Pilot handle adjusting structure

Abstract

The pilot handle adjusting structure comprises a base and a framework which are rotationally connected through a rotating shaft, the framework is rotationally provided with an operating panel, the lower end of the operating panel is provided with a plurality of first shifting teeth, the upper end of the base is provided with a plurality of second shifting teeth, the first shifting teeth and the second shifting teeth are installed in a meshed mode, and an operating handle is movably installed on the side wall of the operating panel. A U-shaped groove is formed in the upper end of the control handle, a buffer plate is slidably installed on the side wall of the framework, a limiting rod is vertically installed on the buffer plate and arranged in the U-shaped groove, one end of the buffer plate is connected with the framework through a spring, the lower end of the control handle is connected with the base through a tension spring, and the control rod is fixedly installed at one end of the control handle. The tail end of the buffer plate is provided with a bearing slope, the end, close to the bearing slope, of the operating panel is provided with a jacking plate, the tail end of the jacking plate is provided with a jacking slope, the jacking slope makes contact with the bearing slope, the framework angle can be rotationally adjusted only through the lifting action of the operating rod, and the direction adjustment of the operating rod does not need to be considered.

Description

Technical Field

[0001] The invention relates to the technical field of operating handles, and in particular to a pilot handle adjustment structure. Background Art

[0002] The two-end loader is equipped with loading attachments and excavating attachments at the front and rear ends of the vehicle body. When the driver needs to switch between front and rear loading and excavation, the driver can rotate the driver's seat 180° to face the loading attachments or excavation attachments to achieve two-end loading and excavation operation. In order to control the hydraulic oil circuit of the attachment, a pilot handle is set on one side of the driver's seat. The driver's legs will touch the pilot handle when the seat is rotated. Therefore, in order to avoid the rotation space of the seat and the human body, the current excavation pilot handle is relatively far away from the human body. The driver needs to stretch his arm to operate the pilot handle, and the operation comfort is poor. Summary of the invention

[0003] The purpose of the present invention is to provide a pilot handle adjustment structure, which can solve the technical problem that the existing pilot handle adjustment process is poor, resulting in the ratchet and ratchet wheel structure being easily worn.

[0004] To achieve the above object, the present invention provides a pilot handle adjustment structure, comprising a base and a frame connected by a rotating shaft, the frame is rotatably mounted with a control plate, a plurality of first shifting teeth are arranged at the lower end of the control plate, a plurality of second shifting teeth are arranged at the upper end of the base, and the first shifting teeth are meshed and mounted with the second shifting teeth;

[0005] A control handle is movably mounted on the side wall of the control panel, a U-shaped groove is provided on the upper end of the control handle, a buffer plate is slidably mounted on the side wall of the frame, a limit rod is vertically mounted on the buffer plate, the limit rod is slidably arranged in the U-shaped groove, one end of the buffer plate is connected to the frame through a spring, the lower end of the control handle is connected to the base through a tension spring, and a control rod is fixedly mounted on one end of the control handle;

[0006] A receiving inclined surface is arranged at the end of the buffer plate, a lifting plate is arranged at one end of the control panel close to the receiving inclined surface, a lifting inclined surface is arranged at the end of the lifting plate, and the lifting inclined surface is in contact with the receiving inclined surface.

[0007] It is further configured that a guide groove is provided on the side wall of the base, the center line of the guide groove is an arc line, a first pin shaft is installed on the side wall of the frame, and the first pin shaft is slidably installed in the guide groove.

[0008] It is further configured that the side wall of the operating handle is movably mounted with an elliptical groove, the side wall of the operating plate is fixedly mounted with a second pin shaft, and the second pin shaft is slidably mounted in the elliptical groove.

[0009] It is further configured that a first box is fixedly installed on the outer side of the base, a second box is fixedly installed on the outer side of the frame, a rectangular hole is provided on the top of the first box, the frame is passed through the rectangular hole, an arc-shaped convex surface is provided on the top of the first box, and an arc-shaped concave surface is provided on the second box, and the arc-shaped concave surface slides along the arc-shaped convex surface

[0010] It is further configured that the first box body is provided with a receiving groove, a joystick is arranged through the receiving groove, and the joystick is slidably arranged in the receiving groove.

[0011] It is further configured that the frame is hollow and a handle mounting surface is provided on the top of the frame.

[0012] It is further configured that the buffer plate is a rectangular plate, a pull ring is provided at one end of the buffer plate through a connecting rod, and the spring is fixed to the pull ring.

[0013] It is further configured that the buffer plate is arranged between the side wall of the frame and the side wall of the operating handle.

[0014] It is further configured that the number of the second teeth is greater than the number of the first teeth.

[0015] It is further configured that the second shifting teeth are evenly distributed along the arc surface at the top of the base.

[0016] Beneficial effects of one or more of the above technical solutions:

[0017] The present invention realizes the front and rear adjustment of the excavation operation through the ratchet adjustment structure. The ratchet is disengaged by pulling the pull rod by hand, and the frame is driven to rotate as a whole. After adjusting to the corresponding angle, the tension spring automatically returns the ratchet. While ensuring the rotation space of the human body, the operation comfort is met. Each time the joystick is lifted, the first gear connected to the frame and the second gear connected to the base are disengaged, and the frame is driven to rotate up and down. When the second pin moves to the bottom of the U-shaped groove, the joystick cannot move. Since the number of the second gear is greater than the number of the first gear, the rotation angle of the frame is limited to 4 degrees each time, and 12 degrees of adjustment can be achieved. The angle of the frame can be rotated and adjusted only by lifting the joystick, without considering the adjustment direction of the joystick. The operation is smooth and stable, and the operation comfort is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 for Figure 1 A partial enlarged view.

[0021] Figure 3 for Figure 1 A partial enlarged view of point B.

[0022] Figure 4 It is a schematic diagram of the structure of the first box body and the second box body of the present invention.

[0023] Figure 5 It is a cross-sectional view of the present invention.

[0024] Figure 6 for Figure 5 Enlarged view of the structure at point C.

[0025] In the figure, 1 is a base; 11 is a guide groove; 12 is a second gear

[0026] 2 frame; 21 first pin; 22 spring; 23 pull ring; 24 buffer plate; 25 handle mounting surface; 26 connecting rod; 27 limiting rod; 28 receiving inclined surface; 29 guide ring;

[0027] 3 rotating shafts;

[0028] 4 operating plate; 41 first shifting gear; 42 second pin shaft; 43 lifting plate; 44 lifting inclined plane;

[0029] 5 operating handle; 51 oval slot; 52 U-shaped slot; 53 operating lever;

[0030] 6 tension spring;

[0031] 7 first box body; 71 arc-shaped convex surface; 72 rectangular hole; 73 receiving groove

[0032] 8 second box body; 81 arc-shaped concave surface. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1 , describing the specific implementation of this embodiment.

[0034] Reference Figure 1 and Figure 2 A pilot handle adjustment structure comprises a base 1 and a frame 2 which are rotatably connected via a rotating shaft 3, a control plate 4 is rotatably mounted on the frame 2, a plurality of first shifting teeth 41 are arranged at the lower end of the control plate 4, a plurality of second shifting teeth 12 are arranged at the upper end of the base 1, and the first shifting teeth 41 are meshed and mounted with the second shifting teeth 12;

[0035] A control handle 5 is movably mounted on the side wall of the control panel 4, a U-shaped groove 52 is provided on the upper end of the control handle 5, a buffer plate 24 is slidably mounted on the side wall of the frame 2, a limit rod 27 is vertically mounted on the buffer plate 24, the limit rod 27 is arranged in the U-shaped groove 52, one end of the buffer plate 24 is connected to the frame 2 through a spring 22, the lower end of the control handle 5 is connected to the base 1 through a tension spring 6, and a control rod 53 is fixedly mounted on one end of the control handle 5;

[0036] A receiving slope 28 is provided at the end of the buffer plate 24, and a lifting plate 43 is provided at one end of the operating panel 4 close to the receiving slope 28. A lifting slope 44 is provided at the end of the lifting plate 43, and the lifting slope 44 contacts the receiving slope 28. A pair of guide rings 29 are fixed to the side wall of the frame 2, and the buffer plate 24 is slidably set on the guide rings 29.

[0037] A guide groove 11 is provided on the side wall of the base 1, and the center line of the guide groove 11 is an arc. A first pin shaft 21 is installed on the side wall of the frame 2, and the first pin shaft 21 is slidably installed in the guide groove 11. The guide groove 11 cooperates with the first pin shaft 21 to ensure the range of motion of the frame 2, so that the frame 2 can only rotate 4 degrees at a time, and the angle of the entire first shifting tooth 41 is 12 degrees, so that the frame 2 can complete multi-gear adjustment.

[0038] Reference Figure 3 The side wall of the operating handle 5 is movably mounted with an elliptical groove 51 , the side wall of the operating plate 4 is fixedly mounted with a second pin 42 , the second pin 42 is slidably mounted in the elliptical groove 51 , and the elliptical groove 51 limits the second pin 42 .

[0039] Reference Figure 4 A first box body 7 is fixedly installed on the outer side of the base 1, and a second box body 8 is fixedly installed on the outer side of the frame 2. A rectangular hole 72 is provided on the top of the first box body 7, and the frame 2 passes through the rectangular hole 72. An arcuate convex surface 71 is provided on the top of the first box body 7, and an arcuate concave surface 81 is provided on the second box body 8. The arcuate concave surface 81 is fitted with the arcuate convex surface 71.

[0040] The first box body 7 defines a receiving groove 73 , and the operating rod 53 is disposed through the receiving groove 73 . The operating rod 53 is disposed in the receiving groove 73 . The receiving groove 73 is configured in an arc shape, and the operating rod 53 moves along the arc path of the receiving groove 73 .

[0041] Reference Figure 1 The skeleton 2 is hollow, and a handle mounting surface 25 is provided at the top of the skeleton 2. The handle mounting surface 25 is used to mount the handle through an existing flange structure.

[0042] The buffer plate 24 is a rectangular plate. A pull ring 23 is provided at one end of the buffer plate 24 through a connecting rod 26. The spring 22 is fixed to the pull ring 23. When the buffer plate 24 moves, the pull ring 23 drives the spring 22 to deform. The end of the spring 22 is hooked into the pull ring 23.

[0043] The buffer plate 24 is disposed between the side wall of the frame 2 and the side wall of the operating handle 5 , and the buffer plate 24 is clamped between the side wall of the frame and the side wall of the operating handle 5 .

[0044] The number of the second teeth 12 is greater than that of the first teeth 41 . Since the second teeth 12 are greater than that of the first teeth 41 , the second teeth 12 cover the first teeth 41 . The rotation angle of the frame 2 is limited to 4 degrees each time, and 12 degrees of adjustment can be achieved.

[0045] The second shifting teeth 12 are evenly distributed along the arc surface at the top of the base 1 , ensuring that the first shifting teeth 41 can be correspondingly engaged with the second shifting teeth 12 after being rotated and reset.

[0046] The specific steps for adjusting the pilot handle are as follows:

[0047] One hand fixes the pilot handle mounting surface 25 or the pilot handle, and the other hand pulls up the operating rod 53, the elliptical groove 51 of the operating handle 5 pushes up the second pin shaft 42, and the second pin shaft 42 drives the operating plate 4 to lift up, and at the same time, the U-shaped groove 52 is clamped into the limiting rod 27, and the U-shaped groove 52 of the operating plate 4 moves obliquely upward along the limiting rod 27. At the same time, when the elliptical groove 51 supports the second pin shaft 42, the lifting inclined surface 44 of the lifting plate 43 contacts the receiving inclined surface 28, and the lifting inclined surface 44 pushes up the receiving inclined surface 28. Since the moving direction of the limiting slider 28 is limited in the guide ring 29, the limiting slider 28 pulls the spring 22 along the oblique line until the limiting rod 27 reaches the bottom of the U-shaped groove 52. The above-mentioned limiting structure ensures that one hand fixes the pilot handle mounting surface 25 or the pilot handle, and the other hand pulls up the operating rod 53 for smooth adjustment with both hands.

[0048] At this time, the first shifting tooth 41 of the limit rod 27 is separated from the second shifting tooth 12, and then the other hand drives the pilot handle mounting surface 25 or the pilot handle to rotate upward or downward. After the pilot handle is rotated, the operating rod 53 is released, and the tension spring 6 drives the operating disk 4 to reset, and the first shifting tooth 41 is clamped into the second shifting tooth 12 to complete the fixing of the position of the pilot handle.

[0049] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A pilot handle adjustment structure, characterized in that: It comprises a base and a frame connected by a rotating shaft, the frame is rotatably mounted with a control panel, a plurality of first shifting teeth are arranged at the lower end of the control panel, a plurality of second shifting teeth are arranged at the upper end of the base, and the first shifting teeth are meshed with the second shifting teeth; A control handle is movably mounted on the side wall of the control panel, a U-shaped groove is provided on the upper end of the control handle, a buffer plate is slidably mounted on the side wall of the frame, a limit rod is vertically mounted on the buffer plate, the limit rod is slidably arranged in the U-shaped groove, one end of the buffer plate is connected to the frame through a spring, the lower end of the control handle is connected to the base through a tension spring, and a control rod is fixedly mounted on one end of the control handle; A receiving inclined surface is arranged at the end of the buffer plate, a lifting plate is arranged at one end of the control panel close to the receiving inclined surface, a lifting inclined surface is arranged at the end of the lifting plate, and the lifting inclined surface is in contact with the receiving inclined surface.

2. The pilot handle adjustment structure according to claim 1, characterized in that: The side wall of the base is provided with a guide groove, the center line of the guide groove is an arc line, the side wall of the frame is provided with a first pin shaft, and the first pin shaft is slidably installed in the guide groove.

3. The pilot handle adjustment structure according to claim 1, characterized in that: The side wall of the operating handle is movably mounted with an elliptical groove, the side wall of the operating plate is fixedly mounted with a second pin shaft, and the second pin shaft is slidably mounted in the elliptical groove.

4. The pilot handle adjustment structure according to claim 1, characterized in that: A first box is fixedly mounted on the outer side of the base, and a second box is fixedly mounted on the outer side of the frame. A rectangular hole is provided on the top of the first box, and the frame passes through the rectangular hole. An arcuate convex surface is provided on the top of the first box, and an arcuate concave surface is provided on the second box. The arcuate concave surface slides along the arcuate convex surface.

5. The pilot handle adjustment structure according to claim 1, characterized in that: The first box body is provided with a receiving groove, a joystick is arranged through the receiving groove, and the joystick is slidably arranged in the receiving groove.

6. The pilot handle adjustment structure according to claim 1, characterized in that: The frame is hollow, and a handle mounting surface is arranged on the top of the frame.

7. The pilot handle adjustment structure according to claim 1, characterized in that: The buffer plate is a rectangular plate, one end of the buffer plate is provided with a pull ring through a connecting rod, and the spring is fixed to the pull ring.

8. The pilot handle adjustment structure according to claim 1, characterized in that: The buffer plate is arranged between the side wall of the frame and the side wall of the operating handle.

9. The pilot handle adjustment structure according to claim 1, characterized in that: The number of the second teeth is greater than the number of the first teeth.

10. The pilot handle adjustment structure according to claim 1, characterized in that: The second teeth are evenly distributed along the arc surface at the top of the base.

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