Hair straightener with air outlet function

Abstract

The hair straightener with the air outlet function comprises two clamping plate assemblies and handle portions, the two clamping plate assemblies are identical in structure and can be opened and closed mutually, the handle portions are connected to the same sides of the two clamping plate assemblies respectively, side air outlets are formed in the sides, in the axial direction, of the clamping plate assemblies, and straight air outlets are formed in the opposite faces of the two clamping plate assemblies. An ironing plate assembly is arranged between the side air outlet and the straight air outlet, the air outlets are formed in the two sides, the roots of hair can be dried through hot air at the same time, the hair cannot be blown disorderly, and the overall hairdressing effect and efficiency can be improved; wherein an air channel is arranged in the clamping plate assembly, a flow guide plate is arranged in the air channel, the air channel is divided into a main flow channel and a secondary flow channel by the flow guide plate, the side air outlet is communicated with the main flow channel, and the straight air outlet is communicated with the secondary flow channel, so that the air volume and the temperature blown out from the side air outlet are both larger than the air volume and the temperature of the straight air outlet, and the structure is reasonable; practicality is high, and requirements of users are better met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hairdressing appliance technical field, concretely relates to a straightening iron with air outlet function. BACKGROUND

[0002] Straightening iron is a kind of hairdressing tool, by being placed between the upper and lower two clamping plates, make clamping plate heating realizes hair softening, finally cooling and setting.For improving the effect and efficiency of modeling, most straightening iron is through hot air as auxiliary tool while straightening and pulling hair, however, the air outlet of existing straightening iron is usually only arranged at one side and only blows the part far from hair root, so that the modeling effect of hair root part is often not ideal, and brings bad experience effect to user, on the other hand, there is the problem of uneven air outlet, thus not only leads to low blowing efficiency, but also affects the overall modeling effect. SUMMARY

[0003] (1) the technical problem to be solved

[0004] The utility model provides a straightening iron with air outlet function, aims at solving the problems of no air and uneven air outlet of hair root in prior art.

[0005] (2) technical scheme

[0006] The utility model provides a straightening iron with air outlet function, including two structure same and mutually openable and closeable clamping plate components and handle portion connected in the same side of two clamping plate components, clamping plate component is equipped with side air outlet along the axial one side, and the opposite surface of two clamping plate components is equipped with straight air outlet, and the side air outlet and straight air outlet are equipped with ironing plate component between them;

[0007] Wherein, the clamping plate component is equipped with air channel, the air channel is equipped with deflector, the deflector divides the air channel into main flow channel and secondary flow channel, the side air outlet is communicated with the main flow channel, and the straight air outlet is communicated with the secondary flow channel.

[0008] Further, the deflector includes deflector inclined surface, deflector straight surface and deflector longitudinal surface connected in sequence, and the deflector inclined surface is inclinedly arranged along the direction of middle axis L1.

[0009] Further, the main flow channel is equipped with at least one deflector arc plate, one end of the deflector arc plate extends towards the handle portion, and the other end extends towards the side air outlet.

[0010] Further, the main flow channel is equipped with at least one deflector straight plate, and the extension direction of the deflector straight plate is parallel to the middle axis L1.

[0011] Further, a heating assembly is arranged in the main flow channel near the side air outlet, and the heating assembly comprises an L-shaped mica support and a heating wire arranged on the mica support.

[0012] Further, the mica support comprises a first mica sheet and a second mica sheet arranged in sequence, and at least one flow guide support block arranged between the first mica sheet and the second mica sheet, and the extension direction of the flow guide support block is perpendicular to the middle axis L1.

[0013] Further, the opposite side of each of the two clamp assembly components is provided with a mounting groove, and the ironing plate assembly is arranged in the mounting groove, and at least one elastic buffer is arranged between the ironing plate assembly and the mounting groove, and the buffer is a flexible silica gel piece or a metal spring.

[0014] Further, the ironing plate assembly comprises a heating piece, an ironing plate and a U-shaped cover, the heating piece is arranged in the ironing plate, the ironing plate is provided with the U-shaped cover at both ends along the middle axis L1, and the two sides of the ironing plate are clamped with the U-shaped cover.

[0015] Further, the end of the U-shaped cover is provided with a first step, and the mounting groove is provided with a second step corresponding to the first step.

[0016] Further, a three-way hose is further arranged between the two clamp assembly components and the handle part, one end of the three-way hose is connected with the handle part, and the other two ends are respectively connected with the air inlet ends of the air ducts of the two clamp assembly components.

[0017] Compared with the prior art, the beneficial effects of the utility model lie in:

[0018] On the one hand, the straight air outlet and the side air outlet are arranged on the two sides of the clamp assembly component respectively, so that the roots of the hair are dried by hot air at the same time, the hair is not blown out of order, and the overall hair styling effect can be improved; on the other hand, the flow guide plate is arranged in the air duct of the clamp assembly component, and the air duct is divided into a main flow channel and a secondary flow channel, wherein most of the air blown out of the main flow channel can be blown out of the side air outlet, and a small part of the air flows to the secondary flow channel and is blown out of the straight air outlet. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the utility model.

[0020] Figure 2 It is a wind direction schematic view of the straight air outlet and the side air outlet of the utility model.

[0021] Figure 3 It is a local sectional view of the utility model. Figure 1 .

[0022] Figure 4 partial sectional view of the utility model Figure 2 .

[0023] Figure 5 partial sectional view of the utility model

[0024] Figure 6 partial sectional view of the utility model Figure 1 .

[0025] Figure 7 partial sectional view of the utility model Figure 2 .

[0026] Figure 8 schematic view of the heating assembly structure of the utility model

[0027] Figure 9 partial sectional view of the utility model Figure 3 .

[0028] Figure 10 partial sectional view of the handle part of the utility model

[0029] Figure 11 enlarged view of M of the utility model Figure 10

[0030] Figure 12 schematic view of the closed state of the two splint assemblies of the utility model

[0031] Fig. 1 splint assembly, 11 side air outlet, 12 straight air outlet, 13 air duct, 131 main flow channel, 1311 flow guide arc plate, 1312 flow guide straight plate, 132 secondary flow channel, 14 mounting groove, 15 buffer, 16 shell, 161 second step, 17 elastic piece, 18 display screen, 19 clamping groove, 2 handle part, 21 outer shell, 22 circuit control assembly, 23 motor, 231 honeycomb hole noise reduction net, 24 air inlet part, 25 key, 26 locking push key, 27 clamping plate, 3 flow guide plate, 31 flow guide inclined surface, 32 flow guide straight surface, 33 flow guide vertical surface, 4 ironing plate assembly, 41 heating piece, 42 ironing plate, 43 "U" shaped cover, 431 first step, 5 heating assembly, 51 mica support, 511 first mica sheet, 512 second mica sheet, 513 flow guide support block, 514 isolation fixing piece, 515 temperature sensor, 52 heating wire, 6 three-way hose, 7 flow guide box, 71 side plate, 72 air inlet DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.​

[0033] Reference Figures 1-12 ;

[0034] As Figures 1-3 shown, the utility model provides a straightener with air outlet function, including two structure basically same upper and lower symmetry and can mutually open and close set up's clamp plate subassembly 1 and respectively connect in two clamp plate subassembly 1 same side's handle part 2, make handle part 2 between two clamp plate subassembly 1, in this embodiment, two clamp plate subassembly 1 respectively with handle part 2 hinged, to fix two clamp plate subassembly 1 and handle part 2 together, in the utility model, the length of the shell 16 of two clamp plate subassembly 1 is longer than the length of the handle part 2, after installation, the shell 16 of two clamp plate subassembly 1 will wrap handle part 2, when user uses, hand directly holds on the shell 16 of two clamp plate subassembly 1, it is convenient for single hand to control the opening and closing of two clamp plate subassembly 1 directly, and it is more convenient to use. Two clamp plate subassembly 1 is provided with fluid flow direction upper and lower parallel or cross side air outlet 11 along the axial same side, and the opposite surface of two clamp plate subassembly 1 is provided with fluid flow direction upper and lower opposite straight air outlet 12 on another same side, the number of side air outlet 11 and straight air outlet 12 is multiple, and is spaced apart respectively;Between side air outlet 11 and straight air outlet 12 is provided with ironing plate subassembly 4, two ironing plate subassembly 4 is oppositely arranged to form the clamping of hair, it is convenient for the straightening, perm and other styling of hair, when hair is placed between two ironing plate subassembly 4, straight air outlet 12 is the side close to hair root, and side air outlet 11 is the side close to hair tail, so that the hair root and hair tail can be blown simultaneously, improve the efficiency of drying hair, and solve the problem that only one side air outlet or no air in the hair root part in the prior art, so that the overall hair styling is uneven and not beautiful.

[0035] It should be noted that when the hair is placed on the ironing plate subassembly 4, the air outlet direction of the two straight air outlets 12 is perpendicular to the length direction of the hair, which can dry the hair root and will not blow the hair.

[0036] Further, as Figure 3As shown, the clamping plate assembly 1 is provided with an air duct 13, the air duct 13 is provided with a flow guide plate 3, the flow guide plate 3 divides the air duct 13 into a main flow duct 131 and a secondary flow duct 132, the side air outlet 11 communicates with the main flow duct 131, the straight air outlet 12 communicates with the secondary flow duct 132, and the heating assembly 5 is arranged in the main flow duct 131 close to the side air outlet 11, so that the user can adjust the temperature of the air outlet according to the needs, so as to realize the functions of fast drying and perming, since the straight air outlet 12 is close to the hair root side, only the hair root is blown, and the air volume does not need to be too large, so the straight air outlet 12 is arranged to communicate with the secondary flow duct 132, the heating assembly 5 is arranged on the side close to the side air outlet 11, most of the hot air flows out from the side air outlet 11, and a small part of the hot air flows out from the straight air outlet 12, so as to increase the air volume of the important part of the hair styling, so that the styling effect is better, and the temperature of the hot air of the straight air outlet 12 is lower than that of the side air outlet 11, so that the hair root part can be dried by hot air, and the risk of discomfort or even burn of the scalp caused by too high temperature is avoided, the hair root is protected, and the user experience is improved.

[0037] As Figure 4 As shown in the utility model, the two clamping plate assemblies 1 are further provided with elastic members 17 between the handle parts 2, the two ends of the elastic members 17 are respectively in abutment with the housings 16 of the clamping plate assemblies 1 and the outer shells 21 of the handle parts 2, in the natural state, the elastic members 17 make the two clamping plate assemblies 1 in the open state, so that the user can place the hair between the two ironing plate assemblies 4, then the user can make the elastic members 17 in the compressed state by applying pressure with the hands, at this time, the two clamping plate assemblies 1 can be closed to each other to form clamping of the hair, the user can perform the hair pulling action, after the hair pulling is completed, the user releases the pressure of the hands, so that the two clamping plate assemblies 1 can be separated again, and the operation is simple and convenient. Preferably, the elastic member 17 is a spring.

[0038] Preferably, as Figure 5As shown in the utility model embodiment, in order to improve the utilization of heat and the guiding effect of air volume, a flow guide box 7 is further arranged in the clamping plate assembly 1, the flow guide plate 3 and the heating assembly 5 are arranged in the flow guide box 7, when the heating assembly 5 generates heat, the heat can be stored in the flow guide box 7, which can prevent heat loss and avoid direct heat conduction to the outside of the shell 16 of the clamping plate assembly 1, so that the user is not scalded due to the high temperature of the shell 16; the flow guide box 7 is provided with through holes corresponding to the straight air outlet 12 and the side air outlet 11 on both sides, the through holes are arranged at the lower ends of the two side plates 71 of the flow guide box 7, wherein the two side plates 71 are arranged in parallel with the length direction of the clamping plate assembly 1, since the shell 16 of the clamping plate assembly 1 is in the shape of a half ellipse, a gap is formed between the side plate 71 and the shell 16, when the air flows into the main flow channel 131 and the secondary flow channel 132, the air can flow out of the straight air outlet 12 and the side air outlet 11 along the side plate 71 due to the blockage of the side plate 71, so the side plate 71 has a flow guiding effect on the air, so that the blown air does not blow the hair. In addition, the flow guide box 7 is provided with an air inlet 72 close to one end of the three-way hose 6, the air inlet 72 is the air inlet end of the air duct 13, and the three-way hose 6 is tightly connected with the air inlet 72, so that the air flow is more concentrated and the air volume is larger.

[0039] Further, as shown in the utility model embodiment, Figure 6 Further, the flow guide plate 3 comprises a flow guide inclined surface 31, a flow guide straight surface 32 and a flow guide vertical surface 33 connected in sequence, the flow guide inclined surface 31 is arranged in the direction of the central axis L1, that is, the flow guide inclined surface 31 is arranged in the direction of the central axis L1 from the air inlet end of the air duct 13, the flow guide inclined surface 31 of the flow guide plate 3 is designed to be inclined, and the projection length of the flow guide inclined surface 31 is adapted to the total length of the side air outlet 11, so that most of the air can flow out of the side air outlet 11, and the connection between the flow guide inclined surface 31 and the flow guide straight surface 32 is designed to be a round corner, so that a small amount of air can enter the secondary flow channel 132 along the round corner and the flow guide straight surface 32 and the flow guide vertical surface 33, realizing the air outlet function of the straight air outlet 12.

[0040] Further, at least one flow guide arc plate 1311 is further arranged in the main flow channel 131, one end of the flow guide arc plate 1311 extends towards the handle part 2, and the other end extends towards the side air outlet 11, so that the air flow is guided to the side air outlet 11, the air outlet is more uniform, and the straight hair styling effect is better.

[0041] Further, the other end of the main flow channel 131 away from the air inlet 72 is also provided with at least one straight flow guide plate 1312, the extending direction of the straight flow guide plate 1312 is parallel to the middle axis L1, so that most of the air flowing from the side under the guidance of the inclined flow guide plate 31 is blocked by the straight flow guide plate 1312, and part of the air volume can flow along the straight flow guide plate 1312 into the secondary flow channel 132 and flow out of the straight air outlet 12 to blow the hair roots.

[0042] Further, as shown in Figure 7 and Figure 8 Since the main flow channel 131 is provided with a heating component 5 near the side air outlet 11, the heating component 5 includes an "L"-shaped mica support 51 and a heating wire 52 wound on the mica support 51, the heating wire 52 generates heat and stores heat in the air duct 13, so that the air blown when flowing through the air duct 13 and the heating wire 52 becomes hot air. Among them, the mica support 51 includes a first mica sheet 511 and a second mica sheet 512 arranged in an up-down manner, and at least one flow guide support block 513 arranged between the first mica sheet 511 and the second mica sheet 512, the extending direction of the flow guide support block 513 is perpendicular to the middle axis L1, so as to further ensure that the air outlet of the side air outlet 11 is more smooth, the noise is lower and the air outlet is more uniform, and at the same time the flow guide support block 513 can prevent the first mica sheet 511 and the second mica sheet 512 from deforming between them to affect the air outlet gap between the two mica sheets. In addition, the length of the mica support 51 matches the total length of the side air outlet 11, so that the air blown from the side air outlet 11 is heated more uniformly, and the effect of hair styling is better.

[0043] Preferably, isolation fixing members 514 are arranged at both ends of the mica support 51, the isolation fixing members 514 have high-temperature-resistant and heat-insulating properties, and the mica support 51 is arranged on the isolation fixing members 514, which can prevent the mica support 51 from being overheated under the heating of the heating wire 52, so as to cause damage to the shell 16.

[0044] Preferably, a temperature sensor 515 is arranged at one end of the two mica supports 51 near the air inlet 72, and the temperature sensor 515 is fixedly arranged on the isolation fixing member 514, which can prevent the temperature of the air outlet from being too high to cause damage to the hair.

[0045] Further, as shown in Figure 5 and Figure 9As shown, the opposite side of the two clamping plate assemblies 1 is provided with a mounting groove 14, the ironing plate assembly 4 is fixed in the mounting groove 14, and at least one elastic buffer 15 is arranged between the ironing plate assembly 4 and the mounting groove 14. The buffer 15 is a flexible silica gel member or a metal spring, which can slightly contract the two ironing plate assemblies 4 away from the hair when closed, so as to prevent the clamping force from being too large to "clamp" the hair (i.e. the hair is difficult to slide between the two ironing plate assemblies 4), thereby affecting the use experience.

[0046] Further, the ironing plate assembly 4 includes a heating element 41, an ironing plate 42, and a "U"-shaped cover 43. The heating element 41 is arranged in the ironing plate 42. The ironing plate 42 is provided with the "U"-shaped cover 43 at both ends along the middle axis L1. The two sides of the ironing plate 42 are clamped with the "U"-shaped cover 43, so as to realize the fixed connection of the ironing plate 42 relative to the "U"-shaped cover 43. The "U"-shaped cover 43 is clamped with the clamping plate assembly 1. Specifically, a first step 431 is arranged at the end of the "U"-shaped cover 43. The inner wall of the shell 16 of the clamping plate assembly 1 is provided with a second step 161 corresponding to the first step 431. The clamping of the first step 431 and the second step 161 can realize the fixed connection of the "U"-shaped cover 43 and the clamping plate assembly 1.

[0047] Further, as shown in the drawings, Figure 10 As shown, the handle part 2 includes an outer shell 21, a circuit control assembly 22 arranged in the outer shell 21, and a motor 23. The ironing plate assembly 4 and the heating assembly 5 are electrically connected with the circuit control assembly 22. The motor 23 is arranged between the circuit control assembly 22 and the three-way hose 6. The three-way hose 6 is tightly clamped with the outer shell 21 of the handle part 2, so as to prevent the three-way hose 6 from falling off during long-term use. In addition, the end of the handle part 2 close to the circuit control assembly 22 is also provided with an air inlet part 24. The air inlet part 24 is communicated with the air duct 13. When in use, the motor 23 generates negative pressure, so that the external airflow enters the air inlet part 24 and flows to the air duct 13. At this time, the airflow will first pass through the circuit control assembly 22 and then pass through the motor 23 without being heated. Therefore, the airflow can absorb the heat of the circuit control assembly 22, thereby forming the heat dissipation protection of the circuit control assembly 22.

[0048] Preferably, a honeycomb hole noise reduction net 231 is arranged between the motor 23 and the circuit control assembly 22. The arrangement of the honeycomb hole noise reduction net 231 can make the airflow smooth and reduce the generation of turbulence, thereby reducing the noise of the airflow.

[0049] Further, as shown in the drawings, Figure 3 and Figure 10As shown, the three-way hose 6 is connected to the handle part 2 at one end, and the other two ends have the same shape structure and are connected to the air inlet ends of the air ducts 13 of the two clamp plate assemblies 1 respectively, that is, the three-way hose 6 has a whole "Y" shape structure, so that the air entering from the handle part 2 can enter the air ducts 13 of the two clamp plate assemblies 1 evenly through the three-way hose 6, thereby enabling the two clamp plate assemblies 1 to blow air at the same time, improving the efficiency of hair styling.

[0050] Preferably, as shown in Figure 1 and Figure 12 In order to improve the user experience and facilitate the user to adjust different functions, the display screen 18 is arranged on the shell 16 of the clamp plate assembly 1, and a plurality of keys 25 are arranged on one side of the outer shell 21 of the handle part 2, the keys 25 are arranged in parallel along the length direction of the straightener, and the keys 25 and the display screen 18 are electrically connected with the circuit control assembly 22, so that the user can select straightening, air blowing or heating functions by pressing the keys 25, and the display screen 18 displays the selected function, and the use is more convenient.

[0051] Preferably, as shown in Figures 11-12 In order to facilitate the user to store and carry the straightener, the locking push key 26 is arranged on the other side of the handle part 2 opposite to the keys 25, the inner walls of the two clamp plate assemblies 1 are provided with clamping grooves 19, and the outer peripheral wall of the shell 16 of the handle part 2 is provided with clamping plates 27 corresponding to the clamping grooves 19, when the straightener is not needed, the two clamp plate assemblies 1 are closed, and then the locking push key 26 is pushed, so that the clamping plates 27 are buckled with the clamping grooves 19, thereby enabling the two clamp plate assemblies 1 to be in the closed state in the natural state, facilitating the user to store and carry; when the straightener is needed, the locking push key 26 is pushed in the opposite direction, so that the two clamp plate assemblies 1 are automatically opened, the operation is simple, and the practicability is higher.

[0052] The working principle of the utility model is described in detail as follows:

[0053] In use, the start button 25 is pressed to make the heating assembly 5 and the heating element 41 in a heating state, then the hair is placed on the ironing board 42, the two clamping plate assemblies 1 are closed to clamp the hair by the force of the hand, the airflow is mostly discharged from the side air outlet 11 under the action of the guide plate 3, and a small part of the airflow is discharged from the straight air outlet 12, so that the hair root and the hair tail are dried at the same time, the overall hair styling effect is better, and the efficiency is higher.

[0054] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0055] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A straightening iron with air blowing function, characterized in that, The utility model provides a hair iron, including two structure same and can open and close each other setting clamping plate component (1) and handle portion (2) respectively connected in two clamping plate component (1) same side, clamping plate component (1) is equipped with side air outlet (11) along the axial one side, two clamping plate component (1) opposite side is equipped with straight air outlet (12), side air outlet (11) with straight air outlet (12) between is equipped with ironing plate component (4), Wherein, the clamping plate component (1) is equipped with air channel (13) in, air channel (13) is equipped with guide vane (3) in, guide vane (3) divides main flow channel (131) and secondary flow channel (132) with air channel (13), side air outlet (11) with main flow channel (131) intercommunication, straight air outlet (12) with secondary flow channel (132) intercommunication.

2. The straightening iron with air outlet function according to claim 1, characterized in that, The guide vane (3) includes guide slope (31), guide straight surface (32) and guide vertical surface (33) connected in sequence, the guide slope (31) is inclinedly arranged along the direction of the central axis L1.

3. The straightening iron with air outlet function according to claim 2, characterized in that, The main flow channel (131) is equipped with at least one guide arc plate (1311), one end of the guide arc plate (1311) extends towards the handle portion (2), and the other end extends towards the side air outlet (11).

4. The straightening iron with air outlet function according to claim 3, characterized in that, The main flow channel (131) is equipped with at least one guide straight plate (1312), and the extension direction of the guide straight plate (1312) is parallel to the central axis L1.

5. The straightening iron with air outlet function according to claim 4, characterized in that, The main flow channel (131) is equipped with a heating assembly (5) close to the side air outlet (11), the heating assembly (5) includes an "L" shaped mica support (51) and a heating wire (52) wound on the mica support (51).

6. The straightening iron with air outlet function according to claim 5, characterized in that The mica support (51) includes a first mica sheet (511) and a second mica sheet (512) arranged in a top-down manner, and at least one guide support block (513) arranged between the first mica sheet (511) and the second mica sheet (512), the extension direction of the guide support block (513) is perpendicular to the central axis L1.

7. The straightening iron with air blowing function according to claim 1, wherein The opposite side of the two clamping plate components (1) is provided with a mounting groove (14), the ironing plate component (4) is arranged in the mounting groove (14), at least one elastic buffer (15) is arranged between the ironing plate component (4) and the mounting groove (14), and the buffer (15) is a flexible silica gel piece or a metal spring.

8. The straightening iron with air blowing function according to claim 7, wherein The ironing plate component (4) includes a heating element (41), an ironing plate (42), and a "U" shaped cover (43), the heating element (41) is arranged in the ironing plate (42), the ironing plate (42) is provided with the "U" shaped cover (43) at both ends along the central axis L1, and the two sides of the ironing plate (42) are clamped with the "U" shaped cover (43).

9. The straightening iron with air blowing function according to claim 8, wherein The end of the "U" shaped cover (43) is provided with a first step (431), and the mounting groove (14) is provided with a second step (141) corresponding to the first step (431).

10. The straightening iron with air blowing function according to claim 1, wherein Between the two clamping plate assemblies (1) and the handle part (2), a three-way hose (6) is further arranged, one end of the three-way hose (6) is connected with the handle part (2), and the other two ends are respectively connected with the air inlet ends of the air ducts (13) of the two clamping plate assemblies (1).

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