Electric bread knife convenient to disassemble

Abstract

The electric bread knife convenient to disassemble comprises a blade set composed of a plurality of sawtooth blades, a shell, a driving assembly and a connecting assembly, the driving assembly and the connecting assembly are located in the shell, the connecting assembly is located in the shell and connected with the driving assembly, the connecting assembly comprises a movable seat, and the movable seat is in transmission connection with the driving assembly. A pressing elastic piece and a containing space are arranged in the movable seat, the blade set is inserted into the shell and enters the containing space of the movable seat, and the pressing elastic piece fixes and presses the blade set. The blade group of the electric bread knife is convenient to mount and dismount, and can be pulled out and placed separately after being used, so that the use safety of the knife is ensured; the battery is used for supplying power conveniently; the charging circuit is simple in structure and saves charger cost.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to an electric bread knife which is easy to disassemble. Background Art

[0002] A knife is a tool for cutting food. It is more convenient to cut bread with a professional knife. For example, a long serrated bread knife is used to cut harder bread. Electric bread knives are now available on the market. Compared with manual cutting, the blade of an electric bread knife has a faster cutting frequency, can cut beautiful bread, is easy to use, and reduces labor.

[0003] The existing Chinese patent with announcement number CN 217597153 U discloses a safe automatic bread slicer, in which a serrated blade is connected to a housing and is provided with a knife unloading key. When the knife unloading key is pressed, the knife unloading key removes the serrated blade through a knife unloading spring. The technicians are unable to know the specific installation and fixing structure of the serrated blade.

[0004] Knives are sharp kitchen utensils, and a safe mounting structure is particularly important. Utility Model Content

[0005] The utility model aims to provide an electric bread knife which is easy to disassemble. The compression spring piece is used to lock and fix the blade set. When the blade set needs to be disassembled, the knife unloading button is pressed to push open the compression spring piece and pull out the blade set, thereby ensuring the safe use of the knife.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: an electric bread knife that is easy to disassemble, comprising a blade group consisting of a plurality of serrated blades, a shell, a driving assembly and a connecting assembly located inside the shell, the connecting assembly being located inside the shell and connected to the driving assembly, the connecting assembly comprising a movable seat, the movable seat being transmission-connected to the driving assembly, a clamping spring sheet and a accommodating space being provided inside the movable seat, the blade group being inserted into the shell and entering the accommodating space of the movable seat, the clamping spring sheet fixing and clamping the blade group.

[0007] By adopting the above technical solution, the blade set is inserted into the shell during use, and the blade set is inserted into the movable seat and fixed and compressed by the compression spring sheet. The driving component drives the movable seat to reciprocate, thereby driving the blade set to reciprocate.

[0008] The utility model is further configured as follows: the connection assembly further comprises a fixing seat, the fixing seat is mounted on the inner wall of the shell, the fixing seat is provided with an accommodating cavity, and the movable seat is slidably penetrated and arranged in the accommodating cavity.

[0009] By adopting the above technical solution, the movable seat reciprocates in the accommodating cavity of the fixed seat, and at the same time the fixed seat limits the movable seat, so that the movable seat moves within the track.

[0010] The utility model is further configured as follows: a plurality of guide blocks are disposed on the side wall of the movable seat, and the guide blocks and the bottom surface of the movable seat form a receiving space.

[0011] By adopting the above technical solution, the guide block and the accommodating space enable the blade set to be quickly inserted and removed, and at the same time the guide block and the accommodating space limit the swing of the blade set in the vertical direction.

[0012] The utility model is further configured as follows: the blade set comprises two sawtooth blades arranged in parallel, and a limiting column is arranged at the rear end of the sawtooth blade.

[0013] The utility model is further configured as follows: the clamping spring is divided into a U-shaped section, a contact section, a bending section and a fixing section, the contact section is provided with a limiting hole, the serrated blade is inserted into the shell, the limiting column is inserted into the limiting hole for limiting and fixing, and the contact section contacts the serrated blade.

[0014] By adopting the above technical scheme, the clamping spring is divided into a U-shaped section, a contact section, a bent section and a fixed section. The fixed section fixes the clamping spring firmly in the movable seat without displacement. The bent section enables the clamping spring to have a strong clamping force toward the bottom surface of the movable seat so that the contact section can press the serrated blade. The U-shaped section is used for the unloading button to push open the clamping spring in the opposite direction to pull out the serrated blade.

[0015] The utility model is further configured as follows: the movable seat is provided with a notch, and the fixed section of the pressing spring sheet is inserted into the notch and fixed.

[0016] The utility model is further configured as follows: a knife unloading button is inserted into the U-shaped section of the pressing spring sheet.

[0017] The utility model is further configured as follows: the driving assembly includes a motor, a worm and a worm wheel, the output end of the motor is connected to the worm, the worm is meshed with the worm wheel, and transmission circular surfaces extend outwardly on both sides of the worm wheel, and the transmission circular surfaces are transmission-connected to the movable seat.

[0018] By adopting the above technical solution, the motor drives the worm to rotate, the worm drives the worm wheel to rotate, and the transmission circular surface of the worm wheel drives the movable seat to reciprocate.

[0019] The utility model is further configured as follows: a battery and a charging interface are provided at the end of the shell, the battery is electrically connected to the motor, the charging interface is electrically connected to the battery, and an external power source charges the battery from the USB charging interface through a charging circuit.

[0020] By adopting the above technical solution, the electric bread knife is powered by batteries and is not bound by a power cord.

[0021] The utility model is further configured as follows: the charging circuit includes a transformer T1, a voltage-stabilizing diode D2, transistors Q1 and Q2, one end of the primary winding of the transformer T1 is connected to the power input end, and the other end of the primary winding of the transformer T1 is connected to the collector of the transistor Q1; the auxiliary winding of the transformer T1 is connected to the voltage-stabilizing diode D2, and the output end of the secondary winding of the transformer T1 is connected to the USB interface; the base of the transistor Q1 is connected to the positive pole of the power input end, the emitter of the transistor Q1 is connected to the negative pole of the power input end, the emitter of the transistor Q1 is connected to the base of the transistor Q2, the collector of the transistor Q2 is connected to the base of the transistor Q1, and the emitter of the transistor Q2 is connected to the negative pole of the power input end.

[0022] By adopting the above technical solution, the charging circuit charges the battery, and when the battery is fully charged, the transistor Q1 is turned off and the charging stops.

[0023] Compared with the prior art, the electric bread knife blade assembly of the utility model is easy to install and disassemble, and the blade assembly can be pulled out and placed separately after use, ensuring the safety of the knife. At the same time, it is convenient to use with battery power supply; the charging circuit structure is simple and saves the charger cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of an electric bread knife in an embodiment of the utility model.

[0025] Figure 2 It is a diagram of the internal structure of an electric bread knife in an embodiment of the utility model.

[0026] Figure 3 It is a structural diagram of a blade assembly in an embodiment of the utility model.

[0027] Figure 4 It is a structural diagram of a movable seat in an embodiment of the utility model.

[0028] Figure 5 It is a structural diagram of the compression spring sheet in the embodiment of the utility model.

[0029] Figure 6 It is a structural diagram of the blade set inserted into the movable seat in the embodiment of the utility model.

[0030] Figure 7 It is a schematic diagram of a charging circuit in an embodiment of the utility model.

[0031] In the figure: 1. blade assembly; 2. housing; 3. drive assembly; 4. connecting assembly; 5. movable seat; 6. fixed seat; 7. pressing spring; 8. knife unloading button; 101. serrated blade; 102. limiting column; 301. motor; 302. worm; 303. worm wheel; 304. transmission circular surface; 501. guide block; 502. notch; 503. torsion spring; 504. oblong hole; 601. accommodating chamber; 701. U-shaped section; 702. abutting section; 703. bending section; 704. fixing section; 705. limiting hole. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0033] like Figure 1 , 2 As shown, this embodiment discloses an electric bread knife for cutting various types of bread or tough food materials, which is convenient for users to process food materials and reduces manual labor.

[0034] like Figure 1 , 2 As shown, the electric bread knife includes a blade group 1 consisting of a serrated blade 101, a shell 2, a drive assembly 3 and a connecting assembly 4 located inside the shell 2; the connecting assembly 4 is located inside the shell 2 and respectively connects the blade group 1 and the drive assembly 3, the blade group 1 is fixedly mounted on the connecting assembly 4, the connecting assembly 4 is transmission-connected with the drive assembly 3, the drive assembly 3 drives the connecting assembly 4 to reciprocate, thereby driving the blade group 1 to reciprocate and cut, so that the user holds the handle and the moving blade group 1 can cut the food.

[0035] The connecting assembly 4 includes a fixed seat 6 and a movable seat 5. The fixed seat 6 is fixedly mounted on the inner wall of the shell 2. The movable seat 5 accommodates and fixes the blade assembly 1. The fixed seat 6 has an accommodating cavity 601. The movable seat 5 is arranged through the accommodating cavity 601 of the fixed seat 6. The movable seat 5 can slide in the accommodating cavity 601 of the fixed seat 6.

[0036] like Figure 3 As shown, in this embodiment, the blade set 1 includes two parallel serrated blades 101, which are arranged side by side through screws at the front end of the blades and a protective sleeve in the middle. A limiting column 102 is provided at the handle end of the serrated blades. The handle of the blade set 1 is inserted into the housing 2 and fixed to the movable seat 5 in the connecting assembly 4.

[0037] like Figure 2 , 4 As shown, in this embodiment, two movable seats 5 are arranged side by side in the accommodating cavity 601 of the fixed seat 6, and the handle of the serrated blade 101 is inserted into the movable seat 5 to limit and fix it; the movable seat 5 is provided with a slot 502 on the side away from the serrated blade 101, and a clamping spring 7 is installed in the slot 502. The handle of the serrated blade 101 is inserted into the movable seat 5, and the clamping spring 7 limits and clamps the serrated blade 101.

[0038] Specifically, in order to quickly and accurately insert the serrated blade 101 into the movable seat 5, a plurality of guide blocks 501 are provided on the side wall of the movable seat 5, and the guide blocks 501 and the bottom surface of the movable seat 5 form a receiving space, along which the serrated blade 101 is quickly inserted.

[0039] like Figure 5 , 6 As shown, the clamping spring piece 7 is L-shaped as a whole, and the clamping spring piece 7 is divided into a U-shaped section 701, abutting section 702, a bending section 703 and a fixing section 704. The fixing section 704 is inserted into the slot 502, and a first hole is provided in the fixing section 704. After the fixing section 704 is inserted into the slot 502, a screw is screwed into the slot 502 and passes through the first hole to fix the clamping spring piece 7; the bending section 703 deflects the clamping spring piece 7 toward the bottom surface of the movable seat 5, and when the serrated blade 101 resists the elastic force of the clamping spring piece 7 and is inserted into the movable seat 5, the serrated blade 101 resists the elastic force of the clamping spring piece 7 and abuts against the movable seat 5. The restoring elastic force of the connecting section 702 causes the pressing spring sheet 7 to press the serrated blade 101. A limiting hole 705 is provided in the abutting section 702. The limiting column 102 of the serrated blade 101 is inserted into the limiting hole 705 and fixes the serrated blade 101 together with the abutting section 702; the U-shaped section 701 is inserted into the toggle part of the knife unloading button 8. When disassembling the blade assembly 1, the toggle part of the knife unloading button 8 resists the elastic force of the pressing spring sheet 7 to make the limiting column 102 disengage from the limiting hole 705. At this time, the blade assembly 1 can be quickly removed by pulling out the blade assembly 1.

[0040] Specifically, a torsion spring 503 is provided at the rear end of the movable seat 5. The torsion spring 503 can limit the inserted serrated blade 101, and the torsion spring 503 abuts against the end of the handle of the serrated blade 101; the torsion spring 503 can be compressed and tightened when abutting against the end of the handle of the serrated blade 101, so as to adapt to serrated blades 101 of different models and sizes. At the same time, the rebound force of the torsion spring 503 when compressed can push the blade group 1 when the blade group 1 is disassembled so that the blade group 1 can be quickly pulled out.

[0041] like Figure 2As shown, the driving assembly 3 includes a motor 301, a worm 302 and a worm wheel 303. The output end of the motor 301 is connected to the worm 302, and the worm 302 is meshed with the worm wheel 303. Under the action of the motor 301, the worm 302 drives the worm wheel 303 to rotate. Transmission circular surfaces 304 extend outward on both sides of the worm wheel 303, and the two transmission circular surfaces 304 are eccentrically arranged relative to the rotation axis of the worm wheel 303. The movable seat 5 is provided with an oblong hole 504 near the worm wheel 303, and the transmission circular surface 304 is arranged in the oblong hole 504. When the worm wheel 303 rotates, the transmission circular surface 304 drives the movable seat 5 to reciprocate through the oblong hole 504, thereby driving the serrated blade 101 to reciprocate and cut.

[0042] In another embodiment, a battery and a USB charging port are provided at the end of the housing 2, the battery is electrically connected to the motor 301 to provide power to the motor 301, and an external power source charges the battery from the USB charging port through a charging circuit.

[0043] like Figure 7 As shown, the charging circuit steps down the AC mains voltage into a DC voltage and then outputs it from the USB interface, and the output current charges the battery through the USB charging interface. The charging circuit includes a transformer T1, a voltage stabilizing diode D2, transistors Q1 and Q2, one end of the primary winding of the transformer T1 is connected to the power input end, and the other end of the primary winding of the transformer T1 is connected to the collector of the transistor Q1; the auxiliary winding of the transformer T1 is connected to the voltage stabilizing diode D2, and the output end of the secondary winding of the transformer T1 is connected to the USB interface; the power input end is connected to the rectifier diode D1 and then connected to the resistor R2 and the base of the transistor Q1, the emitter of the transistor Q1 is connected to the resistor R1 and then connected to the power input end, the emitter of the transistor Q1 is connected to the resistor R3 and then connected to the base of the transistor Q2, the collector of the transistor Q2 is connected to the base of the transistor Q1, and the emitter of the transistor Q2 is connected to the power input end.

[0044] The current at the power input end is rectified and filtered by the rectifier diode D1 and the capacitor C1 and then flows to one end of the primary winding of the transformer T1. The other end of the primary winding of the transformer T1 flows back to the power input end through the transistor Q1 to form a current loop. The auxiliary winding and the secondary winding of the transformer generate an induced current, which is rectified and filtered by the rectifier diode D7, the capacitor C5 and the resistor R6 and then output. The auxiliary winding detects the current through the voltage regulator diode D2 and adjusts the current output of the charging circuit. When the load decreases or the voltage at the power input end increases, the voltage regulator diode D2 conducts in the reverse direction, the base of the transistor Q2 is forward biased, the transistor Q2 is turned on, the base voltage of the transistor Q1 is pulled down, the transistor Q1 is cut off, the current output stops, and the power safety is protected.

[0045] When the electric bread knife of the utility model structure is adopted, when the blade group 1 is inserted into the shell body 2, the blade group 1 is inserted into the movable seat 5 in the accommodating space through the guide block 501. After the blade group 1 is inserted into the movable seat 5, it is fixed and pressed by the clamping spring piece 7. The driving component 3 drives the movable seat 5 to reciprocate, thereby driving the blade group 1 to reciprocate and cut; when disassembling the blade group 1, the knife unloading buttons 8 on both sides are pressed, and the knife unloading buttons 8 act on the U-shaped section 701 to push open the abutting section 702 of the clamping spring piece 7, the limiting column 102 and the limiting hole 705 are loosened, and the blade group 1 pops out forward under the action of the torsion spring 503, and the blade group 1 is quickly pulled out.

[0046] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An electric bread knife that is easy to disassemble, comprising a blade assembly (1) consisting of a plurality of serrated blades (101), a housing (2), a drive assembly (3) and a connecting assembly (4) located inside the housing (2), characterized in that: The connecting component (4) is located inside the shell (2) and connected to the driving component (3). The connecting component (4) comprises a movable seat (5). The movable seat (5) is transmission-connected to the driving component (3). A clamping spring (7) and a receiving space are provided inside the movable seat (5). The blade assembly (1) is inserted into the shell (2) and enters the receiving space of the movable seat (5). The clamping spring (7) fixes and clamps the blade assembly (1).

2. The easily disassembled electric bread knife according to claim 1, characterized in that: The connecting assembly (4) further comprises a fixed seat (6), wherein the fixed seat (6) is mounted on the inner wall of the housing (2), the fixed seat (6) is provided with a receiving cavity (601), and the movable seat (5) is slidably disposed in the receiving cavity (601).

3. The easily disassembled electric bread knife according to claim 1, characterized in that: The side wall of the movable seat (5) is provided with a plurality of guide blocks (501), and the guide blocks (501) and the bottom surface of the movable seat (5) form a receiving space.

4. The easily disassembled electric bread knife according to claim 1, characterized in that: The blade set (1) comprises two sawtooth blades (101) arranged in parallel, and a limiting column (102) is arranged at the handle end of the sawtooth blade (101).

5. The easily disassembled electric bread knife according to claim 4, characterized in that: The pressing spring sheet (7) is divided into a U-shaped section (701), an abutting section (702), a bending section (703) and a fixing section (704); the abutting section (702) is provided with a limiting hole (705); the serrated blade (101) is inserted into the housing (2); the limiting column (102) is inserted into the limiting hole (705) for limiting and fixing; the abutting section (702) is pressed against the serrated blade (101).

6. The easily disassembled electric bread knife according to claim 3, characterized in that: The movable seat (5) is provided with a notch (502), and the fixing section (704) of the pressing spring sheet (7) is inserted into the notch (502) for fixing.

7. The easily disassembled electric bread knife according to claim 5, characterized in that: A knife unloading button (8) is inserted into the U-shaped section (701) of the compression spring sheet (7).

8. The easily disassembled electric bread knife according to claim 1, characterized in that: The driving assembly (3) comprises a motor (301), a worm (302) and a worm wheel (303); the output end of the motor (301) is connected to the worm (302); the worm (302) is meshed with the worm wheel (303); transmission circular surfaces (304) extend outwardly from both sides of the worm wheel (303); and the transmission circular surfaces (304) are in transmission connection with the movable seat (5).

9. The easily disassembled electric bread knife according to claim 1, characterized in that: A battery and a charging interface are provided at the end of the housing (2); the battery is electrically connected to the motor (301); the charging interface is electrically connected to the battery; and an external power source charges the battery from the USB charging interface via a charging circuit.

10. The easily disassembled electric bread knife according to claim 9, characterized in that: The charging circuit includes a transformer T1, a voltage-stabilizing diode D2, transistors Q1 and Q2, one end of the primary winding of the transformer T1 is connected to the power input end, and the other end of the primary winding of the transformer T1 is connected to the collector of the transistor Q1; the auxiliary winding of the transformer T1 is connected to the voltage-stabilizing diode D2, and the output end of the secondary winding of the transformer T1 is connected to the USB interface; the base of the transistor Q1 is connected to the positive pole of the power input end, the emitter of the transistor Q1 is connected to the negative pole of the power input end, the emitter of the transistor Q1 is connected to the base of the transistor Q2, the collector of the transistor Q2 is connected to the base of the transistor Q1, and the emitter of the transistor Q2 is connected to the negative pole of the power input end.

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