Wall hanging structure

Abstract

The utility model belongs to the technical field of hanging walls for electronic equipment, and particularly relates to a hanging wall structure. The wall hanging structure comprises a plastic part and a step screw, an opening is formed in the plastic part, the top of the opening is open, the bottom of the opening is closed, the step screw comprises a threaded section, a step section and a top section which are sequentially connected in the axial direction of the step screw, the cross sectional areas of the threaded section, the step section and the top section are sequentially increased, and a step surface is formed at the joint of the step section and the threaded section. The step surface is a plane and is perpendicular to the axis of the step screw; the cross sectional area of the threaded section is larger than that of the open hole, the threaded section is in interference connection in the open hole, the depth of the open hole is larger than the length of the threaded section, and the plastic part is provided with a contact plane making contact with the step face. The plastic part and the step screw are in direct interference connection, the forming period is prevented from being prolonged due to the fact that the plastic part needs to be formed with a nut of a metal part in a sleeved mode when a nut is used for transition connection, the forming period of the plastic part is shortened, and production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wall-mounted electronic equipment, and in particular relates to a wall-mounted structure. Background Art

[0002] The wall-mounted structure on an electronic device generally involves putting a nut on the plastic housing of the electronic device. The machine screw portion is threadedly connected to the nut, and the remaining portion is located outside the plastic housing for mounting a wall-mounted bracket.

[0003] The aforementioned wall-mounted structure requires first placing the nut in a mold of the plastic housing for a bead-forming process, and then attaching the machine screw to the nut. This bead-forming process of the metal nut and the plastic housing results in a longer molding cycle and lower production efficiency. Summary of the Invention

[0004] The technical problem to be solved by the utility model is: to provide a wall hanging structure in view of the problem of low production efficiency of the existing wall hanging structure.

[0005] To solve the above technical problems, an embodiment of the present invention provides a wall-hanging structure, comprising a plastic part and a step screw, wherein the plastic part is provided with an opening, the top of the opening being open and the bottom being closed, the step screw comprising a threaded section, a step, and a head section sequentially connected along its axial direction, the cross-sectional areas of the threaded section, the step, and the head section increasing in sequence, and a step surface formed at the junction of the step and the threaded section, the step surface being flat and perpendicular to the axis of the step screw;

[0006] The cross-sectional area of ​​the threaded segment is larger than the cross-sectional area of ​​the opening, the threaded segment is interference-connected in the opening, the depth of the opening is larger than the length of the threaded segment, and the plastic part has a contact plane in contact with the step surface.

[0007] Optionally, the stage is cylindrical, the outer diameter of the stage is D1, the outer diameter of the threaded section is D2, and D1-D2≥1mm.

[0008] Optionally, the length of the thread segment is L, and L is ≥ 10 mm.

[0009] Optionally, the depth of the opening is H, HL≥0.5mm.

[0010] Optionally, the opening is a circular hole, the inner diameter of the opening is d, the outer diameter of the threaded section is D2, and d<D2.

[0011] Optionally, the bottom end of the threaded section is pointed.

[0012] Optionally, a chamfer is provided at the top opening of the opening.

[0013] Optionally, a twist groove is provided on the end surface of the head section, and the twist groove is suitable for inserting a twisting tool for twisting the step screw.

[0014] Optionally, the twist groove is a cross-shaped groove.

[0015] Optionally, the thread on the threaded segment is a fine thread.

[0016] In this wall-mounted structure, a stepped surface is formed where the threaded section of the stepped screw meets the step. During assembly, the threaded section of the stepped screw is interference-fitted into the opening until the stepped surface abuts the contact surface of the plastic part. This direct interference fit between the plastic part and the stepped screw avoids the need to interlock the plastic part with the metal part's nut when using a nut as a transition connection, which would increase the molding cycle. This shortens the molding cycle and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the wall-mounted structure provided by one embodiment of the present invention when the product is hung on the wall;

[0018] Figure 2 yes Figure 1 Schematic diagram of the wall-mounted structure in FIG.

[0019] The reference numerals in the specification are as follows:

[0020] 1. Plastic part; 11. Opening hole; 12. Contact surface; 2. Step screw; 21. Threaded section; 22. Step section; 23. Head section; 24. Step surface; 25. Twist groove; 3. Bracket; 4. Connecting screw; 5. Wall. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] Existing wall-mounted electronic devices typically have a nut screwed onto the electronic device's plastic housing. A machine screw threadedly connects to the nut, and the remaining portion of the machine screw is used to mount the bracket. However, when manufacturing existing wall-mounted structures, the nut must first be placed in a mold for the plastic housing and then be screwed together. Then, the machine screw is connected to the nut. This screwing process of the metal nut and the plastic housing together increases the molding cycle and reduces production efficiency. Furthermore, the nut material is consumed, increasing costs. To address the above issues, the present utility model provides a wall-mounted structure.

[0023] like Figure 1 and Figure 2As shown, an embodiment of the present invention provides a wall-hanging structure, including a plastic part 1 and a step screw 2, wherein the plastic part 1 is provided with an opening 11, the top of the opening 11 is open and the bottom is closed, and the step screw 2 includes a threaded section 21, a step section 22 and a head section 23 connected in sequence along its axial direction, and the cross-sectional areas of the threaded section 21, the step section 22 and the head section 23 increase in sequence, and a step surface 24 is formed at the junction of the step section 22 and the threaded section 21, and the step surface 24 is flat and perpendicular to the axis of the step screw 2.

[0024] The cross-sectional area of ​​the threaded segment 21 is greater than that of the opening 11 . The depth of the opening 11 is greater than the length of the threaded segment 21 . The threaded segment 21 is interference-connected in the opening 11 . The plastic part 1 has a contact plane 12 in contact with the step surface 24 .

[0025] like Figure 1 As shown, when using this wall-mounting structure in conjunction with bracket 3 to hang a product on the wall, bracket 3 has a through-hole on one side. The threaded section 21 of the step screw 2 passes through the through-hole on bracket 3 and is screwed into the opening 11 until the step surface 24 abuts the contact surface 12 of the plastic component 1. The head section 23 presses the bracket 3 against the plastic component 1. The other side of the bracket 3 is connected to the wall 5 via connecting screws 4 to hang the product on the wall. It should be noted that the plastic component 1 is a structure on the product.

[0026] Because the cross-sectional area of ​​threaded segment 21 is larger than that of opening 11, threaded segment 21 forms a direct interference fit with plastic component 1, and the connection strength between stepped screw 2 and plastic component 1 meets the wall-mounting strength requirements. Furthermore, the provision of stepped surface 24 allows for accurate installation of stepped screw 2 and prevents it from subsequently sinking completely into opening 11, ensuring the wall-mounting functionality of the structure.

[0027] The wall-hanging structure directly connects the plastic part 1 with the step screw 2, avoiding the use of nuts for transition connection, which causes the molding cycle to be prolonged due to the nut overlap molding of the plastic part 1 and the metal part. This shortens the molding cycle of the plastic part 1 and improves production efficiency. At the same time, it simplifies the wall-hanging structure, makes production easier, and does not require the consumption of nuts, thereby reducing costs.

[0028] In the wall-mounting structure of the present invention, a stepped surface 24 is formed at the junction of the threaded section 21 and the step section 22 of the stepped screw 2. During assembly, the threaded section 21 of the stepped screw 2 is interference-fitted into the opening 11 until the stepped surface 24 abuts the contact surface 12 of the plastic part 1. This direct interference fit between the plastic part 1 and the stepped screw 2 avoids the need to interlock the plastic part 1 with the metal part's nut when using a transition nut, which would increase the molding cycle. This shortens the molding cycle of the plastic part 1 and improves production efficiency.

[0029] In one embodiment, if Figure 2 As shown, the stage 22 is cylindrical, the outer diameter of the stage 22 is D1, the outer diameter of the threaded section 21 is D2, and D1-D2≥1mm to prevent the stage 22 from sinking into the plastic part 1 when the outer diameter of the stage 22 is too small.

[0030] In one embodiment, the length of the threaded section 21 is L, L ≥ 10 mm, so as to increase the connection length between the threaded section 21 and the opening 11, thereby improving the connection strength between the step screw 2 and the plastic part 1, and further increasing the hanging strength of the wall hanging structure.

[0031] Moreover, compared with the prior art in which a nut is inserted into the plastic part 1 and the connection length between the screw and the nut is limited by the length of the nut, resulting in limited hanging strength of the wall-hanging structure, the wall-hanging strength of the utility model is increased, and the step screw 2 is directly connected to the opening 11 of the plastic part 1. The opening 11 is formed when the plastic part 1 is injection molded, and its length is not limited, so that the wall-hanging structure can use screws of corresponding length according to the hanging strength requirements.

[0032] In one embodiment, the depth of the opening 11 is H, HL ≥ 0.5 mm.

[0033] In one embodiment, the opening 11 is a circular hole, the inner diameter of the opening 11 is d, the outer diameter of the threaded section 21 is D2, and d<D2.

[0034] In one embodiment, D1 is 4.0 mm, D2 is 3.0 mm, d is 2.6 mm, H is 13.5 mm, and L is 12.5 mm.

[0035] In one embodiment, the length of the step 22 along the axis of the step screw 2 is 4.2 mm.

[0036] In one embodiment, the bottom end of the threaded segment 21 is pointed to facilitate insertion of the threaded segment 21 into the opening 11 .

[0037] In one embodiment, a chamfer is provided at the top opening of the opening 11 .

[0038] In one embodiment, a twisting groove 25 is provided on the end surface of the head section 23, and the twisting groove 25 is suitable for inserting a twisting tool for twisting the step screw 2. The twisting tool can be an electric tool, such as an electric screwdriver, or a hand tool, such as a screwdriver.

[0039] In one embodiment, the twist groove 25 is a cross-shaped groove.

[0040] In one embodiment, the thread on the threaded section 21 is a fine-pitch thread. The fine-pitch thread has a strong self-locking performance and a relatively good anti-loosening performance, and the connection performance between the threaded section 21 and the plastic part 1 is relatively high.

[0041] In other embodiments, the cross-sectional shape of the platform 22 may be square, oval, or other shapes. The cross-sectional size of the platform 22 must ensure that the platform 22 can contact the contact plane 12 of the plastic part 1 .

[0042] In other embodiments, the opening 11 may be a tapered hole with a wide top and a narrow bottom.

[0043] In other embodiments, the twist groove 25 can be eliminated, and the step screw 2 can be rotated by directly clamping the head section 23 with a tool, such as pliers.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wall-mounted structure, characterized in that: The invention comprises a plastic part (1) and a step screw (2), wherein the plastic part (1) is provided with an opening (11), the top of the opening (11) is open and the bottom is closed, the step screw (2) comprises a threaded section (21), a step section (22) and a head section (23) connected in sequence along its axial direction, the cross-sectional areas of the threaded section (21), the step section (22) and the head section (23) increase in sequence, and a step surface (24) is formed at the junction of the step section (22) and the threaded section (21), and the step surface (24) is a plane and perpendicular to the axis of the step screw (2); The cross-sectional area of ​​the threaded section (21) is greater than the cross-sectional area of ​​the opening (11), the threaded section (21) is interference-connected in the opening (11), the depth of the opening (11) is greater than the length of the threaded section (21), and the plastic part (1) has a contact plane (12) in contact with the step surface (24).

2. The wall-mounted structure according to claim 1, characterized in that: The stage (22) is cylindrical, the outer diameter of the stage (22) is D1, the outer diameter of the threaded section (21) is D2, and D1-D2≥1mm.

3. The wall-mounted structure according to claim 1, wherein: The length of the threaded section (21) is L, where L is ≥ 10 mm.

4. The wall-mounted structure according to claim 3, characterized in that: The depth of the opening (11) is H, HL≥0.5mm.

5. The wall-mounted structure according to claim 1, characterized in that: The opening (11) is a circular hole, the inner diameter of the opening (11) is d, the outer diameter of the threaded section (21) is D2, and d<D2.

6. The wall hanging structure according to any one of claims 1 to 5, characterized in that: The bottom end of the threaded section (21) is pointed.

7. The wall hanging structure according to any one of claims 1 to 5, characterized in that: The top opening of the opening (11) is provided with a chamfer.

8. The wall hanging structure according to any one of claims 1 to 5, characterized in that: A twisting groove (25) is provided on the end surface of the head section (23), and the twisting groove (25) is suitable for inserting a twisting tool for twisting the step screw (2).

9. The wall-mounted structure according to claim 8, characterized in that: The twist groove (25) is a cross-shaped groove.

10. The wall hanging structure according to any one of claims 1 to 5, characterized in that: The thread on the threaded section (21) is a fine thread.

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