Automatic pay-off device of mower

Abstract

The utility model relates to the technical field of mowers, and discloses an automatic pay-off device of a mower, which comprises a connecting plate, the lower surface of the connecting plate is fixedly connected with a driving motor, an output shaft of the driving motor is fixedly connected with a mounting cover, a mounting bottom plate is mounted in the mounting cover, the interior of the mounting bottom plate is hollow, and the lower surface of the connecting plate is fixedly connected with the driving motor. A winding roller is rotationally connected into the mounting bottom plate, the middle section of a rope body is clamped into a second clamping groove, then the two ends of the rope body are clamped into two first clamping grooves correspondingly, then a worm is rotated to drive a worm wheel to rotate, and finally mounting of the nylon rope body is achieved. The automatic pay-off device solves the problems of low rope body replacement efficiency and complexity of existing automatic pay-off devices of some mowers, the rope body installation stability is guaranteed, workers do not need to tighten and wind the rope bodies at the same time, the strength of the workers during rope body installation is relieved, and the labor intensity of the workers is reduced. Meanwhile, due to the self-locking performance of the worm gear and the worm, the rope body is prevented from loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of lawn mowers, in particular to an automatic line-releasing device for lawn mowers. Background Art

[0002] A lawn mower is a commonly used electric tool, mainly used for mowing lawns and other operations. The mowing device is divided into two types: a blade and a wire box. The wire box uses the cutting force generated by the cutting wire when it rotates at high speed to mow the grass.

[0003] The automatic wire-releasing device used in some existing lawn mowers that cut grass with nylon ropes will become shorter, thinner and weaker after a long period of high-speed rotation and friction. The rope needs to be replaced frequently when mowing is carried out frequently. However, some existing wire-releasing devices still have certain shortcomings in actual use. For example, when installing the nylon rope, it is necessary to ensure that the nylon rope is tightly wound around the winding roller, otherwise the rope may fall off during the installation process, thereby affecting the installation efficiency of the wire-releasing device by the staff. The existing method of ensuring that the nylon rope is tightly wound around the surface of the roller is usually to manually tighten the nylon rope when winding it around the roller, which is cumbersome and laborious in actual operation. If it is loose, the nylon rope may be thrown out by centrifugal force during mowing, and the stability and safety are relatively low, which indirectly reduces the installation efficiency of the wire-releasing device by the staff. In view of this, we propose an automatic wire-releasing device for a lawn mower to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides an automatic wire-releasing device for a lawn mower, which solves the problem that the automatic wire-releasing devices for some existing lawn mowers have low efficiency and are complicated in replacing the rope body.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic line-releasing device for a lawn mower, comprising a connecting plate, a driving motor is fixedly connected to the lower surface of the connecting plate, a mounting cover is fixedly connected to the output shaft of the driving motor, a mounting base plate is mounted inside the mounting cover, the interior of the mounting base plate is hollow, a winding roller is rotatably connected to the interior of the mounting base plate, the upper end of the winding roller rotates and passes through the interior of the mounting base plate, a worm gear is arranged inside the mounting base plate, the worm gear is sleeved on the outer surface of the winding roller, a worm is meshedly connected to the outer surface of the worm gear, and the worm is rotatably connected to the The front end of the worm rotates and passes through the mounting base plate inside the mounting base plate, an annular groove is provided on the upper surface of the mounting base plate, the annular groove is connected to the inside of the mounting base plate, a connecting rod is slidably connected to the inside of the annular groove, the lower end of the connecting rod is fixedly connected to the worm gear, a partition plate is rotatably sleeved on the outer surface of the winding roller, a fixed plate is fixedly sleeved on the outer surface of the winding roller, the partition plate is located between the fixed plate and the mounting base plate, the upper end of the connecting rod is fixedly connected to the lower surface of the partition plate, a second slot is provided on the surface of the partition plate, and two first slots are provided on the outer surface of the fixed plate.

[0008] Preferably, two wire-through holes are provided on the surface of the mounting cover, grooves are provided on the inner walls on both sides of the wire-through holes, and rollers are rotatably connected inside the grooves.

[0009] Preferably, a fixed block is fixedly connected to the upper surface of the connecting plate, the shape of the fixed block is a concave shape, a rotating rod is rotatably connected to the inside of the fixed block, a cavity is provided inside the side wall of the fixed block, the rotating rod rotates and penetrates into the interior of the fixed block, and a fixed rod is sleeved on the outer surface of the rotating rod.

[0010] Preferably, a threaded rod is provided on the outside of the fixed block, the threaded rod threadably penetrates into the interior of the fixed block, one end of the threaded rod located inside the fixed block is fixedly connected to a friction block, and the friction block contacts the side of the rotating rod.

[0011] Preferably, a fixed protective plate is fixedly connected to the lower surface of the connecting plate, a movable protective plate is arranged on the lower side of the connecting plate, an annular sliding groove extending to the outside is opened inside the fixed protective plate, and the movable protective plate is slidably connected inside the annular sliding groove.

[0012] Preferably, two first magnets are arranged on the surface of the fixed protective plate, and a second magnet is arranged on the upper surface of the movable protective plate, and the first magnet and the second magnet have opposite poles.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides an automatic line-releasing device for a lawn mower, which has the following beneficial effects:

[0015] 1. The automatic line-releasing device of the lawn mower clamps the middle section of the rope body inside the second clamping groove, and then clamps the two ends of the rope body inside the two first clamping grooves respectively, and then drives the worm wheel to rotate by rotating the worm, so as to finally realize the installation of the nylon rope body, thereby solving the problem that the replacement efficiency of the rope body of the automatic line-releasing device of some existing lawn mowers is low and cumbersome, and ensures the stability of the rope body installation. There is no need for the staff to tighten and wind at the same time, which reduces the intensity of the staff when installing the rope body. At the same time, the self-locking property of the worm wheel and the worm also avoids the loosening of the rope body, further ensures the stability of the rope body, and indirectly improves the installation efficiency of the automatic line-releasing device, which is highly practical and easy to operate.

[0016] 2. The automatic line-releasing device of the lawn mower reduces the friction between the rope body and the mounting cover by setting the roller, thereby increasing the service life of the rope body and reducing the wear of the rope body.

[0017] 3. The automatic line-releasing device of the lawn mower improves the safety of the device by shielding the rotating area of ​​the mowing rope, thereby avoiding the situation where the rope hits people. At the same time, setting the fixed protective plate and the movable protective plate to transparent material also makes it easier for staff to check the mowing situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of an automatic line-releasing device for a lawn mower according to the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the installation base plate of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the installation base plate of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the installation cover of the utility model;

[0022] Figure 5 This is a structural schematic diagram of a fixed protective plate of the utility model;

[0023] Figure 6 This is a structural schematic diagram of the fixed block of the utility model;

[0024] Figure 7 It is a structural schematic diagram of the rotating rod of the utility model.

[0025] In the figure: 1. connecting plate; 2. driving motor; 3. mounting cover; 4. mounting base plate; 5. winding roller; 6. worm gear; 7. worm; 8. annular groove; 9. connecting rod; 10. partition plate; 11. fixing plate; 12. first slot; 13. second slot; 14. wire hole; 15. groove; 16. roller; 17. fixing block; 18. rotating rod; 19. fixing rod; 20. threaded rod; 21. friction block; 22. second magnet; 23. fixed protective plate; 24. movable protective plate; 25. annular sliding groove; 26. first magnet. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 7The utility model provides a technical solution: an automatic line-releasing device for a lawn mower, comprising a connecting plate 1, a driving motor 2 is fixedly connected to the lower surface of the connecting plate 1, a mounting cover 3 is fixedly connected to the output shaft of the driving motor 2, a mounting base plate 4 is mounted inside the mounting cover 3, the interior of the mounting base plate 4 is hollow, a winding roller 5 is rotatably connected to the interior of the mounting base plate 4, the upper end of the winding roller 5 rotates and penetrates the interior of the mounting base plate 4, a worm gear 6 is arranged inside the mounting base plate 4, the worm gear 6 is sleeved on the outer surface of the winding roller 5, a worm 7 is meshedly connected to the outer surface of the worm gear 6, and the worm 7 is rotatably connected to the interior of the mounting base plate 4, The front end of the worm 7 rotates and passes through the mounting base plate 4. The upper surface of the mounting base plate 4 is provided with an annular groove 8. The annular groove 8 is connected to the inside of the mounting base plate 4. The inside of the annular groove 8 is slidably connected with a connecting rod 9. The lower end of the connecting rod 9 is fixedly connected to the worm wheel 6. The outer surface of the winding roller 5 is rotatably sleeved with a partition plate 10. The outer surface of the winding roller 5 is fixedly sleeved with a fixed plate 11. The partition plate 10 is located between the fixed plate 11 and the mounting base plate 4. The upper end of the connecting rod 9 is fixedly connected to the lower surface of the partition plate 10. The surface of the partition plate 10 is provided with a second card groove 13. The outer surface of the fixed plate 11 is provided with two first When the staff needs to replace the nylon rope, first remove the mounting cover 3 and the mounting base 4, then fold the rope body in half, and then clamp the middle section of the rope body inside the second slot 13, and then clamp the two ends of the rope body inside the two first slots 12 respectively, and then drive the worm wheel 6 to rotate by rotating the worm 7, and drive the connecting rod 9 to slide inside the annular groove 8 by the rotation of the worm wheel 6, and drive the partition plate 10 to rotate by the movement of the connecting rod 9. At this time, because the middle section of the rope body is stuck in the second slot 13, the rotation of the partition plate 10 will drive the rope body to be entangled under the partition of the partition plate 10. It is wound around the surface of the winding roller 5, and the two ends of the rope are restricted by the first clamping groove 12, so the rope will not be displaced, and the installation of the nylon rope is finally realized. The above structure solves the problem that the automatic line-releasing device of some existing lawn mowers has low efficiency and is cumbersome to replace the rope, ensures the stability of the rope installation, and does not require the staff to tighten and wind at the same time, which reduces the strength of the staff when installing the rope. At the same time, the self-locking property of the worm wheel 6 and the worm 7 also avoids the loosening of the rope, further ensures the stability of the rope, and indirectly improves the installation efficiency of the automatic line-releasing device, with high practicality and simple operation.

[0028] Furthermore, two wire passing holes 14 are provided on the surface of the mounting cover 3, and grooves 15 are provided on the inner walls on both sides of the wire passing holes 14. Rollers 16 are rotatably connected inside the grooves 15. After the staff installs the rope body on the mounting base plate 4, the mounting base plate 4 and the mounting cover 3 are connected, and then the rope body is passed through the two wire passing holes 14. At this time, the rope body will be located between the two rollers 16, and then the friction between the rope body and the mounting cover 3 is reduced by the setting of the rollers 16, thereby increasing the service life of the rope body and reducing the wear of the rope body.

[0029] Furthermore, a fixing block 17 is fixedly connected to the upper surface of the connecting plate 1, and the fixing block 17 is in a concave shape. A rotating rod 18 is rotatably connected to the inside of the fixing block 17. A cavity is arranged inside the side wall of the fixing block 17, and the rotating rod 18 rotates and penetrates into the inside of the fixing block 17. A threaded rod 20 is arranged outside the fixing block 17, and the threaded rod 20 threadably penetrates into the inside of the fixing block 17. One end of the threaded rod 20 located inside the fixing block 17 is fixedly connected to a friction block 21, and the friction block 21 contacts the side of the rotating rod 18. A fixing rod 19 is sleeved on the outer surface of the rotating rod 18. When the staff needs to adjust the angle between the fixing rod 19 and the connecting plate 1, by rotating the threaded rod 20, the threaded rod 20 will make the friction block 21 and the rotating rod 18 no longer contact, and the subsequent staff can adjust the angle of the fixing rod 19. After the adjustment is completed, the threaded rod 20 is reversed to make the friction block 21 and the rotating rod 18 closely contact again, and finally the angle adjustment is realized. The above structure improves the flexibility of the device, facilitates the adjustment of the cutting angle according to different usage conditions, and has high practicality.

[0030] Furthermore, a fixed protective plate 23 is fixedly connected to the lower surface of the connecting plate 1, and a movable protective plate 24 is arranged on the lower side of the connecting plate 1, both of which are made of transparent materials, and an annular sliding groove 25 extending to the outside is opened inside the fixed protective plate 23, and the movable protective plate 24 is slidably connected to the inside of the annular sliding groove 25, and two first magnets 26 are arranged on the surface of the fixed protective plate 23, and a second magnet 22 is arranged on the upper surface of the movable protective plate 24, and the first magnet 26 and the second magnet 22 are opposite poles to each other. The movable protective plate 24 slides inside the annular sliding groove 25 by the staff operating the handle on the surface of the movable protective plate 24, and finally the lower side of the connecting plate 1 is completely wrapped, and the movable protective plate 24 can be fixed by the first magnet 26 and the second magnet 22 later, and the safety of the device is improved by shielding the rotating area of ​​the mowing rope, thereby avoiding the situation that the rope hits people, and at the same time, setting the fixed protective plate 23 and the movable protective plate 24 to transparent materials is also convenient for the staff to check the mowing situation.

[0031] Working principle:

[0032] When the automatic line-releasing device of the lawn mower is in use, the mounting cover 3 and the mounting base plate 4 are first disassembled, and then the rope body is folded in half, and then the middle section of the rope body is clamped in the second clamping groove 13, and then the two ends of the rope body are clamped in the two first clamping grooves 12 respectively, and then the worm gear 6 is driven to rotate by rotating the worm 7, and the connecting rod 9 is driven to slide in the annular groove 8 by the rotation of the worm gear 6, and the partition plate 10 is driven to rotate by the movement of the connecting rod 9. At this time, because the middle section of the rope body is stuck in the second clamping groove 13, the rotation of the partition plate 10 will drive the rope body to be wound around the surface of the winding roller 5 under the partition of the partition plate 10, and the two ends of the rope body are restricted by the first clamping groove 12, so the rope body will not be displaced, and finally the installation of the nylon rope body is realized.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic line-releasing device for a lawn mower, comprising a connecting plate (1), characterized in that: The lower surface of the connecting plate (1) is fixedly connected to a driving motor (2), the output shaft of the driving motor (2) is fixedly connected to a mounting cover (3), a mounting base plate (4) is mounted inside the mounting cover (3), the interior of the mounting base plate (4) is hollow, a winding roller (5) is rotatably connected inside the mounting base plate (4), the upper end of the winding roller (5) rotates through the interior of the mounting base plate (4), a worm gear (6) is arranged inside the mounting base plate (4), the worm gear (6) is sleeved on the outer surface of the winding roller (5), a worm (7) is meshingly connected to the outer surface of the worm gear (6), the worm (7) is rotatably connected to the interior of the mounting base plate (4), the rear end of the worm (7) rotates through the mounting base plate (4), the mounting base plate (4) is provided with a worm gear (6), the worm gear (6) is sleeved on the outer surface of the winding roller (5), a worm (7) is meshingly connected to the outer surface of the worm gear (6), the worm (7) is rotatably connected to the interior of the mounting base plate (4), the rear end of the worm gear (7) rotates through the mounting base plate (4), the mounting base plate (4) is provided with a worm gear (6), the worm gear (6) is sleeved on the outer surface of the winding roller (5), the outer surface of the worm gear (6) is meshingly connected to the worm gear (7), the worm gear ... An annular groove (8) is provided on the upper surface of the base plate (4), the annular groove (8) is connected to the inside of the mounting base plate (4), a connecting rod (9) is slidably connected to the inside of the annular groove (8), the lower end of the connecting rod (9) is fixedly connected to the worm gear (6), a partition plate (10) is rotatably sleeved on the outer surface of the winding roller (5), a fixed plate (11) is fixedly sleeved on the outer surface of the winding roller (5), the partition plate (10) is located between the fixed plate (11) and the mounting base plate (4), the upper end of the connecting rod (9) is fixedly connected to the lower surface of the partition plate (10), a second slot (13) is provided on the surface of the partition plate (10), and two first slots (12) are provided on the outer surface of the fixed plate (11).

2. The automatic line-releasing device for a lawn mower according to claim 1, characterized in that: The surface of the mounting cover (3) is provided with two wire-through holes (14), inner walls on both sides of the wire-through holes (14) are provided with grooves (15), and rollers (16) are rotatably connected inside the grooves (15).

3. The automatic line-releasing device for a lawn mower according to claim 1, characterized in that: A fixing block (17) is fixedly connected to the upper surface of the connecting plate (1), the fixing block (17) is in a concave shape, a rotating rod (18) is rotatably connected inside the fixing block (17), a cavity is provided inside the side wall of the fixing block (17), the rotating rod (18) rotates and penetrates into the inside of the fixing block (17), and a fixing rod (19) is sleeved on the outer surface of the rotating rod (18).

4. The automatic line-releasing device for a lawn mower according to claim 3, characterized in that: A threaded rod (20) is disposed outside the fixing block (17), and one end of the threaded rod (20) is threadedly inserted into the interior of the fixing block (17).

5. The automatic line-releasing device for a lawn mower according to claim 4, characterized in that: One end of the threaded rod (20) located inside the fixed block (17) is fixedly connected to a friction block (21), and the friction block (21) is in contact with the side surface of the rotating rod (18).

6. The automatic line-releasing device for a lawn mower according to claim 3, characterized in that: A fixed protective plate (23) is fixedly connected to the lower surface of the connecting plate (1), and a movable protective plate (24) is provided on the lower side of the connecting plate (1).

7. The automatic line-releasing device for a lawn mower according to claim 6, characterized in that: The fixed protection plate (23) is provided with an annular sliding groove (25) extending to the outside, and the movable protection plate (24) is slidably connected inside the annular sliding groove (25).

8. The automatic line-releasing device for a lawn mower according to claim 7, characterized in that: Two first magnets (26) are arranged on the surface of the fixed protection plate (23), and a second magnet (22) is arranged on the upper surface of the movable protection plate (24); the first magnet (26) and the second magnet (22) have opposite poles.

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