Push self-locking quick release connecting device

Abstract

This invention discloses a press-to-lock quick-release connection device, belonging to the technical field of mechanical connection and locking devices. The device includes a base assembly and a quick-release assembly. The base assembly contains a quick-release channel and a self-locking mechanism, which includes a turntable and a self-locking component arranged coaxially and rotating independently. The quick-release assembly includes a quick-release shaft and a self-locking pin. The quick-release shaft drives the self-locking pin to move axially back and forth, alternately pushing the turntable ratchet and the self-locking component to rotate step by step, causing the self-locking pin to alternately align with the self-locking position or release through hole, achieving axial locking or release. The base assembly also includes a limiting sleeve, which, in the axially locked state, is tightly fitted onto the outside of the quick-release assembly to form a full-circumferential radial rigid constraint. In summary, this invention completely eliminates mechanical fit clearances through the layered constraint of the outer sleeve, achieving multi-load decoupling, significantly improving the anti-sway and anti-noise capabilities of precision assembly structures under dynamic vibration conditions, and eliminating blind insertion jamming.

Description

Technical Field

[0001] This invention belongs to the technical field of mechanical connection and locking devices, specifically relating to a press-to-lock quick-release connection device for lightweight precision assembly or door / cover structures. Background Technology

[0002] In applications such as display module assembly, LED light panel docking, and locking of various control cabinets and cabinet doors, it is often necessary to quickly lock and fix two relatively independent components or objects and release them with a single click. Traditional quick-release connection structures generally use alternating press-type elastic reversing latches or rebound ball mechanisms. These structures mainly achieve alternating changes in the locking position through the cooperation of internal moving parts. Although traditional press-lock operation is relatively simple, it exposes the following obvious technical defects when facing precision or dynamic usage environments that require high flatness, vibration resistance, or frequent blind mating: Firstly, in order to ensure smooth alternation and rebound between components, traditional push-to-resume mechanisms typically have relatively significant mechanical fit tolerances and assembly gaps in their internal kinematic pairs (such as guide grooves, rotating parts, and pins). When this device is used for splicing displays or LED light panels, the tiny radial gaps in the locked state can cause micro-wobbling or unevenness at the splice, directly compromising the flatness of the overall display surface and the visual gap requirements. Furthermore, when used in cabinet doors inside vehicles or chassis doors of equipment subject to vibration, continuous high-frequency micro-vibrations are amplified through these fit gaps, causing continuous shaking and friction noise between components. Over time, this can easily accelerate the plastic wear of the internal core micro ratchet structure, ultimately leading to the complete failure of the self-locking mechanism.

[0003] Secondly, conventional quick-release latches lack effective external multi-directional rigid constraints and forced blind insertion guidance mechanisms. During large-area or multi-point rapid blind insertion assembly, the insertion end is prone to axial eccentricity or angular misalignment, causing the core locking pin to collide and jam with the internal reversing end face. This not only makes it difficult to achieve precise alignment, but also often leads to occasional failures such as inability to lock smoothly or jamming and being unable to open due to obstruction of the return spring release.

[0004] Therefore, existing technical solutions cannot meet the stringent requirements of one-click quick-release, blind insertion error prevention guidance, and full-circumferential gapless anti-sway constraint in specific application scenarios. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention aims to provide a technical solution that can solve the above problems.

[0006] This invention provides a press-to-lock quick-release connection device, including a base assembly and a quick-release assembly. The base assembly is provided with a quick-release channel, and the quick-release channel is provided with a self-locking mechanism. The self-locking mechanism includes a turntable component and a self-locking component arranged coaxially along the axial direction and each of them can rotate independently around the central axis. The quick-release assembly includes a quick-release shaft and a self-locking pin fixed to the end of the quick-release shaft; The turntable component has a ratchet tooth on its end face facing the self-locking component, which is used to receive the axial thrust of the self-locking pin and convert it into a circumferential rotational torque. The outer ring of the self-locking component facing the turntable component has a transmission sidewall that abuts against the ratchet of the turntable in the circumferential direction and transmits the rotational torque. The inner ring of the self-locking component has a release through hole that extends radially and passes through axially, and self-locking positions formed on both sides of the release through hole in the circumferential direction. The quick-release shaft can drive the self-locking pin to extend into the quick-release channel, so as to alternately push the turntable ratchet and the self-locking member through axial reciprocating movement, thereby driving the turntable and the self-locking member to rotate step by step, so that the self-locking pin alternately aligns with the self-locking position to form an axial locking state, or aligns with the release through hole to form a release state.

[0007] Furthermore, the base assembly also includes a limiting sleeve, one end of which is fixed to the opening of the quick-release channel to provide axial limiting protection for the turntable and the self-locking component; the other end of the limiting sleeve extends axially outward to be tightly fitted onto the outside of the quick-release assembly in the axially locked state to form a full circumferential radial rigid constraint on the quick-release assembly.

[0008] Furthermore, the self-locking component has an inverted V-shaped guide protrusion on one end face facing the quick-release assembly. The guide protrusion includes two symmetrically arranged guide slopes that extend obliquely toward the release through hole, which are used to automatically guide the self-locking pin that is initially inserted axially into the release through hole.

[0009] Furthermore, the turntable component has a spherical anti-friction protrusion at one end facing the bottom of the quick-release channel, and the anti-friction protrusion maintains point contact support with the bottom surface of the quick-release channel.

[0010] Furthermore: the turntable ratchet teeth are arranged in several groups at uniform intervals along the circumference. Each turntable ratchet tooth includes a first sidewall that remains vertical along the axial direction and a second sidewall that is inclined. The first sidewall forms an interface that unidirectionally abuts against the transmission sidewall, and the second sidewall is used to contact the self-locking pin to receive force.

[0011] Furthermore, the turntable component has a clearance countersunk hole in the central axis area of ​​the end with the turntable ratchet, which allows the end of the quick-release shaft to extend into the hole to achieve axial space clearance when the quick-release shaft is pressed inward.

[0012] Furthermore: the transmission sidewall is formed by a third sidewall extending axially from the outer ring of one end of the self-locking member; the self-locking position is formed between the adjacent self-locking ratchet teeth on both sides of the circumferential side of the release through hole, and the self-locking position is spatially offset from the release through hole.

[0013] Furthermore, the self-locking ratchet is provided with a fourth sidewall in the shape of an inclined plane. The circumferential inclination direction of the fourth sidewall is opposite to the inclination direction of the second sidewall. This is used to guide the self-locking pin to slide along the fourth sidewall and accurately fall into the self-locking position when the self-locking pin returns to its axial position.

[0014] Furthermore: the base assembly includes a mounting base and a base sleeve disposed at one end of the mounting base, and the other end of the mounting base is provided with mounting bolts for connecting external components; the internal cavity of the base sleeve forms the quick-release channel, and the turntable component and the self-locking component are both housed within the base sleeve.

[0015] Furthermore, the quick-release assembly also includes a quick-release cylinder, a pressing member axially movably assembled within the quick-release cylinder, and a return spring disposed between the quick-release cylinder and the pressing member; one end of the quick-release shaft is fixed to the pressing member, and the other end passes outward through the cover of the quick-release cylinder and is fixedly connected to the self-locking pin; in the initial state of separation, the self-locking pin abuts against the outer surface of the cover under the tension force of the return spring, thereby constituting an axial limit anti-disengagement limit for the pressing member and the quick-release shaft.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. Full-circumferential backlash-free constraint design significantly improves the anti-sway and anti-noise capabilities of precision assembly. This invention ingeniously utilizes a limiting sleeve to construct a high-rigidity, double-layered, multi-directional constraint structure. One end of the limiting sleeve reliably encapsulates the internal core self-locking mechanism to prevent detachment, while the other end extends axially outward to precisely and tightly fit onto the quick-release cylinder of the quick-release assembly in the axially locked state, thereby applying a strong, full-circumferential radial rigid constraint to the quick-release assembly. This double-layered sleeve constraint mechanism completely intercepts and eliminates radial fit gaps caused by mechanical fit tolerances at the physical level. External high-frequency micro-vibrations, equipment bumps, or lateral micro-oscillation forces are all borne by the high-rigidity limiting sleeve and the quick-release shell, ensuring that the internal delicate turntable components, self-locking components, and self-locking pins do not suffer radial shear or fretting wear in the locked state. This not only completely eliminates self-locking failure caused by long-term shaking but also ensures absolute flatness when splicing components such as LED light panels, achieving highly efficient vibration and noise reduction effects.

[0017] 2. Precise unidirectional evolution of tooth surface topology logic completely eliminates blind insertion deadlock and mechanical jamming. The input end face of the self-locking component facing the quick-release assembly features a specially designed inverted V-shaped guide protrusion. Two symmetrically arranged guide ramps generate a forced axial displacement guiding effect, automatically correcting any circumferential phase misalignment or axial eccentricity of the self-locking pin during blind insertion, smoothly guiding it into the release through hole and preventing end face collision deformation. Simultaneously, by setting a reverse ramp on the self-locking ratchet with an inclination direction completely opposite to the long ramp of the turntable ratchet, the self-locking pin, driven by the axial rebound force of the return spring, can precisely, forcibly, and automatically slide along the ramp and securely fall into the self-locking position between the two sets of self-locking ratchets. This specific alternating spatial topology of the tooth surfaces forms a perfect mechanical motion closed loop, ensuring precise operation of the device in any blind insertion environment and completely eliminating the jamming and deadlock risks common in conventional reversing structures.

[0018] 3. The point-contact friction-reducing support provides excellent operating comfort and effectively reduces wear on the contact surface under frequent movements. The turntable component has spherical anti-friction protrusions on its end face facing the bottom of the quick-release channel, optimizing the surface contact between the turntable component and the bottom of the base sleeve into a high-precision near-point contact. When the quick-release shaft transmits axial thrust to force the turntable component to rotate stepwise, these anti-friction protrusions provide reliable axial center support while reducing rotational friction resistance and starting torque to an extremely low level. This makes it extremely easy and smooth for users to press to connect or disconnect, significantly improving operational comfort and effectively delaying mechanical wear of the core rotating mating surfaces under frequent operation.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional schematic diagram of the released state of the present invention; Figure 3 This is a cross-sectional schematic diagram of the locked state of the present invention; Figure 4 This is a structural schematic diagram of the base assembly and quick-release assembly of the present invention in a separated state; Figure 5 This is a schematic diagram of the structure of the turntable component and the self-locking component of the present invention in a mutually engaged state; Figure 6 This is a schematic diagram of the structure of the turntable component and the self-locking component of the present invention in a separated state; Figure 7 This is a schematic diagram of the self-locking ratchet and self-locking position of the present invention.

[0022] The reference numerals and names in the figure are as follows: 10 Base assembly; 11 Mounting base; 12 Mounting bolt; 13 Base sleeve; 14 Limiting sleeve; 20 Self-locking mechanism; 21 Turntable component; 22 Anti-friction protrusion; 23 Turntable ratchet; 24 First side wall; 25 Second side wall; 30 Self-locking component; 31 Third side wall; 32 Release through hole; 33 Self-locking ratchet; 34 Self-locking position; 35 Fourth side wall; 36 Guide protrusion; 40 Quick release assembly; 41 Quick release shaft; 42 Self-locking pin; 43 Quick release cylinder; 44 Cover; 45 Pressing component; 46 Return spring. Detailed Implementation

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1 to 7 The present invention provides the following embodiments: I. Example 1 like Figures 1 to 5As shown, this embodiment provides a press-to-lock quick-release connection device, which is mainly used to achieve rapid rigid locking and one-button elastic release between two relatively independent components or objects. The core of the device consists of a base assembly 10 and a quick-release assembly 40.

[0025] Specifically, the base assembly 10 has an internal structure with a quick-release channel extending along its axial direction, within which a core self-locking mechanism 20 is centrally assembled. The self-locking mechanism 20 employs a coaxial linkage design in its spatial arrangement, specifically comprising a turntable 21 and a self-locking component 30 arranged coaxially along the axial direction and each capable of independently rotating around a central axis. The quick-release assembly 40, serving as a detachable insertion end, includes a quick-release shaft 41 capable of reciprocating linear displacement along the axial direction, and a self-locking pin 42 rigidly fixed at the end of the quick-release shaft 41.

[0026] When the quick-release assembly 40 approaches the base assembly 10 and is inserted into the quick-release channel, the quick-release shaft 41, driven by an external pressing force, drives the self-locking pin 42 axially deeper into the quick-release channel. Through the axial movement of the self-locking pin 42, the turntable 21 and the self-locking component 30 can be alternately and segmentally driven to rotate at a preset angle, thereby changing the circumferential relative phase between the self-locking component 30 and the self-locking pin 42. Ultimately, the self-locking component 30 is used to axially lock or release the self-locking pin 42.

[0027] Furthermore, the base assembly 10 specifically includes a mounting base 11 and a base sleeve 13 integrally formed or fixedly connected to one end of the mounting base 11. The other end of the mounting base 11 is provided with an anchoring structure such as mounting bolts 12 to securely connect external components. The internal cavity of the base sleeve 13 constitutes the aforementioned quick-release channel, and both the turntable component 21 and the self-locking component 30 are rotatably housed within the internal cavity of the base sleeve 13, restricting a large range of axial displacement.

[0028] To significantly reduce the frictional resistance of the turntable 21 during pressure rotation and improve the overall smoothness of operation, a spherical anti-friction protrusion 22 is provided on the end face of the turntable 21 facing the inner bottom of the base sleeve 13. The highest point of this anti-friction protrusion 22 always maintains point contact support with the inner bottom surface of the base sleeve 13, thereby providing axial support and greatly reducing wear when the turntable 21 is subjected to high axial thrust and rotates rapidly.

[0029] II. Example 2 like Figures 5 to 7 As shown, this embodiment, based on the above embodiment, further refines the mechanical transmission interface between the turntable 21 and the self-locking component 30, as well as the specific tooth surface locking logic, to ensure the closed-loop drive of mechanical motion.

[0030] On the end face of the turntable 21 facing the self-locking member 30, several sets of turntable ratchet teeth 23 are evenly spaced and staggered along the circumference. Specifically, each turntable ratchet tooth 23 is composed of a first sidewall 24 that remains vertical along the axial direction and a second sidewall 25 that extends obliquely along the circumference and forms a long ramp. Correspondingly, on the outer ring of the end of the self-locking member 30 facing the turntable 21, a third sidewall 31 that extends axially and faces in the opposite direction is provided. In the assembled state, the first sidewall 24 of the turntable 21 and the third sidewall 31 of the self-locking member 30 are in close contact with each other in the circumferential space, thereby forming a rigid transmission path for unidirectional rotational torque. In addition, a clearance countersunk hole is specially provided in the central axis area of ​​the end of the turntable component 21 where the turntable ratchet 23 is provided, so that when the quick release shaft 41 is pressed inward for overtravel, the end of the quick release shaft 41 can be perfectly cleared, ensuring that the self-locking pin 42 can form a complete rotation drive on the long slope-shaped second sidewall 25 without interference.

[0031] In the structural design of locking and releasing, the inner ring region of the self-locking component 30 facing the turntable component 21 has a release through hole 32 that extends radially along its end and is axially fully through. The cross-sectional shape of the release through hole 32 matches the axial projection of the self-locking pin 42, allowing the self-locking pin 42 to pass through axially without obstruction in a specific phase. On both sides of the circumferential direction of the release through hole 32, two sets of self-locking ratchet teeth 33 are symmetrically arranged. The recessed area between two adjacent sets of self-locking ratchet teeth 33 is defined as the self-locking position 34. The self-locking position 34 is spatially offset from the release through hole 32 and is specifically used for axial limiting and locking of the self-locking pin 42.

[0032] The self-locking ratchet 33 is also provided with a fourth sidewall 35 in a beveled shape. To ensure the alternating evolution of the movement trajectory, the inclination direction of the fourth sidewall 35 is opposite to the inclination direction of the second sidewall 25 of the turntable ratchet 23 in the circumferential direction. In addition, on the end face of the self-locking member 30 facing the quick-release assembly 40, corresponding to the initial axial cutting path of the self-locking pin 42, a guide protrusion 36 in an inverted V shape is specially provided. The guide protrusion 36 has two symmetrically arranged guide bevels that both extend inclined towards the release through hole 32. Through the physical sliding guidance effect of these two guide bevels, the sliding phase of the self-locking pin 42 when it is first inserted can be automatically corrected, so that it is smoothly and accurately introduced into the release through hole 32, effectively avoiding hard collision of the end faces during docking.

[0033] III. Example 3 like Figures 2 to 5As shown, this embodiment describes in detail the complete dynamic motion cycle of the press-to-lock quick-release connection device from one-key axial locking to alternating elastic release, as well as the multi-directional load diversion mechanism unique to this invention.

[0034] First, in the initial state where the devices are separated, the return spring 46 within the quick-release assembly 40 is in a partially relaxed or pre-tightened state. When locking is required, the user operates the pressing member 45 of the quick-release assembly 40 inward. The pressing member 45 overcomes the resistance of the return spring 46, driving the quick-release shaft 41 and the self-locking pin 42 at its end axially forward. The self-locking pin 42 first contacts the inverted V-shaped guide protrusion 36 on the end face of the self-locking member 30, automatically adjusts its phase along the guide slope, and passes through the release through hole 32.

[0035] After the self-locking pin 42 passes through the release through hole 32, it continues to penetrate deeper, and its side or end precisely impacts the second side wall 25 of the turntable 21. As the axial pressure continues to increase, the self-locking pin 42 forces the turntable 21 to overcome friction and rotate around the central axis. Since the first side wall 24 of the turntable 21 and the third side wall 31 of the self-locking member 30 abut against each other in the circumferential direction, the rotation of the turntable 21 immediately causes the self-locking member 30 to rotate synchronously and in the same direction by a preset angle.

[0036] At this point, when the user removes the external pressing force, the return spring 46 inside the quick-release assembly 40 instantly releases its elastic potential energy, driving the pressing part 45 and the quick-release shaft 41 to move outward in the opposite axial direction. During this rebound process, the outwardly withdrawing self-locking pin 42 will precisely impact and slide along the fourth side wall 35 of the self-locking ratchet 33 on the self-locking part 30. When it slides to the end of the inclined surface of the fourth side wall 35, the self-locking pin 42, under the continuous axial tension of the return spring 46, automatically and firmly falls into the self-locking position 34 between the two sets of self-locking ratchet 33. At this time, the self-locking pin 42 is rigidly blocked by the self-locking ratchet 33 in the axial withdrawal direction and cannot continue to move outward, thereby locking the entire quick-release assembly 40 extremely firmly onto the base assembly 10, and the device enters a stable axial locking state.

[0037] In the locking condition of this invention, when the device is subjected to severe multi-directional shear force, mechanical shaking, or radial bending moment, all the complex external loads are directly transmitted and intercepted through the rigid outer wall and the outer casing stacked structure. At this time, the self-locking pin 42, self-locking ratchet 33, and turntable 21 in the self-locking position 34 are completely isolated and protected by the outer sleeve structure, and only bear the axial static tensile force given by the return spring 46 purely and singly. This load diversion and decoupling design ensures that the internal fine step-reversing ratchet does not undergo shear deformation or tooth breakage and deadlock under long-term high-load impact.

[0038] When it is necessary to release the above-mentioned locking state, the user only needs to perform a second pressing operation. Pressing the pressing member 45 inward again causes the quick-release shaft 41 and the self-locking pin 42 to move axially inward again, thereby disengaging the self-locking pin 42 from the self-locking position 34 and continuing to move inward. The self-locking pin 42 strikes the second side wall 25 of the turntable member 21 again, forcing the turntable member 21 and the self-locking member 30 coupled through the third side wall 31 to rotate synchronously again by a preset angle.

[0039] When the turntable 21 and the self-locking component 30 rotate to this new phase, the release through-hole 32 on the self-locking component 30 is precisely aligned again with the self-locking pin 42 in the circumferential phase. At this time, once the user removes the external force of the second press, the rebound force generated by the return spring 46 pushes the quick-release shaft 41 to move outward, and the self-locking pin 42 can be completely withdrawn outward along the axial direction directly through the release through-hole 32 without any obstruction. The quick-release assembly 40 is smoothly disengaged from the base assembly 10, realizing one-click quick disassembly and release.

[0040] IV. Example 4 like Figures 1 to 4 As shown, this embodiment further reinforces the overall shell structure of the quick-release component 40 and the anti-detachment, high-rigidity anti-shaking constraint system of the base component 10 based on any of the above embodiments.

[0041] The quick-release assembly 40 also includes an external quick-release cylinder 43. One end of the quick-release cylinder 43 has an opening for assembling and accommodating the aforementioned pressing member 45, and the other end is integrally formed with a cover 44. The aforementioned return spring 46 is axially mounted between the cover 44 and the pressing member 45, continuously providing elastic force to the pressing member 45 to move away from the cover 44. A shaft hole is provided at the central axis position of the cover 44. One end of the quick-release shaft 41 is fixed to the end of the pressing member 45 facing the inside of the quick-release cylinder 43, and the other end extends outward through the shaft hole and is fixedly connected to the self-locking pin 42. In the initial state where the base assembly 10 and the quick-release assembly 40 are separated from each other, the self-locking pin 42, under the tension of the return spring 46, tightly abuts against the outer surface of the cover 44, thereby forming an axial limit anti-disengagement limit between the pressing member 45 and the quick-release shaft 41, preventing the internal components from disengaging from the quick-release cylinder 43 under the elastic force.

[0042] Correspondingly, a high-strength limiting sleeve 14 is additionally provided in the base assembly 10. One end of the limiting sleeve 14 is threaded or interference-fitted to the open end of the base sleeve 13, thereby firmly sealing the self-locking mechanism 20 inside the base sleeve 13 within the sleeve cavity, limiting and covering it axially to prevent it from axially dislodging under frequent pressure.

[0043] Meanwhile, the other end of the limiting sleeve 14 extends axially outward by a specific protective distance, and its internal diameter closely matches the outer contour of the end of the quick-release cylinder 43 with the cap 44. When the quick-release assembly 40 is inserted into the base assembly 10 and enters the locked state, the outwardly extending end of the limiting sleeve 14 will be relatively tightly and rigidly fitted onto the outside of the quick-release cylinder 43, thereby applying a strong radial constraint to the quick-release cylinder 43 in the entire circumferential direction. This double-layer sleeve overlapping circumferential limiting structure completely eliminates lateral mechanical shaking, tilting, or shear gaps caused by external loads in the locked state at the physical boundary, greatly improving the static and dynamic connection stiffness of the entire connection device when subjected to complex mechanical stresses.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A press-to-lock quick-release connection device, comprising a base assembly (10) and a quick-release assembly (40), characterized in that: The base assembly (10) is provided with a quick-release channel, and the quick-release channel is provided with a self-locking mechanism (20). The self-locking mechanism (20) includes a turntable (21) and a self-locking component (30) arranged coaxially along the axial direction and each of them can rotate independently around the central axis. The quick-release assembly (40) includes a quick-release shaft (41) and a self-locking pin (42) fixed to the end of the quick-release shaft (41). The turntable (21) has a turntable ratchet (23) on its end face facing the self-locking member (30) for receiving the axial thrust of the self-locking pin (42) and converting it into a circumferential rotational torque. The self-locking member (30) has a transmission sidewall on the outer ring of one end facing the turntable member (21) that abuts against the turntable ratchet (23) in the circumferential direction and transmits the rotational torque. The inner ring of the self-locking member (30) has a release through hole (32) that extends radially and passes through axially, and self-locking positions (34) formed on both sides of the release through hole (32) in the circumferential direction. The quick-release shaft (41) can drive the self-locking pin (42) to extend into the quick-release channel, so as to alternately push the turntable ratchet (23) and the self-locking member (30) through axial reciprocating movement, thereby driving the turntable member (21) and the self-locking member (30) to rotate step by step, so that the self-locking pin (42) alternately aligns with the self-locking position (34) to form an axial locking state, or aligns with the release through hole (32) to form a release state.

2. The press-to-lock quick-release connection device according to claim 1, characterized in that: The base assembly (10) also includes a limiting sleeve (14), one end of which is fixed to the opening of the quick-release channel to provide axial limiting protection for the turntable (21) and the self-locking component (30); the other end of the limiting sleeve (14) extends axially outward to be tightly fitted onto the outside of the quick-release assembly (40) in the axially locked state to form a full circumferential radial rigid constraint on the quick-release assembly (40).

3. The press-to-lock quick-release connection device according to claim 1, characterized in that: The self-locking component (30) has an inverted V-shaped guide protrusion (36) on one end face facing the quick-release assembly (40). The guide protrusion (36) includes two symmetrically arranged guide slopes that extend obliquely toward the release through hole (32) to automatically guide the self-locking pin (42) that is initially inserted axially into the release through hole (32).

4. The press-to-lock quick-release connection device according to claim 1, characterized in that: The turntable component (21) has a spherical anti-friction protrusion (22) at one end facing the bottom of the quick-release channel. The anti-friction protrusion (22) maintains point contact support with the bottom surface of the quick-release channel.

5. The press-to-lock quick-release connection device according to claim 1, characterized in that: The turntable ratchet (23) is arranged in several groups at even intervals along the circumference. Each turntable ratchet (23) includes a first sidewall (24) that is vertical along the axial direction and a second sidewall (25) that is inclined. The first sidewall (24) forms an interface that abuts against the transmission sidewall in one direction, and the second sidewall (25) is used to contact the self-locking pin (42) to receive force.

6. The press-to-lock quick-release connection device according to claim 5, characterized in that: The turntable component (21) has a clearance countersunk hole in the central axis area of ​​the end with the turntable ratchet (23), so that when the quick release shaft (41) is pressed inward, the end of the quick release shaft (41) can extend into it to achieve axial space clearance.

7. The press-to-lock quick-release connection device according to claim 5, characterized in that: The transmission sidewall is formed by a third sidewall (31) extending axially from the outer ring of one end of the self-locking member (30); the self-locking position (34) is formed between the self-locking ratchet teeth (33) on both sides of the circumferential direction of the release through hole (32), and the self-locking position (34) is spatially offset from the release through hole (32).

8. The press-to-lock quick-release connection device according to claim 7, characterized in that: The self-locking ratchet (33) is provided with a fourth sidewall (35) in the shape of an inclined plane. The circumferential inclination direction of the fourth sidewall (35) is opposite to the inclination direction of the second sidewall (25). It is used to guide the self-locking pin (42) to slide along the fourth sidewall (35) and accurately fall into the self-locking position (34) when the self-locking pin (42) springs back to its original position in the axial direction.

9. The press-to-lock quick-release connection device according to claim 2, characterized in that: The base assembly (10) includes a mounting base (11) and a base sleeve (13) located at one end of the mounting base (11). The other end of the mounting base (11) is provided with mounting bolts (12) for connecting external components. The internal cavity of the base sleeve (13) forms the quick-release channel. The turntable (21) and the self-locking component (30) are both housed within the base sleeve (13).

10. The press-to-lock quick-release connection device according to claim 2, characterized in that: The quick-release assembly (40) further includes a quick-release cylinder (43), a pressing member (45) axially movably assembled in the quick-release cylinder (43), and a return spring (46) disposed between the quick-release cylinder (43) and the pressing member (45); one end of the quick-release shaft (41) is fixed to the pressing member (45), and the other end passes outward through the cover (44) of the quick-release cylinder (43) and is fixedly connected to the self-locking pin (42); in the initial state of separation, the self-locking pin (42) abuts against the outer surface of the cover (44) under the tension of the return spring (46) to form an axial limit anti-disengagement limit between the pressing member (45) and the quick-release shaft (41).

Images