Built-in drying air duct of washing machine

Abstract

The utility model discloses a built-in drying air duct of a washing machine, which comprises a lower air duct and an upper air duct which form a pipeline with a rectangular section, the connecting assembly comprises rotary connecting pieces rotationally connected to the two sides of the lower air duct, movable connecting pieces elastically connected to one ends of the rotary connecting pieces, clamping holes formed in the surfaces of the movable connecting pieces, clamping rods fixed to the surface of the upper air duct and connected with the clamping holes in an inserted mode, and threaded rotary knobs in threaded connection to the top ends of the clamping rods. Through the designed connecting assembly, the lower air duct and the upper air duct can be fixedly connected, during disassembly and assembly, only a threaded rotary knob needs to be screwed off, then a movable connecting piece is pulled upwards to be separated from a clamping rod, then the lower air duct and the upper air duct can be unfixed by overturning and moving away from the outer surface of the upper air duct, and the lower air duct and the upper air duct are easily disassembled; through the structural design, external auxiliary tools are not needed during disassembly and assembly, the operation steps are rapid and convenient, and convenience is provided for personnel.

Description

Technical Field

[0001] The utility model belongs to the technical field of washing machine accessories, and particularly relates to an internal drying air duct of a washing machine. Background Technique

[0002] A washing machine is a very common household appliance. With the development of technology, many washing machines have an automatic drying function. The component that plays the drying role is the internal drying structure, which generally includes a fan, a duct, and a heating tube. When in use, the fan starts to generate air flow, which enters the heating tube through the duct and is heated inside the heating tube. The heated hot air is then transported to the surface of the clothes for drying. Inside the heating tube, there are wires and heating filaments. The wires supply power to the heating filaments for heating, thereby raising the temperature of the air flow. After long-term use of the heating tube, the dirt generated inside it will adhere to the surface of the wires or heating filaments, affecting the heating effect. Therefore, it is necessary to regularly disassemble the heating tube for cleaning.

[0003] Existing heating tubes are mostly assembled and closed with bolts. When disassembling and assembling, not only external auxiliary tools are needed, but also the bolts need to be repeatedly screwed. The disassembly and assembly are not convenient, and a large number of small bolts are prone to being lost. Therefore, it is necessary to design a new drying and heating air duct to solve this problem. Content of the Utility Model

[0004] The purpose of the utility model is to provide an internal drying air duct of a washing machine to solve the problem of inconvenient disassembly and assembly of the heating tube mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An internal drying air duct of a washing machine includes a lower air duct and an upper air duct, which form a pipe with a rectangular cross-section; a connecting component, including rotating connection pieces rotatably connected to both sides of the lower air duct, movable connection pieces elastically connected to one end of the rotating connection pieces, card holes opened on the surface of the movable connection pieces, card rods fixed on the surface of the upper air duct and inserted into the card holes, and threaded knobs threadedly connected to the tops of the card rods.

[0006] Preferably, the connecting component further includes a telescopic rod fixed to the bottom end of the movable connection piece, and the bottom end of the telescopic rod slides into the inside of the rotating connection piece.

[0007] Preferably, the connecting component further includes a fixed anti-detachment block fixed to the bottom end of the telescopic rod, and the telescopic rod and the fixed anti-detachment block form a T-shaped structure.

[0008] Preferably, the connecting component further includes a spring fixed between the bottom surface of the fixed anti-detachment block and the inner bottom of the rotating connection piece.

[0009] Preferably, the connection assembly further comprises convex strips fixed at both ends of the downwind duct and the upwind duct, a rubber strip fixed at one side of the convex strip, and a sealing groove opened on the surface of the opposite convex strip, and the rubber strip is inserted into the interior of the sealing groove.

[0010] Preferably, a power supply line is connected to one side of the downwind duct, and the power supply line leads to the interior of the downwind duct and the upwind duct.

[0011] Preferably, the rear ends of the downwind and upwind ducts are connected with air guide bends, a fan is provided at the tail end of the air guide bends, an assembly component is provided between the air guide bends and the downwind and upwind ducts, the assembly component includes a fixed embedded sleeve, a positioning block, a positioning groove, a threaded fastener and a threaded hole, the fixed embedded sleeve is fixed to the end of the air guide bend, the ends of the downwind and upwind duct are inserted into the interior of the fixed embedded sleeve, the positioning block is fixed on both sides of the downwind and upwind duct, and inserted into the positioning grooves opened on the inner wall of the fixed embedded sleeve, the threaded fasteners are installed on both sides of the fixed embedded sleeve, and are threadedly connected to the threaded holes opened on the positioning block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] Through the designed connection component, the down duct and the up duct can be fixedly connected. When disassembling and assembling, you only need to unscrew the threaded knob, then pull up the movable connecting piece to separate it from the clamping rod, and then flip it over and remove it from the outer surface of the upper duct to release the fixation between the down duct and the upper duct, and easily disassemble the down duct and the upper duct. Through the design of the above structure, there is no need to use external auxiliary tools during disassembly and assembly, and the operation steps are quick and convenient, which provides convenience for personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 For this utility model Figure 1 A magnified schematic diagram of area A in the middle;

[0016] Figure 3 For this utility model Figure 1 Frontal cross-sectional view of area A in the middle;

[0017] Figure 4 It is a front cross-sectional view of one end of the assembly component of the utility model;

[0018] In the figure: 100, a fan; 200, a wind guiding elbow; 300, a lower air duct; 400, an upper air duct; 500, a connecting component; 501, a rotating connecting piece; 502, a telescopic rod; 503, a movable connecting piece; 504, a clamping rod; 505, a threaded knob; 506, a clamping hole; 507, a fixed anti - detachment block; 508, a spring; 509, a rib; 5010, a rubber strip; 5011, a sealing groove; 600, a power supply wire; 700, an assembling component; 701, a fixed embedding sleeve; 702, a positioning block; 703, a positioning groove; 704, a threaded fastener; 705, a threaded hole. Detailed implementation mode

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0020] Embodiment

[0021] Please refer to Figures 1 to 4 , which is an embodiment of the present invention. This embodiment provides a technical solution: a built - in drying air duct for a washing machine, including a lower air duct 300 and an upper air duct 400, which form a pipe with a rectangular cross - section; a connecting component 500, including rotating connecting pieces 501 rotatably connected to both sides of the lower air duct 300, movable connecting pieces 503 elastically connected to one end of the rotating connecting pieces 501, clamping holes 506 opened on the surface of the movable connecting pieces 503, clamping rods 504 fixed on the surface of the upper air duct 400 and inserted into the clamping holes 506, and threaded knobs 505 threadedly connected to the top ends of the clamping rods 504. The connecting component 500 further includes telescopic rods 502 fixed to the bottom ends of the movable connecting pieces 503. The rotating connecting pieces 501 and the movable connecting pieces 503 are telescopically connected through the telescopic rods 502. The bottom ends of the telescopic rods 502 slide into the interiors of the rotating connecting pieces 501. The connecting component 500 further includes fixed anti - detachment blocks 507 fixed to the bottom ends of the telescopic rods 502. The telescopic rods 502 and the fixed anti - detachment blocks 507 form a T - shaped structure to prevent the telescopic rods 502 from falling off. The connecting component 500 further includes springs 508 fixed between the bottom surfaces of the fixed anti - detachment blocks 507 and the inner bottoms of the rotating connecting pieces 501. The springs 508 provide telescopic elastic forces for the telescopic rods 502.

[0022] In this embodiment, preferably, the connecting component 500 further includes a rib 509 fixed at both ends of the lower air duct 300 and the upper air duct 400, a rubber strip 5010 fixed on one side of the rib 509, and a sealing groove 5011 opened on the surface of the opposite rib 509. The rubber strip 5010 is snapped into the inside of the sealing groove 5011 to improve the connection tightness between the lower air duct 300 and the upper air duct 400.

[0023] In this embodiment, preferably, a power supply line 600 is connected to one side of the lower air duct 300. The power supply line 600 extends into the inside of the lower air duct 300 and the upper air duct 400. An electric heating wire is provided between the lower air duct 300 and the upper air duct 400, and the power supply line 600 can supply power to the electric heating wire.

[0024] In this embodiment, preferably, a wind guiding elbow 200 is connected to the rear ends of the lower air duct 300 and the upper air duct 400. A fan 100 is arranged at the tail end of the wind guiding elbow 200. After the fan 100 is started, the generated air flow enters the inside of the upper air duct 400 and the lower air duct 300 through the wind guiding elbow 200. An assembling component 700 is arranged between the wind guiding elbow 200 and the lower air duct 300 and the upper air duct 400. The assembling component 700 includes a fixed insertion sleeve 701, a positioning block 702, a positioning groove 703, a threaded fastener 704 and a threaded hole 705. The fixed insertion sleeve 701 is fixed at the end of the wind guiding elbow 200. The ends of the lower air duct 300 and the upper air duct 400 are inserted into the inside of the fixed insertion sleeve 701 to complete the preliminary positioning connection. The positioning block 702 is fixed on both sides of the lower air duct 300 and the upper air duct 400 and is inserted into the positioning groove 703 opened on the inner wall of the fixed insertion sleeve 701 to position and reinforce the connection between the lower air duct 300, the upper air duct 400 and the wind guiding elbow 200. The threaded fastener 704 is installed on both sides of the fixed insertion sleeve 701 and is in threaded connection with the threaded hole 705 opened on the positioning block 702, so as to fix the upper air duct 400 and the lower air duct 300 at the end of the wind guiding elbow 200.

[0025] Although the embodiments of the present invention have been shown and described (see the above detailed description), for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A washing machine with a built-in drying air duct, characterized in that: include The downwind duct (300) and the upwind duct (400) form a pipeline with a rectangular cross section; The connection assembly (500) comprises a rotating connection piece (501) rotatably connected to both sides of the lower air duct (300), a movable connection piece (503) elastically connected to one end of the rotating connection piece (501), a clamping hole (506) provided on the surface of the movable connection piece (503), a clamping rod (504) fixed on the surface of the upper air duct (400) and plugged into the clamping hole (506), and a threaded knob (505) threadedly connected to the top of the clamping rod (504).

2. A washing machine with a built-in drying air duct according to claim 1, characterized in that: The connection assembly (500) further comprises a telescopic rod (502) fixed to the bottom end of the movable connection piece (503), and the bottom end of the telescopic rod (502) slides into the interior of the rotating connection piece (501).

3. A washing machine with a built-in drying air duct according to claim 2, characterized in that: The connection assembly (500) further comprises a fixed anti-dropping block (507) fixed to the bottom end of the telescopic rod (502), and the telescopic rod (502) and the fixed anti-dropping block (507) form a T-shaped structure.

4. A washing machine with a built-in drying air duct according to claim 3, characterized in that: The connecting assembly (500) further comprises a spring (508), wherein the spring (508) is fixed between the bottom surface of the fixed anti-slip block (507) and the inner bottom of the rotating connecting piece (501).

5. The washing machine with built-in drying duct according to claim 1, characterized in that: The connection assembly (500) further comprises convex strips (509) fixed at both ends of the lower air duct (300) and the upper air duct (400), a rubber strip (5010) fixed on one side of the convex strip (509), and a sealing groove (5011) formed on the surface of the opposite convex strip (509), wherein the rubber strip (5010) is inserted into the interior of the sealing groove (5011).

6. A washing machine with a built-in drying air duct according to claim 1, characterized in that: A power supply line (600) is connected to one side of the downwind duct (300), and the power supply line (600) leads to the interior of the downwind duct (300) and the upwind duct (400).

7. A washing machine with a built-in drying air duct according to claim 1, characterized in that: The rear ends of the downwind duct (300) and the upwind duct (400) are connected with an air guide bend (200), and a fan (100) is arranged at the tail end of the air guide bend (200). An assembly component (700) is arranged between the air guide bend (200) and the downwind duct (300) and the upwind duct (400). The assembly component (700) comprises a fixed embedded sleeve (701), a positioning block (702), a positioning groove (703), a threaded fastener (704) and a threaded hole (705). The fixed embedded sleeve (701) is provided with a fan (100) and a fan (100) is arranged at the tail end of the air guide bend (200). 01) is fixed on the end of the air guide bend (200), the ends of the downwind duct (300) and the upwind duct (400) are inserted into the interior of the fixed embedded sleeve (701), the positioning block (702) is fixed on both sides of the downwind duct (300) and the upwind duct (400), and is inserted into the positioning groove (703) opened on the inner wall of the fixed embedded sleeve (701), and the threaded fastener (704) is installed on both sides of the fixed embedded sleeve (701) and is threadedly connected with the threaded hole (705) opened on the positioning block (702).

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