Electric pruning shears

Abstract

The utility model discloses electric pruning shears which comprise a shell, a shearing assembly installed at one end of the shell in a matched mode, a controller installed in the shell and a driving piece, the driving piece is connected with a transmission assembly, the transmission assembly is connected with a bevel gear, the bevel gear is connected with a transmission gear, the transmission gear is connected with a swing gear, and the swing gear is connected with a motor. The shearing assembly comprises a movable blade and a fixed blade, the movable blade is connected to the swing teeth and rotates along with the swing teeth, the controller is located at the end, away from the shearing assembly, of the driving piece, and the electric pruning shears further comprise a sealing piece arranged in the shell. The sealing piece is located between the shearing assembly and the driving piece. According to the electric pruning shears, the sealing piece is arranged between the shearing assembly in the shell and the driving piece, liquid entering from the gap between the shearing assembly and the shell can be prevented from flowing to the driving piece or the controller, and therefore the situation that the electric pruning shears lose efficacy can be reduced.

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 generally comprise a housing, a shearing assembly installed in cooperation with the housing, and a controller for controlling the operation of the shearing assembly. When pruning branches, the fixed blade and the movable blade of the shearing assembly move relative to each other to complete the pruning work of the branches. When the electric pruning shears are used in rainy days, water often enters the housing to cause the machine to fail. The reason is that the movable blade of the shearing assembly moves relative to the housing, so that the movable blade and the housing cannot be completely sealed, and the rainwater accumulated in the housing can easily cause damage to the electronic devices.

[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 purpose of the present application is to provide an electric pruning shears which can slow down the problem of rainwater entering the machine from the movable blade and causing the machine to fail and damage.

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

[0006] An electric pruning shears comprises a housing, a shearing assembly installed in cooperation with one end of the housing, a controller and a driving member installed in the housing, the driving member is connected with a transmission assembly, the transmission assembly is connected with a bevel gear, the bevel gear is connected with a transmission gear, the transmission gear is connected with a swing gear, the shearing assembly comprises a movable blade and a fixed blade, the movable blade is connected with the swing gear and rotates with the swing gear, the controller is located at the end of the driving member away from the shearing assembly, and the electric pruning shears further comprises a sealing member arranged in the housing, the sealing member is located between the shearing assembly and the driving member.

[0007] In one or more embodiments of the present application, an inner wall of the housing is provided with a first flow channel through which liquid can pass and a first liquid discharge hole communicating the first flow channel with the outside.

[0008] In one or more embodiments of the present application, the electric pruning shears further comprise a battery assembly installed in cooperation with the end of the housing away from the shearing assembly, the first flow channel is located in the housing and extends along the length direction of the housing, the first liquid discharge hole is formed in the housing and extends to the battery assembly, the side of the battery assembly cooperating with the housing is provided with a liquid discharge groove corresponding to the first liquid discharge hole, and the liquid discharge groove communicates with the outside.

[0009] In one or more embodiments of the present application, the inner wall of the housing is provided with a reinforcing rib, and a through hole is formed in the reinforcing rib; the through hole and the outer side wall of the driving member form the first flow channel.

[0010] In one or more embodiments of the present application, the housing is provided with a second flow channel on the side of the sealing member away from the driving member, and the housing is provided with a second liquid discharge hole in communication with the second flow channel; and / or,

[0011] The electric pruning shears further comprise a pressure regulating member, which is operable to apply positive pressure and / or negative pressure to the second flow channel.

[0012] In one or more embodiments of the present application, the electric pruning shears further comprise a trigger for controlling the operation of the shearing assembly, and the housing is provided with an auxiliary opening in communication with the second flow channel; the trigger comprises a first position in which the trigger is pivotable to be close to the housing;

[0013] When the trigger is in the first position, the trigger abuts against the pressure regulating member in the auxiliary opening, and positive pressure is generated in the second flow channel.

[0014] In one or more embodiments of the present application, the pressure regulating member is arranged on the trigger.

[0015] In one or more embodiments of the present application, the electric pruning shears further comprise a trigger for controlling the operation of the shearing assembly, and the trigger comprises a first position in which the trigger is pivotable to be close to the housing, and a second position in which the trigger is pivotable to be away from the housing; the pressure regulating member is arranged on the trigger.

[0016] When the trigger is switched from the first position to the second position by pivoting, the trigger can remove the pressure regulating member from the second liquid discharge hole, and negative pressure is generated in the second flow channel.

[0017] In one or more embodiments of the present application, the second liquid discharge hole is located on the side of the sealing member away from the driving member and close to the trigger.

[0018] In one or more embodiments of the present application, the electric pruning shears further comprise a reset member cooperatively arranged with the trigger, and when the trigger is triggered, the reset member is deformed and has a tendency to guide the trigger to pivot from the first position to the second position.

[0019] Compared with the prior art, the electric pruning shears of the present application can block the liquid flowing into the driving member or the controller from the gap between the shearing assembly and the driving member in the housing by arranging the sealing member between the shearing assembly and the driving member in the housing, thereby reducing the occurrence of failure of the electric pruning shears. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of 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 for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

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

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

[0023] Figure 3 Part structure diagram of the electric pruning shears in an embodiment of the present application;

[0024] Figure 4 First row of liquid discharge holes on the shell of the electric pruning shears in an embodiment of the present application;

[0025] Figure 5 Battery assembly of the electric pruning shears in an embodiment of the present application;

[0026] Figure 6 Part structure diagram of the electric pruning shears in an embodiment of the present application;

[0027] Figure 7 is Figure 6 Enlarged diagram of A in FIG. 6.

[0028] Explanation of main reference numerals:

[0029] 1, shell; 11, first flow channel; 12, first liquid discharge hole; 13, reinforcing rib; 14, second flow channel; 15, second liquid discharge hole; 16, auxiliary opening; 2, shearing assembly; 21, moving blade; 22, fixed blade; 3, controller; 4, driving member; 5, transmission assembly; 61, bevel gear; 62, transmission gear; 63, swing gear; 7, sealing member; 8, battery assembly; 81, liquid discharge groove; 9, pressure regulating member; 10, trigger. DETAILED DESCRIPTION

[0030] In order to make the technical personnel 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 with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor should be within the scope of protection of the present application.

[0031] Embodiment 1

[0032] With reference to Figure 1 and Figure 2 , the electric pruning shears in the embodiment include a housing 1, a shearing assembly 2 installed at one end of the housing 1, a controller 3 installed in the housing 1, a driving member 4, and a sealing member 7. The driving member 4 is connected with a transmission assembly 5, the transmission assembly 5 is connected with a bevel gear 61, the bevel gear 61 is connected with a transmission gear 62, the transmission gear 62 is connected with a swing gear 63, the shearing assembly 2 includes a moving blade 21 and a fixed blade 22, the moving blade 21 is connected with the swing gear 63 and rotates with the swing gear 63, the controller 3 is located at the end of the driving member 4 away from the shearing assembly 2, and the sealing member 7 can be located between the shearing assembly 2 and the driving member 4. Specifically, the sealing member 7 can be an annular member made of rubber or EVA material. By arranging the sealing member 7 inside the housing 1, the driving member 4 or the controller 3 and other structures inside the housing 1 can be prevented from being soaked by liquids such as rainwater, thereby reducing the possibility of damage and maintaining the normal operation of the electric pruning shears.

[0033] With reference to Figure 1 and Figure 3 , the inner wall of the housing 1 can be provided with a first flow channel 11 through which liquid can pass and a first liquid discharge hole 12 which communicates with the first flow channel 11 and the outside. When water enters the inside of the housing 1, the water can flow along the first flow channel 11 and be discharged from the first liquid discharge hole 12, thereby maintaining the normal operation of the electric pruning shears. The first flow channel 11 is arranged along the inner wall of the housing 1.

[0034] With reference to Figure 1 and Figure 3 , in the embodiment, the electric pruning shears can further include a battery assembly 8 installed at the end of the housing 1 away from the shearing assembly 2, the first flow channel 11 is located in the housing 1 and extends along the length direction of the housing 1, the first liquid discharge hole 12 can be formed in the housing 1 and extends to the battery assembly 8 (see Figure 4 ), the side of the battery assembly 8 matched with the housing 1 can be provided with a liquid discharge groove 81 corresponding to the first liquid discharge hole 12 (see Figure 5 ), and the liquid discharge groove 81 communicates with the outside. In the embodiment, the end surface of the housing 1 away from the shearing assembly 2 can be attached to the end surface of the battery assembly 8, so that the first liquid discharge hole 12 and the liquid discharge groove 81 are in butt joint communication.

[0035] When water accumulates on the side of the seal 7 in the housing 1 facing the shearing assembly 2, the water can seep to the side of the seal 7 facing the driving member 4 through the gap between the seal 7 and the housing 1. At this time, the water flow can flow to the first drainage hole 12 through the first flow channel 11 and finally flow out from the drainage groove 81. Therefore, the cooperation of the first flow channel 11 and the first drainage hole 12 can guide the seepage water to flow out, thereby maintaining the normal operation of the electric pruning shears.

[0036] With reference to Figure 3 , the inner wall of the housing 1 can be provided with a reinforcing rib 13, and a through hole is formed in the reinforcing rib 13. By forming the through hole in the reinforcing rib 13, the through hole and the outer side wall of the driving member 4 can form the first flow channel 11, so that part of the seepage water can flow to the first drainage hole 12 through the first flow channel 11. When the part of the seepage water flows through the first flow channel 11, the heat absorption of the water flow can also cool the driving member 4, thereby ensuring the operation efficiency of the driving member 4.

[0037] In the embodiment, the seal 7 can be annular and sleeved on the outer periphery of the transmission assembly 5. The outer peripheral wall of the annular seal 7 can also abut against the reinforcing rib 13 to limit and fix the seal 7 in the housing 1, and can as much as possible improve the sealing between the seal 7 and the housing 1.

[0038] Therefore, the electric pruning shears of the embodiment can block the water from entering the inside of the housing 1 through the seal 7, so as to prevent the damage to the electronic devices such as the driving member 4, the controller 3, the battery assembly 8 and the like. If there is seepage water between the seal 7 and the housing 1, the seepage water can also be discharged through the cooperation of the first flow channel 11, the first drainage hole 12 and the drainage groove 81, so as to maintain the normal use of the electric pruning shears.

[0039] Embodiment 2

[0040] With reference to Figure 1 , Figure 2 and Figure 6 , the electric pruning shears of the embodiment include a housing 1, a shearing assembly 2 installed at one end of the housing 1, a controller 3 installed in the housing 1, a driving member 4, and a seal 7. The driving member 4 is connected with a transmission assembly 5, the transmission assembly 5 is connected with a bevel gear 61, the bevel gear 61 is connected with a transmission gear 62, the transmission gear 62 is connected with a swing gear 63, the shearing assembly 2 includes a moving blade 21 and a fixed blade 22, the moving blade 21 is connected with the swing gear 63 and rotates with the swing gear 63, the controller 3 is located at the end of the driving member 4 away from the shearing assembly 2, and the seal 7 can be located between the shearing assembly 2 and the driving member 4. The seal 7 in the embodiment is the same as the seal 7 in the embodiment 1. By arranging the seal 7 in the housing 1, the liquid such as rainwater can be blocked from wetting the structures such as the driving member 4 or the controller 3 in the housing 1, thereby reducing the possibility of damage and maintaining the normal operation of the electric pruning shears.

[0041] With reference to Figure 6 and Figure 7 , the housing 1 can be provided with a second flow channel 14 for liquid to pass through on the side of the seal 7 away from the driving member 4, and the housing 1 is provided with a second liquid discharge hole 15 in communication with the second flow channel 14. The second flow channel 14 can be arranged along the inner wall of the housing 1. Therefore, when there is water accumulation in the housing 1, the water can be directly discharged through the second liquid discharge hole 15, so as to reduce the damage caused by the water accumulation to the driving member 4 or the controller 3 and other structures in the housing 1.

[0042] Further, the electric pruning shears of the embodiment can further comprise a pressure regulating member 9, which is operable to apply positive pressure and / or negative pressure to the second flow channel 14. By arranging the pressure regulating member 9, the water accumulation in the housing 1 can be actively discharged, so as to maintain the normal operation of the electric pruning shears. It can be understood that in other embodiments, the pressure regulating member 9 can also not be arranged. When there is water accumulation in the housing 1, the water can be directly discharged through the second liquid discharge hole 15. In the embodiment, the arrangement of the pressure regulating member 9 can improve the discharge efficiency of the water accumulation in the housing 1.

[0043] With reference to Figure 6 and Figure 7 , in an optional embodiment, the electric pruning shears can further comprise a trigger 10 for controlling the operation of the shearing assembly 2, and the housing 1 is provided with an auxiliary opening 16 in communication with the second flow channel 14; the trigger 10 comprises a first position close to the housing 1 and is operable to be pivoted to the first position; when the trigger 10 is in the first position, the trigger 10 abuts against the pressure regulating member 9 at the auxiliary opening 16, so that positive pressure is generated in the second flow channel 14. The pressure regulating member 9 can be arranged as a suction cup, which can abut against the auxiliary opening 16 to apply positive pressure to the second flow channel 14, so that the water in the second flow channel 14 is discharged from the second liquid discharge hole 15.

[0044] It can be understood that in combination with Figure 2 , due to the arrangement of the bevel gear 61, the transmission gear 62 and the swing gear 63 in the housing 1, the resistance of the air in the housing 1 to move to the gap between the housing 1 and the shearing assembly 2 is increased, so that the internal water can be discharged through the second liquid discharge hole 15 under positive pressure. In addition, the second liquid discharge hole 15 is located between the auxiliary opening 16 and the seal 7. The position of the second liquid discharge hole 15 is closer to the auxiliary opening 16 than the gap between the housing 1 and the shearing assembly 2, and the water flow can directly flow to the second liquid discharge hole 15 without overcoming the gravity. Therefore, the water accumulation in the housing 1 can be more easily and effectively discharged through the second liquid discharge hole 15.

[0045] With reference to Figure 7The pressure regulating member 9 can be arranged on the trigger 10. Thus, when the trigger 10 is pulled, the pressure regulating member 9 is moved to apply positive pressure to the second flow passage 14, so that the accumulated water is discharged from the second drain hole 15. It is appreciated that in other embodiments, the position of the pressure regulating member 9 can be arranged in cooperation with the auxiliary opening 16. When the trigger 10 is in the first position, the pressure regulating member 9 at the corresponding position is arranged to abut against the auxiliary opening 16 to apply positive pressure to the second flow passage 14.

[0046] With reference to Figure 7 In the present embodiment, the second drain hole 15 is arranged on the side of the sealing member 7 away from the driving member 4 and close to the trigger 10. Preferably, the second drain hole 15 is close to the upper edge of the sealing member 7. When the electric pruning shears are in the holding and using position, the position of the second drain hole 15 is at the lowest point of the accumulated water, so that the discharge efficiency of the liquid is improved.

[0047] With reference to Figure 6 and Figure 7 Different from the above, in an alternative embodiment, the trigger 10 can include a first position pivotably close to the housing 1 and a second position pivotably away from the housing 1, and the pressure regulating member 9 can be arranged on the trigger 10. When the trigger 10 is switched from the first position to the second position, the trigger 10 removes the pressure regulating member 9 from the second drain hole 15, and negative pressure is generated in the second flow passage 14. Thus, when the trigger 10 is pivoted from the first position to the second position, the pressure regulating member 9 can make the housing 1 in a negative pressure environment, so that the accumulated water is discharged from the second drain hole 15.

[0048] With reference to Figure 6 Further, the electric pruning shears can further include a reset member arranged in cooperation with the trigger 10. When the trigger 10 is triggered, the reset member is deformed and has a tendency to guide the trigger 10 to pivot from the first position to the second position. In the present embodiment, the reset member can be arranged as a torsion spring, a leaf spring or a spring. The torsion spring is arranged in cooperation with the housing 1 and the trigger 10 to guide the trigger 10 to pivot from the first position to the second position.

[0049] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and this application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. Therefore, the embodiments should be considered as exemplary and not restrictive, and the scope of the application is defined by the appended claims rather than the above description, and it is intended to include all changes falling within the meaning and scope of equivalents of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0050] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. An electric pruning shears, comprising a housing (1), a shearing assembly (2) fitted and installed at one end of the housing (1), a controller (3) and a driving member (4) installed in the housing (1), the driving member (4) being connected with a transmission assembly (5), the transmission assembly (5) being connected with a bevel gear (61), the bevel gear (61) being connected with a transmission gear (62), the transmission gear (62) being connected with a swing gear (63), the shearing assembly (2) comprising a moving blade (21) and a fixed blade (22), the moving blade (21) being connected with the swing gear (63) and rotating along with the swing gear (63), the controller (3) being located at an end of the driving member (4) away from the shearing assembly (2), characterized in that, The electric pruning shears further comprise a sealing member (7) arranged in the housing (1) and located between the shearing assembly (2) and the driving member (4).

2. The electrically powered pruning shears according to claim 1, characterized in that The inner wall of the housing (1) is provided with a first flow channel (11) through which liquid can pass and a first liquid discharge hole (12) which is in communication with the first flow channel (11) and the outside.

3. The electrically powered pruning shears of claim 2, wherein, The electric pruning shears further comprise a battery assembly (8) which is arranged in the housing (1) away from the shearing assembly (2), the first flow channel (11) is arranged in the housing (1) and extends along the length direction of the housing (1), the first liquid discharge hole (12) is formed in the housing (1) and extends to the battery assembly (8), the side of the battery assembly (8) which is arranged in the housing (1) is provided with a liquid discharge groove (81) which corresponds to the first liquid discharge hole (12) and is in communication with the outside.

4. The electrically powered pruning shears of claim 2, wherein, The inner wall of the housing (1) is provided with a reinforcing rib (13) which is provided with a through hole, and the through hole and the outer side wall of the driving member (4) form the first flow channel (11).

5. The electrically powered pruning shears of claim 1, wherein, The housing (1) is provided with a second flow channel (14) through which liquid can pass on the side of the sealing member (7) which is away from the driving member (4), and the housing (1) is provided with a second liquid discharge hole (15) which is in communication with the second flow channel (14); and / or, The electric pruning shears further comprise a pressure regulating member (9) which can be operated to apply positive pressure and / or negative pressure to the second flow channel (14).

6. The electrically powered pruning shears of claim 5, wherein, The electric pruning shears further comprise a trigger (10) which can control the operation of the shearing assembly (2), and the housing (1) is provided with an auxiliary opening (16) which is in communication with the second flow channel (14); the trigger (10) comprises a first position which can be operated to pivot close to the housing (1). When the trigger (10) is in the first position, the trigger (10) abuts the pressure regulating member (9) in the auxiliary opening (16), and positive pressure is generated in the second flow channel (14).

7. The electrically powered pruning shears of claim 6, wherein, The pressure regulating member (9) is arranged on the trigger (10).

8. The electrically powered pruning shear of claim 5, wherein, The electric pruning shears further comprise a trigger (10) which can control the operation of the shearing assembly (2), and the trigger (10) comprises a first position which can be operated to pivot close to the housing (1) and a second position which can be operated to pivot away from the housing (1), and the pressure regulating member (9) is arranged on the trigger (10). When the trigger (10) is pivoted from the first position to the second position, the trigger (10) can remove the pressure regulating member (9) from the second liquid discharge hole (15), and negative pressure is generated in the second flow channel (14).

9. The electrically powered pruning shears according to claim 6 or 8, characterized in that The second liquid discharge hole (15) is located on the side of the sealing member (7) which is away from the driving member (4) and close to the trigger (10).

10. The electrically powered pruning shears of claim 8, wherein, The electric pruning shears further comprise a reset member which is arranged in cooperation with the trigger (10), and when the trigger (10) is triggered, the reset member is deformed and has a tendency to guide the trigger (10) to pivot from the first position to the second position.

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