CN201350866Y - Self-locking structure of hand puller - Google Patents

Abstract

A self-locking structure of a hand puller comprises: a ratchet part and a hand-pulling part, the ratchet part is connected with the hand-pulling part by a connecting rod, when the hand-pulling part is pulled, the ratchet wheel which can block the ratchet part rotates to make the connecting rod rotate in one direction, the central part of the ratchet part is provided with a limiting piece which is pushed by a spring and blocked to the ratchet wheel, the limiting piece is arranged in the track grooves at both sides of the ratchet part, wherein the peripheral surface of the ratchet wheel is equally provided with a plurality of unidirectional ratchets, the clamping edges of the ratchets are slightly sunk and respectively form a groove, so that an inverted hook-shaped buckling claw can be formed between the groove and the tooth top, the buckling claws are buckled and fixed with the limiting sheet, the limiting sheet is provided with a dodging space at the position corresponding to the ratchet wheel, so that a buckling block is actively formed in front of the limiting sheet due to the arrangement of the dodging space, the height difference between the block and the space is used to provide the pawl for the ratchet wheel to be locked.

Description

Self-locking structure of the handle

technical field

The utility model relates to a "self-locking structure of a hand puller", especially a device that can prevent the limit piece from being moved by others after the handle is removed, causing the rope to be loosened without being fixed. hand puller.

Background technique

After the truck is loaded with goods, the goods must be tied tightly with ropes to prevent the goods from falling during driving, and the ropes that bind the goods are too hard to tie them with bare hands, let alone tie the goods tightly Stability, therefore, must use the handle to tighten and fix the rope with the handle.

At present, the structure of the common detached handle is mostly shown in Figure 9, which mainly includes: a ratchet part 60 and a handle part 70, and the connecting rod 80 is used as the connection between the ratchet part 60 and the handle part 70. Engagement, when the handle part 70 is pulled, the ratchet 61 that can block the ratchet part 60 will rotate, so that the connecting rod 80 will rotate in one direction, and the rope wrapped around the connecting rod 80 can be relatively tightened, and The handle part 70 also has a pressing function. After pressing, the handle part 70 can be pulled, but the ratchet 61 is not rotated, so that the handle part 70 can be controlled to untie, or be separated from the ratchet part 60 and the connecting rod 80, In addition, the central part of the ratchet part 60 is provided with a limiting piece 63 pushed against the ratchet 61 by the spring 62 , and the limiting piece 63 is located in the track grooves 64 on both sides of the ratchet part 60 .

However, with the known structure as mentioned above, although the handle 70 can be removed after the goods are tied tightly, multiple groups of ratchet parts 60 can be provided to reach the same handle 70, but because the handle 70 is removed After that, there will be no object on the ratchet part 60 to block, so that others can directly move the stopper 63 backwards (as shown in Figure 10). The goods will fall relatively, so the structure still has design problems when it is used, and it is really necessary to improve and innovate.

Therefore, how to develop and improve the shortcomings of the above-mentioned known hand puller structure is actually the goal that the relevant industry needs to work hard to develop. It is designed based on experience, and after many discussions and sample tests, and many revisions and improvements, this utility model is released.

Utility model content

Technical problems to be solved:

It is known that after the handle part of the hand puller is removed, there will be no object on the ratchet part to block, so that others can directly push the limit piece backward, causing the rope to be loose without being fixed. Solve the technical problem point.

Technical features to solve the problem:

The utility model provides a self-locking structure of a hand puller, which includes: a ratchet part and a handle part, the ratchet part and the handle part are connected by a connecting rod, when the handle part is pulled Rotate the ratchet that can hold the ratchet part, so that the connecting rod rotates in one direction, and the rope wrapped around the connecting rod can be relatively tightened, and the hand pull part has a pressing function, which can be pulled after pressing. Pull the part, but do not turn the ratchet, so that the handle part can be controlled to untie the belt, or be separated from the ratchet part and the connecting rod, and the central part of the ratchet part is provided with a limit piece that is pushed against the ratchet by a spring. The limit piece is also located in the track grooves on both sides of the ratchet part, wherein, the peripheral surface of the ratchet wheel is evenly provided with a plurality of unidirectional ratchet teeth, and the locking edges of the ratchet teeth are slightly sunken and each forms a groove, so that A barbed claw can be formed between the groove and the top of the tooth, so that these claws can be used to lock and fix the limit piece. The limit piece is provided with a dodge space relative to the ratchet, so that the limit piece can Because of the setting of the dodging space, a buckle block is actively formed, and the buckle block forms a high and low drop with the dodging space, so as to use the drop to provide the clasp of the ratchet to buckle in, thereby obtaining the handle of the handle Self-locking structure.

Efficacy compared to previous techniques:

The utility model provides the self-locking structure of the hand puller, which uses the buckle claws to be locked with the buckle block, so that the limit piece cannot move backwards without being pulled, so when the puller is removed, it will The effect of the buckle can be used to prevent the limit piece from being moved due to the curiosity of others, that is, the phenomenon that the rope is not fixed and loosened, so that the tightly bound goods can be delivered smoothly.

Description of drawings

In order to enable the examiner to have a further understanding and understanding of the purpose, features and effects of this utility model, please refer to the following examples with reference to the accompanying drawings, and the detailed description is as follows, among which:

Fig. 1 is a three-dimensional assembled view of the utility model.

Fig. 2 is a three-dimensional exploded view of the utility model.

Fig. 3 is a combined sectional view of the utility model.

Fig. 4 is a perspective view of the utility model with the handle part removed.

Fig. 5 is a sectional view of the utility model with the handle part removed.

Fig. 6 is a diagram of another embodiment of the utility model.

Fig. 7 is a diagram of another embodiment of the utility model.

Fig. 8 is an implementation state diagram of the utility model applied to a traditional hand puller.

Fig. 9 is a known three-dimensional exploded view.

Fig. 10 is a state view of the known handle part removed so that the limiting piece can be moved.

Detailed ways

First of all, please observe from Figure 1, Figure 2 and Figure 3, which includes: a ratchet part 10 and a handle part 20, the ratchet part 10 and the handle part 20 are connected by a connecting rod 30 , when the handle part 20 is pulled, the ratchet 40 that can block the ratchet part 10 will rotate, so that the connecting rod 30 will rotate in one direction, and the rope wrapped around the connecting rod 30 can be relatively tightened, while the hand The pull part 20 also has a pressing function. When pressed, the pull part 20 can be pulled without turning the ratchet wheel 40, so that the pull part 20 can be controlled to untie the belt, or be separated from the ratchet part 10 and the connecting rod 30. The central part of the ratchet part 10 is provided with a limiting piece 50 pushed against the ratchet wheel 40 by the spring 11, and the limiting piece 50 is located in the track grooves 12 on both sides of the ratchet part 10, wherein:

A plurality of unidirectional ratchets 41 are evenly arranged on the peripheral surface of the ratchet 40, and the locking edges of the ratchets 41 are slightly sunken and each forms a groove 42, so that a barbed shape can be formed between the groove 42 and the tooth top. The buckle claws 43, to use these buckle claws 43 to buckle and fix with the limiting piece 50;

The spacer 50 is provided with a dodging space 51 relative to the ratchet 40, so that the front of the spacer 50 can actively form a buckle 52 due to the setting of the dodge space 51, and the buckle 52 is formed with the dodge space 51. The high and low drops are used to provide the buckle 43 of the ratchet 40 to snap in.

When it is used to bundle goods, the connecting rod 30 is combined with a rope, and the hand pull part 20 can be continuously pulled on the ratchet part 10, so that the connecting rod 30 and the ratchet 40 pivot, and at the same time drive the rope to wind up, and the ratchet 40 will be unidirectionally fixed by the limit piece 50, so the rope will not loosen. When the rope is completely wound up and fixed, and the handle part 20 can no longer be pulled, the pressing of the handle part 20 can be used to control the drive. The piece 21 breaks away from the ratchet 40, and spreads the two side cover plates 22, so that the handle part 20 can be disassembled (please observe it from Fig. 4 and Fig. 5 at the same time), and because the pawl 43 of the ratchet 40 is always The buckle is on the buckle 52 of the stopper 50, so that the stopper 50 cannot move backwards without being pulled, so when the handle part 20 is removed, the effect of the catch can be used, The limiting piece 50 will not be moved due to the curiosity of others, that is, the phenomenon that the rope is not fixed and loosened, relatively allowing the tightly bound goods to be delivered smoothly, and when the belt is to be untied, press the handle part 20. Let the hand-pull part 20 be pulled up without continuing to roll the rope. When it is pulled to the position close to the maximum stroke, release the hand-pull part 20, and then apply a backward thrust to drive the The piece 21 can move the ratchet 410 of the last half-tooth backward, and the ratchet 41 which is interlocked with the limiting piece 50 can be slightly lifted at the same time, so that the unwinding action can be successfully completed.

Again, the dodging space 51 on the limiting piece 50 can be cut groove (please observe from Fig. 1 to Fig. 5 at the same time), through hole (please observe from Fig. 6 simultaneously), or directly buckle block 52 bulges (please observe it as shown in Fig. 7) etc., and the fronts of the vertical plates 13 on both sides of the ratchet part 10 can protrude again on the maximum stroke position where the hand pull part 20 drives the ratchet wheel 40 to rotate There is a stopper 14 (please observe it from Fig. 6 and Fig. 7 at the same time), so as to utilize the stopper of the stopper 14, and can avoid the hand-pull part 20 when it is pulled too far, that is to say, there is a rope that is finally tied tightly. The belt will automatically loosen and so on.

In addition, the self-locking structure of the present utility model can not only be applied to separate handles, but it is also relatively suitable for installation on traditional handles (please also observe it from Figure 8), because the use of the self-locking structure The buckle can actually make the positioning effect of the limit piece 50 more remarkable, and relatively can form a guarantee that the ratchet 40 will not slip slightly due to excessive load.

According to the structure of the above-mentioned specific embodiment, the following benefits can be obtained: it utilizes the buckle claw 43 to buckle with the buckle block 52, so that the limit piece 50 cannot move backward in translation without being pulled, so when it is pulled by hand When the part 20 is unloaded, the effect of the buckle can be used, so that the stopper 50 will not be moved because of the curiosity of others, that is, the phenomenon that the rope is not fixed and loosened, and the tightly bound goods can be relatively released. Delivered smoothly.

To sum up, the utility model has indeed achieved a breakthrough in structural design, has improved creative content, and at the same time can achieve industrial utilization and progress, and the utility model has not been seen in any publications, and it is also novel , when it complies with the provisions of the relevant provisions of the Patent Law, the application for a new type patent is filed according to law.

Only the above is only a preferred embodiment of the utility model, and should not be used to limit the scope of the utility model implementation; that is, all equivalent changes and modifications made according to the scope of the utility model patent application should still be It belongs to the scope covered by the claims of the utility model.

Claims (5)

1, a kind of self-locking structure of hand controller, it includes: a spine move portion and pulls portion, between spine move portion and the portion of pulling and with pipe link as being connected, spine move portion central part is provided with and is subjected to the banking stop of spring pushing and pressing card to ratchet again, this banking stop also is arranged in the rail groove of spine move portion both sides, it is characterized in that:

Equalization is provided with a plurality of unidirectional ratchets on the circumferential surface of ratchet, the card of ratchet ends edge all slightly to be absorbed in and respectively to be formed with a groove, groove to gear tip clearance forms the button pawl of an overhead kick shape, to utilize these button pawls to interlock fixing with banking stop, banking stop is be equipped with the space of dodging with respect to the ratchet place, with the setting in the space of dodging, and initiatively is formed with a button piece in banking stop the place ahead, this button piece also is formed with high and low drop with the space of dodging, and provides the button dog clutch of ratchet to go into to utilize this drop.

2, the self-locking structure of hand controller according to claim 1, wherein, the space of dodging on the banking stop is that the mode with profile groove forms.

3, the self-locking structure of hand controller according to claim 1, wherein, the space of dodging on the banking stop is that the mode with perforation forms.

4, the self-locking structure of hand controller according to claim 1, wherein, the space of dodging on the banking stop is directly will detain piece protuberance and form.

5, the self-locking structure of hand controller according to claim 1, wherein, spine move portion both sides are protruding with a stopper in the maximum travel position that the portion of pulling drives the ratchet rotation.

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