Floor heating stop valve all-plastic sub-catchment device with projectile cleaning port

Abstract

The utility model relates to a floor heating stop valve all-plastic sub-catchment device with a projectile cleaning port. The lower end of a sub-catchment device body is connected with a floor heating pipe through a quick-insertion sealing structure. The upper end of the sub-catchment device main body is hermetically connected with a stop valve assembly; wherein a connector of the quick-insertion sealing structure and the lower branch pipeline is the same as a connector of the stop valve assembly and the upper branch pipeline; when only one water inlet and water return stop valve assembly is in an open state, the other stop valve assemblies are in a closed state, the projectile cleaning pipe or the floor heating pipe with the proper length is matched with the stop valve assemblies in the open state in an inserted mode through a quick-insertion sealing structure, and floor heating is in a cleaning state. When the sub-catchment device is used for cleaning terrestrial heat, the stop valve element assembly is taken down, the projectile cleaning pipe or a floor heating pipe with a proper length can be inserted into the quick-insertion sealing structure for projectile cleaning of the floor heating pipeline, and the sub-catchment device is convenient and quick to use.

Description

Technical Field

[0001] This utility model relates to a fully plastic manifold with a built-in projectile cleaning port for floor heating, belonging to the technical field of indoor floor heating equipment. Background Technology

[0002] Low-temperature hot water radiant floor heating systems are a widely used new type of heating method. The manifold, a water control component used in this system, is a specialized pipe fitting that connects the main pipe to various branch pipes, serving both diversion and convergence functions. The manifold is a distribution device used to connect the supply pipes of each floor heating system; the collector is a collection device used to connect the return pipes of each floor heating system. Most existing manifolds lack a projectile cleaning port. Projectile cleaning requires disassembling the manifold's loop connectors to clean the floor heating pipes, and disassembling and reinstalling the floor heating pipes is very inconvenient. Summary of the Invention

[0003] The technical problem this invention aims to solve is to provide a fully plastic manifold with a built-in projectile cleaning port for underfloor heating systems. The manifold body has several upper connectors at its top, corresponding to branch pipe joints. These upper connectors are connected via a sealed threaded connection using a stop valve core assembly. When cleaning the underfloor heating system, the stop valve core assembly can be removed, and the lower connector cap and clamping sleeve assembly can be used to insert a projectile cleaning pipe or an underfloor heating pipe of appropriate length for projectile cleaning of the underfloor heating pipes, making the process convenient and quick.

[0004] To solve the above problems, the specific technical solution of this utility model is as follows: A fully plastic manifold with a built-in projectile cleaning port for underfloor heating, comprising a main body for water inlet and return connected to the upper and lower parts of the frame; several lower branch pipes are integrally connected to the lower end of the main body, each lower branch pipe being connected to the inlet or outlet of a corresponding underfloor heating pipe via a quick-connect sealing structure; several upper branch pipes are integrally connected to the upper end of the main body, each upper branch pipe being sealed with a stop valve assembly, which opens or closes the lower branch pipe; the interface between the quick-connect sealing structure and the lower branch pipe is the same as the interface between the stop valve assembly and the upper branch pipe; when only one inlet and return stop valve assembly is open, and the remaining stop valve assemblies are closed, the projectile cleaning pipe or an underfloor heating pipe of appropriate length is inserted and connected to the open stop valve assembly via the quick-connect sealing structure to achieve the underfloor heating in a cleaning state.

[0005] The quick-connect sealing structure consists of a locking nut, a ferrule, and a sealing assembly. The sealing assembly is seated in the groove of the lower or upper branch pipe, and the opening of the Y-shaped sealing ring is opposite to the direction of water flow. The locking nut is threaded to the lower or upper branch pipe, and the ferrule is located in the shoulder of the locking nut. The ferrule is provided with an expansion groove and sawtooth teeth. The expansion groove is located at the shoulder of the locking nut, and the sawtooth teeth are located on the inner circumference of the ferrule and engage with the underfloor heating pipe or the projectile cleaning pipe.

[0006] The sealing assembly is either an integral sealing ring with a shoulder or a separate structure consisting of a retaining ring and a Y-shaped sealing ring.

[0007] The root of the projectile cleaning pipe is inserted into the inner cavity of the water distribution manifold, and the root of the projectile cleaning pipe is supported at the inlet of the lower branch pipe.

[0008] The shut-off valve assembly includes a valve seat, a valve cap, and a valve core; the valve seat is threadedly sealed to the upper branch pipe; the valve cap is threadedly connected to the upper end of the valve seat, and the valve core is connected to the top of the valve cap by a screw, and the valve core is sealed to the inner surface of the valve seat; the lower end of the valve core extends into the inner cavity of the manifold body, and a sealing ring is provided at the lower end; the valve cap rotates downward to the lowest position, and the sealing ring at the lower end of the valve core blocks the inlet of the lower branch pipe.

[0009] The all-plastic manifold with built-in projectile cleaning port for underfloor heating, which adopts the above structure, has the following advantages:

[0010] 1. The quick-connect sealing structure and the interface of the lower branch pipe in this application are the same as the interface of the stop valve assembly and the upper branch pipe; the product structure is optimized so that after the stop valve assembly is disassembled, the ejector cleaning pipe can be installed through the quick-connect sealing structure, realizing the floor heating pipe without disassembling the water manifold, which is more convenient, safe and fast.

[0011] 2. The upper branch pipes of the manifold in this application are equipped with a shut-off assembly as the valve body structure, which can control the opening and closing of each branch. At the same time, this connector is used to clean the underfloor heating pipes. The main body of the manifold is integrally molded, with good sealing performance, safe and reliable use. Attached Figure Description

[0012] Figure 1 This is a structural diagram of an all-plastic manifold with a built-in projectile cleaning port for underfloor heating.

[0013] Figure 2 for Figure 1 A magnified view of part A.

[0014] Figure 3 This is a schematic diagram of the structure of card sleeve 4.

[0015] Figure 4 for Figure 1 A magnified view of section B. Detailed Implementation

[0016] like Figures 1 to 4 As shown, a fully plastic manifold for underfloor heating with a built-in projectile cleaning port includes a main body 1 for inlet and outlet water supply connected to the upper and lower parts of a frame 19. The lower end of the main body 1 is integrally connected to several lower branch pipes 8, each connected to the inlet or outlet of a corresponding underfloor heating pipe 20 via a quick-connect sealing structure 30. The upper end of the main body 1 is integrally connected to several upper branch pipes 9, each sealed to a stop valve assembly 10, which opens or closes the lower branch pipe 8. The interface between the quick-connect sealing structure 30 and the lower branch pipe 8 is the same as the interface between the stop valve assembly 10 and the upper branch pipe 9. When only one inlet and outlet stop valve assembly 10 is open, and the others are closed, the projectile cleaning pipe 5 or an underfloor heating pipe of appropriate length is inserted into the open stop valve assembly 10 via the quick-connect sealing structure 30, thus achieving a cleaned underfloor heating system.

[0017] like Figure 2 As shown, the quick-connect sealing structure 30 consists of a locking nut 2, a retaining sleeve 4, and a sealing assembly 3; wherein the sealing assembly 3 is seated in the groove of the lower branch pipe 8 or the upper branch pipe 9, and the opening of the Y-shaped sealing ring 7 is opposite to the direction of water flow; the locking nut 2 is threadedly connected to the lower branch pipe 8 or the upper branch pipe 9, and the retaining sleeve 4 is located in the locking shoulder of the locking nut 2, as shown. Figure 3 As shown, the sleeve 4 is provided with an expansion groove 42 and serrated teeth 41. The expansion groove 42 is located at the locking shoulder of the locking nut 2, and the serrated teeth 41 are located on the inner circumference of the sleeve 4, engaging with the underfloor heating pipe 20 or the projectile cleaning pipe 5. The sealing assembly 3 is an integral sealing ring with a shoulder or a separate structure consisting of a retaining ring 6 and a Y-shaped sealing ring 7. When the locking nut 2 is connected to the lower branch pipe 8, and the sealing assembly 3 is inserted and sealed with the underfloor heating pipe 20, the sealing assembly 3, consisting of the separate structure of the retaining ring 6 and the Y-shaped sealing ring 7, experiences downward pressure from the water flow, resulting in stronger pressure resistance for the Y-shaped sealing ring 7 and improved sealing performance. Figure 4 As shown, when the locking nut 2 is connected to the upper branch pipe 9 and the sealing assembly 3 is inserted and sealed to the projectile cleaning pipe 5, the sealing assembly 3 uses a sealing ring with a shoulder. The shoulder of the sealing ring is pressed against the end face between the valve seat 1 and the upper branch pipe 9, thereby ensuring axial and radial sealing performance.

[0018] The applicant's patent application dated June 16, 2023, with patent number 2023215397422 and title "A ferrule for a pipe connector and its matching locking nut" has the same structure as the aforementioned quick-connect sealing structure. For those skilled in the art, other existing quick-connect sealing structures can also be used for connection.

[0019] The root of the projectile cleaning pipe 5 is inserted into the inner cavity of the water distribution unit 1, and the root of the projectile cleaning pipe 5 is supported at the inlet of the lower branch pipe 8.

[0020] The shut-off valve assembly 10 includes a valve seat 11, a valve cap 12, and a valve core 14; the valve seat 11 is threadedly sealed to the upper branch pipe 9; the valve cap 12 is threadedly connected to the upper end of the valve seat 11, and the top of the valve cap 12 is connected to the valve core 14 by a screw 13, and the valve core 14 is sealed to the inner surface of the valve seat 11; the lower end of the valve core 14 extends into the inner cavity of the water distribution manifold body 1, and a sealing ring 18 is provided at the lower end; the valve cap 12 rotates downward to the lowest position, and the sealing ring 18 at the lower end of the valve core 14 blocks the inlet of the lower branch pipe 8.

Claims

1. A fully plastic manifold with a built-in projectile cleaning port for underfloor heating, characterized in that: The main body (1) of the manifold is connected to the upper and lower parts of the frame (19) for water inlet and return respectively; the lower end of the main body (1) is integrally connected to several lower branch pipes (8), and each lower branch pipe (8) is connected to the inlet or outlet of a corresponding floor heating pipe (20) through a quick-connect sealing structure (30); the upper end of the main body (1) is integrally connected to several upper branch pipes (9), and each upper branch pipe (9) is sealed to a stop valve assembly (10), and the stop valve assembly (10) is open. Open or close the lower branch pipe (8); the interface of the quick-connect sealing structure (30) and the lower branch pipe (8) is the same as the interface of the stop valve assembly (10) and the upper branch pipe (9); when only one inlet and outlet stop valve assembly (10) is open and the other stop valve assemblies (10) are closed, the projectile cleaning pipe (5) or the floor heating pipe of appropriate length is connected to the open stop valve assembly (10) through the quick-connect sealing structure (30) to realize the floor heating in the cleaning state.

2. The all-plastic manifold with built-in projectile cleaning port for underfloor heating as described in claim 1, characterized in that: The quick-connect sealing structure (30) consists of a locking nut (2), a sleeve (4), and a sealing component (3); wherein the sealing component (3) is seated in the groove of the lower branch pipe (8) or the upper branch pipe (9), and the opening of the Y-shaped sealing ring (7) is opposite to the direction of water flow; the locking nut (2) is threadedly connected to the lower branch pipe (8) or the upper branch pipe (9), the sleeve (4) is located in the locking shoulder of the locking nut (2), the sleeve (4) is provided with an expansion groove (42) and a sawtooth (41), the expansion groove (42) is located at the locking shoulder of the locking nut (2), the sawtooth (41) is located on the inner circumference of the sleeve (4), and is engaged with the floor heating pipe (20) or the projectile cleaning pipe (5).

3. The all-plastic manifold with built-in projectile cleaning port for underfloor heating as described in claim 2, characterized in that: The sealing assembly (3) is either an integral sealing ring with a shoulder or a separate structure consisting of a retaining ring (6) and a Y-shaped sealing ring (7).

4. The all-plastic manifold with built-in projectile cleaning port for underfloor heating as described in claim 1, characterized in that: The root of the projectile cleaning pipe (5) is inserted into the inner cavity of the water distribution body (1), and the root of the projectile cleaning pipe (5) is supported at the inlet of the lower branch pipe (8).

5. The all-plastic manifold with built-in projectile cleaning port for underfloor heating as described in claim 1, characterized in that: The shut-off valve assembly (10) includes a valve seat (11), a valve cap (12), and a valve core (14); the valve seat (11) is threadedly sealed to the upper branch pipe (9); the valve cap (12) is threadedly connected to the upper end of the valve seat (11), and the top of the valve cap (12) is connected to the valve core (14) by a screw (13), and the valve core (14) is sealed to the inner surface of the valve seat (11); the lower end of the valve core (14) extends into the inner cavity of the water distribution unit (1), and a sealing ring (18) is provided at the lower end; the valve cap (12) rotates downward to the lowest position, and the sealing ring (18) at the lower end of the valve core (14) blocks the inlet of the lower branch pipe (8).

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