Electric scissors capable of quickly detaching blades

Abstract

The technical scheme belongs to the technical field, and particularly relates to electric scissors with blades capable of being disassembled quickly. The device comprises a shell, a power supply assembly, a motor assembly, a transmission assembly and a tool bit assembly, and the tool bit assembly comprises a first shear blade fixedly arranged in the shell; the second scissor blade is detachably arranged on the first scissor blade through a locking piece; the locking piece is arranged in the direction perpendicular to the second shear blade and can move in the direction. The locking piece is provided with a first position and a second position in the moving direction; a locking part is arranged on the locking piece; when the locking piece is located at the first position, the locking part is located in the locking groove of the second shear blade; when the locking piece is located at the second position, the locking part is separated from the locking groove of the second shear blade, and the second shear blade can be moved out; the driving piece is provided with an embedding part, and the embedding part is clamped with the insertion end of the second shear blade and is in transmission with the insertion end of the second shear blade; and the fixing piece is used for pressing the driving piece and the second shear blade on the first shear blade.

Description

Technical Field

[0001] The present invention relates to the technical field of electric scissors, and in particular to an electric scissors with quick-detachable blades. Background Art

[0002] Currently, most commonly used scissors have a fixed shearing structure. However, in actual applications, such as gardening applications, when cutting thin branches, thick branches or pruning, scissors with different specifications or different shearing blades are required. Usually, multiple scissors of different specifications need to be configured, and once the scissors are damaged, they need to be replaced as a whole, which has a high cost of use.

[0003] Chinese patent CN220875170U discloses a pair of scissors with replaceable blades. When the shearing components of the scissors are disassembled, the structure is relatively complex and the blade replacement operation is relatively difficult. When using the scissors, people often need to spend a lot of time to replace the blades. Therefore, there is an urgent need for a pair of scissors that can quickly and easily replace the blades. Summary of the invention

[0004] The purpose of the technical solution is to provide an electric scissors with quick-detachable blades, in which the second scissor blade can be disassembled by moving a locking member, and the movement of the locking member can be completed by pressing the hand without the need for special tools. It can also effectively avoid one-handed operation and the other hand accidentally putting the other hand in the blade, thereby solving the problem of the complex structure of the original replaceable blade scissors.

[0005] The purpose of this technical solution is achieved in this way:

[0006] An electric scissors with quick-detachable blades, comprising: a housing; a power supply assembly, which is used to provide current to a motor assembly; the power supply assembly has a built-in battery or is externally connected to a power cord; a motor assembly, which is used to drive a transmission assembly; a transmission assembly, which is installed in the housing and is used to transmit the power output by the motor assembly to a cutter head assembly; a cutter head assembly, which is used to perform a cutting operation; wherein the cutter head assembly comprises: a first scissor blade, which is fixedly arranged in the housing and has a first blade portion; a second scissor blade, which is detachably arranged on the first scissor blade through a locking member and has a second blade portion; the locking member is arranged in a direction perpendicular to the second scissor blade and can be locked in this direction movement; the locking member has a first position and a second position in the moving direction; a locking portion is provided on the locking member; when the locking member is in the first position, the locking portion is located in the locking groove of the second scissor blade, and the second scissor blade rotates around the locking portion; when the locking member is in the second position, the locking portion disengages from the locking groove of the second scissor blade, and the second scissor blade can be moved out; a driving member, whose front end is rotatably arranged on the locking member, and a rear end gear is connected to the transmission assembly; an engaging portion is provided on one side of the driving member, and the engaging portion is engaged with and transmitted to the insertion end of the second scissor blade; a fixing member, which is used to press the driving member and the second scissor blade onto the first scissor blade.

[0007] Preferably, the cutter head assembly further comprises a return spring, the upper end of which abuts against the locking member, and the lower end abuts against the inner wall of the shell, so as to ensure that the locking member always has a tendency to move from the second position to the first position.

[0008] Preferably, a locking hole 1 is provided on the first scissor blade, a locking hole 2 is provided on the driving member, and a locking hole 3 is provided on the fixing member; the locking member can pass through the locking hole 1, the locking groove, the locking hole 2 and the locking hole 3 in sequence from bottom to top and be clamped on the first scissor blade.

[0009] Preferably, a limiting portion is protrudingly formed on the circumferential side of the lower portion of the locking member, and the limiting portion movably abuts against the lower end surface of the first scissor blade.

[0010] Preferably, a guide portion is formed at the rear end of the second scissor blade.

[0011] Preferably, a limiting column is protrudingly provided on the lower end surface of the driving member; and the rear end of the second scissor blade movably abuts against the limiting column.

[0012] Preferably, gear teeth are formed at the rear end of the driving member, and the gear teeth are used to receive power provided by the transmission assembly.

[0013] Preferably, both ends of the fixing member are detachably arranged on the first scissor blade or the housing by screws.

[0014] Preferably, the electric scissors further include a switch member, and the switch member is arranged on the upper end surface of the locking member.

[0015] Preferably, the electric scissors further include a gasket, which is arranged between the fixing member and the driving member.

[0016] Compared with the prior art, the technical solution has the following outstanding and beneficial technical effects:

[0017] 1. The second scissor blade designed in the technical solution is designed to be separated from the first scissor blade. The second scissor blade is detachably arranged on the first scissor blade. The locking member is inserted into the first scissor blade along a direction perpendicular to the second scissor blade. When the locking member is in different positions, it cooperates with the second scissor blade to lock or remove the second scissor blade. The locking member has a simple structure, and the second scissor blade can be quickly disassembled and replaced only by personnel controlling the movement of the locking member.

[0018] 2. The reset spring designed in the technical solution can push the locking member upward until the locking portion enters the locking groove, thereby achieving locking of the second movable blade.

[0019] 3. The engaging portion of the driving member designed in the present technical solution can cooperate with the insertion end of the second scissor blade to realize card engagement transmission, and the driving member can transmit the power of the transmission assembly to the second scissor blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of the technical solution.

[0021] Figure 2 This is a schematic diagram of the internal structure of this technical solution.

[0022] Figure 3 It is a schematic diagram of the structure of the cutter head assembly.

[0023] Figure 4 An exploded view of the cutter head assembly.

[0024] Figure 5 A cross-sectional view of the cutter head assembly.

[0025] Figure 6 It is a schematic diagram of the structure when the locking member is in the first position.

[0026] Figure 7 It is a schematic diagram of the structure when the locking member is in the second position.

[0027] Figure 8 It is a schematic diagram of the structure when the driving member and the second scissor blade cooperate.

[0028] 2. First scissor blade; 3. Second scissor blade; 4. Locking member; 5. Driving member; 6. Fixing member; 7. Locking groove; 8. Locking portion; 81. First portion; 82. Second portion; 9. Locking hole one; 10. Locking hole two; 11. Locking hole three; 13. Fitting portion; 14. Gear teeth; 15. Screw; 16. Guide portion; 17. Limiting column; 18. Limiting portion; 19. Switch member; 20. Gasket; 21. Return spring; 22. Housing; 24. Power supply assembly; 28. Motor assembly; 29. ​​Transmission assembly; 30. Cutting head assembly. DETAILED DESCRIPTION

[0029] The specific implementation of the technical solution is further described in detail below with reference to the accompanying drawings.

[0030] like Figure 1 and Figure 2 As shown, an electric scissors with quick-detachable blades includes a housing 22, a power supply assembly 24, a motor assembly 28, a transmission assembly 29 and a cutter head assembly 30. The power supply assembly 24 is used to provide current to the motor assembly 28. The power supply assembly 24 has a built-in battery or an external power cord, and can achieve wireless operation or wired operation. The motor assembly 28 is used to output power and drive the transmission assembly 29. The transmission assembly 29 is installed in the housing 22 and is used to transmit the power output by the motor assembly 28 to the cutter head assembly 30. The transmission assembly 29 is configured as a planetary gear reducer. The cutter head assembly 30 is connected to the output end of the transmission assembly 29 for performing cutting operations.

[0031] Specifically, Figure 1-5 As shown, the cutter head assembly 30 includes a first blade, a second scissor blade 3, a locking member 4, a driving member 5 and a fixing member 6. The rear end of the first scissor blade 2 is fixedly arranged in the housing 22, and the front end has a first blade portion. The rear end of the second scissor blade 3 is detachably arranged on the first scissor blade 2 through the locking member 4, and the front end has a second blade portion. The locking member 4 is plugged into the first scissor blade 2 in a direction perpendicular to the second scissor blade 3 and can move in this direction. The locking member 4 can fix the second scissor blade 3 in the horizontal direction by changing its own position. The locking member 4 has a first position and a second position in the moving direction. The locking member 4 is provided with a A locking portion 8 is provided. When the locking member 4 is in the first position, the locking portion 8 is located in the locking groove 7 of the second scissor blade 3. At this time, the second scissor blade 3 can rotate around the locking portion 8; when the locking member 4 is in the second position, the locking portion 8 is disengaged from the locking groove 7 of the second scissor blade 3. At this time, the second scissor blade 3 can be moved out horizontally. The front end of the driving member 5 is rotatably set on the locking member 4, and the rear end gear is connected to the transmission assembly 29. A fitting portion 13 is provided on one side of the driving member 5. The fitting portion 13 is clamped and transmitted with the insertion end of the second scissor blade 3. The fixing member 6 is used to press the driving member 5 and the second scissor blade 3 onto the first scissor blade 2.

[0032] Further, such as Figure 8 As shown, the engaging portion 13 is a rectangular block, and the insertion end of the second scissor blade 3 has an opening. When the second scissor blade 3 is installed, the engaging portion 13 is placed in the opening and fits with the insertion end of the second scissor blade 3. At this time, the driving member 5 can be engaged with the second scissor blade 3 through the embedded portion and transmit the power. When installing the second scissor blade 3, you only need to pay attention to the direction of the second scissor blade 3 during disassembly, and you can smoothly install the second scissor blade 3 back to its original position again without the second scissor portion colliding with the engaging portion 13.

[0033] Furthermore, the cutter head assembly 30 also includes a return spring 21, the upper end of the return spring 21 abuts against the lower end of the locking member 4, and the lower end abuts against the inner wall of the shell 22, so that the locking member 4 always has a tendency to move from the second position to the first position. The lower end of the locking member 4 is protruding with a mounting portion, and the return spring 21 is sleeved outside the mounting portion, which can ensure the stability of the return spring 21 when it is moving.

[0034] like Figure 4 and Figure 5 As shown, a locking hole 19 is provided on the first scissor blade 2, a locking hole 2 10 is provided on the driving member 5, and a locking hole 3 11 is provided on the fixing member 6. When installing, the locking member 4 can pass through the locking hole 1 9, the locking groove 7, the locking hole 2 10 and the locking hole 3 11 from bottom to top in sequence and be clamped on the first scissor blade 2. A limiting portion 18 is protruded from the peripheral side of the lower part of the locking member 4. The limiting portion 18 movably abuts against the lower end surface of the first scissor blade 2. The limiting portion 18 can limit the maximum distance that the locking member 4 moves upward.

[0035] Furthermore, the locking member 4 is stepped, and its circumferential side has a first portion 81, a second portion 82, a locking portion 8 and a limiting portion 18, the inner diameters of which increase successively. The first portion 81 cooperates with the locking hole three 11, which needs to be inserted into and extend out of the fixing member 6, and the second portion 82 cooperates with the locking hole two 10. When the driving member 5 rotates, it takes the second portion 82 as the axis. The locking portion 8 cooperates with the locking groove 7, and the locking groove 7 has a shrinkage, and the length of the shrinkage is smaller than the inner diameter of the locking portion 8, so that the second scissor blade 3 can be clamped on the locking portion 8.

[0036] like Figure 6-8 As shown, further, a guide portion 16 is formed at the rear end of the second scissor blade 3, and the guide portion 16 has a guide slope, which can guide the second scissor blade 3 to be smoothly and horizontally inserted inwardly. A limiting column 17 is protrudingly provided on the lower end surface of the driving member 5, and the rear end of the second scissor blade 3 movably abuts against the limiting column 17, and the limiting column 17 can limit the farthest distance that the second scissor blade 3 can be inserted inwardly.

[0037] Furthermore, the rear end of the driving member 5 is formed with gear teeth 14, and the driving member 5 is gear-connected to the transmission assembly 29 via the gear teeth 14, so as to receive power provided by the transmission assembly 29. Both ends of the fixing member 6 are detachably arranged on the first scissor blade 2 or the housing 22 via screws 15.

[0038] Furthermore, the electric scissors also include a switch member 19, which is arranged on the upper end surface of the locking member 4. A person can switch the locking member 4 between the first position and the second position by pressing the switch member 19. The switch member 19 has a large contact area with a human hand, which can facilitate the human hand to control the lifting and lowering of the locking member 4. The electric scissors also include a gasket 20, which is arranged between the fixing member 6 and the driving member 5. The gasket 20 can effectively reduce the wear between the fixing member 6 and the driving member 5 to increase the service life of the scissors.

[0039] The above shows and describes the basic principle and main features of the technical solution and the advantages of the technical solution. The technicians in this industry should understand that the technical solution is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the technical solution. Without departing from the spirit and scope of the technical solution, the technical solution will have various changes and improvements, which fall within the scope of the technical solution to be protected. The scope of protection claimed by the technical solution is defined by the attached claims and their equivalents.

Claims

1. An electric scissors with quick-detachable blades, characterized in that: include: Housing (22); A power supply assembly (24) for providing current to the motor assembly (28); the power supply assembly (24) has a built-in battery or is externally connected to a power cord; A motor assembly (28), which is used to drive a transmission assembly (29); A transmission assembly (29), which is installed in the housing (22) and is used to transmit the power output by the motor assembly (28) to the cutter head assembly (30); A cutter head assembly (30) for performing a shearing operation; Wherein, the cutter head assembly (30) comprises: A first scissor blade (2), which is fixedly disposed in the housing (22) and has a first blade portion; A second scissor blade (3) which is detachably arranged on the first scissor blade (2) via a locking member (4) and has a second blade portion; The locking member (4) is arranged along a direction perpendicular to the second scissor blade (3) and can move in the direction; the locking member (4) has a first position and a second position in the moving direction; the locking member (4) is provided with a locking portion (8); When the locking member (4) is in the first position, the locking portion (8) is located in the locking groove (7) of the second scissor blade (3), and the second scissor blade (3) rotates around the locking portion (8); When the locking member (4) is in the second position, the locking portion (8) is disengaged from the locking groove (7) of the second scissor blade (3), and the second scissor blade (3) can be moved out; A driving member (5) having a front end rotatably disposed on the locking member (4) and a rear end gear connected to the transmission assembly (29); a fitting portion (13) is disposed on one side of the driving member (5), and the fitting portion (13) is engaged with the insertion end of the second scissor blade (3) and transmits the power; A fixing member (6) is used to press the driving member (5) and the second scissor blade (3) onto the first scissor blade (2).

2. The electric scissors with quick-detachable blades according to claim 1, characterized in that: The cutter head assembly (30) further comprises a return spring (21), the upper end of which abuts against the locking member (4) and the lower end of which abuts against the inner wall of the housing (22), so as to ensure that the locking member (4) always has a tendency to move from the second position to the first position.

3. The electric scissors with quick-detachable blades according to claim 2, characterized in that: The first scissor blade (2) is provided with a locking hole 1 (9), the driving member (5) is provided with a locking hole 2 (10), and the fixing member (6) is provided with a locking hole 3 (11); The locking member (4) can pass through the first locking hole (9), the locking groove (7), the second locking hole (10) and the third locking hole (11) in sequence from bottom to top and be clamped on the first scissor blade (2).

4. The electric scissors with quick-detachable blades according to claim 3, characterized in that: A limiting portion (18) is formed protrudingly on the circumferential side of the lower portion of the locking member (4), and the limiting portion (18) is movably abutted against the lower end surface of the first scissor blade (2).

5. The electric scissors with quick-detachable blades according to claim 4, characterized in that: A guide portion (16) is formed at the rear end of the second scissor blade (3).

6. The electric scissors with quick-detachable blades according to claim 5, characterized in that: A limiting post (17) is protrudingly provided on the lower end surface of the driving member (5); The rear end of the second scissor blade (3) movably abuts against the limiting column (17).

7. The electric scissors with quick-detachable blades according to claim 6, characterized in that: The rear end of the driving member (5) is formed with gear teeth (14), and the gear teeth (14) are used to receive power provided by the transmission assembly (29).

8. The electric scissors with quick-detachable blades according to claim 7, characterized in that: The two ends of the fixing member (6) are detachably arranged on the first scissor blade (2) or the housing (22) via screws (15).

9. The electric scissors with quick-detachable blades according to claim 8, characterized in that: It also comprises a switch member (19), wherein the switch member (19) is arranged on the upper end surface of the locking member (4).

10. The electric scissors with quick-detachable blades according to claim 9, characterized in that: It also comprises a gasket (20), wherein the gasket (20) is arranged between the fixing member (6) and the driving member (5).

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