CN219353638U - Electric thermos bottle - Google Patents

Abstract

The utility model relates to the field of small household appliances, in particular to an electric hot water bottle. The kettle comprises a kettle body and a kettle cover, wherein a lock catch and a button switch are arranged on the kettle cover, the kettle cover comprises an upper cover and a lower cover, a button cavity for installing the button switch is formed by downwards sinking the bottom surface of the lower cover, a first sliding cavity and a second sliding cavity which are sequentially arranged from inside to outside are further formed in the bottom surface of the lower cover, the peripheral wall of the button cavity outwards extends to form the first sliding cavity, the bottom surface of the second sliding cavity is higher than the bottom surface of the first sliding cavity, the lock catch comprises a first sliding body contacted with the button switch and a second sliding body outwards extending, the first sliding body is arranged in the first sliding cavity in a sliding mode, and the second sliding body is arranged in the second sliding cavity in a sliding mode. The utility model improves the cover opening pressing structure, and designs a plurality of sliding cavities to be matched with the lock catches, thereby improving the position precision and the movement stability of the lock catches and enabling the kettle cover to accurately lock the cover or open the cover.

Description

Electric thermos bottle

Technical Field

The utility model relates to the field of small household appliances, in particular to an electric hot water bottle.

Background

There are kettle lids of electric hot water bottles on the market at present that adopt a lid-opening pressing structure to open the lid, wherein a comparatively common lid-opening pressing structure comprises a button switch, a lock catch, a reset spring and the like. The button switch comprises a cover opening button and a button column, when the cover opening button is pressed down, the cover opening button pushes the lock catch to extend outwards to be clamped with the kettle body so that the kettle cover is in a locking state, at the moment, the kettle cover cannot be opened, when the cover opening button is sprung up, the reset spring enables the lock catch to retract inwards, and after the lock catch resets, the clamping state of the lock catch and the kettle body is released, and at the moment, the kettle cover can be opened.

The lock catch moves in a horizontal linear motion, and can extend or retract under the action of the cover opening button, so that the lock catch is clamped with the kettle body or separated from the kettle body.

For example, chinese patent grant publication number CN204218706U, entitled "kettle and kettle lid thereof", discloses a kettle lid structure, the kettle lid including an upper lid, a lower lid, a button assembly, a rotation lever assembly, a pushing block, a sliding lever assembly, and a pushing block spring; the upper cover and the lower cover are buckled to form a shell of the kettle cover, and the rotating rod assembly, the pushing block, the sliding rod assembly and the pushing block spring are arranged in the shell; the button column of the button assembly is arranged in the through hole in a penetrating way and sleeved on the periphery of the rotating rod, a first tooth is arranged on the periphery of the bottom end of the button column, a guide groove is arranged on the inner surface of the wall of the through hole forming the through hole, and a second tooth matched with the first tooth and the guide groove to switch the openable cover state and the closing cover state of the kettle cover is arranged on the periphery of the bottom end of the rotating rod; the pushing block is arranged below the rotating rod, the two sliding rod assemblies are respectively arranged at two sides of the pushing block, and the pushing block is in sliding fit with the sliding rod assemblies so as to drive the sliding rods of the sliding rod assemblies to extend or retract towards two sides when the cover opening and closing state is switched; the pushing block spring is arranged between the lower surface of the pushing block and the lower cover. The push block (latch) of this patent can be extended or retracted to both sides by the push button assembly (door button).

For example, chinese patent publication No. CN209018467U, entitled "a removable upper cover assembly", discloses an upper cover assembly, which includes an upper cover body, at least two movable clamping blocks movably disposed on a side surface of the upper cover body, and a main body for clamping a product, wherein the at least two movable clamping blocks are disposed in opposite directions; the key switch is arranged on the upper cover body and is used for driving the movable clamping block to extend out of the side face of the upper cover body and locking the movable clamping block to be clamped with the main body of the product, or unlocking the movable clamping block to enable the movable clamping block to be contained in the upper cover body and be completely separated from the main body of the product. The button, the movable clamping block and the upper cover body are respectively and correspondingly provided with a first elastic piece and a second elastic piece for driving the button, the movable clamping block and the upper cover body to reset. In this patent, the movable latch (lock) can be extended or retracted to both sides under the action of a button (cover opening button).

Because the locking cover or the uncovering of the kettle cover depends on the movement position of the lock catch, the movement frequency of the lock catch is also more frequent, so the requirements on the position precision and the movement stability of the lock catch are very high.

Disclosure of Invention

Aiming at the defects that the position precision and the movement stability of a lock catch are difficult to ensure due to the fact that the lock catch is easy to move in place and the kettle cover is difficult to accurately lock the cover or open the cover, the utility model aims to provide the electric hot water bottle, the improved design of the open cover pressing structure is provided, and a plurality of sliding cavities are designed to be matched with the lock catch, so that the position precision and the movement stability of the lock catch are improved, and the kettle cover can accurately lock the cover or open the cover.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an electric hot water bottle, includes the kettle body and covers the kettle lid of establishing on the kettle body, is equipped with hasp, button switch on the kettle lid, and the hasp has the locked position that stretches out outside the kettle lid, the unblock position that withdraws in to the kettle lid under button switch's effect, the kettle lid includes upper cover and lower cover, and the bottom surface undercut of lower cover forms the button chamber that is used for installing button switch, and the bottom surface of lower cover still is equipped with first smooth chamber, the second smooth chamber that from interior to exterior arranges in proper order, and the button chamber is located the intermediate position of lower cover, and the wall in the periphery of button chamber outwards extends and forms first smooth chamber, and the bottom surface of second smooth chamber is higher than the bottom surface of first smooth chamber, and the hasp includes the first sliding body and the second sliding body of outwards extending that contact with button switch, and first sliding body slides and sets up in first smooth chamber, and second sliding body slides and sets up in the second smooth chamber.

In this technical scheme, the hasp has two working positions under the action of button switch: a locking position extending outwards from the kettle cover and an unlocking position retracting inwards from the kettle cover, wherein when the lock catch is in an extending state, the lock catch is clamped with a structure on the kettle body, and the kettle cover cannot be opened; when the lock catch is in a retracted state, the lock catch is separated from the structure on the kettle body, and the kettle cover can be opened. The lock catch is provided with a first sliding body and a second sliding body, a first sliding cavity and a second sliding cavity are respectively arranged on the lower cover and are matched with the first sliding body and the second sliding body, the sliding bodies respectively slide in the corresponding sliding cavities, the sliding cavities themselves have a limiting effect on the sliding bodies, the sliding matching of the sliding bodies and the sliding cavities improves the position precision and the movement stability of the lock catch, and meanwhile, the junction of the second sliding cavity and the first sliding cavity forms a step, so that the first sliding body can be limited, the extending length of the lock catch is limited, the position precision of the lock catch is further improved, the situation that the lock catch cannot be retracted due to the extending overlong of the lock catch is prevented, and the lock cover can be accurately locked or opened.

The utility model is further arranged to: the lower cover is provided with a convex block, the second sliding body is provided with a sliding groove, the convex block is in sliding fit with the sliding groove, the top end of the convex block is provided with a transversely extending clamping block, and the second sliding body is limited between the clamping block and the bottom surface of the second sliding cavity in the up-down direction. Through this setting, the lug embedding is in the spout, and spacing effect between the two guarantees that the second slider is along same straight line reciprocating motion all the time, and the fixture block is located the top of second slider simultaneously, carries out spacingly to the second slider in upper and lower direction.

The utility model is further arranged to: the side wall of the chute is provided with a clamping strip extending along the sliding direction of the lock catch, the length of the clamping strip is smaller than that of the chute, and the clamping strip is positioned between the clamping block and the bottom surface of the second sliding cavity. Through this setting, in order to avoid producing the interference when spout and lug installation, the width of spout will be greater than the width of lug, and the lug can be gone into to the one end of spout like this, then translation second slider will block between the bottom surface in fixture block and second sliding chamber in the strip for the fixture block plays the upper and lower limiting displacement to the second slider.

The utility model is further arranged to: the lower cover is provided with a reset spring for retracting the lock catch into the kettle cover, the side wall of the chute is provided with a convex column, and the inner end and the outer end of the reset spring are respectively arranged on the convex column and the convex block. Through this setting, reset spring's elasticity makes the hasp inwards retract, and reset spring's installation is in the spout simultaneously, space between make full use of lug and the projection, reasonable layout.

The utility model is further arranged to: the bottom surface of the first sliding cavity is flush with the bottom surface of the button cavity or the bottom surface of the first sliding cavity is higher than the bottom surface of the button cavity. Through this setting, the bottom surface in first sliding chamber is not less than the bottom surface in button chamber, avoids first sliding body to produce the interference with the button chamber when sliding, also can utilize the peripheral space in button chamber like this when sliding of first sliding body, is convenient for reduce spatial layout, reduces the product volume.

The utility model is further arranged to: the bottom surface of the first sliding cavity is provided with a first guide rail extending along the sliding direction of the lock catch, and the bottom of the first sliding body is arranged on the first guide rail in a sliding manner. Through this setting, first slider and first guide rail sliding fit guarantee that first slider is along same straight line reciprocating motion all the time.

The utility model is further arranged to: the bottom surface of the second sliding cavity is provided with a second guide rail extending along the sliding direction of the lock catch, and the bottom of the second sliding body is arranged on the second guide rail in a sliding manner. Through this setting, second slider and second guide rail sliding fit guarantee that the second slider is along same straight line reciprocating motion all the time.

The utility model is further arranged to: the button switch comprises a cover opening button and a button column, wherein the button column is arranged in the button cavity, the cover opening button can be arranged on the button column in an up-down movable mode, the first sliding body is provided with a driving surface which is inclined inwards from top to bottom, and the cover opening button is provided with a convex rib which abuts against the driving surface. Through this setting, the relative button post of uncapping button can be pushed down or upwards pop up, because the driving surface is the inclined plane design, when uncapping the button pushes down, and protruding muscle promotes the hasp outwards and stretches out, and when uncapping the button and pop up, the hasp inwards withdraws.

The utility model is further arranged to: the novel multifunctional bottle cap is characterized in that a central shaft extending downwards and a first tooth column are arranged on the cap opening button, a circle of wavy helical teeth are arranged on the lower end face of the first tooth column, a rotating piece is movably sleeved on the central shaft, a circle of rotary teeth are arranged on the rotating piece, the upper end faces of the rotary teeth are obliquely arranged, a first spring is arranged between the cap opening button and the rotating piece, the first spring generates upward elastic force to the rotating piece, a second spring is arranged between the cap opening button and the bottle cap, the second spring generates upward elastic force to the cap opening button, a circle of combined teeth are arranged on the lower end face of the button column, tooth grooves are formed between adjacent combined teeth, the combined teeth comprise first helical teeth and second helical teeth which are distributed continuously, and the wavy helical teeth push the rotating piece to move so that the upper end of the rotary teeth is clamped between the first helical teeth and the second helical teeth or clamped in the tooth grooves when the cap opening button is pressed.

Through this setting, when the button of uncapping is in the state of pushing down, the up end card of tooth is between first helical tooth and second helical tooth, the tooth point of wave helical tooth is located the tooth up end just above the tooth of uncapping again this moment, the button of uncapping has a little section stroke, the tooth point of wave helical tooth withstands the tooth up end down motion of tooth, when the tooth point of wave helical tooth is less than the lowest department of second helical tooth, under the effect of first spring, the up end of tooth will be along the inclined plane upward motion of wave helical tooth, contact the second helical tooth in the upward motion process of tooth, unclamp the button this moment, under the effect of second spring, the up end of tooth will be along the upward motion of second helical tooth to the tooth groove between the combination tooth, realize the migration process of tooth to first helical tooth from this, until the button is in the state of upspring, the hasp is in the state of withdrawing this moment, the cover can be opened.

When the cover opening button is in an upward flicking state, the upper end face of the rotary tooth is clamped in the tooth grooves between the combined teeth, at the moment, the tooth tip of the wavy helical tooth is positioned right above the upper end face of the rotary tooth, the cover opening button is pressed, the tooth tip of the wavy helical tooth props against the upper end face of the rotary tooth to move upwards, when the upper end face of the rotary tooth is lower than the lowest position of the first helical tooth, under the action of the first spring, the upper end face of the rotary tooth moves upwards along the inclined face of the wavy helical tooth, and contacts the first helical tooth in the upward movement process, at the moment, the cover opening button is released, and under the action of the second spring, the upper end face of the rotary tooth moves upwards along the first helical tooth to between the first helical tooth and is clamped at the position, so that the migration process of the upper end face of the rotary tooth from the tooth groove to the first helical tooth is realized until the cover opening button is in a downward pressing state.

Therefore, the rotary teeth, the combined teeth and the wavy helical teeth realize the up-and-down reciprocating motion of the cover opening button and the telescopic reciprocating motion of the lock catch through the up-and-down motion of the rotation part under the action of elastic force, and the cover opening button is simple and efficient.

The utility model is further arranged to: the number of the rotary teeth is N, the number of the combined teeth is N, the number of the wavy helical teeth is 2N, N is more than or equal to 3 and less than or equal to 7, and the inclined planes of the rotary teeth, the first helical teeth, the second helical teeth and the wavy helical teeth are the same in inclination angle alpha, and alpha is more than or equal to 30 degrees and less than or equal to 60 degrees. Through this setting, for guaranteeing simple high-efficient of mechanism, N should not be greater than 7, simultaneously in order to guarantee the smooth operation of mechanism, N should also not be less than 3, and the angle of inclination of this extra helical tooth, first helical tooth, second helical tooth, wave helical tooth is all the same, guarantees the stability of helical tooth motion, and its up end can paste first helical tooth or second helical tooth or wave helical tooth when the helical tooth moves.

The utility model has the advantages that: the lock catch is provided with a first sliding body and a second sliding body, a first sliding cavity and a second sliding cavity are respectively arranged on the lower cover and are matched with the first sliding body and the second sliding body, the sliding bodies respectively slide in the corresponding sliding cavities, the sliding cavities themselves have a limiting effect on the sliding bodies, the sliding cavities and the sliding cavities are matched in a sliding manner, the position precision and the movement stability of the lock catch are improved, meanwhile, the second sliding cavity and the first sliding cavity form a step at the junction, so that the first sliding body can be limited, the extending length of the lock catch is limited, the position precision of the lock catch is further improved, the condition that the lock catch cannot be retracted due to the extending overlong of the lock catch is prevented, and the lock cover can be accurately locked or opened.

Drawings

FIG. 1 is a fragmentary view of a kettle lid in accordance with one embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a kettle lid in one embodiment of the utility model;

FIG. 3 is a schematic front view of a lower cover according to an embodiment of the present utility model;

FIG. 4 is a schematic view showing the back structure of the lower cover according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a latch according to an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of a lower cover in one embodiment of the utility model;

FIG. 7 is a schematic view of a rotary member according to an embodiment of the present utility model;

FIG. 8 is a schematic view of the structure of the door button according to an embodiment of the present utility model;

FIG. 9 is a schematic diagram of the structure of the pop-up button according to an embodiment of the present utility model;

fig. 10 is a schematic view of a structure of the cover release button according to an embodiment of the present utility model.

Reference numerals: kettle lid 100, upper lid 200, lower lid 300, button cavity 301, first slide cavity 302, second slide cavity 303, bump 304, latch 305, return spring 306, first rail 307, second rail 308, latch 400, first slider 401, second slider 402, chute 403, boss 404, latch 405, drive surface 406, button switch 500, lid button 501, button post 502, bead 503, center shaft 504, first tooth post 505, wave bevel 506, rotator 507, rotary tooth 508, screw 509, first spring 510, second spring 511, combination tooth 512, tooth slot 513, first bevel 514, second bevel 515, bottom cover 600, and seal ring 700.

Detailed Description

In the description of the present embodiment, it should be noted that, if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", and the like are presented, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the indicated apparatus or element must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.

The utility model is further described below with reference to the drawings and specific examples.

Referring to fig. 1 to 10, an electric thermos bottle in an embodiment of the present utility model includes a bottle body and a bottle cap 100 with a cap on the bottle body, wherein the bottle cap 100 is provided with a lock catch 400 and a button switch 500, the lock catch 400 has a locking position protruding outwards of the bottle cap 100 and an unlocking position retracting inwards of the bottle cap 100 under the action of the button switch 500, the bottle cap 100 includes an upper cap 200 and a lower cap 300, the bottom surface of the lower cap 300 is recessed downwards to form a button cavity 301 for installing the button switch 500, the bottom surface of the lower cap 300 is further provided with a first sliding cavity 302 and a second sliding cavity 303 which are sequentially arranged from inside to outside, the button cavity 301 is located at the middle position of the lower cap 300, the peripheral wall of the button cavity 301 extends outwards to form a first sliding cavity 302, the bottom surface of the second sliding cavity 303 is higher than the bottom surface of the first sliding cavity 302, the lock catch 400 includes a first sliding body 401 contacting the button switch 500 and a second sliding body 402 extending outwards, the first sliding body 401 is slidably arranged in the first sliding cavity 302, and the second sliding body 402 is slidably arranged in the second sliding cavity 303.

In this embodiment, the latch 400 has two working positions under the action of the push-button switch 500: a locking position extending outwards of the kettle cover 100 and an unlocking position retracting inwards of the kettle cover 100, when the lock catch 400 is in an extending state, the lock catch 400 is clamped with a structure on the kettle body, and the kettle cover 100 cannot be opened; when the lock catch 400 is in a retracted state, the lock catch 400 is separated from the structure on the kettle body, and the kettle cover 100 can be opened.

Referring to fig. 3 and 5, the lock catch 400 has two parts, namely a first sliding body 401 and a second sliding body 402, the lower cover 300 is respectively provided with a first sliding cavity 302, a second sliding cavity 303 and the first sliding body 401 and the second sliding body 402, the sliding bodies slide in the corresponding sliding cavities respectively, the sliding cavities themselves have a limiting function on the sliding bodies, the sliding fit of the two sliding bodies and the sliding cavities improves the position precision and the movement stability of the lock catch 400, and meanwhile, the juncture of the second sliding cavity 303 and the first sliding cavity 302 forms a step, so that the first sliding body 401 can be limited, the extension length of the lock catch 400 is limited, the position precision of the lock catch 400 is further improved, the situation that the lock catch 400 cannot retract due to overlong extension is prevented, and the kettle cover 100 can accurately perform the locking or uncovering actions.

The lower cover 300 is provided with a bump 304, the second sliding body 402 is provided with a chute 403, the bump 304 is in sliding fit with the chute 403, the top end of the bump 304 is provided with a clamping block 305 extending transversely, and the second sliding body 402 is limited between the clamping block 305 and the bottom surface of the second sliding cavity 303 in the up-down direction. The bump 304 is embedded in the chute 403, and the limiting function between the bump and the chute ensures that the second sliding body 402 always reciprocates along the same straight line, and meanwhile, the clamping block 305 is located above the second sliding body 402, so as to limit the second sliding body 402 in the up-down direction.

The side wall of the chute 403 is provided with a clamping strip 405 extending along the sliding direction of the lock catch 400, the length of the clamping strip 405 is smaller than that of the chute 403, and the clamping strip 405 is located between the clamping block 305 and the bottom surface of the second sliding cavity 303. In order to avoid interference between the sliding groove 403 and the protruding block 304 during installation, the width of the sliding groove 403 is larger than that of the protruding block 304, so that one end of the sliding groove 403 can be clamped into the protruding block 304, and then the second sliding body 402 is translated to place the clamping strip 405 between the clamping block 305 and the bottom surface of the second sliding cavity 303, so that the clamping block 305 plays an upper and lower limiting role on the second sliding body 402.

Referring to fig. 1, 2, 3 and 5, a return spring 306 for retracting the lock catch 400 into the pot lid 100 is provided on the lower lid 300, a protrusion 404 is provided on a side wall of the chute 403, and both inner and outer ends of the return spring 306 are respectively mounted on the protrusion 404 and the protrusion 304. The elastic force of the return spring 306 causes the lock catch 400 to retract inwards, and meanwhile, the return spring 306 is arranged in the sliding groove 403, so that the space between the protruding block 304 and the protruding column 404 is fully utilized, and the reasonable layout is realized.

The bottom surface of the first slide chamber 302 is flush with the bottom surface of the button chamber 301 or the bottom surface of the first slide chamber 302 is higher than the bottom surface of the button chamber 301. The bottom surface of the first sliding cavity 302 is not lower than the bottom surface of the button cavity 301, so that interference with the button cavity 301 when the first sliding body 401 slides is avoided, and therefore, the peripheral space of the button cavity 301 can be utilized when the first sliding body 401 slides, the space layout is reduced, and the product volume is reduced.

Referring to fig. 3, a first guide rail 307 extending in a sliding direction of the locker 400 is provided on a bottom surface of the first sliding chamber 302, and a bottom portion of the first sliding body 401 is slidably disposed on the first guide rail 307. The first sliding body 401 is in sliding fit with the first guide rail 307, so that the first sliding body 401 can always reciprocate along the same straight line.

Referring to fig. 3, a second guide rail 308 extending in a sliding direction of the locker 400 is provided on a bottom surface of the second sliding chamber 303, and a bottom portion of the second sliding body 402 is slidably disposed on the second guide rail 308. The second sliding body 402 is in sliding fit with the second guide rail 308, so that the second sliding body 402 can always reciprocate along the same straight line.

Referring to fig. 1, in other embodiments, the pot lid 100 further includes a bottom cover 600, the bottom cover 600 is made of a hardware material, and the bottom cover 600 is in sealing engagement with the bottom cover 300 through a sealing ring 700.

Referring to fig. 1 to 10, in order to enable the push button switch 500 to accurately act on the latch 400, a specific structure and operation of the push button switch 500 are illustrated as follows:

the push button switch 500 includes a cover opening button 501 and a button post 502, the button post 502 is disposed in the button cavity 301, the cover opening button 501 is movably disposed on the button post 502 up and down, the first sliding body 401 has a driving surface 406 that is inclined inwards from top to bottom, and the cover opening button 501 is provided with a rib 503 that abuts against the driving surface 406. The cover release button 501 can be pushed down or sprung up against the button post 502, and because the driving surface 406 is an inclined surface, when the cover release button 501 is pushed down, the convex rib 503 pushes the lock catch 400 to extend outwards, and when the cover release button 501 is sprung up, the lock catch 400 is retracted inwards under the action of the return spring 306.

In order to enable the cover opening button 501 to be in a pressing or bouncing state stably, a central shaft 504 and a first tooth column 505 which extend downwards are arranged on the cover opening button 501, a circle of wavy inclined teeth 506 are arranged on the lower end face of the first tooth column 505, a rotating piece 507 is sleeved on the central shaft 504, the rotating piece 507 can rotate around the central shaft 504 and can move up and down along the central shaft 504, a circle of rotary teeth 508 are arranged on the rotating piece 507, the upper end face of the rotary teeth 508 is obliquely arranged, a screw 509 is driven into the central shaft 504 from bottom to top, the outer diameter of a nut is larger than the outer diameter of the central shaft 504, a first spring 510 is sleeved on the central shaft 504, the upper end and the lower end of the first spring 510 are respectively abutted against the rotating piece 507 and the nut, the first spring 510 generates upward elasticity on the rotating piece 507, a second spring 511 is arranged between the cover opening button 501 and the kettle cover 100, a circle of combined teeth 512 are arranged on the lower end face of the button column 502, tooth grooves 513 are arranged between adjacent combined teeth 512, the combined teeth 512 comprise first inclined teeth 514 and second inclined teeth 515 which are continuously distributed, and when the second button teeth 515 are pushed by the inclined teeth 508 push the inclined teeth 506 to move between the first inclined teeth 515 and the rotating teeth 513 in a pressing mode.

Referring to fig. 9, when the lid opening button 501 is in the pressed state, the upper end face of the rotary tooth 508 is clamped between the first helical tooth 514 and the second helical tooth 515, the tooth tip of the wavy helical tooth 506 is located right above the upper end face of the rotary tooth 508 at this time, the lid opening button 501 is pressed again, a small stroke is provided for the lid opening button 501, the tooth tip of the wavy helical tooth 506 pushes down against the upper end face of the rotary tooth 508 at this time, when the tooth tip of the wavy helical tooth 506 is lower than the lowest position of the second helical tooth 515, under the action of the first spring 510, the upper end face of the rotary tooth 508 moves up along the inclined face of the wavy helical tooth 506, the rotary tooth 508 contacts the second helical tooth 515 in the upward movement process, at this time, the lid opening button 501 is released, under the action of the second spring 511, the upper end face of the rotary tooth 508 moves up to the tooth groove 513 between the combined teeth 512 along the second helical tooth 515, thereby realizing the migration process of the upper end face of the rotary tooth 508 from the first helical tooth 514 to the first helical tooth 514 until the lid opening button 506 is in the sprung state, the lock catch 400 is in the retracted state, and the lid opening button 100 can be opened.

Referring to fig. 10, when the lid opening button 501 is in the spring-up state, the upper end surface of the rotary tooth 508 is clamped in the tooth groove 513 between the combined teeth 512, at this time, the tooth tip of the wavy helical tooth 506 is located right above the upper end surface of the rotary tooth 508, the lid opening button 501 is pressed, the tooth tip of the wavy helical tooth 506 moves upward against the upper end surface of the rotary tooth 508, when the upper end surface of the rotary tooth 508 is lower than the lowest position of the first helical tooth 514, under the action of the first spring 510, the upper end surface of the rotary tooth 508 moves upward along the inclined surface of the wavy helical tooth 506, and contacts the first helical tooth 514 in the upward movement process, at this time, the lid opening button 501 is released, and under the action of the second spring 511, the upper end surface of the rotary tooth 508 moves upward along the first helical tooth 514 and between the first helical tooth 514 and is clamped there, thereby realizing the migration process of the upper end surface of the rotary tooth 508 from the tooth groove 513 to the first helical tooth 514 until the lid opening button 501 is in the downward pressing state.

The number of the rotating teeth 508 is N, the number of the combined teeth 512 is N, the number of the wavy helical teeth 506 is 2N, N is not more than 7 to ensure that the mechanism is simple and efficient, N is not less than 3 to ensure that the mechanism runs smoothly, i.e. 3 is not less than or equal to N and not more than 7, n=5 is preferred in the embodiment, 5 rotating teeth 508 are arranged on the rotating member 507, the upper end face of the rotating teeth 508 is an inclined face, the lower end face is a plane, 5 combined teeth 512 are arranged on the lower end face of the button column 502, the combined teeth 512 are divided into a first helical tooth 514 and a second helical tooth 515, 10 wavy helical teeth 506 are arranged on the lower end face of the first tooth column 505, and the tooth tip of the wavy helical teeth 506 is located at the middle position of the first helical teeth 514 and the second helical teeth 515.

The inclination angles alpha of the outer rotary teeth 508, the first helical teeth 514, the second helical teeth 515 and the wavy helical teeth 506 are the same, and the alpha is more than or equal to 30 degrees and less than or equal to 60 degrees, so that the stability of the movement of the rotary teeth 508 is ensured, and the upper end face of the rotary teeth 508 can be clung to the first helical teeth 514 or the second helical teeth 515 or the wavy helical teeth 506 when the rotary teeth 508 move.

The rotary teeth 508, the combined teeth 512 and the wavy helical teeth 506 move up and down by the rotation of the rotating piece 507 under the action of elastic force, so that the up-and-down reciprocating motion of the cover opening button 501 and the telescopic reciprocating motion of the lock catch 400 are realized simply and efficiently.

Referring to fig. 1, in other embodiments, the pot lid 100 further includes a bottom cover 600, the bottom cover 600 is made of a hardware material, and the bottom cover 600 is in sealing engagement with the bottom cover 300 through a sealing ring 700.

The foregoing embodiments are provided for further explanation of the present utility model and are not to be construed as limiting the scope of the present utility model, and some insubstantial modifications and variations of the present utility model, which are within the scope of the utility model, will be suggested to those skilled in the art in light of the foregoing teachings.

Claims (10)

1. The utility model provides an electric hot water bottle, includes the kettle body and covers the kettle lid of establishing on the kettle body, is equipped with hasp, button switch on the kettle lid, and the hasp has the locked position that stretches out outside the kettle lid, the unblock position that withdraws in to the kettle lid under button switch's effect, its characterized in that: the kettle cover comprises an upper cover and a lower cover, the bottom surface of the lower cover is downwards sunken to form a button cavity for installing a button switch, the bottom surface of the lower cover is further provided with a first sliding cavity and a second sliding cavity which are sequentially arranged from inside to outside, the button cavity is located in the middle of the lower cover, the peripheral wall of the button cavity outwards extends to form a first sliding cavity, the bottom surface of the second sliding cavity is higher than the bottom surface of the first sliding cavity, the lock catch comprises a first sliding body contacted with the button switch and a second sliding body outwards extending, the first sliding body is arranged in the first sliding cavity in a sliding mode, and the second sliding body is arranged in the second sliding cavity in a sliding mode.

2. An electric hot water bottle as claimed in claim 1, wherein: the lower cover is provided with a convex block, the second sliding body is provided with a sliding groove, the convex block is in sliding fit with the sliding groove, the top end of the convex block is provided with a transversely extending clamping block, and the second sliding body is limited between the clamping block and the bottom surface of the second sliding cavity in the up-down direction.

3. An electric hot water bottle as claimed in claim 2, wherein: the side wall of the chute is provided with a clamping strip extending along the sliding direction of the lock catch, the length of the clamping strip is smaller than that of the chute, and the clamping strip is positioned between the clamping block and the bottom surface of the second sliding cavity.

4. An electric hot water bottle as claimed in claim 2, wherein: the lower cover is provided with a reset spring for retracting the lock catch into the kettle cover, the side wall of the chute is provided with a convex column, and the inner end and the outer end of the reset spring are respectively arranged on the convex column and the convex block.

5. An electric hot water bottle as claimed in claim 1, wherein: the bottom surface of the first sliding cavity is flush with the bottom surface of the button cavity or the bottom surface of the first sliding cavity is higher than the bottom surface of the button cavity.

6. An electric hot water bottle as claimed in claim 1, wherein: the bottom surface of the first sliding cavity is provided with a first guide rail extending along the sliding direction of the lock catch, and the bottom of the first sliding body is arranged on the first guide rail in a sliding manner.

7. An electric hot water bottle as claimed in claim 1, wherein: the bottom surface of the second sliding cavity is provided with a second guide rail extending along the sliding direction of the lock catch, and the bottom of the second sliding body is arranged on the second guide rail in a sliding manner.

8. An electric hot water bottle according to any one of claims 1 to 7, characterized in that: the button switch comprises a cover opening button and a button column, wherein the button column is arranged in the button cavity, the cover opening button can be arranged on the button column in an up-down movable mode, the first sliding body is provided with a driving surface which is inclined inwards from top to bottom, and the cover opening button is provided with a convex rib which abuts against the driving surface.

9. An electric hot water bottle as claimed in claim 8, wherein: the novel multifunctional bottle cap is characterized in that a central shaft extending downwards and a first tooth column are arranged on the cap opening button, a circle of wavy helical teeth are arranged on the lower end face of the first tooth column, a rotating piece is movably sleeved on the central shaft, a circle of rotary teeth are arranged on the rotating piece, the upper end faces of the rotary teeth are obliquely arranged, a first spring is arranged between the cap opening button and the rotating piece, the first spring generates upward elastic force to the rotating piece, a second spring is arranged between the cap opening button and the bottle cap, the second spring generates upward elastic force to the cap opening button, a circle of combined teeth are arranged on the lower end face of the button column, tooth grooves are formed between adjacent combined teeth, the combined teeth comprise first helical teeth and second helical teeth which are distributed continuously, and the wavy helical teeth push the rotating piece to move so that the upper end of the rotary teeth is clamped between the first helical teeth and the second helical teeth or clamped in the tooth grooves when the cap opening button is pressed.

10. An electric hot water bottle as claimed in claim 9, wherein: the number of the rotary teeth is N, the number of the combined teeth is N, the number of the wavy helical teeth is 2N, N is more than or equal to 3 and less than or equal to 7, and the inclined planes of the rotary teeth, the first helical teeth, the second helical teeth and the wavy helical teeth are the same in inclination angle alpha, and alpha is more than or equal to 30 degrees and less than or equal to 60 degrees.