CN220174932U - Drainage structure and beverage machine - Google Patents

Abstract

The utility model provides a drainage structure and a beverage machine, wherein the drainage structure comprises: a drain pipe having an inlet end connected to the tank and an outlet end selectively projecting from an opening in the machine housing; the plug is used for closing the outlet end of the drain pipe; a drain cover having an inner side fixedly connected to the plug and an outer side opposite to the inner side, the drain cover detachably closing the opening; the opening has a first end along a face of the opening and a second end opposite the first end, and the drain cover is connected to the machine housing in a direction from the first end to the second end. Above-mentioned drainage structures, along the installation that the machine casing can be more convenient with dismantle the drainage lid, simple structure, convenient operation.

Description

Drainage structure and beverage machine

Technical Field

The utility model relates to the technical field of food, water or beverage acquisition, in particular to a drainage structure and a beverage machine.

Background

With the improvement of the living standard of people, various household appliances capable of acquiring food, water or beverage are increasingly popular with people. Some household appliances with built-in water tanks usually need to be provided with a drain pipe for draining the water tank, for example, when a machine is started up, the water in the water tank is drained after long-time non-use, the descaling and flushing of the machine water tank and the test before the shipment of the product line end need to be performed for draining the water tank.

The coffee machine can conveniently and quickly provide coffee for users, and becomes a product for office, casino and home life. The coffee machine is provided with a water tank as a water supply source for producing a beverage, the water tank is connected with a drain pipe, and an outlet end of the drain pipe is required to be provided with a plug or a stopper for closing an outlet of the drain pipe. When the water tank needs to be drained, the plug or the stopper is pulled out to drain. In normal use of the tank, a plug or stopper is mounted at the end of the drain pipe and received in/on the machine, and then a cover plate is mounted so as not to affect the external appearance of the coffee machine. In order to facilitate the installation of the drain cover, magnets are respectively arranged on the inner side of the drain cover and the machine body, and the drain cover is closed by the assistance of the magnets.

Therefore, an additional drain cover is required to be arranged to store and cover the drain pipe, storage is difficult, parts are more, the structure is complex, the drain cover is required to be closed after the plug is plugged back, and the use experience of a customer is affected.

In addition, the plug or the plug is fixed on the drain cover, and the drain cover is arranged in the groove extending out of the water supply and drain pipe, so that the water drain pipe is accommodated and covered. When the drain cover is installed, the periphery of the drain cover is required to be completely corresponding to the groove to be installed, and the drain cover can be inconvenient to detach in the groove.

For this reason, further improvements are needed over the prior art.

Disclosure of Invention

The utility model aims to provide a drainage structure which is simple in structure and convenient to install.

Another object of the present utility model is to provide a beverage maker which is simple in structure and convenient to install.

In order to achieve one of the above objects, the present utility model provides a drainage structure comprising:

a drain pipe having an inlet end connected to the tank and an outlet end selectively projecting from an opening in the machine housing;

the plug is used for closing the outlet end of the drain pipe;

a drain cover having an inner side fixedly connected to the plug and an outer side opposite to the inner side, the drain cover detachably closing the opening;

the opening has a first end along a face of the opening and a second end opposite to the first end, and a connection direction of the drain cover and the machine housing is consistent with a direction from the first end to the second end.

As a further improvement of an embodiment of the utility model, the outside of the drain cover is aligned with the machine housing forming the opening.

As a further improvement of an embodiment of the utility model, the opening is provided with a guide strip extending from the second end to the first end, and the inside of the drain cover is provided with a guide rail which moves along the guide strip to guide the drain cover.

As a further improvement of an embodiment of the present utility model, the guide rail includes a side plate portion protruding from an inner side of the drain cover, and a bottom plate portion connected to the side plate portion, the bottom plate portion being disposed in a direction parallel to the guide bar at an end of the side plate portion remote from the drain cover, a guide groove accommodating at least a part of the guide bar being formed between the side plate portion and the bottom plate portion.

As a further improvement of an embodiment of the present utility model, one end of the bottom plate portion forms a closed end and the other end of the bottom plate portion forms an open end along the direction from the first end to the second end, the guide bar is inserted into the guide groove from the open end, the guide groove has a gradually increasing accommodation space from the closed end to the middle of the bottom plate portion, and the end shape of the guide bar is matched with the guide groove shape.

As a further improvement of one embodiment of the present utility model, the free end of the guide bar forms a first guide surface, a boss is disposed on a surface of the guide bar facing the guide rail, the boss forms a second guide surface along the direction from the first end to the second end, and the second guide surface and the first guide surface are disposed at intervals.

As a further improvement of an embodiment of the present utility model, the opening is provided with a cantilever plate extending from a first end to a second end, a clamping block is provided on the inner side of the drain cover, the clamping block is limited by the cantilever plate, the free end of the cantilever plate has deformation away from the drain cover under the action of an external force, the drain cover has a disassembly path from the second end to the first end, and the clamping block applies the external force on the disassembly path to enable the force generated by the deformation of the cantilever plate to act on the clamping block.

As a further improvement of an embodiment of the present utility model, the cartridge includes a body in a shape of a straight line in a direction perpendicular to the first end to the second end, and reinforcing ends at both ends of the body, each of which has a cross-sectional area parallel to the drain cover gradually decreasing from a bottom of the connection drain cover in a direction away from the drain cover.

As a further improvement of an embodiment of the present utility model, one of the clamping block and the cantilever plate is provided with an arc surface, the other of the clamping block and the cantilever plate is provided with an inclined surface, and the arc surface and the inclined surface are arranged in opposition along a disassembly path of the drain cover moving from the second end to the first end.

As a further improvement of an embodiment of the present utility model, the outer side of the drain cover is provided with a concave portion and a protruding edge located at one side of the concave portion, and the concave portion and the protruding edge are arranged along the direction from the second end to the first end.

The utility model also relates to a beverage machine comprising a machine housing and a water tank arranged in the machine housing, the beverage machine further comprising a drain structure according to any of the embodiments above.

Compared with the prior art, the utility model has the beneficial effects that: through being connected the drainage lid in the machine casing along the one end of the face that the opening is located to the direction of the other end, can more convenient installation with dismantle the drainage lid, be applicable to different models.

Drawings

Fig. 1 is a perspective view schematically showing a drainage structure according to an embodiment of the present utility model.

Fig. 2 is an exploded perspective view of the drainage structure of fig. 1.

Fig. 3 is a perspective view of the drainage structure of fig. 1 from another perspective.

Fig. 4 is a schematic cross-sectional view of the drainage structure of fig. 1 taken along line A-A.

Fig. 5 is a schematic cross-sectional view of the drainage structure of fig. 1 taken along line B-B.

Fig. 6 is a perspective view of a drain cover of the drain structure of fig. 1.

Fig. 7 is a perspective view of a machine housing portion of the drain structure of fig. 1.

Fig. 8 is a perspective view schematically showing a drainage structure according to another embodiment of the present utility model.

Fig. 9 is a perspective view of another view of the drainage structure of fig. 8.

Fig. 10 is an exploded perspective view of the drainage structure of fig. 8.

Detailed Description

The present utility model will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the utility model and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the utility model.

It will be appreciated that terms such as "upper," "above," "lower," "below," and the like, as used herein, refer to spatially relative positions and are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

The drain structure according to the embodiment of the present utility model will be described by taking a drain structure for a beverage machine as an example. Referring to fig. 1 to 3, in the present embodiment, the drain structure 100 includes a drain pipe (not shown), a plug 21 for plugging an outlet end of the drain pipe, an inlet end of the drain pipe being connected to the water tank, the outlet end of the drain pipe being selectively protruded from an opening 110 in the machine housing 10. When water is required to be drained, the drain pipe can be pulled out from the opening 110, the plug 21 is pulled out, and the outlet end of the drain pipe is led to an external water storage container; after the drain is completed, the plug 21 is attached and the drain pipe is accommodated in the opening 110.

The drain structure 100 further includes a drain cover 20 having an inner side fixedly coupled to the plug 21 and an outer side opposite the inner side, the drain cover 20 removably closing the opening 110 in the machine housing 10 so that the drain pipe and the plug 21 can be received in the opening 110. The opening 110 of the machine housing 10 has a first end 112 and a second end 114 opposite to the first end along the surface of the opening 110, and the connection direction of the drain cover 20 and the machine housing 10 is consistent with the direction from the first end 112 to the second end 114.

By attaching the drain cover 20 to the machine housing 10 in the direction from one end to the other end of the face where the opening 110 is located, the drain cover 20 can be more conveniently attached and detached along the outside of the machine housing 10, and can be adapted to different models. In particular, the outer side of the drain cover 20 is aligned with the machine housing 10 forming the opening 110, so that the surface of the drain cover 20 is aligned with the machine housing 10 forming the opening 110, and the drain cover 20 is adapted to the machine housing 10 after being mounted, so that the integration is better, and the influence on the overall appearance is small.

In the present embodiment, the opening 110 is preferably provided with a guide bar 120 extending from the second end 114 to the first end 112, and the inside of the drain cover 20 is provided with a guide rail 220, and the guide rail 220 moves along the guide bar 120 to guide the drain cover 20. The guide bar 120 and the guide rail 220 are arranged, so that the installation and the guide of the drain cover 20 are facilitated, and the drain cover 20 can be accurately and rapidly installed. The opening 110 is generally rectangular, the first end 112 and the second end 114 are configured as two ends of the long side of the rectangle, and the guide bars 120 are disposed on two sides of the short side of the rectangle. The periphery of opening 110 has a skirt 116 extending inwardly of machine housing 10, and the depth of opening 110, i.e., the distance from the outer surface of machine housing 10 to the bottom surface of skirt 116. Skirt 116 of first end 112 is sloped inwardly of opening 110 to facilitate installation and removal of drain cover 20. Preferably, both sides of the skirt 116 engaged with the drain cover 20 along the installation direction are provided with inclined surfaces, the inclined surfaces are inclined at an angle greater than 90 degrees with respect to the surface of the opening 110, the edge engaged with the inclined surfaces on the drain cover 20 is also provided with inclined surfaces, the drain cover 20 is tightly assembled with the opening 110 and the drain cover 20 can smoothly slide out of the machine housing 10. Of course, the edge of the drain cover 20 that mates with the bevel may be contoured or chamfered or rounded to provide a smoother mating of the drain cover 20 to the opening 110. In addition, the side of the guide bar 120 facing the inside of the machine housing 10 is substantially flush with the bottom surface of the skirt 116, and the side of the guide bar 120 facing the outside of the machine housing 10 is substantially in the middle of the skirt 116 in the inward-outward direction of the machine housing 10, so that a space for the drain cover 20 to fit into the opening 110 can be reserved, and the drain cover 20 can be aligned with the machine housing 10.

Further, the guide rail 220 includes a side plate portion 222 protruding from the inside of the drain cover 20 and a bottom plate portion 224 connected to the side plate portion 222, the bottom plate portion 224 being disposed in a direction parallel to the guide bar 120 at an end of the side plate portion 222 remote from the drain cover 20, and a guide groove 226 accommodating at least part of the guide bar is formed between the side plate portion 222 and the bottom plate portion 224. The guide bar 120 is inserted into the guide groove 226 to form a reliable guide when the drain cover 20 is installed. After the drain cover 20 is mounted, the side plate portion 222 and the bottom plate portion 224 are restrained from moving in three directions by the guide bar 120, that is, the drain cover 20 is firmly mounted without shaking in the inner and outer directions of the machine housing 10, in the direction from one long side to the other long side of the opening 110, and in the direction from one short side to the other short side of the opening 110.

Referring to fig. 4 to 7, along the direction from the first end 112 to the second end 114, one end of the bottom plate 224 forms a closed end 228, the other end of the bottom plate 224 forms an open end, the guide bar 120 is inserted into the guide groove 226 from the open end, the guide groove 226 has a gradually increasing space from the closed end 228 to the middle of the bottom plate 224, the end shape of the guide bar 120 is matched with the shape of the guide groove 226, that is, the free end of the guide bar 120 is formed with the first guide surface 122, the first guide surface 122 is provided, and the thickness of the guide bar 120 along the inner and outer directions of the machine housing 10 from the free end to the position corresponding to the middle of the bottom plate 224 gradually increases, thereby facilitating the guiding of the guide rail 220, and also being matched with the closed portion 228, so as to realize the more smooth installation of the drain cover 10. In addition, a boss 140 is provided on a surface of the guide bar 120 facing the bottom plate 224 of the guide rail 220, and the boss 140 forms a second guide surface 142 along the direction from the first end 112 to the second end 114, and the second guide surface 142 and the first guide surface 122 are spaced apart. By providing the boss 140 on the guide bar 120, a gap between the guide bar 120 and the bottom plate portion 224 of the guide rail 220 can be filled, further preventing the drain cover 20 from shaking after installation. The two guide surfaces are arranged at intervals, so that the guide rail 220 of the drain cover 20 moves more smoothly along the guide strip 120, and the structural connection is ensured to be reliable. Of course, a boss may be provided on a surface of the guide bar 120 facing the side plate portion 222 of the guide rail 220, so that a gap between the guide bar 120 and the side plate portion 222 of the guide rail 220 may be filled, and shaking after the drain cover 20 is mounted may be prevented.

With continued reference to fig. 3-5, the opening 110 is provided with a cantilever plate 160 extending from the first end 112 to the second end 114, the inside of the drain cover 20 is provided with a clamping block 240, the clamping block 240 is limited by the cantilever plate 160, the free end of the cantilever plate 160 has deformation away from the drain cover under the action of external force, the drain cover 20 has a disassembly path from the second end 114 to the first end 112, and on the disassembly path, the clamping block 240 applies external force to enable the force generated by the deformation of the cantilever plate 160 to act on the clamping block 240. Thus, after the drain cover 20 is mounted to the opening 110, the cantilever plate 160 is positioned at the initial position, and the clamping block 240 is limited by the cantilever plate 160; when the drain cover 20 moves in a direction from the second end 114 to the first end 112 to cause the cantilever plate 160 to pass over the free end of the cantilever plate 160, the cantilever plate 160 is deformed by the force of the cantilever plate 240, the force generated by the deformation of the cantilever plate 160 acts on the cantilever plate 240, and the cantilever plate 160 receives the force in the inward-outward direction of the drain cover 20 from the clamping plate 240. The cantilever plate 160 can push the drain cover 20 out of the opening 110 of the machine housing 10 by self elasticity, and the operation of disassembling the drain cover 20 is more convenient and labor-saving. Further, after the drain cover 20 is mounted in place on the machine housing 10, the latch 240 is located at the free end side of the cantilever plate 160. At this time, the free end of the cantilever plate 160 is restricted by the locking block 240, so as to prevent the drain cover 20 from loosening and falling in a direction opposite to the installation direction, and increase the fixing firmness of the drain cover 20.

The latch 240 includes a body 242 having a straight shape in a direction perpendicular to the first end 112 to the second end 114, and reinforcing ends 244 at both ends of the body 242, each reinforcing end 244 having a cross-sectional area parallel to the drain cover 20 gradually decreasing from the bottom of the drain cover 20 in a direction away from the drain cover 20. The shape of the reinforcing end 244 can ensure that the strength of the main body 242 of the clamping block 240 meets the requirement, so as to avoid poor molding caused by excessive thickness of the main body 242 of the clamping block 240. When the drain cover 20 is detached, in order to facilitate the cantilever plate 160 to slide relative to the clamping block 240 and to enable the drain cover 20 to pop up, an arc surface is provided on one of the clamping block 240 and the cantilever plate 160, an inclined surface is provided on the other of the clamping block 240 and the cantilever plate 160, the drain cover 20 moves from the second end 114 to the first end 112, and the clamping block 240 and the cantilever plate 160 are separated under the interaction of the arc surface and the inclined surface. Specifically, one side of the cantilever plate 160 facing the cantilever plate 240 is set to be an arc surface 246, one side of the cantilever plate 160 facing the cantilever plate 240 is set to be an inclined surface 162, or one side of the cantilever plate 160 facing the cantilever plate 160 is set to be an inclined surface, one side of the cantilever plate 160 facing the cantilever plate 240 is set to be an arc surface, that is, the arc surface 246 and the inclined surface 162 are arranged in opposite directions along a disassembly path of the drain cover 20 moving from the second end 114 to the first end 112, and the clamping block 240 and the cantilever plate 160 are separated under interaction of the arc surface and the inclined surface during relative movement. Through the inclined surface of the skirt 116 of the first end 112 and the guide rail and guide bar structure between the drain cover 20 and the opening 110, the fixture block 240 and the cantilever plate 160 can slide relatively when the drain cover 20 is detached, the drain cover 20 can slide relatively relative to the machine housing 10, and the drain cover 20 is pushed out.

With continued reference to fig. 2, the drain cover 20 is provided with a recess 260 and a protruding edge 262 on one side of the recess 260, the recess 260 and protruding edge 262 being arranged along the direction from the second end 114 to the first end 112. When dismantling the drain cover 20 from the machine housing 10, make things convenient for operator's finger to exert a force to the drain cover 20, can enough instruct the operation of dismantling the drain cover 20, reduce the operation degree of difficulty simultaneously, it is more convenient to dismantle the drain cover 20.

In this embodiment, the outer surface of the machine housing 10 forming the opening 110 is a plane, the drain cover 20 is mounted to the opening 110, the outer side of the drain cover 20 is aligned with the machine housing 10, preferably the outer side of the drain cover 20 is located on the same plane as the outer surface of the machine housing 10, so that the drain cover can be matched with the outer surface of the machine housing 10, and the appearance is high. Of course, the outer side of the drain cover 20 is aligned with the machine housing 10 not only coplanar but also the drain cover 20 is mounted to the machine housing 10, and the outer side of the drain cover 20 may be considered aligned with the machine housing 10 as long as the outer side of the drain cover 20 protrudes above the height of the outer surface of the machine housing 10 or the depth of the outer side of the drain cover 20 recessed into the outer surface of the machine housing 10 is less than the depth of the opening 110.

Referring to fig. 8 to 10, in another preferred embodiment of the present utility model, the same features as those of the first embodiment are denoted by the same reference numerals, and the structure and function are similar to those of the first embodiment, and will not be repeated here. The outer surface of the machine housing 10 forming the opening 110 is a concave arcuate surface, the drain cover 20 is shaped to match the outer surface of the machine housing 10, the drain cover 20 is attached to the machine housing 10 in a direction from the first end 112 to the second end 114, and the outer side of the drain cover 20 is aligned with the machine housing 10 forming the opening 110.

The opening 110 is provided with a guide bar 120 extending from the second end 114 to the first end 112, and the inside of the drain cover 20 is provided with a guide rail 220, and the guide rail 220 moves along the guide bar 120 to guide the drain cover 20. The opening 110 is generally rectangular, the first end 112 and the second end 114 are configured as two ends of the long side of the rectangle, and the guide bars 120 are disposed on two sides of the short side of the rectangle. Around the opening 110 there is a skirt 116 extending inwardly of the machine housing 10. The skirt 116 may be formed by recessing a peripheral portion of the opening 110, the depth of the opening 110 being the distance from the outer surface of the machine housing 10 to the bottom surface of the skirt 116. The first end 112 of the opening 110 is inclined toward the inside of the opening 110 to facilitate the installation of the drain cover 20. The guide bar 120 may be a stepped portion protruding from the bottom of the opening 110 toward the inside of the opening 110, and extending from the middle of one long side of the rectangle to the middle of the other long side of the rectangle along the circumferential direction of the opening 110, so that the portion of the guide bar 120 at the second end 114 can provide further reliable support for the installation of the drain cover 20.

The opening 110 is provided with a cantilever plate 160 extending from the first end 112 to the second end 114, the inside of the drain cover 20 is provided with a clamping block 240, the clamping block 240 is limited by the cantilever plate 160, and when the drain cover 20 moves in the direction from the second end 114 to the first end 112 to enable the clamping block 240 to pass over the free end of the cantilever plate 160, the clamping block 240 bears the force of the cantilever plate 160 in the inside-outside direction of the drain cover 20. The cantilever plate 160 can push the drain cover 20 out of the opening 110 of the machine housing 10 by self elasticity, and the operation of disassembling the drain cover 20 is more convenient and labor-saving. The inner side of the drain cover 20 is further provided with a baffle 212, and a reinforcing rib 214 is connected between the baffle 212 and the plug 21, so that the strength of the baffle 212 can be enhanced, and the baffle 212 is arranged at the edge of the drain cover 20 corresponding to the second end 114 of the opening 20 so as to limit the installation of the drain cover 20. In addition, one end of the reinforcing rib 214 is connected to the plug 21, so that the plug 21 can be supported, the strength of the plug 21 is ensured, and the service life of the drain cover 20 is prolonged.

In the above embodiment, when the drain cover 20 needs to be detached for draining, an operator can apply force from the second end 114 to the first end 112 through the protruding edge 262 in the concave portion 260, the clamping block 240 interacts with the cantilever plate 160, the clamping block 240 is pushed outward by the cantilever plate 160 while passing over the free end of the cantilever plate 160 along the direction from the second end 114 to the first end 112, the drain cover 20 can be detached from the machine housing 10 after the guide bar 120 is separated from the guide rail 220, and the plug 21 is separated from the drain pipe for draining. When the drain cover 20 is installed, the guide rail 220 of the drain cover 20 corresponds to the guide bar 120 in position and moves towards the second end 114, the clamping block 240 presses the cantilever plate 160 to deform and passes over the free end of the cantilever plate 160 along the direction from the first end 112 to the second end 114 under the guidance of the guide bar 120, the cantilever plate 160 is used for limiting the clamping block 240, and the drain cover 20 is reliably fixed in the opening 110. The guide structure formed by the guide bar 120 and the guide rail 220, the elastic limit structure formed by the clamping block 240 and the cantilever plate 160, and the two structures are matched and fixed, so that the firmness of fixing the drainage cover 20 and the machine shell 10 is improved, the drainage cover cannot shake after being installed in place, and the drainage cover is convenient to install and detach. The drain cover 20 is slid into a fixed manner, so that the drain cover is applicable to household appliance shells with various surface appearances, can be matched with the surfaces of machines, and has high aesthetic degree.

The utility model also relates to a beverage machine comprising a main body, wherein the main body is provided with a drain structure 100 as in the above embodiments. The beverage preparation machine can be a device for brewing beverages, such as a tea machine, a coffee machine, a milk tea machine and the like, and can also be a water dispenser.

The drainage structure and the beverage machine of the utility model have the advantages that the drainage cover 20 is very convenient to detach and install when the drainage operation is carried out, and the detachment and the installation can be carried out more conveniently and rapidly only by slightly sliding along the machine shell. Moreover, through the cooperation of guide structure and elasticity limit structure, the fixed firm reliable of drainage lid on the machine casing, the outside of drainage lid 20 aligns with the machine casing 10 that forms opening 110, and the appearance influence is little, and the drainage lid 20 after the installation with machine casing 10 looks adaptation, the integration is better, promotes the visual effect of complete machine.

It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.

Claims (10)

1. A drainage structure, comprising:

a drain pipe having an inlet end connected to the tank and an outlet end selectively projecting from an opening in the machine housing;

the plug is used for closing the outlet end of the drain pipe;

a drain cover having an inner side fixedly connected to the plug and an outer side opposite to the inner side, the drain cover detachably closing the opening;

the method is characterized in that: the opening has a first end along a face of the opening and a second end opposite to the first end, and a connection direction of the drain cover and the machine housing is consistent with a direction from the first end to the second end.

2. The drain structure of claim 1, wherein an outer side of the drain cover is aligned with a machine housing forming the opening.

3. The drain structure according to claim 1, wherein the opening is provided with a guide bar extending from the second end to the first end, and the inside of the drain cover is provided with a guide rail that moves along the guide bar to guide the drain cover; the guide rail comprises a side plate part extending from the inner side of the drain cover and a bottom plate part connected with the side plate part, wherein the bottom plate part is arranged at one end of the side plate part far away from the drain cover along the direction parallel to the guide strip, and a guide groove for accommodating at least part of the guide strip is formed between the side plate part and the bottom plate part.

4. A drainage structure according to claim 3 wherein one end of the base plate portion forms a closed end and the other end of the base plate portion forms an open end in the direction from the first end to the second end, the guide bar being inserted into the guide groove from the open end, the guide groove having a gradually increasing accommodation space from the closed end to the middle of the base plate portion, the guide bar having an end shape that is in shape-fit with the guide groove.

5. The drain structure according to claim 1, wherein the opening is provided with a guide bar extending from the second end to the first end, and the inside of the drain cover is provided with a guide rail that moves along the guide bar to guide the drain cover; the free end of the guide strip forms a first guide surface, one surface of the guide strip, which faces the guide rail, is provided with a boss, a second guide surface is formed along the direction from the first end to the second end by the boss, and the second guide surface and the first guide surface are arranged at intervals.

6. The drain structure according to claim 1, wherein the opening is provided with a cantilever plate extending from a first end to a second end, a fixture block is provided on an inner side of the drain cover, the fixture block is limited by the cantilever plate, a free end of the cantilever plate has a deformation away from the drain cover under an external force, the drain cover has a detachment path from the second end to the first end, and the fixture block applies the external force to apply a force generated by deformation of the cantilever plate to the fixture block on the detachment path.

7. The drain structure according to claim 6, wherein the cartridge includes a body in a shape of a straight line in a direction perpendicular to the first end to the second end, and reinforcing ends at both ends of the body, each of the reinforcing ends having a cross-sectional area parallel to the drain cover gradually decreasing from a bottom of the connection drain cover in a direction away from the drain cover.

8. The drain structure of claim 6, wherein one of the latch and the cantilever plate has an arcuate surface, and the other of the latch and the cantilever plate has a sloped surface, the arcuate surface and the sloped surface being disposed opposite each other along a removal path of the drain cover from the second end to the first end.

9. The drain structure according to claim 1, wherein the drain cover is provided with a recess portion and a protruding edge on one side of the recess portion on the outer side, and the recess portion and the protruding edge are arranged along a direction from the second end to the first end.

10. A beverage machine comprising a machine housing and a water tank arranged in the machine housing, characterized in that the beverage machine further comprises a drain structure according to one of claims 1 to 9.