High-branch scissors transmission mechanism and high-branch scissors

Abstract

The utility model discloses a high branch shears transmission mechanism and high branch shears, which comprise a cutter body and a swing cutter shaft, a connecting piece and a 7-shaped swing cutter gear are sequentially connected on the swing cutter shaft in series, a blocking piece is arranged between the connecting piece and the 7-shaped swing cutter gear, one end face of the swing cutter shaft is fixedly connected with the cutter body through a pull rod piece, and the other end face of the swing cutter shaft is fixedly connected with the cutter body through the pull rod piece. And the other end face of the cutter swinging shaft is provided with a fixing piece which is locked with the cutter body. Comprising a lengthened pipe, a fixed shear head and a movable shear head are arranged at the front end of the lengthened pipe, a transmission line connected with the movable shear head is arranged in the lengthened pipe, a machine base is arranged at the tail end of the lengthened pipe, and the machine base and the transmission line are both fixed to the high branch shear transmission mechanism. The utility model is beneficial to breaking through the existing single structure mode, and is more beneficial to meeting the requirement on the basis of keeping normal operation.

Description

Technical Field

[0001] This utility model relates to the field of garden pruning tools, and in particular to a transmission mechanism for high branch shears and high branch shears. Background Technology

[0002] Existing electric pruning shears consist of a fixed blade and a movable blade capable of cutting and separating from each other, and a handle with a motor. The fixed blade is fixed to the handle, and the movable blade is connected to a second transmission component of the motor located inside the handle. In use, a switch is pressed to drive the motor, which in turn drives the movable blade to rotate via the second transmission component, thus controlling the shearing and separation of the movable and fixed blades. To facilitate the pruning of high branches, Chinese utility model patent CN213991769U discloses a connecting mechanism and an electric pruning shear with this mechanism. In this patent, the motor inside the handle has a transmission gear, with an arc-shaped tooth surface connected to the transmission gear. This gear-based transmission is relatively simple and cannot meet manufacturing requirements. Therefore, improvements are necessary. Utility Model Content

[0003] (a) Technical problems that need to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a high-branch pruning shear transmission mechanism and high-branch pruning shears, which breaks through the single structural mode of existing technologies and is more conducive to meeting the requirements of production and manufacturing.

[0005] (ii) Technical solutions to be adopted

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A high-branch pruning shearing transmission mechanism includes a blade body and a swing blade shaft disposed on the front end of the blade body. A connector and a figure-7 shaped swing blade gear are connected in series on the swing blade shaft. A blocking member is disposed between the connector and the figure-7 shaped swing blade gear to prevent the figure-7 shaped swing blade gear from being crushed. One end face of the swing blade shaft is fixedly connected to the blade body by a tie rod, while the other end face of the swing blade shaft is provided with a fixing member that locks it to the blade body. A handle for opening is provided on the blade body.

[0008] Preferably, the blocking component is a metal ring; or, the blocking component is integrally formed with one end face of the connecting component; or, the blocking component is integrally formed with one end face of the 7-shaped sway gear.

[0009] Preferably, when the blocking member and one end face of the connecting member or one end face of the 7-shaped sway gear are integral, the blocking member is protruding on one end face of the connecting member or one end face of the 7-shaped sway gear.

[0010] Preferably, the thickness of the blocking element is 2 mm to 8 mm.

[0011] Preferably, the connector includes a connecting block with one end sleeved on the oscillating blade shaft, and at least one locking element is installed on the connecting block.

[0012] Preferably, the pull rod includes a pull rod body fixed to one end of the swing blade shaft and the other end of the pull rod body fixed to the blade body by a stabilizing member.

[0013] Preferably, the fixing member includes a fixing plate disposed on the front end of the blade body, one end of the fixing plate being fixed to the blade body at the same position as the swing blade shaft by a stabilizing member, and the other end of the fixing plate being fixedly locked to the blade body by a locking member.

[0014] Preferably, the handle includes a trigger movably disposed on one side of the blade body, the trigger is provided with a stabilizing plate, the stabilizing plate is fixed to the blade body located below one side of the 7-shaped swaying gear, the blade body is provided with a blade housing, and a motor is disposed inside the rear part of the blade housing, the motor being connected to the trigger.

[0015] In addition, this utility model also provides a high-branch pruner, including an extended tube. The front end of the extended tube is provided with a fixed pruning head and a movable pruning head. The extended tube is provided with a transmission line connected to the movable pruning head. The rear end of the extended tube is provided with a base. The base is fixed on the connecting part of the high-branch pruner transmission mechanism as described above, and the other end of the transmission line is fixed on the 7-shaped swing blade gear of the high-branch pruner transmission mechanism as described above.

[0016] (III) The technical effects to be achieved

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] Firstly, this utility model includes a blade body and a swaying shaft disposed on the front end of the blade body. A connector and a figure-7 shaped swaying gear are connected in series on the swaying shaft. A blocking component is disposed between the connector and the figure-7 shaped swaying gear to prevent the figure-7 shaped swaying gear from being crushed. One end face of the swaying shaft is fixedly connected to the blade body by a tie rod, while the other end face of the swaying shaft is fixed to the blade body by a fixing component. A handle for opening is disposed on the blade body. This not only changes the transmission between two gears in the existing technology, reducing the problem of reduced service life due to wear between the two, but also helps to break through the existing single structure, which is more conducive to meeting the requirements of production and manufacturing, and the operation is more stable, which is more conducive to meeting the needs of use.

[0019] Secondly, this utility model includes an extended tube, with a fixed shear head and a movable shear head at the front end. A transmission line connected to the movable shear head is provided inside the extended tube, and a base is provided at the rear end of the extended tube. The base is fixed to the connecting part of the high-branch shear transmission mechanism as described above, and the other end of the transmission line is fixed to the 7-shaped swing blade gear of the high-branch shear transmission mechanism as described above through a connecting seat. This application in high-branch shears is more conducive to the convenient cutting of high branches, meeting the user's needs, while maintaining the simplicity and convenience of user operation, facilitating large-scale promotion and application. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a transmission mechanism for high-branch shears according to the present invention.

[0021] Figure 2 This is a schematic diagram of the overall transmission mechanism of a high-branch pruning shear according to the present invention.

[0022] Figure 3 This is a schematic diagram of the assembly of the swing blade shaft, connecting parts, 7-shaped swing blade gear, blocking parts and tie rod parts in the transmission mechanism of a high branch pruning shear according to this utility model.

[0023] Figure 4 This is a schematic diagram of a single blocking component in the transmission mechanism of a high-branch pruning shearing according to this utility model.

[0024] Figure 5 This is a schematic diagram of an embodiment of the blocking component and connecting component in a high-branch pruning transmission mechanism of this utility model.

[0025] Figure 6 This is a schematic diagram of an embodiment of the blocking component and the 7-shaped swing blade gear in the transmission mechanism of a high branch shearing according to this utility model.

[0026] Figure 7 This is a schematic diagram of an overall embodiment of a high-branch shearing transmission mechanism according to the present invention.

[0027] Figure 8 This is a schematic diagram of a high-branch pruning structure according to the present invention.

[0028] In the diagram: 1, blade body; 2, oscillating blade shaft; 3, connecting piece; 4, 7-shaped oscillating blade gear; 5, blocking piece; 6, pull rod piece; 7, fixing piece; 8, handle; 9, blade housing; 31, connecting block; 32, locking piece; 61, pull rod body; 62, stabilizing piece; 71, fixing plate; 72, stabilizing piece; 73, locking piece; 81, trigger; 82, stabilizing plate; 91, motor.

[0029] 10, Extension tube; 20, Fixed shear head; 30, Movable shear head; 40, Base; 50, Connecting seat. Detailed Implementation

[0030] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0031] In the description of this utility model, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0034] Example 1: See Figure 1 , Figure 2 and Figure 3A high-branch pruning shearing transmission mechanism includes a blade body 1 and a swing blade shaft 2 disposed on the front end of the blade body 1. A connecting piece 3 and a figure-7 shaped swing blade gear 4 are connected in series on the swing blade shaft 2. Since there is a gap between the connecting piece 3 and the figure-7 shaped swing blade gear 4, a blocking piece 5 is provided between the connecting piece 3 and the figure-7 shaped swing blade gear 4 to prevent the figure-7 shaped swing blade gear 4 from being crushed. One end face of the swing blade shaft 2 is fixedly connected to the blade body 1 by a tie rod 6, while the other end face of the swing blade shaft 2 is provided with a fixing piece 7 that locks it to the blade body 1. A handle 8 for opening is provided on the blade body 1. This structure is beneficial to breaking through the existing single structure and is more conducive to meeting the requirements of production and manufacturing.

[0035] Example 2: This can be explained based on Example 1, such as... Figure 4 As shown, the blocking component 5 is made of a metal ring (preferably made of iron), which reduces the manufacturing requirements of the connecting component 3 and the 7-shaped sway gear 4, and also facilitates installation; as Figure 5 As shown, or, the blocking member 5 and the connecting member 3 are integrally formed on one end face; as Figure 6 As shown, or, the blocking component 5 and the 7-shaped sway gear 4 are integrally set on one end face, showing a variety of forms and a wide range of choices, such as... Figure 4 and Figure 5 As shown, when the blocking member 5 and one end face of the connecting member 3 or one end face of the 7-shaped swaying gear 4 are integral, the blocking member 5 is protruding on one end face of the connecting member 3 or one end face of the 7-shaped swaying gear 4, which facilitates implementation. In this embodiment, the thickness of the blocking member 5 is 2 mm to 8 mm, which also helps to solve the gap problem between the connecting member 3 and the 7-shaped swaying gear 4. Preferably, the thickness of the blocking member 5 is 4 mm. In this utility model, the connecting member 3 and the 7-shaped swaying gear 4 are made of metal material, preferably metal material.

[0036] Example 3: This can be described based on Example 1 or Example 2, such as... Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, the connector 3 includes a connector block 31 with one end sleeved on the swashplate shaft 2. At least one locking element 32 is installed on the connector block 31. The locking element 32 is a bolt or screw. In this embodiment, three locking elements 32 are used, which is beneficial for connecting and fixing with external equipment and is convenient for manual installation and disassembly.

[0037] Example 4: This can be described based on Example 1, Example 2, or Example 3, such as... Figure 1 , Figure 2 , Figure 3 and Figure 7As shown, the tie rod 6 includes a tie rod body 61 fixed to one end of the swing cutter shaft 2 and the other end of the tie rod body 61 fixed to the cutter body 1 by a stabilizer 62. This setting is relatively simple and easy to implement. To further explain, the stabilizer 62 is a screw, which is widely available.

[0038] Example 5: This can be described based on Example 1, Example 2, Example 3, or Example 4, such as... Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, the fixing member 7 includes a fixing plate 71 set on the front end of the blade body 1. One end of the fixing plate 71 is fixed to the blade body 1 at the same position as the swing blade shaft 2 by a stabilizing member 72, and the other end of the fixing plate 71 is fixed and locked to the blade body 1 by a locking member 73. This is beneficial to improve the structural rigidity. To further explain, both the stabilizing member 72 and the locking member 73 are screws, which are easy to implement.

[0039] Example 6: This can be described based on Example 1, Example 2, Example 3, Example 4, or Example 5, such as... Figure 7 As shown, the handle 8 includes a trigger 81 movably mounted on one side of the blade body 1. A stabilizing plate 82 is mounted on the trigger 81 and fixed to the blade body 1 below one side of the 7-shaped swaying gear 4. This arrangement facilitates easier pressing of the trigger 81. Further, a blade housing 9 is mounted on the blade body 1, covering the blade body 1 and the swaying shaft 2, providing better protection for the components on the blade body 1. A motor 91 is located inside the rear of the blade housing 9, connected to the trigger 81. A transmission gear (similar to the one disclosed in patent application CN213991769U, where the transmission gear of the motor drives the arc-shaped tooth surface at the rear end of the second transmission member to rotate the front end of the second transmission member upwards) is also mounted on the blade body 1 and activated by the motor 91. The trigger 81 facilitates the switching of the motor 91, as the 7-shaped swaying gear 4 also has arc-shaped teeth that mesh with the transmission gear.

[0040] Example 7: This can be described based on Example 1, Example 2, Example 3, Example 4, Example 5, or Example 6, such as... Figure 8 As shown, this utility model also provides a high-branch pruning shear, including an extended tube 10. The front end of the extended tube 10 is equipped with a fixed shear head 20 and a movable shear head 30. A transmission line (not shown in the figure) connected to the movable shear head 30 is located inside the extended tube 10. A base 40 is located at the rear end of the extended tube 10, and the base 40 is fixed to the connecting member 3 of the high-branch pruning shear transmission mechanism. The other end of the transmission line is fixed to the 7-shaped swing blade gear 4 of the high-branch pruning shear transmission mechanism via a connecting seat 50. The structure is relatively simple and easy to implement. Furthermore,

[0041] When using the electric pruning shears of this invention, pressing the trigger 81 of the handle 8 starts the motor 91. The motor 91 drives the 7-shaped swing blade gear 4 through the transmission gear. The 7-shaped swing blade gear 4 swings back and forth around the swing blade shaft 2. When the 7-shaped swing blade gear 4 causes the connecting seat 50 to push the transmission line forward, it drives the movable shear head 30 to rotate until it is separated from the fixed arrow 20. When the trigger 81 is released, the motor 91 is turned off. At this time, the transmission line will automatically reset and cause the movable arrow 30 to rotate to a cutting state with the fixed arrow 20. In this way, the shearing and separation of the fixed arrow and the movable blade 52 can be operated, thereby enabling the pruning of branches at high places.

[0042] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts and rivets that are mature in the existing technology. The internal components of the electric motor adopt conventional models in the existing technology, and their internal structure belongs to the existing technology structure. Workers can complete the normal operation of them according to the existing technical manual. In addition, the circuit connection adopts conventional connection methods in the existing technology, and will not be described in detail here.

[0043] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.

Claims

1. A high-lift pruner drive mechanism characterized by: The utility model provides a high branch pruning shear drive mechanism, including the cutter body (1) and the setting is provided with the swing blade axle (2) on the cutter body (1) front end, swing blade axle (2) is connected in proper order with connecting piece (3) and 7 type swing blade gear (4) between connecting piece (3) and 7 type swing blade gear (4) is provided with the blocking piece (5) for preventing 7 type swing blade gear (4) dead, swing blade axle (2) one end surface with the cutter body (1) is fixedly connected through pull rod piece (6), and the blocking piece (5) is provided with and is locked between the cutter body (1) through fixing piece (7) on swing blade axle (2) other end surface, the cutter body (1) is provided with the handle (8) for opening.

2. The high-lift pruner drive mechanism of claim 1 wherein: The blocking piece (5) is a metal ring; or, the blocking piece (5) is integrally provided with one side end face of the connecting piece (3); or, the blocking piece (5) is integrally provided with one side end face of the 7 type swing blade gear (4).

3. The high-lift pruner drive mechanism of claim 2 wherein: When the blocking piece (5) is integrally provided with one side end face of the connecting piece (3) or one side end face of the 7 type swing blade gear (4), the blocking piece (5) is convex on the one side end face of the connecting piece (3) or the one side end face of the 7 type swing blade gear (4).

4. Pole lopper drive mechanism according to claim 2 or 3, characterized in that The thickness of the blocking piece (5) is 2-8 mm.

5. The high-lift pruner drive mechanism of claim 1 or 2 or 3, wherein: The connecting piece (3) includes a connecting block (31) sleeved on the swing blade axle (2), and at least one locking piece (32) is installed on the connecting block (31).

6. The high-lift pruner drive mechanism of claim 1 or 2 or 3, wherein: The pull rod piece (6) includes a pull rod body (61) fixed on one end of the swing blade axle (2) and a stabilizing piece (62) fixed on the other end of the pull rod body (61) on the cutter body (1).

7. The high-lift pruner drive mechanism of claim 1 or 2 or 3, wherein: The fixing piece (7) includes a fixing plate (71) arranged on the front end of the cutter body (1), one end of the fixing plate (71) is fixed on the cutter body (1) at the same position of the swing blade axle (2) through a stabilizing piece (72), and the other end of the fixing plate (71) is fixed and locked on the cutter body (1) through a locking piece (73).

8. The high-lift pruner drive mechanism of claim 1 or 2 or 3, wherein: The handle (8) includes a trigger (81) movably arranged on one side of the cutter body (1), a stabilizing plate (82) is arranged on the trigger (81), the stabilizing plate (82) is fixed on the cutter body (1) below one side of the 7 type swing blade gear (4), a cutter shell (9) is arranged on the cutter body (1), a motor (91) is arranged in the rear part of the cutter shell (9), and the motor (91) is connected with the trigger (81).

9. A long-reach lopper, comprising an elongated tube (10) provided with a fixed lopper head (20) and a movable lopper head (30) at the front end, and a transmission wire provided in the elongated tube (10) and connected with the movable lopper head (30), characterized in that: A machine base (40) is arranged at the tail end of the lengthened pipe (10), the machine base (40) is fixed on the connecting piece (3) of the high branch pruning shear drive mechanism according to any one of claims 1-8, and the other end of the transmission line is fixed on the 7 type swing blade gear (4) of the high branch pruning shear drive mechanism according to any one of claims 1-8 through a connecting base (50).

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