Locking device and connector

Abstract

The application provides a locking device and a connector, and relates to the technical field of connectors. The locking device comprises a first component, a second component, a sliding sleeve and a handle. The first component comprises an elastic clamping jaw, and the elastic clamping jaw comprises a first clamping part and a second clamping part. The second component comprises a first clamping groove, the first clamping groove is clamped with the first clamping part, and a first locking mechanism is formed. The sliding sleeve is sleeved on the second component. The sliding sleeve comprises a second clamping groove, the second clamping groove is clamped with the second clamping part, and a second locking mechanism is formed. The handle is fixedly connected with the sliding sleeve and is used for driving the sliding sleeve to slide relative to the second component in a first direction or a second direction, so that the locking device is locked or unlocked. The locking device provided by the application can improve the locking reliability, operation convenience and environmental adaptability of the locking device when being unlocked.

Description

Technical Field

[0001] This application relates to the field of connector technology, and more particularly to a locking device and connector. Background Technology

[0002] Submarine wet-plug connectors are key components for enabling photoelectric signal conduction between deep-sea equipment, and their performance directly affects the stability and reliability of the entire marine engineering system. In the high-pressure, highly corrosive, and complex current environment of the deep sea, connectors must ensure that their internal components are not invaded by seawater and contaminants during insertion and removal, while maintaining stable signal transmission. Among these components, the locking device between the connector's plug and socket is crucial for achieving the connection and disconnection functions.

[0003] In practical applications, such as subsea oil and gas extraction platforms, frequent connection and replacement of underwater equipment via wet-plug connectors is required to ensure power supply and data transmission. This places high demands on locking devices, requiring rapid connection, highly reliable locking, and long-term stability. Currently, common locking devices employ mechanical jaws, elastic clips, or hydraulic drives to achieve locking and unlocking. Examples include jaws driven by a pressure-balanced oil chamber, double locking with a self-locking elastic arm and supporting spring, or jaws locking with a guide groove and inclined surface.

[0004] However, although the above-mentioned locking device can achieve basic locking function, it still faces the risk of accidental unlocking due to non-human factors (such as biological attachment, water flow impact, siltation, etc.) in the complex environment of the deep sea. At the same time, its locking reliability, ease of operation and environmental adaptability are low under high frequency of insertion and removal. Summary of the Invention

[0005] This application provides a locking device and connector to solve the technical problems of unintended unlocking of the connector's locking device in extreme deep-sea environments, as well as low locking reliability, ease of operation, and environmental adaptability.

[0006] To achieve the above objectives, in a first aspect, this application provides a locking device, comprising: a first component, a second component, a sliding sleeve, and a handle; the first component includes an elastic claw, the elastic claw including a first engaging portion and a second engaging portion; the second component includes a first slot, the first slot engaging with the first engaging portion to form a first locking mechanism; the sliding sleeve is sleeved on the second component; the sliding sleeve includes a second slot, the second slot engaging with the second engaging portion to form a second locking mechanism; wherein the second slot and the first slot longitudinally overlap, causing the first locking mechanism and the second locking mechanism to longitudinally overlap. The handle is fixedly connected to the sliding sleeve and is used to drive the sliding sleeve to slide relative to the second component in a first direction, so that the first locking part is engaged in the first slot to lock the first locking mechanism, and to drive the second locking part to engage in the second slot to lock the second locking mechanism; or, the handle is used to drive the sliding sleeve to slide relative to the second component in a second direction, so that the second locking part is disengaged from the second slot to unlock the second locking mechanism, thereby causing the elastic claw to deform so that the first locking part is disengaged from the first slot to unlock the first locking mechanism; wherein, the first direction and the second direction are opposite.

[0007] The locking device provided in this application employs a first locking mechanism consisting of a first engaging portion and a first slot, and a second locking mechanism consisting of a second engaging portion and a second slot, which are longitudinally overlapped to form a double locking mechanism. During unlocking, the sliding sleeve is slid first by operating the handle, causing the second locking mechanism to unlock, which in turn causes the elastic claw to deform, ultimately unlocking the first locking mechanism. This structure effectively prevents accidental disengagement due to failure of a single locking point or external impact, avoiding unintended unlocking of the locking device. Furthermore, the user only needs to slide the handle back and forth to achieve the locking or unlocking process, improving the locking reliability, ease of operation, and environmental adaptability of the locking device.

[0008] In one optional embodiment, the first snap-fit ​​portion includes a locking surface, and the first slot includes a bearing surface; when the first locking mechanism is locked, the locking surface and the bearing surface form a first preset angle to provide axial locking force.

[0009] In the above embodiments, by setting the locking surface and the bearing surface to form a first preset angle, a large axial locking force is generated when the first locking mechanism locks, which can avoid the phenomenon of mis-locking caused by non-human axial interference forces (such as water flow impact, equipment dragging, biological attachment pulling), and improve the locking reliability and environmental adaptability of the locking device.

[0010] In one optional embodiment, the second snap-fit ​​portion includes two snap-fit ​​tabs, which are symmetrically distributed about the first snap-fit ​​portion as an axis of symmetry.

[0011] In the above embodiments, using two symmetrically distributed snap-fit ​​pieces on a second snap-fit ​​portion can improve the locking stability of the first locking mechanism, thereby improving the locking reliability of the locking device.

[0012] In one alternative embodiment, the protruding end of the first snap-fit ​​portion points toward the axis of the first component; the two snap-fit ​​tabs extend circumferentially along the first component.

[0013] In the above embodiments, since the protruding end of the first locking part points to the axis, during the unlocking process, the elastic claw generates elastic deformation toward the axis, which allows the protruding end to exit from the first slot; the two locking pieces extend along the circumference of the first component, which can increase the contact area between the second locking part and the second slot on the sliding sleeve, and the contact force is evenly distributed, thereby improving the locking reliability and stability of the locking device.

[0014] In one optional embodiment, the second slot includes two inclined guide surfaces for guiding the second latching portion to slide into or out of the second slot; the two inclined guide surfaces are symmetrically distributed; the inclination angle of the two inclined guide surfaces is a second preset angle.

[0015] In the above embodiments, the two symmetrically distributed inclined guide surfaces are set to a second preset angle with a certain degree of inclination, which can facilitate the smooth sliding of the second locking part into or out of the second locking groove, improve the smoothness of locking or unlocking of the second locking mechanism, and thus improve the ease of operation of the locking device.

[0016] In one alternative implementation, the two snap-fit ​​tabs slide along two inclined guide surfaces, respectively.

[0017] In the above embodiments, the two inclined guide surfaces can simultaneously and uniformly guide and constrain the movement trajectory of the two locking pieces from both sides, ensuring that the locking pieces are subjected to balanced force when sliding into or out of the second locking slot, avoiding skewness, biting or jamming caused by unilateral force, and improving the reliability and stability of the locking device.

[0018] In one optional embodiment, the first component further includes: a mounting slot; one end of the mounting slot is provided with a threaded hole; the elastic claw further includes: a fixing thread; the threaded hole and the fixing thread are locked together to fix the elastic claw on the first component.

[0019] In the above embodiment, the elastic claw is fixed to the first component by the engagement of the threaded hole and the fixed thread, thereby improving the stability of the first component. This prevents the elastic claw from loosening or falling off in the deep sea environment due to external forces such as water flow impact and vibration, thus improving the locking reliability of the locking device.

[0020] In one optional embodiment, the first component is provided with at least two elastic claws and at least two mounting slots spaced apart along its circumferential direction; the second component is provided with at least two first slots spaced apart along its circumferential direction; the sliding sleeve is provided with at least two second slots spaced apart along its circumferential direction; the number of elastic claws, mounting slots, first slots and second slots are all equal.

[0021] In the above embodiments, the first component is provided with multiple elastic claws and mounting slots spaced apart along the circumference, the second component is provided with multiple first slots, and the sliding sleeve is provided with multiple second slots, and the number of each is equal. The above structures are evenly distributed circumferentially, which can make the locking force act evenly on the circumferential direction of the locking device, avoid uneven local force, and further improve the locking reliability and stability of the locking device.

[0022] In one optional embodiment, the sliding sleeve is provided with a guide mechanism; the guide mechanism includes a limiting hole and a fixing member; the fixing member passes through the limiting hole and connects the sliding sleeve and the second component, for limiting the sliding sleeve to move only along the axial direction of the second component.

[0023] In the above embodiments, the sliding sleeve is provided with a guide mechanism including a limiting hole and a fixing member, which can limit the movement range of the sliding sleeve, so that the sliding sleeve can only move along the axial direction of the second component. This improves the accuracy and stability of the sliding sleeve's movement trajectory, avoids deviation of the sliding sleeve during sliding, and ensures that the second locking mechanism and the first locking mechanism can accurately lock and unlock. Furthermore, it allows the locking device to prioritize unlocking the second locking mechanism, thereby providing unlocking force to the first locking mechanism, saving the force required for the overall unlocking of the locking device, and improving the ease of operation of the locking device.

[0024] In one alternative embodiment, the sliding sleeve further includes a damping ring; the damping ring is disposed inside the sliding sleeve at the point where it engages with the second component, and is used to provide damping when the sliding sleeve slides along the second component.

[0025] In the above embodiments, a damping ring is provided at the connection point between the sliding sleeve and the second component. This provides accurate positioning and appropriate damping when the operating handle drives the sliding sleeve to slide, preventing jamming during the sliding process, improving the controllability of the sliding speed and force of the sliding sleeve, and enhancing the accuracy of the operation.

[0026] Secondly, this application also provides a connector, including a first connecting end and a second connecting end; the first connecting end and the second connecting end are locked or unlocked by a locking device as described in any of the first aspects.

[0027] It is understandable that the beneficial effects of the technical solution of the second aspect provided above can be referred to the beneficial effects of the first aspect and any of its optional implementation methods, and will not be repeated here. Attached Figure Description

[0028] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a cross-sectional view of a hinged connector structure.

[0030] Figure 2 This is a cross-sectional view of a connector structure based on elastic snap-fit ​​and support spring;

[0031] Figure 3 This is a cross-sectional view of a connector structure based on claws, slots, and unlocking ramps;

[0032] Figure 4 This is a schematic diagram of the structure of a locking device in the unlocked state, provided in an embodiment of this application.

[0033] Figure 5 This is a schematic diagram of the structure of an elastic claw provided in an embodiment of this application;

[0034] Figure 6 This is a schematic diagram of the structure of a second component provided in an embodiment of this application;

[0035] Figure 7 A partial structural diagram of a sliding sleeve provided in an embodiment of this application;

[0036] Figure 8 This is a schematic diagram of a locking device in a locked state, provided in an embodiment of this application.

[0037] Figure 9 An axial sectional view of a first locking mechanism in a locked state, provided in an embodiment of this application;

[0038] Figure 10 An axial sectional view of a second locking mechanism in a locked state, provided in an embodiment of this application;

[0039] Figure 11 This is a partial structural diagram of the first component in the locked state provided in an embodiment of this application;

[0040] Figure 12 This is a schematic diagram of a sliding sleeve provided in an embodiment of this application.

[0041] Illustration:

[0042] 100-First socket; 1001-Pressure balancing oil chamber; 1002-Oil chamber front plate; 1003-Fixing claw; 1004-Socket photoelectric ferrule;

[0043] 200 - First plug; 2001 - Claw slot; 2002 - Plug photoelectric ferrule;

[0044] 300 - Second socket; 3001 - Flexible snap-fit; 3002 - Support spring;

[0045] 400 - Second plug; 4001 - Housing; 4002 - Unlocking ring;

[0046] 5001 - Claw screw; 5002 - Claw; 5003 - Inner housing of plug; 5004 - Outer housing of plug; 5005 - Guide groove;

[0047] 1-First component; 11-Elastic claw; 111-First locking part; 112-Second locking part; 1121-Locking piece; 113-Fixing thread; 114-Intermediate connecting part; 12-Mounting slot; 121-Threaded hole;

[0048] 2-Second component; 21-First slot;

[0049] 3-Sliding sleeve; 31-Second slot; 311-Inclined guide surface; 32-Limiting hole; 33-Fixing component; 34-Damping ring;

[0050] 4-Handle. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are all within the protection scope of this application.

[0052] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0053] Furthermore, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0054] To facilitate understanding of the plan, the following explanations are provided for relevant terms:

[0055] Connector: A detachable interface device used to establish a reliable physical connection and signal / power transmission path between two independent devices, components, or cables. Its core function is to enable repetitive "connection" and "disconnection" operations while ensuring transmission stability and interface sealing.

[0056] Locking device: A mechanical structure used to reliably secure two or more components together, preventing them from accidentally separating or moving due to external forces. Its core function is to provide controllable locking and unlocking operations, ensuring the security and stability of the connection.

[0057] Wet-plug connectors are used in deep-sea equipment connection systems to enable photoelectric signal conduction and power transmission between deep-sea devices. In the high-pressure, highly corrosive, and complex current environment of the deep sea, wet-plug connectors must ensure that their internal seals are not compromised during insertion and removal to effectively prevent seawater and contaminants from entering, while maintaining stable signal transmission. The locking mechanism between the connector's plug and socket is a key component for achieving connection and disconnection.

[0058] In some embodiments, to ensure that the wet-plug connector can be frequently connected and replaced with underwater equipment to achieve stable transmission of photoelectric signals, the locking device is required to achieve quick connection and have high locking reliability and stability.

[0059] Figure 1 This is a cross-sectional view of a hinged connector structure.

[0060] like Figure 1 As shown, the hinged connector includes a first socket 100 and a first plug 200 that can be plugged into each other. The hinged connector adopts a two-stage mating principle of "mechanical locking first, then electrical connection". The first plug 200 pushes the pressure balancing oil chamber 1001 inside the housing of the first socket 100, causing the pressure balancing oil chamber 1001 to compress and store energy; when the pressure balancing oil chamber 1001 is in place, the front plate 1002 of the oil chamber moves forward under the action of the reset force, causing the fixing claws 1003 on its periphery to extend and lock with the claw grooves 2001 on the housing of the first plug 200, realizing the sealing and fixing of the housing. After the housing is fixed, the first plug 200 continues to push the plunger inside the first socket 100. The umbrella-shaped curved surface at the rear end of the plunger radially expands multiple socket photoelectric ferrules 1004, so that the socket photoelectric ferrules 1004 precisely align with the corresponding plug photoelectric ferrules 2002 fixed inside the first plug 200, thereby realizing photoelectric composite connection.

[0061] In other embodiments, to improve the stability of connector self-locking and connection reliability, a connector based on elastic snap-fit ​​and support spring is also designed.

[0062] Figure 2 This is a cross-sectional view of a connector structure based on elastic snap-fit ​​and support spring.

[0063] like Figure 2 As shown, the connector based on elastic snaps and supporting springs includes a second socket 300 and a second plug 400. The snap-fit ​​structure of the elastic snap 3001 achieves self-locking based on the deformation of its elastic arm: multiple elastic snaps 3001 on the outer shell 4001 of the second plug 400, through the elastic deformation of their elastic arms, allow the heads of the elastic snaps 3001 to engage with the socket of the second socket 300, completing the fixed connection between the second plug 400 and the second socket 300. Furthermore, the supporting spring 3002 abuts against the elastic snaps 3001, providing additional support force, forming a first layer of locking between the elastic snaps 3001 and the socket, and a second layer of protection for the supporting spring 3002, improving self-locking stability. During unlocking, an unlocking ring 4002 is fitted onto the outer shell 4001 of the second plug 400. By moving the unlocking ring 4002, pressure is applied to the abutting portion of the elastic snaps 3001, causing the heads of the elastic snaps 3001 to disengage from the socket, thus unlocking the connector.

[0064] In some embodiments, the plug and socket may not align accurately during the connector connection process. Therefore, to improve the accuracy of plug and socket alignment and avoid mis-insertion, a connector based on claws, slots, and unlocking bevels has been designed.

[0065] Figure 3 This is a cross-sectional view of a connector structure based on claws, slots, and unlocking ramps.

[0066] like Figure 3 As shown, the connector based on claws, slots, and unlocking bevels uses claw screws 5001 to fix claws 5002 to the inner shell 5003 of the plug. The physical interference between claws 5002 and the fitted outer shell 5004 of the plug achieves axial positioning of the outer shell 5004, ensuring the relative stability of the internal pins and sealing components in the non-interlocking state. During insertion and removal, claws 5002 move along the guide groove 5005 on the outer shell 5004 and contact friction with the replaceable plastic scraper layer at the front end of the socket. During unlocking, the unlocking bevel mechanism allows for mechanical release through manual operation.

[0067] In some embodiments, although the three types of connectors described above can achieve basic locking functions, they still face the risk of accidental unlocking due to non-human factors (such as biological attachment, water flow impact, siltation, etc.) in the complex environment of the deep sea. At the same time, under high-frequency insertion and removal conditions, their locking reliability, ease of operation and environmental adaptability are low.

[0068] To address the aforementioned issues, this application proposes a locking device employing a dual locking mechanism. This mechanism consists of a first locking mechanism and a second locking mechanism formed by elastic claws engaging with a first and a second slot. This creates a longitudinally overlapping double locking effect when the device is locked. Furthermore, unlocking requires only operating the handle to sequentially unlock the second and first locking mechanisms, effectively preventing accidental disengagement. Using the locking device provided in this application for locking and unlocking the connector improves its locking reliability, ease of operation, and environmental adaptability in deep-sea environments.

[0069] Figure 4 This is a schematic diagram of the structure of a locking device in the unlocked state, provided in an embodiment of this application. Figure 5 This is a schematic diagram of the structure of an elastic claw provided in an embodiment of this application; Figure 6 This is a schematic diagram of the structure of a second component provided in an embodiment of this application; Figure 7 This is a partial structural diagram of a sliding sleeve provided in an embodiment of this application.

[0070] like Figures 4-7 As shown, the locking device includes: a first component 1, a second component 2, a sliding sleeve 3, and a handle 4; the first component 1 includes an elastic claw 11, which includes a first engaging portion 111 and a second engaging portion 112; the second component 2 includes a first slot 21, which engages with the first engaging portion 111 to form a first locking mechanism; the sliding sleeve 3 is sleeved on the second component 2; the sliding sleeve 3 includes a second slot 31, which engages with the second engaging portion 112 to form a second locking mechanism; wherein, the second slot 31 and the first slot 21 overlap longitudinally, so that the first locking mechanism and the second locking mechanism overlap longitudinally; the handle 4 and The sliding sleeve 3 is fixedly connected and used to drive the sliding sleeve 3 to slide relative to the second component 2 in a first direction, so that the first locking part 111 is engaged into the first slot 21 to lock the first locking mechanism, and to drive the second locking part 112 into the second slot 31 to lock the second locking mechanism; or, the handle 4 is used to drive the sliding sleeve 3 to slide relative to the second component 2 in a second direction, so that the second locking part 112 is disengaged from the second slot 31 to unlock the second locking mechanism, thereby causing the elastic claw 11 to deform so that the first locking part 111 is disengaged from the first slot 21 to unlock the first locking mechanism; wherein, the first direction and the second direction are opposite.

[0071] Figure 8 This is a schematic diagram of a locking device in the locked state, provided as an embodiment of this application.

[0072] In some embodiments, the locking device achieves locking as follows: the user pushes handle 4 towards... Figure 8Sliding in the direction of the first arrow S1 (i.e. the first direction), since the handle 4 is fixedly connected to the sliding sleeve 3, the handle 4 drives the sliding sleeve 3 to slide relative to the second component 2 in the direction of the first arrow S1 until the first locking part 111 engages with the first locking groove 21, thereby locking the first locking mechanism. The second locking part 112 engages with the second locking groove 31, thereby locking the second locking mechanism.

[0073] It should be noted that, by Figure 7 It can be seen that the first slot 21 and the second slot 31 overlap in the longitudinal direction. Therefore, when both the first locking mechanism and the second locking mechanism are in the locked state, the locking device can form a double-locking mechanism at the same position in the axial direction.

[0074] The following describes in detail the dual locking mechanism of the locking device provided in the embodiments of this application in the locked state.

[0075] Figure 9 An axial cross-sectional view of a first locking mechanism in the locked state, provided for an embodiment of this application.

[0076] like Figure 9 As shown, the elastic claw 11 is disposed on the first component 1, and the sliding sleeve 3 is sleeved on the second component 2. In the locked state, the first engaging portion 111 on the elastic claw 11 is inserted into the first engaging groove 21 on the second component 2, and the two engage to form the first locking mechanism.

[0077] It should be understood that the shape design of the first engaging portion 111 matches the first slot 21, forming a tight engaging structure. This prevents the elastic claw 11 from dislodging from the first slot 21, allowing the first locking mechanism to maintain a stable locking state even under significant external force, thus improving the locking reliability and stability of the locking device. Furthermore, the matching shapes of the first engaging portion 111 and the first slot 21 ensure that the first engaging portion 111 can smoothly enter the first slot 21 when engaged.

[0078] In some embodiments, to improve the locking stability of the first locking mechanism, the locking angle and material of the first locking mechanism can be adaptively set.

[0079] In one implementation, the first latching portion 111 includes a locking surface, and the first latching groove 21 includes a bearing surface; when the first locking mechanism is locked, the locking surface and the bearing surface form a first preset angle to provide axial locking force.

[0080] For example, the first preset angle is 90 degrees, that is, the locking surface is perpendicular to the bearing surface. At this time, when an axial tensile force is applied to the locking device, the perpendicular relationship between the locking surface and the bearing surface can convert the tensile force into pressure on the elastic claw 11, so that the elastic claw 11 is more tightly engaged with the first slot 21, thereby enhancing the axial locking capability of the first locking mechanism and preventing the first engaging part 111 from falling out of the first slot 21 due to the axial tensile force.

[0081] In another implementation, the first snap-fit ​​part 111 and the first snap-fit ​​groove 21 are made of a high-hardness metal.

[0082] For example, the first latching portion 111 and the first slot 21 are made of titanium alloy. Because titanium alloy has high strength, low density, and good corrosion resistance, it can improve the wear resistance and deformation resistance of the first latching portion 111 and the first slot 21, ensuring that the first locking mechanism maintains a stable locking effect during long-term use and frequent insertion and removal. Furthermore, the corrosion resistance of titanium alloy can prevent seawater corrosion from affecting the performance and service life of the first locking mechanism.

[0083] It should be understood that the first snap-fit ​​portion 111 and the first snap-fit ​​groove 21 can also be made of other materials, as long as they have the hardness to prevent damage from external forces. This application embodiment does not impose specific limitations.

[0084] In some embodiments, the first slot 21 and the second slot 31 overlap in the longitudinal direction, and the first engaging portion 111 and the second engaging portion 112 are both elastic claws 11. Therefore, when the first engaging portion 111 and the first slot 21 engage, the second engaging portion 112 and the second slot 31 also engage, forming a second locking mechanism.

[0085] Figure 10 An axial cross-sectional view of a second locking mechanism in the locked state, provided in an embodiment of this application.

[0086] like Figure 10 As shown, in the locked state, the second engaging portion 112 on the elastic claw 11 is embedded in the second slot 31 on the sliding sleeve 3, and the two engage to form a second locking mechanism.

[0087] It should be understood that the shape design of the second locking part 112 matches the second locking groove 31, which can form a stable locking relationship, prevent the elastic claw 11 from coming out of the second locking groove 31, and enable the second locking mechanism to maintain a stable locking effect when facing complex deep-sea environment external forces, further improving the locking reliability of the locking device.

[0088] In some embodiments, to improve the locking stability of the second locking mechanism, two second locking portions 112 can be symmetrically arranged on the same elastic claw 11.

[0089] In one implementation, for example... Figure 5 As shown, the second snap-fit ​​portion 112 includes two snap-fit ​​pieces 1121, which are symmetrically distributed about the first snap-fit ​​portion 111 as the axis of symmetry.

[0090] For example, the two latching pieces 1121 on the elastic claw 11 are identical in shape and size, and are adapted to the shape of the second slot 31. When the elastic claw 11 engages with the second slot 31, the two latching pieces 1121 are simultaneously embedded in the second slot 31. This symmetrical engagement method allows the elastic claw 11 to be evenly stressed within the second slot 31, preventing the elastic claw 11 from dislodging from the second slot 31 due to uneven stress, thereby improving the locking stability of the second locking mechanism.

[0091] In some embodiments, to improve the smoothness of the second slot 31 and allow the second latching portion 112 to slide smoothly into the second slot 31 to form a latching structure, the second slot 31 can be configured as a component including an inclined guide surface 311. Furthermore, to correspond to the two latching pieces 1121 symmetrically arranged on the elastic claw 11, two inclined guide surfaces 311 are also symmetrically arranged on the second slot 31.

[0092] In one implementation, for example... Figure 7 As shown, the second slot 31 includes two inclined guide surfaces 311 for guiding the second latching part 112 to slide into or out of the second slot 31; the two inclined guide surfaces 311 are symmetrically distributed; the inclination angle of the two inclined guide surfaces 311 is a second preset angle.

[0093] For example, the second preset angle is 45 degrees. At this time, the inclined guide surface 311 can provide a good guiding effect for the sliding in and out of the second latching part 112, and will not increase the difficulty of unlocking due to the excessive tilt angle.

[0094] It should be noted that the second preset angle can also be other angles, as long as the second locking part 112 can slide smoothly into and out of the second slot along the inclined guide surface 311. This application embodiment does not impose specific limitations.

[0095] In one implementation, the two snap-fit ​​pieces 1121 slide along the two inclined guide surfaces 311 respectively.

[0096] For example, during the locking process of the locking device, the user pushes the handle 4, causing the sliding sleeve 3 to move towards the... Figure 8Sliding in the direction of the first arrow S1 shown causes the two locking tabs 1121 on the elastic claw 11 to begin contacting the corresponding two inclined guide surfaces 311 on the second slot 31. As the sliding sleeve 3 slides, the two locking tabs 1121 gradually slide into the interior of the second slot 31 along the inclined guide surfaces 311. When the locking tabs 1121 have completely slid into the second slot 31, the second locking mechanism completes the locking.

[0097] As another example, during the unlocking process of the locking device, the user pulls the handle 4, causing the sliding sleeve 3 to move towards the... Figure 8 As shown by the second arrow S2, the two locking pieces 1121 slide out of the second slot 31 along the inclined guide surface 311 under the elastic action of the elastic claw 11. Since the inclined guide surface 311 is set to a second preset angle, the unlocking process can be made smoother, improving the unlocking convenience of the locking device.

[0098] In some embodiments, since the first locking groove 21 and the second locking groove 31 overlap longitudinally, the first locking mechanism and the second locking mechanism form a double locking effect at the same position in the axial direction. When an external impact force is applied to the locking device, the first locking mechanism and the second locking mechanism can jointly bear the impact force. The first locking part 111 and the second locking part 112 respectively distribute the impact force to the first locking groove 21 and the second locking groove 31, avoiding damage caused by excessive stress on a single locking part, and improving the locking reliability and environmental adaptability of the locking device in the complex environment of the deep sea.

[0099] In some embodiments, to improve the stability and ease of operation of the sliding sleeve 3 when it slides along the second component 2, a damping ring may also be provided on the sliding sleeve 3.

[0100] In one implementation, for example... Figure 9 As shown, the sliding sleeve 3 also includes a damping ring 34; the damping ring 34 is disposed inside the sliding sleeve 3 at the connection point with the second component 2, and is used to provide damping when the sliding sleeve 3 slides along the second component 2.

[0101] For example, the damping ring 34 can be a damping rubber ring, disposed around the inside of the sliding sleeve 3. When the sliding sleeve 3 slides along the second component 2, the damping rubber ring generates friction with the surface of the second component 2, providing a certain damping for the sliding of the sliding sleeve 3. This damping effect can improve the smoothness of the sliding of the sliding sleeve 3, preventing the sliding sleeve 3 from becoming difficult to control due to excessive sliding speed, or from getting stuck due to excessive friction between the sliding sleeve 3 and the second component 2, thus improving the stability and convenience of operation. Furthermore, the damping rubber ring can also provide a guiding effect for the sliding of the sliding sleeve 3 on the second component 2, improving the accuracy of the locking device's insertion and removal.

[0102] It should be understood that the damping ring 34 can also be made of other materials, as long as it can provide damping and guidance for the sliding sleeve 3. This application embodiment does not impose specific limitations.

[0103] The following describes in detail the unlocking process of the dual-locking mechanism of the locking device provided in the embodiments of this application.

[0104] Figure 11 This is a partial structural diagram of the first component in the locked state, provided in an embodiment of this application.

[0105] like Figure 11 As shown, the elastic claw 11 on the first component 1 also includes a deformable intermediate connecting part 114, which is connected to the second locking part 112.

[0106] In some embodiments, the locking device unlocks by relying on the deformation of the intermediate connecting portion 114 on the elastic claw 11 during the unlocking process.

[0107] In one implementation, the locking device unlocks as follows: the user pulls handle 4 towards... Figure 8 Sliding in the direction of the second arrow S2 (i.e., the second direction), since the handle 4 is fixedly connected to the sliding sleeve 3, the handle 4 drives the sliding sleeve 3 to slide relative to the second component 2 in the direction of the second arrow S2. The second slot 31 on the sliding sleeve 3 moves relative to the second engaging part 112 on the elastic claw 11. At this time, the two engaging pieces 1121 on the second engaging part 112 gradually slide out of the second slot 31 along the two inclined guide surfaces 311 on the second slot 31, thereby unlocking the second locking mechanism.

[0108] Furthermore, when the two latching pieces 1121 slide out of the second latching slot 31, since the second latching part 112 is connected to the intermediate connecting part 114, as the sliding sleeve 3 slides, the inclined guide surface 311 of the second latching slot 31 will exert an outward force on the second latching part 112, causing the intermediate connecting part 114 to deform. When the intermediate connecting part 114 deforms, the overall force state of the elastic claw 11 changes. At this time, if the handle 4 is pulled and slid in the direction of the second arrow S2, the first latching part 111 can be gradually disengaged from the first latching slot 21, thereby unlocking the first locking mechanism.

[0109] It should be noted that the direction of the first arrow S1 (first direction) and the direction of the second arrow S2 (second direction) mentioned above are opposite, representing the locking direction and unlocking direction of the locking device, respectively. That is, the user pushes the handle 4 to lock and the user pulls the handle 4 to unlock, which are two axially opposite directions.

[0110] It should be understood that during the unlocking process of the locking device, the sliding motion of the sliding sleeve 3 is transformed into the deformation of the intermediate connecting part 114, thereby realizing the sequential unlocking of the second locking mechanism and the first locking mechanism. Since the tilt angle of the inclined guide surface 311 is set to the second preset angle, it is convenient for the second latching part 112 to slide smoothly out of the second slot 31. Therefore, when the user unlocks the second locking mechanism by pulling the handle 4, no excessive force is required. After the second locking mechanism is unlocked, due to the deformation of the intermediate connecting part 114, the first latching part 111 can be smoothly driven to disengage from the first slot 21, thereby unlocking the first locking mechanism and finally unlocking the dual locking mechanism. Therefore, the locking device provided in this application embodiment can not only improve the locking stability and reliability in the locked state, but also reduce the unlocking difficulty during the unlocking process, improving the convenience of high-frequency insertion and removal operations for users in deep-sea environments.

[0111] In some embodiments, the placement of the elastic claw 11 can be optimized to improve the convenience of the unlocking process.

[0112] In one implementation, the protruding end of the first snap-fit ​​portion 111 points towards the axis of the first component 1; the two snap-fit ​​pieces 1121 extend circumferentially along the first component 1.

[0113] For example, when the user pulls the handle 4 to slide the sliding sleeve 3 in the direction of the second arrow S2, the locking piece 1121 on the second locking part 112 slides out of the second slot 31 along the inclined guide surface 311. Since the two locking pieces 1121 extend circumferentially along the first component 1, the resistance encountered by the second locking part 112 when sliding outward is reduced, making it easier to disengage from the second slot 31. Furthermore, the protruding end of the first locking part 111 points towards the axis of the first component 1, allowing the intermediate connecting part 114 on the elastic claw 11 to deform away from the axis, thereby causing the protruding end of the first locking part 111 to disengage from the first slot 21, thus unlocking the first locking mechanism.

[0114] In some embodiments, in order to improve the installation stability of the elastic claw 11 on the first component 1 and thus improve the overall stability of the locking device, a fixing mechanism can also be provided for the elastic claw 11.

[0115] In one implementation, for example... Figure 5 and Figure 9 As shown, the first component 1 also includes: a mounting slot 12; one end of the mounting slot 12 is provided with a threaded hole 121; the elastic claw 11 also includes: a fixing thread 113; the threaded hole 121 and the fixing thread 113 are locked together, so that the elastic claw 11 is fixed on the first component 1.

[0116] For example, the first component 1 includes a mounting slot 12 for mounting a resilient claw 11. Two threaded holes 121 are arranged side-by-side in the mounting slot 12, and the resilient claw 11 has two parallel fixing threads 113 at positions corresponding to the mounting slot 12. When installing the resilient claw 11, it is aligned with the mounting slot 12, the fixing threads 113 are aligned with the threaded holes 121, and then tightened. This ensures the resilient claw 11 is stably fixed to the first component 1, preventing loosening or displacement of the resilient claw 11 during long-term use and improving the installation stability of the resilient claw 11 on the first component 1.

[0117] It should be noted that the number of fixing threads 113 and threaded holes 121 can also be other, as long as the number of the two is equal and the elastic claws 11 can remain stable on the first component 1. This application embodiment does not impose specific limitations.

[0118] In some embodiments, the first locking mechanism formed by the first engaging portion 111 and the first slot 21 of the elastic claw 11, and the second locking mechanism formed by the second engaging portion 112 and the second slot 31 of the elastic claw 11, together constitute a double locking mechanism, which is the core component of the locking device. However, it is difficult to guarantee the locking stability of the locking device by setting only one double locking mechanism. Therefore, in order to improve the locking stability, at least two elastic claws 11 can be provided circumferentially at intervals on the first component 1, and at least two mounting slots 12 can be provided accordingly for mounting the elastic claws 11. Correspondingly, at least two first slots 21 are provided circumferentially at intervals at corresponding positions on the second component 2; and at least two second slots 31 are provided circumferentially at intervals at corresponding positions on the sliding sleeve 3. The number of elastic claws 11, mounting slots 12, first slots 21 and second slots 31 are all equal.

[0119] For example, two elastic claws 11 are evenly spaced along the circumference on the first component 1, and two mounting slots 12 are correspondingly provided on the first component 1. Two first slots 21 are evenly spaced along the circumference at corresponding positions on the second component 2, and two second slots 31 are evenly spaced along the circumference at corresponding positions on the sliding sleeve 3. When a locking operation is performed, the first engaging portion 111 on each elastic claw 11 engages with the corresponding first slot 21, and the second engaging portion 112 engages with the corresponding second slot 31, forming two double locking mechanisms. This improves the uniformity of the force on the locking device in the axial direction, avoids locking failure due to excessive force at a single point, and improves the overall locking stability and reliability of the locking device.

[0120] In some embodiments, to ensure that the locking device can unlock the second locking mechanism first during the unlocking process, and then the second locking mechanism drives the first locking mechanism to unlock, thus saving the force used by the user when unlocking the first locking mechanism, and ensuring that the force of the user pushing and pulling the handle 4 can be fully applied to the locking device, avoiding wasted force during the locking and unlocking process, and improving the convenience of user use, a guide mechanism can be provided on the sliding sleeve 3 to guide the locking device to unlock along the fixed unlocking sequence in which the second locking mechanism is unlocked first, and to restrict the sliding sleeve 3 to move only axially in the first direction or the second direction.

[0121] In one implementation, the guiding mechanism includes a limiting hole 32 and a fixing member 33. The limiting hole 32 may be an oblong hole, a square hole, a rectangular hole, etc.

[0122] Figure 12 This is a schematic diagram of a sliding sleeve provided in an embodiment of this application.

[0123] like Figure 12 As shown, the sliding sleeve 3 is provided with a guide mechanism consisting of an elongated circumferential limiting hole 32 and a fixing member 33; the fixing member 33 passes through the limiting hole 32 and connects the sliding sleeve 3 and the second component 2, and is used to restrict the sliding sleeve 3 to move only along the axial direction of the second component 2.

[0124] For example, the limiting hole 32 is a hole-like structure with a specific length, the fixing member 33 is a bolt, and the longitudinal height of the limiting hole 32 is equal to the diameter of the fixing member 33. When the fixing member 33 passes through the limiting hole 32 and is connected to the second component 2, the sliding sleeve 3 forms a connection with the second component 2. Since the length direction of the limiting hole 32 is consistent with the axial direction of the second component 2, and the longitudinal height of the limiting hole 32 is equal to the diameter of the fixing member 33, the fixing member 33 can restrict the limiting hole 32 from moving up and down in the longitudinal direction. Therefore, the sliding sleeve 3 can only move along the length range of the limiting hole 32 in the axial direction, that is, along the first direction or the second direction.

[0125] When the user pushes the handle 4, the handle 4 causes the sliding sleeve 3 to slide axially in the first direction along the limiting hole 32, thereby locking the locking device. When the user pulls the handle 4, the sliding sleeve 3 slides axially in the second direction along the limiting hole 32, thereby unlocking the locking device. This saves the force used by the user during the unlocking process and prevents the sliding sleeve 3 from shifting during user operation, ensuring that the force exerted by the user pushing and pulling the handle 4 is fully applied to the locking device, thus improving the convenience of user operation.

[0126] It should be understood that, since the limiting hole 32 and the fixing member 33 also play a role in fixing the sliding sleeve 3, the combination of the two can improve the stability of the sliding sleeve 3 and further improve the locking reliability of the locking device.

[0127] It should be noted that the fixing member 33 of the guide mechanism can also take other forms, such as a protruding structure, as long as the second locking mechanism of the locking device is unlocked first during the unlocking process and the sliding sleeve 3 is restricted from moving along the axis of the second component 2. No specific restrictions are made in this embodiment.

[0128] In some embodiments, since the handle 4 of the locking device is susceptible to damage from external forces during deep-sea operations, the handle 4 can be made of a material suitable for seabed operations in order to improve its durability.

[0129] For example, the handle 4 is made of polyurethane. Polyurethane has high elasticity, high strength, and high abrasion resistance, and can withstand harsh conditions such as high pressure, low temperature, and corrosion in deep-sea environments. Using polyurethane to make the handle 4 not only prevents the handle 4 from breaking or being damaged under external forces, but also gives the handle 4 good flexibility, improving user comfort.

[0130] In some embodiments, the locking device provided in this application has high versatility and can be applied to various insertion and removal mechanisms of different shapes, such as round and square. As long as the elastic claw 11, the first slot 21, and the second slot 31 are set in appropriate positions and numbers, this application does not impose specific limitations.

[0131] In some embodiments, this application also provides a connector, including a first connecting end and a second connecting end; the first connecting end and the second connecting end are locked or unlocked by a locking device as described in any of the above embodiments. The first connecting end and the second connecting end of the connector provided in this application achieve a reliable connection using the aforementioned locking device. When applied to complex deep-sea operating environments, the first connecting end and the second connecting end of the connector can be securely connected under the action of the locking device, avoiding accidental locking caused by non-human factors such as entanglement with seabed organisms, improving the reliability and stability of the connection, and thus ensuring stable transmission of photoelectric signals.

[0132] The locking device and connector provided in the above embodiments employ a first locking mechanism consisting of a first latching part and a first slot, and a second locking mechanism consisting of a second latching part and a second slot, which are longitudinally overlapped to form a double locking mechanism. During unlocking, the sliding sleeve is slid first by operating the handle, causing the second locking mechanism to unlock, which in turn causes the elastic claw to deform, ultimately unlocking the first locking mechanism. This structure effectively prevents accidental disengagement due to failure of a single locking point or external impact, avoiding accidental unlocking of the locking device due to non-human factors. Furthermore, the user only needs to slide the handle back and forth to achieve the locking or unlocking process, improving the locking reliability, ease of operation, and environmental adaptability of the locking device.

[0133] It should be noted that those skilled in the art, upon considering the specification and practicing the application disclosed herein, will readily conceive of other embodiments of this application. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope of this application is indicated by the following claims.

[0134] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A locking device, characterized in that, include: First component (1), second component (2), sliding sleeve (3) and handle (4); The first component (1) includes an elastic claw (11), which includes a first locking portion (111) and a second locking portion (112). The second component (2) includes a first slot (21), which engages with the first engaging part (111) to form a first locking mechanism; The sliding sleeve (3) is sleeved on the second component (2); the sliding sleeve (3) includes a second slot (31), which engages with the second engaging part (112) to form a second locking mechanism; wherein the second slot (31) overlaps longitudinally with the first slot (21), so that the first locking mechanism and the second locking mechanism overlap longitudinally. The handle (4) is fixedly connected to the sliding sleeve (3) and is used to drive the sliding sleeve (3) to slide relative to the second component (2) in the first direction, so that the first snap-fit ​​part (111) snaps into the first slot (21) to realize the locking of the first locking mechanism, and so that the second snap-fit ​​part (112) snaps into the second slot (31) to realize the locking of the second locking mechanism; Alternatively, the handle (4) is used to drive the sliding sleeve (3) to slide relative to the second component (2) in the second direction, so that the second locking part (112) disengages from the second slot (31) and the second locking mechanism is unlocked. In the process of disengaging the second locking part (112) from the second slot (31), the sliding sleeve (3) applies a force to the second locking part (112) through the second slot (31), so that the elastic claw (11) deforms, so that the first locking part (111) disengages from the first slot (21) and the first locking mechanism is unlocked; wherein, the first direction and the second direction are opposite.

2. The locking device according to claim 1, characterized in that, The first snap-fit ​​portion (111) includes a locking surface, and the first snap-fit ​​groove (21) includes a load-bearing surface; When the first locking mechanism is locked, the locking surface and the bearing surface form a first preset angle to provide axial locking force.

3. The locking device according to claim 1, characterized in that, The second snap-fit ​​portion (112) includes two snap-fit ​​pieces (1121), which are symmetrically distributed about the first snap-fit ​​portion (111) as the axis of symmetry.

4. The locking device according to claim 3, characterized in that, The protruding end of the first snap-fit ​​portion (111) points towards the axis of the first component (1); The two snap-fit ​​pieces (1121) extend circumferentially along the first component (1).

5. The locking device according to claim 3, characterized in that, The second slot (31) includes two inclined guide surfaces (311) for guiding the second latching part (112) to slide into or out of the second slot (31). The two inclined guide surfaces (311) are symmetrically distributed; The tilt angle of the two tilted guide surfaces (311) is a second preset angle.

6. The locking device according to claim 5, characterized in that, The two snap-fit ​​pieces (1121) slide along the two inclined guide surfaces (311) respectively.

7. The locking device according to claim 1, characterized in that, The first component (1) further includes: Installation slot (12); One end of the mounting slot (12) is provided with a threaded hole (121); The elastic claw (11) also includes: Fixed thread (113); The threaded hole (121) is locked with the fixed thread (113) so that the elastic claw (11) is fixed on the first component (1).

8. The locking device according to claim 7, characterized in that, The first component (1) is provided with at least two elastic claws (11) and at least two mounting slots (12) spaced apart along the circumferential direction. The second component (2) has at least two first slots (21) spaced apart along its circumferential direction. At least two second slots (31) are provided at intervals along the circumferential direction on the sliding sleeve (3); The number of the elastic claws (11), the mounting slots (12), the first slot (21), and the second slot (31) are all equal.

9. The locking device according to claim 1, characterized in that, The sliding sleeve (3) is provided with a guide mechanism; The guiding mechanism includes a limiting hole (32) and a fixing member (33); The fixing member (33) passes through the limiting hole (32) and connects the sliding sleeve (3) and the second component (2) to restrict the sliding sleeve (3) to move only along the axial direction of the second component (2).

10. The locking device according to claim 1, characterized in that, The sliding sleeve (3) also includes a damping ring (34); The damping ring (34) is disposed inside the sliding sleeve (3) and at the connection point with the second component (2), and is used to provide damping when the sliding sleeve (3) slides along the second component (2).

11. A connector, characterized in that, Includes a first connection end and a second connection end; The first connecting end and the second connecting end are locked or unlocked by the locking device as described in any one of claims 1 to 10.

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