CN103726657A

CN103726657A - Electric steel bar hook with overload protection

Info

Publication number: CN103726657A
Application number: CN201310596060.XA
Authority: CN
Inventors: 高静; 袁代华; 邓金智; 斯明玉
Original assignee: Chengdu Fanxinjia Technology Co Ltd
Current assignee: Hunan Jinrui Food Co ltd
Priority date: 2013-11-25
Filing date: 2013-11-25
Publication date: 2014-04-16
Anticipated expiration: 2033-11-25
Also published as: CN103726657B

Abstract

The invention provides an electric steel bar hook with overload protection. The steel bar hook comprises a shell, a motor located in the shell and a steel bar hook body partially located in the shell, wherein the steel bar hook body is fixedly provided with a first fluted disc, an output shaft of the motor is fixedly provided with a second fluted disc, the first fluted disc is meshed with the second fluted disc, and a spring is arranged between the inner wall of the shell and the first fluted disc. The output shaft of the motor transmits motions to the steel bar hook body through the first fluted disc and the second fluted disc which are meshed with each other, a steel bar tying wire is twisted, so that steel bars are firmly tied, if the steel bar tying wire on the steel bar hook body reaches a twisting limit, resistance borne by the steel bar hook body increases, the steel bar hook body almost stops rotating, at the time, the output shaft of the motor continues to rotate, due to the fact that the first fluted disc and the second fluted disc slip due to overload, rotation motions of the motor cannot be transmitted to the steel bar hook body, the steel bar tying wire stops being twisted before being twisted off, the steel bar tying wire is not prone to being broken, production cost is saved and work efficiency is improved.

Description

There is the electronic tied silk hook of overload protection

Technical field

The present invention relates to a kind of building implement, be specifically related to a kind of electronic tied silk hook with overload protection.

Background technology

Tying up of reinforcing bar is all often to adopt tied silk, and will use reinforced bar fasten yarn hook during with tied silk wiretie, thereby reinforced bar fasten yarn hook is as a kind of special tool, is widely used on building site.Existing its structure of reinforced bar fasten yarn hook is that one end is handle mostly, and the other end is forniciform tip composition, by the hook-shaped position on tip, catches on tied silk, rotates reinforced bar fasten yarn hook, and tied silk can be firm by reinforced-bar binding.In traditional method, concrete reinforcement worker adopts the colligation of tied silk hook manpower, and labour intensity is large, and the hand of holding tied silk hook repeats same action repeatedly, and workman's fatiguability, affects efficiency.For overcoming this defect, in prior art, also there is the motor of employing to drive tied silk hook, as the application number disclosure of the invention that is 201320064881.4 a kind of tied silk automatic binding device, comprise tied silk hook, described tied silk hook is located at external shell one end, in described external shell, be provided with motor and chip board, described motor is provided with tied silk hook, and described chip board is provided with motor.This tied silk automatic binding device has replaced traditional manual colligation by electric machine rotation tied silk hook, accelerated colligation speed, reduced constructor's labour intensity, also improved the efficiency of construction of reinforced bar binding wire binding simultaneously, but motor direct-drive tied silk hook rotates, the number of turns turning over along with tied silk is more, the load that motor consumes is larger, and between motor and tied silk hook without adjusting device, thereby very easily colligation of tied silk firmly under situation motor also in rotation, tied silk is also twisted several circles under the limiting case of tightening, thereby tied silk is very easily twisted into two parts, affect manufacturing cost, working time and operating efficiency.

Summary of the invention

The object of the present invention is to provide a kind of electronic tied silk hook with overload protection.

For achieving the above object, technical scheme of the present invention is:

A kind of electronic tied silk hook with overload protection; the motor and the part that comprise housing, are positioned at housing are positioned at the tied silk hook of housing; it is characterized in that: the second fluted disc on the output shaft that also comprise the first fluted disc of being fixedly installed on tied silk hook, is fixedly installed in motor; the first fluted disc and the second fluted disc are intermeshing, between the inwall of housing and the first fluted disc, are evenly equipped with some springs.

Further, output shaft is provided with brake gear, and housing is provided with the switch of controlling brake gear.

Beneficial effect of the present invention is:

1, the output shaft of motor passes motion to tied silk hook by intermeshing the first fluted disc and the second fluted disc, tighten tied silk reinforcing bar binding is firm, if the tied silk on tied silk hook reaches the limit of tightening, the suffered resistance of tied silk hook increases and almost stops operating, and now the output shaft of motor still rotates, because making the first fluted disc and the second fluted disc, overload there is skidding, rotatablely moving of motor cannot be passed to tied silk hook, tied silk stopped tightening before soon being twisted into two parts, tied silk is not easily broken, save cost of production, improved operating efficiency; And by motor, drive tied silk hook to replace traditional manual colligation, accelerated colligation speed, reduced constructor's labour intensity, improved the efficiency of construction of reinforced bar binding wire binding, the scope of application of the present invention is wide.

2, output shaft is provided with brake gear, and when skidding appears in the first fluted disc and the second fluted disc, output shaft is still rotating, press the switch on housing, brake gear is braked output shaft, has reduced two wearing and tearing that fluted disc skids and causes because of overload, thereby has improved its application life.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

The specific embodiment

Below in conjunction with accompanying drawing, the present invention will be further described:

As shown in the figure, a kind of electronic tied silk hook with overload protection, comprises housing 1, tied silk hook 3 and motor 2.Part tied silk hook 3, through the hole on housing 1, makes its part be positioned at housing 1, and another part is positioned at outside housing 1, and tied silk hook 3 can be around its axis rotation, and the tied silk hook 3 that is positioned at housing 1 is fixedly connected with the first fluted disc 6.Motor 2 is fixedly installed in housing 1, is fixedly connected with second fluted disc 7 suitable with the first fluted disc 6 on the output shaft 5 of motor 2, coils for the first time 6 and engages with the second fluted disc 7.Between the inwall of housing 1 and the first fluted disc 6, be evenly equipped with some springs 4, in order to make spring 4 fixations, can on the inwall of housing 1 and the first fluted disc 7, offer groove or the hole of for spring 4, locating.

When the present invention works, the output shaft of motor passes motion to tied silk hook by intermeshing the first fluted disc and the second fluted disc, and the rotation of tied silk hook, on reinforcing bar, makes reinforcing bar binding firm tied silk colligation; After reinforcing bar binding is firm, tightening tied silk needs larger power, before tied silk is about to be twisted into two parts, spring cannot provide enough large elastic force, overload causes the first fluted disc and the second fluted disc to start to skid, and the output shaft of motor cannot pass motion to tied silk hook, thereby tied silk is difficult for being twisted into two parts.The present embodiment can be by selecting the spring of different stiffness factors, adjusts the active force of the first fluted disc to the second fluted disc, thereby transmit different power, is applicable to the different tied silk of various screwing forces.

In addition, also can between tied silk hook 3 and the output shaft 5 of motor 2, speed changer be set, the angle turning over by the adjustable tied silk hook 3 of speed changer, makes tied silk not easily broken.The output shaft 5 of motor 2 is provided with brake gear 12, and housing 1 is provided with the switch 11 of controlling brake gear 12.When output shaft 4 is separation with tied silk hook 3, output shaft 4 is still rotating, now push switch 11, and brake gear 12 is braked output shaft 5.

Claims

1. one kind has the electronic tied silk hook of overload protection; the motor (2) and the part that comprise housing (1), are positioned at housing (1) are positioned at the tied silk hook (3) of housing (1); it is characterized in that: the second fluted disc (7) on the output shaft (5) that also comprise the first fluted disc (6) of being fixedly installed on tied silk hook (3), is fixedly installed in motor (2); the first fluted disc (6) is intermeshing with the second fluted disc (7), between the inwall of housing (1) and the first fluted disc (6), is evenly equipped with some springs (4).

2. the electronic tied silk hook with overload protection as claimed in claim 1, is characterized in that: output shaft (5) is provided with brake gear (8), and housing (1) is provided with the switch of controlling brake gear (8).