Pultrusion connection structure with threaded sleeve coated with glass fiber reinforced plastic
By introducing a cutting seal ring, a front threaded sleeve, and a rear threaded sleeve into the threaded sleeve connection structure, the problem of inconvenient connection and disconnection of threaded sleeves during the fiberglass pultrusion molding process is solved, and convenient connection and disconnection operations are realized.
Patent Information
- Application Number
- CN202520497774.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-20
AI Technical Summary
In the existing technology, the connection and disconnection of threaded sleeves during fiberglass pultrusion molding is relatively inconvenient.
It adopts a structure consisting of a cut-off sealing ring, a front threaded sleeve, and a rear threaded sleeve. The connection and easy disconnection are achieved through a connecting threaded sleeve with threads at both ends.
It enables convenient connection and disconnection of threaded sleeves, improving operational efficiency.
Smart Images

Figure CN223868357U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connection structure technology, and more specifically, to a threaded sleeve-coated fiberglass pultruded connection structure. Background Technology
[0002] Fiberglass pultruded products sometimes require the embedding of core components such as threaded sleeves. For example, when wind turbine blades are pultruded with fiberglass sleeves, the threaded sleeves need to be connected together during pultrusion. After the fiberglass sleeves have cured, they need to be disconnected at the connection point. This method is very inconvenient, as both connection and disconnection are quite troublesome.
[0003] Therefore, there is an urgent need for a threaded sleeve-coated fiberglass pultruded connection structure to solve the above problems. Utility Model Content
[0004] To overcome the aforementioned deficiencies of the prior art, embodiments of this utility model provide a threaded sleeve-coated fiberglass pultruded connection structure. By incorporating a cutting sealing ring, a front threaded sleeve, and a rear threaded sleeve, this utility model achieves connection and easy disconnection using a connecting screw with threads at both ends plus a sealing ring, resulting in better practical performance and solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a threaded sleeve coated with fiberglass pultruded connection structure, including a connecting threaded sleeve, with threaded heads welded to both sides of the connecting threaded sleeve, a hexagonal hole at the end of the threaded head, a front threaded sleeve and a rear threaded sleeve respectively provided on the outer side of the two threaded heads, a cut-off sealing ring provided on the outer side of the connecting threaded sleeve, and the same fiberglass sleeve layer provided on the outer side of the cut-off sealing ring, the front threaded sleeve and the rear threaded sleeve.
[0006] In a preferred embodiment, the front and rear threaded sleeves are threadedly connected to the threaded heads at corresponding positions.
[0007] The technical effects and advantages of this utility model are as follows:
[0008] This utility model, by incorporating a cutting sealing ring, a front threaded sleeve, and a rear threaded sleeve, enables connection and easy disconnection using a connecting threaded sleeve with threads at both ends and a sealing ring, resulting in better practical performance. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0010] The attached diagram is labeled as follows: 1. Connecting threaded sleeve; 2. Threaded head; 3. Hexagonal hole; 4. Front threaded sleeve; 5. Rear threaded sleeve; 6. Cut-off sealing ring; 7. Fiberglass sleeve. Detailed Implementation
[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0012] As attached Figure 1 As shown, this utility model provides a threaded sleeve covered with fiberglass pultruded connection structure, including a connecting threaded sleeve 1. Threaded heads 2 are welded to both sides of the connecting threaded sleeve 1. A hexagonal hole 3 is provided at the end of each threaded head 2. A front threaded sleeve 4 and a rear threaded sleeve 5 are respectively provided on the outer sides of the two threaded heads 2. A cut-off sealing ring 6 is provided on the outer side of the connecting threaded sleeve 1. The same fiberglass sleeve layer 7 is provided on the outer sides of the cut-off sealing ring 6, the front threaded sleeve 4, and the rear threaded sleeve 5.
[0013] The front threaded sleeve 4 and the rear threaded sleeve 5 are respectively threadedly connected to the threaded head 2 at the corresponding positions.
[0014] The specific implementation method is as follows: When using this utility model, an internal hex wrench is inserted into the hexagonal hole 3 and rotated to screw the front threaded sleeve 4 and the rear threaded sleeve 5 onto the connecting threaded sleeve 1. A cutting sealing ring 6 is provided on the connecting threaded sleeve 1. When the fiberglass sleeve layer 7 is broken after curing, the position of the cutting sealing ring 6 is confirmed with a ruler, and then the fiberglass sleeve layer 7 is cut open with a cutting abrasive wheel. This allows this utility model to achieve connection and easy disconnection with a connecting threaded sleeve with threads at both ends and a sealing ring, resulting in a better actual use effect of this utility model.
[0015] Working principle of this utility model:
[0016] Refer to the instruction manual appendix Figure 1 When using this utility model, by providing structures such as a cutting sealing ring 6, a front threaded sleeve 4, and a rear threaded sleeve 5, this utility model achieves connection and easy disconnection with a connecting threaded sleeve with threads at both ends and a sealing ring, resulting in a better actual use effect of this utility model.
[0017] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0018] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0019] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A threaded sleeve-coated fiberglass pultruded connection structure, comprising a connecting threaded sleeve (1), characterized in that: Both sides of the connecting threaded sleeve (1) are welded with threaded heads (2), and the ends of the threaded heads (2) are provided with hexagonal holes (3). The outer sides of the two threaded heads (2) are respectively provided with front threaded sleeves (4) and rear threaded sleeves (5). The outer side of the connecting threaded sleeve (1) is provided with a cutting sealing ring (6). The outer sides of the cutting sealing ring (6), front threaded sleeves (4) and rear threaded sleeves (5) are provided with the same fiberglass sleeve layer (7).
2. The threaded sleeve-coated fiberglass pultruded connection structure according to claim 1, characterized in that: The front threaded sleeve (4) and the rear threaded sleeve (5) are respectively threaded to the corresponding threaded head (2).