Snow sweeper

Abstract

The utility model provides a snow sweeper which comprises a machine shell, a handle assembly, a snow shoveling auger, a driving motor, an end cover and a large belt wheel. The snow shoveling auger is arranged on the inner side of the lower portion of the machine shell, one end of a transmission shaft located in the snow shoveling auger is rotationally connected with the machine shell, and the other end of the transmission shaft extends into the driving cavity and is in coaxial transmission connection with the large belt wheel. The snow sweeper further comprises a supporting shaft, a synchronizing wheel and a supporting plate. The supporting plate is fixed in the driving cavity, one end of the supporting shaft is tightly inserted into a shell of the driving motor in a matched mode, the other end of the supporting shaft is tightly inserted into the supporting plate, the synchronous wheel coaxially sleeves the supporting shaft and is rotationally connected with the supporting shaft, the synchronous wheel is in transmission connection with the driving wheel through a synchronous belt, and a small belt wheel is coaxially arranged at the outer end of the synchronous wheel. The large belt wheel is in transmission connection with the small belt wheel through a transmission belt. The other end of the transmission shaft penetrates through the large belt wheel and then is rotationally connected with the supporting plate. The snow shoveling device can ensure that the driving motor reliably drives the snow shoveling auger to rotate.

Description

snowplow Technical Field

[0001] This utility model relates to the technical field of snow removal devices, and more specifically, to a snow sweeper. Background Technology

[0002] A snowplow is a device used to clear snow from roads. Currently, snowplows on the market mainly consist of a housing, a handle assembly, a snow-shoveling auger, a drive motor, end caps, and a large pulley. The lower end of the handle assembly is fixed to the rear side of the upper end of the housing. The snow-shoveling auger is located on the inner side of the lower part of the housing, and the drive motor is fixed to the inner side of the upper part of the housing. A drive chamber is located on one side of the housing, and the large pulley is located within the drive chamber. One end of the drive shaft, located inside the snow-shoveling auger, is rotatably connected to the housing, and the other end of the drive shaft extends into the drive chamber and is coaxially connected to the large pulley. The end cap is fixed to one side of the housing and is used to seal the drive chamber. In addition, the large pulley is also connected to the small pulley, which is coaxially fixed on the output shaft of the drive motor, via a transmission belt. However, in the above snowplow structure, when the snow-shoveling auger generates a large working load due to removing snow from the ground, the transmission shaft is prone to eccentricity. This reduces the center distance between the transmission shaft and the output shaft of the drive motor. As a result, the transmission belt becomes loose, causing slippage between the transmission belt and the small and large pulleys. This affects the reliability of the transmission connection between the small and large pulleys, and consequently, the reliable drive of the snow-shoveling auger by the drive motor. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a snow sweeper that can ensure that the drive motor reliably drives the snow shovel auger to rotate, so that the snow shovel auger can reliably remove snow from the ground.

[0004] This utility model provides a snowplow, including a housing, a handle assembly, a snow-shoveling auger, a drive motor, an end cover, and a large pulley. The lower end of the handle assembly is fixed to the rear side of the upper end of the housing. The snow-shoveling auger is disposed on the inner side of the lower part of the housing, and the drive motor is fixed to the inner side of the upper part of the housing. A drive chamber is provided on one side of the housing, and the large pulley is disposed in the drive chamber. One end of a transmission shaft located inside the snow-shoveling auger is rotatably connected to the housing, and the other end of the transmission shaft extends into the drive chamber and is coaxially connected to the large pulley. The end cover is fixed to one side of the housing and is used to close the drive chamber. The machine also includes a support shaft, a synchronous pulley, and a support plate made of metal. The support plate is fixed in the drive cavity. One end of the support shaft is fitted into the housing of the drive motor, and the other end of the support shaft is fitted into the support plate. The synchronous pulley is coaxially sleeved on the outside of the support shaft and rotatably connected to the support shaft. The synchronous pulley is connected to the drive wheel, which is coaxially fixed on the output shaft of the drive motor, via a synchronous belt. A small pulley is coaxially provided on the outer end of the synchronous pulley. A large pulley is connected to the small pulley via a transmission belt. The other end of the transmission shaft passes through the large pulley and is rotatably connected to the support plate.

[0005] By adopting the above-described structure, this invention provides reliable support for one end of the support shaft by tightly fitting it into the housing of the drive motor. Furthermore, the other end of the support shaft is securely attached to a support plate made of metal, which possesses high resistance to deformation, thus ensuring reliable support for the other end of the support shaft. This effectively prevents eccentricity of the synchronous pulley, ensuring that the center distance between the synchronous pulley and the drive pulley remains constant. Consequently, it ensures that the drive motor reliably drives the synchronous pulley and small pulley to rotate via the drive pulley and synchronous belt. Simultaneously, the metal support plate reliably supports the other end of the transmission shaft. This design avoids eccentricity of the drive shaft and the large pulley, ensuring that the center distance between the small and large pulleys remains constant. This, in turn, ensures that the small pulley reliably drives the drive shaft and snowplow auger via the drive belt. Furthermore, with this structure, when the snowplow auger experiences significant workload due to removing snow from the ground, slippage between the synchronous belt and the drive wheel, as well as between the drive belt and the small and large pulleys, is prevented. This ensures that the drive motor reliably drives the drive shaft and snowplow auger to rotate, enabling the snowplow auger to reliably remove snow from the ground.

[0006] In one possible implementation, the support plate is provided with a socket, and the other end of the support shaft is inserted into the socket. With this structure, the other end of the support shaft can be reliably connected to the support plate, that is, the support plate can reliably support the support shaft, thereby avoiding the eccentricity of the support shaft, that is, avoiding the eccentricity of the synchronous pulley and the small pulley, and thus reliably ensuring that the center distance between the synchronous pulley and the drive pulley does not change. In other words, the drive motor can reliably drive the drive shaft and the snow auger to rotate via the drive pulley, synchronous belt, synchronous pulley, small pulley, transmission belt and large pulley.

[0007] In one possible implementation, the outer wall of the support plate is provided with an outwardly protruding annular convex edge, and the outer end of the annular convex edge is provided with an inwardly bent annular support edge. A bearing is embedded in the inner side of the annular convex edge, and the outer ring of the bearing abuts against the annular support edge. The other end of the drive shaft is coaxially inserted into the inner ring of the bearing. With this structure, the bearing can be reliably embedded in the inner side of the annular convex edge, and under the action of the annular support edge, the bearing can be effectively prevented from detaching from the support plate from the inside to the outside. In addition, the drive shaft can be reliably rotatably connected to the support plate through the bearing, that is, the support plate can reliably support the other end of the drive shaft, thereby preventing the drive shaft from being eccentric. This allows the drive motor to reliably drive the drive shaft and the snowplow auger to rotate via the drive wheel, synchronous belt, synchronous pulley, small pulley, transmission belt, and large pulley. The aforementioned annular convex edge and annular support edge are formed by stamping the support plate.

[0008] In one possible implementation, the outer wall of the support plate is provided with a plurality of ribs spaced apart in the circumferential direction around the annular convex edge, and a groove is naturally formed on the back side of each rib. By adopting this structure, the structural strength and deformation resistance of the support plate can be improved under the action of the ribs and the grooves, thereby enabling the support plate to reliably support the other end of the support shaft and the transmission shaft. In addition, the ribs and grooves are formed by stamping the support plate.

[0009] In one possible implementation, a plurality of support columns integrally connected to the housing are provided in the drive cavity. The support plate is provided with positioning grooves corresponding to the plurality of support columns and having open inner ends. The outer end of each support column is inserted into the positioning groove at the corresponding position. A fixing hole is provided at the outer end of each positioning groove. The support plate is fixed to the plurality of support columns by screws passing through the fixing holes and threadedly connected to the support columns. With this structure, the positioning grooves and positioning columns can be pre-positioned and limited by the cooperation of the positioning grooves and positioning columns. This facilitates the assembly of the support plate and the housing and improves the reliability of the support plate after it is fixed to the housing. In addition, after the screws pass through the fixing holes and are threadedly connected to the support columns, the support plate can be reliably fixed to the plurality of support columns, that is, the support plate can be reliably fixed in the drive cavity.

[0010] In one possible implementation, a square-shaped trough is provided at one end of the snow auger, and a transmission plate adapted to the shape of the trough is fixed in the trough. A square hole is provided in the middle of the transmission plate, and the transmission shaft passes through the square hole. The transmission shaft located at the square hole forms a square column part adapted to the square hole. By adopting this structure, under the cooperation of the square column part and the square hole, and under the cooperation of the transmission plate and the trough, the transmission shaft can effectively avoid slipping relative to the circumferential rotation of the snow auger, that is, the transmission shaft can reliably drive the snow auger to rotate. Attached Figure Description

[0011] Figure 1 is a three-dimensional structural diagram of this utility model;

[0012] Figure 2 is a partially exploded three-dimensional structural diagram of the present invention;

[0013] Figure 3 is a three-dimensional structural diagram of the present invention after the end caps are removed;

[0014] Figure 4 is a schematic diagram of the three-dimensional structure of the support plate;

[0015] Figure 5 is a three-dimensional structural diagram of the drive shaft and drive plate after being assembled with the snowplow auger. Detailed Implementation

[0016] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0017] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0018] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0019] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Referring to Figures 1-5, this application discloses a snowplow, including a housing 1, a handle assembly 2, a snow auger 3, a drive motor 4, an end cap 5, and a large pulley 6. The lower end of the handle assembly 2 is fixed to the rear side of the upper end of the housing 1. The snow auger 3 is disposed on the inner side of the lower part of the housing 1. The drive motor 4 is fixed on the inner side of the upper part of the housing 1. A drive cavity 11 is provided on one side of the housing 1. The large pulley 6 is disposed in the drive cavity 11. One end of the transmission shaft 31 located inside the snow auger 3 is rotatably connected to the housing 1, and the other end of the transmission shaft 31 extends into the drive cavity 11 and is coaxially connected to the large pulley 6. The end cap 5 is fixed to one side of the housing 1 and is used to close the drive cavity 11. The snowplow also includes a support shaft 7, a synchronous pulley 8, and a support plate 9 made of metal material. The support plate 9 is fixed in the drive cavity 11. One end of the support shaft 7 is fitted tightly into the housing of the drive motor 4, and the other end of the support shaft 7 is fitted tightly into the support plate 9. The synchronous pulley 8 is coaxially sleeved on the outside of the support shaft 7 and rotatably connected to the support shaft 7. The synchronous pulley 8 is connected to the drive wheel 41, which is coaxially fixed on the output shaft of the drive motor 4, through the synchronous belt 81. A small pulley 82 is coaxially provided at the outer end of the synchronous pulley 8. The large pulley 6 is connected to the small pulley 82 through the transmission belt 61. The other end of the transmission shaft 31 passes through the large pulley 6 and is rotatably connected to the support plate 9. In the above structure, the housing of the drive motor is provided with a blind hole, and one end of the support shaft is fitted tightly into the blind hole located on the housing of the drive motor. In addition, the housing of the drive motor is made of metal material, so that the housing of the drive motor can reliably support one end of the support shaft.

[0021] The support plate 9 is provided with a socket 91, and the other end of the support shaft 7 is inserted into the socket 91. With this structure, the other end of the support shaft can be reliably connected to the support plate, that is, the support plate can reliably support the support shaft, thereby avoiding the eccentricity of the support shaft, that is, avoiding the eccentricity of the synchronous pulley and the small pulley, and thus reliably ensuring that the center distance between the synchronous pulley and the drive pulley does not change. In other words, the drive motor can reliably drive the drive shaft and the snow shovel auger to rotate via the drive pulley, synchronous belt, synchronous pulley, small pulley, transmission belt and large pulley.

[0022] The outer wall of the support plate 9 is provided with an outwardly protruding annular convex edge 92, and the outer end of the annular convex edge 92 is provided with an inwardly bent annular support edge 93. The inner side of the annular convex edge 92 is embedded with a bearing 10, and the outer ring of the bearing 10 abuts against the annular support edge 93. The other end of the drive shaft 31 is coaxially inserted into the inner ring of the bearing 10. With this structure, the bearing can be reliably embedded in the inner side of the annular convex edge, and under the action of the annular support edge, the bearing can be effectively prevented from detaching from the support plate from the inside to the outside. In addition, the drive shaft can be reliably rotatably connected to the support plate through the bearing, that is, the support plate can reliably support the other end of the drive shaft, thereby preventing the drive shaft from being eccentric. This allows the drive motor to reliably drive the drive shaft and the snowplow auger to rotate via the drive wheel, synchronous belt, synchronous pulley, small pulley, drive belt and large pulley. The aforementioned annular convex edge and annular support edge are formed by stamping the support plate.

[0023] The outer wall of the support plate 9 is provided with a number of ribs 94 that are spaced apart in the circumferential direction around the annular convex edge 92, and the back side of each rib 94 naturally forms a groove 95. By adopting this structure, the structural strength and deformation resistance of the support plate can be improved under the action of the ribs and grooves, so that the support plate can reliably support the other end of the support shaft and the transmission shaft. In addition, the ribs and grooves are formed by stamping the support plate.

[0024] A plurality of support columns 12, which are integrally connected to the housing 1, are provided in the drive cavity 11. The support plate 9 is provided with positioning grooves 96, which correspond one-to-one with the plurality of support columns 12 and have open inner ends. The outer end of each support column 12 is inserted into the positioning groove 96 at the corresponding position. Each positioning groove 96 has a fixing hole 97 at its outer end. The support plate 9 is fixed to the plurality of support columns 12 by screws that pass through the fixing holes 97 and are threadedly connected to the support columns 12. With this structure, the positioning grooves and positioning columns can be pre-positioned and limited by the positioning grooves and positioning columns. This facilitates the assembly of the support plate and the housing and improves the reliability of the support plate after it is fixed to the housing. In addition, after the screws pass through the fixing holes and are threadedly connected to the support columns, the support plate can be reliably fixed to the plurality of support columns, that is, the support plate can be reliably fixed in the drive cavity.

[0025] A square-shaped groove 32 is provided on one end of the snow shovel auger 3. A transmission plate 20 that matches the shape of the groove 32 is fixed in the groove 32. A square hole 201 is provided in the middle of the transmission plate 20. The transmission shaft 31 passes through the square hole 201. The transmission shaft 31 located at the square hole 201 forms a square column part 311 that matches the square hole 201. By adopting this structure, under the cooperation of the square column part and the square hole, and under the cooperation of the transmission plate and the groove, the transmission shaft can effectively avoid slipping relative to the circumferential rotation of the snow shovel auger, that is, the transmission shaft can reliably drive the snow shovel auger to rotate.

[0026] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A snowplow, comprising a housing (1), a handle assembly (2), a snow auger (3), a drive motor (4), an end cap (5), and a large pulley (6); the lower end of the handle assembly (2) is fixed to the rear side of the upper end of the housing (1), the snow auger (3) is disposed on the inner side of the lower part of the housing (1), the drive motor (4) is fixed to the inner side of the upper part of the housing (1), a drive cavity (11) is provided on one side of the housing (1), the large pulley (6) is disposed in the drive cavity (11), one end of a transmission shaft (31) located inside the snow auger (3) is rotatably connected to the housing (1), the other end of the transmission shaft (31) extends into the drive cavity (11) and is coaxially connected to the large pulley (6), and the end cap (5) is fixed to one side of the housing (1) and is used to close the drive cavity (11); characterized in that: The snow sweeper also includes a support shaft (7), a synchronous pulley (8), and a support plate (9) made of metal material; the support plate (9) is fixed in the drive cavity (11), one end of the support shaft (7) is fitted into the housing of the drive motor (4), the other end of the support shaft (7) is fitted into the support plate (9), the synchronous pulley (8) is coaxially sleeved on the outside of the support shaft (7) and rotatably connected to the support shaft (7), the synchronous pulley (8) is connected to the drive wheel (41) coaxially fixed on the output shaft of the drive motor (4) through a synchronous belt (81), a small pulley (82) is coaxially provided on the outer end of the synchronous pulley (8), the large pulley (6) is connected to the small pulley (82) through a transmission belt (61), and the other end of the transmission shaft (31) passes through the large pulley (6) and is rotatably connected to the support plate (9).

2. The snowplow according to claim 1, characterized in that: The support plate (9) is provided with a socket (91), and the other end of the support shaft (7) is inserted into the socket (91).

3. The snowplow according to claim 1, characterized in that: The outer side wall of the support plate (9) is provided with an outwardly protruding annular convex edge (92), and the outer end of the annular convex edge (92) is provided with an inwardly bent annular support edge (93). The inner side of the annular convex edge (92) is inlaid with a bearing (10), and the outer ring of the bearing (10) abuts against the annular support edge (93). The other end of the transmission shaft (31) is coaxially inserted into the inner ring of the bearing (10).

4. The snowplow according to claim 3, characterized in that: The outer wall of the support plate (9) is provided with a number of ribs (94) that are spaced apart in the circumferential direction around the annular convex edge (92), and a groove (95) is naturally formed on the back side of each rib (94).

5. The snowplow according to any one of claims 1-4, characterized in that: The drive cavity (11) is provided with a plurality of support columns (12) that are integrally connected to the housing (1). The support plate (9) is provided with positioning grooves (96) that correspond one-to-one with the plurality of support columns (12) and have open inner ends. The outer end of each support column (12) is inserted into the positioning groove (96) at the corresponding position. Each positioning groove (96) has a fixing hole (97) at the outer end. The support plate (9) is fixed to the plurality of support columns (12) by screws that pass through the fixing hole (97) and are threadedly connected to the support column (12).

6. The snowplow according to claim 1, characterized in that: A square-shaped sinkhole (32) is provided on one end of the snow shovel auger (3). A transmission plate (20) that matches the shape of the sinkhole (32) is fixed in the sinkhole (32). A square hole (201) is provided in the middle of the transmission plate (20). The transmission shaft (31) passes through the square hole (201). The transmission shaft (31) located at the square hole (201) forms a square column part (311) that matches the square hole (201).

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