CN201784814U - Winch - Google Patents

Abstract

The utility model provides a winch, which belongs to the technical field of machinery. The utility model solves the problems that the existing winch pawls and ratchet wheels are firmly engaged and the binding precision is not high. The winch includes a U-shaped bracket, the opening of the bracket is provided with a rotatable rotating shaft, the two ends of the rotating shaft pass through the bracket respectively, the part of the rotating shaft passing through the bracket is provided with a rotating structure, and the other end of the rotating shaft passes through the part of the bracket A ratchet wheel that can rotate together with the rotating shaft is sheathed on and fixedly connected to, and a ratchet pawl is hinged on one side of the bracket having the ratchet wheel, and the ratchet pawl has a plurality of ratchet teeth that can mesh with the ratchet wheel. In the winch, the pawl and the ratchet wheel are engaged firmly, and the binding precision is high.

Description

winch

technical field

The utility model belongs to the technical field of machinery and relates to a winch.

Background technique

In the process of transporting goods by car, the goods usually need to be bundled to prevent the goods from falling off or colliding with each other when the car is driving, resulting in loss or damage. Although the method of directly binding the goods with ropes is very common, it is time-consuming and laborious, and it is difficult to tie the goods tightly.

A winch is an advanced lashing tool. It is convenient and safe to use a winch to bind goods, and is very popular among drivers. Existing winch is usually made up of support, belt shaft, the ratchet wheel that is located at one end of belt shaft, and the ratchet that can cooperate with ratchet wheel and binding band. The tape shaft is connected to the bracket and the tape shaft is rotatable, and the binding tape is wound on the tape shaft. A crowbar hole is provided at the outer end of the belt shaft protruding out from the bracket. When it is necessary to bind the goods, insert the crowbar into the hole of the crowbar, and turn the crowbar to drive the belt shaft to rotate. After the belt shaft rotates, the binding belt can be gathered, so that the goods can be tightly bound.

But when using the winch, it is fixed on the car body, limited by the position, when the crowbar is pulled to make the belt shaft rotate a certain angle during operation, the crowbar must be pulled out and inserted into another crowbar hole , so as to continue to rotate the belt shaft, the operation is laborious and time-consuming, and the binding efficiency is not high. Moreover, the ratchet on the winch has only one ratchet, and when the force between the ratchet and the ratchet is large, the ratchet on the ratchet is easily damaged, and the function of the ratchet is lost after damage, so that the winch The purpose of binding cannot be achieved.

Contents of the invention

The purpose of the utility model is to solve the problems mentioned above in the prior art, and propose a winch with a firm engagement between the pawl and the ratchet wheel.

The purpose of this utility model can be achieved through the following technical solutions:

The winch includes a U-shaped bracket, the opening of the bracket is provided with a rotatable shaft, the two ends of the shaft pass through the bracket respectively, and the part where one end of the shaft passes through the bracket is provided with a rotating structure. The part where the other end of the rotating shaft passes through the bracket is sheathed and fixedly connected with a ratchet wheel that can rotate together with the rotating shaft. A ratchet is hinged on the side of the bracket with the ratchet. It is characterized in that the ratchet has several functions A ratchet that engages with a ratchet.

In this winch, the rotating shaft can only rotate in one direction under the effect of ratchet and ratchet. One end of the binding belt is fixedly connected to the middle position of the winch rotating shaft, and the binding belt can be gathered up by rotating the rotating shaft. During the binding process, the rotating structure at one end of the rotating shaft drives the rotating shaft to rotate, and the ratchet and the pawl are separated; the binding belt is wound on the rotating shaft, and when the goods are bound firmly, the ratchet and the pawl engage to achieve the purpose of binding. In the winch, the pawl has several ratchets, so that the engagement between the pawl and the ratchet wheel is very firm; when the number of ratchets on the pawl is increased, the number of ratchets of the ratchet wheel is also increased. In this way, when the rotational speed of the rotating shaft is constant, the number of engagements between the pawl and the ratchet wheel increases, thereby improving the binding accuracy of the winch.

In the above-mentioned winch, there are 2 to 5 ratchets.

In the above-mentioned winch, there are 3 ratchets.

According to the specific situation, the number of ratchets can be set to 3. If the number of ratchets is too large, although the ratchet and the pawl mesh firmly, it is not easy to separate them; the number of ratchets is small, although it is beneficial to separation, but the engagement between the two is not firm.

In the above-mentioned winch, the pawl is hinged on the bracket through a pin, and a torsion spring is sheathed on the pin, and the pawl moves closer to the ratchet under the action of the torsion spring.

During the rotation of the ratchet, the ratchet on the ratchet pushes the pawl, making the pawl rotate around the pin away from the ratchet; when the strap is tightened, the pawl rotates toward the ratchet under the action of the torsion spring, and finally the pawl Engage with ratchet.

In the above-mentioned winch, the rotating structure is an insertion hole provided on the part where the rotating shaft passes through the bracket. The purpose of such arrangement is that when the rotating shaft needs to be rotated, a crowbar is inserted into the jack, and the rotating shaft can be rotated by turning the crowbar.

In the above-mentioned winch, the rotating structure is a handle provided on the part where the rotating shaft passes through the bracket. The purpose of such arrangement is that when the rotating shaft needs to be rotated, the rotating shaft can be rotated by directly turning the handle.

In the above-mentioned winch, the rotating shaft is provided with two symmetrical baffles at the middle position of the support. The function of the baffle is to keep the binding band between the two baffles all the time, avoiding the direct contact between the binding band and the bracket, and preventing the abrasion between the binding band and the bracket.

Compared with the prior art, the winch has the following advantages:

1. There are 3 ratchets on the pawl of this winch, the meshing between the pawl and the ratchet wheel is more firm, and the bundled goods are firmly bound and not easy to be damaged.

2. The handle provided on the part where the rotating shaft passes out of the bracket makes the operation more convenient during the rotation of the rotating shaft.

Description of drawings

Fig. 1 is the structure diagram of this winch.

Fig. 2 is another structural schematic diagram of the winch.

Fig. 3 is a left side view of the winch.

In the figure, 1. bracket; 2. rotating shaft; 21. socket; 3. ratchet; 4. pawl; 41. ratchet; 5. pin; 6. handle; 7. baffle.

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

As shown in FIGS. 1 and 2 , the winch includes a U-shaped bracket 1 , and a rotating shaft 2 is pierced at the opening of the bracket 1 , and the rotating shaft 2 can rotate relative to the bracket 1 . One end of the rotating shaft 2 passes through the bracket 1, and a ratchet 3 that can rotate with the rotating shaft 2 is sheathed and fixedly connected to the part that passes through. Under action, the rotating shaft 2 can only rotate in one direction.

There are 2 to 5 ratchet teeth 41 on the pawl 4 that can engage with the ratchet wheel 3 , as shown in FIG. 3 , there are 3 ratchet teeth in this embodiment. The number of ratchets 41 is too many, although the engagement between the ratchet 3 and the pawl 4 is firm, it is not easy to separate them; the number of ratchets 41 is small, although it is beneficial to the separation between the ratchet 3 and the pawl 4, the meshing between the two Not solid.

The ratchet 4 is hinged on the support 1 through a pin 5 , and the pin 5 is sheathed with a torsion spring that can make the ratchet 4 move closer to the ratchet 3 . During the rotation of the ratchet 3, the ratchet 41 on the ratchet 3 pushes the pawl 4, so that the pawl 4 rotates around the pin 5 away from the ratchet 3; The ratchet 3 rotates in one direction, and finally the ratchet 4 is engaged with the ratchet 3 . During the rotation process, the rotating shaft 2 can only rotate in one direction.

The other end of the rotating shaft 2 also passes through the support 1, and a rotating structure is provided on the part passing through. Specifically, as shown in FIG. 2 , the rotating structure is an insertion hole 21 provided on the rotating shaft 2 , and the outer end of the rotating shaft 2 located at the insertion hole 21 is also provided with a handle 6 . Under normal circumstances, the binding belt can be wound on the rotating shaft 2 only by turning the handle 6; Insert the crowbar, and pull the crowbar to realize the rotation of shaft 2.

As shown in FIG. 1 , 2 or 3 , the rotating shaft 2 is located in the middle of the bracket 1 and is provided with two symmetrical baffles 7 . The baffles 7 are circular and concentric with the rotating shaft 2 . The binding belt is located between the two baffle plates 7, avoiding the direct contact between the binding belt and the bracket 1, and preventing the abrasion between the binding belt and the bracket 1.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Although terms such as bracket 1, rotating shaft 2, socket 21, ratchet 3, pawl 4, ratchet 41, pin 5, handle 6, baffle 7 are frequently used in this paper, the possibility of using other terms is not excluded . These terms are only used to describe and explain the essence of the utility model more conveniently; interpreting them as any kind of additional limitation is contrary to the spirit of the utility model.

Claims (7)

1. A winch, comprising a U-shaped support (1), the opening of the support (1) is provided with a rotatable rotating shaft (2), and the two ends of the rotating shaft (2) pass through the support (1) respectively ), the part where one end of the rotating shaft (2) passes through the support (1) is provided with a rotating structure, and the part where the other end of the rotating shaft (2) passes through the support (1) is sleeved and fixedly connected with a device that can follow the rotating shaft (2 ) and a ratchet (3) that rotates together, and a ratchet (4) is hinged on the side of the bracket (1) that has the ratchet (3). It is characterized in that the described ratchet (4) has several (3) Engaged ratchet (41). 2. The winch according to claim 1, characterized in that there are 2 to 5 ratchets (41). 3. The winch according to claim 2, characterized in that there are three ratchets (41). 4. The winch according to claim 1, 2 or 3, characterized in that the pawl (4) is hinged on the bracket (1) through a pin (5), and the pin (5) is sheathed There is a torsion spring, and the ratchet (4) draws closer to the ratchet (3) under the action of the torsion spring. 5. The winch according to claim 1, characterized in that, the rotating structure is an insertion hole (21) provided on the part where the rotating shaft (2) passes through the bracket (1). 6 . The winch according to claim 1 or 5 , characterized in that, the rotating structure is a handle ( 6 ) provided on the part where the rotating shaft ( 2 ) passes through the bracket ( 1 ). 7. The winch according to claim 1 or 2 or 3 or 5, characterized in that the rotating shaft (2) is provided with two symmetrical baffles (7) at the middle position of the bracket (1).

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