Leaf crusher with safety protection function

Abstract

The invention provides a leaf smashing machine with a safety protection function. The leaf smashing machine comprises a supporting frame body, a machine shell, a driving assembly, a smashing head, a feeding hopper and a collecting bag. The machine shell is fixed to the supporting frame body, the driving assembly is fixed to the inner side of the machine shell, the smashing head is in transmission connection with the driving end of the driving assembly, the feeding hopper is detachably connected to the upper end of the machine shell, and the collecting bag is detachably connected to the lower end of the machine shell. The leaf crusher further comprises a trigger switch, a trigger unit and a trigger piece. The trigger switch is fixed in the shell; the driving assembly is electrically connected with the power line after being connected in series with the trigger switch and the power switch; the triggering unit is arranged on the inner side of the machine shell, and the triggering piece is connected to a bag opening in the upper end of the collecting bag; the trigger unit is provided with an upper trigger end and a lower trigger end; when the upper trigger end and the lower trigger end of the trigger unit are triggered at the same time, the trigger unit is used for triggering the control end of the trigger switch so as to conduct the trigger switch; accidental starting of the leaf crushing machine can be avoided, and potential safety hazards are eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of leaf crushers, and in particular to a leaf crusher with a safety protection function. Background Art

[0002] A leaf crusher is a device for crushing leaves. Currently, leaf crushers on the market mainly include a supporting frame, a casing, a driving assembly, a crushing head, a feed hopper and a collecting bag; the casing is fixed on the supporting frame, the driving assembly is fixed on the inner side of the casing, the crushing head is located in the casing above the driving assembly and is transmission-connected to the driving end of the driving assembly, the feed hopper is detachably connected to the upper end of the casing, and the collecting bag is detachably connected to the lower end of the casing; however, in existing leaf crushers, when the casing is not equipped with a feed hopper and / or a collecting bag, the driving assembly can still drive the crushing head to rotate, which makes it easy for the staff's hands to come into contact with the rotating crushing head, posing a great safety hazard. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a leaf crusher with a safety protection function, which can avoid accidental startup of the leaf crusher and eliminate safety hazards.

[0004] The present invention provides a leaf crusher with a safety protection function, comprising a supporting frame, a casing, a driving assembly, a crushing head, a feeding hopper and a collecting bag; the casing is fixed on the supporting frame, the driving assembly is fixed on the inner side of the casing, the crushing head is located in the casing above the driving assembly and is transmission-connected to the driving end of the driving assembly, the feeding hopper is detachably connected to the upper end of the casing, and the collecting bag is detachably connected to the lower end of the casing; the leaf crusher also includes a trigger switch, a trigger unit and a trigger member; the trigger switch is fixed inside the casing, the driving assembly is connected in series with the trigger switch and the power switch and then electrically connected to the power line; the trigger unit is arranged on the inner side of the casing, and the trigger member is connected to the bag opening at the upper end of the collecting bag; the trigger unit has an upper trigger end and a lower trigger end, when the feeding hopper is connected to the upper end of the casing, the upper trigger end of the trigger unit is triggered, when the collecting bag is connected to the lower end of the casing, the trigger member is used to trigger the lower trigger end of the trigger unit; when the upper trigger end and the lower trigger end of the trigger unit are triggered simultaneously, the trigger unit is used to trigger the control end of the trigger switch to turn on the trigger switch.

[0005] By adopting the above-mentioned structure, as long as the casing is not equipped with a feed hopper and / or a collecting bag, the trigger unit cannot trigger the control end of the trigger switch, that is, the trigger switch cannot be turned on, and because the driving component is electrically connected to the power cord after the trigger switch and the power switch are connected in series, when the casing is not equipped with a feed hopper and / or a collecting bag, the driving component can be prevented from driving the crushing head to rotate, that is, the accidental start-up of the leaf shredder can be avoided, and the staff's hands can be prevented from touching the rotating crushing head, thereby eliminating safety hazards.

[0006] In a possible embodiment, the trigger unit includes an upper trigger rod, a lower trigger rod and a spring; the upper trigger rod and the lower trigger rod are arranged on the inner side of the casing at an interval up and down, the upper trigger rod and the lower trigger rod are both vertically slidably connected to the casing and the upper trigger rod can be horizontally swung relative to the casing, the upper end of the upper trigger rod forms the upper trigger end of the trigger unit, and the lower end of the lower trigger rod forms the lower trigger end of the trigger unit, the spring is arranged between the upper trigger rod and the lower trigger rod, the two ends of the spring are respectively abutted against the lower end of the upper trigger rod and the upper end of the lower trigger rod, and the spring is used to apply an elastic force to the upper trigger rod and the lower trigger rod to drive the upper trigger rod and the lower trigger rod away from each other; when the feed hopper is connected to the upper end of the casing, the feed hopper is used to push the upper trigger rod to slide downward, and when the collecting bag is connected to the lower end of the casing, the trigger member is used to push the lower trigger rod to slide upward; when the upper trigger rod slides downward and the lower trigger rod slides upward, the lower trigger rod is used to The upper trigger rod is pushed to deflect horizontally so that the lower end of the upper trigger rod triggers the control end of the trigger switch to turn on the trigger switch; by adopting the above structure, when the feed hopper is connected to the upper end of the casing, the feed hopper can push the upper trigger rod to slide downward, and when the collecting bag is connected to the lower end of the casing, the trigger member can push the lower trigger rod to slide upward; when the upper trigger rod slides downward and after the lower trigger rod slides upward, the lower trigger rod can push the upper trigger rod to deflect horizontally so that the lower end of the upper trigger rod triggers the control end of the trigger switch to turn on the trigger switch; that is, by adopting the above structure, only after the feed hopper is connected to the upper end of the casing and the collecting bag is assembled to the lower end of the casing, the trigger switch can be turned on, that is, the drive assembly can be energized and drive the crushing head to rotate, that is, when the feed hopper or the collecting bag is not assembled to the casing, it can avoid the drive assembly accidentally driving the crushing head to rotate, thereby eliminating safety hazards.

[0007] In a possible embodiment, an annular groove is provided at the upper end of the casing, and the upper end of the upper trigger rod is movable through the bottom of the annular groove and then extends into the annular groove; when the feed hopper is connected to the upper end of the casing, the lower end of the feed hopper is used to insert into the annular groove and push the upper trigger rod to slide downward; by adopting the above structure, when the feed hopper is connected to the upper end of the casing, the lower end of the feed hopper can be inserted into the annular groove and push the upper trigger rod to slide downward, that is, the upper trigger end of the trigger unit can be triggered, and then when the feed hopper is not assembled on the casing, it can prevent the driving assembly from accidentally driving the crushing head to rotate, thereby eliminating safety hazards.

[0008] In a possible embodiment, the trigger member includes a plug-in portion and a hand-held portion; a slot with an outer end opening is provided on the housing, the slot is horizontally arranged, the lower end of the lower trigger rod extends into the slot, the outer end of the plug-in portion is connected to the inner side wall of the hand-held portion as a whole, the inner end of the plug-in portion is used to be inserted into the slot, the top of the inner end of the plug-in portion is provided with a first guide surface, and the outer side of the lower end of the lower trigger rod is provided with a second guide surface; when the plug-in portion is inserted into the slot, the first guide surface is used to cooperate with the second guide surface for guidance so that the plug-in portion pushes the lower trigger rod to slide upward, and the hand-held portion is connected to the collection bag At the bag opening at the upper end; by adopting the above structure, when the plug-in part is inserted into the slot, the first guide surface can cooperate with the second guide surface to guide so that the plug-in part pushes the lower trigger rod to slide upward, that is, the trigger member can trigger the lower trigger end of the trigger unit; in addition, since the hand-held part is connected to the bag opening at the upper end of the collecting bag, the plug-in part can be inserted into the slot and push the lower trigger rod to slide upward only after the bag opening of the collecting bag is connected to the lower end of the casing, and then when the collecting bag is not assembled on the casing, it can avoid the driving component accidentally driving the crushing head to rotate, thereby eliminating safety hazards.

[0009] In a possible embodiment, an annular flange is provided on the outer wall of the lower end of the casing, a strap is fixed at the bag opening of the collecting bag, the bag opening of the collecting bag is sleeved on the outside of the casing above the annular flange and is fastened to the casing through the strap, and the hand-held portion of the trigger member is fixed to the strap; by adopting this structure, when the bag opening of the collecting bag is sleeved on the outside of the casing above the annular flange and after the strap is fastened to the casing, the annular flange can prevent the strap from detaching from the casing from top to bottom, thereby effectively preventing the bag opening of the collecting bag from detaching from the casing, that is, the reliability of the collection bag after assembly with the casing can be improved.

[0010] In a possible embodiment, a first inclined surface is provided on the outer side of the lower end of the upper trigger rod, and a second inclined surface is provided on the inner side of the upper end of the lower trigger rod; when the upper trigger rod slides downward and the lower trigger rod slides upward, the first inclined surface is used to cooperate with the second inclined surface for guiding so that the lower trigger rod pushes the upper trigger rod to deflect horizontally, and the lower end of the upper trigger rod triggers the control end of the trigger switch to turn on the trigger switch; after adopting the above structure, when the upper trigger rod slides downward and the lower trigger rod slides upward, the first inclined surface can cooperate with the second inclined surface for guiding so that the lower trigger rod pushes the upper trigger rod to deflect horizontally, and the lower end of the upper trigger rod triggers the control end of the trigger switch to turn on the trigger switch, so that only when the feed hopper is connected to the upper end of the casing and the collecting bag is assembled on the lower end of the casing, the trigger switch can be turned on, that is, the drive assembly can be energized and drive the crushing head to rotate, that is, when the feed hopper or the collecting bag is not assembled on the casing, it can avoid the drive assembly accidentally driving the crushing head to rotate, thereby eliminating safety hazards.

[0011] In a possible embodiment, a first concave cavity is provided at the lower end of the upper trigger rod, and a second concave cavity is provided at the upper end of the lower trigger rod, the upper end of the spring is inserted into the first concave cavity and abuts against the inner top of the first concave cavity, and the lower end of the spring is inserted into the second concave cavity and abuts against the inner bottom of the second concave cavity; by adopting this structure, the upper end of the spring can be inserted into the first concave cavity and abut against the inner top of the first concave cavity, and the lower end of the spring can be inserted into the second concave cavity and abut against the inner bottom of the second concave cavity, thereby limiting the spring to avoid the spring from detaching from the upper trigger rod and the lower trigger rod, that is, the spring can reliably apply an elastic force to the upper trigger rod and the lower trigger rod to drive the upper trigger rod and the lower trigger rod away from each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic cross-sectional view of the present invention after the support frame and the collection bag are removed; Figure 3 for Figure 2 Schematic diagram of the structure after enlargement at A in the middle. DETAILED DESCRIPTION

[0013] 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.

[0014] 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.

[0015] 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.

[0016] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] See also Figure 1-3 As shown, the embodiment of the present application discloses a leaf shredder with a safety protection function, including a supporting frame 1, a casing 2, a driving assembly 3, a crushing head 4, a feed hopper 5 and a collecting bag 6; the casing 2 is fixed on the supporting frame 1, the driving assembly 3 is fixed on the inner side of the casing 2, the crushing head 4 is located in the casing 2 above the driving assembly 3 and is transmission-connected to the driving end of the driving assembly 3, the feed hopper 5 is detachably connected to the upper end of the casing 2, and the collecting bag 6 is detachably connected to the lower end of the casing 2; the leaf shredder also includes a trigger switch 7, a trigger unit and a trigger member 10; the trigger switch 7 is fixed to the inner side of the casing 2 The driving component 3 is connected in series with the trigger switch 7 and the power switch 8 and then electrically connected to the power cord 9; the trigger unit is arranged on the inner side of the casing 2, and the trigger member 10 is connected to the bag mouth at the upper end of the collecting bag 6; the trigger unit has an upper trigger end and a lower trigger end, when the feed hopper 5 is connected to the upper end of the casing 2, the upper trigger end of the trigger unit is triggered, and when the collecting bag 6 is connected to the lower end of the casing 2, the trigger member 10 is used to trigger the lower trigger end of the trigger unit; when the upper trigger end and the lower trigger end of the trigger unit are triggered at the same time, the trigger unit is used to trigger the control end of the trigger switch 7 to turn on the trigger switch 7.

[0018] The trigger unit includes an upper trigger rod 20, a lower trigger rod 30 and a spring 40; the upper trigger rod 20 and the lower trigger rod 30 are arranged on the inner side of the housing 2 at an interval, the upper trigger rod 20 and the lower trigger rod 30 are vertically slidably connected to the housing 2, and the upper trigger rod 20 can be horizontally deflected relative to the housing 2, the upper end of the upper trigger rod 20 forms the upper trigger end of the trigger unit, the lower end of the lower trigger rod 30 forms the lower trigger end of the trigger unit, and the spring 40 is arranged between the upper trigger rod 20 and the lower trigger rod 30. , the two ends of the spring 40 are respectively against the lower end of the upper trigger rod 20 and the upper end of the lower trigger rod 30, and the spring 40 is used to apply an elastic force to the upper trigger rod 20 and the lower trigger rod 30 to drive the upper trigger rod 20 and the lower trigger rod 30 away from each other; when the feed hopper 5 is connected to the upper end of the housing 2, the feed hopper 5 is used to push the upper trigger rod 20 to slide downward, and when the collecting bag 6 is connected to the lower end of the housing 2, the trigger member 10 is used to push the lower trigger rod 30 to slide upward; when the upper trigger rod 20 slides downward After the lower trigger rod 30 slides upward, the lower trigger rod 30 is used to push the upper trigger rod 20 to deflect horizontally so that the lower end of the upper trigger rod 20 triggers the control end of the trigger switch 7 to turn on the trigger switch 7; by adopting the above structure, when the feed hopper is connected to the upper end of the casing, the feed hopper can push the upper trigger rod to slide downward, and when the collecting bag is connected to the lower end of the casing, the trigger member can push the lower trigger rod to slide upward; when the upper trigger rod slides downward and after the lower trigger rod slides upward, the lower trigger rod can push the upper trigger rod to deflect horizontally so that the lower end of the upper trigger rod triggers the control end of the trigger switch to turn on the trigger switch; that is, by adopting the above structure, only after the feed hopper is connected to the upper end of the casing and the collecting bag is assembled to the lower end of the casing, the trigger switch can be turned on, that is, the drive assembly can be energized and drive the crushing head to rotate, that is, when the feed hopper or the collecting bag is not assembled to the casing, it can avoid the drive assembly accidentally driving the crushing head to rotate, thereby eliminating safety hazards.

[0019] An annular groove 21 is provided at the upper end of the casing 2, and the upper end of the upper trigger rod 20 movably penetrates the bottom of the annular groove 21 and then extends into the annular groove 21; when the feed hopper 5 is connected to the upper end of the casing 2, the lower end of the feed hopper 5 is used to insert into the annular groove 21 and push the upper trigger rod 20 to slide downward; by adopting the above structure, when the feed hopper is connected to the upper end of the casing, the lower end of the feed hopper can be inserted into the annular groove and push the upper trigger rod to slide downward, that is, the upper trigger end of the trigger unit can be triggered, and then when the feed hopper is not assembled on the casing, it can avoid the driving assembly accidentally driving the crushing head to rotate, thereby eliminating safety hazards.

[0020] The trigger member 10 includes a plug-in portion 101 and a hand-held portion 102; a slot 22 with an outer end opening is provided on the housing 2, the slot 22 is horizontally arranged, the lower end of the lower trigger rod 30 extends into the slot 22, the outer end of the plug-in portion 101 is connected to the inner side wall of the hand-held portion 102 as a whole, the inner end of the plug-in portion 101 is used to be inserted into the slot 22, the top of the inner end of the plug-in portion 101 is provided with a first guide surface 103, and the outer side of the lower end of the lower trigger rod 30 is provided with a second guide surface 301; when the plug-in portion 101 is inserted into the slot 22, the first guide surface 103 is used to cooperate with the second guide surface 301 for guidance so that the plug-in portion 101 pushes the lower trigger rod 30 The trigger rod 30 slides upward, and the hand-held part 102 is connected to the bag opening at the upper end of the collecting bag 6; by adopting the above structure, when the plug-in part is inserted into the slot, the first guide surface can cooperate with the second guide surface to guide so that the plug-in part pushes the lower trigger rod to slide upward, that is, the trigger member can trigger the lower trigger end of the trigger unit; in addition, because the hand-held part is connected to the bag opening at the upper end of the collecting bag, the plug-in part can be inserted into the slot and push the lower trigger rod to slide upward only after the bag opening of the collecting bag is connected to the lower end of the casing, and then when the collecting bag is not assembled on the casing, it can avoid the driving component from accidentally driving the crushing head to rotate, thereby eliminating safety hazards.

[0021] An annular flange 23 is provided on the outer wall of the lower end of the casing 2, and a strap is fixed at the bag opening of the collecting bag 6. The bag opening of the collecting bag 6 is sleeved on the outside of the casing 2 located above the annular flange 23 and is fastened to the casing 2 through the strap, and the hand-held portion 102 of the trigger member 10 is fixed to the strap. By adopting this structure, when the bag opening of the collecting bag is sleeved on the outside of the casing located above the annular flange and after the strap is fastened to the casing, the annular flange can prevent the strap from detaching from the casing from top to bottom, thereby effectively preventing the bag opening of the collecting bag from detaching from the casing, that is, the reliability of the collecting bag and the casing after assembly can be improved.

[0022] A first inclined surface 201 is provided on the outer side of the lower end of the upper trigger rod 20, and a second inclined surface 302 is provided on the inner side of the upper end of the lower trigger rod 30; when the upper trigger rod 20 slides downward and the lower trigger rod 30 slides upward, the first inclined surface 201 is used to cooperate with the second inclined surface 302 to guide the lower trigger rod 30 to push the upper trigger rod 20 to deflect horizontally, and the lower end of the upper trigger rod 20 triggers the control end of the trigger switch 7 to turn on the trigger switch 7; after adopting the above structure, when the upper trigger rod slides downward and the lower trigger rod slides upward, the first inclined surface 201 is used to cooperate with the second inclined surface 302 to guide the lower trigger rod 30 to push the upper trigger rod 20 to deflect horizontally, and the lower end of the upper trigger rod 20 triggers the control end of the trigger switch 7 to turn on the trigger switch 7. The first inclined surface can cooperate with the second inclined surface to guide so that the lower trigger rod pushes the upper trigger rod to swing horizontally, and the lower end of the upper trigger rod triggers the control end of the trigger switch to turn on the trigger switch, so that only when the feed hopper is connected to the upper end of the casing and the collecting bag is assembled on the lower end of the casing, the trigger switch can be turned on, that is, the drive component can be energized and drive the crushing head to rotate, that is, when the feed hopper or the collecting bag is not assembled on the casing, it can avoid the drive component accidentally driving the crushing head to rotate, thereby eliminating safety hazards.

[0023] A first concave cavity 202 is provided at the lower end of the upper trigger rod 20, and a second concave cavity 303 is provided at the upper end of the lower trigger rod 30. The upper end of the spring 40 is inserted into the first concave cavity 202 and abuts against the inner top of the first concave cavity 202, and the lower end of the spring 40 is inserted into the second concave cavity 303 and abuts against the inner bottom of the second concave cavity 303. By adopting this structure, the upper end of the spring can be inserted into the first concave cavity and abut against the inner top of the first concave cavity, and the lower end of the spring can be inserted into the second concave cavity and abut against the inner bottom of the second concave cavity, thereby limiting the spring to avoid the spring from being separated from the upper trigger rod and the lower trigger rod, that is, the spring can reliably apply an elastic force to the upper trigger rod and the lower trigger rod to drive the upper trigger rod and the lower trigger rod away from each other.

[0024] When the present invention is in use, after the feed hopper is connected to the upper end of the casing, the feed hopper can push the upper trigger rod to slide downward, and when the collecting bag is connected to the lower end of the casing, the trigger member can push the lower trigger rod to slide upward; when the upper trigger rod slides downward and after the lower trigger rod slides upward, the lower trigger rod can push the upper trigger rod to swing horizontally so that the lower end of the upper trigger rod triggers the control end of the trigger switch to turn on the trigger switch; that is, by adopting the above structure, only after the feed hopper is connected to the upper end of the casing and the collecting bag is assembled to the lower end of the casing, the trigger switch can be turned on, that is, the drive assembly can be energized and drive the crushing head to rotate, that is, when the feed hopper or the collecting bag is not assembled to the casing, it can avoid the drive assembly accidentally driving the crushing head to rotate, thereby eliminating safety hazards.

[0025] 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 leaf crusher with a safety protection function, comprising a support frame (1), a casing (2), a drive assembly (3), a crushing head (4), a feed hopper (5) and a collecting bag (6); the casing (2) is fixed to the support frame (1), the drive assembly (3) is fixed to the inner side of the casing (2), the crushing head (4) is located in the casing (2) above the drive assembly (3) and is drivingly connected to the driving end of the drive assembly (3), the feed hopper (5) is detachably connected to the upper end of the casing (2), and the collecting bag (6) is detachably connected to the lower end of the casing (2); characterized in that: The leaf shredder further comprises a trigger switch (7), a trigger unit and a trigger member (10); the trigger switch (7) is fixed inside the housing (2); the drive assembly (3) is connected in series with the trigger switch (7) and the power switch (8) and then electrically connected to the power line (9); the trigger unit is arranged on the inner side of the housing (2); the trigger member (10) is connected to the bag opening at the upper end of the collecting bag (6); the trigger unit has an upper trigger end and a lower trigger end; when the feed hopper (5) is connected to the upper end of the housing (2), the upper trigger end of the trigger unit is triggered; when the collecting bag (6) is connected to the lower end of the housing (2), the trigger member (10) is used to trigger the lower trigger end of the trigger unit; when the upper trigger end and the lower trigger end of the trigger unit are triggered simultaneously, the trigger unit is used to trigger the control end of the trigger switch (7) to turn on the trigger switch (7).

2. The leaf crusher with safety protection function according to claim 1, characterized in that: The trigger unit comprises an upper trigger rod (20), a lower trigger rod (30) and a spring (40); the upper trigger rod (20) and the lower trigger rod (30) are arranged on the inner side of the housing (2) at an interval, the upper trigger rod (20) and the lower trigger rod (30) are both vertically slidably connected to the housing (2), and the upper trigger rod (20) can swing horizontally relative to the housing (2); the upper end of the upper trigger rod (20) forms an upper trigger end of the trigger unit, and the lower end of the lower trigger rod (30) forms a lower trigger end of the trigger unit; the spring (40) is arranged between the upper trigger rod (20) and the lower trigger rod (30), and two ends of the spring (40) are respectively connected to the lower end of the upper trigger rod (20) and the lower end of the lower trigger rod (30). The upper ends of the trigger rod (20) and the lower trigger rod (30) are abutted against each other, and the spring (40) is used to apply an elastic force to the upper trigger rod (20) and the lower trigger rod (30) to drive the upper trigger rod (20) and the lower trigger rod (30) away from each other; when the feed hopper (5) is connected to the upper end of the casing (2), the feed hopper (5) is used to push the upper trigger rod (20) to slide downward, and when the collection bag (6) is connected to the lower end of the casing (2), the trigger member (10) is used to push the lower trigger rod (30) to slide upward; when the upper trigger rod (20) slides downward and after the lower trigger rod (30) slides upward, the lower trigger rod (30) is used to push the upper trigger rod (20) to swing horizontally so that the lower end of the upper trigger rod (20) triggers the control end of the trigger switch (7) to turn on the trigger switch (7).

3. The leaf crusher with safety protection function according to claim 2 is characterized in that: An annular groove (21) is provided at the upper end of the casing (2), and the upper end of the upper trigger rod (20) movably penetrates the bottom of the annular groove (21) and then extends into the annular groove (21); when the feed hopper (5) is connected to the upper end of the casing (2), the lower end of the feed hopper (5) is used to be inserted into the annular groove (21) and push the upper trigger rod (20) to slide downward.

4. The leaf crusher with safety protection function according to claim 2 is characterized in that: The trigger member (10) comprises a plug-in portion (101) and a hand-held portion (102); a slot (22) with an open outer end is provided on the housing (2); the slot (22) is arranged horizontally; the lower end of the lower trigger rod (30) extends into the slot (22); the outer end of the plug-in portion (101) is integrally connected to the inner side wall of the hand-held portion (102); the inner end of the plug-in portion (101) is used to be inserted into the slot (22); A first guide surface (103) is provided at the top of the inner end of the connecting portion (101), and a second guide surface (301) is provided on the outer side of the lower end of the lower trigger rod (30); when the plug-in portion (101) is inserted into the slot (22), the first guide surface (103) is used to cooperate with the second guide surface (301) for guidance so that the plug-in portion (101) pushes the lower trigger rod (30) to slide upward, and the hand-held portion (102) is connected to the bag opening at the upper end of the collection bag (6).

5. The leaf crusher with safety protection function according to claim 4 is characterized in that: An annular flange (23) is provided on the outer wall of the lower end of the casing (2); a strap is fixed to the bag opening of the collection bag (6); the bag opening of the collection bag (6) is sleeved on the outside of the casing (2) above the annular flange (23) and is fastened to the casing (2) via the strap; the handheld portion (102) of the trigger member (10) is fixed to the strap.

6. The leaf crusher with safety protection function according to claim 2, characterized in that: A first inclined surface (201) is arranged on the outer side of the lower end of the upper trigger rod (20), and a second inclined surface (302) is arranged on the inner side of the upper end of the lower trigger rod (30); when the upper trigger rod (20) slides downward and the lower trigger rod (30) slides upward, the first inclined surface (201) is used to cooperate with the second inclined surface (302) to guide so that the lower trigger rod (30) pushes the upper trigger rod (20) to swing horizontally, and the lower end of the upper trigger rod (20) triggers the control end of the trigger switch (7) to turn on the trigger switch (7).

7. The leaf crusher with safety protection function according to claim 2, characterized in that: The lower end of the upper trigger rod (20) is provided with a first concave cavity (202), and the upper end of the lower trigger rod (30) is provided with a second concave cavity (303); the upper end of the spring (40) is inserted into the first concave cavity (202) and abuts against the inner top of the first concave cavity (202), and the lower end of the spring (40) is inserted into the second concave cavity (303) and abuts against the inner bottom of the second concave cavity (303).

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