Locking device and anastomat

Abstract

The utility model discloses a locking device, one end of the locking device is connected with an adapter, the other end of the locking device is connected with a handle host, the locking device is characterized by comprising an adapter joint (18) and a handle host joint (19), and the adapter joint (18) and the handle host joint (19) are movably connected and used for fixing the adapter and the handle host. The locking device designed by the utility model has the functions of convenient and fast adapter installation and automatic locking after installation, and when the adapter is disassembled and replaced, the release push button is shifted to automatically pop up the adapter for a certain distance, thereby facilitating the disassembly of the adapter.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a locking device and an anastomosis device. Background Art

[0002] In surgical operations, medical laparoscopic cutting staplers have become an indispensable auxiliary medical device in the process of suturing human tissues. With the development of medicine and product research and development, more and more multifunctional staple products are used in clinical practice, and their application scope has involved various fields such as gastrointestinal surgery, hepatobiliary surgery, thoracic surgery, urology, and gynecology, becoming one of the indispensable tools for doctors. The application of laparoscopic cutting staplers has many advantages such as less bleeding during surgery, shorter operation time, reduced manual operation errors, avoidance of infection, and rapid postoperative functional recovery.

[0003] Electric laparoscope is a commonly used type of medical stapler. Electric laparoscope stapler with disposable stapler cartridge is suitable for the resection, transection and anastomosis of tissues in abdominal, obstetrics and gynecology, pediatric and thoracic surgery. It can also be used for the resection and transection of liver parenchyma, liver blood vessels and gallbladder duct.

[0004] The intelligent stapler includes a handle host, an adapter and a stapler magazine assembly. The handle host and the adapter are connected by an automatic locking device, which allows the adapter to be quickly connected to the handle host, reducing the preparation time when using the instrument.

[0005] Most of the currently available electric laparoscopes are disposable and have no adapters. Some of the laparoscopes with adapters require precise alignment during installation, which is inconvenient. After installation, there is a large gap between the adapter and the host, which affects the doctor's feel when using it.

[0006] The technical problem to be solved by the utility model is the installation and replacement of the adapter and the handle host, so that the handle host and the adapter can be matched more conveniently and quickly, the preparation time of medical staff can be reduced, and the work intensity of medical staff can be effectively reduced;

[0007] How to solve the technical problem of installation and replacement of the adapter and the handle host in the prior art is a technical problem that urgently needs to be solved. Utility Model Content

[0008] The technical problem to be solved by the utility model is to solve the technical problem of installation and replacement of the adapter and the handle host in the prior art.

[0009] In order to solve the above technical problems, the technical solutions provided by the utility model are as follows:

[0010] A locking device, one end of which is connected to an adapter and the other end of which is connected to a handle host, characterized in that it comprises an adapter connector (18) and a handle host connector (19), wherein the adapter connector (18) and the handle host connector (19) are movably connected to fix the adapter to the handle host.

[0011] Furthermore, the adapter joint (18) comprises an adapter connector (1), a screw rotary joint fixing block (2), a screw rotary joint spring (3), a screw rotary joint (4), an adapter contact joint (5), and a rotary joint fixing block pin (6);

[0012] The outer diameters of the screw rod rotary joint spring (3) and the screw rod rotary joint (4) are the same;

[0013] The screw rod rotary joint fixing block (2) is a hollow structure, the inner diameter of the distal end of the hollow structure is larger than the outer diameter of the screw rod rotary joint (4), and the screw rod rotary joint (4) and the screw rod rotary joint spring (3) are sequentially sleeved inside the screw rod rotary joint fixing block (2);

[0014] The screw rod rotary joint fixing block (2) is sleeved in the adapter connector (1);

[0015] A fixing groove (201) is provided at the proximal end of the screw rod rotary joint fixing block (2) for fixing the adapter contact joint (5);

[0016] The screw rod rotary joint fixing block (2) is fixed to the adapter connector (1) via the rotary joint fixing block pin (6).

[0017] Furthermore, the hollow inner diameter of the proximal end of the hollow structure of the screw rotary joint fixing block (2) is smaller than the hollow inner diameter of the distal end.

[0018] Furthermore, an opening groove (203) is provided on the outer surface of the screw rotary joint fixing block (2), and a guide protrusion (104) is provided on the inner wall surface of the adapter connector (1); through the cooperation between the opening groove (203) and the guide protrusion (104), the adapter connector (1) is fixedly sleeved inside the screw rotary joint fixing block (2).

[0019] Furthermore, the handle host connector (19) part includes an adapter bracket (7), an adapter fixing block rotating frame (9), an adapter fixing block (10), a handle housing connector (12), and an adapter fixing block rotating frame push button (13);

[0020] The distal end of the adapter bracket (7) is sleeved on the adapter fixing block rotating frame (9);

[0021] The side wall of the adapter connector (1) is provided with a mounting guide groove (101) for the adapter fixing block (10) to slide.

[0022] The proximal protrusion (1001) of the adapter fixing block (10) is installed in the rotating frame slot (901) of the adapter fixing block rotating frame (9), and the distal protrusion (1002) of the adapter fixing block (10) is installed in the fixing block distal protrusion installation hollow groove (702) of the adapter bracket (7);

[0023] The adapter fixing block rotating frame push button (13) is installed on the outer surface of the side wall of the handle housing joint (12);

[0024] The adapter fixing block rotating frame push button (13) is pushed, and the adapter fixing block rotating frame push button (13) triggers the adapter fixing block rotating frame (9) to rotate, thereby driving the adapter fixing block (10) to rotate along the card slot (105) of the adapter connector (1) and rotate to the installation guide slot (101), so that the handle host connector (19) is separated from the adapter connector (18).

[0025] Furthermore, the handle host connector (19) also includes an adapter fixing block rotating frame spring (8), a first spring groove (704) is provided on the distal end surface of the adapter bracket (7), and a second spring groove (903) is provided on the inner side wall surface of the adapter fixing block rotating frame (9);

[0026] One end of the adapter fixing block rotating frame spring (8) abuts against the first spring slot (704), and the other end abuts against the second spring slot (903);

[0027] When the adapter fixing block rotating frame spring (8) undergoes elastic deformation, the adapter fixing block rotating frame (9) is caused to rotate on the adapter bracket (7).

[0028] Furthermore, the handle host connector (19) also includes a handle housing connector (12) and an adapter signal connector (16);

[0029] The adapter signal connector (16) is mounted on the adapter rotation signal connector mounting hole (708) of the adapter bracket (7);

[0030] The adapter fixing block rotating frame push button (13) is mounted on the outer surface of the side wall of the handle housing joint (12).

[0031] Furthermore, the handle host connector (19) also includes an adapter rotary connector (14), an adapter rotary connector retaining spring (15), and an elastic contact ball (17);

[0032] The adapter rotary joint (14) is installed in the adapter rotary joint installation hole (705) of the adapter bracket (7);

[0033] The adapter rotary joint retaining spring (15) clamps the adapter rotary joint (14) at the step (707) of the adapter bracket (7);

[0034] The elastic bumper (17) is located in a bumper installation groove (703) on the inner end surface of the adapter bracket (7).

[0035] Furthermore, the adapter rotary joint (14) passes through the center hole at the proximal end of the screw rotary joint fixing block (2) and is sleeved with the screw rotary joint (4). When the adapter rotary joint (14) and the screw rotary joint (4) are not aligned, the adapter rotary joint (14) will push the screw rotary joint (4) to press the screw rotary joint spring (3) backwards. When the adapter rotary joint (14) is rotated, the adapter rotary joint (14) will be aligned with the screw rotary joint (4), so that the screw rotary joint (4) is sleeved on the adapter rotary joint (14) under the elastic force of the screw rotary joint spring (3), so that the screw rotary joint (4) and the adapter rotary joint (14) are matched.

[0036] Furthermore, when the adapter connector (18) and the handle host connector (19) perform a locking action, the distal protrusion (1002) of the adapter fixing block (10) slides along the installation guide groove (101) toward the distal end of the adapter connector 1 () until it enters the slot (105) of the adapter connector (1), and continues to slide along the track of the slot (105) until the adapter fixing block (10) moves to the first preset position of the adapter bracket (7), thereby completing the locking action of the adapter connector (18) and the handle host connector 1 (9).

[0037] Furthermore, when the adapter connector (18) and the handle host connector (19) perform an unlocking action, the adapter fixing block rotating frame push button (13) is pushed, and the adapter fixing block rotating frame push button (13) drives the adapter fixing block rotating frame (9), and the adapter fixing block rotating frame (9) rotates to drive the adapter fixing block (10) to slide along the track of the slot (105) until it slides to the installation guide groove (101), and continues to slide along the installation guide groove (101) until it slides to the second preset position, thereby completing the unlocking action of the adapter connector (18) and the handle host connector (19).

[0038] The utility model also discloses a stapler, comprising any one of the locking devices described above.

[0039] After adopting such a design, the utility model has at least the following advantages:

[0040] (1) The locking device designed in the utility model has the function of convenient and quick installation of the adapter and automatic locking after installation. When the adapter is disassembled and replaced, the adapter will automatically pop out a certain distance by pushing the release button, which is convenient for disassembly of the adapter.

[0041] (2) The automatic locking device of the utility model is designed to cooperate with the shaft hole, so that the adapter and the handle host can cooperate more precisely, and the transmission efficiency of the product is higher when in use.

[0042] (3) The adapter screw rotary joint of the automatic locking device designed in the utility model and the adapter rotary joint of the handle main unit have a blind insertion function, and there is no need to align the adapter screw rotary joint with the handle main unit transmission shaft during installation.

[0043] (4) The electronic signal transmission method of the automatic locking device designed in the utility model uses elastic contacts. After the adapter is installed, the contacts are compressed a certain distance. When the device vibrates, the signal will not be interrupted.

[0044] (5) The utility model has a simple structure, good effect, low cost and easy process implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Figure 1 It is a schematic structural diagram of an adapter connector (18) and a handle host connector (19) of an embodiment of the utility model;

[0046] Figure 2 It is a structural schematic diagram of an adapter connector (18) of an embodiment of the utility model;

[0047] Figure 3 It is a cross-sectional schematic diagram of an adapter connector (18) of an embodiment of the utility model;

[0048] Figure 4 This is a partial structural diagram of a handle host connector (19) of an embodiment of the utility model;

[0049] Figure 5-1 This is a schematic diagram of the structure of an adapter bracket according to an embodiment of the utility model;

[0050] Figure 5-2 This is a schematic diagram of the bottom end surface structure of the adapter bracket in one embodiment of the utility model;

[0051] Figure 6 This is a schematic diagram of the structure of the adapter fixing block rotating frame according to an embodiment of the utility model;

[0052] Figure 7-1 It is a partial cross-sectional schematic diagram of a handle host connector (19) of an embodiment of the utility model;

[0053] Figure 7-2 It is a bottom view of a portion of a handle host connector (19) of an embodiment of the utility model;

[0054] Figure 8 It is a schematic diagram of the cross-sectional structure of a locking device according to an embodiment of the utility model;

[0055] Figure 9-1 This is a bottom view of a locking device according to an embodiment of the utility model;

[0056] Figure 9-2 This is a schematic diagram of a locking device according to an embodiment of the utility model;

[0057] Fig.10 This is a schematic diagram of the installation of a locking device according to an embodiment of the utility model;

[0058] Figure 11-1 This is a bottom view schematic diagram of the disassembly of the locking device of an embodiment of the utility model;

[0059] Figure 11-2 This is a schematic diagram of disassembling a locking device according to an embodiment of the utility model;

[0060] Fig.12 This is a schematic diagram of a disassembled cross section of a locking device according to an embodiment of the utility model;

[0061] In the accompanying drawings, (1) is the adapter connector, (101) is the installation guide groove, (102) is the outer wall positioning groove, (103) is the pin insertion hole, (104) is the guide protrusion, (105) is the card slot, (2) is the screw rotary joint fixing block, (201) is the fixing groove, (202) is the fixing block pin insertion hole, (203) is the open groove, (3) is the screw rotary joint spring, (4) is the screw rotary joint, (5) is the adapter contact joint, (6) is the rotary joint fixing block pin, (7) is the adapter bracket, (701) is the bracket inner wall groove, (702) is the fixing block distal protrusion installation hollow groove, (703) is the ball installation groove, (704) is the spring groove, (705) is the adapter rotary joint installation hole, (706) is the adapter fixing block rotation frame installation hole Position, (707) is a step, (708) is an adapter signal connector mounting hole, (8) is an adapter fixed block rotating frame spring, (9) is an adapter fixed block rotating frame, (901) is a rotating frame slot, (902) is a bracket protrusion, (903) is a spring slot, (10) is an adapter fixed block, (1001) is a proximal protrusion, (1002) is a distal protrusion, (11) is an adapter bracket sleeve, (12) is a handle housing joint, (13) is an adapter fixed block rotating frame push button, (1301) is a push-twist protrusion, (14) is an adapter rotating joint, 1(401) is an end, (15) is an adapter rotating joint retaining spring, (16) is an adapter signal connector, (17) is an elastic bump; (18) is an adapter joint, and (19) is a handle host joint. DETAILED DESCRIPTION

[0062] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0063] In this document, “up”, “down”, “pitch”, “yaw”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0064] Unless otherwise stated, the numerical ranges herein include not only the entire range within its two endpoints but also include several sub-ranges contained therein.

[0065] The end of each component close to the operator is defined as the proximal end, and the end away from the operator is defined as the distal end. The expressions of the proximal end and the distal end are only used to make the description simple and clear, and should not be understood as any limitation of the present invention.

[0066] like Figure 1-12 As shown, an embodiment of the utility model provides a locking device, one end of which is connected to an adapter, and the other end of which is connected to a handle host. The locking device includes an adapter connector (18) and a handle host connector (19). The adapter connector (18) and the handle host connector (19) are movably connected to fix the adapter to the handle host.

[0067] Specifically, the adapter joint (18) comprises an adapter connector (1), a screw rotary joint fixing block (2), a screw rotary joint spring (3), a screw rotary joint (4), an adapter contact joint (5), and a rotary joint fixing block pin (6);

[0068] The outer diameters of the screw rod rotary joint spring (3) and the screw rod rotary joint (4) are the same;

[0069] The screw rotating joint fixing block (2) is a hollow structure, and one end of the hollow structure with a larger inner diameter is larger than the outer diameter of the screw rotating joint (4). The screw rotating joint (4) and the screw rotating joint spring (3) are sequentially sleeved inside the screw rotating joint fixing block (2);

[0070] The screw rod rotary joint fixing block (2) is sleeved in the adapter connector (1);

[0071] A fixing groove (201) is provided at the proximal end of the screw rod rotary joint fixing block (2) for fixing the adapter contact joint (5);

[0072] The screw rod rotary joint fixing block (2) is provided with a fixing block pin insertion hole (202), and the corresponding adapter connecting head (1) is provided with a pin insertion hole (103). When the screw rod rotary joint fixing block (2) is sleeved in the adapter connecting head (1), the screw rod rotary joint fixing block pin (6) is inserted into the fixing block pin insertion hole (202) and the pin insertion hole (103), so that the screw rod rotary joint fixing block (2) and the adapter connecting head (1) are fixed.

[0073] The hollow inner diameter of the proximal end of the hollow structure of the screw rotary joint fixing block (2) is smaller than the hollow inner diameter of the distal end, so that the screw rotary joint (4) and the screw rotary joint spring (3) are located inside the screw rotary joint fixing block (2).

[0074] Furthermore, in order to facilitate the installation of the screw rotary joint fixing block (2) and the adapter connector (1), an opening groove (203) is provided on the outer surface of the screw rotary joint fixing block (2) in the embodiment of the utility model, and a guide protrusion (104) is provided on the inner wall surface of the adapter connector (1). During installation, the opening groove (203) and the guide protrusion (104) are aligned, so that the adapter connector (1) can be quickly inserted into the screw rotary joint fixing block (2).

[0075] The handle host connector (19) of one embodiment of the utility model comprises an adapter bracket (7), an adapter fixing block rotating frame (9), an adapter fixing block (10), a handle housing connector (12), and an adapter fixing block rotating frame push button (13);

[0076] The adapter fixing block rotating frame (9) is sleeved on the far end of the adapter bracket (7). Specifically, the adapter fixing block rotating frame (9) is sleeved on the adapter fixing block rotating frame installation position (706) of the adapter bracket (7).

[0077] Furthermore, in order to facilitate the installation of the adapter connector (18) and the handle host connector (19), a bracket inner wall groove (701) is provided on the inner wall surface of the adapter bracket (7) in the embodiment of the utility model, and an outer wall positioning groove (102) is provided on the outer wall surface of the adapter connector (1). During installation, the outer wall positioning groove (102) and the bracket inner wall groove (701) are aligned.

[0078] The proximal protrusion (1001) of the adapter fixing block (10) is installed in the rotating frame slot (901) of the adapter fixing block rotating frame (9), and the distal protrusion (1002) of the adapter fixing block (10) passes through the fixing block distal protrusion installation hollow groove (702) of the adapter bracket (7) and is installed on the slot (105) of the adapter connector (1). Here, the slot (105) of the adapter connector (1) is a smooth track, which facilitates the distal protrusion (1002) of the adapter fixing block (10) to slide on the track, thereby better fixing the adapter.

[0079] Furthermore, a mounting guide groove (101) is provided on the side wall of the adapter connector (1) for the adapter fixing block (10) to slide; when the adapter connector (18) and the handle host connector (19) perform a locking action, the distal protrusion (1002) of the adapter fixing block (10) slides along the mounting guide groove (101) toward the distal end of the adapter connector (1) until it enters the card slot (105) of the adapter connector (1), and continues to slide along the track of the card slot (105) until the adapter fixing block 1 (0) moves to the adapter bracket (7 ) to a first preset position, completing the locking action of the adapter connector (18) and the handle host connector (19); when the adapter connector (18) and the handle host connector (19) perform an unlocking action, the adapter fixing block rotating frame (9) rotates to drive the adapter fixing block (10) to slide along the track of the card slot (105) until it slides to the installation guide groove (101), and continues to slide along the installation guide groove (101) until it slides to the second preset position, completing the unlocking action of the adapter connector (18) and the handle host connector (19).

[0080] Specifically, the adapter fixing block (10) is rotated to the opening position of the installation guide groove (101) of the adapter connector (1), and the adapter connector (18) moves outward under the elastic force of the elastic contact ball (17), and the adapter fixing block (10) is disengaged from the adapter connector (1), and the adapter and the handle host are unlocked.

[0081] After the unlocking action is completed, the adapter fixing block (10), the adapter fixing block rotating frame (9), and the adapter fixing block rotating frame push button (13) are restored to the first preset position under the action of the adapter fixing block rotating frame spring (8).

[0082] Here, the first preset position refers to a position where the adapter connector (18) and the handle host connector (19) can complete a locking action; the second preset position refers to a position where the adapter connector (18) and the handle host connector (19) can complete an unlocking action.

[0083] Furthermore, an adapter fixing block rotating frame push button (13) is installed on the outer surface of the side wall of the handle housing joint (12); the adapter fixing block rotating frame push button (13) is provided with a push button protrusion (1301), and the side wall of the adapter fixing block rotating frame (9) is provided with a bracket protrusion (902), and the push button protrusion (1301) and the bracket protrusion (902) are connected by clamping. When the adapter fixing block rotating frame push button (13) is pushed, the adapter fixing block rotating frame push button (13) touches the bracket protrusion (902) of the adapter fixing block rotating frame (9), causing the adapter fixing block rotating frame (9) to rotate, thereby driving the adapter fixing block (10) to slide along the clamping groove (105) of the adapter connector (1).

[0084] The handle host connector (19) of one embodiment of the utility model further comprises an adapter fixing block rotating frame spring (8), a first spring groove (704) is provided on the distal end surface of the adapter bracket (7), and a second spring groove (903) is provided on the inner side wall surface of the adapter fixing block rotating frame (9);

[0085] One end of the adapter fixed block rotating frame spring (8) abuts against the first spring groove (704), and the other end abuts against the second spring groove (903);

[0086] When the adapter fixing block rotating frame spring (8) undergoes elastic deformation, the adapter fixing block rotating frame (9) is caused to rotate on the adapter bracket (7).

[0087] The handle host connector (19) of one embodiment of the utility model further includes a handle housing connector (12) and an adapter signal connector (16);

[0088] The adapter signal connector (16) is installed in the adapter signal connector installation hole (708) of the adapter bracket (7).

[0089] Furthermore, the handle host connector (19) also includes an adapter rotary connector (14), an adapter rotary connector retaining spring (15), and an elastic contact ball (17);

[0090] The adapter rotary joint (14) is mounted in the adapter rotary joint mounting hole (705) of the adapter bracket (7);

[0091] The adapter rotary joint retaining spring (15) is installed at the retaining spring groove (707) on the upper surface of the adapter bracket (7); the adapter rotary joint retaining spring (15) clamps the end (1401) position of the adapter rotary joint (14) at the step (707) of the adapter bracket (7).

[0092] The elastic bumper (17) is located in the bumper installation groove (703) on the inner end surface of the adapter bracket (7).

[0093] The adapter screw rotating joint (4) and the adapter rotating joint (14) of the locking device designed in the utility model have a blind plugging function. The adapter rotating joint (14) passes through the center hole at the proximal end of the screw rotating joint fixing block (2) and is connected to the screw rotating joint (4). When installing the adapter rotating joint (14), if the adapter rotating joint (14) and the screw rotating joint (4) are not aligned, the adapter rotating joint (14) pushes the screw rotating joint 4 () to press the screw rotating joint spring (3) backward, so that the screw rotating joint spring (3) is compressed and elastically deformed, giving the screw rotating joint (4) and the adapter rotating joint (14) a certain space for making way for the screw rotating joint (4) and the adapter rotating joint (14). The adapter rotating joint (14) is rotated, and the adapter rotating joint (14) is aligned with the screw rotating joint (4), so that the screw rotating joint (4) is sleeved on the adapter rotating joint (14) under the elastic force of the screw rotating joint spring (3), so that the screw rotating joint (4) and the adapter rotating joint (14) are matched.

[0094] The following steps are used to lock the adapter connector (18) and the handle main unit connector (19):

[0095] First, the protrusion (1001) at the proximal end of the adapter fixing block (10) of the handle host connector (19) is installed in the rotating frame slot (901) of the adapter fixing block rotating frame (9), and the protrusion (1002) at the distal end of the adapter fixing block (10) passes through the hollow groove (702) of the distal protrusion of the fixing block of the adapter bracket (7); then, the protrusion (1002) at the distal end of the adapter fixing block (10) slides along the installation guide groove (101) toward the distal end of the adapter connector (1) until it enters the slot (1001) of the adapter connector (1). 05) track, and continue to slide along the card slot (105) track until the adapter fixing block (10) slides to the first preset position, completing the locking action of the adapter connector (18) and the handle host connector (19). During the locking action, the adapter screw rotary connector (4) and the adapter rotary connector (14) are matched, and the adapter contact connector (5) and the adapter signal connector (16) are connected together. At this time, after the locking is completed, the adapter connector (18) and the handle host connector (19) cannot rotate.

[0096] The unlocking operation of the adapter connector (18) and the handle main unit connector (19) is as follows:

[0097] The adapter fixing block rotating frame push button (13) is pushed, and the adapter fixing block rotating frame push button (13) drives the adapter fixing block rotating frame (9) and the adapter fixing block (10) to rotate together. The adapter bracket (7) rotates and drives the adapter fixing block (10) to slide along the track of the card slot (105) until it slides to the installation guide slot (101), and continues to slide along the installation guide slot (101) until it slides to the second preset position, thereby completing the unlocking action of the adapter connector (18) and the handle host connector (19).

[0098] Specifically, until it slides to the opening position of the track of the installation guide groove (101), and then slides along the installation guide groove (101), the adapter connector (18) moves outward under the elastic force of the elastic contact ball (17), and the adapter fixing block (10) is disengaged from the adapter connector (1), completing the unlocking action of the adapter connector (18) and the handle host connector (19).

[0099] Here, the first preset position refers to a position where the adapter connector (18) and the handle host connector (19) can complete a locking action; the second preset position refers to a position where the adapter connector (18) and the handle host connector (19) can complete an unlocking action.

[0100] The embodiment of the utility model further discloses a stapler, comprising any one of the locking devices described above.

[0101] After adopting such a design, the utility model has at least the following advantages:

[0102] (1) The locking device designed in the utility model has the function of convenient and quick installation of the adapter and automatic locking after installation. When the adapter is disassembled and replaced, the adapter will automatically pop out a certain distance by pushing the release button, which is convenient for disassembly of the adapter.

[0103] (2) The automatic locking device of the utility model is designed to cooperate with the shaft hole, so that the adapter and the handle host can cooperate more precisely, and the transmission efficiency of the product is higher when in use.

[0104] (3) The adapter screw rotary joint of the automatic locking device designed in the utility model and the adapter rotary joint of the handle main unit have a blind insertion function, and there is no need to align the adapter screw rotary joint with the handle main unit transmission shaft during installation.

[0105] (4) The electronic signal transmission method of the automatic locking device designed in the utility model uses elastic contacts. After the adapter is installed, the contacts are compressed a certain distance. When the device vibrates, the signal will not be interrupted.

[0106] (5) The utility model has a simple structure, good effect, low cost and easy process implementation.

[0107] After considering the utility model disclosed in the specification and examples, those skilled in the art will easily think of other embodiments of the utility model. This application is intended to cover any modification, use or adaptation of the utility model, which follows the general principles of the utility model and includes common knowledge or customary technical means in the art that are not disclosed in the utility model. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the utility model are indicated by the following claims.

[0108] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A locking device, one end of which is connected to the adapter and the other end is connected to the handle host. It is characterized in that It comprises an adapter connector (18) and a handle host connector (19), wherein the adapter connector (18) and the handle host connector (19) are movably connected to fix the adapter to the handle host; The adapter joint (18) comprises an adapter connector (1), a screw rotary joint fixing block (2), a screw rotary joint spring (3), a screw rotary joint (4), an adapter contact joint (5), and a rotary joint fixing block pin (6); The outer diameters of the screw rod rotary joint spring (3) and the screw rod rotary joint (4) are the same; The screw rod rotary joint fixing block (2) is a hollow structure, the inner diameter of the distal end of the hollow structure is larger than the outer diameter of the screw rod rotary joint (4), and the screw rod rotary joint (4) and the screw rod rotary joint spring (3) are sequentially sleeved inside the screw rod rotary joint fixing block (2); The screw rod rotary joint fixing block (2) is sleeved in the adapter connector (1); A fixing groove (201) is provided at the proximal end of the screw rod rotary joint fixing block (2) for fixing the adapter contact joint (5); The screw rod rotary joint fixing block (2) is fixed to the adapter connector (1) via the rotary joint fixing block pin (6).

2. A locking device as claimed in claim 1, It is characterized in that The hollow inner diameter of the proximal end of the hollow structure of the screw rotary joint fixing block (2) is smaller than the hollow inner diameter of the distal end.

3. A locking device as claimed in claim 2, It is characterized in that An open groove (203) is provided on the outer surface of the screw rod rotary joint fixing block (2), and a guide protrusion (104) is provided on the inner wall surface of the adapter connector (1). Through the cooperation between the open groove (203) and the guide protrusion (104), the adapter connector (1) is fixedly sleeved inside the screw rod rotary joint fixing block (2).

4. A locking device as claimed in claim 3, It is characterized in that The handle host connector (19) comprises an adapter bracket (7), an adapter fixing block rotating frame (9), an adapter fixing block (10), a handle housing connector (12), and an adapter fixing block rotating frame push button (13); The distal end of the adapter bracket (7) is sleeved on the adapter fixing block rotating frame (9); The side wall of the adapter connector (1) is provided with a mounting guide groove (101) for the adapter fixing block (10) to slide. The proximal protrusion (1001) of the adapter fixing block (10) is installed in the rotating frame slot (901) of the adapter fixing block rotating frame (9), and the distal protrusion (1002) of the adapter fixing block (10) is installed in the fixing block distal protrusion installation hollow groove (702) of the adapter bracket (7); The adapter fixing block rotating frame push button (13) is installed on the outer surface of the side wall of the handle housing joint (12); The adapter fixing block rotating frame push button (13) is pushed, and the adapter fixing block rotating frame push button (13) triggers the adapter fixing block rotating frame (9) to rotate, thereby driving the adapter fixing block (10) to rotate along the card slot (105) of the adapter connector (1) and rotate to the installation guide slot (101), so that the handle host connector (19) is separated from the adapter connector (18).

5. A locking device as claimed in claim 4, It is characterized in that The handle host connector (19) also includes an adapter fixing block rotating frame spring (8), a first spring groove (704) is provided on the distal end surface of the adapter bracket (7), and a second spring groove (903) is provided on the inner side wall surface of the adapter fixing block rotating frame (9); One end of the adapter fixing block rotating frame spring (8) abuts against the first spring slot (704), and the other end abuts against the second spring slot (903); When the adapter fixing block rotating frame spring (8) undergoes elastic deformation, the adapter fixing block rotating frame (9) is caused to rotate on the adapter bracket (7).

6. A locking device as claimed in claim 4, It is characterized in that The handle host connector (19) also includes a handle housing connector (12) and an adapter signal connector (16); The adapter signal connector (16) is mounted on the adapter signal connector mounting hole (708) of the adapter bracket (7); The adapter fixing block rotating frame push button (13) is mounted on the outer surface of the side wall of the handle housing joint (12).

7. A locking device as claimed in claim 6, It is characterized in that The handle host connector (19) also includes an adapter rotary connector (14), an adapter rotary connector retaining spring (15), and an elastic contact ball (17); The adapter rotary joint (14) is installed in the adapter rotary joint installation hole (705) of the adapter bracket (7); The adapter rotary joint retaining spring (15) clamps the adapter rotary joint (14) at the step (707) of the adapter bracket (7); The elastic bumper (17) is located in a bumper installation groove (703) on the inner end surface of the adapter bracket (7).

8. A locking device as claimed in claim 7, It is characterized in that The adapter rotary joint (14) passes through the center hole at the proximal end of the screw rotary joint fixing block (2) and is sleeved with the screw rotary joint (4). When the adapter rotary joint (14) and the screw rotary joint (4) are not aligned, the adapter rotary joint (14) will push the screw rotary joint (4) to press the screw rotary joint spring (3) backward. When the adapter rotary joint (14) is rotated, the adapter rotary joint (14) will be aligned with the screw rotary joint (4), so that the screw rotary joint (4) is sleeved on the adapter rotary joint (14) under the elastic force of the screw rotary joint spring (3), so that the screw rotary joint (4) and the adapter rotary joint (14) are matched.

9. A locking device as claimed in claim 8, It is characterized in that When the adapter connector (18) and the handle host connector (19) perform a locking action, the distal protrusion (1002) of the adapter fixing block (10) slides along the installation guide groove (101) toward the distal end of the adapter connector (1) until it enters the slot (105) of the adapter connector (1), and continues to slide along the track of the slot (105) until the adapter fixing block (10) moves to the first preset position of the adapter bracket (7), thereby completing the locking action of the adapter connector (18) and the handle host connector (19).

10. A locking device as claimed in claim 8, It is characterized in that When the adapter connector (18) and the handle host connector (19) perform an unlocking action, the adapter fixing block rotating frame push button (13) is pushed, and the adapter fixing block rotating frame push button (13) drives the adapter fixing block rotating frame (9), and the adapter fixing block rotating frame (9) rotates to drive the adapter fixing block (10) to slide along the track of the slot (105) until it slides to the installation guide slot (101), and continues to slide along the installation guide slot (101) until it slides to a second preset position, thereby completing the unlocking action of the adapter connector (18) and the handle host connector (19).

11. A stapler, It is characterized in that The invention comprises the locking device described in any one of claims 1 to 10.

Images