Glass fiber reinforced plastic valve well
By introducing detachable movable sleeves and sealing sleeves into FRP valve wells, the problem of fixed-size pre-drilled holes being difficult to adapt to different specifications of gas pipelines is solved, realizing the adaptation and sealing of multi-specification pipelines, and improving construction efficiency and versatility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZIBO LVCHUAN GAS CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-08
AI Technical Summary
The fixed-size pipe pre-drilled holes in existing FRP valve wells are difficult to accommodate gas pipelines of different specifications, leading to sealing difficulties or inability to install, increasing construction costs and time.
Design a pipe installation assembly that includes a fixed sleeve and a movable sleeve. The movable sleeve and sealing sleeve can be adapted to gas pipes of different specifications. The snap-fit protrusion and positioning guide groove are used to achieve accurate positioning and sealing. The connection stability is improved by combining reinforcing ribs and fixing components.
It improves the versatility of FRP valve wells, reduces construction costs and time required for redesign or modification due to changes in pipeline specifications, and simplifies the installation and maintenance process.
Smart Images

Figure CN224214858U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of valve well technology, and more specifically, to a fiberglass valve well. Background Technology
[0002] Currently, fiberglass valve wells are widely used in gas pipeline laying projects due to their excellent corrosion resistance, high strength, and lightweight properties. Existing fiberglass valve wells typically have pre-drilled holes of fixed dimensions on their side walls for the installation and connection of gas pipelines.
[0003] However, this type of fixed-size pipe pre-drilled hole has significant drawbacks. Because different gas pipeline projects use significantly different pipe specifications, a fixed-size pre-drilled hole is unsuitable for pipes of varying sizes. When the actual gas pipeline specifications do not match the pre-drilled hole, if the pipe diameter is smaller than the hole, sealing will be difficult; if the pipe diameter is larger, installation will be impossible, requiring either a custom-made valve well or destructive modification of the pre-drilled hole. This undoubtedly increases construction costs and time, and reduces construction efficiency. Summary of the Invention
[0004] The purpose of this application is to provide a fiberglass valve well that can solve the technical problem that the fixed-size pipe pre-drilled holes of existing fiberglass gas valve wells are difficult to adapt to gas pipelines of different specifications.
[0005] This application provides a fiberglass valve well, including a valve well body with a pipe pre-drilled hole on the side wall. A pipe installation assembly is provided at the pipe pre-drilled hole. The pipe installation assembly includes a fixed sleeve and a movable sleeve. The fixed sleeve is fixedly installed inside the pipe pre-drilled hole. The movable sleeve is detachably installed inside the fixed sleeve. One end of the movable sleeve is provided with a sealing sleeve.
[0006] Furthermore, the movable sleeve has a plurality of snap-fit protrusions evenly arranged on the outer edge of the end away from the sealing sleeve, the inner wall of the fixed sleeve has a positioning guide groove adapted to the snap-fit protrusions, and the inner end of the fixed sleeve has an annular snap groove communicating with the positioning guide groove, and the snap-fit protrusions can snap into the annular snap groove.
[0007] Furthermore, a sealing ring is fixed to the outer end of the fixed sleeve, and an annular extrusion plate is provided at one end of the movable sleeve near the sealing sleeve. When the snap-fit protrusion is snapped into the annular groove, the annular extrusion plate presses against the sealing ring.
[0008] Furthermore, multiple reinforcing ribs are uniformly fixed at the connection between the fixed sleeve and the valve well body.
[0009] Furthermore, one end of the movable sleeve is provided with a fixing component for connecting the sealing sleeve to the movable sleeve. The fixing component includes a first flange and a second flange. The first flange is fixed on the movable sleeve, and one end of the sealing sleeve is located between the first flange and the second flange. The first flange and the second flange are connected by a plurality of matching bolts and nuts.
[0010] Furthermore, it also includes a pipe clamp for securing the sealing sleeve to the surface of the gas pipeline.
[0011] Furthermore, a set of handles are symmetrically fixed on the annular extruder.
[0012] The beneficial effects of this utility model are:
[0013] This utility model features a pipe installation assembly at the pre-drilled hole for the pipe. The assembly includes a fixed sleeve and a movable sleeve, which work together to fix the gas pipe and seal it with a sealing sleeve. This design can accommodate various gas pipe specifications and is no longer limited to pre-drilled holes of fixed sizes. Construction workers only need to prepare movable sleeves of different sizes to meet the installation requirements of various pipe specifications, greatly improving the versatility of the FRP valve well and reducing the need to customize valve wells or modify pre-drilled holes due to changes in pipe specifications. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 These are schematic diagrams of structures in some embodiments of this application;
[0016] Figure 2 These are cross-sectional views of some embodiments of this application;
[0017] Figure 3 This is an exploded structural diagram of a pipe installation assembly in some embodiments of this application;
[0018] The reference numerals in the attached figures are as follows:
[0019] 1. Valve well body; 11. Pipeline reserved hole; 2. Pipeline installation assembly; 21. Fixing sleeve; 211. Positioning guide groove; 212. Annular groove; 22. Movable sleeve; 221. Snap-fit protrusion; 3. Sealing sleeve; 4. Sealing ring; 5. Annular extrusion plate; 6. Reinforcing rib plate; 7. Fixing assembly; 71. First flange; 72. Second flange; 8. Pipe clamp; 9. Handle; 10. Gas pipeline. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0023] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0025] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Specific implementation examples:
[0027] like Figure 1-3 As shown, this application provides a fiberglass valve well, including a valve well body 1 with a pipe pre-drilled hole 11 on the side wall. The valve well body 1 is made of fiberglass. A pipe installation assembly 2 is provided at the pipe pre-drilled hole 11. The pipe installation assembly 2 includes a fixed sleeve 21 and a movable sleeve 22. The fixed sleeve 21 is fixedly installed inside the pipe pre-drilled hole 11, and the entire installation assembly 2 provides stable support and a fixed foundation. The movable sleeve 22 is detachably installed inside the fixed sleeve 21. One end of the movable sleeve 22 is provided with a sealing sleeve 3. According to the actual specifications of the gas pipeline 10 to be installed, a movable sleeve 22 with a different inner diameter can be selected and placed into the fixed sleeve 21, thereby adjusting the inner diameter of the pipe pre-drilled hole 11 to match the pipe to be installed. The outer diameter of the gas pipeline 10 is matched, realizing the adaptability of gas pipelines 10 with different diameters. After the gas pipeline 10 is inserted into the movable sleeve 22, the connection is sealed with the sealing sleeve 3. The gas pipeline 10 is fixed by the cooperation of the fixed sleeve 21 and the movable sleeve 22, and sealed with the sealing sleeve 3. It can adapt to a variety of gas pipelines 10 with different specifications, no longer limited to the fixed size of the pipeline reserved hole 11. The construction personnel only need to prepare movable sleeves 22 of different sizes to meet the installation requirements of various pipeline specifications, which greatly improves the versatility of FRP valve wells and reduces the need to re-customize valve wells or modify pipeline reserved holes 11 due to changes in pipeline specifications.
[0028] like Figure 2 and Figure 3As shown, the outer edge of the movable sleeve 22 away from the sealing sleeve 3 is evenly provided with multiple snap-fit protrusions 221. The inner wall of the fixed sleeve 21 is provided with a positioning guide groove 211 that matches the snap-fit protrusions 221. The inner wall of the inner end of the fixed sleeve 21 is provided with an annular groove 212 that communicates with the positioning guide groove 211. The snap-fit protrusions 221 can snap into the annular groove 212. Specifically, the snap-fit protrusions 221 and the movable sleeve 22 are integrally formed. When the movable sleeve 22 is installed, the snap-fit protrusions 221 cooperate with the positioning guide groove 211 on the inner wall of the fixed sleeve 21. The positioning guide groove 211 provides an accurate insertion path for the snap-fit protrusions 221, so that the movable sleeve 22 can smoothly enter the fixed sleeve 21 in the correct direction and position, playing a positioning and guiding role, and ensuring the installation. For accuracy, when the movable sleeve 22 is inserted into the fixed sleeve 21 at the appropriate position along the positioning guide groove 211, the locking protrusion 221 will reach the annular locking groove 212 that communicates with the positioning guide groove 211. At this time, by rotating the movable sleeve 22, the locking protrusion 221 is locked into the annular locking groove 212, thereby locking the movable sleeve 22 in the fixed sleeve 21, ensuring the stability of the connection between the movable sleeve 22 and the fixed sleeve 21. When it is necessary to maintain or replace the movable sleeve 22 in the valve well, simply rotate the movable sleeve 22 at a certain angle to disengage the locking protrusion 221 from the annular locking groove 212, and then remove the movable sleeve 22 from the fixed sleeve 21 along the positioning guide groove 211. The operation is relatively simple and facilitates later maintenance and repair work.
[0029] like Figure 2 and Figure 3 As shown, a sealing ring 4 is fixedly provided at the outer end of the fixed sleeve 21, and an annular extrusion plate 5 is provided at the end of the movable sleeve 22 near the sealing sleeve 3. When the snap-fit protrusion 221 is snapped into the annular groove 212, the annular extrusion plate 5 presses against the sealing ring 4. When the movable sleeve 22 is inserted into the fixed sleeve 21 and rotated, so that the snap-fit protrusion 221 is snapped into the annular groove 212, the position of the movable sleeve 22 is fixed. At this time, the annular extrusion plate 5 at the end of the movable sleeve 22 near the sealing sleeve 3 will contact the sealing ring 4 at the outer end of the fixed sleeve 21 and generate extrusion as the movable sleeve 22 is in place, thereby forming a sealing structure and preventing external substances from entering the valve well through the connection between the movable sleeve 22 and the fixed sleeve 21.
[0030] like Figure 1 and Figure 2 As shown, multiple reinforcing ribs 6 are uniformly fixed at the connection between the fixed sleeve 21 and the valve well body 1. The reinforcing ribs 6 can increase the structural strength and rigidity of the connection between the fixed sleeve 21 and the valve well body 1, so that the connection can better resist deformation and damage and maintain the stability of the structure.
[0031] like Figure 1-3As shown, one end of the movable sleeve 22 is provided with a fixing component 7 for connecting the sealing sleeve 3 to the movable sleeve 22. The fixing component 7 includes a first flange 71 and a second flange 72. The first flange 71 is fixed on the movable sleeve 22, and the second flange 72 is arranged opposite to the first flange 71. One end of the sealing sleeve 3 is located between the first flange 71 and the second flange 72. The first flange 71 and the second flange 72 are connected by multiple matching bolts and nuts. When installing the sealing sleeve 3, the gas pipe 10 is first inserted into the movable sleeve 22, and then the sealing sleeve 3 is put on. The movable sleeve 22 is moved to the first flange 71 of the movable sleeve 22. The end of the sealing sleeve 3 near the first flange 71 is folded outward. Then, the second flange 72 is connected to the first flange 71 using bolts and nuts. The sealing sleeve 3 is tightly clamped in the middle by the squeezing force generated by the first flange 71 and the second flange 72. When the sealing sleeve 3 needs to be replaced due to aging, damage or other reasons, simply unscrew the bolts and nuts, remove the second flange 72 from the first flange 71, and the old sealing sleeve 3 can be easily removed and replaced with a new sealing sleeve 3.
[0032] like Figure 1-3 As shown, a fiberglass valve well of this application also includes a pipe clamp 8 for fixing the sealing sleeve 3 to the surface of the gas pipeline 10. Specifically, the pipe clamp 8 is a stainless steel clamp. After one end of the sealing sleeve 3 is fixed by the fixing component 7, the locking pressure of the pipe clamp 8 is used to make the other end of the sealing sleeve 3 fit tightly against the surface of the gas pipeline 10 to maintain a good sealing state.
[0033] like Figure 1 and Figure 3 As shown, a set of handles 9 are symmetrically fixed on the annular extruder to facilitate operation. When it is necessary to install or remove the movable sleeve 22, the operator can grasp the handles 9 and apply rotational or axial force to easily control the movement of the movable sleeve 22 and realize the installation and removal of the movable sleeve 22.
[0034] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A fiberglass valve well, characterized in that: The valve well body includes a pipe pre-drilled hole on the side wall. A pipe installation assembly is provided at the pipe pre-drilled hole. The pipe installation assembly includes a fixed sleeve and a movable sleeve. The fixed sleeve is fixedly installed inside the pipe pre-drilled hole. The movable sleeve is detachably installed inside the fixed sleeve. One end of the movable sleeve is provided with a sealing sleeve.
2. The fiberglass valve well according to claim 1, characterized in that: The movable sleeve has a plurality of snap-fit protrusions evenly arranged on the outer edge of the end away from the sealing sleeve. The inner wall of the fixed sleeve is provided with a positioning guide groove that matches the snap-fit protrusions. The inner wall of the inner end of the fixed sleeve is provided with an annular snap groove that communicates with the positioning guide groove. The snap-fit protrusions can snap into the annular snap groove.
3. A fiberglass valve well according to claim 2, characterized in that: A sealing ring is fixed to the outer end of the fixed sleeve, and an annular extrusion plate is provided at one end of the movable sleeve near the sealing sleeve. When the snap-fit protrusion is snapped into the annular groove, the annular extrusion plate presses against the sealing ring.
4. A fiberglass valve well according to claim 1, characterized in that: Multiple reinforcing ribs are uniformly fixed at the connection between the fixed sleeve and the valve well body.
5. A fiberglass valve well according to claim 1, characterized in that: One end of the movable sleeve is provided with a fixing component for connecting the sealing sleeve to the movable sleeve. The fixing component includes a first flange and a second flange. The first flange is fixed on the movable sleeve. One end of the sealing sleeve is located between the first flange and the second flange. The first flange and the second flange are connected by a plurality of matching bolts and nuts.
6. A fiberglass valve well according to claim 1, characterized in that: It also includes a pipe clamp for securing the sealing sleeve to the surface of the gas pipeline.
7. A fiberglass valve well according to claim 3, characterized in that: A set of handles is symmetrically fixed on the annular extruder.