Electric pruning shears

Abstract

The electric pruning shears comprise a shell, a shearing assembly installed at one end of the shell, a driving piece and a controller, the driving piece and the controller are installed in the shell, the shearing assembly comprises a fixed blade and a movable blade, the driving piece is connected with a transmission assembly, the transmission assembly is connected with the movable blade, and the controller can control the movable blade to rotate to form a shearing area; the electric pruning shears further comprise a temperature sensor and a distance sensor which are installed on the shell in a matched mode, and the detection range of the temperature sensor and the detection range of the distance sensor both cover the shearing area. When the distance sensor detects an object in the shearing area and the temperature sensor detects that the temperature in the shearing area exceeds a preset threshold value, the controller controls the movable blade to stop closing. According to the electric pruning shears, the detection accuracy is improved, and the hands of an operator can be prevented from being accidentally injured by the electric pruning shears. Meanwhile, the anti-hand-cutting function of the electric pruning shears is non-contact, so that the use safety is enhanced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electric tools, and particularly relates to an electric pruning shears. BACKGROUND

[0002] The electric pruning shears is a kind of gardening tool driven by electricity, which is used for pruning branches and shrubs. In the prior art, the electric pruning shears is controlled to stop closing the blade by the circuit of the designed anti-shearing hand when the hand touches the blade, so as to avoid causing harm to the human body. The above-mentioned mode is a contact type, and the hand is still at risk of being injured after touching the blade.

[0003] Therefore, in view of the above technical problems, it is necessary to provide an electric pruning shears. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to provide an electric pruning shears which can alleviate the problem of the risk of injury in the prior art by using a contact type to realize the anti-shearing hand function of the electric pruning shears.

[0005] In order to achieve the above-mentioned purpose, the technical scheme provided by an embodiment of the present application is as follows:

[0006] An electric pruning shears comprises a shell, a shearing assembly installed at one end of the shell, and a driving member and a controller installed in the shell, the shearing assembly comprises a fixed blade and a movable blade, the driving member is connected with a transmission assembly, the transmission assembly is connected with the movable blade, and the controller can control the movable blade to rotate to form a shearing area; the electric pruning shears further comprises a temperature sensor and a distance sensor which are cooperatively installed on the shell, and the detection ranges of the temperature sensor and the distance sensor both cover the shearing area.

[0007] When the distance sensor detects an object in the shearing area and the temperature sensor detects that the temperature in the shearing area exceeds a preset threshold value, the controller controls the movable blade to stop closing.

[0008] In one or more embodiments of the present application, when the distance sensor detects an object in the shearing area and the temperature sensor detects that the temperature in the shearing area exceeds a preset threshold value, the controller can control the movable blade to rotate in a direction away from the fixed blade.

[0009] In one or more embodiments of the present application, the moving blade and the fixed blade include a first opening angle and a second opening angle, the first opening angle being greater than the second opening angle; the temperature sensor is adjustably arranged to cover a detection range corresponding to a shearing area of the fixed blade and the moving blade at the first opening angle or the second opening angle.

[0010] In one or more embodiments of the present application, the electric pruning shears further include a toggle installed on the housing, the toggle being installed in cooperation with the temperature sensor, the toggle being capable of shielding the detection range of the temperature sensor; and / or, the toggle is a shielding member.

[0011] In one or more embodiments of the present application, the toggle includes a fixed segment fixed relative to the housing, and a free segment opposite to the fixed segment;

[0012] The electric pruning shears further include an adjusting member movably connected to the housing, the adjusting member including an abutting portion abutting against a side of the toggle away from the housing, the toggle having a tendency to abut against the abutting portion, the adjusting member being operable to move the abutting portion to make the free segment approach or move away from the temperature sensor.

[0013] In one or more embodiments of the present application, the adjusting member includes a fastener threadedly connected to the housing, the abutting portion being located on an end of the fastener away from the housing.

[0014] In one or more embodiments of the present application, the toggle includes a body segment between the fixed segment and the free segment, the free segment being bent away from the housing from the body segment, the body segment being adapted to the shape of the temperature sensor.

[0015] In one or more embodiments of the present application, the housing is provided with a plug-in interface, the fixed segment being plug-in connected to the plug-in interface; and / or,

[0016] An end of the fixed segment away from the body segment is further provided with a hook segment, the housing being correspondingly provided with a limiting portion inside, the hook segment being hook-connected to the limiting portion.

[0017] In one or more embodiments of the present application, the electric pruning shears further include a reset member installed on the housing, the reset member being capable of driving the toggle to abut against the adjusting member.

[0018] In one or more embodiments of the present application, the electric pruning shears further include a bevel gear connected to the transmission assembly, the bevel gear being connected to a swing gear, the moving blade being connected to the swing gear and rotating with the swing gear.

[0019] Compared with the prior art, the electric pruning shears can detect the shearing area between the fixed blade and the movable blade in real time through the temperature sensor and the distance sensor. Only when the distance sensor detects an object in the shearing area and the temperature sensor detects that the temperature in the shearing area exceeds a preset threshold, the movable blade of the electric pruning shears stops closing, so that the detection accuracy can be improved, and the electric pruning shears can effectively prevent the operator's hand from being injured. At the same time, the anti-hand shearing function of the electric pruning shears is non-contact, which further enhances the safety of use. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 The structure schematic diagram of the electric pruning shears in an embodiment of the present application;

[0022] Figure 2 The internal structure schematic diagram of the electric pruning shears in an embodiment of the present application;

[0023] Figure 3 The schematic diagram of the fixed blade and the movable blade in a first opening angle in an embodiment of the present application;

[0024] Figure 4 The schematic diagram of the fixed blade and the movable blade in a second opening angle in an embodiment of the present application;

[0025] Figure 5 The cross-sectional structure schematic diagram of the electric pruning shears in an embodiment of the present application;

[0026] Figure 6 The cross-sectional structure schematic diagram of the electric pruning shears in an embodiment of the present application; Figure 5 The enlarged schematic diagram of A in the above figure.

[0027] Main figure mark explanation:

[0028] 1, housing; 11, plug-in port; 12, limiting part; 2, shearing assembly; 21, fixed blade; 22, movable blade; 3, driving piece; 4, controller; 5, transmission assembly; 6, temperature sensor; 7, distance sensor; 81, bevel gear; 82, transmission gear; 83, swing gear; 9, push piece; 91, fixed section; 92, free section; 93, body section; 94, hook section; 10, adjusting piece; 101, abutting part. DETAILED DESCRIPTION

[0029] In order to make the person skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should fall within the scope of protection of the present application.

[0030] With reference to Figure 1 and Figure 2 , the electric pruning shears in an embodiment of the present application include a housing 1, a shearing assembly 2 mounted at one end of the housing 1, and a driving member 3 and a controller 4 mounted in the housing 1, the shearing assembly 2 can include a fixed blade 21 and a movable blade 22, the driving member 3 can be connected with a transmission assembly 5, the transmission assembly 5 can be connected with the movable blade 22, and the controller 4 can control the movable blade 22 to rotate to form a shearing area. In the embodiment, the controller 4 can control the movable blade 22 to rotate relative to the fixed blade 21 to open the movable blade 22 to form the shearing area, and the controller 4 can also control the movable blade 22 to rotate towards the movable blade 22 to close to prune branches.

[0031] With reference to Figure 1 and Figure 2 , the electric pruning shears in the embodiment further include a temperature sensor 6 and a distance sensor 7 cooperatively mounted on the housing 1, and the detection ranges of the temperature sensor 6 and the distance sensor 7 both cover the shearing area; wherein when the distance sensor 7 detects an object in the shearing area and the temperature sensor 6 detects that the temperature in the shearing area exceeds a preset threshold, the controller 4 controls the movable blade 22 to stop closing. Wherein the preset threshold of the temperature is specifically set according to the human body temperature.

[0032] If only the temperature sensor 6 is provided or only the distance sensor 7 is provided, at this time the electric pruning shears cannot accurately determine whether the object in the shearing area is a branch or a hand or other object. Only when the distance sensor 7 detects an object in the shearing area and the temperature sensor 6 detects that the temperature in the shearing area exceeds a preset threshold, the movable blade 22 of the electric pruning shears stops closing, so that the detection accuracy can be improved, and the electric pruning shears can effectively prevent the hands of the operator from being injured.

[0033] At the same time, compared with the prior art, the operator needs to touch the fixed blade 21 or the movable blade 22 to control the movable blade 22 to stop closing to realize the hand protection function. The hand protection function of the electric pruning shears in the embodiment is non-contact, which further enhances the safety of use.

[0034] In an optional embodiment, when the distance sensor 7 detects an object in the shearing area and the temperature sensor 6 detects that the temperature in the shearing area exceeds a preset threshold, the controller 4 controls the movable blade 22 to rotate away from the fixed blade 21, thereby releasing the sheared object. By controlling the movable blade 22 to rotate away from the fixed blade 21, it can further ensure that the fixed blade 21 or the movable blade 22 will not accidentally injure the operator's hand.

[0035] With reference to Figure 2 In an optional embodiment, the electric pruning shears can further include a bevel gear 81 connected with the transmission assembly 5. The bevel gear 81 can be connected with a transmission gear 82, and the transmission gear 82 can be connected with a swing gear 83. The movable blade 22 can be connected to the swing gear 83 and rotate with the swing gear 83. Therefore, the controller 4 can control the driving member 3 to operate, and drive the movable blade 22 to move closer to or away from the fixed blade 21 through the transmission assembly 5, the bevel gear 81, the transmission gear 82, and the swing gear 83, so as to complete the pruning work on the branches.

[0036] With reference to Figure 3 And Figure 4 The movable blade 22 and the fixed blade 21 can include a first opening angle (as shown in Figure 3 ) and a second opening angle (as shown in Figure 4 ). The first opening angle can be greater than the second opening angle. The temperature sensor 6 can be adjusted so that its detection range covers the shearing area corresponding to the first opening angle or the second opening angle of the movable blade 22 and the fixed blade 21. Among them, Figure 3 And Figure 4 The dotted line in the above figures shows the detection range of the temperature sensor 6 in different situations.

[0037] It should be noted that, in order to save electricity, the opening angles of the movable blade 22 and the fixed blade 21 can be adjusted when pruning thick branches and thin branches. It can be understood that the opening angles of the movable blade 22 and the fixed blade 21 need to be large when pruning thick branches, and the opening angles of the movable blade 22 and the fixed blade 21 need to be small when pruning thin branches to save electricity. In this embodiment, the movable blade 22 and the fixed blade 21 can be used to prune thick branches when the first opening angle is opened, and the movable blade 22 and the fixed blade 21 can be used to prune thin branches when the second opening angle is opened.

[0038] With reference to Figure 3 And Figure 4 For the convenience of subsequent description, in this embodiment, the shearing area corresponding to the first opening angle of the movable blade 22 and the fixed blade 21 is defined as the first shearing area, and the shearing area corresponding to the second opening angle of the movable blade 22 and the fixed blade 21 is defined as the second shearing area. It can be understood that, since the first opening angle is greater than the second opening angle, the first shearing area is greater than the second shearing area.

[0039] In combination withFigure 3 And Figure 4 In the case that the movable blade 22 and the fixed blade 21 are opened to the second opening angle to trim the thin branch, if the detection range of the temperature sensor 6 still covers the first cutting area at this time, when the operator places his hand in the first cutting area and outside the second cutting area, the electric trimmer may misjudge that the operator's hand is between the cutting edges of the fixed blade 21 and the movable blade 22, and thus does not perform the trimming work. In fact, the electric trimmer needs to perform the trimming work of the thin branch at this time. Therefore, in this case, the detection range of the temperature sensor 6 can be correspondingly adjusted to cover only the second cutting area. Thus, the electric trimmer does not perform the trimming work only when the operator's hand is in the second cutting area, and continues to perform the trimming work when the operator's hand is in the non-intersection area of the first cutting area and the second cutting area, so as to ensure the effective use of the electric trimmer.

[0040] Referring to Figure 3 And Figure 4 The electric trimmer in an embodiment of the present application can further include a toggle 9 mounted to the housing 1, the toggle 9 being mounted in cooperation with the temperature sensor 6, and the toggle 9 being capable of shielding the detection range of the temperature sensor 6. In this embodiment, the toggle 9 can be a shielding member. The toggle 9 can be made of a metal material having electrical conductivity, such as copper, aluminum or the like, or can be made of other materials having shielding effect.

[0041] Referring to Figure 5 And Figure 6 The toggle 9 can include a fixed segment 91 fixed relative to the housing 1, and a free segment 92 opposite to the fixed segment 91. The electric trimmer in this embodiment can further include an adjusting member 10 movably connected to the housing 1, the adjusting member 10 can include an abutting portion 101 abutting against a side of the toggle 9 away from the housing 1, the toggle 9 has a tendency to approach the abutting portion 101, and the adjusting member 10 is operable to move the abutting portion 101 to make the free segment 92 approach or move away from the temperature sensor 6. In this embodiment, the toggle 9 can also be made of a material having elastic potential to abut against the abutting portion 101.

[0042] In this embodiment, the housing 1 can be provided with a plug-in interface 11, and the fixed segment 91 is plugged into the plug-in interface 11. The adjusting member 10 is operable to move to drive the toggle 9 to move, so that the free segment 92 of the toggle 9 can pivot relative to the housing 1 to adjust the position of the toggle 9 relative to the temperature sensor 6, thereby shielding the detection range of the temperature sensor 6. In other embodiments, the toggle 9 can also slide relative to the housing 1 to adjust the position of the free segment 92, thereby shielding the detection range of the temperature sensor 6. Specifically, the toggle 9 can be made to slide towards or away from the movable blade 22. In combination with Figure 3 And Figure 4It can be understood that the free section 92 is located at different positions, and the detection range of the temperature adjusting sensor 6 can be shielded to form different sizes.

[0043] With reference to Figure 5 And Figure 6 The adjusting part 10 comprises a fastener which is screwed with the shell 1, and the abutting part 101 is located at the end of the fastener which is away from the shell 1. In the embodiment, the body section 93 of the dial 9 is provided with a through hole, and the fastener is arranged in the through hole and screwed with the shell 1. Specifically, the fastener can be a screw, and the abutting part 101 is located on the screw cap. By rotating the fastener, the abutting part 101 can be made to approach or be away from the shell 1, so as to drive the free section 92 of the dial 9 to approach or be away from the temperature sensor 6, so as to shield the detection range of the temperature adjusting sensor 6.

[0044] With reference to Figure 6 In an optional embodiment, the dial 9 can further comprise a body section 93 located between the fixed section 91 and the free section 92, and the free section 92 is bent from the body section 93 in a direction away from the shell 1. The body section 93 is matched with the shape of the temperature sensor 6. By adjusting the position of the free section 92, the detection range of the temperature sensor 6 can be adjusted.

[0045] With reference to Figure 6 In an optional embodiment, the fixed section 91 can be further provided with a hook section 94 at an end away from the body section 93, and the shell 1 is correspondingly provided with a limiting part 12, and the hook section 94 is hooked on the limiting part 12. In the embodiment, the limiting part 12 can be a limiting block, and the hook section 94 is correspondingly hooked on the limiting block, so as to prevent the dial 9 from being separated from the insertion port 11 along the extension direction of the insertion port 11, and to ensure the firmness of the installation of the dial 9 and the shell 1. In other embodiments, the limiting part 12 can also be a limiting groove, and the hook section 94 is arranged in the limiting groove.

[0046] With reference to Figure 6 In an optional embodiment, the dial 9 can also not be made of a material with elastic performance, and a reset part can be arranged in the shell 1, and the reset part can drive the dial 9 to abut against the adjusting part 10. The reset part can be selected from materials with elastic potential, such as springs, torsional springs, etc.

[0047] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0048] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An electric pruning shear, characterized in that, The electric pruning shears comprises a housing (1), a shearing assembly (2) mounted on one end of the housing (1), a driving member (3) and a controller (4) mounted in the housing (1), the shearing assembly (2) comprises a fixed blade (21) and a movable blade (22), the driving member (3) is connected with a transmission assembly (5), the transmission assembly (5) is connected with the movable blade (22), the controller (4) can control the movable blade (22) to rotate to form a shearing area; further comprising a temperature sensor (6) and a distance sensor (7) mounted on the housing (1), the detection range of the temperature sensor (6) and the distance sensor (7) covers the shearing area; When the distance sensor (7) detects an object in the shearing area and the temperature sensor (6) detects that the temperature in the shearing area exceeds a preset threshold, the controller (4) controls the movable blade (22) to stop closing.

2. The electrically powered pruning shears according to claim 1, characterized in that When the distance sensor (7) detects an object in the shearing area and the temperature sensor (6) detects that the temperature in the shearing area exceeds a preset threshold, the controller (4) can control the movable blade (22) to rotate away from the fixed blade (21).

3. The electrically powered pruning shears of claim 1, wherein, The movable blade (22) and the fixed blade (21) comprise a first opening angle and a second opening angle, the first opening angle is greater than the second opening angle; the detection range of the temperature sensor (6) can be adjusted to cover the shearing area corresponding to the first opening angle or the second opening angle of the fixed blade (21) and the movable blade (22).

4. The electrically powered pruning shears of claim 2, wherein, Further comprising a dial (9) mounted on the housing (1), the dial (9) is mounted in cooperation with the temperature sensor (6), the dial (9) can shield and adjust the detection range of the temperature sensor (6); and / or, the dial (9) is a shielding member.

5. The electrically powered pruning shears of claim 4, wherein, The dial (9) comprises a fixed segment (91) fixed relative to the housing (1) and a free segment (92) opposite to the fixed segment (91); The electric pruning shears further comprises an adjusting member (10) movably connected with the housing (1), the adjusting member (10) comprises an abutting portion (101) abutting against a side of the dial (9) away from the housing (1), the dial (9) has a tendency to abut against the abutting portion (101), the adjusting member (10) can be operated to move the abutting portion (101) to make the free segment (92) close to or away from the temperature sensor (6).

6. The electrically powered pruning shears of claim 5, wherein, The adjusting member (10) comprises a fastener threadedly connected with the housing (1), and the abutting portion (101) is located on an end of the fastener away from the housing (1).

7. The electrically powered pruning shears of claim 5, wherein, The dial (9) comprises a body segment (93) between the fixed segment (91) and the free segment (92), the free segment (92) is bent away from the housing (1) from the body segment (93), and the body segment (93) is adapted to the shape of the temperature sensor (6).

8. The electrically powered pruning shears of claim 7, wherein, The shell (1) is provided with a plug interface (11), and the fixed section (91) is plugged into the plug interface (11); and / or, The fixed section (91) is further provided with a hook section (94) at one end away from the body section (93), and the shell (1) is correspondingly provided with a limiting portion (12) inside, and the hook section (94) is hooked on the limiting portion (12).

9. The electrically powered pruning shears of claim 5, wherein, A reset member is further installed on the shell (1), and the reset member can drive the switch plate (9) to abut against the adjusting member (10).

10. The electrically powered pruning shear of claim 1, wherein, A bevel gear (81) connected with the transmission assembly (5) is further included, the bevel gear (81) is connected with a transmission gear (82), the transmission gear (82) is connected with a swing gear (83), and the moving blade (22) is connected with the swing gear (83) and rotates with the swing gear (83).

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