一种可调节长度的隔热密封穿墙螺杆套管结构
By designing an adjustable-length, insulated, sealed through-wall bolt sleeve, using insulated plastic materials and reinforcement, combined with end sealing caps and elastic sealing rings, the problems of sleeve material waste and grout leakage are solved, improving construction efficiency and external wall insulation performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA MCC17 GRP CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-17
Smart Images

Figure CN224514749U_ABST
Abstract
Claims
1. An adjustable length thermally sealed through-the-wall screw- pipe sleeve structure, characterized by: Includes the main sleeve (1) and the end sealing cap (4); The main sleeve (1) is made of heat-insulating plastic and has a reinforcing part (2) distributed circumferentially along the axis of the main sleeve (1) on its outer wall; an internal thread (3) is provided inside the main sleeve (1) and an external thread (5) is provided outside the end sealing cap (4), with the internal thread (3) and the external thread (5) being compatible; A sealing structure is installed on the end sealing cap (4), which is used to connect with the template (100); The end sealing cap (4) has an installation hole (41) for installing the through-wall screw (9). An elastic external support (6) is installed inside the main sleeve (1) for moving and abutting against the end sealing cap (4) installed inside the main sleeve (1).
2. An adjustable length, thermally insulated sealed through-the-wall screw pipe sleeve structure according to claim 1, characterized in that: The reinforcing part (2) includes strip blocks (21), and multiple sets of strip blocks (21) are provided, with the length direction parallel to the central axis of the main sleeve (1); the exterior of each set of strip blocks (21) is inclined, and it is inclined downward from the middle to both sides.
3. An adjustable length, thermally insulated sealed through-the-wall screw pipe sleeve construction according to claim 2, characterized in that: The end sealing cap (4) includes a flange (42) and a sealing structure is provided on the flange (42); The sealing structure includes an annular sealing groove (7) and an elastic sealing ring (8) embedded in the groove, with the opening of the annular sealing groove (7) facing the concrete pouring side.
4. An adjustable length, thermally insulated sealed through-the-wall screw pipe sleeve construction according to claim 3, characterized in that: The main sleeve (1) is made of glass fiber reinforced polypropylene or rigid polyurethane material.
5. An adjustable length, thermally insulated sealed wall-penetrating screw- conduit structure according to claim 1, characterized in that: The end sealing cap (4) includes a conical part (43) and a stepped part (44). The conical part (43) has a smaller diameter from the inside to the outside. The stepped part (44) is used to engage with the position hole of the through-wall screw (9) of the template (100), and the sealing structure is located on the stepped part (44). The elastic sealing ring (8) is sealed and abuts against the template (100) upward.
6. An adjustable length, thermally insulated sealed wall-penetrating screw conduit structure according to claim 1, characterized in that: An installation cavity (11) and a plug groove (12) are provided inside the main sleeve (1), and the installation cavity (11) and the plug groove (12) are connected. The elastic outer support (6) includes an outer cover (61), one end of which is installed in the insertion groove (12); the other end of which extends out of the main sleeve (1) and abuts against the inner wall of the template (100). The mounting cavity (11) is equipped with a bidirectional spring (62) and a push ring (63). The push ring (63) is provided in two sets and is fixedly installed at both ends of the bidirectional spring (62). The side of the push ring (63) facing away from the bidirectional spring (62) is fixedly connected to the outer cover (61).
7. An adjustable length, thermally insulated sealed wall-penetrating screw conduit structure according to claim 6, characterized in that: The end sealing cap (4) has a sealing structure on the side facing the template (100). The sealing structure includes an end face sealing ring (10) that abuts against the inner wall of the template (100).
8. An adjustable length, thermally insulated sealed through-the-wall screw pipe sleeve construction according to claim 6, characterized in that: The push ring (63) is provided with a central hole (64), and the inner diameter of the central hole (64) and the bidirectional spring (62) are both larger than the through-wall screw (9).