Door handle assembly structure and dishwasher

Abstract

The utility model relates to a door handle assembly structure and dish washer, including door body subassembly, handle and be used for assembling handle on the connecting assembly of door body subassembly, door body subassembly includes glass door board and door frame, and the first through -hole, second through -hole are set up respectively on door frame and glass door board, and the connecting assembly includes connecting washer and connecting screw, and through connecting washer partial insertion glass door board's second through -hole in, and the third through -hole is set up on connecting washer, and when installing, connecting screw passes through the first through -hole on door frame, the third through -hole on connecting washer in proper order and is connected with the threaded hole on handle with screw thread, the utility model discloses through connecting washer partial embedding glass door board's second through -hole in, and the locking force of connecting screw and threaded hole is evenly dispersed to the hole wall of second through -hole, avoid causing the stress concentration of connecting washer or connecting screw and glass door board to take place because of point contact, lead to the risk of glass door board easy to be pressed and be cracked.

Description

Technical Field

[0001] This utility model relates to the field of dishwasher technology, and in particular to a door handle assembly structure and a dishwasher. Background Technology

[0002] Currently, dishwasher doors typically have metal handles mounted on the glass panel. Traditionally, a plastic or rubber gasket is placed between the handle and the glass to separate them. Alternatively, in some designs, the handle base directly contacts the glass surface. However, this approach has significant drawbacks: the edges of the handle or the fastening screws used in assembly can easily create localized stress concentrations during installation and use. Especially when the screws are tightened, their heads or sharp parts of the handle body may directly or indirectly press or impact the glass, causing the glass door panel to crack or develop micro-cracks. This not only affects the product's appearance and normal use but also introduces additional quality risks and after-sales maintenance costs. Utility Model Content

[0003] Therefore, it is necessary to provide a door handle assembly structure and a dishwasher to address the aforementioned problems with dishwasher doors.

[0004] A door handle assembly structure includes a door body assembly, a handle, and a connecting assembly, wherein the handle has a threaded hole;

[0005] The door assembly includes a glass door panel and a door frame disposed on the glass door panel, and the connecting assembly includes a connecting gasket and a connecting screw;

[0006] The door frame and the glass door panel are respectively provided with a first through hole and a second through hole, and the first through hole and the second through hole are coaxially arranged.

[0007] The connecting washer is at least partially inserted into the second through hole, and the connecting washer has a third through hole. The connecting screw passes through the first through hole and the third through hole in sequence and is threadedly connected to the threaded hole.

[0008] This application discloses a door handle assembly structure, including a door body assembly, a handle, and a connecting assembly for assembling the handle onto the door body assembly. The door body assembly includes a glass door panel and a door frame, with a first through hole and a second through hole respectively on the door frame and the glass door panel. The connecting assembly includes a connecting washer and a connecting screw. The connecting washer is partially inserted into the second through hole of the glass door panel, and the connecting washer has a third through hole. During installation, the connecting screw passes through the first through hole on the door frame and the third through hole on the connecting washer in sequence, and then is threadedly connected to the threaded hole on the handle. This application, by embedding the connecting washer partially into the second through hole of the glass door panel, evenly distributes the locking force of the connecting screw and the threaded hole to the wall of the second through hole, avoiding stress concentration caused by point contact between the connecting washer or the connecting screw and the glass door panel, which could lead to the risk of the glass door panel being easily cracked.

[0009] In one embodiment, the connecting washer is made of a non-metallic elastic material. By inserting the connecting washer at least partially into the second through hole in the glass door panel, during the assembly process of the connecting screw and the threaded hole on the handle, the connecting washer effectively prevents direct contact between the connecting screw and the glass door panel. Moreover, the connecting washer can deform, providing cushioning against hard impacts and compressions between the glass door panel and the connecting screw.

[0010] In one embodiment, the handle includes a grip and a mounting base connected to the grip. A limiting post is formed within the mounting base, and the limiting post has a threaded hole. A first slot communicating with the third through hole is also formed on the connecting gasket. The limiting post is inserted into the first slot to achieve positioning of the threaded hole and the third through hole. By forming a positioning structure between the threaded hole and the third through hole through the limiting post and the first slot, during assembly, the limiting post on the handle can be first inserted into the first slot on the connecting gasket. At this time, the threaded hole and the third through hole are automatically coaxially aligned. Then, the pre-positioned and assembled handle and connecting gasket are directly placed on the glass door panel, and the gasket is inserted into the second through hole of the glass door panel. After the connecting screw passes through the first through hole of the door frame, it can be directly aligned with the threaded hole without repeated adjustments, achieving fast and accurate assembly positioning and significantly improving production efficiency.

[0011] In one embodiment, a limiting step is formed on the outer periphery of the connecting gasket, and the limiting post and the interior of the mounting base form a first cavity. The connecting gasket extends at least partially into the first cavity, and the limiting step is sandwiched between the mounting base and the glass door panel. By forming a limiting step on the outer periphery of the connecting gasket, during assembly, the connecting gasket is partially inserted into the first cavity of the handle until the limiting step engages with the edge of the mounting base. When the connecting screw and threaded hole are tightened, the mounting base is pulled inward to firmly clamp the limiting step between the mounting base and the glass door panel, effectively preventing direct contact and rigid contact between the mounting base and the glass door panel. Furthermore, since the connecting gasket is made of a non-metallic elastic material, when the limiting step is tightly clamped between the mounting base and the glass door panel, the material of the limiting step is compressed and deformed, thereby forming an effective sealing ring around the second through hole, preventing moisture inside the dishwasher cavity from leaking into the door body or outside through the second through hole.

[0012] In one embodiment, the connecting gasket also has a limiting groove, and the mounting base has a limiting rib. The limiting groove and the limiting rib are adapted to each other, and the limiting rib is inserted into the limiting groove to restrict the rotation of the limiting post relative to the limiting groove. By using the mounting base and the connecting gasket, and the cooperation of the limiting rib and the limiting groove, the rotation of the limiting post relative to the limiting groove is restricted. This effectively avoids the risk of the mounting base rotating relative to the connecting gasket due to friction between the connecting screw and the limiting post during the tightening process. Rotation of the connecting gasket can easily cause friction or wear on the wall of the second through hole, thereby increasing the risk of the glass door panel breaking.

[0013] In one embodiment, the diameter of the first through hole is smaller than the diameter of the second through hole. Because the diameter of the first through hole is smaller than that of the second through hole, during the assembly of the connecting screw, the connecting screw first passes through the smaller-diameter first through hole. The first through hole automatically corrects the angle and position of the connecting screw, and the connecting screw is automatically confined within the range of the second through hole, reducing the need for screw alignment. Furthermore, the connecting washer is partially inserted into the second through hole, avoiding direct contact between the hole wall of the second through hole and the screw, ensuring that the force on the glass door panel is transmitted by the connecting washer and evenly distributed.

[0014] In one embodiment, the door frame is further provided with a second slot communicating with the first through hole, the depth of the second slot being greater than the thickness of the nut of the connecting screw. Because the depth of the second slot on the door frame is greater than the thickness of the nut of the connecting screw, after the connecting screw is tightened, its nut is completely within the depth range of the second slot and will not protrude from the inner surface of the door frame, thus achieving a flush installation of the connecting screw and the door frame. Furthermore, by hiding the nut of the connecting screw within the second slot, not only is the aesthetic impact of the connecting screw on the door frame reduced, but interference from protruding nuts with other components inside the dishwasher is also avoided.

[0015] In one embodiment, a sealing plug is provided in the second slot.

[0016] In one embodiment, the glass door panel and the door frame are connected by adhesive. This adhesive connection creates a sealing layer between the glass door panel and the door frame, preventing moisture and condensation inside the dishwasher cavity from leaking to the outside through the gap between the glass door panel and the door frame. Furthermore, compared to traditional methods using screws or metal clips, this avoids significant stress concentration at the contact points between the door frame and the glass door panel, reducing the risk of glass door panel breakage.

[0017] A dishwasher including the door handle assembly structure described in any of the above claims. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the door handle assembly structure in one embodiment;

[0019] Figure 2 An example of an explosion head for a door handle assembly structure;

[0020] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0021] Figure 4 This is a cross-sectional view of the door handle assembly structure in one embodiment;

[0022] Figure 5 for Figure 4 Enlarged view of section B;

[0023] Figure 6 This is a schematic diagram of the structure of the connecting gasket in one embodiment.

[0024] The correspondence between the reference numerals and the component names is as follows:

[0025] 10 Door body assembly, 11 Glass door panel, 12 Door frame, 101 First through hole, 102 Second through hole, 103 Second slot;

[0026] 20 Handle, 21 Grip, 22 Mounting base, 221 Limiting post, 222 Limiting rib, 201 Threaded hole, 202 First cavity;

[0027] 30 Connecting component, 31 Connecting washer, 32 Connecting screw, 301 Third through hole, 302 First slot, 303 Limiting step, 304 Limiting groove. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0030] The door handle assembly structure of some embodiments of the present invention is described below with reference to the accompanying drawings.

[0031] like Figures 1 to 6 As shown, this embodiment discloses a door handle assembly structure, including a door body assembly 10, a handle 20 and a connecting assembly 30, wherein the handle 20 is provided with a threaded hole 201;

[0032] The door assembly 10 includes a glass door panel 11 and a door frame 12 disposed on the glass door panel 11; the connecting assembly 30 includes a connecting gasket 31 and a connecting screw 32.

[0033] The door frame 12 and the glass door panel 11 are respectively provided with a first through hole 101 and a second through hole 102, and the first through hole 101 and the second through hole 102 are coaxially arranged.

[0034] The connecting washer 31 is at least partially inserted into the second through hole 102, and the connecting washer 31 has a third through hole 301. The connecting screw 32 passes through the first through hole 101 and the third through hole 301 in sequence and is threaded into the threaded hole 201.

[0035] This application discloses a door handle assembly structure, including a door body assembly 10, a handle 20, and a connecting assembly 30 for assembling the handle 20 onto the door body assembly 10. The door body assembly 10 includes a glass door panel 11 and a door frame 12. The door frame 12 and the glass door panel 11 are respectively provided with a first through hole 101 and a second through hole 102. The connecting assembly 30 includes a connecting washer 31 and a connecting screw 32. The connecting washer 31 is partially inserted into the second through hole 102 of the glass door panel 11, and the connecting washer 31 is provided with a third through hole 301. During installation... After the connecting screw 32 passes through the first through hole 101 on the door frame 12 and the third through hole 301 on the connecting washer 31 in sequence, it is threadedly connected to the threaded hole 201 on the handle 20. In this application, the connecting washer 31 is partially embedded in the second through hole 102 of the glass door panel 11, so that the locking force of the connecting screw 32 and the threaded hole 201 is evenly distributed to the hole wall of the second through hole 102, avoiding stress concentration caused by point contact between the connecting washer 31 or the connecting screw 32 and the glass door panel 11, which may lead to the risk that the glass door panel 11 is easily cracked.

[0036] In addition to the features of the above embodiments, this embodiment further specifies that the connecting gasket 31 is a non-metallic elastic material.

[0037] The above embodiments further specify that the connecting gasket 31 is a non-metallic elastic material. By inserting the connecting gasket 31 at least partially into the second through hole 102 on the glass door panel 11, during the assembly process of the connecting screw 32 and the threaded hole 201 on the handle 20, the connecting gasket 31 effectively prevents direct contact between the connecting screw 32 and the glass door panel 11. Moreover, the connecting gasket 31 can deform, which can provide buffer for the hard impact and compression between the glass door panel 11 and the connecting screw 32.

[0038] The connecting gasket 31 can be made of a non-metallic elastic material. The hardness of the non-metallic elastic material is much lower than that of the metal handle 20 and the glass door panel 11. For example, the material of the connecting gasket 31 is plastic or rubber. When the connecting screw 32 is tightened, the connecting gasket 31 will undergo a small, controllable elastic deformation, thereby absorbing most of the installation preload and vibration during use, ensuring that the glass door panel 11 will not be subjected to hard impact and compression from the metal parts.

[0039] like Figures 2 to 5 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the handle 20 includes a grip 21 and a mounting base 22 connected to the grip 21. A limiting post 221 is formed in the mounting base 22. A threaded hole 201 is provided on the limiting post 221. A first slot 302 communicating with the third through hole 301 is also provided on the connecting gasket 31. The limiting post 221 is inserted into the first slot 302 to realize the positioning of the threaded hole 201 and the third through hole 301.

[0040] The above embodiment further defines the positioning structure in which the limiting post 221 and the first slot 302 form the threaded hole 201 and the third through hole 301. During assembly, the limiting post 221 on the handle 20 can be inserted into the first slot 302 on the connecting pad 31. At this time, the threaded hole 201 and the third through hole 301 are automatically aligned coaxially. Then, the pre-positioned and assembled handle 20 and connecting pad 31 are placed directly on the glass door panel 11 and the pad is inserted into the second through hole 102 of the glass door panel 11. After the connecting screw 32 passes through the first through hole 101 of the door frame 12, it can be directly aligned with the threaded hole 201 without repeated adjustment of alignment, thus achieving fast and accurate assembly positioning and greatly improving production efficiency.

[0041] It should be noted that there can be two mounting bases 22, with the two mounting bases 22 distributed at both ends of the handle 21. In other embodiments, the number of mounting bases 22 can also be three, four, or more.

[0042] like Figures 4 to 6 As shown, in addition to the features of the above embodiments, this embodiment further defines: a limiting step 303 is formed on the outer periphery of the connecting gasket 31, a first cavity 202 is formed inside the limiting post 221 and the mounting base 22, the connecting gasket 31 extends at least partially into the first cavity 202, and the limiting step 303 is sandwiched between the mounting base 22 and the glass door panel 11.

[0043] The above embodiment further defines the structure in which the outer periphery of the connecting gasket 31 forms a limiting step 303. During assembly, the connecting gasket 31 is partially inserted into the first cavity 202 of the handle 20 until the limiting step 303 locks the edge of the mounting base 22. When the connecting screw 32 is locked to the threaded hole 201, the mounting base 22 is pulled inward to firmly clamp the limiting step 303 between the mounting base 22 and the glass door panel 11, which can effectively prevent the mounting base 22 and the glass door panel 11 from directly contacting each other and forming a rigid contact. In addition, since the connecting gasket 31 is made of non-metallic elastic material, when the limiting step 303 is tightly clamped between the mounting base 22 and the glass door panel 11, part of the material of the limiting step 303 will be squeezed and deformed, thereby forming an effective sealing ring around the second through hole 102, preventing moisture in the dishwasher cavity from leaking from the second through hole 102 to the inside or outside of the door.

[0044] like Figures 2 to 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a limiting groove 304 is also provided on the connecting gasket 31, and a limiting rib 222 is provided on the mounting base 22. The limiting groove 304 and the limiting rib 222 are adapted to each other, and the limiting rib 222 is inserted into the limiting groove 304 to restrict the limiting post 221 from rotating relative to the limiting groove 304.

[0045] The above embodiment further defines that the mounting base 22 and the connecting gasket 31 are connected by the limiting rib 222 and the limiting groove 304 to restrict the rotation of the limiting post 221 relative to the limiting groove 304. This can effectively prevent the mounting base 22 from rotating relative to the connecting gasket 31 due to friction between the connecting screw 32 and the limiting post 221 during the tightening process. The rotation of the connecting gasket 31 can easily cause friction or wear on the hole wall of the second through hole 102, thereby increasing the risk of the glass door panel 11 breaking.

[0046] like Figure 4 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the diameter of the first through hole 101 is smaller than the diameter of the second through hole 102.

[0047] The above embodiment further defines the diameter of the first through hole 101 as smaller than the diameter of the second through hole 102. Based on this, during the assembly of the connecting screw 32, the connecting screw 32 first passes through the smaller diameter first through hole 101. The first through hole 101 automatically corrects the angle and position of the connecting screw 32, and the connecting screw 32 is automatically limited within the range of the second through hole 102, reducing the operation of aligning the connecting screw 32. In addition, the connecting washer 31 is partially inserted into the second through hole 102, avoiding direct contact between the hole wall of the second through hole 102 and the screw, ensuring that the force on the glass door panel 11 is transmitted by the connecting washer 31 and is evenly dispersed.

[0048] like Figure 4 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a second slot 103 communicating with the first through hole 101 is also provided on the door frame 12, and the depth of the second slot 103 is greater than the thickness of the nut of the connecting screw 32.

[0049] The above embodiment further limits the depth of the second slot 103 on the door frame 12 to be greater than the thickness of the nut of the connecting screw 32. After the connecting screw 32 is tightened, its nut is completely located within the depth range of the second slot 103 and will not protrude from the inner surface of the door frame 12, thereby achieving a flat installation of the connecting screw 32 and the door frame 12. In addition, by hiding the nut of the connecting screw 32 in the second slot 103, not only is the impact of the connecting screw 32 on the aesthetics of the door frame 12 reduced, but also interference with other components inside the dishwasher due to the protruding nut can be avoided.

[0050] In addition to the features of the above embodiments, this embodiment further specifies that a sealing plug is provided in the second slot 103. Specifically, after the connecting screw 32 is tightened, the sealing plug is inserted into the second slot 103, which not only hides the connecting screw 32, but also prevents moisture inside the dishwasher from leaking from the handle 20 assembly structure.

[0051] In addition to the features of the above embodiments, this embodiment further specifies that the glass door panel 11 and the door frame 12 are connected by adhesive.

[0052] The above embodiments further specify that the glass door panel 11 and the door frame 12 are connected by adhesive. The adhesive layer forms a sealing layer between the glass door panel 11 and the door frame 12, which can prevent water vapor and condensate in the dishwasher cavity from leaking to the outside through the gap between the glass door panel 11 and the door frame 12. In addition, compared with the traditional method of tightening with screws or metal clips, it avoids the generation of large concentrated stress at the contact point between the door frame 12 and the glass door panel 11, and reduces the risk of the glass door panel 11 breaking.

[0053] In addition to the features of the above embodiments, this embodiment further specifies that the door frame 12 is made of plastic or wood.

[0054] The above embodiments further specify that the door frame 12 is made of plastic or wood. When the connecting screw 32 is tightened, the plastic or wood door frame 12 undergoes slight deformation at the edge of the first through hole 101, reducing the concentrated stress of the door frame 12 on the glass door panel 11. With the cooperation of the connecting gasket 31, the possibility of the glass door panel 11 breaking is greatly reduced.

[0055] In addition to the features of the above embodiments, this embodiment further specifies that the handle 20 is made of aluminum alloy or stainless steel.

[0056] This embodiment provides a dishwasher, including the door handle assembly structure described above.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A door handle assembly structure, characterized in that, It includes a door assembly (10), a handle (20) and a connecting assembly (30), wherein the handle (20) has a threaded hole (201); The door assembly (10) includes a glass door panel (11) and a door frame (12) disposed on the glass door panel (11), and the connecting assembly (30) includes a connecting gasket (31) and a connecting screw (32); The door frame (12) and the glass door panel (11) are respectively provided with a first through hole (101) and a second through hole (102), and the first through hole (101) and the second through hole (102) are coaxially arranged; The connecting washer (31) is at least partially inserted into the second through hole (102), and the connecting washer (31) has a third through hole (301). The connecting screw (32) passes through the first through hole (101), the third through hole (301) and is threadedly connected to the threaded hole (201).

2. The door handle assembly structure according to claim 1, characterized in that, The connecting gasket (31) is made of a non-metallic elastic material.

3. The door handle assembly structure according to claim 2, characterized in that, The handle (20) includes a grip (21) and a mounting base (22) connected to the grip (21). A limiting post (221) is formed in the mounting base (22). The limiting post (221) has a threaded hole (201). The connecting gasket (31) also has a first slot (302) communicating with the third through hole (301). The limiting post (221) is inserted into the first slot (302) to achieve the positioning of the threaded hole (201) and the third through hole (301).

4. The door handle assembly structure according to claim 3, characterized in that, The connecting gasket (31) forms a limiting step (303) on its outer periphery, the limiting post (221) and the interior of the mounting base (22) form a first cavity (202), the connecting gasket (31) extends at least partially into the first cavity (202), and the limiting step (303) is sandwiched between the mounting base (22) and the glass door panel (11).

5. The door handle assembly structure according to claim 3, characterized in that, The connecting gasket (31) is also provided with a limiting groove (304), and the mounting base (22) is provided with a limiting rib (222). The limiting groove (304) is adapted to the limiting rib (222), and the limiting rib (222) is inserted into the limiting groove (304) to restrict the rotation of the limiting post (221) relative to the limiting groove (304).

6. The door handle assembly structure according to claim 1, characterized in that, The diameter of the first through hole (101) is smaller than the diameter of the second through hole (102).

7. The door handle assembly structure according to claim 1, characterized in that, The door frame (12) is also provided with a second slot (103) that communicates with the first through hole (101), and the depth of the second slot (103) is greater than the thickness of the nut of the connecting screw (32).

8. The door handle assembly structure according to claim 1, characterized in that, The glass door panel (11) and the door frame (12) are connected by adhesive.

9. The door handle assembly structure according to any one of claims 1-8, characterized in that, The door frame (12) is made of plastic or wood. And / or, The handle (20) is made of aluminum alloy or stainless steel.

10. A dishwasher, characterized in that, The door handle assembly structure includes any one of claims 1-9.

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