Pruning machine with safety protection function

Abstract

The invention provides a pruner with a safety protection function. The pruner comprises a shell, a handle, a driving assembly, a saw blade assembly and a rear button. The handle is connected to the rear end of the shell; the rear end of the rear button is rotationally connected with the handle; a grip is fixed at the front part of the shell; the pruning machine further comprises a trigger switch, a front button, a trigger piece and a pushing assembly. The trigger switch is fixed in the shell; the front button is arranged on one side of the grip, and the lower end of the front button is rotationally connected with the shell; the triggering piece is arranged in the shell and located on one side of the triggering switch, the lower end of the triggering piece is rotationally connected with the lower end of the front button, and a protruding part is arranged on the side, facing the triggering switch, of the triggering piece; the pushing assembly is connected to the interior of the shell, one end of the pushing assembly is in transmission connection with the front end of the rear button, and the other end of the pushing assembly abuts against the rear side of the upper end of the triggering piece; only when the front button and the rear button are pressed at the same time, the pruning machine can be started, and potential safety hazards are eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of pruning machines, and in particular to a pruning machine with a safety protection function. Background Art

[0002] A pruning machine is a device for pruning branches. Current pruning machines generally include a shell, a handle, a driving assembly, a saw blade assembly, a trigger switch and a button; the driving assembly is fixed inside the shell, the saw blade assembly is fixed on the front end of the shell, and the saw blade assembly is transmission-connected to the driving assembly; the trigger switch is installed inside the shell, the driving assembly is electrically connected to the power cord after being connected in series with the trigger switch, the handle is connected to the rear end of the shell, the rear end of the button is rotationally connected to the handle, the front end of the button is used to trigger the trigger end of the trigger switch to energize the driving assembly and drive the saw blade assembly to move, and a spring for driving the button to rotate and reset is embedded between the front part of the button and the handle; however, in the above-mentioned pruning machine structure, the trigger switch can be triggered and turned on by pressing the button with one hand, that is, the pruning machine can be started by operating it with one hand, which can easily cause the moving saw blade assembly to injure the user's other hand, posing a great safety hazard. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a pruning machine with a safety protection function, in which the trigger switch can be triggered and turned on only when the handle is held and the front button is pressed, and the handle is held and the rear button is pressed, that is, the pruning machine can be started. In other words, as long as one of the front button and the rear button is not pressed, the pruning machine cannot be started, thereby eliminating safety hazards.

[0004] The present invention provides a pruning machine with a safety protection function, comprising a shell, a handle, a driving assembly, a saw blade assembly and a rear button; the driving assembly is fixed inside the shell, the saw blade assembly is fixed on the front end of the shell, and the saw blade assembly is transmission-connected to the driving assembly; the handle is connected to the rear end of the shell, the rear end of the rear button is rotationally connected to the handle, and a first spring for driving the rear button to rotate and reset is embedded between the front part of the rear button and the handle; a grip is fixed at the front of the shell; the pruning machine also comprises a trigger switch, a front button, a trigger member and a push assembly; the trigger switch is fixed inside the shell, and the driving assembly is electrically connected to the power line after being connected in series with the trigger switch; the front button is arranged on one side of the grip, and the lower end of the front button is rotationally connected to the shell The trigger member is arranged inside the shell and located on one side of the trigger switch, the lower end of the trigger member is rotatably connected to the lower end of the front button, and a protrusion for pushing the trigger end of the trigger switch is arranged on the side of the trigger member facing the trigger switch; the pushing assembly is connected inside the shell, one end of the pushing assembly is transmission-connected to the front end of the rear button, and the other end of the pushing assembly abuts against the rear side of the upper end of the trigger member; when the front button is pressed to make the front button close to the grip, the front button is used to drive the protrusion on the trigger member to approach the trigger end of the trigger switch, and when the rear button is pressed at the same time, the other end of the pushing assembly is used to push the upper end of the trigger member to push the trigger member to rotate relative to the front button, and make the protrusion trigger the trigger end of the trigger switch.

[0005] By adopting the above structure, the trigger switch can be triggered and turned on only when the grip is held and the front button is pressed, or the handle is held and the rear button is pressed, that is, the pruning machine can be started. In other words, the pruning machine cannot be started as long as one of the front button and the rear button is not pressed, thereby eliminating safety hazards.

[0006] In a possible embodiment, the handle is fixed or connected to the shell as a whole; the push assembly includes a push rod; the push rod is slidably connected to the shell forward and backward, the rear end of the push rod is movably connected to the front end of the rear button, the front end of the push rod extends to the rear side of the upper end of the trigger member and abuts against the rear side of the upper end of the trigger member; when the rear button is pressed, the rear button is used to drive the push rod to slide forward and make the front end of the push rod push the trigger member to rotate relative to the front button; after adopting this push assembly, in the state where the front button is pressed, that is, when the protrusion on the trigger member is close to the trigger end of the trigger switch, when the rear button is pressed, the rear button can drive the push rod to slide forward, and at this time, the front end of the push rod can push the trigger member to rotate relative to the front button, so that the protrusion can trigger the trigger end of the trigger switch, and when the trigger end of the trigger switch is triggered, the trigger switch can be turned on, so that the drive assembly can be energized and the drive assembly can drive the saw blade assembly to move; that is, after adopting the above structure, the user only needs to The pruning machine can be powered on and work only when the front button and the rear button are pressed by two hands respectively, thereby preventing the saw blade assembly from cutting the user's hands and eliminating safety hazards; in addition, after the rear button is released, under the action of the first spring, the first spring can drive the rear button to rotate and reset, at this time, the rear button can drive the push rod to slide backward and reset, thereby releasing the state in which the front end of the push rod pushes the upper end of the trigger member; in addition, by adopting the above structure, when only the front button is pressed, the protrusion on the trigger member can only approach the trigger end of the trigger switch but cannot trigger the trigger end of the trigger member, when only the rear button is pressed, although the push rod can push the trigger member to rotate toward one side of the trigger switch, because the protrusion on the trigger member is in a state of deviating from the trigger end of the trigger switch, the protrusion on the trigger member cannot trigger the trigger end of the trigger switch, that is, when either the front button or the rear button is not pressed, the pruning machine cannot be started, thereby eliminating safety hazards.

[0007] In a possible embodiment, the front and rear ends of the push rod are both provided with bent sections, and the inner wall of the shell is provided with slide grooves corresponding to the two bent sections one by one, and each bent section can be slidably inserted in one of the slide grooves forward and backward; the inner wall of the shell is also provided with a guide groove, and the middle part of the push rod can be slidably embedded in the guide groove forward and backward; the front end of the rear button is provided with a first slide hole, and the bent section located at the rear end of the push rod is inserted in the first slide hole and can slide along the first slide hole when the rear button rotates; after adopting this structure, since the bent sections located at the front and rear ends of the push rod can be slidably inserted in one of the slide grooves forward and backward, the push rod can be reliably connected to the shell The body is connected together by forward and backward sliding, and since the front and rear ends of the push rod are limited, it has the advantage of high reliability of the forward and backward sliding of the push rod; in addition, since a guide groove is also provided on the inner wall of the shell, the middle part of the push rod can be slidably embedded in the guide groove forward and backward, thereby realizing vertical limitation of the push rod, that is, the reliability of the forward and backward sliding of the push rod can be further improved; in addition, since the bent section at the rear end of the push rod is penetrated in the first sliding hole and can slide along the first sliding hole when the rear button rotates, the rear end of the push rod can be reliably connected to the lower end of the rotating member, and when the rear button rotates, it can reliably drive the push rod to slide forward and backward.

[0008] In a possible embodiment, the push assembly includes a pull wire, a rotating member and a push rod; the middle part of the rotating member is rotatably connected to the shell, the two ends of the pull wire are respectively buckled with the front end of the rear button and the upper end of the rotating member, the push rod can be slidably connected to the shell forward and backward, the rear end of the push rod is movably connected to the lower end of the rotating member, the front end of the push rod extends to the rear side of the upper end of the trigger member and abuts against the rear side of the upper end of the trigger member; when the rear button is pressed, the pull wire is used to drive the rotating member to rotate so that the rotating member pushes the push rod to slide forward and the front end of the push rod pushes the trigger member relative to the rear end. The front button rotates; after adopting this push assembly, when the front button is pressed, that is, when the protrusion on the trigger member is close to the trigger end of the trigger switch, when the rear button is pressed, the pull wire can drive the rotating member to rotate so that the rotating member pushes the push rod to slide forward, and at this time, the front end of the push rod can push the trigger member to rotate relative to the front button, so that the protrusion can trigger the trigger end of the trigger switch. When the trigger end of the trigger switch is triggered, the trigger switch can be turned on, so that the drive assembly can be energized and the drive assembly can drive the saw blade assembly movement; that is, by adopting the above structure, the pruning machine can only be powered on and work when the user presses the front button and the rear button with both hands respectively, thereby preventing the saw blade assembly from cutting the user's hands and eliminating safety hazards; in addition, after the rear button is released, under the action of the first spring, the first spring can drive the rear button to rotate and reset, at this time, the pull wire can pull the rotating member to rotate and reset, and the rotating member can drive the push rod to move backward and reset, thereby releasing the front end of the push rod from pushing the upper end of the trigger member; in addition, by adopting the above structure, when only the front button is pressed, the protrusion on the trigger member can only approach the trigger end of the trigger switch but cannot trigger the trigger end of the trigger member, when only the rear button is pressed, although the push rod can push the trigger member to rotate toward one side of the trigger switch, because the protrusion on the trigger member is in a state of deviating from the trigger end of the trigger switch, the protrusion on the trigger member cannot trigger the trigger end of the trigger switch, that is, when either the front button or the rear button is not pressed, the pruning machine cannot be started, thereby eliminating safety hazards.

[0009] In a possible embodiment, bending sections are provided at both the front and rear ends of the push rod, and sliding grooves corresponding to the two bending sections are provided on the inner wall of the shell, and each bending section can be slidably inserted in one of the sliding grooves forward and backward; a guide groove is also provided on the inner wall of the shell, and the middle part of the push rod can be slidably embedded in the guide groove forward and backward; after adopting this structure, since the bending sections located at the front and rear ends of the push rod can be slidably inserted in one of the sliding grooves forward and backward, the push rod can be reliably connected to the shell for forward and backward sliding, and since the front and rear ends of the push rod are limited, the push rod has the advantage of high reliability in forward and backward sliding; in addition, since a guide groove is also provided on the inner wall of the shell, the middle part of the push rod can be slidably embedded in the guide groove forward and backward, thereby realizing vertical limitation of the push rod, that is, the reliability of the push rod when sliding forward and backward can be further improved.

[0010] In a possible embodiment, a second sliding hole is provided on the lower end of the rotating member, and the bent section located at the rear end of the push rod is inserted into the second sliding hole and can slide along the second sliding hole when the rotating member rotates; after adopting this structure, since the bent section located at the rear end of the push rod is inserted into the second sliding hole and can slide along the second sliding hole when the rotating member rotates, the rear end of the push rod can be reliably movably connected to the lower end of the rotating member, and when the rotating member rotates, it can reliably drive the push rod to slide back and forth.

[0011] In a possible embodiment, the pushing assembly also includes a guide sleeve, which is connected to the inside of the handle, and the pull wire is movably passed through the guide sleeve; through the setting of the guide sleeve, the guide sleeve can guide the movement of the pull wire, that is, it can enable the pull wire to reliably pull the rotating part to rotate the rotating part.

[0012] In a possible embodiment, an annular convex edge is provided on the outer wall of the guide sleeve, and an embedding groove is provided on the inner wall of the handle, and the annular convex edge is embedded in the embedding groove; by adopting this structure, the guide sleeve can be reliably embedded in the interior of the shell, and has the advantages of convenient fixation of the guide sleeve and the shell, and can play a role in limiting the guide sleeve.

[0013] In a possible embodiment, the pruning machine also includes a locking assembly; the front end of the handle is rotatably connected to the rear end of the shell, and the locking assembly is arranged between the handle and the shell; when the handle is rotated to a predetermined position relative to the shell, the locking assembly is used to lock the handle and the shell; when the handle and the shell are not locked by the locking assembly, the locking assembly is used to limit the rear button from being pressed; by adopting this structure, when the handle and the shell are not locked by the locking assembly, the handle can be rotated relative to the shell, so that the user can easily adjust the angle of the handle relative to the shell to facilitate the grip of the handle and improve the comfort when gripping the handle; when the angle between the handle and the shell is adjusted, the locking assembly can re-lock the handle and the shell; in addition, when the handle and the shell are not locked by the locking assembly, the locking assembly can limit the rear button from being pressed, that is, the accidental start-up of the pruning machine can be avoided, thereby eliminating safety hazards.

[0014] In a possible embodiment, the locking assembly includes a locking button and a second spring, the locking button is vertically movably arranged on the top of the front end of the handle, the rear end of the locking button is rotatably connected to the handle, a plurality of circumferentially spaced card slots are arranged on the rear end of the shell, and a card block is arranged at the front end of the locking button, the card block is used to cooperate with one of the card slots to lock the handle and the shell; a supporting portion is arranged at the bottom of the rear end of the locking button, and a limiting portion is arranged at the top of the front end of the rear button; when the handle and the shell are not locked by the card block and the card slot, the supporting portion abuts against the limiting portion to limit the rear button from being pressed, and the second spring is embedded between the locking button and the handle. The locking button is used to drive the locking button to rotate and reset toward the side away from the handle; by adopting this locking assembly, after the handle is rotated and adjusted relative to the shell, when the handle and the shell are not locked by the block and the slot, the abutment portion is in a state of abutting against the limiting portion, and at this time, the rear button can be restricted from being pressed, thereby avoiding accidental start of the pruning machine and eliminating safety hazards; when the handle is rotated and adjusted relative to the shell, and after the block is engaged with one of the slots to lock the handle and the shell, the locking button can be rotated and reset under the action of the second spring, that is, the abutment portion can release the state of abutting against the limiting portion, and at this time, the rear button can be pressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of the first embodiment; Figure 2 It is a schematic diagram of the first three-dimensional structure after removing some structures of the first embodiment; Figure 3 for Figure 2 The schematic diagram of the structure after the enlargement of A in the middle; Figure 4 for Figure 2 The schematic diagram of the structure after the enlargement of B in the middle; Figure 5 for Figure 2The schematic diagram of the structure after enlargement at C in the middle; Figure 6 It is a second three-dimensional structural schematic diagram after some structures are removed from the first embodiment; Figure 7 It is a third three-dimensional structural schematic diagram after removing part of the structure of the first embodiment; Figure 8 It is a schematic diagram of the three-dimensional structure of the second implementation mode; Fig. 9 It is a first three-dimensional structural schematic diagram after some structures are removed from the second embodiment; Fig.10 This is a second three-dimensional structural schematic diagram of the second implementation mode after some structures are removed. DETAILED DESCRIPTION

[0016] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0017] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0018] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0019] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Implementation Method 1 See also Figure 1-7As shown, the embodiment of the present application discloses a pruning machine with a safety protection function, including a shell 1, a handle 2, a driving assembly 3, a saw blade assembly 4 and a rear button 5; the driving assembly 3 is fixed inside the shell 1, the saw blade assembly 4 is fixed on the front end of the shell 1, and the saw blade assembly 4 is transmission-connected to the driving assembly 3; the handle 2 is connected to the rear end of the shell 1, the rear end of the rear button 5 is rotationally connected to the handle 2, and a first spring for driving the rear button 5 to rotate and reset is embedded between the front part of the rear button 5 and the handle 2; a grip 6 is fixed to the front of the shell 1; the pruning machine also includes a trigger switch 7, a front button 8, a trigger member 9 and a push assembly; the trigger switch 7 is fixed inside the shell 1, and the driving assembly 3 is electrically connected to the power cord 71 after being connected in series with the trigger switch 7; the front button 8 is arranged on one side of the grip 6 and the lower end of the front button 8 is connected to the shell The trigger member 9 is rotatably connected to the housing 1; the trigger member 9 is arranged inside the housing 1 and is located on one side of the trigger switch 7, the lower end of the trigger member 9 is rotatably connected to the lower end of the front button 8, and the side of the trigger member 9 facing the trigger switch 7 is provided with a protrusion 91 for pushing the trigger end of the trigger switch 7; the pushing assembly is connected inside the housing 1, one end of the pushing assembly is transmission-connected to the front end of the rear button 5, and the other end of the pushing assembly abuts against the rear side of the upper end of the trigger member 9; when the front button 8 is pressed to make the front button 8 close to the grip 6, the front button 8 is used to drive the protrusion 91 on the trigger member 9 to approach the trigger end of the trigger switch 7, and when the rear button 5 is pressed at the same time, the other end of the pushing assembly is used to push the upper end of the trigger member 9 to push the trigger member 9 to rotate relative to the front button 8, and make the protrusion 91 trigger the trigger end of the trigger switch 7.

[0021] The push assembly includes a pull wire 10, a rotating member 20 and a push rod 30; the middle part of the rotating member 20 is rotatably connected to the housing 1, the two ends of the pull wire 10 are respectively buckled with the front end of the rear button 5 and the upper end of the rotating member 20, the push rod 30 can be slidably connected to the housing 1, the rear end of the push rod 30 is movably connected to the lower end of the rotating member 20, and the front end of the push rod 30 extends to the rear side of the upper end of the trigger member 9 and abuts against the rear side of the upper end of the trigger member 9; when the rear button 5 is pressed, the pull wire 10 is used to drive the rotating member 20 to rotate so that the rotating member 20 pushes the push rod 30 to slide forward And the front end of the push rod 30 pushes the trigger member 9 to rotate relative to the front button 8; after adopting this push assembly, when the front button is pressed, that is, when the protrusion on the trigger member is close to the trigger end of the trigger switch, when the rear button is pressed, the pull wire can drive the rotating member to rotate so that the rotating member pushes the push rod to slide forward, and at this time, the front end of the push rod can push the trigger member to rotate relative to the front button, so that the protrusion can trigger the trigger end of the trigger switch. When the trigger end of the trigger switch is triggered, the trigger switch can be turned on, so that the drive assembly can be energized. And the driving assembly drives the saw blade assembly to move; that is, by adopting the above structure, the pruning machine can be powered on and work only when the user presses the front button and the rear button with both hands respectively, thereby preventing the saw blade assembly from cutting the user's hands and eliminating safety hazards; in addition, after the rear button is released, under the action of the first spring, the first spring can drive the rear button to rotate and reset, at this time, the pull wire can pull the rotating part to rotate and reset, and the rotating part can drive the push rod to move backward and reset, thereby releasing the state where the front end of the push rod pushes the upper end of the trigger part; in addition, through After adopting the above structure, when only the front button is pressed, the protrusion on the trigger member can only approach the trigger end of the trigger switch but cannot trigger the trigger end of the trigger member. When only the rear button is pressed, although the push rod can push the trigger member to rotate toward one side of the trigger switch, the protrusion on the trigger member is in a state of deviation from the trigger end of the trigger switch, and thus the protrusion on the trigger member cannot trigger the trigger end of the trigger switch. That is, as long as one of the front button and the rear button is not pressed, the pruning machine cannot be started, thereby eliminating safety hazards.

[0022] The front and rear ends of the push rod 30 are both provided with bending sections 301, and the inner wall of the shell 1 is provided with sliding grooves 11 corresponding to the two bending sections 301, and each bending section 301 can be slidably inserted in one of the sliding grooves 11; the inner wall of the shell 1 is also provided with a guide groove 13, and the middle part of the push rod 30 can be slidably embedded in the guide groove 13; after adopting this structure, since the bending sections located at the front and rear ends of the push rod can be slidably inserted in one of the sliding grooves, the push rod can be reliably connected to the shell for front and rear sliding, and since the front and rear ends of the push rod are limited, it has the advantage of high reliability of the push rod sliding forward and backward; in addition, since the inner wall of the shell is also provided with a guide groove, the middle part of the push rod can be slidably embedded in the guide groove forward and backward, thereby realizing vertical limitation of the push rod, that is, the reliability of the push rod when sliding forward and backward can be further improved.

[0023] A second sliding hole 201 is provided on the lower end of the rotating member 20, and the bent section 301 located at the rear end of the push rod 30 is inserted into the second sliding hole 201 and can slide along the second sliding hole 201 when the rotating member 20 rotates; by adopting this structure, since the bent section located at the rear end of the push rod is inserted into the second sliding hole and can slide along the second sliding hole when the rotating member rotates, the rear end of the push rod can be reliably movably connected with the lower end of the rotating member, and when the rotating member rotates, it can reliably drive the push rod to slide back and forth.

[0024] The push assembly also includes a guide sleeve 40, which is connected to the inside of the handle 2, and the pull wire 10 is movably inserted into the guide sleeve 40; through the setting of the guide sleeve, the guide sleeve can guide the movement of the pull wire, that is, it can enable the pull wire to reliably pull the rotating part to rotate the rotating part.

[0025] An annular convex edge 401 is provided on the outer wall of the guide sleeve 40, and an embedding groove 21 is provided on the inner wall of the handle 2, and the annular convex edge 401 is embedded in the embedding groove 21; by adopting this structure, the guide sleeve can be reliably embedded in the interior of the shell, and has the advantages of convenient fixation of the guide sleeve and the shell, and can play a role in limiting the guide sleeve.

[0026] The pruning machine also includes a locking assembly; the front end of the handle 2 is rotatably connected to the rear end of the shell 1, and the locking assembly is arranged between the handle 2 and the shell 1; when the handle 2 is rotated to a predetermined position relative to the shell 1, the locking assembly is used to lock the handle 2 and the shell 1; when the handle 2 and the shell 1 are not locked by the locking assembly, the locking assembly is used to limit the rear button 5 from being pressed; by adopting this structure, when the handle and the shell are not locked by the locking assembly, the handle can be rotated relative to the shell, so that the user can conveniently adjust the angle of the handle relative to the shell to facilitate the grip of the handle and improve the comfort when gripping the handle; when the angle between the handle and the shell is adjusted, the locking assembly can re-lock the handle and the shell; in addition, when the handle and the shell are not locked by the locking assembly, the locking assembly can limit the rear button from being pressed, that is, the accidental start-up of the pruning machine can be avoided, thereby eliminating safety hazards.

[0027] The locking assembly includes a locking button 50 and a second spring 60. The locking button 50 is vertically movably arranged on the top of the front end of the handle 2. The rear end of the locking button 50 is rotatably connected to the handle 2. A plurality of slots 12 distributed at circumferential intervals are arranged on the rear end of the shell 1. A card block 501 is arranged at the front end of the locking button 50. The card block 501 is used to cooperate with one of the slots 12 to lock the handle 2 and the shell 1; a supporting portion 502 is arranged at the bottom of the rear end of the locking button 50, and a limiting portion 51 is arranged at the top of the front end of the rear button 5; when the handle 2 and the shell 1 are not locked by the card block 501 and the slot 12, the supporting portion 502 abuts against the limiting portion 51 to limit the rear button 5 from being pressed, and the second spring 60 is used to cooperate with the card block 501 and the slot 12 to lock the handle 2 and the shell 1; The spring 60 is embedded between the locking button 50 and the handle 2 and is used to drive the locking button 50 to rotate and reset toward the side away from the handle 2; by adopting this locking assembly, after the handle is rotated and adjusted relative to the shell, when the handle and the shell are not locked by the block and the slot, the abutment portion is in a state of abutting against the limit portion, and at this time, the rear button can be restricted from being pressed, thereby avoiding accidental start-up of the pruning machine and eliminating safety hazards; when the handle is rotated and adjusted relative to the shell, and after the block is engaged with one of the slots to lock the handle and the shell, the locking button can be rotated and reset under the action of the second spring, that is, the abutment portion can release the state of abutting against the limit portion, and at this time, the rear button can be pressed.

[0028] Implementation Method 2 See also Figure 8-10 As shown, the difference from the first embodiment is that: The handle 2 is fixed or connected to the housing 1 as a whole; the push assembly includes a push rod 30; the push rod 30 is connected to the housing 1 in a slidable manner forward and backward, the rear end of the push rod 30 is movably connected to the front end of the rear button 5, and the front end of the push rod 30 extends to the rear side of the upper end of the trigger member 9 and abuts against the rear side of the upper end of the trigger member 9; when the rear button 5 is pressed, the rear button 5 is used to drive the push rod 30 to slide forward and make the front end of the push rod 30 push the trigger member 9 to rotate relative to the front button 8; by adopting this push assembly, in the state where the front button is pressed, that is, when the protrusion on the trigger member is close to the trigger end of the trigger switch, when the rear button is pressed, the rear button can drive the push rod to slide forward, and at this time, the front end of the push rod can push the trigger member to rotate relative to the front button, so that the protrusion can trigger the trigger end of the trigger switch, and when the trigger end of the trigger switch is triggered, the trigger switch can be turned on, so that the drive assembly can be energized and the drive assembly can drive the saw blade assembly to move; that is, by adopting the above structure, , the pruning machine can only be powered on and work when the user presses the front button and the rear button with both hands respectively, thereby preventing the saw blade assembly from cutting the user's hands and eliminating safety hazards; in addition, after the rear button is released, under the action of the first spring, the first spring can drive the rear button to rotate and reset, at this time, the rear button can drive the push rod to slide backward and reset, thereby releasing the state in which the front end of the push rod pushes the upper end of the trigger member; in addition, by adopting the above structure, when only the front button is pressed, the protrusion on the trigger member can only approach the trigger end of the trigger switch but cannot trigger the trigger end of the trigger member, when only the rear button is pressed, although the push rod can push the trigger member to rotate toward one side of the trigger switch, because the protrusion on the trigger member is in a state of deviating from the trigger end of the trigger switch, the protrusion on the trigger member cannot trigger the trigger end of the trigger switch, that is, when either the front button or the rear button is not pressed, the pruning machine cannot be started, thereby eliminating safety hazards.

[0029] The front and rear ends of the push rod 30 are both provided with bent sections 301, and the inner wall of the shell 1 is provided with slide grooves 11 corresponding to the two bent sections 301, and each bent section 301 can be inserted into one of the slide grooves 11 in a forward and backward sliding manner; the inner wall of the shell 1 is also provided with a guide groove 13, and the middle part of the push rod 30 can be inserted into the guide groove 13 in a forward and backward sliding manner; the front end of the rear button 5 is provided with a first slide hole 52, and the bent section 301 located at the rear end of the push rod 30 is inserted into the first slide hole 52 and can slide along the first slide hole 52 when the rear button 5 rotates; after adopting this structure, since the bent sections located at the front and rear ends of the push rod can be inserted into one of the slide grooves in a forward and backward sliding manner, The push rod can be reliably connected to the shell body for sliding forward and backward, and since the front and rear ends of the push rod are limited, it has the advantage of high reliability of the push rod sliding forward and backward; in addition, since a guide groove is also provided on the inner wall of the shell, the middle part of the push rod can be slidably embedded in the guide groove forward and backward, thereby realizing vertical limitation of the push rod, that is, the reliability of the push rod sliding forward and backward can be further improved; in addition, since the bent section at the rear end of the push rod is inserted into the first sliding hole and can slide along the first sliding hole when the rear button rotates, the rear end of the push rod can be reliably connected to the lower end of the rotating member, and when the rear button rotates, it can reliably drive the push rod to slide forward and backward.

[0030] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A pruning machine with a safety protection function, comprising a housing (1), a handle (2), a driving assembly (3), a saw blade assembly (4) and a rear button (5); the driving assembly (3) is fixed inside the housing (1), the saw blade assembly (4) is fixed on the front end of the housing (1), and the saw blade assembly (4) is transmission-connected to the driving assembly (3); the handle (2) is connected to the rear end of the housing (1), the rear end of the rear button (5) is rotationally connected to the handle (2), and a first spring for driving the rear button (5) to rotate and reset is embedded between the front part of the rear button (5) and the handle (2); a grip (6) is fixed to the front part of the housing (1); the characteristics are: The pruning machine further comprises a trigger switch (7), a front button (8), a trigger member (9) and a push assembly; the trigger switch (7) is fixed inside the housing (1); the drive assembly (3) is connected in series with the trigger switch (7) and is electrically connected to a power line (71); the front button (8) is arranged on one side of the handle (6) and the lower end of the front button (8) is rotatably connected to the housing (1); the trigger member (9) is arranged inside the housing (1) and located on one side of the trigger switch (7); the lower end of the trigger member (9) is rotatably connected to the lower end of the front button (8); and a trigger end for pushing the trigger switch (7) is arranged on the side of the trigger member (9) facing the trigger switch (7). The push assembly is connected to the inside of the housing (1), one end of the push assembly is transmission-connected to the front end of the rear button (5), and the other end of the push assembly abuts against the rear side of the upper end of the trigger member (9); when the front button (8) is pressed to bring the front button (8) close to the handle (6), the front button (8) is used to drive the protrusion (91) on the trigger member (9) close to the trigger end of the trigger switch (7), and when the rear button (5) is pressed at the same time, the other end of the push assembly is used to push the upper end of the trigger member (9) to drive the trigger member (9) to rotate relative to the front button (8), and to cause the protrusion (91) to trigger the trigger end of the trigger switch (7).

2. The pruning machine with safety protection function according to claim 1, characterized in that: The handle (2) is fixed or connected to the housing (1) as a whole; the push assembly comprises a push rod (30); the push rod (30) is connected to the housing (1) in a manner that allows it to slide forward and backward, the rear end of the push rod (30) is movably connected to the front end of the rear button (5), the front end of the push rod (30) extends to the rear side of the upper end of the trigger member (9) and abuts against the rear side of the upper end of the trigger member (9); when the rear button (5) is pressed, the rear button (5) is used to drive the push rod (30) to slide forward and cause the front end of the push rod (30) to push the trigger member (9) to rotate relative to the front button (8).

3. The pruning machine with safety protection function according to claim 2 is characterized in that: The push rod (30) is provided with a bent section (301) at both the front and rear ends, and a slide groove (11) corresponding to the two bent sections (301) is provided on the inner wall of the housing (1), and each of the bent sections (301) can be inserted into one of the slide grooves (11) in a forward and backward sliding manner; a guide groove (13) is also provided on the inner wall of the housing (1), and the middle part of the push rod (30) can be slidably embedded in the guide groove (13) in a forward and backward sliding manner; a first slide hole (52) is provided at the front end of the rear button (5), and the bent section (301) located at the rear end of the push rod (30) is inserted into the first slide hole (52) and can slide along the first slide hole (52) when the rear button (5) rotates.

4. The pruning machine with safety protection function according to claim 1, characterized in that: The push assembly comprises a pull wire (10), a rotating member (20) and a push rod (30); the middle portion of the rotating member (20) is rotatably connected to the housing (1), the two ends of the pull wire (10) are respectively buckled with the front end of the rear button (5) and the upper end of the rotating member (20), the push rod (30) is slidably connected to the housing (1), the rear end of the push rod (30) is movably connected to the lower end of the rotating member (20), and the front end of the push rod (30) extends to the rear side of the upper end of the trigger member (9) and abuts against the rear side of the upper end of the trigger member (9); when the rear button (5) is pressed, the pull wire (10) is used to drive the rotating member (20) to rotate so that the rotating member (20) pushes the push rod (30) to slide forward and the front end of the push rod (30) pushes the trigger member (9) to rotate relative to the front button (8).

5. The pruning machine with safety protection function according to claim 4 is characterized in that: The push rod (30) is provided with a bending section (301) at both the front and rear ends, and the inner wall of the shell (1) is provided with a slide groove (11) corresponding to the two bending sections (301) one by one, and each bending section (301) can be inserted into one of the slide grooves (11) in a forward and backward sliding manner; the inner wall of the shell (1) is also provided with a guide groove (13), and the middle part of the push rod (30) can be slidably embedded in the guide groove (13) in a forward and backward sliding manner.

6. The pruning machine with safety protection function according to claim 5, characterized in that: A second sliding hole (201) is provided at the lower end of the rotating member (20), and a bent section (301) located at the rear end of the push rod (30) is inserted into the second sliding hole (201) and can slide along the second sliding hole (201) when the rotating member (20) rotates.

7. The pruning machine with safety protection function according to claim 4, characterized in that: The push assembly further comprises a guide sleeve (40), the guide sleeve (40) being connected to the interior of the handle (2), and the pull wire (10) being movably arranged in the guide sleeve (40).

8. The pruning machine with safety protection function according to claim 7, characterized in that: An annular convex edge (401) is provided on the outer wall of the guide sleeve (40), an embedding groove (21) is provided on the inner wall of the handle (2), and the annular convex edge (401) is embedded in the embedding groove (21).

9. The pruning machine with safety protection function according to claim 4, characterized in that: The pruning machine further comprises a locking assembly; the front end of the handle (2) is rotatably connected to the rear end of the housing (1), and the locking assembly is arranged between the handle (2) and the housing (1); when the handle (2) is rotated to a predetermined position relative to the housing (1), the locking assembly is used to lock the handle (2) and the housing (1); when the handle (2) and the housing (1) are not locked by the locking assembly, the locking assembly is used to restrict the rear button (5) from being pressed.

10. The pruning machine with safety protection function according to claim 9, characterized in that: The locking assembly comprises a locking button (50) and a second spring (60); the locking button (50) is vertically movably arranged on the top of the front end of the handle (2); the rear end of the locking button (50) is rotatably connected to the handle (2); a plurality of slots (12) distributed at circumferential intervals are arranged on the rear end of the housing (1); a card block (501) is arranged at the front end of the locking button (50); the card block (501) is used to cooperate with one of the slots (12) to lock the handle (2) and the housing (1); The bottom of the rear end of the locking button (50) is provided with abutment portion (502), and the top of the front end of the rear button (5) is provided with a limiting portion (51); when the handle (2) and the housing (1) are not locked by the locking block (501) and the locking slot (12), the abutment portion (502) abuts against the limiting portion (51) to limit the rear button (5) from being pressed, and the second spring (60) is embedded between the locking button (50) and the handle (2) and is used to drive the locking button (50) to rotate and reset toward a side away from the handle (2).

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