Safe starting device of harvester

Abstract

The utility model belongs to the technical field of agricultural machinery, and particularly relates to a harvester safe starting device which comprises a control board, a starting button is arranged at the top of the control board, an advancing and retreating control assembly is arranged at the bottom of the control board, a protection device is arranged at the top of the control board, and the protection device comprises a threaded rod. The top of the threaded rod is fixedly connected with a twisting disc, the threaded face of the threaded rod is in threaded connection with a threaded sliding block, the side face of the threaded sliding block is fixedly connected with a protection frame, and a locking assembly is arranged on the side face of the protection frame. The protection device solves the problems that an existing protection device can still be started when the advancing and retreating control rod of the harvester does not return to the initial position, so that the machine body immediately advances and retreats after being started, accidents are easily caused due to the fact that a worker does not respond in time, and accidents occur due to the fact that the worker does not respond in time.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, specifically relating to a harvester safety start device. Background Technology

[0002] The harvester safety start device is designed to ensure the safety of operators and the machine during the start-up process. Because harvesters are large agricultural machines, their working environment and operation involve certain risks; therefore, ensuring normal equipment operation and preventing accidental injuries during start-up is crucial.

[0003] Patent publication number CN206323816U discloses a safe starting device for a harvester, including an operating mechanism and a starting mechanism. The operating mechanism includes an operating lever, a shifting frame, and a pin. The upper end of the operating lever passes through the harvester's operating panel, and the lower end of the operating lever is hinged to the upper end of the shifting frame. The lower middle part of the shifting frame is rotatably mounted on one end of the pin. The starting mechanism includes a fixed frame, a neutral switch, a reversing horn switch, and a spring plate. The upper end of the fixed frame is fixed to the machine frame, and one end of the neutral switch is fixed to the upper end of the fixed frame. One contact of the neutral switch corresponds to the position of the operating lever. One end of the spring plate is fixed to one end of the reversing horn switch, and the contact of the reversing horn switch corresponds to the position of the flange of one end of the spring plate. The other end of the spring plate is obliquely placed between the contact of the neutral switch and the operating lever. During machine operation, neither the operating lever nor the shifting frame will have any contact with the neutral switch contact, thus effectively avoiding wear on the neutral switch contact and ensuring normal machine start-up.

[0004] However, the current safety starting device for harvesters has the following problems: the existing protection device can still be activated when the forward and reverse control lever of the harvester has not returned to the initial position, which causes the machine to move forward or backward immediately after starting. If the operator does not react in time, it is very easy to cause an accident. Therefore, we have proposed a safety starting device for harvesters. Utility Model Content

[0005] The purpose of this invention is to provide a safe starting device for harvesters, which can solve the problem that existing protection devices in related technologies can still be activated when the forward and reverse control levers of the harvester have not returned to their initial positions, causing the machine to move forward or backward immediately after starting, which can easily lead to accidents if the operator does not react in time.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A harvester safety starting device includes a control panel. A start button is provided on the top of the control panel, and a forward / reverse control component is provided on the bottom of the control panel. A protective device is provided on the top of the control panel. The protective device includes a threaded rod, a rotary disc is fixedly connected to the top of the threaded rod, a threaded slider is threadedly connected to the threaded surface of the threaded rod, a protective frame is fixedly connected to the side of the threaded slider, and a locking component is provided on the side of the protective frame.

[0008] The forward / backward control assembly includes a vertical plate, the top of which is fixedly connected to the bottom of the control panel, and a rotating shaft is rotatably connected to the side of the vertical plate. A forward / backward control lever is fixedly connected to the circumferential surface of the rotating shaft.

[0009] The locking assembly includes an L-shaped rod, the side of which is fixedly connected to the side of the protective frame. A locking block is fixedly connected to the end of the L-shaped rod away from the protective frame. A vertical plate is fixedly connected to the circumferential surface of the rotating shaft. A notched retaining ring is fixedly connected to the side of the vertical plate away from the vertical plate.

[0010] The bottom of the protective frame contacts the top of the control panel, and the outer wall of the locking block contacts the inner wall of the notched locking ring.

[0011] A visual warning device is provided on the side of the control panel. The visual warning device includes a support plate, the side of which is fixedly connected to the side of the control panel. A pivot block is fixedly connected to the side of the support plate away from the protective frame. A pressure plate is rotatably connected to the side of the pivot block. A warning sign is fixedly connected to the side of the pressure plate. A sliding frame is fixedly connected to the top of the protective frame. A sliding column is slidably installed through the side of the sliding frame. A transverse pressure block is fixedly connected to the side of the sliding column near the support plate. A compression spring is provided between the side of the transverse pressure block away from the support plate and the inner wall of the sliding frame.

[0012] The outer wall of the transverse pressure block is in contact with the inner wall of the sliding frame, and the extrusion plate is located on the movement trajectory of the transverse pressure block.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This invention, through the setting of a protective device, enables the threaded rod, rotary disc, threaded slider, protective frame, L-shaped rod, locking block, upright plate, and notched retaining ring to cooperate. When the protective frame moves upward, it drives the L-shaped rod to move upward, and the L-shaped rod moves upward, it drives the locking block to move upward. At this time, if the forward / reverse control lever is not in the stationary center position, the notched retaining ring will lock the locking block, preventing the protective frame from moving upward and thus preventing it from opening. This avoids the situation where the forward / reverse control lever can still be started before returning to the initial position, causing the machine to move forward or backward immediately after starting, resulting in a delay in the operator's reaction and an accident.

[0015] This utility model, through the setting of a visual warning device, enables the support plate, rotating block, pressing plate, warning sign, sliding frame, sliding column, transverse pressing block, and pressing spring to cooperate. The rotating block rotates and stands up, causing the warning sign to rotate and stand up. At the same time, the transverse pressing block is obstructed by the support plate and its position is limited, ensuring that non-operators can know from the warning sign that the harvester is in the pre-start rocking state before starting, thereby avoiding sudden accidents. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the entire utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the start button of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the protective frame of this utility model;

[0019] Figure 4 This is a utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle;

[0020] Figure 5 This is a schematic diagram of the structure of the transverse pressing block of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Control panel; 2. Start button; 3. Vertical plate; 4. Rotary shaft; 5. Forward / reverse control lever; 6. Protective device; 61. Threaded rod; 62. Rotary dial; 63. Threaded slider; 64. Protective frame; 65. L-shaped rod; 66. Locking block; 67. Vertical plate; 68. Notched retaining ring; 7. Visual warning device; 71. Support plate; 72. Rotating support block; 73. Pressing plate; 74. Warning sign; 75. Sliding frame; 76. Sliding column; 77. Horizontal pressure block; 78. Compression spring. Detailed Implementation

[0023] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0024] like Figure 1-5As shown, a harvester safety starting device includes a control panel 1. A start button 2 is provided on the top of the control panel 1, and a forward / backward control component is provided on the bottom of the control panel 1. A protection device 6 is provided on the top of the control panel 1. The protection device 6 includes a threaded rod 61. A rotary disc 62 is fixedly connected to the top of the threaded rod 61. A threaded slider 63 is threadedly connected to the threaded surface of the threaded rod 61. A protective frame 64 is fixedly connected to the side of the threaded slider 63. A locking component is provided on the side of the protective frame 64. The locking component greatly prevents the harvester from moving on its own after starting, ensuring the safety of the operators.

[0025] The forward and backward control assembly includes a vertical plate 3, the top of which is fixedly connected to the bottom of the control panel 1. A rotating shaft 4 is rotatably connected to the side of the vertical plate 3, and a forward and backward control lever 5 is fixedly connected to the circumferential surface of the rotating shaft 4. This is existing technology and will not be elaborated further.

[0026] The locking assembly includes an L-shaped rod 65, the side of which is fixedly connected to the side of the protective frame 64. A locking block 66 is fixedly connected to the end of the L-shaped rod 65 away from the protective frame 64. A vertical plate 67 is fixedly connected to the circumferential surface of the rotating shaft 4. A notched retaining ring 68 is fixedly connected to the side of the vertical plate 67 away from the vertical plate 3. With the mutual assistance and cooperation of the notched retaining ring 68 and the forward and backward operating lever 5, the locking assembly can perform its basic function.

[0027] The bottom of the protective frame 64 contacts the top of the control panel 1, and the outer wall of the locking block 66 contacts the inner wall of the notched retaining ring 68. The necessary contact ensures the stable operation of the device.

[0028] According to the above structure, before the driver starts the harvester, the operator manually rotates the rotary dial 62. The rotation of the rotary dial 62 drives the threaded rod 61 to rotate, which in turn drives the threaded slider 63 to move upward along the threaded surface of the threaded rod 61. The upward threaded movement of the threaded slider 63 drives the protective frame 64 to move upward, which in turn drives the L-shaped rod 65 to move upward, which in turn drives the locking block 66 to move upward. If the forward / reverse control lever 5 is not in the stationary center position at this time, the notched retaining ring 68 will lock the locking block 66, preventing the protective frame 64 from moving upward and thus preventing it from opening. This prevents the machine from starting even if the forward / reverse control lever 5 has not returned to its initial position, which could lead to the machine immediately moving forward or backward after starting, causing the operator to react too late and resulting in an accident.

[0029] like Figure 1-5As shown, a visual warning device 7 is provided on the side of the control panel 1. The visual warning device 7 includes a support plate 71. The side of the support plate 71 is fixedly connected to the side of the control panel 1. A pivot block 72 is fixedly connected to the side of the support plate 71 away from the protective frame 64. A pressing plate 73 is rotatably connected to the side of the pivot block 72. A warning sign 74 is fixedly connected to the side of the pressing plate 73. A sliding frame 75 is fixedly connected to the top of the protective frame 64. A sliding column 76 is slidably installed through the side of the sliding frame 75. A transverse pressure block 77 is fixedly connected to the side of the sliding column 76 near the support plate 71. A compression spring 78 is provided between the side of the transverse pressure block 77 away from the support plate 71 and the inner wall of the sliding frame 75. The basic principle of spring force ensures the basic operation of the device.

[0030] The outer wall of the transverse pressure block 77 is in contact with the inner wall of the slide frame 75, and the pressing plate 73 is located on the movement trajectory of the transverse pressure block 77, so that the transverse pressure block 77 can play the basic warning role of the visual warning device 7.

[0031] According to the above structure, the upward movement of the protective frame 64 drives the upward movement of the sliding frame 75, which in turn drives the upward movement of the sliding column 76. The upward movement of the sliding column 76 drives the upward movement of the transverse pressure block 77. When the transverse pressure block 77 moves past the top of the support plate 71, it is subjected to the reverse force of the compression spring 78 and moves towards the compression plate 73. This causes the compression block to rotate and stand up under the restriction of the pivot block 72. The rotation and standing up of the pivot block 72 causes the warning sign 74 to rotate and stand up. At the same time, the transverse pressure block 77 is obstructed by the support plate 71 and its position is limited. This ensures that non-staff members can know that the harvester is in the pre-start rocking state according to the warning sign before starting, thereby avoiding sudden accidents.

[0032] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A safety starting device for a harvester, comprising a console (1), the top of which is provided with a starting button (2), and the bottom of which is provided with a forward and backward control assembly, characterized in that: The top of the control panel (1) is provided with a protective device (6), which includes a threaded rod (61). A rotary disc (62) is fixedly connected to the top of the threaded rod (61). A threaded slider (63) is threadedly connected to the threaded surface of the threaded rod (61). A protective frame (64) is fixedly connected to the side of the threaded slider (63). A locking component is provided on the side of the protective frame (64).

2. A safety starting device for a harvester as claimed in claim 1 wherein: The forward and backward control assembly includes a vertical plate (3), the top of which is fixedly connected to the bottom of the control panel (1), and a rotating shaft (4) is rotatably connected to the side of the vertical plate (3). A forward and backward control lever (5) is fixedly connected to the circumferential surface of the rotating shaft (4).

3. A safety starting device for a harvester as claimed in claim 2, wherein: The locking assembly includes an L-shaped rod (65), the side of which is fixedly connected to the side of the protective frame (64). A locking block (66) is fixedly connected to the end of the L-shaped rod (65) away from the protective frame (64). A vertical plate (67) is fixedly connected to the circumferential surface of the rotating shaft (4). A notched retaining ring (68) is fixedly connected to the side of the vertical plate (67) away from the vertical plate (3).

4. A safety starting device for a harvester as claimed in claim 3 wherein: The bottom of the protective frame (64) is in contact with the top of the control panel (1), and the outer wall of the locking block (66) is in contact with the inner wall of the notched locking ring (68).

5. A safety starting device for a harvester as claimed in claim 3 wherein: A visual warning device (7) is provided on the side of the control panel (1). The visual warning device (7) includes a support plate (71). The side of the support plate (71) is fixedly connected to the side of the control panel (1). A pivot block (72) is fixedly connected to the side of the support plate (71) away from the protective frame (64). A pressing plate (73) is rotatably connected to the side of the pivot block (72). A warning sign (74) is fixedly connected to the side of the pressing plate (73). A sliding frame (75) is fixedly connected to the top of the protective frame (64). A sliding column (76) is slidably installed through the side of the sliding frame (75). A transverse pressure block (77) is fixedly connected to the side of the sliding column (76) near the support plate (71). A compression spring (78) is provided between the side of the transverse pressure block (77) away from the support plate (71) and the inner wall of the sliding frame (75).

6. A safety starting device for a harvester as claimed in claim 5 wherein: The outer wall of the transverse pressure block (77) is in contact with the inner wall of the slide frame (75), and the extrusion plate (73) is located on the movement trajectory of the transverse pressure block (77).

Images