Air nozzle for blower

Abstract

The utility model relates to the technical field of life electric appliances, in particular to an air nozzle for an air blower, which comprises an air nozzle body with an air duct, the air nozzle body is provided with a front end and a rear end in the extending direction of the air duct, the rear end is used for connecting an air cylinder of the air blower, and the air nozzle further comprises a telescopic rod piece, a temperature detector which can be electrically connected with a controller of the hair dryer is arranged at the other end of the telescopic rod piece, and the telescopic rod piece can extend to enable the temperature detector to exceed the front end and extend into hair. By arranging the telescopic rod piece, one end of the telescopic rod piece is arranged on the tuyere body, the other end of the telescopic rod piece is provided with the temperature detector which can be electrically connected with the controller of the hair dryer, and the telescopic rod can extend to enable the temperature detector to exceed the front end of the tuyere body and extend into the hair, so that the temperature of the inner-layer hair can be detected, and the temperature of the inner-layer hair is not easily interfered by the environment; the temperature detection device is not influenced by the using posture of the blower, the temperature detection accuracy can be improved, and the cost can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, and in particular to a nozzle for a hair dryer. BACKGROUND

[0002] A hair dryer is one of the frequently used appliances in people's daily life, and its main functions include drying and styling. Regardless of drying or styling, temperature feedback of hair is usually required to control the hair dryer.

[0003] At present, the hair dryer detects the temperature of hair usually by using an infrared temperature measurement scheme. The infrared temperature measurement has a high cost, and is easily disturbed by the environment. When the ambient temperature or the dust concentration in the air changes, the collected temperature will have a large fluctuation. In addition, the infrared temperature measurement requires the hair dryer to be used vertically to the hair, and when the hair dryer has a large inclination angle, the temperature measurement accuracy is affected, and thus the accuracy of subsequent calculation is affected. Furthermore, the infrared temperature measurement can only collect the temperature of the surface layer of hair, and cannot collect the temperature of the inner layer of hair, which has certain limitations.

[0004] Therefore, there is an urgent need for a nozzle for a hair dryer to solve the above problems. CONTENT OF THE INVENTION

[0005] In order to solve the above technical problems, the present application provides a nozzle for a hair dryer to measure the temperature inside the hair and improve the measurement accuracy.

[0006] The present application provides a nozzle for a hair dryer, which comprises a nozzle body having an air duct, the nozzle body has a front end and a rear end in the extension direction of the air duct, the rear end is used to connect the air cylinder of the hair dryer, and further comprises an extension rod, one end of the extension rod is arranged on the nozzle body, and the other end is provided with a temperature detector capable of being electrically connected with a controller of the hair dryer, and the extension rod can be extended so that the temperature detector exceeds the front end and extends into the hair.

[0007] In some embodiments, a sliding groove is formed on the nozzle body, the extension rod is slidingly arranged in the sliding groove, and the extension rod moves in the sliding groove in a first direction to have a synchronous position and a misaligned position;

[0008] When the extension rod is at the misaligned position, the extension rod is located on one side of the air outlet of the air duct in the first direction; and when the extension rod is at the synchronous position, the extension rod is located at a middle position of the air outlet in the first direction.

[0009] The first direction is perpendicular to the axis direction of the extension rod, and the air duct extends along the axis direction of the extension rod.

[0010] In some embodiments, a sliding groove is formed on the air nozzle body, and the air nozzle further comprises a sliding member arranged in the sliding groove;

[0011] One end of the telescopic rod member is rotatably connected to the sliding member and has a first position relative to the air nozzle body, the telescopic rod member extends in a second direction at the first position and can be elongated to make the temperature detector exceed the front end.

[0012] In some embodiments, the sliding member is rotatably arranged in the sliding groove;

[0013] The telescopic rod member has a second position relative to the air nozzle body, the telescopic rod member extends in a third direction at the second position, and the sliding member can drive the telescopic rod member to rotate to be accommodated in the sliding groove;

[0014] The second direction intersects the third direction.

[0015] In some embodiments, a plurality of first limiting grooves are arranged at intervals on the bottom surface of the sliding groove along the extension direction thereof;

[0016] A first limiting column is elastically arranged on the sliding member, and the sliding member moves in the sliding groove to make the first limiting column insertable or extractable from the first limiting groove.

[0017] In some embodiments, the telescopic rod member comprises a connecting rod, a telescopic rod and a mounting rod, the connecting rod is connected to the air nozzle body, and the mounting rod is mounted with the temperature detector;

[0018] The connecting rod and the mounting rod can move relative to the telescopic rod to elongate or shorten the telescopic rod member.

[0019] In some embodiments, a switch member and a contact block are further included, one of the switch member and the contact block is arranged on the telescopic rod, and the other is arranged on the mounting rod;

[0020] The contact block has a closed position in contact with the switch member and an open position out of contact with the switch member;

[0021] At the open position of the contact block, the mounting rod and the telescopic rod are in a fully elongated state, and the switch member is open to control the hair dryer to adjust the temperature according to the temperature detected by the temperature detector.

[0022] In some embodiments, a rear end of the air nozzle body is provided with a first conductive element electrically connected with the temperature detector, the first conductive element is configured to be conductive with a second conductive element on the air cylinder to make the temperature detector transmit a temperature signal.

[0023] In some embodiments, one of the first conductive element and the second conductive element is a ring-shaped structural member, and the other is a conductive contact or a ring-shaped structural member.

[0024] In some embodiments, a filter screen assembly is further included, the filter screen assembly comprising a filter screen support and a filter screen arranged on the filter screen support, the filter screen assembly being arranged in the air duct and located at the front end of the air nozzle body.

[0025] Compared with the prior art, the technical scheme provided by the embodiments of the present application has the following advantages:

[0026] The air nozzle for hair dryer, by setting the air nozzle body and the telescopic rod, the air nozzle body has the air duct, and has the front end and the rear end in the extension direction of the air duct, the telescopic rod is arranged on the air nozzle body at one end, and the temperature detector capable of being electrically connected with the controller of the hair dryer is arranged at the other end, the telescopic rod can be elongated to make the temperature detector exceed the front end of the air nozzle body and extend into the hair, so that the temperature of the inner layer hair can be detected, and the detection accuracy can be improved, and the cost can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings incorporated in the specification and forming a part thereof illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative labor.

[0029] Figure 1 Structure diagram of the air nozzle for hair dryer described in the embodiments of the present application Figure One ;

[0030] Figure 2 Structure diagram of the air nozzle for hair dryer described in the embodiments of the present application Figure Two ;

[0031] Figure 3 Sectional view diagram of the air nozzle for hair dryer described in the embodiments of the present application

[0032] Figure 4 Partial sectional view diagram of the air nozzle for hair dryer described in the embodiments of the present application

[0033] Figure 5 is Figure 4 Partial enlarged view diagram of A in FIG. 8

[0034] Figure 6 A top view of a chute according to an embodiment of the present application;

[0035] Figure 7 A rotating structure of a sliding member and a telescopic rod according to an embodiment of the present application;

[0036] Figure 8 A structure of a telescopic rod according to an embodiment of the present application (in a contracted state);

[0037] Figure 9 A structure of a telescopic rod according to an embodiment of the present application (in an extended state);

[0038] Figure 10 A cooperation of a connecting rod and a telescopic rod of a telescopic rod according to an embodiment of the present application;

[0039] Figure 11 A Figure 10 A partial enlarged view of B;

[0040] Figure 12 A cooperation of a mounting rod and a telescopic rod of a telescopic rod according to an embodiment of the present application;

[0041] Figure 13 A Figure 12 A partial enlarged view of C;

[0042] Figure 14 An electrical connection structure of a nozzle for a hair dryer and a wind tube of the hair dryer according to an embodiment of the present application;

[0043] Figure 15 A side view of a nozzle body according to an embodiment of the present application;

[0044] Figure 16 A side view of a wind tube of a hair dryer according to an embodiment of the present application;

[0045] Figure 17 A top view of a filter screen assembly according to an embodiment of the present application;

[0046] Figure 18 A partial sectional view of a nozzle of a hair dryer according to an embodiment of the present application.

[0047] Wherein, 10, a nozzle for a hair dryer; 20, a wind tube; 201, a second conductive element; 202, a plug-in slot;

[0048] 1, a nozzle body; 11, an air duct; 12, a chute; 121, a first limiting slot; 13, a first conductive element; 14, a plug-in column; 15, an assembly slot;

[0049] 2, telescopic rod; 21, connecting rod; 211, second limiting groove; 212, second rotating shaft seat; 22, telescopic rod; 221, second limiting column; 222, second elastic member; 223, second assembly channel; 224, third limiting column; 225, third elastic member; 226, third assembly channel; 23, mounting rod; 231, third limiting groove;

[0050] 3, temperature detector;

[0051] 4, sliding piece; 41, first limiting column; 42, first elastic member; 43, first assembly channel; 44, first rotating shaft seat;

[0052] 5, switch piece;

[0053] 6, contact block;

[0054] 7, filter screen assembly; 71, filter screen support; 711, positioning column; 72, filter screen;

[0055] 8, rotating shaft;

[0056] 9, nut. DETAILED DESCRIPTION

[0057] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the following will further describe the solutions of the present application. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0058] In the following description, many specific details are set forth in order to fully understand the present application, but the present application can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some of the embodiments of the present application, not all the embodiments.

[0059] Reference Figure 1 and Figure 2 The embodiments of the present application provide a nozzle 10 for hair dryer, which comprises a nozzle body 1 with an air duct 11, the nozzle body 1 has a front end and a rear end in the extension direction of the air duct 11, and the rear end is used to connect the air cylinder 20 of the hair dryer.

[0060] The nozzle 10 for hair dryer further comprises a telescopic rod 2, one end of the telescopic rod 2 is arranged on the nozzle body 1, and the other end is provided with a temperature detector 3 capable of being electrically connected with the controller of the hair dryer, and the telescopic rod 2 can be elongated to make the temperature detector 3 exceed the front end of the nozzle body 1 and extend into the hair.

[0061] Understandably, the hair dryer nozzle 10 can make the temperature detector 3 extend into the hair by the extension of the telescopic rod 2, so as to collect the temperature of the inner layer of the hair, avoid environmental interference, and reduce the requirement for the use posture of the hair dryer, and improve the accuracy of temperature measurement. Moreover, the telescopic rod 2 also defines the minimum safe distance from the air outlet to the hair, so as to avoid the user from being scalded.

[0062] In addition, the temperature detector 3 directly enters the hair to measure the temperature, which can improve the temperature accuracy while reducing the temperature measurement cost. In addition, the telescopic rod 2 can also shorten the temperature detector 3 to be located inside the front end of the nozzle body 1, so as to facilitate the storage of the hair dryer nozzle 10.

[0063] It should be noted that the temperature detector 3 can be selected as a temperature sensor, such as a thermistor sensor, or can also be selected as other types of temperature sensors, such as a thermal resistance sensor.

[0064] In some embodiments, the nozzle body 1 is provided with a sliding groove 12, and the telescopic rod 2 is slidingly arranged in the sliding groove 12. The telescopic rod 2 has a synchronous position and a misaligned position in the sliding groove 12 in the first direction. When the telescopic rod 2 is in the misaligned position, the telescopic rod 2 is located on one side of the air outlet of the air duct 11 in the first direction. When the telescopic rod 2 is in the synchronous position, the telescopic rod 2 is located in the middle position of the air outlet of the air duct 11 in the first direction.

[0065] The first direction is perpendicular to the axis direction of the telescopic rod 2, and the air duct 11 extends along the axis direction of the telescopic rod 2.

[0066] Understandably, by arranging the sliding groove 12 and slidingly arranging the telescopic rod 2 in the sliding groove 12, the position of the telescopic rod 2 in the sliding groove 12 can be changed to meet different temperature measurement requirements.

[0067] Specifically, when the telescopic rod 2 is in the misaligned position, if the nozzle body 1 moves in the first direction, since the telescopic rod 2 is located on one side of the air outlet in the first direction, the temperature detector 3 is located on the front side of the air outlet, so that the temperature detector 3 measures the temperature of the hair in a certain area first, and then the air outlet of the air duct 11 blows the hair in the area, or the temperature detector 3 is located on the rear side of the air outlet, so that the air outlet of the air duct 11 blows the hair in a certain area first, and then the temperature detector 3 measures the temperature of the hair in the area.

[0068] When the telescopic rod 2 is in the synchronous position, the temperature detector 3 is located at the middle position of the air outlet of the air duct 11 in the first direction. At this time, when the air nozzle body 1 moves in the first direction, the temperature detector 3 and the air outlet of the air duct 11 can pass through the hair of a certain area at the same time, so that the temperature detector 3 can detect the temperature of the hair of the area blown by the air outlet of the air duct 11 in real time.

[0069] For example, referring to Figure 1 , taking the first direction as the vertical direction, at this time, the axis direction of the telescopic rod 2 is the horizontal direction, the horizontal direction is the X direction in Figure 1 , and the vertical direction is the Y direction shown in Figure 1 .

[0070] In the first case, referring to Figure 1 , the telescopic rod 2 is in the misaligned position, at this time, the telescopic rod 2 is located on the upper side of the air outlet in the vertical direction, that is, the temperature detector 3 is located on the upper side of the air outlet in the vertical direction. If the air nozzle body 1 moves from top to bottom for blowing, the temperature detector 3 is located on the rear side of the moving direction of the air outlet; if the air nozzle body 1 moves from bottom to top for blowing, the temperature detector 3 is located on the front side of the moving direction of the air outlet.

[0071] In the second case, referring to Figure 2 , the telescopic rod 2 is in the synchronous position, at this time, the telescopic rod 2 is located at the middle position of the air duct 11 in the vertical direction, that is, the temperature detector 3 is located at the middle position of the air duct 11 in the vertical direction. In this way, when the air nozzle body 1 moves up and down, the temperature detector 3 can detect the temperature of the hair of the area blown by the air outlet of the air duct 11 in real time.

[0072] It should be noted that the temperature detector 3 is located outside the air duct 11. In this way, when the temperature detector 3 is located at the middle position of the air outlet in the first direction, it is also located outside the air outlet, but only aligned with the center of the air outlet in the first direction, at this time, the projection of the part of the telescopic rod 2 parallel to the reference plane in the first direction is located within the projection range of the air outlet parallel to the reference plane in the first direction, so that the temperature detector 3 is located at the middle position of the air duct 11.

[0073] In addition, the above-mentioned sliding groove 12 can be an annular sliding groove extending along the circumference of the air nozzle body 1, or the sliding groove 12 has end portions limiting the telescopic rod 2 at both ends in the extension direction, that is, the two ends of the sliding groove 12 in the extension direction are not connected, such as an arc-shaped groove or a straight line type groove.

[0074] For example, in a specific implementation, referring to Figure 1 and Figure 2The chute 12 is linear, and the length of the chute 12 is greater than the length of the air outlet in the extension direction of the chute 12. The center of the chute 12 in the first direction is aligned with the center of the air outlet in the first direction. Thus, when the telescopic rod 2 is at least at one end in the extension direction of the chute 12, the temperature detector 3 is located on one side of the air outlet of the air duct 11 in the first direction.

[0075] The air outlet can be a circular air outlet, an oval air outlet, or a strip-shaped air outlet. In this case, the extension direction of the chute 12 can be the length or width direction of the air outlet. When the air outlet is a circular air outlet, the maximum length and the maximum width of the air outlet are the same.

[0076] Referring to Figure 1 , Figure 3 and Figure 4 , the air nozzle body 1 is provided with a chute 12, and the air nozzle 10 further comprises a sliding member 4 arranged in the chute 12. One end of the telescopic rod 2 is rotatably connected to the sliding member 4, and the telescopic rod 2 has a first position relative to the air nozzle body 1. The telescopic rod 2 extends in the second direction at the first position, and can be elongated to make the temperature detector 3 beyond the front end of the air nozzle body 1.

[0077] Understandably, the telescopic rod 2 changes position by moving in the chute 12 through the sliding member 4, thereby changing the position of the temperature detector 3 relative to the air outlet of the air duct 11, to achieve different temperature measurement requirements.

[0078] Exemplarily, in a specific implementation, referring to Figure 3 and Figure 4 , the side wall of the chute 12 is provided with a limiting sliding hole moving in the extension direction of the chute 12. The sliding member 4 has a sliding rail part extending into the limiting sliding hole. Thus, when the sliding member 4 moves in the chute 12, the sliding rail part moves in the limiting sliding hole, and the movement of the sliding member 4 can be guided and limited by the limiting sliding hole and the sliding rail part.

[0079] The limiting sliding hole can be provided with two limiting sliding holes, and the two limiting sliding holes are respectively arranged on the opposite side walls in the width direction of the chute 12. Correspondingly, the sliding rail part is provided with two sliding rail parts, and each sliding rail part corresponds to one limiting sliding hole.

[0080] Further, the sliding member 4 is rotatably arranged in the chute 12. The telescopic rod 2 has a second position relative to the air nozzle body 1. The telescopic rod 2 extends in the third direction at the second position, and the sliding member 4 can drive the telescopic rod 2 to rotate to be accommodated in the chute 12. The second direction and the third direction intersect. The sliding member 4 rotates in the chute 12 about an axis extending in the first direction.

[0081] It is understood that the telescopic rod 2 is rotationally connected to the sliding member 4, so that the telescopic rod 2 is located at the first position when it is needed to measure the temperature by the temperature detector 3. When the air nozzle 10 of the hair dryer is stored, the telescopic rod 2 is located at the second position, so that the sliding member 4 is rotated to drive the telescopic rod 2 to be stored in the sliding groove 12, thereby facilitating the storage of the air nozzle 10 of the hair dryer.

[0082] It is to be noted that the telescopic rod 2 is in a retracted state when it is stored in the sliding groove 12. In this way, the telescopic rod 2 can be moved in the sliding groove 12 and can be stored in the sliding groove 12. Of course, the sliding groove 12 can only be used to store the telescopic rod 2 or only be used to adjust the position of the telescopic rod 2 by the sliding member 4.

[0083] It is to be noted that the intersection of the second direction and the third direction means that the second direction and the third direction form a preset angle, and the preset angle is preferably 90°. At this time, the extension direction of the sliding groove 12 and the extension direction of the telescopic rod 2 at the first position, that is, the second direction, are perpendicular to each other. For example, the second direction is a horizontal direction, and the third direction is also a horizontal direction but perpendicular to the second direction. At this time, the sliding groove 12 extends in a vertical direction. Of course, the preset angle can also be less than 90°. At this time, the sliding member 4 has a first set position in the sliding groove 12 at which the temperature detector 3 exceeds the maximum distance from the front end of the nozzle body 1 and a second set position at which the temperature detector 3 exceeds the minimum distance from the front end of the nozzle body 1. In this way, the sliding member 4 is farther away from the air outlet at the first position than at the second position. At this time, the sliding groove 12 is inclined on the nozzle body 1, but extends along the circumference of the nozzle body 1 as a whole.

[0084] For example, referring to Figure 1 Both ends of the sliding groove 12 in the extension direction thereof have end portions for limiting the sliding member 4, and the bottom surface of the sliding groove 12 is a plane. In this way, the telescopic rod 2 can be better stored in the sliding groove 12, so that the telescopic rod 2 can be stored in the sliding groove 12 as much as possible.

[0085] For example, in a specific implementation, referring to Figure 5 and Figure 6 The bottom surface of the sliding groove 12 is provided with a plurality of first limiting grooves 121 spaced apart along the extension direction thereof. The sliding member 4 is elastically provided with a first limiting column 41, and the sliding member 4 is moved in the sliding groove 12 to enable the first limiting column 41 to be inserted into or withdrawn from the first limiting groove 121. At the same time, when the sliding member 4 is rotated in the sliding groove 12, the first limiting column 41 can also be inserted into or withdrawn from the first limiting groove 121 along with the rotation of the sliding member 4.

[0086] It is understandable that the first limiting column 41 and the first limiting slot 121 cooperate to realize the positioning of the sliding piece 4. When the first limiting column 41 is inserted into the first limiting slot 121, the sliding piece 4 is limited by the first limiting column 41 and the first limiting slot 121 and is fixed relative to the sliding groove 12. When it is needed to move the sliding piece 4, an acting force is applied to the sliding piece 4 to make the first limiting column 41 out of the first limiting slot 121, and then the sliding piece 4 is moved. In this process, if a plurality of first limiting slots 121 are passed, the first limiting column 41 will repeatedly insert and out of the first limiting slot 121 until the sliding piece 4 is moved to the required position, the first limiting column 41 is inserted into the corresponding first limiting slot 121 to realize the positioning of the sliding piece 4.

[0087] It should be noted that the first limiting slot 121 is selected as a semispherical recess, and at this time, the first limiting column 41 is provided with a ball head or a semispherical head matched with the semispherical recess, so as to facilitate the entry and exit of the semispherical recess. Moreover, the semispherical recess is smoothly transitioned between the groove surface and the bottom surface of the sliding groove 12.

[0088] Further, the sliding piece 4 is provided with a first assembly channel 43, and the first limiting column 41 is elastically arranged in the first assembly channel 43 through the first elastic piece 42. The first limiting column 41 is compressed in the process of being out of the first limiting slot 121, and the first elastic piece 42 can also apply an acting force to the first limiting column 41 to make the first limiting column 41 inserted into the first limiting slot 121, so as to realize the elastic assembly of the first limiting column 41.

[0089] In this way, the cooperation of the first limiting column 41, the first limiting slot 121 and the first elastic piece 42 realizes the fixation of the sliding piece 4, which is not only convenient to operate, but also is conducive to reducing the cost. Moreover, the insertion of the first limiting column 41 and the first limiting slot 121 can provide a change in the hand feeling, so as to facilitate the user to confirm that the first limiting column 41 has been inserted into the first limiting slot 121.

[0090] It should be noted that the first limiting column 41 is limited in the first assembly channel 43, so as to avoid the first limiting column 41 out of the first assembly channel 43 when being inserted into the first limiting slot 121. For example, the first limiting column is a T-shaped structure, and the width of the opening of the first assembly channel is smaller than the maximum width of the first limiting column, so as to realize the limiting of the first limiting column.

[0091] In addition, the first assembly channel 43 can be provided as penetrating one side surface of the sliding piece 4. After the first limiting column 41 and the first elastic piece 42 are assembled into the first assembly channel 43, the first assembly channel 43 is sealed, so that the first assembly channel 43 only retains the opening for the first limiting column 41 to extend into or out of the first limiting slot 121.

[0092] Exemplarily, in a specific implementation manner, with reference toFigure 7 The sliding member 4 and the telescopic rod member 2 are relatively rotatable and relatively fixed by the pivot 8 and the nut 9.

[0093] The sliding member 4 is provided with two first pivot seats 44 arranged oppositely, and the second pivot seat 212 on the telescopic rod member 2 is located between the two first pivot seats 44. The pivot 8 is arranged through the second pivot seat 212 and the two first pivot seats 44, and one end is limited in one of the first pivot seats 44, and the other end is threadedly connected to the nut 9. By rotating the nut 9, the two first pivot seats 44 can be clamped to the second pivot seat 212, so that the sliding member 4 and the telescopic rod member 2 are relatively fixed. By rotating the nut 9, the two first pivot seats 44 can also be loosened to the second pivot seat 212, and at this time, the position of the telescopic rod member 2 relative to the tuyere body 1 can be adjusted by rotating the second pivot seat 212 around the pivot 8.

[0094] In some embodiments, referring to Figure 8 and Figure 9 , the telescopic rod member 2 includes a connecting rod 21, a telescopic rod 22, and a mounting rod 23. The connecting rod 21 is connected to the tuyere body 1, and the mounting rod 23 is provided with the temperature detector 3. The connecting rod 21 is movable relative to the telescopic rod 22 to lengthen or shorten the telescopic rod member 2, and the mounting rod 23 is movable relative to the telescopic rod 22 to lengthen or shorten the telescopic rod member 2. The connecting rod 21 is rotatably connected to the sliding member 4, and the second pivot seat 212 is arranged on the connecting rod 21 at this time.

[0095] Understandably, the connecting rod 21 is movable relative to the telescopic rod 22, and the mounting rod 23 is also movable relative to the telescopic rod 22. When the connecting rod 21 and the mounting rod 23 are both moved relative to the telescopic rod 22 to lengthen the telescopic rod member 2, the length of the telescopic rod member 2 is the longest. When the connecting rod 21 and the mounting rod 23 are both moved relative to the telescopic rod 22 to shorten the telescopic rod member 2, the length of the telescopic rod member 2 is the shortest. Thus, the length of the telescopic rod member 2 can be adjusted according to actual conditions.

[0096] Exemplarily, in a specific implementation, referring to Figure 10 and Figure 11 , the connecting rod 21 has a first cavity for accommodating the telescopic rod 22, and a plurality of second limiting grooves 211 are arranged on the wall surface of the first cavity along the extension direction of the connecting rod 21. The telescopic rod 22 is elastically provided with a second limiting column 221, and when the telescopic rod 22 is forced to move relative to the connecting rod 21, the second limiting column 221 can be inserted into or out of the second limiting groove 211. The telescopic rod 22 can be accommodated in the first cavity to shorten the length of the telescopic rod member 2, and the telescopic rod 22 can be moved out of the first cavity relative to the connecting rod 21 to lengthen the telescopic rod member 2.

[0097] Understandably, the second limiting column 221 and the second limiting slot 211 cooperate to realize the relative fixation of the connecting rod 21 and the telescopic rod 22. When the second limiting column 221 is inserted into the second limiting slot 211, the telescopic rod 22 is fixed relative to the connecting rod 21 by the second limiting column 221 and the second limiting slot 211. When it is needed to move the telescopic rod 22, an acting force is applied to the telescopic rod 22 or the connecting rod 21 to make the second limiting column 221 out of the second limiting slot 211. The acting force is continuously applied to the telescopic rod 22 or the connecting rod 21 until the telescopic rod 22 is moved to the required position. In this process, if a plurality of second limiting slots 211 are passed, the second limiting column 221 will repeatedly insert and out of the second limiting slot 211.

[0098] It should be noted that the second limiting slot 211 is selected as a semispherical recess. At this time, the second limiting column 221 is provided with a ball head or a semispherical head matched with the semispherical recess, so as to facilitate the entry and exit of the semispherical recess. Moreover, the semispherical recess is smoothly transitioned between the groove surface and the wall surface of the first cavity.

[0099] Further, the telescopic rod 22 is provided with a second assembly channel 223, and the second limiting column 221 is elastically arranged in the second assembly channel 223 by the second elastic member 222. The second limiting column 221 is compressed in the process of being out of the second limiting slot 211, and the second elastic member 222 can also apply an acting force to the second limiting column 221 to make the second limiting column 221 inserted into the second limiting slot 211. Thus, the elastic assembly of the second limiting column 221 is realized.

[0100] Thus, the relative fixation of the connecting rod 21 and the telescopic rod 22 is realized by the cooperation of the second limiting column 221, the second limiting slot 211 and the second elastic member 222. This not only facilitates the operation, but also is conducive to reducing the cost. When the second limiting column 221 and the second limiting slot 211 are connected, a change in hand feeling can be provided to facilitate the user to confirm that the second limiting column 221 has been inserted into the second limiting slot 211.

[0101] Alternatively, the telescopic rod can also have a cavity accommodating the connecting rod. At this time, the connecting rod is provided with the second limiting column, and the telescopic rod is provided with the second limiting slot. Alternatively, the telescopic rod and the connecting rod are only moved by the cooperation of the sizes. That is, at this time, the second limiting column and the second limiting slot are not provided. Taking the connecting rod having a cavity accommodating the telescopic rod as an example, the telescopic rod can be retracted into the cavity to make the telescopic rod shorter, or can be extended out of the cavity to make the telescopic rod longer. The telescopic rod is limited on the connecting rod to avoid the telescopic rod out of the cavity.

[0102] Further, referring to Figure 12 and Figure 13The mounting rod 23 has a second cavity for accommodating the telescopic rod 22, and a plurality of third limiting grooves 231 are arranged on the wall of the second cavity along the extending direction of the mounting rod 23. The telescopic rod 22 is elastically provided with a third limiting column 224, and the third limiting column 224 can be inserted into or out of the third limiting grooves 231 when the telescopic rod 22 and the mounting rod 23 move relative to each other. The telescopic rod 22 can be accommodated in the second cavity to shorten the telescopic rod 2, and the telescopic rod 22 can be moved out of the second cavity relative to the connecting rod 21 to lengthen the telescopic rod 2.

[0103] It should be noted that the first cavity and the second cavity jointly accommodate the telescopic rod 22, that is, when the telescopic rod 2 is in the contracted state and has the shortest length, the telescopic rod 22 is partially accommodated in the first cavity and partially accommodated in the second cavity.

[0104] Understandably, the third limiting column 224 and the third limiting groove 231 cooperate to realize the relative fixation of the mounting rod 23 and the telescopic rod 22, and when the third limiting column 224 is inserted into the third limiting groove 231, the telescopic rod 22 is limited by the third limiting column 224 and the third limiting groove 231 to be fixed relative to the mounting rod 23. When it is necessary to move the telescopic rod 22, an external force is applied to the telescopic rod 22 or the mounting rod 23 to make the third limiting column 224 out of the third limiting groove 231, and the external force is continuously applied to the telescopic rod 22 or the mounting rod 23 until the telescopic rod 22 moves to the desired position. In this process, if a plurality of third limiting grooves 231 are passed, the third limiting column 224 will repeatedly insert and out of the third limiting groove 231.

[0105] It should be noted that the third limiting groove 231 is selected as a semispherical groove, and a ball head or a semispherical head is arranged on the third limiting column 224 to facilitate the entry and exit of the semispherical groove. Moreover, the groove surface of the semispherical groove and the bottom surface of the sliding groove 12 are smoothly transitioned.

[0106] Further, the telescopic rod 22 is provided with a third assembly channel 226, and the third limiting column 224 is elastically arranged in the third assembly channel 226 through a third elastic member 225. The third limiting column 224 compresses the third elastic member 225 during the process of being out of the third limiting groove 231, and the third elastic member 225 can also apply an external force to the third limiting column 224 to make the third limiting column 224 inserted into the third limiting groove 231, so as to realize the elastic assembly of the third limiting column 224.

[0107] Thus, the relative fixation of the telescopic rod 22 and the mounting rod 23 is achieved by the cooperation of the third limiting column 224, the third limiting slot 231 and the third elastic member 225, which is convenient to operate and helps to reduce the cost. When the third limiting column 224 is inserted into the third limiting slot 231, a change in the hand feeling can be provided to facilitate the user to confirm that the third limiting column 224 has been inserted into the third limiting slot 231.

[0108] Alternatively, the telescopic rod can have a cavity for accommodating the mounting rod, in which case the third limiting column is arranged on the mounting rod and the third limiting slot is arranged on the telescopic rod. Alternatively, the telescopic rod and the mounting rod are only allowed to move relative to each other by the cooperation of the sizes, that is, the third limiting column and the third limiting slot are not arranged in this case. For example, the mounting rod has a cavity for accommodating the telescopic rod, the telescopic rod can be retracted into the cavity to shorten the telescopic rod, or the telescopic rod can be extended out of the cavity to lengthen the telescopic rod, and the telescopic rod is limited on the mounting rod to avoid the telescopic rod from coming out of the cavity.

[0109] With reference to Figure 12 , the air nozzle 10 further comprises a switch member 5 and a contact block 6, one of which is arranged on the telescopic rod 22 and the other of which is arranged on the mounting rod 23. The contact block 6 has a closed position in contact with the switch member 5 and an open position out of contact with the switch member 5 (as shown in Figure 12 ).

[0110] In the open position, the mounting rod 23 and the telescopic rod 22 are in a fully extended state, and the switch member 5 is open to control the hair dryer to adjust the temperature according to the temperature detected by the temperature detector 3.

[0111] It can be understood that the contact block 6 has a closed position and an open position with the relative movement of the telescopic rod 22 and the mounting rod 23. When the contact block 6 is in the open position, the switch member 5 is open and the telescopic rod 2 is in an extended state, that is, the relative movement of the mounting rod 23 and the telescopic rod 22 causes the telescopic rod 2 to extend, and at this time the hair dryer adjusts according to the temperature detected by the temperature detector 3. When the contact block 6 is in the closed position, the switch member 5 is closed and the telescopic rod 2 is in a shortened state, at which time the hair dryer ignores the temperature detected by the temperature detector 3, that is, the hair dryer does not adjust according to the temperature detected by the temperature detector 3 at this time. Thus, it is ensured that the hair dryer adjusts according to the temperature detected by the temperature detector 3 only when the telescopic rod 22 and the mounting rod 23 are relatively in a fully extended state, and it is ensured that the temperature detector 3 is in full contact with the hair at this time.

[0112] For example, with reference to Figure 12In a specific implementation, the mounting rod 23 is provided with a second cavity, and the telescopic rod 22 can be extended into or out of the second cavity. At this time, the contact block 6 is arranged on the telescopic rod 22 and located in the second cavity, and the contact points of the switch element 5 are arranged in the second cavity. The contact block 6 can be in contact or out of contact with the contact points of the switch element 5 by moving relative to the mounting rod 23. When the contact block 6 is out of contact with the contact points of the switch element 5, the telescopic rod 22 and the mounting rod 23 are in a fully extended state, and at this time, the contact block 6 is located at one end of the second cavity in the extension direction of the mounting rod 23. When the contact block 6 is in contact with the contact points of the switch element 5, the telescopic rod 22 and the mounting rod 23 are in a fully retracted state, and at this time, the contact block 6 is located at the other end of the second cavity in the direction of the mounting rod 23. In addition, the third assembly channel 226 is arranged on the contact block 6, and the third limiting column 224 and the third elastic element 225 are arranged on the contact block 6.

[0113] Alternatively, in another specific implementation, the contact block can also be arranged on the mounting rod and located in the second cavity, and at this time, the switch element is arranged on the telescopic rod. Alternatively, the telescopic rod is provided with a second cavity, and the mounting rod can be extended into or out of the second cavity. At this time, one of the contact block and the switch element is arranged on the mounting rod, and the other is arranged on the telescopic rod.

[0114] Referring to Figure 14 , the rear end of the tuyere body 1 is provided with a first conductive element 13 electrically connected with the temperature detector 3. The first conductive element 13 is configured to be in conduction with a second conductive element 201 on the tuyere 20, so that the temperature detector 3 transmits a temperature signal.

[0115] For example, in a specific implementation, referring to Figure 15 and Figure 16 , the first conductive element 13 is a structure in the form of a ring, and the second conductive element 201 is a conductive contact. In this way, the first conductive element 13 and the second conductive element 201 can stably contact to realize stable signal transmission. Even when the tuyere body 1 rotates relative to the tuyere 20, the first conductive element 13 and the second conductive element 201 can still maintain contact, which is convenient for users to adjust the tuyere body 1 and improves user experience.

[0116] Moreover, the second conductive element 201 is configured as a conductive contact. After the tuyere body 1 is detached from the tuyere 20, the area of the conductive contact is small, which can reduce the possibility of being touched by foreign objects and reduce the risk of short circuit.

[0117] Further, the first conductive element 13 is provided with three, and the three first conductive elements 13 are concentrically arranged and spaced apart from each other by a predetermined distance. Similarly, the second conductive element 201 is also provided with three.

[0118] Specifically, one of the first conductive elements 13 is connected with the temperature detector 3 and the GND of the switch member 5 through wires to realize grounding. One of the first conductive elements 13 is connected with the feedback signal of the temperature detector 3 through wires to transmit the temperature signal. Another of the first conductive elements 13 is connected with the feedback signal of the switch member 5 through wires to transmit the signal of the switch member 5, that is, the switch member 5 feeds back a signal to the controller of the hair dryer when it is closed, at which time the controller of the hair dryer ignores the signal fed back by the temperature detector 3, that is, the controller of the hair dryer does not adjust the temperature according to the signal fed back by the temperature detector 3 at this time.

[0119] Specifically, when the air nozzle 10 for hair dryer is not installed on the hair dryer, the conductive contact on the hair dryer is not electrically connected with the structural member on the air nozzle body 1, at which time the temperature detection circuit inside the hair dryer is disconnected with the temperature detector 3, and thus the hair dryer enters the air nozzle-free mode.

[0120] When the air nozzle 10 for hair dryer is installed on the hair dryer, but the installation rod 23 and the telescopic rod 22 are not in the safe extension state, that is, the contact block 6 is in the closed position and the switch member 5 is in the closed state, at which time the feedback signal of the temperature detector 3 is connected with the temperature detection circuit inside the hair dryer through wires, structural members and conductive contacts, and the closed state of the switch member 5 is connected with the switch member detection circuit inside the hair dryer through wires, structural members and conductive contacts, but at this time the controller of the hair dryer ignores the feedback signal of the temperature detector 3 because the switch member 5 is in the closed state, and thus the hair dryer enters the normal air nozzle mode, that is, the temperature is not adjusted according to the feedback of the temperature detector 3 at this time.

[0121] When the air nozzle 10 for hair dryer is installed on the hair dryer, and the installation rod 23 and the telescopic rod 22 are in the safe extension state, at which time the contact block 6 is in the open position and the switch member 5 is in the open state, the feedback signal of the temperature detector 3 is connected with the temperature detection circuit inside the hair dryer through wires, structural members and conductive contacts, and the open state of the switch member 5 is connected with the switch member detection circuit inside the hair dryer through wires, structural members and conductive contacts, at which time the hair dryer enters the temperature measurement air nozzle mode, that is, the controller of the hair dryer adjusts the temperature according to the feedback signal of the temperature detector 3 at this time.

[0122] Optionally, in another specific implementation, the first conductive element and the second conductive element can both be structural members in the form of a ring. Alternatively, the first conductive element is a conductive contact, and the second conductive element is a structural member in the form of a ring.

[0123] Further, one of the air nozzle body 1 and the air duct 20 is provided with a ring-shaped insertion slot 202, and the other is provided with a ring-shaped insertion column 14, and the insertion column 14 and the insertion slot 202 cooperate to realize the positioning of the air nozzle body 1 and the air duct 20, facilitating the installation of the air nozzle body 1.

[0124] Exemplarily, referring to Figure 15 and Figure 16 , the air nozzle body 1 is provided with a plug-in column 14, and the air duct 20 is provided with a plug-in groove 202.

[0125] Referring to Figure 17 and Figure 18 , the air nozzle 10 of the hair dryer further comprises a filter screen assembly 7, which comprises a filter screen support 71 and a filter screen 72 arranged on the filter screen support 71. The filter screen assembly 7 is arranged in the air duct 11 and located at the front end of the air nozzle body 1.

[0126] Understandably, by arranging the filter screen assembly 7, the air duct 11 can be protected by the filter screen 72 to avoid foreign matters from entering the air duct 11 and contacting the heating wire of the hair dryer. Moreover, since the telescopic rod 2 needs to be adjusted by the user, the arrangement of the filter screen 72 can also block the fingers when the fingers are inadvertently inserted into the air duct 11, so as to avoid the fingers from being burnt due to being inserted into the air duct 11 for too long, thereby improving the safety of the air nozzle 10 of the hair dryer.

[0127] Exemplarily, in a specific implementation manner, referring to Figure 17 and Figure 18 , the filter screen support 71 is provided with a plurality of positioning columns 711 along the circumference thereof, and the air nozzle body 1 is provided with a plurality of assembly grooves 15 in the air duct 11. The assembly grooves 15 penetrate the front end of the air nozzle body 1, and the assembly grooves 15 are L-shaped, comprising a first groove and a second groove. The first groove penetrates the front end of the air nozzle body 1. When installing the filter screen support 71, the plurality of positioning columns 711 are inserted into the plurality of first grooves respectively, and then the filter screen support 71 is rotated so that the positioning columns 711 enter the second grooves. The installation of the filter screen support 71 is completed by limiting the positioning columns 711 by the second grooves.

[0128] Alternatively, in another specific implementation manner, the filter screen support can be detachably installed on the air nozzle body by means of magnetic attraction, screw connection or the like. Of course, the filter screen support can also be fixed on the air nozzle body by means of adhesion or the like.

[0129] It has to be noted that, in the present document, relational terms are intended only to convey a possible relationship between elements or

[0130] The above description is merely that of the specific embodiments of the application and as such is not to be taken in a limiting sense. Various modifications and co nti n uations will be evident to those skilled in the art that do not depart from the spirit and scope of the application as defined by the appended claims. The specific embodiments presented, therefore, are not to be considered in a limiting sense, but are presented for purposes of illustration only, and numerous other embodiments are contemplated.

Claims

1. A nozzle for a hair dryer, comprising a nozzle body having an air passage, the nozzle body having a front end and a rear end in the direction of extension of the air passage, the rear end being for connecting to a barrel of the hair dryer, characterized in that, The hair dryer nozzle further comprises a telescopic rod, one end of which is arranged on the nozzle body, and the other end of which is provided with a temperature detector capable of being electrically connected with the controller of the hair dryer, the telescopic rod being capable of being extended so that the temperature detector exceeds the front end and extends into the hair.

2. The air nozzle for a hair dryer according to claim 1, characterized by A sliding groove is formed on the nozzle body, and the telescopic rod is slidingly arranged in the sliding groove, and the telescopic rod moves in the sliding groove in a first direction to have a synchronous position and a dislocation position. In the dislocation position, the telescopic rod is located on one side of the air outlet of the air duct in the first direction, and in the synchronous position, the telescopic rod is located in the middle position of the air outlet in the first direction. The first direction is perpendicular to the axis direction of the telescopic rod, and the air duct extends along the axis direction of the telescopic rod.

3. The air nozzle for a hair dryer according to claim 1, characterized by A sliding groove is formed on the nozzle body, and the hair dryer nozzle further comprises a sliding member arranged in the sliding groove. One end of the telescopic rod is rotatably connected to the sliding member, and has a first position relative to the nozzle body, the telescopic rod extends in a second direction at the first position, and can be extended so that the temperature detector exceeds the front end.

4. The air nozzle for a hair dryer according to claim 3, characterized by The sliding member is rotatably arranged in the sliding groove. The telescopic rod has a second position relative to the nozzle body, the telescopic rod extends in a third direction at the second position, and the sliding member can drive the telescopic rod to rotate to be accommodated in the sliding groove. The second direction intersects the third direction.

5. The air nozzle for a hair dryer according to claim 3, wherein A plurality of first limiting grooves are arranged on the bottom surface of the sliding groove in the extension direction thereof. A first limiting column is elastically arranged on the sliding member, and the sliding member moves in the sliding groove to enable the first limiting column to be inserted into or out of the first limiting groove.

6. The air nozzle for a hair dryer according to claim 1, wherein The telescopic rod comprises a connecting rod, a telescopic rod and a mounting rod, the connecting rod is connected to the nozzle body, and the mounting rod is provided with the temperature detector. The connecting rod and the mounting rod are both capable of moving relative to the telescopic rod to extend or shorten the telescopic rod.

7. The air nozzle for a hair dryer according to claim 6, wherein A switch member and a contact block are further included, one of the switch member and the contact block is arranged on the telescopic rod, and the other is arranged on the mounting rod. The contact block has a closed position in contact with the switch member and an open position out of contact with the switch member. In the open position, the mounting rod and the telescopic rod are in a fully extended state, and the switch member is open to control the hair dryer to adjust the temperature according to the temperature detected by the temperature detector.

8. The air nozzle for a hair dryer according to claim 1, wherein A first conductive element electrically connected with the temperature detector is arranged at the rear end of the nozzle body, and the first conductive element is configured to be conductive with a second conductive element on the air duct to enable the temperature detector to transmit a temperature signal.

9. The air nozzle for a hair dryer according to claim 8, wherein One of the first conductive element and the second conductive element is a ring-shaped structure, and the other is a conductive contact or a ring-shaped structure.

10. The air nozzle for a hair dryer according to claim 1, wherein A filter screen assembly is also included, which comprises a filter screen support and a filter screen arranged on the filter screen support, and the filter screen assembly is arranged in the air duct and located at the front end of the tuyere body.

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