Engineering machinery seat armrest
Technical Field
The utility model relates to an engineering machine tool seat technical field especially relates to an engineering machine tool armrest.
Background
The seat armrest is arranged on the existing engineering machinery seat, and a driver can conveniently get in and out of the seat and place an arm through the seat armrest. The engineering machinery seat armrests on the market at present generally rotate the adjusting rollers on the seat armrests manually to adjust the angle of the armrests, the man-machine relationship is poor, the operation is complex, time and labor are wasted, and the adjusting rollers are prone to failure due to over-violent force.
The patent with the patent number of CN201175141 discloses a seat armrest, which is provided with a fixed support and a movable armrest, wherein the fixed support comprises a housing and a side plate, a connecting piece is rotatably assembled in the middle of the movable armrest through bolts and nuts, the connecting piece is connected with the fixed movable armrest and the side plate, the side plate is installed on two sides of the lower end of the movable armrest, a reinforcing step is arranged in a cavity of a movable handle, a limiting groove is clamped on the step, a channel is also arranged on the step, a drag hook steel wire is adopted in the channel to connect the limiting groove and a tongue pin, meanwhile, a spring is arranged at the front end of the tongue pin, one end of the spring in the channel abuts; the connecting piece is provided with a limiting notch which is in limiting fit with the tongue pin. Although the chair armrest can basically realize the adjusting function of the chair armrest, the angle of the armrest needs to be adjusted through the button device, and the adjusting process is complex; the seat armrest can not control the angle adjustment, can not well adapt to the sitting posture of a driver, and has poor man-machine relationship.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an engineering machine tool armrest solves or partially solves above-mentioned problem.
The utility model provides an engineering machinery armrest, including a fixed plate, a rotating shaft fixedly connected with the fixed plate, a housing hinged with the fixed plate, and a bracket component arranged in the housing, the bracket component includes a support plate, a positioning mechanism, a reset mechanism, an elastic component and a gear component, one end of the support plate is hinged with the rotating shaft, the other end is fixedly connected with the housing, the positioning mechanism includes a positioning toothed plate and a rack plate which can be clamped with the positioning toothed plate, the reset mechanism includes a reset plate and a baffle which can slide relatively with the reset plate, the first end of the positioning toothed plate and the first end of the reset plate are respectively hinged with the support plate, the positioning toothed plate is connected with the support plate through the elastic component, the second end of the positioning toothed plate and the second end of the reset plate are assembled and connected into a whole, the rack plate with axis of rotation fixed connection, keep off position part with rack plate fixed connection and with baffle swing joint, the baffle with the rotating shaft is articulated and can for the axis of rotation swing.
Further, the backup pad includes first backup pad and second backup pad, first backup pad with the second backup pad respectively with the rotating shaft is articulated, the first end of location pinion rack with first backup pad is articulated, the location pinion rack still warp elastomeric element with first backup pad is connected, the first end that resets with the second backup pad is articulated, the second end of location pinion rack through the spliced pole with the second end assembly connection that resets is as an organic whole, the spliced pole passes first backup pad and second backup pad.
Furthermore, keep off the position part and be the fender position round pin, keep off the position round pin with rack plate fixed connection has seted up first arc opening on the baffle, the fender position round pin passes first arc opening.
Furthermore, the baffle with the rack plate assembly in the both sides of second backup pad, second arc opening has been seted up in the second backup pad, the fender position round pin still passes second arc opening.
Further, the rack plate is assembled between the first supporting plate and the second supporting plate, a third arc-shaped opening is formed in the first supporting plate, and the gear pin further penetrates through the third arc-shaped opening.
Further, the rack plate comprises six teeth, and the positioning toothed plate comprises two teeth.
Further, the shell comprises an upper shell and a lower shell, and the upper shell is detachably connected with the lower shell.
Furthermore, the elastic component is a tension spring, one end of the tension spring is connected with the connecting column, and the other end of the tension spring is connected with the supporting plate.
Further, the device also comprises an installation plate, and installation holes are formed in the first support plate and the second support plate.
Furthermore, the two ends of the mounting plate are provided with connecting holes.
Compared with the prior art, the utility model discloses an engineering machine tool armrest has following characteristics and advantage:
the engineering machinery seat armrest of the utility model has simple and reliable adjustment operation, and is convenient to control the adjustment angle of the seat armrest; the angle is quantitatively adjusted, so that the seat armrests are fixed at a certain angle position to adapt to the sitting posture of a driver, and a good man-machine relationship is realized.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an exploded view of an engineering machinery armrest structure according to an embodiment of the present invention;
fig. 2 is an assembly view of an engineering machinery armrest shell and a fixing plate according to an embodiment of the present invention;
fig. 3 is an assembly view of the armrest housing and the fixing plate of the engineering machinery seat according to the embodiment of the present invention;
fig. 4 is an assembly view of an armrest support assembly and a housing of a construction machine according to an embodiment of the present invention;
fig. 5 is a structural view of an armrest support assembly of a construction machine according to an embodiment of the present invention;
fig. 6 is a schematic view of a rotation range of an armrest of a construction machine according to an embodiment of the present invention;
wherein,
1. the fixing plate, 2, the housing, 21, the upper housing, 22, the lower housing, 31, the rotating shaft, 32, the lock nut, 33, the first flat washer, 34, the bushing, 41, the mounting plate, 42, the first bolt, 43, the first nut, 44, the connecting screw, 5, the bracket assembly, 51, the first support plate, 511, the third arc opening, 512, the first mounting hole, 52, the second support plate, 521, the second arc opening, 522, the second mounting hole, 531, the positioning rack, 5311, the positioning rack first end, 5312, the positioning rack second end, 532, the rack plate, 541, the reset plate, 5411, the reset plate first end, 5412, the reset plate second end, 553, the baffle, 5421, the first arc opening, 551, the second bolt, 552, the second nut, the toothed plate, the second flat washer, 56, the connecting column, 57, the gear pin, 58, the tension spring.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 5, the present embodiment provides an engineering machinery armrest, including a fixed plate 1, a rotating shaft 31 fixedly connected to the fixed plate 1, a housing 2 hinged to the fixed plate 1 through the rotating shaft 31, and a bracket assembly 5 disposed inside the housing 2, where the bracket assembly 5 includes a support plate, a positioning mechanism, a reset mechanism, an elastic component, and a gear component. In this embodiment, the rotating shaft 31 is sequentially assembled with the first support plate 51, the rack plate 532, the second support plate 52, and the blocking plate 542, and fixed by the bushing 34, the first flat washer 33, and the lock nut 32. The housing 2 comprises an upper housing 21 and a lower housing 22, wherein the upper housing 21 is detachably connected with the lower housing 22 through a connecting screw 44, so that the upper housing 21 is conveniently detached from the lower housing 22 to check the working condition of the bracket assembly 5 inside the housing 2. The supporting plate comprises a first supporting plate 51 and a second supporting plate 52, one end of the first supporting plate 51 and one end of the second supporting plate 52 are hinged to the rotating shaft 31 respectively, the other end of the first supporting plate 51 is provided with a first mounting hole 512, the other end of the second supporting plate 52 is provided with a second mounting hole 522, the plate body of the mounting plate 41 penetrates through the first mounting hole 512 and the second mounting hole 522, two ends of the mounting plate 41 are provided with connecting holes, and a first bolt 42 penetrates through the lower shell 22 and the connecting holes and is connected with a first nut 43 to enable the first supporting plate 51 and the second supporting plate 52 to be fixedly connected with the lower shell 22. In this embodiment, a second bolt 551 is fixedly connected to the first support plate 51, and the second bolt 551 passes through the first end 5311 of the positioning toothed plate on the positioning toothed plate 531, the upper round hole on the second support plate 52, and the first end 5411 of the reset plate on the 541, and is fixed by the second flat washer 553 and the second nut 552, so that the first end 5311 of the positioning toothed plate is hinged to the first support plate 51, and the first end 5411 of the reset plate is hinged to the second support plate 52. One end of the tension spring 58 is connected to the connecting column 56, and the other end is connected to the first supporting plate 51, so that the positioning toothed plate 531 is clamped on the rack plate 532 by the elastic force of the positioning toothed plate. The reset mechanism includes a reset plate 541 and a blocking plate 542 that can slide relative to the reset plate 541. The second end 5412 of the reset plate is fixedly connected with a connecting column 56, and the connecting column 56 passes through the oblong holes on the first supporting plate 51 and the oblong holes on the second supporting plate 52 and is integrally assembled and connected with the second end 5312 of the positioning toothed plate. The rack plate 532 is fixedly connected with the rotating shaft 31, the stop pin 57 is fixedly connected with the rack plate 532, the baffle plate 542 is provided with a first arc-shaped opening 5421, the stop pin 57 penetrates through the first arc-shaped opening 5421 to be movably connected with the baffle plate 542, the baffle plate 542 is hinged with the rotating shaft 31 and penetrates through the first arc-shaped opening 5421 on the baffle plate 542 by the stop pin 57, and therefore the baffle plate 542 can swing relative to the rotating shaft 31. In this embodiment, the baffle plate 542 and the rack plate 532 are assembled on two sides of the second support plate 52, the second support plate 52 is provided with a second arc-shaped opening 521, the first support plate 51 is provided with a third arc-shaped opening 511, and the stop pin 57 further passes through the second arc-shaped opening 521 and the third arc-shaped opening 511, so that the assembly structure layout of the first support plate 51, the second support plate 52, the baffle plate 542 and the rack plate 532 is compact.
Referring to fig. 1 to 5, the working process of the engineering machinery seat armrest in the embodiment will be described in detail below with reference to fig. 6: in this embodiment the positioning mechanism include the location pinion rack 531 and can with the rack plate 532 of location pinion rack 531 block, including two teeth on the location pinion rack 531, including six teeth on the rack plate 532, two teeth of location pinion rack 531 can block in proper order on every tooth on the rack plate 532 for the location pinion rack 531 can be under the effect of extension spring 58 with the firm block of rack plate 532, guarantee that casing 2 can not rotate down. The positioning rack plate 531 is arranged to be engaged with the adjacent teeth of the rack plate 532, so that the rack assembly 5 rotates 6 degrees (other angles can be arranged) relative to the rotating shaft 31, and the housing 2 is driven to rotate 6 degrees relative to the rotating shaft 31. When the housing 2 is subjected to an upward force, the locator rack 531 disengages from the rack plate 532. When the housing 2 is rotated by 6 ° and the upward force is removed, the positioning rack 531 is engaged with the rack plate 532 again due to the pulling force of the tension spring 58, so that the housing 2 cannot be rotated downward. The shell 2 is in a horizontal position, and the horizontal position can be adjusted downwards by 2 levels and upwards by 3 levels. We define the position of the housing 2 at the lowest stage as the initial position, and we can set the positioning rack bar 531 to rotate 30 ° at the rack plate 532 rearward from the initial position, thereby rotating the housing 2 by 30 ° with respect to the rotating shaft 31. When the positioning toothed plate 531 is engaged with the teeth on the top of the rack plate 532, the housing 2 continues to rotate, at this time, the blocking plate 542 starts to abut against the reset plate 541, the reset plate 541 drives the positioning toothed plate 531 to disengage from the rack plate 532 through the connecting column 56, the housing 2 continues to rotate upwards, the reset plate 541 starts to slide on the blocking plate 542, and the positioning toothed plate 531 and the rack plate 532 are always in a disengaged state until the end position is reached. We can arrange that the reset plate 541 slides relative to the blocking plate 542 to rotate the housing 2 to the top by 82 ° relative to the rotation shaft 31. We define the position of the housing 2 rotated 112 (other angles may be provided) to the top as the end position. In the process that the shell 2 rotates downwards from the tail end position to the initial position, the baffle plate 542 is always pressed against the reset plate 541, so that the positioning toothed plate 531 and the rack plate 532 are always in a disengaged state, when the shell 2 rotates to the initial position, the gear pin 57 catches the baffle plate 542 to disengage the reset plate 541 from the baffle plate 542, the positioning toothed plate 531 is attached to the rack plate 532 again, and a new cycle is started.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.