A range-adjustable leaf crushing nozzle for sanitation vehicles

Abstract

The present invention discloses a range-adjustable leaf crushing nozzle for use on sanitation vehicles, comprising a dust suction pipe, an L-shaped pipe, a corrugated hose, and a dust suction nozzle. A rotating mechanism for driving the dust suction nozzle to turn forward and backward is provided at the left bottom of the L-shaped pipe, a steering mechanism is provided at the connection between the dust suction pipe and the L-shaped pipe, and a linkage mechanism for driving the dust suction nozzle to turn left and right is provided on the steering mechanism. The present invention relates to the technical field of crushing nozzles. The range-adjustable leaf crushing nozzle for use on sanitation vehicles can drive a sleeve rod on a reciprocating screw rod to perform back-and-forth motion through a steering mechanism, thereby driving the dust suction nozzle to move left and right through the sleeve rod and the mounting seat in cooperation with the rotating mechanism, thereby adjusting the orientation angle of the dust suction nozzle. The linkage mechanism cooperates with the steering mechanism to achieve all-round angle adjustment of the dust suction nozzle, thereby meeting the dust suction work at any angle.

Description

Technical Field

[0001] The invention relates to the technical field of crushing suction nozzles, in particular to a range-adjustable fallen leaf crushing suction nozzle used on sanitation vehicles. Background Art

[0002] As the country attaches more importance to environmental protection and urban greening, people have an increasingly strong demand for the treatment of fallen leaf pollution. At present, the cleaning and treatment of leaves on public roads such as roads and garden roads is cumbersome, time-consuming, labor-intensive and inefficient.

[0003] In the process of collecting fallen leaves on existing sanitation vehicles, the dust suction nozzle is mainly used as the collection component of fallen leaves. When the induced draft turbine inside the sanitation vehicle is running, the negative pressure suction it generates will suck the external fallen leaves into the dust suction nozzle for centralized processing of the fallen leaves. However, the existing dust suction nozzle can usually only suck in the fallen leaves at its own location, and cannot meet the absorption work of different work stations, and has certain usage limitations. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a range-adjustable fallen leaf crushing suction nozzle for use on sanitation vehicles, which solves the technical problems mentioned in the background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a range-adjustable leaf crushing suction nozzle used on a sanitation vehicle, comprising a dust suction pipe, an L-shaped pipe, a corrugated hose and a dust suction nozzle, the dust suction pipe is rotatably connected to the L-shaped pipe, the L-shaped pipe and the dust suction nozzle are connected through a corrugated hose, a rotating mechanism for driving the dust suction nozzle to turn forward and backward is provided at the left bottom of the L-shaped pipe, a steering mechanism is provided at the connection between the dust suction pipe and the L-shaped pipe, and a linkage mechanism for driving the dust suction nozzle to turn left and right is provided on the steering mechanism.

[0006] Preferably, a fixing ring is fixedly connected to the outer wall of the L-shaped tube on one side close to the corrugated hose, and the rotating mechanism is rotatably installed on the bottom of the fixing ring.

[0007] Preferably, the steering mechanism includes a forward and reverse motor fixedly mounted on the dust suction pipe and a circular ring sleeved on the outer wall of the dust suction pipe, the output end of the forward and reverse motor is fixedly connected to a first bevel gear, the top of the first bevel gear is engaged with a second bevel gear, the second bevel gear is fixedly mounted on the outer wall of the L-shaped tube, the left side of the circular ring is fixedly connected to a connecting plate, and the other end of the connecting plate is fixedly connected to the bottom of the fixed ring.

[0008] Preferably, the linkage mechanism includes a vertical plate installed on the top right side of the connecting plate, the surface of the vertical plate is rotatably connected to the rotating shaft, the outer wall of the rotating shaft is fixedly connected to the third bevel gear and the first pulley respectively, the third bevel gear and the second bevel gear are meshed with each other, the first pulley is connected to the second pulley through a belt transmission, the surface of the second pulley is fixedly connected to the rotating rod, the two sides of the rotating rod are rotatably connected to the fixed plate through bearings, and the fixed plate is fixedly installed on the bottom of the connecting plate, the left end of the rotating rod is fixedly connected to the reciprocating screw, the outer wall of the reciprocating screw is threadedly connected to the sleeve rod, and the other end of the sleeve rod is movably connected to the mounting seat.

[0009] Preferably, the rotating mechanism includes a mounting plate rotatably mounted on the bottom of the fixing ring, the left surface of the mounting plate is rotatably connected to a fixing seat, the surface of the fixing seat is fixedly connected to a U-shaped frame, the inner end of the U-shaped frame is provided with a servo motor, the output end of the servo motor is fixedly connected to a worm, an adjustment component is provided on one side of the worm, an arc frame is fixedly mounted on the left side of the mounting plate, and an arc groove is opened on the surface, the bottom of the worm is located in the arc groove and is slidably connected to the arc frame, a positioning rod is fixedly connected to the left side of the bottom of the worm, the other end of the positioning rod passes through the arc frame and is fixedly connected to the outer wall of the dust nozzle.

[0010] Preferably, the adjusting assembly includes a connecting rod rotatably connected to one end of the fixing seat, the other end of the connecting rod is rotatably connected to a linkage plate, the other end of the linkage plate is rotatably connected to a support frame through a rotating shaft, and a first gear is fixedly connected to the U-shaped frame and located on the outer wall of the rotating shaft, the support frame is fixedly connected to a connecting column on the side close to the mounting plate, the connecting column is rotatably connected to a worm gear on the side away from the mounting plate, and one side of the worm gear is meshed with the worm, and a fixing rod is provided on the other side of the worm gear, and the other end of the fixing rod is movably mounted on one end of the outer wall of the worm.

[0011] Preferably, the inner cavity of the connecting column is rotatably connected to a collar fixedly connected to the worm gear, and the inner wall of the collar is fixedly connected to six clamping columns, and a clamping slot is provided between every two clamping columns, and the connecting assembly is located on one side of the clamping slot.

[0012] Preferably, the connecting component includes an arc groove opened on the surface of the mounting plate, and a moving rod is slidably connected in the arc groove, and the two ends of the moving rod are respectively fixedly connected with a second gear and a knob, the second gear and the first gear are adapted to each other, and a spring is provided in the inner cavity of the end of the moving rod, and steel balls are fixedly connected at both ends of the spring, and the size of the steel balls is adapted to the slot.

[0013] Beneficial effects

[0014] The present invention provides a range-adjustable leaf crushing nozzle for use on sanitation vehicles. Compared with the prior art, it has the following advantages:

[0015] (1) The leaf crushing suction nozzle with adjustable range used on the sanitation vehicle is connected to the connecting component and the adjusting component. When the worm rotates, it can drive the worm wheel to rotate. The worm wheel drives the moving rod and the second gear to rotate through the ring, steel ball and spring. The second gear drives the first gear to rotate. The first gear drives the linkage plate to rotate through the rotating shaft. The linkage plate drives the connecting rod to cooperate with the fixed seat located on the surface of the mounting plate to make reciprocating motion, thereby driving the U-shaped frame, the worm and the positioning rod to make reciprocating motion back and forth, thereby driving the dust collection nozzle located at one end of the L-shaped tube and rotating with this as the center of the circle, thereby changing the inclination angle of the dust collection nozzle to meet the different needs of dust collection work.

[0016] (2) The leaf crushing nozzle with adjustable range used on the sanitation vehicle drives the first bevel gear to rotate by turning on the forward and reverse motor. When the first bevel gear rotates, the meshed second bevel gear can drive the L-shaped tube located at the end of the dust suction tube to rotate with it as the center of the circle, thereby changing the circumferential position of the dust suction nozzle. When the second bevel gear rotates, it can drive the third bevel gear, the rotating shaft, and the first pulley located on the vertical plate to rotate. The first pulley drives the second pulley and the rotating rod located on the fixed plate to rotate through the belt. The rotating rod drives the reciprocating screw to rotate. When the reciprocating screw rotates, it can drive the sleeve rod located on the reciprocating screw rod to make a back and forth reciprocating motion. Therefore, the sleeve rod cooperates with the mounting seat to cooperate with the rotating mechanism to drive the dust suction nozzle to move to the left and right sides, thereby adjusting the direction angle of the dust suction nozzle. The linkage mechanism cooperates with the steering mechanism to achieve full-range angle adjustment of the dust suction nozzle, thereby meeting the dust suction work at any angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a side structural schematic diagram of the present invention;

[0019] Figure 3 Schematic diagram of the structure of the steering mechanism of the present invention;

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 Schematic diagram of the rotating mechanism structure of the present invention;

[0022] Figure 6 Schematic diagram of the structure of the regulating component in the present invention;

[0023] Figure 7 Schematic diagram of the split structure of the connection component and part of the adjustment component in the present invention;

[0024] Figure 8It is a partial cross-sectional view of the connection component in the present invention.

[0025] In the figure: 1. Dust collection pipe; 2. L-shaped pipe; 4. Corrugated hose; 5. Dust collection nozzle; 6. Rotating mechanism; 7. Steering mechanism; 8. Linkage mechanism; 201. Fixing ring; 601. Mounting plate; 602. Fixing seat; 603. U-shaped frame; 604. Servo motor; 605. Worm; 606. Adjustment assembly; 6061. Connecting rod; 6062. Linkage plate; 6063. Support frame; 6064. First gear; 6065. Connecting column; 6066. Worm gear; 6067. Fixing rod; 6068. Clamping column; 6069. Clamping slot; 607. Connecting assembly; 6071, moving rod; 6072, second gear; 6073, knob; 6074, spring; 6075, steel ball; 608, arc frame; 609, positioning rod; 701, forward and reverse motor; 702, first bevel gear; 703, second bevel gear; 704, ring; 705, connecting plate; 801, vertical plate; 802, rotating shaft; 803, third bevel gear; 804, first pulley; 805, fixed plate; 806, second pulley; 807, belt; 808, rotating rod; 809, reciprocating screw; 810, sleeve rod; 811, mounting seat. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figures 1-8 The present invention provides a technical solution: a leaf crushing suction nozzle with adjustable range for sanitation vehicles, comprising a dust suction pipe 1, an L-shaped pipe 2, a corrugated hose 4 and a dust suction nozzle 5, the dust suction pipe 1 is rotatably connected to the L-shaped pipe 2, the L-shaped pipe 2 and the dust suction nozzle 5 are connected through the corrugated hose 4, a rotating mechanism 6 for driving the dust suction nozzle 5 to turn forward and backward is provided at the bottom left side of the L-shaped pipe 2, a steering mechanism 7 is provided at the connection between the dust suction pipe 1 and the L-shaped pipe 2, and a linkage mechanism 8 for driving the dust suction nozzle 5 to turn left and right is provided on the steering mechanism 7.

[0028] like Figure 1 As shown, a fixing ring 201 is fixedly connected to the outer wall of the L-shaped tube 2 close to the corrugated hose 4, and a rotating mechanism 6 is rotatably installed at the bottom of the fixing ring 201. In this embodiment, the rotating mechanism 6 is arranged in conjunction with the corrugated hose 4 to drive the dust nozzle 5 located at one end of the L-shaped tube 2 and rotate with it as the center of the circle, thereby changing the inclination angle of the dust nozzle 5 to meet the different needs of dust collection.

[0029] like Figure 3 As shown, the steering mechanism 7 includes a forward and reverse motor 701 fixedly mounted on the dust suction pipe 1 and a circular ring 704 sleeved on the outer wall of the dust suction pipe 1. The output end of the forward and reverse motor 701 is fixedly connected to the first bevel gear 702, and the top of the first bevel gear 702 is meshed with the second bevel gear 703. The second bevel gear 703 is fixedly mounted on the outer wall of the L-shaped tube 2. The left side of the circular ring 704 is fixedly connected to a connecting plate 705, and the other end of the connecting plate 705 is fixedly connected to the bottom of the fixed ring 201. In this embodiment, the forward and reverse motor 701 is turned on to drive the first bevel gear 702 to rotate. When the first bevel gear 702 rotates, the engaged second bevel gear 703 can drive the L-shaped tube 2 located at the end of the dust suction pipe 1 to rotate with this as the center of the circle, thereby changing the circumferential position of the dust suction nozzle 5.

[0030] like Figure 3 、 Figure 4 As shown, the linkage mechanism 8 includes a vertical plate 801 installed on the top right side of the connecting plate 705, and the surface of the vertical plate 801 is rotatably connected to the rotating shaft 802, and the outer wall of the rotating shaft 802 is fixedly connected to the third bevel gear 803 and the first pulley 804, and the third bevel gear 803 and the second bevel gear 703 are meshed with each other. The first pulley 804 is connected to the second pulley 806 through a belt 807, and the surface of the second pulley 806 is fixedly connected to a rotating rod 808. The two sides of the rotating rod 808 are rotatably connected to the fixed plate 805 through bearings, and the fixed plate 805 is fixedly installed at the bottom of the connecting plate 705, and the left end of the rotating rod 808 is fixedly connected to a reciprocating screw rod 809, and the outer wall of the reciprocating screw rod 809 is threadedly connected to a sleeve rod 810, and the other end of the sleeve rod 810 is movably connected to a mounting seat 811, and the mounting seat 811 is fixedly installed on the mounting plate 601 , and the mounting seat 811 is vertically slidably connected to the sleeve rod 810. In this embodiment, when the second bevel gear 703 rotates, it can drive the third bevel gear 803, the rotating shaft 802, and the first pulley 804 located on the vertical plate 801 to rotate. The first pulley 804 drives the second pulley 806 and the rotating rod 808 located on the fixed plate 805 to rotate through the belt 807, and the rotating rod 808 drives the reciprocating screw rod 809 to rotate. When the reciprocating screw rod 809 rotates, it can drive the sleeve rod 810 located on the reciprocating screw rod 809 to perform reciprocating motion back and forth, so that the sleeve rod 810 cooperates with the mounting seat 811 to cooperate with the rotating mechanism 6 to drive the dust suction nozzle 5 to move left and right, thereby adjusting the direction angle of the dust suction nozzle 5, and the linkage mechanism 8 cooperates with the steering mechanism 7 to realize all-round angle adjustment of the dust suction nozzle 5, thereby meeting the dust suction work at any angle.

[0031] like Figure 5 、 Figure 6 、 Figure 7 、 Figure 8As shown, the rotating mechanism 6 includes a mounting plate 601 rotatably mounted on the bottom of the fixing ring 201, the left surface of the mounting plate 601 is rotatably connected to a fixing seat 602, the surface of the fixing seat 602 is fixedly connected to a U-shaped frame 603, the inner end of the U-shaped frame 603 is provided with a servo motor 604, the output end of the servo motor 604 is fixedly connected to a worm 605, one side of the worm 605 is provided with an adjustment component 606, the left side of the mounting plate 601 is fixedly mounted with an arc frame 608, and the surface is provided with an arc groove, the bottom of the worm 605 is located in the arc groove and is slidably connected to the arc frame 608, the bottom left side of the worm 605 A positioning rod 609 is fixedly connected, and the other end of the positioning rod 609 passes through the arc frame 608 and is fixedly connected to the outer wall of the dust nozzle 5. In this embodiment, after the connecting component 607 is connected to the adjusting component 606, the servo motor 604 is turned on to drive the worm 605 to rotate. The worm 605 can cooperate with the action of the adjusting component 606 to drive the positioning rod 609 to move back and forth on the arc frame 608, thereby driving the dust nozzle 5 located at one end of the L-shaped tube 2 and rotating around it as the center of the circle through the positioning rod 609, thereby changing the inclination angle of the dust nozzle 5 to meet the different needs of dust collection.

[0032] like Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 As shown, the inner cavity of the connecting column 6065 is rotatably connected to a ring fixedly connected to the worm gear 6066, and six clamping columns 6068 are fixedly connected to the inner wall of the ring, and a clamping groove 6069 is provided between every two clamping columns 6068, and the connecting component 607 is located on one side of the clamping groove 6069. In this embodiment, the ring provided on the connecting column 6065 facilitates the rotational connection with the connecting component 607.

[0033] like Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 As shown, the connecting component 607 includes an arc groove opened on the surface of the mounting plate 601, and a moving rod 6071 is slidably connected in the arc groove, and the two ends of the moving rod 6071 are respectively fixedly connected with the second gear 6072 and the knob 6073, and the second gear 6072 and the first gear 6064 are adapted to each other. A spring 6074 is provided in the inner cavity of the end of the moving rod 6071, and the two ends of the spring 6074 are fixedly connected with steel balls 6075, and the size of the steel balls 6075 is adapted to the slot 6069. In this embodiment, the moving rod 6071 is pressed by the knob 6073, so that the two steel balls 6075 are engaged in the slot 6069, and drive the second gear 6072 and the first gear 6064 to engage with each other for transmission.

[0034] like Figure 5 、 Figure 6、 Figure 7 、 Figure 8 As shown, the adjustment component 606 includes a connecting rod 6061 rotatably connected to one end of the fixed base 602, the other end of the connecting rod 6061 is rotatably connected to a linkage plate 6062, the other end of the linkage plate 6062 is rotatably connected to a support frame 6063 through a rotating shaft, and a first gear 6064 is fixedly connected to the U-shaped frame 603 and located on the outer wall of the rotating shaft, the support frame 6063 is fixedly connected to a connecting column 6065 on the side close to the mounting plate 601, and the connecting column 6065 is rotatably connected to a worm gear 6066 on the side away from the mounting plate 601, and one side of the worm gear 6066 is meshed with the worm 605, and a fixing rod 6067 is provided on the other side of the worm gear 6066, and the other end of the fixing rod 6067 is movably mounted on one end of the outer wall of the worm 605. In this embodiment, the connecting component 607 is fixed to the outer wall of the worm 605. After being connected with the adjustment component 606, when the worm 605 rotates, it can drive the worm wheel 6066 to rotate. The worm wheel 6066 drives the moving rod 6071 and the second gear 6072 to rotate through the ring, steel ball 6075, and spring 6074. The second gear 6072 drives the first gear 6064 to rotate. The first gear 6064 drives the linkage plate 6062 to rotate through the rotating shaft. The linkage plate 6062 drives the connecting rod 6061 to cooperate with the fixed seat 602 to perform reciprocating motion on the surface of the mounting plate 601, thereby driving the U-shaped frame 603, the worm 605, and the positioning rod 609 to perform reciprocating motion back and forth, thereby driving the dust nozzle 5 located at one end of the L-shaped tube 2 and rotating with this as the center of the circle, thereby changing the inclination angle of the dust nozzle 5 to meet the different requirements of dust collection.

[0035] In this embodiment, the circuits and electronic components involved in the present invention are all existing technologies, which can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to internal structures and methods. It should be noted that the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. Machinery, parts and equipment all adopt conventional models in the existing technology, and the inventor will not elaborate on them here.

[0036] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A leaf crushing nozzle with adjustable range for use on a sanitation vehicle, comprising a suction pipe (1), an L-shaped pipe (2), a corrugated hose (4) and a suction nozzle (5), wherein the suction pipe (1) is rotatably connected to the L-shaped pipe (2), and the L-shaped pipe (2) is connected to the suction nozzle (5) via the corrugated hose (4), characterized in that: A rotating mechanism (6) for driving the dust suction nozzle (5) to turn forward and backward is provided at the bottom of the left side of the L-shaped tube (2); a steering mechanism (7) is provided at the connection between the dust suction tube (1) and the L-shaped tube (2); and a linkage mechanism (8) for driving the dust suction nozzle (5) to turn left and right is provided on the steering mechanism (7); The steering mechanism (7) comprises a forward and reverse motor (701) fixedly mounted on the dust suction pipe (1) and a circular ring (704) sleeved on the outer wall of the dust suction pipe (1); the output end of the forward and reverse motor (701) is fixedly connected to a first bevel gear (702); the top of the first bevel gear (702) is meshed with a second bevel gear (703); the second bevel gear (703) is fixedly mounted on the outer wall of the L-shaped pipe (2); the left side of the circular ring (704) is fixedly connected to a connecting plate (705); the other end of the connecting plate (705) is fixedly connected to the bottom of the fixing ring (201); The linkage mechanism (8) includes a vertical plate (801) mounted on the top right side of the connecting plate (705), the surface of the vertical plate (801) is rotatably connected to a rotating shaft (802), the outer wall of the rotating shaft (802) is fixedly connected to a third bevel gear (803) and a first pulley (804), the third bevel gear (803) and the second bevel gear (703) are meshed with each other, and the first pulley (804) is connected to the second pulley (806) through a belt (807). ), the surface of the second pulley (806) is fixedly connected to a rotating rod (808), both sides of the rotating rod (808) are rotatably connected to fixed plates (805) through bearings, and the fixed plates (805) are fixedly installed on the bottom of the connecting plate (705), the left end of the rotating rod (808) is fixedly connected to a reciprocating screw rod (809), the outer wall of the reciprocating screw rod (809) is threadedly connected to a sleeve rod (810), and the other end of the sleeve rod (810) is movably connected to a mounting seat (811).

2. The range-adjustable leaf crushing nozzle for sanitation vehicles according to claim 1, characterized in that: A fixing ring (201) is fixedly connected to the outer wall of the L-shaped tube (2) on one side close to the corrugated hose (4), and the rotating mechanism (6) is rotatably mounted on the bottom of the fixing ring (201).

3. The range-adjustable leaf crushing nozzle for sanitation vehicles according to claim 2, characterized in that: The rotating mechanism (6) comprises a mounting plate (601) rotatably mounted on the bottom of the fixing ring (201); a fixed seat (602) is rotatably connected to the left surface of the mounting plate (601); a U-shaped frame (603) is fixedly connected to the surface of the fixed seat (602); a servo motor (604) is provided at the inner end of the U-shaped frame (603); a worm (605) is fixedly connected to the output end of the servo motor (604); an adjustment assembly (606) is provided on one side of the worm (605); an arc frame (608) is fixedly mounted on the left side of the mounting plate (601); and an arc groove is provided on the surface; the bottom of the worm (605) is located in the arc groove and is slidably connected to the arc frame (608); a positioning rod (609) is fixedly connected to the left side of the bottom of the worm (605); the other end of the positioning rod (609) passes through the arc frame (608) and is fixedly connected to the outer wall of the dust collection nozzle (5).

4. The range-adjustable leaf crushing nozzle for sanitation vehicles according to claim 3, characterized in that: The adjustment assembly (606) includes a connecting rod (6061) rotatably connected to one end of the fixing seat (602); the other end of the connecting rod (6061) is rotatably connected to a linkage plate (6062); the other end of the linkage plate (6062) is rotatably connected to a support frame (6063) via a rotating shaft; a first gear (6064) is fixedly connected to the U-shaped frame (603) and located on the outer wall of the rotating shaft; a connecting column (6065) is fixedly connected to the side of the support frame (6063) close to the mounting plate (601); a worm gear (6066) is rotatably connected to the side of the connecting column (6065) away from the mounting plate (601); one side of the worm gear (6066) is meshed with the worm (605); a fixing rod (6067) is provided on the other side of the worm gear (6066); and the other end of the fixing rod (6067) is movably mounted on one end of the outer wall of the worm (605).

5. The range-adjustable leaf crushing nozzle for sanitation vehicles according to claim 4, characterized in that: The inner cavity of the connecting column (6065) is rotatably connected to a collar fixedly connected to the worm gear (6066), and the inner wall of the collar is fixedly connected to six clamping columns (6068), and a clamping groove (6069) is provided between every two clamping columns (6068), and the connecting assembly (607) is located on one side of the clamping groove (6069).

6. The range-adjustable leaf crushing nozzle for sanitation vehicles according to claim 5, characterized in that: The connecting assembly (607) includes an arc groove opened on the surface of the mounting plate (601), and a moving rod (6071) is slidably connected in the arc groove, and the two ends of the moving rod (6071) are fixedly connected to a second gear (6072) and a knob (6073), respectively. The second gear (6072) and the first gear (6064) are adapted to each other. A spring (6074) is provided in the inner cavity of the end of the moving rod (6071), and steel balls (6075) are fixedly connected to the two ends of the spring (6074), and the size of the steel balls (6075) is adapted to the slot (6069).

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