Guide assembly and dishwasher

Abstract

The present invention discloses a guide assembly and a dishwasher, wherein the guide assembly comprises a first slide, a second slide, a fixed plate and a locking structure, wherein the second slide is fixedly connected to the fixed plate, the first slide is slidably connected to the second slide along the length direction, and the locking structure comprises a fixed block and a movable block rotatably connected to the fixed block, wherein the fixed block is fixed to the rear end of the fixed plate, and the movable block is used to limit the position of the drawer. On the one hand, the guide assembly of the present invention can buffer the drawer in a stroke before the drawer is in place during the process of pushing the drawer into the box body, thereby preventing the rear of the drawer from violently colliding with the box body due to excessive thrust, and on the other hand, by setting a stop structure, the drawer can be limited in the pushing stroke, and after the drawer is in place, the drawer's pin is inserted into the notch to prevent the drawer from shifting in the box body, thereby avoiding the occurrence of sealing failure.

Description

Technical Field

[0001] The invention relates to a guide assembly and a drawer-type dishwasher having the guide assembly. Background Art

[0002] With the advancement of science and technology, more and more intelligent household appliances have entered human life. Drawer-type dishwashers include: a pull-out inner tank and a cabinet. The inner tank is connected to the cabinet through a sliding guide structure. The washing cavity in the inner tank is opened or closed by pulling out or pushing the inner tank into the cabinet. Due to the special use requirements of the dishwasher, water is sprayed in the inner tank cavity when washing dishes. The washing process requires the use of a drainage motor and a ventilation fan. The inner tank must not move in the cabinet during the washing process, causing the closed structure to fail, causing the water in the dishwasher to flow out from the gap and pollute the cabinet. If the water flows into the inside of the casing, it may also cause a safety accident. Summary of the invention

[0003] In order to solve the technical problem that the existing guide assembly is not accurate enough in limiting the position of the drawer, which easily leads to failure of the sealing structure of the drawer, the present invention proposes a guide assembly that can solve the above problem.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:

[0005] A guide assembly includes a first slide, a second slide, a fixed plate and a locking structure, wherein the second slide is fixedly connected to the fixed plate, the first slide and the second slide are slidably connected along the length direction, the locking structure includes a fixed block and a movable block rotatably connected to the fixed block, the fixed block is fixed to the rear end of the fixed plate, and the movable block is used to limit the drawer in place.

[0006] Furthermore, a notch is provided at the top of the movable block, and a stop structure is provided on the fixed block behind the movable block for limiting the rotation angle of the movable block. The drawer is provided with a pin shaft matching the notch. When the drawer is pushed to the rear of the box body, the pin shaft is inserted into the notch and drives the movable block to rotate backward around the axis until the movable block is stopped by the stop structure.

[0007] Furthermore, the fixed block includes a horizontally arranged bottom support plate and a bracket arranged on the upper surface of the bottom support plate, the bracket includes at least a first support plate and a second support plate arranged in parallel, the upper ends of the first support plate and the second support plate are symmetrically provided with axial holes, and a rotating shaft is respectively arranged on both side surfaces of the movable block, the movable block is inserted between the first support plate and the second support plate, and the rotating shaft is inserted into the corresponding axial hole.

[0008] Furthermore, an elastic connecting member is connected between the fixed block and the movable block, and the elastic connecting member is a spring. Both ends of the spring have hooks respectively. A first hanging part is formed on the movable block, and a second hanging part is formed on the fixed block. Both ends of the spring are hung on the first hanging part and the second hanging part respectively through the hooks.

[0009] Furthermore, the lower end of the movable block has a center seam, the plane where the center seam is located is perpendicular to the length direction of the rotating shaft, the first hanging portion is located in the center seam, and the first hanging portion is a protruding structure formed by partially extending one side edge of the center seam toward the center seam.

[0010] Furthermore, the stop structure is connected between the first support plate and the second support plate.

[0011] Furthermore, a claw opening toward the front is formed at the rear end of the bottom support plate, and the claw is located above the bottom support plate.

[0012] Furthermore, at least one limiting hole is formed on the bottom supporting plate.

[0013] Furthermore, a plurality of reinforcing ribs are formed between the first support plate and / or the second support plate and the bottom support plate.

[0014] Furthermore, the bottom support plate extends downward from the connection portion between the first support plate and the bottom support plate to form a side plate, the second hanging portion is located on the side plate, and the bottom of the bracket and located between the first support plate and the second support plate has a spring hole for the spring to pass through.

[0015] Furthermore, a limiting structure is provided at the front end portion of the first slide, and the limiting structure includes a front baffle, and the front baffle extends backward on a side close to the side wall of the box to form a side baffle, and a limiting protrusion is formed on the surface of the side baffle facing the side wall of the box, and the upper end of the front baffle has a slide rail connecting portion extending backward, and the slide rail connecting portion is fixedly connected to the first slide, and when the first slide slides toward the inside of the box, the limiting protrusion cooperates with the side wall of the box to limit the depth of the first slide sliding into the box.

[0016] Furthermore, the slide rail connection part includes a connection part body, which extends backward from the upper end of the front baffle, and the connection part body is inserted into the track cavity of the first slide from the front end thereof and is fixedly connected to the first slide.

[0017] Furthermore, an elastic component is formed on the upper surface of the connecting part body, and the elastic component at least partially protrudes from the upper surface of the connecting part body. The first slide is an inverted U-shaped groove structure, and an assembly hole matching the elastic component is opened on the bottom of the groove of the first slide. When the connecting part body is inserted into the track cavity of the first slide, the elastic component slides into the assembly hole.

[0018] Furthermore, the rear end of the elastic component is connected to the connecting part body, and the front end is a free end. The front end of the elastic component is high, the rear end is low, and there is a smooth transition between the two ends.

[0019] Furthermore, at least one reinforcing rib is provided between the connecting part body and the front baffle, and the reinforcing rib includes a first side and a second side, and the reinforcing rib is located below the connecting part body, wherein the first side is connected to the lower surface of the connecting part body, and the second side is connected to the front baffle.

[0020] Furthermore, there are two reinforcing plate ribs, the two reinforcing plate ribs are arranged in parallel, and the width between the outer side walls of the two reinforcing plate ribs is not greater than the slot width of the first slideway.

[0021] Furthermore, the reinforcing plate rib is in the form of a horizontally placed right-angled trapezoid, the hypotenuse of the right-angled trapezoid is located at the bottom, and a notch is provided on the hypotenuse, and the top edge of the notch is parallel to the first side.

[0022] Furthermore, the free end of the side baffle has an end edge that is inclined and turned outward.

[0023] Furthermore, the limiting protrusion is provided with a weight-reducing hole along its width direction.

[0024] Furthermore, the fixing plate is L-shaped, including a first side arranged horizontally and a second side arranged vertically, the front end of the second side has a first fixing claw, and the rear end of the second side has a second fixing claw.

[0025] Furthermore, two claws are formed on the lower surface of the first side, the clamping parts of the two claws are arranged to face each other, and the two claws are clamped and fixed with the locking structure.

[0026] The present invention also proposes a dishwasher, comprising a box and a drawer, wherein the drawer and the box are slidably connected via a guide assembly, the guide assembly is the guide assembly described in any of the above items, the fixing plate is fixed to the box, and the first slide is fixed to the drawer.

[0027] Compared with the prior art, the advantages and positive effects of the present invention are as follows: the guide assembly of the present invention, by setting a locking structure for limiting the position of the drawer at the rear part of the box body, fixes the fixed block to the box body through the matching design of the moving block and the fixed block, and the moving block and the fixed block are rotatably connected. When the drawer is pushed into the box body, on the one hand, it can play a buffering role for the drawer in a section of the stroke before the drawer is in place during the process of pushing the drawer into the box body, preventing the rear part of the drawer from violently colliding with the box body due to excessive thrust. On the other hand, by setting a stop structure, the drawer pushing stroke is limited, and after the drawer is in place, the drawer pin is stuck in the notch to prevent the drawer from shifting in the box body, thereby avoiding the occurrence of sealing failure.

[0028] Other features and advantages of the present invention will become more apparent after reading the detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic structural diagram of an embodiment of a dishwasher proposed by the present invention;

[0031] Figure 2 yes Figure 1 Schematic diagram of the internal structure;

[0032] Figure 3 yes Figure 2 Enlarged view of part C;

[0033] Figure 4 yes Figure 1 Rear view of the middle dishwasher drawer pushed into the cabinet;

[0034] Figure 5 yes Figure 4 A magnified view of part A;

[0035] Figure 6 yes Figure 5 Schematic diagram of the locking structure;

[0036] Figure 7 Figure 6 Schematic diagram of the local structure;

[0037] Figure 8 yes Figure 6 A structural diagram from another perspective;

[0038] Fig. 9 yes Figure 6 Schematic diagram of the internal structure;

[0039] Fig.10a yes Fig. 9 Schematic diagram of the equilibrium state;

[0040] Fig.10b yes Fig. 9 Another state diagram in FIG.

[0041] Fig.10c yes Fig. 9 A schematic diagram of the state in the middle;

[0042] Fig.11 yes Figure 6 Schematic diagram of the local structure of the middle moving block;

[0043] Fig.12 yes Figure 6 Schematic diagram of the state of the suspension spring of the middle fixed block;

[0044] Fig.13 yes Fig.12 A schematic diagram from another perspective;

[0045] Fig.14 yes Figure 6 Schematic diagram of the assembly structure of the middle locking structure;

[0046] Fig.15 yes Figure 6 Schematic diagram of the bottom structure of the middle drawer locking structure;

[0047] Fig.16 yes Figure 2 Schematic diagram of the structure of the middle guide assembly;

[0048] Fig.17 yes Figure 1 Front view of the middle dishwasher drawer pushed into the cabinet;

[0049] Fig.18 yes Fig.17 A magnified view of part B;

[0050] Fig.19 yes Fig.17 Assembly diagram of the middle slide rail assembly and the slide rail limiting structure;

[0051] Fig. 20 yes Fig.19 Top view of;

[0052] Fig.21 yes Fig.19 Schematic diagram of the local structure;

[0053] Fig. 22 yes Fig.21 lateral view of;

[0054] Fig.23 yes Fig.17 Schematic diagram of the matching relationship between the middle slide rail assembly and the drawer;

[0055] Fig.24 yes Fig.17 Schematic diagram of the partial structure of the middle box. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] Embodiment 1. This embodiment takes a dishwasher with a guide assembly as an example to explain in detail the structural composition of the guide assembly and the dishwasher and their technical effects. It should be noted that, in general, two objects connected by a guide assembly require at least two symmetrically arranged guide assemblies, and the structural composition of each guide assembly is consistent. The difference is that some structural parts need to be designed in a mirror-symmetrical manner. The solutions with mirror-symmetrical designs all belong to the protection scope of this patent. In this embodiment, the guide assembly on one side is used as an example for explanation. Moreover, for a hexahedral box, it has two side walls. If two guide assemblies are set, the two guide assemblies are respectively close to the side wall of the box on one side. If there is no special explanation, the side wall of the box referred to in this embodiment is a side wall adjacent to the guide assembly. The "front" referred to in this embodiment refers to the direction in which the drawer is pulled out of the box, and the "back" refers to the direction in which the drawer is pushed into the box.

[0058] like Figure 1-Figure 5As shown, the dishwasher includes a housing 1 and a drawer 2, the drawer 2 and the housing 1 are slidably connected through a guide assembly 3, the guide assembly 3 includes a first slide 31, a second slide 32, a fixed plate 33 and a locking structure 34, the second slide 32 is fixedly connected to the fixed plate 33, the first slide 31 and the second slide 32 are slidably connected along the length direction, the first slide 31 and the second slide 32 can be in direct sliding contact, or can be in indirect contact through an intermediate slide 35 and can slide relatively, the second slide 32 is fixedly connected to the fixed plate 33, the fixed plate 33 is fixed to the housing 1, that is, the second slide 32 is fixedly connected to the housing 1 through the fixed plate 33, and the first slide 31 is fixed to the drawer 2, so that the drawer can slide relative to the housing, and a locking structure 34 is arranged at the rear of the drawer in the housing, the locking structure 34 includes a fixed block 341 and a moving block 342 rotatably connected to the fixed block 341, the fixed block 341 is fixed to the rear end of the fixed plate 33, and the moving block 342 is used to limit the drawer 2 in place. The guide assembly of this embodiment is provided with a locking structure at the rear of the box body for limiting the position of the drawer. The fixed block is fixed to the box body through a fixed plate 33 through the matching design of the moving block and the fixed block. The moving block and the fixed block are rotatably connected. When the drawer is pushed into the box body, on the one hand, it can play a buffering role for the drawer in the process of pushing the drawer into the box body and before the drawer is in place, preventing excessive thrust from causing the rear of the drawer to hit the box body violently. On the other hand, by setting a stop structure, it plays a role of limiting the push-in stroke of the drawer.

[0059] Among them, the upper and lower position relationship between the first slide 31 and the second slide 32 is not limited. The first slide 31 can be on the top and the second slide 32 can be on the bottom, or the first slide 31 can be on the bottom and the second slide 32 can be on the top. Both belong to the protection scope of this patent. In this embodiment, the first slide 31 is on the top and the second slide 32 is on the bottom for explanation.

[0060] As a preferred embodiment, Figure 6-Figure 9As shown, a notch 3421 is provided at the top of the movable block 342 of the locking structure 34, and a stop structure 3411 is provided on the fixed block 341 at the rear of the movable block 342 for limiting the rotation angle of the movable block 342. The drawer 2 is provided with a pin shaft 21 matched with the notch 3421. When the drawer 2 is pushed into the rear of the box body 1, the pin shaft 21 is inserted into the notch 3421 and drives the movable block 342 to rotate backward around the axis until the movable block 342 is stopped by the stop structure 3411. During the process of drawing and pulling the drawer, the drawer 2 moves relative to the box body 1, that is, the box body 1 is stationary. Therefore, by fixing the fixed block 341 to the box body 1 through the fixing plate 33, the fixed block 341 is stationary during use and is supported by the box body 1. By arranging the drawer locking structure in the box body and at the rear of the drawer, when the drawer is in the pulled-out state, the notch faces forward, and when the drawer is pushed into the body, the pin shaft on the box body is inserted into the notch of the movable block. At this time, the drawer still has a certain margin from the in-place position. As the drawer is pushed further in, the pin shaft drives the movable block to rotate backward around the axis. On the one hand, it can buffer the drawer in a period of time before the drawer is in place during the process of pushing the drawer into the box body, preventing the rear of the drawer from violently colliding with the box body due to excessive thrust. On the other hand, by setting the stop structure 3411, it can limit the drawer's pushing stroke, and after the drawer is in place, the pin shaft of the drawer is inserted into the notch to prevent the drawer from shifting in the box body, thereby avoiding the occurrence of sealing failure.

[0061] Preferably, in the present embodiment, the fixed block 341 includes a horizontally arranged bottom support plate 3412 and a bracket arranged on the upper surface of the bottom support plate 3412, the bracket includes at least a first support plate 3413 and a second support plate 3414 arranged in parallel, the upper ends of the first support plate 3413 and the second support plate 3414 are symmetrically provided with shaft holes 3415, and a rotating shaft 3422 is respectively arranged on both side surfaces of the movable block 342, the movable block 342 is inserted into the clamping cavity between the first support plate 3413 and the second support plate 3414, and the rotating shaft 3422 is inserted into the corresponding shaft hole 3415. The axial direction of the rotating shaft 3422 is perpendicular to the plane where the notch 3421 is located. By arranging a rotating shaft 3422 on both sides of the movable block 342, it is ensured that the movable block is always in a balanced state during the rotation process, and the fixed block 341 provides it with stable support. By arranging two support plates and inserting the movable block 342 into the space between the two support plates, the supporting body and the supported body can be in a stable supporting state, and at the same time, it will not affect the rotation of the movable block around the axis, and can provide it with the required rotation space.

[0062] The shaft hole 3415 can be a closed or non-closed through hole, or a closed or non-closed blind hole. When it is a blind hole, it at least has a support portion for accommodating the end of the rotating shaft to be inserted and for supporting the rotating shaft 3422. In this embodiment, the shaft hole 3415 is preferably a non-closed hole, and an insertion port is opened at the top of the shaft hole 3415, that is, the shaft hole 3415 has a U-shaped groove structure. The rotating shaft 3422 can be inserted into the clamping cavity between the two support plates from above the first support plate 3413 and the second support plate 3414, and the rotating shaft 3422 can slide into the shaft hole 3415 from the insertion port accordingly, which is very convenient to operate. Similarly, when it is necessary to remove the moving block 342 from the fixed block 341, it is only necessary to hold the moving block 342 and move it upward to remove it.

[0063] The notch 3421 is preferably a U-shaped groove structure, and the bottom of the notch 3421 is at a certain distance from its mouth. When the drawer is pushed into the box body, the pin 21 is first aligned with the notch 3421, and then as the drawer continues to be pushed in, the pin 21 acts on the inner wall of the notch 3421, generating a backward force on the movable block 342. The backward force has a component in the tangential direction of the shaft, driving the movable block 342 to rotate backward around the axis. At the same time, the pin 21 slides along the inner wall of the notch 3421 to the bottom of the notch 3421 until the movable block 342 rotates to the position of the stop structure 3411, and is stopped by the stop structure 3411 and cannot continue to rotate. At this time, the drawer 2 is completely in place in the box body 1 and cannot continue to move backward. On the contrary, when the drawer 2 is pulled out from the box body 1, the pin 21 acts on the inner wall of the notch 3421, generating a forward force on the movable block 342, and the forward force has a component in the tangential direction of the rotating shaft, driving the movable block 342 to rotate forward around the axis. At the same time, the pin 21 slides from the bottom of the notch 3421 to the mouth of the notch 3421 along the inner wall of the notch 3421, and the drawer 2 is continued to be pulled out forward, and the pin 21 disengages from the notch 3421. At this time, the movable block 342 maintains the current state, that is, the opening of the notch 3421 faces forward or tilted forward, until the drawer 2 is pushed into the box body again and the pin 21 slides into the notch 3421.

[0064] In order to prevent the movable block 342 from being separated from the fixed block 341, an elastic connecting piece is further connected between the fixed block 341 and the movable block 342, and the two ends of the elastic connecting piece are connected to the fixed block 341 and the movable block 342 one by one to prevent the movable block 342 from being separated from the fixed block 341 when subjected to external force.

[0065] As a preferred embodiment, as shown in the figure, the elastic connecting member is a spring 343, and the two ends of the spring 343 have hooks 3431 and 3432 respectively. The movable block 342 is formed with a first hooking portion 3423, and the fixed block 341 is formed with a second hooking portion 3416. The two ends of the spring 343 are respectively hung on the first hooking portion 3423 and the second hooking portion 3416 through the hooks 3431 and 3432. The spring 343 is connected to the movable block 342 and the fixed block 341 through the two ends, respectively, so as to prevent the movable block 342 from being separated from the fixed block 341. In addition, the movement trajectory of the first hanging portion 3423 is to move on an arc with the rotation shaft 3422 as the center and the distance between the first hanging portion 3423 and the rotation shaft 3422 as the radius. The connecting line between the first hanging portion 3423 and the second hanging portion 3416 always satisfies that the angle between the first hanging portion 3423 and the stop structure 3411 is an acute angle, and the first hanging portion 3423 is located above the rotation shaft 3422. Fig.10a As shown, the balance position is when the direction of the movable block 342 rotates to satisfy the axis of the spring passing through the rotating shaft 3422. When the movable block 342 is at the balance position, the tension force F0 of the spring passes through the axis of the rotating shaft, so no tangential component is generated for the rotation of the rotating shaft. When the movable block 342 deviates from the balance position, there are two conditions, namely (1) the process of pushing the drawer into the box body and (2) the process of pulling the drawer out of the box body. For (1) the process of pushing the drawer into the box body, before reaching the balance position, as shown in FIG. Fig.10b As shown, the spring generates a pulling force F1, which causes the moving block to rotate clockwise, in the opposite direction to the direction in which the thrust causes it to rotate. The pulling force F1 prevents the drawer from advancing, and thus acts as a buffer for the drawer 2, preventing the drawer 2 from violently colliding with the box body 1 due to excessive thrust. As the drawer 2 continues to move backward, it exceeds the equilibrium position, as shown in FIG. Fig.10c As shown, the spring 343 generates a pulling force F2, which causes the movable block to rotate counterclockwise in the same direction as the thrust, thereby assisting the drawer in moving forward and allowing the drawer to quickly move into position in the last section of the stroke. After the drawer 2 is in position, the pulling force F2 always exists, which can prevent the drawer 2 from being accidentally pulled out due to vibration or other external forces inside the box 1, resulting in the loss of sealing performance. On the contrary, for (2) the process of pulling the drawer 2 out of the box 1, the pulling force first needs to overcome the pulling force F2, and then the drawer 2 is gradually pulled out to the equilibrium position. After exceeding the equilibrium position, the pulling force F1 causes the movable block to rotate in the same direction as the pulling force causes the movable block to rotate, thereby assisting the drawer 2 in being pulled out, facilitating its removal.

[0066] It should be noted that the spring 343 in this embodiment is always in a stretched state, and relies on the spring's own resilience to tighten the movable block 342 and the fixed block 341 to prevent them from falling off. When the movable block 342 rotates to different angles, the direction and magnitude of the spring's tension are different.

[0067] In order to ensure that the spring 343 is in a stable tension state, it is necessary to ensure that the tension direction of the spring 343 is parallel to the length direction of the spring 343, that is, the first hanging portion and the second hanging portion are at least partially located on the same vertical plane. Figure 11-13 As shown, the lower end of the movable block 342 has a middle seam 3424, the plane where the middle seam 3424 is located is perpendicular to the length direction of the rotating shaft 3422, the first hanging portion 3423 is located in the middle seam, and the first hanging portion 3423 is a convex structure formed by partially extending one side edge of the middle seam 3424 toward the middle seam 3424, so that the first hanging portion 3423 and the second hanging portion 3416 can be at least partially located on the same vertical plane, thereby ensuring that the spring 343 is in a stable tension state. At the same time, the space on the movable block 342 can be fully utilized, which is conducive to reducing the volume of the movable block 342, reducing its occupied space, and facilitating assembly. Fig.11 As shown, there are process holes 3425 around the first hanging portion 3423 to facilitate production.

[0068] The movable block 342 is inserted between the first support plate 3413 and the second support plate 3414 and rotates around the rotation axis. The stop structure 3411 is preferably connected between the first support plate 3413 and the second support plate 3414. When the movable block 342 rotates around the rotation axis, it can be stopped and limited by the stop structure 3411 from the front. The stop structure 3411 and the first support plate 3413 and the second support plate 3414 are preferably an integrally formed structure for easy production and manufacturing.

[0069] The rear end of the bottom support plate 3412 is formed with a claw 3417 with an opening facing forward, and the claw 3417 is located above the bottom support plate 3412. When the drawer locking structure is fixed to the box body 1, as shown in FIG. Fig.14 As shown, the fixing plate 33 is L-shaped, including a first side 331 arranged horizontally and a second side 332 arranged vertically. The first side 331 is fixed to the box body 1, and the locking structure 34 is fixed to the second side 332 of the fixing plate 33. Specifically, the claw 3417 is clamped to the end of the second side 332 to achieve the fixing of the locking structure to the box body 1 through the fixing plate 33.

[0070] like Fig.16 As shown, the front end of the second side 332 has a first fixing claw 333, and the rear end of the second side 332 has a second fixing claw 334. Fig.24 As shown, the front end of the box side wall 11 has a first flange 110 folded inwardly 180°, and the rear end of the box side wall 11 has a second flange 111 folded inwardly 180°. A fixing hole 112 is provided on the second flange 111, the first fixing claw 333 is fixed to the first flange 110, and the second fixing claw 334 is fixed to the second flange 111.

[0071] like Fig.15 As shown, the fixing ability of the claw 3417 is limited. In order to prevent the drawer locking structure from being displaced relative to the box body 1 when subjected to the force of the drawer or other external forces, at least one limiting hole 3418 is preferably provided on the bottom support plate 3412. The limiting hole 3418 cooperates with the fixing structure on the fixing plate 33, such as providing a third fixing claw on the fixing plate 33, and the third fixing claw is clamped in the limiting hole 3418, thereby achieving further fixation of the two. A card slot 3419 is also provided at the bottom of the bottom support plate 3412, and two fixing claws are provided on the fixing plate 33, and the opening directions of the two fixing claws are arranged facing each other, one of the fixing claws is inserted into the limiting hole 3418, and the other fixing claw is inserted into the card slot 3419, so that the drawer locking structure can be limited in at least two directions, that is, if the two fixing claws are arranged front and back, the drawer locking structure can be limited in the front and back directions, and if the two fixing claws are arranged left and right, the drawer locking structure can be limited in the left and right directions. In short, it can enhance the stability of the drawer locking structure and the L-shaped fixing plate.

[0072] like Fig.15 As shown, the slot 3419 is a semi-closed structure with one end open, which is formed by convex ribs protruding downward from the lower surface of the bottom support plate 3412. The fixing claw of the fixing plate is inserted into the slot from the opening of the slot 3419. The slot can limit the position in at least three directions in the horizontal direction at the same time. In conjunction with another claw arranged oppositely, the position can be limited in four directions in the horizontal direction at the same time.

[0073] In order to enhance the connection stability between the bracket and the bottom support plate 3412 and prevent the bracket from bending due to stress, preferably a plurality of first reinforcing ribs 3141 are formed between the first support plate 3413 and / or the second support plate 3414 and the bottom support plate 3412 .

[0074] like Fig.15 As shown, the bottom support plate 3412 extends downward from the connection position between the second support plate 3414 and the bottom support plate 3412 to form a side plate 3410, and the second hanging portion 3416 is located on the side plate 3410. The bottom of the bracket and located between the first support plate 3413 and the second support plate 3414 has a spring hole 3420 for the spring 343 to pass through. The upper end of the spring 343 is connected to the first hanging portion 3423 through a hook, and the other end passes through the spring hole 3420 and is connected to the second hanging portion 3416.

[0075] In order to improve the stability of the connection between the spring hook and the first hanging part 3423 and the second hanging part 3416, taking the connection between the spring and the second hanging part 3416 as an example, a hanging groove 34161 is provided on the lower surface of the second hanging part 3416, and the hook is inserted into the hanging groove 34161 to prevent the hook and the second hanging part 3416 from falling off. Similarly, a similar groove can also be provided on the upper surface of the first hanging part 3423, which also plays a role in preventing the hook from falling off.

[0076] In order to enhance the stability of the connection between the side plate 3410 and the bottom support plate 3412 , a second reinforcing rib 3101 is further provided between the side plate 3410 and the bottom support plate 3412 .

[0077] like Figure 17-Figure 20 As shown, a limiting structure 36 is provided at the front end of the first slide 31, and the limiting structure 36 includes a front baffle 361, and the front baffle 361 extends backward on one side close to the side wall 11 of the box body to form a side baffle 362, and a limiting protrusion 363 is formed on the surface of the side baffle 362 facing the side wall 11 of the box body. The upper end of the front baffle 361 has a slide rail connecting portion 364 extending backward, and the slide rail connecting portion 364 is fixedly connected to the first slide 31. When the first slide 31 slides into the box body 1, the limiting protrusion 363 cooperates with the side wall 11 of the box body to limit the depth of the first slide 31 sliding into the box body 1. Specifically, when the limiting protrusion 363 slides to the end of the side wall 11 of the box body, the protruding limiting protrusion 363 is stopped by the side wall 11 of the box body and cannot continue to slide in.

[0078] The slide rail connection part 364 includes a connection part body 3641, which extends backward from the upper end of the front baffle 361. The connection part body 3641 is inserted from the front end of the first slide 31 into the track cavity 310 thereof and is fixedly connected to the first slide 31. In the slide rail limiting structure of this embodiment, the slide rail connection part 364 is used to be fixed to the first slide 31. The front baffle 361 plays the role of connecting the slide rail connection part 364 and the side baffle 362 on the one hand, and can block the track cavity of the first slide 31 at its end to prevent water or dust, foreign matter, etc. from entering, so as to avoid the problem of unsmooth sliding caused by the above reasons. By forming a limiting protrusion 363 on the surface of the side baffle 362 facing the side wall 11 of the box body, the first slide 31 can be limited in cooperation with the side wall 11 of the box body, so as to ensure that the drawer can be accurately positioned, reliably and effectively.

[0079] As a preferred embodiment, Fig.21As shown, in order to prevent the slide rail limiting structure from falling off from the first slideway 31 due to the long-term back and forth pulling and collision of the drawer, and to improve the stability of the fixation of the two, an elastic component 3642 is formed on the upper surface of the connecting part body 3641, and the elastic component 3642 at least partially protrudes from the upper surface of the connecting part body 3641. The first slideway 31 is an inverted U-shaped groove structure, and an assembly hole 311 that matches the elastic component is opened on the groove bottom of the first slideway 31. When the connecting part body 3641 is inserted into the track cavity of the first slideway 31, the elastic component 3642 slides into the assembly hole 311. The elastic component 3642 can be limited by the groove walls around the assembly hole 311, playing the role of fixing the slide rail limiting structure and the first slideway 31. The assembly hole 311 is a through hole that passes through from top to bottom, and is fixed by using an elastic component 3642. When disassembling, it is only necessary to operate on the upper surface of the first slide 31, press the elastic component 3642 downward so that the upper surface of the elastic component 3642 is lower than the assembly hole 311, and then apply external force along the length direction of the first slide 31. It is easy to pull the slide rail limiting structure out of the slide rail cavity, thereby achieving the technical effect of convenient disassembly and assembly.

[0080] Since the elastic component 3642 at least partially protrudes from the upper surface of the connecting part body 3641, in order to be able to apply a small force to insert the slide rail connecting part 364 into the slide rail cavity, the rear end of the elastic component 3642 is connected to the connecting part body 3641, and the front end is a free end. The front end of the elastic component 3642 is high, the rear end is low, and the transition between the two ends is smooth. When the slide rail connecting part 364 is inserted into the slide rail cavity, the rear end of the slide rail connecting part 364 is inserted first. Since its rear end is low, the initial insertion is very easy. As the slide rail connecting part 364 gradually goes deeper into the slide rail cavity, the elastic component 3642 is squeezed by the inner wall of the first slideway and compressed downward until the elastic component 3642 slides into the assembly hole 311, which is also very labor-saving. In addition, the design of the high front end and low rear end of the elastic component 3642 means that when the slide rail limiting structure is hit and caused to detach by external forces, the elastic component 3642 hooks the assembly hole 311 in the assembly hole 311 in the shape of a barb, further improving the stability of the connection.

[0081] At least one reinforcing plate rib 365 is further provided between the connecting portion body 3641 and the front baffle 361. The reinforcing plate rib 365 includes a first connecting edge 3651 and a second connecting edge 3652. The reinforcing plate rib 365 is located below the connecting portion body 3641, wherein the first connecting edge 3651 is connected to the lower surface of the connecting portion body 3641, and the second connecting edge 3652 is connected to the front baffle 361. The reinforcing plate rib 365 is used to enhance the stability of the connection between the connecting portion body 3641 and the front baffle 361. The connecting portion body 3641 and the front baffle 361 are vertically connected, and the corresponding first connecting edge 3651 and the second connecting edge 3652 are in a vertical relationship. Of course, the connection between the connecting portion body 3641 and the front baffle 361 is not limited to a vertical relationship, and the angle between the first connecting edge 3651 and the second connecting edge 3652 can be matched with the angle between the connecting portion body 3641 and the front baffle 361.

[0082] In this embodiment, it is preferred that there are two reinforcing plate ribs 365, which are arranged in parallel, and the width d between the outer side walls of the two reinforcing plate ribs 365 is not greater than the slot width of the first slide 31. At the same time, the reinforcing plate ribs 365 are arranged along the length direction of the slide rail connecting part 364, so that when the slide rail connecting part 364 is inserted into the slide rail cavity, the reinforcing plate ribs 365 play a guiding role.

[0083] like Fig.21 , Fig. 22 As shown, the reinforcing plate rib 365 is in a horizontal right-angled trapezoid, the hypotenuse of the right-angled trapezoid is located at the bottom, and a second notch 3653 is opened on the hypotenuse, and the top edge of the second notch 3653 is parallel to the first connecting edge 3651. In this way, it is equivalent to having a rectangular plate-shaped structure 3654 at the rear end of the reinforcing plate rib 365, and the rectangular plate-shaped structure 3654 serves as a guide and facilitates the alignment of the slide rail connecting portion 364 with the slide rail cavity.

[0084] like Fig.23 As shown, the free end of the side baffle 362 has an inclined outward-turned end edge 3621, and the inner surface of the side wall 11 of the box body has a boss 112 that matches the end edge 3621, and the boss 112 has an inclined surface 1121 that matches the end face 36211 of the end edge 3621. When the first slide 31 is pushed into the box body, the end face 36211 of the end edge 3621 first contacts the inclined surface 1121 of the boss 112, and then the two surfaces slide by friction until the limiting protrusion 363 moves to the end face 113 of the box body, which can buffer the impact force between the limiting protrusion 363 and the box body, which is beneficial to prolonging the service life.

[0085] like Fig.19 As shown, a weight-reducing hole 366 is provided on the limiting protrusion 363 along its width direction to reduce the weight of the slide rail limiting structure.

[0086] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A guide assembly, characterized in that: The cam is configured to move the first and second cams together to form a rotation between the two guide rails and the guide rails, and the rotation between the two guide rails is configured to move the first and second guide rails together.

2. The guide assembly according to claim 1, characterized in that: The fixed block is provided with a stop structure behind the movable block for limiting the rotation angle of the movable block, and the drawer is provided with a pin shaft matching the notch. When the drawer is pushed to the rear of the box body, the pin shaft is inserted into the notch and drives the movable block to rotate backward around the axis until the movable block is stopped by the stop structure.

3. The guide assembly according to claim 1, characterized in that: An elastic connecting member is also connected between the fixed block and the movable block. The elastic connecting member is a spring. Both ends of the spring have hooks respectively. A first hanging part is formed on the movable block, and a second hanging part is formed on the fixed block. Both ends of the spring are hung on the first hanging part and the second hanging part respectively through the hooks.

4. The guide assembly according to any one of claims 1 to 3, characterized in that: A limiting structure is provided at the front end portion of the first slide, and the limiting structure includes a front baffle, and the front baffle extends backward on a side close to the side wall of the box body to form a side baffle, and a limiting protrusion is formed on the surface of the side baffle facing the side wall of the box body, and the upper end of the front baffle has a slide rail connecting portion extending backward, and the slide rail connecting portion is fixedly connected to the first slide, and when the first slide slides toward the inside of the box body, the limiting protrusion cooperates with the side wall of the box body to limit the depth of the first slide sliding into the box body.

5. The guide assembly according to claim 4, characterized in that: The slide rail connection part includes a connection part body, which extends backward from the upper end of the front baffle. The connection part body is inserted into the track cavity of the first slide rail from the front end thereof and is fixedly connected to the first slide rail.

6. The guide assembly according to claim 5, characterized in that: An elastic component is formed on the upper surface of the connecting part body, and the elastic component at least partially protrudes from the upper surface of the connecting part body. The first slide is an inverted U-shaped groove structure, and an assembly hole matching the elastic component is opened on the bottom of the groove of the first slide. When the connecting part body is inserted into the track cavity of the first slide, the elastic component slides into the assembly hole.

7. The guide assembly according to any one of claims 1 to 3, characterized in that: The fixing plate is L-shaped, and includes a first side arranged horizontally and a second side arranged vertically, the front end of the second side has a first fixing claw, and the rear end of the second side has a second fixing claw.

8. The guide assembly according to claim 7, characterized in that: Two claws are formed on the lower surface of the first side, the clamping parts of the two claws are arranged to face each other, and the two claws are clamped and fixed with the locking structure.

9. A dishwasher, comprising a housing and a drawer, wherein the drawer and the housing are slidably connected via a guide assembly, characterized in that: The guide assembly is the guide assembly described in any one of claims 1 to 8, the fixing plate is fixed to the box body, and the first slide is fixed to the drawer.

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