CN111150106A

CN111150106A - Locking unit and electric heating suction device

Info

Publication number: CN111150106A
Application number: CN202010019676.0A
Authority: CN
Inventors: 朱晓春
Original assignee: Shenzhen Kangte Ke Technology Co Ltd
Current assignee: Shenzhen Smaco Technology Ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-05-15
Anticipated expiration: 2040-01-08
Also published as: CN111150106B

Abstract

The utility model provides a locking unit and electrical heating suction device, the locking unit is used for electrical heating suction device, the locking unit include base, fixed connection in the fixing base of base, movable sleeve locate the base with sliding seat between the fixing base and arrange in the base with elastic component between the sliding seat, the sliding seat can elastic component support the top effect down relatively base circumferential direction or receiving certain orientation behind the axial force of base with the base joint and unable relative base circumferential direction, be formed with first air inlet on the base, be formed with the second air inlet on the fixing base, external gas can via first air inlet flows in the second air inlet.

Description

Locking unit and electric heating suction device

Technical Field

The invention relates to the technical field of atomization, in particular to an electric heating suction device and a locking unit thereof.

Background

One type of electric heating suction device is a device that heats and atomizes a liquid into a gas by means of a heating element. An example of a common electrically heated smoking device is an electronic cigarette. The electronic cigarette changes nicotine tobacco juice into steam through atomization, so that a user can suck the electronic cigarette, and the electronic cigarette has the same experience as a cigarette. However, the existing electronic cigarette still needs to be improved, and especially, the existing suction nozzle of the electronic cigarette only needs to be rotated to release the threaded connection between the suction nozzle and the rest part and remove the suction nozzle, so that the safety is not high.

Disclosure of Invention

In view of the above, the present invention aims to provide a locking unit and an electrically heated suction device that can solve the above problems, or at least solve them to some extent.

In one aspect, the invention provides a locking unit for an electric heating suction device, the locking unit includes a base, a fixed seat fixedly connected to the base, a movable seat movably sleeved between the base and the fixed seat, and an elastic member arranged between the base and the movable seat, the movable seat can rotate circumferentially relative to the base under the abutting action of the elastic member or can be clamped with the base after receiving a certain axial force towards the base so as not to rotate circumferentially relative to the base, a first air inlet is formed on the base, a second air inlet is formed on the fixed seat, and external air can flow into the second air inlet through the first air inlet.

In some embodiments, the movable seat includes an arc-shaped blocking piece and a notch, when the notch is at least partially aligned with the first air inlet, the first air inlet is in air communication with the second air inlet, and the blocking piece can be rotated circumferentially to at least partially block the first air inlet.

In some embodiments, the base includes an outer ring, an inner ring sleeved in the outer ring and disposed opposite to the outer ring at an interval, an annular groove is formed between the outer ring and the inner ring, the first gas inlet is formed in the outer ring, and the external gas can flow into the second gas inlet through the first gas inlet and the annular groove.

In some embodiments, the fixing seat is annular and is sleeved on the inner ring of the base, and the second air inlet is at least partially offset from the inner ring of the base in the axial direction.

In some embodiments, the groove wall of the ring groove is formed with a buckle, the movable seat comprises a blocking piece arranged at an interval in the axial direction of the buckle, and after the movable seat receives a certain axial force towards the base, the buckle circumferentially abuts against the blocking piece to enable the movable seat to be incapable of rotating relative to the base in the circumferential direction.

In some embodiments, the buckle is arc-shaped, and two buckles which are opposite to each other and spaced and symmetrical are formed on the groove wall of the ring groove, the fixed seat comprises two blocking pieces which are opposite to each other and spaced and symmetrical, and after the movable seat receives a certain axial force towards the base, each blocking piece is blocked between the two buckles.

In some embodiments, the movable seat forms an axial gap with the base under the abutting action of the elastic member, and the height of the axial gap is greater than the axial spacing height between the blocking piece and the buckle and less than the axial spacing height between the blocking piece and the bottom wall of the annular groove.

In some embodiments, the base is formed with a plurality of the first air inlets arranged at intervals along the circumferential direction, and the plurality of the first air inlets are arc-shaped.

In some embodiments, the fixing seat is formed with a plurality of second air inlets arranged at equal intervals along the circumferential direction.

In another aspect, the invention provides an electrically heated suction device, which includes the aforementioned locking unit, a battery unit fixedly connected to one end of the locking unit, and a suction nozzle assembly screwed to the other end of the locking unit.

According to the locking unit, the movable seat cannot rotate circumferentially relative to the base only after the base is pressed to a certain extent along the axial direction, and the movable seat always rotates circumferentially relative to the base in a normal state, so that the external thread matched with the internal thread of the suction nozzle can be arranged on the movable seat, the suction nozzle can be opened only after the suction nozzle is pressed, and the use safety is enhanced.

Drawings

Fig. 1 is a perspective assembly view of an electrically heated pumping device according to an embodiment of the present invention.

Fig. 2A is an exploded view of the electrically heated pumping device shown in fig. 1.

Fig. 2B is a further exploded view of the body assembly of the electrically heated suction device shown in fig. 2A.

Fig. 3 is a cross-sectional view of the electrically heated pumping device shown in fig. 1.

Fig. 4 is another angular view of the housing of the body assembly shown in fig. 2B.

Fig. 5 is a further exploded view of the switch unit of the body assembly shown in fig. 2B.

Fig. 6 is another angular view of the battery cell of the body assembly shown in fig. 2B.

Fig. 7 is a further exploded view of the battery cell shown in fig. 6.

Fig. 8 is a schematic view of a holder for the battery unit shown in fig. 7.

Fig. 9 is another angular view of the locking unit of the body assembly shown in fig. 2B.

Fig. 10 is an exploded view of the locking unit.

Fig. 11 is another angular view of fig. 10.

Fig. 12A is a perspective view of the heat generating component of the electrically heated suction device shown in fig. 2A.

Fig. 12B is another angular view of the heat generating component shown in fig. 12A.

Fig. 13 is a further exploded view of the heating element shown in fig. 12A.

Fig. 14 is another angular view of the heat generating component shown in fig. 13.

Figure 15 is a further exploded view of the reservoir assembly of the electrically heated suction device of figure 2A.

Figure 16 is a cross-sectional view of the reservoir assembly of the electrically heated suction device of figure 2A.

Figure 17 is a further exploded view of the nozzle assembly of the electrically heated suction device shown in figure 2A.

FIG. 18 is another angled view of the suction nozzle assembly shown in FIG. 17.

Detailed Description

The invention will be described in detail with reference to the accompanying drawings and specific embodiments, so that the technical scheme and the beneficial effects of the invention are more clear. It is to be understood that the drawings are provided for purposes of illustration and description only and are not intended as a definition of the limits of the invention, but are drawn to scale.

The electric heating suction device atomizes liquid in an electric heating mode, for example, the liquid is used as a tobacco tar type electronic cigarette, and tobacco tar is heated to be atomized to generate smoke for smokers to absorb. Of course, the electric heating smoking device of the invention can be used in any occasions needing liquid atomization, and is not limited to electronic cigarettes. Fig. 1 and fig. 2A show an embodiment of an electrically heated suction device of the present invention, which includes a main body assembly 10, a nozzle assembly 30 sleeved with the main body assembly 10, and an atomizing assembly disposed in the nozzle assembly 30, wherein the atomizing assembly includes a liquid storage assembly 50 and a heat generating assembly 70. The reservoir assembly 50 is used to store liquids, such as tobacco tar and the like. The main body component 10 is internally provided with a power supply, the power supply is electrically connected with the heating component 70, the heating component 70 is electrified to heat the liquid to atomize the liquid, and the gas formed by atomization is discharged outwards from the suction nozzle component 30 to be sucked or used by a user. It should be understood that some of the components of the present invention may be used in other types of electrically heated smoking devices, for example, the body assembly 10, the mouthpiece assembly 30, etc. may also be suitable for use in a flue-cured type electronic cigarette.

Referring to fig. 2B, the main assembly 10 includes a housing 12, a battery unit 14 disposed in the housing 12, a switch unit 16 interacting with the battery unit 14, and a locking unit 18.

Referring to fig. 4, the casing 12 is a hollow round rod structure, and has an opening end facing the main body assembly 10 and a closed end away from the main body assembly 10, and a space is formed therein to accommodate the battery unit 14. It should be understood that the outer shape of the housing 12 is not limited to this embodiment, and may be any other suitable shape. A first opening 121 is formed in a circumferential side wall of the housing 12, the first opening 121 penetrates the housing 12 in a thickness direction of the housing 12, and the switch unit 16 penetrates the first opening 121. A limiting groove 123 is concavely formed on the inner surface of the circumferential side wall of the case 12 for assembly positioning of the battery cell 14. In this embodiment, the two limiting grooves 123 are symmetrically disposed, the two limiting grooves 123 are circumferentially spaced by 180 degrees, and each limiting groove 123 extends a certain length from the open end of the housing 12 toward the housing 12 along the axial direction.

As shown in fig. 5, the switch unit 16 is disposed at the first opening 121 of the casing 12, and includes a key 161 made of a light guide material and a key case 162 made of a light shielding material and covering the key 161. The key 161 includes a body 163, a pressing portion 164 protruding from the center of one side surface of the body 163 toward the battery unit 14, a hook 165 protruding from both ends of the body 163 toward the battery unit 14, and a boss 167 protruding from the other side surface of the body 163 toward the key case 162. The key casing 162 is sleeved on the body 163, and a through hole 168 is formed on the key casing and is inserted into the convex column 167, so that the convex column 167 is visible from the outside, and the convex column 167 can be used as an indicator light to indicate the working condition of the electric heating and pumping device. Preferably, a plurality of ribs 166 are formed on the circumferential side surface of the body 163, so that the key casing 162 and the body 163 are tightly clamped with each other, and a tight fit is formed therebetween, thereby preventing the key casing 162 from falling.

As shown in fig. 2B and fig. 6 to 8, the battery unit 14 includes a bracket 141, a battery 142 fixed in the bracket 141, and a first circuit board 143 and a second circuit board 144 connected to the battery 142.

The bracket 141 is accommodated in the housing 12, and the overall shape of the bracket 141 matches with the inner space of the housing 12, in this embodiment, the bracket 141 is semi-cylindrical. The holder 141 has a stopper rib 145 formed on an outer wall surface thereof in a protruding manner, and the stopper rib 145 corresponds to the stopper groove 123 of the case 12 in structure, position, and number. In this embodiment, two limiting ribs 145 are formed at one end of the bracket 141 facing the nozzle assembly 30. When assembling, the stopper rib 145 of the holder 141 is aligned with the stopper groove 123 of the housing 12, and then the holder 141 is inserted into the housing 12 from the open end of the housing 12. After the holder 141 is inserted into the housing 12, the stopper ribs 145 on the holder 141 are received in the corresponding stopper grooves 123, and the holder 141 and the housing 12 are positioned in the circumferential direction. It should be understood that the limit groove 123 may be formed on the bracket 141, and the limit rib 145 may be correspondingly formed on the housing 12. In addition, the number and distribution of the limiting grooves 123/limiting ribs 145 are not limited to this embodiment.

The bracket 141 is formed with a semi-cylindrical battery compartment 146 for accommodating and fixing the battery 142. The battery 142 is the power source for the entire electrically heated suction device, and is preferably a rechargeable battery that can be recharged by connecting to an external power source. The first circuit board 143 and the second circuit board 144 are fixedly connected to the bracket 141 and are respectively located at two opposite ends of the battery compartment 146. The first circuit board 143 is located at one end of the bracket 141 close to the nozzle assembly 30 and is opposite to the first opening 121 of the housing 12; the second circuit board 144 is located at an end of the bracket 141 away from the nozzle assembly 30. A switching circuit is formed on the first circuit board 143, and the switching circuit connects the battery 142 and the heat generating component 70. The contact 147 formed on the first circuit board 143 functions with the pressing portion 164 of the switch unit 16 to control the switch circuit, and thus the operating condition of the heating element 70.

The holder 141 is formed with a receiving groove 1410 corresponding to the first opening 121 of the housing 12 for receiving the switch unit 16 penetrating the first opening 121. The bottom wall of the receiving groove 1410 is formed with a first through hole 1412 corresponding to the pressing portion 164 of the key 161, and the pressing portion 164 passes through the first through hole 1412 and faces the contact 147. Preferably, the pressing portion 164 is sleeved with a light-shielding insulating sleeve 169 (see fig. 5), such as a silicone sleeve, and an end of the insulating sleeve 169 facing the contact 147 is in an annular structure with a second through hole 1690, so that light emitted by the contact 147 during operation can pass through the second through hole 1690 on the insulating sleeve 169, the pressing portion 164 of the key 161, and the body 163 sequentially and be transmitted to the boss 167 for indication, and the impact of the pressing portion 164 on the contact 147 can be buffered. The bottom wall of the supporting receiving groove 1410 is formed with a buckle hole 1414 corresponding to the buckle 165 of the key 161, when the switch unit 16 is assembled with the bracket 141, the two buckles 165 respectively pass through the buckle hole 1414 and buckle on the edge of the buckle hole 1414 of the bracket 141, and a gap is kept between the end surface of the switch unit 16 facing the bottom wall of the receiving groove 1410 and the bottom wall of the receiving groove 1410 at this time, so as to allow the switch unit 16 to be pressed in the radial direction, that is, the switch unit 16 is movably connected to the bracket 141. It should be understood that the switch unit 16 and the bracket 141 may have other connection manners, and are not limited to the embodiment.

A charging circuit and a charging interface 148 are formed on the second circuit board 144, and the charging circuit is electrically connected to the battery 142 and the charging interface 148. The charging interface 148 is oriented toward the closed axial side end of the housing 12 for charging the battery 142 for connection to an external power source. Preferably, the charging interface 148 is a standard female interface, such as a USB interface, a Micro USB interface, a Type-C interface, a Lighting interface, and the like. A second opening 125 (see fig. 2B) is formed on an axial side end of the housing 12 corresponding to the charging interface 148. After the bracket 141 is assembled to the housing 12, the charging interface 148 is inserted into the second opening 125 and is connected to an external power source via a data cable or the like for charging, so as to ensure normal use of the electric heating suction device.

The first circuit board 143 and the second circuit board 144 are fixedly connected to the bracket 141, the bracket 141 is formed with a plurality of barbs 1416 corresponding to the first circuit board 143, and the barbs 1416 respectively hook four corners of the first circuit board 143 to fixedly connect the first circuit board 143 to the bracket 141; a plurality of fixing holes 1418 are formed in the bracket 141 corresponding to the second circuit board 144, and fixing members such as screws pass through the second circuit board 144 and are screwed in the fixing holes 1418, so that the second circuit board 144 is fixedly connected to the bracket 141. Preferably, the second circuit board 144 further has a plurality of positioning holes 149 formed thereon, and the bracket 141 has a plurality of positioning posts 1419 formed thereon corresponding to the positioning holes 149. During assembly, the second circuit board 144 is initially positioned on the bracket 141 by inserting the positioning post 1419 into the positioning hole 149, and then fixed by screws or the like. It should be understood that the first circuit board 143 may also be connected to the bracket 141 by screwing, snapping, etc., and the second circuit board 144 may also be connected to the bracket 141 by hooking, snapping, etc., without being limited to the specific embodiment.

As shown in fig. 3 and fig. 9 to 11, the locking unit 18 includes a base 181, a fixed seat 182 connected to the base 181, a movable seat 183 sleeved between the base 181 and the fixed seat 182, and an elastic member 184 disposed between the base 181 and the movable seat 183.

The base 181 is a cylindrical structure, and a connection hole 185 penetrating along the axial direction is formed in the center of the base 181 and is used for connecting the heating element 70 with the first circuit board 143. The base 181 has a first end inserted into the housing 12 and a second end extending out of the housing 12. The first end includes a first outer ring 1812 and a first inner ring 1814, the first outer ring 1812 and the first inner ring 1814 are nested and spaced apart to form a first ring groove 1813 therebetween. The second end includes a second outer ring 1816 and a second inner ring 1818, the second outer ring 1816 being nested and spaced apart from the second inner ring 1818 to form a second ring channel 1817 therebetween. In contrast, the first ring groove 1813 has a smaller width in the radial direction, and the second ring groove 1817 has a larger width in the radial direction.

The outer diameter of the first outer ring 1812 is equal to the inner diameter of the open end of the housing 12, the outer diameter of the second outer ring 1816 is equal to the outer diameter of the open end of the housing 12, the first outer ring 1812 of the base 181 is inserted into the housing 12 during assembly, and the second outer ring 1816 abuts against the end face of the open end of the housing 12. Preferably, the outer circumferential surface of the first outer ring 1812 is corrugated, and the base 181 is inserted into the housing 12 to form a tight fit. It should be understood that the base 181 and the housing 12 may have other connection means, and are not limited to a tight fit. The second outer ring 1816 of the base 181 is formed with a first air inlet 1819, and the first air inlet 1819 serves as an air inlet in the electric heating suction device of the present invention. In this embodiment, the first air inlets 1819 are multiple and arranged in a row.

As shown in fig. 6 and 7, the bracket 141 protrudes toward the base 181 to form a connecting portion 15, which is inserted into the first annular groove 1813 of the base 181. In this embodiment, the connecting portion 15 has a substantially semicircular ring shape, and has an outer diameter corresponding to the inner diameter of the first outer ring 1812 and an inner diameter corresponding to the outer diameter of the first inner ring 1814. Preferably, a plurality of ribs 152 are formed on the outer wall surface of the connecting portion 15, and the connecting portion 15 of the bracket 141 is inserted into the first ring groove 1813 of the base 181 to form a tight fit. It should be understood that the base 181 and the bracket 141 may have other connecting means, and are not limited to a tight fit.

Preferably, the inner wall surface of the first outer ring 1812 of the base 181 is concavely formed with positioning grooves 1815, and the number of the positioning grooves 1815 may be one or more, in this embodiment, 2. Correspondingly, the connecting portion 15 is protrudingly formed with positioning ribs 154, the positioning ribs 154 are aligned with the positioning grooves 1815 one by one during assembly, then the connecting portion 15 is inserted into the first annular groove 1813, and after assembly, the positioning ribs 154 are received in the corresponding positioning grooves 1815 to limit the bracket 141 and the base 181 in the circumferential direction. It should be understood that the positioning grooves 1815 may be formed on the connecting portion 15 of the bracket 141 and the positioning ribs 154 may be formed on the base 181. Of course, the base 181 and the bracket 141 may have other circumferential positioning manners, and are not limited to this specific embodiment.

The fixing base 182 is annular and is sleeved on the second inner ring 1818 of the base 181, and the fixing base and the second inner ring can be tightly matched. The axial height of the fixing base 182 is greater than the axial height of the second inner ring 1818, so that the fixing base 182 partially protrudes outward relative to the second inner ring 1818 for connection with other components. A second air inlet 1822 is formed on a portion of the fixing seat 182 protruding from the second inner ring 1818, and the second air inlet 1822 is communicated with the first air inlet 1819 of the base 181 through a second ring groove 1817. In this embodiment, the second air inlets 1822 are a plurality of second air inlets, and are uniformly spaced along the circumference of the fixing base 182, and each second air inlet 1822 penetrates through the fixing base 182 in the thickness direction.

A convex ring 1824 is formed on the inner wall surface of the fixing base 182 to protrude inward in the radial direction, and is used for connecting with the heating element 70. In this embodiment, an internal thread is formed on an inner wall surface of the protruding ring 1824 for screwing and fixing the heat generating component 70. In other embodiments, the fixing seat 182 and the heat generating component 70 may have other fixing manners, such as a tight fit, and the internal thread may be omitted. The outer wall surface of the fixed seat 182 protrudes radially outward to form a flange 1826 for being matched and positioned with the movable seat 183. Preferably, the collar 1824 and flange 1826 are axially offset from the second inlet port 1822 and are further away from the second inner ring 1818 of the base 181 relative to the second inlet port 1822.

The movable seat 183 is annular and movably disposed between the base 181 and the fixed seat 182. The movable seat 183 includes a first ring portion 1832 formed to protrude toward the base 181 in the axial direction, a second ring portion 1834 formed to extend away from the base 181 in the axial direction, a third ring portion 1836 formed to extend outward in the radial direction, and a fourth ring portion 1838 formed to extend inward in the radial direction. The outer diameter of the first ring portion 1832 is equal to the inner diameter of the second outer ring 1816 of the base 181, the inner diameter is larger than the outer diameter of the fixing base 182, the inner diameter of the second ring portion 1834 is equal to the outer diameter of the flange 1826 of the movable base 183, the outer diameter of the third ring portion 1836 is equal to the outer diameter of the second outer ring 1816, and the inner diameter of the fourth ring portion 1838 is smaller than the outer diameter of the flange 1826 and not smaller than the outer diameter of the fixing base 182. When the assembly is performed, the first ring portion 1832 is inserted into the second outer ring 1816 and overlapped with the second outer ring 1816, the third ring portion 1836 is located at the axial outer end of the second outer ring 1816, the fixing base 182 passes through the fourth ring portion 1838 to be sleeved outside the second inner ring 1818, and the flange 1826 is sleeved inside the second ring portion 1834 and located at the axial outer end of the fourth ring portion 1838.

The elastic member 184 is disposed in the second ring groove 1817 and located between the base 181 and the fourth ring portion 1838 of the movable seat 183. In this embodiment, the elastic member 184 is a coil spring, and is sleeved on the fixing seat 182, and one end of the elastic member abuts against the base 181, and the other end abuts against the fourth ring portion 1838. Under normal conditions, the elastic element 184 deforms slightly to form a pre-tightening force, so as to form an axial acting force on the movable seat 183 away from the base 181, such that the fourth ring portion 1838 abuts against the flange 1826 of the fixed seat 182, and the movable seat 183 is positioned in the axial direction. At this time, the third ring portion 1836 is axially spaced from the second outer ring 1816 of the base 181 to form an axial gap 1830; the first ring portion 1832 is axially offset from the first inlet ports 1819 of the second outer ring 1816 of the base 181 by a distance that does not block the first inlet ports 1819.

Preferably, the first ring portion 1832 of the movable seat 183 extends axially toward the base 181 to form a blocking plate 1833, in this embodiment, 2 blocking plates 1833 are preferably symmetrically arranged, and a gap 1839 is formed between the two blocking plates 1833. The arc length corresponding to the gap 1839 is not less than the arc length occupied by the first air inlets 1819 on the base 181. When the notch 1839 is opposite to the position of the first air inlet 1819, the movable seat 183 does not shield the first air inlet 1819, and the air inlet amount is maximum; when the blocking piece 1833 is opposite to the first air inlet 1819, the blocking piece 1833 blocks the first air inlet 1819, and the amount of air is relatively small. Because the movable seat 183 is movably connected with the base 181, the movable seat 183 and the base 181 are not limited in the circumferential direction, so that the position of the blocking piece 1833 can be adjusted by rotating the movable seat 183 relative to the base 181, and the blocking piece can block the first air inlet 1819 or not, or block part of the first air inlet 1819, so that the effect of adjusting air inlet is achieved, and the air inlet adjusting device is simple and convenient.

Preferably, the outer edge of the bottom wall of the second ring groove 1817 of the base 181 is formed with an arc-shaped catch 1811 for abutting against the blocking sheet 1833 along the circumferential direction under certain conditions. In this embodiment, there are two snaps 1811 (only one is shown in the figure), and the two snaps 1811 are oppositely spaced and symmetrical. Under normal conditions, as mentioned above, due to the action of the elastic element 184, the fourth ring portion 1838 of the movable seat 183 abuts against the flange 1826 of the fixed seat 182, the third ring portion 1836 of the movable seat 183 and the second outer ring 1816 of the base 181 maintain an axial gap 1830 in the axial direction, at this time, the blocking piece 1833 is located at the axial upper end side of the buckle 1811, and the movable seat 183 can rotate circumferentially relative to the base 181, so as to adjust the position of the blocking piece 1833, and further adjust the air intake amount. When a force is applied to the movable seat 183 toward the base 181, the movable seat 183 moves toward the base 181 and compresses the elastic member 184 until the third ring portion 1836 of the movable seat 183 abuts against the second outer ring 1816 of the base 181 and cannot move any further. At this time, the blocking sheet 1833 moves to the arc-shaped space between the two buckles 1811, and the circumferential side of the buckle 1811 circumferentially supports the blocking sheet 1833, so that the movable seat 183 cannot circumferentially rotate any more, thereby circumferentially limiting the movable seat 183. Preferably, the height of the axial gap 1830 is greater than the axial spacing height between the block 1833 and the buckle 1811 and less than the axial spacing height between the blocking piece 1833 and the bottom wall of the second annular groove 1817, so as to ensure that the movable seat 183 can be pressed until the blocking piece 1833 is clamped between the two buckles 1811, and in actual operation, the operator is instructed to rotate the movable seat 183 only by pressing the movable seat 183 until the third ring portion 1836 abuts against the second outer ring 1816 of the base 181. It is understood that in other embodiments, the height of the axial gap 1830 may be greater than the axial spacing height of the blocking sheet 1833 from the bottom wall of the second ring groove 1817. When the acting force on the movable seat 183 is removed, the elastic member 184 recovers to deform and pushes the movable seat 183 to move away from the base 181 for resetting, and meanwhile, the blocking piece 1833 recovers to the upper end in the axial direction of the buckle 1811 again, so that the circumferential limit of the movable seat 183 and the base 181 is removed. It should be understood that the blocking plate 1833 and the buckle 1811 may also have other shapes and/or numbers, as long as the movable seat 183 can be prevented from rotating relative to the base 181 after the movable seat 183 is pressed, and the present embodiment should not be limited thereto.

As shown in fig. 3 and 12A-14, the heating element 70 includes a lower heating element seat 72, an upper heating element seat 74 partially disposed in the lower heating element seat 72, a heating element 76 disposed in the upper heating element seat 74, and an electrode 78 connected to the heating element 76, wherein the lower heating element seat 72 and the upper heating element seat 74 together constitute a heating element seat. It is understood that in other embodiments, the heat generating element seat may be integrally formed, and is not limited to the embodiment.

The lower base 72 of the heating element is hollow and cylindrical, and has a first end inserted into and fixedly connected with the convex ring 1824 of the fixing base 182 and a second end sleeved with the liquid storage component 50. In this embodiment, the outer diameter of the first end of the lower seat 72 of the heating element is equal to the inner diameter of the convex ring 1824 of the fixing seat 182, the outer wall surface of the first end of the lower seat 72 of the heating element is formed with the external thread 722 corresponding to the internal thread of the convex ring 1824, and the first end of the lower seat 72 of the heating element is screwed into the convex ring 1824 of the fixing seat 182 during assembly. Preferably, a first sealing ring 721 is disposed between the lower seat 72 of the heating element and the fixing seat 182, and a second sealing ring 727 is disposed between the lower seat 72 of the heating element and the suction nozzle assembly 30. The end of the first end of the lower seat 72 of the heating element extends radially inward to form a support ring 724, and a third through hole 725 is formed in the center of the support ring 724.

The first end of the electrode 78 is inserted into the third through hole 725 of the lower seat 72 of the heating element, the second end is inserted into the connecting hole 185 of the base 181, and the electrode 78 is electrically connected to the heating element 76 and the first circuit board 143. Preferably, an insulating ring 79 is disposed between the first end of the electrode 78 and the lower seat 72 of the heating element, and between the second end of the electrode 78 and the base 181. In this embodiment, the insulating ring 79 is tightly fitted on the electrode 78, an annular engaging groove 790 is formed on an outer wall surface of the insulating ring 79, and an inner edge of the first inner ring 1814 of the base 181 and an inner edge of the supporting ring 724 of the lower base 72 of the heating element are respectively engaged with the engaging groove 790 of the corresponding insulating ring 79. The first end of the electrode 78, i.e. the end facing the heating element 76, is a hollow structure, and a third air inlet 780 is formed on the electrode 78, wherein the third air inlet 780 penetrates through the electrode 78 in the thickness direction and communicates the second air inlet 1822 of the fixing base 182 and the inner space of the electrode 78 through the inner space of the second inner ring 1818. In this way, the first air inlet 1819 of the base 181, the second air inlet 1822 of the fixing seat 182, and the third air inlet 780 of the electrode 78 are communicated with each other to form an air inlet channel (shown by an arrow in fig. 3) of the electric heating suction device of the present invention, and the external air enters into the heat generating component 70 through the air inlet channel.

The upper heat generating element seat 74 is partially disposed within the lower heat generating element seat 72 and rests on the support ring 724. Preferably, a sealing ring 73 is disposed between the first end of the upper heat generating element seat 74 and the first end of the lower heat generating element seat 72. The upper seat 74 of the heating element is a hollow structure, a first gap 720 extending along the axial direction is formed between a first part outer wall 745 of the upper seat 74 of the heating element and a first part inner wall 723 of the lower seat 72 of the heating element at an interval, a liquid inlet 740 extending along the radial direction is further formed on the first part outer wall 745, and the liquid inlet 740 penetrates through the upper seat 74 of the heating element in the thickness direction so as to communicate the first gap 720 with the inner space of the upper seat 74 of the heating element. The liquid inlet 740 may be single or plural, and in this embodiment, is 2 and is symmetrically disposed. The second end of the upper seat 74 of the heating element extends outward to form a needle 742, the needle 742 extends out of the lower seat 72 of the heating element and penetrates into the liquid storage assembly 50, so that the liquid in the liquid storage assembly 50 can flow out of the liquid storage assembly 50 to the first gap 720, and finally enters the upper seat 74 of the heating element from the liquid inlet 740 of the upper seat 74 of the heating element, and the first gap 720 between the upper seat 74 of the heating element and the lower seat 72 of the heating element and the liquid inlet 740 of the upper seat 74 of the heating element jointly form a liquid flow channel (as shown by an arrow in fig. 3).

The heating element 76 is housed in the heating element upper seat 74, and has an axial hole 760 formed therethrough, and the axial hole 760 communicates with the internal space of the electrode 78, that is, with the intake passage. In this embodiment, the heating element 76 includes a liquid absorbing portion 761 and a heating wire 762 embedded in the liquid absorbing portion 761. The liquid absorbing material 761 has a hollow cylindrical shape, and the axial hole 760 is formed in a middle portion of the liquid absorbing material 761 and penetrates the liquid absorbing material 761 in an axial direction. The liquid absorbing material 761 is adapted to absorb liquid entering from the liquid inlet 740, and may be made of a material capable of absorbing liquid, such as ceramic, microporous ceramic, or cotton. The heating wire 762 is formed in a spiral shape as a whole and embedded in the inner wall of the liquid absorbing body 761, and heats and atomizes the liquid absorbed by the liquid absorbing body 761 when power is applied thereto, thereby generating gas. The second outer wall 746 of the upper heater element seat 74 is also formed with a first radially extending air outlet 744, and correspondingly, the second inner wall 729 of the lower heater element seat 72 is formed with a second radially extending air outlet 726 aligned with the first air outlet 744, the first air outlet 744 penetrating the upper heater element seat 74 in the thickness direction, and the second air outlet 726 penetrating the lower heater element seat 72 in the thickness direction. In this embodiment, the number of the first air outlets 744 and the number of the second air outlets 726 are 2, and the two first air outlets 744 are symmetrically arranged, and correspondingly, the two second air outlets 726 are also arranged. The axial bore 760 of the heating element 76 communicates with the first and

second air outlets

744, 726.

In particular, the first air outlet 744 and the liquid inlet 740 are not in fluid communication with each other, so that the liquid flowing out of the liquid storage assembly 50 can only flow into the absorption liquid 761 through the liquid inlet 740 for heating, and cannot flow into the absorption liquid 761 through the first air outlet 744. Specifically, the second partial outer wall 746 and the second partial inner wall 729 of the lower heating element seat 72 are in sealing contact with each other, for example, the wall surface of the second partial outer wall 746 and the corresponding wall surface of the second partial inner wall 729 of the lower heating element seat 72 are both in a circular arc shape to form a tight seal. The first air outlet 744 and the first gap 720 and the first liquid inlet 740 are arranged to intersect each other at an angle in the circumferential direction, i.e., they are not on the same axis. Preferably, the included angle between the first air outlet 744 and the liquid inlet 740 is not less than 90 degrees. In this embodiment, a connection line of the two first air outlets 744 is perpendicular to a connection line of the two liquid inlets 740, that is, an included angle between the first air outlets 744 and the liquid inlets 740 is 90 degrees. Preferably, the first air outlet 744 of the upper seat 74 of the heating element is axially staggered from the liquid inlet 740 by a certain distance, the liquid inlet 740 is disposed opposite to the heating element 76, and the first air outlet 744 is located at the axial side end of the heating element 76, which is far away from the air inlet channel, so as to substantially prevent the liquid from flowing out through the first air outlet 744, and only allow the gas to overflow through the first air outlet 744.

Preferably, the needle 742 includes a peripheral needle 742A extending axially outward from the second portion outer wall 746 of the upper seat 74 of the heating element and a central needle 742B extending axially outward from the upper axial end of the upper seat 74 of the heating element. In this embodiment, the number of the peripheral pricks 742A is two, and is symmetrical to the central prick 742B. The peripheral needle 742A is curved, and preferably, the tip of the peripheral needle 742A forms a wedge, which is preferably at an angle of less than 45 degrees, to facilitate rapid penetration of the reservoir 50. The central prick 742B is cylindrical, preferably, the central prick 742B is tapered, i.e., the cross-sectional area of the central prick 742B gradually increases from top to bottom, so as to increase the pushing force of the central prick 742B.

As shown in fig. 15-16, the reservoir assembly 50 includes a reservoir 52 and a sealing cap 54 sealingly connected to the reservoir 52, the sealing cap 54 preferably being integrally formed of silicone. In this embodiment, the liquid storage chamber 52 is a cylindrical structure with an open end and a closed end, and the opening of the cylindrical structure faces the heating element 70. The reservoir 52 is formed with a locking hole 53 near an open end thereof for snap-fit connection with the sealing cap 54. Preferably, the buckle 53 penetrates the reservoir 52 in the thickness direction of the reservoir 52. Preferably, the inner side wall of the reservoir 54 away from the open end thereof protrudes radially inwardly to form a radially extending annular step 540 on the inner wall of the reservoir 54 for abutting against the sealing cover 54. It is understood that in other embodiments, the top surface with other shapes may be formed, and is not limited to the annular step in this embodiment.

The sealing cover 54 is hermetically connected to the open end of the liquid storage chamber 52, and includes a circular base plate 56 and a side plate 58 extending substantially vertically from the edge of the base plate 56, and the base plate 56 and the side plate 58 together enclose a receiving cavity 541. The outer diameter of the side plate 58 is matched with the inner diameter of the opening end of the liquid storage bin 52, one axial end of the side plate 58 abuts against the annular step 540, and the other axial end of the side plate 58 is flush with the opening end of the liquid storage bin 52. When the reservoir assembly 50 is not connected to the heater assembly 70, i.e., when the reservoir assembly is in the separated configuration, the substrate 56 and the inner wall of the reservoir 54 together enclose a sealed reservoir 520 for containing a liquid. Preferably, the maximum cross-sectional area of the substrate 56 is less than the minimum cross-sectional area of the reservoir 520. A locking block 59 is formed on the outer wall surface of the side plate 58 to be protruded outwardly for being engaged with the locking hole 53 of the reservoir 52. Preferably, as shown in fig. 16, the outer surface 590 of the latch 59 is inclined at a certain angle with respect to the axial direction of the sealing cover 54, i.e., the outer surface 590 is a slope. The height of the latch 59 protruding from the side plate 58 in the radial direction is gradually increased along the direction away from the closed end of the storage chamber 52 and gradually away from the central axis of the sealing cover 54, that is, along the direction away from the storage chamber 52 of the sealing cover 54. To avoid interference with other components, the maximum height of the latch 59 protruding from the side plate 58 is not greater than the thickness of the open end of the reservoir 52, i.e., does not protrude from the latch hole 53. During assembly, the inclined outer surface of the clamping block 59 plays a guiding role, and the assembly of the liquid storage bin 52 and the sealing cover 54 is facilitated. Preferably, the outer surface of the fixture block 59 forms an included angle of 30-60 degrees, more preferably, a 45 degree included angle with respect to the axis of the sealing cover 54, which not only facilitates the insertion of the sealing cover 54 into the liquid storage bin 52, but also ensures stable assembly.

When the liquid storage component 50 and the heating component 70 are connected, the substrate 56 of the sealing cover 54 is inserted through the needle 742 in alignment with the needle until the sealing cover 54 is sleeved on the second end of the lower seat 72 of the heating component 70, i.e. the second end of the lower seat 72 of the heating component is accommodated in the accommodating cavity 541 of the sealing cover 54. When the reservoir assembly 50 is in the connected configuration, the peripheral spikes 742A have pierced the periphery of the base plate 56, in combination with the central spikes 742B abutting (i.e., not piercing) the middle of the base plate 56 to completely separate the base plate 56 from the side plate 58, and the spikes 742 extend into the reservoir 520 such that the base plate 56 is pushed away from the open end of the reservoir 52 to open the open end of the reservoir 52. In addition, during the separation process, due to the aforementioned abutting of the annular step 540 against the side plate 58, the sealing cover 54 will not be displaced axially, and the smooth separation process is ensured. After separation, the sealing cover 54 only has the annular side plate 58, and since the maximum cross-sectional area of the substrate 56 is smaller than the minimum cross-sectional area of the reservoir 520, the substrate 56 separated from the side plate 58 pushed by the needle 742 will not block the liquid in the reservoir 520, and the liquid in the reservoir 520 can flow out to the first gap 720 via the opening end of the reservoir 52 and reach the heating element 76 for heating and atomization. Preferably, as shown in fig. 16, the thickness of the edge of the substrate 56 is much smaller than the thickness of the center of the substrate 56, which not only reduces the difficulty of the peripheral needle 742A penetrating the edge of the substrate 56, but also provides a stronger force against the central needle 742B, thereby facilitating the central needle 742B to push the substrate 56 away. Preferably, the thickness of the base 56 is approximately 0.05mm to 0.2mm at the periphery and approximately 0.5mm to 2mm at the center of the base 56. Preferably, the outer wall surface of the second end of the lower seat 72 of the heating element is formed with a protruding annular rib 728, the outer diameter of the annular rib 728 is slightly larger than the inner diameter of the side plate 58 of the sealing cover 54, and the annular rib 728 and the side plate 58 form a tight fit when assembled to fix the liquid storage assembly 50 on the heating assembly 70 and form a sealing connection. It is understood that the liquid storage component 50 and the heat generating component 70 can be fixed in other ways, and the above embodiments are not limited thereto.

It will be appreciated that in other embodiments, the base plate 56 may be made of other materials such as plastic and metal, and accordingly, the periphery of the base plate 56 is formed with a plastic/metal film with a smaller thickness for easy puncturing, and the middle of the base plate 56 is formed with a plastic/metal plate with a larger thickness for easy pushing, so as to facilitate separation of the base plate 56 from the side plate 58.

When the reservoir assembly 50 of this embodiment is not in use, the sealing cap 54 seals the reservoir 52 tightly, thereby avoiding problems such as leakage during shipping. When the liquid storage component 50 is used, the liquid storage component 50 is only required to be inserted into the heating component 70, and the operation is convenient. In addition, in the using process, the base plate 56 is completely pushed away from the opening end of the liquid storage bin 52, so that the opening through which liquid flows out from the liquid storage assembly 50 is large, the liquid can flow out smoothly, and the situation of blocking cannot occur. After the liquid in the liquid storage assembly 50 is used up, only the liquid storage assembly 50 needs to be replaced simply, and complicated operations such as liquid injection are not needed.

As shown in fig. 3 and 17-18, the suction nozzle assembly 30 includes a hollow suction nozzle 32 and a suction nozzle cover 34 covering the suction nozzle 32, and a third sealing ring 36 is preferably disposed between the suction nozzle 32 and the suction nozzle cover 34. The nozzle cover 34 has a hollow cylindrical shape, and has a mounting hole 38 formed at one end thereof for connection with the nozzle 32 and an internal thread 39 formed at the other end thereof for connection with the movable seat 183 of the main assembly 10. Correspondingly, the second ring portion 1834 of the movable block 183 is formed with external threads 1835 (see fig. 9-11). When assembling, the nozzle cover 34 is screwed on the movable base 183 and sleeved with the heating component 70 and the liquid storage component 50. A second gap 340 is formed between the nozzle cover 34 and the heat generating component 70 and the liquid storage component 50, the second gap 340 is communicated with a second air outlet 726 of the lower seat 72 of the heat generating component 70, so that the first air outlet 744, the second air outlet 726, the second gap 340 between the nozzle cover 34 and the heat generating component 70 and the liquid storage component 50, and the internal space of the nozzle 32 together form an air outlet channel (as shown by an arrow in fig. 3).

When the electric heating suction device of the present invention is used, the button 161 of the switch assembly is pressed to connect the battery 142 and the heating wire 762 of the heating assembly 70. The liquid in the reservoir 52 flows out of the reservoir chamber 520, flows into the liquid absorbing body 761 in the upper seat 74 through the first gap 720 and the liquid inlet 740, and is atomized by the energized heater 762. At the same time, the external air flows along the intake passage and enters the axial hole 760 of the heat generating element 76, and is mixed with the gas atomized by the heat generating element 76 to form a mist. The mist flows along the air outlet channel to the suction nozzle 32 for the user to suck. Because the first air outlet 744 and the second air outlet 726 of the air outlet channel respectively transversely penetrate through the upper heating element seat 74 and the lower heating element seat 72, the mist firstly flows out of the heating element 70 along the radial direction and transversely outwards, and then is bent to overflow to the suction nozzle 32 along the second gap 340 between the heating element 70, the liquid storage element 50 and the suction nozzle cover 34, so that the liquid flow channel, the air inlet channel and the air outlet channel of the electric heating suction device are completely separated, not only can the liquid oil be effectively prevented from being sucked by a user, but also the subsequent cleaning of the suction nozzle assembly 30 is facilitated (because the suction nozzle assembly 30 is not stained with the liquid in the liquid storage bin, such as the smoke oil).

In the electric heating suction device of the present invention, which is in a locked state in a normal state, as shown in fig. 3, the nozzle cover 34 of the nozzle assembly 30 is screwed with the movable seat 183 of the main body assembly 10, and the movable seat 183 and the base 181 are relatively rotatable without a limit in a circumferential direction, so that rotating the nozzle assembly 30 or the main body assembly 10 only rotates the movable seat 183 relative to the base 181, and the nozzle assembly 30 cannot be detached. When the electric heating suction device of the present invention needs to replace the heat generating component 70 or the liquid storage component 50, a user presses the nozzle component 30 to push the movable seat 183 to move toward the base 181, until the blocking piece 1833 of the movable seat 183 is fastened between the two fasteners 1811 of the base 181, at this time, the blocking piece 1833 and the fasteners 1811 limit the rotation of the movable seat 183 relative to the base 181, the electric heating suction device of the present invention is in an unlocked state, the nozzle component 30 is rotated in a direction opposite to the screwing direction of the nozzle cover 34 and the movable seat 183, so that the screwing between the nozzle cover 34 and the movable seat 183 can be released, and the nozzle component 30 can be removed from the main body component 10 to replace the heat generating component 70 and/or the liquid storage component 50. After the replacement is finished, the suction nozzle assembly 30 is covered again and the suction nozzle cover 34 of the suction nozzle assembly 30 is screwed on the movable seat 183 by pressing the suction nozzle assembly 30 (the movable seat 183 is reset by the elastic piece 184), and the whole process is simple and convenient and is easy to operate.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-listed embodiments, and any simple changes or equivalent substitutions of technical solutions that can be obviously obtained by those skilled in the art within the technical scope of the present invention are within the protection scope of the present invention.

Claims

1. Locking unit, it is used for electrical heating suction device, a serial communication port, the locking unit include base, fixed connection in fixing base, the movable sleeve of base are located the base with sliding seat between the fixing base and arrange in the base with elastic component between the sliding seat, the sliding seat can elastic component support the top effect down relative base circumferential direction or receiving certain orientation behind the axial force of base with the base joint and unable relative base circumferential direction, be formed with first air inlet on the base, be formed with the second air inlet on the fixing base, external gas can via first air inlet flows in the second air inlet.

2. The lock-out unit of claim 1, wherein the movable seat includes an arcuate flap and a notch, the first inlet port being in gaseous communication with the second inlet port when the notch is at least partially aligned with the first inlet port, and the flap being circumferentially rotatable to at least partially block the first inlet port.

3. The lock-up unit of claim 1, wherein the base includes an outer ring, an inner ring disposed in the outer ring and spaced apart from the outer ring, an annular groove is formed between the outer ring and the inner ring, the first inlet is formed in the outer ring, and the external gas can flow into the second inlet through the first inlet and the annular groove.

4. The lock-out unit of claim 3, wherein the anchor is annular and is disposed about the inner ring of the base, and the second inlet port is at least partially axially offset from the inner ring of the base.

5. The locking unit of claim 3, wherein a slot wall of the annular slot is formed with a catch, and the movable seat includes a blocking piece axially spaced from the catch, and when the movable seat receives a certain axial force toward the base, the catch circumferentially abuts against the blocking piece, so that the movable seat cannot circumferentially rotate relative to the base.

6. The locking unit of claim 5, wherein the latch is curved, and the slot wall of the annular slot is formed with two symmetrical latches spaced from each other, and the fixed base includes two symmetrical catches spaced from each other, and each catch is clamped between two of the latches after the movable base is subjected to a certain axial force toward the base.

7. The locking unit of claim 5, wherein the movable seat forms an axial gap with the base under the abutting action of the elastic member, and the height of the axial gap is greater than the axial spacing height between the blocking piece and the buckle and less than the axial spacing height between the blocking piece and the bottom wall of the annular groove.

8. The latch unit of claim 1 wherein said base has a plurality of said first inlet ports formed therein and spaced circumferentially, said plurality of first inlet ports being arcuate.

9. The lock unit of claim 1, wherein the fixing seat is formed with a plurality of the second air inlets arranged at regular intervals in a circumferential direction.

10. An electrically heated suction device comprising the locking unit of any one of claims 1 to 9, a battery unit fixedly connected to one end of the locking unit, and a mouthpiece assembly threadedly coupled to the other end of the locking unit.