CN202592286U - Special wrench device - Google Patents

Abstract

The utility model discloses a wrench device with different faces. The wrench device with different surfaces includes a driving handle, a screw sleeve and a transmission device arranged between the driving handle and the screw sleeve. The transmission device includes: a first bevel gear that is in transmission connection with the driving handle; and a second bevel gear that is in transmission connection with the screw sleeve and meshes with the first bevel gear; wherein, the first bevel gear The axis direction of the second bevel gear is perpendicular to the axis direction of the second bevel gear, so that the rotation axis of the driving handle is perpendicular to the rotation axis of the screw sleeve. Therefore, when the installation space in the axial direction of the screw sleeve is small, the wrench operation can be performed more conveniently, so as to conveniently tighten or disassemble the screw member.

Description

A different-face wrench device

technical field

The utility model relates to the field of special tools for mechanical installation, in particular to a wrench device with different faces.

Background technique

At present, when installing and dismounting screw parts, a wrench device is usually used, and the driving rotation direction (or rotation driving axis) of the wrench device is the same as or parallel to the rotation direction (or axis direction of the screw part) of the screw part. of. In this way, in the case where the installation space is limited, it may be difficult to place the wrench device. For example, especially when there are obstacles or blocking structures in the axial direction of the threaded part, the blocking objects or blocking structures will hinder the placement and/or operation of the wrench device.

It would therefore be desirable to have a new type of wrench arrangement to overcome or at least alleviate this problem.

Utility model content

The purpose of this utility model is to provide a new type of different-face wrench device in order to overcome or at least alleviate the above-mentioned defects in the prior art.

For this reason, the utility model provides a kind of wrench device with different surfaces, and the wrench device with different surfaces includes a drive handle, a screw sleeve and a transmission device arranged between the drive handle and the screw sleeve, and the transmission device includes : a first bevel gear connected to the drive handle; and a second bevel gear connected to the screw sleeve and meshed with the first bevel gear; wherein, the axial direction of the first bevel gear is perpendicular to The direction of the axis of the second bevel gear is such that the rotation axis of the driving handle is perpendicular to the rotation axis of the screw sleeve.

Therefore, when the installation space in the axial direction of the screw sleeve is small, the wrench operation can be performed more conveniently, so as to conveniently tighten or disassemble the screw member. This kind of wrench device has the function of disassembling and installing nuts on different surfaces. It has the characteristics of simple principle and convenient use, which saves time when disassembling and installing nuts on inconvenient working surfaces. Compared with the current wrench on the market, this device provides a wrench that can work on the different side of the nut rotation, thereby reducing the processing difficulty of some specific mechanisms - leaving room for the wrench to rotate.

Preferably, the transmission device further includes a first sprocket arranged coaxially with the screw sleeve, and a second sprocket arranged coaxially with the second bevel gear, and the first and second sprocket Connected by a first chain drive. Thus, the transmission connection between the screw sleeve and the second bevel gear is realized in a simple and reliable manner.

Preferably, the transmission device further includes a first gear coaxially arranged with the screw sleeve, and a second gear coaxially arranged with the second bevel gear, and the first gear and the second gear are in transmission connection . Thus, the transmission connection between the screw sleeve and the second bevel gear is realized in a simple and reliable manner. Further preferably, at least one intermediate gear for transmission is arranged between the first gear and the second gear.

Preferably, the transmission device further includes a first pulley coaxially arranged with the screw sleeve, and a second pulley coaxially arranged with the second bevel gear, and the first pulley and the second pulley pass through the first pulley A belt drive connection. Thus, the transmission connection between the screw sleeve and the second bevel gear is realized in a simple and reliable manner.

Preferably, the transmission device further includes a third sprocket coaxially arranged with the output shaft of the transmission handle, and a fourth sprocket coaxially arranged with the first bevel gear, and the third and the first The four sprockets are connected by a second chain transmission. Thus, the transmission connection between the transmission handle and the first bevel gear is realized in a simple and reliable manner.

Preferably, the transmission device further includes a third gear coaxially arranged with the output shaft of the transmission handle, and a fourth gear coaxially arranged with the first bevel gear, and the third gear and the fourth gear Gear drive connection. Thus, the transmission connection between the transmission handle and the first bevel gear is realized in a simple and reliable manner. Further preferably, at least one intermediate gear for transmission is arranged between the third gear and the fourth gear.

Preferably, the transmission device further includes a third pulley coaxially arranged with the output shaft of the transmission handle, and a fourth pulley coaxially arranged with the first bevel gear, and the third pulley and the fourth pulley The pulley is connected by a second belt drive. Thus, the transmission connection between the transmission handle and the first bevel gear is realized in a simple and reliable manner.

As used herein, the meaning of "coaxially arranged" or "coaxially mounted" means structurally coaxial and rotationally integral. For example, "the third sprocket coaxially arranged with the output shaft of the driving handle" means that the rotation axis of the output shaft of the driving handle coincides with the rotation axis of the third sprocket, and the output shaft of the driving handle coincides with the rotation axis of the third sprocket. Rotate forward or reverse synchronously.

Description of drawings

Fig. 1 is a schematic diagram of a wrench device with different surfaces according to an embodiment of the present invention.

In the picture:

1 Screw sleeve 2 Sprocket 3 Rack 4 Chain

5 sprockets 6 bevel gears 7 bevel gears 8 sprockets

9 chain 10 sprocket 11 drive handle

Detailed ways

According to an embodiment of the utility model, the different-face wrench device includes a driving handle, a screw sleeve, and a transmission device arranged between the driving handle and the screw sleeve, and the transmission device includes: The first bevel gear connected by transmission; and the second bevel gear that is connected by transmission with the screw sleeve and meshed with the first bevel gear; wherein, the axial direction of the first bevel gear is perpendicular to the second bevel gear The direction of the axis, so that the rotation axis of the driving handle is perpendicular to the rotation axis of the screw sleeve.

Therefore, when the installation space in the axial direction of the screw sleeve is small, the wrench operation can be performed more conveniently to tighten or disassemble the screw parts conveniently.

In a preferred embodiment, the transmission device further includes a first sprocket arranged coaxially with the screw sleeve, and a second sprocket arranged coaxially with the second bevel gear, and the first and second The two sprockets are connected through the first chain transmission. Thus, the transmission connection between the screw sleeve and the second bevel gear is realized in a simple and reliable manner.

In a preferred embodiment, the transmission device further includes a first gear coaxially arranged with the screw sleeve, and a second gear coaxially arranged with the second bevel gear, and the first gear and the second gear Gear drive connection. Thus, the transmission connection between the screw sleeve and the second bevel gear is realized in a simple and reliable manner. Further preferably, at least one intermediate gear for transmission is arranged between the first gear and the second gear.

In a preferred embodiment, the transmission device further includes a first pulley coaxially arranged with the screw sleeve, and a second pulley coaxially arranged with the second bevel gear, and the first pulley and the second pulley are The pulleys are connected by a first belt drive. Thus, the transmission connection between the screw sleeve and the second bevel gear is realized in a simple and reliable manner.

In a preferred embodiment, the transmission device further includes a third sprocket coaxially arranged with the output shaft of the transmission handle, and a fourth sprocket coaxially arranged with the first bevel gear, and the first The third and fourth sprockets are connected by a second chain drive. Thus, the transmission connection between the transmission handle and the first bevel gear is realized in a simple and reliable manner.

In a preferred embodiment, the transmission device further includes a third gear coaxially arranged with the output shaft of the transmission handle, and a fourth gear coaxially arranged with the first bevel gear, and the third gear It is connected with the fourth gear transmission. Thus, the transmission connection between the transmission handle and the first bevel gear is realized in a simple and reliable manner. Further preferably, at least one intermediate gear for transmission is arranged between the third gear and the fourth gear.

In a preferred embodiment, the transmission device further includes a third pulley arranged coaxially with the output shaft of the transmission handle, and a fourth pulley arranged coaxially with the first bevel gear, and the third pulley It is connected with the fourth belt pulley through the second belt drive. Thus, the transmission connection between the transmission handle and the first bevel gear is realized in a simple and reliable manner.

An embodiment of the utility model will be briefly described below in conjunction with FIG. 1 . The different-face wrench device of this embodiment includes a driving handle 11 , a screw sleeve 1 and a transmission device arranged between the driving handle 11 and the screw sleeve. The transmission device includes: a bevel gear 7 that is in transmission connection with the driving handle 11 ; The axis direction of the bevel gear 6 is perpendicular to the axis direction of the bevel gear 7 , so that the rotation axis of the output shaft of the driving handle is perpendicular to the rotation axis of the screw sleeve 1 .

The transmission device also includes a sprocket 2 coaxially arranged with the screw sleeve 1 , and a sprocket 5 coaxially arranged with the bevel gear 6 , and the sprocket 2 and the sprocket 5 are connected by a chain 4 through transmission.

The transmission device also includes a sprocket 10 coaxially arranged with the output shaft of the transmission handle, and a sprocket 8 coaxially arranged with the bevel gear 7, and the sprocket 8 and the sprocket 10 are connected through a chain 9 .

Above-mentioned structure is all installed on the frame 3.

Referring to FIG. 1 , when the driving handle 11 rotates, the sprocket 10 is driven to rotate, and the sprocket 10 drives the chain 9 to run, thereby driving the sprocket 8 to rotate. Bevel gear 7 rotates synchronously with sprocket 8, and then drives bevel gear 6 to rotate, and bevel gear 6 drives sprocket 5 to rotate again, and sprocket 5 drives chain 4 to run, thereby drives sprocket 2 to rotate, and finally drives the screw sleeve to rotate.

This kind of wrench has the function of disassembling and assembling nuts on different surfaces. It has the characteristics of simple principle and convenient use, which saves time when disassembling and assembling nuts on inconvenient working surfaces. Compared with the current wrench in the market, this device provides a wrench that can work on the opposite side of the nut rotation, thereby reducing the processing difficulty of some specific mechanisms - leaving room for the wrench to rotate.

The above is only a preferred embodiment of the utility model, and is not intended to limit the scope of protection of the utility model; the scope of protection of the utility model is defined by the claims in the claims, and all equivalents made according to the utility model Changes and modifications are all within the protection scope of the utility model patent.

Claims (9)

1. A wrench device with different faces, comprising a drive handle, a screw sleeve and a transmission device arranged between the drive handle and the screw sleeve, wherein the transmission device comprises: a first bevel gear in transmission connection with the drive handle; and a second bevel gear that is drive-connected to the screw sleeve and meshed with the first bevel gear; Wherein, the axis direction of the first bevel gear is perpendicular to the axis direction of the second bevel gear, so that the rotation axis of the driving handle is perpendicular to the rotation axis of the screw sleeve. 2. The different-face wrench device according to claim 1, wherein the transmission device further comprises a first sprocket coaxially arranged with the screw sleeve, and a coaxially arranged sprocket coaxially with the second bevel gear. a second sprocket, and the first and second sprockets are connected through a first chain transmission. 3. The different-face wrench device according to claim 1, wherein the transmission device further comprises a first gear coaxially arranged with the screw sleeve, and a first gear coaxially arranged with the second bevel gear Two gears, and the first gear and the second gear are in drive connection. 4. The wrench device according to claim 3, characterized in that at least one intermediate gear for transmission is arranged between the first gear and the second gear. 5. The different-face wrench device according to claim 1, wherein the transmission device further comprises a first pulley coaxially arranged with the screw sleeve, and a first belt pulley coaxially arranged with the second bevel gear. Two pulleys, and the first pulley and the second pulley are connected through the first belt drive. 6. The different-face wrench device according to any one of claims 1-5, wherein the transmission device further comprises a third sprocket arranged coaxially with the output shaft of the transmission handle, and a third sprocket coaxial with the transmission handle. The first bevel gear is coaxially arranged with the fourth sprocket, and the third and fourth sprockets are connected through the second chain transmission. 7. The different-face wrench device according to any one of claims 1-5, wherein the transmission device further comprises a third gear coaxially arranged with the output shaft of the transmission handle, and a third gear coaxial with the output shaft of the transmission handle. The first bevel gear is coaxially arranged with the fourth gear, and the third gear and the fourth gear are connected in transmission. 8. The different-face wrench device according to claim 7, characterized in that at least one intermediate gear for transmission is arranged between the third gear and the fourth gear. 9. The different-face wrench device according to any one of claims 1-5, wherein the transmission device further comprises a third pulley coaxially arranged with the output shaft of the transmission handle, and a third pulley coaxial with the output shaft of the transmission handle. The first bevel gear is coaxially arranged with the fourth pulley, and the third pulley and the fourth pulley are connected through the second belt transmission.

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