Pipeline connection four-way reverser

Abstract

The utility model discloses a pipeline connection four-way reverser which comprises a valve body, and the valve body is provided with a first water inlet, a second water inlet, a first water outlet and a second water outlet. The valve body is communicated with a valve cavity and a mixing cavity, a valve rod is rotatably arranged in the valve cavity, a water control part is slidably arranged in the mixing cavity, a lengthened handle is fixedly connected to the upper end of the valve rod, a driving column is integrally and eccentrically arranged at the lower end of the valve rod, a linear track groove is formed in the side wall of the water control part corresponding to the driving column, and the driving column is in guide fit with the linear track groove. The driving part is used for driving the water control part to slide in the mixing cavity in the first direction, so that the water control part is hermetically matched with the first water inlet or the second water inlet; and the first water inlet and the second water inlet are respectively communicated with the mixing cavity through the corresponding cross-shaped water flow channels at the two ends of the water control piece. By means of multi-stage transmission, the situation that a control piece deviates instantly in the water using process is effectively prevented, and the effect of improving the water outlet flow is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water valves, in particular to a pipeline-connected four-way reversing device. Background Art

[0002] A mixing valve is a commonly used accessory for electric water heaters or gas water heaters. It is mainly used to connect cold and hot water pipes and faucets, pass cold water and hot water into the mixing valve, and then control the mixing ratio of cold water and hot water through the valve core, thereby adjusting the water outlet temperature of the faucet to achieve the purpose of discharging cold water, hot water and warm water.

[0003] The existing Chinese patent with the announcement number CN 2839765Y discloses a three-way stopcock, which adopts a cylindrical valve cavity. On the outer periphery of the valve cavity, three inlet and outlet pipe ports are arranged in an "inverted 'T'" shape, including a top pipe port, a left pipe port and a right pipe port. The rotating valve core located inside the valve cavity is coaxially arranged with the valve cavity, and its cross-section is fan-shaped. The rotating valve core can close any inlet and outlet pipe ports and can open the three inlet and outlet pipe ports at the same time.

[0004] However, the above-mentioned three-way stopcock has the following disadvantages: the water flow rate of the left and right pipe ports is changed by rotating the valve core, so as to adjust the water inlet ratio of hot water and cold water to obtain mixed warm water of a predetermined temperature. However, when the water pressure on one side is too high, this water mixing control structure is prone to cause the rotating valve core to deflect and cause the water temperature to fluctuate. In addition, the left and right pipe ports of the water valve structure have only a single water inlet channel, resulting in insufficient water output, which urgently needs to be improved. Utility Model Content

[0005] The utility model aims to provide a pipeline-connected four-way commutator, which has the effect of multi-stage transmission to effectively prevent the instantaneous deviation of control parts during water use and improve the water flow rate.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions: a pipeline-connected four-way reversing device, comprising a valve body, the valve body is provided with a first water inlet, a second water inlet, a first water outlet and a second water outlet, the first water inlet is used for cold water, the second water inlet is used for hot water, the first water outlet is connected to a bathroom water device, the second water outlet is connected to a kitchen water device, the first water inlet and the second water inlet are arranged at two ends of the valve body in a first direction, the first water outlet and the second water outlet are arranged at two ends of the valve body in a second direction, and the first direction and the second direction are perpendicular to each other;

[0007] The valve body is connected to form a valve cavity and a mixing cavity, the mixing cavity is connected to the first water outlet and the second water outlet, a valve stem is rotatably provided in the valve cavity, a water control member is slidably provided in the mixing cavity, an extended handle is fixedly connected to the upper end of the valve stem, a driving column is integrally and eccentrically provided at the lower end of the valve stem, a linear track groove is provided on the side wall of the water control member corresponding to the driving column, the driving column is guided and matched with the linear track groove to drive the water control member to slide in the mixing cavity along the first direction, so that the water control member is sealed and matched with the first water inlet or the second water inlet;

[0008] Cross-shaped water flow channels are provided at both ends of the water control member, and the first water inlet and the second water inlet are respectively connected to the mixing chamber through the cross-shaped water flow channels corresponding to the two ends of the water control member.

[0009] By adopting the above technical scheme, the valve stem is screwed with an extended handle, and the rotation of the valve stem drives the driving column to rotate with the axis of the valve stem as the center. Under the guidance of the driving column and the linear trajectory groove of the water control member, the water control member slides in the mixing chamber along the first direction, thereby adjusting the water inlet of the first water inlet and the second water inlet, so that the cold water of the first water inlet and the hot water of the second water inlet flow into the mixing chamber through the cross-shaped water flow channels corresponding to the two ends of the water control member and mix. The utility model uses a multi-stage transmission to realize the left and right sliding of the water control member in the mixing chamber, and when the water pressure of the first water inlet or the second water inlet is dialed, the characteristics of the multi-stage transmission can effectively prevent the water control member from being instantly offset, and the situation of instantaneous discharge of cold water or hot water can occur, and the cross-shaped water flow channel can increase the water inlet flow rate to achieve the purpose of large water flow rate. The multi-stage transmission effectively prevents the instantaneous offset of the control member during water use and increases the water flow rate.

[0010] The utility model is further configured as follows: the cross-shaped water flow channel includes a water outlet groove extending along the second direction and a flow groove extending along the third direction; the first direction, the second direction and the third direction are perpendicular to each other; and a water flow space is left between the upper and lower ends of the water control component and the mixing chamber.

[0011] By adopting the above technical solution, part of the water flowing in from the first water inlet and the second water inlet flows into the mixing chamber through the water outlet groove, and the other part flows into the mixing chamber through the flow groove and the water flow space, thereby increasing the water flow entering the mixing chamber, thereby improving the water outlet flow.

[0012] The utility model is further configured as follows: a plurality of first sealing rings are provided on the side wall of the water control member, and the water control member is sealed and matched with the first water inlet or the second water inlet through the corresponding first sealing rings.

[0013] By adopting the above technical solution, when the water control component is sealed at the first water inlet or the second water inlet, the first sealing ring can effectively improve the sealing between the water control component and the inner wall of the first water inlet or the second water inlet, thereby improving the water sealing performance.

[0014] The utility model is further configured as follows: the valve stem is provided with at least two annular grooves spaced apart from top to bottom, a second sealing ring is provided in each of the annular grooves, and the valve stem is sealed and matched with the inner wall of the valve cavity through the second sealing ring.

[0015] By adopting the above technical solution, the second sealing ring can effectively improve the water leakage prevention performance between the valve stem and the valve cavity.

[0016] The utility model is further configured as follows: the valve body also includes a valve body and a valve seat fixedly connected to each other, the valve cavity is opened on the valve seat, the mixing cavity, the first water inlet, the second water inlet, the first water outlet and the second water outlet are opened on the valve body, the valve seat is provided with an annular extension portion, the valve body is provided with a mounting hole connected to the mixing cavity, and the valve seat is interference-mounted in the mounting hole through the annular extension portion.

[0017] By adopting the above technical solution, the fixed connection between the valve seat and the valve body is achieved by utilizing the interference fit between the annular extension portion and the valve body mounting hole.

[0018] The utility model is further configured as follows: a third sealing ring is provided in the mounting hole, and the annular extension portion is sealed and matched with the mounting hole through the third sealing ring.

[0019] By adopting the above technical solution, the third sealing ring can improve the water leakage prevention performance when the valve seat is connected to the valve body.

[0020] The utility model is further configured as follows: the valve body is correspondingly connected with a first water inlet joint, a second water inlet joint, a first water outlet joint and a second water outlet joint at the first water inlet, the second water inlet, the first water outlet and the second water outlet.

[0021] By adopting the above technical solution, the first water inlet joint, the second water inlet joint, the first water outlet joint and the second water outlet joint are utilized to conveniently improve the connection convenience between the corresponding water pipe and the valve body.

[0022] The utility model is further configured as follows: the diameter of the extended handle gradually increases from one end close to the valve stem toward one end away from the valve stem, the extended handle is configured as a hollow rod, and a plug is provided at the end of the extended handle.

[0023] By adopting the above technical solution, the hollow rod design of the extended handle is conducive to reducing the overall weight of the utility model, and the conical design of the extended handle can improve the user's grip, and the addition of the plug can effectively prevent dust or water stains from entering the hollow chamber of the extended handle and breeding bacteria.

[0024] The utility model is further configured as follows: a self-lubricating sleeve is provided in the first water inlet and the second water inlet, the outer wall of the self-lubricating sleeve is interference fit with the corresponding first water inlet and the second water inlet, and the self-lubricating sleeve is slidingly fit with both ends of the water control part.

[0025] By adopting the above technical solution, the addition of the self-lubricating sleeve can improve the smoothness of the water control part sliding along the first direction in the mixing chamber, and prevent the water control part from getting stuck when sliding in the mixing chamber.

[0026] The utility model is further configured as follows: the material of the self-lubricating sleeve is set to polytetrafluoroethylene material, the self-lubricating sleeve has an abutment portion extending radially outward on one side of the mixing chamber, the water control part is provided with a stop step corresponding to the abutment portion, and the abutment portion cooperates with the stop step as a limit stop.

[0027] By adopting the above technical scheme and utilizing the high wear resistance and self-lubricating properties of polytetrafluoroethylene material, the sliding smoothness of the water control part in the mixing chamber can be effectively improved, while the wear resistance of the valve body can be improved, thereby extending the service life of the utility model and reducing the replacement frequency of parts. In addition, by utilizing the stopping effect of the stop step and the abutment portion, the sliding stroke of the water control part in the mixing chamber can be limited to prevent the water control part from excessively sliding and getting stuck.

[0028] In summary, the utility model has the following beneficial effects:

[0029] A first water inlet, a second water inlet, a first water outlet and a second water outlet are arranged around the valve body, and the valve stem is screwed by using an extended handle. The rotation of the valve stem drives the driving column to rotate around the axis of the valve stem. Under the guidance of the driving column and the linear track groove of the water control member, the water control member slides in the mixing chamber along the first direction, thereby adjusting the water inlet amount of the first water inlet and the second water inlet, so that the cold water of the first water inlet and the hot water of the second water inlet flow into the mixing chamber through the cross-shaped water flow channels corresponding to the two ends of the water control member and mix. The utility model uses a multi-stage transmission to realize the left and right sliding of the water control member in the mixing chamber, and when the water pressure of the first water inlet or the second water inlet is dialed, the characteristics of the multi-stage transmission can effectively prevent the water control member from being instantly offset, and the situation of instantaneous discharge of cold water or hot water occurs, and the cross-shaped water flow channel can increase the water inlet flow rate to achieve the purpose of large-flow water discharge. The multi-stage transmission has the effect of effectively preventing the instantaneous offset of the control member during water use and increasing the water outlet flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural diagram of a specific embodiment of the present utility model.

[0031] Figure 2 It is a top view of a specific embodiment 1 of the utility model.

[0032] Figure 3 This utility model Figure 2 Cross-sectional view of section AA.

[0033] Figure 4 It is a structural diagram of the valve stem of the utility model.

[0034] Figure 5 It is a structural diagram of the water control component of the utility model.

[0035] Figure 6 It is a longitudinal sectional view of the second specific embodiment of the utility model.

[0036] Figure 7 This utility model Figure 6 A partial enlarged view of area B.

[0037] In the figure: 1. valve body; 2. valve body; 2a. first water inlet; 2b. second water inlet; 2c. first water outlet; 2d. second water outlet; 2e. mixing chamber; 2f. mounting hole; 20. third sealing ring; 21. first water inlet joint; 22. second water inlet joint; 23. first water outlet joint; 24. second water outlet joint; 3. valve seat; 3a. valve chamber; 31. annular extension; 4. water control member; 4a. linear trajectory groove; 4b. cross-shaped water flow channel; 4b1. water outlet groove; 4b2. flow groove; 41. first sealing ring; 42. stop step; 5. valve stem; 5a. annular groove; 50. second sealing ring; 51. extension handle; 511. plug; 52. drive column; 6. self-lubricating sleeve; 61. abutment. DETAILED DESCRIPTION

[0038] The utility model is further described below in conjunction with the accompanying drawings. Specific embodiment 1

[0040] A pipe-connected four-way commutator, such as Figure 1-3 and Figure 5As shown, the valve body 1 includes a first water inlet 2a, a second water inlet 2b, a first water outlet 2c and a second water outlet 2d. The first water inlet 2a is used for cold water, the second water inlet 2b is used for hot water, the first water outlet 2c is connected to a bathroom water device, the second water outlet 2d is connected to a kitchen water device, the first water inlet 2a and the second water inlet 2b are arranged at two ends of the valve body 1 relatively along a first direction, the first water outlet 2c and the second water outlet 2d are arranged at two ends of the valve body 1 relatively along a second direction, and the first direction is perpendicular to the second direction; the valve body 1 is connected to a valve cavity 3a and a mixing cavity 2e, and the mixing cavity 2e is connected to the first water outlet 2c and the second water outlet 2d. The mixing chamber 2e is connected with the water inlet 2d, a valve stem 5 is rotatably provided in the valve chamber 3a, a water control member 4 is slidably provided in the mixing chamber 2e, an extended handle 51 is fixedly connected to the upper end of the valve stem 5, a driving column 52 is integrally and eccentrically provided at the lower end of the valve stem 5, a linear track groove 4a is provided on the side wall of the water control member 4 corresponding to the driving column 52, the driving column 52 is guided and matched with the linear track groove 4a to drive the water control member 4 to slide in the mixing chamber 2e along the first direction, so that the water control member 4 is sealed and matched with the first water inlet 2a or the second water inlet 2b; cross-shaped water flow channels 4b are provided at both ends of the water control member 4, and the first water inlet 2a and the second water inlet 2b are respectively connected with the mixing chamber 2e through the cross-shaped water flow channels 4b corresponding to the two ends of the water control member 4.

[0041] like Figure 3-5 As shown, the cross-shaped water flow channel 4b includes a water outlet groove 4b1 extending through the second direction and a flow groove 4b2 extending through the third direction. The first direction, the second direction and the third direction are perpendicular to each other. A water flow space is left between the upper and lower ends of the water control member 4 and the mixing chamber 2e. Part of the water flowing in from the first water inlet 2a and the second water inlet 2b flows into the mixing chamber 2e through the water outlet groove 4b1, and the other part flows into the mixing chamber 2e through the flow groove 4b2 and the water flow space, thereby increasing the water flow entering the mixing chamber 2e, thereby increasing the water flow rate; a plurality of first sealing rings 41 are provided on the side wall of the water control member 4. The component 4 is sealed with the first water inlet 2a or the second water inlet 2b through the corresponding first sealing ring 41. When the water control component 4 is blocked at the first water inlet 2a or the second water inlet 2b, the first sealing ring 41 can effectively improve the sealing between the water control component 4 and the inner wall of the first water inlet 2a or the second water inlet 2b, thereby improving the water sealing performance; the valve stem 5 is provided with at least two annular grooves 5a spaced from top to bottom, and each annular groove 5a is provided with a second sealing ring 50. The valve stem 5 is sealed with the inner wall of the valve cavity 3a through the second sealing ring 50, and the second sealing ring 50 can effectively improve the water leakage prevention performance between the valve stem 5 and the valve cavity 3a.

[0042] like Figure 1-5As shown, the valve body 1 also includes a valve body 2 and a valve seat 3 which are fixedly connected. The valve cavity 3a is opened on the valve seat 3. The mixing cavity 2e, the first water inlet 2a, the second water inlet 2b, the first water outlet 2c and the second water outlet 2d are opened on the valve body 2. The valve seat 3 is provided with an annular extension portion 31. The valve body 2 is provided with a mounting hole 2f which is connected to the mixing cavity 2e. The valve seat 3 is installed in the mounting hole 2f through the annular extension portion 31. The interference fit between the annular extension portion 31 and the mounting hole 2f of the valve body 2 is used to realize the fixed connection between the valve seat 3 and the valve body 2. A third sealing ring 20 is provided in the mounting hole 2f. The annular extension portion 31 is sealed and cooperated with the mounting hole 2f through the third sealing ring 20. The third sealing ring 20 can improve the anti-leakage performance when the valve seat 3 is connected to the valve body 2; the valve body 2 is correspondingly connected with the first water inlet joint 21, the second water inlet joint 22, the first water outlet joint 23 and the second water outlet joint 24 at the first water inlet 2a, the second water inlet 2b, the first water outlet 2c and the second water outlet 2d. The first water inlet joint 21, the second water inlet joint 22, the first water outlet joint 23 and the second water outlet joint 24 are used to conveniently improve the connection convenience between the corresponding water pipe and the valve body 1.

[0043] like Figure 1-3 As shown, the diameter of the extended handle 51 gradually increases from the end close to the valve stem 5 to the end away from the valve stem 5, the extended handle 51 is configured as a hollow rod, and a plug 511 is provided at the end of the extended handle 51. The extended handle 51 with a hollow rod design is beneficial to reducing the overall weight of the utility model, and the extended handle 51 with a conical design can improve the user's grip. The addition of the plug 511 can effectively prevent dust or water stains from entering the hollow chamber of the extended handle 51 and breeding bacteria.

[0044] The basic working principle of the utility model is: the valve stem 5 is screwed by the extended handle 51, and the rotation of the valve stem 5 drives the driving column 52 to rotate around the axis of the valve stem 5, and under the guidance of the driving column 52 and the linear track groove 4a of the water control member 4, the water control member 4 slides along the first direction in the mixing chamber 2e, thereby adjusting the water inlet amount of the first water inlet 2a and the second water inlet 2b, so that the cold water of the first water inlet 2a and the hot water of the second water inlet 2b flow into the mixing chamber 2e through the cross-shaped water flow channels 4b corresponding to the two ends of the water control member 4 and mix. The utility model uses a multi-stage transmission to realize the left and right sliding of the water control member 4 in the mixing chamber 2e, and when the water pressure of the first water inlet 2a or the second water inlet 2b is dialed, the water control member 4 is used to adjust the water inlet amount of the first water inlet 2a and the second water inlet 2b. The characteristics of the multi-stage transmission can effectively prevent the water control component 4 from being instantly offset, resulting in instantaneous discharge of cold water or hot water, and a cross-shaped water flow channel 4b is set at both ends of the water control component 4. The cross-shaped water flow channel 4b includes a water outlet groove 4b1 that penetrates along the second direction and a flow groove 4b2 that penetrates along the third direction. Part of the water flowing into the first water inlet 2a and the second water inlet 2b flows into the mixing chamber 2e through the water outlet groove 4b1, and the other part flows into the mixing chamber 2e through the flow groove 4b2 and the water flow space, thereby increasing the water flow entering the mixing chamber 2e and achieving the purpose of large-flow water discharge. The multi-stage transmission has the effect of effectively preventing the control component from being instantly offset during water use and increasing the water flow rate. Specific embodiment 2

[0046] A pipe-connected four-way commutator, such as Figure 6-7 As shown, the difference between this embodiment and the specific embodiment 1 is that: a self-lubricating sleeve 6 is provided in the first water inlet 2a and the second water inlet 2b, the outer wall of the self-lubricating sleeve 6 is interference fit with the corresponding first water inlet 2a and the second water inlet 2b, the self-lubricating sleeve 6 is slidably fitted with both ends of the water control member 4, and the addition of the self-lubricating sleeve 6 can improve the smoothness of the water control member 4 sliding along the first direction in the mixing chamber 2e, and prevent the water control member 4 from getting stuck when sliding in the mixing chamber 2e; the material of the self-lubricating sleeve 6 is set to polytetrafluoroethylene material, and the self-lubricating sleeve 6 extends radially outward on one side of the mixing chamber 2e. The abutment portion 61 and the water control member 4 are provided with a stop step 42 corresponding to the abutment portion 61. The abutment portion 61 cooperates with the stop step 42 to limit the stop. By utilizing the high wear resistance and self-lubricating properties of the polytetrafluoroethylene material, the sliding smoothness of the water control member 4 in the mixing chamber 2e can be effectively improved, while the wear resistance of the valve body 2 is improved, thereby extending the service life of the utility model and reducing the replacement frequency of parts. In addition, by utilizing the stopping effect of the stop step 42 and the abutment portion 61, the sliding stroke of the water control member 4 in the mixing chamber 2e can be limited to prevent the water control member 4 from excessively sliding and getting stuck.

[0047] The other structures of this embodiment are consistent with those of the first embodiment and will not be described in detail here.

[0048] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A pipeline-connected four-way reversing device, comprising a valve body (1), characterized in that: The valve body (1) is provided with a first water inlet (2a), a second water inlet (2b), a first water outlet (2c) and a second water outlet (2d); the first water inlet (2a) is used for cold water intake, the second water inlet (2b) is used for hot water intake, the first water outlet (2c) is connected to a bathroom water device, the second water outlet (2d) is connected to a kitchen water device, the first water inlet (2a) and the second water inlet (2b) are arranged at two ends of the valve body (1) in a first direction, and the first water outlet (2c) and the second water outlet (2d) are arranged at two ends of the valve body (1) in a second direction, and the first direction and the second direction are perpendicular to each other; The valve body (1) is connected to a valve chamber (3a) and a mixing chamber (2e), the mixing chamber (2e) is connected to the first water outlet (2c) and the second water outlet (2d), a valve stem (5) is rotatably provided in the valve chamber (3a), a water control member (4) is slidably provided in the mixing chamber (2e), the upper end of the valve stem (5) is fixedly connected to an extended handle (51), the lower end of the valve stem (5) is integrally and eccentrically provided with a driving column (52), a side wall of the water control member (4) is provided with a linear track groove (4a) corresponding to the driving column (52), the driving column (52) and the linear track groove (4a) are guided and matched to drive the water control member (4) to slide in the mixing chamber (2e) along a first direction, so that the water control member (4) is sealed and matched with the first water inlet (2a) or the second water inlet (2b); Cross-shaped water flow channels (4b) are provided at both ends of the water control member (4), and the first water inlet (2a) and the second water inlet (2b) are respectively connected to the mixing chamber (2e) through the corresponding cross-shaped water flow channels (4b) at both ends of the water control member (4).

2. A pipeline-connected four-way commutator according to claim 1, characterized in that: The cross-shaped water flow channel (4b) comprises a water outlet groove (4b1) extending through the second direction and a flow passage groove (4b2) extending through the third direction. The first direction, the second direction and the third direction are perpendicular to each other. A water passage space is left between the upper and lower ends of the water control member (4) and the mixing chamber (2e).

3. A pipeline-connected four-way commutator according to claim 1, characterized in that: The side wall of the water control member (4) is provided with a plurality of first sealing rings (41), and the water control member (4) is sealedly matched with the first water inlet (2a) or the second water inlet (2b) via the corresponding first sealing rings (41).

4. A pipeline-connected four-way commutator according to claim 1, characterized in that: The valve stem (5) is provided with at least two annular grooves (5a) spaced apart from each other from top to bottom, and a second sealing ring (50) is provided in each of the annular grooves (5a). The valve stem (5) is sealed and matched with the inner wall of the valve cavity (3a) through the second sealing ring (50).

5. The pipeline-connected four-way commutator according to claim 1, characterized in that: The valve body (1) further comprises a valve body (2) and a valve seat (3) which are fixedly connected to each other; the valve cavity (3a) is provided on the valve seat (3); the mixing cavity (2e), the first water inlet (2a), the second water inlet (2b), the first water outlet (2c) and the second water outlet (2d) are provided on the valve body (2); the valve seat (3) is provided with an annular extension portion (31); the valve body (2) is provided with an installation hole (2f) which is connected to the mixing cavity (2e); and the valve seat (3) is installed in the installation hole (2f) by interference fit via the annular extension portion (31).

6. A pipeline-connected four-way commutator according to claim 5, characterized in that: A third sealing ring (20) is provided in the mounting hole (2f), and the annular extension portion (31) is sealed and matched with the mounting hole (2f) through the third sealing ring (20).

7. A pipeline-connected four-way commutator according to claim 5, characterized in that: The valve body (2) is connected to a first water inlet joint (21), a second water inlet joint (22), a first water outlet joint (23) and a second water outlet joint (24) at the first water inlet (2a), the second water inlet (2b), the first water outlet (2c) and the second water outlet (2d) respectively.

8. The pipeline-connected four-way commutator according to claim 1, characterized in that: The diameter of the extended handle (51) gradually increases from the end close to the valve stem (5) to the end away from the valve stem (5), the extended handle (51) is configured as a hollow rod, and a plug (511) is provided at the end of the extended handle (51).

9. The pipeline-connected four-way commutator according to claim 1, characterized in that: A self-lubricating sleeve (6) is provided inside the first water inlet (2a) and the second water inlet (2b); the outer wall of the self-lubricating sleeve (6) is interference-fitted with the first water inlet (2a) and the second water inlet (2b); and the self-lubricating sleeve (6) is slidingly fitted with both ends of the water control member (4).

10. A pipeline-connected four-way commutator according to claim 9, characterized in that: The material of the self-lubricating sleeve (6) is set to be polytetrafluoroethylene material, and the self-lubricating sleeve (6) has an abutment portion (61) extending radially outward on one side facing the mixing chamber (2e), and the water control component (4) is provided with a stop step (42) corresponding to the abutment portion (61), and the abutment portion (61) and the stop step (42) are limited and stopped in cooperation.

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