Lifting Structure and Air Purifier

Abstract

The present invention provides a lifting structure and an air purifier. The lifting structure includes: a support member (10); a lifting member (20) which is disposed on the support member (10) in a liftable manner, and the lifting member (20) has an open state for opening an air outlet and a closed state for closing the air outlet; a connecting mechanism, under the action of an external force, the lifting member (20) is switched between the open state and the closed state through the connecting mechanism. The technical solution of the present invention realizes the lifting of the lifting member through an external force, without power supply to the lifting structure, effectively solving the problem that the lifting head assembly cannot return to its original position due to the loss of power of the power component when the air purifier is powered off.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification, and in particular to a lifting structure and an air purifier. Background Art

[0002] At present, the air outlet of the tower air purifier is generally located at the top of the whole machine. The purified air is blown out from the grille of the air outlet and diffused into the indoor air, thereby circulating the air indoors. In addition, the air outlet is always open, which will cause indoor pollutants to float into the machine from the air outlet when the machine is not running. When the machine is turned on again, the pollutants will be blown out directly from the air outlet and mixed into the indoor air, causing secondary pollution.

[0003] In order to solve the above problems, a purifier lifting head structure and an air purifier are provided in the prior art. The purifier lifting head structure includes a lifting head assembly for sealing or opening the air outlet and a power assembly for driving the lifting head assembly to move up and down. The power assembly includes a guide fixing plate fastened to the purifier body, a lifting member slidably inserted on the guide fixing plate, and a power member arranged below the guide fixing plate to drive the lifting member to move up and down. The top of the lifting member is clamped above the guide fixing plate and fastened to the lifting head assembly. The bottom end of the lifting member is extended below the guide fixing plate and is connected to the power member. A rack is provided at the bottom end of the lifting member. The power member includes a motor with an output shaft and a gear mounted on the output shaft. The rack and the gear are matched. Once the power is off, the power assembly will lose power, causing the lifting head assembly to be unable to return to its original position. At this time, the air outlet is always in an open state, and indoor pollutants float into the machine from the air outlet. When the power is on, the pollutants will be directly blown out from the air outlet and mixed into the indoor air to cause secondary pollution. Summary of the invention

[0004] The main purpose of the present invention is to provide a lifting structure and an air purifier to solve the problem in the prior art that when the air purifier is powered off, the power component loses power, resulting in the upgrade head component being unable to return to its original position.

[0005] To achieve the above-mentioned purpose, the present invention provides a lifting structure, including: a supporting component; a lifting component, which is liftably arranged on the supporting component, and the lifting component has an open state for opening the air outlet and a closed state for closing the air outlet; a connecting mechanism, and the lifting component is switched between the open state and the closed state through the connecting mechanism under the action of external force.

[0006] Furthermore, the connecting mechanism includes: a lifting elastic member, which is arranged between the supporting member and the lifting member; a locking assembly, which has a first locking position for locking the lifting member in an open state and a second locking position for locking the lifting member in a closed state. Under the action of external force and the lifting elastic member, the locking assembly switches between the first locking position and the second locking position.

[0007] Further, the locking assembly includes: a sliding groove provided on the outer wall of the lifting member, the sliding groove having a first locking structure and a second locking structure therein; a fitting, the connecting end of the fitting being connected to the supporting member, and the free end of the fitting extending into the sliding groove. When the free end cooperates with the first locking structure, the locking assembly is in the first locking position, and when the free end cooperates with the second locking structure, the locking assembly is in the second locking position.

[0008] Further, the sliding groove includes a first groove section, a second groove section, a third groove section and a fourth groove section connected in sequence. The first groove section, the second groove section, the third groove section and the fourth groove section enclose a heart shape. The third groove section and the second groove section, and the fourth groove section and the first groove section are symmetrically arranged. A second locking structure is provided at the connection between the second groove section and the third groove section, and a first locking structure is provided at the connection between the fourth groove section and the first groove section.

[0009] Further, a first step is formed at the connection between the groove bottom surface of the fourth groove section and the groove bottom surface of the first groove section, and the first step forms the first locking structure, and / or a second step is formed at the connection between the groove bottom surface of the second groove section and the groove bottom surface of the third groove section, and the second step forms the second locking structure, and / or the groove depths of the first groove section, the second groove section, the third groove section and the fourth groove section gradually become shallower in the counterclockwise direction.

[0010] Further, the outer wall of the lifting member has a first vertical wall, the sliding groove is provided on the first vertical wall, the supporting member has a second vertical wall that cooperates with the first vertical wall, the fitting is provided on the second vertical wall, and / or the fitting is connected to the outer wall of the supporting member, and the supporting member has an avoidance opening for avoiding the movement of the free end of the fitting, and / or the fitting includes an L-shaped section, and the short section of the L-shaped section forms the free end.

[0011] Further, when the fitting includes an L-shaped section, the fitting further includes a spiral section connected to the long section of the L-shaped section, and the spiral section forms the connecting end.

[0012] Further, a connecting structure is provided on the supporting member, and the spiral section is sleeved on the connecting structure.

[0013] Further, the connecting structure includes two oppositely arranged connecting rods, and a limiting protrusion is provided on the outer wall of one end of each connecting rod away from the supporting member.

[0014] Further, the connecting structure further includes a fixing column, the first end of the fixing column is fixed on the supporting member, and one ends of the two connecting rods facing the supporting member are fixed on the second end of the fixing column.

[0015] Further, a guiding structure for guiding the lifting of the lifting member is provided between the lifting member and the supporting member.

[0016] Further, the guiding structure includes guiding columns provided on the outer wall of the lifting member and guiding grooves provided on the inner wall of the supporting member, and the guiding grooves cooperate with the guiding columns.

[0017] Further, a switch is provided on the supporting member, the switch has a pressing portion, and the lifting member has a driving structure cooperating with the pressing portion of the switch and an avoidance structure for avoiding the pressing portion. When the lifting member is in the open state, the driving structure cooperates with the pressing portion, and when the lifting member is in the closed state, the avoidance structure cooperates with the pressing portion.

[0018] Further, the driving structure is a driving inclined surface, the avoidance structure is an avoidance groove extending in the vertical direction, and the driving inclined surface is formed on the groove wall of the avoidance groove.

[0019] Further, the air outlet is formed on the top of the supporting member, and the lifting member is vertically movably arranged inside the supporting member.

[0020] Further, the supporting member includes an outer cylinder, a middle cylinder connected inside the outer cylinder, and an inner cylinder connected to the lower end of the middle cylinder. The outer diameter of the middle cylinder gradually decreases from top to bottom. An air outlet duct is formed between the upper part of the lifting member and the outer cylinder and the middle cylinder, and the lower part of the lifting member cooperates with the inner cylinder.

[0021] Further, the supporting member further includes a ring body connected to the lower end of the middle cylinder and the upper end of the inner cylinder, and air outlet through holes are provided on the ring body, and / or, the supporting member further includes a supporting ring connected to the lower end of the inner cylinder, and / or, the lifting member includes an umbrella surface, an upper cylinder connected to the umbrella surface, and a lower cylinder connected to the lower end of the upper cylinder. The outer diameter of the upper cylinder gradually decreases from top to bottom. The upper cylinder cooperates with the outer cylinder and the middle cylinder, and the lower cylinder cooperates with the inner cylinder.

[0022] Further, the lifting elastic member abuts between the bottom of the supporting member and the bottom of the lifting member.

[0023] Further, the bottom of the lifting member has a downwardly protruding lower limit boss, the bottom of the supporting member has an upwardly protruding upper limit boss, the upper end of the lifting elastic member is sleeved on the lower limit boss, and the lower end of the lifting elastic member is sleeved on the upper limit boss.

[0024] The present invention also provides an air purifier, including: the above-mentioned lifting structure.

[0025] The technical solution of the present invention has the following advantages: Under the action of an external force, the lifting member is switched between the open state and the closed state through the connecting mechanism, and the lifting of the lifting member is realized by the external force, without power supply to the lifting structure, effectively solving the problem that the lifting head assembly cannot return to its original position due to the loss of power of the power component when the air purifier is powered off. Description of the Drawings

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 The front view schematic diagram of the lifting structure provided by the present invention is shown;

[0028] Figure 2 Shows Figure 1 The enlarged schematic diagram of part A of the lifting structure of

[0029] Figure 3 Shows Figure 1 The exploded schematic diagram of the lifting structure of

[0030] Figure 4 Shows Figure 3 The enlarged schematic diagram of part B of the lifting structure of

[0031] Figure 5 Shows Figure 1 The sectional view schematic diagram of the lifting structure of

[0032] Figure 6 Shows Figure 5 The enlarged schematic diagram of part C of the lifting structure of

[0033] Figure 7 Shows Figure 1 The sectional view schematic diagram of the lifting structure of

[0034] Explanation of reference numerals:

[0035] 10, support member; 11, avoidance opening; 13, outer cylinder; 14, middle cylinder; 15, inner cylinder; 151, second vertical wall; 152, arc wall; 16, ring body; 161, air outlet through hole; 17, support ring; 18, upper limit boss; 19, first straight cylinder; 20, lifting member; 21, guide post; 22, driving inclined plane; 23, avoidance groove; 24, umbrella surface; 25, upper cylinder; 26, lower cylinder; 261, first vertical wall; 27, lower limit boss; 28, second straight cylinder; 30, lifting elastic member; 41, chute; 411, first groove section; 412, second groove section; 413, third groove section; 414, fourth groove section; 415, first step; 416, second step; 42, fitting; 421, L-shaped section; 422, spiral section; 50, connection structure; 51, connecting rod; 511, limit projection; 52, fixed column; 60, switch; 61, pressing part. Specific embodiments

[0036] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] As Figure 1 and Figure 3 shown, the lifting structure of this embodiment includes: a support member 10, a lifting member 20 and a connecting mechanism. The lifting member 20 is disposed on the support member 10 in a liftable manner. The lifting member 20 has an open state for opening the air outlet and a closed state for closing the air outlet. Under the action of an external force, the lifting member 20 is switched between the open state and the closed state through the connecting mechanism.

[0041] Applying the lifting structure of this embodiment, under the action of an external force, the lifting member 20 is switched between the open state and the closed state through the connecting mechanism, and the lifting of the lifting member is realized by an external force, without the need to supply power to the lifting structure, effectively solving the problem that the lifting head assembly cannot return to its original position due to the loss of power of the power component when the air purifier is powered off.

[0042] In this embodiment, the connecting mechanism includes: a lifting elastic member 30 and a locking assembly. The lifting elastic member 30 is disposed between the support member 10 and the lifting member 20. The locking assembly has a first locking position for locking the lifting member 20 in the open state and a second locking position for locking the lifting member 20 in the closed state. Under the action of an external force and the lifting elastic member 30, the locking assembly switches between the first locking position and the second locking position. The lifting elastic member 30 provides power for the lifting of the lifting member. Assume that the initial state of the lifting member 20 is the closed state. When the lifting member 20 is pressed for the first time, the lifting member 20 compresses the lifting elastic member 30. When the pressing reaches the bottom and the lifting member 20 is released, the lifting member 20 pops up from the support member 10, and then under the action of the locking assembly, the lifting member 20 is locked in the open state. Then, when the lifting member 20 is pressed for the second time, the lifting member 20 compresses the lifting elastic member 30. When the pressing reaches the bottom and the lifting member 20 is released, the lifting member 20 also pops up upward from the support member 10, and then under the action of the locking assembly, the lifting member 20 is locked in the closed state. Among them, the height at which the lifting member 20 pops up upward during the first press is higher than the height at which the lifting member 20 pops up upward during the second press.

[0043] The structure of the power assembly in the prior art is complex and difficult to install. To solve this problem, in this embodiment, as Figures 1 to 3 shown, the locking assembly includes: a chute 41 and a fitting 42. The chute 41 is disposed on the outer wall of the lifting member 20. The chute 41 has a first locking structure and a second locking structure therein. The connecting end of the fitting 42 is connected to the support member 10, and the free end of the fitting 42 extends into the chute 41. Among them, when the free end cooperates with the first locking structure, the locking assembly is in the first locking position, and when the free end cooperates with the second locking structure, the locking assembly is in the second locking position. When the lifting member 20 is pressed, the free end of the fitting 42 can slide in the chute 41. The structure of the connecting mechanism is simple, convenient for installation, and improves the installation efficiency. There are three locking assemblies. Of course, the number of locking assemblies can also be selected according to specific circumstances and is not limited thereto.

[0044] In this embodiment, the chute 41 includes a first groove section 411, a second groove section 412, a third groove section 413, and a fourth groove section 414 connected in sequence. The first groove section 411, the second groove section 412, the third groove section 413, and the fourth groove section 414 enclose a heart shape, that is In this state, the third groove section 413 is symmetrically arranged with the second groove section 412, and the fourth groove section 414 is symmetrically arranged with the first groove section 411. A second locking structure is provided at the connection between the second groove section 412 and the third groove section 413, and a first locking structure is provided at the connection between the fourth groove section 414 and the first groove section 411. When the lifting member 20 is in the closed state, the second locking structure cooperates with the free end of the fitting 42. When the lifting member is in the open state, the first locking structure cooperates with the free end of the fitting 42. When the lifting member 20 is switched from the closed state to the open state, when the lifting member 20 is pressed, the free end of the fitting 42 moves from the connection between the second groove section 412 and the third groove section 413 along the third groove section 413 to the connection between the third groove section 413 and the fourth groove section 414. When the lifting member 20 is released, under the action of the lifting elastic member 30, the free end of the fitting 42 moves from the connection between the third groove section 413 and the fourth groove section 414 along the fourth groove section 414 to the connection between the fourth groove section 414 and the first groove section 411, and the first locking structure cooperates with the free end of the fitting 42. When the lifting member 20 is switched from the open state to the closed state, when the lifting member 20 is pressed, the free end of the fitting 42 moves from the connection between the fourth groove section 414 and the first groove section 411 along the first groove section 411 to the connection between the first groove section 411 and the second groove section 412. When the lifting member 20 is released, under the action of the lifting elastic member 30, the free end of the fitting 42 moves from the connection between the first groove section 411 and the second groove section 412 along the second groove section 412 to the connection between the second groove section 412 and the third groove section 413, and the second locking structure cooperates with the free end of the fitting 42.

[0045] In this embodiment, a first step 415 is formed at the connection between the bottom surface of the fourth groove section 414 and the bottom surface of the first groove section 411. The first step 415 forms the first locking structure, which has a simple structure and is convenient for processing and manufacturing. A second step 416 is formed at the connection between the bottom surface of the second groove section 412 and the bottom surface of the third groove section 413. The second step 416 forms the second locking structure, which has a simple structure and is convenient for processing and manufacturing. Steps are also formed at the connection between the bottom surface of the first groove section 411 and the second groove section 412 and at the connection between the bottom surface of the third groove section 413 and the bottom surface of the fourth groove section 414. The steps play a role in limiting, ensuring that the free end of the fitting of the released lifting member moves along the fourth groove section 414 or the second groove section 412.

[0046] In this embodiment, the groove depths of the first groove section 411, the second groove section 412, the third groove section 413 and the fourth groove section 414 gradually become shallower in the counterclockwise direction, facilitating the formation of a step. When the lifting member 20 switches between the open state and the closed state, the free end of the fitting 42 moves in the counterclockwise direction in the chute. Of course, the groove depths of the first groove section 411, the second groove section 412, the third groove section 413 and the fourth groove section 414 gradually become shallower in the clockwise direction. At this time, when the lifting member 20 switches between the open state and the closed state, the free end of the fitting 42 moves in the clockwise direction in the chute.

[0047] In this embodiment, the outer wall of the lifting member 20 has a first vertical wall 261, the chute 41 is provided on the first vertical wall 261, the supporting member 10 has a second vertical wall 151 that cooperates with the first vertical wall 261, and the fitting 42 is provided on the second vertical wall 151, ensuring that the free end of the fitting is always in contact with the bottom of the chute, and simplifying the structure of the fitting.

[0048] In this embodiment, the fitting 42 is connected to the outer wall of the supporting member 10. The supporting member 10 has an avoidance opening 11 for avoiding the movement of the free end of the fitting 42, which facilitates the installation of the fitting and also simplifies the structure. The area of the avoidance opening 11 is larger than the area enclosed by the outer contour of the chute. Specifically, the fitting 42 includes an L-shaped section 421, and the short section of the L-shaped section 421 forms the free end, which has a simple structure and is convenient for processing. The fitting 42 further includes a spiral section 422 connected to the long section of the L-shaped section 421. The spiral section 422 forms a connection end, that is, the fitting is a spring, which is convenient to use and has a low cost. Of course, the spiral section 422 can also be replaced by an arc section.

[0049] In this embodiment, as Figure 3 and Figure 4 shown, the supporting member 10 has a connection structure 50, and the spiral section 422 is sleeved on the connection structure 50. Since the groove depth of each groove section of the chute changes continuously, when the short section slides in the chute, the spiral section 422 can move back and forth on the connection structure 50 in a direction perpendicular to the lifting direction of the lifting member. Specifically, the connection structure 50 includes two oppositely arranged connecting rods 51, and a limit protrusion 511 is provided on the outer wall of the end of each connecting rod 51 away from the supporting member 10. The limit protrusion 511 plays a role in limiting the spiral section to prevent the spiral section from slipping out, making the fixation more firm and reliable. The connection structure 50 is located below the avoidance opening.

[0050] In this embodiment, the connecting structure 50 further includes a fixing post 52. The first end of the fixing post 52 is fixed on the supporting member 10, and one ends of the two connecting rods 51 facing the supporting member 10 are fixed on the second end of the fixing post 52. The fixing post 52 is perpendicular to the second vertical wall. At this time, the connecting rods form suspension rods. When installing the spiral section, the suspension rods are deformed under the extrusion of the spiral section, which is convenient for installation. Of course, the fixing post 52 may not be provided.

[0051] In this embodiment, a guiding structure for guiding the lifting of the lifting member 20 is provided between the lifting member 20 and the supporting member 10, so that the lifting member 20 moves more smoothly, ensuring the stability when the lifting member rises or falls. Specifically, the guiding structure includes guiding posts 21 provided on the outer wall of the lifting member 20 and guiding grooves provided on the inner wall of the supporting member 10, and the guiding grooves cooperate with the guiding posts 21. There are three guiding structures. Of course, the number of guiding structures can also be selected according to specific situations and is not limited to this.

[0052] In this embodiment, as Figure 5 and Figure 6 shown, a switch 60 is provided on the supporting member 10. The switch 60 has a pressing portion 61. The lifting member 20 has a driving structure that cooperates with the pressing portion 61 of the switch 60 and an avoiding structure that avoids the pressing portion 61. When the lifting member 20 is in the open state, the driving structure cooperates with the pressing portion 61. When the lifting member 20 is in the closed state, the avoiding structure cooperates with the pressing portion 61. The switch 60 controls the opening or closing of the whole machine. The lifting of the lifting member is linked with the switch. When the lifting member opens the air outlet, the whole machine is turned on. When the lifting member closes the air outlet, the whole machine is turned off. Only by pressing the lifting can the whole machine be opened and closed and the lifting member be lifted. Specifically, the driving structure is a driving inclined surface 22, and the avoiding structure is an avoiding groove 23 extending in the vertical direction. The driving inclined surface 22 is formed on the groove wall of the avoiding groove 23. At this time, the pressing portion 61 faces the lifting member. When the lifting member rises to a specific position, the driving inclined surface 22 presses the pressing portion 61 of the switch, and the switch is turned on, and the whole machine is turned on. When the lifting member descends to a specific position, the driving inclined surface 22 disengages from the pressing portion 61 of the switch, and the switch is turned off, and the whole machine is turned off.

[0053] In this embodiment, the air outlet is formed on the top of the supporting member 10. The lifting member 20 is disposed in the supporting member 10 in a liftable manner. The edge of the upper part of the lifting member 20 cooperates with the inner edge of the upper part of the supporting member. The opening and closing of the air outlet are realized by the lifting of the lifting member. Of course, the air outlet can also be provided at other positions of the supporting member or on the lifting member.

[0054] In this embodiment, as Figure 1 、 Figure 5 and Figure 7As shown in the figure, the support member 10 includes an outer cylinder 13, a middle cylinder 14 connected inside the outer cylinder 13, and an inner cylinder 15 connected to the lower end of the middle cylinder 14. The outer diameter of the middle cylinder 14 gradually decreases from top to bottom. An air outlet duct is formed between the upper part of the lifting member 20 and the outer cylinder 13 and the middle cylinder 14. The lower part of the lifting member 20 cooperates with the inner cylinder 15. The middle cylinder 14 plays a role in guiding the flow, facilitating the outflow of the air flow. In this embodiment, the support member 10 further includes a ring body 16 connected to the lower end of the middle cylinder 14 and the upper end of the inner cylinder 15. The ring body 16 is provided with air outlet through holes 161. The air flow flows into the air outlet duct through the air outlet through holes 161 and then flows out through the air outlet. The middle cylinder 14 is formed by rotating a curved line arched towards the lifting member around the vertical axis by 360°, and the flow guiding effect is better. Of course, the middle cylinder 14 can also be a conical cylinder.

[0055] In this embodiment, the support member 10 further includes a support ring 17 connected to the lower end of the inner cylinder 15. The support ring 17 is used to support the lifting elastic member 30.

[0056] In this embodiment, the lifting member is in an umbrella shape. Specifically, the lifting member 20 includes an umbrella surface 24, an upper cylinder 25 connected to the umbrella surface 24, and a lower cylinder 26 connected to the lower end of the upper cylinder 25. The outer diameter of the upper cylinder 25 gradually decreases from top to bottom. The upper cylinder 25 cooperates with the outer cylinder 13 and the middle cylinder 14, and the lower cylinder 26 cooperates with the inner cylinder 15. The upper cylinder 25 plays a role in guiding the flow, facilitating the outflow of the air flow. The upper cylinder 25 is formed by rotating a curved line arched towards the umbrella surface 24 around the vertical axis by 360°, and the flow guiding effect is better. Of course, the upper cylinder 25 can also be a conical cylinder.

[0057] In this embodiment, the support member 10 further includes a connecting ring and a first straight cylinder 19 connected between the upper end of the outer cylinder and the upper end of the middle cylinder. The lifting member 20 further includes a second straight cylinder 28 connected between the umbrella surface 24 and the upper cylinder 25. The outer wall of the second straight cylinder 28 cooperates with the inner wall of the first straight cylinder 19, and the height of the second straight cylinder 28 is less than the height of the first straight cylinder 19, which is convenient for pressing the lifting member in the closed state.

[0058] In this embodiment, the lifting elastic member 30 abuts between the bottom of the support member 10 and the bottom of the lifting member 20, which is convenient for assembly and improves the assembly efficiency. Specifically, the lifting elastic member 30 is a spring, which is convenient to use and has a low cost. Of course, the lifting elastic member can also be an elastic sleeve.

[0059] In this embodiment, the bottom of the lifting member 20 has a downward protruding lower limit boss 27, and the bottom of the support member 10 has an upward protruding upper limit boss 18. The upper end of the lifting elastic member 30 is sleeved on the lower limit boss 27, and the lower end of the lifting elastic member 30 is sleeved on the upper limit boss 18. The upper and lower ends of the lifting elastic member 30 are fixed by the two limit bosses.

[0060] In this embodiment, the outer cylinder 13, the inner cylinder 15, and the lower cylinder 26 are all cylindrical. The three guide posts 21 are uniformly arranged on the outer wall of the lower cylinder 26 and the outer wall of the upper cylinder 25 along the circumferential direction of the lower cylinder, and the three guide grooves are uniformly distributed along the circumferential direction of the inner cylinder 15. The outer wall of the lower cylinder 26 has a first vertical wall 261, and the inner cylinder 15 has a second vertical wall 151. The inner cylinder 15 has an outwardly protruding arc-shaped wall 152, and the arc-shaped wall 152 encloses the guide groove. The lower limit boss 27 is arranged on the bottom of the guide post 21, and the upper limit boss 18 is arranged on the support ring 17. The avoidance groove 23 is arranged on the outer wall of the lower cylinder 26.

[0061] In this embodiment, components such as the display board are installed inside the lifting member.

[0062] As an alternative embodiment, the connecting mechanism is an internal thread provided on the support member and an external thread provided on the lifting member. The external thread cooperates with the internal thread, and the user rotates the lifting member to realize the lifting of the lifting member. Of course, the connecting mechanism can also be a gear-rack mechanism or other mechanisms that can be manually lifted, and is not limited thereto.

[0063] As an alternative embodiment, the locking assembly includes a guide rail, a rotating claw sleeve, and a guide groove. The guide rail is arranged on the support member, the guide groove is arranged on the lifting member, the upper end of the rotating claw sleeve cooperates with the lower end of the lifting member, the lower end of the rotating claw sleeve abuts against the upper end of the elastic member, and the lower end of the elastic member abuts against the bottom of the support member, that is, the locking assembly adopts the locking structure on a ballpoint pen. Of course, the locking assembly can also adopt other types of locking structures on a ballpoint pen.

[0064] As an alternative embodiment, the guide post can also be arranged on the support member, and at this time the guide groove is arranged on the lifting member.

[0065] As an alternative embodiment, the ring body is not provided, and at this time the air outlet through hole is arranged on the middle cylinder.

[0066] As an alternative embodiment, the second vertical wall is not provided.

[0067] The present invention also provides an air purifier, which includes the above-mentioned lifting structure. When the lifting member rises, the air outlet is opened, and the air purified by the purifier is blown out from the air outlet; when the lifting member descends, the air outlet is closed, which can effectively prevent pollutants in the environment from naturally settling into the purifier, and further prevent the pollutants entering the purifier when the machine is restarted from being blown out by the wind and causing secondary pollution.

[0068] In this embodiment, the air purifier includes a housing, and the support member is a part of the housing.

[0069] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0070] 1. The lifting component and the supporting component are connected by an elastic locking mechanism. When pressed for the first time, the lifting component pops out from the casing to open the air outlet. When pressed for the second time, the lifting component returns to its original position to close the air outlet, that is, to seal the air outlet. The user only needs to press the lifting component to realize the lifting of the lifting component, without the need for an additional power component. The structure is simple, the installation is convenient, and the cost is relatively low, solving the problems of complex assembly of the power component, high cost and inability of the lifting head component to automatically reset during a power outage in the prior art.

[0071] 2. The lifting of the lifting component is linked with the switch of the whole machine, that is, when the lifting component pops out, the whole machine is turned on, and when the lifting component is reset, the whole machine is turned off, realizing the on / off key of the whole machine.

[0072] Obviously, the above embodiments are only examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A lifting structure, characterized in that, Comprising: A support member (10); A lifting member (20), which is liftably arranged on the support member (10), and the lifting member (20) has an open state for opening the air outlet and a closed state for closing the air outlet; A connection mechanism, under the action of an external force, the lifting member (20) is switched between the open state and the closed state through the connection mechanism; The air outlet is formed on the top of the support member (10), and the lifting member (20) is liftably arranged within the support member (10); The support member (10) includes an outer cylinder (13), a middle cylinder (14) connected within the outer cylinder (13), and an inner cylinder (15) connected to the lower end of the middle cylinder (14). The outer diameter of the middle cylinder (14) gradually decreases from top to bottom. An air outlet duct is formed between the upper part of the lifting member (20) and the outer cylinder (13) and the middle cylinder (14), and the lower part of the lifting member (20) cooperates with the inner cylinder (15); The support member (10) further includes an annular body (16) connected to the lower end of the middle cylinder (14) and the upper end of the inner cylinder (15), and an air outlet through-hole (161) is provided on the annular body (16); The lifting member (20) includes an umbrella surface (24), an upper cylinder (25) connected to the umbrella surface (24), and a lower cylinder (26) connected to the lower end of the upper cylinder (25). The outer diameter of the upper cylinder (25) gradually decreases from top to bottom. The upper cylinder (25) cooperates with the outer cylinder (13) and the middle cylinder (14), and the lower cylinder (26) cooperates with the inner cylinder (15).

2. The lifting structure according to claim 1, wherein, The connection mechanism includes: A lifting elastic member (30), which is arranged between the support member (10) and the lifting member (20); A locking assembly, which has a first locking position for locking the lifting member (20) in the open state and a second locking position for locking the lifting member (20) in the closed state. Under the action of the external force and the lifting elastic member (30), the locking assembly is switched between the first locking position and the second locking position.

3. The lifting structure according to claim 2, wherein, The locking assembly includes: A sliding groove (41), which is arranged on the outer wall of the lifting member (20), and the sliding groove (41) has a first locking structure and a second locking structure; A cooperating member (42), the connecting end of the cooperating member (42) is connected to the support member (10), and the free end of the cooperating member (42) extends into the sliding groove (41); Wherein, when the free end cooperates with the first locking structure, the locking assembly is in the first locking position, and when the free end cooperates with the second locking structure, the locking assembly is in the second locking position.

4. The lifting structure according to claim 3, wherein The chute (41) includes a first groove section (411), a second groove section (412), a third groove section (413), and a fourth groove section (414) connected in sequence. The first groove section (411), the second groove section (412), the third groove section (413), and the fourth groove section (414) enclose a heart shape. The third groove section (413) and the second groove section (412), and the fourth groove section (414) and the first groove section (411) are symmetrically arranged. A second locking structure is provided at the connection between the second groove section (412) and the third groove section (413), and a first locking structure is provided at the connection between the fourth groove section (414) and the first groove section (411).

5. The lifting structure according to claim 4, wherein A first step (415) is formed at the connection between the bottom surface of the fourth groove section (414) and the bottom surface of the first groove section (411). The first step (415) forms the first locking structure, and / or a second step (416) is formed at the connection between the bottom surface of the second groove section (412) and the bottom surface of the third groove section (413). The second step (416) forms the second locking structure, and / or the groove depths of the first groove section (411), the second groove section (412), the third groove section (413), and the fourth groove section (414) gradually become shallower in the counterclockwise direction.

6. The lifting structure according to claim 3, characterized in that The outer wall of the lifting member (20) has a first vertical wall. The chute (41) is provided on the first vertical wall. The support member (10) has a second vertical wall that cooperates with the first vertical wall. The fitting (42) is provided on the second vertical wall, and / or the fitting (42) is connected to the outer wall of the support member (10). The support member (10) has an avoidance opening (11) that avoids the movement of the free end of the fitting (42), and / or the fitting (42) includes an L-shaped section (421). The short section of the L-shaped section (421) forms the free end.

7. The lifting structure according to claim 6, wherein, When the fitting (42) includes the L-shaped section (421), the fitting (42) further includes a spiral section (422) connected to the long section of the L-shaped section (421). The spiral section (422) forms the connection end.

8. The lifting structure according to claim 7, wherein A connection structure (50) is provided on the support member (10). The spiral section (422) is sleeved on the connection structure (50).

9. The lifting structure according to claim 8, characterized in that The connection structure (50) includes two oppositely arranged connecting rods (51). The outer wall of each connecting rod (51) at the end far from the support member (10) has a limit protrusion (511).

10. The lifting structure according to claim 9, characterized in that, The connection structure (50) further includes a fixing column (52). The first end of the fixing column (52) is fixed to the support member (10). The ends of the two connecting rods (51) facing the support member (10) are fixed to the second end of the fixing column (52).

11. The lifting structure according to any one of claims 1 to 10, characterized in that A guiding structure for guiding the lifting of the lifting member (20) is provided between the lifting member (20) and the support member (10).

12. The lifting structure according to claim 11, wherein, The guiding structure includes a guiding post (21) arranged on the outer wall of the lifting member (20) and a guiding groove arranged on the inner wall of the supporting member (10), and the guiding groove is engaged with the guiding post (21).

13. The lifting structure according to any one of claims 1 to 10, characterized in that, A switch (60) is arranged on the supporting member (10), the switch (60) has a pressing part (61), the lifting member (20) is provided with a driving structure engaged with the pressing part (61) of the switch (60) and an avoiding structure for avoiding the pressing part (61). When the lifting member (20) is in the open state, the driving structure is engaged with the pressing part (61); when the lifting member (20) is in the closed state, the avoiding structure is engaged with the pressing part (61).

14. The lifting structure according to claim 13, wherein, The driving structure is a driving inclined surface (22), the avoiding structure is an avoiding groove (23) extending in the vertical direction, and the driving inclined surface (22) is formed on the groove wall of the avoiding groove (23).

15. The lifting structure according to claim 1, wherein, The supporting member (10) further includes a supporting ring (17) connected to the lower end of the inner cylinder (15).

16. The lifting structure according to any one of claims 2 to 10, characterized in that, The lifting elastic member (30) abuts between the bottom of the supporting member (10) and the bottom of the lifting member (20).

17. The lifting structure according to claim 16, characterized in that, The bottom of the lifting member (20) has a downward protruding lower limit boss (27), the bottom of the supporting member (10) has an upward protruding upper limit boss (18), the upper end of the lifting elastic member (30) is sleeved on the lower limit boss (27), and the lower end of the lifting elastic member (30) is sleeved on the upper limit boss (18).

18. An air purifier, characterized in that, Comprising: The lifting structure according to any one of claims 1 to 17.

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