Sealing nut for wind power anchor bolt

Abstract

The utility model relates to the technical field of nuts, in particular to a sealing nut for a wind power anchor bolt. The sealing nut for the wind power anchor bolt comprises a nut body, an inserting groove is formed in the top of the nut body, the inserting groove is communicated with a threaded hole of the nut body, the diameter of the inserting groove is larger than that of the threaded hole of the nut body, a first sealing ring is arranged at the bottom of the inserting groove, and a second sealing ring is arranged on the inner side wall of the first sealing ring. The first sealing ring and the second sealing ring are integrally formed and designed; a fixing assembly is placed in the slot; according to the anchor bolt cage, the connecting gap between the nut and the PVC sleeve is sealed through the second sealing ring, the connecting gap between the PVC sleeve and the anchor bolt is sealed through the first sealing ring, and therefore the nut, the anchor bolt and the PVC sleeve can be connected in a sealed mode, and the phenomenon that when concrete is poured into the anchor bolt cage, the nut and the PVC sleeve cannot be tightly connected is avoided. And a small amount of concrete leaks into the connecting gap of the three to influence the anti-corrosion performance.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to a sealing nut for a wind power anchor bolt. Background Technique

[0002] In recent years, under the strong support of the country and policy dividends, China's wind power installed capacity has reached 209.94 GW, ranking first in the world since 2008, and wind power has become the second largest renewable energy in China.

[0003] At present, the anchor bolt cage structure is adopted for the fan foundation. For this structure, not only high strength is required, but also strong anti-corrosion performance is required. In actual application, due to the limitation of the nut structure, there will be gaps when the nut body is matched with the PVC sleeve in the anchor bolt assembly. When pouring concrete into the anchor bolt cage in the later stage of the project, a small amount of concrete will leak into the gap between the nut body and the anchor bolt, reducing the anti-corrosion performance. In view of the above situation, technical innovation is carried out on the basis of the existing nuts for wind power anchor bolts. Content of the Utility Model

[0004] The purpose of the utility model is to provide a sealing nut for a wind power anchor bolt to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A sealing nut for a wind power anchor bolt, comprising:

[0006] A nut, a slot is opened at the top of the nut, the slot is communicated with the threaded hole of the nut, the diameter of the slot is larger than the diameter of the threaded hole of the nut, a first sealing ring is arranged at the bottom of the slot, a second sealing ring is arranged on the inner side wall of the first sealing ring, the first sealing ring and the second sealing ring are integrally formed, wherein; a fixing component is placed inside the slot.

[0007] Preferably, the fixing component includes a spring, a round head pin is arranged at the rear side of the spring, and a bolt is placed at the rear side of the round head pin.

[0008] Preferably, an installation hole is opened at the front side of the inner side wall of the slot of the nut, the spring is fixedly arranged in the installation hole, the round head pin is slidably arranged in the installation hole, a counterbore is opened at the rear side of the nut, the counterbore is communicated with the slot of the nut, and the bolt is arranged in the counterbore.

[0009] Preferably, an anchor bolt is screwed in the threaded hole of the nut, a PVC sleeve is inserted into the slot of the nut, the top of the anchor bolt is inserted into the PVC sleeve, an avoidance groove is penetrated and opened at the bottom of the inner side wall of the PVC sleeve, and the second sealing ring is inserted into the avoidance groove.

[0010] Preferably, the bottom of the PVC sleeve is closely attached to the top of the first sealing ring, the second sealing ring is sleeved on the outer wall of the anchor bolt, and the inner wall of the second sealing ring is closely attached to the outer wall of the anchor bolt.

[0011] Preferably, a jack is provided on the front side of the PVC sleeve, a threaded hole is provided on the rear side of the PVC sleeve, the round head part of the round head pin is inserted into the jack, and the bolt passes through the counterbore of the nut and is screwed into the threaded hole of the PVC sleeve.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the present utility model, the round head pin is driven by a spring to insert into the jack of the PVC sleeve, and then the bolt passes through the counterbore and is screwed into the threaded hole of the PVC sleeve, so that the PVC sleeve can be fixed in the counterbore of the nut, thereby ensuring the strength of the connection and assembly of the nut, the anchor bolt and the PVC sleeve, and improving the stability during the later concrete pouring;

[0014] The connection gap between the nut and the PVC sleeve is sealed by the second sealing ring, and the connection gap between the PVC sleeve and the anchor bolt is sealed by the first sealing ring, so that a sealed connection can be formed among the nut, the anchor bolt and the PVC sleeve, thereby avoiding a small amount of concrete leaking into the connection gap among the three when pouring concrete into the anchor bolt cage and affecting the anti-corrosion performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of a sealing nut for a wind power anchor bolt of the present utility model;

[0016] Figure 2 is a front sectional view of a sealing nut for a wind power anchor bolt of the present utility model;

[0017] Figure 3 For the present utility model Figure 2 is an enlarged view of part A.

[0018] In the figure: 1, nut; 11, anchor bolt; 12, PVC sleeve; 13, spring; 14, round head pin; 15, bolt; 16, first sealing ring; 17, second sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1 - 3 , a sealing nut for a wind power anchor bolt, comprising a nut 1. A slot is opened at the top of the nut 1, and the slot communicates with the threaded hole of the nut 1. The diameter of the slot is larger than the diameter of the threaded hole of the nut 1. A first sealing ring 16 is fixedly arranged at the bottom of the slot. A second sealing ring 17 is fixedly arranged on the inner side wall of the first sealing ring 16. The first sealing ring 16 and the second sealing ring 17 are integrally formed. Among them; a fixing component is placed inside the slot. The fixing component includes a spring 13. A round head pin 14 is fixedly arranged at the rear side of the spring 13. A bolt 15 is placed at the rear side of the round head pin 14. An installation hole is opened at the front side of the inner side wall of the slot of the nut 1. The spring 13 is fixedly arranged in the installation hole. The round head pin 14 is slidably arranged in the installation hole. A counterbore is opened at the rear side of the nut 1, and the counterbore communicates with the slot of the nut 1. The bolt 15 is rotatably arranged in the counterbore. An anchor bolt 11 is screwed into the threaded hole of the nut 1. A PVC sleeve 12 is inserted into the slot of the nut 1. The top of the anchor bolt 11 is inserted into the PVC sleeve 12. An avoidance groove is penetrated and opened at the bottom of the inner side wall of the PVC sleeve 12. The second sealing ring 17 is inserted into the avoidance groove. The bottom of the PVC sleeve 12 is closely attached to the top of the first sealing ring 16. The second sealing ring 17 is sleeved on the outer side wall of the anchor bolt 11, and the inner side wall of the second sealing ring 17 is closely attached to the outer side wall of the anchor bolt 11. The connection gap between the nut 1 and the PVC sleeve 12 is sealed through the second sealing ring 17, and the connection gap between the PVC sleeve 12 and the anchor bolt 11 is sealed through the first sealing ring 16, so that a sealed connection can be formed among the nut 1, the anchor bolt 11 and the PVC sleeve 12, thereby avoiding a small amount of concrete leaking into the connection gap among the three when pouring concrete into the anchor bolt cage and affecting the anti-corrosion performance. An insertion hole is opened at the front side of the PVC sleeve 12, and a threaded hole is opened at the rear side of the PVC sleeve 12. The round head part of the round head pin 14 is inserted into the insertion hole. The bolt 15 passes through the counterbore of the nut 1 and is screwed into the threaded hole of the PVC sleeve 12. The PVC sleeve 12 is inserted into the slot of the nut 1. The spring 13 drives the round head pin 14 to be inserted into the insertion hole of the PVC sleeve 12, so that the threaded hole of the PVC sleeve 12 is aligned with the counterbore of the nut 1. After the bolt 15 passes through the counterbore and is screwed into the threaded hole of the PVC sleeve 12, the PVC sleeve 12 can be fixed in the counterbore of the nut 1. Then the anchor bolt 11 is screwed into the threaded hole of the nut 1 from bottom to top and inserted into the PVC sleeve 12, so as to ensure the strength of the connection and assembly of the nut 1, the anchor bolt 11 and the PVC sleeve 12, thereby improving the stability during the later concrete pouring.

[0021] Working principle: Insert the PVC sleeve 12 into the slot of the nut 1. Drive the round head pin 14 to insert into the jack of the PVC sleeve 12 through the spring 13, so that the threaded hole of the PVC sleeve 12 is aligned with the counterbore of the nut 1. After passing the bolt 15 through the counterbore and screwing it into the threaded hole of the PVC sleeve 12, the PVC sleeve 12 can be fixed in the counterbore of the nut 1. Then screw the anchor bolt 11 into the threaded hole of the nut 1 from bottom to top and insert it into the PVC sleeve 12 to ensure the strength of the connection and assembly of the nut 1, the anchor bolt 11 and the PVC sleeve 12, thereby improving the stability during the later concrete pouring. Seal the connection gap between the nut 1 and the PVC sleeve 12 through the second sealing ring 17, and seal the connection gap between the PVC sleeve 12 and the anchor bolt 11 through the first sealing ring 16, so as to form a sealed connection among the nut 1, the anchor bolt 11 and the PVC sleeve 12, thus avoiding a small amount of concrete leaking into the connection gap among the three when pouring concrete into the anchor bolt cage and affecting the anti-corrosion performance.

Claims

1. A sealing nut for a wind power anchor bolt, characterized in that: include: A nut (1), wherein a slot is provided at the top of the nut (1), the slot is connected to the threaded hole of the nut (1), the diameter of the slot is larger than the diameter of the threaded hole of the nut (1), a first sealing ring (16) is provided at the bottom of the slot, a second sealing ring (17) is provided on the inner side wall of the first sealing ring (16), the first sealing ring (16) and the second sealing ring (17) are integrally formed, wherein a fixing component is placed inside the slot.

2. A sealing nut for wind power anchor bolt according to claim 1, characterized in that: The fixing assembly comprises a spring (13), a round head latch (14) is arranged on the rear side of the spring (13), and a bolt (15) is placed on the rear side of the round head latch (14).

3. A sealing nut for wind power anchor bolt according to claim 2, characterized in that: A mounting hole is provided on the front side of the inner wall of the slot of the nut (1), the spring (13) is fixedly arranged in the mounting hole, the round head pin (14) is slidably arranged in the mounting hole, a countersunk hole is provided on the rear side of the nut (1), the countersunk hole is connected to the slot of the nut (1), and the bolt (15) is arranged in the countersunk hole.

4. A sealing nut for wind power anchor bolt according to claim 3, characterized in that: An anchor bolt (11) is threadedly connected in the threaded hole of the nut (1), a PVC sleeve (12) is inserted in the slot of the nut (1), the top of the anchor bolt (11) is inserted in the PVC sleeve (12), an escape groove is formed through the bottom of the inner wall of the PVC sleeve (12), and the second sealing ring (17) is inserted in the escape groove.

5. The sealing nut for wind power anchor bolt according to claim 4, characterized in that: The bottom of the PVC sleeve (12) is tightly fitted with the top of the first sealing ring (16), the second sealing ring (17) is sleeved on the outer wall of the anchor bolt (11), and the inner wall of the second sealing ring (17) is tightly fitted with the outer wall of the anchor bolt (11).

6. The sealing nut for wind power anchor bolt according to claim 5, characterized in that: The front side of the PVC sleeve (12) is provided with an insertion hole, the rear side of the PVC sleeve (12) is provided with a threaded hole, the round head portion of the round head plug (14) is inserted into the insertion hole, and the bolt (15) passes through the countersunk hole of the nut (1) and is threadedly connected with the threaded hole of the PVC sleeve (12).

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