Mini-tiller structure with handrail height adjusting function

Abstract

The utility model belongs to the technical field of agricultural planting, and particularly relates to a mini-tiller structure with a handrail height adjusting function, which comprises a base and a connecting rod, and further comprises a fixing mechanism and a handle, a fixing block is slidably mounted on the side wall of the groove, where the gear is mounted, of the base and the handle, a protrusion is arranged on the side wall of the fixing block, mounting grooves are formed in the base and the handle, the protrusion on the side wall of the fixing block penetrates through the side walls of the mounting grooves, a cam is rotatably mounted on each mounting groove, and the cam is movably mounted on the base. A threaded cover and a clamping block are mounted on the mounting groove; the positions of the handle and the connecting rod are fixed through cooperation of a gear and a fixing block, so that the device can be suitable for different users, the adjusting efficiency of the user on the handle and the connecting rod is improved through arrangement of a clamping block rotationally installed on a threaded cover, and through arrangement of an extension sleeve slidably installed on the handle, the device is convenient to use. And the comfort level of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the agricultural planting technical field, concretely relates to a micro tiller structure with handrail height adjusting function. BACKGROUND

[0002] The micro tiller is powered by a small diesel engine or gasoline engine, has the characteristics of light weight, small size and simple structure, and due to the different height sizes of users, in order to ensure that the user has good comfort when using the micro tiller, an adjusting mechanism is arranged on the existing micro tiller to facilitate the user to adjust the height of the handrail of the micro tiller, and the existing adjusting mechanism adjusts the handrail through the cooperation of the fixing pin and the fixing hole, and the adjusting range of the handrail is limited by this adjusting mode, resulting in poor applicability of the adjusting mechanism. SUMMARY

[0003] The utility model provides a micro tiller structure with handrail height adjusting function to solve the problems in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a micro tiller structure with handrail height adjusting function, including base and connecting rod, still including fixed mechanism and handle, the both ends of base are respectively hinged with base and handle, the hinged shaft of fixed mechanism is installed with gear, the side wall of the groove of base and handle installation gear is slidably installed with fixed block, the side wall of fixed block is equipped with protruding, the installation groove is equipped on base and handle, the side wall protruding of fixed block penetrates the side wall of installation groove, the installation groove is rotatably installed with cam, the installation groove is threadedly installed with screw cover, the side wall recess of installation groove is installed with the clamping block matched with cam, the extension sleeve is slidably installed on handle, the plug block is installed on extension sleeve through spring, the side wall of handle is equipped with a plurality of plug slots matched with plug block, the pull block connected with plug block through pull wire is slidably installed on extension sleeve through spring telescopic rod.

[0005] Preferably, the clamping block is rotatably installed on the screw cover.

[0006] Preferably, the rod of pull rod is hinged on the hinged seat of pull rod through torsional spring shaft, and the hinged seat of pull rod is rotatably installed on the pull block.

[0007] Preferably, the groove of extension sleeve installation pull block is installed with pull rod on the side close to handle.

[0008] Preferably, the side wall of extension sleeve and installation pull block is equipped with recess matched with pull rod, and the side wall of pull rod is equipped with force slot.

[0009] Preferably, the side wall of the slot of the extension sleeve is provided with a supporting rod, the side wall of the plug-in block is provided with a groove matched with the supporting rod, and the pull wire connected with the plug-in block penetrates through the supporting rod.

[0010] Preferably, the handle is provided with a scale bar corresponding to the plug-in slot on the supporting rod of the extension sleeve.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses a handle and connecting rod position are fixed through the cooperation of gear and fixed block, makes the device can be applicable to different users, has improved the applicability of the device, through setting up the clamping block of rotation installation on the screw cover, the user installs and dismantles clamping block, improves the adjustment efficiency of user to handle and connecting rod, through setting up the extension sleeve of sliding installation on handle and the plug-in block and plug-in slot of cooperation, the user can adjust the overall length of handle, improves the comfort of user, through setting up the pull rod of installation on extension sleeve and pull block, the user moves pull block, through setting up the supporting rod on the side wall of the slot of installation plug-in block and the groove matched with the supporting rod, and the supporting rod guarantees that pull wire is not influenced by spring in the movement process, guarantees the adjustment effect of pull wire to the position of plug-in block. ACCURACY OF DRAWINGS

[0013] Figure 1 It is the structural schematic diagram of the utility model;

[0014] Figure 2 It is the structural schematic diagram of the cooperation of gear and fixed block in the utility model;

[0015] Figure 3 It is the side view cutaway structural schematic diagram of the installation of fixed block in the utility model;

[0016] Figure 4 It is the structural schematic diagram of the installation of cam in the utility model;

[0017] Figure 5 It is the structural schematic diagram of handle in the utility model;

[0018] Figure 6 It is the structural schematic diagram of the installation of plug-in block in the utility model;

[0019] Figure 7 It is the structural schematic diagram of scale bar set up on handle in the utility model.

[0020] In the drawing: 1, base 2, fixed mechanism 21, gear 22, fixed block 23, cam 24, screw cover 25, clamping block 26, installation slot 3, handle 31, extension sleeve 32, plug-in block 33, plug-in slot 34, pull block 35, pull rod 4, connecting rod. DETAILED DESCRIPTION

[0021] Please refer to Figures 1-7 The utility model provides the following technical scheme: a micro tiller structure with handrail height adjusting function, including base 1 and connecting rod 4, still including fixed mechanism 2 and handle 3, the both ends of base 1 are hinged with base 1 and handle 3 respectively, the hinging shaft of fixed mechanism 2 is installed with gear 21, the side wall of the groove of base 1 and handle 3 installation gear 21 is slidably installed with fixed block 22, the side wall of fixed block 22 is equipped with protrusion, and the side wall of installation groove 26 is equipped on base 1 and handle 3, the side wall protrusion of fixed block 22 penetrates the side wall of installation groove 26, the cam 23 is rotatably installed on installation groove 26, the threaded cover 24 is installed on installation groove 26 by screw thread, the recess of the side wall of installation groove 26 is installed with the clamping block 25 matched with cam 23, the extension sleeve 31 is slidably installed on handle 3, the plug block 32 is installed on extension sleeve 31 by spring, the side wall of handle 3 is equipped with a plurality of the insertion slot 33 matched with plug block 32, and the pull block 34 connected with plug block 32 through pull line is slidably installed on extension sleeve 31 through spring extension and contraction link.

[0022] The base 1 is used for fixing the device on the micro tiller, the handle 3 is used for the user to hold the device, the connecting rod 4 is used for connecting the base 1 and the handle 3, the mounting mode of the base 1 and the handle 3 ensures that the user can adjust the height of the handle 3 by rotating the connecting rod 4, the user can adjust the inclination angle of the handle 3 by rotating the handle 3, the handle 3 can be quickly moved to the appropriate position by rotating the handle 3 and the connecting rod 4, and the comfort of the user is improved, the fixing mechanism 2 is used for fixing the connection between the base 1 and the connecting rod 4 and the handle 3 and the connecting rod 4, and the stability of the handle 3 and the connecting rod 4 during use of the device is ensured, a gear 21 is arranged on the rotating shaft of the connecting rod 4, a fixing block 22 is used for fixing the gear 21, a cam 23 is used for fixing the fixing block 22, the fixing block 22 fixed by the cam 23 plays a role in fixing the gear 21, the fixing block 22 is slidingly installed on the side wall of the groove for installing the gear 21, the side wall of the fixing block 22 is inclined, when the fixing of the fixing block 22 by the cam 23 is released, the inclined side wall of the fixing block 22 ensures that the gear 21 can smoothly push the fixing block 22 during rotation, ensuring that the rotation of the handle 3 and the connecting rod 4 will not be hindered, when the top of the cam 23 is in contact with the protrusion of the side wall of the fixing block 22, the fixing block 22 is pushed by the cam 23 to a position matched with the gear 21, at this time the gear 21 is fixed by the fixing block 22, when the top of the cam 23 is rotated away from the protrusion of the side wall of the fixing block 22 by the user, the fixing of the fixing block 22 is released, at this time the fixing block 22 can be smoothly pushed during the rotation of the gear 21, ensuring that the rotation of the handle 3 and the connecting rod 4 will not be hindered, a clamping block 25 is used for fixing the cam 23, a recess is arranged on the side wall of the clamping block 25 and matched with the cam 23, when the clamping block 25 is installed in the installation groove 26, the cam 23 enters the recess in the side wall of the clamping block 25, the clamping block 25 enters the recess in the side wall of the installation groove 26, at this time the clamping block 25 is fixed, the fixed clamping block 25 can fix the cam 23, the fixed cam 23 ensures the stability of the fixing block 22 during use of the device, a threaded cover 24 is installed in the installation groove 26 through threads, the installation mode of the threaded cover 24 ensures the stability of the threaded cover 24 after being installed in the installation groove 26, the diameter of the installation groove 26 is larger than that of the cam 23, which facilitates the user to rotate the cam 23, an extension sleeve 31 is slidingly installed on the handle 3, the user can adjust the overall length of the handle 3 and the extension sleeve 31 by sliding the extension sleeve 31, ensuring that the user and the micro tiller can have a suitable distance after the position of the handle 3 is adjusted, the side wall of the groove for installing the handle 3 is provided with a protrusion, the side wall of the handle 3 is provided with a recess matched with the protrusion of the side wall of the extension sleeve 31, the cooperation of the recess in the side wall of the handle 3 and the protrusion matched therewith plays a role in limiting, ensuring that the extension sleeve 31 will not be separated from the handle 3 during movement, and ensuring the stability of the extension sleeve 31 during movement,The extension sleeve 31 is fixed on the handle 3 through the cooperation of the plug block 32 and the plug slot 33, which ensures the stability of the extension sleeve 31 after being installed on the handle 3. The side wall of the handle 3 is provided with a plurality of plug slots 33, which facilitates the user to adjust the position of the extension sleeve 31. The plug block 32 is connected with the pull block 34 through a pull wire. When the user pulls the pull block 34, the plug block 32 is moved with the pull block 34. The moving plug block 32 is separated from the plug slot 33 matched therewith, and the fixation of the extension sleeve 31 is released. At this time, the user can adjust the position of the extension sleeve 31. The corner of the slot in the extension sleeve 31 penetrated by the pull wire is provided with a roller, which reduces the abrasion of the pull wire in the moving process and prolongs the service life of the pull wire. The spring arranged on the plug block 32 and the spring telescopic rod arranged on the pull block 34 ensure that the plug block 32 and the pull block 34 can quickly return to the original position after the user releases the pull block 34, so as to realize the quick fixation of the device to the moved extension sleeve 31 and facilitate the user to adjust the position of the extension sleeve 31.

[0023] Specifically, the clamping block 25 is rotatably installed on the threaded cover 24.

[0024] The side wall of the threaded cover 24 is provided with an annular protrusion with a T-shaped cross section, and the clamping block 25 is provided with a groove matched with the protrusion of the side wall of the threaded cover 24. The cooperation of the groove in the side wall of the clamping block 25 and the protrusion of the side wall of the threaded cover 24 plays a limiting role, which ensures the stability of the clamping block 25 after being installed on the threaded cover 24. The clamping block 25 is rotatably installed on the threaded cover 24, which ensures that the clamping block 25 will not hinder the rotation of the threaded cover 24. The clamping block 25 installed on the threaded cover 24 ensures that the user can simultaneously install the threaded cover 24 and the clamping block 25 on the installation slot 26, thereby improving the efficiency of the user in installing the threaded cover 24 and the clamping block 25.

[0025] Specifically, the rod of the pulling rod 35 is hinged to the hinge seat of the pulling rod 35 through a torsion spring shaft, and the hinge seat of the pulling rod 35 is rotatably installed on the pull block 34.

[0026] The shape of the hinge seat of the pulling rod 35 ensures that the rod of the pulling rod 35 will be blocked by the hinge seat of the pulling rod 35 when it is rotated to be perpendicular to the hinge seat. The hinge seat of the pulling rod 35 is rotatably installed on the pull block 34. When the user moves the pull block 34, the pulling rod 35 is rotated, and the opening of the slot of the hinge seat of the pulling rod 35 faces away from the moving direction of the pull block 34. At this time, the user can smoothly move the pull block 34 when moving the pulling rod 35, which facilitates the user to adjust the position of the pull block 34. The torsion spring shaft arranged on the pulling rod 35 ensures that the rod of the pulling rod 35 can quickly return to the original position when the user releases the rod of the pulling rod 35. The torsion spring shaft also ensures the stability of the pulling rod 35 during use of the device.

[0027] Specifically, the slot of the extension sleeve 31 installed on the pull block 34 is provided with a pulling rod 35 near one side of the handle 3.

[0028] The position of the pulling rod 35 provided on the extension sleeve 31 ensures that when the user moves the pulling block 34, the user can hold the pulling rod 35 provided on the extension sleeve 31 and the pulling block 34 at the same time, which is convenient for the user to adjust the position of the pulling block 34 and the position of the extension sleeve 31. The shape of the slot in which the pulling rod 35 is installed on the extension sleeve 31 ensures that when the rod of the pulling rod 35 is rotated to be perpendicular to the side wall of the extension sleeve 31, the pulling rod 35 will be blocked by the side wall of the slot in which the pulling rod 35 is installed, thereby ensuring the stability of the pulling rod 35 provided on the extension sleeve 31 during the adjustment of the position of the pulling block 34 by the user.

[0029] Specifically, the extension sleeve 31 and the side wall on which the pulling block 34 is installed are provided with a groove matched with the pulling rod 35, and the side wall of the pulling rod 35 is provided with a force applying groove.

[0030] The groove in the side wall of the slot of the extension sleeve 31 and the pulling block 34 is used to accommodate the pulling rod 35. When the pulling rod 35 is in the accommodation state, the pulling rod 35 completely enters the inside of the slot in which the pulling rod 35 is accommodated, thereby reducing the impact of the pulling rod 35 on the comfort of the user when the user holds the extension sleeve 31.

[0031] Specifically, the side wall of the slot in which the extension sleeve 31 installs the plug block 32 is provided with a support rod, and the side wall of the plug block 32 is provided with a groove matched with the support rod. The pulling wire connected with the plug block 32 penetrates the support rod.

[0032] The pulling wire connected with the plug block 32 penetrates the support rod of the side wall of the slot in which the plug block 32 is installed. The support rod of the side wall of the slot in which the plug block 32 is installed plays a role in protecting the pulling wire, thereby reducing the impact of the spring on the pulling wire during the movement of the plug block 32. The support rod of the side wall of the slot in which the plug block 32 is installed is located in the inside of the groove in the side wall of the plug block 32, thereby ensuring the protection effect of the support rod of the side wall of the slot in which the plug block 32 is installed on the pulling wire.

[0033] Specifically, the handle 3 installed on the support rod of the extension sleeve 31 is provided with a scale bar corresponding to the plug slot 33.

[0034] When the extension sleeve 31 is aligned with the scale provided on the rod of the handle 3 on which the extension sleeve 31 is installed, the plug block 32 is located in the position corresponding to the plug slot 33. The scale bar enables the user to quickly move the extension sleeve 31 to the appropriate position, thereby improving the efficiency of the user in adjusting the position of the extension sleeve 31.

[0035] The working principle and use process of the utility model: when the height of handle 3 is adjusted, thread cover 24 is detached from installation groove 26, at this time, thread cover 24 is separated from installation groove 26 with clamping block 25, the fixing of cam 23 is released, rotate cam 23, the fixing of cam 23 to fixed block 22 is released, rotate connecting rod 4, with the rotation of connecting rod 4, gear 21 jolts fixed block 22, when connecting rod 4 is adjusted to the appropriate angle, rotate cam 23 back to the original position, at this time, fixed block 22 is jolted to the state of cooperation with gear 21 by cam 23, thread cover 24 and clamping block 25 are installed on installation groove 26, connecting rod 4 is fixed, repeat the above operation to adjust the inclination angle of handle 3, when the length of handle 3 is adjusted, rotate pull rod 35 to the state perpendicular to extension sleeve 31, rotate pull rod 35 arranged on pull block 34, hold two pull rod 35, pull rod 35 arranged on pull block 34 moves with pull block 34, moving pull block 34 separates plug block 32 from insertion slot 33 through pull line, the fixing of extension sleeve 31 is released, the position of extension sleeve 31 is adjusted, when extension sleeve 31 moves to the appropriate position, release pull rod 35 arranged on pull block 34, plug block 32 and pull block 34 respectively move back to the original position under the action of spring and spring telescopic rod, plug block 32 enters insertion slot 33, extension sleeve 31 is fixed, rotate pull rod 35 back to the original position.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A micro-tiller structure with adjustable handle height, comprising a base (1) and a connecting rod (4), characterized in that: It also includes a fixing mechanism (2) and a handle (3). The base (1) is hinged to both ends of the base (1) and the handle (3) respectively. A gear (21) is installed on the hinge shaft of the fixing mechanism (2). A fixing block (22) is slidably installed on the side wall of the groove on which the gear (21) is installed in the base (1) and the handle (3). A protrusion is provided on the side wall of the fixing block (22). An installation groove (26) is provided on the base (1) and the handle (3). The protrusion on the side wall of the fixing block (22) penetrates the side wall of the installation groove (26). A cam (23) is rotatably mounted on the upper part of the mounting groove (26), and a threaded cap (24) is threadedly mounted on the mounting groove (26). A locking block (25) that cooperates with the cam (23) is mounted on the side wall groove of the mounting groove (26). An extension sleeve (31) is slidably mounted on the handle (3). A plug (32) is mounted on the extension sleeve (31) by a spring. Several slots (33) that cooperate with the plug (32) are provided on the side wall of the handle (3). A pull block (34) that is connected to the plug (32) by a pull line is slidably mounted on the extension sleeve (31) by a spring telescopic rod.

2. The micro-tiller structure with adjustable handle height according to claim 1, characterized in that: The locking block (25) is rotatably mounted on the threaded cover (24).

3. The micro-tiller structure with adjustable handle height according to claim 1, characterized in that: The rod of the pull rod (35) is hinged to the hinge seat of the pull rod (35) via a torsion spring shaft, and the hinge seat of the pull rod (35) is rotatably mounted on the pull block (34).

4. The micro-tiller structure with adjustable handle height according to claim 3, characterized in that: The extension sleeve (31) has the pull rod (35) installed in the groove of the pull block (34) near the handle (3).

5. The micro-tiller structure with adjustable handle height according to claim 3, characterized in that: The extension sleeve (31) and the side wall of the mounting block (34) are provided with grooves that cooperate with the pulling rod (35), and the side wall of the pulling rod (35) is provided with a force-applying groove.

6. The micro-tiller structure with adjustable handle height according to claim 1, characterized in that: The extension sleeve (31) has a support rod on the side wall of the groove where the insert (32) is installed. The insert (32) has a groove on the side wall that cooperates with the support rod. A pull wire connected to the insert (32) passes through the support rod.

7. The micro-tiller structure with adjustable handle height according to claim 1, characterized in that: The handle (3) has a scale bar on the support rod for mounting the extension sleeve (31) that corresponds to the slot (33).

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