Automatic can opening device

Abstract

An automatic can opening device, comprising: a shell (100); a driving mechanism (200), the driving mechanism (200) being arranged in the shell (100); a main shaft (300), rotatably passing through the shell (100), a driving gear (310) being provided at the end of the main shaft (300) located in the shell (100), the driving gear (310) being in transmitting connection with the driving mechanism (200) by means of a transmission mechanism (210), and a first cutting gear (350) being provided at the end of the main shaft (300) located outside the shell (100); an eccentric wheel (400), sleeved on the main shaft (300), mounting holes (320) being formed on the end surface of the driving gear (310) facing the eccentric wheel (400), an elastic member (330) being provided in each mounting hole (320), a glass bead (340) being provided at the end of each elastic member (330) facing the eccentric wheel (400), and hemispherical recesses (410) being formed at positions corresponding to the glass beads (340) on the end surface of the eccentric wheel (400); and a movable plate (500), slidably passing through the shell (100), a second cutting wheel (510) being provided on the side of the movable plate (500) located outside the shell (100), the eccentric wheel (400) being in transmitting connection with the movable plate (500), and the second cutting wheel (510) can be driven by the rotation of the eccentric wheel (400) to move close to or away from the first cutting gear (350).

Description

Automatic can opener Technical Field

[0001] This application relates to the field of can opener technology, and in particular to an automatic can opener. Background Technology

[0002] An electric can opener is an electrically powered device designed to easily and quickly open various cans. It is typically driven by an electric motor and equipped with appropriately sized and shaped can-opening blades. To use it, the user simply aligns the blades with the edge of the can, presses a button or switch, and the electric motor starts, driving the blades to cut along the edge of the can until it is fully open.

[0003] The retraction mechanism of an electric can opener refers to the automatic withdrawal of the blade after the can is opened, allowing the can opener to be removed from the can and stored safely. Existing electric can openers have retraction mechanisms that generate significant resistance during the opening process, resulting in high energy consumption. Furthermore, these mechanisms are prone to failure after a period of use, failing to effectively open and retract the blade, leading to a short lifespan for the electric can opener.

[0004] Summary of the Invention

[0005] The purpose of this application is to at least solve one of the technical problems existing in the prior art. To this end, this application proposes an automatic can opening device that can reduce the resistance generated by the retraction mechanism in the normal can opening process and improve the service life of the device.

[0006] An automatic can-opening device according to an embodiment of this application includes: a housing; a drive mechanism disposed within the housing; a main shaft rotatably mounted on the housing, with a drive wheel disposed at one end of the main shaft inside the housing, the drive wheel being connected to the drive mechanism via a transmission mechanism, and a first cutting wheel disposed at the other end of the main shaft outside the housing; and an eccentric wheel sleeved on the main shaft, with a mounting hole formed on the end face of the drive wheel facing the eccentric wheel, an elastic element disposed within the mounting hole, and a glass bead disposed at the end of the elastic element facing the eccentric wheel, the end face of the eccentric wheel corresponding to the position of the glass bead. The device has a semi-circular recess; a movable plate that slidably passes through the shell; a second cutting wheel is located on the side of the movable plate outside the shell; an eccentric wheel is connected to the movable plate; the rotation of the eccentric wheel can drive the second cutting wheel to approach and move away from the first cutting wheel; in the advance and retraction states, the glass bead is embedded in the recess, and the eccentric wheel rotates with the drive wheel to drive the second cutting wheel to approach and move away from the first cutting wheel; in the can-opening cutting state, the glass bead slips on the end face of the eccentric wheel, the eccentric wheel remains stationary, and the first and second cutting wheels maintain a state of clamping the edge of the can.

[0007] The automatic can-opening device according to the embodiments of this application has at least the following beneficial effects: This automatic can-opening device, by providing mounting holes on the drive wheel, placing elastic elements and glass beads in the mounting holes, and correspondingly providing recesses on the eccentric wheel, enables the drive wheel to drive the eccentric wheel to complete the feed and retraction actions, while simultaneously keeping the eccentric wheel stationary during cutting, thus keeping the first and second cutting wheels clamped to the edge of the can and completing the cutting action. The resistance between the glass beads and the end face with the recesses on the eccentric wheel is small, therefore, during normal cutting, it does not increase the load on the rotation of the drive wheel significantly, thereby reducing the cutting energy consumption of the automatic can-opening device, and also reducing the noise generated during cutting. Providing multiple compression springs to provide thrust to multiple glass beads effectively extends the service life of the automatic can-opening device and avoids the failure of the retraction function due to fatigue failure of a single spring.

[0008] According to some embodiments of this application, multiple mounting holes are provided, and the multiple mounting holes are evenly distributed along the circumference of the drive wheel. Each mounting hole is provided with an elastic element and a glass bead, and multiple semi-circular recesses are correspondingly provided on the end face of the eccentric wheel.

[0009] According to some embodiments of this application, a boss is provided on the side of the drive wheel near the eccentric wheel, and mounting holes are all provided on it.

[0010] According to some embodiments of this application, an annular disk is provided on the side of the eccentric wheel near the driving wheel, and a boss is disposed inside the annular disk.

[0011] According to some embodiments of this application, twelve recesses are provided.

[0012] According to some embodiments of this application, the elastic element is a compression spring.

[0013] According to some embodiments of this application, the transmission mechanism is a reduction gear set.

[0014] According to some embodiments of this application, the reduction gear set includes a first-stage gear, a second-stage gear, and a third-stage gear that mesh sequentially. The first-stage gear is connected to the drive mechanism, and the third-stage gear is connected to the drive wheel.

[0015] According to some embodiments of this application, the eccentric wheel and the movable plate are connected by a double ring plate, which converts the rotation of the eccentric wheel into the linear motion of the movable plate.

[0016] According to some embodiments of this application, the second cutting wheel is inclinedly mounted on a movable plate.

[0017] According to some embodiments of this application, the mounting hole is a blind hole.

[0018] According to some embodiments of this application, there are 6 blind holes.

[0019] According to some embodiments of this application, the mounting hole is a through hole, and a stop member is detachably mounted on the upper end of the drive wheel. The stop member is used to block the opening at the upper end of the through hole.

[0020] According to some embodiments of this application, four through holes are provided.

[0021] According to some embodiments of this application, the depth of the pit is less than half the diameter of the glass bead.

[0022] According to some embodiments of this application, the depth of the pit is less than one-third of the diameter of the glass bead.

[0023] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0024] The present application will be further described below with reference to the accompanying drawings and embodiments:

[0025] Figure 1 is a schematic diagram of the structure of the automatic can opener according to an embodiment of this application;

[0026] Figure 2 is a structural schematic diagram of Figure 1 from another perspective;

[0027] Figure 3 is a schematic diagram of the structure of the automatic can opening device according to an embodiment of this application, showing the cooperation between the main shaft and the movable plate.

[0028] Figure 4 is a side view of the main shaft in Figure 3;

[0029] Figure 5 is an exploded view of the drive wheel in Figure 4;

[0030] Figure 6 is a schematic diagram of the eccentric wheel in Figure 4;

[0031] Figure 7 is a schematic diagram of the drive wheel in another embodiment of this application;

[0032] Figure 8 is an exploded view of the drive wheel in another embodiment of this application.

[0033] Figure label:

[0034] Casing 100;

[0035] Drive mechanism 200; transmission mechanism 210; primary gear 211; secondary gear 222; tertiary gear 223;

[0036] Main spindle 300; drive wheel 310; mounting hole 320; elastic element 330; glass bead 340; first cutting wheel 350; boss 360; blind hole 370; through hole 380; abutment 390;

[0037] Eccentric wheel 400; recess 410; circular disc 420; double ring plate 430;

[0038] Movable plate 500; Second cutting wheel 510. Detailed Implementation

[0039] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0040] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0041] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0042] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0043] An automatic can-opening device according to an embodiment of this application is described with reference to Figures 1 to 6.

[0044] As shown in Figures 1 to 6, the automatic can-opening device according to an embodiment of this application includes: a housing 100; a drive mechanism 200 disposed within the housing 100; a main shaft 300 rotatably mounted on the housing 100, with a drive wheel 310 disposed at one end of the main shaft 300 inside the housing 100, the drive wheel 310 being connected to the drive mechanism 200 via a transmission mechanism 210, and a first cutting wheel 350 disposed at the other end of the main shaft 300 outside the housing 100; and an eccentric wheel 400 sleeved on the main shaft 300, with a mounting hole 320 on the end face of the drive wheel 310 facing the eccentric wheel 400, an elastic element 330 disposed within the mounting hole 320, and a glass bead 340 disposed at one end of the elastic element 330 facing the eccentric wheel 400. A semi-circular recess 410 is provided on the end face of the 0 corresponding to the position of the glass bead 340; a movable plate 500 is slidably mounted on the housing 100, and a second cutting wheel 510 is provided on the side of the movable plate 500 outside the housing 100; an eccentric wheel 400 is connected to the movable plate 500 in a transmission manner, and the rotation of the eccentric wheel 400 can drive the second cutting wheel 510 to approach and move away from the first cutting wheel 350; in the advance and retraction states, the glass bead 340 is embedded in the recess 410, and the eccentric wheel 400 rotates with the drive wheel 310 to drive the second cutting wheel 510 to approach and move away from the first cutting wheel 350; in the can-opening cutting state, the glass bead 340 slips on the end face of the eccentric wheel 400, the eccentric wheel 400 remains stationary, and the first cutting wheel 350 and the second cutting wheel 510 maintain a state of clamping the edge of the can.

[0045] As shown in Figures 1 and 2, a drive mechanism 200 is provided at the rear end of the housing 100. The drive mechanism 200 is an electric motor. The output shaft of the drive mechanism 200 is connected to the reduction gear shaft. The metal pinion, first-stage gear 211, second-stage gear 222, and third-stage gear 223 on the output shaft of the electric motor mesh with the drive wheel 310 in sequence, so that the electric motor ultimately drives the main shaft 300 to rotate. The rotation of the main shaft 300 drives the first cutting wheel 350 to rotate, thus realizing the low-speed, high-torque rotation action that meets the cutting conditions of the can opener.

[0046] As shown in Figures 3 to 6, a boss 360 is provided at the lower end of the drive wheel 310. Six mounting holes 320 are evenly distributed along the circumference of the main shaft 300 on the boss 360. The six mounting holes 320 are all arranged along the vertical direction of the main shaft 300 and their openings face downwards. Each mounting hole 320 has an elastic element 330 arranged along the vertical direction. A glass bead 340 is provided at the lower end of the elastic element 330. The elastic element 330 is a compression spring. The eccentric wheel 400 and the annular disk 420 at the upper end of the eccentric wheel 400 are sleeved on the main shaft 300, but there is a gap between them, so that the eccentric wheel 400 can rotate relative to the main shaft 300. Twelve semi-circular recesses 410 are evenly distributed along the circumference of the main shaft 300 on the upper surface of the eccentric wheel 400. Therefore, when the eccentric wheel 400 is under a small load, under the action of the compression spring, the glass ball 340 sinks into the recess 410 and abuts against the recess 410, and the driving wheel 310 drives the eccentric wheel 400 to rotate through the glass ball 340; when the eccentric wheel 400 is under a large load, the glass ball 340 slips between the recesses 410, and at this time the rotation of the driving wheel 310 will not drive the eccentric wheel 400 to rotate. As shown in Figure 5, all six mounting holes 320 are blind holes 370.

[0047] In some specific embodiments of this application, the depth of the recess 410 is less than half the diameter of the glass bead 340, thereby ensuring that the glass bead 340 can smoothly slip between the recesses 410 during the cutting process. In other embodiments of this application, the depth of the recess 410 is less than one-third the diameter of the glass bead 340. Reducing the depth of the recess 410 can reduce the resistance formed between the glass bead 340 and the recess 410 during the cutting process, further reducing the energy consumption of this automatic can opener.

[0048] In other embodiments of this application, the mounting hole is a through hole, and a stop member is detachably mounted on the upper end of the drive wheel. The stop member is used to block the opening at the upper end of the through hole. As shown in Figures 7 and 8, four through holes 380 are provided. The glass beads 340 and the elastic member 330 are installed into the through holes 380 from top to bottom, and then the stop member 390 is installed onto the upper end of the drive wheel 310 by bolts, thereby making the assembly of this automatic can opening device more convenient.

[0049] As shown in Figure 3, the eccentric wheel 400 is connected to the movable plate 500 via a double-ring plate 430. One end of the double-ring plate 430 is fitted onto the movable plate 500, allowing the double-ring plate 430 to rotate relative to the movable plate 500. The other end of the double-ring plate 430 is fitted onto the eccentric wheel 400, and the movable plate 500, limited by the housing 100, can only move linearly in the front-back direction. Thus, the double-ring plate 430 converts the rotation of the eccentric wheel 400 into the front-back movement of the movable plate 500. The second cutting wheel 510 is inclinedly mounted on the movable plate 500. Therefore, the forward and reverse rotation of the main shaft 300 can drive the second cutting wheel 510 to move closer to and away from the first cutting wheel 350 via the eccentric wheel 400, the double-ring plate 430, and the movable plate 500.

[0050] The following is a specific application example illustrating the can opening and blade retraction process of this automatic can opening device:

[0051] The edge of the can is placed between the first cutting wheel 350 and the second cutting wheel 510. The can-opening function is activated, and the electric motor rotates forward. After deceleration and torque increase through the first-stage gear 211, the second-stage gear 222, and the third-stage gear 223, the motor drives the drive wheel 310 to rotate. The drive wheel 310 drives the first cutting wheel 350 to rotate through the main shaft 300. In the mounting hole 320 at the lower end of the drive wheel 310, the compression spring presses the glass ball 340 against the recess 410 on the upper end face of the eccentric wheel 400, so that the eccentric wheel 400 and the drive wheel 310 rotate together. The eccentric wheel 400 rotates through the double ring plate 43. The 0 drives the movable plate 500 to move backward, causing the second cutting wheel 510 on the movable plate 500 to approach the first cutting wheel 350 until the second cutting wheel 510 and the first cutting wheel 350 clamp the edge of the can. At this time, the load on the eccentric wheel 400 increases, causing the glass beads 340 to slip between multiple pits 410. The automatic can opening device enters the cutting state. In this state, the eccentric wheel 400 remains stationary, keeping the second cutting wheel 510 and the first cutting wheel 350 clamping the edge of the can. The first cutting wheel 350 is driven to rotate by the main shaft 300, thereby achieving the cutting of the can.

[0052] After cutting is completed, the retraction function is activated, and the electric motor reverses. Since the resistance of the second cutting wheel 510 sliding away from the first cutting wheel 350 is small at this time, the compression spring in the mounting hole 320 at the lower end of the drive wheel 310 presses the glass bead 340 against the recess 410 on the upper surface of the eccentric wheel 400, so that the eccentric wheel 400 and the drive wheel 310 reverse together. The reversal of the eccentric wheel 400 drives the movable plate 500 forward through the double ring plate 430, so that the second cutting wheel 510 moves away from the first cutting wheel 350, making it easier to remove the automatic can opener and complete the retraction.

[0053] Therefore, this automatic can-opening device, by setting mounting holes 320 on the drive wheel 310, placing elastic elements 330 and glass beads 340 in the mounting holes 320, and correspondingly setting recesses 410 on the eccentric wheel 400, enables the drive wheel 310 to drive the eccentric wheel 400 to complete the cutting and retraction actions, while keeping the eccentric wheel 400 stationary during the cutting state, so that the first cutting wheel 350 and the second cutting wheel 510 keep clamping the edge of the can, thus completing the cutting action. The resistance between the glass beads 340 and the end face of the recesses 410 on the eccentric wheel 400 is small, so during normal cutting, it will not increase the rotation load of the drive wheel 310 significantly, thereby reducing the cutting energy consumption of the automatic can-opening device, and also reducing the noise generated during the cutting process. Setting multiple compression springs to provide thrust to multiple glass beads 340 can effectively extend the service life of the automatic can-opening device and avoid the failure of the device's retraction function due to fatigue failure of a single spring.

[0054] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. An automatic can opening device, comprising: a housing (100); a driving mechanism (200) arranged in the housing (100); a main shaft (300) rotatably penetrating the housing (100), one end of the main shaft (300) being arranged with a driving wheel (310) in the housing (100), the driving wheel (310) being in driving connection with the driving mechanism (200) through a transmission mechanism (210), the other end of the main shaft (300) being arranged with a first cutting wheel (350) outside the housing (100); an eccentric wheel (400) sleeved on the main shaft (300), an installation hole (320) being formed on an end face of the eccentric wheel (400) facing the driving wheel (310), an elastic member (330) being arranged in the installation hole (320), a glass bead (340) being arranged on one end of the elastic member (330) facing the eccentric wheel (400), a semicircular pit (410) being arranged on the end face of the eccentric wheel (400) corresponding to the position of the glass bead (340); a movable plate (500) slidably penetrating the housing (100), the movable plate (500) being arranged with a second cutting wheel (510) on one side outside the housing (100), the eccentric wheel (400) being in driving connection with the movable plate (500), the eccentric wheel (400) being rotatable to drive the second cutting wheel (510) to approach and move away from the first cutting wheel (350); in the feeding and retracting state, the glass bead (340) is sunk into the pit (410), the eccentric wheel (400) is rotatable to drive the second cutting wheel (510) to approach and move away from the first cutting wheel (350); in the can opening and cutting state, the glass bead (340) slips on the end face of the eccentric wheel (400), the eccentric wheel (400) is stationary, and the first cutting wheel (350) and the second cutting wheel (510) keep the state of clamping the edge of a can.

2. The automatic can opening device according to claim 1, wherein, A plurality of installation holes (320) are arranged, the plurality of installation holes (320) are uniformly distributed along the circumference of the driving wheel (310), the elastic member (330) and the glass bead (340) are arranged in each installation hole (320), and a plurality of semicircular pits (410) are correspondingly arranged on the end face of the eccentric wheel (400).

3. The automatic can opening device of claim 2, wherein, A boss (360) is arranged on one side of the driving wheel (310) close to the eccentric wheel (400), and the installation holes (320) are all arranged above.

4. The automatic can opening device of claim 3, wherein, A circular ring disc (420) is arranged on one side of the eccentric wheel (400) close to the driving wheel (310), and the boss (360) penetrates the circular ring disc (420).

5. The automatic can opening device of claim 4, wherein, The pit (410) is provided with twelve.

6. The automatic can opening device of claim 4, wherein, The elastic member (330) is a compression spring.

7. The automatic can opening device of claim 1, wherein, The transmission mechanism (210) is a speed reduction gear set.

8. The automatic can opening device of claim 1, wherein, The speed reduction gear set comprises a first gear (211), a second gear (222) and a third gear (223) which are engaged in sequence, the first gear (211) is in driving connection with the driving mechanism (200), and the third gear (223) is in driving connection with the driving wheel (310).

9. The automatic can opening device of claim 1, wherein, The eccentric wheel (400) is connected with the movable plate (500) through a double-ring plate (430), and the double-ring plate (430) converts the rotation of the eccentric wheel (400) into the linear motion of the movable plate (500).

10. The automatic can opening device of claim 1, wherein, The second cutting wheel (510) is obliquely arranged on the movable plate (500).

11. The automatic can opening device of claim 2, wherein, The mounting hole (320) is a blind hole (370).

12. The automatic can opening device of claim 11, wherein, The blind hole (370) is provided with six.

13. The automatic can opening device of claim 2, wherein, The mounting hole (320) is a through hole (380), and a stop piece (390) is detachably arranged on the upper end of the driving wheel (310), and the stop piece (390) is used for shielding the opening at the upper end of the through hole (380).

14. The automatic can opening device of claim 13, wherein, The through hole (380) is provided with four.

15. The automatic can opening device of claim 2, wherein, The depth of the recess (410) is less than one half of the diameter of the glass bead (340).

16. The automatic can opening device of claim 15, wherein, The depth of the recess (410) is less than one third of the diameter of the glass bead (340).

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