Novel automobile hidden type air outlet mechanism

Abstract

The utility model relates to the technical field of automobile accessories, and discloses a novel automobile hidden type air outlet mechanism which comprises an air outlet assembly body, a left-right air outlet mechanism, an up-down air outlet mechanism and an adjusting mechanism. The air duct shell is in interference fit with the air outlet assembly body through a plurality of elastic pieces arranged on the outer wall of the other side, the inner walls of the front end and the rear end of the air duct shell are connected with air outlet flow guide covers in a clamped mode, and the inner walls of the front end and the rear end of the air outlet assembly body are connected with air inlet flow guide covers in a clamped mode. According to the utility model, the gear is in meshed connection with the rack, the linkage connecting rod is in hinged connection with the rotating rod, and the pull rod is in hinged connection with the front cam and the rear cam, so that the air outlet direction can be changed by shifting the exposed shifting rod, and the air outlet assembly body, the air duct shell, the air inlet guide cover and the air outlet guide cover are in interference fit, so that the air outlet assembly body, the air duct shell, the air inlet guide cover and the air outlet guide cover are convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a novel automobile hidden air outlet mechanism. Background Art

[0002] The car air outlet is a component inside the car. It is part of the car's air conditioning system or heating system, and is used to guide the cooled or heated air to every corner of the car. A good air outlet design can improve the riding experience of the passengers in the car. Compared with traditional car air outlets, the car's hidden air outlet is more attractive because its hidden design can improve the aesthetics of the vehicle's interior, and it is gradually entering the field of vision of consumers and manufacturers.

[0003] However, most of the existing hidden air outlet mechanisms for automobiles on the market have relatively complex structures and many components, resulting in high production costs. In addition, the shell structures of the existing hidden air outlet mechanisms for automobiles on the market are relatively complex and difficult to assemble, which reduces the production efficiency of hidden air outlets for automobiles.

[0004] Therefore, those skilled in the art provide a novel automobile hidden air outlet mechanism to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the present utility model is to solve the shortcomings of the prior art and to propose a new type of automobile hidden air outlet mechanism, which is connected by meshing of gears and racks, hingedly connected to the rotating rod with a linkage rod, and hingedly connected to the front cam and the rear cam by a pull rod, so that the air outlet direction can be changed by toggling the exposed lever, and the interference fit between the air outlet assembly body, the air duct housing, the air inlet guide cover and the air outlet guide cover is utilized to facilitate assembly.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A novel automobile hidden air outlet mechanism comprises an air outlet assembly body, left and right air outlet mechanisms, an upper and lower air outlet mechanism and an adjustment mechanism, wherein the other side of the outer wall of each of the four sides of the air outlet assembly body is fixedly connected to a sealing ring, the outer wall of one side of the air outlet assembly body is snap-connected to an air duct housing, the air duct housing is interference-fitted with the air outlet assembly body through a plurality of elastic sheets provided on the outer wall of the other side, the front end and rear end inner walls of the air duct housing are snap-connected to an air outlet deflector, the front end and rear end inner walls of the air outlet assembly body are snap-connected to an air inlet deflector, the outer wall of one side of the air inlet deflector is interference-fitted with the outer wall of the other side of the air outlet deflector through a plurality of elastic sheets, and an adjustment mechanism is provided inside the air duct housing;

[0008] The adjusting mechanism includes a front shaft, the front end and the rear end of the outer wall of the front shaft rod body are rotatably connected to the air outlet air guide cover and the air duct housing, the outer wall of the front shaft rod body is slidably connected to a rotating cylinder, the middle part of the outer wall of one side of the rotating cylinder is fixedly connected to an exposed lever, the interior of the air outlet assembly body is provided with left and right air outlet mechanism linkage rods, the air outlet assembly body, the air duct housing, the air inlet air guide cover and the air outlet guide cover are rotatably connected to a plurality of rotating rods on one side near the center of the linkage rod, the rotating rods are all hingedly connected to the linkage rod, the upper end and the lower end of the outer wall of the rotating rod rod body are fixedly connected to the left and right spoilers, and the middle part of one of the rotating rods is fixedly connected to a gear;

[0009] The outer wall of the front axle body is slidably connected to a connecting slider, and the outer wall on the other side of the connecting slider is fixedly connected to a rack. The front end of the air outlet assembly body is provided with an up and down air outlet mechanism, and the up and down air outlet mechanism includes a pull rod. The front end of the front axle is fixedly connected to a front cam, and the front end of the air outlet assembly body and the other side of the rear end inner wall are both rotatably connected to the rear axle, the front end of the rear axle is fixedly connected to the rear cam, and the outer wall on the other side of the rear axle is fixedly connected to the rear spoiler;

[0010] Through the above technical solution, the gear fixedly connected to the rotating rod in the left and right air outlet mechanisms is meshed with the rack, and the linkage connecting rod is hingedly connected to the rotating rod, so that the exposed lever is moved left and right to change the deflection angle of the left and right spoilers, and the pull rod in the upper and lower air outlet mechanisms is hingedly connected to the front cam and the rear cam, so that the exposed lever is moved up and down to change the deflection angle of the rear spoiler fixedly connected to the rear axle, and the air outlet assembly body is connected to the air duct shell by multiple elastic sheets through interference fit, the air outlet assembly body is connected to the air inlet shroud by multiple protrusions through clip connection, the air duct shell is connected to the air outlet shroud by multiple protrusions through clip connection, and the air outlet shroud is connected to the air inlet shroud by multiple elastic sheets through interference fit, so that the assembly of the hidden air outlet of the car is facilitated.

[0011] Furthermore, an adjustment port is provided in the middle of the outer wall of one side of the air outlet deflector, and the exposed lever passes through the adjustment port to the outside of the air outlet deflector;

[0012] Through the above technical solution, the exposed lever passes through the adjustment port to the outside of the air outlet shroud, making it convenient for the user to move the exposed lever to perform adjustment operations, while the adjustment port opened on the air outlet shroud limits the range of movement of the exposed lever.

[0013] Furthermore, four clamping blocks are fixedly connected to the middle of the outer wall of the front axle shaft, and four clamping grooves are opened on the inner wall of the rotating cylinder, and the clamping grooves are clamped and connected to the clamping blocks;

[0014] Through the above technical solution, the four slots on the inner wall of the rotating cylinder are connected to the four blocks fixedly connected to the front axle, so that when the rotating cylinder is moved up and down, under the restriction of the blocks, the rotating cylinder can also rotate with the front axle, thereby driving the front cam to rotate.

[0015] Furthermore, a first limiting frame is fixedly connected to one side of the middle portion of the outer wall of the upper end of the air outlet assembly body, and a first limiting piece is fixedly connected to the upper end of one of the rotating rods;

[0016] Through the above technical solution, the first limit frame fixedly connected to the upper end of the air outlet assembly body cooperates with the first limit plate fixedly connected to the upper end of the rotating rod to limit the rotation range of the rotating rod and the deflection range of the left and right spoilers.

[0017] Furthermore, the rotating cylinder is located in the middle of the connecting slider, and the rack is meshed with the gear;

[0018] Through the above technical solution, by placing the connecting rotating cylinder in the middle of the connecting slider, when the rotating cylinder moves left and right on the front axle, the rotating cylinder will force the connecting slider to slide on the front axle as well, thereby driving the rack connected to it to drive the gear to rotate.

[0019] Furthermore, the top surface and the bottom surface of the air duct housing are fixedly connected with limiting blocks, and the limiting blocks are slidably connected to the connecting slider;

[0020] Through the above technical solution, the connecting slider is slidably connected to the two limiting blocks inside the air duct housing, so that under the restriction of the limiting blocks, the connecting slider can only move left and right without falling, so that the rack and the gear remain in a meshing state.

[0021] Furthermore, the other side of the front end outer wall of the pull rod is hingedly connected to the rear cam, and one side of the rear end outer wall of the pull rod is hingedly connected to the front cam;

[0022] With the above technical solution, the pull rod is hingedly connected to the rear cam and the front cam, so that the rotation of the front cam is linked to the rotation of the rear cam, so that the rotation of the front cam will also rotate the rear cam under the action of the pull rod, thereby driving the rear axle to rotate.

[0023] Furthermore, a second limiting piece is fixedly connected to the outer wall on the other side of the rear cam, and a second limiting frame is fixedly connected to the middle of the front outer wall of the air outlet assembly body;

[0024] Through the above technical solution, the second limiting plate fixedly connected to the other side of the rear cam cooperates with the second limiting frame fixedly connected to the air outlet assembly body, so that the rotation range of the second limiting plate is limited under the restriction of the second limiting frame, and the rotation range of the rear cam is thereby limited, preventing the rear cam from rotating beyond the set range.

[0025] The utility model has the following beneficial effects:

[0026] 1. The utility model proposes a novel automobile hidden air outlet mechanism, which is connected by meshing a gear fixedly connected to a rotating rod in the left and right air outlet mechanisms with a rack, and articulatedly connected to the rotating rod with a linkage link, so that the deflection angle of the left and right spoilers can be changed by moving the exposed lever left and right. The pull rod in the upper and lower air outlet mechanisms is articulatedly connected to the front cam and the rear cam, so that the deflection angle of the rear spoiler fixedly connected to the rear axle can be changed by moving the exposed lever up and down. The mechanical structure is simple, with fewer components, and the production and maintenance costs of the automobile hidden air outlet are reduced.

[0027] 2. The utility model proposes a new type of automobile hidden air outlet mechanism, in which the air outlet assembly body utilizes multiple elastic sheets to interference fit with the air duct shell, the air outlet assembly body utilizes multiple protrusions to be snap-connected with the air inlet deflector cover, the air duct shell utilizes multiple protrusions to be snap-connected with the air outlet deflector cover, and the air outlet deflector utilizes multiple elastic sheets to interference fit with the air inlet deflector cover. The air outlet shell has a simple structure, is light in weight, and is easy to assemble, thereby improving the production efficiency of automobile hidden air outlets. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the main structure of a new type of automobile hidden air outlet mechanism proposed by the present utility model;

[0029] Figure 2 This is an exploded view of a new type of automobile hidden air outlet mechanism proposed by the utility model;

[0030] Figure 3 This is an axial cross-sectional view of a novel automobile hidden air outlet mechanism proposed in the present utility model;

[0031] Figure 4 This is an exploded view of the front axle, front cam, rear axle, rear cam, rotating cylinder, left and right spoilers, rear spoiler and linkage rod of a new type of automobile hidden air outlet mechanism proposed by the utility model;

[0032] Figure 5 for Figure 2 Enlarged view of point A in the middle;

[0033] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0034] Legend:

[0035] 1. Air outlet assembly body; 2. Air duct shell; 3. Air inlet deflector; 4. Air outlet deflector; 5. Sealing ring; 6. Left and right air outlet mechanism; 601. Connecting slider; 602. Rack; 603. Gear; 604. Rotating rod; 605. Left and right spoilers; 606. Linking rod; 607. First limit plate; 608. First limit frame; 7. Up and down air outlet mechanism; 701. Front cam; 702. Rear axle; 703. Rear cam; 704. Pull rod; 705. Rear spoiler; 706. Second limit plate; 707. Second limit frame; 8. Adjustment mechanism; 801. Front axle; 802. Block; 803. Rotating cylinder; 804. Slot; 805. Exposed lever; 806. Adjustment port; 9. Limiting block. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the specific embodiments of the present invention to clearly and completely describe the technical solutions in the specific embodiments of the present invention. Obviously, the specific embodiments described are only part of the specific embodiments of the present invention, not all of the specific embodiments. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 , a specific implementation method provided by the utility model:

[0038] A novel automobile hidden air outlet mechanism includes an air outlet assembly body 1, left and right air outlet mechanisms 6, upper and lower air outlet mechanisms 7 and an adjustment mechanism 8. The other side of the outer wall of the air outlet assembly body 1 is fixedly connected to a sealing ring 5. The outer wall of one side of the air outlet assembly body 1 is snap-connected to the air duct housing 2. The air duct housing 2 is interference-fitted with the air outlet assembly body 1 through multiple elastic sheets provided on the outer wall of the other side. The inner walls of the front and rear ends of the air duct housing 2 are snap-connected to the air outlet guide cover 4. The inner walls of the front and rear ends of the air outlet assembly body 1 are snap-connected to the air inlet guide cover 3. The outer wall of one side of the air inlet guide cover 3 is interference-fitted with the outer wall of the other side of the air outlet guide cover 4 through multiple elastic sheets. An adjustment mechanism 8 is provided inside the air duct housing 2.

[0039] The adjusting mechanism 8 includes a front shaft 801, the front end and the rear end of the outer wall of the front shaft 801 are rotatably connected to the air outlet deflector 4 and the air duct housing 2, the outer wall of the front shaft 801 is slidably connected to the rotating cylinder 803, and the middle part of the outer wall of one side of the rotating cylinder 803 is fixedly connected to the exposed lever 805, and the interior of the air outlet assembly body 1 is provided with a left and right air outlet mechanism 6 linkage connecting rod 606, and the air outlet assembly body 1, the air duct housing 2, the air inlet deflector 3 and the air outlet deflector 4 are rotatably connected to a plurality of rotating rods 604 on one side near the center of the linkage connecting rod 606, and the rotating rods 604 are hingedly connected to the linkage connecting rod 606, and the upper end and the lower end of the outer wall of the rotating rod 604 are fixedly connected to the left and right spoilers 605, and the middle part of a rotating rod 604 is fixedly connected to the gear 603;

[0040] The outer wall of the rod body of the front shaft 801 is slidably connected to the connecting slider 601, and the outer wall on the other side of the connecting slider 601 is fixedly connected to the rack 602. The front end of the air outlet assembly body 1 is provided with an upper and lower air outlet mechanism 7, and the upper and lower air outlet mechanism 7 includes a pull rod 704. The front end of the front shaft 801 is fixedly connected to the front cam 701, and the other side of the front end and the rear end inner wall of the air outlet assembly body 1 are both rotatably connected to the rear shaft 702, the front end of the rear shaft 702 is fixedly connected to the rear cam 703, and the outer wall on the other side of the rear shaft 702 is fixedly connected to the rear spoiler 705.

[0041] The gear 603 fixedly connected to the rotating rod 604 in the left and right air outlet mechanism 6 is meshed with the rack 602, and the linkage link 606 is hingedly connected to the rotating rod 604, so that the exposed lever 805 is moved left and right to change the deflection angle of the left and right spoiler 605, and the pull rod 704 in the upper and lower air outlet mechanism 7 is hingedly connected to the front cam 701 and the rear cam 703, so that the exposed lever 805 is moved up and down to change the deflection angle of the rear spoiler 705 fixedly connected to the rear axle 702, and the air outlet assembly body 1 uses multiple elastic sheets to have an interference fit with the air duct housing 2, the air outlet assembly body 1 uses multiple protrusions to be snap-connected with the air inlet deflector 3, the air duct housing 2 uses multiple protrusions to be snap-connected with the air outlet deflector 4, and the air outlet deflector 4 uses multiple elastic sheets to have an interference fit with the air inlet deflector 3, so that the assembly of the hidden air outlet of the car is convenient.

[0042] An adjustment port 806 is provided in the middle of the outer wall of one side of the air outlet shroud 4, and an exposed lever 805 passes through the adjustment port 806 to the outside of the air outlet shroud 4. The exposed lever 805 passes through the adjustment port 806 to the outside of the air outlet shroud 4, so that the user can adjust the exposed lever 805 by toggling the exposed lever 805. The adjustment port 806 provided on the air outlet shroud 4 limits the range of motion of the exposed lever 805. Four blocks 802 are fixedly connected to the middle of the outer wall of the front shaft 801. Four slots 804 are provided on the inner wall of the rotating cylinder 803. The slots 804 and the blocks 802 are engaged. The four card slots 804 on the inner wall of the rotating cylinder 803 are connected to the four card blocks 802 fixedly connected to the front shaft 801, so that when the rotating cylinder 803 is toggled up and down, under the restriction of the card blocks 802, the rotating cylinder 803 can also rotate with the front shaft 801, thereby driving the front cam 701 to rotate. A first limit frame 608 is fixedly connected to one side of the middle of the outer wall of the upper end of the air outlet assembly body 1, and a first limit plate 607 is fixedly connected to the upper end of a rotating rod 604. The first limit frame 608 fixedly connected to the upper end of the air outlet assembly body 1 cooperates with the rotation The first limit plate 607 fixedly connected to the upper end of the rod 604 limits the rotation range of the rotating rod 604 and also limits the deflection range of the left and right spoilers 605. The rotating cylinder 803 is located in the middle of the connecting slider 601. The rack 602 is meshed with the gear 603. By placing the connecting rotating cylinder 803 in the middle of the connecting slider 601, when the rotating cylinder 803 moves left and right on the front shaft 801, the rotating cylinder 803 will force the connecting slider 601 to slide on the front shaft 801, thereby driving the rack 602 connected thereto to drive the gear 603 to rotate, and the air duct housing 2 The top and bottom surfaces of the interior are fixedly connected with limiting blocks 9, and the limiting blocks 9 are slidably connected to the connecting slider 601. The connecting slider 601 is slidably connected to the two limiting blocks 9 inside the air duct housing 2, so that under the restriction of the limiting blocks 9, the connecting slider 601 can only move left and right without falling, so that the rack 602 and the gear 603 remain in a meshing state, and the other side of the front end outer wall of the pull rod 704 is hingedly connected to the rear cam 703, and one side of the rear end outer wall of the pull rod 704 is hingedly connected to the front cam 701, and is connected to the rear cam 703 and the front cam 701 through the pull rod 704.The hinged connection links the rotation of the front cam 701 with the rotation of the rear cam 703, so that the rotation of the front cam 701 will also rotate the rear cam 703 under the action of the pull rod 704, thereby driving the rear axle 702 to rotate. The outer wall on the other side of the rear cam 703 is fixedly connected to the second limit plate 706, and the middle part of the front end outer wall of the air outlet assembly body 1 is fixedly connected to the second limit frame 707. The second limit plate 706 fixedly connected to the other side of the rear cam 703 cooperates with the second limit frame 707 fixedly connected to the air outlet assembly body 1, so that under the restriction of the second limit frame 707, the rotation range of the second limit plate 706 is limited, thereby limiting the rotation range of the rear cam 703, preventing the rear cam 703 from rotating beyond the set range.

[0043] Working principle: When using this new type of hidden air outlet mechanism for automobiles, the user can first toggle the exposed lever 805 left and right. At this time, the rotating cylinder 803 slides along the front shaft 801 driven by the exposed lever 805, forcing the connecting slider 601 to slide on the front shaft 801, driving the rack 602 to move and causing the gear 603 to rotate, driving the middle rotating rod 604 to rotate. Under the action of the linkage link 606, all the rotating rods 604 rotate, thereby changing the deflection angle of the left and right spoilers 605, allowing the air blown from the inside of the air outlet assembly body 1 to be guided by the air inlet guide cover 3. The airflow is changed in direction by the left and right spoilers 605. Secondly, the user can move the exposed lever 805 up and down to allow the rotating cylinder 803 restricted by the block 802 to drive the front shaft 801 to rotate, and the front cam 701 to rotate. Under the connection of the pull rod 704, the rear cam 703 drives the rear shaft 702 to rotate, changing the deflection angle of the rear spoiler 705, and then using the rear spoiler 705 to block the upper or lower part of the air outlet assembly body 1, so that the airflow blowing from the inside of the air outlet assembly body 1 is guided by the air inlet guide cover 3 to the upper or lower part of the inside of the air duct shell 2, thereby realizing the upper and lower air outlet.

[0044] Finally, it should be noted that the above is only a preferred specific implementation method of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned specific implementation methods, those skilled in the art can still modify the technical solutions described in the aforementioned specific implementation methods or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel automobile hidden air outlet mechanism, comprising an air outlet assembly body (1), left and right air outlet mechanisms (6), up and down air outlet mechanisms (7) and an adjustment mechanism (8), characterized in that: The other side of the outer wall of the air outlet assembly body (1) is fixedly connected with a sealing ring (5); the outer wall of one side of the air outlet assembly body (1) is snap-connected with the air duct shell (2); the air duct shell (2) is interference-fitted with the air outlet assembly body (1) through a plurality of elastic sheets provided on the outer wall of the other side; the inner walls of the front end and rear end of the air duct shell (2) are snap-connected with the air outlet guide cover (4); the inner walls of the front end and rear end of the air outlet assembly body (1) are snap-connected with the air inlet guide cover (3); the outer wall of one side of the air inlet guide cover (3) is interference-fitted with the outer wall of the other side of the air outlet guide cover (4) through a plurality of elastic sheets; an adjusting mechanism (8) is provided inside the air duct shell (2); The regulating mechanism (8) includes a front shaft (801), the front end and the rear end of the outer wall of the front shaft (801) are both rotatably connected to the air outlet deflector (4) and the air duct housing (2), the outer wall of the front shaft (801) is slidably connected to a rotating cylinder (803), the middle part of the outer wall of one side of the rotating cylinder (803) is fixedly connected to an exposed lever (805), the interior of the air outlet assembly body (1) is provided with left and right air outlet mechanism (6) linkage rods (606), the The air outlet assembly body (1), the air duct housing (2), the air inlet guide cover (3) and the air outlet guide cover (4) are all rotatably connected to a plurality of rotating rods (604) on one side near the center of the linkage link (606); the rotating rods (604) are all hingedly connected to the linkage link (606); the upper end and the lower end of the outer wall of the rotating rod (604) are fixedly connected to left and right spoilers (605); and the middle part of one of the rotating rods (604) is fixedly connected to a gear (603); The outer wall of the rod body of the front shaft (801) is slidably connected to a connecting slider (601), and the outer wall on the other side of the connecting slider (601) is fixedly connected to a rack (602). The front end of the air outlet assembly body (1) is provided with an upper and lower air outlet mechanism (7), and the upper and lower air outlet mechanism (7) includes a pull rod (704). The front end of the front shaft (801) is fixedly connected to a front cam (701). The front end and the other side of the rear end inner wall of the air outlet assembly body (1) are both rotatably connected to a rear shaft (702), the front end of the rear shaft (702) is fixedly connected to a rear cam (703), and the outer wall on the other side of the rear shaft (702) is fixedly connected to a rear spoiler (705).

2. A novel automobile hidden air outlet mechanism according to claim 1, characterized in that: An adjustment opening (806) is provided in the middle of an outer wall of one side of the air outlet deflector (4), and the exposed lever (805) passes through the adjustment opening (806) to the outside of the air outlet deflector (4).

3. The novel automobile hidden air outlet mechanism according to claim 1 is characterized in that: Four clamping blocks (802) are fixedly connected to the middle of the outer wall of the front shaft (801), and four clamping grooves (804) are opened on the inner wall of the rotating cylinder (803), and the clamping grooves (804) are clamped and connected with the clamping blocks (802).

4. The novel automobile hidden air outlet mechanism according to claim 1 is characterized in that: A first limiting frame (608) is fixedly connected to one side of the middle portion of the upper outer wall of the air outlet assembly body (1), and a first limiting piece (607) is fixedly connected to the upper end of one of the rotating rods (604).

5. The novel automobile hidden air outlet mechanism according to claim 1 is characterized in that: The rotating cylinder (803) is located in the middle of the connecting slider (601), and the rack (602) is meshed with the gear (603).

6. The novel automobile hidden air outlet mechanism according to claim 1, characterized in that: The top surface and the bottom surface inside the air duct housing (2) are both fixedly connected with limiting blocks (9), and the limiting blocks (9) are both slidably connected to the connecting slider (601).

7. The novel automobile hidden air outlet mechanism according to claim 1, characterized in that: The other side of the front end outer wall of the pull rod (704) is hingedly connected to the rear cam (703), and one side of the rear end outer wall of the pull rod (704) is hingedly connected to the front cam (701).

8. The novel automobile hidden air outlet mechanism according to claim 1, characterized in that: A second limiting piece (706) is fixedly connected to the outer wall on the other side of the rear cam (703), and a second limiting frame (707) is fixedly connected to the middle of the front end outer wall of the air outlet assembly body (1).

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