Connecting device of forest culture and culture seeding machine
By adjusting the position of the telescopic plate with rotating bolts and using a fixing mechanism, the problem of adapting the connecting device of the afforestation seeder to different tractor vehicles was solved, achieving a stable connection and reducing bumps.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SAIHANBA MECHANICAL FOREST FARM OF HEBEI PROVINCE (HEBEI SAIHANBA NAT NATURE RESERVE MANAGEMENT CENT)
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional afforestation seeding machine connection devices cannot be adapted to different models or sizes of tractors, resulting in inconvenience and increased costs.
By rotating the first bolt to adjust the position of the telescopic plate, combined with the fixing mechanism, the height and position of the device can be flexibly adjusted, ensuring a stable connection with the tractor.
This achieves a stable connection between the seeder and the tractor, reducing operational bumps and improving operational stability and comfort.
Smart Images

Figure CN224205682U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seeders, and in particular to a connecting device for a forestry seeder. Background Technology
[0002] A forestry seeder is an agricultural machine specifically designed for forestry. Its main function is to sow seeds in forest land. This machine is designed to improve sowing efficiency, ensure sowing quality, and reduce manual labor intensity. The connecting device of a forestry seeder usually refers to the part that connects the seeder to a tractor (such as a tractor) so that the seeder can operate in the field.
[0003] Traditional afforestation seeders typically have fixed-length connecting devices. For different models or sizes of tractors, the connecting devices need to be customized or replaced, which increases the inconvenience and cost of use.
[0004] Therefore, those skilled in the art have provided a connecting device for a forestry seeding machine to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a connecting device for a forestry seeding machine. By rotating the first bolt to disengage it from the first threaded hole, adjusting the position of the telescopic plate, and then tightening the first bolt to fix it, the height of the device can be adjusted. Then, the device is securely installed on the tractor vehicle using a fixing mechanism. In this way, the device can adapt to tractors of different heights, ensuring a stable connection, reducing operational bumps, and improving stability and comfort.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A connecting device for a forestry seeding machine includes a connecting block and a fixing mechanism. A telescopic mechanism is provided at the front end of the telescopic connecting block. The fixing mechanism is located at the front end of the telescopic mechanism. The telescopic mechanism includes a mounting plate. A telescopic plate is provided on the inner wall of the mounting plate. Multiple first threaded holes are provided at the upper ends of the mounting plate and the telescopic plate. First bolts are provided on the inner walls of the multiple first threaded holes. Multiple first hinge blocks are fixedly connected to the front end of the connecting block. Telescopic rods are rotatably connected to the front ends of the first hinge blocks on both sides. Second hinge blocks are rotatably connected to the front ends of the telescopic plate and the two telescopic rods.
[0008] By rotating the first bolt to disengage it from the first threaded hole, adjusting the position of the telescopic plate on the inner wall of the mounting plate, and adjusting it to a suitable position, the first bolt is then screwed back into the first threaded hole for fixation. This allows the device height to be adjusted, enabling it to adapt to tractors of different heights.
[0009] Furthermore, each of the second hinge blocks is fixedly connected to a fixing block at its front end. The fixing block has a plurality of second threaded holes at its upper end. The inner walls of the plurality of second threaded holes are provided with second bolts, and the upper ends of the outer walls of the plurality of second bolts are all fitted with nuts.
[0010] With the above technical solution, the second bolt is moved away from the second threaded hole. When the fixing block is attached to the rear end of the tractor, the second bolt is connected to the second threaded hole, and then the nut is used to limit and fix it.
[0011] Furthermore, the rear end of the mounting plate is rotatably connected to the front end of the intermediate first hinge block;
[0012] The above technical solutions make adjusting the position and angle of the seeder simpler and allow for quick adjustments based on different operational needs.
[0013] Furthermore, the telescopic plate slides on the inner wall of the mounting plate;
[0014] The above technical solution allows users to adjust the distance between the seeder and the tractor as needed, thereby adapting to different tractor sizes or different operational requirements.
[0015] Furthermore, the plurality of the first bolts are threadedly connected to the first threaded hole;
[0016] The above technical solutions increase the safety of preventing loosening.
[0017] Furthermore, the upper ends of multiple second bolts penetrate the fixing block to the outside of the fixing block;
[0018] The above technical solution helps to evenly distribute stress to the fixing block and connected components, reducing local pressure and avoiding damage caused by stress concentration.
[0019] Furthermore, the plurality of nuts are threadedly connected to the second bolt;
[0020] The above technical solution prevents the second bolt from loosening under vibration or dynamic load, ensuring the firmness between the connected components.
[0021] This utility model has the following beneficial effects:
[0022] 1. The present invention proposes a connecting device for a forestry seeder. By rotating the first bolt to disengage it from the first threaded hole, adjusting the position of the telescopic plate on the inner wall of the mounting plate, and adjusting it to a suitable position, the first bolt is screwed back into the first threaded hole for fixation. This adjusts the height of the device. Subsequently, a fixing mechanism is used to securely install the entire device on the tractor. In this way, the device can adapt to tractors of different heights, ensuring a stable and reliable connection between the seeder and the tractor, reducing bumps and vibrations during operation, and improving the overall operational stability and comfort. Attached Figure Description
[0023] Figure 1 This is an isometric view of a connecting device for a forestry seeder proposed in this utility model;
[0024] Figure 2 This is a top view of a connecting device for a forestry seeder proposed in this utility model;
[0025] Figure 3 This is an exploded view of a connecting device for a forestry seeder proposed in this utility model;
[0026] Figure 4 This is a side sectional view of a connecting device for a forestry seeding machine proposed in this utility model.
[0027] Legend:
[0028] 1. Telescopic mechanism; 101. Mounting plate; 102. Telescopic plate; 103. First bolt; 104. First threaded hole; 105. First hinge block; 106. Second hinge block; 107. Telescopic rod;
[0029] 2. Fixing mechanism; 201. Fixing block; 202. Second threaded hole; 203. Second bolt; 204. Nut;
[0030] 3. Connecting block. Detailed Implementation
[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0032] Reference Figure 1 , Figure 2 and Figure 3The present invention provides a specific embodiment of a forestry seeding machine connection device, comprising a connecting block 3 and a fixing mechanism 2. The telescopic connecting block 3 is provided with a telescopic mechanism 1 at its front end, and the fixing mechanism 2 is located at the front end of the telescopic mechanism 1. The telescopic mechanism 1 includes a mounting plate 101, and a telescopic plate 102 is provided on the inner wall of the mounting plate 101. Multiple first threaded holes 104 are provided on the upper ends of the mounting plate 101 and the telescopic plate 102. First bolts 103 are provided on the inner walls of the multiple first threaded holes 104. Multiple first hinge blocks 105 are fixedly connected to the front end of the connecting block 3. Telescopic rods 107 are rotatably connected to the front ends of the first hinge blocks 105 on both sides. Second hinge blocks 106 are rotatably connected to the front ends of the telescopic plate 102 and the two telescopic rods 107.
[0033] Rotate the first bolt 103 to disengage it from the first threaded hole 104, adjust the position of the telescopic plate 102 on the inner wall of the mounting plate 101, and adjust it to a suitable position. Then screw the first bolt 103 back into the first threaded hole 104 to fix it. This adjusts the height of the device, which can adapt to tractors of different heights.
[0034] Reference Figure 3 and Figure 4 Each of the multiple second hinge blocks 106 has a fixed block 201 fixedly connected to its front end. The upper end of each fixed block 201 has multiple second threaded holes 202. Second bolts 203 are installed on the inner walls of the multiple second threaded holes 202. Nuts 204 are fitted onto the upper ends of the outer walls of the multiple second bolts 203. When the second bolts 203 are moved away from the second threaded holes 202 and the fixed block 201 is engaged with the rear end of the tractor, the second bolts 203 are connected to the second threaded holes 202, and then fixed in place by the nuts 204. The rear end of the mounting plate 101 is rotatably connected to the front end of the intermediate first hinge block 105, making it easier to adjust the position and angle of the seeder, allowing for quick adjustments according to different operational needs. The telescopic plate 102 slides on the inner wall of the mounting plate 101, allowing the user to adjust the distance between the seeder and the tractor as needed, thus adapting to different tractor sizes or different operational requirements. Multiple first bolts 103 are threadedly connected to first threaded holes 104, increasing the safety against loosening. Multiple second bolts 203 extend through the upper end of the fixing block 201 to the outside of the fixing block 201. Multiple bolts help to evenly distribute stress to the fixing block 201 and the connected components, reducing local pressure and avoiding damage caused by stress concentration. Multiple nuts 204 are threadedly connected to the second bolts 203, preventing the second bolts 203 from loosening under vibration or dynamic loads and ensuring the firmness between the connected components.
[0035] Working principle: Rotate the first bolt 103 to disengage it from the first threaded hole 104, adjust the position of the telescopic plate 102 on the inner wall of the mounting plate 101, and once it is in the appropriate position, screw the first bolt 103 back into the first threaded hole 104 for fixation. This adjusts the height of the device. Then, move the second bolt 203 away from the second threaded hole 202. When the fixing block 201 is in contact with the rear end of the tractor, connect the second bolt 203 to the second threaded hole 202, and then limit and fix it with the nut 204. The entire device is stably installed on the tractor. In this way, the device can adapt to tractors of different heights, ensuring a stable and reliable connection between the seeder and the tractor.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A connecting device for a forestry seeding machine, comprising a connecting block (3) and a fixing mechanism (2), characterized in that: The telescopic connecting block (3) is provided with a telescopic mechanism (1) at its front end, and the fixing mechanism (2) is located at the front end of the telescopic mechanism (1); The telescopic mechanism (1) includes a mounting plate (101), and a telescopic plate (102) is provided on the inner wall of the mounting plate (101). Multiple first threaded holes (104) are provided on the upper ends of the mounting plate (101) and the telescopic plate (102). First bolts (103) are provided on the inner walls of the multiple first threaded holes (104). Multiple first hinge blocks (105) are fixedly connected to the front end of the connecting block (3). Telescopic rods (107) are rotatably connected to the front ends of the first hinge blocks (105) on both sides. Second hinge blocks (106) are rotatably connected to the front ends of the telescopic plate (102) and the two telescopic rods (107).
2. The connecting device for a forestry seeder according to claim 1, characterized in that: Each of the second hinge blocks (106) has a fixed block (201) fixedly connected to its front end. The upper end of the fixed block (201) has a plurality of second threaded holes (202). The inner wall of the plurality of second threaded holes (202) is provided with a second bolt (203). The upper end of the outer wall of the plurality of second bolts (203) is fitted with a nut (204).
3. The connecting device for a forestry seeder according to claim 1, characterized in that: The rear end of the mounting plate (101) is rotatably connected to the front end of the first hinge block (105) in the middle.
4. The connecting device for a forestry seeder according to claim 1, characterized in that: The telescopic plate (102) slides on the inner wall of the mounting plate (101).
5. The connecting device for a forestry seeder according to claim 1, characterized in that: Multiple first bolts (103) are threadedly connected to first threaded holes (104).
6. The connecting device for a forestry seeder according to claim 2, characterized in that: The upper ends of multiple second bolts (203) penetrate through the fixing block (201) to the outside of the fixing block (201).
7. The connecting device for a forestry seeder according to claim 2, characterized in that: The plurality of nuts (204) are threadedly connected to the second bolt (203).