CN108903884A - A kind of movement structure of the cover plate of dishwasher - Google Patents

Abstract

The invention relates to the technical field of dish washing machines, in particular to a cover plate moving structure of a dish washing machine. The cover plate moving structure of the dish washing machine comprises a cover plate, a sealing pressing plate is connected with the cover plate through screws, the sealing pressing plate, a pulling plate, a pull rod, a pulling strip and a motor are sequentially connected, and a pressure spring is arranged in a sliding groove and is in contact with the pull rod. When the dish washer works, the pull rod is pulled by the motor to move downwards, so that the cover plate is driven to be tightly matched with the inner container to form a sealed space. When the dishwasher stops working, the cover plate can be separated from the inner container due to the existence of the pressure spring, so that the cover plate can not influence the extraction of the inner container. The side of dish washer can be installed in this apron motion, promptly the spout can be connected on the dish washer lateral wall by welding or other connected mode, improves dish washer's utilization space.

Description

A kind of movement structure of the cover plate of dishwasher

technical field

The invention relates to the field of dishwasher technology, in particular to a cover plate movement structure of the dishwasher.

Background technique

In the process of washing tableware, in order to prevent the water in the inner tank from leaking out, the dishwasher usually adds an inner tank cover plate and sets a sealing strip to seal it. After washing, the inner tank cover plate needs to be separated from the inner tank to seal the inner tank. Opening or extracting, this just involves that the liner cover plate must move up and down before and after washing, to realize sealing and separation with the liner. As the above-mentioned solution, the foreign patent DISHWASHER (EP1220636B1) discloses several typical up-and-down movement mechanisms of the inner tank cover. The hinge mechanism is used for support, the structure is complex, and the utilization rate of the internal space is low. Therefore, developing a simple in structure and reliable performance of the dishwasher liner top plate motion mechanism has always been the direction of efforts of those skilled in the art.

Contents of the invention

The purpose of the present invention is to simplify the movement structure of the dishwasher liner cover plate and improve the space utilization rate of the dishwasher. Therefore, the present invention proposes a dishwasher liner cover plate movement mechanism.

A cover plate movement structure of a dishwasher, comprising a cover plate, a pull plate, a pull rod, a chute and a reset device, the cover plate, pull plate, and pull rod are connected in sequence, the reset device is placed in the chute and In contact with the pull rod, the pull rod can drive the cover plate to move through the pull plate, and the reset device plays a reset role during the pull plate movement. Here, the connection between the cover plate and the pull plate, and the connection between the pull rod and the pull plate can be detachable or non-detachable, which does not affect the implementation of the present invention. In the present invention, the opening and closing of the cover is realized through the up and down movement of the pull rod, and the power source of the pull rod can be a motor or manually pulled. Because a resetting device is provided in the chute, and the resetting device is in contact with the pull rod, the cover plate can be restored to its original state by using the resetting device when the power source is removed. Specifically, when the dishwasher is working, the cover plate and the inner container of the dishwasher need to form a sealed space. At this time, the pull rod moves downward to drive the cover plate and the inner container to closely fit to form a sealed space. When the dishwasher stops working, the inner container needs to be drawn out, and the power source applied to the pull rod is removed. Due to the existence of the reset device, the cover plate will be separated from the inner container, so that the cover plate will not affect the extraction of the inner container. The movement of the cover plate can be installed on the side of the dishwasher, that is, the chute can be connected to the side wall of the dishwasher by welding or other connection methods, so as to improve the utilization space of the dishwasher.

Further, the cover plate is also provided with a sealing pressure plate, the sealing pressure plate is provided with a hook hole, and the pull plate is provided with a hook matched with the hook hole. The sealing pressing plate can be connected to the cover plate through an existing mechanical connection method, such as screw connection. The connection between the draw plate and the seal press plate can be realized through the hook holes provided on the seal press plate and the hooks on the draw plate. This connection is detachable, which is convenient for assembly and maintenance.

Further, the sealing pressing plate is also provided with a limiting groove, and the pulling plate is provided with a limiting boss matched with the limiting groove. The limit groove and the limit boss can ensure the precise connection of the sealing pressure plate and the pull plate without assembly errors.

Further, the cover plate also includes a sealing strip. After the cover plate is in contact with the liner, that is, after the cover plate is closed, the sealing strip can provide a better sealing effect due to extrusion deformation, and the material of the sealing strip can be soft rubber material.

Further, a part of the sealing strip is arranged between the cover plate and the sealing pressure plate, and another part protrudes from the cover plate. A part of the sealing strip protrudes from the cover plate so that the cover plate will squeeze the sealing strip during the closing process of the cover plate, so that the sealing strip can be filled between the cover plate and the inner container without gaps, thereby improving the sealing effect.

Further, a connection hole is provided on the pull plate, and a connection boss matched with the connection hole is provided on the pull rod. The tie plate is provided with a connecting hole and a connecting platform on the pull rod so that the tie plate and the pull rod are detachably connected, which is convenient for installation and maintenance.

Further, a limiting rib is provided in the connecting hole of the pull plate, and a limiting hole matching the limiting rib is provided on the tie rod. The limiting rib and the limiting hole can ensure that the connecting boss of the tie rod is accurately matched with the connecting hole of the tie plate, and can also prevent the connecting boss of the tie rod from lateral displacement.

Further, the pull rod is provided with a flange, the reset device is a compression spring, one end of the compression spring is in contact with the flange, and the other end is in contact with the bottom surface of the chute. As a return spring, the compression spring has the characteristics of low cost and simple structure. The compression spring is arranged between the pull rod and the chute to provide elastic force for the pull rod to restore it to its original position. In this technical solution, a part of the pull rod is sleeved in the compression spring, that is to say, the width/diameter of this part of the pull rod is smaller than the inner diameter of the compression spring, and the width/diameter of the flange is larger than the inner diameter of the compression spring.

Further, the chute is provided with an upper flange and a lower flange, and the flange of the tie rod is placed between the upper flange and the lower flange. The upper and lower folds can control the upper limit and lower limit of the stroke of the tie rod, and then control the maximum and minimum distances between the cover plate and the inner tank, so as to prevent the cover plate from being over-extruded and causing damage to parts. The lower flange can also provide a supporting surface for the pressure spring.

Further, it also includes a tie bar and a motor, and the tie bar is connected to the tie rod and the motor respectively. The motor drives the pull rod through the pull rod, and then drives the movement of the cover plate. The upper end of the pull rod is a boss structure, which can be stuck at the bottom of the pull rod. The pull rod can be a pull rope or a sheet metal pull rod or a strip-shaped pull strip.

Compared with prior art, the beneficial effect of the present invention:

(1) The movement structure of the cover plate in the present invention is simple and installed in the dishwasher, which can improve the space utilization rate of the dishwasher.

(2) The reset device in the present invention can make the cover plate leave the inner container automatically and keep the open state.

(3) The cover plate, pull plate, pull rod and tie bar in the present invention are all detachably connected, which is convenient for equipment and maintenance.

Description of drawings

Fig. 1 is a structural schematic diagram of a cover plate movement structure of a dishwasher in the present invention;

Fig. 2 is an enlarged view of part A in Fig. 1;

Fig. 3 is a sectional view of a cover plate movement structure of a dishwasher in the present invention;

Fig. 4 is an enlarged view of part B in Fig. 3;

Figure 5 is an enlarged view of part C in Figure 3;

Fig. 6 is an enlarged view of part D in Fig. 3;

Fig. 7 is a structural schematic diagram of a cover plate movement structure of a dishwasher in the present invention when the cover plate is opened;

Figure 8 is an enlarged view of part E in Figure 7;

Fig. 9 is an enlarged view of part F in Fig. 7;

Fig. 10 is a structural schematic diagram of a cover plate movement structure of a dishwasher in the present invention when the cover plate is closed;

Figure 11 is an enlarged view of part H in Figure 10;

Figure 12 is an enlarged view of part G in Figure 10;

Fig. 13 is a schematic structural diagram of a sealing platen in a cover plate movement structure of a dishwasher according to the present invention;

Fig. 14 is a structural schematic diagram of another viewing angle of the sealing pressure plate in the cover plate movement structure of a dishwasher according to the present invention;

Fig. 15 is a schematic diagram of the pull plate structure in the cover plate movement structure of a dishwasher according to the present invention;

Fig. 16 is a schematic diagram of the structure of the pull rod in the cover plate movement structure of a dishwasher according to the present invention;

Fig. 17 is a structural schematic diagram of another viewing angle of the pull rod in the cover plate movement structure of a dishwasher according to the present invention;

Fig. 18 is a schematic diagram of the chute structure in the cover plate movement structure of a dishwasher according to the present invention.

Marked in the figure:

Reference signs of the present invention: 1-cover plate, 2-sealing pressure plate, 21-hook hole, 22-limiting groove, 3-drawing plate, 31-hook, 32-limiting boss, 33-connecting hole, 34 -limiting rib, 35-upper flange, 36-lower flange, 4-tie rod, 41-connecting boss, 42-flange, 43-limiting hole, 44-bottom groove, 5-chute, 51- Side wall of the chute, 52-upper flange, 53-bottom flange, 6-bracing bar, 7-motor, 8-sealing strip, 9-pressure spring, 10-inner tank, 11-screw, 12-dishwasher side wall.

Detailed ways

Referring to Figures 1-6, the moving structure of the cover plate of the dishwasher includes a cover plate 1, a sealing pressure plate 2 connected to the cover plate 1 through screws 11, a sealing pressure plate 2, a pull plate 3, a pull rod 4, a pull bar 6 and a motor connected in sequence . The dishwasher in this embodiment has two sets of cover plate moving structures with the same structure, as shown in FIG. 1 . The sealing platen 2 is provided with a hook hole 21 and a limiting groove 22 , and the hook hole 21 and the limiting groove 22 are arranged at intervals, see FIGS. 13 and 14 . A sealing strip 8 is provided between the sealing platen 2 and the cover plate 1 , a part of the sealing strip 8 is stuck between the cover plate 1 and the sealing platen 2 , and the other part protrudes from the cover plate 1 . A part of the sealing strip protrudes from the cover plate 1 because the cover plate 1 will squeeze the sealing strip 8 during the closing process of the cover plate 1, so that the sealing strip can be filled between the cover plate 1 and the inner container 10 without any gap, and the lifting Sealing effect. The pressing plate 3 is roughly trapezoidal, and one end of the pressing plate 3 is provided with a hook 31 and a limiting boss 32. The hook 31 is inserted into the hook hole 21 on the sealing pressing plate 2, and the limiting boss 32 is inserted in the limiting groove 22 to realize pulling the plate. 3. The connection with the sealing pressure plate 2 is shown in FIG. 2. Due to the cooperation of the hook 31 and the hook hole 21, the pressure plate 3 can pull the sealing pressure plate 2 to move, and then drive the cover plate 2 to move. The other end of pull plate 3 is provided with connecting hole 33, is respectively provided with limit rib 34, upper flange 35 and lower flange 36 around connecting hole 33, and pull plate 3 can also offer some weight-reducing holes, to reduce the washing time. The weight of the whole machine. One end of the pull rod 4 is provided with a connecting boss 41 and limiting holes 43 distributed on both sides of the connecting boss 41 . The connecting boss 41 of the pull rod 4 is inserted into the connecting hole 33 of the pull plate 3. The specific connecting boss 41 is located between the upper flange 35 and the lower flange 36, and the limiting rib 34 is inserted into the connecting boss 41 on both sides. In the limiting hole 43. Pull bar 4 just can drive draw plate 3 to move like this, and draw bar 4 is also provided with flange 42 probably in the middle position, and the effect of flange 42 will be described in detail below. One end of the tie rod 6 is a boss structure, as shown in Fig. 6, the boss end of the tie rod 6 passes through the bottom groove 44 of the tie rod 4, and the boss cooperates with the bottom surface of the tie rod 4, thereby realizing the kinematic connection between the tie rod 6 and the tie rod 4, and also That is to say, by virtue of the contact between the boss of the tie bar 6 and the bottom surface of the tie bar 4, the tie bar 6 can drive the pull bar 4 to move, and the other end of the tie bar 6 is connected with a motor 7, which can be a geared motor. Referring to Fig. 18, this embodiment also includes a chute 5, the cross section of which is in the shape of a "匚", and the chute 5 is connected to the side wall of the dishwasher through the side wall 51 of the chute in the prior art. 12 on, such as welding. The two ends of the chute 5 are respectively provided with an upper flange 52 and a lower flange 53, and a part of the pull rod 4 is arranged in the chute 5. Specifically, the flange 42 of the pull rod 4 is located at the upper flange 52 and the lower flange. 53, between the lower flange 53 and the flange 42 of the pull rod 4, a compression spring 9 is set, the part below the flange 42 of the pull rod 4 is set in the compression spring 9, and the two ends of the compression spring 9 respectively contact the protrusions of the pull rod 4. The lower flange 53 of the edge 42 and the chute 5, the part width/diameter of the pull rod 4 inserted in the compression spring 9 will be smaller than the inner diameter of the compression spring 9, and the width/diameter of the flange 42 will be greater than the inner diameter of the compression spring 9, here Pull bar 4 and flange 42 shapes can be circular also can make square.

The movement process of the cover plate 1 is described below, referring to Figure 7-12, when the dishwasher starts to wash the tableware, the cover plate 1 pulls the pull bar 6 downward under the drive of the motors 7 on both sides, and the pull bar 4 and the pull plate 3 Passing, so that the cover plate 1 moves downward, and when it moves to the preset position, the sealing strip 8 contacts with the upper end of the inner tank 10 and deforms under pressure, so as to seal the inner tank 10 and the cover plate 1 to prevent washing process. Water splashes out. When the pull rod 4 moves downward, the flange 42 in the middle of the pull rod 4 that is in contact with the compression spring 9 presses the compression spring 9 downward, and the lower end of the compression spring 9 collides with the lower flange 53 of the chute 5, so that the compression spring 9 is downward Motion compression, reserve elastic potential energy.

When the dishwasher finishes washing, the cover plate 1 needs to move upwards so that the user can extract the inner container 10. At this time, the motor 7 receives the release signal to release the pre-tightening force inside the motor 7, so that the pull bar 6 is in a relaxed state, and When the pull bar 6 is relaxed, the compression spring 9 releases the elastic potential energy, drives the pull rod 4 to move upward, and the elastic force is transmitted through the pull plate 3, so that the sealing pressure plate 2 moves upward, that is, the cover plate 1 moves upward, and finally the cover plate 1 and the inner The liner 10 is separated, and the user can smoothly extract the liner after the cover plate 1 is separated from the liner 10 . It should be noted that in the process of pulling the pull rod 4 downward, due to the existence of the upper edge 52 of the chute, when the lower end of the pull rod 4 collides with the lower edge 53 of the chute, the pull rod 4 will not move again at this time. The degree of deformation of the sealing strip 8 is the largest, and the sealing effect is also the best. During the upward reset movement of the pull rod 4, due to the existence of the folded edge 52 on the chute, the pull rod flange 42 will conflict with the folded edge 52 on the chute. At this time, the pull rod 4 will not move again, and at this time the cover plate 1 and the inner container The distance of 10 separation has also reached the maximum value.

The specific implementation described above has described the technical scheme and beneficial effects of the present invention in detail. It should be understood that the above description is only the most preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, supplements and equivalent replacements made within the scope shall be included in the protection scope of the present invention.

Claims (10)

1. a kind of cover board motion structure of dish-washing machine, which is characterized in that including cover board, pulling plate, pull rod, sliding slot and resetting apparatus, The cover board, pulling plate, pull rod are sequentially connected, and the resetting apparatus is placed in the sliding slot and contacts with the pull rod, the drawing Bar can drive the cover board to move by pulling plate, and the resetting apparatus plays reset response in pulling plate movement.

2. cover board motion structure according to claim 1, which is characterized in that be additionally provided with sealing clamp, institute on the cover board Sealing clamp is stated equipped with dog hole, the pulling plate is equipped with the hook matched with the dog hole.

3. cover board motion structure according to claim 2, which is characterized in that it is additionally provided with limiting slot on the sealing clamp, The pulling plate is equipped with the positive stop lug boss matched with the limiting slot.

4. cover board motion structure according to claim 1 or 2, which is characterized in that the cover board further includes sealing strip.

5. cover board motion structure according to claim 4, which is characterized in that a part of the sealing strip is arranged described Between cover board and sealing clamp, another part protrudes from the cover board.

6. cover board motion structure according to claim 1, which is characterized in that connecting hole is equipped on the pulling plate, it is described Pull rod is equipped with the connection boss matched with the connecting hole.

7. cover board motion structure according to claim 6, which is characterized in that be equipped with limit in the connecting hole of shown pulling plate Muscle is equipped with the limit hole matched with the limit rib on the pull rod.

8. cover board motion structure according to claim 1, which is characterized in that the pull rod is equipped with flange, the reset Device is pressure spring, and described pressure spring one end and the Hp contacts, the other end are contacted with the sliding slot bottom surface.

9. cover board motion structure according to claim 8, which is characterized in that the sliding slot is equipped with upper hem and lower hem.

10. cover board motion structure according to claim 1, which is characterized in that further include tie rod and motor, the tie rod point It is not connect with the pull rod and motor.