Seat mounting structure of riding type mini-tiller

Abstract

The utility model discloses a seat mounting structure of a riding type mini-tiller, which comprises a seat main body arranged above a rear frame, and the seat main body is connected with the rear frame. The seat main body is mounted on the rear frame, so that the seat and the rear frame can be kept relatively fixed, and the problem that the distance between the seat and a control handle on the rear frame is changed to influence the control convenience of a rear machine tool due to deflection of the seat in the steering process at present can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-tillage machine seats, in particular to a seating type micro-tillage machine seat installation structure. Background Art

[0002] A ride-on tiller is an agricultural machine that allows the operator to sit on the machine to till the land. Compared with a walk-behind tiller, it has the characteristics of improving operator comfort, reducing fatigue from long-term tillage, and making tillage control easier. It is more suitable for tillage, weeding, sowing and fertilizing on large areas of farmland.

[0003] The front frame of a ride-on micro-tiller is provided with a steering unit, and the rear frame of the micro-tiller is provided with rear-mounted implements and a control handle for the rear-mounted implements. A steering transmission unit is provided between the front frame and the rear frame of the micro-tiller, and the steering transmission unit includes a rotating shaft, and both ends of the transmission shaft are connected to the front frame and the rear frame respectively through universal joints. Currently, the seat of a ride-on micro-tiller is usually connected to the front frame of the micro-tiller. When the micro-tiller turns, the front frame and the seat connected to the front frame will drive synchronous steering. Since the rear frame rotates relative to the front frame, this also causes the distance between the seat on the front frame and the control handle on the rear frame to change during the steering process, making it inconvenient for the operator sitting on the seat to grasp the control handle, affecting the convenience of operating the rear-mounted implements. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a seat mounting structure for a ride-on micro-tiller, so as to solve the problem that the operator has difficulty controlling the rear implements during the steering process of the existing ride-on micro-tiller.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A seat mounting structure for a riding micro-tillage machine comprises a seat main body arranged above a rear frame, wherein the seat main body is connected to the rear frame.

[0007] Compared with the existing technology, the principle and beneficial effects of this utility model are:

[0008] 1. The seat body in this solution is installed on the rear frame, which can prevent the seat body from deflecting relative to the rear frame during the turning process of the tiller, and thus prevent the distance between the seat and the operating handle from changing, thereby ensuring the convenience of operating the rear-mounted equipment.

[0009] 2. By installing the seat body on the rear frame, compared with the current steering process, the front frame of the tiller drives the seat and the operator on the seat to deflect together, causing the center of gravity of the front frame to shift to one side, thereby affecting the grip of the front wheel, and then transmitted to the rear frame through the body structure, affecting the traction and grip of the rear wheel, thereby reducing the stability of the overall structure. In this solution, the seat always remains in the middle position of the rear frame. During the steering process, the position of the center of gravity of the rear frame will not be affected by the steering, so the stability is better. Moreover, by installing the seat body on the rear frame, the operator's own weight can also be used as a natural counterweight to enhance the grip of the rear wheel and reduce the risk of the front wheel lifting, thereby improving the overall stability and safety.

[0010] As a preferred embodiment of the present invention, the rear frame includes a protective cover arranged outside the transmission shaft, the front end of the protective cover is hinged to the connection part of the front frame, the rear end of the protective cover is connected to the housing of the rear gearbox, and a mounting frame is provided on the seat body, and the two ends of the mounting frame are respectively mounted on the protective cover and the rear gearbox housing. The seat of the current riding micro-tiller is fixed to the front frame. In order to meet the installation space requirements, one end of the connecting support frame needs to be fixed to the front frame, and the other end needs to be extended outward before the seat is installed, which causes the connecting support frame to form a cantilever structure. In this solution, the mounting frame structure is simple and lightweight and can be directly installed on the upper side of the rear frame. Compared with the current cantilever support structure, the supporting stability is better. Moreover, since the connecting support frame needs to be fixed to the front frame, and the space between the front frame and the rear frame is narrow, when installing the connecting support frame, it may be inconvenient due to space limitations. In this solution, since the mounting frame is directly installed on the upper side of the rear frame, the space on the upper side of the rear frame is wider, and installation is more convenient.

[0011] As a preferred embodiment of the present invention, the mounting bracket is provided with connecting plates at each end. A top plate is fixed to the top of the rear gearbox housing. The front connecting plate is fixed to the protective cover, and the rear connecting plate is fixed to the top plate. In this solution, the two ends of the mounting bracket are connected by bolts, which is simple and convenient, and easy to assemble and disassemble.

[0012] As a preferred embodiment of the present invention, the rear frame further includes a fender positioned above the rear gearbox, the fender having a through-hole for the mounting frame to pass through, and the seat body mounted above the fender. In this embodiment, the seat is positioned above the fender, shielding the seat and operator during tillage operations, reducing soil splashing onto the operator.

[0013] As a preferred embodiment of the present invention, the seat body is slidably connected to a mounting frame. Slide rails are provided on either side of the upper side of the mounting frame. Slide members are provided on the lower side of the seat body, corresponding to the two slide rails, to engage with the slide rails. One of the slide members is provided with a locking structure to lock the seat. In this solution, the slide rails and slide members cooperate to adjust the seat's position forward and backward, allowing the operator to adjust to the most comfortable sitting position based on their height and leg length, ensuring their feet are firmly planted on the pedals and their hands rest naturally on the joysticks, thereby improving operational comfort and control accuracy.

[0014] As a preferred embodiment of the present invention, the locking structure includes a locking plate rotatably connected to the slide, the locking plate is provided with a rotating portion, a clamping portion is provided on one side of the locking plate located at the rotating portion, a T-shaped slot is provided in the middle of the slide rail, and a plurality of clamping slots are evenly formed on the inner edge of the T-shaped slot of the slide rail on the side provided with the locking structure, which can cooperate with the clamping portion. The locking plate is provided with an adjustment member, which is used to control the horizontal rotation of the locking plate to achieve the cooperation between the clamping portion and the clamping slot. In this solution, the adjustment member can be used to control the horizontal rotation of the locking plate. When the locking plate is rotated to a position where the clamping portion cooperates with the clamping slot, the slide can be restricted from sliding further. Conversely, when the adjustment member controls the locking plate to rotate in the opposite direction, so that the clamping portion exits the clamping slot, the slide can continue to slide forward along the slide rail, thereby adjusting the position of the seat, and the adjustment is flexible.

[0015] As a preferred embodiment of the present invention, the adjusting member includes a mounting portion disposed on the locking plate, with the mounting portion and the engaging portion being located on either side of the rotating portion. A spring is secured between the mounting portion and the sliding member to drive the locking plate to rotate. In this embodiment, the locking plate can be rotated to one side by applying force to the spring. When the engaging portion exits the slot, the spring is in a stretched state. Conversely, when the force is no longer applied, the spring automatically resets, driving the locking plate to rotate in the opposite direction, allowing the engaging portion to re-enter the slot to retain the position. This embodiment, by using a spring to drive the locking plate to rotate, achieves automatic reset and locking, making it simple and convenient to use.

[0016] As a preferred embodiment of the present invention, the slide is a plate that fits into the T-shaped slide groove. The middle portion of the plate protrudes upward and forms an accommodation space with the bottom of the T-shaped slide groove. A mounting groove that communicates with the accommodation space is provided on one side of the slide. The rotating portion of the locking plate is inserted into the mounting groove and is rotationally connected to the slide. A limiting member is provided in the T-shaped slide groove of the slide rail, and the portion of the locking plate that penetrates the mounting groove can abut against the limiting member. When the operator adjusts the seat forward, it is difficult to determine the relative position between the rear slide rail and the seat because the operator is facing forward, which can easily cause the seat to fall out. In this solution, the locking plate cooperates with the limiting member to solve the problem of the seat directly falling out of the slide rail when adjusting the seat forward. In addition, in this solution, in addition to solving the problem of the seat falling out, the locking plate itself also has the function of locking the seat, realizing multiple functions of a single component. This arrangement is conducive to simplifying the structure and reducing costs.

[0017] As a preferred embodiment of the present invention, the mounting portion is located outside the mounting slot, and the spring is arranged between the mounting portion and the outer side wall of the protrusion in the middle of the slide. When the mounting portion rotates toward the side away from the mounting slot, the clamping portion can be inserted into the mounting slot so that the slide slides on the slide rail. When rotated in the opposite direction, the clamping portion can pass through the mounting slot and cooperate with the clamping slot of the slide rail.

[0018] As a preferred embodiment of the present invention, the mounting portion is provided with an adjustment handle. In this solution, the adjustment handle can be provided to facilitate the application of force to the spring, thereby improving the convenience of adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the embodiment of the utility model Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of the embodiment of the utility model Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the structure of the mounting frame in the embodiment of the utility model. Figure 1 ;

[0022] Figure 4 This is a schematic diagram of the structure of the mounting frame in the embodiment of the utility model. Figure 2 ;

[0023] Figure 5 yes Figure 4 Enlarged view of middle area A;

[0024] Figure 6 This is a schematic structural diagram of the locking structure in an embodiment of the present utility model;

[0025] Figure 7 This is the usage state of the locking structure in the embodiment of the utility model Figure 1 ;

[0026] Figure 8 This is the usage state of the locking structure in the embodiment of the utility model Figure 2 ;

[0027] Figure 9 It is a structural schematic diagram of an embodiment of the utility model applied to a micro-tillage machine.

[0028] Reference numerals include:

[0029] Seat body 1, protective cover 2, rear gearbox 3, mounting frame 4, operating handle 5, connecting part 6, mudguard 7, drive shaft 8, top plate 9, connecting plate 10, slide rail 11, limiter 12, slot 13, slide 14, mounting slot 15, locking plate 16, clamping part 17, mounting part 18, rotating part 19, adjustment handle 20, spring 21, crossbeam 22. DETAILED DESCRIPTION

[0030] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes and are not intended to limit the present invention.

[0031] In the description of this application, the terms "top", "bottom", "one end", "one side", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0032] See also Figure 1 、 Figure 2 and Figure 9As shown, this embodiment discloses a seat mounting structure for a ride-on micro-tiller, including a seat body 1 connected to a rear frame. Specifically, the rear frame of the micro-tiller includes a protective cover 2 arranged outside a transmission shaft 8, the front end of the protective cover 2 is hinged to the connecting portion 6 of the front frame, and the rear end of the protective cover 2 is fixedly connected to the housing of the rear gearbox 3. A mounting frame 4 is provided on the seat body 1, and connecting plates 10 are fixed to both ends of the mounting frame 4, wherein the connecting plate 10 at the front end of the mounting frame 4 is welded and fixed to the mounting frame 4, and the connecting plate 10 at the rear end of the mounting frame 4 is bolted to the mounting frame 4. A top plate 9 is fixed to the top of the housing of the rear gearbox 3, the connecting plate 10 at the front end is bolted to the upper side of the protective cover 2, and the connecting plate 10 at the rear end is bolted to the top plate 9. The rear frame also includes a mudguard 7 arranged above the rear gearbox 3, with a through hole opened on the mudguard 7 for the mounting frame 4 to pass through. The rear end of the mounting frame 4 passes through the through hole from top to bottom and is fixed to the top plate 9.

[0033] In this embodiment, the seat body 1 is mounted on the rear frame, thereby maintaining a relative fixed position between the seat and the rear frame. This ensures that the distance between the seat and the control handle 5 remains relatively fixed, ensuring convenient operation of the rear-mounted equipment. Furthermore, during steering, the seat remains in the center of the rear frame, ensuring that the position of the rear frame's center of gravity is not affected by steering, thereby improving stability. Furthermore, mounting the seat body 1 on the rear frame makes the installation process more convenient and efficient. Conventional seat connection support brackets extend from the rear frame to the front frame, resulting in a long extension distance and limited support stability. Furthermore, due to the narrow space between the front and rear frames, installation of the connection support bracket may be difficult due to space constraints. In this embodiment, the mounting bracket 4 is mounted directly on the upper side of the rear frame, providing a wider space on the upper side, making installation more convenient. Furthermore, since the mounting bracket 4 is directly fixed to the upper side of the protective cover 2 and the top plate 9, the connection stability is also better than that of conventional cantilever structures.

[0034] For further information, see Figure 3 and Figure 4 As shown, the seat body 1 is slidably connected to the upper side of the mounting frame 4. Specifically, two cross beams 22 are welded between the left and right sides of the upper side of the mounting frame 4. Two slide rails 11 are bolted to the two cross beams 22. The two slide rails 11 are distributed on the left and right sides of the two cross beams 22 and are perpendicular to the cross beams 22. The slide rails 11 on the corresponding sides of the lower side of the seat body 1 are respectively fixed with slides 14 that cooperate with the slide rails 11. When the slide rails 11 and the slide members 14 slide and cooperate, the front and rear position of the seat body 1 can be adjusted. This setting can facilitate the operator to adjust to the most comfortable sitting posture according to his or her own height and leg length, ensure that the feet can be firmly stepped on the pedals, and the hands can be naturally placed on the operating handle 5, thereby improving the comfort of operation and the accuracy of control.

[0035] Furthermore, a locking structure is provided on the slide 14 on one side. After the seat body 1 is adjusted to a suitable position, the seat can be locked by the locking structure. For details, see Figure 3-6 As shown, the middle part of the slide rail 11 has a T-shaped slot, and the slide 14 is a plate that matches the T-shaped slot. The middle part of the plate bulges upward and forms an accommodating space with the bottom of the T-shaped slot. A mounting groove 15 communicating with the accommodating space is provided on one side of the slide 14. The locking structure includes a locking plate 16. A rotating portion 19 is provided on the locking plate 16. After the rotating portion 19 penetrates the mounting groove 15, it is rotatably connected to the middle part of the slide 14. A clamping portion 17 is provided on one side of the rotating portion 19 on the locking plate 16. The clamping portion 17 is a vertical plate extending downward, wherein, A plurality of slots 13 that can cooperate with the snap-fit portion 17 are evenly arranged along the length of the inner edge of the T-shaped slideway of the slide rail 11 with a locking structure. When the locking plate 16 rotates horizontally, it can drive the snap-fit portion 17 to pass through or out of the installation slot 15. When the snap-fit portion 17 passes through the installation slot 15, the snap-fit portion 17 will exit the slot 13. At this time, the slide 14 can slide on the slide rail 11 to adjust the seat position. When the snap-fit portion 17 passes through the installation slot 15, the snap-fit portion 17 can be snapped into the slot 13 from the side to lock the seat body 1. An adjustment member is provided on the locking plate 16, which is used to control the rotation of the locking plate 16. For details, see Figure 3 As shown, the adjustment member includes a mounting portion 18 provided on the locking plate 16, the mounting portion 18 passes through the mounting slot 15, a spring 21 is fixed between the mounting portion 18 and the outer wall of the middle protrusion of the slide 14, where the spring 21 is a tension spring, and an adjustment handle 20 is fixed on the mounting portion 18. When the adjustment handle 20 is held and the mounting portion 18 is rotated outward, see Figure 8 As shown, the spring 21 is stretched, the clamping portion 17 rotates inwardly to penetrate the mounting groove 15 and exit the clamping groove 13; when the adjustment handle 20 is released, see Figure 5 and Figure 7 As shown, the spring 21 automatically resets when no force is applied, the mounting portion 18 rotates in the opposite direction, and the engaging portion 17 rotates outward to pass through the mounting slot 15 and re-engage with the engaging slot 13 to achieve locking.

[0036] For further information, see Figure 3As shown, a limit piece 12 is provided in the T-shaped groove of the slide rail 11, and the portion of the locking plate 16 that penetrates the mounting groove 15 can abut against the limit piece 12. When the operator adjusts the seat forward, since the operator faces forward, it is difficult to judge the relative position between the rear slide rail 11 and the seat, which can easily cause the seat to fall out. Through this arrangement, when the seat is adjusted forward, when the seat reaches the limit position, the portion of the locking plate 16 that penetrates the mounting groove 15 can abut against the limit piece 12 to limit the seat body 1 from sliding further, thereby preventing the seat body 1 from directly falling out of the slide rail 11. In this embodiment, in addition to cooperating with the limit piece 12 to solve the problem of the seat falling out, the locking plate 16 itself also has the function of locking the seat, realizing multiple functions of a single component, which is conducive to simplifying the structure and reducing costs.

[0037] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A seat mounting structure for a riding micro-tillage machine, characterized by: It includes a seat body arranged above the rear frame, and the seat body is connected to the rear frame; the rear frame includes a protective cover arranged outside the transmission shaft, the front end of the protective cover is hinged to the connecting part of the front frame, and the rear end of the protective cover is connected to the shell of the rear gearbox. A mounting frame is provided on the seat body, and the two ends of the mounting frame are respectively installed on the protective cover and the rear gearbox shell.

2. The seat mounting structure for a riding micro-tillage machine according to claim 1, characterized in that: The two ends of the mounting frame are respectively provided with connecting plates, a top plate is fixed on the top of the rear gearbox housing, the front connecting plate is fixed on the protective outer cover, and the rear connecting plate is fixed on the top plate.

3. The seat mounting structure for a riding micro-tillage machine according to claim 1, characterized in that: The rear frame also includes a fender arranged above the rear gearbox. The fender is provided with a through hole for the mounting frame to pass through. The seat body is arranged above the fender.

4. The seat mounting structure for a riding micro-tillage machine according to claim 1, characterized in that: The seat body is slidably connected to the mounting frame, and slide rails are respectively provided on both sides of the upper side of the mounting frame. The slide rails on both sides of the lower side of the seat are respectively provided with slides that cooperate with the slide rails, and a locking structure is provided on the slide on one side to lock the seat.

5. The seat mounting structure for a riding micro-tillage machine according to claim 4, characterized in that: The locking structure includes a locking plate rotatably connected to the slide, a rotating part is provided on the locking plate, a clamping part is provided on one side of the rotating part of the locking plate, a T-shaped slide groove is provided in the middle of the slide rail, and a plurality of clamping grooves that can cooperate with the clamping part are evenly opened on the inner edge of the T-shaped slide groove of the slide rail on the side of the locking structure, and an adjusting part is provided on the locking plate, which is used to control the horizontal rotation of the locking plate to achieve the cooperation between the clamping part and the clamping groove.

6. The seat mounting structure for a riding micro-tillage machine according to claim 5, characterized in that: The adjusting member includes a mounting portion arranged on the locking plate, the mounting portion and the clamping portion are respectively located on both sides of the rotating portion, and a spring for driving the locking plate to rotate is fixed between the mounting portion and the sliding member.

7. The seat mounting structure for a riding micro-tillage machine according to claim 6, characterized in that: The slide is a plate that fits into the T-shaped slide groove. The middle part of the plate protrudes upward and forms an accommodating space with the bottom of the T-shaped slide groove. A mounting groove connected to the accommodating space is opened on one side of the slide. The rotating part of the locking plate is inserted into the mounting groove and rotatably connected to the slide. A limit piece is provided in the T-shaped slide groove of the slide rail, and the part of the locking plate that penetrates the mounting groove can be against the limit piece.

8. The seat mounting structure for a riding micro-tillage machine according to claim 7, characterized in that: The mounting portion is located outside the mounting groove, and the spring is arranged between the mounting portion and the outer side wall of the middle protrusion of the slide. The clamping portion penetrates into the mounting groove when the spring is in a stretched state, and penetrates out of the mounting groove when the spring is in a relaxed state to cooperate with the clamping groove of the slide rail.

9. The seat mounting structure for a riding micro-tillage machine according to claim 6, characterized in that: The mounting portion is provided with an adjusting handle.

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