Auxiliary positioning device for glass fiber reinforced plastic pipeline production
By designing an auxiliary positioning device with a wide-diameter positioning groove and a gradually widening positioning block, the problems of accuracy and synchronous positioning in the hoisting of FRP pipes were solved, thereby improving production efficiency and reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG XINHUI COMPOSITE MATERIALS CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-05-15
AI Technical Summary
Existing FRP pipe auxiliary positioning devices require high precision during hoisting operations, making it difficult to achieve synchronous lateral positioning and independent processing of multiple pipes, which affects production efficiency and increases labor costs.
An auxiliary positioning device was designed, comprising a placement platform, a wide-diameter positioning groove, a gradually widening positioning block, a hydraulic cylinder, and a sealing assembly. The wide-diameter positioning groove reduces the accuracy requirements for hoisting, and the lifting and lowering of the gradually widening positioning block enables synchronous lateral positioning and independent processing of the pipeline.
This reduced the difficulty of hoisting operations, improved production efficiency, enabled the synchronous positioning and independent processing of multiple pipelines, and reduced labor costs.
Smart Images

Figure CN224240446U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline production technology, specifically to an auxiliary positioning device for the production of fiberglass pipes. Background Technology
[0002] Fiberglass reinforced plastic (FRP) pipes are lightweight, high-strength, and corrosion-resistant non-metallic pipes. They are made by winding glass fibers with a resin matrix layer by layer onto a rotating mandrel according to process requirements, with quartz sand evenly spread between the fibers as a sand layer. Compared with ordinary steel pipes, FRP pipes have advantages such as longer service life, lower overall cost, quick installation, and high safety and reliability, making them widely accepted by users. With the widespread application of FRP pipes in many fields such as chemical engineering, construction, and drainage, the precision and efficiency of their production process are receiving increasing attention. In the FRP pipe production process, the positioning stage is crucial. Currently, with the continuous expansion of FRP pipe production scale, the technological innovation of auxiliary positioning devices, as one of the key equipment to ensure production accuracy, is imperative.
[0003] Existing auxiliary positioning devices for FRP pipes have many shortcomings. On the one hand, some positioning devices require extremely high accuracy in the pipe hoisting and lowering position, which makes the hoisting operation difficult. Operators need to have a high level of skill and spend a lot of time and energy to accurately align the pipes, which seriously affects production efficiency and increases labor and time costs. On the other hand, most positioning devices cannot simultaneously meet the needs of synchronous lateral positioning and independent processing of multiple pipes when positioning them. Therefore, an auxiliary positioning device for FRP pipe production is needed to solve the problems existing in the current technology. Utility Model Content
[0004] The purpose of this utility model is to provide an auxiliary positioning device for the production of fiberglass pipes, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary positioning device for fiberglass pipe production, comprising a placement platform, a wide-diameter positioning groove at the upper end of the placement platform, a positioning mechanism in the inner area of the placement platform, the positioning mechanism comprising a gradually widening positioning block, a hydraulic cylinder, and a sealing assembly, the gradually widening positioning block being slidably connected to the inner area of the placement platform, the hydraulic cylinder being located below the gradually widening positioning block, and the sealing assembly being located inside the gradually widening positioning block.
[0006] Preferably, one end face of the placement platform is provided with a receiving groove, and the inner side wall of the receiving groove of the placement platform is provided with a lifting guide groove.
[0007] Preferably, a lifting guide block is fixed to one side surface of the gradually widening positioning block, and the lifting guide block is slidably connected in the lifting guide groove of the placement platform.
[0008] Preferably, the sealing assembly includes a sealing cover plate, which is fixed at the upper port of the receiving groove of the placement platform, and the gradually widening positioning block has a clearance opening inside.
[0009] Preferably, a support column is fixed between the inner top wall and the inner bottom wall where the clearance opening of the gradually widening positioning block is located. A return spring is sleeved on the outside of the support column. The upper end of the return spring is fixed to the lower end face of the sealing cover plate, and the lower end of the return spring is fixed to the inner bottom wall where the clearance opening is located.
[0010] Preferably, a connecting plate is fixed between adjacent gradually widening positioning blocks, the hydraulic cylinder is fixed on the inner bottom wall of the receiving groove, and the output end of the hydraulic cylinder is fixed to the bottom of the gradually widening positioning block.
[0011] This utility model provides an auxiliary positioning device for the production of fiberglass pipes, which has the following advantages compared with the prior art:
[0012] By using the positioning mechanism, which utilizes the fact that the diameter of the wide-diameter positioning groove on the placement platform is much larger than the diameter of the fiberglass pipe, the accuracy requirements for the lowering position of the fiberglass pipe during hoisting can be reduced. This makes the operation of hoisting and placing the fiberglass pipe onto the placement platform easier. Then, by controlling the rising distance of the gradually widening positioning block, the space of the wide-diameter positioning groove can be reduced until the gradually widening positioning block cooperates with the inner wall of the placement platform to press against the outer wall of the fiberglass pipe, thus achieving the purpose of positioning.
[0013] With the sealing cover and the gradually widening positioning block, the sealing cover closes the opening of the receiving groove so that the fiberglass pipe can roll smoothly when the gradually widening positioning block is raised. The raising of the gradually widening positioning block can simultaneously position the two fiberglass pipes laterally. At the same time, the gradually widening positioning block can also separate the placement areas of the two fiberglass pipes for subsequent independent processing. Attached Figure Description
[0014] Figure 1 This is a perspective view of the overall structure of this utility model;
[0015] Figure 2 This is a perspective view of the wide-diameter positioning groove structure of this utility model;
[0016] Figure 3 This is a three-dimensional view of the sealing component structure of this utility model;
[0017] Figure 4 This is a three-dimensional cross-sectional view of the gradually widening positioning block of this utility model.
[0018] In the diagram: 1. Placement platform; 2. Wide-diameter positioning groove; 3. Positioning mechanism; 4. Gradually widening positioning block; 5. Hydraulic cylinder; 6. Sealing assembly; 7. Connecting plate; 8. Lifting guide block; 9. Lifting guide groove; 10. Sealing cover plate; 11. Erecting support column; 12. Return spring; 13. Receiving groove; 14. Leaving opening. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-4 This utility model provides an auxiliary positioning device for the production of fiberglass pipes, including a placement platform 1. A wide-diameter positioning groove 2 is provided at the upper end of the placement platform 1. A positioning mechanism 3 is provided in the internal area of the placement platform 1. The positioning mechanism 3 includes a gradually widening positioning block 4, a hydraulic cylinder 5, and a sealing assembly 6. The gradually widening positioning block 4 is slidably connected to the internal area of the placement platform 1. The hydraulic cylinder 5 is located below the gradually widening positioning block 4. A receiving groove 13 is opened on one end face of the placement platform 1. A lifting guide groove 9 is opened on the inner side wall of the receiving groove 13 of the placement platform 1. A lifting guide block 8 is fixed on one side surface of the gradually widening positioning block 4. The lifting guide block 8 is slidably connected in the lifting guide groove 9 of the placement platform 1. Since the diameter of the wide-diameter positioning groove 2 on the placement platform 1 is much larger than the diameter of the fiberglass pipe, the accuracy requirement of the lowering position of the fiberglass pipe during hoisting can be reduced. Since the width of the gradually widening positioning block 4 increases continuously from high to low, the space of the wide-diameter positioning groove 2 can be reduced by controlling the rising distance of the gradually widening positioning block 4.
[0021] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth noting that the sealing assembly 6 is located inside the gradually widening positioning block 4. The sealing assembly 6 includes a sealing cover plate 10, which is fixed at the upper port of the receiving groove 13 of the placement platform 1. The gradually widening positioning block 4 has a clearance opening 14 inside. A support column 11 is fixed between the inner top wall and the inner bottom wall where the clearance opening 14 of the gradually widening positioning block 4 is located. A return spring 12 is sleeved on the outside of the support column 11. The upper end of the return spring 12 is fixed to the lower end face of the sealing cover plate 10, and the lower end of the return spring 12 is fixed to the inner bottom wall where the clearance opening 14 is located. The sealing cover plate 10 closes the opening of the receiving groove 13, so that the wide-diameter positioning grooves 2 on both sides of the gradually widening positioning block 4 are in a flat state.
[0022] Further as Figure 1 As shown, it is worth noting that a connecting plate 7 is fixed between adjacent gradually widening positioning blocks 4, and a hydraulic cylinder 5 is fixed on the inner bottom wall of the receiving groove 13. The output end of the hydraulic cylinder 5 is fixed at the bottom of the gradually widening positioning block 4. The lifting of the gradually widening positioning block 4 can simultaneously position the two fiberglass pipes laterally. At the same time, the gradually widening positioning block 4 can also separate the placement areas of the two fiberglass pipes for subsequent independent processing.
[0023] This solution has the following working process: Before positioning the FRP pipe, the FRP pipe is hoisted and placed on the wide-diameter positioning groove 2 of the placement platform 1. Since the diameter of the wide-diameter positioning groove 2 on the placement platform 1 is much larger than the diameter of the FRP pipe, this reduces the accuracy requirement of the FRP pipe's lowering position during hoisting, thus making the operation of hoisting and placing the FRP pipe on the placement platform 1 easier. After the FRP pipe is placed on the placement platform 1, the hydraulic cylinder 5 controls the gradually widening positioning block 4 to rise continuously. Since the width of the gradually widening positioning block 4 increases continuously from high to low, controlling the rising distance of the gradually widening positioning block 4 can achieve the shrinkage of the space in the wide-diameter positioning groove 2 until the gradually widening positioning block 4 cooperates with the inner wall of the placement platform 1 to press against the outer wall of the FRP pipe to achieve the positioning purpose.
[0024] During the placement of the fiberglass pipe, the sealing cover plate 10 closes the opening of the receiving groove 13, so that the wide-diameter positioning grooves 2 on both sides of the gradually widening positioning block 4 are in a flat state, so that the fiberglass pipe can be smoothly rolled when the gradually widening positioning block 4 is raised. When both wide-diameter positioning grooves 2 on both sides of the gradually widening positioning block 4 are filled with fiberglass pipes, the raising of the gradually widening positioning block 4 can simultaneously position the two fiberglass pipes laterally. At the same time, the gradually widening positioning block 4 can also separate the placement areas of the two fiberglass pipes for subsequent independent processing.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Although embodiments of this utility model have been shown and described, this does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model. Regarding the embodiments of this utility model, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. An auxiliary positioning device for the production of fiberglass pipes, comprising a placement platform (1), characterized in that: The upper end of the placement platform (1) is provided with a wide-diameter positioning groove (2), and the internal area of the placement platform (1) is provided with a positioning mechanism (3). The positioning mechanism (3) includes a gradually widening positioning block (4), a hydraulic cylinder (5) and a sealing assembly (6). The gradually widening positioning block (4) is slidably connected to the internal area of the placement platform (1). The hydraulic cylinder (5) is located below the middle gradually widening positioning block (4), and the sealing assembly (6) is located inside the gradually widening positioning block (4).
2. The auxiliary positioning device for fiberglass pipe production according to claim 1, characterized in that: The placement platform (1) has a receiving groove (13) on one end face, and a lifting guide groove (9) is provided on the inner side wall where the receiving groove (13) of the placement platform (1) is located.
3. The auxiliary positioning device for fiberglass pipe production according to claim 2, characterized in that: A lifting guide block (8) is fixed on one side surface of the gradually widening positioning block (4), and the lifting guide block (8) is slidably connected in the lifting guide groove (9) of the placement platform (1).
4. The auxiliary positioning device for fiberglass pipe production according to claim 3, characterized in that: The sealing assembly (6) includes a sealing cover plate (10), which is fixed at the upper port of the receiving groove (13) of the placement platform (1), and the interior of the gradually widening positioning block (4) is provided with a clearance opening (14).
5. The auxiliary positioning device for fiberglass pipe production according to claim 4, characterized in that: A support column (11) is fixed between the inner top wall and the inner bottom wall where the clearance opening (14) of the gradually widening positioning block (4) is located. A return spring (12) is sleeved on the outside of the support column (11). The upper end of the return spring (12) is fixed to the lower end face of the sealing cover plate (10), and the lower end of the return spring (12) is fixed to the inner bottom wall where the clearance opening (14) is located.
6. The auxiliary positioning device for fiberglass pipe production according to claim 1, characterized in that: A connecting plate (7) is fixed between adjacent gradually widening positioning blocks (4), the hydraulic cylinder (5) is fixed on the inner bottom wall of the receiving groove (13), and the output end of the hydraulic cylinder (5) is fixed at the bottom of the gradually widening positioning block (4).