Dustproof gear box structure for mower

Abstract

The utility model relates to the technical field of mowers, and discloses a dustproof gearbox structure for a mower, which comprises a shell, the bottom of the outer wall of the shell is communicated with a bottom column, the inner wall of the bottom column is rotatably connected with a bevel gear rod I, and the right side of the top of the bevel gear rod I is meshed with a bevel gear rod II; a heat dissipation mechanism is arranged in the shell, the heat dissipation mechanism is used for rapidly discharging heat generated in the shell, a mounting mechanism is arranged on the right side of the shell, and the mounting mechanism is used for conveniently disassembling the protection structure; the heat dissipation mechanism comprises a third bevel gear rod. According to the heat dissipation device, the third bevel gear rod and the first bevel gear are meshed with each other to rotate synchronously and drive the fan to rotate, the internal temperature gas collecting hood is matched with the fan to conduct rapid exhaust, external air enters the shell through the cooperation of the gas inlet and the gas inlet pipe, and rapid heat dissipation treatment on the first bevel gear rod and the second bevel gear rod is achieved.

Description

Technical Field

[0001] This utility model relates to the field of lawnmower technology, and in particular to a dustproof gearbox structure for lawnmowers. Background Technology

[0002] A lawnmower is a mechanical device used to trim lawns, efficiently completing the task and keeping the lawn clean and beautiful. Lawnmowers come in various designs, from simple manual lawnmowers to complex automatic lawnmower robots, each with its own characteristics and suitable for different usage scenarios and needs. Lawnmowers generate a lot of dust during operation. Since the gearbox in the lawnmower is a transmission component, it is directly exposed to the dust generated during the mowing process. Furthermore, because existing lawnmower gearboxes do not have a dustproof structure, dust directly enters the interior of the gearbox, which has a gear transmission. Over time, this accumulation of dust causes a significant amount of dust to build up on the gear structure inside the gearbox, accelerating wear between the gears and reducing the lifespan of the gearbox.

[0003] To prevent dust, existing gearboxes use high-performance rubber or composite materials to make sealing rings to extend the service life of the seals. At the same time, double sealing is used to improve the sealing effect, but this will affect its ventilation and heat dissipation. When the lawnmower is working, the gears inside the gearbox rotate at high speed and generate heat. If the heat cannot be dissipated in time, it will cause the temperature inside the gearbox to rise, affecting the performance of the gears and lubricating oil, accelerating gear wear, and reducing the service life of the gearbox. Therefore, a dustproof gearbox structure for lawnmowers is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a dustproof gearbox structure for lawnmowers, aiming to improve the problem in the prior art where the high-speed operation of gears generates heat that cannot be dissipated in time, leading to an increase in temperature inside the gearbox, affecting the performance of gears and lubricating oil, and accelerating gear wear.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a dustproof gearbox structure for a lawnmower, comprising a shell, a bottom column connected to the bottom of the outer wall of the shell, a bevel gear rod rotatably connected to the inner wall of the bottom column, a bevel gear rod 2 meshing with the top right side of the bevel gear rod 1, a heat dissipation mechanism provided inside the shell for quickly dissipating internal heat, and a mounting mechanism provided on the right side of the shell for facilitating the disassembly of the protective structure; the heat dissipation mechanism includes a bevel gear rod 3, the right side of which meshes with the top left side of the bevel gear rod 1, the outer... A gas collection shroud is fixedly connected to the left side of the shell. The left end of the bevel gear rod three passes through the right side of the gas collection shroud and is fixedly connected to a fan. Connecting pipes are provided on both the left and right sides of the inner wall of the shell. Multiple air ducts are connected between adjacent connecting pipes. All air vents are opened on the outer wall of the multiple air ducts. An exhaust pipe is connected to the top of the outer wall of the left connecting pipe. The other end of the exhaust pipe passes through the inner wall of the shell and is connected to the top of the outer wall of the gas collection shroud. An air inlet pipe is connected to the top of the outer wall of the right connecting pipe. The other end of the air inlet pipe is connected to an air inlet. A filter assembly is provided on the inner wall of the air inlet. Multiple heat sinks are fixedly connected to the inner wall of the shell.

[0006] As a further description of the above technical solution:

[0007] The installation mechanism includes a fixing ring. The outer wall of the fixing ring is fixedly connected to the right side of the outer wall of the outer shell. The right side of the fixing ring is provided with a first insertion groove. The upper and lower sides of the outer wall of the fixing ring are provided with slots. The right side of the fixing ring is provided with a second insertion groove. The inner walls of the two first insertion grooves are slidably connected with locking plates. The inner walls of the two second insertion grooves are slidably connected with top blocks. The left sides of the two top blocks are fixedly connected with springs. The right sides of the two locking plates are fixedly connected with protective covers. The left sides of the protective covers are fixedly connected with insertion plates.

[0008] As a further description of the above technical solution:

[0009] The filter assembly includes a filter screen, the outer wall of which is fixedly connected to the top of the inner wall of the air inlet.

[0010] As a further description of the above technical solution:

[0011] The installation mechanism also includes two handles, with each handle's adjacent side fixedly connected to the front and rear sides of the outer wall of the protective cover.

[0012] As a further description of the above technical solution:

[0013] A limit ring is fixedly connected to the top of the outer wall of the shell, and multiple reinforcing plates are fixedly connected to the left side of the shell.

[0014] As a further description of the above technical solution:

[0015] The bottom of the base column is fixedly connected to a base, and a connecting plate is fixedly connected to the right side of the outer wall of the base.

[0016] As a further description of the above technical solution:

[0017] The front side of the connecting plate has a screw hole, and a bolt is threaded into the screw hole. A sealing ring is fixedly connected to the front end of the outer wall of the bolt.

[0018] As a further description of the above technical solution:

[0019] A mounting base is fixedly connected to the front side of the outer wall of the base column, and a controller is fixedly connected to the front side of the mounting base.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, bevel gear rod three meshes with bevel gear one and rotates synchronously, driving the fan to rotate. The air duct and connecting pipe are connected to each other, allowing external air and internal air to circulate. The internal temperature enters the air collection hood through the exhaust pipe and is quickly discharged through the air collection hood in conjunction with the fan. External air enters the outer shell through the air inlet in conjunction with the air inlet pipe, achieving rapid heat dissipation for bevel gear rod one and bevel gear rod two.

[0022] 2. In this utility model, after the plug plate on the protective cover is inserted into the plug slot two for positioning and installation, it is then inserted into the plug slot one in conjunction with the locking plate. The protrusion will lock into the slot, thereby fixing the protective cover in place. When disassembly is required, the protrusion on the locking plate is pressed to unlock it. Then, the plug plate, in conjunction with the top block and the spring, pushes the protective cover outward to complete the disassembly. Attached Figure Description

[0023] Figure 1 This is a perspective view of a dustproof gearbox structure for a lawnmower proposed in this utility model;

[0024] Figure 2 This is a front view of a dustproof gearbox structure for a lawnmower proposed in this utility model;

[0025] Figure 3 This is a cross-sectional view of a dustproof gearbox structure for a lawnmower proposed in this utility model;

[0026] Figure 4 This is an exploded view of the mounting mechanism of a dustproof gearbox structure for a lawnmower proposed in this utility model;

[0027] Figure 5This is an exploded view of the structure of a dustproof gearbox for a lawnmower proposed in this utility model.

[0028] Legend:

[0029] 1. Outer shell; 2. Base column; 3. Bevel gear rod one; 4. Bevel gear rod two; 5. Heat dissipation mechanism; 501. Bevel gear rod three; 502. Air collection shroud; 503. Fan; 504. Connecting pipe; 505. Air duct; 506. Air hole; 507. Air inlet; 508. Air inlet pipe; 509. Exhaust pipe; 510. Heat sink; 511. Filter screen; 6. Mounting mechanism; 601. Fixing ring; 602. Insertion slot one; 603. Slot; 604. Locking plate; 605. Insertion slot two; 606. Top block; 607. Spring; 608. Insertion plate; 609. Protective cover; 610. Handle; 7. Limiting ring; 8. Reinforcing plate; 9. Base; 10. Mounting base; 11. Controller; 12. Screw hole; 13. Bolt; 14. Sealing ring; 15. Connecting plate. Detailed Implementation

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of a dustproof gearbox structure for a lawnmower, comprising a housing 1, a bottom post 2 connected to the bottom of the outer wall of the housing 1, the bottom post 2 and the housing 1 being integrally formed, a bevel gear rod 3 rotatably connected to the inner wall of the bottom post 2, and a bevel gear rod 4 meshing with the top right side of the bevel gear rod 3, the bevel gear rod 3 and the bevel gear rod 4 meshing and rotating to achieve the rotation drive of the lawnmower, a heat dissipation mechanism 5 is provided inside the housing 1 to quickly dissipate the heat generated inside, and a mounting mechanism 6 is provided on the right side of the housing 1 for easy disassembly. The protective structure is removed; the heat dissipation mechanism 5 includes a bevel gear rod 3 501, the right side of which is meshed with the top left side of bevel gear rod 1. A gas collection shroud 502 is fixedly connected to the left side of the outer casing 1. The left end of the bevel gear rod 3 501 passes through the right side of the gas collection shroud 502 and is fixedly connected to a fan 503. The bevel gear rod 3 501 and bevel gear 1 mesh with each other to achieve synchronous rotation and drive the fan 503 to rotate. Connecting pipes 504 are provided on both the left and right sides of the inner wall of the outer casing 1. Multiple air ducts 505 are connected between adjacent connecting pipes 504. The outer walls of the multiple air ducts 505 are all opened with air holes 506. The duct 505 and the connecting pipe 504 are interconnected, allowing for the circulation of external and internal air. An exhaust pipe 509 is connected to the top of the outer wall of the left connecting pipe 504. The other end of the exhaust pipe 509 penetrates the inner wall of the outer casing 1 and connects to the top of the outer wall of the air collection hood 502. Internal air enters the air collection hood 502 through the exhaust pipe 509 and is rapidly exhausted through the air collection hood 502 in conjunction with the fan 503. An air inlet pipe 508 is connected to the top of the outer wall of the right connecting pipe 504. The other end of the air inlet pipe 508 is connected to an air inlet 507, allowing external air to circulate through the air inlet 507 in conjunction with the air inlet pipe 508. 8 enters the outer casing 1 to achieve rapid heat dissipation of bevel gear rod 3 and bevel gear rod 4. The inner wall of the air inlet 507 is provided with a filter assembly. Multiple heat sinks 510 are fixedly connected to the inner wall of the outer casing 1. The filter assembly includes a filter screen 511. The outer wall of the filter screen 511 is fixedly connected to the top of the inner wall of the air inlet 507. At the same time, the heat sinks 510 can absorb most of the heat and dissipate it. The filter screen 511 can filter the outside air to prevent dust from entering the outer casing 1. A limit ring 7 is fixedly connected to the top of the outer wall of the outer casing 1. Multiple reinforcing plates 8 are fixedly connected to the left side of the outer casing 1.

[0032] Reference Figure 2 , Figure 4 and Figure 5The installation mechanism 6 includes a fixing ring 601. The outer wall of the fixing ring 601 is fixedly connected to the right side of the outer wall of the outer shell 1. The fixing ring 601 and the outer shell 1 are integrally formed. A first insertion groove 602 is provided on the right side of the fixing ring 601. A slot 603 is provided on the upper and lower sides of the outer wall of the fixing ring 601. The slot 603, in conjunction with the first insertion groove 602, enables subsequent fixing. A second insertion groove 605 is provided on the right side of the fixing ring 601. A locking plate 604 is slidably connected to the inner wall of each of the two first insertion grooves 602. A protrusion is provided at the end of the locking plate 604. When the locking plate 604 is inserted into the first insertion groove 602, the protrusion engages in the slot 603. A top block 606 is slidably connected to the inner wall of each of the two second insertion grooves 605. Each top block 606 has a spring 607 fixedly connected to its left side, and each of the two locking plates 604 has a protective cover 609 fixedly connected to its right side. Each of the protective covers 609 has a plug-in plate 608 fixedly connected to its left side. When the plug-in plate 608 on the protective cover 609 is inserted into the plug-in slot 605 to complete the positioning and installation, it cooperates with the locking plate 604 to install and fix the protective cover 609. When disassembly is required, the protrusion on the locking plate 604 is pressed to unlock it. Then, with the cooperation of the top block 606 and the spring 607, the plug-in plate 608 pushes the protective cover 609 outward to complete the disassembly. The installation mechanism 6 also includes two handles 610, and the adjacent sides of the two handles 610 are fixedly connected to the front and rear sides of the outer wall of the protective cover 609.

[0033] Reference Figure 1 , Figure 2 and Figure 5 The bottom of the base column 2 is fixedly connected to the base 9. The outer right side of the base 9 is fixedly connected to the connecting plate 15. The connecting plate 15 is connected to the installation area on the lawnmower. The front side of the connecting plate 15 has a screw hole 12. The screw hole 12 is threaded with a bolt 13. The bolt 13 is inserted into the screw hole 12 to fix the entire device. The front end of the outer wall of the bolt 13 is fixedly connected to a sealing ring 14. The sealing ring 14 can prevent liquid from penetrating the screw hole 12 and improve the protection of the bolt 13. The front side of the outer wall of the base column 2 is fixedly connected to the mounting base 10. The front side of the mounting base 10 is fixedly connected to the controller 11. The controller 11 facilitates simple operation and control of the operating equipment on the entire device.

[0034] Working principle: First, bevel gear rod 3 and bevel gear rod 4 mesh and rotate to drive the lawnmower. At the same time, bevel gear rod 3 501 meshes and rotates synchronously with bevel gear rod 3, driving the fan 503 to rotate. The air duct 505 and the connecting pipe 504 are connected to each other, allowing the external air and internal air to circulate. The internal temperature enters the air collection hood 502 through the exhaust pipe 509 and is quickly discharged through the air collection hood 502 in conjunction with the fan 503. External air enters the outer shell 1 through the air inlet 507 and the air inlet pipe 508, achieving rapid heat dissipation for bevel gear rod 3 and bevel gear rod 4. At the same time, the heat sink 510 can absorb most of the heat and dissipate it. The filter screen 511 can filter the external air to prevent dust from entering the outer shell 1.

[0035] After the plug plate 608 on the protective cover 609 is inserted into the second plug slot 605 for positioning and installation, it cooperates with the locking plate 604 to be inserted into the first plug slot 602. The protrusion will lock into the slot 603 to achieve the installation and fixation of the protective cover 609. When disassembly is required, the protrusion on the locking plate 604 is pressed to unlock it. Then, with the cooperation of the top block 606 and the spring 607, the plug plate 608 pushes the protective cover 609 outward to complete the disassembly.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dustproof gearbox structure for a lawnmower, comprising a housing (1), characterized in that: The bottom of the outer wall of the outer shell (1) is connected to a bottom column (2), and the inner wall of the bottom column (2) is rotatably connected to a bevel gear rod (3). The top right side of the bevel gear rod (3) is meshed with a bevel gear rod (4). The interior of the outer shell (1) is provided with a heat dissipation mechanism (5), which is used to quickly dissipate the heat generated inside. The right side of the outer shell (1) is provided with an installation mechanism (6), which is used to facilitate the disassembly of the protective structure. The heat dissipation mechanism (5) includes a bevel gear rod three (501), the right side of which is meshed with the top left side of the bevel gear rod one (3). A gas collection hood (502) is fixedly connected to the left side of the outer shell (1). The left end of the bevel gear rod three (501) passes through the right side of the gas collection hood (502) and is fixedly connected to a fan (503). Connecting pipes (504) are provided on both the left and right sides of the inner wall of the outer shell (1). Multiple air ducts (505) are connected between adjacent connecting pipes (504). All the outer walls of the outer shell are opened with air holes (506). The top of the outer wall of the connecting pipe (504) on the left side is connected to an exhaust pipe (509). The other end of the exhaust pipe (509) passes through the inner wall of the outer shell (1) and is connected to the top of the outer wall of the air collection hood (502). The top of the outer wall of the connecting pipe (504) on the right side is connected to an air inlet pipe (508). The other end of the air inlet pipe (508) is connected to an air inlet (507). The inner wall of the air inlet (507) is provided with a filter assembly. The inner wall of the outer shell (1) is fixedly connected with multiple heat sinks (510).

2. The dustproof gearbox structure for a lawnmower according to claim 1, characterized in that: The installation mechanism (6) includes a fixing ring (601). The outer wall of the fixing ring (601) is fixedly connected to the right side of the outer wall of the outer shell (1). The right side of the fixing ring (601) is provided with a first insertion groove (602). The upper and lower sides of the outer wall of the fixing ring (601) are provided with a slot (603). The right side of the fixing ring (601) is provided with a second insertion groove (605). The inner walls of the two first insertion grooves (602) are slidably connected with a locking plate (604). The inner walls of the two second insertion grooves (605) are slidably connected with a top block (606). The left side of the two top blocks (606) is fixedly connected with a spring (607). The right side of the two locking plates (604) is fixedly connected with a protective cover (609). The left side of the protective cover (609) is fixedly connected with a plug plate (608).

3. The dustproof gearbox structure for a lawnmower according to claim 1, characterized in that: The filter assembly includes a filter screen (511), the outer wall of which is fixedly connected to the top of the inner wall of the air inlet (507).

4. The dustproof gearbox structure for a lawnmower according to claim 2, characterized in that: The installation mechanism (6) also includes two handles (610), and the adjacent sides of the two handles (610) are fixedly connected to the front and rear sides of the outer wall of the protective cover (609).

5. The dustproof gearbox structure for a lawnmower according to claim 1, characterized in that: A limiting ring (7) is fixedly connected to the top of the outer wall of the outer shell (1), and multiple reinforcing plates (8) are fixedly connected to the left side of the outer shell (1).

6. The dustproof gearbox structure for a lawnmower according to claim 1, characterized in that: The bottom of the base column (2) is fixedly connected to a base (9), and a connecting plate (15) is fixedly connected to the right side of the outer wall of the base (9).

7. The dustproof gearbox structure for a lawnmower according to claim 6, characterized in that: The front side of the connecting plate (15) is provided with a screw hole (12), and a bolt (13) is threaded inside the screw hole (12). A sealing ring (14) is fixedly connected to the front end of the outer wall of the bolt (13).

8. The dustproof gearbox structure for a lawnmower according to claim 1, characterized in that: A mounting base (10) is fixedly connected to the front side of the outer wall of the bottom column (2), and a controller (11) is fixedly connected to the front side of the mounting base (10).

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