Non-detachable fastening screw capable of being automatically locked

Abstract

The utility model relates to a non-detachable fastening screw capable of being automatically locked, which comprises a screw rod and a screw cap, the screw rod is connected with the screw cap, the screw rod comprises an upper part, a lower part and an external thread, and the lower part is fixedly connected with the screw cap through the upper part; the lower part is provided with a middle groove, the lower part is further provided with a glue storage part and a damage part, the glue storage part is located in the middle groove, and the damage part is movably connected with the lower part; the glue storage part corresponds to the damage part in position; the first part is separated from the second part; the glue storage piece is located between the first part and the second part, the damage part is movably connected with the first part and the second part, and the damage part and the glue storage piece are located on the same straight line. The utility model provides a non-detachable fastening screw capable of being automatically locked, so that the screw is kept in stable connection with a mounting hole thread, the screw is prevented from falling off due to vibration force for a long time, the screw is prevented from being touched by external force, and good stability of screw connection is ensured.

Description

Technical Field

[0001] The utility model relates to the field of fastening screws, in particular to a non-detachable fastening screw which can be automatically locked. Background Art

[0002] Fasteners are a type of connector commonly used in industrial production, used to stably connect two separate parts together; fasteners include rivets, keys, pins, screws, etc., among which screws are the most commonly used fasteners; screws include nuts and screw rods. When screws are used in a vibrating environment, they are prone to loosen and fall off automatically after long-term use.

[0003] The commonly used method to prevent screws from falling off is to add spring washers when using screws. However, after long-term use, the elasticity of the spring washers decreases and the screws may still fall off automatically. During long-term use, the screws are also easily loosened due to external contact. There is an urgent need to solve these problems. Utility Model Content

[0004] The purpose of the utility model is to provide a non-detachable fastening screw which can be automatically locked to solve the above problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An automatically locked non-detachable fastening screw, comprising a screw and a nut, wherein the screw is connected to the nut, the screw comprises an upper part, a lower part and an external thread, the lower part is fixedly connected to the nut through the upper part; a middle groove is provided on the lower part, a glue storage part and a breaking part are also provided on the lower part, the glue storage part is located in the middle groove, and the breaking part is movably connected to the lower part;

[0007] The positions of the glue storage part and the destroying part correspond to each other;

[0008] The lower portion includes a first portion and a second portion, wherein the first portion and the second portion are separated;

[0009] The glue storage piece is located between the first part and the second part, the destroying component is movably connected to the first part and the second part, and the destroying component and the glue storage piece are in a straight line.

[0010] Furthermore, the middle groove passes through one end of the lower part away from the upper part, the glue storage part is fixedly connected to the side wall of the middle groove, and the breaking component is movably connected to the ends of the first part and the second part.

[0011] Furthermore, the middle groove is located in the middle of the lower part, the side surfaces of the glue storage member are fixedly connected to the first part and the second part respectively, and the destructive component is movably connected to the surfaces of the first part and the second part away from the upper part.

[0012] Furthermore, the middle groove passes through the side surface of the lower part, and the size of the glue storage part is smaller than the size of the middle groove.

[0013] Furthermore, thread glue is arranged inside the glue storage part, and the outer shell of the glue storage part is made of plastic material.

[0014] Furthermore, the first part and the second part are symmetrical with respect to the glue storage member, and the first part and the second part have the same cross-sectional dimensions.

[0015] Furthermore, the destroying component is separated from the first part and the second part, and the destroying component includes a guide member and a destroying member.

[0016] Furthermore, the destroying member is movably connected to the first part and the second part respectively through the guide member, and the destroying member is in a straight line with the lower part.

[0017] Furthermore, the destroying piece corresponds to the position of the glue storage piece, and a protruding piece is arranged on the destroying piece, and the protruding piece is located in the middle of the destroying piece.

[0018] Furthermore, the protruding piece is partially located in the middle groove, and the protruding piece is specifically triangular in shape. The inclined surface of the protruding piece corresponds to the end positions of the first part and the second part, and the middle part of the protruding piece contacts the glue storage piece.

[0019] The beneficial effects of the utility model are as follows: providing a non-detachable fastening screw that can be automatically locked, by using a screw rod, a nut, a glue storage part, a breaking part, an upper part, a lower part and an external thread in cooperation with each other, to make a non-detachable fastening screw that can be automatically locked to replace traditional screw connection parts, so that in the process of screw locking, thread glue is added to the bottom of the mounting hole, and at the same time, the breaking part is used to lift up the separated screw rod part at the lower part, so that the separated screw rod part maintains a stable connection with the mounting hole thread, so that the screw maintains a stable connection with the mounting hole thread, avoids the screw from falling off due to vibration force for a long time, overcomes the force of the screw being touched by external force, and ensures the good stability of the screw connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is an axonometric diagram of the overall structure of an automatically locked non-detachable fastening screw.

[0021] Figure 2 This is another overall structural axonometric diagram of the utility model of an automatically locked non-detachable fastening screw.

[0022] Figure 3 The utility model is a front view of the overall structure of a non-detachable fastening screw that can be automatically locked.

[0023] In the figure: 1. nut; 2. screw; 3. external thread; 4. upper part; 5. lower part; 6. middle groove; 7. first part; 8. second part; 9. glue storage part; 10. breaking part; 11. guide part; 12. breaking part; 13. protruding part. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. The same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described in the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0025] In the description of the present utility model, it is necessary to understand that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features, and in the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] refer to Figures 1 to 3 , a non-detachable fastening screw that can be automatically locked, comprising a screw 2 and a nut 1, wherein the screw 2 is connected to the nut 1, the screw 2 comprises an upper part 4, a lower part 5 and an external thread 3, and the lower part 5 is fixedly connected to the nut 1 through the upper part 4; it is characterized in that: a middle groove 6 is provided on the lower part 5 for placing a glue storage part 9, and at the same time separating the first part 7 and the second part 8, and a glue storage part 9 and a destroying part 10 are also provided on the lower part 5, and the destroying part 10 is used to destroy the glue storage part 9 to make the thread glue inside it flow out, and the protruding part 13 is used to tighten the first part 7 and the second part 8, so as to make the two of them more tightly connected with the thread of the mounting hole, the glue storage part 9 is located in the middle groove 6, and the destroying part 10 is movably connected to the lower part 5;

[0027] The positions of the glue storage part 9 and the destroying part 10 correspond to each other, and the destroying part 10 is used to destroy the glue storage part 9 to make the thread glue inside it flow out;

[0028] The lower portion 5 includes a first portion 7 and a second portion 8, wherein the first portion 7 and the second portion 8 are separated to ensure that after the protruding member 13 presses against the first portion 7 and the second portion 8, the two portions are more tightly threadedly connected with the mounting hole;

[0029] The glue storage member 9 is located between the first part 7 and the second part 8, and the destructive member 10 is movably connected to the first part 7 and the second part 8 to ensure relative movement therebetween, and to ensure that after the protruding member 13 presses the first part 7 and the second part 8 tightly, the threaded connection between the two and the mounting hole is tighter, and the destructive member 10 and the glue storage member 9 are in a straight line.

[0030] The middle groove 6 passes through one end of the lower part 5 away from the upper part 4, the glue storage part 9 is fixedly connected to the side wall of the middle groove 6, and the destructive component 10 is movably connected to the ends of the first part 7 and the second part 8 to ensure that the destructive component 10 first contacts the bottom of the mounting hole.

[0031] The middle groove 6 is located in the middle of the lower part 5, and the side surfaces of the glue storage component 9 are fixedly connected to the first part 7 and the second part 8 respectively, so as to ensure that the shell of the glue storage component 9 is easily broken when the first part 7 and the second part 8 are separated, and the destructive component 10 is movably connected to the surface of the first part 7 and the second part 8 away from the upper part 4.

[0032] The middle groove 6 passes through the side surface of the lower portion 5 , and the size of the glue storage member 9 is smaller than that of the middle groove 6 , so as to avoid interference between the glue storage member 9 and the mounting hole.

[0033] The glue storage member 9 is provided with thread glue inside for fixing the screw rod and the mounting hole, and the outer shell of the glue storage member 9 is made of plastic material.

[0034] The first portion 7 and the second portion 8 are symmetrical with respect to the glue storage member 9 , and the first portion 7 and the second portion 8 have the same cross-sectional dimensions.

[0035] The destroying component 10 is separated from the first portion 7 and the second portion 8 , and includes a guide member 11 and a destroying member 12 , so as to ensure that the destroying member 12 can move along the guide member 11 .

[0036] The destroying member 12 is movably connected to the first portion 7 and the second portion 8 respectively through the guide member 11 to ensure the accuracy of the movement path of the destroying member 12. The destroying member 12 and the lower portion 5 are in a straight line.

[0037] The breaking piece 12 corresponds to the position of the glue storage piece 9. The breaking piece 12 is provided with a protruding piece 13. The protruding piece 13 is located in the middle of the breaking piece 12 to ensure that after the protruding piece 13 presses against the first part 7 and the second part 8, the two are more tightly connected with the threaded connection of the mounting hole.

[0038] The protrusion 13 is partially located in the middle groove 6. The protrusion 13 is specifically triangular in shape. The inclined surface of the protrusion 13 corresponds to the end positions of the first part 7 and the second part 8. The middle part of the protrusion 13 contacts the glue storage part 9 to ensure that after the protrusion 13 is pressed against the first part 7 and the second part 8, the two are more tightly connected with the threaded connection of the mounting hole.

[0039] The working principle of the utility model is as follows: before starting to use a non-detachable fastening screw that can be automatically locked, the non-detachable fastening screw that can be automatically locked is taken out; when starting to use a non-detachable fastening screw that can be automatically locked: the operator first inserts the lower part 5 into the mounting hole, during this process, the operator inserts the first part 7, the second part 8 and the breaking component 10 into the mounting hole, and then the operator rotates the screw through the wrench and the nut, during this process, the external threads of the upper part 4 and the lower part 5 are connected with the threads of the mounting hole, and the upper part 4 and the lower part 5 rotate and move toward the bottom of the mounting hole, and the above process is maintained until the breaking component is removed. 10 contacts the bottom of the mounting hole, and then the operator continues to tighten the screw. During this process, the breaking component 10 maintains contact with the bottom of the mounting hole, and the lower part 5 continues to move toward the bottom of the mounting hole. During this process, the lower part 5 slowly approaches the breaking component 12, and then the end of the lower part 5 contacts the breaking component 10. Further, the protruding part 13 pushes the first part 7 and the second part 8 part away, and the two are more tightly connected with the threaded connection of the mounting hole, and then the protruding part 13 breaks the glue storage part 9 in the middle groove 6, and the thread glue in the glue storage part 9 flows to the bottom of the mounting hole; repeat the above steps until the operator can no longer lock the screw, and the screw installation process is completed at this time.

[0040] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field of the present invention, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. An automatically locked non-detachable fastening screw, comprising a screw rod (2) and a nut (1), wherein the screw rod (2) is connected to the nut (1), the screw rod (2) comprises an upper portion (4), a lower portion (5) and an external thread (3), and the lower portion (5) is fixedly connected to the nut (1) via the upper portion (4); characterized in that: The lower part (5) is provided with a middle groove (6), and the lower part (5) is also provided with a glue storage part (9) and a breaking part (10), wherein the glue storage part (9) is located in the middle groove (6), and the breaking part (10) is movably connected to the lower part (5); The positions of the glue storage member (9) and the destroying member (10) correspond to each other; The lower part (5) comprises a first part (7) and a second part (8), wherein the first part (7) and the second part (8) are separated; The glue storage member (9) is located between the first part (7) and the second part (8), the destroying member (10) is movably connected to the first part (7) and the second part (8), and the destroying member (10) and the glue storage member (9) are in a straight line.

2. The non-detachable fastening screw capable of automatic locking according to claim 1, characterized in that: The middle groove (6) passes through one end of the lower part (5) away from the upper part (4), the glue storage part (9) is fixedly connected to the side wall of the middle groove (6), and the breaking component (10) is movably connected to the ends of the first part (7) and the second part (8).

3. The automatically locked non-detachable fastening screw according to claim 2, characterized in that: The middle groove (6) is located in the middle of the lower part (5), the side surfaces of the glue storage member (9) are fixedly connected to the first part (7) and the second part (8) respectively, and the destructive component (10) is movably connected to the surfaces of the first part (7) and the second part (8) away from the upper part (4).

4. The non-detachable fastening screw capable of automatic locking according to claim 3, characterized in that: The middle groove (6) passes through the side surface of the lower part (5), and the size of the glue storage member (9) is smaller than the size of the middle groove (6).

5. The automatically locked non-detachable fastening screw according to claim 1, characterized in that: The glue storage part (9) is provided with thread glue inside, and the outer shell of the glue storage part (9) is made of plastic material.

6. The automatically locked non-detachable fastening screw according to claim 1, characterized in that: The first part (7) and the second part (8) are symmetrical with respect to the glue storage part (9), and the first part (7) and the second part (8) have the same cross-sectional dimensions.

7. The automatically locked non-detachable fastening screw according to claim 1, characterized in that: The destroying component (10) is separated from the first part (7) and the second part (8), and the destroying component (10) comprises a guide member (11) and a destroying member (12).

8. The automatically locked non-detachable fastening screw according to claim 7, characterized in that: The destroying member (12) is movably connected to the first part (7) and the second part (8) respectively through the guide member (11), and the destroying member (12) and the lower part (5) are in a straight line.

9. The automatically locked non-detachable fastening screw according to claim 8, characterized in that: The destroying member (12) corresponds to the position of the glue storage member (9), and a protruding member (13) is provided on the destroying member (12), and the protruding member (13) is located in the middle of the destroying member (12).

10. The automatically locked non-detachable fastening screw according to claim 9, characterized in that: The protruding piece (13) is partially located in the middle groove (6); the protruding piece (13) is specifically triangular in shape; the inclined surface of the protruding piece (13) corresponds to the end positions of the first part (7) and the second part (8); and the middle part of the protruding piece (13) contacts the glue storage piece (9).

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