Hedge trimmer cutting device

Abstract

The utility model relates to a hedge trimmer cutting device. The hedge trimmer cutting device comprises a driving box body and a blade assembly installed on the driving box body. The blade assembly comprises a fixed bottom plate, a movable blade arranged on the top of the fixed bottom plate in a sliding mode and a top frame fixedly matched with the fixed bottom plate. The device is characterized by further comprising a baffle assembly detachably installed on the top frame. The top frame is provided with a mounting groove arranged along the length direction; clamping convex blocks are arranged on two side walls of the mounting groove; the baffle assembly comprises a baffle main body and a mounting part arranged in the mounting groove; the side wall of the installation part is provided with a clamping groove used for arranging the clamping protruding block, and the clamping groove comprises a first clamping groove perpendicular to the bottom face of the installation groove and a second clamping groove connected to the top of the first clamping groove. The baffle assembly is detachably installed on the top frame, so that selective installation of the baffle assembly is achieved, and the installation mode of the baffle assembly is convenient.

Description

Technical Field

[0001] This application relates to the field of garden tool technology, and in particular to a hedge trimmer cutting device. Background Technology

[0002] A hedge trimmer is a machine specifically designed for trimming hedges and lawn edges. It is highly efficient, labor-saving, and flexible, making it widely used in landscaping maintenance, public greening, and tea harvesting. A hedge trimmer includes a handheld unit, a drive assembly mounted on the handheld unit, and a cutting device located at the front of the handheld unit. To push fallen leaves aside and collect them, a baffle is typically installed on the top of the cutting device. Regarding the aforementioned technologies, the inventors believe that different users have different needs for the baffle; some users always need the baffle when using the hedge trimmer, while others only need it in very specific situations. Therefore, a hedge trimmer cutting device with an optional baffle installation is needed. Utility Model Content

[0003] In order to enable the optional installation of baffles in hedge cutter devices and to make the installation method more convenient, this application provides a hedge cutter device.

[0004] The hedge cutting device provided in this application adopts the following technical solution:

[0005] A hedge trimmer includes a drive housing and a blade assembly mounted on the drive housing. The blade assembly includes a fixed base plate, a movable blade slidably arranged on the top of the fixed base plate, and a top frame fixedly engaged with the fixed base plate. The device further includes a baffle assembly detachably mounted on the top frame. The top frame has a mounting groove arranged along its length. The two side walls of the mounting groove are provided with snap-fit ​​protrusions. The baffle assembly includes a baffle body and a mounting portion arranged within the mounting groove. The side wall of the mounting portion has a snap-fit ​​groove for accommodating the snap-fit ​​protrusions, the snap-fit ​​groove including a first snap-fit ​​groove perpendicular to the bottom surface of the mounting groove and a second snap-fit ​​groove connected to the top of the first snap-fit ​​groove.

[0006] By adopting the above technical solution, when assembling the baffle assembly at the top of the hedge trimmer cutting device, the mounting part of the baffle assembly is first aligned with the mounting groove on the top frame, and the first slot on the side wall of the mounting part is aligned with the snap-fit ​​protrusion in the mounting groove. After inserting the baffle assembly into the snap-fit ​​protrusion along the arrangement direction of the first slot, the baffle assembly is then slid along the arrangement direction of the second slot, thus realizing the installation between the baffle assembly and the cutting device. Sliding the baffle assembly in the opposite direction allows for the disassembly between the baffle assembly and the cutting device. This helps to cater to different users' selective installation or disassembly of the baffle when using the hedge trimmer and in different usage scenarios, while also improving the problem of the excessive size of the hedge trimmer with the baffle during transportation.

[0007] Optionally, the number of snap-fit ​​grooves on both sides of the mounting part is not less than two, and the inner wall of the mounting groove is provided with snap-fit ​​protrusions that correspond one-to-one with the snap-fit ​​grooves.

[0008] By adopting the above technical solution, at least a number of snap-fit ​​grooves are arranged on both sides of the mounting part, and snap-fit ​​protrusions corresponding to the snap-fit ​​grooves are arranged in the mounting groove, which helps to improve the installation stability of the baffle.

[0009] Optionally, the snap-fit ​​grooves located on the two side walls of the mounting portion are arranged in a staggered manner.

[0010] By adopting the above technical solution, the arrangement of the snap-fit ​​slots is disclosed. Staggering the snap-fit ​​slots helps to further improve the installation stability of the baffle.

[0011] Optionally, the side wall of the mounting portion is provided with a snap-fit ​​structure for locking the baffle assembly. The snap-fit ​​structure includes a connecting portion arranged along the length direction of the mounting portion and a circular snap-fit ​​installed at the end of the connecting portion. The top frame has a locking groove on the side wall of the mounting groove that cooperates with the circular snap-fit.

[0012] By adopting the above technical solution, a buckle structure for locking the baffle assembly is provided on the side wall of the mounting part, and a locking slot that matches it is opened on the side wall of the mounting groove, so that the baffle assembly is not easy to fall off from the mounting groove when using the hedge trimmer.

[0013] Optionally, the second slot is located in front of the first slot, and the top frame is also provided with a transition slot located in front of the locking slot on the side wall of the mounting slot, the transition slot having a guide slope.

[0014] By adopting the above technical solution, when assembling the baffle assembly at the top of the hedge cutter, when the first slot on the side wall of the mounting part is inserted into the snap-fit ​​protrusion on the side wall of the mounting groove, the buckle of the mounting part will simultaneously abut against the transition slot on the side wall of the mounting groove; when the second slot on the mounting part is slidably locked to the snap-fit ​​protrusion on the side wall of the mounting groove, the buckle will also slide to the locking slot via the guide slope, which helps to improve the convenience of locking the baffle assembly and the top frame.

[0015] Optionally, the baffle body has a tail baffle on the side facing the drive box, and the bottom of the tail baffle abuts against the front end of the drive box.

[0016] By adopting the above technical solution and setting a tail baffle on the front side of the box, it helps to improve the efficiency of the hedge trimmer in collecting leaves during use.

[0017] Optionally, the tail baffle is symmetrically arranged on both sides of the baffle body.

[0018] By adopting the above technical solution, the tail baffle is symmetrically arranged on both sides of the baffle body, which further enables the collection of leaves falling from different directions during the use of the hedge trimmer.

[0019] Optionally, a weight-reducing groove is provided at the bottom of the mounting part along the length direction, and a reinforcing rib is provided in the weight-reducing groove perpendicular to the length direction of the mounting part and connected to the two side walls of the weight-reducing groove.

[0020] By adopting the above technical solution, a weight-reducing groove is set at the bottom of the mounting part of the baffle assembly and reinforcing ribs are arranged in the weight-reducing groove, which helps to improve the structural strength of the bottom of the baffle while saving materials.

[0021] Optionally, the surface of the fixed base plate is provided with a plurality of first through holes, and the top frame is provided with a plurality of second through holes at the bottom of the mounting groove that are directly opposite to the first through holes. The top frame and the fixed base plate are fixed together by bolts.

[0022] By adopting the above technical solution, a first through hole is opened on the surface of the fixed base plate, and a second through hole is opened on the surface of the top frame that is directly opposite to the first through hole. The two holes are then fixed with bolts, thereby achieving the clamping and installation of the movable blade by the top frame and the fixed base plate.

[0023] Optionally, the movable blade includes an upper blade and a lower blade arranged corresponding to the upper blade. The surface of the upper blade has a plurality of first oblong holes that cooperate with the first through hole along the length direction. The surface of the lower blade has a plurality of second oblong holes that cooperate with the first through hole and are arranged alternately with the first oblong holes along the length direction.

[0024] By adopting the above technical solution, oblong holes are alternately set on the surfaces of the upper and lower blades and connected to the through holes on the surfaces of the top frame and the fixed base plate, thus realizing the sliding of the movable blade between the top frame and the fixed base plate.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. A hedge trimmer cutting device, comprising a drive housing, a blade assembly, and a detachable baffle assembly. When assembling the baffle assembly at the top of the hedge trimmer cutting device, the baffle assembly is first inserted into the locking protrusion along the arrangement direction of the first slot, and then slid along the arrangement direction of the second slot, thereby realizing the installation between the baffle assembly and the cutting device. Sliding the baffle assembly in the opposite direction can realize the disassembly between the baffle assembly and the cutting device, which helps to realize the optional installation of the baffle assembly. At the same time, the installation method of the baffle assembly is relatively convenient, which helps to improve the problem of excessive size of hedge trimmers with baffles during transportation.

[0027] 2. By arranging buckles for locking the baffle assembly on the side wall of the mounting part, and opening a locking slot on the same side of the top frame to cooperate with the buckles, the buckles and the locking slot are locked together, which helps to improve the firmness of the connection between the baffle assembly and the top frame, thereby reducing the probability of the baffle assembly falling off the mounting slot when using the hedge trimmer.

[0028] 3. By arranging a tail baffle on the side of the baffle body facing the box, it helps to improve the efficiency of leaf collection during the use of the hedge trimmer. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the hedge cutter device in this embodiment.

[0030] Figure 2 This is a schematic diagram of the blade assembly in this embodiment.

[0031] Figure 3 This is a bottom schematic diagram of the baffle assembly in this embodiment.

[0032] Figure 4 This is a cross-sectional view of the drive housing along the length of the blade assembly in this embodiment.

[0033] Figure 5 This is a schematic diagram showing the cooperation between the fixed base plate, the top frame, and the movable blade in this embodiment.

[0034] Explanation of reference numerals in the attached drawings: 1. Drive housing; 11. Base; 111. First limiting shaft; 112. Second limiting shaft; 12. Top cover; 13. Transmission assembly; 131. First transmission element; 1311. Arrangement slot; 132. Second transmission element; 1321. Transmission block; 1322. First eccentric wheel; 1323. Second eccentric wheel; 1324. Connecting pin; 14. Mounting chamber; 15. Dustproof sponge; 2. Blade assembly; 21. Fixed base plate; 211. First limiting hole; 212. Second limiting hole; 213. Arrangement hole; 214. First through hole; 22. Top frame; 221. Mounting slot; 222. Snap-fit ​​protrusion; 223. Locking slot; 224. Transition slot; 225. Guide slope; 226. Second through hole; 23. Movable blade; 231. Upper blade; 2311. First transmission hole; 2312. First oblong hole; 232. Lower blade; 2321. Second transmission hole; 2322. Second oblong hole; 3. Baffle assembly; 31. Baffle body; 311. Tail baffle; 32. Mounting part; 321. Snap-fit ​​groove; 3211. First slot; 3212. Second slot; 322. Snap-fit ​​structure; 3221. Connecting part; 3222. Circular snap-fit; 3223. Mounting through hole; 323. Weight reduction groove; 324. Reinforcing rib. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0036] This application discloses a hedge trimming device. (Refer to...) Figure 1 and Figure 2 The hedge trimmer includes a drive housing 1, a blade assembly 2, and a baffle assembly 3. The blade assembly 2 includes a fixed base plate 21, a top frame 22 that cooperates with the fixed base plate 21, and a movable blade 23 slidably arranged between the fixed base plate 21 and the top frame 22. The movable blade 23 includes an upper blade 231 and a lower blade 232 corresponding to the upper blade 231. The top frame 22 has a mounting groove 221 arranged along its length, and the baffle assembly 3 is detachably installed within the mounting groove 221. Four engaging protrusions 222 are provided on the side walls of the top frame 22 into the mounting groove 221, with the engaging protrusions 222 arranged in pairs on both side walls in a staggered manner. In this embodiment, the staggered arrangement of the engaging protrusions 222 means that the engaging protrusions 222 located on opposite sides are all staggered.

[0037] Reference Figure 1 and Figure 3The baffle assembly 3 includes a baffle body 31 and a mounting portion 32 disposed within the mounting groove 221. A tail baffle 311 is obliquely arranged on the side of the baffle body 31 facing the drive housing 1. The two wings of the tail baffle 311 are symmetrically arranged on both sides of the baffle body 31, and the bottom of the tail baffle 311 abuts against the front end of the drive housing 1. Four locking grooves 321 are provided on the two side walls of the mounting portion 32 for engaging with the locking protrusions 222. Each locking groove 321 includes a first locking groove 3211 perpendicular to the bottom surface of the mounting groove 221 and a second locking groove 3212 connected to the top of the first locking groove 3211, with the second locking groove 3212 located in front of the first locking groove 3211.

[0038] Reference Figure 2 and Figure 3 One sidewall of the mounting portion 32 is provided with a snap-fit ​​structure 322. The snap-fit ​​structure 322 includes a connecting portion 3221 arranged along the length of the mounting portion 32 and a circular snap-fit ​​3222 installed at the end of the connecting portion 3221. One end of the connecting portion 3221 is connected to the sidewall of the mounting portion 32, and the other end has a mounting through hole 3223 for the circular snap-fit ​​3222 to be arranged in the direction facing the outside of the mounting groove 221. The mounting groove 221 has a slot structure on the same side that mates with the circular snap-fit ​​3222. The slot structure includes a transition slot 224 and a locking slot 223 along the installation direction of the baffle assembly 3. A guide slope 225 is provided between the transition slot 224 and the locking slot 223. A weight-reducing groove 323 is provided at the bottom of the mounting portion 32 along the length. Multiple reinforcing ribs 324 are evenly arranged in the weight-reducing groove 323 perpendicular to the length of the mounting part 32 for reinforcing the mounting part 32. The two ends of the reinforcing ribs 324 are connected to the two side walls of the weight-reducing groove 323.

[0039] Reference Figure 4 The drive housing 1 includes a base 11, a top cover 12, and a transmission assembly 13. A mounting chamber 14 is formed between the base 11 and the top cover 12, and a dustproof sponge 15 is arranged on the side of the mounting chamber 14 facing the baffle assembly 3. The transmission assembly 13 is located in the middle of the mounting chamber 14 and includes a first transmission element 131 connected to the output end of the drive motor and a second transmission element 132 coaxially arranged at the bottom of the first transmission element 131. The first transmission element 131 has a gear structure at one end connected to the output end of the drive motor and an arrangement slot 1311 for arranging the second transmission element 132 at the other end. The second transmission element 132 includes a transmission block 1321 fixed to the arrangement slot 1311, a first eccentric wheel 1322 coaxially arranged at the bottom of the transmission block 1321, and a second eccentric wheel 1323 coaxially arranged at the bottom of the first eccentric wheel 1322. The transmission block 1321, the first eccentric wheel 1322, and the second eccentric wheel 1323 are fixed together by two connecting pins 1324.

[0040] Reference Figure 4The base 11 has a first limiting shaft 111 on the side of the transmission assembly 13 facing away from the cutting assembly, and a second limiting shaft 112 on the side facing the cutting assembly. The surface of the fixed base plate 21 has a first limiting hole 211 that matches the first limiting shaft 111 and a second limiting hole 212 that matches the second limiting shaft 112. The surface of the fixed base plate 21 also has arrangement holes 213 for arranging the transmission assembly 13. The surface of the upper blade 231 has a first transmission hole 2311 that mates with the first eccentric wheel 1322, and the surface of the lower blade 232 has a second transmission hole 2321 that mates with the second eccentric wheel 1323 assembly.

[0041] Reference Figure 2 and Figure 5 The fixed base plate 21 has multiple first through holes 214 evenly arranged along its length. The bottom of the top frame 22 has multiple second through holes 226 directly opposite the first through holes 214. The surface of the upper blade 231 has multiple first oblong holes 2312 that mate with the first through holes 214, and the surface of the lower blade 232 has multiple second oblong holes 2322 that mate with the first through holes 214. The first oblong holes 2312 and second oblong holes 2322 are staggered. The top frame 22 and the fixed base plate 21 are fixed together with bolts, allowing the upper blade 231 and lower blade 232 to slide alternately while being held in place by the top frame 22 and the fixed base plate 21.

[0042] The implementation principle of the hedge cutter device in this application embodiment is as follows: When assembling the baffle assembly 3 at the top of the hedge cutter device, the baffle assembly 3 is first inserted into the snap-fit ​​protrusion 222 along the arrangement direction of the first slot 3211. At the same time, the buckle of the mounting part 32 will abut against the transition slot 224 on the side wall of the mounting slot 221. Then, the baffle assembly 3 is slid along the arrangement direction of the second slot 3212. The buckle will also slide along the guide slope 225 to the locking slot 223 at the rear end of the transition slot 224 and lock, thus realizing the installation between the baffle assembly 3 and the cutting device. Sliding the baffle assembly 3 in the opposite direction can realize the disassembly between the baffle assembly 3 and the cutting device, which helps the selection and installation of the baffle assembly and the installation method of the baffle assembly is relatively convenient.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hedge trimmer, comprising a drive housing (1) and a blade assembly (2) mounted on the drive housing (1); the blade assembly (2) comprises a fixed base plate (21), a movable blade (23) slidably arranged on the top of the fixed base plate (21), and a top frame (22) fixedly engaged with the fixed base plate (21); characterized in that, It also includes a baffle assembly (3) that can be detachably installed on the top frame (22); the top frame (22) has a mounting groove (221) arranged along the length direction; the two side walls of the mounting groove (221) are provided with snap-fit ​​protrusions (222); the baffle assembly (3) includes a baffle body (31) and a mounting part (32) arranged in the mounting groove (221); the side wall of the mounting part (32) is provided with a snap-fit ​​groove (321) for the snap-fit ​​protrusions (222) to be arranged, the snap-fit ​​groove (321) includes a first snap-fit ​​groove (3211) perpendicular to the bottom surface of the mounting groove (221) and a second snap-fit ​​groove (3212) connected to the top of the first snap-fit ​​groove (3211).

2. The hedge cutting device according to claim 1, characterized in that, The number of the snap-fit ​​grooves (321) on both sides of the mounting part (32) is not less than two, and the inner wall of the mounting groove (221) is provided with snap-fit ​​protrusions (222) that correspond one-to-one with the snap-fit ​​grooves (321).

3. The hedge cutting device according to claim 2, characterized in that, The snap-fit ​​grooves (321) located on both sides of the mounting part (32) are staggered.

4. The hedge cutting device according to claim 1, characterized in that, The side wall of the mounting part (32) is provided with a snap-fit ​​structure (322) for locking the baffle assembly (3). The snap-fit ​​structure (322) includes a connecting part (3221) arranged along the length direction of the mounting part (32) and a circular snap-fit ​​(3222) installed at the end of the connecting part (3221). The top frame (22) has a locking groove (223) on the side wall of the mounting groove (221) that cooperates with the circular snap-fit ​​(3222).

5. A hedge cutting device according to claim 4, characterized in that, The second slot (3212) is located in front of the first slot (3211). The top frame (22) is also provided with a transition slot (224) located in front of the locking slot (223) on the side wall of the mounting slot (221). The transition slot (224) has a guide slope (225).

6. A hedge cutting device according to claim 1, characterized in that, The baffle body (31) has a tail baffle (311) on the side facing the drive box (1), and the bottom of the tail baffle (311) abuts against the front end of the drive box (1).

7. A hedge cutting device according to claim 6, characterized in that, The tail baffle (311) is symmetrically arranged on both sides of the baffle body (31).

8. A hedge cutting device according to claim 1, characterized in that, The bottom of the mounting part (32) is provided with a weight-reducing groove (323) along the length direction, and a reinforcing rib (324) is provided in the weight-reducing groove (323) perpendicular to the length direction of the mounting part (32) and connected to the two side walls of the weight-reducing groove (323).

9. A hedge cutting device according to claim 1, characterized in that, The surface of the fixed base plate (21) is provided with a plurality of first through holes (214), and the top frame (22) is provided with a plurality of second through holes (226) at the bottom of the mounting groove (221) that are directly opposite to the first through holes (214). The top frame (22) and the fixed base plate (21) are fixed together by bolts.

10. A hedge cutting device according to claim 9, characterized in that, The movable blade (23) includes an upper blade (231) and a lower blade (232) arranged corresponding to the upper blade (231). The surface of the upper blade (231) is provided with a plurality of first waist-shaped holes (2312) that cooperate with the first through hole (214) along the length direction. The surface of the lower blade (232) is provided with a plurality of second waist-shaped holes (2322) that cooperate with the first through hole (214) and are arranged alternately with the first waist-shaped holes (2312) along the length direction.

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