CN211432374U

CN211432374U - Liquid heater

Info

Publication number: CN211432374U
Application number: CN201921624292.0U
Authority: CN
Inventors: 朱泽春; 蒋航科
Original assignee: Joyoung Co Ltd
Current assignee: Hangzhou Jiuchuang Home Appliances Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-09-08
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a liquid heater, characterized by: the water outlet device comprises a machine body and a sliding channel arranged on the machine body, wherein a water outlet head is connected in the sliding channel in a sliding mode, the water outlet head slides along the sliding channel to be provided with a first position and a second position, and a limiting structure used for limiting the sliding of the water outlet head is arranged on a sliding stroke between the first position and the second position. After the water outlet head slides to the designated position, the water outlet head stops moving through the limiting effect of the limiting structure, so that the water outlet head is prevented from deviating from the designated position under the inertia effect. When the water outlet head slides to the first position, the first limiting structure is used for limiting the water outlet head to fall off the machine body; when the water outlet head slides to the second position, the second limiting structure is used for limiting the water outlet head to move towards the inside of the machine body.

Description

Liquid heater

Technical Field

The utility model relates to the field of household appliances, in particular to liquid heater.

Background

The liquid heater is a device for heating liquid, and comprises a water dispenser, a soybean milk machine, a boiled water pot and a health preserving kettle.

At present, chinese patent No. CN208259552U discloses a liquid heater, which comprises a kettle body and a kettle lid covering the kettle body, wherein the kettle lid is slidably connected with a water outlet. The user can drive the sliding water outlet head to slide to the designated position, but after the water outlet head slides to the designated position, the water outlet head still can slide for a certain distance under the action of inertia, so that the water outlet head cannot accurately move to the designated position.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a not enough to prior art exists, the utility model aims to provide a liquid heater, it has limit structure to the restriction goes out the hydroecium and slides under inertial action.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a liquid heater, includes the organism, establishes the passageway that slides on the organism, sliding connection has a water outlet head in the passageway that slides, water outlet head slides along the passageway that slides and has primary importance and second position, primary importance with be equipped with on the slip stroke between the second position and be used for restricting the gliding limit structure of water outlet head.

Preferably, the limiting structure comprises a first limiting structure for limiting the water outlet head to be separated from the machine body when the water outlet head slides to the first position.

Preferably, the first limiting structure comprises a convex rib arranged on the outer side wall of the water outlet head and a groove arranged on the inner wall of the sliding channel and used for enabling the convex rib to slide, and when the water outlet head slides to the first position, the convex rib is abutted against the inner groove wall at the end part of the groove to limit the water outlet head to fall off the machine body.

Preferably, the organism has the cover that slides outside the hydrohead of cover, first limit structure is including establishing the lug on the hydrohead, establishing and be used for dodging the hole of dodging of lug on the cover that slides, and when the hydrohead slided to first position, the lug was with dodging the inner hole wall butt of hole one end to the restriction hydrohead breaks away from the organism.

Preferably, the limiting structure comprises a second limiting structure for limiting the water outlet head to move towards the inside of the machine body when the water outlet head slides to the second position.

Preferably, the second limit structure comprises a clamping piece fixed on the machine body, and when the water outlet head slides to the second position, the clamping piece is clamped with the water outlet head to limit the water outlet head to slide.

Preferably, the machine body is provided with a driving piece for driving the water outlet head to slide along the sliding channel.

Preferably, the driving piece is a spring, one end of the spring is abutted against the inside of the machine body, and the other end of the spring is abutted against the water outlet head.

Preferably, the organism includes the fuselage, covers the lid that closes at the fuselage, the passageway that slides is established on the fuselage.

Preferably, the fuselage includes the shell, fixes the cover that slides at the shell inner wall, the through-hole is worn to be equipped with by the shell lateral wall, through-hole, the cover hole intercommunication that slides to form the passageway that slides.

To sum up, the utility model discloses the beneficial effect who contrasts in prior art does:

1. after the water outlet head slides to the designated position, the water outlet head stops moving through the limiting effect of the limiting structure, so that the water outlet head is prevented from deviating from the designated position under the inertia effect;

2. when the water outlet head slides to the first position, the first limiting structure is used for limiting the water outlet head to fall off the machine body; when the water outlet head slides to the second position, the second limiting structure is used for limiting the water outlet head to move towards the inside of the machine body;

3. when the water outlet head slides to the first position, the convex rib is abutted against the abutting surface, namely the convex rib is abutted against the inner groove wall at the end part of the groove, so as to limit the water outlet head to be separated from the machine body;

4. when the water outlet head slides to the first position, the convex block is abutted against the inner hole wall of the end, close to the shell, of the avoidance hole so as to limit the water outlet head from being separated from the machine body;

5. the water outlet head cannot continue to slide towards the interior of the machine body due to the blocking of the clamping piece, and meanwhile, the water outlet head is clamped by the clamping piece, so that the water outlet head cannot extend out of the machine body;

6. the water outlet head is driven by the driving piece to extend out of the sliding channel, so that a user does not need to manually pull out the water outlet head from the sliding channel, and the user experience is favorably improved.

Drawings

FIG. 1 is an overall schematic view of an embodiment;

FIG. 2 is a first position diagram of the embodiment;

FIG. 3 is a second position diagram of the embodiment;

FIG. 4 is a schematic view of the internal structure of the embodiment;

FIG. 5 is a schematic view of the support member and the water outlet head;

FIG. 6 is a first configuration of the outlet head and the protective sheath;

FIG. 7 is a second structural view of the water outlet head and the protective cover;

FIG. 8 is a third structural view of the water outlet head and the protective sheath;

FIG. 9 is an exploded view of the faucet and the protective sheath;

FIG. 10 is a first configuration of the faucet;

FIG. 11 is a second block diagram of the faucet;

FIG. 12 is a first cross-sectional view of the spout;

FIG. 13 is an exploded view of the spout;

FIG. 14 is a second cross-sectional view of the spout;

FIG. 15 is a first structural schematic diagram of the embodiment;

FIG. 16 is a second structural diagram of the embodiment;

FIG. 17 is a third structural diagram of the embodiment.

Reference numerals: 1. a body; 2. a machine cover; 3. a body; 31. a housing; 311. a support; 312. a support frame; 313. clamping ribs; 314. a through hole; 4. a water outlet head; 41. a water outlet nozzle; 411. an upper cover; 412. a lower cover; 413. buckling; 42. a protective sleeve; 5. a first position; 6. a second position; 7. a confinement structure; 71. a first limit structure; 711. a groove; 7111. an abutting surface; 712. a rib is protruded; 713. avoiding holes; 714. a bump; 72. a second limit structure; 721. a clamping piece; 8. a slipping channel; 9. a support member; 91. a sliding sleeve; 92. a first member; 93. a second component; 10. a sensing member; 101. a first sensor; 102. a second sensor; 11. a heating element; 12. a circuit board; 13. a water supply unit; 131. a water outlet pipeline; 132. a water pump; 133. an on-off valve; 14. a drive member; 141. a spring; 15. a cover plate; 16. a water inlet; 17. a water outlet; 18. an air outlet; 19. a through hole; 191. an inlet; 20. a boss; 21. an air outlet pipe; 22. a shielding plate; 23. a cavity; 231. a first chamber; 232. a second chamber; 24. a connecting port; 241. a notch; 242. connecting holes; 25. a water blocking member; 26. a water outlet channel; 27. avoiding the groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 1, the liquid heater comprises a machine body 1, a water outlet head 4 arranged on the machine body 1, and a water supply part 13 arranged on the machine body 1 and used for supplying water to the water outlet head 4. The water supply part 13 is respectively communicated with a water source and a water outlet head 4, and the water source is a water tank arranged in the machine body 1; or the water source is a water bottle externally connected with the machine body 1. In other embodiments, the water outlet head 4 may also be in direct communication with a water source.

Referring to fig. 2 and 3, a sliding channel 8 is arranged on the machine body 1, a water outlet head 4 is connected in the sliding channel 8 in a sliding manner, the water outlet head 4 has a first position 5 and a second position 6 along the sliding channel 8 in a sliding manner, and when the water outlet head 4 slides to the first position 5, the water outlet head 4 extends out of the sliding channel 8 and protrudes out of the machine body 1; when the water outlet head 4 slides to the second position 6, the water outlet head 4 retracts into the sliding channel 8 and is accommodated in the machine body 1.

In this embodiment, when the water outlet head 4 slides to the second position 6, the water outlet head 4 is completely retracted into the machine body 1, and the end of the water outlet head 4 away from the machine body 1 is retracted into the sliding channel 8. In other embodiments, when the water outlet head 4 slides to the second position 6, the water outlet head 4 is partially retracted into the machine body 1, and the end of the water outlet head 4 away from the machine body 1 protrudes out of the machine body 1.

The water outlet head 4 can extend out or retract into the machine body 1 by sliding. When the liquid heater is carried, the water outlet head 4 can be accommodated in the machine body 1 so as to be convenient for carrying. In addition, go out in the hydroecium 4 accomodates into organism 1, go out the hydroecium 4 and be difficult for the collision impaired, be favorable to guaranteeing that the hydroecium 4 can normally go out next time. When the water outlet head 4 is completely retracted into the machine body 1, the end of the water outlet head 4 away from the machine body 1 is not exposed, so that the possibility of collision damage of the water outlet head 4 is further reduced, and the reliability of the water outlet head 4 is improved.

Referring to fig. 3 and 15, the body 1 is provided with a sensing member 10, the water outlet head 4 moves towards the body 1, and the water outlet head 4 triggers the sensing member 10 to limit the water outlet of the water outlet head 4. The water outlet head 4 triggers the sensing element 10, and the sensing element 10 may be triggered when the water outlet head 4 moves to a specified position, or the sensing element 10 may be triggered when the water outlet head 4 changes from a static state to a moving state. In this embodiment, the water outlet head 4 triggers the sensing member 10 by moving to a designated position.

When the water outlet head 4 moves to the second position 6, the water outlet head 4 is accommodated in the machine body 1, the sensing part 10 is triggered to limit the water outlet head 4 to discharge water, and even if the water outlet head 4 is not turned off when the water outlet head 4 is accommodated, the water outlet head 4 can stop discharging water after the sensing part 10 is triggered, so that the water outlet head 4 is prevented from discharging water in the machine body 1, and the possibility of short circuit of an internal circuit of the machine body 1 is reduced.

In this embodiment, the body 1 is provided with a circuit board 12 for receiving the trigger signal of the sensing element 10, and when the water outlet head 4 triggers the sensing element 10, the circuit board 12 controls the water supply component 13 to stop working. The sensor 10 is electronic and controls the operation of the water supply unit 13 through the circuit board 12. In other embodiments, the sensing element 10 is mechanical, the sensing element 10 is a water valve, and the water outlet head 4 moves to drive the water valve to close, so that the water outlet head 4 stops discharging water.

Referring to fig. 3, the body 1 has a water outlet channel 26 and a water blocking member 25, and a part of the water outlet channel 26 is located on the water outlet head 4, and another part is located on the water supply member 13. When the water outlet head 4 moves to the second position 6, the water blocking member 25 blocks the water outlet channel 26, and the water blocking member 25 can block the water outlet channel 26 at the water outlet head 4 and also block the water outlet channel 26 at the water supply part 13. In this embodiment, the water blocking member 25 blocks the water outlet channel 26 at the water outlet head 4 to stop the water outlet of the water outlet head 4.

Even if the sensing member 10 fails, the water outlet head 4 still outputs water, and when the water outlet head 4 moves to the second position 6, the water blocking member 25 can block the water outlet channel 26 to further limit the water output of the water outlet head 4 located in the machine body 1, which is beneficial to preventing the water outlet head 4 from outputting water in a non-working state.

Specifically, the water outlet 17 is arranged on the water outlet head 4, the water outlet 17 is an outlet of the water outlet channel 26, the water blocking member 25 is installed on the machine body 1, and when the water outlet head 4 slides to the second position 6, the water blocking member 25 seals the water outlet 17. After the water outlet head 4 stops discharging water, water remains in the water outlet head. When the water outlet head 4 slides to the second position 6, the water outlet 17 is sealed by the water blocking member 25, so that water in the water outlet head 4 is sealed in the water outlet head 4, and residual water in the water outlet head 4 is prevented from leaking into the machine body 1.

In this embodiment, the machine body 1 includes a housing 31, and a support member 9 disposed in the housing 31 for supporting the water outlet head 4 to slide, and the support member 9 has a sliding channel 8 for the water outlet head 4 to slide. The slide channel 8 can be formed entirely by the support 9 or partially by the support 9. The sliding channel 8 is formed by the support 9 to enlarge the sliding path of the water outlet head 4 and effectively support the water outlet head 4 to slide.

In the present embodiment, referring to fig. 2 and 3, a limiting structure 7 for limiting the sliding of the water outlet head 4 is arranged on the sliding stroke between the first position 5 and the second position 6. After the water outlet head 4 slides to the designated position, the water outlet head 4 stops moving through the limiting effect of the limiting structure 7, so that the water outlet head 4 is prevented from deviating from the designated position under the inertia effect. In this embodiment, the water outlet head 4 includes a water outlet nozzle 41 and a protective sleeve 42 sleeved outside the water outlet nozzle 41, and the water outlet nozzle 41 is protected by the protective sleeve 42, so as to reduce the possibility of collision and damage of the water outlet nozzle 41, which is beneficial to ensuring the reliability of water outlet of the water outlet nozzle 41.

Referring to fig. 1, the machine body 1 has a water outlet pipe 131 communicating with the water outlet head 4, a circuit board 12 controlling water outlet of the water outlet pipe 131, and a heating element 11 for heating the water outlet pipe 131, when the water outlet head 4 is received in the machine body 1, the water outlet head 4 separates the heating element 11 from the circuit board 12, the circuit board 12 is located above the water outlet head 4, and the heating element 11 is located below the water outlet head 4. Through the separation of the water outlet head 4, the high temperature of the heating body 11 is not easy to be transferred to the circuit board 12, which is beneficial to ensuring the working reliability of the circuit board 12. In addition, the circuit board 12 is located above the water outlet head 4, and water leaking from the water outlet head 4 is not easy to fall onto the circuit board 12 under the action of gravity, which is beneficial to ensuring the working reliability of the circuit board 12.

In this embodiment, the water outlet head 4 slides in the sliding channel 8 along a straight line, that is, the sliding channel 8 extends along the straight line, so that the water outlet head 4 can extend out of or retract into the machine body 1 by the shortest distance. In other embodiments, the sliding channel 8 is provided with a fixed point, and the water outlet head 4 is rotatably connected to the fixed point and slides circumferentially around the fixed point to extend or retract into the machine body 1.

Example two:

referring to fig. 1, a liquid heater includes a machine body 1, a water outlet 4 disposed on the machine body 1, a water supply unit 13 disposed on the machine body 1 for supplying water to the water outlet 4, and a heating body disposed in the machine body 1 for heating liquid at the water supply unit 13. The water supply part 13 is respectively communicated with a water source and a water outlet head 4, and the water source is a water tank arranged in the machine body 1; or the water source is a water bottle externally connected with the machine body 1.

Referring to fig. 2 and 3, a sliding channel 8 is formed in the machine body 1, the water outlet head 4 is slidably connected in the sliding channel 8, and the water outlet head 4 has a first position 5 and a second position 6 along the sliding channel 8, in this embodiment, when the water outlet head 4 slides to the first position 5 along the sliding channel 8, the water outlet head 4 with more than half of the length extends out of the sliding channel 8 and protrudes out of the machine body 1, and only the end of the water outlet head 4 facing the machine body 1 is still located in the water outlet head 4; when the water outlet head 4 slides to the second position 6 along the sliding channel 8, more than half of the length of the water outlet head 4 is retracted into the sliding channel 8 and is accommodated into the machine body 1. When not using above-mentioned liquid heater, the user can slide outlet head 4 to second position 6 for outlet head 4 receives organism 1, in order to reduce the possibility that outlet head 4 is broken by the collision, and simultaneously, outlet head 4 no longer obviously protrudes in organism 1, is favorable to promoting user's complete machine appearance experience. In other embodiments, the water outlet head 4 can only slide in the machine body 1 and cannot protrude from the machine body 1, and when the water outlet head 4 slides to the first position 5 and the second position 6, the water outlet head 4 is located in the machine body 1.

And a limiting structure 7 for limiting the sliding of the water outlet head 4 is arranged on the sliding stroke between the first position 5 and the second position 6, and after the water outlet head 4 slides to a specified position, the water outlet head 4 stops moving through the limiting effect of the limiting structure 7 so as to avoid the water outlet head 4 from deviating from the specified position under the inertia effect.

Referring to fig. 2, fig. 3 and fig. 6, in the present embodiment, the limiting structure 7 includes a first limiting structure 71 and a second limiting structure 72, and when the water outlet head 4 slides to the first position 5, the first limiting structure 71 is used to limit the water outlet head 4 from falling off the machine body 1; when the water outlet head 4 slides to the second position 6, the second limiting structure 72 is used to limit the water outlet head 4 from moving towards the machine body 1. In other embodiments, the limiting structure 7 comprises only one of the first and second limiting

structures

71, 72.

Referring to fig. 2, 7 and 8, the first limiting structure 71 includes a rib 712 disposed on the outer side wall of the water outlet head 4, and a groove 711 disposed on the inner wall of the sliding channel 8, wherein the groove 711 extends along the length direction of the sliding channel 8 and is used for slidably connecting the rib 712. One end of the groove 711 is close to the inlet of the sliding channel 8, and the other end of the groove 711 is away from the sliding channel 8 and is provided with an opening. When the water outlet head 4 is installed in the sliding channel 8, the rib 712 slides into the groove 711 from the opening to ensure that the rib 712 is normally connected with the groove 711 in a sliding manner. The inner wall of the groove 711 near the inlet of the sliding channel 8 is an abutting surface 7111, and when the water outlet head 4 slides to the first position 5, the rib 712 abuts against the abutting surface 7111, that is, the rib 712 abuts against the inner wall of the groove 711 at the end to limit the water outlet head 4 from separating from the housing 1.

Referring to fig. 4 and 6, a sliding sleeve 91 sleeved outside the water outlet head 4 is fixed in the machine body 1, and the first limiting structure 71 includes a protrusion 714 provided on the water outlet head 4 and an avoiding hole 713 provided on the sliding sleeve 91 for avoiding the protrusion 714. The relief hole 713 extends along the length of the slip sleeve 91. The number of the avoiding holes 713 is two, and the avoiding holes are respectively positioned on two sides of the sliding sleeve 91. The two sides of the water outlet head 4 are fixed with the convex blocks 714, when the water outlet head 4 is connected in the sliding sleeve 91 in a sliding way, the convex blocks 714 are connected in the avoidance holes 713 in a sliding way. When the water outlet head 4 slides to the first position 5, the protrusion 714 abuts against the inner hole wall of the avoiding hole 713 near the outer side of the machine body 1 to limit the water outlet head 4 from being separated from the machine body 1.

Referring to fig. 2, the second limiting structure 72 includes a latch member 721 fixed on the housing 1, and when the water outlet head 4 slides to the second position 6, the latch member 721 latches with the water outlet head 4 to limit the water outlet head 4 to slide. The water outlet head 4 can not continue to slide towards the inside of the machine body 1 due to the blocking of the clamping piece 721, and meanwhile, the water outlet head 4 is clamped by the clamping piece 721, so that the water outlet head 4 can not extend out of the machine body 1.

Specifically, the locking member 721 is a self-locking switch, and when the water outlet head 4 slides to the first position 5, the water outlet head 4 abuts against the self-locking switch and is clamped by the self-locking switch. If the water outlet head 4 is pressed again, the self-locking switch is stressed again, and the self-locking switch is turned on again, so that the water outlet head 4 can be separated from the self-locking switch. In other embodiments, the locking member 721 can also be a hook, and can be directly locked to the water outlet head 4.

In this embodiment, be equipped with in the organism 1 and be used for driving out the water head 4 along the gliding driving piece 14 of passageway 8 that slides, stretch out in the passageway 8 from sliding through driving piece 14 drive water head 4, and need not that the user is manual to dig out water head 4 in passageway 8 from sliding, be favorable to promoting user experience.

Specifically, the driving member 14 is a spring 141, one end of the spring 141 abuts against the inside of the machine body 1, the other end of the spring 141 abuts against the water outlet head 4, the spring 141 is in a compressed state, and the force of the spring 141 drives the water outlet head 4 to separate from the machine body 1 and slide. In other embodiments, the driving member 14 may also be an air cylinder, and the air cylinder drives the water outlet head 4 to slide back and forth along the sliding channel 8.

In this embodiment, the body 1 includes a body 3 and a cover 2 covering the body 3, and the sliding passage 8 is provided in the body 3. The water outlet head 4 and the sliding channel 8 are both arranged on the machine body 3, and compared with the scheme that the water outlet head 4 is arranged on the machine cover 2, the size and the thickness of the machine cover 2 are not limited by the water outlet head 4 and can be made thinner. In other embodiments, the slide channel 8 may also be provided on the cover 2.

Referring to fig. 2 and 3, in the present embodiment, the body 3 includes a housing 31 and a sliding sleeve 91 fixed on an inner wall of the housing 31, a through hole 314 is formed through a side wall of the housing 31, and the through hole 314 and the sliding sleeve 91 are connected by inner holes to form a sliding channel 8. The sliding sleeve 91 is arranged to guide the water outlet head 4 to slide, so that the depth of the sliding channel 8 is more than 10 times of the thickness of the shell 31, the shell 31 can be thinner under the condition that the depth of the sliding channel 8 is ensured, and material saving is facilitated.

In the present embodiment, the first position 5 is an extreme position of the water outlet head 4 away from the body 3, in which the sliding of the water outlet head 4 away from the body 3 is limited; the second position 6 is the limit position of the water outlet head 4 extending into the machine body 3, and the sliding of the water outlet head 4 extending into the machine body 3 is limited at the position; the distance between the first position 5 and the second position 6 is the slidable travel of the water outlet head 4, i.e. the water outlet head 4 can only slide between the first position 5 and the second position 6. The sliding stroke of the water outlet head 4 is limited to ensure that the water outlet head 4 is stably connected to the machine body 3.

Example three:

referring to fig. 1 and 9, a liquid heating apparatus includes a body 1, a water pump 132 disposed on the body 1, a water outlet 4, and a water outlet pipe 131 communicating the water pump 132 and the water outlet 4, wherein the water outlet 4 includes a water outlet 41 connected to the water outlet pipe 131, and a protective sleeve 42 sleeved outside the water outlet 41, and when the water outlet 4 discharges water, the water outlet 4 protrudes out of the body 1. In this embodiment, the body 1 includes a body 3 and a cover 2 covering the body 3, and the water pump 132, the water outlet pipeline 131 and the water outlet head 4 are all fixed on the body 3. In other embodiments, the body 1 is integrally formed.

In this embodiment, the upper side wall of the body 3 is provided with a sliding channel 8, and when the water outlet head 4 discharges water, the water outlet head 4 slides to protrude out of the body 3; when the water outlet head 4 does not discharge water, the water outlet head 4 can slide into the sliding channel 8, namely, is accommodated in the machine body 3. In other embodiments, the water outlet head 4 is directly fixed to the outer side wall of the body 3.

When the water outlet nozzle 41 discharges hot water, the water outlet nozzle 41 absorbs part of the heat energy, the surface temperature is increased, and the protective sleeve 42 is sleeved on the water outlet nozzle 41, so that a user is prevented from touching the water outlet nozzle 41 more than once, and the possibility that the user is scalded is reduced. In addition, when the water outlet head 4 collides, the protective sleeve 42 covers the water outlet nozzle 41, so that the possibility of damage to the water outlet nozzle 41 can be reduced, and the water outlet nozzle 41 can be ensured to normally discharge water.

Referring to fig. 10 and 11, in this embodiment, the sidewall of the water outlet nozzle 41 is provided with a boss 20, and an air outlet 18 and a water outlet 17 for connecting the interior of the water outlet nozzle 41, at least one of the air outlet 18 and the water outlet 17 is provided on the boss 20, and the sidewall of the protective sleeve 42 is provided with a through hole 19 for avoiding the boss 20, so as to prevent the air outlet 18 and the water outlet 17 on the boss 20 from being shielded by the protective sleeve 42, which is beneficial to ensuring normal drainage and air outlet of the air outlet 18 and the water outlet 17.

In this embodiment, the through hole 19 extends along the longitudinal direction of the protective sheath 42, and an inlet 191 is formed at one end of the protective sheath 42 facing the inside of the body 3. During the process that the protective cover 42 is sleeved on the water outlet nozzle 41 from the end of the water outlet nozzle 41 away from the body 3, the projection 714 can slide into the through hole 19 through the inlet 191 and slide along the through hole 19 to ensure that the boss 20 is normally matched with the through hole 19, so as to prevent the boss 20 from jacking up the protective cover 42.

Specifically, a cover plate 15 for sealing the inlet 191 is covered at the through hole 19, that is, the cover plate 15 for sealing the inlet 191 is covered at the outer sidewall of the protective sheath 42. After the boss 20 slides into the through hole 19 from the inlet 191, the cover plate 15 covers the outer sidewall of the protective sheath 42 and seals the inlet 191 to limit the protrusion 714 from sliding out of the through hole 19 from the inlet 191. The cover plate 15 abuts against the projection 714 to limit the water outlet nozzle 41 to slide away from the protective sleeve 42, so as to limit the water outlet nozzle 41 to slide out of the protective sleeve 42, which is beneficial to ensuring that the protective sleeve 42 is sleeved outside the water outlet nozzle 41.

In other embodiments, the boss 20 is located at the end of the nozzle 41 facing away from the body 3, the through hole 19 is a closed hole, and when the protective sleeve 42 is sleeved on the nozzle 41 from the end of the nozzle 41, the boss 20 passes through the through hole 19 and is located at the end of the protective sleeve 42.

In this embodiment, the boss 20 is located at the bottom side of the water outlet nozzle 41, the water outlet 17 and the air outlet 18 are both located on the boss 20, the cavity 23 is arranged in the water outlet nozzle 41, the cavity 23 is respectively communicated with the water outlet 17 and the air outlet 18, the bottom wall of the cavity 23 is fixed with the air outlet pipe 21 communicated with the water outlet 17, and the end part of the air outlet pipe 21 departing from the air outlet 18 extends downwards. The upper end of the air outlet pipe 21 is higher than the water outlet 17, liquid in the cavity 23 preferentially flows out from the water outlet 17, hot steam in the cavity 23 rises, flows in from the upper end of the air outlet pipe 21 and then flows out from the air outlet 18, so that water-vapor separation is realized, and the mutual interference between air outlet and water outlet of the water outlet nozzle 41 is avoided.

Specifically, the inner wall of the cavity 23 is provided with a water inlet 16 communicated with the water outlet pipeline 131, the top of the cavity 23 is provided with a baffle 22 facing the water inlet 16, and the baffle 22 is located between the air outlet pipe 21 and the water inlet 16 to prevent the water inlet 16 from directly spraying water to the air outlet pipe 21. In addition, the bottom end of the shielding plate 22 is suspended and lower than the height of the upper end of the air outlet pipe 21, so that water flowing through the lower part of the shielding plate 22 is limited to be sprayed to the upper end of the air outlet pipe 21, the possibility of water inlet at the upper end of the air outlet pipe 21 is further reduced, and the water-steam separation effect is favorably ensured.

Referring to fig. 9 and 13, in the present embodiment, the water outlet nozzle 41 includes an upper cover 411 and a lower cover 412, the shielding plate 22 and the water inlet 16 are disposed on the upper cover 411, and the water outlet 17 and the air outlet 18 are disposed on the lower cover 412. When the protective sleeve 42 is sleeved outside the water outlet nozzle 41, the protective sleeve 42 presses the upper cover 411 against the lower cover 412 to ensure the sealing effect of the water outlet nozzle 41. In addition, the nozzle 41 is divided into the upper cover 411 and the lower cover 412, so that the difficulty in molding the internal structure of the nozzle 41 can be reduced, and the production cost can be further reduced. In other embodiments, the spout 41 is integrally molded.

Referring to fig. 3 and 9, in the present embodiment, the water outlet nozzle 41 is provided with a buckle 413, and when the water outlet head 4 slides to extend into the sliding channel 8, the buckle 413 is clamped in the machine body 1 to limit the water outlet head 4 to be separated from the machine body 3. Compared with the buckle 413 arranged on the protective sleeve 42, the buckle 413 arranged on the water outlet nozzle 41 can more effectively limit the water outlet nozzle 41 to be separated from the machine body 3, so as to reduce the possibility of damage or leakage of the water outlet nozzle 41. In other embodiments, the latch 413 is fixed to the protective sleeve 42 to limit the protective sleeve 42 to be separated from the body 3, so as to limit the water outlet nozzle 41 to be separated from the body 3.

Example four:

referring to fig. 1, a liquid heating device includes a body 1, and a water outlet 4 disposed on the body 1.

Referring to fig. 12 and 13, a cavity 23 is provided in the water outlet head 4, a shielding plate 22 is provided in the cavity 23, and the shielding plate 22 divides the cavity 23 into a first chamber 231 and a second chamber 232. The inner wall of the first chamber 231 is provided with a water outlet 17 and an air outlet 18, the inner wall of the second chamber 232 is provided with a water inlet 16, and the shielding plate 22 is provided with a connecting port 24 for communicating the first chamber 231 with the second chamber 232.

The water outlet head 4 is in a water outlet flow path, and the water inlet 16 is used for feeding water to the second chamber 232; most of the water flowing into the second chamber 232 is blocked by the shielding plate 22, so that the kinetic energy carried by the water is reduced, and the flow speed is reduced; the second chamber 232 flows from the connection port 24 into the first chamber 231; the water in the first chamber 231 flows out from the water outlet 17.

Through the blocking of the shielding plate 22, the water flowing in from the water inlet 16 cannot directly flow into the water outlet 17, but flows into the first chamber 231 from the connecting port 24 after being buffered in the first chamber 231, and finally flows out from the water outlet 17, so that the purpose of slowing down the water outlet is realized, the possibility of splashing of the water outlet is favorably reduced, and the possibility of scalding a user when the water is discharged and heated is reduced.

In this embodiment, the connection port 24 is a notch 241 formed at the lower end of the shielding plate 22, the notch 241 enables the lower end of the shielding plate 22 to be suspended, and the height of the water inlet 16 is greater than the height of the notch 241, that is, the water inlet 16 faces the shielding plate 22. When the flow velocity of the water flow ejected from the water inlet 16 is large, the blocking plate 22 is directly impacted, and the water flow buffered by the blocking plate 22 can flow into the first chamber 231 from the notch 241, which is beneficial to reducing the water outlet of the water outlet head 4.

Specifically, the water outlet 17 is disposed on the bottom wall of the first chamber 231. Some of the water in the second chamber 232 collects by gravity at the bottom wall of the second chamber 232 and then flows through the gap 241 to the bottom wall of the first chamber 231. The water outlet 17 is formed in the bottom wall of the first chamber 231, so that water flowing to the bottom wall of the first chamber 231 can be discharged quickly, and excessive water accumulation in the first chamber 231 can be avoided. In another embodiment, referring to fig. 14, the connection opening 24 is a connection hole 242 opened on the surface of the shielding plate 22, and the connection hole 242 penetrates through the shielding plate 22 to allow the water in the second chamber 232 to flow to the first chamber 231. The water is discharged through the connection hole 242, and the water amount of the first chamber 231 needs to be higher than the height of the connection hole 242 to be able to flow to the second chamber 232, so as to achieve the purpose of slowing down the water discharge.

Referring to fig. 12 and 13, in the present embodiment, the inner wall of the first chamber 231 is opened with an air outlet 18. After the water in the second chamber 232 flows into the first chamber 231, the flow rate of the water is reduced, and the water is not easy to splash in the first chamber 231, so that the possibility of the water flowing out from the air outlet 18 is reduced.

Specifically, the air outlet 18 is located at the bottom wall of the first chamber 231, and an air outlet pipe 21 is arranged in the first chamber 231. The lower end of the air outlet pipe 21 is fixed on the bottom wall of the first chamber 231 and communicated with the air outlet 18, and the upper end of the air outlet pipe 21 extends vertically upwards. The upper end of the air outlet pipe 21 is higher than the gap 241.

When the water outlet head 4 is discharging water, the water flowing into the first chamber 231 gathers on the bottom wall of the first chamber 231 under the action of gravity and is discharged through the water outlet 17 on the bottom wall of the first chamber 231. The water outlet 17 is located at the bottom wall of the first chamber 231, but is not directly contacted with the water in the first chamber 231. The water in the first chamber 231 needs to be desert at the upper end of the air outlet pipe 21, and can be discharged from the air outlet 18, so that the difficulty of the water in the first chamber 231 flowing out from the air outlet 18 is increased, and the water and steam separation and discharge are guaranteed. In addition, since the upper end of the air outlet pipe 21 is higher than the notch 241, when the water flows from the notch 241 to the first chamber 231, the height of the water flow is lower than the height of the upper end of the air outlet pipe 21, which is beneficial to avoiding the water from entering the upper end of the air outlet pipe 21.

When the water outlet head 4 discharges hot water, the hot steam in the first chamber 231 rises and flows in from the upper end of the air outlet pipe 21, and then is discharged from the lower end of the air outlet pipe 21, namely, from the air outlet 18.

In other embodiments, the air outlet 18 is located at the top wall of the first chamber 231, and the hot steam in the first chamber 231 is directly exhausted from the air outlet 18 after rising.

Referring to fig. 1, in the embodiment, the body 1 includes a body 3 and a cover 2 covering the top of the body 3, a sliding channel 8 is formed on the body 3, and the water outlet head 4 is slidably connected in the sliding channel 8. In other embodiments, the housing 1 is integrally formed, and the water outlet 4 is fixed on the outer side wall of the housing 1.

Example five:

referring to fig. 1, the liquid heater comprises a machine body 1 and a water outlet head 4 connected to the machine body 1 in a sliding mode.

The machine body 1 comprises a shell 31 and a support member 9 fixed in the shell 31 and used for supporting the water outlet head 4, wherein the support member 9 is provided with a sliding channel 8 used for sliding the water outlet head 4.

The slide channel 8 can be formed entirely by the support 9 or can be formed jointly by the housing 31 and the support 9. Form slide channel 8 through support piece 9 for slide channel 8's length can exceed the size restriction of shell 31 thickness, not only can increase slide channel 8, can effectively support out water head 4 and slide moreover.

Referring to fig. 1 and 2, in this embodiment, a through hole 314 is opened in the side wall of the housing 31, the through hole 314 belongs to a part of the sliding channel 8, and is communicated with the sliding channel 8 on the supporting member 9 to form the completed sliding channel 8, so as to further lengthen the sliding channel 8.

In this embodiment, the housing 31 and the supporting member 9 are separate members, so that the housing 31 and the supporting member 9 are respectively formed, and the two are fixed by a fixing structure. In other embodiments, the housing 31 is integrally formed with the support 9.

In this embodiment, the supporting member 9 is a sliding sleeve 91 sleeved outside the water outlet 4, and the inner wall of the sliding sleeve 91 belongs to the sliding channel 8. The sliding sleeve 91 is wrapped outside the water outlet head 4, so that the water outlet head 4 can be protected from sliding along the sliding channel 8, and the possibility of interference on the sliding of the water outlet head 4 is reduced. In addition, the sliding sleeve 91 can limit the degree of freedom of the water outlet head 4, so that the water outlet head 4 can only slide along the length direction of the sliding sleeve, and the sliding connection of the water outlet head 4 on the support member 9 is favorably ensured.

Referring to fig. 1, 4 and 6, a bump 714 is disposed on the side wall of the water outlet head 4, and an avoiding hole 713 for avoiding the bump 714 is disposed on the sliding sleeve 91. The user can drive the water outlet head 4 to slide by driving the protrusion 714, so as to prevent the sliding sleeve 91 from being sleeved with the water outlet head 4 to affect the driving of the water outlet head 4.

The actuation of the cam 714 may be manual by the user or may be by the actuating member 14. In this embodiment, the driving member 14 is disposed inside the housing 31, and the driving member 14 drives the protrusion 714 to drive the water outlet head 4 to slide in the sliding sleeve 91.

In this embodiment, a bracket 311 is fixed in the housing 31, the driving element 14 is a spring 141 abutting against the bracket 311, and an end of the spring 141 departing from the bracket 311 abuts against the protrusion 714. The spring 141 is always in a compressed state to apply a force to the bump 714 towards the outside of the machine body 1 to drive the water outlet head 4 towards the outside of the machine body 1.

Specifically, the protrusion 714 is provided with an installation groove for inserting the end of the spring 141, so as to limit the end of the spring 141 to slide on the protrusion 714; the support 311 is fixed with a support rib, and the end of the spring 141 departing from the bump 714 is sleeved outside the support rib to limit the sliding of the end of the spring 141 on the support 311. In other embodiments, the driver 14 may also be a cylinder.

In this embodiment, the housing 31 has a water outlet pipe 131 connected to the water outlet head 4, the protrusion 714 extends along the length direction of the water outlet head 4 and protrudes from the end of the water outlet head 4, and the two protrusions 714 are integrally formed on two sides of the water outlet head 4. The water outlet pipe 131 extends between the two bumps 714, and the water outlet pipe 131 is communicated with the end of the water outlet head 4. The connection between the water outlet pipe 131 and the end of the water outlet head 4 is located between the two bumps 714, and the two bumps 714 can protect the connection between the water outlet pipe 131 and the water outlet head 4 from being interfered by other components, which is beneficial to ensuring the reliability of the communication between the water outlet pipe 131 and the water outlet head 4. In other embodiments, there are more than three bosses 20, and the cup boss 20 surrounds the middle of the connection between the outlet pipe 131 and the end of the outlet head 4.

Specifically, the two ends of the sliding sleeve 91 are communicated, and when the water outlet head 4 is in sliding connection with the sliding channel 8, the water outlet head 4 can extend out of the end of the sliding sleeve 91, so that the end of the sliding sleeve 91 is prevented from limiting the sliding of the water outlet head 4, and the sliding sleeve 91 is favorable for ensuring that the water outlet head 4 has enough sliding travel. The water outlet head 4 can be inserted from one end of the sliding sleeve 91 and then extend from the other end of the sliding sleeve 91. In other embodiments, the sliding sleeve 91 is only through at one end, and the water outlet head 4 can only be inserted and extended from the same end.

Referring to fig. 4, in the present embodiment, the inner wall of the housing 31 is provided with a support frame 312 for fixing the support member 9, and the support member 9 is not only fixed to the support frame 312, but also fixed to the inner wall of the housing 31. In other embodiments, the support 9 may be fixed only with the support frame 312; alternatively, the support 9 is fixed only to the inner wall of the housing 31.

In this embodiment, the supporting member 9 is fixed on the supporting frame 312 by a fastener, which is a screw or a pin. The inner wall of the shell 31 is provided with a clamping rib 313, and the clamping rib 313 is clamped with the end part of the support part 9 so as to fix the support part 9 on the inner wall of the shell 31. After the support member 9 and the support frame 312 are fixed to the support member 9 and the clamping rib 313, when a user installs the support member 9, the support member 9 is firstly clamped to the clamping rib 313, so as to adjust and determine the relative position of the support member 9 in the housing 31; the supporting member 9 is then fixed to the supporting frame 312 by fasteners to improve the stability of the fixing of the supporting member 9.

In other embodiments, referring to fig. 4 and 5, the support 9 comprises at least one of a first member 92 and a second member 93. The first member 92 and the second member 93 are both plate-shaped, the first member 92 is fixed in the housing 31, and the top surface of the first member 92 belongs to the slide passage 8. The second part 93 covers the top surface of the water outlet head 4, the bottom surface of the second part 93 belongs to the sliding channel 8, the second part 93 is provided with a sliding groove along the length direction, and the water outlet head 4 is connected in the sliding groove in a sliding manner so as to limit the water outlet head 4 to be separated from the support piece 9, thereby realizing the sliding of the water outlet head 4.

Example six:

referring to fig. 15, the liquid heater comprises a machine body 1 and a water outlet head 4 arranged on the machine body 1.

The machine body 1 is provided with a sliding channel 8 and an induction part 10, and the sliding channel 8 is used for the sliding connection of the water supply head 4. When the water outlet head 4 is accommodated in the machine body 1, i.e. when the water outlet head 4 moves to a designated position in the sliding channel 8, the water outlet head 4 triggers the sensing member 10 to limit the water outlet of the water outlet head 4. In this embodiment, the water outlet head 4 can extend out of the sliding channel 8 and protrude out of the machine body 1. In other embodiments, a limiting block for limiting the water outlet head 4 to slide out of the sliding channel 8 is arranged in the sliding channel 8, so that the water outlet head 4 can only slide in the machine body 1.

Even if the water outlet head 4 is not closed, the water outlet head 4 retracted into the machine body 1 can be ensured to stop water outlet by triggering the induction piece 10; this kind of structure not only can reduce the water waste, can avoid intaking in the organism 1 moreover, and then avoids leaking into the water in the organism 1 and arouses power short circuit and components and parts erosion, is favorable to promoting the reliability of product.

In this embodiment, the machine body 1 is provided with a water supply part 13, and the water supply part 13 is respectively communicated with the water outlet head 4 and a water source. The machine body 1 is provided with a circuit board 12 for receiving the trigger signal, the machine body 1 is provided with a circuit board 12 for receiving the trigger signal of the induction part 10, and when the water outlet head 4 triggers the induction part 10, the circuit board 12 controls the water supply part 13 to stop working. The sensor 10 is electronic and controls the operation of the water supply unit 13 through the circuit board 12. In other embodiments, the sensing element 10 is mechanical, the sensing element 10 is a water valve, and the water outlet head 4 moves to drive the water valve to close, so that the water outlet head 4 stops discharging water.

In this embodiment, the water supply unit 13 includes a water outlet pipe 131, a water pump 132 disposed on the water outlet pipe 131, and a switch valve 133 disposed on the water outlet pipe 131, and the water outlet pipe 131 is respectively communicated with the water outlet head 4 and the water source. When the water outlet head 4 triggers the sensing member 10, the electric control board controls the water pump 132 to stop working, and meanwhile, the circuit board 12 controls the switch valve 133 to close, so as to further limit the water outlet of the water outlet head 4, which is beneficial to ensuring that the water outlet head 4 retracted into the machine body 1 does not discharge water. The water pump 132 stops working and the water outlet pipe 131 has insufficient water pressure to transport water to the water outlet head 4; the switch valve 133 is closed, the water outlet pipeline 131 is directly cut off, and the water outlet head 4 cannot be communicated with a water source, so that the water outlet of the water outlet head 4 is limited. In addition, the water pump 132 stops working when the boiling water valve is closed, so that the leakage of the switch valve 133 caused by the water pressure generated by the water pump 132 can be effectively avoided, and the effectiveness of limiting the water outlet by the switch valve 133 is ensured.

In other embodiments, the circuit board 12 limits the water output from the water outlet head 4 by only controlling the water pump 132 to stop; alternatively, the circuit board 12 limits the water output from the water outlet head 4 by only controlling the on-off valve 133 to close.

In this embodiment, the sensing member 10 is a first sensor 101 for contact sensing the water outlet head 4. The water outlet head 4 is contacted with or separated from the first sensor 101 through sliding so as to realize the triggering or non-triggering of the first sensor 101.

In this embodiment, the first sensor 101 is in contact with the water outlet head 4 to trigger. When the water outlet head 4 slides to the outside of the protruding machine body 1, the water outlet head 4 does not contact the first sensor 101, and the first sensor 101 is not triggered; when the water outlet head 4 moves to be received in the machine body 1, the water outlet head 4 contacts the first sensor 101, and the first sensor 101 is triggered to limit the water outlet of the water outlet head 4 received in the machine body 1.

The triggering of the first sensor 101 is realized by the fact that the water outlet head 4 contacts the first sensor 101, so that the first sensor 101 is triggered only when the water outlet head 4 moves to the first sensor 101, and the phenomenon that the water outlet head 4 stops water due to the fact that a user carelessly pushes the water outlet head 4 inwards is avoided.

Specifically, a bracket 311 is arranged in the machine body 1, the first sensor 101 is mounted on the bracket 311, and when the water outlet head 4 slides into the machine body 1, the water outlet head 4 moves to the bracket 311 and contacts the first sensor 101, so as to trigger the first sensor 101. In other embodiments, the first sensor 101 may also be installed in the slide channel 8, so that the water outlet head 4 contacts the first sensor 101. The first sensor 101 is installed on the bracket 311, and the vibration generated by the sliding of the water outlet head 4 in the sliding channel 8 is not easy to be transmitted to the bracket 311, so as to avoid the vibration from causing the internal conduction and the false triggering of the contact sensor.

In other embodiments, referring to fig. 16, the water outlet head 4 is activated by being separated from the first sensor 101 to effect activation of the first sensor 101. When the water outlet head 4 slides to the outside of the protruding machine body 1, the water outlet head 4 contacts the first sensor 101, and the first sensor 101 is not triggered; when the water outlet head 4 slides into the housing 1, the water outlet head 4 is not in contact with the first sensor 101, and the first sensor 101 triggers to stop the water outlet of the water outlet head 4. The water outlet head 4 is not in contact with the first sensor 101, so that the first sensor 101 is triggered, when the water outlet head 4 is detached from the machine body 1, the water outlet head 4 is separated from the machine body 1 and is not in contact with the first sensor 101, the first sensor 101 is triggered to limit water outlet of the water outlet head 4, and the water outlet head 4 is prevented from spraying water when the water outlet head 4 is detached.

Specifically, the first sensor 101 is installed on the inner wall of the sliding channel 8 and is used for contacting the side wall of the water outlet head 4, and the side wall of the water outlet head 4 is provided with an avoiding groove 27. When the water outlet head 4 protrudes out of the machine body 1, the first sensor 101 abuts against the side wall of the water outlet head 4, and the first sensor 101 is not triggered; when the water outlet head 4 is received in the machine body 1, the first sensor 101 is inserted into the avoiding groove 27 and does not contact with the water outlet head 4, and the first sensor 101 is triggered to stop the water outlet head 4 from discharging water.

When the liquid is heated and collided, the water outlet head 4 may be pulled out from the sliding channel 8, and the water outlet head 4 is separated from the first sensor 101, so that the water outlet head 4 stops discharging water, and a user can conveniently install the water outlet head 4 back into the sliding channel 8.

In other embodiments, referring to fig. 17, the sensing member 10 is a second sensor 102 for electromagnetically sensing the water outlet head 4, the water outlet head 4 has a magnetic member thereon, and the second sensor 102 is moved by the water outlet head 4 to activate or deactivate the second sensor 102. The water outlet head 4 does not need to be in direct contact with the second sensor 102 to trigger the second sensor 102, so that collision and abrasion of the second sensor 102 and the water outlet head 4 are avoided, and the service life of the second sensor 102 is prolonged.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. A liquid heater is characterized in that: the water outlet device comprises a machine body and a sliding channel arranged on the machine body, wherein a water outlet head is connected in the sliding channel in a sliding mode, the water outlet head slides along the sliding channel to be provided with a first position and a second position, and a limiting structure used for limiting the sliding of the water outlet head is arranged on a sliding stroke between the first position and the second position.

2. A liquid heater as claimed in claim 1, wherein: the limiting structure comprises a first limiting structure used for limiting the water outlet head to be separated from the machine body when the water outlet head slides to the first position.

3. A liquid heater as claimed in claim 2, wherein: first limit structure is including establishing the protruding muscle at the hydrooutlet lateral wall, establishing the gliding recess of being used for supplying protruding muscle at the passageway inner wall that slides, when the hydrooutlet slides to the primary importance, protruding muscle with the interior cell wall butt of recess tip to the restriction hydrooutlet organism that drops.

4. A liquid heater as claimed in claim 2, wherein: the organism has the cover that slides outside the hydrohead of cover, first limit structure including establish the lug on the hydrohead, establish and be used for dodging the hole of dodging of lug on the cover that slides, when the hydrohead slides to first position, the lug with dodge the inner hole wall butt of hole one end to the restriction hydrohead breaks away from the organism.

5. A liquid heater as claimed in claim 1 or 2, wherein: the limiting structure comprises a second limiting structure used for limiting the water outlet head to move towards the inside of the machine body when the water outlet head slides to the second position.

6. A liquid heater as claimed in claim 5, wherein: the second limit structure comprises a clamping piece fixed on the machine body, and when the water outlet head slides to the second position, the clamping piece is clamped with the water outlet head to limit the water outlet head to slide.

7. A liquid heater as claimed in claim 1, wherein: and the machine body is provided with a driving piece for driving the water outlet head to slide along the sliding channel.

8. A liquid heater as claimed in claim 7, wherein: the driving piece is a spring, one end of the spring is abutted against the inside of the machine body, and the other end of the spring is abutted against the water outlet head.

9. A liquid heater as claimed in claim 1, wherein: the organism includes the fuselage, covers the cover that closes at the fuselage, the passageway that slides is established on the fuselage.

10. A liquid heater as claimed in claim 9, wherein: the fuselage includes the shell, fixes the cover that slides at the shell inner wall, the through-hole is worn to be equipped with by the shell lateral wall, through-hole, the cover hole intercommunication that slides to form the passageway that slides.