CN202222155U

CN202222155U - Cutter holder friction slip protector for gasoline lawn mower

Info

Publication number: CN202222155U
Application number: CN201120278025XU
Authority: CN
Inventors: 吴海林
Original assignee: SHANGHAI WORTH GARDEN PRODUCTS CO Ltd
Current assignee: SHANGHAI WORTH GARDEN PRODUCTS CO Ltd
Priority date: 2011-08-02
Filing date: 2011-08-02
Publication date: 2012-05-23
Anticipated expiration: 2021-08-02

Abstract

The utility model provides a cutter holder friction slip protector for a gasoline lawn mower, which comprises a cutter holder and a blade. The cutter holder friction slip protector for the gasoline lawn mower is characterized in that the blade is integrally connected with the cutter holder to form a whole through a screw, the whole is attached to a clutch shaft sleeve which is mounted on a motor or engine spindle of the gasoline lawn mower and connected through a key, and the blade locking screw is fixed on the motor or engine spindle. When the blade meets high-resistance obstacles such as stones, steel pipes, locked-rotors or the like during mowing, the contact surface of the cutter holder slips on the clutch shaft sleeve, and the blade locking screw rotates relative to the contact surface of the cutter holder. The motor or engine spindle is protected from damage, safety of an operator is protected, and the cutter holder friction slip protector is simple in structure and low in cost.

Description

A kind of tool rest friction slip protective device that is used for the gasoline hay mower

Technical field

The utility model relates to a kind of intelligent belt clamping device that is used for the gasoline hay mower.

Background technology

The protective device that is used for the gasoline hay mower in the market generally all is to be employed in to add the structure that one or two the aluminium pin of protecting usefulness or guard pin and tool rest are made of one on the tool rest.Like this in the mowing process blade when running into big resistance situation such as big stone, steel nail or stall; The guard pin fracture; Thereby blade and motor or engine output shaft are relatively rotated; Protect motor or engine spindle not to be damaged, also avoided the personal injury that causes owing to there not being protective device to overturn.But this protection structure perhaps is made of one guard pin and tool rest owing to needing to add the aluminium pin, therefore, and its complex manufacturing technology, and cost is high.

Summary of the invention

The purpose of the utility model provides a kind of make simple and the low protective device that is used for the gasoline hay mower of cost.

In order to achieve the above object; The technical scheme of the utility model has provided a kind of tool rest friction slip protective device that is used for the gasoline hay mower; Comprise tool rest and blade; It is characterized in that: through screw blade is connected on the tool rest and forms an integral body, the clutch axle sleeve applying that is connected through key on this integral body and motor that is contained in the gasoline hay mower or the engine spindle, and be fixed on motor or the engine spindle through the insert retention screw.

When the utility model blade in the mowing process was run into the barrier of big resistance such as stone steel pipe or stall, tool rest and clutch shaft cover contact-making surface skidded, and also relatively rotate between insert retention screw and the tool rest contact-making surface simultaneously.Protected electromotor or engine spindle not to be damaged, also protected operator's safety, simple in structure simultaneously, cost is lower.

Description of drawings

Fig. 1 looks cutaway view for a kind of master who is used for the tool rest friction slip protective device of gasoline hay mower that the utility model provides;

A kind of vertical view that is used for the tool rest friction slip protective device of gasoline hay mower that Fig. 2 provides for the utility model.

Embodiment

For making the utility model more obviously understandable, now with a preferred embodiment, and conjunction with figs. elaborates as follows.

Like Fig. 1 and shown in Figure 2; A kind of tool rest friction slip protective device that is used for the gasoline hay mower that the utility model provides; Comprise tool rest 3, blade 1 and fan 2 are connected on the tool rest 3, be combined into an integral body through hex head screw 7; Be contained in motor or engine spindle 5 on the clutch axle sleeve 4 that is connected through key fit, be fixed on motor or the engine spindle 5 through insert retention screw 6 at last.

When blade 1 is run into the barrier of big resistance such as stone steel pipe or stall in the mowing process; Tool rest 3 skids with clutch axle sleeve 4 contact-making surfaces; Also relatively rotate between insert retention screw 6 and tool rest 3 contact-making surfaces simultaneously; Thereby protected electromotor or engine spindle not to be damaged, also protected operator's safety.

Claims

1. tool rest friction slip protective device that is used for the gasoline hay mower; Comprise tool rest (3) and blade (1); It is characterized in that: through screw blade (1) is connected tool rest (3) and goes up formation one integral body; This integral body goes up the clutch axle sleeve (4) that is connected through key with motor that is contained in the gasoline hay mower or engine spindle (5) and fits, and is fixed on motor or the engine spindle (5) through insert retention screw (6).