Can opener

Abstract

The utility model provides a can opener which comprises an output gear arranged on a rotating shaft in a sleeving mode. The guide rail assembly is fixed on the output gear, and a spiral track with a first limiting part and a second limiting part is formed on the guide rail assembly; the shaft pin is arranged on the spiral track and is connected with the rotating shaft; the driving mechanism is used for driving the output gear to rotate in the first direction or the second direction, when the output gear rotates in the first direction, the spiral track of the guide rail assembly pushes the shaft pin to drive the rotating shaft to move in the third direction, and when the spiral track abuts against the first limiting part, the shaft pin and the rotating shaft are driven to rotate synchronously; when the output gear rotates in the second direction, the spiral track pushes the shaft pin to drive the rotating shaft to move in the fourth direction, and when the spiral track abuts against the second limiting part, the shaft pin and the rotating shaft are driven to rotate synchronously. According to the can opener, the shaft pin is matched with the spiral track on the guide rail assembly, the roller can stretch out and draw back by means of rotation of the output gear, the can can be clamped or released, the structure is simple, and operation is convenient and fast.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of can openers, and particularly relates to a can opener capable of automatically clamping and releasing a can. BACKGROUND

[0002] A can opener is a tool for opening canned food. It usually clamps and cuts a can by means of a rotating cutting blade and a rotating roller, and then releases the can by rotating the roller. The existing can openers generally need to manually adjust the extension of the roller to cooperate with the cutting blade to clamp and release the can, which is low in automation, complicated in operation, and poor in user experience. CONTENT OF THE UTILITY MODEL

[0003] In view of the above problems existing in the prior art, the purpose of the embodiments of the application is to provide a can opener capable of automatically clamping and releasing a can.

[0004] The technical scheme adopted by the embodiments of the application is a can opener comprising a support, a rotating shaft and a blade provided on the support, and a roller provided on the rotating shaft and used for cooperating with the blade to clamp or release a can, and the can opener further comprises:

[0005] an output gear sleeved on the rotating shaft;

[0006] a guide rail assembly fixed on the output gear and formed with a spiral track, the spiral track being provided with a first limiting portion and a second limiting portion;

[0007] a shaft pin provided on the spiral track and connected with the rotating shaft;

[0008] a driving mechanism connected with the output gear and used for driving the output gear to rotate in a first direction or a second direction opposite to the first direction, when the output gear rotates in the first direction, the spiral track of the guide rail assembly drives the shaft pin to drive the rotating shaft to move in a third direction, when the shaft pin moves to abut against the first limiting portion of the spiral track, the spiral track drives the shaft pin and the rotating shaft to synchronously rotate, and when the output gear rotates in the second direction, the spiral track drives the shaft pin to drive the rotating shaft to move in a fourth direction opposite to the third direction, when the shaft pin moves to abut against the second limiting portion of the spiral track, the spiral track drives the shaft pin and the rotating shaft to synchronously rotate.

[0009] In an optional embodiment, the guide rail assembly comprises:

[0010] The first guide rail has a first shaft hole concentric with the wheel hole of the output gear, the first guide rail is sleeved on the rotating shaft through the first shaft hole, and a first helical surface surrounding the first shaft hole is formed on a first end surface of the first guide rail in an axial direction of the first shaft hole;

[0011] The second guide rail is fixed with the first guide rail and has a second shaft hole concentric with the first shaft hole of the first guide rail, the second guide rail is sleeved on the rotating shaft through the second shaft hole, and a first end surface of the second guide rail faces the first end surface of the first guide rail and forms a second helical surface opposite to the first helical surface, the first helical surface and the second helical surface cooperatively form the helical track. The guide rail assembly of the application is designed in a structure form including two parts of the first guide rail and the second guide rail, which facilitates the formation of the helical track and also facilitates the installation of the helical track on the rotating shaft and the output gear.

[0012] In an optional embodiment, two convex columns are arranged on the first end surface of the first guide rail, and the two convex columns divide the first end surface of the first guide rail into two first helical surfaces which are axially symmetrical;

[0013] Two joint surfaces are arranged on the first end surface of the second guide rail, and the two joint surfaces divide the first end surface of the second guide rail into two second helical surfaces which are axially symmetrical;

[0014] When the first guide rail and the second guide rail are assembled together, the two convex columns are respectively abutted on the two joint surfaces, so that the two first helical surfaces and the two second helical surfaces cooperatively form two helical tracks which are axially symmetrical. With the two helical tracks, the shaft pin can be guided simultaneously, and the rotating shaft can move stably.

[0015] In an optional embodiment, the two first helical surfaces are helically raised from one end to the other end, so that the first helical surface forms a lowest position at one end and a highest position at the other end, and the two convex columns form the first limiting portions on the side connected with the highest position of the first helical surface and form the second limiting portions on the side connected with the lowest position of the first helical surface. With the two convex columns, two helical tracks and two limiting portions are formed simultaneously, which is ingenious and reasonable in design and simplifies the structure.

[0016] In an optional embodiment, a pin hole is arranged on the rotating shaft in a radial direction, the shaft pin is arranged in the pin hole, and both end portions of the shaft pin extend out of the pin hole and are arranged on the two helical tracks respectively, so that the rotating shaft is acted on by the shaft pin on both sides in the radial direction and is kept balanced in force.

[0017] Optionally, the first end of the second guide rail is inwardly recessed to form a concave cavity, and the second helical surface and the combination surface are formed on the cavity bottom of the concave cavity respectively; the two protruding columns extend into the concave cavity and abut against the two combination surfaces respectively. In this way, a closed helical track is formed between the two guide rails, and the structure is compact and stable.

[0018] Optionally, the can opener further comprises a gear box, the output gear and the guide rail assembly are arranged in the gear box, the rotating shaft passes through the output gear and the guide rail assembly, a sliding block is arranged between the rotating shaft and the upper cover of the gear box, the sliding block is sleeved on the rotating shaft and can move in the axial direction of the rotating shaft relative to the upper cover. In this way, the rotating shaft can move smoothly.

[0019] Optionally, a rubber sleeve is arranged between the sliding block and the rotating shaft, the rubber sleeve is fixed with the sliding block, and is used for increasing the friction when the rotating shaft rotates, so that the rotating shaft does not rotate with the output gear when the shaft pin does not move to abut against the first limiting portion or the second limiting portion.

[0020] Optionally, a hollow shaft portion is arranged on the support, the hollow shaft portion is sleeved on the rotating shaft and extends into the gear box through the lower cover of the gear box to abut against the first end surface of the output gear; the inner side of the upper cover of the gear box abuts against the guide rail assembly, and the guide rail assembly abuts against the second end surface of the output gear away from the first end surface, so as to axially position the output gear and avoid movement of the output gear along the rotating shaft.

[0021] Optionally, the driving mechanism comprises a motor and a gear set, the motor is connected with the output gear through the gear set.

[0022] The can opener further comprises a first switch for controlling the forward rotation of the motor and a second switch for controlling the reverse rotation of the motor, the output gear is driven to rotate in the first direction when the motor rotates forward, and the output gear is driven to rotate in the second direction when the motor rotates reversely. By pressing the first switch or the second switch, the can is clamped and released, which is convenient and fast.

[0023] Compared with the prior art, the can opener has the advantages that the shaft pin on the rotating shaft cooperates with the helical track on the guide rail assembly, the output gear driven by the driving mechanism and capable of driving the guide rail assembly to rotate, the roller is realized to be extended or retracted to clamp or release the can, the structure is simple, the operation is convenient, the stability is reliable, and the user experience is better.

[0024] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not intended to be restrictive of the application.

[0025] The summary of various implementations or examples of the technology described in this application is not an extensive disclosure of all possible combinations or features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS

[0026] In the drawings, which are not necessarily drawn to scale, like numerals can describe similar components in different views. The drawings are intended to illustrate various embodiments of the application, and are not intended to limit the application. Same reference numerals in different drawings can represent the same or similar functionality. Where appropriate, the same reference symbols outlined in the claims and the specification shall also apply to the drawings. Different instances of the same component can have different identifying reference numbers.

[0027] Figure 1 A perspective view of a can opener according to an embodiment of the application.

[0028] Figure 2 A cross-sectional view of a can opener according to an embodiment of the application.

[0029] Figure 3 An exploded view of a can opener according to an embodiment of the application.

[0030] Figure 4 A perspective view of a first guide rail according to an embodiment of the application.

[0031] Figure 5 A perspective view of a second guide rail according to an embodiment of the application.

[0032] Figure 6 and Figure 7 are respectively schematic views of a first guide rail according to an embodiment of the application mounted on a rotating shaft, wherein, Figure 6 the central shaft pin is located at a high position of the spiral track and is limited by a first limiting part, Figure 7 the central shaft pin is located at a low position of the spiral track and is limited by a second limiting part.

[0033] Figure 8 and Figure 9 are respectively schematic views of an output gear, a first guide rail and a rotating shaft according to an embodiment of the application, wherein, Figure 8 the central shaft pin is located at a high position of the spiral track and is limited by a first limiting part, Figure 9 the central shaft pin is located at a low position of the spiral track and is limited by a second limiting part, and the arrow direction in the figure indicates the rotating direction of the output gear and the rotating shaft.

[0034] Reference numerals:

[0035] 1 - support; 11 - hollow shaft part; 2 - rotating shaft; 21 - roller; 22 - oil bearing; 23 - sliding block; 24 - rubber sleeve; 3 - output gear; 4 - guide rail assembly; 41 - first guide rail; 411 - first shaft hole; 412 - first helical surface; 413 - protruding column; 414 - first limiting part; 415 - second limiting part; 42 - second guide rail; 421 - second shaft hole; 422 - second helical surface; 423 - joint surface; 5 - shaft pin; 6 - gear box; 61 - upper cover; 62 - lower cover; 7 - driving mechanism; 71 - motor; 72 - gear set; 8 - first switch; 9 - second switch; 10 - blade. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort belong to the scope of protection of the present application.

[0037] Unless otherwise defined, technical or scientific terms used in the present application should be understood as having the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms "first", "second" and similar terms used in the present application do not denote any order, quantity or importance, but are used to distinguish different components. The terms "comprise", "include" and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connected" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0038] In order to keep the following description of the embodiments of the present application clear and simple, the present application omits the detailed description of known functions and known components.

[0039] As shown in Figure 1 and Figure 2 The embodiments of the present application provide an opener, which comprises a support 1, a rotating shaft 2 and a blade 10. The rotating shaft 2 and the blade 10 are both arranged on the support 1, the rotating shaft 2 is provided with a roller 21, and the rotating shaft 2 is axially movable to drive the roller 21 to approach or move away from the blade 10, so as to clamp or release a can in cooperation with the blade 10, and when the can is clamped, the blade 10 is used to cut the lid of the can to open the can.

[0040] As shown in Figure 2 and Figure 3 The opener further comprises an output gear 3, a guide rail assembly 4, a shaft pin 5 and a driving mechanism 7. The output gear 3 is sleeved on the rotating shaft 2 and is connected with the rotating shaft 2 in a non-tight fit manner, so that the rotating shaft 2 is not driven to rotate when the output gear 3 rotates. The guide rail assembly 4 is fixed on the output gear 3 and can be driven to rotate synchronously with the output gear 3 when the output gear 3 rotates. The guide rail assembly 4 is provided with a spiral track, and the spiral track is provided with a first limiting portion 414 and a second limiting portion 415. The shaft pin 5 is arranged on the spiral track and connected with the rotating shaft 2. The driving mechanism 7 is connected with the output gear 3 and used for driving the output gear 3 to rotate in a first direction or a second direction opposite to the first direction. When the output gear 3 rotates in the first direction, the guide rail assembly 4 is driven to rotate synchronously, and the spiral track on the guide rail assembly 4 drives the shaft pin 5 to drive the rotating shaft 2 to move linearly in a third direction when the guide rail assembly 4 rotates, so that the roller 21 on the rotating shaft 2 is close to the blade 10 and clamps the can in cooperation with the blade 10; when the shaft pin 5 moves to abut against the first limiting portion 414 of the spiral track, the movement of the shaft pin 5 is limited and stops, and the shaft pin 5 rotates together with the guide rail assembly 4 driven by the spiral track. Since the shaft pin 5 is connected with the rotating shaft 2, the rotating shaft 2 and the roller 21 arranged on the rotating shaft 2 are driven to rotate synchronously when the shaft pin 5 rotates. The roller 21 drives the clamped can to rotate when the roller 21 rotates, and the blade 10 cuts the can to open the can at the same time. When the output gear 3 rotates in the second direction, the spiral track drives the shaft pin 5 to drive the rotating shaft 2 to move in a fourth direction opposite to the third direction, so that the roller 21 on the rotating shaft 2 moves away from the blade 10 to release the can; when the shaft pin 5 moves to abut against the second limiting portion 415 of the spiral track, the movement of the shaft pin 5 is limited and cannot continue, and the shaft pin 5 and the rotating shaft 2 are driven to rotate synchronously by the spiral track.

[0041] The opener of the embodiment of the present application can automatically clamp and release the can under the driving of the driving mechanism 7 through the cooperation of the guide rail assembly 4 with the spiral track and the shaft pin 5 connected with the rotating shaft 2, so that the user can operate quickly.

[0042] In some embodiments, the guide rail assembly 4 comprises a first guide rail 41 and a second guide rail 42, both of which are fixed on the output gear 3 and can rotate synchronously with the output gear 3. The first guide rail 41 has a first shaft hole 411 concentric with a wheel hole of the output gear 3, the first guide rail 41 is sleeved on the rotating shaft 2 through the first shaft hole 411, and a first spiral surface 412 around the first shaft hole 411 is formed on a first end face of the first guide rail 41 in an axial direction of the first shaft hole 411, see Figure 4The second guide rail 42 is fixed with the first guide rail 41 and has a second shaft hole 421 concentric with the first shaft hole 411 of the first guide rail 41, the second guide rail 42 is sleeved on the rotating shaft 2 through the second shaft hole 421, and a first end surface of the second guide rail 42 faces a first end surface of the first guide rail 41 and forms a second helical surface 422 opposite to the first helical surface 412 (see Figure 5 ). The first helical surface 412 and the second helical surface 422 cooperatively form a helical track. The guide rail assembly 4 of the present application is designed in a structure including two parts of the first guide rail 41 and the second guide rail 42, which facilitates the arrangement of the helical surfaces and the formation of the helical track, and also facilitates the installation of the helical track on the rotating shaft 2 and the output gear 3.

[0043] It can be understood that when the first guide rail 41 and the second guide rail 42 are both installed on the rotating shaft 2 and fixed on the output gear 3, the first helical surface 412 and the second helical surface 422 on the two guide rails are parallel to each other and are spaced apart by a certain distance to form a helical track for the shaft pin 5 to be placed therein, and the helical surfaces and the shaft pin 5 need to maintain a certain movement gap so that the shaft pin 5 can move smoothly without jamming.

[0044] In some embodiments, as shown in Figure 4 , two protruding columns 413 are arranged on the first end surface of the first guide rail 41, and the two protruding columns 413 divide the first end surface of the first guide rail 41 into two first helical surfaces 412 which are axially symmetrical. That is, the two first helical surfaces 412 are symmetrical about the first shaft hole 411. As shown in Figure 5 , two joint surfaces 423 are arranged on the first end surface of the second guide rail 42, and the two joint surfaces 423 divide the first end surface of the second guide rail 42 into two second helical surfaces 422 which are axially symmetrical, that is, the two second helical surfaces 422 are symmetrical about the second shaft hole 421. When the first guide rail 41 and the second guide rail 42 are assembled together, the two protruding columns 413 respectively abut against the two joint surfaces 423, so that the two first helical surfaces 412 and the two second helical surfaces 422 cooperatively form two axially symmetrical helical tracks. With the two helical tracks, the shaft pin 5 can be guided at the same time, so that the rotating shaft 2 can move smoothly.

[0045] Continuing to combine Figure 4 , the two first helical surfaces 412 are in Figure 4The two protrusions 413 are respectively provided with a first limiting part 414 at the side connected with the highest position of the first helical surface 412 and a second limiting part 415 at the side connected with the lowest position of the first helical surface 412. By means of the two protrusions 413, the first end surface of the two guide rails is divided into two axis-symmetrical helical surfaces to form two helical tracks, and two limiting parts are formed to limit the movement of the shaft pin 5 so that the shaft pin 5 rotates with the guide rail. The structure is simple, ingenious and reasonable.

[0046] In some embodiments, the rotating shaft 2 is provided with a pin hole in the radial direction thereof, the shaft pin 5 is arranged in the pin hole, and the two end portions of the shaft pin 5 extend out of the pin hole (see Figure 6 ) and are respectively arranged on the two helical tracks. In this way, the rotating shaft 2 is acted on by the shaft pin 5 on both sides in the radial direction thereof, so that the force is balanced, the rotating shaft 2 is prevented from being deviated, and the rotating shaft 2 can move smoothly and stably.

[0047] In some embodiments, as shown in Figure 5 , the first end surface of the second guide rail 42 is inwardly recessed to form a recessed cavity, and the second helical surface 422 and the joint surface 423 are respectively formed on the cavity bottom of the recessed cavity. The two protrusions 413 respectively extend into the recessed cavity and abut against the two joint surfaces 423. In this way, when the two guide rails are fixed together, the first end surface of the first guide rail 41 and the first end surface of the second guide rail 42 are fitted around the part of the recessed cavity to form a closed helical track, and the shaft pin 5 is embedded in the helical track, so that the structure is more compact and the stability is improved.

[0048] Continuing to combine Figure 4 , the outer peripheral surface of the first guide rail 41 can be designed in a polyhedral form, and the wheel hole of the output gear 3 can include two coaxial parts, a first part designed as a circular hole matched with the rotating shaft 2 and sleeved outside the rotating shaft 2, and a second part designed as a polygonal hole, in which the first guide rail 41 is embedded and fixed. The first shaft hole 411 of the first guide rail 41 is a circular hole sleeved outside the rotating shaft 2. That is, the first guide rail 41 is located between the output gear 3 and the rotating shaft 2, and the second part of the wheel hole of the output gear 3 is sleeved outside the rotating shaft 2 through the first guide rail 41.

[0049] In some embodiments, as shown in Figure 2 and Figure 3As shown, the opener further comprises a gear box 6, the output gear 3 and the guide rail assembly 4 are arranged in the gear box 6, the rotating shaft 2 penetrates the output gear 3 and the guide rail assembly 4, and the two ends of the rotating shaft 2 respectively extend out of the gear box 6. A sliding block 23 capable of sliding relative to the upper cover 61 is arranged between the rotating shaft 2 and the upper cover 61 of the gear box 6, so that the rotating shaft 2 can move along its own axial direction relative to the gear box 6. That is, the sliding block 23 is sleeved on the rotating shaft 2 and is in sliding connection with the upper cover 61. The sliding block 23 can only move relative to the upper cover 61 in the axial direction of the rotating shaft 2, but cannot rotate. When the sliding block 23 moves relative to the upper cover 61, the rotating shaft 2 moves synchronously. When the rotating shaft 2 rotates, the sliding block 23 does not rotate with the rotating shaft 2.

[0050] Further, as shown in Figure 2 A rubber sleeve 24 is arranged between the sliding block 23 and the rotating shaft 2. The rubber sleeve 24 is fixed with the sliding block 23 and is used to increase the friction when the rotating shaft 2 rotates, so that the rotating shaft 2 does not rotate with the output gear 3 when the shaft pin 5 does not move to abut against the first limiting portion 414 or the second limiting portion 415. By arranging the rubber sleeve 24, the rotating resistance of the rotating shaft 2 can be increased. When the output gear 3 starts to rotate, the rotating shaft 2 will not rotate with the output gear 3 due to the existence of the resistance. Only when the shaft pin 5 moves along the spiral rail to be stopped by the two limiting portions, the rotating shaft 2 can overcome the rotating resistance and rotate synchronously with the shaft pin 5 and the output gear 3 under the rotating pushing action of the spiral rail on the shaft pin 5.

[0051] As shown in Figure 3 The bracket 1 is provided with a hollow shaft portion 11. One end of the hollow shaft portion 11 penetrates the lower cover 62 of the gear box 6 and extends into the gear box 6, and abuts against the first end face of the output gear 3. The inner side of the upper cover 61 of the gear box 6 is formed with a protrusion facing the guide rail assembly 4. The protrusion abuts against the guide rail assembly 4, and the guide rail assembly 4 abuts against the second end face of the output gear 3 away from the first end face. In this way, the hollow shaft portion 11 and the protrusion on the upper cover 61 cooperate with each other and abut against the opposite sides in the axial direction of the output gear 3, respectively, so as to realize the axial positioning of the output gear 3 and avoid the movement of the output gear 3 along the rotating shaft 2.

[0052] As shown in Figure 2 The rotating shaft 2 penetrates the hollow shaft portion 11, the lower cover 62, the output gear 3, the first guide rail 41, the second guide rail 42, the sliding block 23 and the upper cover 61 of the bracket 1 in sequence. An oil-containing bearing 22 is arranged between the rotating shaft 2 and the hollow shaft portion 11.

[0053] In some embodiments, as shown in Figure 2 and Figure 3As shown, the driving mechanism 7 comprises a motor 71 and a gear set 72, the motor 71 is connected with the output gear 3 through the gear set 72. The motor 71 can rotate in positive direction and reverse direction to drive the output gear 3 to rotate in the first direction or the second direction.

[0054] As shown in Figure 1 and Figure 2 shown, the can opener further comprises a first switch 8 for controlling the motor 71 to rotate in positive direction and a second switch 9 for controlling the motor 71 to rotate in reverse direction, when the first switch 8 is pressed, the motor 71 rotates in positive direction and drives the output gear 3 to rotate in the first direction, when the second switch 9 is pressed, the motor 71 rotates in reverse direction and drives the output gear 3 to rotate in the second direction. By pressing the first switch 8 or the second switch 9, the output gear 3 can rotate in the first direction or the second direction, and the rotating shaft 2 is first moved and then rotated, realizing the cooperation of the roller 21 on the rotating shaft 2 with the blade 10 to clamp and release the can, which is convenient and fast, and the user experience is good.

[0055] The first switch 8 can be set as a can opening button, and the second switch 9 is set as a release button, which is convenient for users to distinguish and avoid misoperation, when the can needs to be opened, the can opening button is pressed, and the output gear 3 drives the rotating shaft 2 to move in the third direction (the direction in which the roller 21 approaches the blade 10) through the guide rail assembly 4, the gap between the roller 21 and the blade 10 is reduced, the can can be clamped, and the rotating shaft 2 is then rotated to cut the can; when the can needs to be released, the release button is pressed, and the output gear 3 drives the rotating shaft 2 to move in the fourth direction (the direction in which the roller 21 moves away from the blade 10) through the guide rail assembly 4, the gap between the roller 21 and the blade 10 is increased, so as to loosen the opened can and smoothly take it out, realizing the release of the can.

[0056] The can opener of the embodiment of the present application can control the roller 21 to automatically extend and retract (retracting is moving in the third direction, and extending is moving in the fourth direction) to clamp and release the can through two switches. The roller 21 extends to release the can, which can be easily taken out, only needs to be caught by hand; the roller 21 retracts to clamp the can, only needs to put the edge of the can into the gap between the roller 21 and the blade 10 before retraction, and then press the first switch 8, the can opener will automatically clamp the can and cut it. That is, the user only needs to press the switch lightly to clamp and release the can, which is more convenient to use.

[0057] The working principle of the can opener of the embodiment of the present application will be described below:

[0058] Cutting the can: when the first switch 8 (can opening button) is pressed, the output gear 3 rotates in the first direction, and the rotating shaft 2 is first moved and then rotated, so that the roller 21 on the rotating shaft 2 is separated from the blade 10, and the can is clamped and cut. Figure 8When rotating in the direction of the middle arrow, due to the resistance between the rotating shaft 2 and the rubber sleeve 24, the rotating shaft 2 will not initially rotate synchronously with the output gear 3. At this time, the spiral track formed by the cooperation of the first spiral surface 412 of the first guide rail 41 and the second spiral surface 422 of the second guide rail 42 will force the pin 5 from the lowest position of the spiral track to the highest position of the spiral track (first spiral surface 412), that is, the pin 5 undergoes radial displacement, and drives the rotating shaft 2 to move backward (rotating shaft 2 towards...). Figure 2 (Move to the right) to bring the roller 21 on the rotating shaft 2 closer to the blade 10, creating a gap between it and the blade 10 to clamp the can, thus achieving clamping of the can. After the shaft pin 5 reaches its highest position (see... Figure 6 and Figure 8 Since it is stopped by the first limiting part 414, it cannot continue to move. Without changing the direction of the output gear 3, the guide rail assembly 4 will drive the shaft pin 5 and the rotating shaft 2 and the output gear 3 to rotate synchronously. The rotating shaft 2 drives the roller 21 and the can to rotate. In this way, the function of clamping and cutting the can is realized.

[0059] Release tank: When the second switch 9 (release button) is pressed, the output gear 3 moves along... Figure 9 When rotating in the direction of the arrow, due to the resistance between the rotating shaft 2 and the rubber sleeve 24, the rotating shaft 2 will not initially rotate synchronously with the output gear 3. At this time, the spiral track formed by the cooperation of the first spiral surface 412 of the first guide rail 41 and the second spiral surface 422 of the second guide rail 42 will forcibly push the shaft pin 5 from the highest position of the spiral track to the lowest position of the spiral track (first spiral surface 412), that is, the shaft pin 5 undergoes radial displacement, and drives the rotating shaft 2 to move forward (the rotating shaft 2 moves towards the...). Figure 2 (Move to the left in the middle), causing the roller 21 on the rotating shaft 2 to move away from the blade 10, and forming a gap between the roller 21 and the blade 10 to release the can, thus releasing the can. When the shaft pin 5 reaches the lowest position (see...) Figure 7 and Figure 9 Because it is stopped by the second limiting part 415, it cannot continue to move. With the output gear 3 not changing direction and continuing to rotate under the drive of the motor 71, the guide rail assembly 4 will drive the shaft pin 5 and the rotating shaft 2 to rotate synchronously with the output gear 3. It can be understood that when the guide rail assembly 4 drives the shaft pin 5 to the lowest position of the spiral track, the rotating shaft 2 has already driven the roller 21 to a position where the can can be released. At this point, the second switch 9 can be closed, stopping the motor 71.

[0060] The can opener of this application embodiment has a simple structure, is easy to operate, stable and reliable, can improve user experience, and has considerable market prospects.

[0061] The above description is intended to be illustrative and not restrictive. One skilled in the art could, with the disclosures herein, make variations, modifications, substitutions, and alterations to the described embodiments without deviating from the scope of the disclosure. Moreover, the above examples (or one or more aspects thereof) can be used in combination with each other and the embodiments can be combined with each other in various combinations or permutations as contemplated.

Claims

1. A can opener comprising a support (1), a rotating shaft (2) and a blade (10) arranged on said support (1), and a roller (21) arranged on said rotating shaft (2) for cooperating with said blade (10) to grip or release a can, characterized in that, The can opener further comprises: an output gear (3) sleeved on the rotating shaft (2); a guide rail assembly (4) fixed on the output gear (3) and formed with a spiral track, the spiral track being provided with a first limiting portion (414) and a second limiting portion (415); a shaft pin (5) provided on the spiral track and connected with the rotating shaft (2); a driving mechanism (7) connected with the output gear (3) and used for driving the output gear (3) to rotate in a first direction or a second direction opposite to the first direction, when the output gear (3) rotates in the first direction, the spiral track of the guide rail assembly (4) drives the shaft pin (5) to drive the rotating shaft (2) to move in a third direction, when the shaft pin (5) moves to abut against the first limiting portion (414) of the spiral track, the spiral track drives the shaft pin (5) and the rotating shaft (2) to rotate synchronously, when the output gear (3) rotates in the second direction, the spiral track drives the shaft pin (5) to drive the rotating shaft (2) to move in a fourth direction opposite to the third direction, when the shaft pin (5) moves to abut against the second limiting portion (415) of the spiral track, the spiral track drives the shaft pin (5) and the rotating shaft (2) to rotate synchronously.

2. The can opener of claim 1, wherein, The guide rail assembly (4) comprises: a first guide rail (41) having a first shaft hole (411) concentric with a wheel hole of the output gear (3), the first guide rail (41) being sleeved on the rotating shaft (2) through the first shaft hole (411), a first spiral surface (412) surrounding the first shaft hole (411) being formed on a first end surface of the first guide rail (41) in an axial direction of the first shaft hole (411); a second guide rail (42) fixed with the first guide rail (41) and having a second shaft hole (421) concentric with the first shaft hole (411) of the first guide rail (41), the second guide rail (42) being sleeved on the rotating shaft (2) through the second shaft hole (421), a first end surface of the second guide rail (42) facing the first end surface of the first guide rail (41) and forming a second spiral surface (422) opposite to the first spiral surface (412), the first spiral surface (412) and the second spiral surface (422) cooperating to form the spiral track.

3. The can opener of claim 2, wherein, Two convex columns (413) are arranged on the first end surface of the first guide rail (41), the two convex columns (413) separating the first end surface of the first guide rail (41) into two first spiral surfaces (412) which are axially symmetrical; two combining surfaces (423) are arranged on the first end surface of the second guide rail (42), the two combining surfaces (423) separating the first end surface of the second guide rail (42) into two second spiral surfaces (422) which are axially symmetrical; When the first guide rail (41) and the second guide rail (42) are assembled together, the two convex columns (413) are respectively abutted on the two combination surfaces (423), so that the two first helical surfaces (412) and the two second helical surfaces (422) are respectively matched to form two axisymmetric helical tracks.

4. The can opener of claim 3, wherein, The two first helical surfaces (412) are helically raised from one end to the other end, so that the first helical surface (412) forms a lowest position at one end and a highest position at the other end, the two convex columns (413) and the side of the highest position of the first helical surface (412) form the first limiting portion (414), and the two convex columns (413) and the side of the lowest position of the first helical surface (412) form the second limiting portion (415).

5. The can opener of claim 3, wherein, The rotating shaft (2) is provided with a pin hole in the radial direction, the shaft pin (5) is arranged in the pin hole, and the two ends of the shaft pin (5) are arranged on the two helical tracks.

6. The can opener of claim 5, wherein, The first end surface of the second guide rail (42) is inwardly recessed to form a cavity, and the second helical surface (422) and the combination surface (423) are formed on the cavity bottom; the two convex columns (413) extend into the cavity and abut on the two combination surfaces (423).

7. The can opener of claim 1, wherein, The can opener further comprises a gear box (6), the output gear (3) and the guide rail assembly (4) are arranged in the gear box (6), the rotating shaft (2) passes through the output gear (3) and the guide rail assembly (4), a sliding block (23) is arranged between the rotating shaft (2) and the upper cover (61) of the gear box (6), the sliding block (23) is sleeved on the rotating shaft (2) and can move in the axial direction of the rotating shaft (2) relative to the upper cover (61).

8. The can opener of claim 7, wherein, A rubber sleeve (24) is arranged between the sliding block (23) and the rotating shaft (2), the rubber sleeve (24) is fixed with the sliding block (23) and is used for increasing the friction when the rotating shaft (2) rotates, so that the rotating shaft (2) does not rotate with the output gear (3) when the shaft pin (5) does not move to abut on the first limiting portion (414) or the second limiting portion (415).

9. The can opener of claim 7, wherein, A hollow shaft portion (11) is arranged on the support (1), the hollow shaft portion (11) is sleeved on the rotating shaft (2) and passes through the lower cover (62) of the gear box (6) to extend into the gear box (6) to abut on the first end surface of the output gear (3); the inner side of the upper cover (61) of the gear box (6) abuts on the guide rail assembly (4), and the guide rail assembly (4) abuts on the second end surface of the output gear (3) away from the first end surface, so as to axially position the output gear (3).

10. The can opener of claim 1, wherein, The driving mechanism (7) comprises a motor (71) and a gear set (72), and the motor (71) is connected with the output gear (3) through the gear set (72). The can opener further comprises a first switch (8) for controlling the forward rotation of the motor (71) and a second switch (9) for controlling the reverse rotation of the motor (71), the output gear (3) being driven to rotate in the first direction when the motor (71) rotates forward and in the second direction when the motor (71) rotates reverse.

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