Leaf shredder with safety protection function

Abstract

This invention provides a leaf crusher with safety protection functions, including a support frame, a housing, a drive assembly, a crushing head, a feed hopper, and a collection bag. The housing is fixed to the support frame, the drive assembly is fixed inside the housing, the crushing head is connected to the drive end of the drive assembly, the feed hopper is detachably connected to the upper end of the housing, and the collection bag is detachably connected to the lower end of the housing. The leaf crusher also includes a trigger switch, a trigger unit, and a trigger element. The trigger switch is fixed inside the housing, and the drive assembly is connected to the power cord via series with the trigger switch and a power switch. The trigger unit is located inside the housing, and the trigger element is connected to the bag opening at the upper end of the collection bag. The trigger unit has an upper trigger end and a lower trigger end. When the upper and lower trigger ends of the trigger unit are triggered simultaneously, the trigger unit triggers the control end of the trigger switch to make the trigger switch conduct. This invention can prevent the accidental start of the leaf crusher and eliminate safety hazards.

Description

Technical Field

[0001] This invention relates to the field of leaf shredder technology, and more specifically, to a leaf shredder with safety protection functions. Background Technology

[0002] A leaf shredder is a device used to crush leaves. Currently, leaf shredders on the market mainly consist of a support frame, a housing, a drive assembly, a crushing head, a feed hopper, and a collection bag. The housing is fixed to the support frame, the drive assembly is fixed inside the housing, the crushing head is located in the housing above the drive assembly and is connected to the drive end of the drive assembly, the feed hopper is detachably connected to the upper end of the housing, and the collection bag is detachably connected to the lower end of the housing. However, in existing leaf shredders, even when the feed hopper and / or collection bag are not installed on the housing, the drive assembly can still drive the crushing head to rotate, which makes it easy for workers' hands to come into contact with the rotating crushing head, posing a significant safety hazard. Summary of the Invention

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

[0004] This invention provides a leaf crusher with safety protection function, including a support frame, a housing, a drive assembly, a crushing head, a feed hopper, and a collection bag. The housing is fixed to the support frame, the drive assembly is fixed inside the housing, the crushing head is located in the housing above the drive assembly and is connected to the drive end of the drive assembly, the feed hopper is detachably connected to the upper end of the housing, and the collection bag is detachably connected to the lower end of the housing. The leaf crusher also includes a trigger switch, a trigger unit, and a trigger element. The trigger switch is fixed inside the housing, and the drive assembly is connected to the power cord via series with the trigger switch and a power switch. The trigger unit is located inside the housing, and the trigger element is connected to the bag opening at the upper end of the collection bag. The trigger unit has an upper trigger end and a lower trigger end. When the feed hopper is connected to the upper end of the housing, the upper trigger end of the trigger unit is triggered. When the collection bag is connected to the lower end of the housing, the trigger element is used to trigger the lower trigger end of the trigger unit. When the upper and lower trigger ends of the trigger unit are triggered simultaneously, the trigger unit is used to trigger the control end of the trigger switch to make the trigger switch conduct.

[0005] By adopting the above structure, the triggering unit cannot trigger the control terminal of the trigger switch when the machine casing is not equipped with the feed hopper and / or collection bag, thus preventing the trigger switch from conducting. Furthermore, since the drive assembly is connected to the power cord via series with the trigger switch and the power switch, the drive assembly can be prevented from driving the crushing head to rotate when the machine casing is not equipped with the feed hopper and / or collection bag. This prevents the accidental start of the leaf crusher and avoids workers' hands from coming into contact with the rotating crushing head, eliminating safety hazards.

[0006] In one possible implementation, the triggering unit includes an upper trigger rod, a lower trigger rod, and a spring. The upper and lower trigger rods are arranged vertically and alternately on the inner side of the housing. Both the upper and lower trigger rods are vertically slidably connected to the housing, and the upper trigger rod can be horizontally tilted relative to the housing. The upper end of the upper trigger rod forms the upper trigger end of the triggering unit, and the lower end of the lower trigger rod forms the lower trigger end of the triggering unit. The spring is disposed between the upper and lower trigger rods, with its two ends abutting against the lower end of the upper trigger rod and the upper end of the lower trigger rod, respectively. The spring applies a spring force to the upper and lower trigger rods to drive them away from each other. When the feed hopper is connected to the upper end of the housing, the feed hopper pushes the upper trigger rod downward. When the collection bag is connected to the lower end of the housing, the triggering element pushes the lower trigger rod upward. When the upper trigger rod slides downward and the lower trigger rod slides upward, the lower trigger rod... The upper trigger rod is pushed to swing horizontally so that its lower end triggers the control terminal of the trigger switch, thus activating the trigger switch. With this structure, when the feed hopper is connected to the upper end of the housing, the feed hopper can push the upper trigger rod downwards. When the collection bag is connected to the lower end of the housing, the trigger can push the lower trigger rod upwards. When the upper trigger rod slides downwards and the lower trigger rod slides upwards, the lower trigger rod can push the upper trigger rod to swing horizontally so that its lower end triggers the control terminal of the trigger switch, thus activating the trigger switch. In other words, with this structure, the trigger switch can only be activated when the feed hopper is connected to the upper end of the housing and the collection bag is assembled onto the lower end of the housing. This allows the drive assembly to be energized and the crushing head to rotate. Furthermore, when the feed hopper or collection bag is not assembled onto the housing, the drive assembly can be prevented from accidentally rotating the crushing head, thus eliminating safety hazards.

[0007] In one possible implementation, the upper end of the housing is provided with an annular groove, and the upper end of the upper trigger rod extends through the bottom of the annular groove and into the annular groove. When the feed hopper is connected to the upper end of the housing, the lower end of the feed hopper is used to insert into the annular groove and push the upper trigger rod to slide downward. With the above structure, when the feed hopper is connected to the upper end of the housing, 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. Thus, when the feed hopper is not assembled onto the housing, the drive assembly can be prevented from accidentally rotating the crushing head, thereby eliminating safety hazards.

[0008] In one possible implementation, the trigger includes a plug-in portion and a handheld portion; the housing is provided with a slot with an open outer end, the slot is horizontally positioned, the lower end of the lower trigger rod extends into the slot, the outer end of the plug-in portion is integrally connected to the inner sidewall of the handheld portion, the inner end of the plug-in portion is used to insert 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 to guide the plug-in portion to push the lower trigger rod upward, and the handheld portion is connected to the collection bag. At the top of the bag opening; by adopting the above structure, when the plug is inserted into the slot, the first guide surface can cooperate with the second guide surface to guide the plug to push the lower trigger rod to slide upward, that is, the trigger 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 top of the collection bag, the plug can only be inserted into the slot and push the lower trigger rod to slide upward after the bag opening of the collection bag is connected to the lower end of the housing. Thus, when the collection bag is not assembled onto the housing, the drive component can be prevented from accidentally rotating the crushing head, thereby eliminating safety hazards.

[0009] In one possible implementation, an annular protrusion is provided on the outer wall of the lower end of the housing, and a strap is fixed to the opening of the collection bag. The opening of the collection bag is fitted onto the outside of the housing located above the annular protrusion and secured to the housing by the strap. The handle of the trigger is fixed to the strap. With this structure, when the opening of the collection bag is fitted onto the outside of the housing located above the annular protrusion and secured to the housing by the strap, the strap can be prevented from detaching from the housing from top to bottom under the action of the annular protrusion, thereby effectively preventing the opening of the collection bag from detaching from the housing, which improves the reliability of the collection bag after assembly with the housing.

[0010] In one possible implementation, 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 cooperates with the second inclined surface to guide the lower trigger rod to push the upper trigger rod to swing horizontally, and the lower end of the upper trigger rod triggers the control terminal of the trigger switch, thus turning on the trigger switch. With 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 to guide the lower trigger rod to push the upper trigger rod to swing horizontally, and the lower end of the upper trigger rod triggers the control terminal of the trigger switch, thus turning on the trigger switch. Therefore, the trigger switch can only be turned on when the feed hopper is connected to the upper end of the machine housing and the collection bag is assembled on the lower end of the machine housing, that is, the drive component can be energized and drive the crushing head to rotate. In other words, when the feed hopper or collection bag is not assembled on the machine housing, the drive component can be prevented from accidentally driving the crushing head to rotate, thereby eliminating safety hazards.

[0011] In one possible implementation, the lower end of the upper trigger rod is provided with a first cavity, and the upper end of the lower trigger rod is provided with a second cavity. The upper end of the spring is inserted into the first cavity and abuts against the inner top of the first cavity, and the lower end of the spring is inserted into the second cavity and abuts against the inner bottom of the second cavity. With this structure, the upper end of the spring can be inserted into the first cavity and abuts against the inner top of the first cavity, and the lower end of the spring can be inserted into the second cavity and abuts against the inner bottom of the second cavity. This can limit the spring and prevent it from disengaging from the upper and lower trigger rods. In other words, the spring can reliably apply a spring force to the upper and lower trigger rods to drive them away from each other. Attached Figure Description

[0012] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 is a cross-sectional view of the present invention after removing the support frame and the collection bag;

[0014] Figure 3 is an enlarged structural diagram of point A in Figure 2. Detailed Implementation

[0015] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0016] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0017] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0018] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Referring to Figures 1-3, this application discloses a leaf crusher with safety protection function, including a support frame 1, a housing 2, a drive assembly 3, a crushing head 4, a feed hopper 5, and a collection bag 6. The housing 2 is fixed on the support frame 1, the drive assembly 3 is fixed inside the housing 2, the crushing head 4 is located in the housing 2 above the drive assembly 3 and is connected to the drive end of the drive assembly 3, the feed hopper 5 is detachably connected to the upper end of the housing 2, and the collection bag 6 is detachably connected to the lower end of the housing 2. The leaf crusher also includes a trigger switch 7, a trigger unit, and a trigger element 10; the trigger switch 7 is fixed on the housing. 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 located inside the housing 2, and the trigger element 10 is connected to the bag opening at the upper end of the collection 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 collection bag 6 is connected to the lower end of the housing 2, the trigger element 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 make the trigger switch 7 conduct.

[0020] The triggering 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 vertically and alternately on the inner side of the housing 2. Both 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 tilted relative to the housing 2. The upper end of the upper trigger rod 20 forms the upper trigger end of the triggering unit, and the lower end of the lower trigger rod 30 forms the lower trigger end of the triggering unit. The spring 40 is disposed between the upper trigger rod 20 and the lower trigger rod 30. The two ends of the spring 40 abut against the lower end of the upper trigger rod 20 and the upper end of the lower trigger rod 30, respectively. The spring 40 is used to apply a spring force to the upper trigger rod 20 and the lower trigger rod 30 to drive them 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. When the collection bag 6 is connected to the lower end of the housing 2, the trigger 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, it pushes the upper trigger rod 20 to swing horizontally, causing the lower end of the upper trigger rod 20 to trigger the control terminal of the trigger switch 7, thus turning on the trigger switch 7. With the above structure, when the feed hopper is connected to the upper end of the housing, the feed hopper can push the upper trigger rod to slide downward. When the collection bag is connected to the lower end of the housing, the trigger can 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 can push the upper trigger rod to swing horizontally, causing the lower end of the upper trigger rod to trigger the control terminal of the trigger switch, thus turning on the trigger switch. That is, with the above structure, the trigger switch can only be turned on when the feed hopper is connected to the upper end of the housing and the collection bag is assembled on the lower end of the housing. This allows the drive component to be energized and drive the crushing head to rotate. In other words, when the feed hopper or collection bag is not assembled on the housing, the drive component can be prevented from accidentally rotating the crushing head, thus eliminating safety hazards.

[0021] The upper end of the housing 2 is provided with an annular groove 21. The upper end of the upper trigger rod 20 extends through the bottom of the annular groove 21 and into the annular groove 21. When the feed hopper 5 is connected to the upper end of the housing 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. With the above structure, when the feed hopper is connected to the upper end of the housing, 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. Thus, when the feed hopper is not assembled onto the housing, the drive component can be prevented from accidentally rotating the crushing head, thereby eliminating safety hazards.

[0022] The trigger 10 includes a plug-in portion 101 and a handheld portion 102. A slot 22 with an open outer end is provided on the housing 2. The slot 22 is horizontally positioned, and 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 wall of the handheld portion 102. The inner end of the plug-in portion 101 is used to insert into the slot 22. A first guide surface 103 is provided at the top of the inner end of the plug-in 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 cooperates with the second guide surface 301 to guide the plug-in portion 101 downwards. The trigger rod 30 slides upward, and the handle 102 is connected to the bag opening at the upper end of the collection bag 6. With the above structure, when the plug is inserted into the slot, the first guide surface can cooperate with the second guide surface to guide the plug to push the lower trigger rod upward, that is, the trigger can trigger the lower trigger end of the trigger unit. In addition, since the handle is connected to the bag opening at the upper end of the collection bag, the plug can only be inserted into the slot and push the lower trigger rod upward after the bag opening of the collection bag is connected to the lower end of the housing. Thus, when the collection bag is not assembled onto the housing, the drive component can be prevented from accidentally rotating the crushing head, thereby eliminating safety hazards.

[0023] An annular protrusion 23 is provided on the outer wall of the lower end of the housing 2. A strap is fixed to the opening of the collection bag 6. The opening of the collection bag 6 is fitted onto the outside of the housing 2 located above the annular protrusion 23 and is fastened to the housing 2 by the strap. The handle 102 of the trigger 10 is fixed to the strap. With this structure, when the opening of the collection bag is fitted onto the outside of the housing located above the annular protrusion and is fastened to the housing by the strap, the strap can be prevented from detaching from the housing from top to bottom under the action of the annular protrusion. This can effectively prevent the opening of the collection bag from detaching from the housing, thereby improving the reliability of the collection bag after assembly with the housing.

[0024] 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 cooperates with the second inclined surface 302 to guide the lower trigger rod 30 to push the upper trigger rod 20 to swing horizontally, so that the lower end of the upper trigger rod 20 triggers the control terminal of the trigger switch 7, thereby turning on the trigger switch 7. With 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 to guide the lower trigger rod to push the upper trigger rod to swing horizontally, and the lower end of the upper trigger rod triggers the control terminal of the trigger switch, thus turning on the trigger switch. Therefore, the trigger switch can only be turned on when the feed hopper is connected to the upper end of the machine housing and the collection bag is assembled on the lower end of the machine housing. This allows the drive component to be energized and drive the crushing head to rotate. In other words, when the feed hopper or collection bag is not assembled on the machine housing, the drive component can be prevented from accidentally driving the crushing head to rotate, thereby eliminating safety hazards.

[0025] The lower end of the upper trigger rod 20 is provided with a first recess 202, and the upper end of the lower trigger rod 30 is provided with a second recess 303. The upper end of the spring 40 is inserted into the first recess 202 and abuts against the inner top of the first recess 202, and the lower end of the spring 40 is inserted into the second recess 303 and abuts against the inner bottom of the second recess 303. With this structure, the upper end of the spring can be inserted into the first recess and abuts against the inner top of the first recess, and the lower end of the spring can be inserted into the second recess and abuts against the inner bottom of the second recess. This can limit the spring and prevent it from disengaging from the upper and lower trigger rods. In other words, the spring can reliably apply a spring force to the upper and lower trigger rods to drive them away from each other.

[0026] In use, when the feeding hopper is connected to the upper end of the housing, the feeding hopper can push the upper trigger rod to slide downwards. When the collection bag is connected to the lower end of the housing, the trigger can push the lower trigger rod to slide upwards. When the upper trigger rod slides downwards and the lower trigger rod slides upwards, 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 terminal of the trigger switch, thus turning on the trigger switch. That is, by adopting the above structure, the trigger switch can only be turned on after the feeding hopper is connected to the upper end of the housing and the collection bag is assembled on the lower end of the housing. This allows the drive component to be energized and drive the crushing head to rotate. In other words, when the feeding hopper or the collection bag is not assembled on the housing, the drive component can be prevented from accidentally driving the crushing head to rotate, thereby eliminating safety hazards.

[0027] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A leaf crusher with safety protection function, comprising a support frame (1), a housing (2), a drive assembly (3), a crushing head (4), a feed hopper (5), and a collection bag (6); the housing (2) is fixed on the support frame (1), the drive assembly (3) is fixed inside the housing (2), the crushing head (4) is located in the housing (2) above the drive assembly (3) and is connected to the drive end of the drive assembly (3); the feed hopper (5) is detachably connected to the upper end of the housing (2), and the collection bag (6) is detachably connected to the lower end of the housing (2); characterized in that: The leaf crusher also includes a trigger switch (7), a trigger unit, and a trigger element (10); the trigger switch (7) is fixed inside the housing (2), and 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 located inside the housing (2), and the trigger element (10) is connected to the bag opening at the upper end of the collection 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, and when the collection bag... (6) After being connected to the lower end of the housing (2), the trigger element (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 make the trigger switch (7) conduct; 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 vertically and intermittently on the inner side of the housing (2), and both the upper trigger rod (20) and the lower trigger rod (30) are vertically aligned with the housing (2). The upper trigger rod (20) is slidably connected and can be horizontally tilted relative to the housing (2). The upper end of the upper trigger rod (20) forms the upper trigger end of the trigger unit, and the lower end of the lower trigger rod (30) forms the lower trigger end of the trigger unit. The spring (40) is disposed between the upper trigger rod (20) and the lower trigger rod (30). The two ends of the spring (40) abut against the lower end of the upper trigger rod (20) and the upper end of the lower trigger rod (30), respectively. The spring (40) is used to drive the upper trigger rod (20) and the lower trigger rod (30). (30) The elastic force of moving 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; when the collection bag (6) is connected to the lower end of the housing (2), the trigger (10) is used to push the lower trigger rod (30) to slide upward; when the upper trigger rod (20) slides downward and 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) so that the trigger switch (7) is turned on.

2. The leaf crusher with safety protection function according to claim 1, characterized in that: The upper end of the housing (2) is provided with an annular groove (21). The upper end of the upper trigger rod (20) extends through the bottom of the annular groove (21) and into the annular groove (21). When the feed hopper (5) is connected to the upper end of the housing (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.

3. The leaf crusher with safety protection function according to claim 1, characterized in that: The trigger (10) includes a plug-in part (101) and a handheld part (102); the housing (2) is provided with a slot (22) with an outer opening, 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 part (101) is connected to the inner sidewall of the handheld part (102) as a whole, and the inner end of the plug-in part (101) is used to insert into the slot (22). The top of the inner end of the connector (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 connector (101) is inserted into the slot (22), the first guide surface (103) is used to cooperate with the second guide surface (301) to guide the connector (101) to push the lower trigger rod (30) to slide upward. The handheld part (102) is connected to the bag opening at the upper end of the collection bag (6).

4. The leaf crusher with safety protection function according to claim 3, characterized in that: An annular protrusion (23) is provided on the outer wall of the lower end of the housing (2). A strap is fixed at the opening of the collection bag (6). The opening of the collection bag (6) is sleeved on the outside of the housing (2) located above the annular protrusion (23) and fastened to the housing (2) by the strap. The hand-held part (102) of the trigger (10) is fixed to the strap.

5. The leaf crusher with safety protection function according to claim 1, characterized in that: The upper trigger rod (20) has a first inclined surface (201) on the outer side of its lower end, and the lower trigger rod (30) has a second inclined surface (302) on the inner side of its upper end. 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 swing horizontally, and the lower end of the upper trigger rod (20) triggers the control end of the trigger switch (7) to turn on.

6. The leaf crusher with safety protection function according to claim 1, characterized in that: The lower end of the upper trigger rod (20) is provided with a first cavity (202), the upper end of the lower trigger rod (30) is provided with a second cavity (303), the upper end of the spring (40) is inserted into the first cavity (202) and abuts against the inner top of the first cavity (202), and the lower end of the spring (40) is inserted into the second cavity (303) and abuts against the inner bottom of the second cavity (303).

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