Plastic three-way connecting piece
By using the clamps and protrusions of the plastic tee connectors, along with the design of long grooves and wedge blocks, the problem of loose mosquito net frame rods was solved, achieving stable positioning of the rods and improving structural strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG HENGDAFEI METAL TECHNOLOGY CO LTD
- Filing Date
- 2024-01-09
- Publication Date
- 2026-05-05
AI Technical Summary
The connecting rods and connectors in the existing mosquito net frame are prone to loosening, leading to detachment, and the limiting effect is poor. In addition, the compatibility between the connecting rods and the connecting tube is not good.
The plastic tee connector uses a clamp and a protrusion to form a ring-shaped buckle structure. Combined with the design of long grooves and wedge blocks, it enhances the limiting effect of the connecting rod and uses the elasticity of plastic material to expand the inner diameter to accommodate connecting rods of different thicknesses.
This design achieves stable limiting of the connecting rods, enhances the fastening effect of the connection, ensures the structural strength and stability of the mosquito net frame, and prevents it from loosening and falling off.
Smart Images
Figure CN224200928U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of household goods technology, specifically to a plastic tee connector. Background Technology
[0002] A mosquito net is a screen used to prevent mosquito bites. It is usually hung on a support frame to surround the bed and keep mosquitoes out. It has gradually become a necessity in people's lives. As people's quality of life continues to improve, their requirements for mosquito nets are no longer limited to just preventing mosquito bites. They also require them to be aesthetically pleasing, easy to install, and convenient to use.
[0003] To improve the convenience of mosquito nets during use, many manufacturers have launched installation-free folding mosquito nets, reducing the time spent assembling them and avoiding incorrect assembly of compatible components. However, during long-term use, the connecting rods and connectors in the mosquito net frame may loosen, causing them to detach. To address the problems in the existing technology, those skilled in the art have made numerous attempts. For example, Chinese patent application 2023205685743 discloses a folding mosquito net frame, specifically a three-way connection structure. This structure connects to the connecting rods through a combination of protrusions and grooves, or through elliptical or D-shaped surfaces, fixing the connecting rods in a non-rotational sleeve manner. However, this method has weak limitation on the horizontal displacement of the connecting rods and poor limiting effect. Utility Model Content
[0004] To address the aforementioned issues, this utility model provides a plastic tee connector that uses a clamp and a protrusion to connect the connecting cylinder and the connecting rod, thereby enhancing the limiting effect of the connecting cylinder on the connecting rod and strengthening the overall structural strength.
[0005] To achieve the above objectives, the present invention employs a plastic tee connector for connecting with a mosquito net rod to form a mosquito net frame, comprising a connecting tube; the connecting tube includes a horizontal connecting tube, a vertical connecting tube, and a longitudinal connecting tube; one end of the horizontal connecting tube, the longitudinal connecting tube, and the vertical connecting tube converges at a point; the horizontal connecting tube and the longitudinal connecting tube form an angle; a clamp is provided on the inner wall of the connecting tube; a protrusion is provided on the outer wall of the connecting rod; the clamp cooperates with the protrusion to achieve the connection between the connecting tube and the connecting rod.
[0006] Furthermore, there are two clamps arranged side by side on the side away from the junction point; a groove is formed between the two clamps; when the protrusion engages with the clamp, the protrusion is placed in the groove.
[0007] Furthermore, the connecting cylinder is provided with several long grooves along its circumferential direction; the long grooves extend downward from the upper end of the connecting cylinder to the clamp.
[0008] Furthermore, several wedge-shaped blocks are provided circumferentially on the inner wall at the bottom of the connecting cylinder to form a gradually shrinking space.
[0009] Furthermore, the included angle between the transverse connecting cylinder and the longitudinal connecting cylinder is 90°.
[0010] Furthermore, ribs are provided between the transverse connecting cylinder and the longitudinal connecting cylinder, between the transverse connecting cylinder and the vertical connecting cylinder, and between the longitudinal connecting cylinder and the vertical connecting cylinder.
[0011] The beneficial effects of the technical solution described in this utility model are as follows:
[0012] 1. The connecting cylinder and the connecting rod are connected by a clamp inside the connecting cylinder and a protrusion on the connecting rod, forming a ring buckle structure. This allows for convenient and quick positioning of the connecting rod and enhances the positioning effect.
[0013] 2. During the manufacturing of connecting rods, the thickness of the side connecting the connecting rod to the connecting cylinder is often increased due to the manufacturing process. This can lead to a mismatch between the outer diameter of the connecting rod and the inner diameter of the connecting cylinder when assembling them. In this case, a long groove on the side of the connecting cylinder furthest from the junction point divides the outer wall of the connecting cylinder into several sections. This allows the elasticity of the material to expand the inner diameter, enabling it to accommodate the increased outer diameter of the connecting rod and ensuring a proper connection. Simultaneously, a clamping force is applied to the connecting rod, further securing it.
[0014] 3. By setting several wedge-shaped blocks on one side of the connecting cylinder near the junction point, an inverted cone-shaped internal space with the top removed is formed. As the insertion depth of the connecting rod gradually increases when it is inserted into the connecting cylinder, the interference fit between the connecting rod and the connecting cylinder becomes stronger, resulting in a stronger fastening effect. This further ensures the strength of the connecting cylinder's limiting effect on the connecting rod during operation. Attached Figure Description
[0015] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the vertical connecting cylinder structure.
[0018] Figure 3 This is a sectional view of the vertical connecting cylinder.
[0019] Figure 4 This is a schematic diagram of the linkage structure.
[0020] Figure 5 This is a schematic diagram of the vertical connecting cylinder and connecting rod mating structure.
[0021] Figure 6 It is a sectional view of the structure of the vertical connecting cylinder and the connecting rod.
[0022] Figure 7 yes Figure 6 Enlarged view of section I in the middle.
[0023] Among them, 1-vertical connecting cylinder, 11-long groove, 12-clamp, 13-wedge block, 14-groove, 2-longitudinal connecting cylinder, 3-transverse connecting cylinder, 4-rib plate, 5-connecting rod, 51-protrusion. Detailed Implementation
[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings, but it is not limited thereto. Any modifications or equivalent substitutions to the technical solution of this utility model that do not depart from the spirit and scope of the technical solution of this utility model shall be covered within the protection scope of this utility model.
[0025] Example 1
[0026] like Figure 1 As shown, this utility model proposes a plastic three-way connector for connecting mosquito net rods 5 to form a mosquito net frame. It includes a connecting tube, comprising a horizontal connecting tube 3, a vertical connecting tube 2, and a vertical connecting tube 1. The horizontal connecting tube 3, the vertical connecting tube 2, and the vertical connecting tube 1 converge at a point on the lower outer surface of the vertical connecting tube 1, forming a three-way structure.
[0027] In this utility model, the internal structures of the vertical connecting cylinder 1, the horizontal connecting cylinder 3, and the longitudinal connecting cylinder 2 are the same; therefore, the vertical connecting cylinder 1 is used as an example in the illustrations of this embodiment. Figure 2-7 As shown, two annular clamps 12 are provided on the inner wall of the connecting cylinder, away from the junction point, forming a groove 14 between the two clamps 12. A protrusion 51 is provided on the outer wall of the connecting rod 5 on the side connected to the connecting cylinder, for engaging with the two clamps 12 to connect the connecting cylinder and the connecting rod 5. During connection, the connecting rod 5 is inserted into the connecting cylinder. When the protrusion 51 contacts the first clamp 12 on the outer side, under the elastic force of the plastic material, the protrusion 51 passes over the first clamp 12 and is positioned in the groove 14 between the two clamps 12, thus limiting the connection of the connecting rod 5 and achieving the connection between the connecting cylinder and the connecting rod 5.
[0028] Three through-type elongated slots 11 are provided on the side of the connecting cylinder away from the junction point. The slots 11 extend from the end face away from the junction point towards the junction point, reaching the first clamp 12 on the outer side. This is to prevent the slots 11 from affecting the clamp 12, thus affecting the connection between the connecting cylinder and the connecting rod 5. It should be noted that the number of slots 11 can be one, two, or four, and multiple slots 11 are arranged circumferentially. By providing the slots 11, the elastic properties of the plastic material can be used to enlarge the end diameter of the connecting cylinder, allowing the connecting cylinder to accommodate connecting rods 5 with larger outer diameters. Therefore, when the thickness of the connecting rod 5 or the protrusion 51 on the connecting rod 5 increases due to the manufacturing process, making it unable to fit the connecting cylinder, the elastic properties of the plastic material can be used to properly connect the connecting rod 5 and the connecting cylinder, ensuring its normal operation. Furthermore, the elastic force of the connecting cylinder can form a clamping effect on the connecting rod 5, further ensuring the overall structural strength.
[0029] A wedge-shaped block 13 is provided on one side of the connecting cylinder near the junction point. The number of wedge-shaped blocks 13 can be one or more, and the wedge-shaped blocks 13 are arranged circumferentially. By setting the wedge-shaped block 13, a top-less inverted conical space can be formed inside the connecting cylinder, so that when the connecting rod 5 is inserted into the connecting cylinder, an interference fit can be formed as the connecting rod 5 is inserted deeper, thereby further reinforcing the connecting rod 5.
[0030] Preferably, inside the connecting cylinder, starting from the second clamp located on the inner side, the height of the inner wall extending inward is the same as the height of the clamp, so as to prevent the connecting rod 5 from being subjected to force beyond the second clamp 12 located on the inner side, causing over-insertion.
[0031] Reinforcing ribs 4 are preferably provided between the transverse connecting cylinder 3 and the vertical connecting cylinder 1, between the transverse connecting cylinder 3 and the longitudinal connecting cylinder 2, and between the vertical connecting cylinder 1 and the longitudinal connecting cylinder 2, so as to strengthen the overall structure of the plastic tee connector.
[0032] Preferably, the transverse connecting tube 3 and the longitudinal connecting tube 2 form an angle in the XY plane. When the mosquito net frame, composed of the plastic tee connector and the connecting rod 5, is a cuboid structure, this angle is 90°. When the mosquito net frame structure needs to be changed to adapt to the requirements of the usage environment, the size of the angle can be adjusted as needed.
[0033] In another embodiment of this invention, the groove 14 on the inner wall of the connecting cylinder that mates with the protrusion 51 can also be formed by the outward recess of the inner wall of the connecting cylinder, in which case the clamp 12 is not required. When the connecting rod 5 is connected to the connecting cylinder, the connecting rod 5 is gradually inserted into the connecting cylinder. After a clicking sound is heard, it can be determined that the connecting rod 5 has reached the mating position, and the connecting rod is locked in place by the mating of the groove 14 and the protrusion 51.
[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A plastic tee connector for connecting with a mosquito net rod (5) to form a mosquito net frame, characterized in that, The system includes a connecting cylinder; the connecting cylinder includes a transverse connecting cylinder (3), a longitudinal connecting cylinder (2), and a vertical connecting cylinder (1) that converge at one end; the transverse connecting cylinder (3) and the longitudinal connecting cylinder (2) form an angle between them; the inner wall of the connecting cylinder is provided with a clamp (12) that matches the protrusion (51) provided on the outer wall of the connecting rod (5); the clamp (12) cooperates with the protrusion (51) to realize the connection between the connecting cylinder and the connecting rod (5).
2. The plastic tee connector according to claim 1, characterized in that, There are two clamps (12), which are arranged side by side on the side away from the junction point; a groove (14) is formed between the two clamps (12); when the protrusion (51) is engaged with the clamp (12), the protrusion (51) is placed in the groove (14).
3. The plastic tee connector according to claim 1, characterized in that, The connecting cylinder is provided with several long grooves (11) along its circumferential direction; the long grooves (11) extend downward from the upper end of the connecting cylinder to the clamp (12).
4. The plastic tee connector according to claim 1, characterized in that, The inner wall at the bottom of the connecting cylinder is provided with several wedge-shaped blocks (13) along the circumferential direction to form a gradually shrinking space.
5. The plastic tee connector according to claim 1, characterized in that, The angle between the transverse connecting cylinder (3) and the longitudinal connecting cylinder (2) is 90°.
6. The plastic tee connector according to claim 1, characterized in that, Ribs (4) are provided between the transverse connecting cylinder (3) and the longitudinal connecting cylinder (2), between the transverse connecting cylinder (3) and the vertical connecting cylinder (1), and between the longitudinal connecting cylinder (2) and the vertical connecting cylinder (1).