Can opening machine

Abstract

A can opening machine comprises a shell, a power mechanism, a transmission mechanism, a sliding assembly and a cutting mechanism, the sliding assembly is connected and linked with the transmission mechanism, the cutting mechanism comprises a cutting assembly and an idling clamping assembly, the cutting assembly is connected with the transmission mechanism, the idling clamping assembly is connected with the sliding assembly, and the idling clamping assembly is driven by the transmission mechanism to clamp a can. The sliding assembly drives the idling clamping assembly to get away from or get close to the cutting assembly so as to be matched with the cutting assembly to loosen or clamp the tank. The idling clamping assembly comprises a connecting shaft and an idling wheel, one end of the connecting shaft is connected with the sliding assembly, the other end of the connecting shaft extends out of the shell, the idling wheel is located on the outer side of the shell and arranged on the connecting shaft in a sleeving mode, a buffer ring is arranged on the outer side wall of the idling wheel, and when the cutting assembly conducts cutting operation, the buffer ring is used for abutting against the tank. The can opening machine adopting the technical scheme has the advantages that the backward warping angle of the machine body is high and small, the load is small, and damage to a can body is small.

Description

Technical Field

[0001] The utility model relates to the technical field of portable household appliances, in particular to a can opener. Background Art

[0002] A can opener, also known as a can cutter, is a device mainly used to open cans. A can opener usually includes: a power mechanism, a transmission mechanism and a cutting mechanism. The power mechanism transmits driving force to the cutting mechanism through the transmission mechanism, so that the cutting mechanism cuts the can. When the can opener is used, the cutting mechanism needs to clamp the edge of the can first, and then the power mechanism and the transmission mechanism drive the cutting mechanism to cut the edge of the can.

[0003] Since the cutting mechanism is arranged on one side of the can opener, when the cutting mechanism clamps the edge of the can, the other side of the can opener is easy to tilt up, causing the can body to be seriously compressed, the cutting mechanism to be overloaded, the cut edge of the can body to turn inward, and the cover of the can is difficult to fall off after cutting. Summary of the invention

[0004] The utility model aims to provide a can opener with the advantages of small rearward tilt angle of the machine body, small load and little damage to the can body in view of the defects and shortcomings of the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a can opener, including a shell, a power mechanism, a transmission mechanism, a sliding assembly and a cutting mechanism, the sliding assembly is connected and linked to the transmission mechanism, the cutting mechanism includes: a cutting assembly and an idle clamping assembly, the cutting assembly is connected to the transmission mechanism, the idle clamping assembly is connected to the sliding assembly, under the drive of the transmission mechanism, the sliding assembly drives the idle clamping assembly away from or close to the cutting assembly to cooperate with the cutting assembly to loosen or clamp the can body; the idle clamping assembly includes: a connecting shaft and an idle wheel, one end of the connecting shaft is connected to the sliding assembly, and the other end extends out of the shell, the idle wheel is located outside the shell, and is sleeved on the connecting shaft, and a buffer ring is provided on the outer side wall of the idle wheel, and when the cutting assembly performs a cutting operation, the buffer ring is used to press against the can body.

[0006] In one of the embodiments, an annular groove is provided on the outer side wall of the idler wheel, a portion of the buffer ring is installed in the annular groove, and another portion protrudes from the outer side wall of the idler wheel.

[0007] In one embodiment, the buffer ring is made of a material with elastic deformation capability.

[0008] In one embodiment, the transmission mechanism and the power mechanism are both arranged in the shell, and the transmission mechanism includes: a gear set, which is installed on the inner wall of the shell and can rotate relative to the inner wall, the gear set is connected to the power output end of the power mechanism, and is used to transmit the torque output by the power mechanism; a main drive gear, which is rotatably assembled on the inner wall of the shell, the main drive gear is meshed with the gear set to transmit torque to the cutting mechanism, and a linkage groove is provided on the end face of the main drive gear facing the cutting mechanism; an eccentric disk, which is arranged on the outer side of the shell and is rotatably assembled with the shell, the eccentric disk is coaxially arranged with the main drive gear; and a movable block, which can be raised and lowered on the eccentric disk, and the movable block is used to insert or withdraw from the linkage groove so that the eccentric disk and the main drive gear are linked or stopped.

[0009] In one of the embodiments, the movable block is provided with an inclined surface, a first vertical surface and a second vertical surface on one side close to the main drive gear, and the first vertical surface is parallel to the second vertical surface; when the main drive gear rotates forward, the linkage groove abuts against the first vertical surface to drive the eccentric disk to rotate forward; when the main drive gear rotates forward beyond the limit position, the linkage groove and the inclined surface slide relative to each other, so that the movable block withdraws from the linkage groove to stop driving the eccentric disk to rotate forward; when the main drive gear rotates reversely, the linkage groove abuts against the second vertical surface to drive the eccentric disk to rotate reversely.

[0010] In one of the embodiments, a mounting seat is provided on the eccentric disk, and a mounting groove is provided on the mounting seat and passes through the mounting seat and the eccentric disk along the axis of the main driving gear, and the movable block is installed in the mounting groove.

[0011] In one of the embodiments, the transmission mechanism also includes: a fixed plate, installed in the installation groove and fixedly engaged with a side of the installation groove away from the main drive gear; and an elastic member, one end of which is connected to the movable block and the other end of which is connected to the fixed plate, and the elastic member is used to squeeze the movable block toward the side of the main drive gear so that the movable block is inserted into the linkage groove.

[0012] In one of the embodiments, a mounting opening is provided on the shell, and the mounting seat is installed in the mounting opening. When the eccentric disk rotates, the mounting seat is driven to move in the mounting opening; a fastener is provided on the shell, and the fastener is used to suppress the movable block and compress the elastic member when the main drive gear rotates forward beyond the limit position, so that the linkage groove and the inclined surface slide relative to each other.

[0013] In one embodiment, the fastener extends along the rotation direction of the main drive gear, a first guide surface is provided at the bottom of the fastener, and a second guide surface corresponding to the first guide surface is provided on the movable block. When the main drive gear rotates to the extreme position, the fastener presses the movable block by causing the first guide surface and the second guide surface to slide relative to each other.

[0014] In one embodiment, a plurality of linkage grooves are provided, and the plurality of linkage grooves are evenly distributed along the rotation direction of the main driving gear.

[0015] After adopting the above technical solution, the utility model has the following beneficial effects: by setting a buffer ring on the idle wheel, the buffer ring is used to press against the can body when the cutting assembly is performing a cutting operation. The can opener thus set can, on the one hand, reduce the backward tilt height of the can opener body during cutting, so that the extrusion between the cutting wheel and the can body is in a slight state, thereby reducing the load of the cutting wheel during the cutting process; on the other hand, it can increase the force area between the idle wheel and the can body, reduce the indentation caused by the cutting wheel on the can body during the cutting process, thereby further reducing the damage to the can body; in addition, the contact area between the idle wheel and the can body is increased, which can increase the friction between the idle wheel and the can body, thereby preventing the idle wheel from slipping, avoiding cutting burrs and wires, and also playing a buffering role in places where the can body is unevenly packaged, thereby avoiding damage to the cutting knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 It is an exploded view of an embodiment of the utility model;

[0019] Figure 3 It is an exploded view of another embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the lower housing, power mechanism, transmission mechanism and travel switch in one embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the lower housing, the power mechanism and the transmission mechanism in one embodiment of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the lower housing, power mechanism, transmission mechanism, cutting mechanism and travel switch in one embodiment of the utility model;

[0023] Figure 7 It is a structural schematic diagram of the lower housing, the movable block, the travel switch and the sliding assembly in one embodiment of the utility model;

[0024] Figure 8 It is a structural schematic diagram of an eccentric disk, a sliding assembly and an idling clamping assembly in one embodiment of the utility model;

[0025] Fig. 9 It is a structural schematic diagram of a housing, a sliding assembly and an idling clamping assembly in one embodiment of the utility model;

[0026] Fig.10 This is a schematic diagram of the structure of the main driving gear in one embodiment of the utility model;

[0027] Fig.11 It is a structural schematic diagram of an eccentric disk, a movable block, an elastic member and a fixed plate in one embodiment of the utility model;

[0028] Fig.12 It is a structural schematic diagram of an eccentric disk, a movable block, an elastic member and a fixed plate in another embodiment of the utility model;

[0029] Explanation of reference numerals: 1. Shell; 11. Upper shell; 111. Upper shell cover; 112. Upper shell body; 1121. Battery compartment; 113. Fixed cover; 12. Lower shell; 120. Mounting port; 121. Mounting portion; 122. Groove; 123. Fastener; 1231. First guide surface; 124. Clamping hole; 125. Sliding groove; 13. Fixed cover; 131. Clamping joint; 2. Power mechanism; 21. Driving gear; 3. Transmission mechanism; 31. Gear set; 311. Transmission gear; 32. Main drive gear; 33. Eccentric disk; 330. Mounting groove; 331. Mounting seat; 3310. Avoidance groove; 332. Eccentric Column; 34, movable block; 341, inclined surface; 342, first vertical surface; 343, second vertical surface; 344, limiting portion; 345, second guide surface; 346, buckling groove; 35, sliding assembly; 351, sliding plate; 3511, assembly groove; 352, sliding seat; 3521, trigger column; 353, connecting plate; 36, fixed plate; 37, elastic member; 4, cutting mechanism; 41, cutting assembly; 411, transmission shaft; 412, cutting wheel; 42, idling clamping assembly; 421, connecting shaft; 422, fastener; 423, idling wheel; 4231, buffer ring; 4232, annular groove; 5, travel switch. DETAILED DESCRIPTION

[0030] The scheme in the embodiment of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0031] In the description of the embodiments of the present utility model, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0033] See also Figures 1 to 6 This embodiment relates to a can opener, comprising a housing 1, a power mechanism 2, a transmission mechanism 3, a sliding assembly 35 and a cutting mechanism 4. The power mechanism 2, the transmission mechanism 3 and the cutting mechanism 4 are all arranged in the housing 1, and a portion of the cutting mechanism 4 extends out of the housing 1 to contact the can body, thereby performing a cutting operation on the can body.

[0034] In one embodiment, the housing 1 includes: an upper housing 11 and a lower housing 12. The upper housing 11 is fixedly assembled with the lower housing 12 by fastening screws, so as to install and fix the power mechanism 2, the transmission structure 3 and the cutting mechanism 4.

[0035] Specifically, the upper shell 11 includes: an upper shell cover 111, an upper shell body 112 and a fixed cover plate 113. The upper shell body 112 is fixedly assembled with the lower shell 12 by fastening screws. A battery compartment 1121 is provided on the upper shell body 112. The battery compartment 1121 is used for detachable assembly of batteries, thereby powering the can opener. The upper shell cover 111 is arranged on a side of the upper shell body 112 away from the lower shell 12, and the upper shell cover 111 is snap-connected with the upper shell body 112, and the battery compartment 1121 can be opened or closed to replace the battery in the battery compartment 1121. The fixed cover plate 113 is arranged between the upper shell body 112 and the lower shell 12. The fixed cover plate 113 is fixedly assembled with the lower shell 12 by fastening screws, so that the transmission mechanism 3 is fixedly mounted on the lower shell 12, so that the transmission mechanism 3 can be installed.

[0036] See also Figures 2 to 7 In one embodiment, the power mechanism 2 is a driving motor, and a driving gear 21 is fixedly mounted on the power output shaft of the driving motor 2. The driving gear 21 is meshed with the transmission mechanism 3, thereby transmitting the torque generated by the driving motor to the transmission mechanism 3.

[0037] In one embodiment, the transmission mechanism 3 includes: a gear set 31 , a main driving gear 32 , an eccentric disc 33 and a movable block 34 .

[0038] Specifically, the gear set 31 is fixedly mounted on the inner side wall of the lower housing 12. The gear set 31 includes a plurality of transmission gears 311, and the plurality of transmission gears 311 are rotatably assembled with the lower housing 12 through a rotating shaft, thereby transmitting the torque generated by the power mechanism 2. The transmission gear 311 closest to the power mechanism 2 in the gear set 31 meshes with the driving gear 21 to transmit the torque. The main drive gear 32 is rotatably assembled on the lower housing 12. The main drive gear 32 meshes with the transmission gear 311 on the side farthest from the power mechanism 2 in the gear set 31, thereby receiving and continuing to transmit the torque generated by the power mechanism 2. A linkage groove 320 is provided on the end surface of the main drive gear 32 facing the side where the cutting mechanism 4 is located. The eccentric disk 33 is arranged on the outer side of the lower housing 12 and rotatably assembled with the lower housing 12. The movable block 34 is arranged on the eccentric disk 33 so as to be liftable. The movable block 34 is used to insert or withdraw from the linkage groove 320 so as to make the eccentric disk 33 and the main drive gear 32 interlock or stop interlocking.

[0039] In one embodiment, the eccentric disk 33 is coaxially arranged with the main drive gear 32, which can effectively improve the tightness and stability of the combination of the main drive gear 32 and the eccentric disk 33 on the one hand, and on the other hand, can also make the torque transmission process smooth and reliable, and have high transmission efficiency and high transmission accuracy.

[0040] See also Figure 5 , Figures 9 to 12In one embodiment, a side of the movable block 34 close to the main driving gear 32 is provided with an inclined surface 341, a first vertical surface 342 and a second vertical surface 343. The first vertical surface 342 and the second vertical surface 343 are arranged in parallel.

[0041] It should be noted that when the main drive gear 32 rotates forward, the linkage groove 320 abuts against the first vertical surface 342 to drive the eccentric disk 33 to rotate forward; when the main drive gear 32 rotates forward beyond the limit position, the linkage groove 320 and the inclined surface 341 slide relative to each other, so that the movable block 34 withdraws from the linkage groove 320 to stop driving the eccentric disk 33 to rotate forward; when the main drive gear 32 rotates reversely, the linkage groove 320 abuts against the second vertical surface 343 to drive the eccentric disk 33 to rotate reversely.

[0042] In one embodiment, a plurality of linkage grooves 320 are provided, and the plurality of linkage grooves 320 are evenly distributed along the rotation direction of the main driving gear 32. With such a configuration, when the main driving gear 32 rotates forward or reversely, the movable block 34 can quickly cooperate with the linkage groove 320 to achieve linkage. In this embodiment, the linkage groove 320 is a fan-shaped groove.

[0043] In one embodiment, a mounting seat 331 is provided on the eccentric disk 33, and a mounting groove 330 is provided on the mounting seat 331 and penetrates the mounting seat 331 and the eccentric disk 33 along the axis direction of the main driving gear 32, and the movable block 34 can be installed in the mounting groove 330 in a liftable manner.

[0044] Please continue reading Figure 5 , Figures 9 to 12 In one embodiment, the transmission mechanism 3 further includes: a fixing plate 36 and an elastic member 37. Specifically, the fixing plate 36 is installed in the installation slot 330, and is clamped and fixed to a side of the installation slot 330 away from the main drive gear 32. One end of the elastic member 37 is fixedly connected to the movable block 34, and the other end is fixedly connected to the fixing plate 36. The elastic member 37 is used to press the movable block 34 toward the side of the main drive gear 32, so that the movable block 34 is inserted into the linkage slot 320.

[0045] In one embodiment, a limiting portion 344 is provided at the bottom of the movable block 34, and a limiting platform is provided on the inner side wall of the mounting groove 330. The limiting portion 344 is used to cooperate with the limiting platform to prevent the movable block 34 from falling out of the mounting seat 331 during the lifting process.

[0046] In one embodiment, the inner side wall of the lower shell 12 protrudes toward the upper shell 11 to form a mounting portion 121, and the main drive gear 32 is mounted on the mounting portion 121. The mounting portion 121 is provided with a mounting opening 120 extending along the axis of the main drive gear 32. The outer side wall of the lower shell 12 is recessed toward the upper shell 11 to form a groove 122, and the eccentric disk 33 is mounted in the groove 122, and the mounting seat 331 is accommodated in the mounting opening 120. When the main drive gear 32 drives the eccentric disk 33 to rotate, the mounting seat 331 moves in the mounting opening 120.

[0047] See also Figure 5 , Figure 6 , Figures 9 to 12 In another embodiment, a fastener 123 is provided on the mounting portion 121. The fastener 123 extends along the rotation direction of the main drive gear 32. A first guide surface 1231 is provided at the bottom of the fastener 123, and a second guide surface 345 is provided on the movable block 34, and the first guide surface 1231 and the second guide surface 345 are provided correspondingly. When the main drive gear 32 rotates forward to the limit position, the first guide surface 1231 and the second guide surface 345 slide relative to each other, so that the fastener 123 presses the movable block 34, and gradually compresses the elastic member 37, so that the linkage groove 320 slides with the inclined surface 341, and then the movable block 34 exits the linkage groove 320 and maintains the exit state. In this embodiment, the first guide surface 1231 and the second guide surface 345 are mutually matched inclined surfaces, and the elastic member 37 is a spring. In other embodiments, the elastic member 37 can also be a spring sheet or a spring block.

[0048] In one embodiment, the movable block 34 is provided with a pressing groove 346 corresponding to the fastener 123, and the mounting seat 331 is provided with a avoiding groove 3310 corresponding to the fastener 121. When the main driving gear 32 rotates to the extreme position, the fastener 123 extends into the avoiding groove 3310 and the pressing groove 346 to cooperate with the second guide surface 345 to press the movable block 34.

[0049] In one embodiment, the sliding assembly 35 is assembled with the side of the eccentric disk 33 away from the main driving gear 32. The sliding assembly 35 can move relative to the lower shell 12 under the drive of the eccentric disk 33. An eccentric column 332 is provided on the side of the eccentric disk 33 close to the sliding assembly 35. The sliding assembly 35 includes: a sliding plate 351, a sliding seat 352 and a connecting plate 353. Specifically, an assembly groove 3511 is provided on the sliding plate 351. The sliding plate 351 is installed on the side of the sliding seat 352 close to the eccentric disk 33, and is assembled with the eccentric column 332 through the assembly groove 3511. The connecting plate 353 is installed on the side of the sliding seat 353 away from the eccentric disk 33.

[0050] See also Figures 7 to 12In one embodiment, the housing 1 further comprises a fixed cover 13, on which a plurality of clamping joints 131 are arranged, and on the lower housing 12, a clamping hole 124 corresponding to the clamping joint 131 is arranged, and the fixed cover 13 is detachably assembled with the lower housing 12 through the clamping cooperation between the clamping joint 131 and the clamping hole 124. A sliding groove 125 communicating with the groove 122 is further arranged on the outer side wall of the lower housing 12, and the sliding assembly 35 is installed in the sliding groove 125. After the fixed cover 13 is assembled with the lower housing 12, the sliding assembly 35 is confined in the sliding groove 125.

[0051] In one embodiment, a trigger column 3521 is protrudingly provided on one side of the sliding seat 352 close to the upper housing 11. A travel switch 5 is fixedly mounted on the inner side wall of the lower housing 12. The trigger column 3521 is used to abut against the travel switch 5 to trigger the travel switch 5.

[0052] See also Figure 1 to Figure 2 and Figures 6 to 9 In one embodiment, the cutting mechanism 4 includes: a cutting assembly 41 and an idle clamping assembly 42. The cutting assembly 41 is connected to the main driving gear 32. The idle clamping assembly 42 is fixedly connected to the connecting plate 353. When the main driving gear 32 drives the eccentric disk 33 to move, the sliding assembly 35 moves in the sliding groove 125 under the drive of the eccentric column 332, thereby driving the idle clamping assembly 42 connected to the connecting plate 353 to move toward the side of the cutting assembly 41, thereby clamping the can body.

[0053] In one embodiment, the cutting assembly 41 includes: a transmission shaft 411 and a cutting wheel 412. The transmission shaft 411 passes through the sliding assembly 35, the eccentric wheel 33 and the main driving gear 32, and is fixedly assembled with the main driving gear 32, so that the transmission shaft 411 rotates synchronously with the main driving gear 32. A portion of the transmission shaft 411 passes through the lower shell 12, and the cutting wheel 412 is arranged on the outside of the shell 1 and is fixedly connected to the portion of the transmission shaft 411 passing through the lower shell 12. The cutting wheel 412 can rotate synchronously with the transmission shaft 411, thereby performing a cutting operation on the tank body.

[0054] In one embodiment, the idle clamping assembly 42 includes: a connecting shaft 421, a fastener 422 and an idle wheel 423. A connecting plate 353 is provided at one end of the connecting shaft 421 to cooperate with the fastener 422, so that the connecting shaft 421 is fixedly connected to the connecting plate 353 and can move synchronously with the connecting plate 353. The idle wheel 423 is located on the outer side of the housing 1 and is sleeved on the connecting shaft 421. The idle wheel 423 can move toward the side of the cutting wheel 412 and cooperate with the cutting wheel 412 to clamp the tank body. When the cutting wheel 412 performs a cutting operation, the idle wheel 423 presses against the outer wall of the tank body to cooperate with the cutting wheel 412 to cut the tank body. In this embodiment, the fastener 422 is a screw. In other embodiments, the fastener 422 can also be a bolt, a rivet, etc., as long as the connecting shaft 421 and the connecting plate 353 can be fixedly assembled.

[0055] In one embodiment, the idle clamping assembly 42 may not be provided with the fastener 422 , and in this case, the connecting shaft 421 is directly integrally formed with the connecting plate 353 or fixed by welding.

[0056] In one embodiment, a buffer ring 4231 is provided on the outer side wall of the idle wheel 423 , and the buffer ring 4231 is used to press against the tank body when the cutting wheel 412 performs a cutting operation.

[0057] It should be noted that when the cutting operation is performed, the buffer ring 4231 is deformed under pressure, which can reduce the height of the can opener body tilting backward during cutting, so that the extrusion between the cutting wheel 412 and the can body is in a slight state, thereby reducing the load of the cutting wheel 412 during the cutting process; on the other hand, it can increase the force area between the idle wheel 423 and the can body, reduce the indentation caused by the cutting wheel 412 on the can body during the cutting process, thereby further reducing the damage to the can body; in addition, the contact area between the idle wheel 423 and the can body is increased, which can increase the friction between the idle wheel 423 and the can body, thereby preventing the idle wheel 423 from slipping. Avoid cutting burrs and iron wires, and also play a buffering effect in places where the can body is unevenly packaged to avoid damage to the cutting knife.

[0058] When the idle wheel is not provided with a buffer ring 4231, the spacing between the cutting wheel 412 and the idle wheel 423 is fixed. When the can body is uneven, either the cutting wheel 412, the idle wheel 423 and the can body will slip, or the cutting wheel 412 and the idle wheel 423 will be squeezed. In the long run, the internal mechanical structure of the can opener will be damaged and the service life will be reduced. The buffer ring 4231 can solve the above problem.

[0059] In one embodiment, an annular groove 4232 is provided on the outer wall of the idler wheel 423, a portion of the buffer ring 4231 is installed in the annular groove 4232, and another portion protrudes from the outer wall of the idler wheel 423. Such a configuration can prevent the buffer ring 4231 from falling off the idler wheel 423.

[0060] In one embodiment, the material of the buffer 4231 is a material with elastic deformation ability, including but not limited to rubber, silicone, elastic plastic, etc.

[0061] It should be noted that, when in the initial position of forward rotation, the movable block 34 rises under the action of the spring thrust, and the movable block 34 on the eccentric disk 33 is inserted into the linkage groove 320 of the main driving gear 32. At this time, the first vertical surface 342 of the movable block 34 is tightly attached to the linkage groove 320 and cannot slide. Therefore, when the main driving gear 32 rotates forward, the eccentric disk 33 is driven to rotate forward; when the eccentric disk 33 rotates to contact the fastener 123 on the mounting portion 121, the fastener 123 will pull and press the movable block 34 to move downward. At this time, the first vertical surface 342 of the movable block 34 is still tightly attached to the linkage groove 311, but the fastener 123 is about to pull and press the movable block 34 downward. The contact part gradually decreases, and the eccentric disk 33 is still driven to rotate forward; when the main driving gear 32 continues to rotate forward, the movable block 34 and the eccentric disk 33 rotate forward to the root of the fastener 123, and the fastener 123 has pressed the movable block 34 to move downward. At this time, only the inclined surface 341 of the movable block 34 is in contact with the groove of the main driving gear 32, and the linkage groove 320 on the main driving gear 32 slides over the inclined surface 341 of the movable block 34, and the movable block 34 and the eccentric disk 33 stop rotating forward with the main driving gear 32; in this way, the main driving gear 32 continues to rotate forward while the eccentric disk 33 is fixed in one position, thereby realizing the can opening function. When the can opening is completed and the knife needs to be retracted, the main driving gear 32 reverses. At this time, the second vertical surface 343 of the movable block 34 is tightly attached to the linkage groove 320, and the two are in vertical contact and cannot slide. Therefore, the movable block 34 and the eccentric disk 33 reverse together with the main driving gear 32; when the movable block 34 is separated from the fastener 123, the movable block 34 continues to move upward under the action of the spring force, the contact area is larger, and the two are more unable to slide, and the movable block 34 and the eccentric disk 34 continue to reverse with the main driving gear 32; until the travel switch 5 is encountered and the power is cut off and stopped, returning to the initial position, completing a cycle.

[0062] The above is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A can opener, comprising a housing, a power mechanism, a transmission mechanism, a sliding assembly and a cutting mechanism, characterized in that: The sliding assembly is connected and linked to the transmission mechanism, and the cutting mechanism includes: a cutting assembly and an idle clamping assembly, the cutting assembly is connected to the transmission mechanism, and the idle clamping assembly is connected to the sliding assembly. Under the drive of the transmission mechanism, the sliding assembly drives the idle clamping assembly away from or close to the cutting assembly to cooperate with the cutting assembly to loosen or clamp the can body; The idler clamping assembly includes: a connecting shaft and an idler wheel, one end of the connecting shaft is connected to the sliding assembly, and the other end extends out of the shell, the idler wheel is located outside the shell and is sleeved on the connecting shaft, and a buffer ring is provided on the outer side wall of the idler wheel. When the cutting assembly performs a cutting operation, the buffer ring is used to press against the tank body.

2. The can opener according to claim 1, characterized in that: An annular groove is arranged on the outer side wall of the idler wheel, a part of the buffer ring is installed in the annular groove, and another part protrudes from the outer side wall of the idler wheel.

3. The can opener according to claim 1, characterized in that: The buffer ring is made of a material with elastic deformation capability.

4. The can opener according to any one of claims 1 to 3, characterized in that: The transmission mechanism and the power mechanism are both arranged in the housing, and the transmission mechanism comprises: a gear set, mounted on the inner side wall of the housing and rotatable relative to the inner side wall, the gear set being connected to the power output end of the power mechanism and used for transmitting the torque output by the power mechanism; A main driving gear is rotatably mounted on the inner side wall of the housing, the main driving gear is meshed with the gear set to transmit torque to the cutting mechanism, and a linkage groove is provided on the end surface of the main driving gear facing the cutting mechanism; an eccentric disk, arranged outside the housing and rotatably assembled with the housing, the eccentric disk being coaxially arranged with the main driving gear; and, The movable block can be lifted and lowered on the eccentric disk, and the movable block is used to insert into or withdraw from the linkage groove to make the eccentric disk and the main driving gear linked or stop being linked.

5. The can opener according to claim 4, characterized in that: The movable block is provided with an inclined surface, a first vertical surface and a second vertical surface on a side close to the main driving gear, and the first vertical surface is parallel to the second vertical surface; When the main driving gear rotates forward, the linkage groove abuts against the first vertical surface to drive the eccentric disk to rotate forward; When the main driving gear rotates forward beyond the limit position, the linkage groove and the inclined surface slide relative to each other, so that the movable block withdraws from the linkage groove to stop driving the eccentric disk to rotate forward; when the main driving gear rotates reversely, the linkage groove abuts against the second vertical surface to drive the eccentric disk to reverse.

6. The can opener according to claim 5, characterized in that: The eccentric disk is provided with a mounting seat, and the mounting seat is provided with a mounting groove which penetrates the mounting seat and the eccentric disk along the axis of the main driving gear, and the movable block is installed in the mounting groove.

7. The can opener according to claim 6, characterized in that: The transmission mechanism also includes: A fixing plate is installed in the installation slot and is fixedly engaged with a side of the installation slot away from the main driving gear; and An elastic member, one end of which is connected to the movable block, and the other end of which is connected to the fixed plate. The elastic member is used to press the movable block toward one side of the main driving gear so that the movable block is inserted into the linkage groove.

8. The can opener according to claim 7, characterized in that: The shell is provided with a mounting opening, the mounting seat is installed in the mounting opening, and when the eccentric disk rotates, the mounting seat is driven to move in the mounting opening; the shell is provided with a fastener, and the fastener is used to suppress the movable block and compress the elastic member when the main driving gear rotates forward beyond the limit position, so that the linkage groove and the inclined surface slide relative to each other.

9. The can opener according to claim 8, characterized in that: The fastener extends along the rotation direction of the main driving gear, a first guide surface is arranged at the bottom of the fastener, a second guide surface corresponding to the first guide surface is arranged on the movable block, and when the main driving gear rotates to the extreme position, the fastener presses the movable block by making the first guide surface and the second guide surface slide relative to each other.

10. The can opener according to claim 4, characterized in that: A plurality of linkage grooves are provided, and the plurality of linkage grooves are evenly distributed along the rotation direction of the main driving gear.

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