Marking device

Abstract

The utility model relates to the technical field of seeding machines, in particular to a mark marking device. Which comprises a support and is characterized in that a telescopic rod capable of being driven by a driving mechanism to rotate is installed on the support, an adjusting rod is installed at the end, away from the support, of the telescopic rod, a marking disc is installed at the bottom of the adjusting rod through an adjusting mechanism, and the adjusting mechanism can enable the marking disc to conduct up-down floating adjustment along with changes of the terrain. Through the structure, the position of the marking disc can be adjusted along with the fluctuation of the terrain when the marking disc works, so that the marking continuity is ensured, and the marking effect is enhanced; in addition, through non-rigid connection, the marking disc of the marking device has a buffering effect, and therefore the service life of the marking device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of seed drills, in particular to a marker. Background Art

[0002] Markers are widely used on multi-row seeders. Their main function is to mark a position line during sowing, ensuring that the distance between different rows remains consistent during the sowing process, preventing the occurrence of double sowing or missed sowing, thereby improving sowing efficiency and crop growth quality.

[0003] In the prior art, a marker primarily consists of a support, a telescopic rod, a marking disc, and a drive mechanism for rotating the telescopic rod. While having a simple structure, the marking disc and the telescopic rod are often connected rigidly. This prevents the marking disc from adjusting to the terrain during operation, resulting in poor marking results. Furthermore, the rigid connection shortens the lifespan of the marker. Utility Model Content

[0004] In view of the above problems, the present invention provides a marker to solve the problem in the prior art that the marking disc and the telescopic rod of the marker are rigidly connected, resulting in poor marking effect and reduced service life of the marker.

[0005] The utility model is realized by using the following technical solution: a marker, comprising a support, characterized in that a telescopic rod which can be driven to rotate by a driving mechanism is installed on the support, an adjusting rod is installed at one end of the telescopic rod away from the support, a marking disc is installed at the bottom of the adjusting rod through the adjusting mechanism, and the adjusting mechanism can make the marking disc float up and down in accordance with changes in the terrain.

[0006] The above structure enables the marking disc to adjust its position according to the undulations of the terrain during operation, thereby ensuring the continuity of marking and enhancing the marking effect. In addition, the non-rigid connection also provides the marking disc with a buffering effect, thereby increasing the service life of the marker.

[0007] Furthermore, the adjustment mechanism includes a fixed plate fixedly mounted at the bottom of the adjustment rod, a rotating shaft rotatably mounted on the fixed plate, a rotating plate fixedly mounted at the end of the rotating shaft away from the fixed plate, and a fixed connection between the marking disc and the end of the rotating plate away from the rotating shaft. A spring is also hingedly connected to the fixed plate at one end, and the other end of the spring is hingedly connected to the end of the rotating plate away from the rotating shaft. The arrangement of the fixed plate and the rotating plate, and the action of the spring, allows the marking disc to maintain a consistent marking depth during operation, further enhancing the marking effect.

[0008] Furthermore, an arcuate slot is provided at one end of the fixed plate away from the rotating shaft, and a sliding post is fixedly mounted at the other end of the rotating plate away from the rotating shaft. The sliding post is located in the slot and slides with the slot. The slot limits the rotation angle of the marking disc, thereby enhancing the stability of the device.

[0009] Furthermore, the telescopic rod includes a pivoting arm hingedly connected to the support. The telescopic arm is sleeved within the end of the pivoting arm away from the support, and the telescopic arm is capable of sliding along the pivoting arm. The arrangement of the pivoting and telescopic arms allows the length of the marker to be adjusted to meet the requirements of planters with different row counts.

[0010] Furthermore, the drive mechanism includes a cylinder hinged to the support, the output end of the cylinder being hinged to the rotating arm. The cylinder arrangement allows the marker to be raised when not in use, thereby saving space, and can be lowered by the cylinder when needed.

[0011] Furthermore, a mounting sleeve is fixedly mounted on the end of the telescopic arm away from the support. The middle portion of the mounting sleeve is engaged with the adjustment rod, which can slide up and down along the direction of the mounting sleeve. The installation of the mounting sleeve allows the marking plate to be adjusted up and down during use, thereby accommodating different installation heights and further improving the applicability of the device.

[0012] Furthermore, a fixing bolt is installed on the side of the mounting sleeve away from the support, the fixing bolt is threadedly engaged with the mounting sleeve, and the end of the fixing bolt close to the adjustment rod can be abutted against the adjustment rod. By setting the fixing bolt, the adjustment rod can be locked after the height is adjusted.

[0013] Furthermore, a plurality of first limiting teeth are fixedly connected to the side of the adjusting rod near the support, and a plurality of second limiting teeth are fixedly mounted on the inner side of the mounting sleeve, which cooperate with the first limiting teeth. The first limiting teeth can mesh with the second limiting teeth. The arrangement of the first limiting teeth and the second limiting teeth makes the fixation between the mounting sleeve and the adjusting rod more stable.

[0014] Furthermore, a connecting bolt is also installed on the support, and the connecting bolt can be connected with the support by a nut. By connecting bolts, the support and the frame of the seed drill can be fixedly connected together.

[0015] Furthermore, the connecting bolt is a U-shaped bolt, and both ends of the connecting bolt can pass through the support and cooperate with the nut. Through the setting of the U-shaped connecting bolt, the connection between the device and the frame is more convenient and can be adjusted in the lateral direction.

[0016] In summary, the beneficial effects of the present invention are:

[0017] 1. The adjustment mechanism ensures that the marking disc in this device is constantly engaged with the soil under the action of a spring, ensuring continuous marking and consistent marking depth. Furthermore, the spring provides a buffering force when the marking disc encounters ups and downs, further stabilizing the connection between the marking disc and the adjustment rod and extending the life of the marker.

[0018] 2. By setting the mounting sleeve and the adjusting rod, the marking disc in the device can be adjusted up and down, so that it can adapt to seed drills with different installation height requirements, thereby increasing the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the adjustment mechanism and the lifting mechanism from the first perspective;

[0021] Figure 3 A schematic diagram of the second perspective structure of the adjustment mechanism and the lifting mechanism;

[0022] Figure 4 is a cross-sectional view of the lifting mechanism;

[0023] Figure 5 for Figure 4 A partial enlarged view of the "A" area.

[0024] In the figure: 1-support; 2-connecting bolt; 3-oil cylinder; 4-rotating arm; 5-telescopic arm; 6-adjusting rod; 7-mounting sleeve; 8-fixing bolt; 9-spring; 10-fixing plate; 11-rotating plate; 12-connecting rod; 13-marking plate; 14-first limiting tooth; 15-sliding column; 16-slide groove; 17-second limiting tooth; 18-rotating shaft. DETAILED DESCRIPTION

[0025] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0027] The following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.

[0028] like Figure 1 As shown, the utility model provides a marker, including a support 1 fixedly connected to the seed drill frame, a telescopic rod that can be driven to rotate by a driving mechanism is installed on the support 1, and a marking disc 13 is installed on the end of the telescopic rod away from the support 1 through an adjusting mechanism. The adjusting mechanism can make the marking disc 13 float up and down according to changes in the terrain.

[0029] Specifically, the telescopic rod includes a rotating arm 4 hinged on the support 1, and a telescopic arm 5 is sleeved on the end of the rotating arm 4 away from the support 1. The telescopic arm 5 can slide along the length of the rotating arm 4 to adjust the working width of the marking plate 13.

[0030] The driving mechanism mentioned above is driven by the cylinder 3, which is hinged on the support 1. The output end of the cylinder 3 is hinged to the telescopic arm 5. When the output end of the cylinder 3 contracts, the telescopic arm 5 is lifted, and when the output end of the cylinder 3 extends, the telescopic arm 5 is lowered.

[0031] like Figure 1 、 Figure 2 As shown, a lifting mechanism for adjusting the height of the marking plate 13 during operation is mounted on the end of the telescopic arm 5 away from the support. The lifting mechanism includes a mounting sleeve 7 fixedly connected to the telescopic arm 5. An adjustment rod 6 is sleeved in the middle of the mounting sleeve 7, allowing it to move up and down along the direction of the mounting sleeve 7. A fixing bolt 8 is also mounted on the side of the mounting sleeve 7 away from the support 1. The fixing bolt 8 is threadedly engaged with the mounting sleeve 7. The end of the fixing bolt 8 closest to the adjustment rod 6 can pass through the mounting sleeve 7 to abut against the adjustment rod 6.

[0032] When the position of the adjusting rod 6 is adjusted, the fixing bolt 8 is rotated so that the fixing bolt 8 is against the adjusting rod 6, thereby completing the fixation. At this time, there is a certain space between the side of the adjusting rod 6 away from the support 1 and the side corresponding to the mounting sleeve 7. When the position of the adjusting rod 6 needs to be adjusted, it is only necessary to rotate the fixing bolt in the opposite direction and the adjusting rod 6 can move up and down.

[0033] like Figure 4 、 Figure 5As shown, the adjusting rod 6 is held in place by fixing bolts 8 and fixed by friction. However, since the working environment of the marker may be bumpy, fixing it only in this way can easily cause the adjusting rod 6 to detach, making the connection unstable. Therefore, a plurality of first limiting teeth 14 are fixedly connected to the side of the adjusting rod 6 close to the support 1, and a plurality of second limiting teeth 17 that cooperate with the first limiting teeth 14 are fixedly installed on the inner side of the mounting sleeve 7. The first limiting teeth 14 can mesh with the second limiting teeth 17. This method makes the connection between the mounting sleeve 7 and the adjusting rod 6 more secure, thereby increasing the stability of the device.

[0034] like Figures 1 to 3 As shown, the adjustment mechanism in this device can be any mechanism capable of achieving floating adjustment of the marking disc 13 in response to changes in the terrain, such as a vertical damping spring. In this embodiment, the adjustment mechanism utilizes a fixed plate 10 fixedly mounted at the bottom of the adjustment rod 6. A rotating shaft 18 is rotatably mounted on the fixed plate 10, and an arcuate slot 16 is provided at the end of the fixed plate 10 away from the rotating shaft 18. A rotating plate 11 is fixedly mounted at the end of the rotating shaft 18 away from the fixed plate 10. The end of the rotating plate 11 away from the rotating shaft 18 is fixedly connected to the marking disc 13 via a connecting rod 12. A sliding post 15 is also fixedly mounted at the end of the rotating plate 11 away from the rotating shaft 18. The sliding post 15 is located within the slot 16 and slidably engages with the slot 16. One end of a spring 9 is also hinged to the fixed plate 10, and the other end of the spring 9 is hinged to the end of the rotating plate 11 away from the rotating shaft 18.

[0035] As a further illustration of this example, a connecting bolt 2 for fixed connection with the seed drill frame is also installed on the support 1, and the connecting bolt 2 can be connected to the support 1 through a nut.

[0036] Specifically, the connecting bolt 2 is a "U"-shaped bolt, with both ends of the connecting bolt 2 being able to pass through the support 1 and engage with the nut. The "U"-shaped connecting bolt 2 and the support 1 form a nearly square connection port, which is then sleeved onto the frame. When the support 1 needs to be moved, the nut is simply twisted to expand the area of ​​the connection port, allowing the support 1 to be moved along the direction of the frame, thereby adjusting the position of the support 1. When it needs to be fixed, the nut is simply tightened.

[0037] The operating principle of this device is as follows: when the marking disc 13 moves on the ground, if it encounters a raised terrain, the marking disc 13 will drive the rotating plate 11 to rotate, and the spring 9 will be compressed, thereby completing the adjustment of the position of the marker. When encountering a concave terrain, the rotating plate 11 rotates under the action of the spring 9, causing the marking disc 13 to rotate downward, thereby ensuring continuous marking.

[0038] In summary, the marker provided by the present invention utilizes an adjustment mechanism to ensure that the marking disc 13 in the device, under the action of the spring 9, can consistently engage the soil, thereby ensuring continuous marking and consistent marking depth. Furthermore, the spring 9 provides a buffering force when the marking disc 13 encounters undulations, thereby further stabilizing the connection between the marking disc 13 and the adjustment rod 6 and extending the lifespan of the marker. The mounting sleeve 7 and adjustment rod 6 allow the marking disc 13 in the device to be adjusted vertically, allowing it to adapt to planters with different mounting height requirements, thereby increasing the applicability of the device.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A marker, comprising a support (1), characterized in that: The support (1) is provided with a telescopic rod that can be driven to rotate by a driving mechanism. An adjusting rod (6) is provided at one end of the telescopic rod away from the support (1). A marking disc (13) is provided at the bottom of the adjusting rod (6) via an adjusting mechanism. The adjusting mechanism enables the marking disc (13) to be adjusted to float up and down in response to changes in the terrain.

2. The marker according to claim 1, wherein: The adjustment mechanism comprises a fixed plate (10) fixedly mounted on the bottom of the adjustment rod (6), a rotating shaft (18) being rotatably mounted on the fixed plate (10), a rotating plate (11) being fixedly mounted on one end of the rotating shaft (18) away from the fixed plate (10), and an end of the rotating plate (11) away from the rotating shaft (18) being fixedly connected to the marking plate (13); one end of a spring (9) is further hinged on the fixed plate (10), and the other end of the spring (9) is hinged to the end of the rotating plate (11) away from the rotating shaft (18).

3. The marker according to claim 2, wherein: An arc-shaped slide groove (16) is provided at one end of the fixed plate (10) away from the rotating shaft (18), and a sliding column (15) is fixedly installed at one end of the rotating plate (11) away from the rotating shaft (18). The sliding column (15) is located in the slide groove (16) and slides in cooperation with the slide groove (16).

4. The marker according to claim 1, wherein: The telescopic rod comprises a rotating arm (4) hinged to the support (1); a telescopic arm (5) is sleeved inside an end of the rotating arm (4) away from the support; the telescopic arm (5) is capable of sliding along the direction of the rotating arm (4).

5. The marker according to claim 4, wherein: The driving mechanism comprises an oil cylinder (3) hinged on a support (1), and an output end of the oil cylinder (3) is hinged to a rotating arm (4).

6. The marker according to claim 4, wherein: A mounting sleeve (7) is fixedly mounted on one end of the telescopic arm (5) away from the support (1); the middle portion of the mounting sleeve (7) is sleeved with the adjustment rod (6); and the adjustment rod (6) can slide up and down along the direction of the mounting sleeve (7).

7. The marker according to claim 6, wherein: A fixing bolt (8) is installed on the side of the mounting sleeve (7) away from the support (1), and the fixing bolt (8) is threadedly matched with the mounting sleeve (7). The end of the fixing bolt (8) close to the adjusting rod (6) can be abutted against the adjusting rod (6).

8. The marker according to claim 7, wherein: A plurality of first limiting teeth (14) are fixedly connected to one side of the adjusting rod (6) close to the support (1), and a plurality of second limiting teeth (17) cooperating with the first limiting teeth (14) are fixedly installed on the inner side of the mounting sleeve (7), and the first limiting teeth (14) can mesh with the second limiting teeth (17).

9. The marker according to claim 1, wherein: A connecting bolt (2) is also installed on the support (1), and the connecting bolt (2) can be connected to the support (1) via a nut.

10. The marker according to claim 9, wherein: The connecting bolt (2) is a "U"-shaped bolt, and both ends of the connecting bolt (2) can pass through the support (1) and cooperate with the nut.

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