Snow outlet direction adjusting assembly and snow sweeper

Abstract

The utility model provides a snow outlet direction adjusting assembly and a snow sweeper. The snow outlet direction adjusting assembly comprises a snow outlet barrel, a gear set, a flexible shaft and a driving mechanism. The snow outlet barrel is located on the upper portion of the snow sweeper and can rotate. The gear set is used for driving the snow outlet barrel to rotate. The snow outlet cylinder and the gear set adopt the prior art, and do not need to be repeated here. The flexible shaft is used for driving the gear set. The driving mechanism is used for manually driving the rotating shaft to rotate. According to the snow sweeper, the flexible shaft is manually driven by the driving mechanism to rotate forwards and backwards, compared with a snow sweeper in which the snow outlet barrel is driven by a motor to rotate, the motor can be prevented from being burnt out, frozen parts near the snow outlet barrel can be broken, and the steering function of the snow outlet barrel can be recovered conveniently.

Description

Technical Field

[0001] This utility model relates to the field of snow removal equipment technology, specifically to a snow discharge direction adjustment assembly, and also to a snow sweeper. Background Technology

[0002] Snowplows, as a type of snow removal equipment, can greatly reduce the intensity of manual labor and improve snow removal efficiency.

[0003] In existing snowplows, snow is transported to the ground and then thrown out through the snow discharge tube at the top of the snowplow to the side of the road. The snow discharge tube is usually steerable to adjust the direction of snow throwing. Currently, the snow discharge tube often uses a motor and gear set to achieve the steering function. During the snow discharge process, wind blows snow onto the rotating parts (such as gears). The motor generates heat during operation, and this heat melts the snow on the rotating parts (such as gears) and then freezes it. When the motor is used to drive the snow discharge tube to turn again, the frozen rotating parts (such as gears) can easily cause the motor to jam or have insufficient power. The motor is prone to overheating and burning out if it operates under these conditions for a long time. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides a snow discharge direction adjustment assembly and a snow sweeper, which can solve or at least alleviate one or more of the above-mentioned problems and other problems existing in the prior art.

[0005] This utility model provides a snow discharge direction adjustment assembly, including:

[0006] Snow discharge tube, which is rotatably mounted on the snowplow;

[0007] Gear set, used to drive the snow tube to rotate;

[0008] A flexible shaft for driving the gear set; and

[0009] A drive mechanism for manually driving the flexible shaft to rotate.

[0010] Preferably, the drive mechanism includes:

[0011] The mounting base is installed on the connecting rod of the snow sweeper handle;

[0012] The screw is rotatably mounted on the mounting base; and

[0013] A nut is slidably mounted on the mounting base and sleeved on the outside of the screw.

[0014] The screw and the nut together form a ball screw, and one end of the screw is connected to the end of the flexible shaft.

[0015] Preferably, the mounting base has multiple locking grooves arranged along the axial direction of the screw;

[0016] The drive mechanism also includes:

[0017] The armrest base is connected to the nut at one end;

[0018] A locking element, the middle portion of which is hinged to the armrest seat, and one end of which can be inserted into the corresponding locking groove; and

[0019] A compression spring is provided on the armrest seat, with one end abutting against the armrest seat and the other end abutting against the end of the locking member away from the locking groove.

[0020] Preferably, the mounting base has a mounting cavity; the screw is rotatably disposed in the mounting cavity; both sides of the mounting base have relief grooves extending along the axial direction of the screw; the nut is located in the mounting cavity; the ends of the armrest seat pass through the relief grooves from both sides and are connected to the nut.

[0021] Preferably, the armrest seat has a locking hole; the end of the locking member can pass through the locking hole and be inserted into the corresponding locking groove.

[0022] Preferably, the armrest seat is located above the mounting base; the armrest seat has a mounting hole; the compression spring is located inside the mounting hole; the opening of the mounting hole corresponds to the end of the locking member away from the locking groove.

[0023] Preferably, the mounting base has a first mounting groove extending along the axial direction of the screw on the side near the armrest seat; the armrest seat has a second mounting groove extending along the axial direction of the screw on the side facing the mounting base; the first mounting groove can fit against the snow sweeper handle connecting rod; the second mounting groove can be clearance-fitted with the snow sweeper handle connecting rod.

[0024] Preferably, arc-shaped guide plates are connected to both sides of the armrest seat; the arc-shaped end face of the arc-shaped guide plate is in clearance fit with the snow sweeper handle connecting rod.

[0025] Preferably, it also includes a flexible hose; the hose clearance is located outside the flexible shaft.

[0026] This utility model also provides a snow sweeper, including any of the above-mentioned snow discharge direction adjustment assemblies.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] In this invention, the flexible shaft is manually driven to rotate forward and backward by a drive mechanism. Compared with a snowplow that drives the snow tube to rotate by a motor, this avoids motor burnout and can break up the frozen parts near the snow tube to restore the snow tube's turning function. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0030] Figure 1 This is a perspective view of a snow sweeper according to one embodiment of the present invention;

[0031] Figure 2 for Figure 1 A 3D view of the snow outlet direction adjustment assembly in conjunction with the snow sweeper handle connecting rod;

[0032] Figure 3 This is a perspective view of a snow discharge direction adjustment assembly according to an embodiment of the present invention;

[0033] Figure 4 for Figure 3 A three-dimensional view of the mounting base;

[0034] Figure 5 for Figure 4 Another 3D image;

[0035] Figure 6 for Figure 4 Another 3D image;

[0036] Figure 7 for Figure 4 Internal structure diagram;

[0037] Figure 8 for Figure 7 A schematic diagram showing the fit between the flexible shaft and the mounting base.

[0038] Figure label:

[0039] 10. Snow tube;

[0040] 20. Gear set;

[0041] 30. Flexible shaft; 31. Flexible hose;

[0042] 40. Drive mechanism; 41. Mounting base; 411. Locking groove; 412. Mounting cavity; 413. Clearance groove; 414. First mounting groove; 42. Screw; 43. Nut; 44. Armrest base; 441. Locking hole; 442. Mounting hole; 443. Second mounting groove; 45. Locking element; 46. Compression spring; 47. Arc-shaped guide plate;

[0043] 50. Snow sweeper handle connecting rod. Detailed Implementation

[0044] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0045] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0046] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0047] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0048] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] In 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.

[0050] See Figures 1 to 8 This embodiment provides a snow discharge direction adjustment assembly, including a snow discharge tube 10, a gear set 20, a flexible shaft 30, and a drive mechanism 40.

[0051] The snow discharge tube 10 is rotatably mounted on the snowplow. A gear set 20 drives the snow discharge tube 10 to rotate. The snow discharge tube 10 and gear set 20 utilize existing technology. The gear set 20 consists of a gear ring and a transmission gear. The gear ring is rotatably mounted at the snow outlet of the snowplow. The snow discharge tube is fixedly connected to the gear ring. The lower end face of the gear ring has teeth that mesh with the transmission gear, which is rotatably mounted on the snowplow. A flexible shaft 30 drives the gear set 20 (the flexible shaft drives the transmission gear to rotate). A drive mechanism 40 is used to manually drive the flexible shaft 30 to rotate.

[0052] In this embodiment, the flexible shaft 30 is manually driven to rotate forward and reverse by the drive mechanism 40, so as to control the snow discharge tube 10 to adjust the snow throwing direction through the gear set 20. Compared with the snow sweeper that drives the snow discharge tube 10 to rotate by a motor, it can avoid the situation where the motor jams and has insufficient power after the gear set 20 freezes. It can also avoid the phenomenon that the motor burns out due to prolonged jamming or insufficient power. In addition, by driving the flexible shaft 30 to rotate forward and reverse repeatedly, the gear teeth of the gear ring of the gear set 20 and the gear of the transmission gear mesh back and forth repeatedly, which can break the ice on the gear set 20 and restore the steering function of the snow discharge tube 10.

[0053] In existing technologies, the snow discharge tube 10 can be rotated by pulling ropes, where the snow discharge tube 10 can be rotated by pulling two ropes. In other existing technologies, a control lever is mounted on the handle connecting rod of the snowplow, and the end of the control lever is connected to a connecting rod via a universal joint. This connecting rod is then connected to the gear set 20 to achieve rotation of the snow discharge tube 10. In comparison, the flexible shaft 30 allows for simplification of the transmission structure.

[0054] In one embodiment, the drive mechanism 40 includes a mounting base 41, a screw 42, and a nut 43.

[0055] Mounting base 41 is mounted on snow sweeper handle connecting rod 50. The handle connecting rod connects the handle to the snow sweeper body. The operator holds the handle and moves the snow sweeper body via the handle connecting rod. Screw 42 is rotatably mounted on mounting base 41. Nut 43 is slidably mounted on mounting base 41 and threadedly connected to screw 42; the screw 42 rotates by sliding nut 43. One end of screw 42 is connected to the end of flexible shaft 30. The end of screw 42 has a straight prism hole, rectangular hole, or other irregularly shaped hole along its axial center line. The ends (both ends) of flexible shaft 30 are fixedly connected to mating prism blocks, mating rectangular columns, or other irregularly shaped columns. During installation, the mating prism blocks, mating rectangular columns, or other irregularly shaped columns are inserted into the prism holes, rectangular holes, or other irregularly shaped holes, making installation convenient. In one embodiment, nut 43 is sleeved on the outside of screw 42, and steel balls are provided inside nut 43; screw 42 and nut 43 form a ball screw.

[0056] Furthermore, the size of the mating prism block, mating rectangular column, or other irregularly shaped mating column connected to the end of the flexible shaft 30 is larger than that of the flexible shaft 30. A through hole is provided on the mounting base 41 for the flexible shaft 30 to pass through. When the flexible shaft 30 is retracted, the mating prism block, mating rectangular column, or other irregularly shaped mating column abuts against the opening of the through hole, thus preventing the flexible shaft 30 from disengaging from the mounting base 41. A connecting through hole is also provided on the snow sweeper corresponding to the transmission gear of the gear set 20. The mating prism block, mating rectangular column, or other irregularly shaped mating column at the other end of the flexible shaft 30 passes through this connecting through hole and is connected to the transmission gear. When the other end of the flexible shaft 30 is retracted, its mating prism block, mating rectangular column, or other irregularly shaped mating column abuts against the end of the connecting through hole, thus preventing the end of the flexible shaft 30 near the gear set 20 from disengaging from the transmission gear of the gear set 20. Similar to the straight prism hole, rectangular hole, or other irregular hole at the end of the screw 42, the transmission gear in the gear set 20 also has the same hole to facilitate connection of the other end of the flexible shaft. In one embodiment, both ends of the flexible shaft 30 are provided with mating prism blocks, and the end of the screw 42 near the flexible shaft 30 is provided with a straight prism hole for connecting the mating prism block. The transmission gear of the gear set 20 is also provided with a straight prism hole. The mating prism blocks at both ends of the flexible shaft 30 are respectively connected to the straight prism holes of the screw 42 and the transmission gear, so that the screw 42 drives the transmission gear of the gear set 20 to rotate through the flexible shaft 30, thereby controlling the gear ring to drive the snow tube 10 to rotate.

[0057] In this embodiment, the reciprocating linear motion of the nut 43, driven manually, rotates the screw 42, which in turn rotates the flexible shaft 30. Each reciprocating movement of the nut 43 causes the flexible shaft 30 to rotate clockwise and counterclockwise multiple times. After the gear set 20 of the snow outlet 10 is iced, the nut 43 can be manually driven to reciprocate in small amplitudes, causing the flexible shaft 30 to rotate clockwise and counterclockwise in small amplitudes, thus impacting the icy area of ​​the gear set 20. Once the icy area of ​​the gear set 20 is slightly broken, the reciprocating amplitude of the nut 43 is increased, resulting in a greater impact on the icy area of ​​the gear set 20, thereby removing the ice and restoring the steering function of the snow outlet 10. The mounting base 41 can be bolted to the snowplow handle connecting rod 50.

[0058] The manual drive nut 43 moves back and forth, which is more natural, convenient and quick to apply force, thereby creating a higher frequency and greater impact on the icy position of the gear set 20 of the snow tube 10, which is conducive to breaking the ice at the gear set 20 of the snow tube 10.

[0059] Furthermore, as the degree of ice removal from the gear set 20 of the snow outlet 10 increases, the distance that the nut 43 can reciprocate increases, thereby allowing the nut 43 to obtain greater inertia during movement. This results in the flexible shaft 30 having greater rotational inertia, providing a greater impact force, which is beneficial for removing ice from the gear set 20 of the snow outlet 10.

[0060] Furthermore, the reciprocating movement distance of nut 43 can be set to be relatively long, thereby further improving the inertia of nut 43 during reciprocating movement; at the same time, this setting can also produce the following effect when the snow outlet 10 gear set 20 is not frozen and daily steering adjustments are being made:

[0061] The turning angle range of the snow outlet 10 is fixed. As the reciprocating distance of the nut 43 increases, the pitch increases accordingly. The distance that the nut 43 moves increases for every 1 degree that the snow outlet 10 rotates, thus making the adjustment of the turning of the snow outlet 10 by the nut 43 more accurate.

[0062] The screw 42 has multiple spiral grooves, and the inner wall of the nut 43 has multiple spiral elongated protrusions. The multiple elongated protrusions slide and engage with the multiple spiral grooves simultaneously, thereby making the nut 43 and the screw 42 fit tightly and the transmission stable.

[0063] In one embodiment, the mounting base 41 has a plurality of locking grooves 411 arranged along the axial direction of the screw 42.

[0064] The drive mechanism 40 also includes an armrest 44, a locking element 45, and a compression spring 46.

[0065] One end of the armrest seat 44 is connected to the nut 43. The middle part of the locking member 45 is hinged to the armrest seat 44, and one end of the locking member 45 can be inserted into the corresponding locking groove 411. The compression spring 46 is provided on the armrest seat 44, one end of the compression spring 46 abuts against the armrest seat 44, and the other end of the compression spring 46 abuts against the end of the locking member 45 away from the locking groove 411.

[0066] In this embodiment, the end of the locking member 45 is inserted into the locking groove 411 under the action of the compression spring 46, thereby locking the nut 43 and the mounting base 41. When unlocking is required, pressing the end of the locking member 45 away from the locking groove 411 will unlock it.

[0067] In one embodiment, the mounting base 41 has a mounting cavity 412. The entire base is elongated, and the mounting cavity 412 is also elongated. The screw 42 is rotatably disposed within the mounting cavity 412. Both sides of the mounting base 41 have relief grooves 413 extending axially along the screw 42. The nut 43 is located within the mounting cavity 412, and the ends of the armrest seat 44 pass through the relief grooves 413 from both sides and are connected to the nut 43.

[0068] In this embodiment, the screw 42 and nut 43 are located inside the mounting cavity 412, which can reduce dust adhesion to the screw 42, protect the screw 42 and nut 43, and extend their service life.

[0069] In one embodiment, the armrest seat 44 is provided with a locking hole 441; the end of the locking member 45 can pass through the locking hole 441 and be inserted into the corresponding locking groove 411.

[0070] In this embodiment, the lower end of the locking member 45 passes through the locking hole 441 and is inserted into the locking groove 411, which makes the locking between the armrest seat 44 and the nut 43 connected thereto and the mounting base 41 more secure.

[0071] In one embodiment, the armrest base 44 is located above the mounting base 41. The armrest base 44 has a mounting hole 442. A compression spring 46 is located within the mounting hole 442. The opening of the mounting hole 442 corresponds to the end of the locking member 45 furthest from the locking groove 411.

[0072] In this embodiment, when manually operating the armrest seat 44 to move back and forth, the palm contacts the end of the armrest seat 44 away from the mounting base 41, the fingers naturally grasp the armrest seat 44 in a claw shape, and the thumb is placed on the locking member 45; the upper end of the locking member 45 is pressed with the thumb to unlock, and the armrest seat 44 can be operated with one hand to drive the nut 43 to move back and forth in a straight line, which is quite convenient.

[0073] In one embodiment, a first mounting groove 414 extending axially along the screw 42 is provided on the side of the mounting base 41 near the armrest seat 44; a second mounting groove 443 extending axially along the screw 42 is provided on the side of the armrest seat 44 facing the mounting base 41; the first mounting groove 414 can fit against the snow sweeper handle connecting rod 50, and the second mounting groove 443 can be clearance-fitted with the snow sweeper handle connecting rod.

[0074] In this embodiment, when the mounting base 41 and the armrest base 44 are installed onto the handle connecting rod, the first mounting groove 414 and the second mounting groove 443 can achieve a positioning function, which facilitates installation.

[0075] In one embodiment, arc-shaped guide plates 47 are connected to both sides of the armrest seat 44; the arc-shaped end faces of the arc-shaped guide plates 47 are used for clearance fit with the snow sweeper handle connecting rod 50. When force is applied to the armrest seat 44 manually, the armrest seat 44 moves axially along the snow sweeper handle connecting rod 50, at which time the two arc-shaped guide plates 47, the armrest seat 44, and the nut 43 slide on the mounting base 41. In addition, when the lower ends of the armrest seat 44 pass through the relief grooves 413, they slide in a sliding fit with the relief grooves 413 along the axial direction of the screw 42, making the movement of the armrest seat 44 and the nut 43 along the axial direction of the screw 42 more stable.

[0076] In one embodiment, the snow discharge direction adjustment assembly further includes a hose 31. The hose 31 is spaced outside the flexible shaft 30.

[0077] In this embodiment, the flexible hose 31 wraps around the flexible shaft 30 to prevent the rotating flexible shaft 30 from interfering with the outside.

[0078] This embodiment provides a snowplow, including any of the above-mentioned snow discharge direction adjustment assemblies.

[0079] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A snow discharge direction adjustment assembly, characterized in that, include: Snow discharge tube (10) is rotatably mounted on a snowplow; Gear set (20) for driving the snow tube (10) to rotate; A flexible shaft (30) is used to drive the gear set (20); and A drive mechanism (40) is used to manually drive the flexible shaft (30) to rotate.

2. The snow discharge direction adjustment assembly as described in claim 1, characterized in that, The drive mechanism (40) includes: Mounting base (41) is provided on snow sweeper handle connecting rod (50); The screw (42) is rotatably mounted on the mounting base (41); and Nut (43) is slidably disposed on the mounting base (41) and sleeved on the outside of the screw (42); The screw (42) and the nut (43) form a ball screw, and one end of the screw (42) is connected to the end of the flexible shaft (30).

3. The snow discharge direction adjustment assembly as described in claim 2, characterized in that, The mounting base (41) is provided with a plurality of locking grooves (411) arranged along the axial direction of the screw (42). The drive mechanism (40) further includes: The armrest seat (44) is connected at one end to the nut (43); A locking element (45), the middle part of which is hinged to the armrest seat (44), one end of which can be inserted into the corresponding locking groove (411); and A compression spring (46) is provided on the armrest seat (44), with one end abutting against the armrest seat (44) and the other end abutting against the end of the locking member (45) away from the locking groove (411).

4. The snow discharge direction adjustment assembly as described in claim 3, characterized in that, The mounting base (41) has a mounting cavity (412); the screw (42) is rotatably disposed in the mounting cavity (412); both sides of the mounting base (41) have relief grooves (413) extending axially along the screw (42); the nut (43) is located in the mounting cavity (412); the ends of the armrest seat (44) pass through the relief grooves (413) from both sides and are connected to the nut (43).

5. The snow discharge direction adjustment assembly as described in claim 4, characterized in that, The armrest seat (44) has a locking hole (441); the end of the locking member (45) can pass through the locking hole (441) and be inserted into the corresponding locking groove (411).

6. The snow discharge direction adjustment assembly as described in claim 5, characterized in that, The armrest seat (44) is located above the mounting base (41); the armrest seat (44) has a mounting hole (442); the compression spring (46) is located inside the mounting hole (442); the opening of the mounting hole (442) corresponds to the end of the locking member (45) away from the locking groove (411).

7. A snow discharge direction adjustment assembly as described in any one of claims 3-6, characterized in that, The mounting base (41) has a first mounting groove (414) extending axially along the screw (42) on the side near the armrest seat (44); the armrest seat (44) has a second mounting groove (443) extending axially along the screw (42) on the side facing the mounting base (41); the first mounting groove (414) can fit against the snow sweeper handle connecting rod (50); the second mounting groove (443) can be clearance-fitted with the snow sweeper handle connecting rod (50).

8. The snow discharge direction adjustment assembly as described in claim 7, characterized in that, The armrest seat (44) is connected to two arc-shaped guide plates (47) on both sides respectively; the arc-shaped end face of the arc-shaped guide plate (47) is in clearance fit with the snow sweeper handle connecting rod (50).

9. The snow discharge direction adjustment assembly as described in claim 8, characterized in that, It also includes a hose (31); the hose (31) is kept outside the flexible shaft (30).

10. A snowplow, characterized in that, Includes the snow outlet direction adjustment assembly as described in any one of claims 1-9.

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