Accessory locking assembly

Abstract

The accessory locking assembly comprises a locking piece, a main body and a reset structure, the locking piece comprises an operation part, a threaded section, a matching section and a limiting structure which are sequentially arranged in the first direction, the outer diameter of the threaded section is larger than that of the matching section, the main body is provided with a threaded hole and a stop structure, the threaded hole is used for being in threaded fit with the threaded section, and the reset structure is arranged on the main body. The length of the threaded hole is smaller than that of the matching section, the operation part and the limiting structure are located on the two sides of the threaded hole respectively, and the stopping structure is located between the limiting structure and the threaded hole and used for being in stopping fit with the limiting structure; the reset structure is arranged between the limiting structure and the main body and provides reset force enabling the limiting structure to be far away from the threaded hole at least when the threaded section and the threaded hole are in a separated state. The accessory locking assembly has the anti-disengaging function, the probability that the accessory locking assembly is clamped when the accessory locking assembly is unlocked to the limiting position is reduced, and the unlocking state is easy to distinguish when the accessory locking assembly is unlocked to the limiting position.

Description

Technical Field

[0001] This application relates to the field of connection structure technology, and in particular to an accessory locking assembly. Background Technology

[0002] For related technologies, please refer to Figure 1 To prevent the locking element from separating from the main body during unlocking, an anti-detachment structure 14' is provided at the end of the threaded section 13'. When the anti-detachment structure 14' abuts against the accessory 500', the accessory 500' and the main body 200' are locked; conversely, when the anti-detachment structure 14' separates from the accessory 500', unlocking is achieved. When the threaded section 13' is withdrawn to a certain length, the anti-detachment structure 14' contacts the stop structure 200f', thereby preventing further disengagement of the threaded section 13'. However... Figure 1 As shown in the anti-disengagement position, continuing to apply force in the loosening direction to the handle 11' will cause the threaded section 13' to jam against the body 200' (it cannot be turned). In some structures, it is sometimes difficult to determine the locked state of the handle 11', only experiencing the feedback of not being able to turn it, which can easily lead to the mistaken belief that it is locked (thinking it is locked when it cannot be turned) when it is actually fully unlocked. In addition, it is also easy to unlock it to the limit position ( Figure 1 (As shown) The location is stuck and cannot be used.

[0003] The information in the background section is merely intended to illustrate the general background of the invention and should not be construed as an admission or implication in any way that such information constitutes prior art known to those skilled in the art. Summary of the Invention

[0004] In view of this, embodiments of this application aim to provide an accessory locking component that prevents detachment, reduces the probability of jamming when unlocked to the limit position, and makes it easy to distinguish the unlocked state when unlocked to the limit position.

[0005] This application provides an accessory locking assembly, including:

[0006] A locking member, comprising an operating part, a threaded section, a mating section, and a limiting structure arranged sequentially in a first direction, wherein the outer diameter of the threaded section is larger than the outer diameter of the mating section.

[0007] The main body is provided with a threaded hole and a stop structure. The threaded hole is used to engage with the threaded section. The length of the threaded hole is less than the length of the engaging section. The operating part and the limiting structure are respectively located on both sides of the threaded hole. The stop structure is located between the limiting structure and the threaded hole. The stop structure is used to engage with the stopping structure to limit the movement stroke of the locking member.

[0008] A reset structure is disposed between the limiting structure and the main body. The reset structure provides a reset force to move the limiting structure away from the threaded hole, at least when the threaded section is separated from the threaded hole.

[0009] In some implementations, the reset structure provides a constant reset force within the travel range of the locking member to move the limiting structure away from the threaded hole.

[0010] In some implementations, the reset structure includes an elastic element, the two ends of which respectively cooperate with the limiting structure and the stop structure, and the reset structure is in an energy storage state at least when the threaded section is separated from the threaded hole.

[0011] In some implementations, the elastic element is in an energy-storing state throughout the range of motion of the locking element.

[0012] In some implementations, the reset structure includes a first magnetic element and a second magnetic element, wherein the first magnetic element is disposed on the limiting structure;

[0013] The second magnetic element is disposed on the stop structure, and the first magnetic element and the second magnetic element repel each other; or, the second magnetic element is disposed on the main body and located on the side of the limiting structure away from the mating section, and the first magnetic element and the second magnetic element attract each other.

[0014] In some embodiments, the end face of the threaded segment facing the mating segment has a first chamfered surface, and the end face of the threaded hole facing the operating part has a second chamfered surface; when the mating segment mates with the threaded hole, the first chamfered surface abuts against the second chamfered surface under the action of the reset force.

[0015] In some implementations, the limiting structure, the mating section, and the threaded section are an integral structure; or, the limiting structure and the mating section are separate structures, with the limiting structure connected to the mating section.

[0016] In some embodiments, the locking member further includes a connecting section connected to the end of the threaded section away from the limiting structure. The connecting section and the operating part are separate structures. The connecting section can pass through the threaded hole from the side of the threaded hole near the limiting structure and connect to the operating part.

[0017] In some embodiments, the stop structure includes an insert, one end of which passes through the sidewall of the body along a second direction and is inserted between the limiting structure and the threaded hole, the second direction intersecting the first direction.

[0018] In some implementations, the outer peripheral surface of the mating section is provided with a groove, and the limiting structure includes a retaining spring that engages with the groove.

[0019] In some embodiments, the main body is provided with a socket for inserting an accessory. When the threaded section is threadedly engaged with the threaded hole and locked, the end of the locking member away from the operating part abuts against the accessory inserted into the socket and locks the accessory.

[0020] In some implementations, the extension direction of the socket is perpendicular to the first direction.

[0021] In some embodiments, the main body includes a first part and a second part, the first part including a shaft segment, the second part being at least partially rotatably surrounding the outer periphery of the shaft segment, the threaded hole being disposed in the shaft segment, and the locking member further having a retaining end face located between the threaded segment and the operating part, wherein when the threaded segment engages with the threaded hole for locking, the retaining end face abuts against the second part and locks the second part.

[0022] In the locking assembly of this application embodiment, after the threaded section engages with the threaded hole, when the operating part is turned in the tightening direction, the locking member continuously screws into the main body. When the operating part is turned in the feeding direction, the locking member continuously screws out of the main body. After the threaded section disengages from the threaded hole, the mating section engages with the threaded hole. At this point, even if the operating part is turned in the loosening direction, since there is no thread engagement, the mating section can rotate freely in the threaded hole, and the locking member can also rotate freely indefinitely. Therefore, there is no problem of the locking member getting stuck when it is loosened to the limit position. At this point, it is easy to determine that the threaded section is not locked. When the locking member moves towards the operating part until the limiting structure and the stop structure engage, the locking member can no longer move towards the operating part. In this way, the locking member can be prevented from detaching from the main body, thus playing a role in preventing detachment.

[0023] When the threaded section is completely loosened from the threaded hole, the reset mechanism provides a force that brings the threaded section closer to the threaded hole. At this point, regardless of rotation, the end face of the threaded section will remain in contact with the end face of the threaded hole. The loosening direction can be rotated indefinitely at this point, and when operating in the tightening direction, the threaded section and the threaded hole can be quickly engaged.

[0024] This application provides an accessory locking assembly, including:

[0025] The locking component includes an operating part, a mating section, a limiting end face, and a threaded section connected sequentially along a first direction; the diameter of the threaded section is larger than the diameter of the mating section.

[0026] The main body is provided with a threaded hole, a receiving space and an opening. The receiving space connects the threaded hole and the opening. The threaded hole is used to thread with the threaded segment. The threaded segment passes through the opening. The operating part and the limiting end face are respectively located on both sides of the opening. The length of the receiving space in the first direction is not less than the length of the threaded segment.

[0027] When the threaded segment is completely withdrawn from the threaded hole into the accommodating space, the limiting end face is used to cooperate with the main body stop to prevent the locking member from dislodging from the opening.

[0028] In some implementations, the diameter of the maximum rotation trajectory of the limiting end face is greater than the diameter of the inscribed circle of the opening.

[0029] In some embodiments, the main body includes a first part and a second part, the first part including a shaft segment, the second part being at least partially rotatably surrounding the outer periphery of the shaft segment, the threaded hole being disposed in the shaft segment, and the locking member further having a retaining end face located between the mating section and the operating part, wherein when the threaded section engages and locks with the threaded hole, the retaining end face abuts against the second part and locks the second part.

[0030] In some embodiments, the second portion is axially movable along the shaft segment, and the abutting end face is used to push the second portion axially along the shaft segment as the threaded segment is screwed into the threaded hole.

[0031] In some embodiments, the second part includes a cylindrical portion and an end cap portion, the end cap portion being disposed at one axial end of the cylindrical portion, the cylindrical portion surrounding the outer periphery of the shaft segment, the end cap portion being located on the side of the shaft segment near the operating part, the opening being formed in the end cap portion, and the abutting end face being used for abutting and engaging with the end cap portion.

[0032] In some embodiments, the shaft segment is further provided with a receiving hole located at one end of the threaded hole near the operating part. The inner diameter of the receiving hole is larger than the inner diameter of the threaded hole, and the length of the receiving hole is smaller than the length of the threaded segment. The sum of the axial travel of the second part and the length of the receiving hole is not less than the length of the threaded segment. The end cap and the receiving hole together define the receiving space.

[0033] In some embodiments, the first part further includes a first toothed disc portion, and the second part includes a second toothed disc portion. When the threaded segment engages and locks with the threaded hole, the first toothed disc portion and the second toothed disc portion mesh and connect along the first direction.

[0034] In some embodiments, the accessory locking assembly further includes an elastic member that constantly applies a force to the second portion away from the first portion along the first direction.

[0035] In some embodiments, the accessory locking assembly further includes a reset structure that applies a reset force to the locking member near the threaded hole, at least when the threaded segment is separated from the threaded hole.

[0036] In some embodiments, the reset structure includes an elastic element disposed between the limiting end face and the body.

[0037] In some implementations, the elastic element includes a disc spring or a leaf spring.

[0038] In some embodiments, the end face of the threaded segment away from the mating segment has a first chamfered surface, and the end face of the threaded hole facing the operating part has a second chamfered surface; when the threaded segment separates from the threaded hole, the first chamfered surface abuts against the second chamfered surface under the action of the restoring force.

[0039] In the accessory locking assembly of this application embodiment, after the threaded section engages with the threaded hole, when the operating part is turned in the tightening direction, the locking member continuously screws into the main body. When the operating part is turned in the loosening direction, the locking member continuously screws out of the main body, the mating section moves in the opening, and after the threaded section disengages from the threaded hole, the threaded section enters the receiving space. At this time, even if the operating part is continued to be turned in the loosening direction, since there is no thread engagement, the threaded section can rotate freely in the receiving space, and the locking member can also rotate freely indefinitely. Therefore, there is no problem of the locking member getting stuck when it is loosened to the limit position. At this time, it is easy to determine that the threaded section is not locked. When the locking member moves towards the operating part until the limiting end face contacts the main body stop, the locking member can no longer move towards the operating part. In this way, the locking member can be prevented from detaching from the main body, thus playing a role in preventing detachment. Attached Figure Description

[0040] Figure 1 This is a schematic diagram illustrating the mating of the accessory locking assembly and the accessory in the related technology;

[0041] Figure 2 This is a schematic diagram illustrating the engagement of the accessory locking assembly and the accessory according to the first embodiment of this application;

[0042] Figure 3 for Figure 2 A schematic diagram of the structure shown from another perspective;

[0043] Figure 4 for Figure 3 A cross-sectional view of the structure shown;

[0044] Figure 5 for Figure 4 The diagram shown is a schematic representation of the structure omitting the locking mechanism.

[0045] Figure 6 for Figure 2 A schematic diagram of the locking element in the structure shown;

[0046] Figure 7 This is a schematic diagram of the accessory locking assembly according to the second embodiment of this application;

[0047] Figure 8 for Figure 7 An explosion diagram;

[0048] Figure 9 for Figure 7 A sectional view;

[0049] Figure 10 for Figure 9 A schematic diagram of the locking mechanism;

[0050] Figure 11 for Figure 9 A schematic diagram of the main body;

[0051] Figure 12 This is a schematic diagram of the accessory locking assembly according to the third embodiment of this application;

[0052] Figure 13 for Figure 12 A diagram from another perspective;

[0053] Figure 14 for Figure 12 An explosion diagram;

[0054] Figure 15 for Figure 13 A sectional view;

[0055] Figure 16 for Figure 15 The diagram shown is a schematic representation of the structure omitting the locking mechanism.

[0056] Figure 17 for Figure 12 A schematic diagram of the locking element in the structure shown;

[0057] Figure 18 for Figure 17 A diagram from another perspective.

[0058] Explanation of reference numerals in the attached figures

[0059] 100. Locking element; 11. Operating part; 12. Threaded section; 12a. First chamfered surface; 13. Mating section; 14. Limiting structure; 16a. Limiting end face; 17a. Holding end face; 15. Connecting section; 200. Main body; 200a. Threaded hole; 200b. Insertion hole; 200c. Accommodating space; 200d. Opening; 200e. Second chamfered surface; 200f. Stop structure; 200g. Insert; 21. First part; 211. Shaft section; 212. First gear plate part; 211a. Accommodating hole; 22. Second part; 221. Cylindrical part; 222. End cap part; 223. Second gear plate part; 300. Reset structure; 400. Elastic member; 500. Accessory. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0061] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this invention will not be described separately.

[0062] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0063] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0064] This application provides an accessory locking component. Please refer to [link / reference]. Figures 2 to 11 It includes a locking component 100 and a main body 200.

[0065] Please see Figure 6 and Figure 10 The locking member 100 includes an operating part 11, a threaded section 12, a mating section 13, and a limiting structure 14 arranged sequentially in a first direction. The outer diameter of the threaded section 12 is larger than the outer diameter of the mating section 13.

[0066] The first direction can be understood as the axial direction of thread segment 12.

[0067] The outer diameter of the threaded section 12 is the diameter of the profile of the threaded section 12 in a plane perpendicular to its axial direction, that is, the major diameter of the threaded section 12.

[0068] It should be noted that the above-mentioned sequential arrangement in the first direction refers to the arrangement order in the first direction, and does not specifically refer to a direct connection between adjacent parts. For example, taking the operating part 11 and the threaded section 12 as an example, the operating part 11 and the threaded section 12 can be directly connected, or other structures can be provided between them.

[0069] Please see Figure 4 and Figure 9 The main body 200 is provided with a threaded hole 200a and a stop structure 200f. The threaded hole 200a is used to engage with the threaded section 12.

[0070] The length of the threaded hole 200a is less than the length of the mating section 13.

[0071] The operating part 11 and the limiting structure 14 are located on both sides of the threaded hole 200a. That is, after the accessory locking assembly is assembled, the operating part 11 cannot enter the threaded hole 200a, and the limiting structure 14 cannot enter the threaded hole 200a.

[0072] Please see Figure 4 and Figure 9 The stop structure 200f is located between the limiting structure 14 and the threaded hole 200a. The stop structure 200f is used to cooperate with the stop of the limiting structure 14 to limit the movement stroke of the locking member 100.

[0073] Specifically, after the threaded section 12 engages with the threaded hole 200a, when the operating part 11 is turned in the tightening direction, the locking member 100 continuously screws into the main body 200. When the operating part 11 is turned in the loosening direction, the locking member 100 continuously screws out of the main body 200. After the threaded section 12 disengages from the threaded hole 200a, the mating section 13 engages with the threaded hole 200a. At this time, even if the operating part 11 is turned in the loosening direction, since there is no thread engagement, the mating section 13 can rotate freely in the threaded hole 200a, and the locking member 100 can also rotate freely and infinitely. Therefore, there will be no problem of the locking member 100 getting stuck when it is loosened to the limit position. At this time, it can be easily determined that the threaded section 12 is not locked. When the locking member 100 moves toward the operating part 11 until the limiting structure 14 engages with the stop structure 200f, the locking member 100 can no longer move toward the operating part 11. In this way, the locking member 100 can be prevented from detaching from the main body 200, thus playing a role in preventing detachment.

[0074] In related technologies, when the locking part is fully unlocked to a position where it can rotate indefinitely, if the operating part is rotated in the tightening direction, the threaded section may not immediately engage with the threaded hole, and there may be a situation where it rotates indefinitely when tightening is required.

[0075] Therefore, please refer to some embodiments of this application. Figure 4 and Figure 9 The accessory locking assembly also includes a reset structure 300, which is disposed between the limiting structure 14 and the main body 200. The reset structure 300 provides a reset force to move the limiting structure 14 away from the threaded hole 200a, at least when the threaded section 12 is separated from the threaded hole 200a. It should be noted that the reset structure 300 can directly apply the aforementioned reset force to the limiting structure 14, or it can indirectly apply the aforementioned reset force to the limiting structure 14 through other structures; this is not limited here.

[0076] When the threaded section 12 is completely disengaged from the threaded hole 200a, the reset structure 300 provides a force that brings the threaded section 12 closer to the threaded hole 200a. At this point, regardless of rotation, the end face of the threaded section 12 will remain in contact with the end face of the threaded hole 200a. The loosening direction can be rotated indefinitely at this time, and when operating in the tightening direction, the threaded section 12 and the threaded hole 200a can be quickly engaged.

[0077] In some embodiments, the reset structure 300 continuously provides a reset force within the travel range of the locking member 100 to move the limiting structure 14 away from the threaded hole 200a. That is, no matter where the locking member 100 moves, the reset structure 300 will always apply the aforementioned reset force to the limiting structure 14, thereby reducing the accuracy requirements for the travel range of the reset structure 300 and the locking member 100.

[0078] Of course, in other embodiments, the reset structure 300 may apply a reset force only when the locking member 100 moves to the point where the threaded section 12 is completely disengaged from the threaded hole 200a. When the threaded section 12 and the threaded hole 200a are engaged, the reset structure 300 may not apply a reset force.

[0079] The specific implementation of the reset structure 300 is not limited.

[0080] For example, in some embodiments, the reset structure 300 includes an elastic element, the two ends of which directly or indirectly cooperate with the limiting structure 14 and the stop structure 200f. That is, the limiting structure 14 and the stop structure 200f apply a reaction force to the elastic element, and the elastic element is in an energy-storing state at least when the threaded section 12 is separated from the threaded hole 200a. The energy-storing state can also be understood as a state in which elastic deformation has occurred. One end of the elastic element directly or indirectly abuts against the limiting structure 14, using the limiting structure 14 to provide reaction force support for the elastic element, and the other end of the elastic element directly or indirectly abuts against the stop structure 200f, thereby applying an elastic force (i.e., a reset force) away from the threaded hole 200a to the limiting structure 14.

[0081] The specific form of the elastic element is not limited. For example, the elastic element can be made of a flexible material, such as rubber or silicone. The elastic element can also be made of metal, such as a cylindrical spring, disc spring, or spring arm.

[0082] In this embodiment, a spring is used as an example of an elastic element, and the spring is sleeved on the outer periphery of the mating section 13.

[0083] It should be noted that when the threaded section 12 is engaged with the threaded hole 200a, the elastic element can be in an energy-storing state (for example, the energy-storing state can also be understood as a compression state) or in a natural state (a state that is neither stretched nor compressed).

[0084] In some embodiments, the elastic element is in an energy-storing state throughout the movement range of the locking member 100. Thus, regardless of the position to which the locking member 100 moves, the elastic element will always apply an elastic force (i.e., a restoring force) to the limiting structure 14 in a direction away from the threaded hole 200a.

[0085] In other embodiments, the reset structure 300 includes a first magnetic element and a second magnetic element. The magnetic force generated between the first and second magnetic elements is used as the reset force.

[0086] For example, a first magnetic element is disposed on the limiting structure 14, and a second magnetic element is disposed on the stop structure 200f. The first and second magnetic elements repel each other. That is, the magnetic properties of the ends of the first and second magnetic elements closest to each other are the same, generating a repulsive force (i.e., a restoring force). In this embodiment, both the first and second magnetic elements can be permanent magnets.

[0087] For example, a first magnetic element is disposed on a limiting structure 14, and a second magnetic element is disposed on the main body 200. The projection of the second magnetic element onto the axis of the locking member 100 is such that the limiting structure 14 is located between the second magnetic element and the mating section 13. The first and second magnetic elements attract each other. That is, the magnetism of the ends of the first and second magnetic elements closest to each other is opposite, generating a magnetic attraction force (i.e., a resetting force). In this embodiment, both the first and second magnetic elements can be permanent magnets, or one can be a permanent magnet and the other a ferromagnetic element.

[0088] In some embodiments, please refer to Figure 6 and Figure 10 The end face of the threaded section 12 facing the mating section 13 has a first chamfered surface 12a. Please refer to [link / reference]. Figure 5 and Figure 11 The end face of the threaded hole 200a facing the operating part 11 has a second chamfered surface 200e. When the mating section 13 mates with the threaded hole 200a, the first chamfered surface 12a abuts against the second chamfered surface 200e under the action of the restoring force. The first chamfered surface 12a and the second chamfered surface 200e have a guiding function. When the threaded section 12 is completely disengaged from the threaded hole 200a, no matter how it is rotated, the restoring force can ensure the contact of the first chamfered surface 12a and the second chamfered surface 200e. At this time, the loosening direction can be rotated indefinitely. When the operating part 11 is screwed in the tightening direction, the threaded section 12 and the threaded hole 200a can be further and quickly engaged.

[0089] In some embodiments, the limiting structure 14, the mating section 13, and the threaded section 12 are integral structures. For example, they are machined from the same round bar. The limiting structure 14 may be generally disk-shaped.

[0090] In other embodiments, the limiting structure 14 and the mating section 13 are separate structures, with the limiting structure 14 connected to the mating section 13. In this way, the machining of the limiting structure 14, the machining of the mating section 13 and the threaded section 12 can be carried out separately, reducing the limitations on machining processes and raw materials.

[0091] For example, the outer circumferential surface of the mating section 13 is provided with a groove, and the limiting structure 14 includes a retaining spring, which engages with the groove. This facilitates processing and manufacturing.

[0092] In some embodiments, please refer to Figure 4 and Figure 5The structure on the main body 200 forms the aforementioned stop structure 200f. For example, the diameter of the maximum rotation trajectory of the limiting structure 14 is greater than the diameter of the threaded hole 200a. The end face of the threaded hole 200a facing the limiting structure 14 can serve as the stop structure 200f. Alternatively, the main body 200 may also provide other holes at the end of the threaded hole 200a away from the operating part 11, and the end face of the holes can serve as the stop structure 200f.

[0093] In other embodiments, please refer to Figure 8 , Figure 9 as well as Figure 11 The stop structure 200f includes an insert 200g, one end of which passes through the side wall of the main body 200 along a second direction and is inserted between the limiting structure 14 and the threaded hole 200a. The second direction intersects the first direction, for example, it can be perpendicular. By forming the stop structure 200f with the insert 200g, the radial dimension of the limiting structure 14 in the threaded segment 12 is not limited; it can be larger than, smaller than, or equal to the outer diameter of the threaded segment 12.

[0094] For example, in some embodiments, the main body 200 forms a blind hole, part of which is a threaded hole 200a, and the other part is a smooth hole (i.e., a hole section without threads). The limiting structure 14 and the mating section 13 of the locking member 100 can both pass through the threaded hole 200a from the opening 200d of the blind hole and enter the smooth hole. Subsequently, the insert 200g is inserted to form the stop structure 200f. This reduces the restrictions on the size and structural shape of the locking member 100.

[0095] In some embodiments, please refer to Figure 4 The locking member 100 also includes a connecting section 15, which is connected to the end of the threaded section 12 away from the limiting structure 14. The connecting section 15 and the operating part 11 are separate structures. The connecting section 15 can pass through the threaded hole 200a near the limiting structure 14 and connect to the operating part 11. In this embodiment, the threaded hole 200a is a through hole. During assembly, the components of the locking member 100 except for the operating part 11 form a whole. The connecting section 15 enters the threaded hole 200a from the end of the threaded hole 200a near the limiting structure 14 and exits from the other end of the threaded hole 200a, and then fastens the operating part 11 to the connecting section 15.

[0096] In some embodiments, please refer to Figure 2The main body 200 is provided with a socket 200b for inserting the accessory 500. When the threaded section 12 is threadedly engaged with the threaded hole 200a, the end of the locking member 100 away from the operating part 11 abuts against the accessory 500 inserted into the socket 200b and locks the accessory 500. After the accessory 500 is inserted into the socket 200b, the operating part 11 is turned in the tightening direction. The locking member 100 is continuously screwed into the main body 200. When the end of the locking member 100 away from the operating part 11 contacts the accessory 500, the operating part 11 is rotated further. The holding force of the locking member 100 against the accessory 500 increases until the accessory 500 is pressed tightly. At this time, the locking member 100 can no longer rotate, and the locking member 100 is in a locked state that locks the accessory 500 and the main body 200.

[0097] In some embodiments, the aforementioned limiting structure 14 and the accessory 500 may support each other. In other embodiments, the locking member 100 may also have a supporting section on the side of the limiting structure 14 away from the threaded section 12, through which the accessory 500 is supported.

[0098] The extension direction of the socket 200b is not limited. For example, in some embodiments, the extension direction of the socket 200b is perpendicular to the first direction, which can improve the locking reliability of the locking member 100 to the accessory 500. Of course, in other embodiments, the extension direction of the socket 200b may not be perpendicular to the first direction.

[0099] In some embodiments, please refer to Figures 1 to 6 The accessory locking assembly of the first embodiment shown has a one-piece structure for the main body 200, meaning that there is no relative movement between any parts of the main body 200.

[0100] In other embodiments, please refer to Figures 7 to 11 The accessory locking assembly of the second embodiment shown has a body 200 including a first portion 21 and a second portion 22. The first portion 21 includes a shaft segment 211, and the second portion 22 is at least partially rotatably surrounding the outer periphery of the shaft segment 211. A threaded hole 200a is provided in the shaft segment 211. (See also...) Figure 9 and Figure 10 The locking member 100 also has a retaining end face 17a, which is located between the threaded section 12 and the operating part 11. When the threaded section 12 is engaged and locked with the threaded hole 200a, the retaining end face 17a abuts against the second part 22 and locks the second part 22.

[0101] In this embodiment, when the locking member 100 is not locked, the second part 22 can rotate around the shaft segment 211, that is, the first part 21 and the second part 22 can rotate relative to each other. When locked, the abutting end face 17a applies a thrust to the second part 22 in the first direction and away from the operating part 11. Under the action of the thrust, the first part 21 and the second part 22 are squeezed and locked in the first direction.

[0102] In the accessory locking assembly of the second embodiment, please refer to Figure 8 , Figure 9 and Figure 11 The second part 22 may include a cylindrical portion 221 and an end cap portion 222, with the end cap portion 222 disposed at one axial end of the cylindrical portion 221. The cylindrical portion 221 and the end cap portion 222 may be an integral structure, for example, an integral metal part or an integral plastic part. Alternatively, the cylindrical portion 221 and the end cap portion 222 may be separate structures connected together. This application embodiment does not limit this.

[0103] The cylindrical portion 221 surrounds the outer periphery of the shaft section 211, and the end cap portion 222 is located on the side of the shaft section 211 near the operating portion 11. An opening 200d is formed in the end cap portion 222, and the holding end face 17a is used to abut against and cooperate with the end cap portion 222.

[0104] This application provides an accessory locking component. Please refer to [link / reference]. Figures 12 to 18 It includes a locking component 100 and a main body 200.

[0105] The locking member 100 includes an operating part 11, a mating section 13, a limiting end face 16a, and a threaded section 12 connected sequentially along a first direction. The diameter of the threaded section 12 is larger than the diameter of the mating section 13.

[0106] It should be noted that the above-mentioned sequential arrangement in the first direction refers to the arrangement order in the first direction, and does not specifically refer to a direct connection between adjacent parts. For example, taking the operating part 11 and the mating section 13 as an example, the operating part 11 and the mating section 13 can be directly connected, or other structures can be provided between them.

[0107] Please see Figure 16 The main body 200 is provided with a threaded hole 200a, a receiving space 200c, and an opening 200d. The receiving space 200c connects the threaded hole 200a and the opening 200d. The threaded hole 200a is used for threaded engagement with the threaded section 12. The mating section 13 passes through the opening 200d, and the operating part 11 and the limiting end face 16a are located on both sides of the opening 200d, respectively. That is to say, after the accessory locking assembly is assembled, the operating part 11 cannot pass through the opening 200d, and the limiting end face 16a cannot pass through the opening 200d either.

[0108] The length of the accommodating space 200c in the first direction is not less than the length of the threaded section 12.

[0109] When the threaded section 12 is completely withdrawn from the threaded hole 200a into the receiving space 200c, the limiting end face 16a is used to cooperate with the stop of the body 200 to prevent the locking member 100 from coming out of the opening 200d.

[0110] Specifically, after the threaded section 12 engages with the threaded hole 200a, when the operating part 11 is turned in the tightening direction, the locking member 100 continuously screws into the main body 200. When the operating part 11 is turned in the loosening direction, the locking member 100 continuously screws out of the main body 200, the mating section 13 moves in the opening 200d, and after the threaded section 12 disengages from the threaded hole 200a, the threaded section 12 enters the receiving space 200c. At this time, even if the operating part 11 is turned in the loosening direction, since there is no thread engagement, the threaded section 12 can rotate freely in the receiving space 200c, and the locking member 100 can also rotate freely and infinitely. Therefore, there will be no problem of the locking member 100 getting stuck when it is loosened to the limit position. At this time, it can be easily determined that the threaded section 12 is not locked. When the locking member 100 moves toward the operating part 11 until the limiting end face 16a contacts the stop of the main body 200, the locking member 100 can no longer move toward the operating part 11. In this way, the locking member 100 can be prevented from detaching from the main body 200, thus playing the role of preventing detachment.

[0111] In some embodiments, the diameter of the maximum rotation trajectory of the limiting end face 16a is greater than the diameter of the inscribed circle of the opening 200d. Thus, the opening 200d itself can prevent the limiting end face 16a from passing through the opening 200d, thereby preventing it from detaching, and thus eliminating the need for other stop structures.

[0112] It should be noted that the inscribed circle diameter can be understood as follows: if a cylinder with the largest diameter is placed in the opening 200d, the outer diameter of the cylinder is the inscribed circle diameter.

[0113] In some embodiments, the opening 200d is circular and coaxially arranged with the threaded hole 200a, so that the opening 200d can also play a better guiding role in the movement of the mating section 13.

[0114] In other embodiments, the opening 200d may also be non-circular, and the center of the opening 200d and the threaded hole 200a may not be coaxial. In short, it is acceptable as long as the limiting end face 16a can be prevented from passing through the opening 200d.

[0115] In some embodiments, please refer to Figures 13 to 16 The main body 200 includes a first part 21 and a second part 22. The first part 21 includes a shaft segment 211. The second part 22 is at least partially rotatably surrounding the outer periphery of the shaft segment 211. A threaded hole 200a is provided in the shaft segment 211.

[0116] Please see Figure 17 and Figure 18The locking member 100 also has a retaining end face 17a, which is located between the mating section 13 and the operating part 11. When the threaded section 12 is engaged and locked with the threaded hole 200a, the retaining end face 17a abuts against the second part 22 and locks the second part 22.

[0117] In other words, when the threaded section 12 is not locked, the first part 21 and the second part 22 can rotate relative to each other. When the threaded section 12 engages with the threaded hole 200a and the first part 21 and the second part 22 are locked, the first part 21 and the second part 22 cannot rotate relative to each other.

[0118] The specific structure of Part 1, 21 is not limited. The specific structure of Part 2, 22 is not limited.

[0119] In some embodiments, the second portion 22 is axially movable along the shaft segment 211, and the holding end face 17a is used to push the second portion 22 axially along the shaft segment 211 during the screwing of the threaded segment 12 into the threaded hole 200a. Specifically, when the threaded segment 12 is not locked, the first portion 21 and the second portion 22 can not only rotate relative to each other, but also move relatively linearly.

[0120] In some embodiments, please refer to Figure 16 The second part 22 includes a cylindrical portion 221 and an end cap portion 222, with the end cap portion 222 disposed at one axial end of the cylindrical portion 221. The cylindrical portion 221 and the end cap portion 222 can be an integral structure, for example, an integral metal part or an integral plastic part. Alternatively, the cylindrical portion 221 and the end cap portion 222 can be separate structures connected together. This application embodiment does not limit this.

[0121] The cylindrical portion 221 surrounds the outer periphery of the shaft section 211, and the end cap portion 222 is located on the side of the shaft section 211 near the operating portion 11. An opening 200d is formed in the end cap portion 222, and the holding end face 17a is used to abut against and cooperate with the end cap portion 222.

[0122] In some embodiments, please refer to Figure 16 The shaft segment 211 is also provided with a receiving hole 211a, which is located at the end of the threaded hole 200a near the operating part 11. The inner diameter of the receiving hole 211a is larger than the inner diameter of the threaded hole 200a. The receiving hole 211a constitutes at least a portion of the receiving space 200c. When the operating part 11 is screwed in the loosening direction, the threaded segment 12 gradually retracts from the threaded hole 200a into the receiving hole 211a.

[0123] It should be noted that when the threaded segment 12 is completely withdrawn from the threaded hole 200a, the threaded segment 12 can be completely accommodated in the accommodating hole 211a. In this case, the length of the threaded hole 200a is not less than the length of the threaded segment 12. Of course, the threaded segment 12 can also be partially accommodated in the accommodating hole 211a, with another part extending out of the accommodating hole 211a from the end away from the threaded hole 200a.

[0124] It should be noted that the receiving hole 211a is beneficial to still guide the threaded section 12 even when the threaded section 12 is completely withdrawn from the threaded hole 200a.

[0125] When the threaded section 12 can rotate infinitely in the receiving hole 211a, the diameter of the receiving hole 211a is as close as possible to the outer diameter of the threaded section 12, so that the center line of the threaded section 12 is as close as possible to the center line of the threaded hole 200a. When the operating part 11 is screwed in the tightening direction, it is beneficial to quickly align the threaded section 12 and the threaded hole 200a, thereby achieving rapid engagement between the two.

[0126] In some embodiments, the length of the receiving hole 211a is less than the length of the threaded segment 12, and the sum of the axial travel of the second portion 22 and the length of the receiving hole 211a is not less than the length of the threaded segment 12. The end cap portion 222 and the receiving hole 211a together define the receiving space 200c.

[0127] Specifically, when the operating part 11 is screwed in the loosening direction, the threaded section 12 continuously exits from the threaded hole 200a into the receiving hole 211a. When the limiting end face 16a presses against the end cap 222, as the threaded section 12 continuously exits from the threaded hole 200a, the locking member 100 pushes the second part 22 to move axially toward the operating part 11, increasing the distance between the end cap 222 and the end face of the threaded hole 200a, thereby facilitating the expansion of the size of the receiving space 200c for receiving the threaded section 12.

[0128] In this embodiment, by utilizing the relative axial movement of the second part 22 and the first part 21, the length of the receiving hole 211a can be reduced, which in turn helps to reduce the length of the shaft segment 211, making the main body 200 structure more compact.

[0129] In some embodiments, please refer to Figure 14 and Figure 16 The first part 21 also includes a first gear plate 212, and the second part 22 also includes a second gear plate 223. When the threaded section 12 is engaged and locked with the threaded hole 200a, the first gear plate 212 and the second gear plate 223 are connected along the first direction.

[0130] Before the locking member 100 locks the first part 21 and the second part 22, the first gear plate portion 212 and the second gear plate portion 223 are separated, and the first part 21 and the second part 22 can rotate relative to each other. During the tightening process, the operating part 11 is turned toward the tightening direction, and the abutting end face 17a pushes the second part 22 toward the first gear plate portion 212 until the first gear plate portion 212 and the second gear plate portion 223 engage (before locking, the first part 21 and the second part 22 can be adjusted to a suitable angle). At this point, the first part 21 and the second part 22 are circumferentially limited and cannot rotate relative to each other. Thus, the first part 21 and the second part 22 are locked at the current angle. The structure of the first gear plate portion 212 and the second gear plate portion 223 improves the reliability of the angle locking of the first part 21 and the second part 22, making it less likely for them to rotate relative to each other during locking.

[0131] In some embodiments, please refer to Figure 8 , Figure 9 and Figure 11 The accessory locking assembly also includes an elastic member 400, which constantly applies a force to the second part 22 in a first direction away from the first part 21. That is, when the operating part 11 is turned in the loosening direction, the elastic member 400 facilitates the effective separation of the first gear part 212 and the second gear part 223. After the locking member 100 is loosened, the first part 21 and the second part 22 can be rotated relative to each other without manually pulling the second part 22 or the first part 21, which is convenient for operation.

[0132] The specific structure of the elastic member 400 is not limited. For example, it can be a spring, a disc spring, or a flexible pad made of flexible material.

[0133] In some embodiments, please refer to Figure 9 The accessory locking assembly also includes a reset structure 300, which applies a reset force to the locking member 100 near the threaded hole 200a at least when the threaded section 12 is separated from the threaded hole 200a.

[0134] When the threaded section 12 is completely disengaged from the threaded hole 200a, the reset structure 300 provides a force that brings the threaded section 12 closer to the threaded hole 200a. At this point, regardless of rotation, the end face of the threaded section 12 will remain in contact with the end face of the threaded hole 200a. The loosening direction can be rotated indefinitely at this time, and when operating in the tightening direction, the threaded section 12 and the threaded hole 200a can be quickly engaged.

[0135] In some embodiments, the reset structure 300 constantly applies a reset force away from the threaded hole 200a to the limiting structure 14 within the range of motion of the locking member 100. That is, no matter where the locking member 100 moves, the reset structure 300 will always apply the aforementioned reset force to the limiting structure 14, thereby reducing the accuracy requirements for the motion stroke of the reset structure 300 and the locking member 100.

[0136] Of course, in other embodiments, the reset structure 300 may apply a reset force only when the locking member 100 moves to the point where the threaded section 12 is completely disengaged from the threaded hole 200a. When the threaded section 12 and the threaded hole 200a are engaged, the reset structure 300 may not apply a reset force.

[0137] The location of the reset structure 300 is not limited.

[0138] In some embodiments, the reset structure 300 includes an elastic element disposed between the limiting end face 16a and the main body 200. For example, it is disposed between the limiting end face 16a and the aforementioned end cap portion 222. It should be noted that the reset structure 300 can be mounted on the locking member 100 or on the end cap portion 222.

[0139] The specific form of the elastic element is not limited. For example, the elastic element can be made of a flexible material, such as rubber or silicone. The elastic element can also be made of metal, such as a cylindrical spring, disc spring, or spring arm.

[0140] In some specific embodiments, the elastic element includes a disc spring or a spring sheet. Disc springs and spring sheets have simple structures, small dimensions, and require less installation space. This is advantageous for installation between the limiting end face 16a and the end cover portion 222.

[0141] It should be noted that in some embodiments, the limiting end face 16a may be the shaft end face of the threaded section 12 facing the operating part 11.

[0142] In other embodiments, the limiting end face 16a may be the end face of a non-threaded segment.

[0143] In some embodiments, please refer to Figure 17 and Figure 18 The end face of the threaded section 12 away from the mating section 13 has a first chamfered surface 12a. Please refer to [link / reference]. Figure 16The end face of the threaded hole 200a facing the operating part 11 has a second chamfered surface 200e. When the threaded segment 12 is separated from the threaded hole 200a, the first chamfered surface 12a abuts against the second chamfered surface 200e under the action of the restoring force. The first chamfered surface 12a and the second chamfered surface 200e have a guiding function. When the threaded segment 12 is completely separated from the threaded hole 200a, no matter how it is rotated, the restoring force can ensure the contact of the first chamfered surface 12a and the second chamfered surface 200e. At this time, the loosening direction can be rotated indefinitely. When the operating part 11 is screwed in the tightening direction, the threaded segment 12 and the threaded hole 200a can be further and quickly engaged.

[0144] For example, in some embodiments, the junction of the wall of the accommodating hole 211a and the wall of the threaded hole 200a forms the second chamfered surface 200e.

[0145] It should be noted that the first toothed disc portion 212, the second toothed disc portion 223, the elastic member 400, etc. in the accessory locking assembly of the third embodiment can also be applied to the accessory locking assembly of the second embodiment (e.g., Figure 8 and Figure 9 As shown, the working principles of the first gear plate 212, the second gear plate 223, and the elastic member 400 will not be elaborated here.

[0146] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0147] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An accessory locking assembly, characterized in that, include: A locking member, comprising an operating part, a threaded section, a mating section, and a limiting structure arranged sequentially in a first direction, wherein the outer diameter of the threaded section is larger than the outer diameter of the mating section. The main body is provided with a threaded hole and a stop structure. The threaded hole is used to engage with the threaded section. The length of the threaded hole is less than the length of the engaging section. The operating part and the limiting structure are respectively located on both sides of the threaded hole. The stop structure is located between the limiting structure and the threaded hole. The stop structure is used to engage with the stopping structure to limit the movement stroke of the locking member. A reset structure is disposed between the limiting structure and the main body. The reset structure provides a reset force to move the limiting structure away from the threaded hole, at least when the threaded section is separated from the threaded hole.

2. The accessory locking assembly according to claim 1, characterized in that, The reset structure provides a constant reset force within the travel range of the locking member, causing the limiting structure to apply a force away from the threaded hole.

3. The accessory locking assembly according to claim 1, characterized in that, The reset structure includes an elastic element, the two ends of which cooperate with the limiting structure and the stop structure respectively, and the reset structure is in an energy storage state at least when the threaded section is separated from the threaded hole.

4. The accessory locking assembly according to claim 3, characterized in that, The elastic element is in an energy storage state throughout the range of motion of the locking element.

5. The accessory locking assembly according to claim 1, characterized in that, The reset structure includes a first magnetic element and a second magnetic element, wherein the first magnetic element is disposed on the limiting structure; The second magnetic element is disposed on the stop structure, and the first magnetic element and the second magnetic element repel each other; or, the second magnetic element is disposed on the main body and located on the side of the limiting structure away from the mating section, and the first magnetic element and the second magnetic element attract each other.

6. The accessory locking assembly according to claim 1, characterized in that, The end face of the threaded section facing the mating section has a first chamfered surface, and the end face of the threaded hole facing the operating part has a second chamfered surface; when the mating section mates with the threaded hole, the first chamfered surface abuts against the second chamfered surface under the action of the reset force.

7. The accessory locking assembly according to claim 1, characterized in that, The limiting structure, the mating section, and the threaded section are an integral structure; or... The limiting structure and the mating section are separate structures, with the limiting structure connected to the mating section.

8. The accessory locking assembly according to claim 1, characterized in that, The locking component also includes a connecting section, which is connected to the end of the threaded section away from the limiting structure. The connecting section and the operating part are separate structures. The connecting section can pass through the threaded hole from the side of the threaded hole near the limiting structure and connect to the operating part.

9. The accessory locking assembly according to claim 1, characterized in that, The stop structure includes an insert, one end of which passes through the side wall of the body along a second direction and is inserted between the limiting structure and the threaded hole, the second direction intersecting the first direction.

10. The accessory locking assembly according to claim 1, characterized in that, The outer peripheral surface of the mating section is provided with a slot, and the limiting structure includes a retaining spring, which is engaged in the slot.

11. The accessory locking assembly according to any one of claims 1-10, characterized in that, The main body is provided with a socket for inserting an accessory. When the threaded section is threadedly engaged with the threaded hole and locked, the end of the locking member away from the operating part abuts against the accessory inserted into the socket and locks the accessory.

12. The accessory locking assembly according to claim 11, characterized in that, The extension direction of the socket is perpendicular to the first direction.

13. The accessory locking assembly according to any one of claims 1-10, characterized in that, The main body includes a first part and a second part. The first part includes a shaft segment. The second part is at least partially rotatably surrounding the outer periphery of the shaft segment. The threaded hole is disposed in the shaft segment. The locking member also has a retaining end face located between the threaded segment and the operating part. When the threaded segment is engaged and locked with the threaded hole, the retaining end face abuts against the second part and locks the second part.

14. An accessory locking assembly, characterized in that, include: The locking component includes an operating part, a mating section, a limiting end face, and a threaded section connected sequentially along a first direction; the diameter of the threaded section is larger than the diameter of the mating section. The main body is provided with a threaded hole, a receiving space and an opening. The receiving space connects the threaded hole and the opening. The threaded hole is used to thread with the threaded segment. The threaded segment passes through the opening. The operating part and the limiting end face are respectively located on both sides of the opening. The length of the receiving space in the first direction is not less than the length of the threaded segment. When the threaded segment is completely withdrawn from the threaded hole into the accommodating space, the limiting end face is used to cooperate with the main body stop to prevent the locking member from dislodging from the opening.

15. The accessory locking assembly according to claim 14, characterized in that, The diameter of the maximum rotation trajectory of the limiting end face is greater than the diameter of the inscribed circle of the opening.

16. The accessory locking assembly according to claim 14, characterized in that, The main body includes a first part and a second part. The first part includes a shaft segment. The second part is at least partially rotatably surrounding the outer periphery of the shaft segment. The threaded hole is disposed in the shaft segment. The locking member also has a retaining end face located between the mating section and the operating part. When the threaded section is engaged and locked with the threaded hole, the retaining end face abuts against the second part and locks the second part.

17. The accessory locking assembly according to claim 16, characterized in that, The second part is capable of moving axially along the shaft segment, and the abutting end face is used to push the second part to move axially along the shaft segment as the threaded segment is screwed into the threaded hole.

18. The accessory locking assembly according to claim 17, characterized in that, The second part includes a cylindrical portion and an end cap portion. The end cap portion is disposed at one axial end of the cylindrical portion. The cylindrical portion surrounds the outer periphery of the shaft segment. The end cap portion is located on the side of the shaft segment near the operating part. The opening is formed in the end cap portion. The abutting end face is used to abut and cooperate with the end cap portion.

19. The accessory locking assembly according to claim 18, characterized in that, The shaft segment is also provided with a receiving hole, which is located at one end of the threaded hole near the operating part. The inner diameter of the receiving hole is larger than the inner diameter of the threaded hole, and the length of the receiving hole is smaller than the length of the threaded segment. The sum of the axial movement stroke of the second part and the length of the receiving hole is not less than the length of the threaded segment. The end cap and the receiving hole together define the receiving space.

20. The accessory locking assembly according to claim 17, characterized in that, The first part further includes a first toothed disc portion, and the second part includes a second toothed disc portion. When the threaded segment is engaged and locked with the threaded hole, the first toothed disc portion and the second toothed disc portion mesh and connect along the first direction.

21. The accessory locking assembly according to any one of claims 17-20, characterized in that, The accessory locking assembly further includes an elastic member that constantly applies a force to the second part along the first direction away from the first part.

22. The accessory locking assembly according to any one of claims 14-20, characterized in that, The accessory locking assembly further includes a reset structure, which applies a reset force close to the threaded hole to the locking member, at least when the threaded section is separated from the threaded hole.

23. The accessory locking assembly according to claim 22, characterized in that, The reset structure includes an elastic element, which is disposed between the limiting end face and the main body.

24. The accessory locking assembly according to claim 23, characterized in that, The elastic element includes a disc spring or a spring sheet.

25. The accessory locking assembly according to claim 22, characterized in that, The end face of the threaded segment away from the mating segment has a first chamfered surface, and the end face of the threaded hole facing the operating part has a second chamfered surface; when the threaded segment is separated from the threaded hole, the first chamfered surface abuts against the second chamfered surface under the action of the restoring force.

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