Screw assembly and manufacturing method thereof

Abstract

The invention relates to a screw assembly and a manufacturing method, the screw assembly comprises a first screw head and a first screw rod, a first external thread is arranged outside the first screw rod, a tapping groove is formed in the first screw rod, and an internal thread is arranged in the circumferential direction of the tapping groove; the second screw comprises a second screw head and a second screw rod, a second external thread is arranged outside the second screw rod, the second screw rod is inserted into the tapping groove of the first screw rod, and the second external thread is matched with the internal thread; the second screw head and the second external thread are both made of nylon materials. The screw assembly is compact in structure, in the process of fixing through the screw assembly, the second screw head is attached to the surface of a fixed object, and the second screw head made of nylon effectively prevents the surface of the fixed object from being knocked and depainted and plays a role in protecting the surface of the fixed object, so that the requirements of users are better met.

Description

Technical Field

[0001] The present application relates to the technical field of screws, and in particular to a screw assembly and a manufacturing method thereof. Background Art

[0002] Screws are a tool that uses the physics and mathematical principles of the circular rotation of an object's inclined surface and friction to gradually fasten objects and parts. They are an indispensable industrial necessity in daily life. At present, most screws are made of iron and are relatively hard. During installation and use, they are easy to cause paint loss and damage on the surface of the fixed object, which has certain usage defects. Summary of the invention

[0003] In view of this, the present application proposes a screw assembly and a manufacturing method thereof to solve the above problems.

[0004] According to one aspect of the present application, a screw assembly is provided, comprising: a first screw, comprising a first screw head and a first screw rod, wherein the first screw rod is provided with a first external thread on the outside, a tapping groove is provided on the inside of the first screw rod, and the tapping groove is provided with an internal thread circumferentially; a second screw, comprising a second screw head and a second screw rod, the second screw rod is provided with a second external thread on the outside, the second screw rod is inserted into the tapping groove of the first screw rod, and the second external thread matches the internal thread; wherein the second screw head and the second external thread are both made of nylon.

[0005] In a possible implementation, the second screw head is close to one side of the first screw head and fits with an end of the first screw rod facing away from the first screw head, and the first screw rod and the second screw rod have the same length.

[0006] In a possible implementation manner, the first screw head and the second screw head are respectively provided with an M5 inner hexagonal slot and an M2 inner hexagonal slot on a side facing away from the first screw rod.

[0007] In a possible implementation manner, a diameter of the second screw head is the same as an outer diameter of the first external thread.

[0008] In a possible implementation manner, the first screw is made of iron.

[0009] According to another aspect of the present application, a method for manufacturing a screw assembly is provided, which is used to manufacture any of the screw assemblies described above, and comprises the following steps:

[0010] Preset the internal thread size and the first external thread size of the first screw, perform tapping on the first screw, and determine the tapping groove;

[0011] The second screw is processed according to a preset second external thread size, and the processed second screw is drilled into the tapping groove of the first screw, and the drilling is stopped when one side of the second screw head is in contact with one end of the first screw rod, to obtain a screw assembly;

[0012] Wherein, the second screw is made of nylon.

[0013] In a possible implementation, after presetting the internal thread size and the first external thread size of the first screw, tapping the first screw and determining the tapping groove include:

[0014] Presetting the internal thread size and the first external thread size of the first screw respectively;

[0015] Processing the exterior of the first screw rod of the first screw according to the first external thread size to obtain a first external thread;

[0016] The inside of the first screw is tapped from one end to the other end according to the internal thread size to determine the tapping groove size and the internal thread.

[0017] In a possible implementation, an M5 hexagon socket groove is provided on a side of the first screw head facing away from the first screw rod.

[0018] In a possible implementation, an M2 hexagon socket groove is further provided on a side of the second screw head facing away from the first screw rod.

[0019] In a possible implementation, the internal thread size is an inner diameter of 3 mm and a length of 6 mm; the first external thread size is a first outer diameter of 6 mm and a length of 6 mm; the second external thread size is a second outer diameter of 3 mm and a length of 6 mm.

[0020] Beneficial effects of this application:

[0021] 1. The screw assembly of the present application includes a first screw and a second screw, wherein the second screw is made of nylon material to effectively improve the surface hardness of the screw assembly as a whole. Therefore, when the screw assembly of the present application is used to fix the fixed object, the second screw made of nylon material can protect the surface of the fixed object, prevent the surface of the fixed object from being scratched by the hard material screw, and better meet the use needs of the user. Further, the first screw of the present application includes a first screw head and a first screw rod, the first screw rod is provided with a first external thread on the outside, the first screw rod is provided with a tapping groove on the inside, and the tapping groove is provided with an internal thread in the circumferential direction. It should be noted that the first external thread and the internal thread of the tapping groove both play the role of positioning, limiting and guiding. Further, the second screw includes a second screw head and a second screw rod, the second screw rod is provided with a second external thread on the outside, the second screw rod is inserted in the tapping groove of the first screw rod, and the second external thread matches the internal thread. That is, by inserting the second screw rod in the tapping groove, and using the second external thread and the internal thread to match, the first screw and the second screw are tightly connected, thereby forming a compact screw assembly. It should be noted that the second screw head and the second external thread are both made of nylon. During the fixing process using the screw assembly, the second screw made of nylon is fitted against the surface of the fixed object to prevent scratches and paint peeling on the surface of the fixed object.

[0022] 2. The present application provides a method for manufacturing a screw assembly, which reduces the replacement of fixed objects and reduces costs. According to the preset internal thread size, first external thread size and second external thread size of the first screw, the first screw and the second screw are processed respectively, and the processed second screw is drilled into the tapping groove of the first screw, and the drilling is stopped when the second screw head is in contact with one end of the first screw rod, so as to obtain a screw assembly, wherein the second screw is made of nylon. The nylon screw can be loosened and tightened, which effectively improves the installation stability of the screw and prevents the nylon screw from falling off due to external force. At the same time, it can also play a role of limiting and guiding, so that the nylon screw can be vertically drilled into the iron screw, effectively preventing skewness, stuck and the like. A screw rod is arranged below the nylon screw head, and a thread is arranged on the screw rod, which plays a role of positioning, limiting and guiding. The manufacturing method adopted in the present application not only makes the screw assembly form an integrated screw with a compact structure, but also forms two screw surfaces with different hardnesses, which better meets the requirements of users when fixing the screws.

[0023] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and, together with the description, serve to explain the principles of the present application.

[0025] Figure 1 A front view structural diagram showing the entire screw assembly of an embodiment of the present application;

[0026] Figure 2 A front view of a first screw and a second screw in a screw assembly according to an embodiment of the present application is shown;

[0027] Figure 3 Shows the dimension diagram of the first screw and the second screw in the screw assembly and the combined installation view in a specific embodiment;

[0028] Figure 4 A view showing a screw assembly according to a specific embodiment of the present application installed on a surface of a fixed object;

[0029] Figure 5 A cross-sectional schematic diagram of a screw assembly according to an embodiment of the present application is shown;

[0030] Figure 6 A flow chart showing a method for manufacturing a screw assembly according to an embodiment of the present application. DETAILED DESCRIPTION

[0031] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0032] Among them, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "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 application or simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0035] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0036] Figure 1 A front view structural diagram showing the entire screw assembly of an embodiment of the present application; Figure 2 A front view of a first screw and a second screw in a screw assembly according to an embodiment of the present application is shown; Figure 3 The dimensions of the first screw and the second screw in the screw assembly of the specific embodiment of the present application and the combined installation view are shown; Figure 4 A view showing a screw assembly according to a specific embodiment of the present application installed on a surface of a fixed object; Figure 5 A cross-sectional schematic diagram of a screw assembly according to an embodiment of the present application is shown; Figure 6 A flow chart showing a method for manufacturing a screw assembly according to an embodiment of the present application.

[0037] like Figure 1 , Figure 2 and Figure 5 As shown, the first aspect of the present application provides a screw assembly, comprising:

[0038] The first screw 100 includes a first screw head 110 and a first screw rod 120, wherein the first screw rod 120 is provided with a first external thread 130 on the outside, the first screw rod 120 is provided with a tapping groove 140 on the inside, and the tapping groove 140 is provided with an internal thread 150 in the circumferential direction;

[0039] The second screw 200 includes a second screw head 210 and a second screw rod 220. The second screw rod 220 is provided with a second external thread 230. The second screw rod 220 is inserted into the tapping groove 140 of the first screw rod 120, and the second external thread 230 matches the internal thread 150.

[0040] Wherein, the second screw head 210 and the second external thread 230 are both made of nylon.

[0041] Here, it should be noted that the screw assembly of the present application includes a first screw 100 and a second screw 200, that is, the screw assembly is more diversified, wherein the second screw 200 is set to be a nylon material to effectively improve the surface hardness of the screw assembly as a whole. Therefore, when the screw assembly of the present application is used to fix the fixed object, the second screw made of nylon can protect the surface of the fixed object, prevent the surface of the fixed object from being scratched by the hard material screw, and better meet the user's use needs. Further, the first screw 100 of the present application includes a first screw head 110 and a first screw rod 120, the first screw rod 120 is provided with a first external thread 130 on the outside, the first screw rod 120 is provided with a tapping groove 140 on the inside, and the tapping groove 140 is provided with an internal thread 150 circumferentially. It should be noted that the first external thread 130 and the internal thread 150 of the tapping groove 140 both play the role of positioning, limiting and guiding. Furthermore, the second screw 200 includes a second screw head 210 and a second screw rod 220, and a second external thread 230 is provided on the outside of the second screw rod 220. The second screw rod 220 is inserted into the tapping groove 140 of the first screw rod 120, and the second external thread 230 matches the internal thread 150. That is, by inserting the second screw rod 220 into the tapping groove 140, and matching the second external thread 230 with the internal thread 150, the first screw 100 and the second screw 200 are tightly connected, thereby forming a screw assembly with a compact structure. It should be particularly noted that the second screw head 210 and the second external thread 230 are both made of nylon, that is, the material of the second screw 200 is nylon. In the process of fixing with the screw assembly, the second screw 200 made of nylon is fitted to the surface of the fixed object, thereby preventing the surface of the fixed object from being scratched or peeling.

[0042] In a possible implementation, the second screw head 210 is close to the first screw head 110 and fits with the end of the first screw rod 120 that is away from the first screw head 110, and the first screw rod 120 and the second screw rod 220 have the same length. Specifically, the second screw rod 220 is integrally inserted into the tapping groove 140 inside the first screw rod 120, that is, the second screw head 210 is close to the second screw rod 220 and fits with the side of the first screw rod 120 that is away from the first screw head 110, forming a screw assembly with a compact structure.

[0043] In a possible implementation, the first screw head 110 and the second screw head 210 are respectively provided with an M5 hexagon socket 160 and an M2 hexagon socket 240 on the side facing away from the first screw rod 120. Specifically, the first screw head 110 is made of iron, and the M5 hexagon socket 160 provided on its surface allows the screw to be tightened twice, thereby improving the installation stability of the first screw 100 and preventing the iron first screw 100 from falling off due to external force. At the same time, it can also play a role of limiting and guiding, so that the screw assembly is not prone to skewing or getting stuck when drilling into an object, ensuring a more convenient installation process. It should also be noted that the M2 hexagonal groove 240 set on the side of the second screw head 210 away from the second screw rod 220 also plays a role of limiting and guiding, and can also make the second screw made of nylon material loosen or tighten, thereby improving the installation stability of the screw and preventing the nylon screw from falling off due to external force. In the process of the second screw 200 made of nylon material vertically drilling into the first screw 100, the second screw is prevented from being skewed or stuck, thereby improving the efficiency of the overall combined installation of the screw assembly.

[0044] In a possible implementation, the diameter of the second screw head 210 is the same as the outer diameter of the first external thread 130. Specifically, by setting the diameter of the second screw head 210 to be the same as the outer diameter of the first external thread 130 disposed outside the first screw rod, the screw assembly as a whole is more compact. Figure 4 As shown, in the process of fixing the fixed object, the screw assembly passes through the through hole on the outside of the fixed object, so that the second screw head 210 is away from the end of the screw rod and fits with the surface of the fixed object, and the screw assembly is screwed using the M5 hexagonal socket slot provided by the first screw head 110, so that the first external thread 130 is fastened inside the through hole, thereby fixing the fixed object. The second screw head 210 of the second screw 200 is made of nylon material, and when it fits with the surface of the fixed object, it will not cause paint peeling on the surface of the fixed object, thereby protecting the surface of the fixed object. At the same time, the nylon material is not easy to rust, which effectively delays the service life of the screw assembly and saves maintenance costs.

[0045] In a possible implementation, the material of the first screw 100 is iron. Iron screws have high mechanical strength and meet the user's requirements for screw strength. It should be noted that, as shown in the figure, in the screw assembly of the present application, the outer diameter of the first external thread 130 is preferably 6mm, and the length of the first screw rod 120 is preferably 6mm, and the size of the internal thread 150 is preferably 3mm. Furthermore, the outer diameter of the second external thread 230 is preferably 3mm, which matches the size of the internal thread 150, and the length of the second screw rod 220 is 6mm. It should also be noted that the thickness of the second screw head 210 is preferably 4mm, and the outer diameter of the second screw head 210 is preferably 6mm, so that the screw assembly of the present application is compact and better meets the user's use needs.

[0046] like Figure 6 As shown, another aspect of the present application provides a method for manufacturing a screw assembly, which is used to manufacture any of the above-mentioned screw assemblies, comprising the following steps:

[0047] S100, presetting the size of the internal thread 150 and the first external thread 130 of the first screw 100, tapping the first screw 100, and determining the tapping groove 140;

[0048] S200, processing the second screw 200 according to the preset size of the second external thread 230;

[0049] S300, drilling the processed second screw 200 into the tapping groove 140 of the first screw 100, and stopping the drilling when one side of the second screw head 210 is in contact with one end of the first screw rod 120, to obtain a screw assembly;

[0050] Wherein, the second screw 200 is made of nylon.

[0051] The present application processes the first screw 100 and the second screw 200 according to the preset size of the internal thread 150 of the first screw 100, the size of the first external thread 130 and the size of the second external thread 230, and drills the processed second screw 200 from the tapping groove 140 of the first screw 100, and stops drilling when one side of the second screw head 210 fits with one end of the first screw rod 120, thereby obtaining a screw assembly, wherein the second screw 200 is made of nylon. Nylon screws can be loosened and tightened, which effectively improves the installation stability of the screws, and also plays a role of limiting and guiding, so that the nylon screws can be drilled vertically into the iron screws, making the installation of the screws more convenient. The manufacturing method adopted in the present application enables the screw assembly to form a compact integrated screw. In view of the user's requirements for the performance of the screws, the present application forms two screw surfaces of different hardness during manufacturing, which can better achieve the purpose of protecting the surface of the fixed object by the screws during the installation process.

[0052] In a possible implementation, after the size of the internal thread 150 and the size of the first external thread 130 of the first screw 100 are preset, the first screw 100 is tapped to determine the tapping groove 140, including:

[0053] The size of the internal thread 150 of the first screw 100 and the size of the first external thread 130 are respectively preset;

[0054] Processing the exterior of the first screw rod 120 of the first screw 100 according to the size of the first external thread 130 to obtain the first external thread 130;

[0055] The first screw rod 120 is tapped from one end to the other end according to the size of the internal thread 150 to determine the size of the tapping groove 140 and the internal thread 150. The first external thread 130 and the internal thread 150 provided inside the tapping groove 140 play the role of positioning, limiting and guiding, so that the first screw 100 and the second screw 200 are tightly connected.

[0056] In a possible implementation, an M5 hexagon socket 160 is provided on the side of the first screw head 110 away from the first screw rod 120. This allows the screw to be tightened twice, effectively improving the installation stability of the screw, and also plays a role of limiting and guiding, so that the second screw 200 can be drilled vertically into the object, effectively preventing skewing and jamming, making the installation of the screw more convenient.

[0057] In a possible implementation, an M2 hexagon socket 240 is provided on the side of the second screw head 210 away from the first screw rod 120. It should be noted that the second screw head 210 has a thickness of 4 mm and a width of 6 mm. Nylon screws have relatively good toughness and can avoid falling off due to external forces, thereby making the screw structure firm and stable during installation.

[0058] In one possible implementation, the internal thread 150 has an inner diameter of 3 mm and a length of 6 mm; the first external thread 130 has a first outer diameter of 6 mm and a length of 6 mm; the second external thread 230 has an outer diameter of 3 mm and a length of 6 mm, making the overall structure of the manufactured screw assembly more compact.

[0059] It should be noted that, although the screw assembly and the manufacturing method of the present application are introduced as an example as above, those skilled in the art will understand that the present application should not be limited to this. In fact, the user can flexibly set it according to personal preferences and / or actual application scenarios, as long as it is reasonable. Without departing from the scope and spirit of the various embodiments described, many modifications and changes are obvious to those of ordinary skill in the art. The choice of terms used in this article is intended to best explain the principles of the various embodiments, practical applications or improvements to the technology in the market, or to enable other ordinary technicians in the technical field to understand the various embodiments disclosed herein.

Claims

1. A screw assembly, characterized in that: include: A first screw, comprising a first screw head and a first screw rod, wherein the first screw rod is provided with a first external thread on the outside, a tapping groove is provided on the inside of the first screw rod, and the tapping groove is provided with an internal thread in a circumferential direction; A second screw, comprising a second screw head and a second screw rod, wherein the second screw rod is provided with a second external thread on the outside, the second screw rod is inserted into the tapping groove of the first screw rod, and the second external thread matches the internal thread; Wherein, the second screw head and the second external thread are both made of nylon.

2. The screw assembly according to claim 1, characterized in that: The second screw head is close to one side of the first screw head and fits with the end of the first screw rod facing away from the first screw head, and the first screw rod and the second screw rod have the same length.

3. The screw assembly according to claim 1, characterized in that: The first screw head and the second screw head are respectively provided with an M5 inner hexagonal slot and an M2 inner hexagonal slot on a side facing away from the first screw rod.

4. The screw assembly according to claim 1, characterized in that: The diameter of the second screw head is the same as the outer diameter of the first external thread.

5. The screw assembly according to any one of claims 1 to 4, characterized in that: The first screw is made of iron.

6. A method for manufacturing a screw assembly, used for manufacturing the screw assembly according to any one of claims 1 to 5, characterized in that: The steps include: Preset the internal thread size and the first external thread size of the first screw, perform tapping on the first screw, and determine the tapping groove; The second screw is processed according to a preset second external thread size, and the processed second screw is drilled into the tapping groove of the first screw, and the drilling is stopped when one side of the second screw head is in contact with one end of the first screw rod, to obtain a screw assembly; Wherein, the second screw is made of nylon.

7. The manufacturing method according to claim 6, characterized in that: When the internal thread size and the first external thread size of the first screw are preset, the first screw is tapped, and the tapping groove is determined, the method includes: Presetting the internal thread size and the first external thread size of the first screw respectively; Processing the exterior of the first screw rod of the first screw according to the first external thread size to obtain a first external thread; The inside of the first screw is tapped from one end to the other end according to the internal thread size to determine the tapping groove size and the internal thread.

8. The manufacturing method according to claim 6, characterized in that: The method also includes providing an M5 hexagon socket groove on a side of the first screw head facing away from the first screw rod.

9. The manufacturing method according to claim 6, characterized in that: The method also includes providing an M2 inner hexagonal groove on a side of the second screw head facing away from the first screw rod.

10. The manufacturing method according to claim 6, characterized in that: The internal thread size is 3mm inner diameter and 6mm length; the first external thread size is 6mm first outer diameter and 6mm length; the second external thread size is 3mm second outer diameter and 6mm length.

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