Multi-angle adjusting structure and engineering machinery armrest box

Abstract

The utility model provides a multi-angle adjusting structure and an engineering machinery armrest box. The multi-angle adjusting structure comprises a gear, a guide rack, a movable plate assembly and a fixed plate assembly. The movable plate assembly is rotationally connected with the fixed plate assembly; one end of the guide rack is connected with the fixed plate assembly, the other end of the guide rack penetrates through the movable plate assembly, the gear is arranged on the movable plate assembly, the gear is connected with the guide rack in a meshed mode, and the movable plate assembly is further provided with a locking mechanism used for locking the gear. According to the armrest box, multi-angle adjustment of the armrest box under different working conditions can be met, and the requirement for man-machine control is met.

Description

Technical Field

[0001] The utility model relates to the field of engineering machinery armrest boxes, in particular to a multi-angle adjustment structure and an engineering machinery armrest box. Background Art

[0002] At present, when some construction machinery (especially cranes) are working at high altitude, the angle of the control handle on the armrest box is difficult to adjust (or only the starting and ending positions are adjusted at fixed angles). It does not meet the requirements of human-machine operation and also brings certain safety hazards. Considering human-machine control and safety, multi-angle adjustable armrest boxes have become a good choice for construction machinery control. The multi-angle adjustable structural design of the armrest box must meet both the functional requirements of control and the requirements of human-machine. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a multi-angle adjustment structure and an engineering machinery armrest box.

[0004] In order to solve the problems of the prior art, the utility model discloses a multi-angle adjustment structure, including a gear, a guide rack, a movable plate assembly and a fixed plate assembly; the movable plate assembly and the fixed plate assembly are rotatably connected; one end of the guide rack is connected to the fixed plate assembly, and the other end passes through the movable plate assembly, the gear is arranged on the movable plate assembly, the gear is meshed and connected with the guide rack, and the movable plate assembly is also provided with a locking mechanism for locking the gear.

[0005] Furthermore, the movable plate assembly is provided with a gear fixing plate, and the gear is rotatably connected to the gear fixing plate via a second pin shaft.

[0006] Furthermore, the locking mechanism includes a push switch, a pull wire, a pull wire spring and a gear baffle; one end of the pull wire is connected to the push switch, and the other end passes through the pull wire spring to connect to the gear baffle, the gear baffle is rotatably connected to the gear fixing plate through a first pin shaft, one end of the gear baffle is abutted against the gear fixing plate through a pull wire spring, and the other end is provided with a clamping portion for clamping the gear, and the first pin shaft is located between the pull wire spring and the clamping portion.

[0007] Furthermore, the movable plate assembly and the fixed plate assembly are rotationally connected via a main shaft, and a butterfly washer is provided at the connection.

[0008] Correspondingly, an armrest box of engineering machinery includes an upper shell of the armrest box, a lower shell of the armrest box and the above-mentioned multi-angle adjustment structure, the upper shell of the armrest box is connected to the movable plate assembly, the lower shell of the armrest box is connected to the movable plate assembly, and the upper shell of the armrest box is provided with an armrest box handle.

[0009] Furthermore, an armrest box slide rail and an armrest box fixing plate are sequentially provided at the bottom of the armrest box lower shell.

[0010] Furthermore, the upper shell of the armrest box is also provided with a vibration proportional handle, a vibration proportional handle decorative cover, an armrest box hand rest, a hand rest fixing plate and a cover plate.

[0011] The utility model has the beneficial effects that the utility model can meet the multi-angle adjustment of the armrest box under different working conditions and meet the requirements of human-machine control. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the multi-angle adjustment structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the locking mechanism in the utility model;

[0014] Figure 3 This is a schematic diagram of the handrail box of the engineering machinery of the utility model;

[0015] Figure 4 This is a comparison diagram of the angle adjustment of the armrest box of the utility model.

[0016] Reference numerals:

[0017] 1. Push button switch; 2. Pull wire; 3. Gear fixing plate; 4. Pull wire spring; 5. Gear baffle; 6. First pin shaft; 7. Second pin shaft; 8. Gear; 9. Guide rack; 10. Movable plate assembly; 11. Fixed plate assembly; 12. Main shaft; 13. Butterfly washer; 14. Vibration proportional handle; 15. Vibration proportional handle decorative cover; 16. Armrest box handle; 17. Armrest box upper shell; 18. Armrest box lower shell; 19. Armrest box slide rail; 20. Armrest box fixing plate; 21. Armrest box hand rest; 22. Hand rest fixing plate; 23. Cover plate; 24. Clamping part. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0019] like Figure 1As shown, a multi-angle adjustment structure of the utility model includes a gear 8, a guide rack 9, a movable plate assembly 10 and a fixed plate assembly 11; the movable plate assembly 10 and the fixed plate assembly 11 are rotatably connected through a main shaft 12, and the main shaft 12 can be bolted, and a butterfly washer 13 is provided at the connection to make up for the clearance caused by processing errors and long-term rotation wear; one end of the guide rack 9 is welded to the fixed plate assembly 11, and the other end passes through the movable plate assembly 10, the gear 8 is provided on the movable plate assembly 10, the gear 8 is meshed and connected with the guide rack 9, and the fixed plate assembly 11 is implanted with the guide rack 9 to effectively reduce the shaking of the movable plate assembly 10. The movable plate assembly 10 is provided with a gear fixing plate 3, and the gear 8 is rotatably connected to the gear fixing plate 3 through a second pin 7.

[0020] like Figure 1 , 2 As shown, the movable plate assembly 10 is also provided with a locking mechanism for locking the gear 8. The locking mechanism includes a key switch 1, a cable 2, a cable spring 4 and a gear baffle 5; one end of the cable 2 is connected to the key switch 1, and the other end passes through the cable spring 4 to connect to the gear baffle 5, and the gear baffle 5 is rotatably connected to the gear fixing plate 3 through the first pin 6, one end of the gear baffle 5 is against the gear fixing plate 3 through the cable spring 4, and the other end is provided with a clamping portion 24 for clamping the gear 8, and the first pin 6 is located between the cable spring 4 and the clamping portion 24. When the push switch 1 is not pressed, the wire drawing spring 4 is against the gear fixing plate 3. Under the action of the wire drawing spring 4, the gear baffle 5 is pried with the first pin shaft 6 as a fulcrum, so that the engaging portion 24 of the gear baffle 5 is inserted into the gap between the teeth of the gear 8, the gear 8 is stuck, and the gear 8 is locked; when the push switch 1 is pressed, the push switch 1 pulls the wire drawing 2. Under the action of the pulling force, the wire drawing spring 4 is tightened, the end of the gear baffle 5 close to the wire drawing 2 is upward, the engaging portion 24 is downward, the engaging portion 24 is disengaged from the gear 8, and the gear 8 is unlocked.

[0021] like Figure 3As shown, the engineering machinery armrest box adopting the above-mentioned multi-angle adjustment structure includes an armrest box upper shell 17 and an armrest box lower shell 18, wherein the armrest box upper shell 17 is connected to the movable plate assembly 10, and the armrest box lower shell 18 is connected to the movable plate assembly 10, and the armrest box upper shell 17 is provided with an armrest box handle 16, and the armrest box handle 16 is used to pull and adjust the angle of the armrest box upper shell 17; the bottom of the armrest box lower shell 18 is provided with an armrest box slide rail 19 and an armrest box fixing plate 20 in sequence. ; The armrest box slide rail 19 is used to adjust the front and rear position of the armrest box, and the armrest box fixing plate 20 is used to fix it to the engineering machinery cab; the armrest box upper shell 17 is also provided with a vibration proportional handle 14 of the engineering machinery, a vibration proportional handle decorative cover 15, an armrest box hand rest 21, a hand rest fixing plate 22 and a cover plate 23; the armrest box hand rest 21 is used to support the driver's arm, the hand rest fixing plate 22 is used to support the hand rest height adjustment, and the cover plate 23 is used to assemble the push switch 1 and for maintenance.

[0022] like Figure 4 As shown, when adjusting the angle of the armrest box, first press the key switch 1 to unlock the gear 8, and then pull the armrest box handle 16 upward to pull the armrest box upper shell 17. After adjusting the angle, release the key switch 1 to lock the gear 8 to achieve fixation. At this time, the angle of the armrest box is at the angle required by the driver.

[0023] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. At the same time, in the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the equipment 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 to the present utility model. In the drawings of the present invention, the filling patterns are only used to distinguish the layers and no other limitations are given.

[0024] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-angle adjustment structure, characterized in that: The movable plate assembly (10) comprises a gear (8), a guide rack (9), a movable plate assembly (10) and a fixed plate assembly (11); the movable plate assembly (10) and the fixed plate assembly (11) are rotatably connected; one end of the guide rack (9) is connected to the fixed plate assembly (11), and the other end passes through the movable plate assembly (10); the gear (8) is arranged on the movable plate assembly (10); the gear (8) is meshingly connected with the guide rack (9); and the movable plate assembly (10) is also provided with a locking mechanism for locking the gear (8).

2. The multi-angle adjustment structure according to claim 1, characterized in that: The movable plate assembly (10) is provided with a gear fixing plate (3), and the gear (8) is rotatably connected to the gear fixing plate (3) via a second pin shaft (7).

3. The multi-angle adjustment structure according to claim 2, characterized in that: The locking mechanism comprises a push switch (1), a pull wire (2), a pull wire spring (4) and a gear baffle (5); one end of the pull wire (2) is connected to the push switch (1), and the other end passes through the pull wire spring (4) to connect to the gear baffle (5); the gear baffle (5) is rotatably connected to the gear fixing plate (3) via a first pin shaft (6); one end of the gear baffle (5) is abutted against the gear fixing plate (3) via the pull wire spring (4), and the other end is provided with a clamping portion (24) for clamping the gear (8); the first pin shaft (6) is located between the pull wire spring (4) and the clamping portion (24).

4. The multi-angle adjustment structure according to claim 1, characterized in that: The movable plate assembly (10) and the fixed plate assembly (11) are rotatably connected via a main rotating shaft (12), and a butterfly washer (13) is provided at the connection point.

5. An engineering machinery armrest box, characterized in that: The invention comprises an armrest box upper shell (17) and an armrest box lower shell (18) and a multi-angle adjustment structure as claimed in any one of claims 1 to 4, wherein the armrest box upper shell (17) is connected to a movable plate assembly (10), the armrest box lower shell (18) is connected to the movable plate assembly (10), and the armrest box upper shell (17) is provided with an armrest box handle (16).

6. The engineering machinery armrest box according to claim 5, characterized in that: An armrest box slide rail (19) and an armrest box fixing plate (20) are sequentially arranged at the bottom of the armrest box lower shell (18).

7. The engineering machinery armrest box according to claim 5, characterized in that: The armrest box upper shell (17) is also provided with a vibration proportional handle (14), a vibration proportional handle decorative cover (15), an armrest box hand rest (21), a hand rest fixing plate (22) and a cover plate (23).

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