Gear transmission mechanism of can opener

Abstract

The utility model discloses a gear transmission mechanism of a can opener, which belongs to the technical field of can openers and comprises a driving mechanism, a gear transmission mechanism and a transmission mechanism. The main shaft is rotatably arranged on the can opener shell in a penetrating manner; the floating gear is arranged on the main shaft in a penetrating mode, the floating gear can move up and down in the axial direction of the main shaft, the floating gear is in transmission connection with the driving mechanism through a reduction gear set, the floating gear is connected with the main shaft through a compression spring, and the lower end of the floating gear protrudes downwards to form first inner teeth; the eccentric wheel is arranged on the main shaft in a sleeving mode, the upper end of the eccentric wheel is downwards concaved to form second inner teeth, and the first inner teeth are meshed with the second inner teeth, so that when the load of the eccentric wheel is low, the floating gear can drive the eccentric wheel to rotate; the two cutting wheels of the can opener can be driven to be close to and away from each other through forward and reverse rotation of the eccentric wheel.

Description

Technical Field

[0001] The utility model relates to the technical field of can openers, in particular to a gear transmission mechanism for a can opener. Background Art

[0002] An electric can opener is an electric tool used to conveniently open cans. The electric can opener is designed to simplify the process of opening cans, and is particularly useful for those with weak hand strength or hand joint problems. An electric can opener can greatly simplify the process of using canned food and improve the convenience of life.

[0003] After opening the can, the electric can opener needs the knife to automatically retract so that the can opener can be safely removed and stored. However, the current knife retraction mechanism will produce a large resistance during the can opening process, which not only increases energy consumption, but may also cause the knife retraction mechanism to fail after a period of use, thus affecting the effective function of the can opener and shortening its service life. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a gear transmission mechanism for a can opener. The gear transmission mechanism can reduce the resistance caused by the knife retracting mechanism.

[0005] The gear transmission mechanism of the can opener according to the embodiment of the utility model includes a driving mechanism and a main shaft, the driving mechanism is arranged in the can opener shell, the main shaft is rotatably inserted into the can opener shell, and also includes a driving mechanism, the driving mechanism is arranged in the can opener shell; a main shaft, the main shaft is rotatably inserted into the can opener shell; a floating gear, the floating gear is inserted into the main shaft, the floating gear can move up and down along the axial direction of the main shaft, the floating gear is connected to the driving mechanism through a reduction gear set, the floating gear is connected to the main shaft through a compression spring, and the lower end of the floating gear protrudes downward with a first internal tooth; an eccentric wheel, the eccentric wheel is sleeved on the main shaft, the upper end of the eccentric wheel is recessed downward with a second internal tooth, the first internal tooth is meshed with the second internal tooth, so that the floating gear can drive the eccentric wheel to rotate when the load of the eccentric wheel is low; the forward and reverse rotation of the eccentric wheel can drive the two cutting wheels of the can opener to approach and move away from each other.

[0006] The gear transmission mechanism of the can opener according to the embodiment of the utility model has at least the following beneficial effects: the gear transmission mechanism of the can opener completes the transmission requirements of cutting, feeding and retracting of the can opener through the slipping and meshing of the first inner teeth and the second inner teeth. The first inner teeth and the second inner teeth have less resistance when slipping, so in the normal cutting process, it will not add a large load to the rotation of the cutting wheel, thereby reducing the cutting energy consumption of the can opener, and the gear transmission mechanism of the can opener has a stable structure, and the noise generated during the cutting process is also small, which can effectively extend the service life of the can opener.

[0007] According to some embodiments of the utility model, a fixing plate is arranged on the main shaft, a spring groove is formed on the upper end surface of the floating gear, and a compression spring is arranged between the fixing plate and the spring groove.

[0008] According to some embodiments of the present invention, at least five first internal teeth are provided, and the at least five first internal teeth are evenly distributed along the circumference of the floating gear.

[0009] According to some embodiments of the present invention, at least five second internal teeth are provided, and the at least five second internal teeth are evenly distributed along the circumference of the eccentric wheel.

[0010] According to some embodiments of the present invention, transition portions are provided on both sides of the first inner tooth and the second inner tooth.

[0011] According to some embodiments of the present invention, the transition portion includes an inclined surface segment, and a rounded corner segment is provided at the upper end of the inclined surface segment.

[0012] According to some embodiments of the present invention, the slope segment is arranged obliquely.

[0013] According to some embodiments of the present invention, the thickness of the first inner tooth and the second inner tooth are both between 1.0 mm and 2.0 mm.

[0014] According to some embodiments of the utility model, an E-type snap ring is provided on the main shaft, the E-type snap ring is located at the upper end of the eccentric wheel, and the E-type snap ring is used to stabilize the eccentric wheel.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 It is a structural schematic diagram of the gear transmission mechanism of the can opener of the embodiment of the utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure of the floating gear;

[0019] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle eccentric wheel;

[0020] Figure 4 It is a cross-sectional view of the floating gear and the eccentric wheel in a slipping state;

[0021] Figure 5It is a cross-sectional view of the floating gear and the eccentric wheel in meshing state;

[0022] Figure 6 yes Figure 5 A partial enlarged view of the middle A;

[0023] Figure 7 It is a cross-sectional view of the floating gear and the eccentric wheel.

[0024] Reference numerals:

[0025] Driving mechanism 100; reduction gear set 110;

[0026] Spindle 200; fixed plate 210; E-type retaining ring 220

[0027] Floating gear 300; compression spring 310; first inner tooth 320; transition portion 321; inclined surface section 322; rounded section 323; spring groove 330;

[0028] Eccentric wheel 400; second inner teeth 410.

[0029] Can opener housing 1. DETAILED DESCRIPTION

[0030] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] refer to Figures 1 to 6 The gear transmission mechanism of a can opener according to an embodiment of the utility model is described.

[0035] like Figures 1 to 6 As shown, the gear transmission mechanism of the can opener of the utility model embodiment comprises: a driving mechanism 100, which is arranged in the can opener housing 1; a main shaft 200, which is rotatably arranged on the can opener housing 1; a floating gear 300, which is arranged on the main shaft 200 and can move up and down along the axial direction of the main shaft 200, and the floating gear 300 is connected to the driving mechanism 100 through the reduction gear set 110, and the floating gear 300 is compressed by the compression spring The spring 310 is connected to the main shaft 200, and the floating gear 300 has a first inner tooth 320 protruding downward from the lower end; the eccentric wheel 400 is sleeved on the main shaft 200, and the upper end of the eccentric wheel 400 has a second inner tooth 410 concave downward, and the first inner tooth 320 is meshed with the second inner tooth 410, so that the floating gear 300 can drive the eccentric wheel 400 to rotate when the load of the eccentric wheel 400 is low; the forward and reverse rotation of the eccentric wheel 400 can drive the two cutting wheels of the can opener to move closer to and away from each other.

[0036] like Figure 5 As shown, in the feeding state, the driving mechanism 100 drives the floating gear 300 to rotate forwardly through the reduction gear set 110. Since the load of the eccentric wheel 400 is relatively low at this time, the first inner teeth 320 and the second inner teeth 410 will not slip against each other. The floating gear 300 and the eccentric wheel 400 are meshed through the first inner teeth 320 and the second inner teeth 410. The forward rotation of the floating gear 300 drives the eccentric wheel 400 to rotate forwardly. The forward rotation of the eccentric wheel 400 drives the two cutting wheels of the can opener to approach each other, thereby completing the feeding.

[0037] like Figure 5 and Figure 6 As shown, in the cutting working state, the two cutting wheels of the can opener are in a state of clamping the edge of the can, so the load of the eccentric wheel 400 is relatively large at this time, and the driving mechanism 100 continues to drive the floating gear 300 to rotate forward, the first inner teeth 320 and the second inner teeth 410 slip against each other, and the floating gear 300 is repeatedly lifted up by the second inner teeth 410 and pressed down by the compression spring 310, so the floating gear 300 floats up and down while rotating forward, while the eccentric wheel 400 remains stationary. Thus, the two cutting wheels of the can opener keep clamping the edge of the can, and at the same time, the floating gear 300 drives the cutting wheel to rotate to complete the can opening and cutting.

[0038] like Figure 5 As shown, in the retracting state, the driving mechanism 100 drives the floating gear 300 to reverse through the reduction gear set 110. Since the load of the eccentric wheel 400 is relatively low at this time, the first inner teeth 320 and the second inner teeth 410 will not slip against each other. The floating gear 300 and the eccentric wheel 400 are meshed through the first inner teeth 320 and the second inner teeth 410. The reversal of the floating gear 300 drives the eccentric wheel 400 to reverse, and the reversal of the eccentric wheel 400 drives the two cutting wheels of the can opener to move away from each other, thereby completing the retracting.

[0039] Thus, the gear transmission mechanism of the can opener completes the transmission requirements of cutting, cutting and retracting of the can opener through the slipping and meshing of the first inner teeth 320 and the second inner teeth 410. The first inner teeth 320 and the second inner teeth 410 have less resistance when slipping, so in the normal cutting process, it will not add a large load to the rotation of the cutting wheel, thereby reducing the cutting energy consumption of the can opener, and the gear transmission mechanism of the can opener has a stable structure, and the noise generated during the cutting process is also small, which can effectively extend the service life of the can opener.

[0040] like Figure 1 and Figure 4 As shown, a fixing plate 210 is disposed on the main shaft 200 , a spring groove 330 is formed on the upper end surface of the floating gear 300 , and the compression spring 310 is disposed between the fixing plate 210 and the spring groove 330 .

[0041] like Figure 2 and Figure 3 As shown, there are at least five first internal teeth 320 , which are evenly distributed along the circumference of the floating gear 300 . There are at least five second internal teeth 410 , which are evenly distributed along the circumference of the eccentric wheel 400 .

[0042] like Figure 6 As shown, transition portions 321 are provided on both sides of the first inner tooth 320 and the second inner tooth 410. The transition portion 321 includes an inclined surface segment 322, and a rounded corner segment 323 is provided on the upper end of the inclined surface segment 322. The inclined surface segment 322 is inclined. The thickness of the first inner tooth 320 and the second inner tooth is between 1.0 mm and 2.0 mm. The inclined surface segment 322 and the rounded corner segment 323 are provided for transition, so that the resistance and impact generated by the first inner tooth 320 and the second inner tooth 410 in the process of sliding against each other can be reduced, thereby improving the stability of the can opener's can opening action, reducing energy consumption, and ensuring the normal operation of the feed and retract functions, further extending the service life.

[0043] like Figure 7As shown, an E-type snap ring 220 is provided on the main shaft 200 . The E-type snap ring 220 is located at the upper end of the eccentric wheel. The E-type snap ring 220 is used to stabilize the eccentric wheel 400 .

[0044] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A gear transmission mechanism for a can opener, comprising a drive mechanism (100) and a main shaft (200), wherein the drive mechanism (100) is arranged in a can opener housing (1), and the main shaft (200) is rotatably arranged on the can opener housing (1), characterized in that: Also includes: A floating gear (300), the floating gear (300) being inserted into the main shaft (200), the floating gear (300) being able to move up and down along the axial direction of the main shaft (200), the floating gear (300) being transmission-connected to the driving mechanism (100) via a reduction gear set (110), the floating gear (300) being connected to the main shaft (200) via a compression spring (310), and a first internal tooth (320) protruding downward from the lower end of the floating gear (300); An eccentric wheel (400) is sleeved on the main shaft (200); the upper end of the eccentric wheel (400) is concave downwardly with a second inner tooth (410); the first inner tooth (320) is meshed with the second inner tooth (410), so that when the load of the eccentric wheel (400) is low, the floating gear (300) can drive the eccentric wheel (400) to rotate; the forward and reverse rotation of the eccentric wheel (400) can drive the two cutting wheels of the can opener to move closer to and away from each other.

2. The can opener gear transmission mechanism according to claim 1, characterized in that: A fixing plate (210) is provided on the main shaft (200), a spring groove (330) is provided on the upper end surface of the floating gear (300), and the compression spring (310) is arranged between the fixing plate (210) and the spring groove (330).

3. The can opener gear transmission mechanism according to claim 1, characterized in that: At least five of the first internal teeth (320) are provided, and the at least five first internal teeth (320) are evenly distributed along the circumference of the floating gear (300).

4. The gear transmission mechanism of the can opener according to claim 3, characterized in that: At least five of the second internal teeth (410) are provided, and the at least five second internal teeth (410) are evenly distributed along the circumference of the eccentric wheel (400).

5. The gear transmission mechanism of the can opener according to claim 4, characterized in that: Transition portions (321) are provided on both sides of the first inner tooth (320) and the second inner tooth (410).

6. The gear transmission mechanism of the can opener according to claim 5, characterized in that: The transition portion (321) comprises an inclined surface segment (322) which is arranged obliquely, and a rounded corner segment (323) is arranged at the upper end of the inclined surface segment (322).

7. The can opener gear transmission mechanism according to claim 6, characterized in that: The inclined surface section (322) is arranged inclined.

8. The gear transmission mechanism of the can opener according to claim 7, characterized in that: The thickness of the first inner tooth (320) and the second inner tooth are both between 1.0 mm and 2.0 mm.

9. The can opener gear transmission mechanism according to claim 8, characterized in that: An E-shaped snap ring (220) is provided on the main shaft (200), the E-shaped snap ring (220) is located at the upper end of the eccentric wheel (400), and the E-shaped snap ring (220) is used to stabilize the eccentric wheel (400).

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