CN2671962Y

CN2671962Y - Rope fastener

Info

Publication number: CN2671962Y
Application number: CN 03218406
Authority: CN
Inventors: 方济道
Original assignee: Xian Xinzhu Fire and Rescue Equipment Co Ltd
Current assignee: Xian Xinzhu Fire and Rescue Equipment Co Ltd
Priority date: 2003-01-07
Filing date: 2003-01-07
Publication date: 2005-01-19
Anticipated expiration: 2013-01-07

Abstract

The utility model belongs to the filed of machinery, which is a rope fastener. The rope fastener can bind objects easily which comprises a small shaft (1), a left spring (2), a left ratchet pawl (3), a left bracket (4), a ratchet wheel (5), a pin shaft (6), an axis (7), a cushion ring (8), a right ratchet pawl (9), a right bracket (10), a right spring (11), etc. The utility model uses braided tapes to bind objects such as cotton, chemical fabrics, etc. The rope fastener is exclusively used at the place where binding tapes are unable to be used such as steel cable, paper twine (tape), etc, and needs relatively great binding pulling force. When on the job, the ratchet pawl is toggled the ratchet wheel to rotate, making the braided tapes reel on a ratchet shaft, and thereby making the objects bind together tightly.

Description

Boomer

The utility model belongs to mechanical field, relates to a kind of mechanical structure device, is the novel boomer of a kind of mechanical transmission-type.

Domestic existing be that the boomer of purpose mainly contains two kinds to tie up object, a class is a compress, as shown in Figure 2, Fig. 2 is the section-drawing of compress, is characterized in that the strapping material of using is paper tape or plastic tape.The shortcoming of compress is:

1, is only applicable to tie up objects such as carton;

2, the tensile force f＜15KG of strapping;

3, owing to part processing complexity such as gear A, tooth bar B, machine adds reasons such as the essential processing in surface, and therefore, the cost of compress is higher.

Another kind of boomer is the boomer of using on automobile, the train that is used for tying up round log, tubing etc., and as shown in Figure 3, Fig. 3 is the front elevation of boomer, and the shortcoming of this boomer is:

1, strapping can only use steel rope;

2, the structure heaviness, coarse, volume is big.

The purpose of this utility model is that a kind of later-model boomer will be provided, and it has compact conformation, and is easy to use, reliable, and Applicable scope extensively reaches the big characteristics of pulling force.

The purpose of this utility model is achieved in that

1, most of part such as ratchet, ratchet adopts thin blanked part and bilateral configuration;

2, frame and handle unite two into one;

3, designed the cam of control ratchet work;

4, strapping uses chemical fibre braid, tensile force f 〉=6000N.

Thereby compact conformation, and greatly reduce cost.

Below in conjunction with the Fig. 1 and the specific embodiment the utility model is described in further detail.

Fig. 1 is a front elevation of the present utility model.

The structure of the utility model boomer is as shown in Figure 1: (4) are left socle, (10) be right support, except that ratchet (5), all the other all parts all are installed on the left and right support, left and right support is linked together by axle (7), and left and right support can be done swing relatively around axle in 20 °～180 ° scopes.(when relative position is 180 °, being position shown in Figure 1).Left and right support is the cam of a particular curve with the gabarit of axle (7) abutting end, be used for controlling the characteristics of motion (enter in the teeth groove of ratchet (5) or withdraw from) of left pawl (3) and right ratchet (9), left spring (2) and right spring (11) are compression springs, left and right ratchet is tightly pressed to the surface of ratchet (5) or cam, two ends bearing pin (6) and packing ring (8) are in order to stop axle the moving axially of (7), and ratchet (5) is fixed together with axle (7).

Principle of work of the present utility model is: strapping one end is fixed on the little axle (1), the other end passes the axial pass trough of axle (7), when right support (10) is swung with respect to left socle (4), right ratchet (9) promotes ratchet (5) rotation, thereby axle (7) is rotated together, when right support (10) when swinging round about, because the stuck ratchet of left pawl (3) (5) makes it and can not rotate, so axle (7) does not rotate, swing moves in circles, just strapping is wound into axle (7) and has got on, promptly strained strapping, reached the purpose of " tight rope ".

When left and right support relative position is in about 180 °, because the control of cam, left and right ratchet withdraws from ratchet (5) teeth groove simultaneously, and ratchet (5) is free to rotate with coaxial (7), the strapping of tension can loosen, and insertion axle (7) is gone up the strapping of groove and can be extracted.

Claims

1, boomer, form by little axle (1), left spring (2), left pawl (3), left socle (4), ratchet (5), bearing pin (6), axle (7), packing ring (8), right ratchet (9), right support (10), right spring (11), be primarily characterized in that left spring (2) and left pawl (3), right spring (11) and right ratchet (9) are installed in respectively on left socle (4) and the right support (10), left socle (4) and right support (10) link together by axle (7).

2, boomer according to claim 1 is characterized in that support and handle unite two into one, and left and right symmetry.

3, boomer according to claim 1 is characterized in that left and right support one end has the cam structure of control ratchet work (rise, descend).

4, boomer according to claim 1 is characterized in that left socle (4), right support (10) can do swing relatively around axle (7) in 20 °～180 ° scopes.

5, boomer according to claim 1 is characterized in that ratchet (5) and axle (7) are fixed together.