CN218899369U - Cup washing device - Google Patents

Abstract

The utility model provides a wash cup device, includes glass stand, shower nozzle, seat dish and inlet tube, and the shower nozzle is installed in the inlet tube, is equipped with the inner tube in the inlet tube, with the water route of control inlet tube and shower nozzle close and open by the inner tube, the shower nozzle includes first play water channel, spout ball, support post and shower nozzle fixed column, and the shower nozzle is linked together through shower nozzle fixed column and inlet tube connection, has the water spray hole and the first play water channel of a plurality of different angles at spouting ball upper surface, and the glass stand is spouted the supporting piece of ball mouth and a plurality of disk-shaped that are the supporting rod formation of circumference form uniform arrangement at spouting the ball mouth, including a plurality of calorie posts that one side set up, be provided with in spouting ball mouth's inside with spout ball matched with first arc surface, calorie post includes calorie post bottom surface, its calorie post bottom surface enclose into the opening be less than spouts ball, calorie post bottom surface supports to press on the support post, the chucking cup stand can rotationally the cover joint outside spouting the ball by its calorie post. The utility model has convenient installation and disassembly and saves water.

Description

Cup washing device

Technical Field

The utility model relates to a container washing device, in particular to a cup washing device.

Background

The cup cleaning device is suitable for families and various tea houses and is used for cleaning water cups, teacups, milk bottles and various beverage cup devices. Because of the characteristics of small cup mouth and deeper cup groove of a common water cup or teacup, the traditional manual cup washing mode is difficult to clean, and the inside of the cup is cleaned by a plurality of high-pressure water columns sprayed out by a spray head of the cup washing device. The existing cup washing device comprises a spray head, a cup holder, a movable shaft and a support, wherein the spray head, the cup holder and the movable shaft are fixed together and can move up and down relative to the support, when the cup is placed on the cup holder, the spray head moves down by a certain stroke or returns under the action of gravity or the action of downward pressure of a user, the spray head moves up and down along with the movable shaft, and the waterway is communicated or disconnected, so that water switching is realized. However, in the existing cup washing device, the spray head and the cup holder are fixedly arranged, so that the cup can be cleaned only by the sprayed high-pressure water column of water spray in the cup washing device, if the high-pressure water column is difficult to reach, the position is often not cleaned in place, therefore, in order to clean at multiple angles, a plurality of spray holes with different angles are required to be arranged on the spray head to achieve the aim of cleaning the interior of the cup at multiple angles, the water spray holes with multiple holes are used, the water consumption is increased in the using process, the water is easily wasted in the cup washing process, and the water spray pressure at the spray holes is greatly reduced due to the increased water consumption; in addition, in order to be convenient to use, the existing cup washing device is often arranged on a water inlet pipe beside a water tank or a tea table, and the lower part of the water tank protrudes out of the space under the water tank or the tea table, so that the existing cup washing device is inconvenient to fixedly install a spray head and a cup holder.

Disclosure of Invention

Therefore, in order to solve the problems that the existing cup washing device is installed and a plurality of water spray holes exist in a spray head of the cup washing device, so that more water is needed in the cleaning process, the cup washing device which is easy to install and saves water is provided.

In order to solve the problems, the cup washing device comprises a cup holder, a spray head, a seat disk and a water inlet pipe fixedly connected below the seat disk, wherein the spray head is installed on the water inlet pipe, an inner pipe which can move up and down and is connected with the spray head is further arranged in the water inlet pipe, the water paths of the water inlet pipe and the spray head are controlled to be closed and opened by the aid of the inner pipe which can move up and down, the spray head comprises a first water outlet channel, a spray ball, a bearing column and a spray head fixing column which are arranged on one side of the spray head, the spray head is connected with the water inlet pipe through the spray head fixing column, the upper surface of the spray ball is provided with a plurality of water spray holes with different angles and the first water outlet channel, one side of the first water outlet channel is provided with a first thread for connecting the inner pipe, the cup holder is a plurality of disc-shaped supporting pieces which are uniformly arranged on one side of the spray ball openings in a circumferential manner, the spray ball openings comprise a plurality of clamping columns which are arranged on one side of the spray ball openings, the inner clamping columns are arranged on the bottom surfaces of the spray ball openings, the inner clamping columns are matched with the bottom surfaces of the spray ball, and the bottom surfaces of the spray ball can be connected with the bottom surfaces of the spray ball by the clamping columns in a rotary mode, and the outer diameter of the bottom surface of the spray ball is formed by the round ball. According to the utility model, the ball spraying mouth on the cup holder is rotatably connected with the ball spraying mouth, so that the spray head and the cup holder are convenient to install and even the cup holder is convenient to detach from the spray head, and the cup holder is convenient to clean or replace.

Further, a second arc surface is arranged between the bottom surface of the clamping column and the first arc surface, and the cup holder of the supporting column supported on the spray ball can change the angle between the disk surface formed by the supporting rod of the cup holder and the supporting column by means of the second arc surface. The setting of the second arc surface, the cup that places on the cup holder washs, can change the angle of the quotation that the cup holder formed by the supporting pole and supporting column manually, namely under the fixed condition of the shower nozzle's spray ball, has changed the angle that the cup washs, the utility model, under the condition of having limited water spray holes on the spray ball, can also reach the shower nozzle that has the existing cup washing device and set up a large number of schemes of water spray holes of different angle orientation, therefore, can set up a small amount of water spray holes on the spray ball of the utility model, on one hand can achieve the purpose of saving water, on the other hand because of having set up less water spray holes, is favorable to improving the water spray pressure of water spray hole department, is favorable to thoroughly washing the purpose of cup more.

Further, the support rod is provided with an anti-slip structure for preventing the cup from sliding.

Further, the anti-skid structure is a plurality of hemispherical anti-skid balls distributed on the supporting rods.

Further, the water inlet pipe is internally provided with a pipe body part consisting of a first hole section, a second hole section, a third hole section and a fourth hole section, the cross section of the first hole section is provided with a regular polygon structure matched with the spray head fixing column, the spray head fixing column of the spray head is connected in a matched mode through the first hole section, the second hole section is larger than the third hole section in inner diameter, a step surface-up step is formed between the second hole section and the third hole section, the inner diameter of the fourth hole section is also larger than the inner diameter of the third hole section, and a step surface-down step is formed between the third hole section and the fourth hole section.

Further, the inner pipe, including the pipe shaft, the one end of pipe shaft be provided with the limit head, the pipe shaft be equipped with the second screw thread in its one side of keeping away from the limit head, the pipe shaft pipe diameter size with third hole section size match, the inside second water outlet channel that still is equipped with of pipe shaft, and be provided with a plurality of inlet openings in its side direction in the end of second water outlet channel, the inner pipe, the maximum size of its limit head be greater than the third hole section of inlet tube, the inner pipe, the maximum size of its limit head be less than the fourth hole section of inlet tube for the in-process that the inner pipe goes deep into the inlet tube, the pipe shaft of inner pipe is through the shower nozzle department that the third hole section goes deep into the second hole section inside, and with the first threaded connection of shower nozzle together, the limit head is restricted under the step that forms between third hole section and fourth hole section, so that inner pipe and shower nozzle form one can be movable about in the inlet tube and the water inlet tube and under the side direction and the step that has the third hole section and the water outlet opening, the water channel, water route, the water route that forms by the fourth hole or the water inlet and outlet opening, the linkage member.

Further, a spring is sleeved outside the pipe body, one end of the spring is supported on a step formed between the second hole section and the third hole section, and the upper end of the spring is propped against the lower part of the spray head. Through the arrangement of the spring, the limiting head of the inner tube can be tightly tensioned and pressed at the step formed between the third hole section and the fourth hole section under the action of the pressing of the spray head without external force, and therefore, the water channel formed by the fourth hole section, the water inlet hole, the second water outlet channel, the first water outlet channel and the water spraying hole is in a closed state, and therefore, the cup washing device is in a closed state without water inlet.

Further, a first sealing groove is arranged between the pipe body and the limiting head, a first sealing ring is sleeved outside the first sealing groove, and the first sealing ring is fixed through the first sealing groove. When the spacing head of inner tube supports and presses the step that forms between by third hole section and fourth hole section, the water seal of fourth hole section in the inlet tube can be fine outside the third hole section of inlet tube to can avoid the water in the fourth hole section in the inlet tube under the effect of water pressure, leak the upper portion of inlet tube through the gap between inner tube and the third hole section, first seal groove setting can fix first sealing washer better, prevent that the in-process first sealing washer of inner tube from coming off from top to bottom activity.

Further, the spray head is provided with more than one second sealing groove, a second sealing ring is sleeved outside the second sealing groove, and the second sealing ring is fixed by the second sealing groove. After having set up the second sealing washer on the shower nozzle, can guarantee to have certain physical fit's elasticity between shower nozzle and the inlet tube through the second sealing washer, avoid the spring to pop out the shower nozzle fixed column of shower nozzle outside the first hole section of inlet tube, and the setting of second sealing washer for when the spacing head of inner tube supports the step of pressing between by third hole section and fourth hole section formation, the air of sealed space department between first sealing washer and second sealing washer owing to have certain pressure in order to resist the water pressure of spacing head downside, thereby can further guarantee the sealed effect of first sealing washer.

According to the utility model, the spray head is connected with the inside of the water inlet pipe of the inner pipe, the front end of the limiting head of the inner pipe is provided with the mounting groove, and the spray head can be tightly connected with the inner pipe thread through the mounting groove, so that the inside of the cup washing device is extremely convenient to install.

According to the utility model, the seat plate and the water inlet pipe are fixedly arranged together through the gland nut, so that the assembly and the disassembly are convenient.

The beneficial effects of the utility model are as follows: when the cup holder is used, the cup to be cleaned is inversely arranged on the cup holder, the cup is pressed down, the waterway channel formed by the fourth hole section, the water inlet hole, the second water outlet channel, the first water outlet channel and the water spraying hole is opened, tap water enters the water spraying hole from the water inlet pipe, the cup can be cleaned under the action of water pressure, the angle between the disk surface of the cup holder formed by the supporting rod and the supporting column is changed, so that the cup can be sprayed at all angles without dead angles by changing the cleaning angle on the premise of not moving the spraying ball, and compared with the traditional cup cleaning mode by spraying, the cleaning effect is obviously improved; meanwhile, the cup holder is rotatably adjusted to clean the cup, so that a small number of water spraying holes can be formed in the spray ball, on one hand, the aim of saving water can be achieved, and on the other hand, the small number of water spraying holes is beneficial to improving the water spraying pressure at the water spraying holes and is more beneficial to thoroughly cleaning the cup.

Drawings

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is an exploded perspective view of the present utility model.

Fig. 3 is a schematic top view of the present utility model.

FIG. 4 isbase:Sub>A schematic view of the cross-section in the direction A-A in FIG. 3.

Fig. 5 is an enlarged schematic view of part of a in fig. 4.

Fig. 6 is a schematic perspective view of a spray head.

Fig. 7 is a schematic view of the internal cross-section of the spray head.

Fig. 8 is a perspective view of the cup holder.

Fig. 9 is a schematic plan view of the upper surface of the cup holder.

Fig. 10 is a schematic view of the cross section in the direction B-B in fig. 9.

Fig. 11 is a schematic perspective view of the water inlet pipe.

Fig. 12 is a schematic view of the internal cross-section of the inlet pipe.

Fig. 13 is a schematic perspective view of the inner tube.

Fig. 14 is a schematic view of the internal cross-section of the inner tube.

Wherein: 1-cup holder, 1 a-ball spraying port, 1 b-support rod, 1 c-clamping column, 1 d-first arc surface, 1 e-second arc surface, 1 f-clamping column bottom surface, 1 g-anti-slip structure, 2-seat disk, 3-water inlet pipe, 3 a-first hole section, 3 b-second hole section, 3 c-third hole section, 3 d-fourth hole section, 3 e-third seal groove, 4-spray nozzle, 4 a-ball spraying port, 4 b-water spraying hole, 4 c-support column, 4 d-spray nozzle fixing column, 4 e-second seal groove, 4 f-first water outlet channel, 4 g-first screw thread, 5-inner pipe, 5 a-pipe body, 5 b-second water outlet channel, 5 c-water inlet hole, 5 d-limit head, 5 e-second screw thread, 5 f-first seal groove, 5 g-mounting groove, 6-spring, 7-gland, 8-third seal ring, 9-second seal ring, 10-first seal ring, 11-seal ring, and fixing piece.

Detailed Description

In order to further explain the technical scheme of the utility model, the utility model is explained in detail by specific examples.

In this embodiment, referring to fig. 1-4, a cup washing device includes a cup holder 1, a spray head 4, a seat pan 2, and a water inlet pipe 3 fixedly connected below the seat pan 2, wherein the seat pan 2 and the water inlet pipe 3 are fixedly installed together by a gland nut 7, a gap between the water inlet pipe 3 and the seat pan 2 is sealed by a third sealing ring 8 installed in a third sealing groove 3e on the water inlet pipe 3, the spray head 4 is installed in the water inlet pipe 3, an inner pipe 5 which can move up and down and is connected with the spray head 4 is further provided in the water inlet pipe 3, and the water paths of the water inlet pipe 3 and the spray head 4 are controlled to be closed and opened by the aid of the inner pipe 5 which can move up and down.

In this embodiment, referring to fig. 6 and 7, the spray head 4 includes a first water outlet channel 4f, a spray ball 4a, a support column 4c and a spray head fixing column 4d with a regular polygon shape, wherein the upper surface of the spray ball 4a is provided with a plurality of water spray holes 4b with different angles and communicated with the first water outlet channel 4f, and a first thread 4g for connecting the inner pipe 5 is arranged on one side of the first water outlet channel 4f of the spray head 4 far from the spray ball 4 a; referring to fig. 8-10, a cup holder 1 is a disk-shaped supporting member formed by a ball spraying port 1a and a plurality of supporting rods 1b uniformly arranged on the ball spraying port 1a in a circumferential shape, wherein the ball spraying port 1a comprises a plurality of clamping columns 1c arranged on one side of the ball spraying port 1a, a first arc surface 1d matched with a ball spraying 4a is arranged in the ball spraying port 1a, the clamping columns 1c comprise clamping column bottom surfaces 1f, openings surrounded by the clamping column bottom surfaces 1f are smaller than the outer diameter of the ball spraying 4a, in the installation process, the clamping columns 1c can be in rotatable clamping fit connection with the outside of the ball spraying 4a through elasticity of the clamping columns, the clamping column bottom surfaces 1f are abutted against the supporting columns 4c, the cup holder 1 is supported on the ball spraying 4 and the cup holder 1 through the supporting columns 4c, and the ball spraying 4a are connected and installed through the mode, and water spraying holes 4b are arranged on the upper surfaces of the ball spraying 4a and are all positioned above the connection position of the cup holder 1 and the ball spraying 4a, and the rotation connection of the ball spraying 4a and the cup holder 1 is not affected by water spraying holes 4 b; in this embodiment, the support rod 1b of the cup holder 1 is provided with an anti-slip structure 1g for preventing the cup from slipping, and more preferably, the anti-slip structure 1g adopts a plurality of hemispherical anti-slip balls distributed on the support rod 1b, the cup to be cleaned is fastened on the support rod 1b located outside the spray ball 4a, and the high-pressure water column generated by the water spray holes 4b on the spray ball 4a is cleaned.

After the spray ball 4 and the cup holder 1 are connected, referring to the internal structure disclosed in fig. 4 and 5, the second circular arc surface 1e is in transition between the bottom surface 1f of the clamping column and the first circular arc surface 1d, so that a space for facilitating rotation of the cup holder 1 is formed below the connection part of the spray ball 4 and the cup holder 1, and therefore, the cup holder 1 of the supporting column 4c supported on the spray ball 4 changes the angle between the disk surface of the cup holder 1 formed by the supporting rod 1b and the supporting column 4c by means of the force and the direction of pressing the cup through the second circular arc surface 1 e. Therefore, in the process of cleaning the cup placed on the cup holder 1, the angle between the tray surface formed by the support rod 1b and the support column 4c of the cup holder 1 can be manually changed, namely, the angle of cleaning the cup is changed under the condition of fixing the spray ball 4a of the spray head 4, so that in the embodiment, the spray ball 4a can achieve the aim of thoroughly cleaning the cup under the condition that a plurality of spray holes 4b with different angles are arranged on the spray head 4 of the existing cup cleaning device, thereby saving water.

In this embodiment, referring to fig. 11 and 12, the water inlet pipe 3 is a pipe body member formed by a first hole section 3a, a second hole section 3b, a third hole section 3c and a fourth hole section 3d, wherein the cross section of the first hole section 3a has a regular polygon structure matched with the spray head fixing column 4d, the spray head fixing column 4d of the spray head 4 is connected in a matched manner by the first hole section 3a, the spray head fixing column 4d of the spray head 4 is installed in the first hole section 3a, the spray head 4 can not rotate relative to the water inlet pipe 3 under the condition that the spray head 4 can move up and down along the water inlet pipe 3 through the first hole section 3a, so that the rotation of the cup and the cup holder 1 can not rotate relative to the water inlet pipe 3 during the process of cleaning a cup by the cup cleaning device; the second hole section 3b is larger than the third hole section 3c in inner diameter, a step surface upward is formed between the second hole section 3b and the third hole section 3c, the fourth hole section 3d is also larger than the third hole section 3c in inner diameter, a step surface downward is formed between the third hole section 3c and the fourth hole section 3d, and through the arrangement, an inner pipe 5 and a spray head 4 can be formed in the water inlet pipe 3, the upper and lower movable steps can be limited, and the spray head 4 and the inner pipe 5 can be conveniently installed.

In this embodiment, referring to fig. 13 and 14, the inner pipe 5 includes a pipe body 5a, one end of the pipe body 5a is provided with a limiting head 5d, the pipe body 5a is provided with a second thread 5e on one side far away from the limiting head 5d, the pipe diameter of the pipe body 5a is matched with the size of the third hole section 3c, a second water outlet channel 5b is further provided inside the pipe body 5a, a plurality of water inlet holes 5c are provided at the end of the second water outlet channel 5b in the lateral direction, the maximum size of the limiting head 5d of the inner pipe 5 is larger than that of the third hole section 3c of the water inlet pipe 3, the maximum size of the limiting head 5d of the inner pipe 5 is smaller than that of the fourth hole section 3d of the water inlet pipe 3, so that in the process of the inner pipe 5 is extended into the water inlet pipe 3, the pipe body 5a of the inner pipe 5 is extended into the spray head 4 of the second hole section 3b through the third hole section 3c, is connected with the first thread 4g of the spray head 4, and quick and convenient installation is achieved through the front end of the limiting head 5d provided with a mounting groove 5g, the limiting head 5d of the connected inner pipe 5 is limited below the step formed between the third hole section 3c and the fourth hole section 3d, so that the inner pipe 5 and the spray head 4 form a linkage member which can move up and down in the water inlet pipe 3 and has the step limitation formed between the third hole section 3c and the fourth hole section 3d, by means of the up and down movement of the up and down linkage member, the water path channel formed by the fourth hole section 3d, the water inlet hole 5c, the second water outlet channel 5b, the first water outlet channel 4f and the water spray hole 4b is closed or opened, in order to enable the linkage member to reset in the up and down movement, in this embodiment, the outside of the pipe body 5a is sleeved with a spring 6, in particular, one end of the spring 6 is supported on the step formed between the second hole section 3b and the third hole section 3c, the upper end of the spring 6 is pressed against the lower part of the spray head 4, after the spring 6 is arranged, the limiting head 5d of the inner pipe 5 can be tightly tensioned and pressed against a step formed between the third hole section 3c and the fourth hole section 3d under the action of the pressing force of the spray head 4, at the moment, the water inlet 5c of the inner pipe 5 and the fourth hole section 3d of the water inlet pipe 3 are in a closed state, so that the waterway channel formed by the fourth hole section 3d, the water inlet 5c, the second water outlet 5b, the first water outlet 4f and the water spraying hole 4b is in a closed state, and therefore, the cup washing device is in a closed state without water inlet.

In order to ensure the sealing performance of the cup washing device and prevent the cup washing device from leaking, the inner tube 5 and the spray head 4 in the embodiment adopt corresponding sealing structures, specifically, a first sealing ring 10 is arranged outside a tube body 5a of the inner tube 5, a first sealing groove 5f is arranged between the tube body 5a and a limiting head 5d in a sleeved mode, the first sealing ring 10 is fixed by the first sealing groove 5f, therefore, when the limiting head 5d of the inner tube 5 is abutted against a step formed between a third hole section 3c and a fourth hole section 3d, the first sealing ring 10 can well seal the water in the fourth hole section 3d in the water inlet tube 3 outside the third hole section 3c of the water inlet tube 3, so that the water in the fourth hole section 3d in the water inlet tube 3 is prevented from leaking to the upper portion of the water inlet tube 3 through a gap between the inner tube 5 and the third hole section 3c under the action of water pressure, the first sealing groove 5f can better fix the first sealing ring 10, prevent the first sealing ring 10 from falling off in the process of moving the inner pipe 5 up and down, and likewise, the spray head 4 is provided with more than one second sealing groove 4e, the second sealing groove 4e is sleeved with the second sealing ring 9, the second sealing ring 9 is fixed by the second sealing groove 4e, by adopting the scheme, certain physical matching tightness between the spray head 4 and the water inlet pipe 3 can be ensured by the second sealing ring 9, the spring 6 is prevented from ejecting the spray head fixing column 4d of the spray head 4 out of the first hole section 3a of the water inlet pipe 3, and the limit head 5d of the inner pipe 5 can also be enabled to press against the air at the gap between the first sealing ring 10 and the second sealing ring 9 when the limit head 5d is pressed against the step formed between the third hole section 3c and the fourth hole section 3d, because of certain pressure is provided to resist the water pressure on the lower side of the limit head 5d, thereby further ensuring the sealing effect of the first seal ring 10.

In order to ensure better installation, the embodiment further comprises a fixing head 11 and a fixing piece 12, and the cup washing device is connected and fixed with an installed tap water pipeline through the fixing head 11 and the fixing piece 12, and the cup washing device and the tap water pipeline are connected and fixed in the prior art, so that detailed details are not repeated in the embodiment.

The foregoing examples merely illustrate embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (9)

1. The utility model provides a cup cleaning device, includes glass stand, shower nozzle, seat dish and fixed connection in the inlet tube of seat dish below, the shower nozzle install in the inlet tube, the inlet tube in still be equipped with movable about and with the inner tube that the shower nozzle is connected, with the water route of control inlet tube and shower nozzle through movable about and close and open its characterized in that: the spray head comprises a first water outlet channel, a spray ball, a bearing column and a spray head fixing column, wherein the spray head fixing column is in a regular polygon shape, the spray head is connected with a water inlet pipe through the spray head fixing column, the upper surface of the spray ball is provided with a plurality of water spray holes with different angles and is communicated with the first water outlet channel, the first water outlet channel of the spray head is far away from the spray ball, a first thread used for connecting an inner pipe is arranged on one side of the first water outlet channel, a cup holder is a support piece which is in a disc shape and is formed by the spray ball port and a plurality of bearing rods which are uniformly arranged in a circumference shape and are arranged on the spray ball port, the spray ball port comprises a plurality of clamping columns which are arranged on one side of the spray ball port, the inner portion of the spray ball port is provided with a first arc surface matched with the spray ball, the clamping columns comprise clamping column bottom surfaces, openings formed by surrounding the clamping column bottom surfaces are smaller than the outer diameter of the spray ball, and the clamping column bottom surfaces are propped against the bearing column, and can be rotatably sleeved and connected with the spray ball in a clamping mode by virtue of the clamping columns.

2. A cup-washing device according to claim 1, wherein: the cup holder of the bearing column on the spray ball can change the angle between the tray surface formed by the bearing rod of the cup holder and the bearing column by the aid of the second arc surface.

3. A cup-washing device according to claim 1, wherein: the support rod is provided with an anti-slip structure for preventing the cup body from sliding.

4. A cup-washing device according to claim 3, wherein: the anti-skid structure is a plurality of hemispherical anti-skid balls distributed on the supporting rods.

5. A cup-washing device according to claim 1, wherein: the water inlet pipe is characterized in that the water inlet pipe is internally provided with a pipe body part consisting of a first hole section, a second hole section, a third hole section and a fourth hole section, the cross section of the first hole section is provided with a regular polygon structure matched with the spray head fixing column, the spray head fixing column of the spray head is connected in a matched mode through the first hole section, the second hole section is larger than the third hole section in inner diameter, a step surface-up step is formed between the second hole section and the third hole section, the inner diameter of the fourth hole section is also larger than the inner diameter of the third hole section, and a step surface-down step is formed between the third hole section and the fourth hole section.

6. A cup-washing device according to claim 5, wherein: the inner pipe comprises a pipe body, one end of the pipe body is provided with a limiting head, one side of the pipe body, far away from the limiting head, is provided with second threads, the pipe diameter of the pipe body is matched with the size of the third hole section, a second water outlet channel is further formed in the pipe body, a plurality of water inlets are formed in the tail end of the second water outlet channel in the lateral direction of the second water outlet channel, the maximum size of the limiting head of the inner pipe is larger than that of the third hole section of the water inlet pipe, the maximum size of the limiting head of the inner pipe is smaller than that of the fourth hole section of the water inlet pipe, the pipe body of the inner pipe penetrates into a spray head in the second hole section through the third hole section, and is connected with the first threads of the spray head together, the limiting head is limited below a step formed between the third hole section and the fourth hole section, the inner pipe and the spray head form a water inlet channel which can move up and down in the water inlet pipe and forms a water outlet channel with the third hole section and a water outlet channel which is formed by the upper and lower step section and the fourth hole section, or the water outlet channel of the fourth hole section and the water outlet channel which is opened by the fourth hole section and the fourth hole section.

7. A cup-washing device according to claim 6, wherein: the outside of the pipe body is also sleeved with a spring, one end of the spring is supported on a step formed between the second hole section and the third hole section, and the upper end of the spring is propped against the lower part of the spray head.

8. A cup-washing device according to claim 6, wherein: a first sealing groove is arranged between the pipe body and the limiting head, a first sealing ring is sleeved outside the first sealing groove, and the first sealing ring is fixed through the first sealing groove.

9. A cup-washing device according to claim 1, wherein: the spray head is provided with more than one second sealing groove, the second sealing groove is sleeved with a second sealing ring, and the second sealing ring is fixed by the second sealing groove.

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