Hedge trimmer with adjustable end angle

Abstract

The application discloses a hedge trimmer with adjustable end angle, which comprises a device body and a blade assembly driven by the device body, a front end handle is arranged at the front end of the device body, a rear end handle which can be longitudinally and angularly adjusted relative to the blade assembly is movably arranged at the rear end of the device body, and the rear end handle is connected with the device body through an adjusting assembly. The rear end handle is movably arranged, the longitudinal angle of the rear end handle relative to the blade assembly can be flexibly adjusted according to the specific use requirement of trimming the shape of the hedge, the holding included angle between the front end handle and the rear end handle of the hedge trimmer can be conveniently changed, and the use of the operator is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of hedge trimmers, in particular to a hedge trimmer with adjustable end angles. Background Art

[0002] Hedge trimmers, also known as hedge shears, are suitable for professional pruning in landscaping such as tea pruning, parks, gardens, and roadside hedges. They are usually used manually by hand. At present, the hedge trimmers that are widely circulated on the market mostly have a fixed angle of 180° between the rear handle and the cutting blade, and the pruning angle cannot be changed. When pruning some inclined or spherical hedges, the operator often needs to hold the hedge trimmer in an extremely uncomfortable posture to perform the pruning operation, which increases the difficulty of operation and physical exertion of the operator. Summary of the Invention

[0003] In response to the above problems, the present invention provides a hedge trimmer with adjustable end angles. Based on the traditional hedge trimmer, a movable and adjustable rear end handle is designed to facilitate the change of the gripping angle between the front and rear end handles of the hedge trimmer. It can be adjusted according to the needs of pruning work, making it more convenient for operators to use.

[0004] The technical solutions of the present invention are as follows:

[0005] A hedge trimmer with adjustable end angle comprises an equipment body and a blade assembly driven by the equipment body. The front end of the equipment body is provided with a front handle, and the rear end of the equipment body is movably provided with a rear handle that can be adjusted longitudinally relative to the blade assembly. The rear handle is connected to the equipment body through an adjustment assembly.

[0006] The working principle of the above technical solution is as follows:

[0007] The rear end handle of the present invention is movably arranged, and the longitudinal angle of the rear end handle relative to the blade assembly can be flexibly adjusted according to the specific use requirements of the hedge trimmer shape, which facilitates the change of the holding angle between the front and rear end handles of the hedge trimmer and is more convenient for operators to use.

[0008] In a further technical solution, the adjustment component includes:

[0009] An adjustment shaft is provided in the device body and is used to connect to the rear end handle. A groove for longitudinal adjustment of the rear end handle is provided on the rear end surface of the device body;

[0010] There are two shaft sleeves, which are respectively sleeved on both ends of the adjusting shaft and rotatably connected to the adjusting shaft, and the outer annular surface of the shaft sleeve is fixed to the device body;

[0011] An adjustment rod is inserted into one end of the adjustment shaft. The cross-section of the adjustment rod is not a circular surface, but preferably a regular polygonal structure. The adjustment rod is designed to have a certain friction between the adjustment rod and the adjustment shaft so that the adjustment rod will not easily move relative to the adjustment shaft when the operator holds the hedge trimmer.

[0012] The positioning sleeve is cylindrical, and the bottom surface of the positioning sleeve is fixedly sleeved on the adjusting rod. The inner side wall of the positioning sleeve is slidably matched with the end of the adjusting shaft. A number of positioning rods are evenly distributed along the circumference of the port of the positioning sleeve. The positioning rods extend along the axial direction of the positioning sleeve, and a number of positioning grooves that can cooperate with the ends of the positioning rods are evenly distributed on the end surface of the sleeve along the circumference. The number of the positioning grooves is N times the number of the positioning rods, and N is a positive integer. The number of positioning grooves and positioning rods can be determined according to the angle change that needs to be adjusted.

[0013] By pulling the adjusting rod to pull the positioning rod on the positioning sleeve outward and disengaging it from the positioning groove, the longitudinal angle of the rear end handle relative to the blade assembly can be freely adjusted. After adjustment, the adjusting rod is reset and the positioning rod is engaged with the positioning groove to complete the angle limitation of the rear end handle.

[0014] The present invention has two modes of use. First, after the angle of the rear handle is adjusted to the desired position, the positioning rod and the positioning slot cooperate to limit the angle of the rear handle, so that the rear handle and the blade assembly can be operated at a fixed angle, which is suitable for pruning a wide range of sloped hedges. Second, the positioning rod and the positioning slot can be kept disengaged at all times. At this time, the rear handle can be adjusted in angle at any time and is in an active state, which is suitable for pruning spherical hedges or smaller, irregularly shaped hedges.

[0015] The design of the above two usage modes can greatly facilitate the operator's hedge trimming work and improve the trimming efficiency.

[0016] In a further technical solution, a limiting block is provided on the inner wall of the positioning sleeve, and a limiting groove cooperating with the limiting block is provided at the end of the adjusting shaft along its axial direction.

[0017] In a further technical solution, an annular baffle is provided on the inner side of the positioning sleeve, the outer diameter of the baffle is adapted to the inner diameter of the positioning sleeve, and the baffle is connected to the adjusting shaft by a bolt. The baffle can block the end of the limit slot to prevent the limit block from sliding out of the limit slot, thereby preventing the positioning sleeve from slipping off the adjusting shaft. A mounting hole for exposing the bolt hole on the baffle is provided on the bottom surface of the positioning sleeve, which facilitates the operation of bolting the baffle.

[0018] In a further technical solution, the front end face of the positioning rod is a bevel, and the positioning groove is a wedge-shaped groove that cooperates with the end of the positioning rod. Through the cooperation between the bevel and the triangular wedge-shaped groove, it is more convenient to insert the positioning rod into the positioning groove and complete the positioning cooperation with the positioning groove.

[0019] In a further technical solution, a reinforcing connecting piece is provided between the rear end handle and the device body, and the reinforcing connecting piece can be arranged in a groove on the rear end surface of the device body. An arc-shaped adjustment groove is provided on the reinforcing connecting piece, and the center of the circle where the adjustment groove is located is located on the adjustment shaft, and the circular surface where the adjustment groove is located is perpendicular to the axial direction of the adjustment shaft. Two connecting bolts are provided through the adjustment groove, and the two connecting bolts are respectively connected to the device body and the rear end handle, and the two connecting bolts are respectively provided with fastening nuts.

[0020] When adjusting the longitudinal angle of the rear end handle, first loosen the fastening nut on one of the connecting bolts (in order to avoid the reinforcement connecting piece affecting the grip of the rear end handle, it is preferred to loosen the fastening nut on the device body, so that the reinforcement connecting piece moves towards the side of the device body during adjustment). After the longitudinal angle of the rear end handle is adjusted to the right position, tighten the fastening nut. The reinforcement connecting piece can improve the stability of the connection between the rear end handle and the device body, and at the same time assist in locking the adjusted angle.

[0021] In a further technical solution, a baffle is provided at the front end of the device body in front of the front handle to prevent splashes during the trimming process from falling on the operator's hands.

[0022] The beneficial effects of the present invention are:

[0023] 1. The rear handle of the present invention is movable and has two modes of use. It can meet the needs of pruning a wide range of sloped hedges, as well as spherical hedges or smaller, special-shaped hedges. It can greatly facilitate the operator's hedge pruning work and improve pruning efficiency.

[0024] 2. By setting a blocking piece to block the end of the limit groove, the limit block is prevented from sliding out of the limit groove, thereby preventing the positioning sleeve from slipping off the adjustment shaft and limiting the positioning sleeve to the end of the adjustment shaft;

[0025] 3. The cooperation between the positioning rod with an inclined end and the triangular wedge-shaped groove makes it easier to insert the positioning rod into the positioning groove and complete the positioning cooperation with the positioning groove;

[0026] 4. The reinforcement connecting piece can improve the connection stability between the rear handle and the device body, and assist in locking the adjusted angle;

[0027] 5. A baffle is set at the front end of the equipment body to prevent splashes from falling on the operator's hands during the trimming process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a top view of a hedge trimmer with adjustable end angle according to an embodiment of the present invention;

[0029] Figure 2 is a side view of a hedge trimmer with adjustable end angle according to an embodiment of the present invention;

[0030] Figure 3 is a side view of a hedge trimmer with adjustable end angle according to another embodiment of the present invention;

[0031] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0032] Figure 5 is a schematic structural diagram of the adjustment component according to an embodiment of the present invention;

[0033] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0034] Figure 7 1 is a schematic structural diagram of the positioning sleeve according to an embodiment of the present invention;

[0035] Figure 8 It is a schematic diagram of the end surface structure of the positioning sleeve described in an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 10. Blade assembly; 20. Equipment body; 30. Front handle; 40. Rear handle; 50. Baffle; 60. Reinforcement connecting piece; 61. Adjustment slot; 62. Fastening nut; 71. Adjustment shaft; 711. Limiting slot; 72. Bushing; 73. Adjustment rod; 74. Positioning sleeve; 741. Limiting block; 742. Mounting hole; 75. Positioning rod; 76. Baffle; 77. Positioning slot. DETAILED DESCRIPTION

[0038] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0039] Example:

[0040] A hedge trimmer with adjustable end angle, such as Figure 1-Figure 2 As shown, it includes a device body 20 and a blade assembly 10 driven by the device body 20. The front end of the device body 20 is provided with a front handle 30, and the rear end of the device body 20 is movably provided with a rear handle 40 that can be adjusted longitudinally relative to the blade assembly 10. The rear handle 40 is connected to the device body 20 through an adjustment assembly.

[0041] The present invention makes the rear handle 40 movable, and can flexibly adjust the longitudinal angle of the rear handle 40 relative to the blade assembly 10 according to the specific use requirements of the hedge trimmer shape, so as to facilitate the change of the holding angle between the front and rear handles 40 of the hedge trimmer, making it more convenient for the operator to use.

[0042] In this embodiment, if Figure 5-Figure 8 As shown, the adjustment components include:

[0043] The adjusting shaft 71 is provided in the device body 20 and is used to connect to the rear handle 40. The rear surface of the device body 20 is provided with a groove for longitudinal adjustment of the rear handle 40;

[0044] There are two shaft sleeves 72, which are respectively sleeved on both ends of the adjustment shaft 71 and rotatably connected to the adjustment shaft 71. The outer annular surface of the shaft sleeve 72 is fixed to the device body 20;

[0045] The adjusting rod 73 is inserted into one end of the adjusting shaft 71. The cross section of the adjusting rod 73 is not a circular surface, but preferably a regular polygonal structure. The adjusting rod 73 is designed to have a certain friction between the adjusting rod 73 and the adjusting shaft 71 so that the adjusting rod 73 will not easily move relative to the adjusting shaft 71 when the operator holds the hedge trimmer.

[0046] The positioning sleeve 74 is cylindrical, and the bottom surface of the positioning sleeve 74 is fixedly sleeved on the adjusting rod 73. The inner side wall of the positioning sleeve 74 slides with the end of the adjusting shaft 71. A number of positioning rods 75 are evenly distributed along the circumference of the port of the positioning sleeve 74. The positioning rods 75 extend along the axial direction of the positioning sleeve 74. A number of positioning grooves 77 that can cooperate with the ends of the positioning rods 75 are evenly distributed on the end surface of the shaft sleeve 72 along the circumference. The number of positioning grooves 77 is N times the number of positioning rods 75, where N is a positive integer. The number of positioning grooves 77 and positioning rods 75 can be determined according to the angle change that needs to be adjusted.

[0047] By pulling the adjusting rod 73 to pull the positioning rod 75 on the positioning sleeve 74 outward and disengage it from the positioning groove 77, the longitudinal angle of the rear end handle 40 relative to the blade assembly 10 can be freely adjusted. After adjustment, the adjusting rod 73 is reset, and the positioning rod 75 cooperates with the positioning groove 77 to complete the angle limitation of the rear end handle 40.

[0048] In this embodiment, there are two usage modes. First, after the angle of the rear handle 40 is adjusted to the correct position, the angle of the rear handle 40 is limited by the cooperation of the positioning rod 75 and the positioning slot 77, so that the rear handle 40 and the blade assembly 10 can be operated at a fixed angle, which is suitable for pruning a large range of sloped hedges. Second, the positioning rod 75 and the positioning slot 77 can be kept disengaged at all times. At this time, the rear handle 40 can be changed in angle at any time and is in an active state, which is suitable for pruning spherical hedges or smaller, irregularly shaped hedges.

[0049] The design of the above two usage modes can greatly facilitate the operator's hedge trimming work and improve the trimming efficiency.

[0050] In another embodiment, Figure 6 As shown, a limiting block 741 is provided on the inner wall of the positioning sleeve 74 , and a limiting groove 711 is provided along the axial direction of the end portion of the adjusting shaft 71 to cooperate with the limiting block 741 .

[0051] In addition, if Figure 6 As shown, an annular baffle 76 is provided on the inner side of the positioning sleeve 74, and the outer diameter of the baffle 76 is adapted to the inner diameter of the positioning sleeve 74. The baffle 76 is connected to the adjusting shaft 71 by bolts. The baffle 76 can block the end of the limiting groove 711 to prevent the limiting block 741 from sliding out of the limiting groove 711, thereby preventing the positioning sleeve 74 from slipping off the adjusting shaft 71. The bottom surface of the positioning sleeve 74 is provided with a mounting hole 742 for exposing the bolt hole on the baffle 76, which facilitates the operation of bolting the baffle 76.

[0052] like Figure 7 As shown, the front end face of the positioning rod 75 is a bevel, and the positioning groove 77 is a wedge-shaped groove that cooperates with the end of the positioning rod 75. Through the cooperation between the bevel and the triangular wedge-shaped groove, it is more convenient for the positioning rod 75 to be inserted into the positioning groove 77 and complete the positioning cooperation with the positioning groove 77.

[0053] In another embodiment, Figure 3-Figure 4 As shown, a reinforcing connecting piece 60 is provided between the rear end handle 40 and the device body 20. The reinforcing connecting piece 60 can be arranged in the groove on the rear end surface of the device body 20. An arc-shaped adjustment groove 61 is provided on the reinforcing connecting piece 60. The center of the circle where the adjustment groove 61 is located is located on the adjustment shaft 71, and the circular surface where the adjustment groove 61 is located is perpendicular to the axial direction of the adjustment shaft 71. Two connecting bolts are provided through the adjustment groove 61, and the two connecting bolts are respectively connected to the device body 20 and the rear end handle 40, and the two connecting bolts are respectively provided with fastening nuts 62.

[0054] When adjusting the longitudinal angle of the rear end handle 40, first loosen the fastening nut 62 on one of the connecting bolts (in order to avoid the reinforcing connecting piece 60 affecting the grip of the rear end handle 40, it is preferred to loosen the fastening nut 62 on the device body 20, so that the reinforcing connecting piece 60 moves toward the side of the device body 20 during adjustment). After the longitudinal angle of the rear end handle 40 is adjusted to the right position, tighten the fastening nut 62. The reinforcing connecting piece 60 can improve the stability of the connection between the rear end handle 40 and the device body 20, and at the same time assist in locking the adjusted angle.

[0055] In another embodiment, Figure 2 As shown, a baffle 50 is provided at the front end of the device body 20 in front of the front handle 30 to prevent splashes during the trimming process from falling on the operator's hands.

[0056] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A hedge trimmer with adjustable end angle, comprising a device body and a blade assembly driven by the device body, characterized in that: The front end of the device body is provided with a front handle, and the rear end of the device body is movably provided with a rear handle that can be adjusted longitudinally relative to the blade assembly. The rear handle is connected to the device body through an adjustment assembly. A reinforcement connecting piece is provided between the rear handle and the device body. An arc-shaped adjustment slot is provided on the reinforcement connecting piece. The center of the adjustment slot is located on the adjustment shaft. Two connecting bolts are provided through the adjustment slot. The two connecting bolts are respectively connected to the device body and the rear handle. The two connecting bolts are respectively provided with fastening nuts. The adjustment component includes: An adjustment shaft is provided in the device body and is used to connect to the rear end handle. A groove for longitudinal adjustment of the rear end handle is provided on the rear end surface of the device body; There are two shaft sleeves, which are respectively sleeved on both ends of the adjusting shaft and rotatably connected to the adjusting shaft, and the outer annular surface of the shaft sleeve is fixed to the device body; An adjusting rod is inserted into one end of the adjusting shaft, and the cross section of the adjusting rod is a non-circular surface; The positioning sleeve is cylindrical, and the bottom surface of the positioning sleeve is fixedly sleeved on the adjusting rod. The inner side wall of the positioning sleeve is slidably matched with the end of the adjusting shaft. A number of positioning rods are evenly distributed along the circumference of the port of the positioning sleeve. The positioning rods extend along the axial direction of the positioning sleeve, and a number of positioning grooves that can cooperate with the ends of the positioning rods are evenly distributed along the circumference of the end surface of the shaft sleeve; a limit block is provided on the inner wall of the positioning sleeve, and the end of the adjusting shaft is provided with a limit groove along its axial direction that cooperates with the limit block.

2. The hedge trimmer with adjustable end angle according to claim 1, characterized in that: An annular baffle is provided on the inner side of the positioning sleeve, the outer diameter of the baffle is adapted to the inner diameter of the positioning sleeve, the baffle is connected to the adjustment shaft through bolts, and a mounting hole for exposing the bolt hole on the baffle is provided on the bottom surface of the positioning sleeve.

3. The hedge trimmer with adjustable end angle according to claim 1, characterized in that: The front end surface of the positioning rod is an inclined surface, and the positioning groove is a wedge-shaped groove matched with the end of the positioning rod.

4. The hedge trimmer with adjustable end angle according to claim 1, characterized in that: The front end of the device body is provided with a baffle on the front side of the front handle.

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