Rotary conductive structure of electric anastomat and anastomat

Abstract

The utility model provides a kind of rotation conductive structure and anastomat of electric anastomat, rotation conductive structure includes rotating assembly, and rotating assembly is provided with contact component;Slip ring assembly, slip ring assembly includes conducting ring and insulating ring, conducting ring and insulating ring are alternately set along the axial direction of slip ring assembly, contact component is rotationally arranged outside conducting ring relative to conducting ring around the axis of conducting ring, the outer diameter of conducting ring is less than the outer diameter of insulating ring, and output wire connected with conducting ring is arranged in the slip ring assembly;Main support, slip ring assembly is sleeved on main support.By setting conducting ring and insulating ring, input wire rotates along with contact component together along the outer wall of conducting ring, while slip ring assembly is immobile, and output wire passes through the inner wall of slip ring assembly, so that the rotation angle of nail box is not limited, as input wire does not wind in the process of rotation;Meanwhile, since the outer diameter of conducting ring is less than the outer diameter of insulating ring, contact component is always kept connected with corresponding conducting ring when rotating, and does not contact with remaining conducting ring to cause failure.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a rotating conductive structure and anastomosis device for an electric stapler. Background Technology

[0002] Compared with the results of cutting and suturing tissue using a traditional manual laparoscopic stapler, the anastomosis produced by an electric laparoscopic stapler is smoother and neater, enabling patients to recover faster and better after surgery. Electric staplers have become an industry trend.

[0003] The electric stapler consists of a handle and a staple cartridge, connected by a barrel. A recognition component is located on the barrel near the staple cartridge, used to identify the cartridge's model and usage history. The electrical signal from this component is transmitted to the main control board inside the handle via an input wire. When the electric stapler is operating, the staple cartridge and barrel rotate. This rotation causes the input wire of the recognition component to rotate as well, potentially leading to tangling or breakage of the wire. Summary of the Invention

[0004] This utility model provides a rotating conductive structure and a stapler for an electric stapler, in order to solve the technical problem of the input wire entanglement when the staple cartridge is rotated.

[0005] This utility model provides a rotating conductive structure for an electric stapler, comprising: A rotating assembly, wherein a contact member is provided within the rotating assembly; A slip ring assembly includes a conductive ring and an insulating ring, which are alternately arranged along the axial direction of the slip ring assembly. A contact member is rotatably disposed outside the conductive ring relative to the conductive ring in the circumferential direction. The outer diameter of the conductive ring is smaller than the outer diameter of the insulating ring. An output wire is connected to the conductive ring and extends along the inner wall of the slip ring assembly. The main support, on which the slip ring assembly is sleeved.

[0006] In one embodiment of the present invention, the rotating conductive structure further includes a first bearing and a second bearing. The first bearing, the slip ring assembly, and the second bearing are sequentially sleeved on the main support along the axis of the main support. The outer wall of the main support is provided with a wire groove for the output wire to pass through.

[0007] In one embodiment of this utility model, the insulating ring near the first bearing is a limiting insulating ring, the limiting insulating ring is provided with a limiting part, the main bracket is provided with a positioning part, and the positioning part cooperates with the limiting part to axially limit the limiting insulating ring.

[0008] In one embodiment of the present invention, the limiting part is a limiting hole provided on the limiting insulating ring, and the positioning part is a positioning protrusion provided on the main bracket.

[0009] In one embodiment of the present invention, the rotating assembly further includes a connecting plate, the contact member is mounted on the connecting plate, the contact member is a brush, the brush is in elastic contact with the conductive ring, and the outer wall of each conductive ring is in contact with at least two brushes.

[0010] In one embodiment of the present invention, along the radial direction of the slip ring assembly, the outer wall of the insulating ring is higher than the outer wall of the conductive ring, and the height by which the outer wall of the insulating ring is higher than the outer wall of the conductive ring is greater than or equal to the thickness of the brush.

[0011] In one embodiment of the present invention, the rotating assembly further includes a first housing, which is sleeved on the slip ring assembly, and the first housing is provided with a through hole at the contact member for the contact member to pass through.

[0012] In one embodiment of the present invention, the first housing includes a detachably connected upper cover and a lower cover of a sliding ring. The through hole is provided on the upper cover of the sliding ring. The upper cover of the sliding ring is provided with a first positioning post and a first positioning hole. The lower cover of the sliding ring is provided with a second positioning post and a second positioning hole. The first positioning post cooperates with the second positioning hole, and the second positioning post cooperates with the first positioning hole.

[0013] In one embodiment of this utility model, the thickness of the insulating ring along the axial direction of the insulating ring is D, where 0.5mm≤D≤5mm.

[0014] On the other hand, this utility model also provides a stapler, including a stapler magazine, a gun barrel, a handle, and a rotating conductive structure of the electric stapler described above. The handle includes a handle shell, the main support is installed in the handle shell, and the front end of the main support extends out of the handle shell and is connected to the rear end of the gun barrel through a rotating shell. The rotating conductive structure is installed in the rotating shell.

[0015] The beneficial effects of this utility model are as follows: The rotating conductive structure and electric stapler proposed in this utility model, by setting a conductive ring and an insulating ring, allow the input wire to rotate circumferentially along the outer wall of the conductive ring together with the contact member, while the slip ring assembly remains stationary. The output wire passes through the inner wall of the slip ring assembly. During the rotation of the rotating assembly, the input wire will not become entangled, so the rotation angle of the rotating assembly is not limited. At the same time, since the outer diameter of the conductive ring is smaller than the outer diameter of the insulating ring, the contact member always remains connected to the corresponding conductive ring during rotation, and will not come into contact with other conductive rings, thus preventing malfunctions. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0017] In the attached diagram: Figure 1 A schematic diagram of the structure of an electric stapler provided in an embodiment of this utility model. Figure 1 ; Figure 2 for Figure 1 Partial explosion Figure 1 ; Figure 3 Figure 2 Enlarged view of A in the middle; Figure 4 for Figure 1 Partial cross-sectional diagram; Figure 5 for Figure 1 Partial cross-sectional diagram; Figure 6 A partial structural diagram of the rotating conductive structure; Figure 7 for Figure 4 Enlarged view of B in the middle; Figure 8 This is a cross-sectional view of the rotating conductive structure; Figure 9 A schematic diagram of the main support structure; Figure 10 This is a schematic diagram of the rotating component. Figure 11 This is a schematic diagram of the conductive ring structure; Figure 12 This is a schematic diagram of the first shell structure; Figure 13 This is a schematic diagram of the limiting insulating ring.

[0018] The attached figures are labeled as follows: Handle 100, main bracket 101, wire channel 1011, handle housing 102, main control board 103, rotating head 200, conductive ring 201, insulating ring 202, first bearing 203, second bearing 204, limiting insulating ring 205, limiting hole 206, positioning protrusion 207, connecting plate 208, brush 209, slip ring upper cover 210, slip ring lower cover 211, through hole 212, first positioning post 213, second positioning post 214, second positioning hole 215, rotating housing 216. Input wire 217, output wire 218, rotating assembly 219, slip ring assembly 220, first housing 221, contact member 222, outer wall of main support 223, outer wall of conductive ring 224, inner wall of slip ring assembly 225, limiting part 226, positioning part 227, outer wall of insulating ring 228, gun barrel 300, sleeve 301, firing lever 302, gun barrel alignment arrow 303, nail magazine 400, nail magazine mounting alignment line 404, nail magazine mounting alignment arrow 405, rack 500. Detailed Implementation

[0019] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0020] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0021] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present invention.

[0022] This utility model provides an electric stapler, such as Figure 1As shown, the electric stapler includes a staple cartridge 400, a barrel 300, a rotating head 200, and a handle 100. The staple cartridge 400 is mounted on the distal end of the barrel 300 and is detachably connected to the barrel 300. The rotating head 200 is rotatably connected to the handle 100, and the rotating head 200 drives the barrel 300 and the staple cartridge 400 to rotate, thereby changing the angle of the staple cartridge 400. The staple cartridge 400 includes a staple chamber, a staple anchor, a cutting blade, and an identification chip. The identification chip on the staple cartridge 400 records information such as the model number and number of uses of the staple cartridge 400.

[0023] like Figure 2 As shown, the gun barrel 300 includes a sleeve 301 and a firing lever 302 located within the sleeve 301. The firing lever 302 drives the nail magazine 400 to move. A probe assembly is provided on the side of the gun barrel 300 that mates with the nail magazine 400. After the nail magazine 400 is inserted axially along the gun barrel 300, the identification chip on the nail magazine 400 contacts the probe assembly and is connected to the rotating head 300 through an input wire connected to the probe assembly.

[0024] Please see Figure 3 The rotating head 200 includes a rotating shell 216 and a rotating conductive structure. The rotating conductive structure includes a rotating component 219 and a slip ring assembly 220. The rotating component 219 can rotate axially relative to the slip ring assembly 220. During the rotation of the rotating component 219, the brush 209 of the rotating component 219 is always in contact with the conductive ring 201 of the slip ring assembly 220 to transmit signals. The identification chip on the nail cartridge 400 is connected to the rotating component 219 through an input wire 217. The slip ring assembly 220 transmits signals to the main control board 103 inside the handle 100 through an output wire 218. The main control board 103 can read the information from the identification chip on the nail cartridge 400.

[0025] Please see Figure 2 and Figure 3 The sleeve 301 is fixedly connected to the rotating shell 216. A first shell 221 is provided outside the rotating assembly 219. The rotating shell 216 is connected to the first shell 221 and rotates together with the rotating assembly 219. When the rotating shell 216 rotates, the sleeve 301 rotates together with the rotating shell 216.

[0026] like Figure 4As shown, the staple cartridge 400 can be equipped with a staple cartridge installation alignment line 404 and a staple cartridge alignment arrow 405, and the gun barrel 300 can be equipped with a gun barrel alignment arrow 303. The staple cartridge alignment arrow 405 and the gun barrel alignment arrow 303 are used to indicate the movement direction of the staple cartridge 400 and the gun barrel 300 during installation, respectively. After the staple cartridge installation alignment line 404 and the gun barrel alignment arrow 303 are aligned, the staple cartridge 400 is inserted into the gun barrel 300. Of course, the alignment marks used for alignment are not limited to lines and arrows, and can also be other forms of marks. This is only an example and should not be regarded as a limitation on the alignment marks. When using an electric stapler, the staple cartridge 400 needs to be connected to the gun barrel 300. The connection process is as follows: first, align the staple cartridge installation alignment line 404 with the gun barrel alignment arrow 303, then insert the staple cartridge 400 into the gun barrel 300 along the axis. After it is fully inserted, rotate the staple cartridge 400. After rotating it to the bottom, the assembly automatically locks the staple cartridge 400.

[0027] Please see Figure 2 and Figure 3 The handle housing 100 also houses the main support 101, power unit, geared motor, adapter gear, rack 500, main control board 103, forward button, and reverse button. The front end of the main support 101 is connected to the rear end of the barrel 300 via a rotating head 200. One end of the firing lever 302 is connected to the nail magazine 400, and the other end is connected to the rack 500. The power unit provides power to the geared motor, and the adapter gear, connected to the output of the geared motor, transmits power to the rack 500, causing it to move forward or backward.

[0028] Please see Figure 2 and Figure 3 The rotating conductive structure is sleeved on the main support 101, allowing the rotating head 200 to rotate. When the nail magazine 400 needs to be rotated, hold the handle 100 with one hand and rotate the rotating shell 216 with the other. The rotating shell 216 drives the gun barrel 300 to rotate, thereby rotating the nail magazine 400. During the rotation of the rotating shell 216, the brush 209 rotates relative to the conductive ring 201. The brush 209 is always in contact with the conductive ring 201 during the rotation. The input wire 217 rotates together with the gun barrel 300 and the brush 209, while the slip ring assembly 220 does not rotate.

[0029] A sensing boss is provided on the rack 500, and a photoelectric switch is installed on the main bracket 101. In the initial position, the rack 500 is located outside the sliding hole of the main bracket 101, and the sensing boss on the rack 500 is exactly located in the notch of the photoelectric switch.

[0030] Please see Figures 1-4The push-button switch is triggered by the forward or backward button, sending a signal to the main control board 103. The main control board 103 then sends a signal to control the power unit. The power output from the power unit is transmitted to the geared motor, which drives the rack 500 to move to the left via a connecting gear. The rack 500 pushes the firing lever 302 to move to the left, and the connecting gear then drives the rack 500 to move forward. The sensing protrusion on the rack 500 moves away from the photoelectric switch. The firing lever 302 pushes the cutting blade of the staple cartridge 400 to move to the left. The leftward movement of the cutting blade reduces the angle between the staple chamber and the anchor seat of the staple cartridge 400, thus achieving the closing function. As the cutting blade continues to move forward, it pushes the anastomotic staples in the staple chamber to press against the anchor seat, achieving tissue anastomosis. At the same time, the cutting blade breaks the anastomotic tissue along the middle.

[0031] After the staple cartridge 400 completes tissue anastomosis, pressing the back button triggers a back signal to the main control board 103. The power output from the power unit drives the geared motor to rotate in the opposite direction. The geared motor drives the rack 500 to move to the right via the adapter gear. The rack 500 then drives the firing lever 302 to move to the right until the sensing boss returns to the notch of the photoelectric switch. At this point, the photoelectric switch transmits a signal to the main control board 103, which then controls the motor to stop rotating, thus keeping the rack 500 in its initial position. Once the main control board 103 receives the next firing signal, the rack 500 will move forward again, and this process repeats.

[0032] Please see Figures 5 to 13 As shown, this utility model provides a rotating conductive structure for an electric anastomosis device, including a rotating assembly 219, a slip ring assembly 220, and a main support 101. A contact member 222 is provided inside the rotating assembly 219. The rotating assembly 219 can rotate circumferentially relative to the slip ring assembly 220 and always maintains electrical contact with the slip ring assembly 220. The slip ring assembly 220 is sleeved on the main support 101.

[0033] The slip ring assembly 220 includes a conductive ring 201 and an insulating ring 202, which are alternately arranged along the axial direction of the slip ring assembly 220. A contact member 222 is rotatably disposed outside the conductive ring 201 relative to its circumference. An output wire 218 is connected to the conductive ring 201, passing through the inner wall 225 of the slip ring assembly, thus preventing the output wire 218 from tangling with the rotating component 219, which is connected to an input wire 217. The contact member 222 contacts and connects to the outer wall 224 of the conductive ring as it rotates along the outer wall 224.

[0034] The slip ring assembly 220 includes at least two conductive rings 201. Each conductive ring 201 has an insulating ring 202 on both sides. Each conductive ring 201 is connected to an output wire 218, and there are also two corresponding input wires 217. In this way, the two input wires 217, the two contact members 222, the two conductive rings 201, and the two output wires 218 can form a complete circuit loop.

[0035] In some embodiments, since it is necessary to identify the model and usage count of the nail cartridge 400, two signals need to be input. Therefore, three conductive rings 201 are set up, one of which serves as a common circuit. That is, the identification of the model of the nail cartridge 400 and the reading and writing of the usage count of the nail cartridge 400 can be realized through the three conductive rings 201 and the four insulating rings 202.

[0036] Both the conductive ring 201 and the insulating ring 202 are fitted onto the main support 101. The conductive ring 201 and the insulating ring 202 have the same inner diameter, but the outer diameter of the conductive ring 201 is smaller than that of the insulating ring 202. After the conductive ring 201 and the insulating ring 202 are fitted onto the main support 101, the insulating ring 202 protrudes slightly along the radial direction of the conductive ring 201. Figure 7 As shown, the outer wall 224 of the conductive ring and the side walls of the two adjacent insulating rings 202 form a U-shaped groove for sliding of the contact member 222.

[0037] When the contact member 222 contacts the conductive ring 201, both sides of the contact member 222 contact the sides of the insulating ring 202, preventing contact with the adjacent conductive ring 201 and thus avoiding a short circuit. The width of the contact member 222 matches the width of the conductive ring 201 along the axial direction of the slip ring assembly 220. When the contact member 222 makes contact with the surface of the conductive ring 201, its two side edges are tightly fitted with the sidewalls of the adjacent insulating ring 202. The protruding design of the insulating ring 202 blocks the conductive path between the contact member 222 and the adjacent conductive ring 201. This structural design mechanically eliminates the risk of cross-ring short circuits caused by the offset or vibration of the contact member 222, ensuring that the circuit always maintains an independent conductive state and providing reliable electrical safety for the stable operation of the equipment.

[0038] The conductive ring 201 is generally made of a copper ring, and the insulating ring 202 is made of high-temperature resistant polytetrafluoroethylene or ceramic material. Along the axial direction of the insulating ring 202, the thickness D of the insulating ring 202 is 0.5mm-5mm, so as to ensure that there is a safe insulation gap between the conductive ring 201 and the adjacent conductive ring 201, and at the same time reduce the axial length of the slip ring assembly 220 on the premise of not affecting the conductive performance, thus shortening the overall size of the electric stapler. Wherein 0.5mm≤D<0.7mm, or equal to 0.7mm, or 0.7mm<D≤5mm. For example, D is 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.9mm, 1mm, 1.5mm, 2mm, 3mm, 4mm, 5mm, etc.

[0039] To facilitate the output wire 218 to pass through, a wire groove 1011 is provided on the outer wall 223 of the main bracket. One end of the output wire 218 is connected to the inner wall of the conductive ring 201, and the other end extends backward along the wire groove 1011 and passes through.

[0040] In some embodiments, in order to enable the rotating assembly 219 to rotate smoothly relative to the slip ring assembly 220, the rotating conductive structure further includes a first bearing 203 and a second bearing 204. The first bearing 203, the insulating ring 202, the conductive ring 201, the insulating ring 202 and the second bearing 204 are sequentially sleeved on the main bracket 101 along the axis of the main bracket 101. The inner rings of the first bearing 203 and the second bearing 204 are in contact with the main bracket 101, for example, an interference fit can be adopted, so that the first bearing 203 and the second bearing 204 will not have radial runout, and the outer rings of the first bearing 203 and the second bearing 204 rotate together with the rotating assembly 219.

[0041] To facilitate axial limiting of the slip ring assembly 220, a first step is provided on the main bracket 101. The main bracket 101 includes a small-diameter section and a large-diameter section. The portion of the main bracket 101 close to the front staple cartridge 400 is the small-diameter section, the large-diameter section is located between the small-diameter section and the first step, and a second step is provided at the connection between the small-diameter section and the large-diameter section. The second bearing 204 is close to the rear end of the main bracket 101, and the second bearing 204 is axially limited by the first step. The small-diameter section facilitates the passage of the second bearing 204, the insulating ring 202 and the conductive ring 201, and the first bearing 203 is in interference fit with the small-diameter section.

[0042] In some embodiments, to facilitate axial positioning of the first bearing 203, an insulating ring near the first bearing 203 is a limiting insulating ring 205. A limiting portion 226 is provided on the limiting insulating ring 205, and the limiting insulating ring 205 is axially positioned via a second step. A positioning portion 227 is provided on the main support 101, and the positioning portion 227 cooperates with the limiting portion 226 to axially limit the limiting insulating ring 205, preventing it from moving left or right. For example, the limiting part 226 can be a limiting hole 206 provided on the limiting insulating ring 205, and the positioning part 227 can be a positioning protrusion 207 provided on the main support 101. After the second bearing 204, the insulating ring 202, and the conductive ring 201 are all fitted onto the main support 101, the second bearing 204 is limited by the first step. Then, the limiting insulating ring 205 is fitted onto the main support 101, and finally the first bearing 203 is installed. Thus, the first bearing 203, the limiting insulating ring 205, the conductive ring 201, the insulating ring 202, and the second bearing 204 cannot move axially. Of course, a hole can also be provided on the main support 101, and a protrusion can be provided on the inner wall of the limiting insulating ring 205.

[0043] To facilitate the setting of a limiting hole 206 on the limiting insulating ring 205, the limiting insulating ring 205 includes a first segment and a second segment. The cross-section of the limiting insulating ring 205 is T-shaped. The outer diameter of the first segment is smaller than the outer diameter of the second segment, and the outer diameter of the second segment is the same as the outer diameter of the other insulating rings 202. The first segment is located inside the inner ring of the first bearing 203, and the second segment is located between the first bearing 203 and the conductive ring 201. The limiting hole 206 is provided on the first segment, and the inner ring of the first bearing 203 is interference-fitted with the first segment.

[0044] In some embodiments, the rotating assembly 219 further includes a connecting plate 208, and a contact member 222 is mounted on the connecting plate 208. The connecting plate 208 may be a PCB board. The contact member 222 makes elastic contact with the conductive ring 201. For example, the contact member 222 is a brush 209, which is soldered to the connecting plate 208. At least two brushes 209 are provided on the outer wall 224 of each conductive ring, and the brushes 209 make elastic contact with the conductive ring 201.

[0045] Along the radial direction of the slip ring assembly 220, the outer wall 228 of the insulating ring is higher than the outer wall 224 of the conductive ring, and the height of the portion of the outer wall 228 of the insulating ring that is higher than the outer wall 224 of the conductive ring is greater than or equal to the thickness of the brush 209. The thickness of the brush 209 is the thickness along the radial direction of the conductive ring 201, that is, the thickness of the groove along the radial direction of the insulating ring 202 is slightly larger than the thickness of the brush 209, basically at least 1 mm larger, so that the brush 209 can always remain in the groove when sliding in the groove.

[0046] In some embodiments, the brush 209 is configured in an arc shape, which can increase the contact surface between the brush 209 and the conductive ring 201. For example... Figure 8 As shown, the brush 209 can also be linear. The brush 209 has a certain elasticity. The distance between the two brushes 209 is less than the diameter of the conductive ring 201. When the brush 209 contacts the conductive ring 201, the two brushes 209 are spread apart, thus ensuring that the brush 209 and the conductive ring 201 are always in contact.

[0047] In some embodiments, a first housing 221 is provided outside the slip ring assembly 220. For ease of installation, the first housing 221 includes a detachably connected upper slip ring cover 210 and a lower slip ring cover 211. A groove can be provided on the upper slip ring cover 210 to facilitate the installation of a connecting plate 208, which is bolted to the upper slip ring cover 210. The upper slip ring cover 210 has a through hole 212 corresponding to the contact member 222 through which the power brush 209 passes. After passing through the through hole 212, the brush 209 contacts the conductive ring 201.

[0048] After installing the conductive ring 201, insulating ring 202, first bearing 203, and second bearing 204, the upper cover 210 and lower cover 211 of the slip ring are then snapped in from the top and bottom. To facilitate the connection between the upper cover 210 and the lower cover 211, the upper cover 210 is provided with a first positioning post 213 and a first positioning hole, and the lower cover 211 is provided with a second positioning post 214 and a second positioning hole 215. The first positioning post 213 engages with the second positioning hole 215, and the second positioning post 214 engages with the first positioning hole. Figure 12 As shown, there are two first positioning posts 213 and two first positioning holes on the upper cover 210 of the slip ring. In order to make the connection more secure, the two first positioning posts 213 are respectively located on the diagonal of the upper cover 210 of the slip ring, and the two first positioning holes are also respectively located on the diagonal of the upper cover 210 of the slip ring. Similarly, the two second positioning posts 214 and the two second positioning holes 215 are also respectively located on the diagonal of the lower cover 211 of the slip ring.

[0049] In some embodiments, the contact member 222 may also be a contact block, which is connected to the connecting plate 208 by an elastic element, which may be a spring. The contact block presses against the conductor ring 201, and the spring ensures that the contact block is always in contact with the outer wall 224 of the conductive ring. A rotating conductive structure is installed inside the rotating shell 216, and the rotating shell 216 and the rotating conductive structure together form the rotating head 200.

[0050] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this invention.

Claims

1. A rotating conductive structure for an electric stapler, characterized in that, include: A rotating assembly, wherein a contact member is provided within the rotating assembly; A slip ring assembly includes a conductive ring and an insulating ring, which are alternately arranged along the axial direction of the slip ring assembly. A contact member is rotatably disposed outside the conductive ring relative to the conductive ring in the circumferential direction. The outer diameter of the conductive ring is smaller than the outer diameter of the insulating ring. An output wire is connected to the conductive ring and passes through the slip ring assembly. The main support, on which the slip ring assembly is sleeved.

2. The rotating conductive structure of the electric stapler according to claim 1, characterized in that: The rotating conductive structure further includes a first bearing and a second bearing. The first bearing, the slip ring assembly, and the second bearing are sequentially sleeved on the main support along the axis of the main support. The outer wall of the main support is provided with a wire groove for the output wire to pass through.

3. The rotating conductive structure of the electric stapler according to claim 2, characterized in that: The insulating ring near the first bearing is a limiting insulating ring, which is provided with a limiting part. The main bracket is provided with a positioning part, and the positioning part cooperates with the limiting part to axially limit the limiting insulating ring.

4. The rotating conductive structure of the electric stapler according to claim 3, characterized in that: The limiting part is a limiting hole provided on the limiting insulating ring, and the positioning part is a positioning protrusion provided on the main bracket.

5. The rotating conductive structure of the electric stapler according to any one of claims 1-4, characterized in that: The rotating assembly further includes a connecting plate, and the contact member is mounted on the connecting plate. The contact member is a brush, which is in elastic contact with the conductive ring, and the outer wall of each conductive ring is in contact with at least two of the brushes.

6. The rotating conductive structure of the electric stapler according to claim 5, characterized in that: Along the radial direction of the slip ring assembly, the outer wall of the insulating ring is higher than the outer wall of the conductive ring, and the height by which the outer wall of the insulating ring is higher than the outer wall of the conductive ring is greater than or equal to the thickness of the brush.

7. The rotating conductive structure of the electric stapler according to claim 5, characterized in that: The rotating assembly further includes a first housing, which is sleeved on the slip ring assembly, and the first housing has a through hole at the contact member for the contact member to pass through.

8. The rotating conductive structure of the electric stapler according to claim 7, characterized in that: The first housing includes a detachably connected upper cover and a lower cover of a slip ring. The through hole is provided on the upper cover of the slip ring. The upper cover of the slip ring is provided with a first positioning post and a first positioning hole. The lower cover of the slip ring is provided with a second positioning post and a second positioning hole. The first positioning post cooperates with the second positioning hole, and the second positioning post cooperates with the first positioning hole.

9. The rotating conductive structure of the electric stapler according to claim 1, characterized in that: The thickness of the insulating ring along its axial direction is D, where 0.5mm ≤ D ≤ 5mm.

10. An electric stapler, characterized in that: The device includes a stapler magazine, a gun barrel, a handle, and a rotating conductive structure for the electric stapler according to any one of claims 1-9. The handle includes a handle housing, a main support is installed inside the handle housing, and the front end of the main support extends out of the handle housing and is connected to the rear end of the gun barrel through a rotating housing. The rotating conductive structure is installed inside the rotating housing.

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