Nut and device having the nut

Abstract

The present invention discloses a nut and a device having the nut, wherein the nut comprises a bottom plate portion, a middle column portion, an upper column portion and a threaded hole that penetrates vertically and are sequentially connected from bottom to top, the middle column portion is connected to the middle position of the bottom plate portion, the upper column portion is connected to the middle position of the middle column portion, the bottom plate portion and the middle column portion are configured to be molded in a plastic shell, the upper column portion is configured to be exposed on the upper side of the plastic shell, a material clamping space for plastic filling is formed between the top wall of the bottom plate portion and the outer wall of the middle column portion, the bottom plate portion is distributed with a plurality of material clamping notches along its outer wall and / or the outer wall of the middle column portion forms a knurled surface. When the nut of the present invention is combined with the plastic shell and forms a nut boss, the formed nut boss can have the advantage of occupying a small space, and the formation of the nut boss does not have the disadvantages of high cost, long manufacturing process and low reliability.

Description

Technical Field

[0001] The present invention relates to the field of machinery, and in particular to a nut and a device having the nut. Background Art

[0002] With the development of ultra-narrow bezels, ultra-thinness, and ultra-lightness of laptops and the strengthening of cost control awareness, the various structural designs of laptops also need to continue to innovate.

[0003] Currently, there are usually two solutions to lock the hinge structure onto the plastic housing at the screen end.

[0004] One is to embed the traditional nut in the plastic shell directly by embedding the nail in the mold, and then use the screw and nut to fix the shaft structure on the plastic shell. However, this solution requires a large space, which is not conducive to achieving an ultra-narrow frame.

[0005] Please refer to Figure 1.1 to Figure 1.5 and Figure 6 The conventional nut 9 is cylindrical, and an annular clamping groove 99 is formed in the middle of its outer wall. The nut 9 is molded in the plastic housing 5, wherein the nut 9 is completely wrapped by plastic in the height direction, and the plastic wrapping the upper part of the nut 9 forms an annular structure 51, and the annular structure 51 and the upper part of the nut 9 together form a nut boss for the shaft structure to be sleeved. However, since the nut boss is composed of the upper part of the nut 9 and the annular structure 51, the outer diameter of the nut boss is relatively large. At the same time, the setting of the annular clamping groove 99 also restricts the outer diameter of the nut boss to a certain extent.

[0006] The second method is to bond a steel sheet to the housing, and then rivet a nut on the steel sheet, and then use the screw and nut to fix the shaft structure to the housing. Although this solution requires a small space, it has the disadvantages of high cost, long manufacturing process, and low reliability. Specifically, this solution increases the cost of the steel sheet, the cost of riveting the nut, and the cost of bonding the steel sheet; the bonding of the steel sheet and the riveting of the nut extend the manufacturing process; at the same time, there is a possibility of debonding in the bonding of the steel sheet, which leads to the problem of low reliability. Summary of the invention

[0007] The object of the present invention is to provide a nut which, when combined with a plastic shell to form a nut boss, can not only make the formed nut boss have the advantage of occupying a small space, but also make the formation of the nut boss not have the disadvantages of high cost, long manufacturing process and low reliability.

[0008] Another object of the present invention is to provide a device on which the nut boss formed has the advantage of occupying a small space, while the formation of the nut boss does not have the disadvantages of high cost, long manufacturing process and low reliability.

[0009] To achieve the above-mentioned purpose, the present invention provides a nut for in-mold molding in a plastic shell, the nut comprising a bottom plate portion, a middle column portion, an upper column portion and a vertically penetrating threaded hole connected in sequence from bottom to top, the middle column portion being connected to the middle position of the bottom plate portion, the upper column portion being connected to the middle position of the middle column portion, the bottom plate portion and the middle column portion being configured to be molded in the plastic shell, the upper column portion being configured to be exposed on the upper side of the plastic shell, a material clamping space for plastic filling being formed between the top wall of the bottom plate portion and the outer wall of the middle column portion, the bottom plate portion being provided with a plurality of material clamping notches distributed along its outer wall and / or the outer wall of the middle column portion forming a knurled surface.

[0010] Optionally, the middle column portion and the upper column portion are both cylindrical and coaxially arranged.

[0011] Optionally, the bottom plate portion is in the shape of a circular plate and is coaxially arranged with the middle column portion and the upper column portion.

[0012] Optionally, a plurality of the material-holding notches are distributed at equal intervals along the outer wall of the bottom plate portion.

[0013] Optionally, the material-holding notch is an arc-shaped notch.

[0014] Optionally, the bottom plate portion has a plurality of the material retaining notches distributed along its outer wall, the outer wall of the middle column portion forms the knurled surface, and the depth of the material retaining notches is greater than the depth of the knurling of the knurled surface.

[0015] Optionally, the nut is made of sus303.

[0016] To achieve the other purpose mentioned above, the present invention provides a device, including a plastic shell and a nut molded in the plastic shell, the nut is as described above, the bottom plate portion and the middle column portion are molded in the plastic shell, the upper column portion is exposed on the upper side of the plastic shell, and the clamping space, the clamping notch and / or the knurling of the knurled surface are filled with plastic.

[0017] Optionally, the device further comprises a sleeve connector, on which a sleeve connector is formed a sleeve hole sleeved on the upper column portion.

[0018] Optionally, the device is a laptop computer, the plastic shell belongs to the screen end of the laptop computer, and the socket is a rotating shaft structure.

[0019] The nut of the present invention is provided with a clamping space between the top wall of the bottom plate and the outer wall of the middle column, so that the nut can withstand a certain pulling force after being molded in the plastic shell; and, since the depth and width of the clamping space depend on the plate surface size of the bottom plate and the height of the middle column, respectively, by setting the plate surface size of the bottom plate and the height of the middle column during nut processing, it is easy to make the clamping space of the nut of the present invention have a deeper depth and / or width than the clamping groove of the traditional nut, thereby further increasing the pulling force that the nut can withstand. In addition, by distributing a number of clamping notches along the outer wall of the bottom plate and / or forming a knurled surface on the outer wall of the middle column, the nut of the present invention is molded in the plastic shell and can withstand a certain torsion. Since the nut of the present invention can withstand a certain pulling force by means of the setting of the clamping space, and can withstand a certain torsion by means of the setting of a number of clamping notches and / or knurled surfaces, the nut of the present invention can still be firmly molded in the plastic shell when its upper column is exposed on the upper side of the plastic shell; at the same time, since the bottom plate and the middle column have relatively large sizes, the upper column can still maintain a certain structural strength when the size is relatively small. That is to say, when it is necessary to mold in the plastic shell and form a nut boss, the upper column of the nut of the present invention can be directly used as a nut boss without wrapping the upper column with plastic. At the same time, by means of the structural design of the nut itself, the upper column can have a relatively small size, thereby effectively reducing the space occupied by the nut boss; in addition, compared with the technical solution of bonding steel sheets and then riveting nuts, the present invention does not have the disadvantages of high cost, long manufacturing process and low reliability. In addition, when there are retaining notches on the outer wall of the bottom plate, since the retaining notches have a deeper depth than the traditional knurling design, they can increase the nut's ability to withstand torque; and when the nut of the present invention has both retaining notches and knurling surfaces, it will have a better ability to withstand torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1.1 to Figure 1.5 It is a structural diagram of a traditional nut.

[0021] Figure 2.1 to Figure 2.5 It is a schematic structural diagram of a nut according to an embodiment of the present invention.

[0022] Figure 3 It is a schematic diagram of the partial structure of the device according to the embodiment of the present invention.

[0023] Figure 4 yes Figure 3 Schematic diagram after hiding part of the structure.

[0024] Figure 5 1 is a cross-sectional schematic diagram of the device according to the embodiment of the present invention, showing the positional relationship among the nut, the plastic housing and the socket according to the embodiment of the present invention.

[0025] Figure 6 1 is another cross-sectional schematic diagram of the device according to the embodiment of the present invention, to show the positional relationship among the conventional nut, the plastic housing and the socket. DETAILED DESCRIPTION

[0026] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the implementation modes and the accompanying drawings.

[0027] In the description of the present invention, the directional words "upper", "lower", "vertical" and "bottom" are merely directional expressions under specific placement states defined to simplify the description of the present invention, and therefore cannot be understood as limiting the protection content of the present invention.

[0028] Please refer to Figures 1 to Figure 6 The present invention discloses a nut 1 for in-mold molding in a plastic shell 5. The nut 1 includes a bottom plate portion 10, a middle column portion 20, an upper column portion 30 and a vertically penetrating threaded hole 40 which are sequentially connected from bottom to top. The middle column portion 20 is connected to the middle position of the bottom plate portion 10, and the upper column portion 30 is connected to the middle position of the middle column portion 20. The bottom plate portion 10 and the middle column portion 20 are configured to be molded in the plastic shell 5, and the upper column portion 30 is configured to be exposed on the upper side of the plastic shell 5. A clamping space 12 for plastic filling is formed between the top wall of the bottom plate portion 10 and the outer wall of the middle column portion 20. The bottom plate portion 10 is provided with a plurality of clamping notches 13 distributed along its outer wall and / or a knurled surface 21 is formed on the outer wall of the middle column portion 20.

[0029] The nut 1 of the present invention is provided with a clamping space 12 between the top wall of the bottom plate 10 and the outer wall of the middle column 20, so that the nut 1 can withstand a certain pulling force after being molded in the plastic housing 5; and, since the depth and width of the clamping space 12 depend on the plate surface size of the bottom plate 10 and the height of the middle column 20, respectively, by setting the plate surface size of the bottom plate 10 and the height of the middle column 20 during the processing of the nut 1, it is easy to make the clamping space 12 of the nut 1 of the present invention relative to the clamping groove 99 of the conventional nut 9 (such as Figure 1.1 to Figure 1.5The nut 1 of the present invention can withstand a certain torsion force after being molded in the plastic shell 5 by distributing a plurality of material notches 13 along the outer wall of the bottom plate portion 10 and / or forming a knurled surface 21 on the outer wall of the middle column portion 20. Since the nut 1 of the present invention can withstand a certain pull-out force by means of the provision of the material space 12, and can withstand a certain torsion force by means of the provision of a plurality of material notches 13 and / or the knurled surface 21, the nut 1 of the present invention can still be firmly molded in the plastic shell 5 when its upper column portion 30 is exposed on the upper side of the plastic shell 5; at the same time, since the bottom plate portion 10 and the middle column portion 20 have relatively large sizes, the upper column portion 30 can still maintain a certain structural strength when the size is relatively small. That is to say, when it is necessary to mold the plastic shell 5 and form a nut boss, the upper column 30 of the nut 1 of the present invention can be directly used as a nut boss without wrapping the upper column 30 with plastic. At the same time, by virtue of the structural design of the nut 1 itself, the upper column 30 can be made to have a relatively small size, thereby effectively reducing the space occupied by the nut boss. In addition, compared with the technical solution of bonding steel sheets and then riveting the nut 1, the present invention does not have the disadvantages of high cost, long manufacturing process and low reliability. In addition, when the outer wall of the bottom plate 10 is distributed with a clamping notch 13, since the clamping notch 13 has a deeper depth than the traditional knurling design, it can play a role in increasing the torque bearing capacity of the nut 1; and when the nut 1 of the present invention has both a clamping notch 13 and a knurling surface 21, it will have a better ability to bear torque.

[0030] In the embodiment provided by the present invention, after the nut 1 is molded in the plastic housing 5, the upper column portion 30 thereof is used as a nut boss. However, the use of the nut 1 of the present invention is not limited thereto.

[0031] In the embodiments provided by the present invention, generally speaking, the entire upper column 30 is not covered by the plastic shell 5; of course, it is not excluded that in certain use cases, the lower part of the upper column 30 will be covered by the plastic shell 5. In other words, the "upper column 30 exposed on the upper side of the plastic shell 5" mentioned in the present invention does not necessarily mean that it is completely exposed.

[0032] Generally speaking, the middle column portion 20 and the upper column portion 30 are both cylindrical and coaxially arranged, but not limited thereto, for example, the upper column portion 30 is cylindrical, while the middle column portion 20 is non-cylindrical.

[0033] Preferably, the bottom plate 10 is in a circular plate shape and is coaxially arranged with the middle column 20 and the upper column 30. Specifically, a plurality of material-holding notches 13 are distributed along the outer wall of the bottom plate 10 at equal intervals.

[0034] In some embodiments, the material-holding notch 13 is an arc-shaped notch. Of course, the material-holding notch 13 can also be in other shapes.

[0035] In some embodiments, the bottom plate portion 10 has a plurality of material-locking notches 13 distributed along its outer wall, and the outer wall of the middle column portion 20 forms a knurled surface 21, and the depth of the material-locking notches 13 is greater than the depth of the knurling of the knurled surface 21. With this design, the nut 1 of the present invention can withstand greater torque, further increasing the stability of the nut 1 of the present invention when it is in-molded in the plastic housing 5.

[0036] In the specific example, the material of the nut 1 is SUS303, which has higher strength than the traditional nut 9 made of brass, making it easier to make the size smaller.

[0037] Taking the M2.0 nut 1 as an example, the conventional nut 9 used by embedding nails in the mold and the nut 1 in the specific example of the present invention are compared and explained below:

[0038] See also Figure 1.1 to Figure 1.5 and Figure 6 The traditional nut 9 is cylindrical, with a minimum material thickness of 0.5mm (the material thickness at the card slot 99), and a minimum outer diameter of 5.6mm when in use (the outer diameter of the nut 1 itself is 3.6mm plus the thickness of the plastic wrapped around its outer side is 2.0mm). The depth of the card slot 99 is 0.3mm, the width of the card slot 99 is 0.4mm, and the knurling depth of the knurled surface 98 is 0.15mm.

[0039] See also Figure 2.1 to Figure 2.5 and Figure 5 The nut 1 in the specific example of the present invention has a minimum material thickness of 0.5 mm (the wall thickness of the upper column 30 ), a minimum outer diameter when in use of 3.0 mm (the outer diameter of the upper column 30 ), a depth of the clamping space 12 of 1.0 mm, a width of the clamping space 12 of 0.8 mm, and a depth of the clamping notch 13 of 0.5 mm.

[0040] By comparison, it can be seen that in terms of the minimum material thickness, the nut 1 in the example of the present invention is on par with the traditional nut 9; in terms of the minimum outer diameter, the nut 1 in the example of the present invention is much smaller than the traditional nut 9, which helps to make the nut boss occupy a smaller space after being in-molded in the plastic shell 5; the depth and width of the clamping space 12 of the nut 1 in the example of the present invention are much greater than the depth and width of the clamping groove 99 of the traditional nut 9, which can provide a greater pulling force; the depth of the clamping notch 13 of the nut 1 in the example of the present invention is much greater than the depth of the knurling of the traditional nut 9, which can provide a greater torque, and the nut 1 in the example of the present invention can also be provided with a knurled surface 21, which can further increase the ability of the nut 1 to withstand torque.

[0041] Please refer to Figures 1 to Figure 6The present invention also discloses a device, including a plastic shell 5 and a nut 1 molded in the plastic shell 5. The nut 1 is as described in the above embodiment, the bottom plate portion 10 and the middle column portion 20 of the nut 1 are molded in the plastic shell 5, the upper column portion 30 of the nut 1 is exposed on the upper side of the plastic shell 5, and the clamping space 12, the clamping notch 13 and / or the knurling of the knurled surface 21 are filled with plastic.

[0042] The nut 1 of the device of the present invention is provided with a material clamping space 12 between the top wall of the bottom plate 10 and the outer wall of the middle column 20, so that the nut 1 can withstand a certain pulling force after being molded in the plastic shell 5; and, since the depth and width of the material clamping space 12 depend on the plate surface size of the bottom plate 10 and the height of the middle column 20, respectively, by setting the plate surface size of the bottom plate 10 and the height of the middle column 20 during the processing of the nut 1, it is easy to make the material clamping space 12 of the nut 1 of the present invention have a deeper depth and / or width relative to the material clamping groove 99 of the traditional nut 9, thereby further increasing the pulling force that the nut 1 can withstand. In addition, by distributing a plurality of material clamping notches 13 along the outer wall of the bottom plate 10 and / or forming a knurled surface 21 on the outer wall of the middle column 20, the nut 1 can withstand a certain torsion after being molded in the plastic shell 5. Since the nut 1 can withstand a certain pulling force by means of the setting of the clamping space 12, and can withstand a certain torsion by means of the setting of a plurality of clamping notches 13 and / or the knurled surface 21, the nut 1 can still be firmly molded in the plastic shell 5 when its upper column 30 is exposed on the upper side of the plastic shell 5; at the same time, since the bottom plate 10 and the middle column 20 have relatively large sizes, the upper column 30 can still maintain a certain structural strength when the size is relatively small. In other words, the upper column 30 of the nut 1 can be directly used as a nut boss without the need to wrap the upper column 30 with plastic, and at the same time, by means of the structural design of the nut 1 itself, the upper column 30 can have a relatively small size, thereby effectively reducing the space occupied by the nut boss; in addition, compared with the technical solution of bonding steel sheets and then riveting the nut 1, the present invention does not have the disadvantages of high cost, long manufacturing process and low reliability. In addition, when there are material notches 13 distributed on the outer wall of the bottom plate 10, since the material notches 13 have a deeper depth than the traditional knurling design, they can increase the torque-bearing capacity of the nut 1; and when the nut 1 has both the material notches 13 and the knurling surface 21, it will have a better ability to withstand torque.

[0043] In some embodiments, the device further comprises a sleeve member 6 , on which a sleeve hole 61 is formed for sleeve-mounted on the upper column portion 30 .

[0044] As a specific implementation method, the device is a laptop computer, the plastic shell 5 belongs to the screen end of the laptop computer, and the socket 6 is a shaft structure. Since the upper column 30 as a nut boss occupies less space, it is convenient to fix the socket to the screen end of the laptop computer when the space is limited, which is conducive to the ultra-narrow frame design of the laptop computer. Of course, the laptop computer here is not a laptop computer in a narrow sense, and devices with similar components to traditional laptop computers can be regarded as laptop computers; the plastic shell 5 is not necessarily the shell of the screen end; the socket 6 can also be other structural parts.

[0045] exist Figure 3 In the specific example provided, three socket holes 61 are formed on the rotating shaft structure of the laptop computer to be sleeved on three nut bosses formed on the plastic housing 5, of which two nut bosses are formed by the conventional nut 9 after being molded into the plastic housing 5. Due to space limitations, in order to achieve an ultra-narrow frame design, another nut boss is formed by the nut 1 of the present invention after being molded into the plastic housing 5, i.e., the upper column portion 30 of the nut 1 of the present invention.

[0046] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. A laptop computer, comprising a plastic housing (5) and a nut molded into the plastic housing (5), characterized in that: The nut comprises a first nut (1) and two second nuts (9), the first nut (1) comprising a bottom plate portion (10), a middle column portion (20), an upper column portion (30) connected in sequence from bottom to top, and a threaded hole (40) penetrating vertically, the middle column portion (20) being connected to the middle position of the bottom plate portion (10), the upper column portion (30) being connected to the middle position of the middle column portion (20), the bottom plate portion (10) and the middle column portion (20) being formed in the plastic shell (5), the upper column portion (30) being exposed on the upper side of the plastic shell (5), a material clamping space (12) for plastic filling being formed between the top wall of the bottom plate portion (10) and the outer wall of the middle column portion (20), the bottom plate portion (10) being provided with a plurality of material clamping notches (13) for plastic filling being distributed along its outer wall and / or the outer wall of the middle column portion (20) forming a knurled surface (21) for plastic filling; The second nut (9) is completely wrapped by plastic in its height direction, and the plastic wrapping the upper part of the second nut (9) forms an annular structure (51), and the annular structure (51) and the upper part of the second nut (9) together form a second nut boss; The plastic shell (5) belongs to the screen end of the laptop computer. The laptop computer further comprises a shaft structure (6). The shaft structure (6) is provided with a socket hole (61) which is sleeved on the second nut boss and the upper column portion (30) serving as the first nut boss.

2. The notebook computer according to claim 1, wherein: The middle column portion (20) and the upper column portion (30) are both cylindrical and coaxially arranged.

3. The notebook computer according to claim 2, wherein: The bottom plate portion (10) is in the shape of a circular plate and is coaxially arranged with the middle column portion (20) and the upper column portion (30).

4. The notebook computer according to claim 3, wherein: A plurality of the material-holding notches (13) are distributed at equal intervals along the outer wall of the bottom plate portion (10).

5. The notebook computer according to claim 1, wherein: The material clamping notch (13) is an arc-shaped notch.

6. The notebook computer according to claim 1, wherein: The bottom plate portion (10) is provided with a plurality of material retaining notches (13) distributed along its outer wall, the outer wall of the middle column portion (20) forms the knurled surface (21), and the depth of the material retaining notches (13) is greater than the depth of the knurling of the knurled surface (21).

7. The notebook computer according to claim 1, wherein: The material of the nut is sus303.

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