Blowing equipment

Abstract

The utility model discloses air blowing equipment. The air blowing equipment comprises a handheld part, an air outlet part and a pivoting part rotationally connected with the handheld part and the air outlet part, the pivoting part comprises a first rotating sleeve and a second rotating sleeve, the first rotating sleeve rotationally sleeves the outer side of the second rotating sleeve, the first rotating sleeve is connected with one end of the handheld part, and the other end of the handheld part is connected with the air outlet part. The second rotating sleeve is connected with one end of the air outlet piece, and the first rotating sleeve rotates relative to the second rotating sleeve, so that the handheld piece and the air outlet piece can be in a first working state which is coaxially arranged and can be in a second working state which is arranged at an included angle. According to the technical scheme provided by the utility model, the sizes of the handheld piece and the air outlet piece can be better optimized or reduced, so that the use mode of the air blowing equipment is more flexible.

Description

Technical Field

[0001] This utility model relates to the technical field of household appliances, specifically to a hair dryer. Background Technology

[0002] Hair dryers, such as hairdryers, are used to generate hot airflow for drying hair, frizz, or clothing. Traditional folding hairdryers are stored by folding the handle and nozzle in half, and can be unfolded to 90° for use. However, traditional folding hairdryers connect the handle to one side of the nozzle's circumference, and this rotating connection is located inside the handle or nozzle. This not only occupies space inside the handle or nozzle, but also limits the rotation angle due to interference from the outer walls of the handle or nozzle. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the main purpose of this utility model is to provide a blower that addresses the issues of traditional folding blowers affecting the internal space of the blower and the limited rotation angle of the handheld part and the air outlet of the blower.

[0004] To achieve the above objectives, this utility model proposes a blower device, including a handheld component and an air outlet component, and a pivot portion rotatably connecting the handheld component and the air outlet component. The pivot portion includes a first rotating sleeve and a second rotating sleeve. The first rotating sleeve is rotatably sleeved on the outside of the second rotating sleeve. The first rotating sleeve is connected to one end of the handheld component, and the second rotating sleeve is connected to one end of the air outlet component. The first rotating sleeve rotates relative to the second rotating sleeve, so that the handheld component and the air outlet component can be in a first working state where they are coaxially arranged, and in a second working state where they are angled together.

[0005] Optionally, the handheld component is cylindrical, with the first rotatable sleeve fitted onto one axial end of the handheld component and integrally formed with it; and / or,

[0006] The air outlet component is cylindrical, and the second rotatable sleeve is integrally formed with one end of the air outlet component along its axial direction; and / or,

[0007] The central axis of the handheld component and the central axis of the air outlet component are on the same plane and are both perpendicular to the central axis of the pivot part.

[0008] Optionally, the handheld component includes a first handle shell and a second handle shell that are radially connected to each other. The first rotating sleeve includes a first sleeve section and a second sleeve section. The first sleeve section is located at the end of the first handle shell, and the second sleeve section is located at the end of the second handle shell. The first sleeve section and the second sleeve section together surround the outer periphery of the second rotating sleeve.

[0009] Optionally, the first rotating sleeve has a first air passage hole connected to the handheld component on its peripheral side, and the first air passage hole is connected to the handheld component; the second rotating sleeve has an air guide channel, one end of which is connected to the air outlet component, and the other end of which forms a second air passage hole on the peripheral side of the second rotating sleeve.

[0010] When the blower switches between the first working state and the second working state, the first air passage and the second air passage are always at least partially connected.

[0011] Optionally, the pivot portion further includes a shield that is slidably connected to the second rotating sleeve. The shield is slidably engaged with one side of the second air passage, allowing at least a portion of the second air passage to communicate with the first air passage. An air inlet gap is formed between the shield, the handheld component, and the air outlet component.

[0012] Optionally, the shielding cover is arranged in an arc shape to match the second rotating sleeve, and the shielding cover is provided with a sliding buckle on both sides along the axial direction of the second rotating sleeve, and the two ends of the axial direction of the second rotating sleeve are respectively provided with sliding grooves, and the two sliding buckles are locked in the two sliding grooves one-to-one.

[0013] Optionally, the handheld component further includes a handle housing sleeved on the outside of the first handle housing and the second handle housing, the handle housing protruding from the first handle housing and the second handle housing at one end facing the pivot, and at least a portion of the shielding cover extending circumferentially into the inner side of the handle housing and the inner side of the air outlet, respectively; and / or,

[0014] The first air passage hole is provided with a snap-fit ​​notch on both sides along the axial direction of the second rotating sleeve. The two sliding buckles are located in the two snap-fit ​​notches in a one-to-one correspondence. The second rotating sleeve is provided with an avoidance notch at the corresponding second air passage hole. The two avoidance notches are provided at one end of the two sliding grooves.

[0015] When the air outlet rotates along the first direction, causing the blower to switch from the first working state to the second working state, each of the sliding buckles can abut against one side of the snap-fit ​​notch and one side of the avoidance notch along the circumferential direction, respectively, to restrict the air outlet from continuously rotating along the first direction.

[0016] Optionally, the blower further includes a display component, a circuit structure disposed within the handheld component, and a conductive wire electrically connecting the display component and the circuit structure. The display component is disposed at one end of the axial direction of the pivot portion. The second rotating sleeve is provided with a wire hole, and the conductive wire passes through the second rotating sleeve and through the wire hole to connect to the circuit structure.

[0017] Optionally, the blower also includes a decorative cover, which is detachably disposed at the other end of the second rotating sleeve.

[0018] Optionally, the second rotating sleeve is provided with an air guide baffle to form an air guide channel, the air guide channel connecting the handheld component and the air outlet component; multiple wire holes are provided, and all of the multiple wire holes are located outside the air guide channel.

[0019] The technical solution provided by this utility model has the following beneficial effects:

[0020] The hair dryer provided by this utility model includes a handheld component, an air outlet component, and a pivoting part. The handheld component and the air outlet component are rotatably connected through the pivoting part. The pivoting part includes a first rotating sleeve and a second rotating sleeve. The first rotating sleeve is disposed at one end of the handheld component, and the second rotating sleeve is disposed at one end of the air outlet component. The first rotating sleeve and the second rotating sleeve are not located inside the handheld component and the air outlet component, and do not occupy the internal space of the handheld component and the air outlet component, thus better optimizing or reducing the volume of the handheld component and the air outlet component; moreover, through the... The nested rotation of the first and second rotating sleeves allows the handheld component and the air outlet to rotate on the same plane during relative rotation. This ensures that the handheld component and the air outlet can be in a first working state where they are coaxially aligned (i.e., arranged in a straight line), forming a cylindrical hair dryer for easier curling or straightening. It also allows the handheld component and the air outlet to be in a second working state where they are angled, enabling regular hair drying and offering more diverse operating modes. Furthermore, since both the first and second rotating sleeves are located outside the handheld component and the air outlet, their rotation is unaffected by the outer walls of these components, resulting in a larger rotation space and allowing for a wider range of rotation angles and more flexible usage modes. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of an embodiment of the blower device provided by this utility model (in the second working state);

[0023] Figure 2 for Figure 1 A schematic diagram of the structure of the blower device described herein (in its first working state);

[0024] Figure 3 for Figure 1 A cross-sectional structural diagram of the blower described herein;

[0025] Figure 4 for Figure 1 An exploded view of the blower device described herein;

[0026] Figure 5 for Figure 1 A schematic diagram of the structure of the air outlet component and the second rotating sleeve described above;

[0027] Figure 6 for Figure 5 A structural schematic diagram of the air outlet component and the second rotating sleeve from another perspective.

[0028] Explanation of icon numbers:

[0029] 100-Blower; 1-Handheld component; 11-First handle housing; 12-Second handle housing; 13-Handle outer shell; 2-Air outlet; 3-Pivot part; 31-First rotating sleeve; 311-First connecting section; 312-Second connecting section; 313-Snap-fit ​​notch; 32-Second rotating sleeve; 321-Slide groove; 322-Avoidance notch; 323-Air guide channel; 324-Wire hole; 4-Shielding cover; 41-Sliding buckle; 5-Display component; 51-Display screen; 52-Support frame; 53-Buffer pad; 6-Circuit structure; 7-Decorative cover.

[0030] The realization of the purpose, functional characteristics and excellent effects of this utility model will be further explained below in conjunction with specific embodiments and accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] This utility model provides a blower device 100. For details, please refer to [link / reference needed]. Figures 1 to 2 In this embodiment, the blower device 100 includes a handheld component 1 and an air outlet component 2, and a pivot portion 3 rotatably connecting the handheld component 1 and the air outlet component 2. The pivot portion 3 includes a first rotating sleeve 31 and a second rotating sleeve 32. The first rotating sleeve 31 is rotatably sleeved on the outside of the second rotating sleeve 32. The first rotating sleeve 31 is connected to one end of the handheld component 1, and the second rotating sleeve 32 is connected to one end of the air outlet component 2. The first rotating sleeve 31 rotates relative to the second rotating sleeve 32, so that the handheld component 1 and the air outlet component 2 can be in a first working state where they are coaxially arranged, and in a second working state where they are at an angle to each other.

[0035] In this embodiment, the handheld component 1 and the air outlet component 2 are rotatably connected by the pivot part 3, and the pivot part 3 includes a first rotating sleeve 31 and a second rotating sleeve 32. The first rotating sleeve 31 is disposed at one end of the handheld component 1, and the second rotating sleeve 32 is disposed at one end of the air outlet component 2. The first rotating sleeve 31 and the second rotating sleeve 32 are not located inside the handheld component 1 and the air outlet component 2, and will not occupy the internal space of the handheld component 1 and the air outlet component 2, so as to better optimize or reduce the volume of the handheld component 1 and the air outlet component 2. Furthermore, by interlocking and rotating the first rotating sleeve 31 and the second rotating sleeve 32, the handheld component 1 and the air outlet component 2 can rotate on the same rotating plane when rotating relative to each other. This allows the handheld component 1 and the air outlet component 2 to be in a first working state where they are coaxially arranged, i.e., arranged in a straight line, enabling the hair dryer 100 to form a cylindrical hair dryer for easier curling or straightening. It also allows the handheld component 1 and the air outlet component 2 to be in a second working state where they are angled together, allowing for regular hair drying. This provides more diverse working modes. Moreover, since both the first rotating sleeve 31 and the second rotating sleeve 32 are located outside the handheld component 1 and the air outlet component 2, their rotation is not affected by the outer walls of the handheld component 1 and the air outlet component 2, resulting in a larger rotation space and allowing for a larger rotation angle and more flexible usage modes.

[0036] Both the handheld component 1 and the air outlet component 2 are generally cylindrical. Preferably, both the handheld component 1 and the air outlet component 2 are cylindrical with the same diameter and length, making the blower device 100 smaller and easier to store in its first working state. The first rotating sleeve 31 is located at one axial end of the handheld component 1 and is integrally formed with it; the second rotating sleeve 32 is located at one axial end of the air outlet component 2 and is integrally formed with it, resulting in a simpler structure and easier assembly. More preferably, the central axis of the handheld component 1 and the central axis of the air outlet component 2 are on the same plane and both perpendicular to the central axis of the pivot part 3, better ensuring that the handheld component 1 and the air outlet component 2 can operate in the same straight line position in the first working state, making the blower device 100 smoother overall.

[0037] Preferably, such as Figure 4As shown, the handheld component 1 includes a first handle shell 11 and a second handle shell 12 that are radially connected to each other. The first rotating sleeve 31 includes a first sleeve section 311 and a second sleeve section 312. The first sleeve section 311 is located at the end of the first handle shell 11, and the second sleeve section 312 is located at the end of the second handle shell 12. The first sleeve section 311 and the second sleeve section 312 together surround the outer periphery of the second rotating sleeve 32. The handheld component 1 is configured with a detachably connected first handle housing 11 and second handle housing 12. This allows for the installation of other components within the first handle housing 11 and second handle housing 12, such as a circuit structure 6 or a suction device. The circuit structure 6 controls the suction device, which draws external airflow into the handheld component 1 and conducts it through the pivot 3 to the air outlet 2. A heating element can be installed in the air outlet 2, and the airflow, after being heated by the heating element, can exit from the air outlet 2 for drying or styling hair. The air outlet is formed at the other end of the axial direction of the air outlet 2. Furthermore, splitting the first rotating sleeve 31 into a first connecting segment 311 and a second connecting segment 312 makes assembly of the first rotating sleeve 31 and the second rotating sleeve 32 easier.

[0038] Furthermore, a first air passage hole communicating with the handheld component 1 is formed on the peripheral side of the first rotating sleeve 31. Specifically, both the first sleeve segment 311 and the second sleeve segment 312 are cylindrically arranged extending axially along the pivot portion 3. A notch is provided on the same side of both the first sleeve segment 311 and the second sleeve segment 312, and the notch on the first sleeve segment 311 and the notch on the second sleeve segment 312 together form the first air passage hole. An air guide channel 323 is formed inside the second rotating sleeve 32, extending radially along the second rotating sleeve 32. One end of the air guide channel 323 communicates with the air outlet component 2, and the other end forms a second air passage hole on the peripheral side of the second rotating sleeve 32. When the blower device 100 switches between the first working state and the second working state, the first air passage hole and the second air passage hole are always at least partially connected. Figure 3 The dashed arrow indicates the airflow direction. Airflow can enter the air guide channel 323 from the first air passage and the second air passage of the handheld device 1, and then enter the air outlet 2 through the air guide channel 323. Moreover, when the handheld device 1 and the air outlet 2 rotate relative to each other, the first air passage can always be connected to the second air passage, thereby ensuring that the airflow can be better discharged from the air outlet 2 during the rotation process, ensuring air outlet efficiency.

[0039] Moreover, such as Figure 4 As shown, the pivot part 3 further includes a shielding cover 4 slidably connected to the second rotating sleeve 32. The shielding cover 4 is slidably engaged with one side of the second air passage, allowing at least a portion of the second air passage to communicate with the first air passage. An air inlet gap is formed between the shielding cover 4 and both the handheld component 1 and the air outlet component 2. The shielding cover 4 can decorate the circumference of the second rotating sleeve 32, making the appearance more compact and aesthetically pleasing. Moreover, since the shielding cover 4 is rotatably connected to both the first rotating sleeve 31 and the second rotating sleeve 32, and an air inlet gap is formed at the rotatable connection, when the blower 100 is in the second working state, some airflow can enter the air guide channel 323 from the air inlet gap to improve air intake efficiency, thereby improving air outlet efficiency.

[0040] The shielding cover 4 is arranged in an arc shape to match the second rotating sleeve 32. The shielding cover 4 is provided with a sliding buckle 41 on both sides along the axial direction of the second rotating sleeve 32. The two ends of the axial direction of the second rotating sleeve 32 are respectively provided with a sliding groove 321. The two sliding buckles 41 are locked in the two sliding grooves 321 in a one-to-one correspondence. The cooperation between the sliding buckles and the sliding grooves 321 makes the first rotating sleeve 31 and the second rotating sleeve 32 more stable and less prone to shaking when rotating.

[0041] Furthermore, the handheld component 1 also includes a handle housing 13 sleeved on the outside of the first handle housing 11 and the second handle housing 12. The handle housing 13 is generally cylindrical to cover the outside of the first handle housing 11 and the second handle housing 12. The handle housing 13 protrudes from the first handle housing 11 and the second handle housing 12 at one end facing the pivot part 3. At least a portion of the cover 4 along both sides in the circumferential direction can extend into the inside of the handle housing 13 and the inside of the air outlet 2, respectively. When the handheld component 1 and the air outlet 2 are rotated to the second working state, it is ensured that at least a portion of the cover 4 still extends into the inside of the handheld component 1 and the air outlet 2, making the overall structure more aesthetically pleasing.

[0042] Moreover, combined Figures 4 to 6As shown, engaging notches 313 are provided on both sides of the first air passage along the axial direction of the second rotating sleeve 32. Two sliding buckles 41 are located within the two engaging notches 313, and the second rotating sleeve 32 has a clearance notch 322 at the corresponding second air passage. The two clearance notches 322 are provided at one end of the two sliding grooves 321. When the air outlet 2 rotates along the first direction, causing the hair dryer 100 to switch from the first working state to the second working state, the two sides of each sliding buckle 41 along the circumferential direction can respectively abut against one side of the engaging notch 313 and one side of the clearance notch 322 to restrict the air outlet 2 from continuously rotating along the first direction, so that it is at the limit position of rotation along the first direction. The handheld part 1 and the air outlet 2 can remain in the second working state for operation. Preferably, at this time, the included angle between the handheld part 1 and the air outlet 2 can be 80º, so that the air outlet can be better directed towards the hair. When the handheld component 1 and the air outlet component 2 are fully extended to be in the first working state, the handle housing 13 of the handheld component 1 can be connected to the end of the air outlet component 2, so that the handheld component 1 and the air outlet component 2 are kept in a straight line at 180º to achieve the switching of different working modes.

[0043] In one embodiment, the blower device 100 further includes a display component 5, a circuit structure 6 disposed within the handheld component 1, and a conductive wire electrically connecting the display component 5 and the circuit structure 6. The display component 5 is disposed at one axial end of the pivot portion 3. The second rotating sleeve 32 is provided with a wire-passing hole 324. The conductive wire passes through the second rotating sleeve 32 and through the wire-passing hole 324 to connect to the circuit structure 6. The display component 5 may include a display screen 51, a support frame 52, and a buffer pad 53. The support frame 52 supports and fixes the display screen 51 within the first sleeve section 311. The buffer pad 53 is sandwiched between the display screen 51 and the support frame 52 to better protect the display screen 51 and prevent it from being damaged. The support frame 52 can be snapped onto the inner side of the first sleeve section 311 via a snap-fit ​​structure. A first mounting post is also provided on the support frame 52, and a second mounting post is provided on the second sleeve section 312. Screws or bolts are inserted into the first and second mounting posts to connect and fix the support frame 52 and the second sleeve section 312. Furthermore, a clearance arc hole is provided at the end of the second rotating sleeve 32, extending circumferentially along the second rotating sleeve 32. The second mounting post passes through the clearance arc hole, allowing the second mounting post to move along the clearance arc hole when the first rotating sleeve 31 rotates relative to the second rotating sleeve 32.

[0044] The blower device 100 also includes a decorative cover 7, which is detachably mounted on the other end of the second rotating sleeve 32. The decorative cover 7 has multiple protruding hooks, and the end of the second sleeve section 312 has multiple locking holes, with each hook corresponding to one of the locking holes.

[0045] Preferably, combined with Figure 5 and Figure 6 As shown, an air guide baffle is provided inside the second rotating sleeve 32 to form the air guide channel 323, which connects the handheld part 1 and the air outlet part 2; multiple wire holes 324 are provided, and all of the multiple wire holes 324 are located outside the air guide channel 323, so that the airflow will not affect the wire and ensure the stability of the wire connection.

[0046] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structure made using the contents of the present utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A blower device, characterized in that, The device includes a handheld component and an air outlet component, and a pivot portion rotatably connecting the handheld component and the air outlet component. The pivot portion includes a first rotating sleeve and a second rotating sleeve. The first rotating sleeve is rotatably sleeved on the outside of the second rotating sleeve. The first rotating sleeve is connected to one end of the handheld component, and the second rotating sleeve is connected to one end of the air outlet component. The first rotating sleeve rotates relative to the second rotating sleeve, so that the handheld component and the air outlet component can be in a first working state where they are coaxially arranged, and in a second working state where they are at an angle to each other.

2. The blower device as described in claim 1, characterized in that, The handheld component is cylindrical in shape, and the first rotatable sleeve is integrally formed with one axial end of the handheld component; and / or, The air outlet component is cylindrical, and the second rotatable sleeve is integrally formed with one end of the air outlet component along its axial direction; and / or, The central axis of the handheld component and the central axis of the air outlet component are on the same plane and are both perpendicular to the central axis of the pivot part.

3. The blower device as described in claim 1, characterized in that, The handheld component includes a first handle shell and a second handle shell that are radially connected to each other. The first rotating sleeve includes a first sleeve section and a second sleeve section. The first sleeve section is located at the end of the first handle shell, and the second sleeve section is located at the end of the second handle shell. The first sleeve section and the second sleeve section together surround the outer periphery of the second rotating sleeve.

4. The blower device as described in claim 3, characterized in that, The first rotating sleeve has a first air passage hole connected to the handheld component on its peripheral side; the second rotating sleeve has an air guide channel inside, one end of which is connected to the air outlet component and the other end of which forms a second air passage hole on the peripheral side of the second rotating sleeve. When the blower switches between the first working state and the second working state, the first air passage and the second air passage are always at least partially connected.

5. The blower device as described in claim 4, characterized in that, The pivot part further includes a shielding cover that is slidably connected to the second rotating sleeve. The shielding cover is slidably engaged on one side of the second air passage, so that at least a portion of the second air passage can communicate with the first air passage. An air inlet gap is formed between the shielding cover, the handheld component, and the air outlet component.

6. The blower device as described in claim 5, characterized in that, The shielding cover is arranged in an arc shape to match the second rotating sleeve, and the shielding cover is provided with a sliding buckle on both sides along the axial direction of the second rotating sleeve. The two ends of the axial direction of the second rotating sleeve are respectively provided with sliding grooves, and the two sliding buckles are locked in the two sliding grooves one-to-one.

7. The blower device as described in claim 6, characterized in that, The handheld component further includes a handle housing fitted over the outside of the first handle housing and the second handle housing. The handle housing protrudes from the first handle housing and the second handle housing at one end facing the pivot. At least portions of the shielding cover on both sides along the circumferential direction can extend into the inside of the handle housing and the inside of the air outlet, respectively; and / or, The first air passage hole is provided with a snap-fit ​​notch on both sides along the axial direction of the second rotating sleeve. The two sliding buckles are located in the two snap-fit ​​notches in a one-to-one correspondence. The second rotating sleeve is provided with an avoidance notch at the corresponding second air passage hole. The two avoidance notches are provided at one end of the two sliding grooves. When the air outlet rotates along the first direction, causing the blower to switch from the first working state to the second working state, each of the sliding buckles can abut against one side of the snap-fit ​​notch and one side of the avoidance notch along the circumferential direction, respectively, to restrict the air outlet from continuously rotating along the first direction.

8. The blower device as described in claim 1, characterized in that, The blower also includes a display component, a circuit structure disposed within the handheld component, and a conductive wire electrically connecting the display component and the circuit structure. The display component is disposed at one end of the axial direction of the pivot portion. The second rotating sleeve is provided with a wire hole, and the conductive wire passes through the second rotating sleeve and through the wire hole to connect to the circuit structure.

9. The blower device as described in claim 8, characterized in that, The blower also includes a decorative cover, which is detachably located at the other end of the second rotating sleeve.

10. The blower device as described in claim 8, characterized in that, The second rotating sleeve is provided with an air guide baffle to form an air guide channel, which connects the handheld part and the air outlet part; multiple wire holes are provided, and all of the multiple wire holes are located outside the air guide channel.

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