Machine head connecting structure and air blowing device

Abstract

The utility model relates to a machine head connecting structure and a blowing device, the blowing device comprises a mesh enclosure assembly and a machine head which are coaxially arranged, the machine head is of a hollow structure, and a cylinder is arranged at the second end of the mesh enclosure assembly; the machine head connecting structure comprises a thread groove which is formed in the outer side of the machine head by taking the first end of the machine head as a starting point; the convex rib is arranged on the outer side of the machine head; the buckling rib is annularly arranged on the inner side of the cylinder body and corresponds to the starting point of the thread groove in position; the groove is formed in the inner side of the cylinder body. When the air blowing device is installed, after the machine head is fixed, the buckling ribs of the mesh enclosure assembly are screwed into the threaded grooves and clamped into the threaded grooves, the axial movement of the mesh enclosure assembly relative to the machine head is limited, meanwhile, the convex ribs are rotationally clamped into the grooves, the screwing-in state of the mesh enclosure assembly relative to the machine head is locked, and the circumferential movement of the mesh enclosure assembly relative to the machine head is limited; the mesh enclosure assembly and the machine head are fixedly connected, the structure is simple, and connection is firm.

Description

TECHNICAL FIELD

[0001] The utility model relates to hair dryer technical field especially, it relates to head connecting structure and hair dryer. BACKGROUND

[0002] The hair dryer comprises a base, a head erected on the base and a mesh cover assembly connected to the front end of the head. The head and the mesh cover assembly are usually connected by several screws or by magnets. However, the installation and disassembly of the screw connection is time-consuming and laborious, and the connection of the head and the mesh cover assembly by the magnet is not firm.

[0003] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model discloses a head connecting structure and a hair dryer to solve the problems of inconvenient installation and disassembly and insecure connection between the head and the mesh cover assembly.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] The head connecting structure is used for a hair dryer, and the hair dryer comprises a mesh cover assembly and a head arranged coaxially, the head is a hollow structure, and a cylinder is arranged at the second end of the mesh cover assembly. The head connecting structure comprises a thread groove, which is arranged on the outer side of the head with the first end of the head as the starting point; a convex rib, which is arranged on the outer side of the head; a clamping rib, which is arranged on the inner side of the cylinder in a ring shape and corresponds to the starting point of the thread groove in position; and a groove, which is arranged on the inner side of the cylinder. By rotating the mesh cover assembly, the clamping rib is screwed into the thread groove and clamped into the thread groove, and the convex rib is clamped into the groove, so as to realize the fixed connection of the mesh cover assembly and the head.

[0007] Further, the convex rib corresponds to the thread groove in position, and the groove is arranged on the inner side of the clamping rib.

[0008] Further, a through groove is arranged on the outer side of the head, the convex rib corresponds to the through groove in position, a convex block is arranged on the inner wall of the cylinder, the convex block corresponds to the through groove in position, and the groove is arranged on the inner side of the convex block.

[0009] Further technical solutions are that the button is arranged on the outer side of the head along a radial direction of the head; and an elastic member has a first end connected to the inner side of the button and a second end connected to the inner side of the head.

[0010] Further technical solutions are that the thread groove is divided into several parts along a circumferential direction of the head; and the locking rib has several parts divided along an inner wall of the cylinder, and the outer side of the head has a thread rib on both sides of the thread groove in the circumferential direction.

[0011] Further technical solutions are that the thread groove includes a first groove arranged on the outer side of the head in a ring shape and communicated with the first end of the head; and a second groove arranged on the outer side of the head in a ring shape and communicated with the first groove at the first end close to the side of the locking rib in the direction of rotation; and the upper end and the lower end of the locking rib are flat.

[0012] Further technical solutions are that the side of the locking rib away from the direction of rotation has a first arc surface, the side of the thread rib close to the direction of rotation has a second arc surface corresponding to the first groove; the side of the locking rib close to the direction of rotation has a first inclined surface, and the side of the thread rib away from the direction of rotation has a second inclined surface corresponding to the first groove, and the second inclined surface has the same inclination angle as the first inclined surface.

[0013] Further technical solutions are that the protruding rib is arranged in an isosceles triangle along a radial direction when viewed in an axial direction of the head, and the groove shape is matched with the protruding rib.

[0014] The utility model discloses a blowing device, the blowing device includes: base, head is hollow structure, is erected on the base, the mesh cover subassembly is with the coaxial setting of head, and the second end sets up the cylinder, head connecting structure, like the preceding, is connected between the mesh cover subassembly with head.

[0015] Further technical solutions are that the head includes a front shell and a rear shell connected to the second end of the front shell, the front shell and the rear shell enclose a hollow structure, the outer diameter of the rear shell is greater than the outer diameter of the front shell, and the outer diameter of the rear shell is the same as the outer diameter of the cylinder.

[0016] The beneficial effects of the embodiments of the utility model are as follows:

[0017] The head connecting structure of the utility model embodiment, when installing the blowing device, only needs to rotate the buckling rib of the mesh cover assembly into the screw groove and clamps into the screw groove after fixing the head, limits the axial movement of the mesh cover assembly relative to the head, and simultaneously the convex rib rotates and clamps into the groove, locks the rotating state of the mesh cover assembly relative to the head, limits the circumferential movement of the mesh cover assembly relative to the head, so as to realize the fixed connection of the mesh cover assembly and the head, simple structure, firm connection.

[0018] Further, when installing the blowing device, the head is erected on the base, the user can obviously observe the screw groove on the front shell and the arc surface and inclined surface features of the buckling rib in the cylinder and understand how to install, and when the head and the mesh cover assembly are installed in place, the convex rib enters the groove with a click sound, simple structure, convenient and easy to understand, low structure cost and design cost.

[0019] Further, the head outside is provided with a through groove, the position of the convex rib corresponds to the through groove, and the convex block groove is arranged on the convex block arranged on the inner wall of the cylinder. When installing the blowing device, only needs to rotate the buckling rib of the mesh cover assembly into the screw groove and clamps into the screw groove after fixing the head, limits the axial movement of the mesh cover assembly relative to the head, and simultaneously the convex block rotates and enters the through groove, the convex rib relatively slides along the slope to the surface of the convex block until clamps into the groove, locks the rotating state of the mesh cover assembly relative to the head, limits the circumferential movement and axial movement of the mesh cover assembly relative to the head, so as to realize the fixed connection of the mesh cover assembly and the head, simple structure. At the same time, since the convex rib and the groove are matched in shape and the convex rib is clamped into the groove around, the stability of the connection between the mesh cover assembly and the head is further improved.

[0020] Further, the button is slid radially on the head outside, the inner side of the button is elastically connected with the inside of the head, when the convex rib rotates and clamps into the groove, the buckling rib or the convex block first extrudes the convex rib, at this time, the elastic element generates elastic force, the convex rib is clamped into the groove under the action of the elastic force, and the abrasion between the convex rib and the buckling rib and the convex block is reduced. Pressing the button, the convex rib is separated from the groove, so that the mesh cover and the head assembly can be unlocked, and the blowing device is convenient to install and disassemble. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the axonometric view of the head of the utility model.

[0022] Figure 2 It is the axonometric view of the mesh cover assembly of the utility model.

[0023] Figure 3 It is the side view structure schematic view of the head of the utility model.

[0024] Figure 4 It is the transverse sectional view of the mesh cover assembly of the utility model.

[0025] Figure 5It is a front view structural schematic diagram of the machine head.

[0026] Figure 6 It is a rear view structural schematic diagram of the mesh cover assembly.

[0027] Figure 7 It is a side view structural schematic diagram of the machine head in the second embodiment of the utility model.

[0028] Figure 8 It is an axonometric view of the mesh cover assembly in the second embodiment of the utility model.

[0029] Figure 9 It is a rear view structural schematic diagram of the mesh cover assembly in the second embodiment of the utility model.

[0030] Figure 10 It is Figure 7 The section view at A-A.

[0031] Figure 11 It is an axonometric view of the blowing device.

[0032] In the figure:

[0033] 1, mesh cover assembly; 2, machine head; 21, front shell; 22, rear shell; 23, threaded groove; 231, first groove; 232, second groove; 24, threaded rib; 241, second arc surface; 242, second inclined surface; 25, convex rib; 26, through groove; 27, button; 28, elastic piece; 3, barrel; 31, buckling rib; 32, groove; 33, first arc surface; 34, first inclined surface; 35, convex block; 36, slope; 4, base. DETAILED DESCRIPTION

[0034] The specific implementation of the utility model will be described below in combination with the drawings.

[0035] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will make further detailed description to the device of the utility model combining with the drawings and specific embodiments. According to the following description, the advantages and features of the utility model will be more clearly. It should be noted that the drawings are very simplified and all use non-precise proportions, only for the purpose of facilitating and clearly assisting the description of the embodiment of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the drawings. It should be known that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, for the understanding and reading of persons skilled in the art, and not used to limit the limiting conditions of the implementation of the utility model, so it does not have the substantial meaning in technology, any modification of structure, change of proportion relationship or adjustment of size, as long as it does not affect the effect and purpose that can be achieved by the utility model, should still fall within the scope covered by the disclosed technical content of the utility model.

[0036] First embodiment:

[0037] The embodiment discloses a head connecting structure.

[0038] Figure 1 It is the axonometric view of the head 2 of the utility model. Figure 2 It is the axonometric view of the mesh cover assembly 1 of the utility model. As shown in Figure 1 and Figure 2 The head connecting structure is used for a blowing device. In the embodiment, the blowing device is a table fan. Those skilled in the art can know that the blowing device can also be an air conditioner fan, a floor fan, a wall fan, a circulating fan and the like. The blowing device comprises a mesh cover assembly 1 and a head 2 coaxially arranged, the head 2 is a hollow structure, and the mesh cover assembly 1 is provided with a cylinder 3 at a second end.

[0039] The head connecting structure comprises a threaded groove 23, a convex rib 25, a clamping rib 31 and a groove 32. As shown in Figure 1 The threaded groove 23 starts from the first end of the head 2 and is arranged on the outer side of the head 2. The convex rib 25 is arranged on the outer side of the head 2. As shown in Figure 2 The clamping rib 31 is arranged on the inner side of the cylinder 3 in a ring shape, and the position corresponds to the starting point of the threaded groove 23, and the groove 32 is arranged on the inner side of the cylinder 3. Among them, rotating the mesh cover assembly 1, the clamping rib 31 is screwed into the threaded groove 23 and clamped into the threaded groove 23, and the convex rib 25 is clamped into the groove 32, so as to realize the fixed connection of the mesh cover assembly 1 and the head 2. Exemplarily, the position of the convex rib 25 corresponds to the inside of the threaded groove 23. The groove 32 is arranged on the inner side of the clamping rib 31.

[0040] Figure 3 It is the side view structural schematic diagram of the head 2 of the utility model. As shown in Figure 3 Exemplarily, the first end is the end close to the user, and the second end is the end away from the user, so thatFigure 3 For example, the first end is the upper end, the second end is the lower end, and the direction of screwing in the reinforcing bar 31 is as follows: Figure 1 As indicated in the diagram. The threaded groove 23 includes a first groove 231 and a second groove 232. The first groove 231 is annular, located on the outside of the machine head 2, and communicates with the first end of the machine head 2. The second groove 232 is annular, located on the outside of the machine head 2, with its first end near the screw-in direction of the rib 31 communicating with the first groove 231. The position of the rib 25 corresponds to the inside of the second groove 232. Figure 4 This is a cross-sectional view of the mesh cover assembly 1 of this utility model. (See attached image.) Figure 4 As shown, the upper and lower ends of the snap rib 31 are flat. When the snap rib 31 is inserted into the threaded groove 23, the flat surfaces of the upper and lower ends of the snap rib 31 abut against the top and bottom of the second groove 232, respectively.

[0041] Figure 5 This is a front view structural diagram of the head 2 of this utility model. Figure 6 This is a rear view structural diagram of the mesh cover assembly 1 of this utility model. Figure 5 and Figure 6 As shown, furthermore, the threaded groove 23 has several segments, which are evenly spaced along the circumference of the machine head 2. The retaining ribs 31 have several segments, which are evenly spaced along the inner wall of the cylinder 3. The outer side of the machine head 2 has threaded ribs 24 on both sides of the threaded groove 23, so that the mesh cover assembly 1 and the machine head 2 can be installed one-to-one at any angle.

[0042] like Figure 3 and Figure 4 As shown, further, the side of the buckle 31 away from its screw-in direction has a first arc surface 33, and the side of the threaded rib 24 near the screw-in direction of the buckle 31 has a second arc surface 241 corresponding to the first groove 231, which reduces the friction and collision between the buckle 31 and the threaded rib 24 when screwed in, and improves the service life of the machine head connection structure.

[0043] like Figure 3 and Figure 4 As shown, further, the side of the buckle 31 closest to its screw-in direction has a first inclined surface 34, and the side of the threaded rib 24 away from the screw-in direction of the buckle 31 has a second inclined surface 242 corresponding to the first groove 231. The second inclined surface 242 has the same inclination angle as the first inclined surface 34, which reduces the friction and collision between the buckle 31 and the threaded rib 24 when the buckle 31 is screwed out, and improves the service life of the machine head connection structure.

[0044] like Figure 1 As shown, further, when the rib 25 is viewed from the axial direction along the machine head 2, the rib 25 is an isosceles triangle arranged radially, and the shape of the groove 32 matches the rib 25. Preferably, the top of the isosceles triangle is chamfered to facilitate the rib 25 sliding into the groove 32, reduce wear when the rib 25 slides into the groove 32, and further improve the service life of the machine head connection structure.

[0045] In the embodiment, when installing the blowing device, after the handpiece 2 is fixed, only need to rotate the buckle rib 31 of the screen cover assembly 1 into the threaded groove 23 and clamp it into the threaded groove 23, limit the axial movement of the screen cover assembly 1 relative to the handpiece 2, at the same time, the convex rib 25 is rotated and clamped into the groove 32 inside the buckle rib 31, lock the rotating state of the screen cover assembly 1 relative to the handpiece 2, limit the circumferential movement of the screen cover assembly 1 relative to the handpiece 2, to realize the fixed connection of the screen cover assembly 1 and the handpiece 2, the structure is simple and the connection is firm.

[0046] Second embodiment:

[0047] Based on the first embodiment, the convex rib 25 and the groove 32 are further optimized and refined in the second embodiment.

[0048] Figure 7 It is a side view structural schematic diagram of the handpiece in the second embodiment of the utility model. As shown in the figure, Figure 7 The outer side of the handpiece 2 is provided with a through groove 26, and the position of the convex rib 25 corresponds to the through groove 26. Figure 8 It is an axonometric view of the screen cover assembly in the second embodiment of the utility model. Figure 9 It is a rear view structural schematic diagram of the screen cover assembly in the second embodiment of the utility model. As shown in the figure, Figure 8 And Figure 9 The inner wall of the cylinder body 3 is provided with a convex block 35, the position of the convex block 35 corresponds to the through groove 26, and the groove 32 is arranged on the inner side of the convex block 35. Specifically, the through groove 26 is located on the side of the circumferential direction of the threaded groove 23, and the first end has an opening, so that the convex block 35 can rotate into the through groove 26.

[0049] As shown in the figure, Figure 8 And Figure 9 Preferably, the handpiece connecting structure further comprises a slope 36, which is arranged on the inner wall of the cylinder body 3 and connected to one end of the convex block 35 away from the rotating direction, so as to facilitate the sliding of the convex rib 25 along the slope 36 to the convex block 35, reduce the collision and abrasion between the convex rib 25 and the convex block 35, and improve the service life of the handpiece connecting structure.

[0050] In the embodiment, when installing the blowing device, after the handpiece 2 is fixed, only need to rotate the buckle rib 31 of the screen cover assembly 1 into the threaded groove 23 and clamp it into the threaded groove 23, limit the axial movement of the screen cover assembly 1 relative to the handpiece 2, at the same time, the convex block 35 is rotated into the through groove 26, the convex rib 25 is relatively slid along the slope 36 to the surface of the convex block 35 until clamped into the groove 32, lock the rotating state of the screen cover assembly 1 relative to the handpiece 2, limit the circumferential movement and axial movement of the screen cover assembly 1 relative to the handpiece 2, to realize the fixed connection of the screen cover assembly 1 and the handpiece 2, the structure is simple. At the same time, since the convex rib 25 and the groove 32 are matched in shape and the convex rib 25 is clamped into the groove 32 around, the stability of the connection between the screen cover assembly 1 and the handpiece 2 is further improved.

[0051] Third embodiment:

[0052] Based on the first or second embodiment, the third embodiment further optimizes and refines the convex rib 25.

[0053] Figure 10 For Figure 7 The cross-sectional view at A-A. As Figure 10 The head connection structure also includes a button 27 and a resilient member 28. The button 27 is radially slidingly disposed on the outside of the head 2. The resilient member 28 has a first end connected to the inside of the button 27 and a second end connected to the inside of the head 2. The convex rib 25 passes through and extends into the head 2, and the portion of the convex rib 25 that extends into the head 2 is connected to the side of the button 27.

[0054] In this embodiment, when the convex rib 25 is rotated and clamped into the groove 32, the buckle rib 31 or the convex block 35 first presses the convex rib 25. At this time, the resilient member 28 generates an elastic force, and when the convex rib 25 is rotated to the groove 32, it is clamped into the groove 32 under the action of the elastic force, reducing the wear between the convex rib 25 and the buckle rib 31 and the convex block 35. Pressing the button 27, the convex rib 25 is disengaged from the groove 32, which can unlock the mesh cover and the head 2 assembly, facilitating the installation and disassembly of the hair dryer.

[0055] Fourth embodiment:

[0056] The hair dryer is disclosed in this embodiment.

[0057] Figure 7 The isometric view of the hair dryer of the utility model. As Figure 7 The hair dryer includes a base 4, a head 2, a mesh cover assembly 1, and a head connection structure. The head 2 is a hollow structure and is erected on the base 4. The mesh cover assembly 1 is coaxially arranged with the head 2, and a barrel 3 is arranged at the second end. As any one of the head connection structures in the first to third embodiments, it is connected between the mesh cover assembly 1 and the head 2.

[0058] As Figure 1 Further, the head 2 includes a front shell 21 and a rear shell 22 connected to the second end of the front shell 21, and a threaded groove 23 is arranged on the outside of the front shell 21. The front shell 21 and the rear shell 22 form a hollow structure, the outer diameter of the rear shell 22 is larger than that of the front shell 21, and the outer diameter of the rear shell 22 is the same as that of the barrel 3, ensuring that the connection is neat in appearance.

[0059] In this embodiment, when the hair dryer is installed, the head 2 is erected on the base 4, and the user can clearly observe the threaded groove 23 on the front shell 21 and the arc surface and inclined surface features of the buckle rib 31 in the barrel 3 and understand how to install. When the head 2 and the mesh cover assembly 1 are installed in place, the convex rib 25 enters the groove 32 with a click sound, the structure is simple, the installation is convenient and easy to understand, and the structure cost and design cost are low.

[0060] Each technical feature of the above-described embodiments can be combined with any other technical feature, and for the sake of brevity, not all possible combinations are described, but it is understood that the scope of the disclosure encompasses all such possible combinations.

[0061] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A nosepiece connection structure, characterized by, The application relates to a hair dryer, which comprises a coaxial net cover assembly and a head, the head is a hollow structure, the second end of the net cover assembly is provided with a cylinder, and the head connecting structure comprises: a thread groove, which is arranged on the outer side of the head and starts from the first end of the head; a convex rib, which is arranged on the outer side of the head; a clamping rib, which is arranged on the inner side of the cylinder and corresponds to the starting point of the thread groove; a groove, which is arranged on the inner side of the cylinder; wherein the net cover assembly is rotated, the clamping rib is screwed into the thread groove and clamped in the thread groove, the convex rib is clamped in the groove, and the net cover assembly and the head are fixedly connected.

2. The nosepiece connection structure according to claim 1, characterized in that The convex rib corresponds to the thread groove; and the groove is arranged on the inner side of the clamping rib.

3. The nosepiece connection structure according to claim 2, characterized in that A through groove is arranged on the outer side of the head, the convex rib corresponds to the through groove; a convex block is arranged on the inner wall of the cylinder, the convex block corresponds to the through groove, and the groove is arranged on the inner side of the convex block.

4. The nosepiece connection structure according to claim 1, characterized by The head connecting structure further comprises: a button, which is arranged on the outer side of the head and slides along the radial direction of the head; a resilient member, which is connected to the inner side of the button at the first end and connected to the head at the second end; wherein the convex rib penetrates into the head, and the part of the convex rib penetrating into the head is connected to the side surface of the button.

5. The head connecting structure according to claim 1, wherein the thread groove has a plurality of thread grooves which are equally and spacedly arranged along the circumferential direction of the head; the clamping rib has a plurality of clamping ribs which are equally and spacedly arranged along the inner wall of the cylinder, and the outer side of the head has thread ribs on the two sides of the thread groove along the circumferential direction.

6. The nosepiece connection structure of claim 5, wherein: the thread groove comprises: a first groove, which is annular, arranged on the outer side of the head and communicated with the first end of the head; a second groove, which is annular, arranged on the outer side of the head and communicated with the first end of the first groove on the side close to the screwing direction of the clamping rib; the upper end and the lower end of the clamping rib are flat surfaces.

7. The nosepiece connection structure of claim 6, wherein: the side of the clamping rib away from the screwing direction has a first arc surface, the side of the thread rib close to the screwing direction of the clamping rib corresponds to the first groove and has a second arc surface; the side of the clamping rib close to the screwing direction has a first inclined surface, and the side of the thread rib away from the screwing direction of the clamping rib corresponds to the first groove and has a second inclined surface, and the inclination angles of the second inclined surface and the first inclined surface are the same.

8. The nosepiece connection structure of claim 1, wherein: when the convex rib is viewed along the axial direction of the head, the convex rib is an isosceles triangle arranged along the radial direction, and the groove shape is matched with the convex rib.

9. A hair drying device characterised in that the hair dryer comprises: a base; a head, which is a hollow structure and arranged on the base; a net cover assembly, which is coaxially arranged with the head and provided with a cylinder at the second end; a head connecting structure, which is connected between the net cover assembly and the head and is as claimed in any one of claims 1-8.

10. The hair drying device of claim 9, wherein: the head comprises a front shell and a rear shell connected to the second end of the front shell, the front shell and the rear shell form a hollow structure, the outer diameter of the rear shell is larger than that of the front shell, and the outer diameter of the rear shell is the same as that of the cylinder.

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