CN217905112U

CN217905112U - Rice transplanter

Info

Publication number: CN217905112U
Application number: CN202221736489.5U
Authority: CN
Inventors: 史波杰
Original assignee: Ningbo Zhonghe Lingke Technology Co ltd
Current assignee: Ningbo Zhonghe Lingke Technology Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-11-29
Anticipated expiration: 2032-07-05

Abstract

The utility model relates to a rice transplanter, include: a transplanter body having a support shaft extending transversely thereon; the front wheels are oppositely arranged at the left and the right, the centers of the two front wheels are deviated backwards for a certain distance relative to the supporting shaft and can swing up and down by taking the supporting shaft as a rotating center; the front part of the rear frame is connected with the transplanter body and can swing up and down by taking the support shaft as a rotating center; the rear wheel is arranged on the rear frame and used for supporting the rear frame; the rear frame comprises a rear frame main body and a rear wheel fixing frame, the front portion of the rear frame main body is connected with the supporting shaft, the rear portion of the rear frame main body is provided with a rotating shaft sleeve (31) which extends vertically, the upper portion of the rear wheel fixing frame is provided with a rotating shaft which extends vertically, the rotating shaft is rotatably arranged in the rotating shaft sleeve, and the rear wheels are connected to the rear wheel fixing frame. The turning radius of the transplanter is small, so that the transplanter is convenient to turn around and change rows for transplanting.

Description

Rice transplanter

Technical Field

The utility model relates to the technical field of agricultural machinery, especially, relate to a transplanter.

Background

The existing hand-held rice transplanter mainly comprises an engine, a speed change mechanism, a hydraulic mechanism, a frame, a walking wheel, a transplanting speed change mechanism, a rice seedling supply mechanism, a rice seedling transplanting mechanism and a hand-held operating mechanism.

As a prior patent application of the present applicant (application No.: CN202121230266.7; grant No.: CN 215835915U) discloses a rice transplanter comprising: a transplanter body having a support shaft extending transversely thereon; the center of the front wheel deviates a certain distance relative to the supporting shaft and can swing up and down by taking the supporting shaft as a rotating center; a rear frame; the rear wheel is arranged on the rear frame and used for supporting the rear frame; the front part of the rear frame is rotatably connected to the transplanter body in a mode of swinging up and down relative to the transplanter body, and the swinging rotating axis of the rear frame relative to the transplanter body is coaxial with the supporting shaft. When the driving wheel of the transplanter runs on an uneven hard bottom layer, especially when the front and back areas of the hard bottom layer have height difference, because the rear frame (rear wheel) and the front wheel both swing by taking the axis of the supporting shaft of the transplanter body as the rotation center, the transplanter body (floating boat) can not be interfered to have the inclination problem, so that the transplanting depth can be kept as consistent as possible, the transplanting effect is ensured, and the yield is improved.

However, the rice transplanter disclosed in the above patent has a certain disadvantage that the rear wheel of the rice transplanter is fixed and only turns by the left and right swinging of the front wheel, so that the turning radius of the whole rice transplanter is relatively large, which is not beneficial to turning around a field with a small operation range and continuing to change rows and transplant seedlings.

Therefore, further improvement is required in the existing rice transplanter.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a transplanter which has small turning radius and is beneficial to the line changing and transplanting of rice seedlings.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a rice transplanter comprising:

a transplanter body having a support shaft extending laterally thereon;

the front wheels are oppositely arranged left and right, the centers of the two front wheels are offset backward for a certain distance relative to the supporting shaft, and the front wheels can swing up and down by taking the supporting shaft as a rotating center;

the front part of the rear frame is connected with a supporting shaft of the transplanter body and can swing up and down by taking a front wheel supporting shaft as a rotating center;

the rear wheel is arranged on the rear frame and used for supporting the rear frame;

the rear frame comprises a rear frame main body and a rear wheel fixing frame, the front portion of the rear frame main body is connected with the supporting shaft, the rear portion of the rear frame main body is provided with a rotating shaft sleeve (31) which extends vertically, the upper portion of the rear wheel fixing frame is provided with a rotating shaft which extends vertically, the rotating shaft is rotatably arranged in the rotating shaft sleeve, and the rear wheels are connected to the rear wheel fixing frame.

In order to improve the convenience of operation of a user, the rear frame further comprises a return device which can act on the rear wheel fixing frame and enables the rear wheel fixing frame to have a straightening trend after the rear wheel fixing frame deflects for a set angle.

The return device can adopt elastic elements such as a torsion spring, a pressure spring and the like to realize automatic return of the rear wheel fixing frame, in order to simplify the structure of the return device and reduce the production cost, a first support rod extending forwards is further arranged on the rear wheel fixing frame, a first spring and a second spring are further respectively arranged on the left side and the right side of the first support rod, the first end of the first spring is connected with the first support rod, the second end of the first spring is connected with the part of the rear frame main body located on the left side of the first support rod, the first end of the second spring is connected with the first support rod, the second end of the second spring is connected with the part of the rear frame main body located on the right side of the first support rod, and the first spring and the second spring jointly form the return device.

In order to facilitate the user to operate the rear wheel to steer, the rear wheel steering device further comprises a pedal arranged at the front end part of the first supporting rod, and the front end part of the first supporting rod is further connected with a second supporting rod which extends backwards and is connected with the rear wheel fixing frame.

In order to facilitate the seating of a user, the upper end of the rotating shaft is exposed out of the rotating shaft sleeve and is provided with a seating position.

In order to reasonably utilize the space of the rear frame, the rear frame main body comprises two third support rods which are arranged side by side in the left-right direction and extend in the front-back direction, the two third support rods are rotatably connected to the support shaft in a mode of swinging up and down relative to the transplanter body, the middle parts of the two third support rods are arched upwards to form an inverted U shape, and a first prepared seedling frame is placed on the arched part of the two third support rods.

In a further improvement, the rear frame further comprises second prepared seedling frames positioned on the left side and the right side of the rear wheel.

The second preliminary seedling frame has at least two members arranged in a staggered manner in the up-down direction in order to place as many seedlings as possible and to facilitate the user to take or place the seedlings.

Compared with the prior art, the utility model has the advantages that: because the rotating shaft of the rear wheel fixing frame is rotatably arranged in the rotating shaft sleeve of the rear frame, the rear wheel of the rice transplanter can freely deflect and turn left and right, and the turning radius of the whole rice transplanter is relatively smaller through the auxiliary steering of the rear wheel, so that the rice transplanter is beneficial to turning around and continuously changing rows and transplanting rice seedlings.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a left side view of an embodiment of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken at A-A of FIG. 2;

fig. 4 is a top view of an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the present invention, but these terms are used herein for convenience of description only and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

Referring to fig. 1 to 4, a rice transplanter comprises a rice transplanter body 10, a front wheel 20, a wheel driving mechanism, a seedling box plate 16, a floating boat, a riding place 324, a rear frame 30 and a rear wheel 40. Wherein the front wheel 20 is connected to the transplanter body 10 for supporting the transplanter body 10. The rear wheel 40 is coupled to the rear frame 30 for supporting the rear frame 30. The front part of the rear frame 30 is rotatably connected with the transplanter body 10, thereby forming the integral frame structure of the transplanter. The wheel driving mechanism is provided on the rice transplanter body 10 and connected to the front wheel 20 to drive the front wheel 20 to rotate. The seedling box plate 16 is provided at the rear of the transplanter body 10 and is inclined downward from the rear to the front for placing seedlings. The front part of the seedling plate box 16 is also provided with a transplanting mechanism 15 for taking off and transplanting the seedlings on the seedling plate box 16 into the field.

Referring to fig. 1, the front wheels 20 of the present embodiment are two, and the two front wheels 20 are arranged side by side in the left-right direction. Specifically, the transplanter body 10 has a supporting shaft 11 extending in the transverse direction, and the supporting shaft 11 in this embodiment may be a sleeve extending from a box of a power main body (described below) of the wheel driving mechanism to the left and right. The centers of the two front wheels 20 are offset by a predetermined distance toward the rear wheel 40 side with respect to the support shaft 11, and can swing up and down with the support shaft 11 as a rotation center. There may be one, two or more rear wheels 40 for supporting the rear frame 30, and the rear wheel 40 of the present embodiment is preferably one.

The pontoon includes a main pontoon 13 positioned in the middle of the transplanter body 10 and side pontoons 14 positioned on the left and right sides. The seedling box boards 16 are arranged in a transverse direction, and the seedling box boards 16 are laid on the main pontoon 13 and the right and left side pontoons 14. The wheel drive mechanism includes a power body, a transversely extending propeller shaft (not shown), and two gear boxes (not shown). The power body is arranged at the front part of the transplanter body 10 and is specifically placed on a main floating boat 13 of the transplanter body 10. The transmission shaft is arranged in the support shaft 11, and the two transmission boxes are connected to two ends of the transmission shaft. The wheel driving mechanism and the working principle thereof are the prior art and are not described herein.

The rice transplanter body 10 of the present embodiment has a handhold handle 12 at the rear part, and the handhold handle 12 is adjacent to the seating position of the rear frame 30 for the convenience of holding operation by the user.

Referring to fig. 1 and 3, the rear frame 30 includes a rear frame body 300 and a rear wheel holder 32. The rear frame body 300 includes a third support bar 35, a receiving box 37, and a fourth support bar 38. The front part of the rear frame body 300 is rotatably connected to the support shaft 11 of the rice transplanter body 10, and the rear part is provided with a vertically arranged rotating shaft sleeve 31. The rear wheel holder 32 has a vertically extending rotating shaft 323 at an upper portion thereof, and the rotating shaft 323 is rotatably disposed in the rotating shaft sleeve 31. Specifically, the upper end of the rotating shaft 323 is exposed out of the rotating shaft sleeve 31, and the sitting position 324 is fixed at the upper end of the rotating shaft 323, so that a user can conveniently sit on the sitting position. Meanwhile, in order to facilitate the user to steer the rear wheel 40, the rear wheel holder 32 further has a first support rod 321 extending forward, and specifically, referring to fig. 2, the first support rod 321 extends forward and then bends downward and forward, and two pedals 34 are connected to the ends thereof. In addition, a second support rod 322 extending rearward and connected to the rear wheel holder 32 is connected to a front end of the first support rod 321. The first support rod 321, the second support rod 322 and the corresponding portion of the rear frame 30 form a triangular structure, which ensures the firmness and strength of the portion. The user can easily steer the rear wheels 40 with the assistance of the two pedals 34.

Referring to fig. 3, a returning device acting on the rear wheel holder 32 is further provided between the rear frame body 300 and the rear wheel holder 32. Referring to fig. 3, the returning device of the present embodiment includes a first spring 331 and a second spring 332, wherein the first spring 331 and the second spring 332 are respectively located at left and right sides of the first support rod 321. The first spring 331 has a first end connected to the first support rod 321 and a second end connected to a portion of the rear frame body 300 located on the left side of the first support rod 321 through a first adjustment screw 391. The second spring 332 has a first end connected to the first support rod 321 and a second end connected to a portion of the rear frame body 300 located at the right side of the first support rod 321 by a second adjustment screw 392. After the rear wheel holder 32 is deflected to the left or right by a set angle, it always tends to be deflected to the middle position and to be rotated to the right under the elastic force of the first spring 331 and the second spring 332.

The arrangement of the return device enables a user to operate the rear wheel 40 to be timely straightened in a labor-saving manner, and enables the rice transplanter to walk linearly as much as possible in the process of transplanting rice seedlings, thereby ensuring the effect of transplanting rice seedlings.

Referring to fig. 1 and 2, the rear frame body 300 of the present embodiment includes two third support rods 35 disposed side by side from left to right and extending forward from the rear, and correspondingly, two ends of the support shaft 11 are respectively provided with a shaft sleeve capable of rotating relative to the support shaft 11, and front end portions of the two third support rods 35 are respectively connected to the support shaft 11 through the corresponding shaft sleeves. Preferably, the two third support bars 35 are both arched upwards at the middle part and are in an inverted U shape, specifically, the two third support bars 35 are erected above the transplanter body 10, the third support bars 35 cross over the seedling box plate 16 to extend forwards at the upper part and then bend downwards to be connected with the support shaft 11, thereby avoiding the interference problem of the third support bars 35 of the rear frame 30 and other parts of the transplanter body 10.

The rear frame body 300 also has fourth support rods 38 extending from the front to the rear on both left and right sides, wherein the center portion of the left fourth support rod 38 is arched to the left and the center portion of the right fourth support rod 38 is arched to the right. The rear portions of the two fourth support bars 38 each have a vertically disposed mount 381 for mounting a second preliminary seedling frame 362 (described below).

In order to utilize the space of the rear frame 30, a first preliminary seedling frame 361 is further placed at the arched position between the two third support rods 35 in the embodiment. The rear frame 30 further includes second preliminary seedling frames 362 provided on both left and right sides of the rear wheel 40. Wherein, the second prepared seedling frame 362 is arranged on the fixing frame 381 at the rear part of the fourth supporting rod 38, the second prepared seedling frame 362 has at least two staggered arranged in the up-down direction, as shown in fig. 1, three second prepared seedling frames 362 are arranged at the left and right sides, thereby placing the seedlings as much as possible, and the staggered arrangement structure is convenient for the user to take or place the seedlings. The first prepared seedling frame 361 and the second seedling frame 362 are added, so that the amount of the carried prepared seedlings is increased, the transplanting efficiency is improved, and the rice transplanting machine can be used for large-scale fields.

Referring to fig. 2, a storage box 37 is located at the rear of the rear frame 30, specifically, at the rear side of the seating position 324, for placing articles.

Claims

1. A rice transplanter comprising:

a rice transplanter body (10) having a support shaft (11) extending in the transverse direction;

the front wheels (20) are oppositely arranged left and right, the centers of the two front wheels (20) are offset backward for a certain distance relative to the supporting shaft (11), and the front wheels can swing up and down by taking the supporting shaft (11) as a rotating center;

a rear frame (30) which is connected with a support shaft (11) of the transplanter body (10) at the front part and can swing up and down by taking the support shaft (11) as a rotation center;

a rear wheel (40) provided on the rear frame (30) for supporting the rear frame (30);

the method is characterized in that: the rear frame (30) comprises a rear frame main body (300) and a rear wheel fixing frame (32), the front portion of the rear frame main body (300) is connected with the supporting shaft (11), the rear portion of the rear frame main body is provided with a rotating shaft sleeve (31) which vertically extends, the upper portion of the rear wheel fixing frame (32) is provided with a rotating shaft (323) which vertically extends, the rotating shaft (323) is rotatably arranged in the rotating shaft sleeve (31), and rear wheels (40) are connected onto the rear wheel fixing frame (32).

2. A rice transplanter according to claim 1, wherein: the rear frame (30) also comprises a return device which can act on the rear wheel fixing frame (32) and enables the rear wheel fixing frame (32) to have a straightening trend after the rear wheel fixing frame is deflected for a set angle.

3. A rice transplanter according to claim 2, wherein: the rear wheel fixing frame (32) is further provided with a first supporting rod (321) extending forwards, the left side and the right side of the first supporting rod (321) are further respectively provided with a first spring (331) and a second spring (332), the first end of the first spring (331) is connected with the first supporting rod (321), the second end of the first spring is connected with the portion, located on the left side of the first supporting rod (321), of the rear frame main body (300), the first end of the second spring (332) is connected with the first supporting rod (321), the second end of the second spring is connected with the portion, located on the right side of the first supporting rod (321), of the rear frame main body (300), and the first spring (331) and the second spring (332) jointly form the return device.

4. A rice transplanter according to claim 3, wherein: the bicycle is characterized by further comprising a pedal (34) arranged at the front end part of the first supporting rod (321), wherein the front end part of the first supporting rod (321) is also connected with a second supporting rod (322) which extends backwards and is connected with the rear wheel fixing frame (32).

5. A rice transplanter according to claim 1, wherein: the upper end of the rotating shaft (323) is exposed out of the rotating shaft sleeve (31) and is provided with a riding position (324).

6. A rice transplanter according to any one of claims 1 to 5, wherein: the rear frame main body (300) comprises two third supporting rods (35) which are arranged side by side in the left-right direction and extend in the front-back direction, the two third supporting rods (35) are rotatably connected to the supporting shaft (11) in a mode of swinging up and down relative to the transplanter body (10), the middle parts of the two third supporting rods (35) are arched upwards to form an inverted U shape, and first prepared seedling frames (361) are placed on the upwards arched parts of the two third supporting rods (35).

7. The rice transplanter according to claim 6, wherein: the rear frame (30) further comprises second prepared seedling frames (362) positioned on the left and right sides of the rear wheel (40).

8. The rice transplanter according to claim 7, wherein: the second preliminary seedling frame (362) has at least two arranged in a staggered manner in the vertical direction.