A dishwasher door balance adjustment system

Abstract

The present invention discloses a dishwasher door balance adjustment system, comprising an adjustment spring installed at the bottom of the dishwasher, one end of the adjustment spring is connected to a fixed block, the fixed block is connected to a driving device for driving the movement of the adjustment spring, the other end of the adjustment spring is connected to a spring connecting rope, the spring connecting rope is connected to a hinge of a dishwasher door panel, and the spring connecting rope is connected to a tension testing device. The present invention can automatically adjust the tension of the adjustment spring according to the different door panels installed, so that the same adjustment spring can adapt to doors of different weights, reduce the number of new door springs, improve the modularity of the spring adjustment system, and reduce the cost of the entire spring adjustment system; the driving structure is simple, the adjustment is convenient, and the time-consuming problem of manual adjustment is solved; the fixed block connected to the rear end of the spring has a clamping and anti-slipping function, which can adapt to the needs of door panels of different weights, solves the problem of spring slipping out under force, and improves the safety and stability of the door body.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and more particularly to a dishwasher door balance adjustment system. Background Art

[0002] For fully embedded household dishwashers, when they are installed in the user's home and equipped with exterior door panels, the tension of the door body needs to be adjusted according to the weight of the exterior door panel so that the door body can be balanced and stable at all angles when opening and closing. However, the common door adjustment mechanism in the prior art has a relatively complex installation structure, many installation parts, low assembly efficiency, and occupies a lot of space inside the dishwasher. There are also some simple door adjustment mechanisms, which are complicated to operate and require the disassembly and assembly of the dishwasher side panels and the manual disassembly and assembly of the door tension spring to adjust the door body rebound force. And when installing or replacing the door panel, the installer or user needs to repeatedly adjust the position during the adjustment process to adapt to different door body weights, and the debugging time is long, which affects the installation time and user experience. When the heavy decorative exterior door body is installed, the door body spring is adjusted to a certain degree, and the spring is subjected to a large force. There is a problem of the spring coming out of the buckle during the door opening and closing process, resulting in the free fall of the entire door body when the door is opened, and there is a risk of damage to the door body and injury to people. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a dishwasher door balance adjustment system, which has a simple structure and is easy to adjust.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a dishwasher door balance adjustment system, comprising an adjustment spring installed at the bottom of the dishwasher, one end of the adjustment spring is connected to a fixed block, the fixed block is connected to a driving device for driving it to move, the other end of the adjustment spring is connected to a spring connecting rope, the spring connecting rope is connected to a hinge of the dishwasher door panel, and the spring connecting rope is connected to a tension testing device.

[0005] The adjusting spring is installed on both sides of the dishwasher door, and the spring connecting rope is connected to the hinge of the door through a pulley, so that when the door is opened, it can remain suspended due to the tension of the adjusting spring. When the rear end of the adjusting spring of the door is connected to the fixed block, the rear end of the adjusting spring is locked to prevent the adjusting spring from falling off due to excessive force.

[0006] The driving motor is installed at the bottom of the dishwasher above the rear end of the adjusting spring. The transition gear is installed through the gear shaft. The upper and lower parts of the transition gear are respectively meshed with the driving gear and the driven gear. The three gears are arranged up and down to reduce the occupied space in the dishwasher. And it is driven by the transition gear, which does not affect the gear ratio of the driving gear and the driven gear, and at the same time makes the driving gear and the driven gear rotate in the same direction.

[0007] The tension testing device connected to the rear end of the spring connecting rope can measure the tension of doors of different weights after opening the door, and adjust the operation of the driving motor according to the measured tension value, thereby driving the adjusting screw to rotate, so that the fixed block threadedly connected thereto can be moved, thereby driving the adjusting spring to move, and adjusting the tension of the adjusting spring. The present invention can automatically adjust the tension of the adjusting spring according to the different installed door panels, so that the same adjusting spring can adapt to doors of different weights, reduce the number of new openings of the door body spring, improve the modularity of the spring adjustment system, and reduce the cost of the entire spring adjustment system; the structure is simple, the adjustment is convenient, and the time-consuming problem of manual adjustment is solved.

[0008] Furthermore, the driving device includes a driving motor installed at the bottom of the dishwasher, the driving motor is connected to a driving gear, the driving gear is meshed with a transition gear, the fixing block is threadedly connected to an adjusting screw, and the adjusting screw is connected to a driven gear meshed with the transition gear.

[0009] Furthermore, the driving gear, transition gear and driven gear are arranged vertically.

[0010] Furthermore, the tension test device is installed at the rear end of the spring connecting rope and is electrically connected to the drive motor. The tension test device uses a tension tester. After the outer door body is installed, the door is opened manually. The tension tester converts the tension into an electrical signal and feeds it back to the main control board. The main control board feeds the signal back to the memory. The memory compares the feedback tension information and feeds back the feedback result to the main control board. The main control board sends the instruction to the drive motor. The drive motor controls the rotation of the drive gear according to the established program, thereby controlling the driven gear to adjust the adjustment screw, and finally realizes that the spring reaches the specified position, and the switch door can stay at any position to meet the user's use.

[0011] Furthermore, the fixing block includes a fixing plate and a clamping plate, one side of the fixing plate is provided with a groove for the adjusting spring to be placed in, and the inner side of the fixing plate is provided with a stopper to prevent the adjusting spring from falling off. One side of the fixing block is provided with a groove, which is a concave notch provided on one side of the fixing block, and an arc-shaped spring profiling groove is provided at the upper end of the notch to facilitate the rear end of the adjusting spring to be installed into the fixing block; a protruding stopper buckle is provided inside the fixing block to ensure that the adjusting spring will not radially fall out inside the fixing block, thereby improving the stability of the structure.

[0012] Furthermore, the fixing plate and the clamping plate are respectively provided with a through hole and a threaded hole for the adjusting screw to pass through. The rear through hole is for the adjusting screw to pass through, which is convenient for installation; the threaded hole is connected with the adjusting screw, and the fixed block and the end of the adjusting spring are moved and adjusted under the action of the driving motor driving the adjusting screw to rotate.

[0013] Furthermore, the fixing plate and the clamping plate adopt an integrated "side U-shaped" structure.

[0014] Furthermore, the fixing plate and the clamping plate adopt a split structure, and a fixing structure is arranged between the fixing plate and the clamping plate to realize the connection. The fixing plate and the clamping plate adopt a split structure, the threaded hole and the stop block are arranged on the fixing plate, and the through hole is arranged on the clamping plate. When the adjusting spring is installed in the clamping fixing plate, the fixing plate can prevent the adjusting spring from falling out through the protruding stop block buckle, and then the fixing plate and the clamping plate are connected through the fixing structure, and the rear end of the adjusting spring is clamped to prevent the adjusting spring from breaking out of the fixing plate after being subjected to excessive force.

[0015] Furthermore, the fixing structure is connected by screws, corner buckles or magnets. The fixing plate and the clamping plate are fixedly connected by connecting screws, corner buckles or magnets, which facilitates synchronous movement and realizes clamping adjustment of the adjustment spring.

[0016] To sum up, the present invention can automatically adjust the tension of the adjustment spring according to the different installed door panels, so that the same adjustment spring can adapt to door bodies of different weights, reducing the number of new door springs, improving the modularity of the spring adjustment system, and reducing the cost of the entire spring adjustment system; the driving structure is simple and easy to adjust, which solves the problem of time-consuming manual adjustment; the fixed block connected to the rear end of the spring has a clamping and anti-slip function, which can adapt to the needs of door panels of different weights, solves the problem of spring slipping out under force, and improves the safety and stability of the door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a door closing state used in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the door opening state used in an embodiment of the present invention;

[0019] Figure 3 This is an enlarged view of the use state of the door opening and closing in the first embodiment of the present invention;

[0020] Figure 4 It is an enlarged view of part of the structure of an embodiment of the present invention;

[0021] Figure 5 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the fixed block in the first embodiment of the present invention;

[0023] Figure 7 This is a structural diagram of Embodiment 2 of the present invention;

[0024] Figure 8 This is a structural diagram of Embodiment 3 of the present invention;

[0025] Fig. 9 This is a structural diagram of embodiment 4 of the present invention.

[0026] Marking instructions: 1. Door body; 2. Hinge; 3. Pulley; 4. Spring connecting rope; 5. Tension test device; 6. Adjustment spring; 7. Fixing block; 8. Adjustment screw; 9. Driven gear; 10. Transition gear; 11. Driving gear; 12. Driving motor; 13. Limit baffle; 14. Gear shaft; 15. Threaded hole; 16. Stop block; 17. Through hole; 18. Clamping plate; 19. Groove; 20. Fixing plate; 21. Connecting screw; 22. Connecting angle buckle; 23. Magnet. DETAILED DESCRIPTION

[0027] Reference Figures 1 to 9 The specific implementation of a dishwasher door balance adjustment system of the present invention is further described.

[0028] A dishwasher door balance adjustment system includes an adjustment spring 6 installed at the bottom of the dishwasher, one end of the adjustment spring 6 is connected to a fixed block 7, the fixed block 7 is connected to a driving device for driving the adjustment spring 6 to move, the other end of the adjustment spring 6 is connected to a spring connecting rope 4, the spring connecting rope 4 is connected to a hinge 2 of the dishwasher door panel, and the spring connecting rope 4 is connected to a tension testing device 5.

[0029] The adjusting spring 6 is installed on both sides of the dishwasher door 1, and the spring connecting rope 4 is connected to the hinge 2 of the door 1 through the pulley 3, so that when the door 1 is opened, it can remain suspended due to the tension of the adjusting spring 6. When the rear end of the adjusting spring 6 of the door 1 is connected to the fixing block 7, the rear end of the adjusting spring 6 is locked to prevent the adjusting spring 6 from falling off due to excessive force.

[0030] The driving motor 12 is installed at the bottom of the dishwasher above the rear end of the adjusting spring 6. The transition gear 10 is installed through the gear shaft 14. The upper and lower parts of the transition gear 10 are respectively meshed with the driving gear 11 and the driven gear 9. The three gears are arranged up and down to reduce the occupied space in the dishwasher; and driven by the transition gear 10, it does not affect the gear ratio of the driving gear 11 and the driven gear 9, and at the same time makes the driving gear 11 and the driven gear 9 have the same direction of rotation.

[0031] The tension testing device 5 connected to the rear end of the spring connecting rope 4 can measure the tension of the door bodies 1 of different weights after opening the door, and adjust the operation of the driving motor 12 according to the measured tension value, thereby driving the adjusting screw 8 to rotate, so that the fixing block 7 threadedly connected thereto can be moved, thereby driving the adjusting spring 6 to move, and adjusting the tension of the adjusting spring 6. The present invention can automatically adjust the tension of the adjusting spring 6 according to the different door panels installed, so that the same adjusting spring 6 can be adapted to the door bodies 1 of different weights, reducing the number of new openings of the door body 1 spring, improving the modularity of the spring adjustment system, and reducing the cost of the entire spring adjustment system; the structure is simple, the adjustment is convenient, and the time-consuming problem of manual adjustment is solved.

[0032] Preferably, in this embodiment, the driving device includes a driving motor 12 installed at the bottom of the dishwasher, the driving motor 12 is connected to a driving gear 11, the driving gear 11 is meshed with a transition gear 10, the fixing block 7 is threadedly connected to an adjusting screw 8, and the adjusting screw 8 is connected to a driven gear 9 meshed with the transition gear 10.

[0033] Preferably, in this embodiment, the driving gear 11, the transition gear 10 and the driven gear 9 are arranged vertically.

[0034] In this embodiment, the tension test device 5 is preferably installed at the rear end of the spring connecting rope 4 and is electrically connected to the drive motor 12. The tension test device 5 uses a tension tester. After the outer door body 1 is installed, the door is opened manually, and the tension tester converts the tension into an electrical signal and feeds it back to the main control board. The main control board feeds the signal back to the memory. The memory compares the feedback tension information and feeds back the feedback result to the main control board. The main control board sends the instruction to the drive motor 12. The drive motor 12 controls the rotation of the drive gear 11 according to the established program, thereby controlling the driven gear 9 to adjust the adjusting screw 8, and finally realizes that the spring reaches the specified position, and the switch door can stay at any position to meet the user's use.

[0035] In this embodiment, the fixing block 7 preferably includes a fixing sheet 20 and a clamping sheet 18, a groove 19 for inserting the adjusting spring 6 is provided on one side of the fixing sheet 20, and a stopper 16 is provided on the inner side of the fixing sheet 20 to prevent the adjusting spring 6 from falling off. A groove 19 is provided on one side of the fixing block 7, and the groove 19 is a concave notch provided on one side of the fixing block 7, and an arc-shaped spring profiling groove is provided on the upper end of the notch to facilitate the rear end of the adjusting spring 6 to be installed into the fixing block 7; a protruding stopper buckle is provided inside the fixing block 7 to ensure that the adjusting spring 6 will not radially fall out inside the fixing block 7, thereby improving the stability of the structure.

[0036] In this embodiment, the fixing plate 20 and the clamping plate 18 are respectively provided with a through hole 17 and a threaded hole 15 for the adjusting screw 8 to pass through. The rear through hole 17 is for the adjusting screw 8 to pass through, which is convenient for installation; the threaded hole 15 is connected to the adjusting screw 8, and the movement and adjustment of the fixing block 7 and the end of the adjusting spring 6 are achieved under the action of the driving motor 12 driving the adjusting screw 8 to rotate.

[0037] Preferably, in this embodiment, the fixing plate 20 and the clamping plate 18 adopt an integrated “side U-shaped” structure.

[0038] In this embodiment, the fixing plate 20 and the clamping plate 18 are preferably of a split structure, and a fixing structure is provided between the fixing plate 20 and the clamping plate 18 to achieve connection. The fixing plate 20 and the clamping plate 18 are of a split structure, the threaded hole 15 and the stop block 16 are provided on the fixing plate 20, and the through hole 17 is provided on the clamping plate 18. When the adjustment spring 6 is installed in the clamping fixing plate 20, the fixing plate 20 can prevent the adjustment spring 6 from coming out through the protruding stop block 16, and then the fixing plate 20 and the clamping plate 18 are connected through the fixing structure, and the rear end of the adjustment spring 6 is clamped to prevent the adjustment spring 6 from breaking out of the fixing plate 20 after being subjected to excessive force.

[0039] In this embodiment, the fixing structure is preferably connected by screws, corner buckles or magnets 23. The fixing plate 20 and the clamping plate 18 are fixedly connected by connecting screws 21, connecting corner buckles 22 or magnets 23, etc., to facilitate synchronous movement and realize clamping adjustment of the adjustment spring 6.

[0040] In this embodiment, preferably, the front and rear ends of the fixed block 7 are provided with limit baffles 13 to limit the moving stroke of the fixed block 7 and maintain safety during the adjustment process. The limit baffles 13 can reasonably utilize the baffles or partitions of the dishwasher shell according to the installation structure of the dishwasher.

[0041] Embodiment 1, as Figure 5 , Figure 6 As shown, the fixed block 7 adopts a "side U-shaped" integrated structure, including a fixed plate and a clamping plate, the fixed plate is close to the side of the adjustment spring 6, the clamping plate is close to the side of the adjustment screw 8, a raised stopper 16 is arranged on the inner side of the fixed plate, the adjustment spring 6 is connected to the hinge 2 of the door body 1 through the spring connecting rope 4, and the rear end is installed in the fixed block 7 through the groove 19, the adjustment screw 8 passes through the through hole 17 on the clamping plate and is connected to the threaded hole 15 of the fixed plate, the rear end of the spring connecting rope 4 is connected to the tension test device 5, and the tension test device 5 is connected to the drive motor 12 signal. The rotating gear is connected to the driving shaft of the drive motor 12, and the adjustment screw 8 is meshed with the drive gear 11 through the transition gear 10.

[0042] When installing door panels of different weights, after the installation of the outer door panel is completed, the door is opened manually, and the tension testing device 5 converts the tension into an electrical signal and feeds it back to the main control board. The main control board feeds the signal back to the memory. The memory compares the feedback tension information and feeds back the feedback result to the main control board. The main control board sends the instruction to the drive motor 12. The drive motor 12 controls the rotation of the drive gear 11 according to the established program, thereby driving the driven gear 9 to rotate the adjusting screw 8 through the transition gear 10, and finally realizes the spring reaching the specified position, so that the switch door can stay at any position, realizes the automatic adjustment of the tension of different door bodies 1, and solves the time-consuming problem of manual adjustment.

[0043] Embodiment 2, as Figure 7 As shown, the fixing block 7 adopts a split structure, and the fixing plate and the tightening plate are separately arranged, and the two are fixed by connecting screws 21.

[0044] Embodiment three, as Figure 8 As shown, the fixing block 7 adopts a split structure, and the fixing plate and the tightening plate are separately arranged, and the two are fixed by connecting the angle buckles 22.

[0045] Embodiment 4, as Fig. 9 As shown, the fixing block 7 adopts a split structure, and the fixing plate and the tightening plate are separately arranged, and the two are fixed by a strong magnet 23.

[0046] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A dishwasher door balance adjustment system, characterized in that: It includes an adjusting spring installed at the bottom of the dishwasher, one end of the adjusting spring is connected to a fixing block, the fixing block is connected to a driving device for driving the adjusting spring to move, the other end of the adjusting spring is connected to a spring connecting rope, the spring connecting rope is connected to a hinge of a dishwasher door panel, and the spring connecting rope is connected to a tension testing device; The driving device comprises a driving motor installed at the bottom of the dishwasher, the driving motor is connected to a driving gear, the driving gear is meshed with a transition gear, the fixing block is threadedly connected to an adjusting screw, and the adjusting screw is connected to a driven gear meshed with the transition gear; The driving gear, transition gear and driven gear are arranged vertically; The tension testing device is installed at the rear end of the spring connecting rope and is electrically connected to the drive motor. The tension testing device adopts a tension tester. After the outer door body is installed, the door is opened manually, and the tension tester converts the tension into an electrical signal and feeds it back to the main control board. The main control board feeds the signal back to the memory. The memory compares the feedback tension information and feeds back the feedback result to the main control board. The main control board sends the instruction to the drive motor. The drive motor controls the rotation of the drive gear according to the established program, thereby controlling the driven gear to adjust the adjustment screw.

2. The dishwasher door balance adjustment system according to claim 1, characterized in that: The fixing block comprises a fixing plate and a clamping plate. A groove for inserting the adjusting spring is provided on one side of the fixing plate. A stop block for preventing the adjusting spring from falling off is provided on the inner side of the fixing plate.

3. The dishwasher door balance adjustment system according to claim 2, characterized in that: The fixing plate and the clamping plate are respectively provided with a through hole and a threaded hole for the adjusting screw to pass through.

4. The dishwasher door balance adjustment system according to claim 3, characterized in that: The fixing plate and the clamping plate adopt an integrated "side U-shaped" structure.

5. The dishwasher door balance adjustment system according to claim 3, characterized in that: The fixing plate and the clamping plate adopt a split structure, and a fixing structure is arranged between the fixing plate and the clamping plate to realize connection.

6. The dishwasher door balance adjustment system according to claim 5, characterized in that: The fixing structure adopts a screw connection, a corner buckle connection or a magnet connection.

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