Rear axle adjusting mechanism capable of conveniently adjusting chain tension for sweeper

Abstract

The rear axle adjusting mechanism comprises a chassis and first frame bodies, the first frame bodies are symmetrically installed on the top of the chassis, a third frame body is movably installed on the inner sides of the first frame bodies, a pipe body is installed on the top of the third frame body in a penetrating mode, and the pipe body is movably installed on the inner side of the first frame body. A first rotating rod is movably installed in the pipe body, first gears are symmetrically installed on the two sides of the first rotating rod, and a chain body is installed on the outer sides of the first gears. When the tensioning degree of the chain body is reduced, the first bolt is rotated to drive the push block to move backwards, and then the third frame body, the pipe body, the first rotating rod and the first gear are driven to move backwards, so that the tensioning degree of the chain body is increased.

Description

Technical Field

[0001] The invention relates to the technical field of sweeping vehicles, and in particular to a rear axle adjustment mechanism for sweeping vehicles for conveniently adjusting chain tension. Background Art

[0002] There are two ways to place the axle drive of a sweeper: upper and lower. The lower axle will greatly reduce the volume of the trash can and because the chassis of the sweeper is low, when the parts are damaged, it will cause great inconvenience for personnel to repair. The transmission method of the upper axle currently uses a chain to drive the rear wheel hub. This method does not take up the space of the trash can, but the chain drive method will have the problem of tension.

[0003] The defects of existing sweepers are: 1. The prior art KR101081976B1 discloses a bicycle seat heating device, which does not have a structure for adjusting the tightness of the chain. When the chain is loose, the chain is easy to fall off, and it is not convenient to adjust the tightness of the chain. Therefore, a rear axle adjustment mechanism for conveniently adjusting the chain tension of a sweeper is needed to solve this problem.

[0004] 2. Prior art US20090038869A1 discloses an endless track vehicle with a light transmission system with reduced sprockets and chains. This technology does not have a structure that is convenient for replacing the chain. When the chain is damaged, the chain tension is too high to be convenient for removing the chain or installing a new chain. Therefore, a sweeper vehicle that can loosen the chain for removal and replacement and use a rear axle adjustment mechanism that can conveniently adjust the chain tension is needed to solve this problem.

[0005] 3. Prior art US20040033853A1 discloses a chain and sprocket drive system for a small all-terrain vehicle. This technology sets the driving mechanism under the chassis, which will occupy the space of the trash bin below and reduce the volume of the trash bin. Therefore, a sweeper with a driving mechanism set above the chassis and capable of adjusting the chain tightness is needed to solve this problem with a rear axle adjustment mechanism that can conveniently adjust the chain tension.

[0006] 4. The prior art CN105625233B discloses an automatic obstacle avoidance sweeper. This technology does not have a structure for adjusting the tightness of the chain. When the chain is loose, the transmission efficiency of the chain is reduced, resulting in a waste of kinetic energy. Therefore, a sweeper that can avoid the reduction of the kinetic energy transmitted by the chain due to the looseness of the chain is needed, and a rear axle adjustment mechanism that can conveniently adjust the tension of the chain is used to solve this problem. Summary of the invention

[0007] One purpose of the present application is to provide a rear axle adjustment mechanism for a sweeper vehicle that can conveniently adjust the chain tension, which can solve the technical problems raised in the prior art.

[0008] To achieve the above object, the present invention provides the following technical solution: a rear axle adjustment mechanism for a sweeping vehicle for conveniently adjusting the tension of a chain, comprising a chassis and a frame body 1, wherein the frame body 1 is symmetrically mounted on the top of the chassis, and a frame body 3 is movably mounted on the inner side of the frame body 1; A tube body is installed through the top of the frame body three, a rotating rod one is movably installed inside the tube body, gears one are symmetrically installed on both sides of the rotating rod one, and a chain body is installed on the outer side of the gear one.

[0009] Preferably, a gear 2 is installed on the outer side of the rotating rod 1.

[0010] Preferably, a plate body 2 is installed on the back of the tube body, a motor is installed on the back of the plate body 2, a gear 3 is installed on the output end of the motor, and the gear 3 is meshed with the gear 2.

[0011] Preferably, a bolt one is installed through the front side of the frame one, and the bolt one passes through the front inner wall of the frame one, a push block is installed at one end of the bolt one, a movable ring is movably installed on the outer side of the push block, and the back side of the movable ring is connected to the front side of the frame three.

[0012] Preferably, a through opening is symmetrically opened through the top of the chassis, and the chain body is located on the inner side of the through opening.

[0013] Preferably, a plate body three is symmetrically installed at the bottom of the chassis, a bearing one is installed through one side of the plate body three, a rotating rod four is movably installed on the inner side of the bearing one, a gear four is installed on the outer side of the rotating rod four, and the outer side of the gear four is connected to the inner wall of one end of the chain body.

[0014] Preferably, a ring body is installed at one end of the tube body, a second bearing is installed on the inner side of the ring body, and the second bearing is located on the outer side of the first rotating rod.

[0015] Preferably, wheels are symmetrically mounted on both sides of the rotating rod four, and the wheels are located on both sides of the plate body three.

[0016] Preferably, the method of using the rear axle adjustment mechanism for conveniently adjusting the chain tension of the sweeping vehicle is as follows: S1, the motor drives gear 3 to rotate, which in turn drives gear 2 to rotate, thereby driving rotating rod 1 and gear 1 to rotate, and the rotation of gear 1 drives the chain body to rotate; S2, the chain body rotates to drive the gear 4 to rotate, the gear 4 rotates to drive the rotating rod 4 to rotate, thereby driving the wheel to rotate; S3. When the tension of the chain body decreases, the first bolt is rotated to drive the push block to move backward, thereby driving the frame body three, the tube body, the rotating rod one and the gear one to move backward, thereby increasing the tension of the chain body.

[0017] Preferably, the step S3 further includes the following steps: S31. When the chain body needs to be replaced, the push block is driven forward by rotating bolt 1, thereby driving frame 3, tube body, rotating rod 1 and gear 1 to move forward, thereby reducing the tension of the chain body and facilitating disassembly and replacement of the chain body.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, when the tension of the chain body decreases, the first rotating bolt drives the push block to move backward, thereby driving the frame body 3, the tube body, the rotating rod 1 and the gear 1 to move backward, thereby increasing the tension of the chain body, making it easy for the sweeper to adjust the tension of the chain body with the rear axle adjustment mechanism for conveniently adjusting the tension of the chain.

[0019] 2. When the chain body needs to be replaced, the push block is driven forward by rotating bolt 1, thereby driving frame 3, tube body, rotating rod 1 and gear 1 to move forward, thereby reducing the tension of the chain body and facilitating disassembly and replacement of the chain body.

[0020] 3. The present invention adjusts the tightness of the chain body through bolts, and can adjust the tightness of the chain body within a limited space. At the same time, the motor is arranged above the chassis, which is convenient for people to repair the motor. The motor is arranged above the chassis and does not occupy the space of the trash can, thereby increasing the capacity of the trash can.

[0021] 4. The present invention keeps the chain body in a tensioned state by adjusting the tightness of the chain body, thereby avoiding the low transmission efficiency caused by the looseness of the chain body and ensuring the high efficiency of the chain body transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present invention; Figure 2 A side sectional view of the frame of the present invention; Figure 3 It is a front cross-sectional view of a frame of the present invention; Figure 4 It is a schematic diagram of the structure of the frame body 1, the tube body and the rotating rod 4 of the present invention; Figure 5 It is a schematic diagram of the tube body and motor structure of the present invention; Figure 6 It is a schematic diagram of the frame and tube structure of the present invention; Figure 7 It is a schematic diagram of the tube structure of the present invention; Figure 8 It is a schematic diagram of the third structure of the plate body of the present invention; Fig. 9The figure is a flow chart of the method for using the present invention.

[0023] In the figure: 1, chassis; 3, frame body 1; 4, bolt 1; 5, push block; 6, movable ring; 10, frame body 3; 11, tube body; 12, rotating rod 1; 13, gear 1; 14, gear 2; 15, plate body 2; 16, motor; 17, gear 3; 18, chain body; 19, through port; 28, plate body 3; 29, rotating rod 4; 30, wheel; 31, gear 4; 32, bearing 1; 33, ring body; 34, bearing 2. DETAILED DESCRIPTION

[0024] 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 described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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.

[0027] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , an embodiment provided by the present invention: a rear axle adjustment mechanism for conveniently adjusting chain tension for a sweeping vehicle; The invention comprises a chassis 1, a frame 3 and a frame 3 10, wherein the frame 3 is symmetrically installed on the top of the chassis 1, the frame 3 10 is movably installed on the inner side of the frame 3, a tube 11 is installed through the top of the frame 3 10, a rotating rod 12 is movably installed inside the tube 11, gears 13 are symmetrically installed on both sides of the rotating rod 12, a chain body 18 is installed on the outer side of the gear 13, a bolt 4 is installed through the front side of the frame 3, and the bolt 4 penetrates the inner wall of the front side of the frame 3, a push block 5 is installed at one end of the bolt 4, a movable ring 6 is movably installed on the outer side of the push block 5, and the back side of the movable ring 6 is connected to the front side of the frame 3 10, a through hole 19 is symmetrically opened through the top of the chassis 1, and the chain body 18 is located on the inner side of the through hole 19, and the chassis 1 can provide installation for other components of the device. The movable ring 6 plays the role of movably connecting the push block 5 and the frame 3 10. The frame 3 10 can drive the tube 11 to move forward and backward by moving forward and backward. The tube 11 can provide support for the rotating rod 12. The rotating rod 12 can rotate inside the tube 11, thereby driving the gear 13 to rotate. The gear 13 can drive the chain body 18 to rotate by rotating. The rotation of the chain body 18 can drive the gear four 31 to rotate. The through hole 19 can provide a movable space for the chain body 18.

[0028] See also Figure 1 , Figure 4 and Figure 8 , an embodiment provided by the present invention: a rear axle adjustment mechanism for conveniently adjusting chain tension for a sweeping vehicle; It includes a plate body three 28 and a rotating rod four 29. The plate body three 28 is symmetrically installed on the bottom of the chassis 1. A bearing one 32 is installed through one side of the plate body three 28. A rotating rod four 29 is movably installed on the inner side of the bearing one 32. A gear four 31 is installed on the outer side of the rotating rod four 29, and the outer side of the gear four 31 is connected to the inner wall of one end of the chain body 18. Wheels 30 are symmetrically installed on both sides of the rotating rod four 29, and the wheels 30 are located on both sides of the plate body three 28. The plate body three 28 can provide an installation position for the bearing one 32, and the bearing one 32 can provide an installation position for the rotating rod four 29, while reducing the friction force when the rotating rod four 29 rotates. The rotating rod four 29 can rotate, and then can drive the wheel 30 to rotate. The rotation of the wheel 30 can drive the chassis 1 to move, and the gear four 31 can drive the rotating rod four 29 to rotate by rotating.

[0029] See also Figure 1 and Figure 5, an embodiment provided by the present invention: a rear axle adjustment mechanism for conveniently adjusting chain tension for a sweeping vehicle; It includes a ring body 33, one end of the tube body 11 is installed with the ring body 33, the inner side of the ring body 33 is installed with a bearing 2 34, and the bearing 2 34 is located on the outer side of the rotating rod 12. The ring body 33 can provide an installation position for the bearing 2 34, and the bearing 2 34 can reduce the friction when the rotating rod 12 rotates.

[0030] See also Figure 1 and Figure 7 , an embodiment provided by the present invention: a rear axle adjustment mechanism for conveniently adjusting chain tension for a sweeping vehicle; It includes gear 2 14 and plate 2 15. Gear 2 14 is installed on the outer side of rotating rod 12, plate 2 15 is installed on the back side of tube body 11, motor 16 is installed on the back side of plate 2 15, gear 3 17 is installed on the output end of motor 16, and gear 3 17 is meshed with gear 2 14. Gear 2 14 can drive rotating rod 12 to rotate by rotating. Plate 2 15 can provide an installation position for motor 16. Motor 16 can convert electrical energy into kinetic energy, thereby driving gear 3 17 to rotate, and gear 3 17 can drive gear 2 14 to rotate by rotating.

[0031] The method of using the rear axle adjustment mechanism for conveniently adjusting the chain tension of a sweeper is as follows: S1, the motor 16 drives the gear 3 17 to rotate, and then drives the gear 2 14 to rotate, thereby driving the rotating rod 1 12 and the gear 1 13 to rotate, and the rotation of the gear 1 13 drives the chain body 18 to rotate; S2, the chain body 18 rotates to drive the gear 4 31 to rotate, the gear 4 31 rotates to drive the rotating rod 4 29 to rotate, thereby driving the wheel 30 to rotate; S3. When the tension of the chain body 18 decreases, the rotating bolt 14 drives the push block 5 to move backward, thereby driving the frame body 3 10, the tube body 11, the rotating rod 12 and the gear 13 to move backward, thereby increasing the tension of the chain body 18.

[0032] S3 also includes the following steps: S31. When the chain body 18 needs to be replaced, the push block 5 is driven forward by rotating the bolt 14, thereby driving the frame 3 10, the tube 11, the rotating rod 12 and the gear 13 to move forward, thereby reducing the tension of the chain body 18, making it easier to disassemble and replace the chain body 18.

[0033] Working principle: Before using the rear axle adjustment mechanism for conveniently adjusting the chain tension of a sweeper, you should first check whether there are any problems that affect the use of the rear axle adjustment mechanism for conveniently adjusting the chain tension of a sweeper. The motor 16 drives the gear three 17 to rotate, and then drives the gear two 14 to rotate, thereby driving the rotating rod one 12 and the gear one 13 to rotate, the gear one 13 rotates to drive the chain body 18 to rotate, the chain body 18 rotates to drive the gear four 31 to rotate, the gear four 31 rotates to drive the rotating rod four 29 to rotate, thereby driving the wheel 30 to rotate. When the tension of the chain body 18 decreases, the bolt 4 is rotated to drive the push block 5 to move backward, and then the frame body 3 10, the tube body 11, the rotating rod 12 and the gear 13 are moved backward, so that the tension of the chain body 18 is increased. When the chain body 18 needs to be replaced, the bolt 4 is rotated to drive the push block 5 to move forward, and then the frame body 3 10, the tube body 11, the rotating rod 12 and the gear 13 are moved forward, so that the tension of the chain body 18 is reduced, which facilitates the disassembly and replacement of the chain body 18.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference signs in the claims should not be regarded as limiting the rights involved.

Claims

1. A rear axle adjustment mechanism for a sweeping vehicle for conveniently adjusting the chain tension, characterized in that: It comprises a chassis (1) and a frame body one (3), wherein the frame body one (3) is symmetrically mounted on the top of the chassis (1), and a frame body three (10) is movably mounted on the inner side of the frame body one (3); A tube body (11) is installed through the top of the frame body three (10), a rotating rod one (12) is movably installed inside the tube body (11), gears one (13) are symmetrically installed on both sides of the rotating rod one (12), and a chain body (18) is installed on the outer side of the gear one (13).

2. The rear axle adjustment mechanism for conveniently adjusting chain tension for a sweeping vehicle according to claim 1, characterized in that: A second gear (14) is installed on the outer side of the first rotating rod (12).

3. The rear axle adjustment mechanism for conveniently adjusting chain tension for a sweeping vehicle according to claim 1, characterized in that: A second plate body (15) is mounted on the back of the tube body (11), a motor (16) is mounted on the back of the second plate body (15), a third gear (17) is mounted on the output end of the motor (16), and the third gear (17) is meshed with the second gear (14).

4. The rear axle adjustment mechanism for conveniently adjusting chain tension for a sweeping vehicle according to claim 1, characterized in that: A bolt (4) is installed through the front of the frame body (3), and the bolt (4) passes through the inner wall of the front of the frame body (3). A push block (5) is installed at one end of the bolt (4). A movable ring (6) is movably installed on the outer side of the push block (5), and the back side of the movable ring (6) is connected to the front of the frame body (10).

5. The rear axle adjustment mechanism for conveniently adjusting chain tension for a sweeping vehicle according to claim 1, characterized in that: A through opening (19) is symmetrically opened through the top of the chassis (1), and the chain body (18) is located on the inner side of the through opening (19).

6. The rear axle adjustment mechanism for conveniently adjusting chain tension for a sweeping vehicle according to claim 1, characterized in that: A plate body 3 (28) is symmetrically mounted on the bottom of the chassis (1), a bearing 1 (32) is installed through one side of the plate body 3 (28), a rotating rod 4 (29) is movably mounted on the inner side of the bearing 1 (32), a gear 4 (31) is mounted on the outer side of the rotating rod 4 (29), and the outer side of the gear 4 (31) is connected to the inner wall of one end of the chain body (18).

7. The rear axle adjustment mechanism for conveniently adjusting chain tension for a sweeping vehicle according to claim 1, characterized in that: A ring body (33) is installed at one end of the tube body (11), a second bearing (34) is installed on the inner side of the ring body (33), and the second bearing (34) is located on the outer side of the first rotating rod (12).

8. The rear axle adjustment mechanism for conveniently adjusting chain tension for a sweeping vehicle according to claim 6, characterized in that: Wheels (30) are symmetrically mounted on both sides of the rotating rod four (29), and the wheels (30) are located on both sides of the plate body three (28).

9. A method for using a rear axle adjustment mechanism for conveniently adjusting chain tension for a sweeping vehicle according to any one of claims 1 to 8, characterized in that: The method of using the rear axle adjustment mechanism for conveniently adjusting the chain tension of the sweeper is as follows: S1, the motor (16) drives the gear three (17) to rotate, which in turn drives the gear two (14) to rotate, thereby driving the rotating rod one (12) and the gear one (13) to rotate, and the rotation of the gear one (13) drives the chain body (18) to rotate; S2, the chain body (18) rotates to drive the gear four (31) to rotate, the gear four (31) rotates to drive the rotating rod four (29) to rotate, thereby driving the wheel (30) to rotate; S3. When the tension of the chain body (18) decreases, the bolt 1 (4) is rotated to drive the push block (5) to move backward, thereby driving the frame 3 (10), the tube body (11), the rotating rod 1 (12) and the gear 1 (13) to move backward, thereby increasing the tension of the chain body (18).

10. The method for using the rear axle adjustment mechanism for conveniently adjusting chain tension of a sweeping vehicle according to claim 9, characterized in that: The S3 also includes the following steps: S31. When the chain body (18) needs to be replaced, the push block (5) is driven forward by rotating the bolt (4), thereby driving the frame body (10), the tube body (11), the rotating rod (12) and the gear (13) to move forward, thereby reducing the tension of the chain body (18), making it easier to disassemble and replace the chain body (18).

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