Locking structure and handheld tool
By designing a locking structure that includes a rotating assembly, locking component and handheld assembly, the problem of easy wear at the rotating connection of surgical tools is solved, achieving higher accuracy and service life.
Patent Information
- Application Number
- CN202421918379.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-08
AI Technical Summary
The rotating connections of existing surgical tools are prone to wear, resulting in reduced surgical accuracy and shortened tool life.
A locking structure is designed, including a rotating assembly, a locking member and a handheld assembly, to avoid friction through the connection gap between the rotating assembly and the handheld assembly, and to achieve locking and release of the component to be locked using a locking slider and a release member.
It effectively avoids friction and wear at the rotating joints, and improves the accuracy and service life of surgical tools.
Smart Images
Figure CN223026095U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of surgical tools, and particularly relates to a locking structure and a hand-held tool. Background Art
[0002] At present, the conventional locking method adopted by the rotating tools used in the surgical process is contact locking. When the rotating tool rotates at a high speed, the contact surface between the rotating tool and the locking structure will undergo friction, which will cause wear or failure of the parts, affect the surgical precision, and reduce the service life and stability of the surgical tool.
[0003] Therefore, the prior art needs to be further developed. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the above technical deficiencies, and provide a locking structure and a hand-held tool to solve the technical problem that the connection part of the surgical tool that needs to rotate is prone to wear in the related art.
[0005] To achieve the above technical purpose, the utility model adopts the following technical solutions: A locking structure is provided, including: a rotating assembly, which is rotatably arranged, and an installation channel is arranged in the rotating assembly for installing a component to be locked; a locking component is arranged on the rotating assembly, and the locking component is movably arranged to fix or release the component to be locked; a hand-held assembly, on which a pushing component is arranged, and the pushing component is movably arranged to drive the locking component to move; a connecting component, which has a first connecting part connected to the rotating assembly and a second connecting part connected to the hand-held assembly, so that there is a connection gap between the rotating assembly and the hand-held assembly, and the first connecting part and the second connecting part are rotatably connected to each other.
[0006] Further, the rotating assembly includes: a rotating part, which has a locking channel communicating with the installation channel, and a movable locking slider is arranged in the locking channel for locking or releasing the component to be locked, and there is a connection gap between the rotating part and the hand-held assembly; a driving component for driving the rotating part to rotate along the rotation axis.
[0007] Further, the locking component includes a locking part and a releasing part. The locking part is used to make the locking slider abut against the component to be locked, and there is a releasing gap between the releasing part and the rotating part. When the locking component moves in a direction away from the releasing part, the locking slider moves into the releasing gap to release the component to be locked.
[0008] Further, the rotating assembly includes a first limiting component arranged at an interval from the locking component, and there is a connection gap between the first limiting component and the hand-held assembly. The first limiting component is used to limit the movement of the locking component along the axis of the rotating assembly.
[0009] Further, an elastic member is disposed between the first limiting member and the locking member, and the elastic member is used to connect the first limiting member and the locking member.
[0010] Further, the handheld assembly includes: a handheld housing having a receiving cavity for receiving a connecting member and a rotating assembly; a limiting hole penetrating through the handheld housing; a pushing member sleeved outside the handheld housing, and a pushing protrusion is disposed on a side of the pushing member close to the handheld housing, and the pushing protrusion moves along the limiting hole, and the pushing protrusion is used to push the locking member to move so as to fix or release the member to be locked.
[0011] Further, a limiting protrusion is disposed on a side of the locking member away from the installation channel, and there is a connecting gap between the limiting protrusion and the handheld assembly; when the pushing member moves in a preset direction, the pushing protrusion abuts against the limiting protrusion to drive the locking member to move in the preset direction.
[0012] Further, a second limiting member is disposed on a side of the handheld assembly away from the receiving cavity, and the second limiting member is disposed at an interval from the pushing member. When the pushing member moves in a direction close to the second limiting member, the second limiting member abuts against the pushing protrusion to limit the movement of the pushing member.
[0013] Further, there are a plurality of connecting members, and the plurality of connecting members are sleeved outside the rotating assembly at intervals.
[0014] A handheld tool includes: a locking structure; and a member to be locked, which is detachably disposed in the installation channel.
[0015] Beneficial effects:
[0016] In the locking structure of the present utility model, when the rotating assembly drives the member to be locked to rotate and lock, it is in a non-contact state with the handheld assembly, and the two will not generate friction due to rotation, avoiding wear caused by friction at the connection of the surgical tool that needs to rotate, thereby reducing the accuracy of the surgical tool and shortening the service life of the surgical tool, and solving the technical problem of easy wear of the surgical tool that needs to rotate in the related art. Description of the Drawings
[0017] Figure 1 is a sectional view of the locking structure adopted in the embodiment of the present utility model;
[0018] Figure 2 is Figure 1 a partial enlarged schematic view of part A in
[0019] Figure 3 is a sectional view of the handheld assembly of the locking structure adopted in the embodiment of the present utility model;
[0020] Figure 4 isFigure 3 Partial enlarged schematic view of part B;
[0021] Figure 5 Schematic diagram of the handheld assembly of the locking structure adopted in the embodiment of the present utility model;
[0022] Figure 6 Schematic diagram of the locking component of the locking structure adopted in the embodiment of the present utility model.
[0023] Among them, the above-mentioned drawings include the following reference numerals:
[0024] 1. Rotating assembly; 10. Component to be locked; 11. Installation channel; 12. Locking component; 121. Locking part; 122. Release part; 123. Release gap; 124. Limiting projection; 13. Rotating part; 14. Locking slider; 15. First limiting component; 2. Handheld assembly; 20. Accommodating cavity; 21. Pushing component; 211. Pushing projection; 22. Handheld housing; 23. Limiting hole; 24. Second limiting component; 3. Connecting component; 30. Connecting gap; 31. First connecting part; 32. Second connecting part. Detailed implementation manners
[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0026] According to the embodiment of the present utility model, a locking structure is provided. Please refer to Figures 1 to 6 , including: a rotating assembly 1, which is rotatably arranged. An installation channel 11 is arranged in the rotating assembly 1, and the installation channel 11 is used for installing the component to be locked 10; a locking component 12 is arranged on the rotating assembly 1, and the locking component 12 is movably arranged to fix or release the component to be locked 10; a handheld assembly 2, on which a pushing component 21 is arranged, and the pushing component 21 is movably arranged to drive the locking component 12 to move; a connecting component 3, which has a first connecting part 31 connected to the rotating assembly 1 and a second connecting part 32 connected to the handheld assembly 2, so that there is a connecting gap 30 between the rotating assembly 1 and the handheld assembly 2, and the first connecting part 31 and the second connecting part 32 are rotatably connected to each other.
[0027] With the above settings, the rotating component 1 is locked with the component 10 to be locked, so as to drive the component 10 to be locked to rotate. At the same time, there is a connection gap 30 between the rotating component 1 and the handheld component 2. In this way, when the rotating component 1 drives the component 10 to be locked to rotate, it does not contact the handheld component 2, and the two will not generate friction due to the rotation of the rotating component 1, avoiding wear caused by friction at the connection of the surgical tool that needs to rotate, thereby reducing the accuracy of the surgical tool and shortening the service life of the surgical tool, and solving the technical problem of easy wear of the surgical tool that needs to rotate in the related art.
[0028] In the locking structure of this embodiment, refer to Figures 2 to 3 , the rotating component 1 includes: a rotating part 13, the rotating part 13 has a locking channel communicating with the installation channel 11, a movable locking slider 14 is arranged in the locking channel, the locking slider 14 is used to lock or release the component 10 to be locked, and there is a connection gap 30 between the rotating part 13 and the handheld component 2; a driving part, the driving part is used to drive the rotating part 13 to rotate along the rotation axis. In this way, the locking slider 14 moves along the locking channel towards the direction close to the installation channel 11 to lock the component 10 to be locked, and the locking slider 14 moves along the locking channel towards the direction away from the installation channel 11 to release the component 10 to be locked.
[0029] Preferably, there are multiple locking channels, and the multiple locking channels are arranged at intervals around the rotating part 13. The locking sliders 14 are arranged in the multiple locking channels, and the multiple locking sliders 14 abut against the component 10 to be locked from multiple directions to fixedly connect the component 10 to be locked and the rotating part 13.
[0030] Preferably, the locking slider 14 is spherical, so that the spherical locking slider 14 moves more smoothly in the locking channel.
[0031] In the locking structure of this embodiment, refer to Figure 2 、 Figure 5, the locking component 12 includes a locking portion 121 and a releasing portion 122. The locking portion 121 is used to make the locking slider 14 abut against the component 10 to be locked. There is a releasing gap 123 between the releasing portion 122 and the rotating component 13. When the locking component 12 moves in a direction away from the releasing portion 122, the locking slider 14 moves into the releasing gap 123 to release the component 10 to be locked. In this way, the locking component 12 is sleeved outside the rotating component 13. The side of the locking component 12 close to the rotating component 13 has a locking portion 121 and a releasing portion 122. When the locking portion 121 is sleeved outside the locking channel, the locking portion 121 squeezes the locking slider 14 to move in a direction close to the installation channel 11, so that the locking slider 14 locks the component 10 to be locked. When the locking component 12 moves to the position where the releasing portion 122 is sleeved outside the locking channel, the locking slider 14 can move into the releasing gap 123, so that the locking slider 14 does not contact the component 10 to be locked, and thus the component 10 to be locked is released.
[0032] In the locking structure of this embodiment, refer to Figure 2 , the rotating assembly 1 includes a first limiting component 15 arranged at an interval from the locking component 12. There is a connecting gap 30 between the first limiting component 15 and the hand-held assembly. The first limiting component 15 is used to limit the movement of the locking component 12 along the axis direction of the rotating assembly 1. In this way, the first limiting component 15 can limit the movement of the locking component 12, avoiding the locking component 12 moving too far, so that the locking channel communicates with the connecting gap 30 and the locking slider 14 disengages from the locking channel, affecting the use of the locking structure.
[0033] In the locking structure of this embodiment, refer to Figure 2 , an elastic member is arranged between the first limiting component 15 and the locking component 12. The elastic member is used to connect the first limiting component 15 and the locking component 12. In this way, when a force is applied to the locking component 12 to make it move in a direction close to the first limiting component 15, the elastic member is in a compressed state, and the component 10 to be locked is in a released state. The component 10 to be locked can move along the axial direction of the installation channel 11 in the installation channel 11. When it is necessary to fix the component 10 to be locked, release the locking component 12, and the elastic member rebounds to make the locking portion 121 of the locking component 12 squeeze the locking slider 14 into the locking channel to abut against the component 10 to be locked, so as to fix the component 10 to be locked.
[0034] Preferably, the elastic member is a spring.
[0035] In the locking structure of this embodiment, refer to Figure 3 、 Figure 6, the handheld assembly 2 includes: a handheld housing 22 having a receiving cavity 20 for receiving a connecting member 3 and a rotating assembly 1; a limiting hole 23 penetrating through the handheld housing 22; a pushing member 21 sleeved outside the handheld housing 22, with a pushing protrusion 211 provided on one side of the pushing member 21 close to the handheld housing 22. The pushing protrusion 211 moves along the limiting hole 23 and is used to push the locking member 12 to move so as to fix or release the member 10 to be locked. In this way, when the pushing member 21 moves, it drives the pushing protrusion 211 to move within the limiting hole 23. After the pushing protrusion 211 abuts against the locking member 12, it drives the locking member 12 to move together, thereby changing the locking state of the member 10 to be locked.
[0036] Specifically, when the member 10 to be locked needs to be released, the pushing member 21 moves in the direction close to the first limiting member 15, driving the locking member 12 to move in the direction close to the first limiting member 15, so that the release portion 122 moves to the outside of the locking channel, and the locking slider 14 can move into the release gap 123, further moving away from the member 10 to be locked, thus releasing the member 10 to be locked.
[0037] Preferably, the pushing protrusion 211 is spherical. An installation groove is provided on one side of the pushing member 21 close to the locking member 12 for installing the spherical pushing protrusion 211. At the same time, a limiting baffle is also provided on one side of the installation groove to limit the movement of the spherical pushing protrusion 211.
[0038] In the locking structure of this embodiment, refer to Figure 2 、 Figure 5 , a limiting protrusion 124 is provided on the side of the locking member 12 away from the installation channel 11, and there is a connection gap 30 between the limiting protrusion 124 and the handheld assembly 2; when the pushing member 21 moves in a preset direction, the pushing protrusion 211 abuts against the limiting protrusion 124 to drive the locking member 12 to move in the preset direction. In this way, there is a connection gap 30 between the limiting protrusion 124 and the handheld assembly 2, and there is also a connection gap 30 between the pushing protrusion 211 and the locking member 12. Therefore, in the normal locking state, when the locking member 12 rotates with the rotating assembly 1, it does not contact the handheld assembly 2, and there is no wear of parts caused by friction due to rotation, thereby affecting the accuracy and service life of the surgical tool. At the same time, when the member 10 to be locked needs to be released, the pushing member 21 drives the pushing protrusion 211 to move a certain distance and then can abut against the locking member 12, thereby driving the locking member 12 to move and realizing the switching of the state of the locking slider 14.
[0039] In the locking structure of this embodiment, refer to Figure 2 、 Figure 5, on the side of the handheld component 2 away from the accommodation cavity 20, a second limiting component 24 is provided. The second limiting component 24 is arranged at an interval from the pushing component 21. When the pushing component 21 moves towards the direction close to the second limiting component 24, the second limiting component 24 abuts against the pushing protrusion 211 to limit the movement of the pushing component 21.
[0040] Preferably, on the side of the second limiting component 24 close to the accommodation cavity 20, an installation groove is provided. An elastic member is arranged in the installation groove. One end of the elastic member is fixed in the installation groove, and the other end is connected to the pushing component 21. When a force is applied to the pushing component 21 to make it move towards the direction close to the second limiting component 24, the elastic member is in a compressed state. After releasing the pushing component 21, the elastic member drives the pushing component 21 back to its original position.
[0041] In the locking structure of this embodiment, refer to Figures 3 to 4 , there are multiple connecting components 3. The multiple connecting components 3 are sleeved on the outside of the rotating component 1 at intervals. In this way, the multiple connecting components 3 play a role in fixing and supporting the rotating component 1. The axes of the multiple connecting components 3 coincide, and the axis of the connecting component 3 is the rotation axis of the rotating component 1.
[0042] Specifically, the distance between the first connecting portion 31 and the second connecting portion 32 is greater than the maximum thickness of the locking component 12.
[0043] Preferably, the connecting component 3 is a bearing.
[0044] This embodiment provides a handheld tool, refer to Figure 1 , the handheld tool includes: a locking structure; a component to be locked 10, and the component to be locked 10 is detachably arranged in the installation channel 11.
[0045] Preferably, a ring groove is provided on the outside of the component to be locked 10, which cooperates with the locking slider 14 to realize the locking of the component to be locked 10.
[0046] With the above settings, when the rotating component 13 is connected to an external driver, it can drive the component to be locked 10 to rotate at a high speed, so as to realize drilling, grinding, etc.
[0047] Specifically, when installing the component 10 to be locked, the pushing component 21 is pushed and pulled towards the external driver, and at the same time, the pushing protrusion 211 is driven to move along the limiting hole 23 towards the external driver. When the pushing protrusion 211 moves to abut against the limiting protrusion 124, the locking component 12 is driven to continue moving to the right until the locking part 121 completely moves away from the locking channel. At this time, the locking slider 14 can completely disengage from the installation channel 11. After inserting the component 10 to be locked into the installation channel 11 through the hole, release the pushing component 21. Under the action of the elastic member, the pushing protrusion 211 moves to the left until it completely disengages from the limiting protrusion 124 on the locking component 12. At the same time, the locking component 12 moves to the left under the action of the elastic member until the locking part 121 presses the locking slider 14 into the installation channel 11 and stops moving. At this time, the locking slider 14 falls into the annular groove of the component 10 to be locked, realizing the locking of the component 10 to be locked.
[0048] Since the locking component 12, the first limiting component 15 and the rotating component 13 rotate together, there is little wear between the workpieces; the pushing protrusion 211 and the locking component 12 are in a non-contact state during the working state and there is no wear, so the service life and stability of the entire mechanism are improved.
[0049] It should be noted that the terms "first", "second", etc. in the specification, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0050] Optionally, the specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.
[0051] The serial numbers of the above embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments.
[0052] In the above embodiments of the present application, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0053] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.
Claims
1. A locking structure for fixing a component to be locked (10), characterized in that: include: A rotating assembly (1), the rotating assembly (1) being rotatably arranged, a mounting channel (11) being arranged inside the rotating assembly (1), the mounting channel (11) being used to mount the component to be locked (10); a locking component (12) being arranged on the rotating assembly (1), the locking component (12) being movably arranged to fix or release the component to be locked (10); A handheld component (2), wherein a pushing component (21) is provided on the handheld component (2), and the pushing component (21) is movably arranged to drive the locking component (12) to move; A connecting component (3), the connecting component (3) having a first connecting portion (31) connected to the rotating component (1) and a second connecting portion (32) connected to the handheld component (2), so that a connecting gap (30) is provided between the rotating component (1) and the handheld component (2), and the first connecting portion (31) and the second connecting portion (32) are relatively rotatably connected.
2. The locking structure according to claim 1, characterized in that: The rotating assembly (1) comprises: A rotating component (13), the rotating component (13) having a locking channel connected to the mounting channel (11), a movable locking slider (14) being arranged in the locking channel, the locking slider (14) being used to lock or release the component to be locked (10), and a connection gap (30) being provided between the rotating component (13) and the handheld component (2).
3. The locking structure according to claim 2, characterized in that: The locking component (12) comprises a locking portion (121) and a releasing portion (122); the locking portion (121) is used to make the locking slider (14) abut against the component (10) to be locked; a releasing gap (123) is provided between the releasing portion (122) and the rotating component (13); when the locking component (12) moves in a direction away from the releasing portion (122), the locking slider (14) moves into the releasing gap (123) to release the component (10) to be locked.
4. The locking structure according to claim 3, characterized in that: The rotating component (1) comprises a first limiting component (15) arranged at a distance from the locking component (12), and a connecting gap (30) is provided between the first limiting component (15) and the handheld component. The first limiting component (15) is used to limit the movement of the locking component (12) along the axial direction of the rotating component (1).
5. The locking structure according to claim 4, characterized in that: An elastic member is provided between the first limiting member (15) and the locking member (12), and the elastic member is used to connect the first limiting member (15) and the locking member (12).
6. The locking structure according to claim 1, characterized in that: The handheld component (2) comprises: A handheld housing (22), the handheld housing (22) having a receiving chamber (20), the receiving chamber (20) being used to receive the connecting component (3) and the rotating assembly (1); A limiting hole (23), the limiting hole (23) is arranged through the handheld shell (22); the pushing component (21) is sleeved on the outside of the handheld shell (22), and a pushing protrusion (211) is arranged on a side of the pushing component (21) close to the handheld shell (22), and the pushing protrusion (211) moves along the limiting hole (23), and the pushing protrusion (211) is used to push the locking component (12) to move, so as to fix or release the component to be locked (10).
7. The locking structure according to claim 6, characterized in that: A limiting protrusion (124) is provided on a side of the locking component (12) away from the installation channel (11), and a connection gap (30) is provided between the limiting protrusion (124) and the handheld component (2); when the pushing component (21) moves in a preset direction, the pushing protrusion (211) abuts against the limiting protrusion (124) to drive the locking component (12) to move along the preset direction.
8. The locking structure according to claim 7, characterized in that: A second limiting component (24) is arranged on a side of the handheld component (2) away from the accommodating cavity (20); the second limiting component (24) and the pushing component (21) are arranged at an interval; when the pushing component (21) moves in a direction approaching the second limiting component (24), the second limiting component (24) abuts against the pushing protrusion (211) to limit the movement of the pushing component (21).
9. The locking structure according to claim 1, characterized in that: There are a plurality of connecting components (3), and the plurality of connecting components (3) are sleeved on the outside of the rotating component (1) at intervals.
10. A handheld tool, characterized in that: The handheld tool comprises: The locking structure according to any one of claims 1 to 9; A component to be locked (10), wherein the component to be locked (10) is detachably arranged in the installation channel (11).