Fastening device and washing machine

Abstract

The utility model discloses a fastening device and a washing machine. The fastening device comprises a first connecting piece, a second connecting piece, a supporting piece and a fastening piece. A mounting hole is formed in the first connecting piece, the supporting piece is detachably connected with the mounting hole, and a connecting hole which can be connected with the fastening piece in a matched mode is formed in the middle of the supporting piece; the second connecting piece is provided with an assembling hole for the fastening piece to penetrate through and limit, and the fastening piece penetrates through the assembling hole and then is connected with the supporting piece in a fastened mode so as to seal the first connecting piece and the second connecting piece. According to the fastening device, due to the arrangement of the supporting piece, when the fastening piece is disassembled and assembled multiple times, if the sealing effect between the supporting piece and the fastening piece becomes poor, a new supporting piece can be replaced, and therefore the sealing effect between the first connecting piece and the second connecting piece is guaranteed, and reliability is improved.

Description

Technical Field

[0001] The utility model relates to the field of washing machine equipment, in particular to a fastening device and a washing machine. Background Art

[0002] At present, the water storage barrel of a drum washing machine is generally divided into two parts, a front barrel and a rear barrel. The front barrel is provided with a clothing input port, and the rear barrel is integrated with bearings. The front barrel and the rear barrel are generally fastened with screws.

[0003] In the prior art, since the water storage barrel is generally made of reinforced PP or other plastic materials, the fastening screw holes are generally designed at the outer edges of the front barrel and the rear barrel, forming an integrated structure with the front barrel and the rear barrel.

[0004] As users have higher and higher requirements for the cleanliness of the washing machine drum, they often need to disassemble the front and rear drums to clean the inside of the front and rear drums. However, since the screw holes are part of the front and rear drums, the threaded holes are also made of plastic, which is prone to thread slippage after multiple disassembly and assembly. In addition, since the threaded holes are integrated with the front and rear drums, they cannot be repaired or replaced, which makes it impossible to tighten and seal the connection between the threaded holes and the screws, which easily causes water leakage in the water storage barrel.

[0005] Therefore, how to improve the reliability of the fastening device is a technical problem that those skilled in the art currently need to solve. Utility Model Content

[0006] The utility model aims to provide a fastening device and a washing machine, which can improve the sealing effect of a water storage barrel, are convenient to replace and have low cost.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A fastening device comprises a first connecting member, a second connecting member, a supporting member and a fastening member;

[0009] The first connecting member is provided with a mounting hole, the supporting member is detachably connected to the mounting hole, and the middle of the supporting member is provided with a connecting hole which can be matched and connected with the fastener;

[0010] The second connecting member is provided with an assembly hole for the fastener to penetrate and limit. After the fastener penetrates the assembly hole, it is fastened to the supporting member to seal the first connecting member and the second connecting member.

[0011] Preferably, a step portion is provided at one end of the support member away from the fastener; the step portion can be snap-fitted with the end of the mounting hole of the first connecting member, or a step surface is provided at one end of the mounting hole away from the second connecting member, and the step portion contacts and positions the step surface.

[0012] Preferably, a guide column is provided on a side of the second connecting member close to the first connecting member, a guide hole is provided on a side of the supporting member close to the second connecting member, and the guide column is cooperatively connected with the guide hole.

[0013] Preferably, the sides of the guide column close to the guide hole are both inclined surfaces, and the diameter of the guide hole gradually increases towards the direction close to the guide column.

[0014] Preferably, a buckle is provided at one end of the support member close to the second connecting member, an anti-slip groove is provided on the first connecting member, the anti-slip groove is connected to the mounting hole, and the buckle can be engaged with the anti-slip groove after passing through the mounting hole.

[0015] Preferably, the support member comprises a working support member and a spare support member, and the spare support member is detachably mounted on the working support member.

[0016] Preferably, the front ends of the working support member and the spare support member are both provided with buckles, and the rear ends are both provided with slots, and the buckles of the spare support member can be detachably engaged with the slots of the working support member.

[0017] Preferably, at least one anti-rotation portion is provided in the circumferential direction of the support member, and a limiting portion cooperating with the anti-rotation portion is provided in the mounting hole of the first connecting member.

[0018] Preferably, the spare supporting member is integrally formed on the first connecting member and / or the second connecting member.

[0019] The utility model also provides a washing machine, comprising a water storage barrel and any one of the above-mentioned fastening devices for fastening a front barrel and a rear barrel of the water storage barrel.

[0020] The fastening device provided by the utility model includes a first connecting member, a second connecting member, a support member and a fastener; the first connecting member is provided with a mounting hole, the support member is detachably connected to the mounting hole, and the middle part of the support member is provided with a connecting hole that can be matched with the fastener; the second connecting member is provided with an assembly hole for the fastener to pass through and limit, and after the fastener passes through the assembly hole, it is fastened to the support member to seal the first connecting member and the second connecting member. The fastening device provided by the utility model, through the setting of the support member, uses the support member as a transition member to achieve the purpose of fastening the first connecting member and the second connecting member by the fastener. Due to the setting of the support member, when the fastener is disassembled and assembled for multiple times, if the sealing effect between the support member and the fastener becomes poor, the support member can be replaced with a new one, thereby ensuring the sealing effect between the first connecting member and the second connecting member and improving reliability.

[0021] The washing machine provided by the utility model is provided with the above-mentioned fastening device. Since the fastening device has the above-mentioned technical effects, the washing machine provided with the fastening device should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the positions of the fastening device and the water storage bucket provided by the utility model;

[0024] Figure 2 A structural schematic diagram of a specific implementation of the fastening device provided by the utility model;

[0025] Figure 3 for Figure 2 A cross-sectional view of the fastening device shown;

[0026] Figure 4 This is a schematic structural diagram of the first connecting member in the fastening device provided by the utility model;

[0027] Figure 5 for Figure 4 A cross-sectional view of the first connecting member shown;

[0028] Figure 6 This is a schematic diagram of the structure of the support member in the fastening device provided by the utility model;

[0029] Figure 7 A schematic diagram of the assembly structure of the support member and the first connecting member in the fastening device provided by the utility model;

[0030] Figure 8 A schematic diagram of the assembly structure of the working support member and the spare support member in the fastening device provided by the utility model;

[0031] Fig. 9 for Figure 8 A schematic diagram of the assembly structure of the working support member, the standby support member and the first connecting member is shown;

[0032] Fig.10 A schematic diagram of the arrangement position of the spare support member in the fastening device provided by the utility model;

[0033] Fig.11 for Fig.10A schematic diagram of the structure of the broken portion of the spare support member shown;

[0034] Among them: fastening device 1; first connecting member 11; mounting hole 111; anti-slip groove 112; step surface 113; second connecting member 12; guide column 121; support member 13; step portion 131; buckle 132; slot 133; guide hole 134; working support member 135; spare support member 136; breaking portion 137; anti-rotation portion 138; fastener 14; water storage barrel 2. DETAILED DESCRIPTION

[0035] The core of the utility model is to provide a fastening device and a washing machine, which can significantly improve the fastening and sealing effect of the front barrel and the rear barrel of the water storage barrel, and are reliable in use and convenient in processing.

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Please refer to Figures 1 to 11 , Figure 1 A schematic diagram of the positions of the fastening device and the water storage bucket provided by the utility model; Figure 2 A structural schematic diagram of a specific implementation of the fastening device provided by the utility model; Figure 3 for Figure 2 A cross-sectional view of the fastening device shown; Figure 4 This is a schematic structural diagram of the first connecting member in the fastening device provided by the utility model; Figure 5 for Figure 4 A cross-sectional view of the first connecting member shown; Figure 6 This is a schematic diagram of the structure of the support member in the fastening device provided by the utility model; Figure 7 A schematic diagram of the assembly structure of the support member and the first connecting member in the fastening device provided by the utility model; Figure 8 A schematic diagram of the assembly structure of the working support member and the spare support member in the fastening device provided by the utility model; Fig. 9 for Figure 8 A schematic diagram of the assembly structure of the working support member, the standby support member and the first connecting member is shown; Fig.10 A schematic diagram of the arrangement position of the spare support member in the fastening device provided by the utility model; Fig.11 for Fig.10 A schematic diagram of the broken portion structure of the spare support member is shown.

[0038] In this embodiment, the fastening device 1 includes a first connecting member 11, a second connecting member 12, a supporting member 13 and a fastening member 14;

[0039] The first connecting member 11 is provided with a mounting hole 111, the supporting member 13 is detachably connected to the mounting hole 111, and the middle of the supporting member 13 is provided with a connecting hole that can be matched with the fastener 14;

[0040] The second connecting member 12 is provided with an assembly hole for the fastener 14 to penetrate and limit. After the fastener 14 penetrates the assembly hole, it is fastened to the support member 13 to seal the first connecting member 11 and the second connecting member 12 .

[0041] Specifically, the fastening device 1 is preferably applied to a water storage barrel 2 of a washing machine. The water storage barrel 2 includes a front barrel and a rear barrel. The first connecting member 11 is located on one of the front barrel and the rear barrel, and the second connecting member 12 is located on the other. The fastener 14 is preferably a screw, more preferably a self-tapping screw. The inner diameter of the connection hole of the support member 13 should be smaller than the outer diameter of the self-tapping screw, so that the self-tapping screw can be tightened in the connection hole to achieve a firm sealing connection between the fastener 14 and the support member 13. Further, the end of the fastener 14 is provided with a step, and the end of the fastener 14 abuts against the end of the assembly hole; specifically, the connection between the support member 13 and the first connecting member 11 can be abutted by a step or by a limiting structure, and the structure that can achieve the limiting of the support member 13 and the first connecting member 11 is available, and the purpose is to ensure that the support member 13 can be gradually locked with the first connecting member 11 during the fastening process of the fastener 14. For example, a step portion 131 may be provided at one end of the support member 13, and the step portion 131 may abut against the end of the mounting hole 111 of the first connector 11, that is, the fastener 14 abuts against the second connector 12, and the support member 13 abuts against the first connector 11, and then the first connector 11 and the second connector 12 are tightened by the action force between the fastener 14 and the support member 13, so as to achieve a sealing effect between the first connector 11 and the second connector 12; when the fastening device 1 is applied to the water storage barrel 2 of the washing machine, a good sealing effect between the front barrel and the rear barrel of the water storage barrel 2 can be ensured. Of course, regarding the connection between the fastener 14 and the second connector 12, a gasket may also be provided, that is, a gasket is provided between the fastener 14 and the second connector 12 to ensure that the connection between the fastener 14 and the second connector 12 is more stable and reliable.

[0042] The fastening device 1 provided by the utility model realizes the fastening purpose of the first connecting member 11 and the second connecting member 12 by the fastening member 14 through the setting of the support member 13 and the use of the support member 13 as a transition member. Due to the setting of the support member 13, when the fastener 14 is disassembled and assembled multiple times, if the sealing effect between the support member 13 and the fastener 14 deteriorates, a new support member 13 can be replaced, thereby ensuring the sealing effect between the first connecting member 11 and the second connecting member 12 and improving reliability.

[0043] In some embodiments, a step portion 131 is provided at one end of the support member 13 away from the fastener 14; the step portion 131 can be snap-fitted with the end of the mounting hole 111 of the first connector 11, or a step surface 113 is provided at one end of the mounting hole 111 away from the second connector 12, and the step portion 131 contacts and positions the step surface 113. Specifically, one end of the mounting hole 111 of the first connector 11, that is, the end away from the second connector 12, is provided as a countersunk hole, which cooperates with the step portion 131 of the support member 13 through the countersunk hole, which facilitates positioning on the one hand, and improves the sealing effect between the support member 13 and the mounting hole 111 on the other hand.

[0044] In some embodiments, a guide post 121 is provided on one side of the second connector 12 close to the first connector 11, and a guide hole 134 is provided on one side of the support member 13 close to the second connector 12, and the guide post 121 is connected in cooperation with the guide hole 134. Specifically, by providing the guide post 121 and the guide hole 134, the positions of the second connector 12 and the support member 13 can be quickly positioned to improve the installation efficiency. Of course, the sizes of the guide post 121 and the guide hole 134 should be set according to the size of the fastener 14 to avoid interference with the positions of the fastener 14 and the connection holes on the support member 13.

[0045] In some embodiments, the sides of the guide column 121 and the guide hole 134 that are close to each other are both inclined surfaces, and the diameter of the guide hole 134 gradually increases in the direction close to the guide column 121. Specifically, the inclined surfaces of the guide column 121 and the guide hole 134 are inclined from the side close to the first connecting member 11 to the side close to the second connecting member 12 in the direction away from the fastener 14. Specifically, the inclination of the inclined surface is the maximum inclination that does not affect the inner diameter of the connecting hole of the support member 13. The connection between the guide column 121 and the guide hole 134 can ensure that the guide column 121 is inserted into the guide hole 134 more quickly through the inclined surface structure setting. Preferably, the surfaces that match the guide column 121 and the guide hole 134 are both conical surfaces, which are easy to process, accurate in positioning, and convenient to install.

[0046] In some embodiments, a buckle 132 is provided at one end of the support member 13 close to the second connecting member 12, and an anti-slip groove 112 is provided on the first connecting member 11. The anti-slip groove 112 is connected to the mounting hole 111, and the buckle 132 can be snapped into the anti-slip groove 112 after passing through the mounting hole 111. Specifically, by setting a buckle 132 at the end of the support member 13 and setting an anti-slip groove 112 on the first connecting member 11, when the first connecting member 11 and the second connecting member 12 need to be fixed, the support member 13 is first installed in the mounting hole 111 of the first connecting member 11, until the buckle 132 of the support member 13 is installed in the anti-slip groove 112 located at one end of the mounting hole 111. At this time, the support member 13 can be fixed in the mounting hole 111 and is not easy to fall off, which facilitates further cooperation with the fastener 14. When the support member 13 fails, the support member 13 can be pulled out of the mounting hole 111 by force, or the buckle 132 can be pressed from the anti-slip groove 112 into the mounting hole 111 through other tools to replace the new support member 13.

[0047] In some embodiments, the support member 13 includes a working support member 135 and a spare support member 136, and the spare support member 136 is detachably mounted on the working support member 135. Specifically, the working support member 135 refers to the support member 13 that is connected to the fastener 14, and the spare support member 136 refers to the support member 13 that is not connected to the fastener 14. When the working support member 135 fails, the spare support member 136 is used as the working support member 135; by detachably mounting the spare support member 136 on the working support member 135, when the working support member 135 needs to be replaced, it is not necessary to purchase it from the manufacturer, and the spare support member 136 can be directly used. The fastener 14 can be frequently disassembled and assembled in a timely manner, which can also meet the user's use needs and ensure reliability.

[0048] Preferably, in order to facilitate the cooperation between the spare support member 136 and the fastener 14 and facilitate processing, the working support member 135 and the spare support member 136 have the same structure.

[0049] In some embodiments, the front ends of the working support member 135 and the spare support member 136 are both provided with buckles 132, and the rear ends are both provided with slots 133, and the buckles 132 of the spare support member 136 can be detachably engaged with the slots 133 of the working support member 135. Specifically, by providing the buckles 132 and the slots 133, on the one hand, the buckles 132 can be used in conjunction with the anti-slip groove 112, and on the other hand, it can also facilitate the use of the spare support member 136. Similarly, when it is necessary to separate the working support member 135 from the spare support member 136, the spare support member 136 can be pulled out of the slots 133 of the working support member 135 by force, or the buckles 132 of the spare support member 136 can be pressed down from the slots 133 of the working support member 135 by other tools.

[0050] In some embodiments, the number of spare support members 136 is at least two, and the buckle 132 of one spare support member 136 can be detachably connected to the slot 133 of another spare support member 136. By providing multiple spare support members 136 and stacking them end to end for assembly, the reserved function is achieved, and the reserved number can be determined according to actual needs.

[0051] In some embodiments, the head of the support member 13 is provided with a buckle 132 for positioning, and the tail is designed with a step portion 131 to prevent the support member 13 from moving in the mounting hole 111 of the first connection. The mounting hole 111 of the first connection member 11 is provided with a step surface 113, and the step portion 131 of the support member 13 and the step surface 113 in the mounting hole 111 of the first connection member 11 are in contact and squeezed with each other to play a sealing role. This design facilitates the replacement of spare parts. When the support member 13 is damaged such as slipping, the parts can be replaced conveniently to restore the sealing function of the front barrel and the rear barrel. A cylindrical structure is extended on the side of the step portion 131 of the support member 13 away from the buckle 132, and a card slot 133 is provided on the cylindrical structure to facilitate the stacking of multiple support members 13.

[0052] In some embodiments, at least one anti-rotation portion 138 is provided in the circumference of the support member 13, and a limiting portion cooperating with the anti-rotation portion 138 is provided in the mounting hole 111 of the first connecting member 11, and the anti-rotation portion 138 and the limiting portion. Preferably, at least one anti-rotation plane is provided in the circumference of the support member 13, and a limiting plane cooperating with the anti-rotation plane is provided in the mounting hole 111 of the first connecting member 11, so as to prevent the support member 13 from rotating in the mounting hole 111 of the first connecting member 11, and the number of the anti-rotation plane and the limiting plane can also be 2 or more. Of course, any other setting that can prevent the support member 13 from rotating can achieve this purpose, such as a tooth structure.

[0053] In some embodiments, the spare support member 136 is integrally formed on the first connecting member 11 and / or the second connecting member 12. Specifically, the spare support member 136 can also be integrally formed on the first connecting member 11 and / or the second connecting member 12, and a breaking portion 137, such as a V-shaped groove, is provided between the spare support member 136 and the first connecting member 11 and / or the second connecting member 12. When the working support member 135 needs to be replaced, the breaking portion 137 is bent, and the spare support member 136 can be removed for use. When the spare support member 136 is made in the above manner, only the buckle 132 can be provided on the spare support member 136 and the working support member 135 to meet the cooperation with the anti-slip groove 112, and there is no need to provide the clamping groove 133. Of course, the spare support member 136 can also be provided in plurality, at least one spare support member 136 is connected to the working support member 135 by means of the buckle 132 and the clamping groove 133, and at least one spare support member 136 is integrally formed on the first connecting member 11 and / or the second connecting member 12. The location and number of the spare support members 136 can be adjusted according to actual needs and are not limited to the method given in this embodiment.

[0054] Specifically, in a specific embodiment, the fastening device 1 is suitable for fastening the front barrel and the rear barrel of the water storage barrel 2 in the washing machine. This structure is conducive to the disassembly, maintenance and cleaning of the front barrel and the rear barrel by the user in the later stage, avoiding the phenomenon of slipping teeth and the entire water storage barrel 2 leaking and being scrapped due to frequent disassembly of the front barrel and the rear barrel, thereby reducing user losses. The fastening device 1 includes a first connecting member 11, a second connecting member 12, a fastener 14 and a support member 13, the fastener 14 is a self-tapping screw, the first connecting member 11 is a connecting ear of the front barrel, the second connecting member 12 is a connecting ear of the rear barrel, and the front barrel and the rear barrel of the water storage barrel 2 are connected and fastened by the fastener 14 and the support member 13 that surround the periphery of the water storage barrel 2.

[0055] The fastening device 1 is preferably applied to the water storage barrel 2 of the drum washing machine, which is convenient for later maintenance. The detachable support member 13 is used. The accessories of the support member 13 are easy to assemble, and accessories can be randomly reserved for users, which is convenient for users to disassemble and clean the water storage barrel 2. Of course, the fastening device 1 can also be applied to the connection and fastening of other structures, and is preferably applied in the scene where sealing is required and self-tapping screws are used for connection.

[0056] In addition to the above-mentioned fastening device 1, the present invention further provides a washing machine including the above-mentioned fastening device 1. For the structures of other parts of the washing machine, please refer to the prior art and will not be described in detail herein.

[0057] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0058] The above is a detailed introduction to the fastening device provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A fastening device, characterized in that: It comprises a first connecting member (11), a second connecting member (12), a supporting member (13) and a fastening member (14); The first connecting member (11) is provided with a mounting hole (111), the supporting member (13) is detachably connected to the mounting hole (111), and a connecting hole is provided in the middle of the supporting member (13) for matching and connecting with the fastener (14); The second connecting member (12) is provided with an assembly hole for the fastener (14) to penetrate and limit the position. After the fastener (14) penetrates the assembly hole, it is fastened to the support member (13) to seal the first connecting member (11) and the second connecting member (12).

2. The fastening device according to claim 1, characterized in that: A step portion (131) is provided at one end of the support member (13) facing away from the fastener (14); the step portion (131) can be snap-fitted with the end of the mounting hole (111) of the first connecting member (11); or, a step surface (113) is provided at one end of the mounting hole (111) facing away from the second connecting member (12), and the step portion (131) contacts and positions the step surface (113).

3. The fastening device according to claim 1, characterized in that: A guide column (121) is provided on a side of the second connecting member (12) close to the first connecting member (11), a guide hole (134) is provided on a side of the supporting member (13) close to the second connecting member (12), and the guide column (121) is connected in a cooperative manner with the guide hole (134).

4. The fastening device according to claim 3, characterized in that: The sides of the guide column (121) that are close to the guide hole (134) are both inclined surfaces, and the diameter of the guide hole (134) gradually increases in a direction close to the guide column (121).

5. The fastening device according to any one of claims 1 to 4, characterized in that: A buckle (132) is provided at one end of the support member (13) close to the second connecting member (12); an anti-slip groove (112) is provided on the first connecting member (11); the anti-slip groove (112) is communicated with the mounting hole (111); and the buckle (132) can be engaged with the anti-slip groove (112) after passing through the mounting hole (111).

6. The fastening device according to claim 5, characterized in that: The support member (13) comprises a working support member (135) and a spare support member (136), and the spare support member (136) is detachably mounted on the working support member (135).

7. The fastening device according to claim 6, characterized in that: The front ends of the working support member (135) and the spare support member (136) are both provided with buckles (132), and the rear ends are both provided with clamping grooves (133); the buckles (132) of the spare support member (136) can be detachably clamped with the clamping grooves (133) of the working support member (135).

8. The fastening device according to any one of claims 1 to 4, characterized in that: At least one anti-rotation portion (138) is provided in the circumferential direction of the support member (13), and a limiting portion cooperating with the anti-rotation portion (138) is provided in the mounting hole (111) of the first connecting member (11).

9. The fastening device according to claim 6, characterized in that: The spare support member (136) is integrally formed on the first connecting member (11) and / or the second connecting member (12).

10. A washing machine, comprising a water storage tub (2) and a fastening device (1) for fastening a front tub and a rear tub of the water storage tub (2), characterized in that: The fastening device (1) is the fastening device according to any one of claims 1 to 9.

Images