Electric can opener

Abstract

The utility model provides an electric can opener which comprises a cutting wheel, a cutting knife, a driving wheel, a main shaft, an eccentric part, a movable part and an idle wheel, the cutting wheel, the driving wheel and the eccentric part are all arranged on the main shaft in a sleeved mode, the driving wheel drives the cutting wheel to rotate through the main shaft, the eccentric part is movably connected with the movable part, and the cutting knife is connected to the movable part. The driving wheel can drive the movable part to do linear reciprocating motion so as to drive the cutting knife to be close to or away from the cutting wheel, the idle wheel is arranged on one side of the driving wheel and the eccentric part, and the driving wheel drives the eccentric part to rotate through the idle wheel; an elastic positioning ball and a groove are arranged between the eccentric part and the driving wheel, and one end of the elastic positioning ball can be embedded into the groove, so that the eccentric part can move along with the driving wheel; the eccentric part is driven to rotate through dual drive, and in-place feeding and successful cutting are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of can opening, and particularly relates to an electric can opener. Background Art

[0002] Existing electric can openers generally include an electric motor, a cutting wheel, a cutting knife, a driving wheel, a main shaft, an eccentric wheel and a movable plate. The driving wheel, the eccentric wheel and the cutting knife are all sleeved on the main shaft. A spring and a glass bead are arranged on one side of the driving wheel facing the eccentric wheel, and a concave pit is correspondingly arranged on the end face of the eccentric wheel. When feeding or retracting the knife, the glass bead can fall into the concave pit. While the electric motor drives the cutting wheel to rotate through the driving wheel and the main shaft, the eccentric wheel can rotate following the driving wheel, and then drives the movable plate and the cutting knife thereon to perform a linear reciprocating motion, so that the cutting knife approaches or moves away from the cutting wheel; during cutting, the glass bead slips on the end face of the eccentric wheel, the eccentric wheel remains stationary, and the cutting knife and the cutting wheel maintain a state of clamping the edge of the can until cutting is completed.

[0003] In the existing electric can opener, the driving wheel drives the eccentric wheel to rotate through a single driving mode. During the feeding process, it is easy to cause the eccentric wheel to rotate out of position due to slipping, resulting in problems such as the cutting knife not feeding in place or cutting failure. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an electric can opener that drives an eccentric member to rotate through dual driving to ensure in-place feeding and successful cutting.

[0005] To achieve the above purpose, the utility model provides an electric can opener, which includes a cutting wheel, a cutting knife, a driving wheel, a main shaft, an eccentric member, a movable member, an idle wheel and a first housing. The cutting wheel, the driving wheel and the eccentric member are all sleeved on the main shaft. The driving wheel drives the cutting wheel to rotate through the main shaft. The eccentric member is movably connected to the movable member, and the cutting knife is connected to the movable member. When the eccentric member rotates around the main shaft, it can drive the movable member to perform a linear reciprocating motion, and then drive the cutting knife to approach or move away from the cutting wheel. The idle wheel is arranged on one side of the driving wheel and the eccentric member, and the driving wheel drives the eccentric member to rotate through the idle wheel; an elastic positioning bead and a groove are arranged between the eccentric member and the driving wheel. One end of the elastic positioning bead can be embedded in the groove, so that the eccentric member can move following the driving wheel; the first housing is provided with an installation groove, and a first annular flange portion and a first avoidance hole are arranged in the installation groove. The middle part of the main shaft is arranged in the first annular flange portion, the driving wheel and the eccentric member are respectively arranged on the inner and outer sides of the installation groove, and the elastic positioning bead is arranged in the first avoidance hole and can move relatively in the first avoidance hole.

[0006] It can be seen from the above scheme that by simultaneously arranging the idler wheel and the elastic positioning bead, when advancing and retracting the knife, the active wheel drives the eccentric member to rotate through the idler wheel and the elastic positioning bead, ensuring that the eccentric member rotates into place and the cutting knife advances into place, which is beneficial to ensure that the cutting knife can successfully cut the edge of the can and avoid cutting failure; by arranging the first annular flange portion on the first shell for positioning the main shaft, it is beneficial to ensure that the main shaft will not be offset during the cutting process, avoiding the main shaft and the cutting wheel from being stuck or causing cutting failure due to their position offset.

[0007] A further solution is that the groove includes a straight groove portion and an arc groove portion which are interconnected, and the straight groove portion is arranged close to the groove opening of the groove.

[0008] It can be seen from the above scheme that by setting the straight groove portion, when the telescopic ball portion of the elastic positioning bead is embedded in the groove, the straight groove portion can increase the resistance of the telescopic ball portion to escape from the groove, thereby avoiding the elastic positioning bead from slipping during the feeding and retracting process.

[0009] A further solution is that a hollow protrusion is provided on the side of the eccentric member facing the driving wheel, the protrusion is arranged in the first avoidance hole, the elastic positioning bead is arranged in the protrusion, and the telescopic ball portion of the elastic positioning bead protrudes from the end surface of the protrusion; a plurality of grooves are provided on the side of the driving wheel facing the eccentric member, the plurality of grooves are arranged along the circumference of the driving wheel, some of the grooves are exposed in the first avoidance hole, and the elastic positioning bead can be embedded in any one of the grooves.

[0010] It can be seen from the above scheme that the hollow protrusion is provided to install and fix the elastic positioning beads; the utility model adopts an integrated elastic positioning bead, which has the advantage of convenient installation.

[0011] A further solution is that the number of the protrusions is set to be a plurality, the number of the elastic positioning beads is equal to the number of the protrusions, and the elastic positioning beads and the protrusions are arranged in a one-to-one correspondence.

[0012] It can be seen from the above scheme that the number of the protrusions and the elastic positioning beads can be set to one, two or more than three. When the number is greater, the power used to drive the eccentric member to rotate is greater.

[0013] A further solution is that the eccentric part includes a first step portion, a second step portion, an eccentric portion, a third step portion and a first mounting hole, the first mounting hole sequentially penetrates the first step portion, the second step portion, the eccentric portion and the third step portion, the first step portion, the second step portion and the third step portion are all coaxially arranged with the first mounting hole, the eccentric portion is eccentrically arranged with the first mounting hole, a fixed column portion and a tooth portion are arranged on the circumference of the first step portion, the tooth portion is meshed with the idler wheel, an elastic part is arranged on the fixed column portion, and the protrusion is arranged on the first step portion and close to the fixed column portion.

[0014] As can be seen from the above solution, by providing a tooth portion for meshing and connecting with the driving wheel of the idler wheel, the eccentric member is driven to rotate; by providing an elastic member, after the eccentric member drives the elastic member to rotate, the elastic member can abut against the abutting portion of the first housing and be compressed and deformed, storing energy for the reverse rotation of the eccentric member during subsequent tool withdrawal, which is beneficial to ensuring smooth tool withdrawal.

[0015] A further solution is that an abutting portion and a second avoidance hole are further provided in the installation groove. The second avoidance hole is provided outside the first end of the first avoidance hole, and the abutting portion is provided outside the second end of the second avoidance hole. The abutting portion can abut against one end of the elastic member far from the fixed column portion.

[0016] A further solution is that a sleeve is provided inside the first annular flange portion, the middle part of the main shaft is arranged inside the sleeve, and the sleeve is in positioning cooperation with the main shaft.

[0017] As can be seen from the above solution, by providing the sleeve, the direct contact between the main shaft and the inner wall of the first annular flange portion is avoided, which is beneficial to preventing wear of the first annular flange portion.

[0018] A further solution is that the idler wheel includes a driving wheel and a driven wheel arranged coaxially. The driving wheel is meshed and connected with the driving wheel, and a part of the driven wheel is embedded inside the second avoidance hole and is meshed and connected with the tooth portion of the eccentric member.

[0019] A further solution is that the electric can opener further includes a double-ring member. First connection holes and second connection holes are respectively provided at both ends of the double-ring member. The first connection hole is sleeved on the eccentric portion of the eccentric member, and a second annular flange portion is provided on the movable member. The second connection hole is sleeved on the second annular flange portion; the eccentric member drives the movable member and the cutting wheel thereon to linearly reciprocate along a first direction through the double-ring member, and the first direction is parallel to the connection line between the cutting wheel and the cutting tool.

[0020] As can be seen from the above solution, through the above arrangement, it is beneficial to convert the eccentric motion of the eccentric member into the linear reciprocating motion of the movable member and the cutting tool, thereby realizing the tool feeding and tool withdrawal of the cutting tool.

[0021] A further solution is that the electric can opener further includes a rotary driving device and a transmission assembly. The rotary driving device drives the driving wheel to rotate through the transmission assembly. Description of the Drawings

[0022] Figure 1 is the structural diagram of an embodiment of the present invention.

[0023] Figure 2 is the exploded view of an embodiment of the present invention after removing the second housing.

[0024] Figure 3 is the cross-sectional view of an embodiment of the present invention after removing the second housing.

[0025] Figure 4 It is an exploded view of the first housing, the eccentric member, and the movable member in the embodiment of the present utility model.

[0026] Figure 5 It is a structural diagram of the eccentric member and the elastic member in the embodiment of the present utility model.

[0027] Figure 6 It is an exploded view of the eccentric member and the elastic positioning beads in the embodiment of the present utility model.

[0028] Figure 7 It is a structural diagram of the driving wheel in the embodiment of the present utility model.

[0029] Figure 8 It is a cross-sectional view of the driving wheel in the embodiment of the present utility model.

[0030] Figure 9 is Figure 8 an enlarged view of portion A in

[0031] Figure 10 It is an exploded view of the fixed seat, the eccentric member, and the movable member in the embodiment of the present utility model.

[0032] Figure 11 It is a structural diagram of the movable member in the embodiment of the present utility model.

[0033] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments. Specific Embodiments

[0034] Refer to Figures 1 to 3 , the electric can opener provided in this embodiment includes a first housing 10, a second housing 20, a cutting wheel 1, a cutting knife 2, a driving wheel 3, a main shaft 4, an eccentric member 5, a movable member 6, an idler wheel 7, a rotary driving device 8, and a transmission assembly 9. A receiving space is formed between the first housing 10 and the second housing 20, and the driving wheel 3, the main shaft 4, the eccentric member 5, the rotary driving device 8, and the transmission assembly 9 are all disposed in the receiving space. The cutting wheel 1, the cutting knife 2, and the movable member 6 are all disposed outside the first housing 10. The cutting wheel 1 and the cutting knife 2 are arranged in a first direction, and the cutting wheel 1 is located at the rear end of the cutting knife 2. A start button (not shown in the figure) is provided on the second housing 20, and the start button is electrically connected to the rotary driving device 8.

[0035] The cutting wheel 1, the driving wheel 3 and the eccentric member 5 are all sleeved on the main shaft 4, and the eccentric member 5 is arranged between the cutting wheel 1 and the driving wheel 3. Both the driving wheel 3 and the cutting wheel 1 are fixedly connected to the main shaft 4. The rotary driving device 8 drives the driving wheel 3 to rotate through the transmission assembly 9, and the driving wheel 3 drives the cutting wheel 1 to rotate through the main shaft 4. The eccentric member 5 is in clearance fit with the main shaft 4, and the eccentric member 5 can swing around the main shaft 4 by a preset angle, and the preset angle is less than 360°. The eccentric member 5 is movably connected to the movable member 6, and the cutting tool 2 is connected to the movable member 6 and can move synchronously with the movable member 6. When the eccentric member 5 rotates around the main shaft 4, it can drive the movable member 6 to perform a linear reciprocating motion, and then drive the cutting tool 2 to approach or move away from the cutting wheel 1, so as to realize the feeding or retracting of the cutting tool 2.

[0036] The idle wheel 7 is arranged on one side of the driving wheel 3 and the eccentric member 5, and the driving wheel 3 drives the eccentric member 5 to rotate through the idle wheel 7. Specifically, the idle wheel 7 includes a driving wheel 71 and a driven wheel 72 arranged coaxially. The driving wheel 71 is meshed and connected with the driving wheel 3, and the driven wheel 72 is connected with the eccentric member 5, so that the eccentric member 5 can rotate following the driving wheel 3.

[0037] An elastic positioning bead 30 and a groove 31 are arranged between the eccentric member 5 and the driving wheel 3. One end of the elastic positioning bead 30 can be embedded into the groove 31, so that the eccentric member 5 can rotate following the driving wheel 3.

[0038] In this embodiment, when the driving wheel 3 rotates, on the one hand, the driving wheel 3 drives the eccentric member 5 to rotate through the idle wheel 7, and on the other hand, it also drives the eccentric member 5 to rotate through the cooperation of the elastic positioning bead 30 and the groove 31, realizing the function of double drive, ensuring that the eccentric member 5 can rotate smoothly and reach the position, and further ensuring that the cutting tool 2 feeds in place and retracts in place.

[0039] Combined Figures 5 to 9 , the eccentric member 5 includes a first stepped portion 51, a second stepped portion 52, an eccentric portion 53, a third stepped portion 54 and a first mounting hole 55. The first mounting hole 55 sequentially penetrates through the first stepped portion 51, the second stepped portion 52, the eccentric portion 53 and the third stepped portion 54; the first stepped portion 51, the second stepped portion 52 and the third stepped portion 54 are all coaxially arranged with the first mounting hole 55, and the eccentric portion 53 is eccentrically arranged with the first mounting hole 55. A fixing column portion 511 and a tooth portion 512 are arranged on the circumference of the first stepped portion 51. The tooth portion 512 is meshed and connected with the driven wheel 72 of the idle wheel 7; the fixing column portion 511 extends along the tangential direction of the first stepped portion 51, and an elastic member 56 is arranged on the fixing column portion 511. The elastic member 56 is preferably a spring.

[0040] The elastic positioning bead 30 can be arranged on the eccentric member 5, and the groove 31 is arranged on the driving wheel 3. Or, the elastic positioning bead 30 can be arranged on the driving wheel 3, and the groove 31 is arranged on the eccentric member 5. This embodiment preferably adopts the former. Specifically:

[0041] On one side of the eccentric member 5 facing the driving wheel 3, there is a hollow protruding portion 57. The protruding portion 57 is arranged on the side of the first stepped portion 51 facing away from the second stepped portion 52 and is disposed close to the fixed column portion 511. The elastic positioning bead 30 is arranged inside the protruding portion 57, and the telescopic spherical portion of the elastic positioning bead 30 protrudes from the end face of the protruding portion 57. The elastic positioning bead 30 includes a hollow housing, a glass bead, and a spring. The glass bead is arranged at one end of the hollow housing and partially protrudes from the end face of the hollow housing. The glass bead is the telescopic spherical portion. The spring elastically abuts between the inside of the hollow housing and the glass bead, so that the glass bead can elastically retract into the hollow housing. The elastic positioning bead 30 can be directly purchased as a whole or pre-assembled into a whole, which is convenient for the assembly of the electric can opener.

[0042] On one side of the driving wheel 3 facing the eccentric member 5, a plurality of grooves 31 are formed. The plurality of grooves 31 are arranged at equal intervals along the circumferential direction of the driving wheel 3. The elastic positioning bead 30 can be embedded in any one of the grooves 31.

[0043] The number of the protruding portions 57 is set to several. In this embodiment, three protruding portions 57 are taken as an example. The three protruding portions 57 are arranged along the circumferential direction of the first stepped portion 51 and are fixedly connected, or a preset distance is provided between two adjacent protruding portions 57. The number of the elastic positioning beads 30 is equal to the number of the protruding portions 57, and the elastic positioning beads 30 and the protruding portions 57 are arranged in one-to-one correspondence.

[0044] In this embodiment, the groove 31 includes a straight groove portion 311 and an arc groove portion 312 that communicate with each other. The straight groove portion 311 is close to the groove opening of the groove 31, and the groove wall of the straight groove portion 311 is arranged close to the vertical. When the glass bead of the elastic positioning bead 30 is embedded in the groove 31, the groove wall of the straight groove portion 311 can increase the difficulty of the glass bead moving along the groove wall, that is, increase the difficulty of the glass bead separating from the groove 31, and avoid the elastic positioning bead 30 separating from the groove 31 during the process of feeding or retracting the tool.

[0045] Combined Figures 2 to 4, one end of the first housing 10 is provided with an installation groove 101. The installation groove 101 opens a notch on the side facing away from the second housing 20, and the bottom of the installation groove 101 is arranged opposite to its notch. Inside the installation groove 101, there are a first annular flange portion 102, an abutting portion 103, a first avoidance hole 104, and a second avoidance hole 105; a second installation hole 1021 is opened inside the first annular flange portion 102, and the middle part of the main shaft 4 is inserted into the second installation hole 1021; the first avoidance hole 104 penetrates through the bottom of the installation groove 101 and extends in an arc along the circumferential direction, and both ends of the first avoidance hole 104 extend to the opposite sides of the first annular flange portion 102, for avoiding the movement track of the protruding portion 57. The second avoidance hole 105 is arranged outside the first end of the first avoidance hole 104, and a part of the driven wheel 72 can be embedded into the second avoidance hole 105, for meshing with the tooth portion 512 of the eccentric member 5. The abutting portion 103 is arranged outside the second end of the second avoidance hole 105, the abutting portion 103 protrudes from the bottom of the installation groove 101, and the abutting portion 103 can abut against one end of the elastic member 56 away from the fixed column portion 511.

[0046] The eccentric member 5 is arranged on the inward side of the bottom of the installation groove 101, the tooth portion 512 of the first stepped portion 51 meshes with the driven wheel 72, and the elastic member 56 can move between the abutting portion 103 and the driven wheel 72. In Figure 4 this case, when the driven wheel 72 drives the eccentric member 5 to rotate counterclockwise, the elastic member 56 approaches the abutting portion 103 and elastically abuts against the abutting portion 103, and at this time the cutting tool 2 feeds; when the cutting is completed, under the elastic action of the elastic member 56, the eccentric member 5 is forced to rotate in the reverse direction to ensure the smooth retraction of the cutting tool 2.

[0047] In order to ensure that the position of the cutting wheel 1 remains unchanged during rotation, a sleeve 106 is coaxially arranged in the second installation hole 1021, preferably a metal sleeve. The middle part of the main shaft 4 is arranged inside the sleeve 106, and the main shaft 4, the first annular flange portion 102, the second installation hole 1021, and the sleeve 106 are coaxially arranged. In this embodiment, through the positioning cooperation between the sleeve 106 and the main shaft 4, it is beneficial to fix the main shaft 4, prevent the main shaft 4 from shifting in position during rotation, and further ensure that the position of the cutting wheel 1 remains unchanged, which is beneficial to ensuring an appropriate gap between the cutting tool 2 and the cutting wheel 1 during cutting, so that the cutting can proceed smoothly.

[0048] The eccentric member 5 is disposed on the inner side of the bottom of the mounting groove 101, and the driving wheel 3 is disposed on the outer side of the bottom of the mounting groove 101. That is, the bottom of the mounting groove 101 is disposed between the eccentric member 5 and the driving wheel 3. By means of the limiting effect of the bottom of the mounting groove 101, it can ensure that an appropriate axial distance is always maintained between the eccentric member 5 and the driving wheel 3. All three protruding portions 57 are disposed in the first avoidance hole 104 and can move along the extending direction of the first avoidance hole 104; a part of the groove 31 is exposed in the first avoidance hole 104, which is convenient for connecting with the elastic positioning beads 30 in the protruding portion 57.

[0049] Combined with Figure 3 , Figure 4 , Figure 10 and Figure 11 , the movable member 6 is disposed at the notch of the mounting groove 101 of the first housing 10. The mounting groove 101 is provided with side walls on opposite sides of the notch. The side walls extend in the first direction and are used to abut against the side walls of the movable member 6, which can play a guiding role, so that the movable member 6 can only perform a linear reciprocating motion along the first direction. The first direction is parallel to the connection line of the cutting wheel 1 and the cutting knife 2.

[0050] The electric can opener further includes a fixed seat 50 and a double-ring member 40. The driving wheel 3 is disposed in the fixed seat 50. First connection holes 401 and second connection holes 402 are respectively formed at both ends of the double-ring member 40. The diameter of the first connection hole 401 is larger than that of the second connection hole 402. The first connection hole 401 is sleeved on the eccentric portion 53 of the eccentric member 5, and the first connection hole 401 is in clearance fit with the eccentric portion 53; a second annular flange portion 61 is provided at one end of the movable member 6. The second connection hole 402 is sleeved on the second annular flange portion 61, and the second connection hole 402 is in clearance fit with the second annular flange portion 61. A limiting groove 62 and a third avoidance hole 63 are further provided on the movable member 6. The notch of the limiting groove 62 faces the second annular flange portion 61, and the third avoidance hole 63 is communicatively disposed in the limiting groove 62. The double-ring member 40 is disposed in the limiting groove 62. When the eccentric member 5 drives the double-ring member 40 to perform eccentric motion, the double-ring member 40 can abut against the groove wall of the limiting groove 62 and drive the movable member 6 and the cutting wheel 1 thereon to perform a linear reciprocating movement along the first direction.

[0051] In Figure 2 , the electric can opener further includes a rotary driving device 8 and a transmission assembly 9. The rotary driving device 8 is preferably a motor. The rotary driving device 8 drives the driving wheel 3 to rotate through the transmission assembly 9. The transmission assembly 9 includes a plurality of transmission gears. The plurality of transmission gears are disposed between the rotary driving device 8 and the driving wheel 3 and can transmit the driving force to the driving wheel 3, thereby driving the driving wheel 3 to rotate. The transmission assembly 9 is a prior art and will not be described in detail herein.

[0052] The working process of this embodiment is as follows:

[0053] First, place the edge of the can between the cutting wheel 1 and the cutting knife 2; then, press the start button, and the rotary drive device 8 rotates forward, and drives the driving wheel 3 to rotate through the transmission assembly 9. The driving wheel 3 drives the cutting wheel 1 to rotate synchronously and in the same direction through the main shaft 4; during this process, the elastic positioning bead 30 can be embedded in the groove 31, and the driving wheel 3 drives the eccentric member 5 to rotate through the double driving mode of the idle wheel 7 and the elastic positioning bead 30 at the same time; then, the eccentric member 5 drives the movable member 6 to move backward linearly through the double-ring member 40, so that the cutting knife 2 on the movable member 6 approaches the cutting wheel 1, that is, the cutting knife 2 advances the knife to clamp the edge of the can.

[0054] Thereafter, it enters the cutting state. During this process, after the eccentric member 5 rotates in place, it remains stationary. The elastic positioning bead 30 can slip between multiple grooves 31, and at the same time, the idle wheel 7 slips with the tooth part 512 of the eccentric member 5 until the cutting is completed.

[0055] When the cutting is completed, the rotary drive device 8 rotates in the reverse direction and drives the driving wheel 3 to reverse through the transmission assembly 9. At this time, under the action of the elastic member 56, the eccentric member 5 rotates in the reverse direction to ensure that the tooth part 512 of the eccentric member 5 meshes with the idle wheel 7, and the reversely rotating idle wheel 7 continues to drive the eccentric member 5 to rotate in the reverse direction. At the same time, the elastic positioning bead 30 is embedded in the groove 31 again, and the eccentric member 5 is driven to rotate in the reverse direction through the double driving mode of the idle wheel 7 and the elastic positioning bead 30 to ensure that the movable member 6 moves forward linearly in place until the cutting knife 2 retracts the knife completely.

[0056] In summary, in the present utility model, by simultaneously arranging the idle wheel 7 and the elastic positioning bead 30, when advancing the knife and retracting the knife, the driving wheel 3 drives the eccentric member 5 to rotate through the double driving mode of the idle wheel 7 and the elastic positioning bead 30, ensuring that the eccentric member 5 rotates in place and the cutting knife 2 advances the knife in place, which is beneficial to ensuring that the cutting knife 2 can successfully cut the edge of the can and avoiding the situation of cutting failure.

[0057] Finally, it should be emphasized that the above is only the preferred embodiment of the present utility model and is not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An electric can opener, comprising a cutting wheel (1), a cutting knife (2), a driving wheel (3), a main shaft (4), an eccentric member (5) and a movable member (6). The cutting wheel (1), the driving wheel (3) and the eccentric member (5) are all sleeved on the main shaft (4). The driving wheel (3) drives the cutting wheel (1) to rotate through the main shaft (4). The eccentric member (5) is movably connected to the movable member (6). The cutting knife (2) is connected to the movable member (6). When the eccentric member (5) rotates around the main shaft (4), it can drive the movable member (6) to perform a linear reciprocating motion, thereby driving the cutting knife (2) to approach or move away from the cutting wheel (1). It is characterized in that: It further comprises an idle wheel (7) and a first housing (10). The idle wheel (7) is arranged on one side of the driving wheel (3) and the eccentric member (5). The driving wheel (3) drives the eccentric member (5) to rotate through the idle wheel (7); An elastic positioning bead (30) and a groove (31) are arranged between the eccentric member (5) and the driving wheel (3). One end of the elastic positioning bead (30) can be embedded in the groove (31), so that the eccentric member (5) can move following the driving wheel (3); The first housing (10) is provided with a mounting groove (101). The mounting groove (101) is provided with a first annular flange portion (102) and a first avoidance hole (104). The middle part of the main shaft (4) is arranged within the first annular flange portion (102). The driving wheel (3) and the eccentric member (5) are respectively arranged on the inner and outer sides of the mounting groove (101). The elastic positioning bead (30) is arranged within the first avoidance hole (104) and can move relatively within the first avoidance hole (104).

2. The electric can opener according to claim 1, characterized in that: The groove (31) comprises a straight groove portion (311) and an arc groove portion (312) that communicate with each other. The straight groove portion (311) is arranged close to the notch of the groove (31).

3. The electric can opener according to claim 1, characterized in that: A hollow protruding portion (57) is arranged on one side of the eccentric member (5) facing the driving wheel (3). The protruding portion (57) is arranged within the first avoidance hole (104). The elastic positioning bead (30) is arranged within the protruding portion (57). The telescopic spherical portion of the elastic positioning bead (30) protrudes from the end face of the protruding portion (57); A plurality of the grooves (31) are formed on one side of the driving wheel (3) facing the eccentric member (5). The plurality of grooves (31) are arranged in a circumferential direction of the driving wheel (3). Some of the grooves (31) are exposed within the first avoidance hole (104). The elastic positioning bead (30) can be embedded in any one of the grooves (31).

4. The electric can opener according to claim 3, characterized in that: The number of the protruding portions (57) is set to be several, the number of the elastic positioning beads (30) is equal to the number of the protruding portions (57), and the elastic positioning beads (30) and the protruding portions (57) are arranged in a one-to-one correspondence.

5. The electric can opener according to claim 3, wherein: The eccentric member (5) includes a first stepped portion (51), a second stepped portion (52), an eccentric portion (53), a third stepped portion (54), and a first mounting hole (55). The first mounting hole (55) sequentially penetrates through the first stepped portion (51), the second stepped portion (52), the eccentric portion (53), and the third stepped portion (54). The first stepped portion (51), the second stepped portion (52), and the third stepped portion (54) are all coaxially arranged with the first mounting hole (55). The eccentric portion (53) is eccentrically arranged with respect to the first mounting hole (55). A fixing post portion (511) and a tooth portion (512) are arranged on the circumference of the first stepped portion (51). The tooth portion (512) is meshed and connected with the idle gear (7). An elastic member (56) is arranged on the fixing post portion (511). The protruding portion (57) is arranged on the first stepped portion (51) and is disposed close to the fixing post portion (511).

6. The electric can opener according to claim 5, wherein: An abutting portion (103) and a second avoidance hole (105) are further arranged in the mounting groove (101). The second avoidance hole (105) is arranged outside the first end of the first avoidance hole (104). The abutting portion (103) is arranged outside the second end of the second avoidance hole (105). The abutting portion (103) can abut against one end of the elastic member (56) away from the fixing post portion (511).

7. The electric can opener according to claim 1, wherein: A sleeve (106) is arranged inside the first annular flange portion (102). The middle part of the main shaft (4) is arranged inside the sleeve (106). The sleeve (106) and the main shaft (4) are in positioning fit.

8. The electric can opener according to claim 6, wherein: The idle gear (7) includes a driving wheel (71) and a driven wheel (72) coaxially arranged. The driving wheel (71) is meshed and connected with the driving wheel (3). A part of the driven wheel (72) is embedded inside the second avoidance hole (105) and is meshed and connected with the tooth portion (512) of the eccentric member (5).

9. The electric can opener according to claim 1, wherein: The electric can opener further includes a double-ring member (40). First connection holes (401) and second connection holes (402) are respectively formed at both ends of the double-ring member (40). The first connection hole (401) is sleeved on the eccentric portion (53) of the eccentric member (5). A second annular flange portion (61) is arranged on the movable member (6). The second connection hole (402) is sleeved on the second annular flange portion (61); The eccentric member (5) drives the movable member (6) and the cutting wheel (1) thereon to linearly reciprocate in a first direction through the double-ring member (40), and the first direction is parallel to the connection line between the cutting wheel (1) and the cutting knife (2).

10. The electric can opener according to claim 1, wherein: The electric can opener further includes a rotary drive device (8) and a transmission assembly (9), and the rotary drive device (8) drives the driving wheel (3) to rotate through the transmission assembly (9).

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