A quick connect mechanism

Abstract

The utility model provides a kind of quick connecting mechanism, comprising: mounting, mounting is used to connect end tool;Locking assembly, locking assembly is rotatably arranged, locking assembly has locking space for accommodating mounting and end tool connecting part, and with the limiting passage of locking space communication;Locking assembly includes: fastening protrusion, fastening protrusion is arranged in limiting passage;Wherein, at least part of mounting is located in limiting passage;When rotating locking assembly, fastening protrusion and mounting interact, to compress mounting and end tool and fix, by setting locking assembly, realized in rotating locking assembly by mechanical compression mode fast fixing mounting and end tool, avoid the problem that screw fastening is easy to loosen or cam structure is easy to wear in prior art, improve the stability and reliability of connection, ensure that surgical instrument can still maintain absolute locking under stress or vibration environment.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a quick connection mechanism. Background Technology

[0002] In modern medical settings such as minimally invasive surgery, orthopedics, laparoscopy, and robot-assisted surgery, surgical instruments often employ modular designs. Functional switching is achieved through rapid connection between the end effector and the main handle or power unit. This connection structure not only requires sufficient mechanical strength and torque transmission capacity but also must maintain absolute connection stability and reliability during surgery. Any slight loosening, displacement, or even accidental detachment can lead to loss of operational control, tissue damage, or even endanger the patient's life. Currently, the most common end effector connection methods in clinical practice include screw-fastening and cam / lever dead-point locking. However, both of these structures have significant drawbacks in practical applications. Screw-fastening can experience changes in tightening force or screw loosening when the end effector is subjected to significant force or vibration. Dead-point structures like cams are prone to wear and loosening after repeated installation and are also structurally complex.

[0003] Therefore, existing technologies need further development. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a quick connection mechanism to solve the technical problem that the connection between the end tool and the power device is prone to loosening in related technologies.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a quick connection mechanism is provided, comprising: a mounting member for connecting an end tool; a locking assembly rotatably disposed, the locking assembly having a locking space for accommodating the connection portion of the mounting member and the end tool, and a limiting channel communicating with the locking space; the locking assembly includes: a fastening protrusion disposed within the limiting channel; wherein at least a portion of the mounting member is located within the limiting channel; when the locking assembly is rotated, the fastening protrusion interacts with the mounting member to press and fix the mounting member and the end tool together.

[0006] Furthermore, the locking assembly also includes: a locking cover, which has a locking space for accommodating the mounting piece and the end tool connection, and a limiting channel communicating with the locking space; and a handle, which is connected to the locking cover.

[0007] Furthermore, the mounting component includes: a robotic arm; a mounting flange connected to the robotic arm, the mounting flange being located within a locking space; the mounting flange having a limiting protrusion located within a limiting channel; wherein, when the locking cover is rotated, the fastening protrusion and the limiting protrusion interact to press and fix the mounting flange and the end tool together.

[0008] Furthermore, multiple limiting protrusions are provided, and these multiple limiting protrusions are spaced apart along the periphery of the mounting flange. The number of limiting protrusions corresponds to the number of fastening protrusions and the number of limiting channels.

[0009] Furthermore, the shape of the locking space is adapted to the shape of the mounting flange.

[0010] Furthermore, the mounting flange is provided with a V-groove; the end tool includes a fixing part that abuts against the V-groove to radially fix the position of the end tool and the mounting flange.

[0011] Furthermore, the end tool includes: a mounting plate located within the locking space; a locating ball disposed on the side of the mounting plate near the mounting flange, the locating ball abutting against the V-groove; wherein the mounting plate forms a connecting portion.

[0012] Furthermore, the end effector is equipped with at least three positioning balls, the number of which is the same as the number of V-grooves. Each positioning ball is set to correspond one-to-one with each V-groove, and each positioning ball abuts against the corresponding V-groove.

[0013] Furthermore, the locking cover is also provided with a rotation limiting groove, which is connected to the locking space; the end tool is provided with a rotation limiting component, which is rotatably disposed in the rotation limiting groove.

[0014] Furthermore, the locking cap is made of plastic.

[0015] Beneficial effects: 1. By setting up an installation component for connecting the end tool, the locking assembly is rotatably set and has a locking space and a limiting channel, as well as a fastening protrusion that interacts with the installation component. This enables the installation component and the end tool to be quickly fixed by mechanical clamping when the locking assembly is rotated. This avoids the problems of easy loosening of screw fasteners or easy wear of cam structures in the prior art, improves the stability and reliability of the connection, and ensures that the surgical instrument can still maintain absolute locking under stress or vibration.

[0016] 2. By optimizing the installation process, the installation flange first enters the locking space, and then the locking cover is rotated to allow the limiting protrusion to enter the limiting channel. The rotation continues until the limiting protrusion and the fastening protrusion are tightly pressed together. This provides an intuitive and efficient connection method, reduces the difficulty of operation, ensures that the locking effect is consistent every time, and improves the efficiency and safety of operation during surgery.

[0017] 3. By setting the end tool to include a mounting plate and a positioning ball, the positioning ball abuts against the V-groove, forming a point contact positioning, which reduces friction and wear, while providing a flexible connection method, making the end tool easy to install and disassemble, and maintaining high connection accuracy and durability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the quick-connect mechanism used in this embodiment of the utility model; Figure 2 This is a schematic diagram of the structure of the quick-connect mechanism locking assembly used in this embodiment of the utility model; Figure 3 This is a schematic diagram of the structure of the quick-connect mechanism mounting component used in an embodiment of this utility model; Figure 4 This is a schematic diagram of the end tool of the quick-connect mechanism used in this embodiment of the utility model; Figure 5 This is a first-view structural schematic diagram of the locking component of the quick-connect mechanism provided in this embodiment of the utility model.

[0019] The above figures include the following reference numerals: 1. Mounting component; 2. End tool; 3. Locking assembly; 4. Locking space; 5. Limiting channel; 6. Fastening protrusion; 7. Locking cover; 8. Handheld part; 9. Robotic arm; 10. Mounting flange; 11. Limiting protrusion; 12. V-groove; 14. Mounting plate; 15. Positioning ball; 16. Rotary limiting groove; 17. Rotary limiting component. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] According to an embodiment of this utility model, a quick connection mechanism is provided. Please refer to [link / reference]. Figures 1 to 5The device includes: a mounting member 1 for connecting an end tool 2; a locking assembly 3 rotatably disposed, the locking assembly 3 having a locking space 4 for accommodating the connection between the mounting member 1 and the end tool 2, and a limiting channel 5 communicating with the locking space 4; the locking assembly 3 includes: a fastening protrusion 6 disposed within the limiting channel 5; wherein at least a portion of the mounting member 1 is located within the limiting channel 5; when the locking assembly 3 is rotated, the fastening protrusion 6 interacts with the mounting member 1 to press and fix the mounting member 1 and the end tool 2 together.

[0022] By adopting the above technical solution, by setting the mounting part 1 for connecting the end tool 2, the locking assembly 3 is rotatably set and has a locking space 4 and a limiting channel 5, and the fastening protrusion 6 interacts with the mounting part 1, so that the mounting part 1 and the end tool 2 can be quickly fixed by mechanical clamping when the locking assembly 3 is rotated. This avoids the problems of easy loosening of screw fastening or easy wear of cam structure in the prior art, improves the stability and reliability of the connection, and ensures that the surgical instrument can still maintain absolute locking under stress or vibration.

[0023] Please refer to Figure 2 The locking assembly 3 also includes: a locking cover 7, which has a locking space 4 for accommodating the connection between the mounting piece 1 and the end tool 2, and a limiting channel 5 communicating with the locking space 4; and a handheld part 8, which is connected to the locking cover 7.

[0024] Specifically, the hand-held part 8 is a rotating handle to facilitate rotating the locking cover 7.

[0025] By adopting the above technical solution, and by setting a locking cover 7 and a hand-held part 8, the hand-held part 8 is a rotating handle connected to the locking cover 7, providing an easy-to-operate structure, so that the user can easily drive the locking cover 7 by rotating the hand-held part 8, which simplifies the locking process, reduces the time and complexity of tool replacement during surgery, and ensures the smoothness and controllability of the locking action.

[0026] Please refer to Figure 3 The mounting component 1 includes: a robotic arm 9; a mounting flange 10 connected to the robotic arm 9 and located within the locking space 4; the mounting flange 10 has a limiting protrusion 11 located within the limiting channel 5; wherein, when the locking cover 7 is rotated, the fastening protrusion 6 interacts with the limiting protrusion 11 to press and fix the mounting flange 10 and the end tool 2.

[0027] By adopting the above technical solution, the mounting component 1 includes a robotic arm 9 and a mounting flange 10. The mounting flange 10 has a limiting protrusion 11 and is located in the locking space 4 and the limiting channel 5. When the locking cover 7 is rotated, the fastening protrusion 6 interacts with the limiting protrusion 11, thereby achieving a tight clamping and fixing of the mounting flange 10 and the end tool 2. This enhances the mechanical strength and torque transmission resistance of the connection and prevents minor displacement or detachment caused by force during the operation.

[0028] Please refer to Figure 3 Multiple limiting protrusions 11 are provided, and the multiple limiting protrusions 11 are spaced apart along the periphery of the mounting flange 10. The number of limiting protrusions 11 corresponds to the number of fastening protrusions 6 and the number of limiting channels 5.

[0029] By adopting the above technical solution, multiple limiting protrusions 11 are set at intervals along the periphery of the mounting flange 10, and the number of limiting protrusions 11 corresponds to the number of fastening protrusions 6 and the number of limiting channels 5, multi-point locking distribution is achieved, so that the locking force is evenly applied to the mounting flange 10, improving the balance and stability of the connection, reducing local stress concentration, and extending the service life of the structure.

[0030] Furthermore, each limiting channel 5 is arranged at intervals on the side wall of the locking cover 7 along the radial direction of the locking cover 7.

[0031] By adopting the above technical solution, the layout of the limiting channels 5 is optimized by setting each limiting channel 5 at intervals along the radial direction of the locking cover 7 on the side wall of the locking cover 7. This ensures that the limiting protrusion 11 can smoothly enter and be positioned during the locking process, avoids skewing or jamming, and improves the accuracy and consistency of locking.

[0032] Please refer to Figure 3 and Figure 5 The shape of the locking space 4 is adapted to the shape of the mounting flange 10.

[0033] By adopting the above technical solution, and by adapting the shape of the locking space 4 to the shape of the mounting flange 10, the mounting flange 10 is precisely fitted within the locking space 4, reducing gaps and shaking in the connection, enhancing overall rigidity and connection reliability, and preventing instability under dynamic loads.

[0034] Specifically, during the installation process, the mounting flange 10 first enters the locking space 4, and then the locking cover 7 is rotated so that the limiting protrusion 11 of the mounting flange 10 enters the limiting channel 5. The locking cover 7 is rotated continuously until the limiting protrusion 11 and the fastening protrusion 6 interact and abut against each other to complete the connection between the mounting flange 10 and the end tool 2.

[0035] By adopting the above technical solution and optimizing the installation process, the installation flange 10 first enters the locking space 4, and then the locking cover 7 is rotated to allow the limiting protrusion 11 to enter the limiting channel 5. The rotation continues until the limiting protrusion 11 and the fastening protrusion 6 are pressed together. This provides an intuitive and efficient connection method, reduces the difficulty of operation, ensures that each connection can achieve a consistent locking effect, and improves the efficiency and safety of operation during surgery.

[0036] Please refer to Figure 3 The mounting flange 10 is provided with a V-groove 12; the end tool 2 includes a fixing part that abuts against the V-groove 12 to radially fix the position of the end tool 2 and the mounting flange 10.

[0037] By adopting the above technical solution, by setting a V-groove 12 on the mounting flange 10 and abutting against the fixing part of the end tool 2, the radial fixing of the end tool 2 and the mounting flange 10 is achieved, preventing radial relative movement, enhancing the shear resistance and positional stability of the connection, and ensuring the precise alignment of the tool when transmitting torque.

[0038] Please refer to Figure 1 and Figure 4 The end tool 2 includes: a mounting plate 14 located within the locking space 4; a positioning ball 15 disposed on the side of the mounting plate 14 near the mounting flange 10, the positioning ball 15 abutting against the V-groove 12; wherein the mounting plate 14 forms a connecting portion.

[0039] By adopting the above technical solution, and by setting the end tool 2 to include a mounting plate 14 and a positioning ball 15, the positioning ball 15 abuts against the V-groove 12, forming a point contact positioning, which reduces friction and wear, while providing a flexible connection method, making the end tool 2 easy to install and disassemble, and maintaining high connection accuracy and durability.

[0040] Please refer to Figure 4 The end tool 2 is provided with at least three positioning balls 15. The number of positioning balls 15 is the same as the number of V-grooves 12. Each positioning ball 15 is set to correspond one-to-one with each V-groove 12, and each positioning ball 15 abuts against the corresponding V-groove 12.

[0041] By adopting the above technical solution, by setting at least three positioning balls 15 on the end tool 2, and the number of positioning balls 15 is the same as the number of V-grooves 12 and corresponds one-to-one, uniform contact at multiple points is achieved, forming a stable support system, preventing the end tool 2 from tilting or rotating, and improving the balance and anti-interference ability of the connection.

[0042] Specifically, each V-groove 12 extends radially from the midpoint of the mounting flange 10 and communicates with the outside.

[0043] By adopting the above technical solution, the geometric layout of the V-groove 12 is optimized by extending radially from the midpoint of the mounting flange 10 and communicating with the outside. This allows the positioning ball 15 to quickly align and enter the V-groove 12, simplifying the installation process. At the same time, it ensures the effectiveness and consistency of radial fixing. Moreover, after one end of the V-groove 12 is communicated with the outside, the adaptability can be enhanced to prevent the positioning ball 15 from failing to contact the two side walls of the V-groove 12 due to errors.

[0044] Specifically, each positioning ball 15 abuts against the two side walls of the corresponding V-groove 12 to form multi-point contact, increasing stability and thus preventing the end tool 2 from moving relative to the mounting flange 10; wherein, each positioning ball 15 forms a fixing part.

[0045] By adopting the above technical solution, by making each positioning ball 15 abut against the two side walls of the corresponding V-groove 12 to form multi-point contact, the contact area and friction are increased, the external load is dispersed, the stability and vibration resistance of the connection are improved, and loosening during repeated use is prevented.

[0046] Please refer to Figure 5 The locking cover 7 is also provided with a rotation limiting groove 16, which is connected to the locking space 4; the end tool 2 is provided with a rotation limiting member 17, which is rotatably disposed in the rotation limiting groove 16.

[0047] By adopting the above technical solution, by setting a rotation limiting groove 16 on the locking cover 7 and setting a rotation limiting member 17 on the end tool 2 rotatably in the rotation limiting groove 16, the rotation range of the end tool 2 during the locking process is limited, ensuring correct alignment and locking position, preventing over-rotation or misoperation, and improving the safety and reliability of the connection.

[0048] Specifically, the two ends of the rotating limiting groove 16 are the loose position and the tight position, respectively. When the rotating limiting member 17 is in the loose position of the rotating limiting groove 16, the limiting protrusion 11 does not contact the fastening protrusion 6. When the rotating limiting member 17 is in the tight position of the rotating limiting groove 16, the limiting protrusion 11 interacts with the fastening protrusion 6 to pre-tighten the mounting flange 10 and the locking cover 7. Furthermore, the locking cover 7 is made of plastic, and at least a portion of the fastening protrusion 6 is provided on the locking cover 7 to form an elastic support. When the limiting protrusion 11 on the mounting flange 10 begins to contact the fastening protrusion 6 of the locking cover 7, the fastening protrusion 6 moves toward the mounting flange 10 due to the pressure of the limiting protrusion 11, and the elastic support of the locking cover 7 begins to undergo elastic deformation to generate elastic force, which is used to pre-tighten the mounting flange 10 and the locking cover 7.

[0049] By adopting the above technical solution, the locking cover 7 is made of plastic material, and at least part of the fastening protrusion 6 forms an elastic support. When the limiting protrusion 11 contacts the fastening protrusion 6, the elastic support deforms and generates elastic force, thereby achieving continuous pre-tightening of the mounting flange 10 and the locking cover 7, compensating for manufacturing tolerances and wear, ensuring the long-term stability of the connection, reducing maintenance needs and improving the adaptability of the structure.

[0050] Working principle: First, the operator holds the end tool 2 and loosens the locking cover 7, placing it together with the rotation limiter 17 of the end tool 2. Next, the operator inserts the limiting protrusion 11 of the mounting flange 10 axially into the locking space 4 of the locking cover 7 of the locking assembly 3. Then, the operator aligns the mounting plate 14 and the multiple positioning balls 15 fixed on the mounting plate 14 with the mounting flange 10. The operator brings the mounting plate 14 and the mounting flange 10 closer together, ensuring that each positioning ball 15 is embedded in the corresponding V-groove 12 on the mounting flange 10. The multiple points of contact formed between the two side walls of the V-groove 12 and the positioning balls 15 initially achieve radial positioning and fixation of the end tool 2 and the mounting flange 10. After completion, the operator holds the handheld part 8 on the locking cover 7 and begins to rotate the locking cover 7. The rotation of the locking cover 7 causes the multiple limiting channels 5 to rotate accordingly, causing the multiple limiting channels spaced apart on the periphery of the mounting flange 10 to rotate. The protrusions 11 slide into the corresponding limiting channels 5 respectively; continue to rotate the locking cover 7 smoothly, and the fastening protrusions 6 in the limiting channels 5 begin to contact and interact with the sides of the slid-in limiting protrusions 11. Since the locking cover 7 is made of plastic and at least part of the fastening protrusions 6 constitutes an elastic support, the elastic support undergoes elastic deformation under this pressure and applies a continuous pre-tightening force to the limiting protrusions 11. This process continues until the limiting protrusions 11 and the fastening protrusions 6 reach a fully abutted state. At this time, the rotating limiting member 17 also reaches the fastening position in the rotating limiting groove 16, effectively preventing over-rotation; thus, through the rotation of the locking cover 7, the inclined surface extrusion and elastic pre-tightening action of the fastening protrusions 6 and the limiting protrusions 11 are used to finally firmly press and fix the mounting flange 10 and the mounting plate 14 of the end tool 2 together in the axial direction, completing the entire fast, reliable and loose connection installation.

[0051] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0052] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0053] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0054] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0055] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A quick-connect mechanism, characterized in that, include: Mounting component (1), which is used to connect the end tool (2); Locking assembly (3), the locking assembly (3) is rotatably disposed, the locking assembly (3) has a locking space (4) for accommodating the connection between the mounting member (1) and the end tool (2), and a limiting channel (5) communicating with the locking space (4). The locking assembly (3) includes a fastening protrusion (6), which is disposed within the limiting channel (5); Wherein, at least a portion of the mounting component (1) is located in the limiting channel (5); When the locking assembly (3) is rotated, the fastening protrusion (6) interacts with the mounting member (1) to press and fix the mounting member (1) and the end tool (2).

2. The quick-connect mechanism according to claim 1, characterized in that, The locking assembly (3) further includes: Locking cover (7), the locking cover (7) is provided with a locking space (4) for accommodating the connection between the mounting part (1) and the end tool (2), and a limiting channel (5) communicating with the locking space (4); Hand-held part (8), which is connected to the locking cover (7).

3. The quick-connect mechanism according to claim 2, characterized in that, The mounting component (1) includes: robotic arm (9); Mounting flange (10) is connected to the robotic arm (9) and is located within the locking space (4); the mounting flange (10) has a limiting protrusion (11) located within the limiting channel (5); When the locking cover (7) is rotated, the fastening protrusion (6) interacts with the limiting protrusion (11) to press and fix the mounting flange (10) and the end tool (2).

4. The quick-connect mechanism according to claim 3, characterized in that, The limiting protrusions (11) are provided in multiple ways, and the multiple limiting protrusions (11) are spaced apart along the periphery of the mounting flange (10). The number of the limiting protrusions (11) corresponds to the number of the fastening protrusions (6) and the number of the limiting channels (5).

5. The quick-connect mechanism according to claim 3, characterized in that, The shape of the locking space (4) is adapted to the shape of the mounting flange (10).

6. The quick-connect mechanism according to claim 3, characterized in that, The mounting flange (10) is provided with a V-groove (12); the end tool (2) includes a fixing part that abuts against the V-groove (12) to radially fix the position of the end tool (2) and the mounting flange (10).

7. The quick-connect mechanism according to claim 6, characterized in that, The end-effector (2) includes: Mounting plate (14), which is located within the locking space (4); Positioning ball (15) is disposed on the side of the mounting plate (14) near the mounting flange (10), and the positioning ball (15) abuts against the V-groove (12).

8. The quick-connect mechanism according to claim 7, characterized in that, The end tool (2) is provided with at least three positioning balls (15), the number of positioning balls (15) is the same as the number of V-grooves (12), each positioning ball (15) is provided in a one-to-one correspondence with each V-groove (12), and each positioning ball (15) abuts against the corresponding V-groove (12).

9. The quick-connect mechanism according to claim 2, characterized in that, The locking cover (7) is also provided with a rotation limiting groove (16), which is connected to the locking space (4); The end tool (2) is provided with a rotation limiting member (17), which is rotatably disposed in the rotation limiting groove (16).

10. The quick-connect mechanism according to claim 2, characterized in that, The locking cover (7) is made of plastic.

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