A water supply control valve with antifreeze and leak-proof structure

Abstract

This invention proposes a water supply control valve with an anti-freeze and leak-proof structure, comprising a valve body and a pilot valve control assembly. The pilot valve control assembly is disposed between the inlet chamber and the outlet chamber of the valve body. The inlet chamber and the outlet chamber are respectively connected to the inlet pipe and the outlet pipe of the valve body. A detachable filter body is installed inside the outlet pipe. The filter body includes a filter housing and a filter assembly arranged sequentially from the outside to the inside. The filter housing has a filter channel inside, and the filter assembly is installed inside the filter channel. One end of the filter channel has an opening for inserting the filter assembly and an inlet connecting to the outlet chamber, and the other end has an outlet. Several first sealing rings are installed on the outside of the filter housing. This water supply control valve has a good sealing effect and can avoid leakage problems caused by low-temperature freezing and cracking.

Description

[Technical Field]

[0001] This invention relates to the technical field of valve bodies, and in particular to a water supply control valve with an antifreeze and leak-proof structure. [Background Technology]

[0002] With the general increase in people's awareness of water safety and health, the requirements for the water quality of some domestic water are relatively high, and it is necessary to pre-filter the water in the pipe network. Generally, water supply control valves with filters are used for pre-filtration before connecting to household appliances such as water purifiers and water heaters.

[0003] The existing filter installation structure of the water supply control valve is as follows: Figures 1 to 3 As shown, the filter assembly 2 is installed inside the valve body 10, and the outlet end of the valve body 10 is sealed by the filter housing 1 at one end, thus fixing the filter assembly 2 inside the valve body 10. However, the sealing effect between the filter housing and the valve body is poor, and the filter assembly has a large water storage space. When freezing occurs at low temperatures, the filter housing is prone to cracking, and leakage will occur when the temperature returns to normal. [Summary of the Invention]

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a water supply control valve with an antifreeze and leak-proof structure, which has a good sealing effect and can avoid leakage problems caused by low-temperature freezing and cracking.

[0005] To achieve the above objectives, the present invention proposes a water supply control valve with an anti-freeze and leak-proof structure, comprising a valve body and a pilot valve control assembly. The pilot valve control assembly is disposed between the inlet chamber and the outlet chamber of the valve body. The inlet chamber and the outlet chamber are respectively connected to the inlet pipe and the outlet pipe of the valve body. A detachable filter body is installed inside the outlet pipe. The filter body includes a filter housing and a filter assembly arranged sequentially from the outside to the inside. The filter housing has a filter channel inside. The filter assembly is installed in the filter channel. One end of the filter channel has an opening for inserting the filter assembly and an inlet connecting to the outlet chamber. The other end has an outlet. Several first sealing rings are installed on the outside of the filter housing.

[0006] Preferably, the filter housing has at least one first sealing groove at one end near the water inlet and at least two second sealing grooves at the other end, with a first sealing ring installed on the first sealing groove and the second sealing groove.

[0007] Preferably, the filter assembly is fitted with at least one second sealing ring.

[0008] Preferably, the filter assembly has a third sealing groove on the outer wall facing the outlet end, and a second sealing ring is installed on the third sealing groove.

[0009] Preferably, the filter housing has a positioning clip at one end with the water outlet, and the water outlet pipe has a positioning groove that matches the positioning clip.

[0010] Preferably, the end of the filter assembly has a positioning protrusion that engages with the water inlet.

[0011] Preferably, the filter body and the valve body are connected by a snap-fit ​​mechanism.

[0012] Preferably, the filter body is connected to the valve body by a pin, the valve body has a slot into which the pin can be inserted, and the filter housing has a snap-fit ​​groove at the position opposite to the slot.

[0013] The beneficial effects of this invention are as follows: By encasing the filter assembly in a filter housing structure, this invention reduces the internal water storage space of the filter assembly, minimizing deformation caused by freezing of internal water and thus reducing the occurrence of rupture. Furthermore, by adding a sealing ring to the filter housing, a double leak-proof effect is achieved, preventing leakage caused by damage.

[0014] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. [Attached Image Description]

[0015] Figure 1 This is a schematic diagram of the structure of an existing water supply control valve;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of an existing water supply control valve;

[0017] Figure 3 This is a schematic diagram of the filter element installed inside an existing water supply control valve;

[0018] Figure 4 This is a schematic diagram of a water supply control valve with an antifreeze and leak-proof structure according to the present invention;

[0019] Figure 5 This is a cross-sectional schematic diagram of a water supply control valve with an antifreeze and leak-proof structure according to the present invention;

[0020] Figure 6 This is a schematic diagram of the filter body of a water supply control valve with an antifreeze and leak-proof structure according to the present invention;

[0021] Figure 7 This is a schematic diagram of the cross-sectional structure of the filter body of a water supply control valve with an antifreeze and leak-proof structure according to the present invention.

Detailed Implementation Methods

[0022] See Figure 4 and Figure 5 This invention discloses a water supply control valve with an anti-freeze and leak-proof structure, comprising a valve body 10 and a pilot valve control assembly 20. The pilot valve control assembly 20 is disposed between the inlet chamber 101 and the outlet chamber 102 of the valve body 10. The inlet chamber 101 and the outlet chamber 102 are respectively connected to the inlet pipe 103 and the outlet pipe 104 of the valve body 10. A detachable filter body is installed inside the outlet pipe 104. The filter body includes a filter housing 1 and a filter assembly 2 arranged sequentially from the outside to the inside. The interior of the filter housing 1... The filter has a filter channel 11, and the filter assembly 2 is installed in the filter channel 11. One end of the filter channel 11 has an opening for inserting the filter assembly 2 and an inlet 12 that connects to the water outlet chamber 102. The other end has an outlet 13. Several first sealing rings 16 are installed on the outside of the filter housing 1. The first sealing rings 16 can fit tightly with the inner wall of the water outlet pipe 104. When the filter housing 1 is damaged, the reliability of the seal between the filter housing 1 and the water outlet pipe 104 is guaranteed, and leakage is avoided.

[0023] Further, see Figure 6 and Figure 7 The filter housing 1 has at least one first sealing groove 14 at one end near the water inlet 12 and at least two second sealing grooves 15 at the other end. First sealing rings 16 are installed on the first sealing groove 14 and the second sealing grooves 15. In this embodiment, the filter housing 1 is provided with three sealing rings, one installed on the first sealing groove 14 and the other two installed on the two second sealing grooves 15, which has a double sealing effect and avoids leakage caused by damage to the filter housing 1.

[0024] Further, see Figure 7 The filter assembly 2 is fitted with at least one second sealing ring 22. In this embodiment, the outer wall of the filter assembly 2 facing the outlet 13 is provided with a third sealing groove 21, and the second sealing ring 22 is installed on the third sealing groove 21 to prevent unfiltered pipe network water from flowing directly out through the gap between the inner wall of the filter housing 1 and the outer wall of the filter assembly 2, thus affecting the filtration effect.

[0025] Further, see Figure 4 and Figure 7 The filter housing 1 has an outwardly extending positioning card 17 at one end of the outlet 13. The outlet pipe 104 has a positioning groove 105 that matches the positioning card 17, which can position the circumferential installation angle of the filter housing 1 and ensure that the inlet 12 of the filter housing 1 faces the outlet of the outlet chamber 102.

[0026] Further, see Figure 7The filter assembly 2 has an outwardly extending positioning protrusion 23 at its end, which engages with the water inlet 12 to circumferentially limit the position of the filter assembly 2.

[0027] Further, see Figures 3 to 7 The filter body and valve body 10 are connected by a snap-fit ​​mechanism. In this embodiment, the filter body is connected to the valve body 10 by a pin. The valve body 10 has a slot 106 into which the pin can be inserted. The filter housing 1 has a snap-fit ​​groove 18 at a position opposite to the slot 106. In this embodiment, a U-shaped pin is used to fix the filter body. The valve body 10 has four slots 106, which are arranged in pairs opposite to each other. The filter housing 1 has semi-circular snap-fit ​​grooves 18 symmetrically arranged on both sides.

[0028] Further, see Figure 7 The outlet 13 is also equipped with a locking member 131, a fixing member 132, and an O-ring 133. The inner cavity of the fixing member 132 has an inclined surface for driving the locking member 131 to retract radially.

[0029] The working process of this invention:

[0030] This invention discloses a water supply control valve with an anti-freeze and leak-proof structure. In use, after the pilot valve control component 20 is opened, water from the pipeline is discharged from the outlet chamber 102, first entering the filter channel 11 through the inlet 12, then passing through the filter assembly 2 for filtration, and finally discharged from the outlet 13, completing the filtration process. When the filter assembly 2 needs to be replaced, simply remove the pin to take the filter body out of the valve body 1, then install the new filter assembly 2 into the filter channel 11, so that the positioning protrusion 23 engages with the groove of the inlet 12, then install the filter housing 1 equipped with the filter assembly 2 onto the valve body 1 until the positioning clip 17 engages with the positioning groove 105, and finally lock it with the pin.

[0031] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A water supply control valve with an antifreeze and leak-proof structure, comprising a valve body (10) and a pilot valve control assembly (20), wherein the pilot valve control assembly (20) is disposed between the inlet chamber (101) and the outlet chamber (102) of the valve body (10), the inlet chamber (101) and the outlet chamber (102) are respectively connected to the inlet pipe (103) and the outlet pipe (104) of the valve body (10), wherein a detachable filter element is installed in the outlet pipe (104), characterized in that: The filter body includes a filter housing (1) and a filter assembly (2) arranged sequentially from the outside to the inside. The filter housing (1) has a filter channel (11) inside. The filter assembly (2) is installed in the filter channel (11). One end of the filter channel (11) has an opening for inserting the filter assembly (2) and an inlet (12) communicating with the water outlet chamber (102). The other end has an outlet (13). The filter housing (1) is equipped with a plurality of first sealing rings (16) on its exterior. The filter housing (1) has at least one first sealing groove (14) at one end near the inlet (12) and at least one first sealing groove (14) at the other end. It has two second sealing grooves (15), and a first sealing ring (16) is installed on the first sealing groove (14) and the second sealing groove (15). The filter housing (1) has a positioning card (17) at one end with a water outlet (13). The water outlet pipe (104) has a positioning groove (105) that matches the positioning card (17). The filter body and the valve body (10) are connected by a snap-fit. The filter body is connected to the valve body (10) by a pin. The valve body (10) has a slot (106) for the pin to extend into. The filter housing (1) has a snap-fit ​​groove (18) at the position opposite to the slot (106).

2. A water supply control valve with an antifreeze and leak-proof structure as described in claim 1, characterized in that: The filter assembly (2) is fitted with at least one second sealing ring (22).

3. A water supply control valve with an antifreeze and leak-proof structure as described in claim 1, characterized in that: The filter assembly (2) has a third sealing groove (21) on the outer wall facing the outlet (13), and a second sealing ring (22) is installed on the third sealing groove (21).

4. A water supply control valve with an antifreeze and leak-proof structure as described in claim 1, characterized in that: The filter assembly (2) has a positioning protrusion (23) at its end, which engages with the water inlet (12).

Images