Safety lock mechanism for dish basket of dish-washing machine

Abstract

The utility model discloses a dish-washing machine dish basket safety lock mechanism which is characterized in that the dish-washing machine dish basket safety lock mechanism comprises a dish basket installation base, an unlocking lever, a lock pin connecting rod connected with a dish basket lifting hinge, a sliding rail support assembly and a torsion spring, the dish basket installation base is connected to the sliding rail assembly, and a dish basket fixing piece is arranged on the sliding rail support assembly; a lock pin I and a lock pin II are respectively arranged on two end sides of the lock pin connecting rod; the bowl basket mounting seat is provided with a slot corresponding to the unlocking lever, a lever shaft is arranged in the slot, and the unlocking lever is rotationally connected with the bowl basket mounting seat through the lever shaft; the bowl basket mounting seat is provided with a first retaining lock groove and a second retaining lock groove, the end of the unlocking lever extends to the first retaining lock groove, the first retaining lock groove corresponds to the first lock pin, and the second retaining lock groove corresponds to the second lock pin. The bowl basket fixing piece is provided with a bowl basket fixing piece lock pin groove and a torsion spring shaft, the torsion spring is wound on the torsion spring shaft, and one end of the torsion spring abuts against the first lock pin. The device is simple in structure, good in stability and easy and convenient to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of dish washer, more specifically to a dish washer basket safety lock mechanism. BACKGROUND

[0002] At present, in order to save space and improve the aesthetic degree, most of the existing cabinets are provided with dish washer and disinfection cabinet function modules, and the shelves for containing bowls in the dish washer and disinfection cabinet are generally moved into and out of the cabinet in a horizontal sliding manner. For the lower shelf designed in the lowermost layer, the user will have to bend down to load or unload the articles. This may cause physical discomfort, especially for the disabled and / or the elderly. For this reason, the skilled person in the art has developed a shelf lifting device, such as Chinese patent publication No. CN107580469B, which discloses a mechanism for unlocking a raised lower shelf in a dishwasher. The mechanism for unlocking the raised lower shelf is provided in a device of the dishwasher (10), which device is capable of raising the lower shelf (11) from a lower position to an upper position and locking the raised lower shelf in the upper position. The lifting device comprises a spring-loaded pivoting arm device (12) which is attached at one end to a tub (13) of the dishwasher and at the other end to the lower shelf (11) for raising the lower shelf (11) from a lower position inside the tub to an upper position at least partially outside the tub, and a locking mechanism (21) arranged between the spring-loaded pivoting arm device (12) and the lower shelf (11) and configured to lock the spring-loaded pivoting arm device when the lower shelf has been raised to the upper position, thereby fixing the lower shelf in the upper position. The mechanism for unlocking the raised lower shelf (11) is characterized by comprising a lever (20) extending from a front portion of the lower shelf (11) along each side of the lower shelf to the locking mechanism (21) positioned on the respective side of the shelf (11), wherein operation of the lever (20) located at the front portion of the raised lower shelf by the user causes the respective end of the lever to act on the locking mechanism (21) positioned on the respective side of the shelf in order 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 entire unlocking structure is complex and inconvenient to operate, and its structure needs to be further improved. SUMMARY

[0003] The utility model discloses a stable and reliable, simple structure, convenient operation dish washer basket safety lock mechanism that solves the technical problems of prior art.

[0004] This utility model achieves the above-mentioned objective by adopting the following technical solution: a dishwasher basket safety lock mechanism, characterized in that it includes a basket mounting base, an unlocking lever, a locking pin connecting rod connected to the basket lifting hinge, a slide rail bracket assembly, and a torsion spring. The basket mounting base is connected to the slide rail assembly, and a basket fixing piece is provided on the slide rail bracket assembly. Locking pin one and locking pin two are respectively provided on both ends of the locking pin connecting rod. The basket mounting base is provided with a slot corresponding to the unlocking lever, and a lever shaft is provided in the slot. The unlocking lever is rotatably connected to the basket mounting base through the lever shaft.

[0005] The basket mounting base is provided with a first anti-reverse locking groove and a second anti-reverse locking groove. The end of the unlocking lever extends toward the first anti-reverse locking groove. The first anti-reverse locking groove corresponds to the first locking pin, and the second anti-reverse locking groove corresponds to the second locking pin. The basket fixing plate is provided with a basket fixing plate locking pin groove and a torsion spring shaft. The torsion spring is wound on the torsion spring shaft, and one end of the torsion spring presses against the first locking pin.

[0006] As a further explanation of the above scheme, the basket lifting hinge includes a fixed link, a parallel link, and a lifting link. The parallel link and the lifting link are respectively hinged between the fixed link and the basket fixing plate. A cylinder is connected between the fixed link and the parallel link. The locking pin link is hinged to the lifting link through the second locking pin. The lifting link is provided with a strip hole for the first locking pin to pass through.

[0007] Furthermore, the unlocking lever is equipped with an unlocking handle, and the end of the unlocking lever bends downward and extends into a hook shape, with the shape of the slot corresponding to the unlocking lever.

[0008] Furthermore, the end of the unlocking lever is provided with an outwardly extending stop protrusion. When the unlocking lever swings, the end of the unlocking lever can push the locking pin out of the anti-reverse locking groove, release the locked state of the basket lifting hinge, and the basket can return to its lower position.

[0009] Furthermore, the second locking pin and the first locking pin are arranged vertically.

[0010] Furthermore, the anti-reverse locking groove one includes an arc-shaped groove one and a bent groove and a horizontal guide groove one respectively disposed at both ends of the arc-shaped groove one. The bent groove is connected to the slot, and the horizontal guide groove one is parallel to the slide rail. The anti-reverse locking groove two includes a horizontal guide groove two and an arc-shaped groove two connected in sequence. The horizontal guide groove two is parallel to the horizontal guide groove one.

[0011] Furthermore, the basket fixing plate is provided with a torsion spring positioning plate, and a torsion spring is wound on the torsion spring positioning shaft. One end of the torsion spring presses against the locking pin, and the torsion spring positioning plate is provided with a slot to cooperate with the other end of the torsion spring.

[0012] The beneficial effects that can be achieved by adopting the above-mentioned technical solution in this utility model are as follows.

[0013] The utility model discloses a bowl basket safety lock structure which mainly comprises a bowl basket mounting seat, an unlocking lever, a lock pin connecting rod connected with a bowl basket lifting hinge, a slide rail support assembly and a torsion spring. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is bowl basket mounting structure schematic drawing of the utility model.

[0015] Figure 2 It is lower layer bowl basket mounting structure schematic drawing of the utility model.

[0016] Figure 3 It is lower layer bowl basket mounting structure schematic drawing of the utility model.

[0017] Figure 4 It is bowl basket lifting hinge structure schematic drawing.

[0018] Figure 5 It is lower layer bowl basket in storage state structure schematic drawing.

[0019] Figure 6 It is lower layer bowl basket unlocking lifting state structure schematic drawing.

[0020] Figure 7 It is in place and lock state structure schematic drawing.

[0021] Figure 8 It is unlocking reset state structure schematic drawing.

[0022] Explanation of reference numerals: 1, bowl basket lifting hinge 1-1, fixed connecting rod 1-2, parallel connecting rod 1-3, lifting connecting rod 2, upper layer bowl basket 3, lower layer bowl basket 4, slide rail assembly 5, dishwasher bowl basket safety lock mechanism 5-1, bowl basket mounting seat 5-11, slot 5-12, lever shaft 5-13, retreat stop lock groove one 5-14, retreat stop lock groove two 5-2, unlocking lever 5-21, unlocking handle 5-22, stop protruding edge 5-3, lock pin connecting rod 5-31, lock pin one 5-32, lock pin two 5-4, slide rail support assembly 5-41, bowl basket fixing piece 5-411, bowl basket fixing piece lock pin slot 5-412, torsional spring shaft 5-413, torsional spring positioning plate 5-5, torsional spring 6, air cylinder. DETAILED DESCRIPTION

[0023] In the description of the utility model, it needs to be explained that for the orientation words, if the terms "center", "transverse", "vertical", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the utility model.

[0024] In addition, if the terms "first" and "second" are used for description purposes only, they cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first" and "second" features defined can explicitly or implicitly include one or more of the features, and in the description of the utility model, the meaning of "at least" is one or more than one, unless otherwise explicitly specified and limited.

[0025] In the utility model, unless otherwise explicitly specified and limited, if the terms "assembly", "connection" and "connection" are used, they should be understood in a broad sense, for example, they can be fixedly connected, or they can be detachably connected, or integrally connected; they can be mechanically connected; they can be directly connected, or they can be connected through an intermediate medium; they can be connected internally between two elements. For ordinary skilled persons in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0026] In this utility model, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings, making the technical solution and beneficial effects of this utility model clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] like Figures 1-4 As shown, this utility model is a dishwasher rack safety lock mechanism. The dishwasher structurally includes a cabinet body, two rack lifting hinges 1 mounted on the inner wall of the cabinet body, an upper rack 2, a lower rack 3, a slide rail assembly 4, and a dishwasher rack safety lock mechanism 5. The upper rack 2 is a fixed installation structure, and its vertical position is not adjustable. The lower rack 3, in conjunction with the two rack lifting hinges 5, can achieve lifting and sliding functions. The lower rack, in conjunction with the slide rail assembly, can achieve storage and pull-out functions. The dishwasher rack safety lock mechanism controls the various states of the lower rack, including switching between a stored state, an unlocked lifting state, a lifted and locked state, and an unlocked return state.

[0029] The safety lock mechanism 5 of the dishwasher basket comprises a basket mounting seat 5-1, an unlocking lever 5-2, a lock pin connecting rod 5-3 connected with the basket lifting hinge, a slide rail support assembly 5-4, and a torsion spring 5-5. The basket mounting seat 5-1 is connected to the slide rail assembly 4. The slide rail support assembly 5-4 is provided with a basket fixing plate 5-41. The two ends of the lock pin connecting rod 5-3 are respectively provided with a lock pin one 5-31 and a lock pin two 5-32. The basket mounting seat 5-1 is provided with a corresponding slot 5-11 for the unlocking lever 5-2. The slot 5-11 is provided with a lever shaft 5-12. The unlocking lever 5-2 is rotationally connected to the basket mounting seat 5-1 through the lever shaft 5-12. The basket mounting seat 5-1 is provided with a retreat stop lock groove one 5-13 and a retreat stop lock groove two 5-14. The end of the unlocking lever extends to the retreat stop lock groove one. The retreat stop lock groove one corresponds to the lock pin one 5-31. The lock pin one can enter the retreat stop lock groove one. The retreat stop lock groove two corresponds to the lock pin two 5-32. The lock pin two can also enter the retreat stop lock groove two. The basket fixing plate 5-41 is provided with a basket fixing plate lock pin groove 5-411 and a torsion spring shaft 5-412. The torsion spring is arranged on the torsion spring shaft 5-412. One end of the torsion spring is pressed on the lock pin one. The lock pin two and the lock pin one are distributed in an up-down manner. The basket fixing plate 5-41 is provided with a torsion spring positioning plate 5-413. The torsion spring positioning plate is provided with a clamping groove and the other end of the torsion spring 5-5 is pressed and matched.

[0030] In the embodiment, the basket lifting hinge 1 comprises a fixed connecting rod 1-1, a parallel connecting rod 1-2, and a lifting connecting rod 1-3. The parallel connecting rod 1-2 and the lifting connecting rod 1-3 are respectively hingedly connected between the fixed connecting rod 1-1 and the basket fixing plate 5-41. A gas cylinder 6 is connected between the fixed connecting rod and the parallel connecting rod. The lock pin connecting rod 5-3 is hingedly connected to the lifting connecting rod through the lock pin two. The lifting connecting rod is provided with a strip-shaped hole through which the lock pin one passes. The unlocking lever 5-2 is provided with an unlocking handle 5-21. The end of the unlocking lever is bent downward to extend into a hook shape. The shape of the slot corresponds to the unlocking lever. The end of the unlocking lever is provided with an outwardly extending stop protrusion 5-22. When the unlocking lever swings, the end of the unlocking lever can push the lock pin one out of the retreat stop lock groove one, thereby releasing the locked state of the basket lifting hinge.

[0031] In the operation process, as shown in Figure 5 , the lower basket is in a storage state. Under the action of the elastic force of the torsion spring, the lock pin one moves to the left, locking the fixed connecting rod and the lifting connecting rod, so that the entire basket lifting hinge is locked and cannot be lifted. During the pulling-out process of the lower basket, the basket lifting hinge is locked, so that the lower basket can only be pulled out and pushed in. It is ensured that the lower basket cannot be completely pulled out and cannot be lifted, so that the upper and lower baskets do not collide.

[0032] As shown in Figure 6As shown, the lower basket is unlocked and lifted, the lower basket is completely pulled out, the stop lock groove one knocks the lock pin one, the locked lifting connecting rod is released, and the lower basket can be lifted upward under the action of the basket lifting hinge; in the lifting and lifting in place state, the lock pin one and the lock pin two always move in the stop lock groove one and the stop lock groove two respectively, the lower basket cannot move in and out, and the upper and lower baskets are prevented from colliding.

[0033] As shown in the drawing, Figure 7 As shown, the lifting is in place and locked state, the lifting is in place under the action of the torsion spring, the lock pin one moves upward, the fixed connecting rod and the lifting connecting rod are locked, the lifting mechanism is locked and cannot descend.

[0034] As shown in the drawing, Figure 8 As shown, the unlocking reset state, the unlocking handle is pulled up, the lock pin one moves downward, the fixed connecting rod and the lifting connecting rod are unlocked, and the downward reset movement can be performed.

[0035] Compared with the prior art, the utility model discloses a control swing, push and pull of the unlocking handle, and the switching of each state (including the storage state, the unlocking and lifting state, the lifting in place and locking state and the unlocking reset state) of the lower basket can be realized, and the whole structure is simple and convenient to operate.

[0036] The preferred embodiments of the utility model are described above, and it should be pointed out that, for ordinary skilled persons in the art, without departing from the creative concept of the utility model, a plurality of modifications and improvements can be made, and these all belong to the protection range of the utility model.

Claims

1. A dishwasher basket safety lock mechanism, characterized in that, It includes bowl basket mounting seat, unlocking lever, lock pin connecting rod connected with bowl basket lifting hinge, slide rail support assembly, torsional spring, bowl basket mounting seat is connected to slide rail assembly, slide rail support assembly is provided with bowl basket fixing sheet, both ends of lock pin connecting rod are respectively provided with lock pin one and lock pin two; Bowl basket mounting seat is provided with a corresponding slot of unlocking lever, the slot is provided with a lever shaft, the unlocking lever is rotatably connected with the bowl basket mounting seat through the lever shaft; The bowl basket mounting seat is provided with a retreat stop lock groove one and a retreat stop lock groove two, the end of the unlocking lever extends to the retreat stop lock groove one, the retreat stop lock groove one corresponds to the lock pin one, and the retreat stop lock groove two corresponds to the lock pin two; The bowl basket fixing sheet is provided with a bowl basket fixing sheet lock pin groove and a torsional spring shaft, the torsional spring is wound on the torsional spring shaft, and one end of the torsional spring abuts against the lock pin one.

2. A dishwasher basket safety lock mechanism according to claim 1, characterized in that, The bowl basket lifting hinge includes a fixed connecting rod, a parallel connecting rod and a lifting connecting rod, the parallel connecting rod and the lifting connecting rod are respectively hinged between the fixed connecting rod and the bowl basket fixing sheet, a gas cylinder is connected between the fixed connecting rod and the parallel connecting rod, the lock pin connecting rod is hinged with the lifting connecting rod through the lock pin two, and the lifting connecting rod is provided with a strip-shaped hole through which the lock pin one passes.

3. The mechanism according to claim 1, wherein The unlocking lever is provided with an unlocking handle, the end of the unlocking lever is bent downward to extend into a hook shape, and the shape of the slot corresponds to the unlocking lever.

4. The mechanism according to claim 1, wherein The end of the unlocking lever is provided with an outwardly extending stop protruding edge.

5. The mechanism according to claim 1, wherein The lock pin two and the lock pin one are distributed in an up-down manner.

6. The mechanism according to claim 1, wherein The retreat stop lock groove one includes an arc-shaped groove one, a bending groove position and a horizontal guide groove one which are separately arranged at both ends of the arc-shaped groove one, the bending groove position is communicated with the slot, and the horizontal guide groove one is parallel to the slide rail; The retreat stop lock groove two includes a horizontal guide groove two and an arc-shaped groove two which are sequentially connected, and the horizontal guide groove two is parallel to the horizontal guide groove one.

7. The mechanism according to claim 1, wherein The bowl basket fixing sheet is provided with a torsional spring positioning plate, the torsional spring is wound on the torsional spring positioning shaft, one end of the torsional spring abuts against the lock pin, and the torsional spring positioning plate is provided with a clamping groove which abuts against the other end of the torsional spring.

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