Threaded self-locking assembly and threaded self-locking structure

Abstract

A threaded self-locking assembly is provided, comprising: a first threaded member having a first thread formed thereon; a second threaded member having a second thread formed thereon, the second threaded member being configured to be mounted on the first threaded member and movable between a first position and a second position along the axial direction of the first threaded member; and a third threaded member having a third thread formed thereon capable of engaging with the first and second threads, the third threaded member having a clearance space for the second threaded member to move between the first and second positions; wherein, when the second threaded member is in the first position, the helix of the second thread is aligned with the helix of the first thread, so that the second thread can engage with the third thread during the screwing of the third thread into the first thread; when the second threaded member is in the second position, the helix of the second thread is misaligned with the helix of the first thread, so that the second thread interferes with the third thread engaging with the first thread. A threaded self-locking structure is also disclosed.

Description

Technical Field

[0001] Embodiments of this disclosure relate to a threaded self-locking assembly and a threaded self-locking structure. Background Technology

[0002] Threaded connections are a widely used connection method characterized by detachable fixing, offering advantages such as simple structure, reliable connection, and convenient assembly and disassembly. However, during use, threaded connections may loosen or even detach due to vibration or other factors. Utility Model Content

[0003] One object of this disclosure is to address at least one aspect of the aforementioned problems and deficiencies existing in the prior art.

[0004] According to an exemplary embodiment of one aspect of this disclosure, a threaded self-locking assembly is provided, comprising: a first threaded member having a first thread formed thereon; a second threaded member having a second thread formed thereon, the second threaded member being configured to be mounted on the first threaded member and movable between a first position and a second position along the axial direction of the first threaded member; and a third threaded member having a third thread formed thereon capable of engaging with the first thread and the second thread, the third threaded member having clearance space for the second threaded member to move between the first position and the second position. Wherein, when the second threaded member is in the first position, the helix of the second thread is aligned with the helix of the first thread, such that the second thread can engage with the third thread during the screwing of the third threaded member into the first threaded member; when the second threaded member is in the second position, the helix of the second thread is misaligned with the helix of the first thread, such that the second thread interferes with the third thread engaging with the first thread.

[0005] According to an exemplary embodiment of the present disclosure, the first thread is an internal thread. According to an exemplary embodiment of the present disclosure, the first threaded member includes a cylindrical base, the first thread being formed on the inner surface of the sidewall of the cylindrical base, and a sliding groove is also formed on the cylindrical base. A second threaded member is slidably mounted in the sliding groove along the axial direction of the first threaded member. An opening is formed on the side of the sliding groove facing the interior of the cylindrical base, such that the second thread on the second threaded member mounted in the sliding groove extends through the opening into the interior of the cylindrical base.

[0006] According to an exemplary embodiment of the present disclosure, at least one side of the sliding groove forms two locking structures. The two locking structures include a sliding base and a mating locking structure extending from the side of the sliding base corresponding to the locking structure along the first threaded member. When the second threaded member is in the first position, the mating locking structure engages with one of the two locking structures. When the second threaded member is in the second position, the mating locking structure engages with the other of the two locking structures.

[0007] According to an exemplary embodiment of this disclosure, the first thread is an external thread.

[0008] According to an exemplary embodiment of the present disclosure, the first threaded member includes a cylindrical base, the first thread is formed on the outer surface of the sidewall of the cylindrical base, a sliding groove is also formed on the cylindrical base, the second threaded member is slidably mounted in the sliding groove, and an opening is formed on the side of the sliding groove facing the outside of the cylindrical base, such that the second thread on the second threaded member mounted in the sliding groove extends to the outside of the cylindrical base through the opening.

[0009] According to an exemplary embodiment of the present disclosure, at least one side of the sliding groove has two locking structures, which are spaced apart along the axial direction of the first threaded member. The second threaded member includes a sliding base and a mating locking structure extending from the side of the sliding base corresponding to the locking structure. When the second threaded member is in the first position, the mating locking structure engages with one of the two locking structures. When the second threaded member is in the second position, the mating locking structure engages with the other of the two locking structures.

[0010] According to an exemplary embodiment of the present disclosure, the second threaded member further includes an operating portion extending radially outward from the top of the sliding base along the first threaded member.

[0011] According to an exemplary embodiment of the present disclosure, the threaded self-locking assembly is a through-plate connector, the through-plate connector including a connector housing and a nut component, the nut component being removably fitted into the connector housing to fix the through-plate connector to a target plate, wherein the first threaded member is the connector housing of the through-plate connector, and the third threaded member is the nut component of the through-plate connector.

[0012] According to another aspect of this disclosure, a threaded self-locking structure is also provided, comprising: a first threaded member having a first thread formed thereon; and a second threaded member having a second thread formed thereon, the second threaded member being configured to be mounted on the first threaded member and movable between a first position and a second position along the axial direction of the first threaded member. When the second threaded member is in the first position, the helix of the second thread is aligned with the helix of the first thread, such that during the screwing of a third threaded member threadedly engaged with the first threaded member into the first threaded member, the second thread can engage with the third thread on the third threaded member; when the second threaded member is in the second position, the helix of the second thread is misaligned with the helix of the first thread, such that the second thread interferes with the third thread engaged with the first thread. According to an exemplary embodiment of this disclosure, the first thread is an internal thread.

[0013] According to an exemplary embodiment of the present disclosure, the first threaded member includes a cylindrical base, the first thread is formed on the inner surface of the sidewall of the cylindrical base, a sliding groove is also formed on the cylindrical base, and the second threaded member is slidably mounted in the sliding groove along the axial direction of the first threaded member. An opening is formed on the side of the sliding groove facing the interior of the cylindrical base, such that the second thread on the second threaded member mounted in the sliding groove extends through the opening into the interior of the cylindrical base.

[0014] According to an exemplary embodiment of the present disclosure, at least one side of the sliding groove has two locking structures, which are spaced apart along the axial direction of the first threaded member. The second threaded member includes a sliding base and a mating locking structure extending from the side of the sliding base corresponding to the locking structure. When the second threaded member is in the first position, the mating locking structure engages with one of the two locking structures. When the second threaded member is in the second position, the mating locking structure engages with the other of the two locking structures.

[0015] According to an exemplary embodiment of this disclosure, the first thread is an external thread.

[0016] According to an exemplary embodiment of the present disclosure, the first threaded member includes a cylindrical base, the first thread is formed on the outer surface of the sidewall of the cylindrical base, a sliding groove is also formed on the cylindrical base, the second threaded member is slidably mounted in the sliding groove, and an opening is formed on the side of the sliding groove facing the outside of the cylindrical base, such that the second thread on the second threaded member mounted in the sliding groove extends to the outside of the cylindrical base through the opening.

[0017] According to an exemplary embodiment of the present disclosure, at least one side of the sliding groove has two locking structures, which are spaced apart along the axial direction of the first threaded member. The second threaded member includes a sliding base and a mating locking structure extending from the side of the sliding base corresponding to the locking structure. When the second threaded member is in the first position, the mating locking structure engages with one of the two locking structures. When the second threaded member is in the second position, the mating locking structure engages with the other of the two locking structures.

[0018] According to an exemplary embodiment of the present disclosure, the second threaded member further includes an operating portion extending radially outward from the top of the sliding base along the first threaded member.

[0019] According to the various embodiments of the present disclosure, a threaded self-locking assembly and structure are constructed by providing an additional threaded element on one of two mating threaded elements. This additional threaded element slides between a first position and a second position. When the additional threaded element is in the first position, its thread, together with the thread on the threaded element on which it is mounted, forms a thread that mates with the thread on the mating threaded element. When the additional threaded element is in the second position, its thread interferes with the thread on the mating threaded element, preventing relative rotation and disengagement between the threaded element on which it is mounted and the mating threaded element. This threaded self-locking assembly requires no additional design space, has low manufacturing cost, and can withstand significant vibration without disengaging.

[0020] Other objects and advantages of this disclosure will become apparent from the following description of the disclosure with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the disclosure. Attached Figure Description

[0021] Figure 1 This is a perspective view of a threaded self-locking assembly according to an exemplary embodiment of the present disclosure, wherein the threaded self-locking assembly is in a locked state;

[0022] Figure 2 yes Figure 1An exploded view of the threaded self-locking assembly shown;

[0023] Figure 3 yes Figure 1 Another perspective view of the threaded self-locking assembly shown, in which the threaded self-locking assembly is in the unlocked state;

[0024] Figure 4 yes Figure 1 The diagram shows the connection between the first and second threaded parts of the threaded self-locking assembly, wherein the threaded self-locking assembly is in the unlocked state.

[0025] Figure 5 yes Figure 1 Another connection diagram of the first and second threaded parts of the threaded self-locking assembly shown, wherein the threaded self-locking assembly is in a locked state;

[0026] Figure 6 yes Figure 1 A cross-sectional schematic diagram of the threaded self-locking assembly shown;

[0027] Figure 7 yes Figure 3 A cross-sectional schematic diagram of the threaded self-locking assembly shown;

[0028] Figure 8 This is a perspective view of a threaded self-locking assembly according to another exemplary embodiment of the present disclosure, wherein the threaded self-locking assembly is in a locked state;

[0029] Figure 9 yes Figure 8 An exploded view of the threaded self-locking assembly shown;

[0030] Figure 10 yes Figure 8 Another perspective view of the threaded self-locking assembly shown, in which the threaded self-locking assembly is in the unlocked state;

[0031] Figure 11 yes Figure 8 The diagram shows the connection between the first and second threaded parts of the threaded self-locking assembly, wherein the threaded self-locking assembly is in the unlocked state.

[0032] Figure 12 yes Figure 8 Another connection diagram of the first and second threaded parts of the threaded self-locking assembly shown, wherein the threaded self-locking assembly is in a locked state;

[0033] Figure 13 yes Figure 8 A cross-sectional schematic diagram of the threaded self-locking assembly shown;

[0034] Figure 14 yes Figure 10A cross-sectional schematic diagram of the threaded self-locking assembly shown; Detailed Implementation

[0035] Detailed Description of Embodiments. While this disclosure will be fully described with reference to the accompanying drawings containing preferred embodiments, it should be understood before this description that those skilled in the art can modify the disclosure described herein to obtain the technical effects of this disclosure. Therefore, it should be understood that the above description is a broad disclosure to those skilled in the art and is not intended to limit the exemplary embodiments described herein.

[0036] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0037] Example 1

[0038] Figures 1 to 7 A threaded self-locking assembly according to an exemplary embodiment of the present disclosure is shown. Figures 1 to 7 As shown, the threaded self-locking assembly according to this disclosure includes a first threaded member 10, a second threaded member 20, and a third threaded member 30. The first threaded member 10 has a first thread 12 formed thereon, which is an internal thread. The second threaded member 20 has a second thread 22 formed thereon, wherein the thread structure of the second thread 22 is consistent with the thread structure of the first thread 12. The third threaded member 30 has a third thread 32 formed thereon capable of engaging with the first thread 12 and the second thread 22. The second threaded member 20 is configured to be mounted on the first threaded member 10 and is capable of being positioned at a first position (e.g., along the axial direction of the first threaded member 10) in the first threaded member 10. Figure 3 , Figure 4 and Figure 7 (as shown) and the second position (as shown) Figure 1 , Figure 5 and Figure 6The second threaded component 20 moves between the first threaded component 10 and the first threaded component 12. When the second threaded component 20 is in the first position, the helix of the second thread 22 is aligned with the helix of the first thread 12. That is, the ends of the threads of the second thread 22 along its helix are aligned axially with the threads of the first thread 12 near the corresponding ends. This allows the second thread 22 to engage with the third thread 32 during the process of screwing the third threaded component 30 into the first threaded component 10. In other words, when the second threaded component 20 is in the first position, the first thread 12 on the first threaded component 10 and the second thread 22 on the second threaded component 20 together form a mechanism that can engage with the third thread 32. The third thread 32 on the part 30 engages with the mating thread, thereby ensuring that the third threaded part 30 can be screwed into the first threaded part 10 on which the second threaded part 20 is mounted; and when the second threaded part 20 is in the second position, the helix of the second thread 22 is misaligned with the helix of the first thread 12, that is, the ends of the threads of the second thread 22 along its helix are approximately located between two adjacent threads of the first thread 12 in the axial direction, so that the second thread 22 interferes with the third thread 32 that mates with the first thread 12, thereby preventing the first threaded part 10 and the third threaded part 30 from rotating relative to each other and becoming loose. In addition, in order to ensure that the second threaded part 20 can be screwed into the first threaded part 10 in the axial direction of the first threaded part 12 in the first position (e.g. Figure 3 , Figure 4 and Figure 7 (as shown) and the second position (as shown) Figure 1 , Figure 5 and Figure 6 The third threaded member 30 is provided with a clearance space 32a for the second threaded member 20 to move between the first position and the second position. According to an embodiment of the present disclosure, a threaded self-locking assembly is constructed by providing an additional threaded member on one of the two mating threaded members. This additional threaded member slides between the first and second positions, such that when the additional threaded member is in the first position, the threads on the additional threaded member and the threads on the threaded member on which the additional threaded member is mounted form threads that mate with the threads on the mating threaded member. When the additional threaded member is in the second position, the threads on the additional threaded member interfere with the threads on the mating threaded member, preventing relative rotation and loosening between the threaded member on which the additional threaded member is mounted and the mating threaded member. This threaded self-locking assembly requires no additional design space, has low manufacturing costs, and can withstand significant vibrations without loosening.

[0039] According to an exemplary embodiment of this disclosure, such as Figures 3 to 7As shown, the first threaded component 10 includes a cylindrical base 11, a first thread 12 formed on the inner surface of the sidewall of the cylindrical base 11, and a sliding groove 13 formed on the cylindrical base 11. A second threaded component 20 is slidably mounted in the sliding groove 13. An opening 15 is formed on the side of the sliding groove 13 facing the interior of the cylindrical base 11, so that the second thread 22 on the second threaded component 20 mounted in the sliding groove 13 extends through the opening 15 into the interior of the cylindrical base 11, so as to mate with the third thread 32 on the third threaded component 30 (e.g., ...). Figure 7 (as shown) or interference occurs (such as) Figure 6 (As shown).

[0040] Specifically, in this embodiment, only the second thread 22 extends into the interior of the cylindrical base 11 via the opening 15. Therefore, the clearance space 32a on the third thread 30 can be achieved simply by removing the portion of the third thread 33 that corresponds to the portion of the second thread 22 extending into the interior of the cylindrical base 11.

[0041] According to an exemplary embodiment of this disclosure, such as Figures 2 to 5 As shown, the sliding groove 13 has two locking grooves 14 formed on opposite sides perpendicular to the sliding direction. The two locking grooves 14 are spaced apart along the axial direction of the first threaded member 10. The second threaded member 20 includes a sliding base 21 and locking portions 23 extending from the sliding base 21 to opposite sides. When the second threaded member 20 is in the first position, the locking portion 23 engages with one of the two locking grooves 14 to lock the second threaded member 20 in the first position, thereby facilitating the assembly of the third threaded member 30 onto the first threaded member 10 and the second threaded member 20. When the second threaded member 20 is in the second position, the locking portion 23 engages with the other locking groove 14 to lock the second threaded member 20 in the second position, thereby preventing the second threaded member 20 from shifting, for example, when subjected to vibration. It should be noted that in some other embodiments of this disclosure, the locking groove may only be provided on one side of the sliding groove 13. In some embodiments, a locking groove may be provided on the second threaded member 20, and a locking part that mates with the locking groove may be provided on the sliding groove 13. Alternatively, in other embodiments, other suitable locking structures and corresponding mating locking structures may be used to lock the second threaded member at the first and second positions.

[0042] According to an exemplary embodiment of this disclosure, such as Figure 3 As shown, the second threaded member 20 also includes an operating portion 24 extending radially outward from the top of the sliding base 21 along the first threaded member 10, so that in use, the second threaded member 20 can be moved from the first position to the second position, or from the second position to the first position, via the operating portion 24.

[0043] Example 2

[0044] Figures 8 to 14 A threaded self-locking assembly according to another exemplary embodiment of the present disclosure is shown. (Figure) Figures 8 to 14 As shown, the threaded self-locking assembly according to this disclosure includes a first threaded member 10', a second threaded member 20', and a third threaded member 30'. A first thread 12' is formed on the first threaded member 10', which is an external thread. A second thread 22' is formed on the second threaded member 20', the thread structure of which is consistent with the thread structure of the first thread 12'. A third thread 32' is formed on the third threaded member 30', capable of engaging with the first thread 12' and the second thread 22'. The second threaded member 20' is configured to be mounted on the first threaded member 10' and is capable of being positioned in a first position (e.g., along the axial direction of the first threaded member 10') in the first threaded member 10'. Figure 10 , Figure 11 and Figure 14 (as shown) and the second position (as shown) Figure 8 , Figure 12 and Figure 13 The second threaded member 20' moves between the first threaded member 10' and the first threaded member 12'. When the second threaded member 20' is in the first position, the helix of the second thread 22' is aligned with the helix of the first thread 12'. That is, the threads of the second thread 22' are aligned axially with the threads of the first thread 12' near the corresponding ends along its helix. This allows the second thread 22' to engage with the third thread 32' during the process of screwing the third threaded member 30' into the first threaded member 10'. In other words, when the second threaded member 20' is in the first position, the first thread 12' on the first threaded member 10' and the second thread 22' on the second threaded member 20' together form a mechanism that can engage with the third thread 32'. The mating thread 32' on the third thread 30' engages with the first thread 10' on which the second thread 20' is mounted, thus ensuring that the third thread 30' can be screwed into the first thread 10' on which the second thread 20' is mounted. When the second thread 20' is in the second position, the helix of the second thread 22' is misaligned with the helix of the first thread 12', that is, the ends of the threads of the second thread 22' along its helix are approximately located between two adjacent threads of the first thread 12' in the axial direction, so that the second thread 22' interferes with the third thread 32' that mates with the first thread 11', thereby preventing the first thread 10' and the third thread 30' from rotating relative to each other and becoming loose. In addition, in order to ensure that the second thread 20' can be in the first position (e.g., along the axial direction of the first thread 12') Figure 10 , Figure 11 and Figure 14 (as shown) and the second position (as shown) Figure 8 , Figure 12 and Figure 13The third threaded member 30' moves between the first and second positions (as shown), and a clearance space (not shown) is formed for the second threaded member 20' to move between the first and second positions. According to an embodiment of the present disclosure, a threaded self-locking assembly is constructed by providing an additional threaded member on one of the two mating threaded members. This additional threaded member slides between the first and second positions, such that when the additional threaded member is in the first position, the thread on the additional threaded member, together with the thread on the threaded member on which the additional threaded member is mounted, forms a thread that mates with the thread on the mating threaded member. When the additional threaded member is in the second position, the thread on the additional threaded member interferes with the thread on the mating threaded member, preventing relative rotation and loosening between the threaded member on which the additional threaded member is mounted and the mating threaded member. This threaded self-locking assembly requires no additional design space, has low manufacturing costs, and can withstand significant vibrations without loosening.

[0045] According to an exemplary embodiment of this disclosure, such as Figure 11 and 12 As shown, the first threaded member 10' includes a cylindrical base 11', which may be hollow or solid. A first thread 12' is formed on the outer surface of the sidewall of the cylindrical base 11'. A sliding groove 13' is also formed on the cylindrical base 11'. The second threaded member 20' is slidably mounted in the sliding groove 13'. An opening 15' is formed on the side of the sliding groove 13' facing the outside of the cylindrical base 11', so that the second thread 22' on the second threaded member 20' mounted in the sliding groove 13' extends to the outside of the cylindrical base 11' through the opening 15'.

[0046] According to an exemplary embodiment of this disclosure, such as Figure 9 , Figure 11 and Figure 12As shown, the sliding groove 13' has two locking grooves 14' formed on opposite sides perpendicular to the sliding direction. The two locking grooves 14' are spaced apart along the axial direction of the first threaded member 10'. The second threaded member 20' includes a sliding base 21' and locking portions 23' extending from opposite sides of the sliding base 21'. When the second threaded member 20' is in the first position, the locking portion 23' engages with one of the two locking grooves 14' to lock the second threaded member 20' in the first position, thereby facilitating the assembly of the third threaded member 30' onto the first threaded member 10' and the second threaded member 20'. When the second threaded member 20' is in the second position, the locking portion 33' engages with the other locking groove 14' to lock the second threaded member 20' in the second position, thereby preventing the second threaded member 20' from shifting, for example, when subjected to vibration. It should be noted that in some other embodiments of this disclosure, the locking groove may only be provided on one side of the sliding groove 13'. In some embodiments, the locking groove may be provided on the second threaded member 20', and the locking part that mates with the locking groove may be provided on the sliding groove 13'. Alternatively, in other embodiments, other suitable locking structures and corresponding mating locking structures may be used.

[0047] According to an exemplary embodiment of this disclosure, such as Figure 10 As shown, the second threaded member 20' also includes an operating portion 24' extending radially outward from the top of the sliding base 21' along the first threaded member 10', so that in use, the second threaded member 20' can be moved from the first position to the second position, or from the second position to the first position, via the operating portion 24'.

[0048] According to an exemplary embodiment of this disclosure, such as Figure 1-2 and Figure 8-9 As shown, the threaded self-locking assembly is a through-plate connector, which includes a connector housing and a nut component. The nut component is removably fitted into the connector housing to secure the through-plate connector to a target plate (e.g., the cylinder block plate of a heavy machinery vehicle, not shown). The first threaded members 10 and 10' are the connector housing of the through-plate connector, and the third threaded members 30 and 30' are the nut components of the through-plate connector. It should be noted that in some other embodiments of this disclosure, the threaded self-locking assembly can also be other components connected together by threads.

[0049] According to another aspect of this disclosure, a threaded self-locking structure is also provided, which includes the first threaded elements 10, 10' and the second threaded elements 20, 20' as described above.

[0050] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing any conflict in structure or principle.

[0051] Although this disclosure has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of this disclosure and should not be construed as a limitation thereof.

[0052] While some embodiments of the present general inventive concept have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the present general disclosure, the scope of which is defined by the claims and their equivalents.

[0053] It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude multiple. Furthermore, any element reference numerals in the claims should not be construed as limiting the scope of this disclosure.

Claims

1. A threaded self-locking assembly, characterized in that, The threaded self-locking assembly includes: A first threaded component, on which a first thread is formed; A second threaded member, having a second thread formed thereon, is configured to be mounted on the first threaded member and movable between a first position and a second position along the axial direction of the first threaded member; and A third threaded component is formed on the third threaded component, which is capable of engaging with the first thread and the second thread, and a clearance space is formed on the third threaded component for the second threaded component to move between the first position and the second position. When the second threaded component is in the first position, the helix of the second thread is aligned with the helix of the first thread, so that the second thread can engage with the third thread during the process of screwing the third threaded component into the first threaded component; when the second threaded component is in the second position, the helix of the second thread is misaligned with the helix of the first thread, so that the second thread interferes with the third thread that engages with the first thread.

2. The threaded self-locking assembly according to claim 1, characterized in that, The first thread is an internal thread.

3. The threaded self-locking assembly according to claim 2, characterized in that, The first threaded component includes a cylindrical base, the first thread is formed on the inner surface of the sidewall of the cylindrical base, and a sliding groove is also formed on the cylindrical base. The second threaded component is slidably mounted in the sliding groove along the axial direction of the first threaded component. An opening is formed on the side of the sliding groove facing the interior of the cylindrical base, so that the second thread on the second threaded component mounted in the sliding groove extends into the interior of the cylindrical base through the opening.

4. The threaded self-locking assembly according to claim 3, characterized in that, At least one side of the sliding groove has two locking structures, which are spaced apart along the axial direction of the first threaded member. The second threaded member includes a sliding base and a mating locking structure extending from the side of the sliding base corresponding to the locking structure. When the second threaded member is in the first position, the mating locking structure engages with one of the two locking structures. When the second threaded member is in the second position, the mating locking structure engages with the other of the two locking structures.

5. The threaded self-locking assembly according to claim 1, characterized in that, The first thread is an external thread.

6. The threaded self-locking assembly according to claim 5, characterized in that, The first threaded member includes a cylindrical base, the first thread is formed on the outer surface of the sidewall of the cylindrical base, and a sliding groove is also formed on the cylindrical base. The second threaded member is slidably mounted in the sliding groove, and an opening is formed on the side of the sliding groove facing the outside of the cylindrical base, so that the second thread on the second threaded member mounted in the sliding groove extends to the outside of the cylindrical base through the opening.

7. The threaded self-locking assembly according to claim 6, characterized in that, At least one side of the sliding groove has two locking structures, which are spaced apart along the axial direction of the first threaded member. The second threaded member includes a sliding base and a mating locking structure extending from the side of the sliding base corresponding to the locking structure. When the second threaded member is in the first position, the mating locking structure engages with one of the two locking structures. When the second threaded member is in the second position, the mating locking structure engages with the other of the two locking structures.

8. The threaded self-locking assembly according to claim 4 or 7, characterized in that, The second threaded component further includes an operating portion extending radially outward from the top of the sliding base along the first threaded component.

9. The threaded self-locking assembly according to claim 4 or 7, characterized in that, The threaded self-locking assembly is a through-board connector, which includes a connector housing and a nut component. The nut component is removably fitted into the connector housing to fix the through-board connector to the target board. The first threaded component is the connector housing of the through-board connector, and the third threaded component is the nut component of the through-board connector.

10. A threaded self-locking structure, characterized in that, The threaded self-locking structure includes: A first threaded component, wherein a first thread is formed on the first threaded component; and A second threaded component has a second thread formed thereon. The second threaded component is configured to be mounted on the first threaded component and is movable between a first position and a second position along the axial direction of the first threaded component. When the second threaded component is in the first position, the helix of the second thread is aligned with the helix of the first thread, such that when a third threaded component that is thread-fitted with the first threaded component is screwed into the first threaded component, the second thread can engage with the third thread on the third threaded component. When the second threaded component is in the second position, the helix of the second thread is misaligned with the helix of the first thread, such that the second thread interferes with the third thread that engages with the first thread.

11. The threaded self-locking structure according to claim 10, characterized in that, The first thread is an internal thread.

12. The threaded self-locking structure according to claim 11, characterized in that, The first threaded component includes a cylindrical base, the first thread is formed on the inner surface of the sidewall of the cylindrical base, and a sliding groove is also formed on the cylindrical base. The second threaded component is slidably mounted in the sliding groove along the axial direction of the first threaded component. An opening is formed on the side of the sliding groove facing the interior of the cylindrical base, so that the second thread on the second threaded component mounted in the sliding groove extends into the interior of the cylindrical base through the opening.

13. The threaded self-locking structure according to claim 12, characterized in that, At least one side of the sliding groove has two locking structures, which are spaced apart along the axial direction of the first threaded member. The second threaded member includes a sliding base and a mating locking structure extending from the side of the sliding base corresponding to the locking structure. When the second threaded member is in the first position, the mating locking structure engages with one of the two locking structures. When the second threaded member is in the second position, the mating locking structure engages with the other of the two locking structures.

14. The threaded self-locking structure according to claim 10, characterized in that, The first thread is an external thread.

15. The threaded self-locking structure according to claim 10, characterized in that, The first threaded member includes a cylindrical base, the first thread is formed on the outer surface of the sidewall of the cylindrical base, and a sliding groove is also formed on the cylindrical base. The second threaded member is slidably mounted in the sliding groove, and an opening is formed on the side of the sliding groove facing the outside of the cylindrical base, so that the second thread on the second threaded member mounted in the sliding groove extends to the outside of the cylindrical base through the opening.

16. The threaded self-locking structure according to claim 15, characterized in that, At least one side of the sliding groove has two locking structures, which are spaced apart along the axial direction of the first threaded member. The second threaded member includes a sliding base and a mating locking structure extending from the side of the sliding base corresponding to the locking structure. When the second threaded member is in the first position, the mating locking structure engages with one of the two locking structures. When the second threaded member is in the second position, the mating locking structure engages with the other of the two locking structures.

17. The threaded self-locking structure according to claim 13 or 16, characterized in that, The second threaded component further includes an operating portion extending radially outward from the top of the sliding base along the first threaded component.

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