Plug assembly, airing rod and clothes airing machine

Abstract

The utility model relates to a plug assembly, an airing rod and a clothes airing machine. The plug assembly comprises a plug, the plug is provided with at least two elastic supporting pieces arranged at intervals in the circumferential direction, each elastic supporting piece is provided with a clamping groove, each clamping groove comprises an inner wall and a thrust face connected to the bottom end of the inner wall, and the clamping grooves define a containing cavity; the expansion block is arranged in the accommodating cavity, the bottom end of the expansion block corresponds to the thrust surface, and the expansion part of the expansion block corresponds to the inner wall; and the jacking and pressing piece penetrates through one end of the plug to push the expansion block to the thrust surface, and the jacking and pressing piece is used for extruding the expansion block to enable the expansion part to expand in the radial direction to abut against the inner wall, so that the elastic supporting piece is pushed to be opened outwards. The plug assembly and the airing rod thereof have the advantages of being easy to install and simple in structure.

Description

Technical Field

[0001] The utility model relates to the field of drying rod accessories, in particular to a plug component, a drying rod and a clothes dryer. Background Art

[0002] The drying rod is usually a hollow tube body, and a plug needs to be inserted into its end. The current plug is in interference fit with the inside of the drying rod through the reinforcing ribs with inclined surfaces arranged on the outer wall. However, this installation method is time-consuming and laborious, and the problem of the reinforcing ribs scraping the glue is likely to occur during the plugging process, which is likely to damage the plug. In addition, there are gaps between other positions of the plug except the reinforcing ribs and the inside of the drying rod, and the fit is not tight enough. It is necessary to use a dotting machine to reinforce the plug twice. However, during actual operation, it is very difficult for the dotting machine to align with the reinforcing ribs, so that the dotting machine needs to make very deep dots to ensure that the plug does not come loose. However, too deep dotting is likely to penetrate the wall of the drying rod and damage the drying rod. Summary of the Utility Model

[0003] Based on this, the purpose of the utility model is to provide a plug component, a drying rod and a clothes dryer, which have the advantages of easy installation and simple structure.

[0004] A plug component includes:

[0005] A plug, on which at least two elastic support members are arranged at intervals along the circumferential direction. The elastic support member is provided with a clamping groove, and the clamping groove includes an inner wall and a thrust surface connected to the bottom end of the inner wall. The clamping groove surrounds and forms a receiving cavity;

[0006] An expansion block is arranged in the receiving cavity, its bottom end corresponds to the thrust surface, and its expansion part corresponds to the inner wall;

[0007] A pressing member penetrates one end of the plug to push the expansion block towards the thrust surface. The pressing member is used to squeeze the expansion block so that the expansion part expands radially and abuts against the inner wall, thereby pushing the elastic support member to expand outwards.

[0008] The plug component of the utility model realizes the tight fit between the plug and the rod body through extrusion expansion, eliminates the need for secondary reinforcement by using a dotting machine, reduces the production process, and lowers the production cost. At the same time, on the premise of ensuring non-loosening clamping, this structure is convenient for disassembly and installation, avoids scratching and damage of the plug during the plugging process, and improves the product quality.

[0009] Further, the expansion part is several support bars distributed at intervals in the circumferential direction. The expansion block further includes a first abutting seat and a second abutting seat respectively arranged at both ends of the support bar, and the first abutting seat abuts against the pressing member. This structure realizes the tightening of the plug through expansion deformation, avoids the problem of easy wear of the traditional inclined plane sliding fit structure, and can avoid the problem of difficult removal caused by the falling of the expansion block into the inner cavity of the rod body, greatly improving the operation convenience.

[0010] Further, the elastic support member includes a support piece and a reinforcing rib arranged on the inner side surface of the support piece, and the clamping groove is formed on the reinforcing rib. This structure can improve the supporting force of the expansion block on the elastic support piece and ensure the tight fit between the plug and the rod body.

[0011] Further, the reinforcing rib includes an abutting portion and a supporting portion connecting the abutting portion and the support piece. There are two supporting portions symmetrically arranged on both sides of the abutting portion, so as to enclose a deformation cavity with the abutting portion and the support piece. This structure makes the elastic support piece closely fit with the inner side wall of the rod body and ensures the tight fit between the plug and the rod body.

[0012] Further, a sliding groove is also formed in the reinforcing rib. The sliding groove encloses a sliding cavity coaxial with the accommodating cavity. The sliding cavity has a tapered structure narrowing from the outside to the inside. Its large end passes through the bottom of the plug, and its small end communicates with the accommodating cavity. The size of the large end is larger than that of the first abutting seat, and the size of the small end is smaller than that of the second abutting seat. This structure facilitates the disassembly and assembly of the expansion block, and at the same time ensures that the expansion block is clamped in the accommodating cavity to avoid the expansion block falling into the rod body when the plug is removed from the rod body.

[0013] Further, a convex ring extending in the circumferential direction is arranged on the outer side surface of the support piece. There are multiple convex rings distributed at intervals along the axial direction. The convex ring is provided with a sliding surface and an abutting surface. The sliding surface slopes downward along the insertion direction of the plug, and the inclination direction of the abutting surface is opposite to that of the sliding surface, and the inclination angle is greater than that of the sliding surface. The sliding surface and the abutting surface are connected at the highest side. This structure can realize the anti - detachment of the plug and ensure its stable tightening in the rod body.

[0014] Further, the plug further includes a connecting seat. The elastic support member is arranged at one end of the connecting seat. A guiding hole is formed in the connecting seat, and the pressing member passes through the guiding hole. This structure can limit the tightening depth of the plug and facilitate disassembly and assembly.

[0015] Further, the pressing member is a self - tapping screw, and a thread matching with the self - tapping screw is formed in the guiding hole. Its structure is simple and easy to operate.

[0016] Further, a fastening boss is provided in the connecting seat, and the guiding hole is formed in the fastening boss. The fastening boss can increase the length of the screw connection between the self-tapping screw and the plug, and improve the self-locking ability.

[0017] A drying rod includes a rod body and the plug assembly as described above. The rod body is provided with a hollow inner cavity. The elastic support members of the plug are inserted into the hollow inner cavity. The outer side surface of the elastic support member abuts against the inner side wall of the rod body, and the connecting seat abuts against the end of the rod body. This drying rod has a simple structure, is convenient for disassembling and assembling the plug, reduces the production cost of the product, and improves the product quality.

[0018] A drying machine includes the drying rod as described above.

[0019] For better understanding and implementation, the present utility model will be described in detail below with reference to the accompanying drawings. Description of the Drawings

[0020] Figure 1 It is a structural diagram of the drying rod of the present utility model;

[0021] Figure 2 It is a front axial view of the plug assembly of the present utility model;

[0022] Figure 3 It is a rear axial view of the plug assembly of the present utility model;

[0023] Figure 4 It is a rear view of the plug assembly of the present utility model;

[0024] Figure 5 It is Figure 4 a cross-sectional view taken along the AA direction in

[0025] Figure 6 It is Figure 5 a partial enlarged view of the A area in

[0026] Figure 7 a cross-sectional view of the plug;

[0027] Figure 8 a structural diagram of the expansion block;

[0028] Description of the reference numerals: 1. Rod body; 2. Plug; 21. Connecting seat; 211. Fastening boss; 212. Guiding hole; 22. Elastic support member; 221. Support piece; 222. Reinforcing rib; 2221. Contact portion; 2222. Support portion; 2223. Clamping groove; 2224. Sliding groove; 223. Convex ring; 2231. Sliding surface; 2232. Contact surface; 3. Expansion block; 31. Expansion portion; 32. First contact seat; 33. Second contact seat; 4. Pressing member. Detailed Description of the Embodiments

[0029] See also Figure 1 , Figure 1 The utility model discloses a clothes drying machine, which includes a clothes drying rod. The clothes drying rod includes a rod body 1 and a plug assembly. A hollow inner cavity is provided in the middle of the rod body 1 to form a hollow tubular structure. The plug assembly is inserted at the end of the rod body 1. In this embodiment, the rod body 1 is a hollow round tube. In practice, the cross section of the rod body 1 can also be designed into other shapes according to the usage scenario.

[0030] See also Figure 2-7 , Figure 2 This is an axial view of the plug assembly of the utility model; Figure 3 This is a rear axle view of the plug assembly of the utility model; Figure 4 It is a rear view of the plug assembly of the utility model; Figure 5 for Figure 4 The cross-sectional view along the AA direction; Figure 6 for Figure 5 A partial enlarged view of the middle A area; Figure 7 : is a cross-sectional view of the plug. The plug assembly includes a plug 2, an expansion block 3 and a top pressure piece 4. The expansion block 3 is arranged in the plug 2, and the top pressure piece 4 is used to squeeze the expansion block 3. When the top pressure piece 4 slides, it pushes the expansion block 3 to expand and deform in the radial direction, thereby expanding the plug 2.

[0031] The plug 2 includes a connection seat 21 abutting against the end of the rod body 1, and an elastic support member 22 inserted into the rod body 1 and pressed against the inner wall of the rod body 1. A fastening boss 211 is provided at one end of the connection seat 21, and a guide hole 212 is provided in the fastening boss 211 along the axial direction, and the pressing member 4 is passed through the guide hole 212. At least two elastic support members 22 are provided at intervals along the circumferential direction at the other end of the connection seat 21, and the number of the elastic support members 22 can be designed according to the actual situation such as the cross-sectional shape of the rod body 1. In this embodiment, there are four elastic support members 22 and they are distributed in a cross shape.

[0032] The elastic support member 22 includes a support piece 221 and a reinforcing rib 222 arranged on the inner side of the support piece 221. The shape of the support piece 221 is adapted to the hollow inner cavity of the rod body 1. In this embodiment, the rod body 1 is a circular tube, and the shape of the support piece 221 is in the shape of an arc. The outer side of the support piece 221 is provided with a convex ring 223 extending in the circumferential direction. There are multiple convex rings 223 and they are distributed at intervals along the axial direction. The convex ring 223 is provided with a sliding surface 2231 and an abutting surface 2232. The sliding surface 2231 is inclined downward along the insertion direction of the plug 2. The abutting surface 2232 is inclined in the opposite direction to the sliding surface 2231, and the inclination angle is greater than the inclination angle of the sliding surface 2231. The sliding surface 2231 and the abutting surface 2232 are connected at the highest side.

[0033] When in use, when the expansion block 3 expands the elastic support sheet 221 and makes it press against the inner wall of the rod body 1, the abutment surface 2232 presses against the inner wall of the rod body 1, further improving the stability of the plug 2 after installation and preventing it from falling off. A groove that matches the convex ring 223 can also be provided on the inner wall of the rod body 1, so as to achieve the clamping of the plug 2.

[0034] The reinforcing rib 222 includes an abutting portion 2221 and a supporting portion 2222 connecting the abutting portion 2221 and the supporting piece 221. The supporting portions 2222 have two portions and are symmetrically arranged on both sides of the abutting portion 2221, thereby forming a deformation cavity together with the abutting portion 2221 and the supporting piece 221. A snap-fit ​​groove 2223 is provided on the abutting portion 2221. The snap-fit ​​grooves 2223 of all elastic supporting members 22 face the central axis, thereby forming a accommodating cavity. The snap-fit ​​groove 2223 includes an inner wall and a thrust surface connected to the bottom end of the inner wall.

[0035] The reinforcing rib 222 is also provided with a slide groove 2224, and the slide groove 2224 surrounds and forms a sliding cavity coaxial with the accommodating cavity. The sliding cavity is a conical structure that narrows from the outside to the inside, and its large end passes through the bottom of the plug 2, and its small end is connected to the accommodating cavity.

[0036] See also Figure 8 , Figure 8 It is a structural diagram of the expansion block. The expansion block 3 can have a variety of structural forms. In the present embodiment, the expansion block 3 includes an expansion portion 31, a first abutment seat 32 and a second abutment seat 33. The expansion portion 31 is a plurality of stays spaced apart along the circumferential direction, corresponding to the inner wall of the clamping groove 2223. The first abutment seat 32 and the second abutment seat 33 are respectively arranged at both ends of the stay, wherein the first abutment seat 32 corresponds to the connecting seat 21, and the second abutment seat 33 corresponds to the thrust surface. The size of the large end is larger than that of the first abutment seat 32, and the size of the small end is smaller than that of the second abutment seat 33.

[0037] During installation, the expansion block 3 needs to be inserted into the accommodating cavity first, specifically, after the first abutting seat 32 is aligned with the large end, the expansion block 3 is inserted into the accommodating cavity with force. During this process, the elastic support piece 221 is turned outward to allow the second abutting seat 33 to pass through the small end and then be inserted into the accommodating cavity. The first abutting seat 32 and the second abutting seat 33 can have the same structure and size.

[0038] The pressing member 4 can be a rod body 1 with a barb structure that can realize axial movement and can be tightly fixed with the plug 2. In the present embodiment, it is a self-tapping screw, and the guide hole 212 is provided with a thread that cooperates with the self-tapping screw.

[0039] When in use, first insert the expansion block into the accommodating cavity, then insert the plug into the inner cavity of the rod body, so that the elastic support piece corresponds to the inner wall. Then screw in the self-tapping screw. During the screwing process, the self-tapping screw penetrates the bottom of the plug 2 and abuts against the first abutment seat of the expansion block, pushing the expansion block 3 toward the thrust surface. When the first abutment seat 32 abuts against the thrust surface, the self-tapping screw continues to be screwed in, pushing the first abutment seat to move in the direction of the second abutment seat. Since the second abutment seat is pressed and cannot be detached through the sliding cavity, the support bar is squeezed and bent outward to achieve expansion deformation. When the support bar bends outward, it moves toward the abutment portion and abuts against the inner wall. When the self-tapping screw continues to be screwed in, the support bar continues to deform and pushes the elastic support piece to flip outward until it abuts against the inner wall of the rod body, so that the plug can be tightly plugged into the rod body. When the self-tapping screw is unscrewed, the support bar is restored to make the first abutment seat away from the second abutment seat, and the elastic support piece is turned inside out and restored to be separated from the inner wall of the rod body, so that the plug can be easily taken out of the rod body.

[0040] The plug assembly, clothes drying rod and clothes drying machine described in the utility model realize the close fit between the plug and the rod body through extrusion and expansion, and do not need to use a dotting machine for secondary reinforcement, thus reducing the production process and reducing the production cost. At the same time, while ensuring that the clamping is not loose, the structure is easy to disassemble and install, avoiding scratches and damage to the plug during the insertion process, and improving product quality.

[0041] In the description of the present application, it should be understood that if the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0042] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In this application, unless otherwise clearly defined and limited, if terms such as "installed", "connected", "linked", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] The above-described embodiments merely represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and the present utility model also intends to include these modifications and improvements.

Claims

1. A plug assembly, characterized in that: include: The plug is provided with at least two elastic support members spaced apart along the circumferential direction, the elastic support member is provided with a clamping groove, the clamping groove comprises an inner wall and a thrust surface connected to the bottom end of the inner wall, and the clamping groove surrounds and forms an accommodating cavity; An expansion block, the expansion block is arranged in the accommodating cavity, the bottom end of the expansion block corresponds to the thrust surface, and the expansion portion of the expansion block corresponds to the inner wall; A pressing piece, wherein one end of the pressing piece penetrates into the plug to push the expansion block toward the thrust surface, and the pressing piece is used to squeeze the expansion block so that the expansion portion expands radially and abuts against the inner wall, thereby pushing the elastic support piece to expand outward.

2. A plug assembly according to claim 1, characterized in that: The expansion portion is a plurality of stays spaced apart along the circumferential direction, and the expansion block further comprises a first abutment seat and a second abutment seat respectively arranged at two ends of the stay, and the first abutment seat abuts against the pressing member.

3. A plug assembly according to claim 2, characterized in that: The elastic support member includes a support sheet and a reinforcing rib arranged on the inner side of the support sheet, and the clamping groove is formed on the reinforcing rib.

4. A plug assembly according to claim 3, characterized in that: The reinforcing rib includes an abutting portion and a supporting portion connecting the abutting portion and the supporting piece. The supporting portions are two and symmetrically arranged on both sides of the abutting portion, thereby forming a deformation cavity together with the abutting portion and the supporting piece.

5. A plug assembly according to claim 4, characterized in that: The reinforcing rib is also provided with a slide groove, which surrounds a sliding cavity coaxial with the accommodating cavity. The sliding cavity is a conical structure that narrows from the outside to the inside, with its large end passing through the bottom of the plug and its small end connected to the accommodating cavity. The size of the large end is larger than the first abutment seat, and the size of the small end is smaller than the second abutment seat.

6. A plug assembly according to claim 3, characterized in that: The outer side surface of the support piece is provided with a convex ring extending in the circumferential direction, and the convex ring is multiple and distributed in the axial direction at intervals. The convex ring is provided with a sliding surface and a butt surface. The sliding surface is inclined downward along the insertion direction of the plug, and the inclination direction of the butt surface is opposite to that of the sliding surface, and the inclination angle is greater than the inclination angle of the sliding surface. The sliding surface and the butt surface are connected at the highest side.

7. A plug assembly according to claim 1, characterized in that: The plug also includes a connecting seat, the elastic support member is arranged at one end of the connecting seat, a guide hole is opened in the connecting seat, and the pressing member is inserted into the guide hole.

8. A plug assembly according to claim 7, characterized in that: The pressing piece is a self-tapping screw, and a thread matching with the self-tapping screw is provided in the guide hole.

9. A plug assembly according to claim 8, characterized in that: A fastening boss is arranged in the connection seat, and the guide hole is opened in the fastening boss.

10. A clothes drying rod, characterized in that: It includes a rod body and a plug assembly as described in any one of claims 1 to 9, wherein the rod body is provided with a hollow inner cavity, the elastic support members of the plug are inserted into the hollow inner cavity, the outer side surfaces of the elastic support members abut against the inner side walls of the rod body, and the connecting seat abuts against the end of the rod body.

11. A clothes drying machine, characterized in that: Comprising the clothes drying rod as described in claim 10.

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