CN211391122U

CN211391122U - Adjustable armrest box

Info

Publication number: CN211391122U
Application number: CN202020079526.4U
Authority: CN
Inventors: 庄鲲
Original assignee: Weifang Huilong Plastic Co ltd
Current assignee: Weifang Huilong Plastic Co ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-09-01
Anticipated expiration: 2030-01-14

Abstract

The utility model relates to an engineering machine tool equipment technical field, specifically speaking relates to a handrail case that can adjust. The seat comprises a front mounting bracket, a rear mounting bracket, a seat bracket, an upper arm, a lower arm and an adjusting arm, as well as a front-back adjusting mechanism and an angle adjusting mechanism, which are used for mounting an operating handle; the front-back adjusting mechanism comprises a front-back adjusting handle and a front-back adjusting inhaul cable; the angle adjusting mechanism comprises an angle adjusting handle, an angle adjusting inhaul cable and a tension spring. The utility model discloses simple structure, installation are simple and easy, convenient operation, need not to adjust with the help of relevant instrument can realize around and angle modulation from top to bottom, and the operator can adjust according to self actual conditions, and the design is more humanized, can satisfy the requirement of different operator comfort levels.

Description

Adjustable armrest box

Technical Field

The utility model relates to a harvester and engineering machine tool equipment technical field, specifically speaking relates to a handrail case that can adjust.

Background

The cab of the harvesting machine and the engineering machinery equipment is usually provided with an armrest box for supporting the arms of an operator, so that the comfort of the operator in long-time operation is improved. Most of the existing armrest boxes are of fixed structures, the height and the angle of the existing armrest boxes cannot be adjusted according to the actual conditions of operators, the design is not humanized enough, and the requirements of comfort levels of different users are difficult to meet.

Disclosure of Invention

An object of the utility model is to provide a handrail case that can adjust to solve above-mentioned technical problem.

In order to solve the above problems, the utility model adopts the following technical scheme:

the utility model provides a handrail case that can adjust which characterized in that: the seat comprises a front mounting bracket, a rear mounting bracket, a seat bracket, an upper arm, a lower arm and an adjusting arm, as well as a front-back adjusting mechanism and an angle adjusting mechanism, which are used for mounting an operating handle; the tail part of the front mounting bracket is fixedly connected with the front end of the rear mounting bracket; the top of the adjusting arm is provided with a slide rail, the rear mounting bracket is provided with a slide way, and the slide rail is clamped in the slide way; the rear mounting bracket is provided with a positioning pin for locking the front and rear positions of the rear mounting bracket and the adjusting arm; the fourth pin shaft at the front end of the upper arm is hinged to the upper part of the adjusting arm, and the rear end of the upper arm is hinged to the seat support through the first pin shaft; the front end of the lower arm is hinged to the lower part of the adjusting arm through a third pin shaft, the rear end of the lower arm is hinged to the seat support through a second pin shaft, and an angle locking mechanism is assembled at the third pin shaft; the front and rear adjusting mechanism comprises a front and rear adjusting handle and a front and rear adjusting inhaul cable, and two ends of the front and rear adjusting inhaul cable are respectively connected with the front and rear adjusting handle and the positioning pin; the angle adjusting mechanism comprises an angle adjusting handle, an angle adjusting inhaul cable and a tension spring, a handle bracket of the angle adjusting handle is hinged to the side wall of the rear mounting bracket through a fifth pin shaft, one end of the angle adjusting inhaul cable is connected with the angle locking mechanism, and the other end of the angle adjusting inhaul cable is connected to the tail end of the handle bracket of the angle adjusting handle; and two ends of the tension spring are respectively connected to the first pin shaft and the third pin shaft.

Has the advantages that: compared with the prior art, the utility model discloses simple structure, installation are simple and easy, convenient operation, need not to adjust with the help of relevant instrument can realize around and angle from top to bottom, and the operator can adjust according to self actual conditions, and the design is more humanized, can satisfy the requirement of different operator comfort levels.

Drawings

Fig. 1 is a schematic side view of an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a left side view of fig. 1.

In the figure: 1-upper arm; 2-a seat support; 3-lower arm; 4-angle adjusting inhaul cable; 5-adjusting the arm; 6-adjusting the zipper back and forth; 7-front mounting a bracket; 8-adjusting the handle back and forth; 9-an angle adjustment handle; 10-rear mounting a bracket; 11-a tension spring; 12-a locating pin; 13-an angle locking mechanism; a-a first pin; b-a second pin shaft; c-a third pin shaft; d-a fourth pin shaft; e-a fifth pin shaft.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Example (b):

referring to fig. 1 to 3, the adjustable armrest box of the present embodiment includes a front mounting bracket 7 for mounting an operating handle, a rear mounting bracket 10, a seat bracket 2, an upper arm 1, a lower arm 3, and an adjusting arm 5, as well as a front-rear adjusting mechanism and an angle adjusting mechanism.

The tail part of the front mounting bracket 7 is fixedly connected with the front end of the rear mounting bracket 10. The top of the adjusting arm 5 is provided with a slide rail, the rear mounting bracket 10 is provided with a slide way, and the slide rail is clamped in the slide way. And a positioning pin 12 for locking the front and rear positions of the rear mounting bracket 10 and the adjusting arm 5 is arranged on the rear mounting bracket 10. The fourth pin shaft D at the front end of the upper arm 1 is hinged to the upper part of the adjusting arm 5, and the rear end of the upper arm is hinged to the seat support 2 through the first pin shaft A. The front end of the lower arm 3 is hinged to the lower portion of the adjusting arm 5 through a third pin shaft C, the rear end of the lower arm is hinged to the seat support 2 through a second pin shaft B, and an angle locking mechanism 13 is assembled at the position of the third pin shaft C.

The front and back adjusting mechanism comprises a front and back adjusting handle 8 and a front and back adjusting inhaul cable 6, and the two ends of the front and back adjusting inhaul cable 6 are respectively connected with the front and back adjusting handle 8 and the positioning pin 12.

The working principle of the front and back adjusting mechanism is as follows: the adjusting arm 5 slides on the inner slide rail by pushing the rear mounting bracket 10; in a normal state, the positioning pin 12 locks the front and back positions of the rear mounting bracket 10 and the adjusting arm 5; when the front-back adjusting handle 8 is lifted upwards, the front-back adjusting pull rope 6 unlocks the positioning pin 12, and then front-back movement adjustment can be achieved. In the front and back adjusting process, the front and back adjusting handle 8 is loosened, the positioning pin 12 is reset and bounces into the positioning groove, and the front and back movement locking is realized.

The angle adjusting mechanism comprises an angle adjusting handle 9, an angle adjusting inhaul cable 4 and a tension spring 11, a handle bracket of the angle adjusting handle 9 is hinged to the side wall of the rear mounting bracket 10 through a fifth pin shaft E, one end of the angle adjusting inhaul cable 4 is connected with an angle locking mechanism 13, and the other end of the angle adjusting inhaul cable is connected to the tail end of the handle bracket of the angle adjusting handle 9; and two ends of the tension spring 11 are respectively connected to the first pin shaft A and the third pin shaft C.

The working principle of the angle adjusting mechanism is as follows: the angle adjustment is realized by a quadrilateral linkage mechanism which is formed by taking a first pin shaft A, a second pin shaft B, a third pin shaft C and a fourth pin shaft D as four supporting points respectively; the upper arm 1 and the lower arm 3 can respectively rotate by taking the first pin shaft A and the second pin shaft B as centers under the action of external force; the rotation of the upper arm 1 and the lower arm 3 synchronously drives the adjusting arm 5 to rotate by a third pin shaft C and a fourth pin shaft D of a fulcrum, and the adjusting arm 5 is kept in a horizontal state in the rotating process, so that the up-and-down angle adjustment is realized; in order to ensure that the armrest box can stay at a certain angle in a movable range, an angle locking mechanism 13 is arranged at the third pin shaft C, when the angle adjusting handle 9 is lifted upwards, the handle bracket rotates around the fifth pin shaft E to drive the angle adjusting inhaul cable 4, so that the angle locking mechanism is unlocked, and under the action of the tension spring 11, the armrest box moves from bottom to top along the motion track of the quadrilateral linkage mechanism; when the up-down angle adjustment is finished, the angle adjusting handle 9 is loosened, the angle locking mechanism 13 is reset, and the angle locking is realized.

The present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only for illustrating the principle of the present invention, without departing from the spirit and scope of the present invention, the present invention can also have various changes and improvements, and these changes and improvements all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a handrail case that can adjust which characterized in that: comprises a front mounting bracket (7) for mounting an operating handle, a rear mounting bracket (10), a seat bracket (2), an upper arm (1), a lower arm (3), an adjusting arm (5), a front-back adjusting mechanism and an angle adjusting mechanism; the tail part of the front mounting bracket (7) is fixedly connected to the front end of the rear mounting bracket (10); the top of the adjusting arm (5) is provided with a slide rail, the rear mounting bracket (10) is provided with a slide way, and the slide rail is clamped in the slide way; the rear mounting bracket (10) is provided with a positioning pin (12) for locking the front and rear positions of the rear mounting bracket (10) and the adjusting arm (5); a fourth pin shaft (D) at the front end of the upper arm (1) is hinged to the upper part of the adjusting arm (5), and the rear end of the upper arm is hinged to the seat support (2) through a first pin shaft (A); the front end of the lower arm (3) is hinged to the lower part of the adjusting arm (5) through a third pin shaft (C), the rear end of the lower arm is hinged to the seat support (2) through a second pin shaft (B), and an angle locking mechanism (13) is assembled at the third pin shaft (C); the front-back adjusting mechanism comprises a front-back adjusting handle (8) and a front-back adjusting inhaul cable (6), and two ends of the front-back adjusting inhaul cable (6) are respectively connected with the front-back adjusting handle (8) and the positioning pin (12); the angle adjusting mechanism comprises an angle adjusting handle (9), an angle adjusting inhaul cable (4) and a tension spring (11), a handle bracket of the angle adjusting handle (9) is hinged to the side wall of the rear mounting bracket (10) through a fifth pin shaft (E), one end of the angle adjusting inhaul cable (4) is connected with an angle locking mechanism (13), and the other end of the angle adjusting inhaul cable is connected to the tail end of the handle bracket of the angle adjusting handle (9); and two ends of the tension spring (11) are respectively connected to the first pin shaft (A) and the third pin shaft (C).