CN2189558Y - Chair shock-proof device of tractor - Google Patents

Abstract

The utility model relates to a chair shockproof device of tractors, which is characterized in that an outer sleeve is downwardly fixed on a chair bottom frame; an inner sleeve is fixed on a bracket; the inner sleeve and the outer sleeve are glidingly inserted with each other and are positioned; a compression damping spring is arranged between the outer sleeve and the inner sleeve. The utility model has favorable vibration damping effect, which can be applied on tractors and other vehicles.

Description

Chair shock-proof device of tractor

The utility model relates to a kind of seat vibration damping, particularly a kind of shock attenuation unit of trac. seat.

At present, the tractor driving seat, rigid attachment is seat chair underframe extension spring minimizing vibration on the trac. carriage, and its shortcoming is a not buffering of seat itself, and chaufeur is driven on uneven road for a long time, and very easily fatigue also may be damaged health.

The purpose of this utility model is to provide a kind of cushion characteristic good, does not have tired seat during driving.

Technical solution of the present utility model is: a kind of trac. seat shock attenuation unit, comprise that spring, outer sleeve are fixed on the seat underframe downwards, inner sleeve is fixed on the carriage, and inner sleeve and outer sleeve sliding plug are also spacing, and the compression damper spring is positioned at outer sleeve, inner sleeve.Prevent that the inhibiting device that spring is deviate from from being the outer sleeve in-flanges, the inner sleeve flanging.Or draw anticreep spacing with the bolt string that is fixed on seat underframe and the carriage.

According to technique scheme, on the seat underframe,, can improve the defective of old-fashioned seat by the extension spring vibration damping on the underframe by a plurality of damper spring vibration dampings, when operator on the tractor is driven on rugged road surface, alleviate and jolt, good comfort is arranged.

Accompanying drawing 1 is looked cut-away view for the utility model master;

Accompanying drawing 2 is the birds-eye view of Fig. 1;

Accompanying drawing 3 is looked cut-away view for a kind of embodiment master of the utility model;

Accompanying drawing 4 is looked cut-away view for a kind of embodiment master of the utility model.

In conjunction with the accompanying drawings, embodiment of the present utility model is described, a kind of trac. seat shock attenuation unit, comprise spring, outer sleeve 1 is fixed on downwards on the seat underframe 5, inner sleeve 2 is fixed on the carriage 4, inner sleeve 2 and outer sleeve 1 sliding plug and spacing, and compression damper spring 3 is positioned at outer sleeve 1, inner sleeve 2.Prevent that the inhibiting device that spring is deviate from from being outer sleeve 1 in-flanges, inner sleeve 2 flangings.Or bolt 6 strings that are fixed on seat underframe 5, the carriage 4 draw anticreep spacing.Another embodiment directly draws spacing by the bolt string that is fixed on seat underframe 5, the carriage 4 for removing inner sleeve 2, outer sleeve 1.

Claims (3)

1, a kind of trac. seat shock attenuation unit, comprise spring, it is characterized in that outer sleeve (1) is fixed on the seat underframe (5) downwards, inner sleeve (2) is fixed on the carriage (4), inner sleeve (2) is positioned at outer sleeve (1), inner sleeve (2) with outer sleeve (1) sliding plug and spacing, compression damper spring (3).

2, a kind of trac. seat shock attenuation unit according to claim 1 is characterized in that preventing that the inhibiting device that spring is deviate from from being outer sleeve (1) in-flanges, inner sleeve (2) flanging.

3, a kind of trac. seat shock attenuation unit according to claim 1, bolt (6) string that it is characterized in that being fixed on seat underframe (5), the carriage (4) draws anticreep spacing.

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