CN210066892U - Valve core type eccentric joint with backwater circulation channel - Google Patents

Abstract

A valve core type eccentric joint with a return water circulation channel comprises a hot water end joint and a cold water end joint; the hot water end joint comprises a wall-in end hot water interface and a faucet end hot water interface eccentrically communicated with the wall-in end hot water interface, wherein the faucet end hot water interface is provided with a hot water end side wall opening; the cold water end connector comprises a wall-in end cold water interface and a tap end cold water interface eccentrically communicated with the wall-in end cold water interface, wherein the tap end cold water interface is provided with a cold water end side wall open hole, the middle part of the tap end cold water interface is provided with a U-shaped piston with an opening towards the bottom of the tap end cold water interface, the top of the U-shaped piston is provided with a water passing open hole, the port of the tap end cold water interface is provided with a hole limiting sheet, and a reset spring is arranged between the U-shaped piston and the hole limiting sheet; there is a check valve cartridge in the bridging conduit.

Description

Valve core type eccentric joint with backwater circulation channel

Technical Field

The valve core type eccentric joint with water returning circulation passage has the functions of connecting the tap and the pipeline inside the wall, providing temperature controlled circulation passage, reverse isolation and negative pressure isolation for the cold water in the hot water pipeline.

Background

With the continuous maturity of the circulation technology, people's consciousness on saving the abandoned water is improved. Usually, a special water return pipe is installed during decoration to provide a circulation passage. However, in most of the finished environments, the special pipeline cannot be constructed, so that the environment is difficult to recycle, and particularly, the wall-mounted faucet cannot be realized. The invention aims to change an eccentric joint for connecting a faucet and a pipeline in a wall into an eccentric joint with a water return channel.

Disclosure of Invention

A valve core type eccentric joint with a backwater circulation channel comprises a hot water end joint 3 and a cold water end joint 23; the hot water end connector 3 comprises a wall-in end hot water interface 5 and a faucet end hot water interface 7 eccentrically communicated with the wall-in end hot water interface 5, wherein a hot water end side wall opening 9 is formed in the faucet end hot water interface 7; the cold water end connector 23 comprises a wall-in end cold water interface 25 and a tap end cold water interface 27 eccentrically communicated with the wall-in end cold water interface 25, wherein a cold water end side wall open hole 29 is formed in the tap end cold water interface 27, a U-shaped piston 31 with an opening towards the bottom of the tap end cold water interface 27 is arranged in the middle of the tap end cold water interface 27, a water passing open hole 33 is formed in the top of the U-shaped piston 31, a hole-containing limiting sheet 37 is arranged at the port of the tap end cold water interface 27, a return spring 39 is arranged between the U-shaped piston 31 and the hole-containing limiting sheet 37, a bridging pipeline 41 is arranged between the tap end hot water interface 7 and the tap end cold water interface 27, and a channel is established between the hot water end side wall open hole 9 and the; a check valve core 17 is arranged in the bridging pipeline 41, and the check valve core 17 can allow water flow to flow from the tap end hot water interface 7 to the tap end cold water interface 27 and can not pass through the tap end cold water interface in the reverse direction; when the pressure in the hot water end fitting 3 is greater than the pressure in the cold water end fitting 23, the pressure difference forces the check valve core 17 to open, and the water body flows into the bridge pipe 41 from the tap end hot water port 7, then enters the tap end cold water port 27 through the tap cold water end side wall opening 29, and finally enters the cold water pipe from the water passing opening 33, as shown in fig. 1, wherein the dotted line in the figure represents a water flow path; when the pressure difference disappears, as shown in figure 2, the water flow also stops naturally, due to the one-way passing function of the check valve core 17, even if the pressure in the cold water end connector 23 increases to be larger than that of the hot water end connector 3, the water body can not flow into the hot water end connector 3 from the cold water end connector 23, when people simply use cold water, as shown in figure 3, according to the known principle, the water flow flowing from the wall-inlet end cold water connector 25 to the tap end cold water connector 27 at a high speed can generate negative pressure and cause the suction effect on the hot water end connector 3, at this time, as the water flow flows from the wall-inlet end cold water connector 25 to the tap end cold water connector 27, the U-shaped piston 31 can move to one end of the hole-containing limiting piece 37 under the impact of the water flow, the outer wall of the U-shaped piston 31 causes the side wall open hole 29 of the cold water to be blocked, the suction force;

further, a bulb 35 is arranged at the bottom of the cold water interface 27 at the faucet end, and a top rod of the bulb 35 extends into the bottom of the U-shaped piston 31, as shown in fig. 4, when the pressure in the hot water end connector 3 is greater than the pressure in the cold water end connector 23, a water body flows into the cold water interface 27 at the faucet end, flows into the cold water interface 25 at the wall end from the water passing opening 33, and then flows into a designated container, and a dotted line in the figure indicates a water body flow path; when the temperature of the water flowing through the thermal bulb 35 rises, the thermal bulb ejector rod gradually extends out and pushes the U-shaped piston 31 to move towards one end of the limiting piece 37 with the hole and compress the return spring 39, the outer wall of the U-shaped piston 31 can gradually block the hole 29 on the side wall of the cold water end along with the movement of the U-shaped piston 31, and the water can be completely blocked when reaching the specified temperature, as shown in figure 5, the water flow is completely stopped, so that the automatic control mechanism of temperature control and flow cutoff for supporting peripheral equipment is achieved, and the U-shaped spring moves towards one end of the thermal bulb 35 under the action of the return spring 39 after the water temperature is cooled, so that the thermal bulb ejector rod; when people simply use cold water, as shown in fig. 6, water flows from the wall-in end cold water port 25 to the faucet end cold water port 27, due to the impact of the water flows, the U-shaped piston 31 moves towards one end of the limiting piece 37 with the hole and compresses the return spring 39, the outer wall of the U-shaped piston 31 moves to gradually block the open hole 29 on the side wall of the cold water end, so that the water in the hot water end connector 3 is prevented from being sucked by negative pressure generated when the water flows, and the U-shaped piston is reset under the action of the return spring 39 after the water flows stop.

Drawings

FIG. 1 is a schematic view of a state of returning water

FIG. 2 is a schematic view of a state in which water return is completed

FIG. 3 is a schematic view of the sealing of the passage with cold water alone

FIG. 4 is a schematic view showing the state of the water after the heating bag returns

FIG. 5 is a schematic view showing a return water completion state after heating control

Fig. 6 is a schematic view showing a state where cold water is used alone.

Detailed Description

A valve core type eccentric joint with a backwater circulation channel comprises a hot water end joint 3 and a cold water end joint 23; the hot water end connector 3 comprises a wall-in end hot water interface 5 and a faucet end hot water interface 7 eccentrically communicated with the wall-in end hot water interface 5, wherein a hot water end side wall opening 9 is formed in the faucet end hot water interface 7; the cold water end connector 23 comprises a wall-in end cold water interface 25 and a tap end cold water interface 27 eccentrically communicated with the wall-in end cold water interface 25, wherein a cold water end side wall open hole 29 is formed in the tap end cold water interface 27, a U-shaped piston 31 with an opening towards the bottom of the tap end cold water interface 27 is arranged in the middle of the tap end cold water interface 27, a water passing open hole 33 is formed in the top of the U-shaped piston 31, a hole-containing limiting sheet 37 is arranged at the port of the tap end cold water interface 27, a return spring 39 is arranged between the U-shaped piston 31 and the hole-containing limiting sheet 37, a bridging pipeline 41 is arranged between the tap end hot water interface 7 and the tap end cold water interface 27, and a channel is established between the hot water end side wall open hole 9 and the; a check valve core 17 is arranged in the bridging pipeline 41, and the check valve core 17 can allow water flow to flow from the tap end hot water interface 7 to the tap end cold water interface 27 and can not pass through the tap end cold water interface in the reverse direction; when the pressure in the hot water end fitting 3 is greater than the pressure in the cold water end fitting 23, the pressure difference forces the check valve core 17 to open, and the water body flows into the bridge pipe 41 from the tap end hot water port 7, then enters the tap end cold water port 27 through the tap cold water end side wall opening 29, and finally enters the cold water pipe from the water passing opening 33, as shown in fig. 1, wherein the dotted line in the figure represents a water flow path; when the pressure difference disappears, as shown in figure 2, the water flow also stops naturally, due to the one-way passing function of the check valve core 17, even if the pressure in the cold water end connector 23 increases to be larger than that of the hot water end connector 3, the water body can not flow into the hot water end connector 3 from the cold water end connector 23, when people simply use cold water, as shown in figure 3, according to the known principle, the water flow flowing from the wall-inlet end cold water connector 25 to the tap end cold water connector 27 at a high speed can generate negative pressure and cause the suction effect on the hot water end connector 3, at this time, as the water flow flows from the wall-inlet end cold water connector 25 to the tap end cold water connector 27, the U-shaped piston 31 can move to one end of the hole-containing limiting piece 37 under the impact of the water flow, the outer wall of the U-shaped piston 31 causes the side wall open hole 29 of the cold water to be blocked, the suction force;

further, a bulb 35 is arranged at the bottom of the cold water interface 27 at the faucet end, and a top rod of the bulb 35 extends into the bottom of the U-shaped piston 31, as shown in fig. 4, when the pressure in the hot water end connector 3 is greater than the pressure in the cold water end connector 23, a water body flows into the cold water interface 27 at the faucet end, flows into the cold water interface 25 at the wall end from the water passing opening 33, and then flows into a designated container, and a dotted line in the figure indicates a water body flow path; when the temperature of the water flowing through the thermal bulb 35 rises, the thermal bulb ejector rod gradually extends out and pushes the U-shaped piston 31 to move towards one end of the limiting piece 37 with the hole and compress the return spring 39, the outer wall of the U-shaped piston 31 can gradually block the hole 29 on the side wall of the cold water end along with the movement of the U-shaped piston 31, and the water can be completely blocked when reaching the specified temperature, as shown in figure 5, the water flow is completely stopped, so that the automatic control mechanism of temperature control and flow cutoff for supporting peripheral equipment is achieved, and the U-shaped spring moves towards one end of the thermal bulb 35 under the action of the return spring 39 after the water temperature is cooled, so that the thermal bulb ejector rod; when people simply use cold water, as shown in fig. 6, water flows from the wall-in end cold water port 25 to the faucet end cold water port 27, due to the impact of the water flows, the U-shaped piston 31 moves towards one end of the limiting piece 37 with the hole and compresses the return spring 39, the outer wall of the U-shaped piston 31 moves to gradually block the open hole 29 on the side wall of the cold water end, so that the water in the hot water end connector 3 is prevented from being sucked by negative pressure generated when the water flows, and the U-shaped piston is reset under the action of the return spring 39 after the water flows stop.

Accordingly, it will be appreciated by those skilled in the art that changes may be made thereto without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.

Claims (2)

1. A valve core type eccentric joint with a return water circulation channel comprises a hot water end joint (3) and a cold water end joint (23); the hot water end connector (3) comprises a wall-in end hot water interface (5) and a faucet end hot water interface (7) eccentrically communicated with the wall-in end hot water interface (5), wherein a side wall opening (9) of the hot water end is formed in the faucet end hot water interface (7); the cold water end connector (23) comprises a wall-in end cold water interface (25) and a tap end cold water interface (27) eccentrically communicated with the wall-in end cold water interface (25), wherein a cold water end side wall open hole (29) is formed in the tap end cold water interface (27), a U-shaped piston (31) which is opened to the bottom of the tap end cold water interface (27) is arranged in the middle of the tap end cold water interface (27), a water passing open hole (33) is formed in the top of the U-shaped piston (31), a hole limiting sheet (37) is arranged at the port of the tap end cold water interface (27), a reset spring (39) is arranged between the U-shaped piston (31) and the hole limiting sheet (37), a bridging pipeline (41) is arranged between the tap end hot water interface (7) and the tap end cold water interface (27) to establish a channel between the hot water end side wall open hole (9) and the cold water end side wall open hole; a check valve core (17) is arranged in the bridging pipeline (41), and the check valve core (17) can enable water flow to flow from the tap end hot water interface (7) to the tap end cold water interface (27) and can not pass through in the reverse direction; when the pressure in the hot water end connector (3) is greater than the pressure in the cold water end connector (23), the pressure difference forces the check valve core (17) to open, and water flows into the bridging pipeline (41) from the tap end hot water connector (7) and then enters the tap end cold water connector (27) through the tap end cold water end side wall opening (29); when people simply use cold water, the U-shaped piston (31) can move towards one end of the limiting sheet (37) with the hole under the impact of water flow flowing from the cold water interface (25) at the wall inlet end to the cold water interface (27) at the tap end at a high speed, so that the open hole (29) at the side wall of the cold water end is blocked.

2. The valve core type eccentric joint having a return water circulation passage according to claim 1, wherein: a bulb (35) is arranged at the bottom of the tap end cold water interface (27), a U-shaped piston (31) with an opening towards one end of the bulb (35) is arranged in the middle of the tap end cold water interface (27), a water passing open hole (33) is arranged at the top of the U-shaped piston (31), a bulb warming push rod extends into the bottom of the U-shaped piston (31), a limiting sheet (37) with a hole is arranged at the port of the cold water interface (27) at the tap end, a return spring (39) is arranged between the U-shaped piston (31) and the limiting sheet (37) with the hole, when the temperature of the water flowing through the thermal bulb (35) rises, the thermal bulb ejector rod gradually extends out and pushes the U-shaped piston (31) to move towards one end of the limiting piece (37) with the hole to compress the return spring (39), the end face of the U-shaped piston (31) moves to gradually block the open hole (29) on the side wall of the cold water end, the water is completely blocked when the specified temperature is reached, and the water flow is completely stopped, so that the temperature control and the flow cutoff are realized.

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