A telescoping pipe connection for pre-filter service replacement
By designing a retractable pipe connector, the problems of high maintenance costs and poor versatility of pre-filters are solved, enabling low-cost, fast maintenance and stable connections. It is suitable for various brands and models of products, ensuring long-term safe use.
Patent Information
- Application Number
- CN202521966015.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-12
AI Technical Summary
Repairing existing pre-filters is costly and not universally applicable, leading to pipe disconnections and disrupting daily life.
Design a retractable pipe connector, including a retractable part, a fixing part, and a union cap, made of PPR material. It can be quickly installed and disassembled without professional tools by using a spigot moving head and an internal threaded joint, and the sealing performance is enhanced by double sealing ring gaskets.
It enables low-cost and rapid pre-filter maintenance, is suitable for various brands and models of products, has a stable connection, is resistant to aging, prevents leakage, and ensures long-term safe use.
Smart Images
Figure CN224680373U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pipeline connection technology, specifically relating to a retractable pipeline connector for the maintenance and replacement of a pre-filter. Background Technology
[0002] With people's pursuit of a better life, the use of pre-filters has become widely accepted. Pre-filters are generally installed at the water inlet to intercept visible impurities in the water, such as sediment, rust, and red worms. However, when a filter needs repair, a spare unit is often used to maintain the household's daily water supply. This method is costly, and different filter models have slightly different installation spacing, making them not universally compatible. This can lead to situations where no replacement unit is available, or pipe connections are disrupted, affecting residents' daily lives. Currently, most pre-filters are connected to household pipes via heat fusion fittings. When disassembling the pre-filter body, both ends of the removed body have external threads, so a universal connector with external threads is needed as a replacement.
[0003] Therefore, this utility model is proposed. Utility Model Content
[0004] To address the technical problems existing in the prior art, this utility model provides a retractable pipe connector for the maintenance and replacement of a pre-filter.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A retractable pipe connector for the maintenance and replacement of a pre-filter includes a telescopic component, a fixing component, and a swivel cap fitted on the telescopic component. One end of the telescopic component is provided with a plug moving head, and one end of the fixing component is provided with a PPR plastic external thread. The plug moving head is used to insert into the through diameter of the PPR plastic external thread. The swivel cap is provided with an internal thread, which is configured to cooperate with the PPR plastic external thread.
[0006] The movable head of the connector is equipped with double sealing ring gaskets.
[0007] One end of the telescopic component is provided with a first external thread metal wire opening, which is used to connect with the connector nut on the home decoration pipe.
[0008] The connector moving head is made of PPR material.
[0009] One end of the fastener is provided with a second external thread metal wire opening, which is used to connect with the connector nut on the home decoration pipe.
[0010] The slipknot cap is made of PPR material.
[0011] The beneficial effects of this utility model are as follows: The movable head of the socket disclosed in this application can be adjusted according to the installation distance within the diameter of the PPR plastic external thread of the fixing part, so as to appropriately extend the pipe length. Then, the expansion joint and the fixing part are connected and fixed by a union cap. In addition, the expansion joint and the fixing part are respectively connected to the joint nut of the household pipe, thereby serving as a substitute for the pre-filter. This application uses double sealing ring gaskets to enhance the sealing of the pipeline, prevent leakage, and ensure long-term safe use; one end of both the expansion joint and the fixing part adopts a standard external thread metal wire, which is compatible with the joint nuts on the home decoration pipeline and is suitable for replacing products of various brands and models; the key connection parts are made of PPR material, which is consistent with the commonly used PPR pipe material in the home, with similar coefficient of thermal expansion, stable connection, and excellent aging resistance. Attached Figure Description
[0012] Figure 1 This is a structural schematic diagram of a retractable pipe connector for the maintenance and replacement of a pre-filter according to the present invention; Figure 2 This is an exploded view of a retractable pipe connector for the maintenance and replacement of a pre-filter according to the present invention. Figure 3 This is a front installation diagram of a retractable pipe connector for the maintenance and replacement of a pre-filter according to the present invention. The components are labeled as follows: 1. Telescopic component; 2. Fixing component; 3. Slip knot cap; 4. Insert moving head; 11. First external thread metal thread; 21. PPR plastic external thread; 22. Second external thread metal thread; 31. Internal thread; 41. Double sealing ring gasket. Detailed Implementation
[0013] The present invention will be further described below with reference to specific embodiments.
[0014] In the following description, all directional (or orientational) concepts involving up, down, left, right, front, and back refer to the position of the figure being described, and are intended to facilitate public understanding. Therefore, they should not be construed as a special limitation on the technical solution provided by this utility model.
[0015] like Figures 1-3As shown, a telescopic pipe connector for the maintenance and replacement of a pre-filter includes a telescopic component 1, a fixing component 2, and a swivel cap 3 fitted onto the telescopic component 1. One end of the telescopic component 1 has a plug-in moving head 4, and one end of the fixing component 2 has a PPR plastic external thread 21. The plug-in moving head 4 is inserted into the bore of the PPR plastic external thread 21. The swivel cap 3 has an internal thread 31, which mates with the PPR plastic external thread 21. This plug-in + swivel cap 3 locking structure, combined with a standard threaded interface, allows ordinary users to complete the replacement operation without professional tools or heat fusion equipment. The plug-in moving head 4 has a double sealing ring gasket 41, forming a double seal under the locking action of the swivel cap 3, effectively preventing leakage and ensuring long-term safe use.
[0016] One end of the telescopic component 1 is provided with a first external thread metal thread 11, which replaces the thread of the copper head of the pre-filter and is used to connect with the joint nut on the home decoration pipe; the plug moving head 4 is made of PPR material.
[0017] The fastener 2 has a second external thread metal thread 22 at one end, which replaces the thread of the copper head of the pre-filter and is used to connect with the joint nut on the home decoration pipe; the swivel cap 3 is made of PPR material.
[0018] During installation, first connect the expansion joint 1 to the connector nut of the home improvement pipe. Then, use the union cap 3 to connect the expansion joint 1 to the fixing part 2. Adjust the extension joint 4 of the expansion joint 1 according to the required length (extend or shorten). Connect the fixing part 2 to the connector nut at the other end of the home improvement pipe to complete the installation. Figure 3 (As shown). During disassembly, the components can be quickly separated by reversing the operation, making it easy to replace the filter or inspect the pipeline.
[0019] The socket moving head 4 disclosed in this application is within the diameter of the PPR plastic external thread 21 of the fixing part 2 and can be adjusted according to the installation distance to appropriately extend the pipe length. Then, the expansion member 1 and the fixing part 2 are connected and fixed by the swivel cap 3. In addition, the expansion member 1 and the fixing part 2 are respectively connected to the joint nut of the home decoration pipe, thereby playing the role of replacing the pre-filter.
[0020] This application uses double sealing ring gaskets 41, which can enhance the sealing of the pipeline, prevent leakage, and ensure long-term safe use; one end of the expansion joint 1 and the fixing part 2 both adopt standard external thread metal wire, which is compatible with the joint nuts on the home decoration pipeline and is suitable for product replacement of various brands and models; the key connection parts are made of PPR material, which is consistent with the commonly used PPR pipe material in the home, with similar coefficient of thermal expansion, stable connection, and excellent aging resistance.
[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.
Claims
1. A retractable pipe connector for the maintenance and replacement of a pre-filter, characterized in that: The device includes a telescopic component, a fixing component, and a swivel cap fitted onto the telescopic component. One end of the telescopic component is provided with a plug moving head, and one end of the fixing component is provided with a PPR plastic external thread. The plug moving head is used to insert into the through diameter of the PPR plastic external thread. The swivel cap is provided with an internal thread, which is configured to cooperate with the PPR plastic external thread.
2. The retractable pipe connector for pre-filter maintenance and replacement as described in claim 1, characterized in that: The movable head of the connector is equipped with double sealing ring gaskets.
3. The retractable pipe connector for pre-filter maintenance and replacement as described in claim 1, characterized in that: One end of the telescopic component is provided with a first external thread metal wire opening, which is used to connect with the connector nut on the home decoration pipe.
4. The retractable pipe connector for pre-filter maintenance and replacement as described in claim 1, characterized in that: The connector moving head is made of PPR material.
5. A retractable pipe connector for pre-filter maintenance and replacement as described in claim 1, characterized in that: One end of the fastener is provided with a second external thread metal wire opening, which is used to connect with the connector nut on the home decoration pipe.
6. A retractable pipe connector for pre-filter maintenance and replacement as described in claim 1, characterized in that: The slipknot cap is made of PPR material.