagonal sleeve. The first sleeve 4 and the steel strand form a tight fit to prevent rainwater from entering the gap between the first sleeve 4 and the steel strand. The second sleeve 1 and the anchor form a tight fit to prevent rainwater from entering the gap between the second sleeve 1 and the anchor, thereby reducing the rust of the anchor and the steel strand. At the same time, the protection of the first sleeve 4 and the second sleeve 1 can reduce the damage to the anchor caused by external forces such as outdoor wind, sand and falling rocks.
[0032] When in use, after the on-site prestressing tensioning construction is completed, the sheath is put on from the end of the steel strand, the first sleeve 4 and the second sleeve 1 are moved, and the second sleeve 1 is put on the anchor. Under the action of friction, the positions of the first sleeve 4 and the second sleeve 1 are fixed to protect the steel strand and the anchor.
[0033] In order to prevent the sheath from falling off or moving and to improve the protective effect, the first sleeve 4 is set to be conical, and the inner diameter of the end of the first sleeve 4 away from the second sleeve 1 is smaller than the inner diameter of the end of the first sleeve 4 close to the second sleeve 1. The friction between the device and the steel strand can be increased to prevent the device from falling off.
[0034] In this embodiment, the inner diameter of the end of the first sleeve 4 away from the second sleeve 1 is 16-17 mm, preferably 16 mm, and the inner diameter of the end of the first sleeve 4 close to the second sleeve 1 is 18-20 mm, preferably 18 mm.
[0035] In order to stably sleeve the first sleeve 4 on the steel strand, the length of the first sleeve 4 is 160-180 mm, and the wall thickness of the first sleeve 4 is 2-3 mm. In this embodiment, the length of the first sleeve 4 is preferably 160 mm, and the wall thickness of the first sleeve 4 is 2 mm.
[0036] In order to stably fit the second sleeve 1 on the anchor, the length of the second sleeve 1 is 80-100 mm, and the wall thickness of the second sleeve 1 is 1.5-2 mm. In this embodiment, the length of the second sleeve 1 is preferably 80 mm, and the wall thickness of the second sleeve 1 is 1.5 mm.
[0037] In this embodiment, the inner diameter of the second sleeve 1 is 60-65 mm, preferably 60 mm.
[0038] In this embodiment, both the first sleeve 4 and the second sleeve 1 are made of galvanized steel pipe or plastic pipe, preferably galvanized steel pipe, which has higher strength, better protection effect, better corrosion resistance, and further reduces rusting of anchors and steel strands.
[0039] In order to achieve fixation between the first sleeve 4 and the second sleeve 1, a connecting ring is arranged between the first sleeve 4 and the second sleeve 1, the outer diameter of the connecting ring matches the inner diameter of the first sleeve 4, the inner diameter of the connecting ring matches the outer diameter of the second sleeve 1, the central axis of the connecting ring coincides with the central axis of the first sleeve 4 or the second sleeve 1, the outer circumferential surface of the connecting ring is integrally connected to the inner circumferential surface of the first sleeve 4, and the inner circumferential surface of the connecting ring is integrally connected to the outer circumferential surface of the second sleeve 1, so as to enhance the protective strength of the overall structure.
[0040] How to use this embodiment
[0041] The prestressed steel strand end anchor sheath provided in the present embodiment, after the on-site prestressed tensioning construction of the steel strand is completed, the first sleeve 4 and the second sleeve 1 are sleeved on the steel strand, and the first sleeve 4 and the second sleeve 1 are moved until the second sleeve 1 is sleeved on the anchor, the inner wall shape of the second sleeve 1 matches the shape of the anchor, and under the action of friction, the position of the second sleeve 1 can be limited. At the same time, the first sleeve 4 is set to be conical, which can increase the friction between the first sleeve 4 and the steel strand, and can fix the first sleeve 4 and the second sleeve 1, so that the first sleeve 4 and the second sleeve 1 play a protective role on the steel strand and the anchor.
[0042] Example 2
[0043] On the basis of Example 1, in order to increase the friction between the second sleeve 1 and the anchor and prevent the second sleeve 1 from moving or falling off, and further improve the protection effect, the second sleeve 1 includes two first arc-shaped plates, the two first arc-shaped plates are arranged opposite to each other, the shapes of the opposite surfaces of the two first arc-shaped plates match the side shape of the anchor, and the two first arc-shaped plates are detachably connected.
[0044] In order to make the two first curved plates clamp the anchor, further reduce the gap between the first curved plates and the anchor, and prevent rain and snow from entering, ear plates 2 are provided on both sides of the outer wall of the first curved plate, and the ear plates 2 are fixedly connected to the first curved plates, and the two opposite ear plates 2 on the two first curved plates are connected by fasteners 3. In this embodiment, through holes are provided on the ear plates 2, and the through holes are used to penetrate bolts. The two opposite ear plates 2 are connected by bolts penetrated in the through holes. When in use, the two ear plates 2 are connected tightly by bolts, so that the two first curved plates hold the anchor tightly.
[0045] To facilitate the installation of the first sleeve 4, the first sleeve 4 includes two second arc-shaped plates, the cross-sections of the two second arc-shaped plates are both arc-shaped, the two second arc-shaped plates are arranged opposite to each other, each second arc-shaped plate corresponds to a first arc-shaped plate, and each second arc-shaped plate is fixedly connected to the corresponding first arc-shaped plate.
[0046] A connecting plate is provided at one end of the first arc plate. The connecting plate is in the shape of a sector ring. The center of the sector ring coincides with the central axis of the first sleeve 4. The outer circumference of the connecting plate is integrally connected to the first arc plate, and the inner circumference of the connecting plate is integrally connected to the second arc plate.
[0047] How to use this embodiment
[0048] The anchor sheath provided in this embodiment, when in use, has two first arc-shaped plates relatively buckled on the anchor, and two second arc-shaped plates relatively buckled on the steel strand connected to one side of the anchor, the ear plates 2 on the two first arc-shaped plates are relatively opposite, and the through holes are relatively opposite, and the two ear plates 2 are connected and locked by bolts, so that the two first arc-shaped plates are fixed to the anchor, and the locking force of the bolts is used to prevent the second sleeve 1 from moving or falling off, thereby further improving the protection effect.
[0049] The above disclosure is only a preferred specific embodiment of the present invention, but the embodiments of the present invention are not limited thereto, and any changes that can be conceived by technicians in this field should fall within the protection scope of the present invention.
Claims
1. A prestressed steel strand end anchor sheath, characterized in that: include: A first sleeve (4) is used to be sleeved on the steel strand; The second sleeve (1) is arranged at one end of the first sleeve (4), the second sleeve (1) is coaxially arranged with the first sleeve (4), and the second sleeve (1) comprises two first arc-shaped plates, the two first arc-shaped plates are arranged opposite to each other, the two first arc-shaped plates are detachably connected, the two first arc-shaped plates are fixedly connected to the first sleeve (4), and the space enclosed by the two first arc-shaped plates is used to be mounted on the anchor.
2. The prestressed steel strand end anchor sheath as claimed in claim 1, characterized in that: Ear plates (2) are provided on both sides of the outer wall of the first arc-shaped plate. The ear plates (2) are fixedly connected to the first arc-shaped plate. Two opposite ear plates (2) on the two first arc-shaped plates are connected by fasteners (3).
3. The prestressed steel strand end anchor sheath as claimed in claim 1, characterized in that: The first sleeve (4) comprises two second arc-shaped plates, the two second arc-shaped plates are arranged opposite to each other, each second arc-shaped plate corresponds to a first arc-shaped plate, and each second arc-shaped plate is fixedly connected to the corresponding first arc-shaped plate.
4. The prestressed steel strand end anchor sheath as claimed in claim 3, characterized in that: A connecting plate is arranged between the second arc plate and the first arc plate, and the connecting plate is arranged in a fan-shaped shape, the center of the fan-shaped shape coincides with the central axis of the second arc plate or the first arc plate, the outer peripheral surface of the connecting plate is fixedly connected to the first arc plate, and the inner peripheral surface of the connecting plate is fixedly connected to the second arc plate.
5. The prestressed steel strand end anchor sheath as claimed in claim 1, characterized in that: The first sleeve (4) is configured to be conical, and the inner diameter of an end of the first sleeve (4) away from the second sleeve (1) is smaller than the inner diameter of an end of the first sleeve (4) close to the second sleeve (1).
6. The prestressed steel strand end anchor sheath as claimed in claim 5, characterized in that: The inner diameter of the end of the first sleeve (4) away from the second sleeve (1) is 16-17 mm, and the inner diameter of the end of the first sleeve (4) close to the second sleeve (1) is 18-20 mm.
7. The prestressed steel strand end anchor sheath as claimed in claim 1, characterized in that: The length of the first sleeve (4) is 160-180 mm, and the wall thickness of the first sleeve (4) is 2-3 mm.
8. The prestressed steel strand end anchor sheath as claimed in claim 1, characterized in that: The length of the second sleeve (1) is 80-100 mm, and the wall thickness of the second sleeve (1) is 1.5-2 mm.
9. The prestressed steel strand end anchor sheath as claimed in claim 1, characterized in that: The first sleeve (4) and the second sleeve (1) are both made of galvanized steel pipe or plastic pipe.