Air pipe structure with extension function

Abstract

The utility model discloses an air pipe structure with an extension function. The air outlet device comprises an air outlet cylinder and an air blowing pipe, the air blowing pipe is arranged at the air outlet end of the air outlet cylinder in a sleeving mode through an air blowing pipe extending assembly, the air blowing pipe extending assembly comprises a plurality of connecting columns circumferentially arranged on the outer wall of the air outlet cylinder and a plurality of connecting mechanisms circumferentially arranged on the inner wall of the air blowing pipe, and the connecting mechanisms correspond to the connecting columns in a one-to-one mode. The connecting mechanism comprises a connecting groove and a locking structure, the connecting groove is formed in the front-back direction, the connecting column can slide in the corresponding connecting groove, and the locking structure is used for locking / unlocking the connecting column. The length of the air pipe structure can be changed, the fatigue of a user during use is reduced, and the labor intensity of the user is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air duct structures, in particular to an air duct structure with an extension function. Background Art

[0002] As a commonly used gardening tool, a hair dryer is mainly used to sweep away fallen leaves and other debris on the lawn. The existing hair dryer is composed of a fan, an air guide tube and an air duct structure connected in sequence. The air duct structure guides the wind blown by the hair dryer and concentrates the wind force. The air duct structure is composed of an air outlet tube and an air duct connected to each other, and has a fixed length. Some people with relatively tall height may bend over for a long time to clean when using it, which will increase the user's fatigue. Summary of the invention

[0003] In order to solve the above technical problems, the utility model provides an air duct structure with an extension function, which can change the length of the air duct structure, reduce the fatigue of the user when using it, and alleviate the labor intensity of the user.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] The utility model discloses an air duct structure with an extension function, comprising an air outlet tube and a blow pipe, wherein the blow pipe is sleeved on the air outlet end of the air outlet tube through a blow pipe extension assembly, wherein the blow pipe extension assembly comprises a plurality of connecting columns circumferentially arranged on the outer wall of the air outlet tube and a plurality of connecting mechanisms circumferentially arranged on the inner wall of the blow pipe, wherein the connecting mechanisms correspond one to one with the connecting columns, wherein the connecting mechanisms comprise connecting grooves and a locking structure, wherein the connecting grooves are arranged in a front-to-rear direction, wherein the connecting columns can slide in the corresponding connecting grooves, and wherein the locking structure is used to lock / unlock the connecting columns.

[0006] In this solution, the hair dryer is held in hand to drive the hair dryer so that the connecting column slides back and forth in the corresponding connecting groove to a suitable position. At this time, the distance between the hair dryer and the air outlet is extended / shortened, and the corresponding connecting column is locked through the locking structure. At this time, the hair dryer and the air outlet are locked.

[0007] Preferably, the locking structure includes a plurality of locking grooves arranged side by side in front and back, the locking grooves are arranged along the circumference of the inner wall of the blowing pipe, one end of the locking groove is connected to the connecting groove, and the other end of the locking groove is provided with a locking mechanism, and the locking mechanism is used to lock / unlock the connecting column. Slide the connecting column into the corresponding locking groove until the locking mechanism locks the connecting column, at which time the blowing pipe and the air outlet tube are locked.

[0008] Preferably, the locking mechanism comprises a limiting groove, which is arranged circumferentially along the inner wall of the blowing pipe, and a locking protrusion is arranged at the junction of the limiting groove and the locking groove.

[0009] Preferably, the locking protrusion is provided with a first inclined surface on one side close to the connection groove, and the first inclined surface is inclined inward in a counterclockwise direction, and the top surface of the connecting column cooperates with the first inclined surface. The top surface of the connecting column cooperates with the first inclined surface so that the connecting column slides between the locking protrusion and the locking groove through the first inclined surface, so that the blowing pipe and the air outlet tube are locked.

[0010] Preferably, a second inclined surface is provided on a side of the locking protrusion away from the connecting groove, and the second inclined surface is inclined inwardly in a clockwise direction.

[0011] Preferably, the air inlet end of the air outlet duct is detachably connected to the air guide duct of the fan through a connecting structure, the connecting structure includes a connecting protrusion arranged on the outer wall of the air outlet end of the air guide duct, the air inlet end of the air outlet duct is provided with a connecting notch corresponding to the position of the connecting protrusion, the connecting protrusion matches the connecting notch, and the air outlet duct is also provided with a connecting protrusion locking mechanism, the connecting protrusion locking mechanism is used to lock / release the connecting protrusion. The connecting protrusion locking mechanism releases the connecting protrusion, the connecting protrusion moves to the outside through the connecting notch, and the air outlet duct is separated from the air guide duct of the fan, at which time the air outlet duct can be cleaned and maintained.

[0012] Preferably, the connecting protrusion locking mechanism includes a release block and an annular protrusion, the annular protrusion is arranged on the front side of the outer wall of the air outlet tube, the connecting notch is located in the annular protrusion, the connecting notch can be passed through the connecting notch, the annular protrusion is provided with a passing notch corresponding to the position of the connecting protrusion, the passing notch is connected with the connecting notch, the left and right sides of the release block are rotatably connected with the left and right side walls of the annular protrusion, a release block is provided at the front bottom of the release block, and an elastic component is provided between the rear bottom of the release block and the air outlet tube.

[0013] Preferably, a third slope is provided on the rear side of the connecting protrusion, and the third slope is inclined inward from front to back. A fourth slope is provided on the front side of the release block, and the fourth slope is gradually inclined inward from front to back.

[0014] Preferably, the elastic component includes a spring and a mounting seat, the mounting seat is arranged in the annular protrusion, the mounting seat is located at the rear side of the connecting notch, and a mounting column is arranged at the bottom of the release block corresponding to the mounting seat, and the two ends of the spring are respectively clamped with the mounting seat and the mounting column.

[0015] Preferably, a countersunk hole is provided at the top of the connecting column along the axial direction of the connecting column.

[0016] The beneficial effects of the utility model are: the blow pipe extension assembly can extend the part of the blow pipe that extends out of the air outlet tube, and is suitable for a variety of different usage environments; the locking structure is used to lock the air outlet tube and the blow pipe; the connecting protrusion locking mechanism can realize the rapid disassembly and installation between the air outlet tube and the fan, and realize the cleaning and maintenance of the air outlet tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the locking groove in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the air blowing pipe in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the air outlet duct in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the connecting protrusion locking mechanism of the utility model after removing the release block;

[0022] Figure 6 It is a structural schematic diagram of the release block in the utility model.

[0023] In the figure: 1, air outlet tube, 2, air blowing pipe, 3, air blowing pipe extension assembly, 31, connecting column, 32, connecting groove, 33, locking groove, 34, locking protrusion, 35, first inclined surface, 36, second inclined surface, 4, connecting protrusion, 41, connecting notch, 5, connecting protrusion locking mechanism, 51, annular protrusion, 52, release block, 53, through notch, 54, third inclined surface, 55, mounting seat, 6, release block, 7, fourth inclined surface. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0025] Embodiment: In this embodiment, a duct structure with an extension function is provided, such as Figures 1 to 6 As shown, it includes an air outlet tube 1 and a blow pipe 2. The blow pipe 2 is sleeved on the air outlet end of the air outlet tube 1 through a blow pipe extension assembly 3. The blow pipe extension assembly 3 includes two connecting columns 31 circumferentially arranged on the outer wall of the air outlet tube 1 and two connecting mechanisms circumferentially arranged on the inner wall of the blow pipe 2. The connecting mechanisms correspond to the connecting columns 31 one by one. The connecting mechanisms include connecting grooves 32 and locking structures. The connecting grooves 32 are arranged in a front-to-back direction, and the connecting columns 31 can slide in the corresponding connecting grooves 32. The locking structure includes three locking grooves 33 arranged in parallel and at equal intervals. The locking grooves 33 are arranged circumferentially along the inner wall of the blow pipe 2. One end of the locking groove 33 is connected to the connecting groove 32, and the other end of the locking groove 33 is provided with a locking mechanism.

[0026] The locking mechanism comprises a limiting groove which is arranged along the circumference of the inner wall of the blowing pipe 2 , and a locking protrusion 34 is arranged at the junction of the limiting groove and the locking groove 33 .

[0027] A first inclined surface 35 is provided on one side of the locking protrusion 34 close to the connecting groove 32 . The first inclined surface 35 is inclined inwardly in a counterclockwise direction, and the top surface of the connecting column 31 matches the first inclined surface.

[0028] A second inclined surface 36 is provided on a side of the locking protrusion 34 away from the connecting groove 32 . The second inclined surface 36 is inclined inwardly in a clockwise direction, and the second inclined surface 36 matches the first inclined surface 35 .

[0029] The air inlet end of the air outlet duct 1 is detachably connected to the air guide duct of the fan through a connecting structure. The connecting structure includes a connecting protrusion 4 arranged on the outer wall of the air outlet end of the air guide duct. The air inlet end of the air outlet duct 1 is provided with a connecting notch 4 at the position corresponding to the connecting protrusion 4. The connecting protrusion 4 matches the connecting notch 41. The air outlet duct 1 is also provided with a connecting protrusion locking mechanism 5.

[0030] A countersunk hole is arranged at the top of the connecting column along the axial direction of the connecting column.

[0031] The connecting protrusion locking mechanism 5 includes a release block 52 and an annular protrusion 51. The annular protrusion 51 is arranged on the front side of the outer wall of the air outlet tube 1. The connecting notch 41 is located in the annular protrusion 51. The annular protrusion 51 is provided with a through notch 53 corresponding to the position of the connecting protrusion 4. The through notch 53 is connected with the connecting notch 41. The through notch 53 can allow the connecting protrusion 4 to pass through. The left and right sides of the release block 52 are rotatably connected to the left and right side walls of the annular protrusion 51. A release block 6 is arranged at the front bottom of the release block 52, and an elastic component is arranged between the rear bottom of the release block 52 and the air outlet tube 1.

[0032] A third inclined surface 54 is provided on the rear side of the connecting protrusion 4, and the third inclined surface 54 is inclined inward from front to back. A fourth inclined surface 7 is provided on the front side of the release block 6, and the fourth inclined surface 7 is gradually inclined inward from front to back. The elastic component includes a spring and a mounting seat 55. The mounting seat 55 is provided in the annular protrusion 51, and the mounting seat 55 is located on the rear side of the connecting notch 41. A mounting column is provided at the bottom of the release block 52 corresponding to the mounting seat 55, and the two ends of the spring are respectively clamped with the mounting seat and the mounting column.

[0033] In this solution, the air inlet end of the air outlet duct is detachably connected to the air guide duct of the fan through a connecting structure. When the fan is in use, the air outlet duct needs to be extended / shortened according to the usage scenario. The air outlet duct is held and driven by the hand to make the connecting column slide back and forth in the corresponding connecting groove to the appropriate position. The air outlet duct is then rotated clockwise to make the connecting column slide into the corresponding locking groove and be locked by the locking protrusion in the locking groove. At this time, the air outlet duct and the air outlet duct are locked.

[0034] The air outlet duct needs to be disassembled and maintained after use. Press the release block down so that the mounting column at the rear end of the bottom of the release block is close to the mounting seat. At this time, the spring is squeezed, and the front end of the release block is lifted to drive the release block to rise. At this time, the connecting protrusion is no longer blocked by the release block, and the connecting protrusion can pass through the connecting notch and move to the outside through the notch. At this time, the air outlet duct is disconnected from the air guide duct of the fan.

Claims

1. A duct structure with an extension function, characterized in that: The invention comprises an air outlet cylinder (1) and a blow pipe (2), wherein the blow pipe (2) is sleeved on the air outlet end of the air outlet cylinder (1) through a blow pipe extension assembly (3), wherein the blow pipe extension assembly (3) comprises a plurality of connecting columns (31) circumferentially arranged on the outer wall of the air outlet cylinder (1) and a plurality of connecting mechanisms circumferentially arranged on the inner wall of the blow pipe (2), wherein the connecting mechanisms correspond to the connecting columns (31) one by one, and wherein the connecting mechanisms comprise connecting grooves (32) and locking structures, wherein the connecting grooves (32) are arranged in a front-to-rear direction, and the connecting columns (31) can slide in the corresponding connecting grooves (32), and the locking structures are used to lock / unlock the connecting columns (31).

2. The air duct structure with extension function according to claim 1, characterized in that: The locking structure comprises a plurality of locking grooves (33) arranged side by side in front and back, the locking grooves (33) being arranged circumferentially along the inner wall of the blowing pipe (2), one end of the locking groove (33) being connected to the connecting groove (32), and the other end of the locking groove (33) being provided with a locking mechanism, the locking mechanism being used to lock / unlock the connecting column (31).

3. The air duct structure with extension function according to claim 2, characterized in that: The locking mechanism comprises a limiting groove, which is arranged along the circumference of the inner wall of the blowing pipe (2), and a locking protrusion (34) is arranged at the junction of the limiting groove and the locking groove (33).

4. The air duct structure with extension function according to claim 3, characterized in that: The locking protrusion (34) is provided with a first inclined surface (35) on one side close to the connecting groove (32), the first inclined surface (35) is inclined inwardly in a counterclockwise direction, and the top surface of the connecting column (31) is matched with the first inclined surface.

5. The air duct structure with extension function according to claim 4, characterized in that: A second inclined surface (36) is provided on a side of the locking protrusion (34) away from the connecting groove (32), and the second inclined surface (36) is inclined inwardly in a clockwise direction.

6. The air duct structure with extension function according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The air inlet end of the air outlet duct (1) is detachably connected to the air guide duct of the fan via a connecting structure, the connecting structure comprising a connecting protrusion (4) arranged on the outer wall of the air outlet end of the air guide duct, the air inlet end of the air outlet duct (1) is provided with a connecting notch (41) at a position corresponding to the connecting protrusion (4), the connecting protrusion (4) matches the connecting notch (41), and the air outlet duct (1) is also provided with a connecting protrusion locking mechanism (5), the connecting protrusion locking mechanism (5) is used to lock / release the connecting protrusion (4).

7. The air duct structure with extension function according to claim 6, characterized in that: The connecting protrusion locking mechanism (5) comprises a release block (52) and an annular protrusion (51); the annular protrusion (51) is arranged on the front side of the outer wall of the air outlet tube (1); the connecting notch (41) is located in the annular protrusion (51); the annular protrusion (51) is provided with a through notch (53) at a position corresponding to the connecting protrusion (4); the through notch (53) is communicated with the connecting notch (41); the through notch (53) allows the connecting protrusion (4) to pass through; the left and right sides of the release block (52) are rotatably connected to the left and right side walls of the annular protrusion (51); a release block (6) is arranged at the front bottom of the release block (52); and an elastic component is arranged between the rear bottom of the release block (52) and the air outlet tube (1).

8. The air duct structure with extension function according to claim 7, characterized in that: A third inclined surface (54) is provided on the rear side of the connecting protrusion (4), and the third inclined surface (54) is inclined inward from front to back. A fourth inclined surface (7) is provided on the front side of the release block (6), and the fourth inclined surface (7) is gradually inclined inward from front to back.

9. The air duct structure with extension function according to claim 7, characterized in that: The elastic component comprises a spring and a mounting seat (55), wherein the mounting seat (55) is arranged in the annular protrusion (51), and the mounting seat (55) is located at the rear side of the connecting notch (41). A mounting column is arranged at the bottom of the release block (52) corresponding to the mounting seat (55), and the two ends of the spring are respectively clamped with the mounting seat and the mounting column.

10. The air duct structure with extension function according to claim 1, characterized in that: A countersunk hole is provided at the top of the connecting column (31) along the axial direction of the connecting column (31).

Images