WO2022156656A1

WO2022156656A1 - Anti-loosening hook for tensioning device and automobile safety tensioning device having same

Info

Publication number: WO2022156656A1
Application number: PCT/CN2022/072467
Authority: WO
Inventors: 陈伟国; 陈燕琼; 邓伟; 吴泽民
Original assignee: 宁波旭力金属制品有限公司
Priority date: 2021-01-20
Filing date: 2022-01-18
Publication date: 2022-07-28
Also published as: CN112677871A; DE202022002881U1

Abstract

An anti-loosening hook for a tensioning device and an automobile safety tensioning device having same. The anti-loosening hook comprises a hook body and a hook (2) provided on the hook body, and a shock-absorbing elastic body (3) is provided between the hook body and the hook (2) or at a position on the hook body opposite to the hook (2). The tensioning device comprises a main unit (5); hooks are installed on the main unit (5); and the hook body of each hook is connected to the main unit (5) by means of a strap (4), or the hook body of each hook is directly connected to the main unit (5). In the anti-loosening hook for a tensioning device, the shock-absorbing elastic body (3) is provided between the hook body and the hook (2) or at a position on the hook body opposite to the hook (2) to achieve shock-absorbing, cushioning, and anti-loosening effects. By installing anti-loosening hooks on the main unit (5) of the automobile safety tensioning device, the impact force can be effectively absorbed when bumps and vibrations occur, thereby reducing the safety risk caused by breakage of the hooks or loosening of the strap (4).

Description

An anti-loosening hook for a tensioning device and an automobile safety tensioning device with the hook

technical field

The invention relates to a tensioning device for fixing and tightening goods on vehicles such as automobiles, trailers, planes, ships, etc., in particular to an anti-loosening hook for the tensioning device and an automobile safety hook with the hook Tighten the device.

Background technique

The car safety tensioning device is generally composed of the tensioning device host, long straps, short straps, etc. Among them, the main part usually adopts the principle of anti-reverse rotation ratchet mechanism. The handle directly drives the active pawl, the active pawl pushes the ratchet, and the ratchet directly drives the main shaft, thereby tightening the strap wrapped around the main shaft. The pawl prevents the ratchet wheel from being reversed, so that a certain tension can be maintained on the strap to bind the goods in place. The hook connects one end of the long and short straps and connects with the corresponding securing points of the car or other means of transport. There will always be certain vibrations or bumps during the driving of the vehicle, especially in some road sections with poor road conditions, and the hook of the ordinary tensioning device is directly connected to the corresponding securing point of the vehicle. The larger impact force generated by the bumpy vibration acts directly on the hook, and the impact may exceed the bearing capacity of the hook, and there is a risk of the hook breaking. In addition, repeated bumps and vibrations may also gradually reduce the tension on the straps or even loosen the straps from the main unit, which will cause the cargo to slip without sufficient binding tension, resulting in a large Security Risk. To sum up, it is necessary to further improve the existing automobile safety tensioning device.

SUMMARY OF THE INVENTION

The first technical problem to be solved by the present invention is to provide an anti-loosening hook for a tensioning device that can effectively absorb the impact force of a bump when it occurs in view of the above-mentioned current state of the art.

The second technical problem to be solved by the present invention is to provide a safety tensioning device for automobiles that can effectively absorb the impact force when bumps occur, and reduce the breakage of hooks and the loosening of straps.

The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: the anti-loosening hook for the tensioning device includes a hook body and a hook arranged on the hook body, and is characterized in that: the hook body and the hook are located between the hook body and the hook or A shock-absorbing elastic body is provided on the hook body at the position opposite to the hook.

As a preferred solution, the hook and the hook body are separate parts, and the hook is detachably connected to the hook body.

The hook and the shock-absorbing elastic body can have various installation structures. Preferably, the hook body is provided with a through hole for installing the hook, the hook passes through the through hole, and the inner end of the hook is located inside the hook body. , the shock-absorbing elastic body is arranged on the inner side of the hook body and installed on the inner end of the hook.

The hook body can adopt a split structure, preferably, the hook body includes a U-shaped connecting ring and a connecting rod, and the connecting rod is installed on the open side of the U-shaped connecting ring to form a closed connecting ring together with the U-shaped connecting ring, The through hole is opened on the side wall of the closed side of the U-shaped connecting ring, the inner end of the hook is provided with a head, the shock-absorbing elastic body is sleeved on the inner end of the hook, and one end of the shock-absorbing elastic body is connected to the inner end of the hook. The side walls of the closed side of the U-shaped connecting ring are abutted against, and the other end is abutted against the end head.

The connecting rod can have various structures, preferably, the connecting rod is a bolt, and the bolt passes through the opposite side walls of the opening side of the U-shaped connecting ring and is connected and fixed by a nut, or the connecting rod is a bolt passing through the U-shaped connecting ring. The opposite side wall of the open side of the U-shaped connecting ring and the pin shaft fixed on the U-shaped connecting ring.

The shock-absorbing elastic body may have various structures. Preferably, the shock-absorbing elastic body is an elastic sheet, a compression spring, or a soft elastic body. In addition, the elastic piece is preferably a butterfly spring, and a special-shaped spring piece can also be used.

The hook body can also adopt an integrated structure. Preferably, the hook body is a closed connecting ring with a closed circumference, the hook is provided on one side of the closed connecting ring, and the shock-absorbing elastic body is installed on the closed connecting ring. For example, the shock absorbing elastomer can be installed on the same side of the hook or on the opposite side of the hook.

As another preferred solution, the hook is integral with the hook body, and one side of the hook body extends outward and is bent to form the hook, and the shock-absorbing elastic body is provided on the other side of the hook body. side.

The technical solution adopted by the present invention to solve the above-mentioned second technical problem is as follows: the tensioning device with the hook installed includes a main engine, which is characterized in that the hook is installed on the main engine, and the hook is installed on the main engine. The hook body is connected to the host through a strap, or the hook body of the hook is directly connected to the host.

Further preferably, the hooks are provided on both sides of the host, and the hook bodies of the two hooks are connected to the host through corresponding straps, or the hook body of one of the hooks is connected to the host through straps. On the host, the hook body of the other hook is directly connected to the host.

The host can have various structures, preferably, the host includes a base, a handle, a main rotating shaft, a driving pawl, a stopping pawl and a ratchet, the main rotating shaft is installed on the base, and the handle and the ratchet are installed on the main body. The main rotating shaft is driven by the handle to rotate on the rotating shaft, the active pawl and the stop pawl are matched with the ratchet wheel, the active pawl is installed on the handle, the stop pawl is installed on the seat body, and the strap One end of the strap is installed on the main rotating shaft, and the other end of the strap is installed on the hook body.

Compared with the prior art, the advantage of the present invention is that: the anti-loosening hook used for the tensioning device can prevent the tension from being released by arranging a shock-absorbing elastic body between the hook body and the hook or on the hook body at a position opposite to the hook. To the effect of shock absorption, buffering and anti-looseness, the anti-loose hook is installed on the main engine of the car safety tensioning device. When bumps and vibrations occur, it can effectively absorb the impact force, thereby reducing the breakage of the hook or the looseness of the binding belt. security risks.

Description of drawings

1 is a perspective exploded schematic diagram of Embodiment 1 of the present invention;

2 is a schematic perspective view of Embodiment 1 of the present invention;

3 is a front view of Embodiment 1 of the present invention;

4 is a cross-sectional view of Embodiment 1 of the present invention;

FIG. 5 is a perspective view of the first embodiment of the present invention after being connected with the tensioning device and the strap;

FIG. 6 is a perspective view of another connection method with the tensioning device and the strap according to the first embodiment of the present invention;

Fig. 7 is the exploded schematic diagram of the connection with the tensioning device according to the first embodiment of the present invention;

Fig. 8 is the top view of the connection with the tensioning device according to the first embodiment of the present invention;

9 is a perspective view of Embodiment 2 of the present invention;

10 is an exploded schematic diagram of Embodiment 2 of the present invention;

11 is a three-dimensional schematic diagram of Embodiment 3 of the present invention;

FIG. 12 is a three-dimensional exploded schematic diagram of Embodiment 3 of the present invention;

13 is a schematic perspective view of Embodiment 4 of the present invention;

14 is a cross-sectional view of Embodiment 4 of the present invention;

15 is an exploded schematic diagram of Embodiment 4 of the present invention;

16 is a schematic perspective view of Embodiment 5 of the present invention;

17 is a cross-sectional view of Embodiment 5 of the present invention;

18 is an exploded schematic diagram of Embodiment 5 of the present invention;

FIG. 19 is a three-dimensional schematic diagram of Embodiment 6 of the present invention;

20 is a cross-sectional view of Embodiment 6 of the present invention;

21 is an exploded schematic diagram of Embodiment 6 of the present invention;

22 is an exploded schematic diagram of Embodiment 7 of the present invention;

FIG. 23 is an exploded schematic diagram of Embodiment 8 of the present invention.

Detailed ways

The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.

Example 1:

As shown in FIGS. 1 to 3 , the anti-loosening hook for the tensioning device of this embodiment includes a hook body and a hook 2 arranged on the hook body, wherein the hook 2 and the hook body are separate parts, and the hook 2 is detachably connected on the hook body. The hook body includes a U-shaped connecting ring 11 and a connecting rod. The connecting rod is installed on the open side of the U-shaped connecting ring 11 to form a closed connecting ring together with the U-shaped connecting ring 11 . The connecting rod of this embodiment adopts bolts 12 , which pass through the opposite side walls of the open side of the U-shaped connecting ring 11 and are connected and fixed by nuts 13 , so that the bolts 12 and the U-shaped connecting ring 11 together form a closed connecting ring. The side wall of the closed side of the U-shaped connecting ring 11 is provided with a through hole 111 for installing the hook 2. The inner end of the hook 2 is provided with an end 21. Passing through the through hole 111 , one end of the damping elastic body 3 abuts against the side wall of the closed side of the U-shaped connecting ring 11 , and the other end abuts against the end head 21 .

The shock-absorbing elastic body 3 in this embodiment may adopt a combination of compression springs or butterfly springs, preferably a butterfly spring, and the number of the butterfly springs is not limited.

The automobile safety tensioning device of this embodiment includes a main body 5 , hooks are provided on both sides of the main body 5 , and the hook body of at least one of the hooks is connected to the main body 5 through a strap 4 .

As shown in FIGS. 4 to 5 , the main engine 5 in this embodiment adopts a ratchet tensioner, and the main engine 5 specifically includes a seat body 51 , a handle 52 , a main rotating shaft 53 , an active pawl 54 , a stop pawl 55 and a ratchet wheel 56 , Among them, the main shaft 53 is installed on the base body 51, the handle 52 and the ratchet 56 are installed on the main shaft 53, the main shaft 53 and the ratchet 56 can rotate synchronously under the drive of the handle 52, the active pawl 54 and the stop pawl 55 and The ratchet 56 is matched, the active pawl 54 is installed on the handle 52 , and the stop pawl 55 is installed on the seat body 51 . Both hooks are mounted on the host 5 through the strap 4, one end of the strap 4 on the left is mounted on the main shaft 53, the other end is mounted on the bolt 12 of the hook body, and one end of the strap 4 on the right is connected to the seat. The other end is mounted on the fixing shaft 57 of the body 51 on the bolt 12 of the hook. During use, the pulling force generated by the host 5 is transmitted to the hook, and the shock-absorbing elastic body 3 is compressed after being stressed, which has the effect of buffering and shock-absorbing.

As shown in FIGS. 6 to 8 , the bolt 12 of the hook body of one of the hooks is directly connected to the base body 51 of the host 5 , one end of the strap 4 is installed on the main shaft 53 , and the other end of the strap 4 is installed on the other A hook on the bolt 12 of the hook body. During use, it can also play a cushioning and shock absorption effect.

Embodiment 2:

As shown in FIGS. 9 and 10 , the connecting rod of this embodiment adopts a pin shaft 14 , which passes through the opposite side walls of the open side of the U-shaped connecting ring 11 and is fixed on the U-shaped connecting ring 11 . The pin shaft 14 is connected to the U-shaped connecting ring 11 . The U-shaped connecting rings 11 together form a closed connecting ring. The rest of the structure of this embodiment is the same as that of the first embodiment, and will not be described here.

Embodiment three:

As shown in FIGS. 11 and 12 , the hook body of this embodiment is a closed connecting ring 15 with a closed periphery, a mounting hole 151 is opened on one side of the closed connecting ring 15, and the inner end of the hook 2 passes through the mounting hole 151 inwards, The shock-absorbing elastic body 3 is sleeved on the inner end of the hook 2 , and the inner end of the hook 2 is fixed to the shock-absorbing elastic body 3 by the fixing nut 16 . Of course, the fixing nut 16 can also be replaced by the form of an end head, for details, please refer to the first embodiment.

Embodiment 4:

As shown in FIGS. 13 to 15 , the hook body of this embodiment is a closed connecting ring 15 with a closed periphery, a mounting hole 151 is opened on one side of the closed connecting ring 15, and the inner end of the hook 2 is mounted on the mounting hole 151 and is connected to the mounting hole 151. The closed connecting ring 15 is connected and fixed. The shock-absorbing elastic body 3 is installed on the rod body on the other side of the closed connecting ring 15 , and the strap 4 is connected to the shock-absorbing elastic body 3 . The shock-absorbing elastic body 3 in this embodiment adopts a special-shaped spring sheet, rubber or a similar soft elastic body.

Embodiment 5:

As shown in FIGS. 16 to 18 , the hook body of this embodiment is a closed connecting ring 15 closed around it, the connecting hole 22 of the hook 2 penetrates one side of the closed connecting ring 15 , and the shock absorbing elastic body 3 is installed on the closed connecting ring On the other side of 15 , the strap 4 is connected to the shock-absorbing elastic body 3 .

Embodiment 6:

As shown in Fig. 19 to Fig. 21 , the hook 2 of this embodiment is integral with the hook body. The hook body is a connecting ring 17. One side of the connecting ring 17 is extended outward and bent to form the hook 2. The shock absorbing elastic body 3 is arranged on the other side of the connecting ring 17 , and the strap 4 is connected to the shock-absorbing elastic body 3 . Specifically, the hook 2 in this embodiment is a double row hook. Of course, the hooks are not limited to double-row hooks, and may be single-row hooks or multi-row hooks.

Embodiment 7:

As shown in FIG. 22 , the main engine 5 of this embodiment adopts the structure of a cam buckle, and the tightening principle of the cam buckle can be referred to the existing tightening device, which will not be described here.

Embodiment 8:

As shown in FIG. 23 , the main body of this embodiment adopts the structure of the eccentric buckle, and the tensioning principle of the eccentric buckle can refer to the existing tensioning device, and will not be described here.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, various modifications or improvements can be made to the present invention without departing from the principles of the present invention. Install the anti-loosening hook directly, such as installing the anti-loosening hook on one side of the host, installing the existing conventional hook on the other side of the host, and installing the anti-loosening hook on the host with other structures, all of which are regarded as the protection of the present invention. within the range.

Claims

An anti-loosening hook for a tensioning device, comprising a hook body and a hook (2) arranged on the hook body, characterized in that: between the hook body and the hook (2) or on the hook body and on the opposite side of the hook A shock-absorbing elastic body (3) is provided at the position of the .
The anti-loosening hook for a tensioning device according to claim 1, wherein the hook (2) and the hook body are separate parts, and the hook (2) is detachably connected to the hook body.
The anti-loosening hook for a tensioning device according to claim 2, wherein the hook body is provided with a through hole (111) for installing the hook, and the hook (2) passes through the through hole (111). ) and the inner end of the hook (2) is located inside the hook body, and the shock absorbing elastic body (3) is arranged inside the hook body and mounted on the inner end of the hook (2).
The anti-loosening hook for a tensioning device according to claim 3, wherein the hook body comprises a U-shaped connecting ring (11) and a connecting rod, and the connecting rod is installed in the opening of the U-shaped connecting ring (11). The through hole (111) is opened on the side wall of the closed side of the U-shaped connecting ring (11), and the inner end of the hook (2) is provided with an end The head (21), the shock-absorbing elastic body (3) is sleeved on the inner end of the hook (2), and one end of the shock-absorbing elastic body (3) is in contact with the side wall of the closed side of the U-shaped connecting ring (11), The other end is in contact with the end head (21).
The anti-loosening hook for a tensioning device according to claim 4, wherein the connecting rod is a bolt (12), and the bolt (12) passes through the opposite side wall of the opening side of the U-shaped connecting ring (11). and is connected and fixed by a nut (13), or the connecting rod is a pin (14) that passes through the opposite side wall of the open side of the U-shaped connecting ring (11) and is fixed on the U-shaped connecting ring (11). .
The anti-loosening hook for a tensioning device according to claim 3, characterized in that: the hook body is a closed connecting ring (15) closed around it, and the hook (2) is provided on the closed connecting ring (15). On one side, the damping elastic body (3) is mounted on the closed connecting ring (15).
The anti-loosening hook for a tensioning device according to claim 1, characterized in that: the hook (2) is integral with the hook body, and one side of the hook body extends outward and is bent to form the hook (2). 12), the shock-absorbing elastic body (3) is arranged on the other side of the hook body.
An automobile safety tensioning device equipped with the hook according to any one of claims 1 to 7, comprising a main engine (5), characterized in that: the hook is installed on the main engine (5), so that the The hook body of the hook is connected to the host (5) through a strap (4), or the hook body of the hook is directly connected to the host (5).
The automobile safety tensioning device according to claim 8, characterized in that the hooks are provided on both sides of the main body (5), and the hook bodies of the two hooks pass through corresponding straps (4). ) is connected to the host (5), or, the hook body of one of the hooks is connected to the host (5) through a strap (4), and the hook body of the other hook is directly connected to the host (5).
The safety tensioning device for automobiles according to claim 9, wherein the main engine (5) comprises a seat body (51), a handle (52), a main rotating shaft (53), an active pawl (54), a stopper The pawl (55) and the ratchet (56), the main shaft (53) is mounted on the seat body (51), the handle (52) and the ratchet (56) are mounted on the main shaft (53) and are connected by the handle (52) ) drives the main shaft (53) to rotate, the active pawl (54) and the stop pawl (55) cooperate with the ratchet (56), and the active pawl (54) is installed on the handle (52), so The stop pawl (55) is mounted on the seat body (51), one end of the strap (4) is mounted on the main shaft (53), and the other end of the strap (4) is mounted on the hook body superior.