Drain valve

Abstract

The utility model relates to the field of drain valves, in particular to a drain valve with double outlets, which comprises a valve body, a first valve core, a second valve core and a screw, the valve body is provided with a water inlet, a first water outlet and a second water outlet which are communicated with an inner cavity of the valve body, and the inner cavity of the valve body is divided into a first chamber, a second chamber and a third chamber which are communicated with one another. The water inlet is communicated with the second cavity, the first water outlet is communicated with the first cavity, the second water outlet is communicated with the third cavity, the first valve element is connected to the first cavity in a sliding mode, the second valve element is connected to the first cavity in a sliding mode, and the first valve element and the second valve element are in transmission connection with the screw rod. The drainage valve disclosed by the utility model can improve the drainage efficiency.

Description

Technical Field

[0001] The utility model relates to the field of drain valves, in particular to a drain valve with double outlets. Background Art

[0002] Draining water to a container through a drain valve, when the container is fully loaded, the drain valve needs to be closed and the receiving container needs to be replaced before the drain valve is opened, which wastes time and reduces drainage efficiency. The Chinese utility model patent with publication number CN202901385U discloses a stop valve with a drain valve, which is provided with a water inlet, a water outlet and a drain outlet, wherein the water outlet and the drain outlet can be connected to a carrying container respectively, but in this patent, when the water outlet is closed, the drain outlet will also be closed, and it cannot be guaranteed that one of the water outlet and the drain outlet is always in a drainage state. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0003] Technical purpose: In order to overcome the deficiencies in the prior art, the utility model provides a drain valve to meet the requirements of alternate drainage.

[0004] Technical solution: To achieve the above purpose, the utility model discloses a drain valve, comprising:

[0005] A valve body, wherein the valve body is provided with a water inlet, a first water outlet, and a second water outlet communicating with an inner cavity thereof, wherein the inner cavity of the valve body is divided into a first chamber, a second chamber, and a third chamber communicating with each other, wherein the water inlet is communicated with the second chamber, the first water outlet is communicated with the first chamber, and the second water outlet is communicated with the third chamber;

[0006] A first valve core, wherein the first valve core is slidably connected to the first chamber, and the first valve core can slide to connect the first chamber with the second chamber or slide to isolate the first chamber from the second chamber;

[0007] a second valve core, the second valve core is slidably connected to the first chamber, and the second valve core can slide to connect the third chamber with the second chamber or slide to isolate the third chamber from the second chamber;

[0008] The first valve core and the second valve core are respectively connected to the screw in a driving manner.

[0009] Preferably, the first valve core and the second valve core have the same structure.

[0010] Preferably, the first valve core or the second valve core includes a valve core body, a rubber plug and a nut; the nut is fixedly connected to the valve core body, the first valve core or the second valve core is connected to the screw through the nut, the rubber plug is fixedly connected to the valve core body, and the rubber plug slides with the valve core body to block the connection between the first chamber and the second chamber, or to block the connection between the second chamber and the third chamber.

[0011] Preferably, the valve body includes an upper end cover, a lower end cover and a valve body proper. The upper end cover and the lower end cover are respectively connected to both ends of the valve body proper, and the water inlet, the first water outlet and the second water outlet are all arranged on the valve body proper.

[0012] Preferably, the screw rod includes a smooth rod section, a first threaded section, a second threaded section and a connecting section. A sleeve is connected to the upper end cover, and the sleeve is rotatably connected to the smooth rod section. The first threaded section is in driving connection with the first valve core, and the second threaded section is in driving connection with the second valve core. The screw rod passes through the valve body, and snap rings are connected to both ends of the screw rod extending out of the pump body.

[0013] Preferably, the valve body proper is provided with guide grooves which are respectively arranged above the first chamber and below the third chamber. Guide protrusions are respectively arranged on the outer walls of the first valve core and the second valve core. The guide grooves correspond to the guide protrusions one by one, and the guide protrusions extend into the guide grooves.

[0014] Preferably, sealing rings are respectively arranged between the upper end cover and the valve body proper, and between the lower end cover and the valve body proper.

[0015] Preferably, a sealing ring is arranged between the smooth rod section and the upper end cover.

[0016] Preferably, sealing rings are respectively arranged on the outer walls of the first valve core and the second valve core.

[0017] The utility model has the following technical effects:

[0018] In this drain valve, the first valve core and the second valve core are respectively in driving connection with the screw rod. When the screw rod rotates in one direction, the first valve core conducts the first chamber and the second chamber while the second valve core blocks the second chamber and the third chamber. At this time, the first drain port drains water. When the screw rod rotates in the other direction, the first valve core blocks the first chamber and the second chamber while the second valve core conducts the second chamber and the third chamber. At this time, the second drain port drains water. Based on this, it can be ensured that only one of the first drain port and the second drain port is open at the same time. During use, two containers can be respectively connected to the first drain port and the second drain port. When one container is full, the screw rod can be rotated to drain water into the other container. While draining water into the other container, the full container can be replaced without closing the water inlet, thus improving the drainage efficiency. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the utility model;

[0020] Figure 2 is a structural sectional view of the utility model;

[0021] Figure 3This is a schematic structural view of the screw rod in the present utility model;

[0022] Figure 4 This is a schematic structural view of the valve body in the present utility model;

[0023] Figure 5 This is a schematic structural view of the first valve core and the second valve core in the present utility model.

[0024] In the figure, 1 is the valve body; 101 is the water inlet; 102 is the first water outlet; 103 is the second water outlet; 104 is the first chamber; 105 is the second chamber; 106 is the third chamber; 107 is the upper end cover; 108 is the lower end cover; 109 is the valve body; 110 is the guide groove; 2 is the first valve core; 201 is the valve core body; 202 is the rubber plug; 203 is the nut; 204 is the guide protrusion; 3 is the second valve core; 4 is the screw rod; 401 is the smooth rod section; 402 is the first thread section; 403 is the second thread section; 404 is the connection section; 5 is the sleeve; 6 is the snap ring. Detailed implementation manners

[0025] The following Figure 1 in conjunction with the appended Figure 5 drawings describes the principles and features of the present utility model. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0026] A drain valve includes a valve body 1, a first valve core 2 and a second valve core 3.

[0027] For the convenience of installing the first valve core 2 and the second valve core 3, the valve body 1 includes an upper end cover 107, a lower end cover 108 and a valve body 109 connected by bolts. The upper end cover 107 and the lower end cover 108 are respectively connected to both ends of the valve body 109. To ensure the sealing requirements, sealing rings are respectively arranged between the upper end cover 107 and the valve body 109, and between the lower end cover 108 and the valve body 109. The sealing ring can be an O-ring or other sealing rings with better sealing effects. The valve body 1 is provided with a water inlet 101, a first water outlet 102 and a second water outlet 103 communicated with its inner cavity. Specifically, the water inlet 101, the first water outlet 102 and the second water outlet 103 are arranged on the valve body 109, and the first water outlet 102 and the second water outlet 103 are symmetrically distributed on both sides of the water inlet 101. The inner cavity of the valve body 1 is divided into a first chamber 104, a second chamber 105 and a third chamber 106 which are communicated with each other. Among them, the water inlet 101 is communicated with the second chamber 105, the first water outlet 102 is communicated with the first chamber 104, and the second water outlet 103 is communicated with the third chamber 106.

[0028] The first valve core 2 and the second valve core 3 are arranged in the inner cavity of the valve body 1. Among them, the first valve core 2 is slidably connected in the first chamber 104, and the second valve core 3 is slidably connected in the second chamber 105. The first valve core 2 and the second valve core 3 have the same structure. The first valve core 2 or the second valve core 3 includes a valve core body 201, a rubber plug 202 and a nut 203. The valve core body 201 is made of a hard material (such as cast iron), and the rubber plug 202 is made of a soft material (such as rubber). The nut 203 is fixedly connected to one end of the valve core body 201, and the nut 203 is fixedly connected to the central position of the valve core body 201.

[0029] The screw rod 4 is successively divided into a smooth rod section 401, a first threaded section 402, a second threaded section 403 and a connecting section 404 from one end to the other end. Among them, the first threaded section 402 and the second threaded section 403 are respectively provided with transmission threads. The first threaded section 402 is in transmission connection with the first valve core 2 through the nut 203, and the second threaded section 403 is in transmission connection with the second valve core 3 through the nut 203. When the screw rod 4 rotates, the valve core body 201 moves up and down along with the screw rod 4, and the valve core body 201 drives the first valve core 2 and the second valve core 3 to move up and down. Refer to the attached Figure 2 , when the first valve core 2 slides to its lower limit position, the first chamber 104 and the second chamber 105 are mutually blocked; when the first valve core 2 slides away from the lowest limit position, the first chamber 104 and the second chamber 105 are mutually communicated. When the second valve core 3 slides to its upper limit position, the third chamber 106 and the second chamber 105 are mutually blocked, and when the second valve core 3 slides away from its upper limit position, the third chamber 106 and the second chamber 105 are mutually communicated. More specifically, the rubber plug 202 on the first valve core 2 blocks the communication place between the first chamber 104 and the second chamber 105; the rubber plug 202 on the second valve core 3 blocks the communication place between the second chamber 105 and the third chamber 106.

[0030] The valve body 109 is provided with guide grooves 110. The guide grooves 110 are respectively arranged above the first chamber 104 and below the third chamber 106. Guide protrusions 204 are respectively arranged on the outer walls of the first valve core 2 and the second valve core 3. The guide grooves 110 correspond to the guide protrusions 204 one by one, and the guide protrusions 204 extend into the guide grooves 110. Sealing rings are respectively arranged on the outer walls of the first valve core 2 and the second valve core 3. It should be noted that the axial position of the sealing ring cannot cross the guide groove 110 (that is, when the first valve core 2 slides to the lower limit position, the sealing ring of the first valve core 2 should be placed above the guide groove 110; when the second valve core 3 slides to the upper limit position, the sealing ring of the second valve core 3 should be placed below the guide groove 110), otherwise the sealing rings on the first valve core 2 and the second valve core 3 will not play a sealing role.

[0031] The upper end cover 107 of the valve body 1 is connected with a sleeve 5, and the sleeve 5 is designed to facilitate the formation of a rotational connection with the smooth rod section 401 of the screw rod 4. The screw rod 4 passes through the valve body 1 and snap rings 6 are respectively connected to both ends of the screw rod 4 extending out of the valve body 1. The snap rings 6 are standard parts used to limit the axial position of the screw rod 4 so that it can only rotate circumferentially and cannot move axially. Similarly, in order to ensure sealing, sealing rings are respectively arranged between the smooth rod section 401 and the upper end cover 107, and between the connecting section 404 and the lower end cover 108.

[0032] In this device, when the screw rod 4 rotates forward, the first valve core 2 moves upward to conduct the first chamber 104 and the second chamber 105, and at the same time, the second valve core 3 moves upward to block the second chamber 105 and the third chamber 106, and the first water outlet 102 discharges water; when the screw rod 4 rotates reversely, the first valve core 2 moves downward to block the first chamber 104 and the second chamber 105, and at the same time, the second valve core 3 moves downward to conduct the second chamber 105 and the third chamber 106, and the second water outlet 103 discharges water, so as to ensure that only one of the first water outlet 102 or the second water outlet 103 discharges water at the same time.

[0033] It should be noted that since this drain valve does not have a cut-off function, if there is a need to cut off the water source during use, it is best to use it in combination with a stop valve.

[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A drain valve, characterized in that: include: A valve body (1), the valve body (1) being provided with a water inlet (101), a first water outlet (102) and a second water outlet (103) which are communicated with an inner cavity thereof, the inner cavity of the valve body (1) being divided into a first chamber (104), a second chamber (105) and a third chamber (106) which are communicated with each other, the water inlet (101) being communicated with the second chamber (105), the first water outlet (102) being communicated with the first chamber (104), and the second water outlet (103) being communicated with the third chamber (106); A first valve core (2), wherein the first valve core (2) is slidably connected to the first chamber (104), and the first valve core (2) can slide to connect the first chamber (104) with the second chamber (105) or slide to isolate the first chamber (104) from the second chamber (105); a second valve core (3), wherein the second valve core (3) is slidably connected to the first chamber (104), and the second valve core (3) can slide to connect the third chamber (106) with the second chamber (105) or slide to isolate the third chamber (106) from the second chamber (105); A screw rod (4), wherein the first valve core (2) and the second valve core (3) are respectively connected to the screw rod (4) in a transmission manner.

2. The drain valve according to claim 1, characterized in that: The first valve core (2) and the second valve core (3) have the same structure.

3. The drain valve according to claim 2, characterized in that: The first valve core (2) or the second valve core (3) comprises a valve core body (201), a rubber plug (202) and a nut (203); the nut (203) is fixedly connected to the valve core body (201); the first valve core (2) or the second valve core (3) is connected to the screw (4) by means of the nut (203); the rubber plug (202) is fixedly connected to the valve core body (201); the rubber plug (202) slides with the valve core body (201) to block the connection between the first chamber (104) and the second chamber (105), or to block the connection between the second chamber (105) and the third chamber (106).

4. The drain valve according to claim 1, characterized in that: The valve body (1) comprises an upper end cover (107), a lower end cover (108) and a valve body (109); the upper end cover (107) and the lower end cover (108) are respectively connected to two ends of the valve body (109); and the water inlet (101), the first water outlet (102) and the second water outlet (103) are all arranged on the valve body (109).

5. The drain valve according to claim 4, characterized in that: The screw rod (4) comprises a smooth rod section (401), a first threaded section (402), a second threaded section (403) and a connecting section (404); the upper end cover (107) is connected to a sleeve (5); the sleeve (5) is rotationally connected to the smooth rod section (401); the first threaded section (402) is transmission-connected to the first valve core (2); the second threaded section (403) is transmission-connected to the second valve core (3); the screw rod (4) passes through the valve body (1); and both ends of the screw rod (4) extending out of the valve body (1) are connected to retaining springs (6).

6. The drain valve according to claim 5, characterized in that: The valve body (109) is provided with a guide groove (110), and the guide groove (110) is respectively arranged above the first chamber (104) and below the third chamber (106). The outer walls of the first valve core (2) and the second valve core (3) are respectively provided with guide protrusions (204), and the guide groove (110) corresponds to the guide protrusions (204) one by one, and the guide protrusions (204) extend into the guide groove (110).

7. The drain valve according to claim 4, characterized in that: Sealing rings are respectively provided between the upper end cover (107) and the valve body (109), and between the lower end cover (108) and the valve body (109).

8. The drain valve according to claim 5, characterized in that: A sealing ring is provided between the polished rod section (401) and the upper end cover (107).

9. The drain valve according to claim 1, characterized in that: The outer walls of the first valve core (2) and the second valve core (3) are respectively provided with sealing rings.

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