hexagonal nylon screw

Abstract

The utility model relates to nylon screw technical field, concretely is hexagonal nylon screw, including hexagonal screw head, the lower surface of hexagonal screw head integrative injection molding has outer thread screw rod part, the outer surface of outer thread screw rod part is provided with overflow storage groove, the upper surface of hexagonal screw head is provided with hexagonal hole, the bottom surface of hexagonal hole is provided with inclined hole, the bottom surface fixedly connected with the blocking ring in the utility model, the inclined hole can temporarily store the dust or chippings of entering hexagonal hole, avoid the bottom touch of internal hexagonal wrench not real, the dust or chippings in the blocking ring of inclined hole avoid directly entering cross hole, the setting of hexagonal screw head, hexagonal hole and cross hole make the device can select different tools and tighten, such as through outer hexagonal wrench, internal hexagonal wrench or cross screwdriver and tighten, reduce the time of finding tool of shutdown, reduce the dependence of assembly line to single tool, avoid the problem of thread slip or insufficient tightening caused by tool loss simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of nylon screw technology, specifically hexagonal nylon screws. Background Technology

[0002] With the increasing demand for lightweight, insulating, and corrosion-resistant fasteners from industries such as new energy, communications, medical, and home appliances, nylon screws have gradually replaced some metal screws. In existing technology, hexagonal nylon screws are typically injection molded from pure nylon 66, with an external hexagonal head and only a simple slotted or Phillips head at the top.

[0003] However, the tightening method is limited. The external hex head requires a socket or open-end wrench, which cannot be used when the operating space is limited. When the corresponding tools are not available on site, the machine can only be stopped and waited, which reduces assembly efficiency. In addition, some products have an internal hex hole added to the head to increase torque, but the bottom of the hole is flat, so dust and metal shavings cannot be discharged after entering, which causes the internal hex wrench to not be able to be inserted into the correct position, resulting in the risk of false tightening. Utility Model Content

[0004] The purpose of this invention is to provide hexagonal nylon screws to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Hexagonal nylon screws, including a hexagonal screw head, with an externally threaded screw shank integrally injection-molded on the lower surface of the hexagonal screw head;

[0007] An overflow storage groove is provided on the outer surface of the external thread screw shank. A hexagonal hole is provided on the upper surface of the hexagonal screw head. An oblique hole is provided on the bottom surface of the hexagonal hole. A retaining ring is fixedly connected to the bottom surface of the oblique hole. A cross hole is provided on the bottom surface of the retaining ring.

[0008] Furthermore, the lower surface of the hexagonal screw head is integrally injection molded with a circular disc, and the outer surface of the circular disc is fixedly connected with a tapered skirt.

[0009] Furthermore, the excess adhesive storage tank is used to hold excess threadlocker adhesive and form an axial locking key.

[0010] Furthermore, an annular limiting groove is provided on the lower surface of the circular disc, which is used to embed elastic washers or O-rings.

[0011] Furthermore, the lower surface of the circular disc is also provided with circumferentially distributed anti-slip grooves.

[0012] Furthermore, the angled hole is used to store impurities and ensure that the Allen wrench is fully in place.

[0013] Furthermore, the outer surface of the external thread screw shaft is integrally injection molded with a tapered contact portion.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The tapered skirt forms a secondary water-blocking line after being tightened on the external threaded screw rod. The annular limiting groove can cooperate with the O-ring seal to achieve end face sealing. The overflow adhesive storage groove allows excess thread adhesive to enter along the inclined surface of the contact part. After curing, it forms an axial locking key to prevent vibration from loosening.

[0016] 2. The angled hole can temporarily store dust or debris entering the hexagonal hole, preventing the internal hex wrench from not fully engaging. The retaining ring prevents dust or debris in the angled hole from directly entering the cross hole. The design of the hexagonal screw head, hexagonal hole, and cross hole allows the device to be tightened with different tools, such as an external hex wrench, internal hex wrench, or cross screwdriver, reducing downtime for finding tools, reducing the assembly line's reliance on a single tool, and preventing problems such as stripped threads or insufficient tightening due to missing tools. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the contact plate of this utility model;

[0019] Figure 3 This is a schematic diagram of the protective structure of this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the protective structure of this utility model.

[0021] In the diagram: 1. Hexagonal screw head; 101. External thread screw shank; 102. Glue overflow storage groove; 103. Contact part; 2. Circular disc; 201. Tapered skirt; 202. Limiting groove; 203. Anti-slip groove; 3. Hexagonal hole; 301. Angled hole; 302. Retaining ring; 303. Cross hole; 4. Workpiece one; 5. Workpiece two; 6. Sealing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4In this embodiment of the utility model, the hexagonal nylon screw includes a hexagonal screw head 1, and the lower surface of the hexagonal screw head 1 is integrally injection molded with an external thread screw shank 101.

[0024] An overflow glue storage groove 102 is provided on the outer surface of the external thread screw rod 101, a hexagonal hole 3 is provided on the upper surface of the hexagonal screw head 1, and a cross hole 303 is provided on the bottom surface of the retaining ring 302.

[0025] Specifically, the hexagonal screw head 1, the external thread screw shank 101, and the circular disc 2 are injection molded from engineering plastics. By using a tool to rotate the external thread screw shank 101 with the hexagonal screw head 1, hexagonal hole 3, or cross hole 303, the external thread screw shank 101 can be screwed into the workpiece 2 5, and the workpiece 1 4 can be fixed with the hexagonal screw head 1.

[0026] Example 1

[0027] like Figure 1-4 As shown, a circular disc 2 is integrally injection molded on the lower surface of the hexagonal screw head 1. A tapered skirt 201 is fixedly connected to the outer surface of the circular disc 2. An excess glue storage groove 102 is used to accommodate excess thread glue and form an axial locking key. An annular limiting groove 202 is opened on the lower surface of the circular disc 2. The limiting groove 202 is used to embed elastic washers or O-rings. The lower surface of the circular disc 2 is also provided with circumferentially distributed anti-slip grooves 203. A tapered contact portion 103 is integrally injection molded on the outer surface of the external thread screw shank 101.

[0028] In this embodiment, the tapered skirt 201 forms a secondary water-blocking line after the external thread screw rod 101 is tightened. The annular limiting groove 202 can cooperate with the O-ring seal 6 to achieve end face sealing. The excess glue storage groove 102 allows excess thread glue to enter along the inclined surface of the contact part 103. After curing, it forms an axial locking key to prevent vibration from loosening.

[0029] Example 2

[0030] Based on Example 1, in order to overcome the problem of the single tightening method in Example 1.

[0031] like Figure 1-4 As shown, the bottom surface of the hexagonal hole 3 has an oblique hole 301, and a retaining ring 302 is fixedly connected to the bottom surface of the oblique hole 301. The oblique hole 301 is used to store impurities and ensure that the internal hex wrench is fully in place.

[0032] In this embodiment, the oblique hole 301 can temporarily store dust or debris entering the hexagonal hole 3, preventing the internal hex wrench from not fully engaging. The blocking ring 302 prevents dust or debris in the oblique hole 301 from directly entering the cross hole 303. The design of the hexagonal screw head 1, the hexagonal hole 3, and the cross hole 303 allows the device to be tightened with different tools, such as an external hex wrench, an internal hex wrench, or a Phillips screwdriver, reducing downtime for finding tools, reducing the assembly line's dependence on a single tool, and avoiding problems such as stripped threads or insufficient tightening due to missing tools.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hexagonal nylon screw, including a hexagonal screw head (1), wherein the lower surface of the hexagonal screw head (1) is integrally injection molded with an externally threaded screw shank (101); Its features are, The outer surface of the external threaded screw rod (101) is provided with an overflow glue storage groove (102), the upper surface of the hexagonal screw head (1) is provided with a hexagonal hole (3), the bottom surface of the hexagonal hole (3) is provided with an oblique hole (301), the bottom surface of the oblique hole (301) is fixedly connected with a blocking ring (302), and the bottom surface of the blocking ring (302) is provided with a cross hole (303).

2. The hexagonal nylon screw according to claim 1, characterized in that, The lower surface of the hexagonal screw head (1) is integrally injection molded with a circular disc (2), and the outer surface of the circular disc (2) is fixedly connected with a tapered skirt (201).

3. The hexagonal nylon screw according to claim 1, characterized in that, The overflow glue storage tank (102) is used to hold excess threadlocker glue and form an axial locking key.

4. The hexagonal nylon screw according to claim 2, characterized in that, The lower surface of the circular disk (2) is provided with an annular limiting groove (202), which is used to embed elastic washers or O-rings.

5. The hexagonal nylon screw according to claim 2, characterized in that, The lower surface of the circular disk (2) is also provided with circumferentially distributed anti-slip grooves (203).

6. The hexagonal nylon screw according to claim 1, characterized in that, The oblique hole (301) is used to store impurities and ensure that the internal hex wrench is fully in place.

7. The hexagonal nylon screw according to claim 1, characterized in that, The outer surface of the external threaded screw rod (101) is integrally injection molded with a tapered contact portion (103).

Images