CN218536430U

CN218536430U - Separable adjustable backrest assembly

Info

Publication number: CN218536430U
Application number: CN202223119939.9U
Authority: CN
Inventors: 尚正海; 胡超; 张玉伟; 叶飞; 杜晓莉
Original assignee: Anhui Heli Co Ltd
Current assignee: Anhui Heli Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-02-28
Anticipated expiration: 2032-11-22

Abstract

The utility model relates to a tractor technical field to an adjustable back subassembly of disconnect-type is disclosed, which comprises a vehicle rack, the lateral wall of frame is provided with back mechanism, back mechanism comprises lower back subassembly and last back subassembly, back subassembly is fixed with the frame down, the lateral wall of frame is provided with telescopic machanism, telescopic machanism's removal end runs through back subassembly down and fixes the bottom at last back subassembly, the lateral wall of frame and the outside cover that is located telescopic machanism are equipped with waterproof box, be provided with locking mechanism between frame and the lower back subassembly. The utility model discloses, through the height between back subassembly and the last back subassembly under the regulation, both can change the distance between back and the frame bottom to adapt to different height tractor drivers, this adjustable back suitability is strong.

Description

Separable adjustable backrest assembly

Technical Field

The utility model relates to a tractor technical field especially relates to adjustable back subassembly of disconnect-type.

Background

In order to improve the driving experience of a tractor driver and improve the working efficiency of the driver, engineers propose that the tractor designs a tractor backrest which can be relied by the tractor driver and further improve the tractor backrest on the basis of the design; like chinese utility model patent publication No. CN205220841U "back adjustable type tractor that drives in station", need realize the regulation to the back height through the mode of manual regulation, when not considering driver height-adjusting, through the design of the back of the radian of man-machine, make health and back laminating, can not satisfy different height drivers' demand to the back height accurate adjustment, designed adjustable back subassembly of disconnect-type for this reason.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adjustable back subassembly of disconnect-type, the suitability is strong.

According to the utility model provides an adjustable back subassembly of disconnect-type, which comprises a vehicle rack, the lateral wall of frame is provided with back mechanism, back mechanism comprises back subassembly and last back subassembly down, back subassembly is fixed with the frame down, the lateral wall of frame is provided with telescopic machanism, telescopic machanism's removal end runs through back subassembly down and fixes the bottom at last back subassembly, the lateral wall of frame and the outside cover that is located telescopic machanism are equipped with waterproof box, be provided with locking mechanism between frame and the back subassembly down.

Preferably, a slide rail is fixed at the top of the lower backrest assembly, a through hole is formed in the middle of the lower backrest assembly, and an arc-shaped stopping portion is arranged at the top of the lower backrest assembly.

Preferably, the rear side wall of the upper backrest component is provided with a sliding groove, the side wall of the upper backrest component is provided with a mounting groove, and the bottom of the upper backrest component is provided with a fastening hole.

Preferably, the moving end of the telescopic mechanism extends into the mounting groove, a fixing pin for locking the moving end of the telescopic mechanism is embedded in the mounting groove, a fastening bolt is installed in the fastening hole in a threaded manner, and the fastening bolt is fixedly connected with the fixing pin.

Preferably, locking mechanism includes a plurality of slides and buckle, a plurality of bayonets have been seted up on the surface of slide, but buckle and slide between the lock joint fix.

Preferably, a plurality of locking bolts are fixed between the frame and the lower back assembly and the locking mechanism.

The utility model provides a beneficial effect is: through the height between back subassembly and the last back subassembly under the regulation, both can change the distance between back and the frame bottom to adapt to different height tractor drivers, this adjustable back suitability is strong.

Drawings

FIG. 1 is a perspective view of one embodiment of a tractor split adjustable backrest assembly provided by the present product;

FIG. 2 is a perspective view of the tractor disconnect-type adjustable backrest assembly of FIG. 1 from another perspective;

FIG. 3 is a perspective mechanism schematic view of the backrest mechanism of FIG. 1;

FIG. 4 is a perspective mechanism schematic view of the backrest mechanism of FIG. 3 from another perspective;

FIG. 5 is a partial cross-sectional view of the backrest mechanism of FIG. 1;

in the figure: the vehicle-mounted seat back comprises a frame 1, a backrest mechanism 2, a lower backrest component 21, a sliding rail 211, a through hole 212, a stopping part 213, an upper backrest component 22, a sliding groove 221, a mounting groove 222, a fastening hole 223, a telescopic mechanism 3, a waterproof box 4, a fixing pin 5, a fastening bolt 6, a locking mechanism 7, a slideway 71, a bayonet 711, a bayonet 72 and a locking bolt 8.

Detailed Description

Referring to fig. 1-5, a separable adjustable backrest assembly comprises a frame 1, a backrest mechanism 2 is arranged on the side wall of the frame 1, the backrest mechanism 2 is composed of a lower backrest assembly 21 and an upper backrest assembly 22, the lower backrest assembly 21 is fixed with the frame 1, a telescopic mechanism 3 is arranged on the side wall of the frame 1, a moving end of the telescopic mechanism 3 penetrates through the lower backrest assembly 21 and is fixed at the bottom of the upper backrest assembly 22, a waterproof box 4 is sleeved on the side wall of the frame 1 and outside the telescopic mechanism 3, and a locking mechanism 7 is arranged between the frame 1 and the lower backrest assembly 21.

The top of the lower backrest module 21 is fixed with a slide rail 211, the middle of the lower backrest module 21 is provided with a through hole 212, and the top of the lower backrest module 21 is provided with an arc-shaped stopping portion 213.

The rear side wall of the upper backrest assembly 22 is provided with a sliding groove 221, the side wall of the upper backrest assembly 22 is provided with a mounting groove 222, and the bottom of the upper backrest assembly 22 is provided with a fastening hole 223.

The removal end of telescopic machanism 3 extends into mounting groove 222, the fixed pin 5 that is used for locking telescopic machanism 3 removal end is inlayed to the inside of mounting groove 222, fastening bolt 6 is installed to the inside screw thread of fastening hole 223, and fixed connection between fastening bolt 6 and the fixed pin 5, it is fixed with telescopic machanism 3 removal end to realize through setting up fixed pin 5, the locking to fixed pin 5 is realized to rethread installation fixed pin 5, realize the fixed of a heavy insurance nature to fixed pin 5, the completion is connected the back, the realization is fixed telescopic machanism 3 and last back subassembly 22.

The locking mechanism 7 comprises a plurality of slide ways 71 and buckles 72, a plurality of bayonets 711 are formed in the surfaces of the slide ways 71, the buckles 72 and the slide ways 71 can be fastened and fixed, and the buckles 72 and the bayonets 711 are separated by adjusting the clamping relation between the buckles 72 and the slide ways 71, so that the slide ways 71 can slide and further adjust the backrest mechanism 2.

A plurality of locking bolts 8 are fixed between the frame 1 and the lower back assembly 21 and the locking mechanism 7.

When the device is used, the locking mechanism 7 is manually adjusted to perform unlocking operation, the buckle 72 is separated from the bayonet 711, the slide way 71 can send out sliding to adjust the backrest mechanism 2, the upper backrest assembly 22 and the lower backrest assembly 21 are driven to move relatively by controlling the operation of the telescopic mechanism 3, and the structure of the backrest mechanism 2 is adjusted to adapt to tractor drivers with different heights.

Claims

1. Adjustable back subassembly of disconnect-type, its characterized in that: the improved bicycle frame comprises a frame, the lateral wall of frame is provided with back mechanism, back mechanism comprises back subassembly and last back subassembly down, back subassembly is fixed with the frame down, the lateral wall of frame is provided with telescopic machanism, telescopic machanism's removal end runs through back subassembly down and fixes the bottom at last back subassembly, the lateral wall of frame and the outside cover that is located telescopic machanism are equipped with waterproof box, be provided with locking mechanism between frame and the back subassembly down.

2. The split adjustable backrest assembly of claim 1, wherein: the top of back subassembly is fixed with the slide rail down, the through-hole has been seted up at the middle part of back subassembly down, the top of back subassembly is provided with curved backstop portion down.

3. The split adjustable backrest assembly of claim 1, wherein: the backrest comprises an upper backrest component and a lower backrest component, wherein the rear side wall of the upper backrest component is provided with a sliding groove, the side wall of the upper backrest component is provided with a mounting groove, and the bottom of the upper backrest component is provided with a fastening hole.

4. The split adjustable backrest assembly of claim 3, wherein: the telescopic mechanism is characterized in that the moving end of the telescopic mechanism extends into the mounting groove, a fixing pin used for locking the moving end of the telescopic mechanism is embedded in the mounting groove, a fastening bolt is installed in the fastening hole in a threaded mode, and the fastening bolt is fixedly connected with the fixing pin.

5. The split adjustable backrest assembly of claim 1, wherein: the locking mechanism comprises a plurality of slideways and buckles, a plurality of bayonets are formed in the surfaces of the slideways, and the buckles and the slideways can be fastened and fixed.

6. The split adjustable backrest assembly of claim 1, wherein: and a plurality of locking bolts are fixed between the frame and the lower backrest assembly as well as between the frame and the locking mechanism.