CN200974214Y - Drive head structure of pneumatic wrench - Google Patents

Abstract

A driving head structure of a pneumatic wrench, the driving head structure is arranged at the front end of a pneumatic wrench body, the driving head further includes a ball head section extending downward from the top to the side and formed into the same arc, a rectangular section with a predetermined length at the other end, and a ring neck between the ball head section and the rectangular section, and the outer diameter formed by the top point of the arc of each face of the ball head section corresponds to the four-corner groove of the sleeve, so that the four-corner groove of the sleeve is vertically and tightly fitted to the circumference of the rectangular section along the ball head section and the ring neck, and the shape of the ball head section allows it to engage and drive the sleeve at a predetermined angle.

Description

Drive head structure of pneumatic wrench

technical field

The utility model relates to a pneumatic wrench, more specifically, refers to a driving head structure of a pneumatic wrench that can be combined with a sleeve at an angle or vertically.

Background technique

Press, please refer to shown in Fig. 1, known pneumatic wrench 1 is to set a driving head 2 at its body front end, and this driving head 2 has a predetermined height, and outer peripheral surface is shaped into a quadrangular surface, and each side width The sizes are all equal, so that they can be vertically inserted into the square grooves 4 of the joint sleeve 3 to drive the sleeve 3 .

However, when the known pneumatic wrench 1 intends to lock or disassemble the locking assembly, the sleeve 3 must be vertically inserted into the drive head 2 to drive the sleeve to lock or disassemble the locking assembly. Therefore, when the surrounding space of the locking component cannot allow the pneumatic wrench to be placed vertically, the pneumatic wrench cannot be used, and manpower is required to lock and disassemble, resulting in waste of construction efficiency and man-hours.

Utility model content

The purpose of the utility model is to provide a driving head structure of a pneumatic wrench, which does not require manpower to lock and disassemble, which can improve construction efficiency and save manpower and man-hours.

The utility model provides a driving head structure of a pneumatic wrench, which is provided with a driving head structure at the front end of a pneumatic wrench body, so that the driving head can be inserted into the square groove of the sleeve. It is characterized in that the driving The header further contains:

A rectangular section, one end of which is connected to the body of the pneumatic wrench, has a predetermined length, and its outer periphery corresponds to the square groove of the sleeve and is surrounded to form a square;

A ball head segment, one end of which has a ring neck connected to the rectangular segment, and the other end is formed around its outer circumference to form four faces, and the width of each face is equal, and each face is from the side of the ring neck end The side extends upwards to the top, and each side is formed into the same radian, and the outer diameter formed by the apex of each side of the radian is just large enough to be inserted into the square groove of the sleeve. In addition, the ring neck The part is formed by gradually retracting the ball head section and the rectangular section, so that the driving head can also form an inclination with the square groove due to the shape of the ball head section.

Wherein the slope formed by the ball head section and the square groove is 25 degrees to 30 degrees.

The beneficial effects of the utility model are:

The driving head structure of the pneumatic wrench provided by the utility model, wherein, the ball head section and the ring neck of the driving head have appropriate radians and depths, so that the pneumatic wrench can not only be vertically inserted into the sleeve and driven, Moreover, the ball head section can make the pneumatic wrench engage with the square groove of the sleeve after inclining at an angle, and then drive the sleeve to lock or disassemble the locking assembly, which does not require manpower to lock and disassemble, It can improve construction efficiency and save manpower and man-hours.

Description of drawings

Below by the detailed description of icon, component symbol and accompanying drawing, further elaborate as follows with regard to the preferred embodiment of the present utility model, wherein:

Fig. 1 is a structural schematic diagram of a driving head of a known pneumatic wrench.

Fig. 2 is a three-dimensional schematic diagram of the drive head structure of the present invention.

FIG. 3 is a schematic joint cross-sectional view of a preferred embodiment of the present invention.

FIG. 4 is a schematic joint cross-sectional view of another embodiment of the present invention.

Detailed ways

First, please refer to Fig. 2 to Fig. 4, the utility model is a preferred embodiment of the driving head structure of the pneumatic wrench, the driving head structure of the pneumatic wrench is provided with a driving head at the front end of the body 1 structure, so that the drive head 10 can be placed in the square groove 21 of the sleeve 20, and then drive the sleeve 20, the drive head 10 further includes:

A rectangular section 30, one end of which is connected to the body 1 of the pneumatic wrench, has a predetermined length, and its outer periphery corresponds to the square groove 21 of the sleeve 20 and is surrounded to form a square;

A ball head section 40, one end of which is a ring neck 41 connected to the rectangular section 30, and the other end is formed on its outer circumference to form four faces, and the width of each face is equal, and on each face from The sides of the ring neck 41 end extend upwards to the top, and each side is formed into the same radian, and the outer diameter formed by the apex of each side of the radian is just enough to correspond to the four corners of the sleeve 20 Groove 21, in addition, the ring neck 41 is formed by the gradual retraction of the ball segment 40 and the rectangular segment 30, the drive head 10 can form an inclination with the square groove 21 by the shape of the ball segment 40 , to drive the sleeve 20, the inclination formed by the ball head section and the square groove in the preferred embodiment of the present invention is about 25-30 degrees.

In order to further understand the structural features of the utility model, the use of technical means and the expected effects, the usage of the utility model will be described below. It is believed that the utility model can be understood more deeply and specifically, as follows:

Please refer to Figures 3 to 4, the normal use of the pneumatic wrench is to put the sleeve 20 directly into the drive head 10, that is, directly place the square groove 21 of the sleeve 20 along the ball head section 40, ring neck 41 and the rectangular section 30, and directly inserted, and the square groove 21 is completely covered to the peripheral surface of the rectangular section 30, so that the drive head 10 and the sleeve 20 are completely sealed, and then the sleeve 20 is driven to lock Fix or disassemble the predetermined locking component; when the locking component is located at the position where the pneumatic wrench body 1 cannot move vertically, the sleeve 20 is first inserted into the locking component to be locked or disassembled, and then By connecting the ball head section 40 and the square groove 21 at a predetermined slope angle, the ball head section 40 and one end of the ring neck 41 are respectively tightly fitted in the square groove 21, and then drive The pneumatic wrench is used to lock or disassemble the locking assembly, which is convenient for users to use.

From the above description, the advantages and achievable effects of the present utility model can be summarized as follows:

The driving head structure of the pneumatic wrench of the utility model, wherein the driving head is combined with the square groove of the sleeve by the slope and depth formed by the ball head section and the ring neck, so that the pneumatic wrench can be tilted An angle to drive the sleeve.

The driving head structure of the pneumatic wrench of the present utility model, wherein the rectangular section has a predetermined length, and the four corner grooves of the sleeve can be completely sealed and inserted into the peripheral surface of the rectangular section to be driven. Therefore, when When the driving head of the pneumatic wrench is used in conjunction with the sleeve, the driving head will not come out of the four-corner groove of the sleeve due to the excessive impact force of the pneumatic wrench, causing personal injury and damage to the sleeve and the driving head.

In summary, the utility model has its excellent progressive practicability among similar products. At the same time, the technical data about this type of structure have been searched at home and abroad, and no similar structure has been found in the literature. , the utility model has already met the requirements of a new patent, so a patent application is filed according to law.

However, the above is only a preferred feasible embodiment of the utility model, so all equivalent structural changes made by using the specification of the utility model and the scope of the patent application should be included in the patent scope of the utility model .

Claims (2)

1, a kind of driving head structure of pneumatic impact spanner, it is that body front end in a pneumatic impact spanner is provided with a driving head structure, and this driving head just can be inserted in four chamfered grooves of sleeve, it is characterized in that this driving head also further includes:

One rectangular section, the one end is connected in the body of this pneumatic impact spanner, and has a predetermined length, and its periphery is established four chamfered grooves that should sleeve and ring and formed one or four edged surfaces;

One bulb section, the one end has a ring neck to connect this rectangular section, it is held in addition in its peripheral ring and establishes four faces of formation, and the size of its each face width degree is equal, and the side in each face from the ring neck end extends upwardly to the top, and make each face all be configured as identical radian measure, again, the formed external diameter in summit of its each face radian, its size can just corresponding be inserted four chamfered grooves of this sleeve, in addition, this ring neck is that this bulb section and this rectangular section contract in gradually and form, and makes this driving head also can form a gradient with this four chamfered groove by the shape of bulb section.

According to the driving head structure of claim 1 a described pneumatic impact spanner, it is characterized in that 2, wherein the gradient of this bulb section and this four chamfered groove formation is that 25 degree are to 30 degree.

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