Wear-resistant and anti-falling stainless steel screw

Abstract

The stainless steel screw comprises a screw rod part and a screw head part, an inner groove is formed in the screw head part, a capsule is placed in the inner groove, glue is contained in the capsule, and a plurality of first through holes are formed in the inner bottom of the inner groove in a circular distribution mode at equal intervals in a penetrating mode. A plurality of puncturing mechanisms used for puncturing capsules to enable glue to flow out are arranged on the side, close to the screw rod part, of the screw head part, a first glue flowing channel is formed in the screw rod part, and a plurality of second glue flowing channels are evenly formed in the inner side wall of the first glue flowing channel in a penetrating mode. According to the stainless steel screw, when the stainless steel screw is installed in a screw hole of a connected piece, the screw rod part and the screw head part are further bonded in a mode of injecting glue, so that the connection firmness between the stainless steel screw and the connected piece can be enhanced, and the anti-falling effect is achieved; the defect that in the prior art, a stainless steel screw is prone to loosening and falling off is overcome.

Description

A type of wear-resistant and non-loosening stainless steel screw Technical Field

[0001] This utility model relates to the technical field of metal products, specifically a wear-resistant and non-detachable stainless steel screw. Background Technology

[0002] Stainless steel screws are threaded fasteners made from stainless steel materials (such as 304, 316, 316L, etc.) through processes such as cold heading, hot forging, and machining. They are widely used in machinery, construction, chemical, electronics, shipbuilding, and other fields. Their core advantages lie in their corrosion resistance, high strength, and aesthetic appeal. Due to their corrosion resistance, high strength, and environmental friendliness, stainless steel screws have become an indispensable fastener in modern industry.

[0003] For example, the existing publication number CN220151695U discloses a stainless steel screw with good anti-breakage effect, including a screw body. The surface of the screw body is provided with a protective layer. The protective layer includes an adhesive layer, a reinforcing layer, a heat insulation layer, a waterproof layer, a corrosion-resistant layer, and a wear-resistant layer. A reinforcing layer is provided on one side of the adhesive layer. A heat insulation layer is provided on top of the reinforcing layer. A waterproof layer is provided on top of the heat insulation layer. A corrosion-resistant layer is provided on top of the waterproof layer. By designing the heat insulation layer, the high-temperature resistance of the screw body is improved, thereby preventing deformation of the screw body. By designing the corrosion-resistant layer, the corrosion resistance of the screw body is improved. By designing the wear-resistant layer, the wear resistance of the screw body is improved. By designing the adhesive layer to be made of aluminum powder, the adhesion of the screw body surface is improved, preventing the protective layer from falling off, thereby achieving a long service life.

[0004] However, the following problems were found in the implementation of the relevant technology: the stainless steel screw structure is too simple and has a single function. When the connection between the stainless steel screw and the connected part vibrates due to external force, many small lateral displacements will occur between the screw and the screw hole, which can easily lead to relative movement between the screw and the screw hole. After long-term use, the screw will easily become loose and fall off. Summary of the Invention

[0005] To address the shortcomings of existing stainless steel screws that are prone to loosening and falling off, this utility model provides a wear-resistant and non-loosening stainless steel screw.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] This utility model discloses a wear-resistant and anti-loosening stainless steel screw, comprising a screw shank and a screw head, which are fixedly connected. An inner groove is formed inside the screw head, and a capsule containing glue is placed inside the inner groove. Several first through holes are evenly spaced and distributed in a circular pattern on the bottom of the inner groove. Several puncture mechanisms are provided on the side of the screw head near the screw shank to puncture the capsule and allow the glue to flow out. A second through hole is formed in the middle of the bottom of the inner groove. A first glue-flowing channel is formed inside the screw shank and is connected to the second through hole. Several second glue-flowing channels are evenly distributed through the inner wall of the first glue-flowing channel, and all of the second glue-flowing channels extend to the outer surface of the screw shank.

[0008] As a preferred technical solution of this utility model, a glue-flowing groove is provided inside the screw rod, the glue-flowing groove is connected to the first glue-flowing channel, and the glue-flowing groove is located at the end of the first glue-flowing channel away from the screw head. A plurality of third through holes are uniformly opened through the bottom of the glue-flowing groove.

[0009] As a preferred embodiment of this invention, the adhesive flow channel has a circular structure.

[0010] As a preferred embodiment of the present invention, the piercing mechanism includes a groove, which is formed on the bottom of the inner groove. A connecting rod is slidably disposed on the bottom of the groove. A needle is fixedly connected to the upper end of the connecting rod, and the needle is located in the groove. The lower end of the connecting rod extends to the outside of the screw head.

[0011] As a preferred technical solution of this utility model, the lower end of the connecting rod is fixedly connected to a limiting plate, and the outer surface of the screw head is provided with a slot.

[0012] As a preferred embodiment of this utility model, the limiting plate is a circular structure, the slot is a circular groove, and the limiting plate is adapted to the slot.

[0013] In a preferred embodiment of this invention, the needle has a conical structure, and the diameter of the circular surface of the needle is larger than the diameter of the connecting rod.

[0014] The beneficial effects of this utility model are:

[0015] This type of wear-resistant and anti-loosening stainless steel screw, when installed into the screw hole of the connected component, allows the screw head to fully adhere to the surface of the connected component. Several puncturing mechanisms puncture the capsule, causing the internal adhesive to flow out. The adhesive automatically flows into the inner groove. Firstly, the adhesive in the inner groove flows through several first through-holes to the surface of the screw head that contacts the connected component, thus bonding the screw head to the surface of the connected component. Secondly, the adhesive in the inner groove also flows through second through-holes into the first adhesive flow channel. The adhesive in the primary adhesive channel flows through several secondary adhesive channels to the inner wall of the screw hole of the connected component, thereby bonding the screw shank to the inner wall of the screw hole. Therefore, by injecting adhesive when the stainless steel screw is installed into the screw hole of the connected component, the connection between the stainless steel screw and the connected component is strengthened, preventing the screw from loosening and falling off. This achieves the effect of preventing loosening and solves the defect of stainless steel screws in the prior art that are prone to loosening and falling off. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of a wear-resistant and anti-loosening stainless steel screw according to this utility model;

[0018] Figure 2 is a top view of the structure of a wear-resistant and anti-loosening stainless steel screw according to this utility model;

[0019] Figure 3 is a cross-sectional view of the structure of a wear-resistant and anti-loosening stainless steel screw according to this utility model;

[0020] Figure 4 is a schematic diagram of the internal structure of the screw head of a wear-resistant and anti-loosening stainless steel screw according to this utility model.

[0021] Figure 5 is a schematic diagram of the internal structure of the inner groove of a wear-resistant and anti-loosening stainless steel screw according to this utility model.

[0022] Figure 6 is a schematic diagram of the piercing mechanism of a wear-resistant and anti-loosening stainless steel screw according to this utility model.

[0023] Figure 7 is a partial structural schematic diagram of the piercing mechanism of a wear-resistant and anti-loosening stainless steel screw according to this utility model.

[0024] Figure 8 is a schematic diagram of the structure of a wear-resistant and non-detachable stainless steel screw of this utility model when the capsule is punctured.

[0025] In the diagram: 1. Screw rod; 2. Screw head; 3. Inner groove; 4. Capsule; 5. Glue; 6. First through hole; 7. Puncture mechanism; 71. Groove; 72. Slot; 73. Connecting rod; 74. Limiting plate; 75. Puncture needle; 8. Second through hole; 9. First glue flow channel; 10. Second glue flow channel; 11. Glue flow groove; 12. Third through hole. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0027] Example: As shown in Figures 1, 2, 3, 4, 5, 6, 7, and 8, this utility model discloses a wear-resistant and anti-loosening stainless steel screw, comprising a screw shank 1 and a screw head 2, which are fixedly connected. The screw head 2 has an inner groove 3 inside, and a capsule 4 is placed inside the inner groove 3. The capsule 4 is filled with glue 5. Several first through holes 6 are evenly spaced and distributed in a circular pattern on the bottom of the inner groove 3. Several puncturing mechanisms 7 are provided on the side of the screw head 2 near the screw shank 1 to puncture the capsule 4 and allow the glue 5 to flow out. A second through hole 8 is provided in the middle of the bottom of the inner groove 3. A first glue flow channel 9 is provided inside the screw shank 1, and the first glue flow channel 9 is connected to the second through hole 8. Several second glue flow channels 10 are evenly distributed through the inner wall of the first glue flow channel 9, and all of the second glue flow channels 10 extend to the outer surface of the screw shank 1.

[0028] In use, when the stainless steel screw is inserted into the screw hole of the connected part, and the screw head 2 is completely in contact with the surface of the connected part, several puncturing mechanisms 7 can puncture the capsule 4, causing the glue 5 inside to flow out. The glue 5 will automatically flow into the inner groove 3. On one hand, the glue 5 in the inner groove 3 will flow through several first through holes 6 to the surface of the screw head 2 in contact with the connected part, thereby bonding the screw head 2 to the surface of the connected part. On the other hand, the glue 5 in the inner groove 3 will also flow through the second through hole 8 into the first glue flow channel 9. The glue 5 in the glue flow channel 9 will flow through several second glue flow channels 10 to the inner wall of the screw hole of the connected part, thereby bonding the screw shank 1 to the inner wall of the screw hole. Therefore, by injecting glue 5 when the stainless steel screw is installed into the screw hole of the connected part, the screw shank 1 and the screw head 2 are further bonded, thereby enhancing the connection between the stainless steel screw and the connected part, preventing the screw from loosening and falling off, achieving the effect of preventing falling off, and solving the defect of stainless steel screws being prone to loosening and falling off in the prior art.

[0029] The screw rod 1 has a glue flow groove 11 inside. The glue flow groove 11 has a circular structure and is connected to the first glue flow channel 9. The glue flow groove 11 is located at the end of the first glue flow channel 9 away from the screw head 2. Several third through holes 12 are evenly opened through the bottom of the glue flow groove 11.

[0030] With the setting of the glue flow groove 11 and several third through holes 12, a portion of the glue 5 in the first glue flow channel 9 will also flow into the glue flow groove 11. The glue 5 in the glue flow groove 11 will flow through several third through holes 12 to the inner bottom of the screw hole of the connected part, thereby bonding the bottom end of the screw rod 1 to the inner bottom surface of the screw hole, thereby further improving the connection stability between the stainless steel screw and the connected part, and further playing the role of preventing detachment.

[0031] The piercing mechanism 7 includes a groove 71, which is located at the bottom of the inner groove 3. A connecting rod 73 is slidably disposed at the bottom of the groove 71. A needle 75 is fixedly connected to the upper end of the connecting rod 73, and the needle 75 is located in the groove 71. The lower end of the connecting rod 73 extends to the outside of the screw head 2.

[0032] The lower end of the connecting rod 73 is fixedly connected to the limiting plate 74. The outer surface of the screw head 2 is provided with a slot 72. The limiting plate 74 is a circular structure, the slot 72 is a circular groove, and the limiting plate 74 and the slot 72 are adapted to each other.

[0033] The needle 75 has a conical structure, and the diameter of the circular surface of the needle 75 is larger than the diameter of the connecting rod 73. By adopting the conical structure of the needle 75, it is possible to ensure that the opening pierced by the needle 75 on the capsule 4 is larger than the diameter of the connecting rod 73, thus ensuring that the glue 5 inside the capsule 4 can flow out fully.

[0034] When the stainless steel screw is inserted into the screw hole of the connected part, when the screw head 2 is completely in contact with the surface of the connected part, it will squeeze the limiting plate 74. The limiting plate 74 will drive the connecting rod 73 and the piercing needle 75 to move, so that the piercing needle 75 will pierce the capsule 4. The limiting plate 74 will directly lock into the slot 72, and the glue 5 inside the capsule 4 will automatically flow out into the inner groove 3.

[0035] During operation, when the stainless steel screw is inserted into the screw hole of the connected part, and the screw head 2 is fully in contact with the surface of the connected part, it will compress the limiting plate 74. The limiting plate 74 will drive the connecting rod 73 and the piercing needle 75 to move, causing the piercing needle 75 to puncture the capsule 4. The limiting plate 74 will then directly engage with the slot 72, and the glue 5 inside the capsule 4 will automatically flow out into the inner groove 3. On one hand, the glue 5 in the inner groove 3 will flow through several first through holes 6 to the surface where the screw head 2 contacts the connected part, thereby bonding the screw head 2 to the surface of the connected part. On the other hand, the glue 5 in the inner groove 3 will also flow into the first glue channel 9 through the second through hole 8. The glue 5 in the first glue channel 9 will then flow into the inner wall of the screw hole of the connected part through several second glue channels 10, thereby bonding the screw shank 1 to the inner wall of the screw hole. Therefore, by injecting glue 5 when the stainless steel screw is installed into the screw hole of the connected part, the connection between the stainless steel screw and the connected part can be strengthened, and the loosening and falling off of the screw can be avoided, thus achieving the effect of preventing the screw from falling off.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wear-resistant and anti-loosening stainless steel screw, comprising a screw shank (1) and a screw head (2), wherein the screw shank (1) and the screw head (2) are fixedly connected, characterized in that, The screw head (2) has an inner groove (3) inside, and a capsule (4) is placed inside the inner groove (3). The capsule (4) is filled with glue (5). Several first through holes (6) are evenly spaced and distributed in a circular pattern on the bottom of the inner groove (3). Several piercing mechanisms (7) are provided on the side of the screw head (2) near the screw rod (1) to puncture the capsule (4) and make the glue (5) flow out. A second through hole (8) is opened through the middle of the bottom of the inner groove (3). A first glue flow channel (9) is opened inside the screw rod (1), and the first glue flow channel (9) is connected to the second through hole (8). Several second glue flow channels (10) are evenly opened through the inner sidewall of the first glue flow channel (9), and several second glue flow channels (10) extend to the outer surface of the screw rod (1).

2. The wear-resistant and anti-loosening stainless steel screw according to claim 1, characterized in that, The screw rod (1) has a glue flow groove (11) inside. The glue flow groove (11) is connected to the first glue flow channel (9). The glue flow groove (11) is located at the end of the first glue flow channel (9) away from the screw head (2). Several third through holes (12) are evenly opened through the bottom of the glue flow groove (11).

3. The wear-resistant and anti-loosening stainless steel screw according to claim 2, characterized in that, The glue dispensing channel (11) has a circular structure.

4. The wear-resistant and anti-loosening stainless steel screw according to claim 1, characterized in that, The piercing mechanism (7) includes a groove (71) which is formed at the bottom of the inner groove (3). A connecting rod (73) is slidably arranged at the bottom of the groove (71). A needle (75) is fixedly connected to the upper end of the connecting rod (73), and the needle (75) is located in the groove (71). The lower end of the connecting rod (73) extends to the outside of the screw head (2).

5. The wear-resistant and anti-loosening stainless steel screw according to claim 4, characterized in that, The lower end of the connecting rod (73) is fixedly connected to a limiting plate (74), and a slot (72) is provided on the outer surface of the screw head (2).

6. The wear-resistant and anti-loosening stainless steel screw according to claim 5, characterized in that, The limiting plate (74) has a circular structure, the slot (72) is a circular groove, and the limiting plate (74) is adapted to the slot (72).

7. A wear-resistant and anti-loosening stainless steel screw according to claim 4, characterized in that, The needle (75) has a conical structure, and the diameter of the circular surface of the needle (75) is larger than the diameter of the connecting rod (73).

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