CN219388651U - Water drain valve and vehicle - Google Patents

Abstract

The utility model relates to a water drain valve and a vehicle, and belongs to the technical field of vehicle manufacturing. The water drain valve comprises a water drain tap, and comprises a water inlet and a water outlet; the piston is arranged in the water discharge faucet; the handle is connected with the piston and is arranged to drive the piston to move relative to the water tap under the pulling motion of external force so as to be used for isolating or conducting the water inlet and the water outlet. The water drain valve provided by the utility model realizes the water drain function by pulling the handle and the piston, can rapidly switch the water drain valve, reduces the operation space requirement of switching the water drain valve, and increases the operation convenience during water drain.

Description

Water drain valve and vehicle

Technical Field

The utility model relates to the technical field of vehicle manufacturing, in particular to a water drain valve and a vehicle.

Background

The vehicle radiator generally realizes the heat dissipation and cooling function by flowing a cooling liquid such as water in a radiator core to absorb heat generated by a vehicle and then dissipating the heat into the air to cool. After the cooling liquid is used for a long time, the problems of corrosion of a heat dissipation part, blockage of a heat dissipation pipeline due to precipitation, influence on heat dissipation performance and the like can occur, and at the moment, a water drain valve of the radiator is required to be opened, and the cooling liquid is discharged so as to facilitate maintenance of the radiator.

At present, when the radiator drain valve is opened to drain, the drain handle through rotatory drain valve is generally drained, needs great hand operating space to the drain handle only can drain after need rotatory many circles, and the operation is inconvenient, leads to reducing drainage efficiency.

Disclosure of Invention

The utility model provides a water drain valve and a vehicle, and aims to solve at least part of the technical problems that the existing water drain valve needs a large hand operation space and is inconvenient to operate.

According to one aspect of the present utility model, there is provided a drain valve comprising: the water tap comprises a water inlet and a water outlet; the piston is arranged in the water drain faucet; the handle is connected with the piston and is arranged to drive the piston to move relative to the water tap under the pulling motion of external force so as to be used for isolating or conducting the water inlet and the water outlet.

The water drain valve provided by the utility model comprises the water drain faucet, the piston and the handle, wherein the piston is connected with the water drain faucet, and pushing force or pulling force can be applied to the piston through the pulling handle, so that the piston can move in a telescopic manner relative to the water drain faucet, and the water inlet and the water outlet of the water drain faucet are isolated or communicated by the piston, so that the water drain function is realized. Specifically, when the piston is connected with the water inlet and the water outlet of the water tap, the water tap can normally drain, and when the piston is used for cutting off the water inlet and the water outlet of the water tap, the water tap can not drain.

Compared with the existing water drain valve structure, the water drain valve provided by the utility model can be opened and closed only by pushing and pulling the piston, so that the operation space requirement of opening and closing the water drain valve during water drain can be reduced, the water drain valve can be opened and closed quickly, the operation convenience during water drain is improved, and the water drain efficiency is improved.

In a further preferred aspect, the handle includes an elastic portion connected to the piston and a clamping portion connected to the elastic portion; the clamping part is used for clamping the corresponding part of the water tap when the water inlet and the water outlet are cut off or conducted.

In this scheme, through applying external force to the elastic part, can make clamping part unclamp or press from both sides tightly. Specifically, when the water drain valve needs to be opened, external force can be applied to the elastic part to enable the clamping part and the water drain faucet to be loosened, and at the moment, the handle can be pulled out to enable the piston to move out of the water drain faucet until the water inlet and the water outlet of the water drain faucet are communicated; then, the external force applied to the elastic part is canceled to clamp the clamping part and the drain cock, and the drain cock can be kept in a state that the water inlet and the water outlet are communicated, namely, the drain valve is in an open state. When the water drain valve is required to be closed, external force can be applied to the elastic part to enable the clamping part and the water drain faucet to be loosened, and at the moment, the handle can be pushed to enable the piston to be inserted into the water drain faucet until a water inlet and a water outlet of the water drain faucet are separated; then, the external force applied to the elastic part is canceled to clamp the clamping part and the water drain tap, and the water drain tap can be kept in a state that the water inlet and the water outlet are separated, namely, the water drain valve is in a closed state.

Therefore, the elastic part and the clamping part of the handle are matched with each other, so that the piston can be limited, and the piston is fixed on the faucet, so that the water inlet and the water outlet of the faucet are kept in a separated or conducted state.

In a further preferred scheme, the drain cock is provided with a plurality of bulges, the bulges are distributed at intervals on the periphery of the drain cock, and clamping grooves for limiting the clamping parts are formed between the adjacent bulges.

In this scheme, be equipped with multichannel arch at the periphery of tap, and be formed with the draw-in groove between the adjacent arch. Therefore, the clamping part of the handle can be clamped in the clamping groove, the limiting effect on the handle can be improved through the matching of the clamping groove and the clamping part, and the problems that the handle is not firm in positioning, the water drain valve is insensitive and the like are avoided.

In a further preferred embodiment, the plurality of protrusions includes a first protrusion and a second protrusion, the first protrusion and the second protrusion being disposed from the near to the far along the water inlet; the clamping part is used for clamping the drain cock at one side of the first bulge close to the water inlet when the water inlet and the water outlet are cut off, and is used for clamping the drain cock between the first bulge and the second bulge when the water inlet and the water outlet are conducted.

In the scheme, two bulges are arranged on the periphery of the water tap, namely a first bulge and a second bulge, and a clamping groove is formed between the first bulge and the second bulge. When the water drain valve is in an open state, the clamping part is clamped in the clamping groove; when the water drain valve is in a closed state, the clamping part is clamped at one side of the first bulge close to the water inlet and abuts against the first bulge. Therefore, the clamping part can be matched with the clamping part through the two protrusions, and the clamping part can meet the clamping requirement when the water drain valve is opened and closed.

In a further preferred embodiment, a surface of the protrusion facing the elastic portion is an inclined surface.

In this scheme, because the protruding one side towards the elastic part of tap periphery is the inclined plane, when pushing the handle, the piston can insert in the tap along with the removal of handle, and the inclined plane orientation water inlet of the clamping part of handle can be followed to the clamping part at this moment is slided, helps the clamping part to cross the protruding of tap periphery.

In a further preferred scheme, the drain tap comprises a main body and a water outlet part; a first water discharging channel is arranged in the main body, one end of the first water discharging channel forms the water inlet, and the other end of the first water discharging channel is provided with the piston; the water outlet part is connected with the main body, a second water discharging channel is arranged in the water outlet part, one end of the second water discharging channel is communicated with the first water discharging channel, and the other end of the second water discharging channel forms the water outlet.

In the scheme, the piston is connected with the main body of the water drain faucet and is inserted into the first water drain channel of the main body, the piston is driven to move in the first water drain channel in a telescopic way through the pull handle, and the connecting part of the first water drain channel and the second water drain channel can be blocked by the piston, so that the water inlet and the water outlet are separated; or the piston can be driven to move so that the connection part of the first water discharging channel and the second water discharging channel is communicated, and the water inlet and the water outlet are communicated. Therefore, the piston can realize the function of regulating and controlling water discharge only by being connected with the main body of the water discharge faucet, the structure of the water discharge valve is effectively simplified, and the production cost is reduced.

In a further preferred aspect, the drain valve further comprises a first sealing ring and a second sealing ring; when the water inlet and the water outlet are cut off, the first sealing ring is used for sealing the piston and one end of the first water discharge channel, and the second sealing ring is used for sealing the piston and the other end of the first water discharge channel; when the water inlet and the water outlet are communicated, the second sealing ring is used for sealing the piston and the other end of the first water discharging channel.

In this scheme, be equipped with first sealing washer and second sealing washer in the tap of drain valve, first sealing washer and second sealing washer all set up in the piston periphery, and first sealing washer is used for preventing between water inlet and the second drain channel when water inlet and delivery port cut off, and the second sealing washer is used for preventing between piston and the first drain channel when water inlet and delivery port switch on to leak. Therefore, the sealing effect of the water drain valve can be improved by utilizing the first sealing ring and the second sealing ring, and the water drain valve is prevented from water leakage.

In a further preferred embodiment, the center line of the first water discharge passage is perpendicular to the center line of the second water discharge passage.

In this scheme, the central line of the interior first water channel of main part is perpendicular to the central line of the interior second water channel of play water portion, and the main part perpendicular to play water portion of tap, can be convenient for main part and play water portion connection shaping from this, be favorable to improving the manufacturing efficiency of play water tap.

In a further preferred embodiment, the piston is integrally formed with the handle.

In this scheme, piston and handle integrated into one piece can improve the structural strength between piston and the handle, is favorable to the transmission of the power between handle and the piston for can drive the piston nimble removal through the handle.

According to another aspect of the present utility model there is provided a vehicle comprising the drain valve described above, the water inlet of the drain valve being for communication with a radiator of the vehicle. When the radiator of the vehicle needs to be drained, the handle of the drain valve is only required to be pulled, the piston is driven to move in a telescopic mode relative to the drain cock by the handle, and the drain valve can be opened, so that the operation space requirement of opening and closing the drain valve during draining can be reduced, and quick draining can be realized.

In summary, the water drain valve and the vehicle provided by the utility model have at least the following advantages: the water drain valve comprises a water drain tap, a piston and a handle, wherein the piston can be driven to move in a telescopic manner relative to the water drain tap by pulling the handle, so that a water inlet and a water outlet of the water drain tap are cut off or conducted, and the function of closing or opening the water drain valve is realized. And the operating space requirement of a water drain valve can be reduced by pulling the handle and the piston, the water drain valve can be quickly opened and closed, the operating convenience is improved when water is drained, and the water drain efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the overall structure of a drain valve according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a partial structure of a drain valve according to an embodiment of the present utility model;

fig. 3 is a schematic view of an internal structure of a drain valve in an open state according to an embodiment of the present utility model; and

fig. 4 is a schematic view of an internal structure of a drain valve in a closed state according to an embodiment of the present utility model.

The reference numerals are as follows:

the tap 100 is operated by a tap,

the main body 110, the first water discharging channel 111, the water inlet 112, the first protrusion 113, the second protrusion 114, the clamping groove 115, the inclined plane 116,

a water outlet 120, a second water discharge channel 121, a water outlet 122,

the piston 200 is provided with a piston,

the handle 300, the elastic portion 310, the clamping portion 320,

the first seal ring 400 is provided with a seal,

and a second seal ring 500.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Referring to fig. 1 to 4, the drain valve according to the embodiment of the present utility model at least includes a drain cock 100, a piston 200, and a handle 300.

The tap 100 has a hollow passage therein through which water flows, and a water inlet 112 and a water outlet 122 are provided at both ends of the hollow passage, respectively. During the water discharge, water flows from the water inlet 112 into the hollow passage and then flows along the hollow passage until being discharged from the water outlet 122.

The piston 200 is disposed in the tap 100. In this embodiment, the piston 200 is configured as a straight rod structure, and the piston 200 can be inserted into a hollow channel of the faucet 100 and can move along the hollow channel, thereby isolating or conducting the water inlet 112 and the water outlet 122.

The handle 300 is connected to the piston 200, and the handle 300 is configured to drive the piston 200 to move relative to the faucet 100 under the pulling motion of an external force. When water is required to be drained, the handle 300 is pulled to drive the piston 200 to move in the direction away from the drain cock 100, so that the piston 200 cannot block the water inlet 112 and the water outlet 122, at the moment, the water inlet 112 and the water outlet 122 are communicated, and the water drain valve can drain water normally. When water is not needed to be discharged, the piston 200 can be driven by pushing the handle 300 to be inserted into the hollow channel of the water discharge faucet 100, so that the piston 200 cuts off the water inlet 112 and the water outlet 122, and the water discharge valve can not discharge water at the moment.

Through the above structural design, the pulling handle 300 applies pushing force or pulling force to the piston 200 under the action of external force, so that the piston 200 can move in a telescopic manner relative to the tap 100, thereby realizing the separation or conduction of the water inlet 112 and the water outlet 122 of the tap 100 by the piston 200 and realizing the water discharge function. Compared with the existing water drain valve structure, the water drain valve provided by the embodiment can be closed or opened only by pushing and pulling the handle 300 and the piston 200, so that the operation space requirement of a water drain valve can be reduced, the water drain valve can be rapidly opened and closed, the operation convenience in water drain is improved, and the water drain efficiency is improved.

As a further preferred embodiment, on the basis of the above-mentioned scheme, in a specific embodiment of the present utility model, an increase or a combination of one or more of the following may be further included.

In some alternative embodiments, the handle 300 includes a resilient portion 310 and a grip portion 320, the resilient portion 310 being connected to the piston 200, the grip portion 320 being connected to the resilient portion 310; the clamping portion 320 is used for clamping to the corresponding portion of the tap 100 when the water inlet 112 and the water outlet 122 are blocked or communicated.

Referring to fig. 1 and 2, the elastic portion 310 and the clamping portion 320 of the handle 300 are integrally formed, the elastic portion 310 is connected to an end of the piston 200 and is made of an elastic material, and the clamping portion 320 is connected to one side of the elastic portion 310 near the tap 100 and is clamped at the outer circumference of the tap 100. By applying an external force to squeeze one end of the elastic part 310 away from the tap 100 up and down, the clamping part 320 can release the clamping of the tap 100, and at this time, the piston 200 can be driven to move telescopically relative to the tap 100 by pushing and pulling the handle 300; when the external force is removed, the elastic part 310 is restored to the original state (as shown in fig. 1) under the self-elastic force, and at this time, the clamping part 320 clamps the tap 100, so that the piston 200 is fixed in the tap 100. Therefore, the elastic part 310 and the clamping part 320 are matched with each other to limit the piston 200, so that the piston 200 is fixed on the tap 100, and the water inlet 112 and the water outlet 122 of the tap 100 are kept in a separated or conducted state, so that the water drain valve is stably kept in an opened or closed state.

In some alternative embodiments, the faucet 100 is provided with a plurality of protrusions, the plurality of protrusions are arranged at intervals on the periphery of the faucet 100, and a clamping groove 115 for limiting the clamping portion 320 is formed between adjacent protrusions.

In this embodiment, when the clamping portion 320 is released from the faucet 100, the clamping portion 320 can be driven to move to any clamping groove 115 outside the faucet 100 by applying a pushing force or a pulling force to the elastic portion 310 and the piston 200. Therefore, the clamping part 320 can be clamped in any clamping groove 115 outside the drain cock 100, the limiting effect on the handle 300 and the piston 200 can be improved through the matching of the clamping groove 115 and the clamping part 320, and the problems of unstable positioning of the piston 200, insensitive water drain valve and the like are avoided.

In some alternative embodiments, the plurality of protrusions includes a first protrusion 113 and a second protrusion 114, the first protrusion 113 and the second protrusion 114 being disposed from the near to the far along the water inlet 112, a clamping groove 115 being formed between the first protrusion 113 and the second protrusion 114; the clamping part 320 is used for clamping the tap 100 at one side of the first boss 113 close to the water inlet 112 when the water inlet 112 and the water outlet 122 are separated, and is used for clamping the tap 100 between the first boss 113 and the second boss 114 when the water inlet 112 and the water outlet 122 are conducted. In this embodiment, the water drain valve can be opened or closed by controlling the clamping portion 320 to clamp at different positions outside the faucet 100.

Referring to fig. 3, when the drain valve is required to drain water, the drain valve is in an open state. At this time, the clamping portion 320 is clamped in the clamping groove 115 between the first protrusion 113 and the second protrusion 114, and the piston 200 is fixed in the faucet 100 by the cooperation of the clamping groove 115 and the clamping portion 320.

Referring to fig. 4, the drain valve is in a closed state when the drain valve does not require draining. At this time, the clamping portion 320 is clamped at one side of the first protrusion 113 near the water inlet 112 and abuts against the first protrusion 113, and the elastic portion 310 abuts against the end of the faucet 100, thereby fixing the piston 200 in the faucet 100.

In some alternative embodiments, the side of the protrusion facing the resilient portion 310 is the ramp 116.

Referring to fig. 2, the first protrusion 113 and the second protrusion 114 are inclined surfaces 116 on the surface facing the elastic portion 310, and when the handle 300 is pushed to insert the piston 200 into the faucet 100, the clamping portion 320 can slide along the inclined surfaces 116 of the first protrusion 113 and the second protrusion 114 toward the water inlet 112, which is helpful to reduce friction between the clamping portion 320 and the first protrusion 113 and the second protrusion 114, so that the handle 300 can move more smoothly and the operation is more convenient.

In some alternative embodiments, faucet 100 includes a main body 110 and a drain 120; a first water discharge channel 111 is arranged in the main body 110, a water inlet 112 is formed at one end of the first water discharge channel 111, and a piston 200 is arranged at the other end of the first water discharge channel 111; the water outlet 120 is connected to the main body 110, a second water discharging channel 121 is disposed in the water outlet 120, one end of the second water discharging channel 121 is connected to the first water discharging channel 111, and a water outlet 122 is formed at the other end of the second water discharging channel 121.

In this embodiment, the piston 200 is connected with the main body 110 of the tap 100 and is inserted into the first water discharge channel 111 of the main body 110, and the piston 200 is driven to move in the first water discharge channel 111 by pushing and pulling the handle 300, so that the connection between the first water discharge channel 111 and the second water discharge channel 121 can be blocked by the piston 200, so that the water inlet 112 and the water outlet 122 are blocked; or the piston 200 can be driven to move so that the connection part of the first water discharge channel 111 and the second water discharge channel 121 is communicated, and the water inlet 112 and the water outlet 122 are communicated. Therefore, the piston 200 can realize the function of regulating and controlling the water discharge only by being connected with the main body 110 of the water discharge faucet 100, thereby effectively simplifying the structure of the water discharge valve and reducing the production cost.

Further, the diameter of the end of the first drain passage 111 near the water inlet 112 is smaller than the diameter of the end near the piston 200, and accordingly, the diameter of the end of the piston 200 near the water inlet 112 is smaller than the diameter of the end far from the water inlet 112. Therefore, the first water discharge channel 111 can be blocked by utilizing the section of the piston 200 with smaller diameter, and the first water discharge channel 111 can be matched and fixed by utilizing the section of the piston 200 with larger diameter, so that the piston 200 is firmly connected with the water discharge faucet 100.

In some alternative embodiments, the drain valve further comprises a first seal ring 400 and a second seal ring 500, each of the first seal ring 400 and the second seal ring 500 being disposed at the periphery of the piston 200; when the water inlet 112 and the water outlet 122 are cut off, the first sealing ring 400 is used for sealing one end of the piston 200 and the first water discharge channel 111, and the second sealing ring 500 is used for sealing the other end of the piston 200 and the first water discharge channel 111; the second sealing ring 500 is used to seal the other end of the piston 200 and the first water discharge passage 111 when the water inlet 112 and the water outlet 122 are communicated.

Referring to fig. 3, when the drain valve is in an open state, a gap exists between the first drain passage 111 and the second drain passage 121, and the liquid entering the first drain passage 111 from the water inlet 112 can flow out to the water outlet 122 through the gap. Meanwhile, the piston 200 and the drain cock 100 are sealed by the second sealing ring 500, so that water leakage between the water inlet 112 and the second drain passage 121 and the piston 200 can be effectively prevented.

Referring to fig. 4, when the drain valve is in a closed state, the water inlet 112 is sealed with the second drain channel 121 by the first sealing ring 400, and the piston 200 is sealed with the drain cock 100 by the second sealing ring 500, so that water leakage between the water inlet 112 and the second drain channel 121 and between the piston 200 can be effectively prevented.

In some alternative embodiments, the centerline of the first drain passage 111 is perpendicular to the centerline of the second drain passage 121. In this embodiment, the center line of the first water drain channel 111 in the main body 110 is perpendicular to the center line of the second water drain channel 121 in the water outlet 120, and the main body 110 of the faucet 100 is perpendicular to the water outlet 120, so that the main body 110 and the water outlet 120 can be conveniently connected and formed, which is beneficial to improving the manufacturing efficiency of the faucet 100.

In some alternative embodiments, the piston 200 is integrally injection molded with the handle 300, which is advantageous for improving the connection strength between the piston 200 and the handle 300, resulting in a higher structural strength and longer service life of the drain valve.

According to another embodiment of the present utility model there is provided a vehicle comprising the drain valve of the above embodiment, the water inlet 112 of the drain valve being adapted to communicate with a radiator of the vehicle. Specifically, the tap 100 may be integrally injection molded with the radiator water chamber, the water inlet 112 of the tap 100 is communicated with the radiator water chamber, and the water outlet 122 of the tap 100 is communicated with the atmosphere. When the radiator of the vehicle needs to be drained, the handle 300 of the drain valve is only required to be pulled out and inserted, the handle 300 drives the piston 200 to move telescopically relative to the drain cock 100, and the drain valve can be opened or closed, so that the operation space requirement for switching the drain valve can be reduced, the cooling liquid in the radiator can flow out rapidly, and the drain efficiency is improved.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. A drain valve, comprising:

the water tap comprises a water inlet and a water outlet;

the piston is arranged in the water drain faucet;

the handle is connected with the piston and is arranged to drive the piston to move relative to the water tap under the pulling motion of external force so as to be used for isolating or conducting the water inlet and the water outlet.

2. The drain valve of claim 1, wherein the handle includes an elastic portion and a clamping portion, the elastic portion being connected to the piston, the clamping portion being connected to the elastic portion;

the clamping part is used for clamping the corresponding part of the water tap when the water inlet and the water outlet are cut off or conducted.

3. The water drain valve according to claim 2, wherein the water drain tap is provided with a plurality of protrusions, the plurality of protrusions are arranged at intervals on the periphery of the water drain tap, and clamping grooves for limiting the clamping portions are formed between adjacent protrusions.

4. A water drain valve as defined in claim 3, wherein,

the plurality of bulges comprise a first bulge and a second bulge, and the first bulge and the second bulge are arranged from the near to the far along the water inlet;

the clamping part is used for clamping the drain cock at one side of the first bulge close to the water inlet when the water inlet and the water outlet are cut off, and is used for clamping the drain cock between the first bulge and the second bulge when the water inlet and the water outlet are conducted.

5. A drain valve according to claim 3, wherein a face of the projection facing the resilient portion is beveled.

6. The drain valve of claim 1, wherein,

the water tap comprises a main body and a water outlet part;

a first water discharging channel is arranged in the main body, one end of the first water discharging channel forms the water inlet, and the other end of the first water discharging channel is provided with the piston;

the water outlet part is connected with the main body, a second water discharging channel is arranged in the water outlet part, one end of the second water discharging channel is communicated with the first water discharging channel, and the other end of the second water discharging channel forms the water outlet.

7. The water drain valve of claim 6, further comprising a first seal ring and a second seal ring;

when the water inlet and the water outlet are cut off, the first sealing ring is used for sealing the piston and one end of the first water discharge channel, and the second sealing ring is used for sealing the piston and the other end of the first water discharge channel;

when the water inlet and the water outlet are communicated, the second sealing ring is used for sealing the piston and the other end of the first water discharging channel.

8. The drain valve of claim 6, wherein a centerline of the first drain passage is perpendicular to a centerline of the second drain passage.

9. The drain valve of claim 1, wherein the piston is integrally formed with the handle.

10. A vehicle comprising a drain valve according to any one of claims 1-9, the water inlet of the drain valve being adapted to communicate with a radiator of the vehicle.