Multifunctional branch valve for floor heating water distributor

Abstract

A kind of multifunctional branch valve for floor heating distribution collector. Solve the problem that floor heating coil cannot be sealed when accidentally falling off from the branch pipe of distribution collector. The utility model discloses a valve pipe, side filter mechanism and floor heating pipe mechanism, the lower end of valve pipe is provided with floor heating pipe mechanism, the outer wall of valve pipe is provided with side filter mechanism, valve pipe includes pipe body, ball valve, knob, connecting threaded pipe, side pipe head, inner connecting pipe, sealing rubber ring, connecting rod, sealing round plate and two L-shaped legs, the upper end of pipe body is provided with connecting threaded pipe, ball valve is built-in in pipe body, connecting rod is arranged along the thickness direction of pipe body, one end of connecting rod is provided with ball valve, the other end of connecting rod is provided with knob, side pipe head is arranged on pipe body, side filter mechanism is arranged on side pipe head, the lower end of pipe body is provided with inner connecting pipe, floor heating pipe mechanism is sleeved on inner connecting pipe, two sliding holes are machined on inner connecting pipe, outer thread is machined on the lower end outer wall of pipe body along its circumference.

Description

Technical Field

[0001] This utility model specifically relates to a multi-functional branch valve for a floor heating manifold, belonging to the field of heating, ventilation, and air conditioning (HVAC). Background Technology

[0002] During the long-term operation of a heating system, the manifold, as a key component connecting the main pipeline and each loop branch, directly affects the safety and stability of the entire system due to the reliability of its branch water pipe interfaces.

[0003] Branch pipes are typically connected to underfloor heating coils using inverted conical sawtooth joints or compression fittings. As the years of use increase, the spring clips lose elasticity due to metal fatigue, the sealing rings lose their resilience due to thermal and oxidative aging, and the locking nuts gradually loosen under vibration and thermal cycling. At the same time, pipe creep reduces the insertion depth and lowers the coefficient of friction of the contact surface, which greatly reduces the water pressure impact resistance at the connection between the branch pipe and the underfloor heating coil.

[0004] Especially during the pre-heating season water pressure test, the static pressure is much higher than the daily operating value, creating a momentary impact on the connection between the branch pipes and the underfloor heating coils. In daily life, people often neglect underfloor heating and do not inspect or maintain the manifold. Old joints, without effective pre-tightening force and sealing compensation, are very prone to loosening, leakage, or even complete detachment under this pressure peak, causing water accumulation and property damage in the house.

[0005] Therefore, there is an urgent need for an emergency sealing structure that can prevent underfloor heating water leakage the moment the water pressure pulls the underfloor heating coils out. Utility Model Content

[0006] To overcome the shortcomings of existing technologies, a multi-functional branch valve for underfloor heating manifolds is provided to solve the above problems.

[0007] A multi-functional branch valve for a floor heating manifold includes a valve pipe, a side-pass filter mechanism, and a floor heating pipe mechanism. The floor heating pipe mechanism is provided at the lower end of the valve pipe, and the side-pass filter mechanism is provided on the outer wall of the valve pipe. The valve pipe includes a pipe body, a ball valve, a knob, a connecting threaded pipe, a side-through pipe head, an inner connecting pipe, a sealing ring, a connecting rod, a sealing disc, and two L-shaped legs. The upper end of the pipe body has a connecting threaded pipe, and a ball valve is built into the pipe body. A connecting rod passes through the pipe body along its thickness, with a ball valve at one end and a knob at the other. A side-through pipe head with a side-through filter mechanism is located on the pipe body. The lower end of the pipe body has an inner connecting pipe, on which a floor heating pipe mechanism is fitted. Two [unclear characters] are machined on the inner connecting pipe. The pipe body has external threads machined along its circumference on the lower outer wall. The underfloor heating pipe mechanism is threaded to the external threads. An annular groove is provided along its circumference on the lower end face of the pipe body. A sealing rubber ring is provided in the annular groove. Two strip grooves are machined on the lower end face of the pipe body. Each of the two strip grooves is connected to a sliding hole. Two L-shaped legs are placed in each of the two strip grooves. Each L-shaped leg is slidably set in the sliding hole corresponding to its position. The two L-shaped legs are respectively set at the lower end of the sealing circular plate. An expansion cavity is machined inside the pipe body. The sealing circular plate is placed in the expansion cavity.

[0008] As a preferred embodiment: the side-pass filter mechanism includes a side-pass pipe, a threaded cap, a filter pipe, a pull rod, and a sealing ring. One end of the side-pass pipe is set on the side-pass pipe head and is connected to the pipe body. The other end of the side-pass pipe is threadedly connected to the threaded cap. The threaded cap has a through hole processed along its thickness direction. A sealing ring is set in the through hole. A pull rod is passed through the sealing ring. A filter pipe is set at the end of the pull rod. The filter pipe passes through the side-pass pipe and is placed in the pipe body.

[0009] As a preferred embodiment: the underfloor heating pipe mechanism includes underfloor heating pipe fittings, clamps, sliding sleeve nuts, and hexagonal rings. The underfloor heating pipe fittings are fitted onto the inner connecting pipe, and the end faces of the underfloor heating pipe fittings are abutted against two L-shaped legs. The ends of the underfloor heating pipe fittings are fitted with clamps, which are abutted against the inner wall of the sliding sleeve nuts. The sliding sleeve nuts are threaded onto the underfloor heating pipe fittings and are connected to the external threads. Hexagonal rings are fitted onto the sliding sleeve nuts.

[0010] As a preferred embodiment, the side-pass filter mechanism also includes a strip tube, a sealing insert, an arc-shaped sealing strip, and a rectangular sealing strip. The outer wall of the side-pass pipe is provided with a strip tube, which is connected to the side-pass pipe. The inner wall of the strip tube is machined with a groove, and a rectangular sealing strip is provided in the groove. The sealing insert is inserted through the rectangular sealing strip, and an arc-shaped sealing strip is provided at the lower end of the sealing insert.

[0011] The beneficial effects of this utility model are as follows: This utility model, through the cooperation of the underfloor heating pipe mechanism, L-shaped legs and sealing disc, ensures that when the connection is normal, the underfloor heating pipe mechanism opens the sealing disc through the L-shaped legs to ensure smooth flow of underfloor heating water. When the underfloor heating pipe mechanism accidentally falls off, the instantaneous change in water pressure inside the pipe directly drives the sealing disc to quickly move downward, automatically sealing the water outlet at the lower end of the pipe. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention in use. Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the half-section three-dimensional structure of this utility model; Figure 4 This is a three-dimensional structural diagram of the valve pipe; Figure 5 This is a three-dimensional structural diagram of the internal connecting tube and sealing ring; Figure 6 This is a schematic diagram of the three-dimensional structure of the strip groove; Figure 7 This is a schematic diagram of the half-section three-dimensional structure of the valve pipe; Figure 8 A three-dimensional structural diagram of the side-pass filter mechanism; Figure 9 A three-dimensional structural diagram of the sealing insert; Figure 10 This is a three-dimensional structural diagram of a threaded cap; Figure 11 This is a schematic diagram of the three-dimensional structure of the filter tube; Figure 12 This is a schematic diagram of the three-dimensional structure of a strip tube; Figure 13 This is a three-dimensional structural diagram of the underfloor heating pipe system.

[0013] In the diagram: 3-1-Valve pipe; 3-11-Pipe body; 3-11-1-External thread; 3-11-2-Expansion cavity; 3-11-3-Annular groove; 3-11-4-Strip groove; 3-12-Ball valve; 3-13-Knob; 3-14-Connecting threaded pipe; 3-15-Side-through pipe head; 3-16-Internal connecting pipe; 3-16-1-Sliding hole; 3-17-Sealing ring; 3-20-Connecting rod; 3-18-Sealing round plate; 3-19-L-shaped leg; 3-2-Side passage Filter mechanism; 3-22-Strip tube; 3-22-1-Mouth; 3-23-Sealing insert plate; 3-24-Arc-shaped sealing strip; 3-29-Rectangular sealing strip; 3-21-Side passage pipe; 3-25-Threaded cap; 3-25-1-Perforation; 3-26-Filter tube; 3-27-Pull rod; 3-28-Sealing ring; 3-4-Underfloor heating pipe mechanism; 3-41-Underfloor heating pipe fittings; 3-42-Clamp; 3-43-Sliding nut; 3-44-Hexagonal ring; 1-Main pipe of manifold. Detailed Implementation

[0014] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0015] Specific implementation method one: Combining Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 This embodiment describes a multi-functional branch valve for a floor heating manifold, comprising a valve pipe 3-1, a side-pass filter mechanism 3-2, and a floor heating pipe mechanism 3-4. The floor heating pipe mechanism 3-4 is provided at the lower end of the valve pipe 3-1, and the side-pass filter mechanism 3-2 is provided on the outer wall of the valve pipe 3-1. Valve pipe 3-1 includes pipe body 3-11, ball valve 3-12, knob 3-13, connecting threaded pipe 3-14, side-through pipe head 3-15, internal connecting pipe 3-16, sealing rubber ring 3-17, connecting rod 3-20, sealing circular plate 3-18, and two L-shaped legs 3-19. The upper end of pipe body 3-11 is provided with connecting threaded pipe 3-14. Ball valve 3-12 is built into pipe body 3-11. Connecting rod 3-20 passes through pipe body 3-11 along its thickness direction. One end of the connecting rod 3-20 is equipped with a ball valve 3-12, and the other end is equipped with a knob 3-13. A dynamic sealing structure is provided between the pipe body 3-11 and the connecting rod 3-20 passing through it. A side-through pipe head 3-15 is provided on the pipe body 3-11, and a side-through filter mechanism 3-2 is provided on the side-through pipe head 3-15. An inner connecting pipe 3-16 is provided at the lower end of the pipe body 3-11, and a floor heating pipe mechanism 3- is fitted on the inner connecting pipe 3-16. 4. Two sliding holes 3-16-1 are machined on the inner connecting pipe 3-16. External threads 3-11-1 are machined circumferentially on the lower outer wall of the pipe body 3-11. The underfloor heating pipe mechanism 3-4 is threadedly connected to the external threads 3-11-1. An annular groove 3-11-3 is provided circumferentially on the lower end face of the pipe body 3-11. A sealing ring 3-17 is installed inside the annular groove 3-11-3. Two strip-shaped grooves 3-11-4 are machined on the lower end face of the pipe body 3-11. The grooves 3-11-4 are connected to a sliding hole 3-16-1. Two L-shaped legs 3-19 are placed in the two grooves 3-11-4 respectively. Each L-shaped leg 3-19 is slidably set in the sliding hole 3-16-1 corresponding to its position. The two L-shaped legs 3-19 are respectively set at the lower end of the sealing circular plate 3-18. An expansion cavity 3-11-2 is machined inside the tube body 3-11. The sealing circular plate 3-18 is placed in the expansion cavity 3-11-2.

[0016] Rotating knob 3-13 controls the rotation of ball valve 3-12, thereby controlling the opening or closing of the underfloor heating water in valve pipe 3-1. The expansion cavity 3-11-2 expands the space of the internal area of ​​valve pipe 3-1, ensuring that the sealing disc 3-18 does not affect the normal water flow rate of valve pipe 3-1. The branch valve is connected to the main pipe 1 of the manifold via threaded pipe 3-14.

[0017] Specific Implementation Method Two: This implementation method is a further limitation of Specific Implementation Method One. The side-through filtration mechanism 3-2 includes a side-through pipe 3-21, a threaded cap 3-25, a filter pipe 3-26, a pull rod 3-27, and a sealing ring 3-28. One end of the side-through pipe 3-21 is set on the side-through pipe head 3-15. The side-through pipe 3-21 is connected to the pipe body 3-11. The other end of the side-through pipe 3-21 is threadedly connected to the threaded cap 3-25. The threaded cap 3-25 has a through hole 3-25-1 processed along its thickness direction. The sealing ring 3-28 is set in the through hole 3-25-1. The pull rod 3-27 passes through the sealing ring 3-28. The filter pipe 3-26 is set at the end of the pull rod 3-27. The filter pipe 3-26 passes through the side-through pipe 3-21 and is placed in the pipe body 3-11.

[0018] By pulling the lever 3-27, the filter tube 3-26 is pushed into the pipe body 3-11, so that the underfloor heating water in the pipe body 3-11 is filtered by the filter tube 3-26. Alternatively, the filter tube 3-26 can be pulled out of the pipe body 3-11 to ensure the water flow rate in the pipe body 3-11.

[0019] Remove the threaded cap 3-25 from the side pipe 3-21, and take it out along with the pull rod 3-27 and the filter pipe 3-26. At this time, the side pipe 3-21 can be used as an interface for pulse cleaning of the floor heating.

[0020] Specific Implementation Method 3: This implementation method is a further limitation of Specific Implementation Method 1 or 2. The underfloor heating pipe mechanism 3-4 includes an underfloor heating pipe fitting 3-41, a clamp 3-42, a sliding nut 3-43, and a hexagonal ring 3-44. The underfloor heating pipe fitting 3-41 is fitted onto the inner connecting pipe 3-16. The end face of the underfloor heating pipe fitting 3-41 is abutted against two L-shaped legs 3-19. The end of the underfloor heating pipe fitting 3-41 is fitted with a clamp 3-42, which is abutted against the inner wall of the sliding nut 3-43. The sliding nut 3-43 is threaded onto the underfloor heating pipe fitting 3-41. The sliding nut 3-43 is threadedly connected to the external thread 3-11-1. The hexagonal ring 3-44 is fitted onto the sliding nut 3-43.

[0021] The underfloor heating pipe fitting 3-41 is fitted onto the inner connecting pipe 3-16 and pushed in, causing the end of the underfloor heating pipe fitting 3-41 to push the two L-shaped legs 3-19 into the pipe body 3-11, thereby causing the sealing circular plate 3-18 to move within the expansion cavity 3-11-2 until the L-shaped legs 3-19 enter the strip groove 3-11-4. The clamp 3-42 abuts against the annular groove 3-11-3 to form a seal. The sliding sleeve nut 3-43 is threaded onto the external thread 3-11-1. At this time, the underfloor heating water enters the expansion cavity 3-11-2 through the pipe body 3-11 and then enters the underfloor heating pipe fitting 3-41.

[0022] When the underfloor heating pipe fitting 3-41 accidentally falls off the pipe body 3-11, the underfloor heating water impacts the sealing disc 3-18, causing the sealing disc 3-18 to move downwards and seal the outlet at the lower end of the pipe body 3-11. This achieves the purpose of sealing the pipe body 3-11 immediately, preventing water accumulation indoors and avoiding property damage.

[0023] Specific Implementation Method Four: This implementation method further defines Specific Implementation Method One, Two, or Three. The side-pass filter mechanism 3-2 also includes a strip tube 3-22, a sealing plate 3-23, an arc-shaped sealing strip 3-24, and a rectangular sealing strip 3-29. The strip tube 3-22 is provided on the outer wall of the side-pass pipe 3-21. The strip tube 3-22 is connected to the side-pass pipe 3-21. The inner wall of the strip tube 3-22 is machined with a groove 3-22-1. The rectangular sealing strip 3-29 is provided in the groove 3-22-1. The sealing plate 3-23 passes through the rectangular sealing strip 3-29. The lower end of the sealing plate 3-23 is provided with an arc-shaped sealing strip 3-24.

[0024] The rectangular sealing strip 3-29 serves a sealing function. Pull out the filter tube 3-26 and bring it close to the threaded cap 3-25. At this time, push the sealing insert 3-23 downward so that the sealing insert 3-23 is inserted into the side pipe 3-21, sealing the side pipe 3-21. The arc-shaped sealing strip 3-24 serves to enhance the sealing effect. At this time, the side pipe 3-21 is no longer connected to the pipe body 3-11. Remove the threaded cap 3-25 from the side pipe 3-21, take out the filter tube 3-26, clean it, and reinstall it. This achieves the purpose of cleaning the filter tube 3-26 without closing the valve, avoiding the entry of a large amount of air into the underfloor heating fitting 3-41 when cleaning the filter tube 3-26 with the valve closed.

[0025] Working principle: When the underfloor heating pipe mechanism 3-4 is normally installed on the connecting pipe 3-16, its interface end face will push the L-shaped leg 3-19 inward until the L-shaped leg 3-19 is embedded in the strip groove 3-11-4, thereby pushing the sealing plate 3-18 upward, keeping the outlet at the lower end of the pipe body 3-11 unobstructed, and allowing the underfloor heating water to flow smoothly into the underfloor heating pipe mechanism 3-4; once the underfloor heating pipe mechanism 3-4 is accidentally detached due to external force or aging, the underfloor heating water in the pipe body 3-11 will instantly impact the sealing plate 3-18, and the sealing plate 3-18 will quickly move down under the action of water pressure, sticking to the outlet at the lower end of the pipe body 3-11 to form a seal, cutting off the water flow immediately, preventing the underfloor heating water from rushing into the room, and avoiding water accumulation and property damage.

Claims

1. A multi-functional branch valve for a floor heating manifold, characterized in that: It includes a valve pipe (3-1), a side-pass filter mechanism (3-2), and a floor heating pipe mechanism (3-4). The floor heating pipe mechanism (3-4) is installed at the lower end of the valve pipe (3-1), and the side-pass filter mechanism (3-2) is installed on the outer wall of the valve pipe (3-1). The valve pipe (3-1) includes a pipe body (3-11), a ball valve (3-12), a knob (3-13), a connecting threaded pipe (3-14), a side-through pipe head (3-15), an internal connecting pipe (3-16), a sealing ring (3-17), a connecting rod (3-20), a sealing disc (3-18), and two L-shaped legs (3-19). The upper end of the pipe body (3-11) is equipped with a connecting threaded pipe (3-14). The ball valve (3-12) is built into the pipe body (3-11). The pipe body (3-11) extends along its thickness... A connecting rod (3-20) is inserted in the direction of the pipe body (3-11). A ball valve (3-12) is installed at one end of the connecting rod (3-20), and a knob (3-13) is installed at the other end of the connecting rod (3-20). A side-through pipe head (3-15) is installed on the pipe body (3-11), and a side-through filter mechanism (3-2) is installed on the side-through pipe head (3-15). An inner connecting pipe (3-16) is installed at the lower end of the pipe body (3-11), and a floor heating pipe mechanism (3-4) is fitted on the inner connecting pipe (3-16). 6) Two sliding holes (3-16-1) are machined on the upper part. External threads (3-11-1) are machined along the circumference of the lower outer wall of the pipe body (3-11). The underfloor heating pipe mechanism (3-4) is threadedly connected to the external threads (3-11-1). An annular groove (3-11-3) is provided along the circumference of the lower end face of the pipe body (3-11). A sealing ring (3-17) is installed inside the annular groove (3-11-3). Two strip grooves (3-11-4) are machined on the lower end face of the pipe body (3-11). 11-4) is connected to a sliding hole (3-16-1) respectively. Two L-shaped legs (3-19) are respectively placed in the two strip grooves (3-11-4). Each L-shaped leg (3-19) is slidably set in the sliding hole (3-16-1) corresponding to its position. The two L-shaped legs (3-19) are respectively set at the lower end of the sealing circular plate (3-18). An expansion cavity (3-11-2) is machined in the tube body (3-11). The sealing circular plate (3-18) is placed in the expansion cavity (3-11-2).

2. The multi-functional branch valve for a floor heating manifold according to claim 1, characterized in that: The side-pass filter mechanism (3-2) includes a side-pass pipe (3-21), a threaded cap (3-25), a filter pipe (3-26), a pull rod (3-27), and a sealing ring (3-28). One end of the side-pass pipe (3-21) is set on the side-pass pipe head (3-15). The side-pass pipe (3-21) is connected to the pipe body (3-11). The other end of the side-pass pipe (3-21) is threadedly connected to the threaded cap (3-25). The threaded cap (3-25) has a through hole (3-25-1) processed along its thickness direction. A sealing ring (3-28) is set in the through hole (3-25-1). A pull rod (3-27) is passed through the sealing ring (3-28). A filter pipe (3-26) is set at the end of the pull rod (3-27). The filter pipe (3-26) is passed through the side-pass pipe (3-21) and placed in the pipe body (3-11).

3. A multi-functional branch valve for a floor heating manifold according to claim 1, characterized in that: The underfloor heating pipe mechanism (3-4) includes an underfloor heating pipe fitting (3-41), a clamp (3-42), a sliding nut (3-43), and a hexagonal ring (3-44). The underfloor heating pipe fitting (3-41) is fitted onto the inner connecting pipe (3-16). The end face of the underfloor heating pipe fitting (3-41) rests against two L-shaped legs (3-19). The end of the underfloor heating pipe fitting (3-41) is fitted with a clamp (3-42), which rests against the inner wall of the sliding nut (3-43). The sliding nut (3-43) is threaded through the underfloor heating pipe fitting (3-41). The sliding nut (3-43) is threaded into the external thread (3-11-1). The hexagonal ring (3-44) is fitted onto the sliding nut (3-43).

4. A multi-functional branch valve for a floor heating manifold according to claim 2, characterized in that: The side-pass filter mechanism (3-2) also includes a strip tube (3-22), a sealing plate (3-23), an arc-shaped sealing strip (3-24), and a rectangular sealing strip (3-29). The strip tube (3-22) is provided on the outer wall of the side-pass pipe (3-21). The strip tube (3-22) is connected to the side-pass pipe (3-21). The inner wall of the strip tube (3-22) is machined with a groove (3-22-1). The rectangular sealing strip (3-29) is provided in the groove (3-22-1). The sealing plate (3-23) passes through the rectangular sealing strip (3-29). The lower end of the sealing plate (3-23) is provided with an arc-shaped sealing strip (3-24).

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