Metal plate cabinet screw hole rust-proof structure
By setting up stretching grooves and square holes on the inner liner wall of the display cabinet, and designing a rotary and clamped screw fixing seat, combined with the structure of the shield plate and the square boss, the problem of the inner liner positioning hole being damaged by the screw is solved, achieving the effect of preventing rust.
Patent Information
- Application Number
- CN202420931264.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-04-30
AI Technical Summary
During the production process of the display cabinet, the positioning holes on the inner liner are easily damaged by screws, resulting in the risk of rust by the end user during use.
A sheet metal cabinet screw hole anti-rust structure is designed. By stamping the stretching groove on the inner liner wall and punching the square hole at the bottom of the stretching groove, it provides installation space for the screw fixing seat. The screw fixing seat is designed to rotate and clamp it on the surface of the inner liner wall, and prevent the screw from breaking the inner liner wall by the combination of the shield and the square boss.
It effectively prevents damage to the inner liner wall by the components during the fixing process, reduces the risk of rust, and improves the rust prevention ability of the inner liner.
Smart Images
Figure CN222787405U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of display cabinets, in particular to a rust-proof structure for screw holes of a sheet metal cabinet. Background Art
[0002] At present, the demand for sheet metal inner shells of display cabinets is increasing. More and more large-volume display cabinet inner shells are made of sheet metal. For cost considerations and to reduce the risk of rust, most inner shells are made of galvanized sheet metal, and then the surface is sprayed with electrostatic powder for protection. Some parts inside the box need to be fixed on the inner shell, so the sheet metal inner shell needs to reserve positioning holes to position other parts, and usually an aluminum plate or galvanized plate is attached to the back of the inner shell for reinforcement.
[0003] However, during the production process, the positioning holes on the inner liner will be damaged by the screws, resulting in the risk of rust during use by the end user. This patent aims to design a screw fixing seat and a method for preventing rust on the inner liner positioning holes in response to this phenomenon. Utility Model Content
[0004] The purpose of the utility model is to provide a rust-proof structure for screw holes of a sheet metal cabinet to solve the problem in the above-mentioned background technology that during the production process, the positioning holes on the inner tank may be damaged by screws, resulting in the risk of rust during use by the end user.
[0005] To achieve the above-mentioned purpose, the utility model provides a sheet metal cabinet screw hole rust-proof structure, including a cabinet, a stretching groove is stamped at the inner wall of the cabinet, a square hole is punched at the bottom of the stretching groove, a screw fixing seat is installed at the stretching groove, the screw fixing seat passes through the inner wall and is rotated and clamped on the surface of the inner wall, a baffle is installed on the outside of the screw fixing seat, a square boss is installed in the middle of the baffle, the square boss passes through the square hole, and the inner wall of the stretching groove of the inner wall is blocked by the baffle, which can effectively prevent the screws from damaging the inner wall during the fixing process of the components, thereby achieving the purpose of preventing rust.
[0006] Preferably, the inner wall is made of galvanized sheet material, and the outer surface is protected by electrostatic spraying powder.
[0007] Preferably, the screw fixing seat is made of nylon or ABS.
[0008] Preferably, a square boss is installed in the middle of the outside of the screw fixing seat, the outer wall of the square boss is provided with a screw fixing hole, and the corners of the square boss are provided with a card slot. The square boss of the screw fixing seat passes through the square hole and is rotated a certain angle to clamp it. Then the screw is screwed into the screw fixing hole on the screw fixing seat and tightened. Because the baffle plate of the screw fixing seat 4 wraps the inner liner wall 11, the screw 5 will not damage the inner liner wall 11 during the screwing process.
[0009] Preferably, a screw is installed on the screw fixing hole.
[0010] Preferably, a screw pick is installed on the outer side wall of the screw fixing seat.
[0011] Preferably, a round hole is provided in the middle of the square hole, the screw fixing seat adopts a cylindrical structure, and a claw is installed on the outer wall, the screw fixing seat passes through the round hole, and the claw is clamped in the stretching groove by rotating the screw fixing seat.
[0012] Preferably, the shape of the shielding plate is adapted to the internal shape of the stretching groove.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] In the sheet metal cabinet screw hole rust-proof structure, a stretching groove is punched on the cabinet inner wall, and a square hole is punched at the bottom of the stretching groove to provide installation space for the screw fixing seat. The design of the screw fixing seat is ingenious so that it can be rotated and clamped on the inner wall surface, ensuring the stability and reliability of the fixation.
[0015] Secondly, the design of the shielding plate not only shields the inner wall of the stretching groove of the inner tank wall, but also further enhances the stability of the structure through the square boss passing through the square hole. This design effectively prevents the components from damaging the inner tank wall during the fixing process, thereby achieving the purpose of preventing rust.
[0016] In addition, the use of non-metallic materials such as nylon or ABS to make the screw fixing seat can further reduce the metal contact with the inner wall and reduce the risk of electrochemical corrosion. At the same time, the inner wall is made of galvanized sheet and the outer surface is electrostatically sprayed with powder for protection. The double anti-rust measures more effectively improve the anti-rust ability of the inner tank. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is a structural schematic diagram of the stretching groove in the utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the screw fixing seat in the utility model;
[0020] Figure 4 This is one of the installation diagrams of the utility model;
[0021] Figure 5 This is the second installation diagram of the utility model;
[0022] Figure 6 It is a schematic diagram of a partial explosion structure of the utility model;
[0023] Figure 7 It is another structural schematic diagram of the stretching groove in the utility model;
[0024] Figure 8 This is another structural schematic diagram of the screw fixing seat in the utility model.
[0025] The meaning of each number in the figure is:
[0026] 1. Cabinet body; 11. Inner wall; 2. Stretching groove; 3. Square hole; 4. Screw fixing seat; 41. Square boss; 42. Screw fixing hole; 43. Slot; 44. Claw; 45. Baffle; 46. Turning paddle; 5. Screw; 6. Round hole. DETAILED DESCRIPTION
[0027] 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.
[0028] Example 1
[0029] The utility model provides a rust-proof structure for screw holes of a sheet metal cabinet, such as Figure 1-Figure 6 As shown, it includes a cabinet body 1, a stretching groove 2 is punched at the inner wall of the cabinet body 1, a square hole 3 is punched at the bottom of the stretching groove 2, a screw fixing seat 4 is installed at the stretching groove 2, the screw fixing seat 4 passes through the inner wall 11 and is rotated and clamped on the surface of the inner wall 11, a shielding plate 45 is installed on the outside of the screw fixing seat 4, a square boss 41 is installed in the middle of the shielding plate 45, the square boss 41 passes through the square hole 3, and the inner wall of the stretching groove 2 of the inner wall 11 is shielded by the shielding plate 45, which can effectively prevent the screws from damaging the inner wall 11 during the fixing process of the components, thereby achieving the purpose of preventing rust.
[0030] In this embodiment, the inner wall 11 is made of galvanized sheet material, and the outer surface is electrostatically sprayed with powder for protection to improve the anti-rust effect.
[0031] Specifically, the screw fixing seat 4 is made of nylon or ABS material to improve strength and prevent damage.
[0032] Furthermore, a square boss 41 is installed in the middle of the outside of the screw fixing seat 4, and a screw fixing hole 42 is provided on the outer wall of the square boss 41. A card slot 43 is provided at the corner of the square boss 41. The square boss 41 of the screw fixing seat 4 passes through the square hole 3 and is rotated a certain angle to be clamped. Then the screw 5 is screwed into the screw fixing hole 42 on the screw fixing seat 4 and tightened. Because the baffle plate 45 of the screw fixing seat 4 wraps the inner liner wall 11, the screw 5 will not damage the inner liner wall 11 during the screwing process.
[0033] Furthermore, a screw 5 is installed on the screw fixing hole 42, and locking and fixing are achieved by connecting the screw 5 with the screw fixing hole 42.
[0034] Furthermore, a screwing paddle 46 is installed on the outer side wall of the screw fixing seat 4 to facilitate manual screwing of the screw fixing seat 4 .
[0035] Example 2
[0036] The utility model also provides another anti-rust structure, such as Figure 7 , Figure 8 As shown, a circular hole 6 is provided in the middle of the square hole 3, the screw fixing seat 4 adopts a cylindrical structure, and a claw 44 is installed on the outer wall. The screw fixing seat 4 passes through the circular hole 6, and the claw 44 is clamped in the stretching groove 2 by rotating the screw fixing seat 4. The screw fixing seat 4 passes through the circular hole 6 of the inner liner wall 11, rotates a certain angle, and is clamped with the inner liner wall 11 through two claws 44.
[0037] Furthermore, the shape of the shielding plate 45 is adapted to the internal shape of the stretching groove 2 , so that the inner liner wall 11 will not be damaged when the screw 5 is screwed in.
[0038] When the sheet metal cabinet screw hole rust-proof structure of the utility model is used, first, a stretching groove 2 is punched and set at the inner wall of the cabinet 1 as needed, and a square hole 3 (or a round hole 6) is punched at the bottom of the stretching groove 2. Then, the screw fixing seat 4 is installed at the stretching groove 2. The design of the screw fixing seat 4 is unique, and the square boss 41 (or the cylindrical structure in Example 2) installed in the middle of the outside passes through the square hole 3 (or the round hole 6). Then, the screw fixing seat 4 is rotated to clamp it on the inner wall 11.
[0039] In the design of the square boss 41, a screw fixing hole 42 is provided on its outer wall for fixing the screw 5. When the screw 5 is screwed into the screw fixing hole 42 and tightened, the shielding plate 45 installed outside the screw fixing seat 4 shields the inner wall of the stretching groove 2 of the inner liner wall 11, and the screw 5 does not directly contact the inner liner wall 11, thereby avoiding the damage of the anti-rust layer of the inner liner wall due to the tightening of the screw.
[0040] In addition, a screwing paddle 46 is installed on the outer wall of the screw fixing seat 4 to facilitate the manual screwing operation. In Example 2, the screw fixing seat 4 is rotated so that the claw 44 of the outer wall is stuck in the stretching groove 2 to achieve a fast connection between the fixing seat and the inner wall.
[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A sheet metal cabinet screw hole rust-proof structure, comprising a cabinet (1), characterized in that: A stretching groove (2) is punched on the inner wall of the cabinet body (1), a square hole (3) is punched at the bottom of the stretching groove (2), a screw fixing seat (4) is installed at the stretching groove (2), the screw fixing seat (4) passes through the inner wall (11) and is rotated and clamped on the surface of the inner wall (11), a shielding plate (45) is installed on the outside of the screw fixing seat (4), a square boss (41) is installed in the middle of the shielding plate (45), the square boss (41) passes through the square hole (3), and the inner wall of the stretching groove (2) of the inner wall (11) is shielded by the shielding plate (45).
2. The sheet metal cabinet screw hole rust-proof structure according to claim 1, characterized in that: The inner container wall (11) is made of galvanized sheet material, and the outer surface is electrostatically sprayed with powder for protection.
3. The sheet metal cabinet screw hole rust-proof structure according to claim 1, characterized in that: The screw fixing seat (4) is made of nylon or ABS material.
4. The sheet metal cabinet screw hole rust-proof structure according to claim 1, characterized in that: A square boss (41) is installed in the middle of the outside of the screw fixing seat (4), a screw fixing hole (42) is arranged on the outer wall of the square boss (41), and a clamping groove (43) is arranged at the corner of the square boss (41). The square boss (41) of the screw fixing seat (4) passes through the square hole (3) and is rotated at a certain angle to be clamped.
5. The sheet metal cabinet screw hole rust-proof structure according to claim 4, characterized in that: A screw (5) is installed on the screw fixing hole (42).
6. The sheet metal cabinet screw hole rust-proof structure according to claim 4, characterized in that: A screwing paddle (46) is installed on the outer side wall of the screw fixing seat (4).
7. The sheet metal cabinet screw hole rust-proof structure according to claim 1, characterized in that: A circular hole (6) is arranged in the middle of the square hole (3); the screw fixing seat (4) adopts a cylindrical structure, and a clamping claw (44) is installed on the outer wall; the screw fixing seat (4) passes through the circular hole (6), and the clamping claw (44) is clamped in the stretching groove (2) by rotating the screw fixing seat (4).
8. The sheet metal cabinet screw hole rust-proof structure according to claim 1, characterized in that: The shape of the shielding plate (45) is adapted to the internal shape of the stretching groove (2).