Electric hair drier accessory connecting structure

Abstract

The utility model discloses an accessory connecting structure of an electric hair drier, which comprises an air nozzle, a connecting assembly and a main machine handle, and is characterized in that the accessory connecting structure of the electric hair drier is divided into three parts, namely an inner ring piece, an outer ring piece and a connecting port, straight pins are arranged on the inner walls of the connectors, curved grooves are formed in the outer walls of the connectors, straight grooves are formed in the outer walls of the inner ring pieces, and clamping blocks are arranged on the inner walls of the outer ring pieces; the straight pin and the straight groove are matched with each other to limit circumferential rolling as first-stage limiting, and the curved groove and the clamping block are matched with each other to limit axial movement as second-stage limiting; the outer ring piece is sleeved outside the inner ring piece and can rotate, and a reset spring is arranged between the outer ring piece and the inner ring piece to keep continuous close fit of the curved groove and the clamping block as three-stage limiting; the structure is easy to apply and convenient to produce and manufacture, three-level heavy-heavy limiting is achieved, and safety and durability of the product connecting structure are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of hair dryers, in particular to a hair dryer accessory connection structure. Background Art

[0002] The main function of the hair dryer accessory connection structure is to fix and connect the air nozzle to the hair dryer body, ensuring that the air nozzle can output air flow stably during use and effectively shape the curly hair.

[0003] There are many styles of hair dryer accessories. For example, the air outlet is compressed into a long flat outlet nozzle, which only changes the size, shape and direction of the air outlet. The connection between the air outlet and the hair dryer body requires less firmness. Another example is an air outlet nozzle with comb teeth, which needs to comb the hair while drying it. The connection between the air outlet and the hair dryer body requires relatively greater firmness. The utility model is also aimed at an air nozzle that also includes an overall tubular side wall with an air outlet, which utilizes the Coanda fluid wall attachment effect to curl hair. The air nozzle is connected to the hair dryer body, and the hair is adsorbed and entangled on the air nozzle. The user tends to pull the hair dryer body in the opposite direction when gripping it. Therefore, the connection between the air outlet and the hair dryer body requires relatively greater firmness.

[0004] Specifically, the hair dryer attachment connection structure generally includes a connection port and a fixing device, wherein the connection port is used to connect the nozzle to the hair dryer body, and the fixing device ensures that the nozzle will not loosen or fall off during use. This structural design allows users to easily replace and install different nozzles to meet different hairstyles and styling requirements.

[0005] However, the existing hair dryer accessory connection structure also has some defects. First, if the connection structure is not designed reasonably or the manufacturing quality is not up to standard, the nozzle may become loose or fall off during use. At present, most of the hair dryer accessory connection structures are single-clip connection methods. For example, the common structure is: a protrusion is formed on the nozzle, and an L-shaped groove is set on the hair dryer body. Then the nozzle can be rotated relative to the hair dryer body, so that the protrusion is screwed into the groove and clamped by friction. The connection relationship has only one level of limit. When the nozzle is rotated in the opposite direction, it is very easy to loosen and fall off during use, thereby affecting the styling effect and user experience; secondly, frequent replacement of the nozzle may cause wear on the connection structure and reduce its service life. During use, there will be frequent replacement of the nozzle, so the connection convenience of the hair dryer accessory connection structure is also very important.

[0006] Improving the connection stability and durability of the hair dryer accessory connection structure without affecting the convenience of connection and use has become a difficult problem that is difficult to solve in the industry. Utility Model Content

[0007] The purpose of the utility model is to provide a hair dryer accessory connection structure to solve the problems raised in the above background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] Provided is a hair dryer accessory connection structure, comprising a nozzle, a connection component and a host handle, characterized in that:

[0010] The connecting component includes an inner ring and an outer ring. One end of the connecting component is connected to the air nozzle by a two-layer connecting structure consisting of the inner ring and the outer ring. A reset spring is provided between the inner ring and the outer ring. The other end of the connecting component is connected to the host handle through the inner ring.

[0011] Furthermore, the connecting end of the air nozzle is provided with a connecting port, the inner wall of the connecting port is provided with a straight tip, and the outer wall of the connecting port is provided with a curved groove.

[0012] Furthermore, the outer ring member is provided with a clamping block corresponding to the curved groove.

[0013] Furthermore, the inner ring is provided with a straight groove correspondingly connected to the straight pin.

[0014] Furthermore, the curved groove is provided with an axial sliding groove and a circumferential sliding groove, and the axial sliding groove and the circumferential sliding groove are communicated.

[0015] Furthermore, the inner ring member and the outer ring member can be coaxially rotated and misaligned in opposite directions by a return spring.

[0016] Furthermore, after the buckle is inserted into the axial sliding groove, it engages with the circumferential sliding groove through the action of a return spring.

[0017] Furthermore, the inner wall of the inner ring component is provided with an inner ring slot, an inner ring clamping rod and an inner ring fixing hole, and the inner wall of the inner ring component is provided with an inner ring slot, an inner ring clamping rod and an inner ring fixing hole which are sequentially surrounded on the inner wall of the inner ring component.

[0018] Furthermore, a handle connecting part is provided at the connecting end of the host handle and the connecting component, and the handle connecting part is provided with a handle insertion rod correspondingly connected to the inner ring slot, a handle clamping slot correspondingly connected to the inner ring clamping rod, and a handle fixing rod correspondingly connected to the inner ring fixing hole.

[0019] Furthermore, it includes an air outlet filter screen, which is fixed on the inner wall of the inner ring member. The air outlet filter screen is a multi-perforated circular thin plate, and the shape of the perforations can restrict the flow direction of wind.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The hair dryer accessory connection structure of the utility model is divided into three parts: an inner ring part, an outer ring part and a connection port; the inner wall of the connection port is provided with a straight pin, the outer wall of the connection port is provided with a curved groove, the outer wall of the inner ring part is provided with a straight groove, and the inner wall of the outer ring part is provided with a clamping block; the straight pin and the straight groove cooperate with each other to limit circumferential rolling as a primary limit, and the curved groove and the clamping block cooperate with each other to limit axial movement as a secondary limit; the outer ring part is sleeved outside the inner ring part and can rotate, and a reset spring is provided therebetween to keep the curved groove and the clamping block continuously tightly matched as a third limit; this structure is simple to use and convenient to manufacture, and the three-level multiple limit ensures the safety and durability of the product connection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the appearance structure diagram of the hair dryer accessory connection structure of the utility model;

[0023] Figure 2 This is a structural diagram of the nozzle connection port of the hair dryer accessory connection structure of the utility model;

[0024] Figure 3 A structural diagram of a main unit handle and a connecting assembly of a hair dryer accessory connecting structure of the utility model;

[0025] Figure 4 It is a side view structural diagram of the connecting assembly of the hair dryer accessory connecting structure of the utility model;

[0026] Figure 5 It is a front view structural diagram of the connecting assembly of the hair dryer accessory connecting structure of the utility model;

[0027] Figure 6 This is the internal structure diagram of the connection assembly of the hair dryer accessory connection structure of the utility model;

[0028] Figure 7 This is a structural diagram of the handle connection portion of the nozzle of the hair dryer accessory connection structure of the utility model;

[0029] Figure 8 This is a structural diagram of the connection between the inner ring of the nozzle of the hair dryer accessory connection structure and the handle connection part of the utility model;

[0030] Fig. 9 It is a partial cutaway diagram of the connection port of the utility model, and a schematic diagram of the exploded structure of the gasket and the inner ring;

[0031] Fig.10 for Fig. 9 Schematic diagram of the installation guide for straight pins and straight grooves;

[0032] Fig.11 for Fig. 9 Schematic diagram of the straight pin and straight slot fully installed;

[0033] Fig.12 This is a schematic diagram of the docking of the card block with the curved groove;

[0034] Fig.13 It is a schematic diagram of the block entering the bottom of the axial slideway;

[0035] Fig.14 It is a schematic diagram of the block entering the circumferential slide groove;

[0036] Fig.15 It is a schematic diagram of the process of the clamping block entering the circumferential sliding groove from the axial sliding groove and engaging with each other;

[0037] Fig.16 It is a schematic diagram of the process of engagement and docking of the clamping block with the limiting portion and the circumferential sliding groove;

[0038] Fig.17 It is a schematic diagram comparing the widths of two types of blocks and the width of the axial slideway;

[0039] Fig.18 It is a schematic diagram of the structure of the inner ring and the return spring;

[0040] Fig.19 It is a schematic diagram of the structure of the outer ring after partial cutting;

[0041] Fig. 20 for Fig.18 and 19 Structural assembly diagram;

[0042] Fig.21 for Fig.16 A schematic diagram of a structure in which a sliding guide surface is added;

[0043] Fig. 22 for Fig.21 Schematic diagram of the installation process.

[0044] The markings of the components in the accompanying drawings are as follows:

[0045] 10 nozzle; 11 connection port; 111 straight tip; 112 curved groove; 1121 axial slide groove; 1122 circumferential slide groove; 1123 limit surface three; 1124 arc angle; 1125 limit surface four; 1126 limit surface five; 1127 limit surface six; 1128 sliding guide surface one; 12 connection component; 121 straight groove; 122 clamping block one; 1221 limit surface two; 123 tooth ring; 124 return spring; 125 outer ring member; 1251 sliding block; 1252 limit surface ten; 1253 limit surface eleven; 1254 limit surface twelve; 126 inner ring member; 1261 inner ring slot; 1262 inner ring clamping rod; 1263 inner ring fixing hole; 126 4 Block opening; 1265 Limiting surface seven; 1266 Limiting surface eight; 1267 Sliding groove; 1268 Limiting surface nine; 127 Air outlet filter; 128 Soft rubber gasket; 129 Block two; 1291 Block two limiting part; 1292 Sliding guide surface two; 130 Limiting surface one; 13 Handle connecting part; 131 Handle plug rod; 132 Handle slot; 133 Handle fixing rod; 14 Host handle; D Curved groove depth; L1 Block one width; L3 Block two width; L2, L5 Axial slide groove width; L4 Block two limiting part width; F1, F2 Circumferential rolling force; F3 Axial resistance force; F4 Axial tension; F5 Circumferential elastic force; O'O' center axis. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0047] See also Figures 1 to 20 The utility model provides a hair dryer accessory connection structure, including a nozzle 10, a connection component 12 and a host handle 14, the connection component 12 includes an inner ring member 126 and an outer ring member 125, one end of the connection component 12 is connected to the nozzle 10 by a two-layer connection structure consisting of an inner ring member 126 and an outer ring member 125, and the nozzle 10 is provided with a connection port 11 at the connection end of the nozzle 10, a straight tip 111 is convexly provided on the inner wall surface of the connection port 11, the inner ring member 126 is provided with a straight groove 121 corresponding to the straight tip 111, a curved groove 112 is concavely provided on the outer wall surface of the connection port 111, a block 122 corresponding to the curved groove 112 is convexly provided on the inner wall surface of the outer ring member 125, and the curved groove 112 is provided with an axial slide groove 1121 and a circumferential slide groove 1122, and the axial slide groove 1121 and the circumferential slide groove 1122 are communicated; Fig.12, the axial slide groove 1121 extends axially along the central axis O'O' of the connecting port 111, and the circumferential slide groove 1122 extends circumferentially along the central axis O'O' of the connecting port 111; the number of the block 122 can be set to one, and the number of the curved groove 112 can also be set to one. When the number of both is one, the air nozzle 10 has only a docking connection with the host handle 14 at a rotation angle; therefore, when the number of the block 122 is set to one, the number of the curved groove 112 can be set to multiple, and the air nozzle 10 will have a docking connection with multiple rotation angles relative to the host handle 14; in order to consider the rationality of the structure for uniform force in this embodiment, the number of the curved groove 112 and the block 1 122 are both four, and they are evenly distributed circumferentially.

[0048] Specifically, the straight tip 111 is a strip-shaped table top protruding from the inner wall of the connecting port 11 of the air nozzle 10, preferably a trapezoidal strip. The straight tips 111 are symmetrically distributed on the inner wall of the connecting port 11 with the axis O'O' of the air nozzle 10 as the rotation axis. The number of the straight tips 111 can be one, two, three, four or more. In this embodiment, the number of straight tips 111 is four, and force can be uniformly applied to limit the position from four circumferential directions. The straight groove 121 is a trapezoidal groove formed by the inner concave outer wall surface of the inner ring member 126 and matched with the straight tip 111. The number of the straight grooves 121 is consistent with that of the straight tips 111. The trapezoidal table top of the straight tip 111 is narrow on the outside and wide on the inside, and the notch of the straight groove 121 is wide on the outside and narrow on the inside. The two can mesh with each other, and the closer the axial distance between the two, the tighter the meshing. At the same time, it is convenient for the connecting component 12 to guide each other to smoothly dock and insert when connected to the air nozzle 10, as can be seen in Fig.10 and Fig.11 ;like Fig.10 and Fig.11 When the straight tip 111 is meshed with the straight groove 121 , the straight tip 111 is subjected to two circumferential rolling forces F1 and F2 in opposite directions, thereby limiting the circumferential rolling of the nozzle 10 and the main body handle 14 .

[0049] Specifically, in order to strengthen the strength of the connection port 111 structure, a curved groove 112 and a straight tip 111 are arranged opposite to each other from the outer wall surface and the inner wall surface of the connection port 111, that is, when a curved groove 112 is concave from the outer wall surface of the connection port 111, the wall thickness of the connection port 111 will be reduced. At this time, if a straight tip 111 is arranged opposite to the curved groove 112 and convex from the inner wall surface of the connection port 111, the wall thickness of the connection port 111 will be increased. In this way, the reduction in wall thickness and the increase in wall thickness offset each other, thereby ensuring the uniformity of the wall thickness of the connection port 111 and the rationality of the structural strength.

[0050] Specifically, the curved groove 112 is an L-shaped groove concave on the outer wall surface of the connecting port 11 of the air nozzle 10. The curved groove 112 is divided into an axial groove 1121 and a circumferential groove 1122. The axial groove 1121 is a semi-open groove extending axially along the central axis 0'0' on the outer wall surface of the connecting port 11. The circumferential groove 1122 is a closed groove that connects the axial groove 1121 and changes from the axial direction to the circumferential direction. The extension direction of the circumferential groove 1122 can be perpendicular to the axial extension direction of the axial groove 1121 or slightly inclined to form an acute angle or an obtuse angle. The circumferential groove 1122 is preferably a trapezoidal groove, that is, wide outside and narrow inside, such as Figures 12 to 17 As shown, two trapezoidal bevels are formed in the circumferential slide groove 1122, one of which is a limiting surface three 1123, and a limiting surface four 1125 is also formed. The limiting surface three 1123 is connected to the axial slide groove 1121 and is provided with an arc angle 1124. The depth D of the curved groove of the axial slide groove 1121 and the circumferential slide groove 1122 is consistent. The block 122 is a block protruding from the inner wall of the outer ring 125, and the block can at least partially match the circumferential slide groove 1122 of the curved groove 112. The block 122 first enters the axial slide groove 1121 of the curved groove 112, and the The axial groove 1121 can perform a circumferential rolling limit function on the block 122. When the block 122 is inserted into the bottom end of the axial groove 1121, the connecting assembly 12 can be rolled and rotated to drive the block 122 to enter the circumferential groove 1122. The setting of the arc angle 1124 is conducive to the block 122 sliding into the circumferential groove 1122. When a circumferential rolling pre-force is set on the outer ring 125, the block 122 will automatically enter the circumferential groove 1122 and then be continuously kept engaged with the circumferential groove 1122. Figures 12 to 15 , the block 122 enters the circumferential groove 1122, the block 122 is resisted by the limiting surface 1125 in the circumferential direction, the block 122 forms a limiting surface 1221 which resists the limiting surface 1123, the connection port 11 is subjected to the longitudinal tensile force F4 from the axial direction of the block 122, and at the same time, Fig.11 When the straight tip 111 is docked with the curved groove 112, the connecting port 11 is subjected to the longitudinal resistance force F3 from the axial direction of the inner ring member 126. Through the clamping of the longitudinal tension F4 and the longitudinal resistance force F3, the connecting port 11, i.e. the nozzle 10 and the main unit handle 14, is longitudinally fixedly connected.

[0051] See also Figure 4 , Figure 6 , Fig.18 , Fig.19 and Fig. 20A return spring 124 is provided between the inner ring 126 and the outer ring 125. The return spring 124 is in a wavy shape and can also be a cylindrical helical compression spring or other elastic member that can generate a preload. A plurality of holes and grooves for installing the return spring 124 are reserved between the inner ring 126 and the outer ring 125. The return spring 124 is fixed around the holes and grooves between the inner ring 126 and the outer ring 125 in sequence. The inner ring 126 and the outer ring 125 can rotate circumferentially in a predetermined direction through the return spring 124. After the block 122 is inserted into the axial groove 1121, it rotates circumferentially in a predetermined direction through the action of the return spring 124 and engages with the circumferential groove 1122.

[0052] Specifically, when the handle 14 of the main unit of the air nozzle 10 is connected and installed, the straight tip 111 is meshed with the straight groove 121, and the air nozzle (10) cannot rotate circumferentially relative to the inner ring member (126). The outer ring member 125 can rotate circumferentially in two directions relative to the air nozzle (10) and the inner ring member (126). The first direction is the direction in which the outer ring member 125 rotates circumferentially by applying an external force to compress the return spring 124, and the second direction is the direction in which the elastic force of the return spring 124 acts on the outer ring member 125 to produce a circumferential rotation when the external force is released.

[0053] See also Figure 4 , Figure 7 and Figure 8 The other end of the connecting component 12 is connected to the host handle 14 through the inner ring part 126, and the inner wall of the inner ring part 126 is provided with an inner ring slot 1261, an inner ring clamping rod 1262 and an inner ring fixing hole 1263, and the inner ring slot 1261, the inner ring clamping rod 1262 and the inner ring fixing hole 1263 are sequentially surrounded on the inner wall of the inner ring part 126, and the host handle 14 is connected to the handle connecting part 13 of the connecting component 12, and the handle connecting part 13 is provided with a handle insertion rod 131 correspondingly connected to the inner ring slot 1261, a handle clamping groove 132 correspondingly connected to the inner ring clamping rod 1262 and a handle fixing rod 133 correspondingly connected to the inner ring fixing hole 1263.

[0054] Specifically, the inner ring slot 1261 is a groove recessed in the inner wall of the inner ring member 126, and the handle plug rod 131 is a long groove protruding from the outer wall of the handle connecting portion 13. When the connecting assembly is connected to the handle connecting portion 13, the handle plug rod 131 can be directly inserted into the inner ring slot 1261 and fit in; the inner ring clamping rod 1262 is a plug-in block protruding from the inner wall of the inner ring member 126, and the handle clamping slot 132 is a block on the outer wall of the handle connecting portion 13 that fits in with the inner ring clamping rod 1262. The inner ring clamping rod 1262 can be inserted into the handle clamping groove 132, and the handle insertion rod 131 and the inner ring clamping rod 1262 can simultaneously limit the up and down movement of the inner ring member 126; the inner ring fixing hole 1263 is a through hole on the inner wall of the inner ring member 126, and the handle fixing rod 133 is a block protruding from the outer wall of the handle connecting part 13, and the handle fixing rod 133 is consistent with the inner ring fixing hole 1263, which can limit the rotation of the inner ring member 126;

[0055] It should be noted that the connection component 12 is fixedly connected to the handle connection part 13 when in use, and the connection component 12 and the handle connection part 13 are not separated except in special circumstances.

[0056] See also Figure 6 , Fig. 9 , Fig.10 and Fig.11 , further, it includes a soft rubber gasket 128, the inner ring member 126 is provided with a limited surface 130, the soft rubber gasket 128 is installed between the connecting seam of the outer ring member 125 and the inner ring member 126 and is stopped by the limited surface 130, the soft rubber gasket 128 is a circular rubber soft ring, which can buffer the direct collision between the connecting port 11 and the limited surface 130 of the inner ring member 126, the soft rubber gasket 128 can generate a relatively gentle longitudinal resistance force F3 on the connecting port 11, and can also enhance the sealing of the connecting port 11 and the inner ring member 126 under the joint action of the longitudinal tension F4.

[0057] See also Figure 3 and Figure 4 Furthermore, it includes an air outlet filter 127, which is fixed on the inner wall of the inner ring 126. The air outlet filter 127 is a multi-perforated circular thin plate. The shape of the perforations can restrict the flow direction of wind and prevent other objects, including the user's fingers, from entering the inner ring 126 to cause safety hazards.

[0058] Specifically, the air outlet filter 127 is slightly curved, the concave surface is the air outlet, and irregular elliptical perforations are evenly distributed on the surface of the air outlet filter 127. The perforated area of ​​the air outlet filter 127 is larger than the solid area. The wind is blown out from the main unit handle and is diverted through the air outlet filter 127.

[0059] See also Fig.19The inner wall surface of the outer ring 125 is provided with a sliding block 1251, and the sliding block 1251 is formed with a limiting surface 10 1252, a limiting surface 11 1253, and a limiting surface 1254; see Fig.18 The outer wall of the inner ring member 126 is provided with a limiting surface 7 1265, a limiting surface 8 1266, and a limiting surface 9 1268, and the limiting surface 7 1265, the limiting surface 8 1266, and the limiting surface 9 1268 are surrounded by a sliding groove 1267, and a block opening 1264 is opened through the limiting surface 8 1266; see Fig. 20 , the outer ring member 125 can be sleeved on the inner ring member 126, first, the block 122 axially passes through the block opening 1264, and then the limit surface 11 1253 and the limit surface 8 1266 axially stop each other for axial limitation, and the sliding block 1251 enters the sliding groove 1267 and can slide circumferentially; the limit surface 1254 of the sliding block 1251 can stop against the limit surface 9 1268 for circumferential limitation, and the return spring 124 is clamped between the limit surface 7 1265 and the limit surface 10 1252; when the air nozzle 10 needs to be installed, it is only necessary to rotate the outer ring member 125 to align the block 122 with the longitudinal slide groove 1121, and then tighten them axially, and then release the outer ring member 125 to complete the installation of the air nozzle 10 and the main host handle.

[0060] refer to Fig.15 , Fig.16 and Fig.17 The block 122 can also be improved into a block 2 129, wherein the block 2 129 has a block 2 limiter 1291, the block 2 129 forms a limit plane 6 1127, and a limit plane 5 1126 is formed in the longitudinal slide groove 1121, and the limit plane 5 1126 and the limit plane 6 1127 can increase the circumferential rolling limit; when the block 122 is adopted, the block 1 width L1 of the block 122 is The longitudinal groove width L2 is slightly smaller than the longitudinal groove 1121, and the block 1 122 cannot roll circumferentially in the longitudinal groove 1121 to a large extent; when the block 2 129 method is adopted, the block 2 limiting portion width L4 of the block 2 129 is obviously smaller than the longitudinal groove width L5 of the longitudinal groove 1121, and the block 2 limiting portion 1291 of the block 2 129 can roll circumferentially in the longitudinal groove 1121 to a large extent.

[0061] refer to Fig.21 Figure and Fig. 22, a sliding guide surface 1128 is added at the notch of the longitudinal slide groove 1121, and a sliding guide surface 1292 matching the sliding guide surface 1128 is added to the edge of the second block 129; due to the continuous pre-action force of the reset spring 124, when the air nozzle 10 is connected to the main machine handle, the second block 129 will always be pushed to the side away from the longitudinal slide groove 1121. At this time, the outer ring 125 needs to be rotated in the opposite direction so that the second block 129 can be aligned with the longitudinal slide groove 1121. In order to solve this manual trouble, the sliding guide surface 1128 and the sliding guide surface 1292 are added as described above, combined with Fig. 22 As shown, when the sliding guide surface 1 128 conflicts with the sliding guide surface 2 1292 , the sliding guide surface 2 1292 continues to be pushed axially, and will slide along the sliding guide surface 1 1128 into the longitudinal groove 1121 , and finally bounce into the radial groove 1122 .

[0062] The hair dryer accessory connection structure of the utility model is divided into two parts, an inner ring part 126 and an outer ring part 125. The inner ring part 126 and the outer ring part 125 cooperate with each other to connect with the air nozzle 10 and the main unit handle, and multiple connection parts are formed at the connection to improve the connection stability of the air nozzle. A reset spring 124 is provided between the inner ring part 126 and the outer ring part 125. The inner ring part 126 and the outer ring part 125 can be rotatably reset by the reset spring 124. The air nozzle 10 can be disassembled and installed by stretching or compressing the reset spring 124. It is convenient and safe to use. The utility model is simple to use and has a stable connection with the air nozzle 10. It has the characteristics of stable connection, convenience, safety and durability.

[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hair dryer accessory connection structure, comprising a nozzle (10) and a connection assembly (12) arranged on a main unit handle (14), characterized in that: The air nozzle (10) is provided with a connecting port (11), the connecting assembly is provided with an inner ring member (126) and an outer ring member (125) which is sleeved outside the inner ring member (126) and can rotate circumferentially relative to the inner ring member (126), the air nozzle (10) cannot rotate circumferentially relative to the inner ring member (126), the inner wall of the connecting port (11) is provided with a straight tip (111), the outer wall of the connecting port (11) is provided with a curved groove (112), the outer wall of the inner ring member (126) is provided with a straight groove (121), the inner wall of the outer ring member (125) is provided with a clamping block (122), the straight tip (111) and the straight groove (121) cooperate with each other to limit circumferential rolling, and the curved groove (112) and the clamping block (122) cooperate with each other to limit axial movement.

2. The hair dryer accessory connection structure according to claim 1, characterized in that: The curved groove (112) is provided with an axial sliding groove (1121) and a circumferential sliding groove (1122); the axial sliding groove (1121) and the circumferential sliding groove (1122) are connected; the axial sliding groove (1121) extends axially, and the circumferential sliding groove (1122) extends circumferentially.

3. The hair dryer accessory connection structure according to claim 2, characterized in that: The clamping block 1 (122) can enter the axial sliding groove (1121), and then enter the circumferential sliding groove (1122) and be matched and connected with the circumferential sliding groove (1122).

4. The hair dryer accessory connection structure according to claim 3, characterized in that: The number of the straight tips (111) and the straight grooves (121) is multiple, corresponding to each other, and are evenly distributed around the central axis O'O'.

5. The hair dryer accessory connection structure according to claim 4, characterized in that: The number of the curved grooves (112) is multiple and evenly distributed around the central axis O'O'.

6. The hair dryer accessory connection structure according to claim 5, characterized in that: The number of the card blocks 1 (122) is multiple and evenly distributed around the central axis O'O'.

7. The hair dryer accessory connection structure according to claim 6, characterized in that: A return spring (124) is provided between the inner ring member (126) and the outer ring member (125); after the clamping block (122) enters the axial sliding groove (1121), it is connected with the circumferential sliding groove (1122) through the action of the return spring (124).

8. The hair dryer accessory connection structure according to any one of claims 1 to 7, characterized in that: The straight tip (111) and the straight groove (121) are both trapezoidal, and the inner ring member (126) is provided with a limited position surface (130) for resisting the connecting port (11).

9. The hair dryer accessory connection structure according to claim 7, characterized in that: The first clamping block (122) is provided with a second sliding guide surface (1292), and the axial sliding groove (1121) is provided with a first sliding guide surface (1128).

10. The hair dryer accessory connection structure according to claim 7, characterized in that: The first clamping block (122) is also provided with a second clamping block limiting portion (1291).

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