Locking mechanism and handle device

Abstract

The utility model discloses a locking mechanism and a handle device, and relates to the technical field of operation tools, and the locking mechanism comprises a first threaded hole, a connecting screw rod piece, a rotating piece and a locking screw rod piece; the connecting screw rod piece is in threaded connection with the first threaded hole; the rotating piece is connected with the connecting screw piece and used for driving the connecting screw piece to rotate; a second threaded hole is formed in the center of the connecting screw rod piece; the locking screw piece is in threaded connection with the second threaded hole, and the end, penetrating through the second threaded hole, of the locking screw piece forms a jacking part. The problem that the rotating angle is uncertain in a traditional single-stud jacking design is effectively solved, the locking process is easy to control, the locking effect is stable, and the locking force requirements in different scenes can be met; moreover, the whole structure is simple, operation is convenient, and the production cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of operating tools, in particular to a locking mechanism and a handle device. BACKGROUND

[0002] The handle device is an operating tool, which is widely used in many fields, including but not limited to the operation of medical equipment (such as surgical robots).

[0003] In the current technology, the handle device is usually composed of a handle body and a handle mounting seat, which are connected by a detachable manner. In order to enhance the stability after connection, a locking device is designed to fix the handle body and the handle mounting seat. The common locking method is to connect the stud with the thread of the handle body shell, the stud penetrates through the shell and tightly inserts the handle mounting seat of the shell to realize the locking. However, due to the uncertainty of the thread starting angle in the machining process, the rotation angle of the stud also exists uncertainty, which makes the locking process difficult to control and the locking effect unstable.

[0004] Therefore, there is an urgent need for an innovative solution to overcome the above problems. CONTENT OF THE INVENTION

[0005] Therefore, the purpose of the present application is to provide a locking mechanism and a handle device, which solves the technical problems of the traditional locking process difficult to control and unstable effect caused by the uncertainty of the rotation angle.

[0006] To achieve the above technical purpose, the present application provides a locking mechanism, which comprises a first threaded hole, a connecting screw rod, a rotating piece and a locking screw rod;

[0007] The connecting screw rod is threadedly connected with the first threaded hole;

[0008] The rotating piece is connected with the connecting screw rod for driving the connecting screw rod to rotate;

[0009] The connecting screw rod is provided with a second threaded hole in the center;

[0010] The locking screw rod is threadedly connected with the second threaded hole, and one end of the locking screw rod penetrating through the second threaded hole forms a pressing part.

[0011] Further, the rotating piece is a knob structure, which comprises a lever part and a connecting part;

[0012] One end of the connecting screw rod is connected to one side surface of the connecting part;

[0013] One end of the second threaded hole extends to the other side surface of the connecting part from one side surface of the connecting part.

[0014] Further, the other side of the connecting part is provided with a groove;

[0015] The second threaded hole communicates with the groove.

[0016] Further, an end cover is further included;

[0017] The end cover covers the groove.

[0018] Further, a limiting slot and a limiting screw member are further included;

[0019] The limiting slot is an arc-shaped slot and surrounds the first threaded hole;

[0020] The rotating member is provided with a third threaded hole;

[0021] The limiting screw member is threadedly connected with the third threaded hole, and one end of the limiting screw member penetrating through the third threaded hole extends into the limiting slot.

[0022] The application further discloses a handle device, which comprises a handle main body, a handle mounting seat and the locking mechanism;

[0023] One end of the handle main body is provided with a first docking chamber for active insertion of the handle mounting seat;

[0024] The first threaded hole of the locking mechanism is arranged on one side of the shell of the handle main body;

[0025] One end of the locking screw member of the locking mechanism penetrating through the second threaded hole is used for tightly inserting the handle mounting seat of the first docking chamber.

[0026] Further, the handle mounting seat is provided with a metal block in contact with one end of the locking screw member.

[0027] Further, the handle mounting seat is provided with a first docking mechanism for locking connection with the handle main body when the handle mounting seat is inserted into the first docking chamber.

[0028] Further, the first docking mechanism comprises a telescopic column pin;

[0029] The first docking chamber is provided with a column hole for insertion of the telescopic column pin;

[0030] The handle main body is provided with an unlocking button corresponding to the position of the column hole, which is used for pressing the telescopic column pin to make the telescopic column pin exit the column hole.

[0031] Further, the handle mounting seat is provided with a first foolproof assembly structure;

[0032] The first docking chamber is provided with a second foolproof assembly structure matched with the first foolproof assembly structure.

[0033] Further, the other end of the handle body is provided with a second docking chamber for docking the instrument;

[0034] The second docking chamber is provided with a second docking mechanism for connecting the instrument.

[0035] Further, the second docking mechanism comprises a lock catch and an elastic member;

[0036] The lock catch is installed in the second docking chamber and can move between an unlocking position and a locking position;

[0037] The elastic member connects the lock catch to provide an elastic force for driving the lock catch to move to the locking position;

[0038] One side of the lock catch is provided with a pressing part that can move out of the handle body.

[0039] Further, the lock catch is two and oppositely arranged;

[0040] The elastic member is at least two and respectively connects the lock catch;

[0041] The second docking mechanism further comprises a partition plate;

[0042] The partition plate is arranged between the two lock catches and the elastic members are respectively connected to the two sides of the partition plate.

[0043] From the above technical solution, it can be seen that the locking mechanism designed in the present application has the following beneficial effects:

[0044] 1. Based on the thread characteristics, the connecting screw rod can drive the locking screw rod to move synchronously while rotating to press the handle mounting seat. Moreover, the locking screw rod can also realize the pressing movement by rotating itself. Therefore, even if the rotation angle of the connecting screw rod is uncertain, the rotation angle can still be corrected by adjusting the distance of the rod segment of the locking screw rod passing through the second threaded hole, so as to ensure that the handle mounting seat can be accurately pressed after a certain rotation angle, and the pressing force of the handle mounting seat can also be adjusted. This not only effectively solves the problem of uncertain rotation angle in the traditional single screw pressing design, makes the locking process easy to control, and stabilizes the locking effect, but also meets the locking force requirement in different scenes.

[0045] 2. The overall structure is simple, the operation is convenient, and the production cost is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0047] Figure 1 An exploded schematic view of a locking mechanism provided in the present application;

[0048] Figure 2 A schematic view of a first threaded hole and a limiting groove structure of a locking mechanism provided in the present application;

[0049] Figure 3 A schematic view of a rotating piece and a connecting screw piece structure of a locking mechanism provided in the present application;

[0050] Figure 4 An exploded schematic view of a handle device provided in the present application;

[0051] Figure 5 A first perspective view of a handle body of a handle device provided in the present application;

[0052] Figure 6 A second perspective view of a handle body of a handle device provided in the present application;

[0053] Figure 7 A schematic view of a handle body of a handle device provided in the present application; Figure 6 An enlarged schematic view of position A in

[0054] Figure 8 A perspective view of a handle body of a handle device provided in the present application, showing a first threaded hole and a limiting groove;

[0055] In the figure: 1, rotating piece; 11, lever part; 12, connecting part; 13, groove; 14, third threaded hole; 2, connecting screw piece; 21, second threaded hole; 3, end cover; 41, first threaded hole; 42, limiting groove; 5, handle body; 51, first docking chamber; 52, second docking chamber; 53, unlocking button; 54, column hole; 55, shell; 56, second fool-proof assembly structure; 6, handle mounting seat; 61, metal block; 62, telescopic column pin; 63, first fool-proof assembly structure; 71, lock catch; 711, pressing part; 72, elastic piece; 73, partition plate. DETAILED DESCRIPTION

[0056] clear, complete and accurate description of the technical solutions of the embodiments of the present application will be given with reference to the drawings. Obviously, the described embodiments are only some, but not all, of the embodiments of the present application. Based on the embodiments of the present application described, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0057] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the embodiments of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0058] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be replaceably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication between two elements inside. For those of ordinary skill in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0059] The embodiments of the present application disclose a locking mechanism and a handle device.

[0060] Please refer to Figures 1 to 4 An embodiment of a locking mechanism provided in the embodiments of the present application includes:

[0061] The first threaded hole 41, the connecting screw rod piece 2, the rotating piece 1 and the locking screw rod piece (not shown in the figure).

[0062] The connecting screw rod piece 2 is threadedly connected with the first threaded hole 41. The first threaded hole 41 can be a through hole or a counterbore. The connecting screw rod piece 2 can be a stud.

[0063] The rotating member 1 is connected with the connecting screw member 2, and is used to drive the connecting screw member 2 to rotate. The rotating member 1 and the connecting screw member 2 are connected in a certain way, and the purpose is to drive the connecting screw member 2 to rotate. The connection mode can be various, for example, the rotating member 1 and the connecting screw member 2 can be integrally formed, that is, they can be manufactured as a single continuous part, which can ensure that the connection between them is very firm. In addition, the rotating member 1 and the connecting screw member 2 can also be fixed by welding. Welding is a common method for connecting metal parts. Through welding, the rotating member 1 and the connecting screw member 2 can be firmly combined together, and the specific limitation is not limited.

[0064] The connecting screw member 2 is provided with a second threaded hole 21 (the second threaded hole 21 is a through hole); the locking screw member is threadedly connected with the second threaded hole 21, and one end of the locking screw member passing through the second threaded hole 21 forms a clamping portion; the locking screw member can be a screw, a bolt, etc.

[0065] The use process is as follows:

[0066] The rotating member 1 is operated to screw the connecting screw member 2 on the first threaded hole 41 and to the appropriate position. If the connecting screw member 2 adopts right-handed thread (preferably), when the rotating member 1 rotates to the right by a certain angle, the locking screw member is screwed into the second threaded hole 21 to the clamping handle mounting seat 6. At this time, the rotating member 1 is rotated to the left, and due to the characteristics of the thread, the rotating member 1 and the connecting screw member 2 will move outward together, and the locking screw member in the second threaded hole 21 will also move outward together, thereby releasing the clamping of the handle mounting seat 6 and achieving unlocking; the rotating member 1 is rotated to the right, and due to the characteristics of the thread, the rotating member 1 and the connecting screw member will move inward, and the locking screw member in the second threaded hole 21 will also move inward, thereby clamping the handle mounting seat 6 to achieve the locking of the handle main body 5 and the handle mounting seat 6.

[0067] The locking mechanism designed in the present application has the following beneficial effects:

[0068] 1. Based on the characteristics of the thread, the connecting screw member 2 can drive the locking screw member to move synchronously while rotating, so as to clamp the handle mounting seat 6. Moreover, since the locking screw member can also realize clamping movement by rotating itself, even if the rotation angle of the connecting screw member 2 is uncertain, the rotation angle can still be corrected by adjusting the distance of the rod segment of the locking screw member passing through the second threaded hole, so as to ensure that the handle mounting seat 6 can be accurately clamped after a certain rotation angle, and the clamping force of the handle mounting seat 6 can also be adjusted. Not only can the problem of uncertain rotation angle in the traditional single stud clamping design be solved, but also the locking process can be easily controlled, the locking effect is stable, and the locking force requirement in different scenes can also be met.

[0069] 2. Due to the fewer components, the overall structure is more compact and simpler, making it easier to assemble and maintain. This not only simplifies the production process and reduces labor and time costs, but also improves product reliability and durability. Simultaneously, the simple operation reduces the skill requirements for operators, allowing more people to quickly learn and master the operation, further improving work efficiency. Therefore, the locking mechanism designed in this application demonstrates significant cost-effectiveness and practical value in real-world applications.

[0070] The above is an embodiment of a locking mechanism provided in this application. The following is an embodiment of a locking mechanism provided in this application. Please refer to the following for details. Figures 1 to 3 .

[0071] Based on the solution of Embodiment 1 above:

[0072] Furthermore, such as Figure 3 As shown, the rotating part 1 is a knob structure, including a lever part 11 and a connecting part 12;

[0073] The lever 11 is located at one end of the connecting part 12 (preferably a one-piece design) to facilitate manual rotation of the rotating part 1. The connecting part 12 is connected to the locking screw to ensure that the locking screw can be rotated during rotation. The knob structure design makes operation more intuitive and convenient. Users can lock or unlock the device simply by rotating the lever 11, greatly improving the user experience.

[0074] One end of the connecting screw 2 is connected to one side of the connecting part 12; one end of the second threaded hole 21 extends from one side of the connecting part 12 to the other side of the connecting part 12 to penetrate the connecting part 12, ensuring that the locking screw can be inserted into the second threaded hole 21.

[0075] Furthermore, such as Figure 3 As shown, the other side of the connecting part 12 is provided with a groove 13, and the second threaded hole 21 communicates with the groove 13; the groove 13 is designed to prevent the locking screw from protruding from the connecting part 12, so as to improve the aesthetics.

[0076] Furthermore, such as Figure 1 As shown, it also includes an end cap 3, which is installed in the groove 13. The end cap 3 can cover the locking screw to achieve the hidden installation of the locking screw, further improving the aesthetics. At the same time, it can protect the locking screw, reduce the corrosion of external factors, and extend its service life.

[0077] Furthermore, such as Figure 2As shown, it also includes a limiting groove 42 and a limiting screw member (not shown in the figure); the limiting groove 42 is an arc-shaped groove, which is arranged around the first threaded hole 41; the rotating member 1 is provided with a third threaded hole 14; the limiting screw member is threadedly connected with the third threaded hole 14, and one end thereof penetrating through the third threaded hole 14 extends into the limiting groove 42; the limiting screw member can be a screw, a bolt, etc., without limitation.

[0078] The cooperation design of the limiting groove 42 and the limiting screw member can limit the rotation angle of the rotating member 1, ensure that the locking mechanism can be accurately positioned when locking or unlocking, and at the same time avoid the connection screw member 2 from being pulled out of the first threaded hole 41, and also avoid the damage or functional failure of the locking mechanism caused by excessive rotation. In addition, this design also makes the locking mechanism be able to emit clear sound or tactile feedback (collision feedback between the limiting screw member and the limiting groove 42) when locking or unlocking, helping the user to confirm whether the operation is in place, and further improving the user experience.

[0079] As shown in Figure 5 and Figure 8 shown, the application also discloses a handle device, which comprises a handle body 5, a handle mounting seat 6 and a locking mechanism.

[0080] One end of the handle body 5 is provided with a first docking chamber 51 for the active insertion of the handle mounting seat 6; the first threaded hole 41 of the locking mechanism is opened on one side of the shell 55 of the handle body 5; one end of the locking screw member of the locking mechanism penetrating through the second threaded hole 21 is used for tightly inserting the handle mounting seat 6 in the first docking chamber 51.

[0081] Further, as shown in Figure 5 , the handle mounting seat 6 is provided with a metal block 61 (such as an iron block, without limitation) in contact with one end of the locking screw member. The metal block 61 can effectively disperse the locking force of the locking screw member transmitted to the handle mounting seat 6, and enhance the stability and durability of the locking mechanism. The design of the metal block 61 also makes the locking process more smooth, reduces the risk of damage to the handle mounting seat 6 caused by excessive locking force. In addition, the contact surface of the metal block 61 and the locking screw member can be specially treated to have good wear resistance and corrosion resistance, further prolonging the service life.

[0082] Further, as shown in Figure 5As shown, the handle mounting seat 6 is provided with a first docking mechanism for locking connection with the handle body 5 when the handle mounting seat 6 is inserted into the first docking chamber 51 to the right position. By providing the first docking mechanism on the handle mounting seat 6, when the handle mounting seat 6 is inserted into the first docking chamber 51 and reaches the predetermined position, the first docking mechanism can be locked with the handle body 5. This design effectively enhances the connection stability and reliability between the handle mounting seat 6 and the handle body 5, preventing loosening or falling during use, thereby improving the overall use safety and user experience. In addition, this structure also simplifies the installation and disassembly process, making it easier for users to operate and maintain.

[0083] Further, as shown in Figure 5 and Figure 6 , the first docking mechanism includes a telescopic pin 62; the first docking chamber 51 is provided with a pin hole 54 for the telescopic pin 62 to insert; the handle body 5 is provided with an unlocking button 53 corresponding to the position of the pin hole 54, which is used to press the telescopic pin 62 to make the telescopic pin 62 exit the pin hole 54. This docking mechanism design has the following beneficial effects:

[0084] Simplify the operation: by setting the unlocking button 53, the user can easily press the telescopic pin 62 to achieve quick unlocking. Improve efficiency: the design of the telescopic pin 62 makes the connection and separation of the handle body 5 and the handle mounting seat 6 more rapid, improving the overall work efficiency.

[0085] The telescopic pin 62 can be designed as two, and symmetrically designed.

[0086] Two telescopic pins 62 work simultaneously, which can further improve the stability and safety of docking.

[0087] Further, as shown in Figure 5 and Figure 6 , the handle mounting seat 6 is provided with a first foolproof assembly structure 63; the first docking chamber 51 is provided with a second foolproof assembly structure 56 cooperating with the first foolproof assembly structure 63; this design effectively prevents the handle mounting seat 6 from being misassembled or misassembled during installation (avoids the handle mounting seat 6 from being installed upside down, realizing that the docking installation can only be performed from one direction), improving the assembly accuracy and efficiency. At the same time, the use of the foolproof assembly structure also enhances the connection stability between the handle mounting seat 6 and the first docking chamber 51. The first foolproof assembly structure 63 and the second foolproof assembly structure 56 can be a stepped structure, taking the first foolproof assembly structure 63 as an example, two stepped structures are symmetrically arranged, which can divide the handle mounting seat 6 into a large end part and a small end part; of course, it can also be other structures, which are not limited.

[0088] Further, as shown in Figure 5 andFigure 7 As shown, the other end of the handle body 5 is provided with a second docking chamber 52 for docking the instrument; the second docking chamber 52 is provided with a second docking mechanism for connecting the instrument.

[0089] Further, as shown, Figure 7 The second docking mechanism includes a lock catch 71 and an elastic member 72; the lock catch 71 is installed in the second docking chamber 52 and can move between an unlocked position and a locked position; the elastic member 72 is connected to the lock catch 71 for providing an elastic force to drive the lock catch 71 to move to the locked position; one side of the lock catch 71 is provided with a pressing portion 711 that can move out of the handle body 5.

[0090] The part of the instrument inserted into the second docking chamber 52 is provided with a lock slot for the lock catch 71 to be clamped into; when the instrument is inserted into the second docking chamber 52 to the right position, the lock catch 71 is clamped into the lock slot to complete the docking and fixing of the handle body 5 and the instrument. When it is needed to separate the handle body 5 and the instrument, the lock catch 71 is moved from the locked position to the unlocked position by pressing the pressing portion 711 against the elastic force, and the lock catch 71 exits the lock slot, at which time the instrument can be pulled out of the second docking chamber 52 to realize the quick separation of the handle body 5 and the instrument.

[0091] The cooperation of the lock catch 71 and the elastic member 72 not only makes the docking process more stable and reliable, but also facilitates the user to operate quickly, improving the overall use convenience. In addition, the design of the lock catch 71 and the elastic member 72 can also be adjusted according to actual needs to meet the docking needs of different instruments, further improving the applicability and flexibility of the handle device.

[0092] Further, as shown, Figure 7 The lock catch 71 is two and oppositely arranged; the elastic member 72 is at least two and respectively connected to the lock catch 71; the second docking mechanism further includes a partition plate 73; the partition plate 73 is arranged between the two lock catches 71 and respectively connected to the elastic members 72 on both sides.

[0093] The two lock catches 71 are oppositely arranged, which can better balance the locking force and ensure that the instrument is uniformly stressed during docking, improving the stability and safety of docking. At the same time, the arrangement of at least two elastic members 72 can further enhance the locking effect of the lock catch 71, preventing docking failure caused by failure of a single elastic member 72. The design of the partition plate 73 plays a role in isolation and support, so that the two lock catches 71 do not interfere with each other (operate independently), and also provides a stable connection point for the elastic member 72, further improving the reliability and durability of the locking mechanism.

[0094] The elastic member 72 can be a compression spring, which is not limited in particular.

[0095] The locking mechanism and handle device provided by the application are described in detail above, and for those skilled in the art, the specific implementation manners and application ranges can be changed according to the idea of the embodiments of the application. In conclusion, the content of the specification should not be understood as a limitation on the application.

Claims

1. A locking mechanism, characterized in that The first threaded hole (41), the connecting screw rod (2), the rotating part (1) and the locking screw rod are included. The connecting screw rod (2) is in threaded connection with the first threaded hole (41). The rotating part (1) is connected with the connecting screw rod (2) and used for driving the connecting screw rod (2) to rotate. The connecting screw rod (2) is provided with a second threaded hole (21) in the center. The locking screw rod is in threaded connection with the second threaded hole (21), and one end of the locking screw rod penetrates through the second threaded hole (21) and forms a top pressing part.

2. The locking mechanism of claim 1, wherein, The rotating part (1) is in the structure of a knob and includes a lever part (11) and a connecting part (12). One end of the connecting screw rod (2) is connected to one side of the connecting part (12). One end of the second threaded hole (21) extends to the other side of the connecting part (12) from one side of the connecting part (12).

3. The locking mechanism of claim 2, wherein, The other side of the connecting part (12) is provided with a groove (13). The second threaded hole (21) is in communication with the groove (13).

4. The locking mechanism of claim 3, wherein, The end cover (3) is further included. The end cover (3) is covered on the groove (13).

5. The locking mechanism of claim 1, wherein, The limiting slot (42) and the limiting screw rod are further included. The limiting slot (42) is an arc-shaped slot and is arranged around the first threaded hole (41). The third threaded hole (14) is arranged on the rotating part (1). The limiting screw rod is in threaded connection with the third threaded hole (14), and one end of the limiting screw rod penetrates into the limiting slot (42) through the third threaded hole (14).

6. Handle device, characterized in that The handle main body (5), the handle mounting seat (6) and the locking mechanism are included. One end of the handle main body (5) is provided with a first docking chamber (51) for the handle mounting seat (6) to be movably inserted. The first threaded hole (41) of the locking mechanism is arranged on one side of the shell (55) of the handle main body (5). One end of the locking screw rod of the locking mechanism penetrates through the second threaded hole (21) and is used for being top-pressed and inserted into the handle mounting seat (6) in the first docking chamber (51).

7. The handle device of claim 6, wherein The metal block (61) is arranged on the handle mounting seat (6) and is in contact with one end of the locking screw rod.

8. The handle device of claim 6, wherein The first docking mechanism is arranged on the handle mounting seat (6) and is used for being locked and connected with the handle main body (5) when the handle mounting seat (6) is inserted into the first docking chamber (51) in place.

9. The handle device of claim 8, wherein, The first docking mechanism includes the telescopic column pin (62). The column hole (54) is arranged in the first docking chamber (51) and is used for the telescopic column pin (62) to be inserted. The unlocking button (53) is arranged on the handle main body (5) and is used for pressing the telescopic column pin (62) to make the telescopic column pin (62) exit the column hole (54).

10. The handle device of claim 6, wherein, The first fool-proof assembly structure (63) is arranged on the handle mounting seat (6). The second fool-proof assembly structure (56) is arranged in the first docking chamber (51) and is matched with the first fool-proof assembly structure (63).

11. The handle device of claim 6, wherein, The second docking chamber (52) is arranged on the other end of the handle main body (5) and is used for docking instruments. The second docking chamber (52) is provided with a second docking mechanism for connecting the instrument.

12. The handle device of claim 11, wherein, The second docking mechanism comprises a lock catch (71) and an elastic member (72); The lock catch (71) is installed in the second docking chamber (52) and is movable between an unlocking position and a locking position; The elastic member (72) is connected to the lock catch (71) and provides an elastic force for driving the lock catch (71) to move to the locking position; One side of the lock catch (71) is provided with a pressing portion (711) which is movable out of the handle main body (5).

13. The handle device of claim 12, wherein, The lock catch (71) is provided in two and is oppositely arranged; The elastic member (72) is provided in at least two and is connected to the lock catch (71) respectively; The second docking mechanism further comprises a partition plate (73); The partition plate (73) is arranged between the two lock catches (71) and is connected to the elastic members (72) on both sides.

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