Dishwasher dispenser with motor uncovering structure

Abstract

The application provides a dishwasher dispenser with a motor cover opening structure, which comprises a dispenser main body, a sliding cover, a motor, a gear transmission set, a cam, a pull rod and a rotating shaft, the motor drives the cam to rotate through the gear transmission set, the pull rod is movably arranged on the dispenser main body, one end of the pull rod is connected with the cam, and the other end of the pull rod is connected with the rotating shaft, and a first locking boss capable of being locked with the sliding cover is arranged on the rotating shaft; the cam is arranged on a gear C of the gear transmission set, and an assembly gap exists between the cam and the gear C, a pull spring is arranged on the cam, and the pull spring applies an action force to the cam to make the cam rotate relative to the gear C. The dispenser can be driven by the motor power of liquid throwing without increasing additional load, the functions of electrically opening the sliding cover and manually closing the sliding cover are realized, and the problems of one-way motor driving the sliding cover to be unlocked and the sliding cover being stuck when being reset are solved.

Description

[Technical Field]

[0001] This invention relates to the technical field of dishwasher dispensers, and in particular to a dishwasher dispenser with a motor-driven lid-opening structure. [Background Technology]

[0002] Current dishwashers typically use a dispenser that dispenses liquid via a coil, which also generates power to open the sliding lid, which is then manually closed. (See also...) Figure 1 The unlocking and opening process of the dispenser's sliding cover is as follows: energizing coil 100 drives piston 200 and pull rod 4, which in turn rotates shaft 5 to unlock. The locking and closing process is as follows: de-energizing coil 100 de-energizes piston and pull rod 4, causing shaft 5 to return to a locked state. In other words, the reciprocating movement of pull rod 4 and shaft 5 is achieved through the energizing and de-energizing of coil 100. If the liquid dispensing method is changed to a unidirectional motor drive, when the motor stops while driving the transmission mechanism, the motor-driven transmission mechanism may jam and fail to reset, resulting in the sliding cover not being able to close. [Summary of the Invention]

[0003] The purpose of this invention is to solve the problems existing in the motor-driven lid opening structure and to propose a dishwasher dispenser with a motor-driven lid opening structure. It can use the power of the liquid dispensing motor to drive the liquid without adding extra load, so as to realize the functions of electric opening and manual closing of the sliding lid, and solve the problem of the sliding lid getting stuck during reset.

[0004] To achieve the above objectives, the present invention proposes a dishwasher dispenser with a motor-driven opening structure, comprising a dispenser body and a sliding cover movably mounted on the dispenser body, and further comprising a motor, a gear transmission assembly, a cam, a pull rod, and a rotating shaft. The motor drives the cam to rotate via the gear transmission assembly. The pull rod is movably mounted on the dispenser body, with one end of the pull rod linked to the cam and the other end linked to the rotating shaft. The rotating shaft is provided with a first locking boss that can engage and lock with the sliding cover. The cam is mounted on a gear C of the gear transmission assembly, and the cam and gear C are rotatable relative to each other. A tension spring is provided on the cam, and the tension spring applies a force to the cam to cause it to rotate relative to the gear C.

[0005] Preferably, the gear C is provided with an eccentric drive shaft, the cam is provided with an arc-shaped drive groove into which the eccentric drive shaft can extend, and the cam can rotate beyond the gear C.

[0006] Preferably, the rotating shaft is provided with a reset boss, and the sliding cover is provided with a sliding cover boss. When the sliding cover is closed, the sliding cover boss abuts against the reset boss and applies a force to the rotating shaft to make it rotate in the closing direction.

[0007] Preferably, the pull rod is also equipped with a torsion spring, the force exerted by the torsion spring on the pull rod is reversible, and after the force of the torsion spring is reversed, a force is applied to the pull rod to push it to move.

[0008] Preferably, the sliding cover is also equipped with a sliding cover torsion spring. When the sliding cover is unlocked from the pivot, the sliding cover torsion spring applies a force to the sliding cover to move it toward the opening direction.

[0009] Preferably, the gear transmission assembly further includes gear A and gear B, gear A being connected to the motor drive, and gear A being driven by gear B and gear C.

[0010] The beneficial effects of this invention are as follows: This invention uses an AC unidirectional motor, which drives the pull rod and rotating shaft through gear transmission to unlock and open the sliding cover. When the sliding cover is manually closed, the rotating shaft is pushed back to its original position during the closing process, locking the sliding cover. Furthermore, by incorporating a cam that can rotate beyond the gears, the cam continues to rotate in the direction of rotation when the pull rod is resetting, preventing the cam and pull rod from jamming and solving the problem of the pull rod getting stuck during reset.

[0011] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. [Attached Image Description]

[0012] Figure 1 This is a schematic diagram of an existing dishwasher dispenser;

[0013] Figure 2 yes Figure 1 A schematic diagram of the motor cover opening structure at point E in the middle;

[0014] Figure 3 This is a schematic diagram of the motor opening structure of the present invention in the sliding cover closed state;

[0015] Figure 4 yes Figure 3 Rear view;

[0016] Figure 5 yes Figure 4 A diagram showing the cover plate without a pull rod;

[0017] Figure 6 yes Figure 5 A schematic diagram of direction AA;

[0018] Figure 7 yes Figure 5 BB-direction diagram;

[0019] Figure 8 yes Figure 5 Enlarged view of point C;

[0020] Figure 9 This is a schematic diagram of the motor opening structure of the present invention in the sliding cover open state;

[0021] Figure 10 yes Figure 9 A schematic diagram showing the direction of rotation of the pivot during the center-opening door process;

[0022] Figure 11 This is a schematic diagram of the sliding cover protrusion;

[0023] Figure 12 This is a schematic diagram of the locked state of the torsion spring when the sliding cover is not in use;

[0024] Figure 13 This is a diagram showing the unlocked state of the slider torsion spring when the slider is not in use.

Detailed Implementation Methods

[0025] See Figures 3 to 10 This invention discloses a dishwasher dispenser with a motor-driven opening mechanism, comprising a dispenser body 10 and a sliding cover 20 movably mounted on the dispenser body 10. It also includes a motor 1, a gear transmission assembly 2, a cam 3, a pull rod 4, and a rotating shaft 5. The motor 1 drives the cam 3 to rotate via the gear transmission assembly 2. The pull rod 4 is movably mounted on the dispenser body 10, with one end linked to the cam 3 and the other end linked to the rotating shaft 5. The rotating shaft 5 has a first locking boss 51 that can engage and lock with the sliding cover 20. The cam 3 is mounted on a gear C23 of the gear transmission assembly 2, and the cam 3 and the gear C23 can rotate relative to each other. A tension spring 31 is provided on the cam 3, applying a force to the cam 3 to cause relative rotation with the gear C23, preventing the cam 3 from jamming against the pull rod 4.

[0026] Further, see Figure 8 The gear C23 is provided with an eccentric drive shaft 231, and the cam 3 is provided with an arc-shaped drive groove 32 into which the eccentric drive shaft 231 can extend. In this embodiment, the gear C23 has an annular mounting cavity 230, and the cam 3 is movably mounted on the annular mounting cavity 230 of the gear C23. In addition, a pull rod cover plate 103 is also installed on the distributor body 10, and the cam 3 and the pull rod 4 are fixed by the pull rod cover plate 103, such as... Figure 4 and Figure 5 As shown.

[0027] Further, see Figure 10 and Figure 11The rotating shaft 5 is provided with a reset boss 52, and the sliding cover 20 is provided with a sliding cover boss 204. When the sliding cover 20 is closed, the sliding cover boss 204 abuts against the reset boss 52 and applies a force to the rotating shaft 5 to rotate it in the closing direction. In this embodiment, the rotating shaft 5 is also provided with a drive boss, and the pull rod 4 has a through groove into which the drive boss of the rotating shaft 5 can extend. The rotation of the rotating shaft 5 can drive the pull rod 4 to move.

[0028] Further, see Figure 6 The sliding cover 20 is equipped with a rotatable sliding cover button 201. The sliding cover button 201 has a second locking boss 202 that can be locked in conjunction with the first locking boss 51. One end of the sliding cover button 201 is connected to the sliding cover 20 via a button spring 203. In use, by lifting the end of the sliding cover button 201 that faces away from the button spring 203, the second locking boss 202 and the first locking boss 51 of the rotating shaft 5 can be separated, thereby unlocking the sliding cover 20. After releasing the sliding cover button 201, the sliding cover button 201 can be reset under the action of the button spring 203.

[0029] Further, see Figure 5 The pull rod 4 is also equipped with a torsion spring 41. The force exerted by the torsion spring 41 on the pull rod 4 is reversible. The pull rod 4 moves under the push of the cam 3. When the pull rod 4 moves to the point where the force of the torsion spring 41 reverses, the torsion spring 41 applies a force to push the pull rod 4 to move. In this embodiment, two torsion springs 41 are provided at the tail end of the pull rod 4. Of course, in addition to the above-mentioned method of providing torsion springs 41, a structure in which a return spring is provided at the end of the pull rod 4 facing away from the cam 3 can also be used. The return spring applies a force to the pull rod 4 to move it toward the end closer to the cam 3.

[0030] Further, see Figure 9 , Figure 10 , Figure 12 and Figure 13 The sliding cover 20 is also equipped with a sliding cover torsion spring 101. A small hole is provided at point A of the distributor body 10, and one end of the sliding cover torsion spring 101 is installed in the small hole of the distributor body 10 (corresponding to...). Figure 12 and Figure 13 Point A in the diagram), the other end is installed on the sliding cover 20 (corresponding to point A in the diagram). Figure 12 and Figure 13Point B in the diagram indicates that when the sliding cover 20 is closed to the left, point B of the sliding cover torsion spring 101 moves to the left, but the torsion spring force F remains to the right. When the sliding cover 20 is unlocked from the pivot 5, the sliding cover torsion spring 101 applies a force to the sliding cover 20, causing it to move in the opening direction. Unlocking is achieved when the first locking protrusion 51 disengages from the second locking protrusion 202 of the sliding cover button 201, and the sliding cover 20 slides to the right under the rightward force of the sliding cover torsion spring 101, thus opening the door.

[0031] Further, see Figure 3 The gear transmission assembly 2 also includes gear A21 and gear B22. Gear A21 is connected to the motor 1 for transmission, and gear A21 is transmitted to gear C23 through gear B22. In addition, a gear cover plate 102 for fixing the gear transmission assembly 2 is also installed on the distributor body 10.

[0032] The working principle of this invention is as follows: A unidirectional AC motor is used, which, through a gear transmission group 2, drives the pull rod 4 and the rotating shaft 5 to move, thereby unlocking the sliding cover 20. Then, by manually closing the sliding cover 20, the sliding cover 20 pushes the rotating shaft 5 to reset and lock the sliding cover 20. Because a unidirectional motor is used, the motor 1 drives the gear and cam 3 to rotate. If the motor 1 stops rotating while the cam 3 is pushing the pull rod 4, the pull rod 4 may become stuck against the cam 3 and fail to reset. This invention solves the above problem using the following methods:

[0033] 1. Design a structure for the engagement of gear C23 and cam 3, where cam 3 can rotate beyond the gear. The structural diagram is shown below. Figure 8 Then, after pushing the lever 4 to reset, the tension spring 31 installed on the cam 3 will cause the cam 3 to continue to rotate in the rotation direction, thus solving the reset jamming problem.

[0034] 2. Design a structure for the engagement of gear C23 and cam 3, where cam 3 can rotate beyond the gear. The structural diagram is shown below. Figure 8 Then, when the lever 4 is pushed to reset, the cam 3 is pushed to continue rotating in the direction of rotation to resolve the reset jamming problem.

[0035] The specific working process of this invention is as follows:

[0036] A. Electric door opening process

[0037] When motor 1 is powered on and started, it drives gears A21, B22, and C23 to rotate. Gear C23 drives cam 3 to rotate counterclockwise. Figure 5 , Figure 8Cam 3 pushes lever 4 to move. Lever 4 is equipped with two torsion springs 41. After lever 4 moves to a certain position, the direction of the torsion spring force will reverse, and lever 4 will continue to move through the torsion spring force. At the same time, the mounting point of cam 3 and gear C23 is an arc-shaped drive groove. Under the action of the tension spring 31, cam 3 continues to rotate to the right side of lever 4. This structure can ensure that when cam 3 stops rotating at any time, cam 3 and lever 4 will not jam. The movement of lever 4 will cause the rotating shaft 5 to rotate. During the rotation of the rotating shaft 5, the first locking boss 51 will disengage from the second locking boss 202 of the sliding cover button 201. Then, under the rightward force of the sliding cover torsion spring 101, the sliding cover 20 unlocks and slides to the right.

[0038] B. Manual door opening process

[0039] See Figure 6 Lifting one end of the sliding cover button 201 separates the second locking boss 202 on the sliding cover button 201 from the first locking boss 51 on the rotating shaft 5, thus unlocking the sliding cover 20. After being released, a button spring 203 is installed on the other end of the sliding cover button 201, which can reset the sliding cover button 201.

[0040] C. Door closing process

[0041] Will Figure 9 The slide cover 20, in its unlocked state, is pushed to the left. Figure 3 As shown, during the closing process, the sliding cover boss 204 on the sliding cover 20 pushes the reset boss 52 of the rotating shaft 5, causing the rotating shaft 5 to rotate in the opposite direction of the opening rotation F2 (see...). Figure 10 (Where F1 is the direction of opening the door and F2 is the opposite direction of opening the door, i.e., the direction of closing the door), so that the first locking boss 51 of the rotating shaft 5 is reset to the locked position, and then the locking boss on the sliding cover button 201 and the locking boss of the rotating shaft 5 come into contact to achieve locking.

[0042] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A dishwasher dispenser with a motor-driven opening mechanism, comprising a dispenser body (10) and a sliding cover (20) movably mounted on the dispenser body (10), characterized in that: It also includes a motor (1), a gear transmission group (2), a cam (3), a pull rod (4), and a rotating shaft (5). The motor (1) drives the cam (3) to rotate through the gear transmission group (2). The pull rod (4) is movably mounted on the distributor body (10). One end of the pull rod (4) is linked to the cam (3), and the other end is linked to the rotating shaft (5). The rotating shaft (5) is provided with a first locking boss (51) that can cooperate with and lock the sliding cover (20). The cam (3) is mounted on the gear transmission group (2). On gear C (23) of group (2), the cam (3) can rotate relative to the gear C (23). The cam (3) is equipped with a tension spring (31). The tension spring (31) applies a force to the cam (3) to make it rotate relative to the gear C (23). The pull rod (4) is also equipped with a torsion spring (41). The force applied by the torsion spring (41) to the pull rod (4) can be reversed. After the force of the torsion spring (41) is reversed, it applies a force to the pull rod (4) to push it to move.

2. A dishwasher dispenser with a motor-driven lid-opening structure as described in claim 1, characterized in that: The gear C (23) is provided with an eccentric drive shaft (231), and the cam (3) is provided with an arc-shaped drive groove (32) into which the eccentric drive shaft (231) can extend.

3. A dishwasher dispenser with a motor-driven lid-opening structure as described in claim 1, characterized in that: The rotating shaft (5) is provided with a reset boss (52), and the sliding cover (20) is provided with a sliding cover boss (204). When the sliding cover (20) is closed, the sliding cover boss (204) abuts against the reset boss (52) and applies a force to the rotating shaft (5) to make it rotate in the closing direction.

4. A dishwasher dispenser with a motor-driven lid-opening structure as described in claim 1, characterized in that: The sliding cover (20) is also equipped with a sliding cover torsion spring (101). When the sliding cover (20) is unlocked from the rotating shaft (5), the sliding cover torsion spring (101) applies a force to the sliding cover (20) to move it toward the opening direction.

5. A dishwasher dispenser with a motor-driven lid-opening structure as described in claim 1, characterized in that: The gear transmission assembly (2) further includes gear A (21) and gear B (22). Gear A (21) is connected to the motor (1) for transmission, and gear A (21) is transmitted to gear C (23) through gear B (22).

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