Adjustable captive screw combination structure

Abstract

The utility model discloses an adjustable captive screw combination structure which comprises a captive screw, a baffle, a connecting plate and a bolt, and a nut is arranged at one end of the bolt. The screw comprises a screwing part and a threaded part, and the threaded part penetrates through the baffle. A connecting screw hole and at least one fixing hole are formed in the connecting plate, the connecting screw hole is matched with the threaded part of the screw, and the diameter of the fixing hole is larger than that of the bolt and smaller than that of the nut; when the captive screw combination structure is installed on the case shell, the bolts penetrate through the fixing holes and are connected with the threaded holes of the case shell, and the connecting plate is movably hung on the case shell through the bolts so that the relative position between the connecting screw holes and the second through holes of the case shell can be adjusted. And the thread part of the screw penetrates through the second through hole of the case shell and is connected with the connecting screw hole. The locking screw has the advantages of being compact in structure, convenient to operate, high in adjusting flexibility and the like, and the defect that the locking screw cannot be screwed in or feels unsmooth after the center position deviates is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of threaded connection structures, in particular to an adjustable captive screw combination structure suitable for a chassis shell. Background Art

[0002] Captive screws are widely used in devices that require frequent assembly and disassembly, such as external power supplies, switches, and chassis cabinets. Captive screws are generally fixed to a baffle by riveting and then connected to the corresponding electronic equipment. During the installation of the captive screws, it is first necessary to pre-drill holes in the baffle, then insert the captive screws, and then fix them by riveting. In the above process, there are machining tolerances in both the pre-drilling and riveting processes, which can easily cause the center of the captive screw to shift. In addition, the baffle with the captive screws pre-installed is relatively independent of the chassis shell, and the threaded holes are set on the chassis shell. There are also positional tolerances in machining the threaded holes. These are two relatively independent components, and both have positional tolerances. If they are fixed through threaded holes, it is inevitable that they will feel stuck or even unable to be twisted due to inaccurate positioning. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an adjustable captive screw combination structure with a compact structure, convenient operation, long service life and low cost, in order to address the defects of the existing captive screw structure in that the tightening and loosening processes feel stuck or even cannot be tightened.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] 14. The repairing kit for automotive dents, according to claim 13, wherein a bottom of the foot stand comprises a through-hole, the two foot pieces comprising a through-hole, the two foot pieces comprising a through-hole, and a screw threaded within the foot stand, wherein the foot stand comprises a through-hole, and the two foot pieces comprise a through-hole, a screw threaded within the foot stand, and a screw threaded within the foot stand.

[0006] As a further improvement of the present invention, the diameter of the connecting screw hole is smaller than the diameter of the fixing hole.

[0007] As a further improvement of the present invention, a connecting screw hole and two fixing holes are provided on the connecting plate.

[0008] As a further improvement of the present invention, the connecting screw hole is located between the two fixing holes, and the connecting screw hole is located in the middle of the connecting plate.

[0009] As a further improvement of the present invention, the two fixing holes and the connecting screw hole are arranged in sequence, and the connecting screw hole is located on the side of the connecting plate.

[0010] As a further improvement of the present invention, the connecting screw holes and the fixing holes are arranged in a triangle on the connecting plate.

[0011] As a further improvement of the present invention, the thickness of the connecting plate is 2.5 mm to 3.0 mm, and the connecting screw holes are formed by tapping the connecting plate.

[0012] As a further improvement of the present invention, the thickness of the connecting plate is 1.0 mm to 1.5 mm, and a first through hole is provided on the connecting plate. A nut is riveted in the first through hole, and the connecting screw hole is provided in the center of the nut.

[0013] As a further improvement of the present invention, the thickness of the connecting plate is 1.0 mm to 1.5 mm, and the connecting plate is provided with a flange, and the flange is tapped to obtain a connecting screw hole.

[0014] As a further improvement of the present invention, the connecting plate is a sheet metal part made of stainless steel or galvanized sheet.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] The adjustable captive screw combination structure of the utility model provides a connecting screw hole and a fixing hole on the connecting plate, the connecting screw hole matches the threaded portion of the captive screw, and the diameter of the fixing hole is larger than the diameter of the bolt but smaller than the diameter of the nut, so that the connecting plate is movably suspended on the chassis shell by the bolt. At the same time, the limiting position of the nut can also prevent the connecting plate from falling from the chassis shell, and the connecting plate can move arbitrarily within the gap range between the fixing hole and the bolt to adjust the center of the connecting screw hole to be aligned with the center of the captive screw, eliminating the situation where the captive screw cannot be screwed in or feels uncomfortable due to the offset of the center position, and no need to spend a lot of cost to control the precision of each component, which greatly improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structural principle of the captive screw assembly structure in the specific embodiment 1 of the present utility model;

[0018] Figure 2 This is a schematic diagram of the overall structural principle of the connecting plate in the specific embodiment 1 of the present utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure principle of the connecting plate in the specific embodiment 1 of the present utility model;

[0020] Figure 4 This is a schematic diagram of the overall structural principle of the connecting plate in specific embodiment 2 of the present utility model;

[0021] Figure 5 This is a schematic diagram of the overall structural principle of the connecting plate in specific embodiment 3 of the present utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure principle of the connecting plate in specific embodiment 4 of the present utility model;

[0023] Figure 7 This is a schematic diagram of the cross-sectional structure principle of the connecting plate in the specific embodiment 5 of the present utility model;

[0024] Legend: 1. Captive screw; 11. Screw-on portion; 12. Threaded portion; 2. Baffle; 3. Connecting plate; 31. Connecting screw hole; 32. Fixing hole; 33. First through hole; 4. Bolt; 41. Nut; 5. Nut; 100. Chassis shell; 101. Second through hole; 102. Threaded hole. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but the scope of protection of the present invention is not limited thereby.

[0026] In the description of the present invention, it should be understood that the terms "side", "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 should not be understood as a limitation to the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0028] Example 1

[0029] like Figure 1 、 Figure 2 and Figure 3 As shown, the adjustable captive screw assembly structure of the present invention includes: a captive screw 1, a baffle 2, a connecting plate 3 and a bolt 4; the baffle 2 and the connecting plate 3 are respectively located on both sides of the chassis shell 100, that is, the baffle 2 is located on the outside of the chassis shell 100, and the connecting plate 3 is located on the inside of the chassis shell 100. A nut 41 is provided at one end of the bolt 4; the captive screw 1 includes a screwing portion 11 and a threaded portion 12, the threaded portion 12 passes through the baffle 2, and the screwing portion 11 is located on the outside of the baffle 2. By twisting the screwing portion 11, the captive screw 1 can be compressed or stretched. A connecting screw hole 31 and a fixing hole 32 are provided on the connecting plate 3. The connecting screw hole 31 matches the threaded portion 12 of the captive screw 1. The diameter of the fixing hole 32 is larger than the diameter of the bolt 4 and smaller than the diameter of the nut 41. When the captive screw assembly structure is installed on the chassis shell 100, the bolt 4 passes through the fixing hole 32 and is connected to the threaded hole 102 of the chassis shell 100, and the connecting plate 3 is movably suspended on the chassis shell 100 by the bolt 4 to adjust the relative position between the connecting screw hole 31 and the second through hole 101 of the chassis shell 100; the threaded portion 12 of the captive screw 1 passes through the second through hole 101 of the chassis shell 100, and the screwing portion 11 is rotated to screw the threaded portion 12 into the connecting screw hole 31, thereby realizing the connection between the captive screw 1 and the chassis shell 100.

[0030] In this embodiment, by providing a connecting screw hole 31 and a fixing hole 32 on the connecting plate 3, the connecting screw hole 31 matches the threaded portion 12 of the captive screw 1, and the diameter of the fixing hole 32 is larger than the diameter of the bolt 4 but smaller than the diameter of the nut 41, the connecting plate 3 is movably suspended on the chassis shell 100 by the bolt 4. At the same time, the limiting effect of the nut 41 can also prevent the connecting plate 3 from falling from the chassis shell 100, and the connecting plate 3 can move arbitrarily within the movable gap between the fixing hole 32 and the bolt 4 to adjust the center of the connecting screw hole 31 to be aligned with the center of the captive screw 1, eliminating the situation where the captive screw 1 cannot be screwed in or feels uncomfortable due to the offset of the center position, and there is no need to spend a lot of cost to control the precision of each component, which greatly improves the user experience.

[0031] In this embodiment, the connecting plate 3 is made of a sheet metal of stainless steel, which has the characteristics of high structural strength and low cost. In other embodiments, the connecting plate 3 can also be made of a sheet metal of galvanized sheet material.

[0032] like Figure 2 and Figure 3As shown, the diameter of the connecting screw hole 31 is smaller than the diameter of the fixing hole 32, so that the connecting plate 3 has a relatively ample adjustment space on the chassis shell 100, thereby improving the installation adaptability of the captive screw 1. Since the diameter of the fixing hole 32 is larger than the diameter of the bolt 4, when the bolt 4 is connected and fixed to the chassis shell 100, the connecting plate 3 can rely on the bolt 4 and move in the four directions of up / down / left / right within the range of the movable gap between the bolt 4 and the fixing hole 32. In this embodiment, the height of the bolt 4 needs to be slightly higher than the thickness of the connecting plate 3, and the nut 41 is used to limit the connection plate 3, which can effectively prevent the connection plate 3 from falling, and will not crush the connection plate 3 and make it unable to move.

[0033] like Figure 2 and Figure 3 As shown, the connecting plate 3 is provided with a connecting screw hole 31 and two fixing holes 32. The connecting screw hole 31 is located between the two fixing holes 32 and is located in the middle of the connecting plate 3.

[0034] Furthermore, the thickness of the connecting plate 3 is 2.5 mm to 3.0 mm, and the connecting plate 3 is tapped to form a connecting screw hole 31. This not only realizes the installation connection with the screws that cannot be loosened, but also saves installation space.

[0035] In this embodiment, there is no need to spend a lot of cost to control the accuracy of each component. The connecting plate 3 has sufficient space to move. Even if there is a slight deviation, the captive screws can be smoothly screwed into the connecting screw holes 31. There is no problem of tightening / loosening smoothly, getting stuck, or even being unable to tighten, which greatly improves the user experience.

[0036] Example 2

[0037] like Figure 4 As shown, the adjustable captive screw assembly structure of this embodiment has a similar structural arrangement and operating principle to the adjustable captive screw assembly structure of Example 1, the main difference being that the two fixing holes 32 and the connecting screw hole 31 are arranged in sequence, and the connecting screw hole 31 is located on the side of the connecting plate 3. During use, the connecting plate 3 can be arranged horizontally on the chassis housing 100.

[0038] Example 3

[0039] like Figure 5 As shown, the adjustable captive screw combination structure of this embodiment has a similar structural arrangement and working principle to the adjustable captive screw combination structure in Example 1. The main difference is that the connecting screw hole 31 and the fixing hole 32 are arranged in a triangular shape on the connecting plate 3, which is beneficial to improving the installation stability of the captive screw 1.

[0040] Example 4

[0041] like Figure 6 As shown, the adjustable captive screw assembly structure of this embodiment has a similar structural arrangement and working principle to the adjustable captive screw assembly structure in Example 1, the main difference being that the connecting plate 3 is made of an ultra-thin sheet metal with a thickness of 1.0 mm to 1.5 mm, a first through hole 33 is provided on the connecting plate 3, a nut 5 is riveted into the first through hole 33, and a connecting screw hole 31 is provided at the center of the nut 5. The connecting plate 3 is made of a thinner sheet metal and the nut 5 with the connecting screw hole 31 is provided by riveting, which can also achieve the relative position between the connecting plate 3 and the chassis housing 100, ensure that the center of the connecting screw hole 31 is aligned with the center of the captive screw 1, and improve the adaptability of the installation and removal of the captive screw 1.

[0042] In other embodiments, when the two fixing holes 32 and the connecting screw hole 31 are arranged in sequence, the connecting screw hole 31 is located on the side of the connecting plate 3, or the connecting screw hole 31 and the fixing hole 32 are arranged in a triangle, an ultra-thin connecting plate 3 can also be used, and the nut 5 can be riveted to the connecting plate 3.

[0043] Example 5

[0044] like Figure 7 As shown, the adjustable captive screw assembly structure of this embodiment has a similar structural arrangement and operating principle to that of the adjustable captive screw assembly structure in Example 1. The main difference is that the connecting plate 3 is made of an ultra-thin sheet metal with a thickness of 1.0 mm to 1.5 mm, and is provided with a flanging, which is tapped to form the connecting screw holes 31. By using a flanging process on the sheet metal and directly tapping the flanging to form the connecting screw holes 31, the installation space of the connecting plate 3 is reduced while ensuring the installation stability of the captive screws 1.

[0045] In other embodiments, when two fixing holes 32 and connecting screw holes 31 are arranged in sequence, the connecting screw hole 31 is located on the side of the connecting plate 3, or the connecting screw hole 31 and the fixing hole 32 are arranged in a triangle, an ultra-thin connecting plate 3 can also be used, and a flanging process can be used in the connecting plate 3, and then the connecting screw hole 31 is directly tapped on the flanging to obtain the connecting screw hole 31.

[0046] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An adjustable captive screw assembly structure, characterized in that: include: A captive screw (1), a baffle (2), a connecting plate (3) and a bolt (4), wherein the baffle (2) and the connecting plate (3) are respectively located on both sides of the chassis shell (100), and a nut (41) is provided at one end of the bolt (4); the captive screw (1) comprises a screwing portion (11) and a threaded portion (12), and the threaded portion (12) passes through the baffle (2); a connecting screw hole (31) and a fixing hole (32) are provided on the connecting plate (3), and the connecting screw hole (31) matches the threaded portion (12) of the captive screw (1), and the diameter of the fixing hole (32) is larger than that of the bolt (4). The diameter of the captive screw assembly is smaller than the diameter of the nut (41); when the captive screw assembly structure is installed on the chassis shell (100), the bolt (4) passes through the fixing hole (32) and is connected to the threaded hole (102) of the chassis shell (100); the connecting plate (3) is movably suspended on the chassis shell (100) by the bolt (4) to adjust the relative position between the connecting screw hole (31) and the second through hole (101) of the chassis shell (100); the threaded portion (12) of the captive screw (1) passes through the second through hole (101) of the chassis shell (100) and is connected to the connecting screw hole (31).

2. The adjustable captive screw assembly structure according to claim 1, characterized in that: The diameter of the connecting screw hole (31) is smaller than the diameter of the fixing hole (32).

3. The adjustable captive screw assembly structure according to claim 2, characterized in that: The connecting plate (3) is provided with a connecting screw hole (31) and two fixing holes (32).

4. The adjustable captive screw assembly structure according to claim 3, characterized in that: The connecting screw hole (31) is located between the two fixing holes (32), and the connecting screw hole (31) is located in the middle of the connecting plate (3).

5. The adjustable captive screw assembly structure according to claim 3, characterized in that: The two fixing holes (32) and the connecting screw hole (31) are arranged in sequence, and the connecting screw hole (31) is located on the side of the connecting plate (3).

6. The adjustable captive screw assembly structure according to claim 3, characterized in that: The connecting screw holes (31) and the fixing holes (32) are arranged in a triangular shape on the connecting plate (3).

7. The adjustable captive screw assembly structure according to claim 4, 5 or 6, characterized in that: The thickness of the connecting plate (3) is 2.5 mm to 3.0 mm, and the connecting plate (3) is tapped to obtain a connecting screw hole (31).

8. The adjustable captive screw assembly structure according to claim 4, 5 or 6, characterized in that: The thickness of the connecting plate (3) is 1.0 mm to 1.5 mm. A first through hole (33) is provided on the connecting plate (3). A nut (5) is riveted into the first through hole (33). The connecting screw hole (31) is arranged at the center of the nut (5).

9. The adjustable captive screw assembly structure according to claim 4, 5 or 6, characterized in that: The thickness of the connecting plate (3) is 1.0 mm to 1.5 mm. The connecting plate (3) is provided with a flange, and the flange is tapped to obtain a connecting screw hole (31).

10. The adjustable captive screw assembly structure according to any one of claims 1 to 6, characterized in that: The connecting plate (3) is a sheet metal part made of stainless steel or galvanized sheet.

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