Expansion plug for clothes drying machine

Abstract

An expansion plug for a clothes drying rack includes a base body with a hole in the center. The base body is connected to an expansion body, which includes multiple contact pieces arranged in a ring around the axis of the hole. One end of each contact piece near the base body is fixedly connected to the base body. Each contact piece has a channel on the side near the axis of the hole. A screw is screwed into the hole from the side of the base body away from the contact piece. After the screw enters the channel, it pushes the contact piece to move radially outward. The outer diameter of the base body is larger than that of the expansion body. Both the expansion body and the base body are made of plastic.

Description

Technical Field

[0001] This utility model relates to an expansion plug for the drying rod on a clothes drying rack. Background Technology

[0002] In the existing technology, drying racks are usually made of metal tubing, so there are holes at both ends. For aesthetic and practical installation, plugs need to be installed at both ends. One type of existing plug structure is interference fit with the inside of the tubing, which is prone to loosening and detachment due to deformation over time; another type uses an expansion bolt structure, which has high manufacturing cost. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an expansion plug for the drying rod of a clothes drying rack, overcoming the shortcomings of the existing technology.

[0004] The technical solution adopted in this utility model is as follows: an expansion plug for a clothes drying rack, including a base body, a hole in the middle of the base body, an expansion body connected to the base body, and an expansion body including multiple contact pieces. The multiple contact pieces are arranged in a ring around the axis of the hole. One end of each contact piece near the base body is fixedly connected to the base body. Each contact piece has a channel on the side of the axis near the hole. A screw is screwed into the hole from the side of the base body away from the contact piece. After the screw enters the channel, it pushes the contact piece to move radially outward. The outer diameter of the base body is larger than the outer diameter of the expansion body. Both the expansion body and the base body are made of plastic.

[0005] The screw is a self-tapping screw.

[0006] The channel and the hole are coaxially arranged.

[0007] The outer diameter of the screw is larger than the radial dimension of the channel.

[0008] There are gaps between each of the contact pieces. During installation, the expansion body is inside the drying rod, and the base body is outside the drying rod.

[0009] The contact piece is plate-shaped, with the thickness being the smallest dimension, followed by the height, and the length being the largest dimension.

[0010] The contact piece comprises two plates, which are fixedly connected on one side of the axis near the hole in a V-shape. The thickness of the plates is the smallest, followed by the height, and the length is the largest.

[0011] The screw is threaded into a hole or into a channel.

[0012] The diameter of the channel is larger at the end closer to the base than at the end farther from the base.

[0013] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure, low manufacturing cost, and can form a tight installation fit with the drying rod, which is stable and reliable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 yes Figure 1 A structural diagram from another perspective.

[0016] Figure 3 yes Figure 2 A structural diagram from another perspective.

[0017] Figure 4 This is a structural diagram of the present invention and the installation of the drying rack. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] like Figures 1 to 4 As shown in this embodiment, the expansion plug for the clothes drying rack includes a base body 1. The base body 1 has a hole 10 in its center. The base body 1 is preferably a circular plate. The base body 1 is connected to an expansion body 2. The expansion body 2 includes multiple contact pieces 21 arranged in a ring around the axis a of the hole 10. The axis a of the hole 10 is the direction of its central axis. Preferably, the axis a of the cover is perpendicular to the surface of the base body 1 closest to the expansion body 2. One end of each contact piece 21 near the base body 1 is fixedly connected to the base body 1. Each contact piece 21 has a channel 4 on the side near the axis a of the hole 10. A screw 3 is screwed into the base body 1 from the hole 10 on the side opposite to the contact piece 21. After the screw 3 enters the channel 4, it pushes the contact piece 21 to move radially outward. The outer diameter of the base body 1 is larger than the outer diameter of the expansion body 2. In this embodiment, the diameter is the radial direction determined with the axis a of the hole 10 as the axial reference. The drying rod 5 is a hollow tube. The outer diameter of the expansion body 2 is smaller than that of the base body 1. When the expansion body 2 falls into the drying rod 5, the screw 3 is screwed in. The screw 3 pushes against the contact piece 21, causing the expansion body 2 to deform and expand, thus fixing it to the drying rod 5. This method has a simple structure and low manufacturing cost. Preferably, in this embodiment, the base body 1 and the expansion body 2 are made of plastic material.

[0020] In a preferred embodiment, the screw 3 is a self-tapping screw 3. This application preferably uses a self-tapping screw 3, which eliminates the need for tapping the hole or channel 4, thus reducing manufacturing costs.

[0021] In a preferred embodiment, the channel 4 is coaxially arranged with the hole 10. After the screw 3 enters from the hole 10, it can proceed directly to the channel 4.

[0022] In a preferred embodiment, the outer diameter of the screw 3 is larger than the radial dimension of the channel 4.

[0023] In a preferred embodiment, there is a gap 22 between each of the contact pieces 21. During installation, the expansion body 2 is inside the drying rod 5, and the base body 1 is outside the drying rod 5. In this embodiment, the gap 22 between each of the contact pieces 21 allows for greater plastic deformation, and the base body 1 being outside the drying rod 5 can cover the end face of the drying rod 5, resulting in an aesthetically pleasing appearance.

[0024] In a preferred embodiment, the contact piece 21 is plate-shaped, with the thickness being the smallest, followed by the height, and the length being the largest.

[0025] In a preferred embodiment, the contact piece 21 includes two plates, which are fixedly connected on one side of the axis a near the hole position 10 in a V-shape. The thickness of the plates is the smallest, followed by the height, and the length is the largest.

[0026] In a preferred embodiment, the screw 3 is threadedly connected to the hole 10 or to the channel 4.

[0027] In a preferred embodiment, the diameter of the channel 4 at the end closer to the base body 1 is larger than the diameter at the end farther from the base body 1.

Claims

1. An expansion plug for a drying rod of a clothes drying machine, characterized in that, The device includes a base body with a hole in the middle. The base body is connected to an expansion body, which includes multiple contact pieces arranged in a ring around the axis of the hole. One end of each contact piece near the base body is fixedly connected to the base body. Each contact piece has a channel on the side near the axis of the hole. A screw is screwed into the hole from the side of the base body away from the contact piece. After the screw enters the channel, it pushes the contact piece to move radially outward. The outer diameter of the base body is larger than that of the expansion body. Both the expansion body and the base body are made of plastic.

2. The expansion plug for the upper drying rod of a clothes drying machine according to claim 1, characterized in that, The screw is a self-tapping screw.

3. The expansion plug for the clothes drying rack rod as described in claim 1, characterized in that, The channel and the hole are coaxially arranged.

4. The expansion plug for the clothes drying rack rod as described in claim 1, characterized in that, The outer diameter of the screw is larger than the radial dimension of the channel.

5. The expansion plug for the clothes drying rack rod as described in claim 1, characterized in that, There are gaps between each of the contact pieces. During installation, the expansion body is inside the drying rod, and the base body is outside the drying rod.

6. The expansion plug for the clothes drying rack rod as described in claim 1, characterized in that, The contact piece is plate-shaped, with the thickness being the smallest dimension, followed by the height, and the length being the largest dimension.

7. The expansion plug for the clothes drying rack rod as described in claim 1, characterized in that, The contact piece includes two plates, which are fixedly connected on one side of the axis near the hole in a V-shape. The thickness of the plates is the smallest, followed by the height, and the length is the largest.

8. The expansion plug for the clothes drying rack rod as described in claim 1, characterized in that, The screw is threaded into the hole or into the channel.

9. The expansion plug for the clothes drying rack rod as described in claim 1, characterized in that, The diameter of the channel is larger at the end closer to the base than at the end farther from the base.

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