Lifting hinge for lower-layer bowl basket of dish-washing machine

Abstract

The utility model discloses a lifting hinge for a lower-layer dish basket of a dish-washing machine, which is characterized by comprising a fixed connecting rod, parallel connecting rods, a lifting connecting rod, a dish basket parallel connecting rod, a counter-pull air spring and a locking mechanism, and the parallel connecting rods and the lifting connecting rod are arranged in parallel and are connected with the fixed connecting rod and the dish basket parallel connecting rod to form a parallel four-rod mechanism. The bowl basket parallel connecting rod is provided with a groove piece, a bowl basket sliding rail is arranged in the groove piece, the side portion of the lower-layer bowl basket is connected with the bowl basket sliding rail, one end of the counter-pull air spring is connected with the fixed connecting rod, and the other end of the counter-pull air spring is connected with the lifting connecting rod. The locking mechanism comprises a locking connecting rod and a torsional spring, the locking connecting rod is rotationally connected with the parallel connecting rod, the torsional spring is connected to the locking connecting rod, the locking connecting rod is provided with a clamping piece, and the bowl basket parallel connecting rod is provided with a clamping position corresponding to the clamping piece. The device is simple in structure, good in stability and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchenware, and more particularly to a bowl basket lifting hinge of a dishwasher. Background Art

[0002] At present, in order to save space and improve aesthetics, most of the existing cabinets are equipped with dishwasher and disinfection cabinet functional modules, and the shelves for accommodating bowls in the dishwasher and disinfection cabinet are generally moved in and out of the cabinet in a horizontal push-pull manner. For the lower shelf designed at the bottom layer, the user will have to bend down to load or unload items. This may cause physical discomfort, especially for disabled people and / or the elderly. To this end, those skilled in the art have developed a shelf raising device, such as Chinese patent announcement number CN107580469B, which discloses a mechanism for unlocking the raised lower shelf in a dishwasher. The mechanism for unlocking the raised lower shelf is arranged in a device of the dishwasher (10), which can raise the lower shelf (11) from a lower position to an upper position and lock the raised lower shelf in the upper position. The raising device comprises a spring-loaded pivot arm device (12), one end of which is attached to the basin (13) of the dishwasher and the other end is attached to the lower rack (11), for raising the lower rack (11) from a lower position inside the basin to an upper position at least partially outside the basin; the raising device also comprises a locking mechanism (21), which is arranged between the spring-loaded pivot arm device (12) and the lower rack (11) and is configured to lock the spring-loaded pivot arm device when the lower rack has been raised to the upper position, thereby The lower shelf is fixed in the upper position; the mechanism for unlocking the raised lower shelf (11) is characterized in that it includes a lever (20) extending from the front of the lower shelf (11) along each side of the lower shelf to the locking mechanism (21) positioned on the corresponding side of the shelf (11), wherein a user operates the lever (20) located at the front of the raised lower shelf to cause the corresponding end of the lever to act on the locking mechanism (21) positioned on the corresponding side of the shelf to unlock the raised lower shelf (11), so that the lower shelf can be lowered to its lower position. However, the disadvantage is that the lower shelf has to be manually lifted by the user when it is initially lifted. When the lower shelf has been raised to the upper position, the spring load provides traction, and the lower shelf is fixed in the upper position in combination with the locking mechanism. Therefore, when the load in the lower shelf is heavy, the elderly or children will feel weak when using it. In addition, since the spring load needs to be stretched during the lifting and lowering process of the lower shelf, it needs to be replaced and maintained after a period of use, which makes it inconvenient to use and operate, and its structure needs further improvement. Utility Model Content

[0003] The utility model aims to solve the deficiencies of the prior art and provide a stable, reliable, and easy-to-operate lower basket lifting hinge for a dishwasher.

[0004] The utility model adopts the following technical solutions to achieve the above-mentioned purpose: a lifting hinge for the lower bowl basket of a dishwasher, characterized in that it comprises a fixed connecting rod, a parallel connecting rod, a lifting connecting rod, a bowl basket parallel connecting rod, a reverse pulling gas spring, and a locking mechanism; the parallel connecting rod and the lifting connecting rod are arranged in parallel with each other, and are connected with the fixed connecting rod and the bowl basket parallel connecting rod to form a parallel four-bar mechanism; a groove is arranged on the bowl basket parallel connecting rod, a bowl basket slide rail is arranged in the groove, the side of the lower bowl basket is connected to the bowl basket slide rail, one end of the reverse pulling gas spring is connected to the fixed connecting rod, and the other end is connected to the lifting connecting rod.

[0005] The locking mechanism includes a locking link and a torsion spring. The locking link is rotatably connected to the parallel link. The torsion spring is connected to the locking link. The locking link is provided with a card. The bowl basket parallel link is provided with a card position corresponding to the card. The flipping angle of the lifting link is locked by the card and the card is engaged with the card position.

[0006] As a further illustration of the above scheme, the parallel connecting rod is provided with a slot, and the card is movably arranged in the slot, and the slot can guide and limit the card up and down; and through the elastic force of the torsion spring, the card can be clamped in the clamping position of the bowl basket parallel connecting rod.

[0007] Furthermore, the bowl-basket parallel connecting rod is provided with a vertically arranged chuck, and a fan-shaped portion is provided at the end of the chuck. The clamping positions corresponding to the card are located on both sides of the fan-shaped portion. The card can move close to the arc edge of the fan-shaped portion, and the card is movably clamped on one side of the fan-shaped portion.

[0008] Furthermore, the fan-shaped portion corresponds to a central angle of 90 degrees, so that the lifting link and the parallel link can be arranged vertically and horizontally.

[0009] Furthermore, a positioning baffle is provided on the side of the lifting link, the positioning baffle is bent and extended outward, and the parallel link is movably stopped on the positioning baffle.

[0010] Furthermore, a sliding sleeve is arranged in the groove member, the bowl basket guide rail is arranged on the sliding sleeve, and the lower bowl basket is connected and fixed to the bowl basket guide rail.

[0011] Furthermore, the end of the fixed connecting rod is plate-shaped, and the parallel connecting rod and the lifting connecting rod are distributed up and down and are respectively hinged to the end of the fixed connecting rod.

[0012] Furthermore, the middle portion of the lifting connecting rod protrudes outward and extends to form a triangular plate portion, and the piston rod of the tension gas spring is axially connected to the triangular plate portion.

[0013] The beneficial effects that can be achieved by the utility model by adopting the above technical solution are:

[0014] The utility model adopts a lower bowl basket lifting hinge structure of a dishwasher which is mainly composed of a fixed connecting rod, a parallel connecting rod, a lifting connecting rod, a bowl basket parallel connecting rod, a reverse pulling gas spring and a locking mechanism. The parallel connecting rod, the lifting connecting rod, the fixed connecting rod and the bowl basket parallel connecting rod form a parallel four-bar mechanism, which can realize the change of the upper and lower positions of the lower bowl basket by swinging. Combined with the locking mechanism, the lower bowl basket can be locked after it rises to a preset position, and has good stability. Moreover, when the lower bowl basket needs to be lowered, the locking mechanism can be manually opened to push the lower bowl basket to descend and reset, which is easy to operate and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the lifting hinge of the bottom basket of the dishwasher in the lifting state of the utility model.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the lifting hinge of the bottom bowl basket of the dishwasher of the present invention in the lifted state.

[0017] Figure 3 It is a schematic diagram of the structure of the bottom basket lifting hinge of the dishwasher of the present invention in the closed state.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the bottom bowl basket lifting hinge of the dishwasher of the present invention in the closed state.

[0019] Figure 5 This is a schematic diagram of the installation structure of the bottom basket lifting hinge of the dishwasher in the closed state.

[0020] Figure 6 This is a schematic diagram of the three-dimensional installation structure of the bottom basket lifting hinge of the dishwasher in the closed state.

[0021] Figure 7 This is a schematic diagram of the installation structure of the bottom basket lifting hinge of the dishwasher in the unlocked state.

[0022] Figure 8 This is a schematic diagram of the three-dimensional installation structure of the bottom basket lifting hinge of the dishwasher in the unlocked state.

[0023] Fig. 9 This is a structural schematic diagram of the lifting process of the bottom basket lifting hinge of the dishwasher.

[0024] Fig.10 This is a three-dimensional structural schematic diagram of the lifting process of the bottom basket lifting hinge of the dishwasher.

[0025] Fig.11 This is a structural diagram of the lifting and locking state of the lifting hinge of the bottom basket of a dishwasher.

[0026] Fig.12It is a three-dimensional structural diagram of the lifting and locking state of the lifting hinge of the bottom bowl basket of the dishwasher.

[0027] Explanation of the reference numerals: 1, cabinet body 2, upper basket slide rail 3, upper basket 4, lower basket lifting hinge 4-1, fixed link 4-2, parallel link 4-21, slot 4-22, rotation fulcrum 4-3, lifting link 4-31, triangular plate portion 4-32, positioning baffle 4-4, basket parallel link 4-41, slot 4-42, basket slide rail 4-43, sleeve 4-44, chuck 4-441, fan-shaped portion 4-5, reverse gas spring 4-6, locking mechanism 4-61, locking link 4-62, card 5, lower basket. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, "at least" means one or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise specified and limited, the terms "assembly", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the utility model, unless otherwise specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "below" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the height of the second feature. A first feature being "above", "below" and "below" a second feature includes that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the second feature.

[0032] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, and cannot be understood as limiting the utility model.

[0033] like Figure 1-Figure 12 As shown, the utility model is a lower basket lifting hinge for a dishwasher, which is installed in pairs on the inner wall of the cabinet body of the dishwasher. The dishwasher is structurally provided with an upper basket and a lower basket. The upper basket is a fixed installation structure, and its up and down position is not adjustable, while the lower basket is used in conjunction with the lower basket lifting hinge to realize the lifting and translation functions. In this embodiment, the dishwasher includes a cabinet body 1, an upper basket slide rail 2, an upper basket 3, a lower basket lifting hinge 4, and a lower basket 5. The upper basket 3 is connected to the upper basket slide rail 2, and the upper basket slide rail 2 is arranged on the inner wall of the cabinet body 1; the lower basket lifting hinge 4 is arranged below the upper basket slide rail 2, and the lower basket lifting hinge is installed on the inner wall of the cabinet body 1, and the lower basket 5 is connected to the lower basket lifting hinge 4.

[0034] The lower bowl basket lifting hinge 4 structurally includes a fixed link 4-1, a parallel link 4-2, a lifting link 4-3, a bowl basket parallel link 4-4, a back-pull gas spring 4-5, and a locking mechanism 4-6. The fixed link 4-1 is fastened to the inner wall of the cabinet body, and the parallel link 4-2 and the lifting link 4-3 are arranged parallel to each other and connected with the fixed link 4-1 and the bowl basket parallel link 4-4 to form a parallel four-bar mechanism. In this embodiment, the end of the fixed link 4-1 is plate-shaped, and the parallel link 4-2 and the lifting link 4-3 are distributed up and down and are respectively hinged to the end of the fixed link 4-1. One end of the back-pull gas spring 4-5 is connected to the fixed link 4-1, and the other end is connected to the lifting link 4-3; in this embodiment, the middle part of the lifting link 4-3 protrudes outward and extends to form a triangular plate portion 4-31, and the piston rod of the back-pull gas spring 4-5 is axially connected to the triangular plate portion 4-31. The connection position of the lifting link 4-3 and the fixed link 4-1 forms a fulcrum. When the tension F1 of the reverse gas spring acts on the triangular plate, a vertical force F2 is formed on the main body of the lifting link, so that the lifting link is lifted up. A positioning baffle 4-32 is provided on the side of the lifting link 4-3. The positioning baffle is bent and extended outward. The parallel link 4-2 is movably stopped on the positioning baffle 4-32 to prevent the lifting link and the parallel link from intersecting and interfering.

[0035] A groove 4-41 is provided on the bowl basket parallel link 4-4, and a bowl basket slide rail 4-42 is provided on the groove. In this embodiment, a sliding sleeve 4-43 is provided in the groove, and the bowl basket guide rail 4-42 is provided on the sliding sleeve 4-43. The side of the lower bowl basket 5 is connected and fixed to the bowl basket guide rail 4-42. Through the telescopic movement of the bowl basket guide rail, the horizontal push-in or horizontal pull-out function of the lower bowl basket can be realized. The locking mechanism 4-6 includes a locking link 4-61 and a torsion spring. The locking link is rotatably connected to the parallel link. The torsion spring is connected to the locking link. The locking link is provided with a card 4-62. The bowl basket parallel link 4-4 is provided with a card position corresponding to the card. Through the card and the card position, the flip angle of the lifting link is locked. The bowl-basket parallel link is provided with a vertically arranged chuck 4-44, and a fan-shaped portion 4-441 is provided at the end of the chuck. The card positions corresponding to the card are located on both sides of the fan-shaped portion. The card can move close to the arc edge of the fan-shaped portion, and the card is movably connected to one side of the fan-shaped portion. In this embodiment, the fan-shaped portion corresponds to a central angle of 90 degrees, so that the lifting link and the parallel link can be arranged vertically and horizontally.

[0036] The parallel link 4-2 is provided with a slot 4-21, and the card 4-62 is integrated with the locking link 4-61 and is bent outward at the end of the locking link. The card 4-62 is movably arranged in the slot 4-21, and the length of the slot is greater than the card. The slot can guide and limit the card up and down, so that the card can be out of the position when going up, and can be stuck in the position when going down; the parallel link 4-2 is provided with a rotating fulcrum 4-22 corresponding to the locking link, so that the locking link can swing, and the torsion spring is sleeved on the rotating fulcrum. Through the elastic force of the torsion spring, the locking link can be engaged with the position of the bowl and basket parallel link during the swinging process.

[0037] During use, in the initial state, the lower bowl basket is hidden in the cabinet, and the reverse gas spring force F1 acts to transmit the force in the F2 direction to the lifting link, and it is always in a closed state; the locking link locks the closed state, and the locking link locks the lifting hinge of the lower bowl basket under the action of the torsion spring.

[0038] In the unlocked state, the bowl basket is pulled outward to the bottom, driving the locking link to move and enter the unlocked state.

[0039] During the lifting process, when the bowl basket continues to be pulled outward by 20 mm, when the axis of the reverse-pull gas spring passes the fulcrum, the lifting link changes the direction of the F2 force under the action of the reverse-pull gas spring force F1 and lifts upward.

[0040] In the lifting locking state, after lifting into place, the locking link is in the locked state, and the object placed will not fall down due to excessive weight; when closing, first release the locking state and close it with human assistance.

[0041] It is worth noting that the lower basket lifting hinge structure can be used not only in dishwashers but also in sterilizing cabinets.

[0042] Compared with the prior art, the utility model realizes the change of the upper and lower positions of the lower bowl basket by swinging, and the power for the lower bowl basket to rise is provided by the reverse pulling gas spring. After the lower bowl basket rises to the preset position, it can be locked by the locking mechanism, and the stability is good. Moreover, when the lower bowl basket needs to be lowered, the locking mechanism can be manually opened to push the lower bowl basket to fall and reset, and the operation is convenient.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A lower basket lifting hinge for a dishwasher, characterized in that: It includes a fixed link, a parallel link, a lifting link, a bowl basket parallel link, a back-pull gas spring, and a locking mechanism. The parallel link and the lifting link are arranged in parallel with each other and connected with the fixed link and the bowl basket parallel link to form a parallel four-bar mechanism. A groove is arranged on the bowl basket parallel link, and a bowl basket slide rail is arranged in the groove. The side of the lower bowl basket is connected to the bowl basket slide rail. One end of the back-pull gas spring is connected to the fixed link, and the other end is connected to the lifting link. The locking mechanism comprises a locking link and a torsion spring. The locking link is rotatably connected to the parallel link. The torsion spring is connected to the locking link. The locking link is provided with a card. The bowl-basket parallel link is provided with a card position corresponding to the card.

2. A dishwasher lower basket lifting hinge according to claim 1, characterized in that: The parallel connecting rod is provided with a slot hole, and the card is movably arranged in the slot hole.

3. A dishwasher lower basket lifting hinge according to claim 1, characterized in that: The bowl-basket parallel connecting rod is provided with a vertically arranged chuck, and a fan-shaped part is provided at the end of the chuck. The clamping positions corresponding to the card are located on both sides of the fan-shaped part. The card can move close to the arc edge of the fan-shaped part, and the card is movably clamped on one side of the fan-shaped part.

4. A dishwasher lower basket lifting hinge according to claim 3, characterized in that: The sector portion corresponds to a central angle of 90 degrees.

5. The lower basket lifting hinge of a dishwasher according to claim 1, characterized in that: A positioning baffle is arranged on the side of the lifting connecting rod, the positioning baffle is bent and extended outward, and the parallel connecting rod is movably stopped on the positioning baffle.

6. A dishwasher lower basket lifting hinge according to claim 1, characterized in that: A sliding sleeve is arranged in the groove piece, a bowl basket guide rail is arranged on the sliding sleeve, and the lower bowl basket is connected and fixed to the bowl basket guide rail.

7. A dishwasher lower basket lifting hinge according to claim 1, characterized in that: The end of the fixed connecting rod is in a plate shape, and the parallel connecting rod and the lifting connecting rod are distributed up and down and are respectively hinged to the end of the fixed connecting rod.

8. A dishwasher lower basket lifting hinge according to claim 1 or 7, characterized in that: The middle part of the lifting connecting rod protrudes outwards and extends to form a triangular plate part, and the piston rod of the pulling gas spring is axially connected with the triangular plate part.

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