Snow throwing machine

Abstract

The utility model discloses a snow throwing machine which solves the problem that the guide direction of a snow guide plate in an existing snow throwing machine can be changed due to the fact that the snow guide plate bears too large force. The snow throwing machine comprises a machine shell, a stirring wheel and a snow guiding plate assembly, the stirring wheel is rotationally arranged in the machine shell, the snow guiding plate assembly is rotationally installed on the machine shell and located on one side of the stirring wheel, the snow throwing machine further comprises an adjusting assembly, the adjusting assembly comprises a rotating rod, a handle and a trigger, one end of the rotating rod is rotationally limited on the machine shell and is in transmission connection with the snow guiding plate assembly, and the other end of the rotating rod is in transmission connection with the handle. The trigger is arranged between the machine shell and the handle in a floating mode and rotates together with the handle, the trigger moves in the axial direction of the rotating rod and is provided with a first position and a second position, a plurality of positioning grooves are formed in one of the trigger and the machine shell in the circumferential direction of the rotating rod, and positioning teeth are correspondingly arranged on the other one of the trigger and the machine shell. When the trigger is located at the first position, the positioning teeth extend into the positioning grooves to lock the handle; when the trigger is located at the second position, the positioning teeth are separated from the positioning grooves to unlock.

Description

Technical Field

[0001] The utility model relates to the technical field of snow shoveling equipment, in particular to a snow thrower. Background Art

[0002] The snow thrower is used to clear the accumulated snow. It includes a rotatable snow shoveling blade. The snow shoveled by the rotation of the snow shoveling blade is guided and thrown to the outside by the snow guide plate. The snow guide plate is connected to the adjustment component by transmission. The direction of the snow guide plate can be adjusted by adjusting the structure, so as to facilitate the adjustment of the guidance of the snow guide plate.

[0003] In the prior art, the snow guide plate and the adjustment assembly are often limited by increasing the torque or increasing the resistance. However, if the snow guide plate is subjected to excessive force during use, the position may be offset and its guidance may be changed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and propose a snow thrower to solve the problem that the snow guide plate will be offset and change its direction when the force is too large.

[0005] In order to achieve the above technical objectives, the utility model provides a snow thrower, comprising a casing, a stirring wheel and a snow guide plate assembly, wherein the stirring wheel is rotatably arranged in the casing, the snow guide plate assembly is rotatably installed on the casing and is located on one side of the stirring wheel, and also comprises an adjustment assembly, wherein the adjustment assembly comprises a rotating rod, a handle and a trigger, one end of the rotating rod is rotationally limited on the casing and is transmission-connected to the snow guide plate assembly, and the other end passes through the trigger and is fixedly connected to the handle, the trigger is floatingly arranged between the casing and the handle and rotates together with the handle, the trigger moves along the axial direction of the rotating rod and has a first position and a second position, one of the trigger and the casing is provided with a plurality of positioning grooves along the circumference of the rotating rod, and the other is provided with positioning teeth accordingly;

[0006] When the trigger is in the first position, the positioning tooth extends into the positioning slot to lock the handle;

[0007] When the trigger is in the second position, the positioning tooth disengages from the positioning slot to release the lock.

[0008] Preferably, a first guide wall is formed on one of the handle and the trigger and extends circumferentially toward the other, the first guide wall encloses a first guide groove that guides the movement direction of the trigger, and the other is at least partially received in the first guide groove.

[0009] Preferably, a return spring having elastic force is provided between the trigger and the handle, and the return spring is sleeved on the rotating rod.

[0010] Preferably, a limiting convex tooth protruding toward the positioning tooth is provided between the two positioning grooves, and when the positioning tooth disengages from the positioning groove and rotates to a predetermined angle, the limiting convex tooth stops the positioning tooth to limit the rotation angle of the handle.

[0011] Preferably, the trigger and the casing are respectively provided with a first rotating fitting portion and a second rotating fitting portion which are positioned opposite to each other, the positioning groove and the positioning tooth are respectively provided on the first rotating fitting portion and the second rotating fitting portion, the first rotating fitting portion extends circumferentially toward the direction of the second rotating fitting portion to form a second guide wall, the second guide wall surrounds a second guide groove which accommodates at least a portion of the second rotating fitting portion, and when the positioning tooth disengages from the positioning groove and rotates, the second guide groove guides the rotation of the second rotating fitting portion.

[0012] Preferably, the adjustment assembly is transmission-connected to the snow guide assembly via a transmission assembly, and the adjustment assembly is arranged on the left side or the right side of the snow guide assembly.

[0013] Preferably, the snow guide plate assembly includes at least one snow guide plate, and the transmission assembly includes a transmission rod, a swing rod and a driven rod, one end of the transmission rod is fixedly connected to the rotating rod, and the other end is rotationally connected to the swing rod, one end of the driven rod is rotationally connected to the swing rod, and the other end is fixedly connected to the snow guide plate, and the snow guide plate is rotatably mounted on the casing, the transmission rod drives the swing rod to swing, and the swing of the swing rod drives the driven rod to rotate around the rotating axis of the snow guide plate to change the guidance of the snow guide plate.

[0014] Preferably, a positioning protrusion is provided circumferentially at one end of the rotating rod away from the trigger, and the transmission rod is fixed to the end of the rotating rod away from the trigger. The positioning protrusion cooperates with the housing to limit the movement of the rotating rod in a direction away from the trigger, and the transmission rod cooperates with the housing to limit the movement of the rotating rod in a direction toward the trigger, thereby limiting the rotation of the rotating rod on the housing.

[0015] Preferably, the snow guide plate is provided with a rotating shaft protruding toward the housing, and the snow guide plate is rotatably mounted on the housing via the rotating shaft. A plug-in portion is provided on one of the rotating shaft and the driven rod, and a plug-in groove is provided on the other. The plug-in portion is plugged into the plug-in groove to detachably fix the rotating shaft and the driven rod.

[0016] Preferably, the handle is provided with a button abutting against the trigger, and a return spring with elastic force is provided between the trigger and the housing. When the button is pressed, the trigger is in the second position, and the positioning tooth disengages from the positioning groove to release the lock.

[0017] After adopting the above technical solution, the utility model has the following beneficial effects.

[0018] 1. The utility model provides a snow thrower, in which positioning teeth and positioning grooves are respectively provided on the handle and trigger of the adjustment structure, so that the guide of the snow guide assembly can be unlocked and locked. At the same time, when the snow guide assembly is locked, the positioning teeth extend into the positioning groove so that the snow guide assembly cannot move, thereby avoiding the problem of the guide of the snow guide assembly changing during use.

[0019] 2. A first guide wall is formed by extending circumferentially from one of the handle and the trigger toward the other, and the first guide wall encloses a first guide groove for guiding the movement direction of the trigger. At least a portion of the other is received in the first guide groove. The first guide groove helps to stabilize the relative position of the handle and the trigger, reduce or avoid shaking of the trigger when it moves relative to the handle, and can better control the movement direction of the trigger, thereby improving the product's operability and user experience.

[0020] 3. By providing a return spring with elastic force between the handle and the trigger, the operator adjusts the snow guide assembly to the corresponding position and releases the trigger, and the trigger automatically returns to the first position to lock the guide of the snow guide assembly. The operator does not need to push the trigger away from the handle, thereby simplifying the operating steps and improving the product experience.

[0021] 4. A limiting convex tooth protruding in the direction of the positioning tooth is provided between the two positioning grooves, thereby limiting the rotation angle of the positioning tooth and preventing the operator from excessively rotating the handle and causing damage to the adjustment structure or transmission component.

[0022] 5. A first rotating fitting portion and a second rotating fitting portion are provided relatively on the trigger and the housing, and the first rotating fitting portion extends circumferentially toward the second rotating fitting portion to form a second guide groove for accommodating at least a portion of the second rotating fitting portion. The second guide groove circumferentially positions the second rotating fitting portion and guides it when the second rotating fitting portion rotates, thereby making the rotation of the rotating rod and the handle more stable.

[0023] 6. By arranging the adjustment component on the left or right side of the snow guide assembly and realizing the transmission between the adjustment component and the snow guide assembly through the transmission component, space and operating space can be reserved for installing other components; at the same time, the offset setting of the adjustment component makes it more convenient for the operator to operate, and the operator will not be blocked by the connecting rod when turning the adjustment component.

[0024] 7. The linkage between the adjustment assembly and the snow guide assembly is realized by adopting a transmission rod, a swing rod and a driven rod, thereby realizing the offset setting of the adjustment assembly on the housing, which can simplify the structure of the transmission assembly and make the transmission path simpler and more direct; at the same time, the mutual restraint and support between the transmission rod, the swing rod and the driven rod can reduce the vibration and deviation of the snow guide assembly during operation, thereby improving the working stability.

[0025] 8. By providing a positioning convex ring on the rotating rod, the rotation of the transmission rod is limited on the housing, thereby ensuring the stability of the adjustment component and the stability of the transmission between the adjustment component and the transmission component.

[0026] 9. Through the design of the plug-in part and the plug-in groove, the transmission assembly can be more conveniently installed and disassembled with the snow guide plate, while also ensuring sufficient connection stability.

[0027] 10. By setting a button on the handle that contacts the trigger and a reset spring between the trigger and the housing, the operator can unlock the handle by pressing the button. This setting can simplify the operation, and the operator does not need to push the trigger away from the handle, thereby improving the product experience.

[0028] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of a snow thrower in an embodiment of the utility model;

[0030] Figure 2 This is a schematic diagram of a working head in an embodiment of the utility model;

[0031] Figure 3 Another schematic diagram of a working head in an embodiment of the utility model;

[0032] Figure 4 It is a schematic diagram of the adjustment assembly, the transmission assembly and the snow guide assembly in the embodiment of the utility model;

[0033] Reference numerals:

[0034] 100, working head, 110, housing, 111, limiting teeth, 112, positioning groove, 113, limiting convex teeth, 114, second rotating matching portion, 120, stirring wheel, 130, snow guide plate assembly, 131, snow guide plate, 132, rotating shaft, 1321, plug-in portion, 140, adjusting assembly, 141, rotating rod, 1411, positioning convex ring, 142, handle, 1421, first guide wall, 143, trigger, 1431, trigger portion, 1432, first rotating matching portion, 1433, second guide wall, 144, reset spring, 150, transmission assembly, 151, transmission rod, 152, swing rod, 153, driven rod, 1531, plug-in groove;

[0035] 200, operating handle;

[0036] 300. Connecting rod. DETAILED DESCRIPTION

[0037] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" and "several" mean two or more, unless otherwise clearly defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] like Figures 1 to 4 As shown, the snow thrower proposed in the embodiment of the utility model includes a working head 100, an operating handle 200 and a connecting rod 300 connected between the working head 100 and the operating handle 200. The working head 100 includes a housing 110, a stirring wheel 120 and a snow guide plate assembly 130. The stirring wheel 120 is rotatably arranged in the housing 110, and the stirring wheel 120 rotates to shovel snow. The snow guide plate assembly 130 is rotatably installed in the housing 110 and is located on one side of the stirring wheel 120, so that the shoveled snow is discharged along the guide of the snow guide plate assembly 130. A motor is also provided in the working head 100, and the motor is transmission-connected to the stirring wheel 120. Among them, the snow guide plate assembly 130 includes at least one snow guide plate 131.

[0043] In some other embodiments, the motor is connected to the agitator 120 through a reduction mechanism. The reduction mechanism can be a gear set, a gear and a chain, a belt and a pulley, or a worm gear.

[0044] The working head 100 also includes an adjustment assembly 140, which includes a rotating rod 141, a handle 142 and a trigger 143. One end of the rotating rod 141 is rotationally limited to the housing 110 and is transmission-connected to the snow guide assembly 130, and the other end passes through the trigger 143 and is fixedly connected to the handle 142. The trigger 143 is floatingly arranged between the housing 110 and the handle 142 and rotates around the axis of the rotating rod 141 together with the handle 142. The housing 110 is provided with a plurality of positioning grooves 112 along the circumference of the rotating rod 141, and the trigger 143 is provided with corresponding positioning teeth (not shown). The trigger 143 can move axially along the rotating rod 141, and the trigger 143 has a first position and a second position. When the trigger 143 is in the first position, the positioning tooth extends into the positioning groove 112 to lock the handle 142, and the handle 142 and the trigger 143 cannot rotate relative to the housing 110; when the trigger 143 is in the second position, the positioning tooth disengages from the positioning groove 112 to release the lock, and the handle 142 and the trigger 143 can rotate relative to the housing 110 to adjust the direction of the snow guide assembly 130.

[0045] The first position may be a position where the trigger 143 is away from the handle 142 or a position where the trigger 143 is close to the handle 142 ; correspondingly, the second position may be a position where the trigger 143 is close to the handle 143 or a position where the trigger 143 is away from the handle 142 .

[0046] A plurality of limiting teeth 111 are disposed on one side of the housing 110 close to the trigger 143 along the circumference of the rotating rod 141 , and positioning grooves 112 are formed between adjacent limiting teeth 111 .

[0047] In some other embodiments, a plurality of limiting teeth 111 may be provided on the trigger 143 on one side close to the housing 110 along the circumference of the rotating rod 141 , and positioning grooves 112 arranged circumferentially around the rotating rod 141 are formed between adjacent limiting teeth 111 , and corresponding positioning teeth are provided on the housing 110 .

[0048] When the operator needs to adjust the guide of the snow guide assembly 130, the operator fastens the trigger 143 of the adjustment assembly 140 to move it toward the handle 142, and the positioning tooth moves out of the positioning groove 112. At this time, the trigger 143 is close to the handle 143 and is in the second position. The handle 142 is rotated to adjust and change the guide of the snow guide assembly 130; the trigger 143 is pushed away from the handle 142 so that the positioning tooth extends into the positioning groove 112. At this time, the trigger 143 is away from the handle 142 and is in the first position, and the guide of the snow guide assembly 130 is locked. By respectively providing the positioning tooth and the positioning groove 112 on the handle 142 and the trigger 143 of the adjustment structure, the guide of the snow guide assembly 130 can be adjusted and locked. At the same time, when the snow guide assembly 130 is locked, the positioning tooth extends into the positioning groove 112 so that the snow guide assembly 130 cannot move, thereby avoiding the problem of the guide of the snow guide assembly 130 changing during use.

[0049] The adjustment assembly 140 is transmission-connected to the snow guide assembly 130 .

[0050] In one embodiment, Figures 2 to 4 As shown, the adjustment assembly 140 is transmission-connected to the snow guide assembly 130 through the transmission assembly 150. The transmission assembly 150 includes a transmission rod 151, a swing rod 152, and a driven rod 153. One end of the transmission rod 151 is fixedly connected to the rotating rod 141, and the other end is rotationally connected to the swing rod 152. One end of the driven rod 153 is rotationally connected to the swing rod 152, and the other end is fixedly connected to the snow guide assembly 130. The snow guide assembly 130 includes at least one snow guide 131, and at least one snow guide 131 is rotationally mounted on the housing 110; accordingly, the number of driven rods 153 corresponds to that of snow guides 131. The operator rotates the handle 142 of the adjustment component 140 to rotate the rotating rod 141. The rotation of the rotating rod 141 drives the transmission rod 151 to rotate. The rotation of the transmission rod 151 drives the swing rod 152 to swing, thereby driving the driven rod 153 to rotate around the rotation axis of the snow guide plate 131, thereby driving the snow guide plate 131 to rotate to change the guidance of the snow guide plate 131.

[0051] The transmission rod 151 is connected to the rotating rod 141 through a keyway, one of which is provided with a connection key and the other is provided with a connection slot. The connection key and the connection slot can be a flat square, a flat slot, or a spline or a flower groove.

[0052] By adopting the transmission rod 151, the swing rod 152 and the driven rod 153 to realize the linkage between the adjustment component 140 and the snow guide plate assembly 130, the offset setting of the adjustment component 140 on the housing 110 is realized, the structure of the transmission component 150 can be simplified, and the transmission path is simpler and more direct; at the same time, the mutual restraint and support between the transmission rod 151, the swing rod 152 and the driven rod 153 can reduce the vibration and deviation of the snow guide plate assembly 130 during operation, thereby improving the working stability.

[0053] In this embodiment, a plurality of snow guide plates 131 are provided, so as to cover as large a snow discharge area as possible formed by the stirring of the stirring wheel 120, thereby better guiding the shoveled snow to the outside of the snow thrower.

[0054] This embodiment is preferred, such as Figure 4 As shown, the snow guide plate 131 is provided with a rotating shaft 132 protruding toward the housing 110, and the snow guide plate 131 is rotatably mounted on the housing 110 via the rotating shaft 132. The rotating shaft 132 is provided with a plug-in portion 1321, and the driven rod 153 is provided with a plug-in groove 1531, and the plug-in portion 1321 is plugged into the plug-in groove 1531. The driven rod 153 and the snow guide plate 131 are detachably fixedly connected by threads.

[0055] In some other preferred embodiments, the driven rod 153 may be provided with an inserting portion 1321 , and the rotating shaft 132 may be provided with an inserting groove 1531 .

[0056] The plug-in portion 1321 and the plug-in slot 1531 are connected by a keyway, which can be a flat square, a flat slot, or a spline or a flower groove.

[0057] By designing the plug-in portion 1321 and the plug-in groove 1531 , the transmission assembly 150 can be more conveniently installed and removed from the snow guide 131 , while also ensuring sufficient connection stability.

[0058] This embodiment is preferred, such as Figures 2 to 4 As shown, a positioning protrusion ring 1411 is circumferentially provided at one end of the rotating rod 141 away from the trigger 143, and the transmission rod 151 is fixed to the end of the rotating rod 141 away from the trigger 143. The positioning protrusion ring 1411 cooperates with the housing 110 to limit the movement of the rotating rod 141 in the direction away from the trigger 143, and the transmission rod 151 cooperates with the housing 110 to limit the movement of the rotating rod 141 in the direction toward the trigger 143, thereby limiting the rotation of the rotating rod 141 on the housing 110.

[0059] By providing a positioning protruding ring 1411 on the rotating rod 141 , the transmission rod 151 is rotationally limited to the housing 110 , thereby ensuring the stability of the adjustment assembly 140 and the stability of the transmission between the adjustment assembly 140 and the transmission assembly 150 .

[0060] In some other embodiments, the adjustment assembly 140 is directly connected to the snow guide assembly 130. Specifically, there is one snow guide 131, and the rotating rod 141 is connected to the snow guide 131, and the rotating rod 141 rotates to drive the snow guide 131 to rotate.

[0061] In some other embodiments, the snow guide assembly 130 includes a plurality of snow guides 131, and a plurality of adjustment assemblies 140 are provided correspondingly, and one adjustment assembly 140 adjusts one snow guide 131. In this way, the transmission assembly 150 can be omitted, and at the same time, the guides of each snow guide 131 can also be set to be different, so that the snow is discharged in different directions.

[0062] In one embodiment, the adjustment assembly 140 is disposed on the right side of the snow guide assembly 130 .

[0063] In some other embodiments, the adjustment assembly 140 may also be disposed on the left side of the snow guide assembly 130 .

[0064] By arranging the adjustment assembly 140 on the left or right side of the snow guide assembly 130, and realizing the linkage between the adjustment assembly 140 and the snow guide assembly 130 through the transmission assembly 150, the adjustment assembly 140 can be offset on the housing 110, thereby leaving space for installing other components and operating space. For example, installation space is left for the connecting rod installation mechanism, motor, battery compartment, circuit board, transmission assembly 150, etc. For example, operating space is left for the battery compartment cover, control box cover, etc. At the same time, because the connecting rod 300 is connected in the middle of the housing 110, the offset setting of the adjustment assembly 140 is more convenient for the operator to operate, and the operator will not be blocked by the connecting rod 300 when turning the adjustment assembly 140.

[0065] In order to achieve the automatic reset of the trigger 143 to the locked position to lock the snow guide assembly 130, in one embodiment, as shown in FIG. Figure 2 As shown, a return spring 144 with elastic force is provided between the handle 142 and the trigger 143, and the return spring 144 is sleeved on the rotating rod 141. By providing the return spring 144 with elastic force between the handle 142 and the trigger 143, the operator adjusts the snow guide assembly 130 to the corresponding position and releases the trigger 143, and the trigger 143 automatically returns to the first position to lock the guide of the snow guide assembly 130, and the operator does not need to push the trigger 143 away from the handle 142, thereby simplifying the operation steps and improving the product experience.

[0066] In another embodiment, a button abutting against the trigger 143 is provided on the handle 142, and a return spring 144 with elastic force is provided between the trigger 143 and the housing 110. When the button is pressed, the trigger 143 is in the second position, the positioning tooth disengages from the positioning groove 112 to release the lock, and the return spring 144 is compressed to store energy.

[0067] In this embodiment, the trigger 143 is away from the handle 142 to be in the first position, and the trigger 143 is close to the handle 143 to be in the second position. Specifically, the button is pressed to push the trigger 143 to move downward through the housing 110 to be in the first position, and the positioning tooth accordingly extends into the housing 110 to disengage the positioning groove 112, thereby releasing the lock. At this time, the operator can rotate the handle 142 to adjust the direction of the snow guide assembly 130. After the adjustment is completed, the operator releases the button or presses the button again to reset the button, and the reset spring 144 pushes the trigger 143 to reset and move to the first position in the direction of the handle 142, and the positioning tooth moves upward and extends into the positioning groove 112 to lock the handle 142 and thus lock the snow guide assembly 130. Such a setting can also simplify the operation, and the operator does not need to push the trigger 143 away from the handle 142, thereby improving the product experience.

[0068] To achieve the simultaneous rotation of the trigger 143 and the handle 142, in one embodiment, Figure 2 , Figure 4 As shown, the handle 142 extends circumferentially toward the trigger 143 to form a first guide wall 1421, and the first guide wall 1421 forms a guide groove. The guide groove cooperates with the trigger 143 to guide the movement direction of the trigger 143, and at least part of the trigger 143 is received in the guide groove.

[0069] It is understandable that the trigger 143 may also extend circumferentially toward the handle 142 to form a first guide wall 1421, and the first guide wall 1421 surrounds a first guide groove. The first guide groove cooperates with the handle 142 to guide the movement direction of the trigger 143, and at least part of the handle 142 is received in the first guide groove.

[0070] A first guide wall 1421 is formed by extending circumferentially on one of the handle 142 and the trigger 143 toward the other, and the first guide wall 1421 surrounds a first guide groove for guiding the movement direction of the trigger 143. At least a portion of the other is received in the first guide groove. The first guide groove helps to stabilize the relative position of the handle 142 and the trigger 143, reduce or avoid shaking of the trigger 143 when it moves relative to the handle 142, and can better control the movement direction of the trigger 143, thereby improving the product's operability and user experience.

[0071] In some other embodiments, a guide post is provided on one of the handle 142 and the trigger 143 along the axial direction of the rotating rod 141, and a guide hole is provided on the other one accordingly, the guide post and the guide hole cooperate to guide the movement direction of the trigger 143, and the guide post is at least partially provided in the guide hole so that the handle 142 and the trigger 143 rotate together. The trigger 143 is floated and rotated together relative to the handle 142 through the guide post and the guide hole.

[0072] In one embodiment, Figure 2 As shown, a trigger body 1431 is provided at one end of the trigger 143 close to the handle 142, a first rotational fitting portion 1432 is provided at one side of the trigger 143 close to the housing 110, a second rotational fitting portion 114 is provided on the housing 110 opposite thereto, a positioning groove 112 and a positioning tooth are provided on the first rotational fitting portion 1432 and the second rotational fitting portion 114 respectively, the first rotational fitting portion 1432 extends circumferentially toward the second rotational fitting portion 114 to form a second guide wall 1433, and the second guide wall 1433 surrounds a second guide groove that accommodates at least part of the second rotational fitting portion 114. The second guide groove circumferentially positions the second rotational fitting portion 114 to reduce or prevent its shaking. When the positioning tooth disengages from the positioning groove 112 and rotates, the second guide groove maintains radial positioning of the second rotational fitting portion 114 and circumferentially guides the rotation of the second rotational fitting portion 114.

[0073] In some other embodiments, the first rotational matching portion 1432 may also be disposed on the housing 110 , and the second rotational matching portion 114 is correspondingly disposed on the trigger 143 .

[0074] By providing the first rotating fitting portion 1432 and the second rotating fitting portion 114 opposite to each other on the trigger 143 and the housing 110, and the first rotating fitting portion 1432 circumferentially extending toward the second rotating fitting portion 114 to form a second guide groove accommodating at least a portion of the second rotating fitting portion 114, the second guide groove circumferentially positions the second rotating fitting portion 114 and guides the second rotating fitting portion 114 when it rotates, so that the rotation of the rotating rod 141 and the handle 142 is more stable. The first rotating fitting portion 1432 is provided on the trigger 143, which can also play a dustproof effect, preventing dust from entering the housing 110 through the gap between the two rotating fitting portions.

[0075] In one embodiment, Figure 2 As shown, a limiting protruding tooth 113 protruding toward the positioning tooth is provided between the two positioning grooves 112 . When the positioning tooth is separated from the positioning groove 112 and rotated to a predetermined angle, the limiting protruding tooth 113 stops the positioning tooth to limit the rotation angle of the handle 142 .

[0076] A limiting protruding tooth 113 protruding toward the positioning tooth is provided between the two positioning grooves 112 , thereby limiting the rotation angle of the positioning tooth and preventing the operator from excessively rotating the handle 142 to cause damage to the adjustment structure or the transmission assembly 150 .

[0077] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A snow thrower, comprising a housing, a stirring wheel and a snow guide plate assembly, wherein the stirring wheel is rotatably arranged in the housing, and the snow guide plate assembly is rotatably mounted on the housing and located on one side of the stirring wheel, characterized in that: The adjusting assembly further comprises a rotating rod, a handle and a trigger, one end of the rotating rod is rotationally limited on the housing and is transmission-connected to the snow guide assembly, and the other end passes through the trigger and is fixedly connected to the handle, the trigger is floatingly arranged between the housing and the handle and rotates together with the handle, the trigger moves along the axial direction of the rotating rod and has a first position and a second position, one of the trigger and the housing is provided with a plurality of positioning grooves along the circumference of the rotating rod, and the other is provided with positioning teeth accordingly; When the trigger is in the first position, the positioning tooth extends into the positioning slot to lock the handle; When the trigger is in the second position, the positioning tooth disengages from the positioning slot to release the lock.

2. A snow thrower according to claim 1, characterized in that: A first guide wall is formed on one of the handle and the trigger and extends circumferentially toward the other. The first guide wall forms a first guide groove that guides the movement direction of the trigger. The other is at least partially received in the first guide groove.

3. A snow thrower according to claim 1, characterized in that: A return spring with elastic force is arranged between the trigger and the handle, and the return spring is sleeved on the rotating rod.

4. A snow thrower according to claim 1, characterized in that: A limiting convex tooth protruding toward the positioning tooth is provided between the two positioning grooves. When the positioning tooth is separated from the positioning groove and rotated to a predetermined angle, the limiting convex tooth stops the positioning tooth to limit the rotation angle of the handle.

5. A snow thrower according to claim 1, characterized in that: The trigger and the casing are respectively provided with a first rotating fitting portion and a second rotating fitting portion which are positioned opposite to each other, the positioning groove and the positioning tooth are respectively provided on the first rotating fitting portion and the second rotating fitting portion, the first rotating fitting portion extends circumferentially toward the second rotating fitting portion to form a second guide wall, the second guide wall surrounds a second guide groove which accommodates at least a portion of the second rotating fitting portion, and when the positioning tooth disengages from the positioning groove and rotates, the second guide groove guides the rotation of the second rotating fitting portion.

6. A snow thrower according to claim 1, characterized in that: The adjusting assembly is transmission-connected to the snow guide assembly via a transmission assembly, and the adjusting assembly is arranged on the left side or the right side of the snow guide assembly.

7. A snow thrower according to claim 6, characterized in that: The snow guide plate assembly includes at least one snow guide plate, and the transmission assembly includes a transmission rod, a swing rod and a driven rod, one end of the transmission rod is fixedly connected to the rotating rod, and the other end is rotationally connected to the swing rod, one end of the driven rod is rotationally connected to the swing rod, and the other end is fixedly connected to the snow guide plate, and the snow guide plate is rotatably mounted on the casing, the transmission rod drives the swing rod to swing, and the swing of the swing rod drives the driven rod to rotate around the rotating axis of the snow guide plate to change the guidance of the snow guide plate.

8. A snow thrower according to claim 7, characterized in that: A positioning protrusion is circumferentially provided at one end of the rotating rod away from the trigger, and the transmission rod is fixed to the end of the rotating rod away from the trigger. The positioning protrusion cooperates with the housing to limit the movement of the rotating rod in a direction away from the trigger, and the transmission rod cooperates with the housing to limit the movement of the rotating rod in a direction toward the trigger, thereby limiting the rotation of the rotating rod on the housing.

9. A snow thrower according to claim 7, characterized in that: The snow guide plate is provided with a rotating shaft protruding toward the housing, and the snow guide plate is rotatably mounted on the housing via the rotating shaft. A plug-in portion is provided on one of the rotating shaft and the driven rod, and a plug-in groove is provided on the other. The plug-in portion is plugged into the plug-in groove, and the rotating shaft and the driven rod are detachably fixedly connected.

10. A snow thrower according to claim 1, characterized in that: The handle is provided with a button abutting against the trigger, and a return spring with elastic force is provided between the trigger and the housing. When the button is pressed, the trigger is in the second position, and the positioning tooth is disengaged from the positioning groove to release the lock.

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