TWI564097B - Extendable control structure for a tool rod body - Google Patents

Description

Telescopic control structure of tool body

The present invention relates to an improvement of a tool having a shaft, and more particularly to a person who can freely adjust the length of the shaft on the tool and can be positioned in multiple stages.

Hand tools are one of the indispensable tools in machinery and home. In order to be portable, the shorter the hand tool is, the more advantageous it is. Since the length of the hand tool is fixed, in the process of operating the hand tool, it is often limited by the use space, and the problem of insufficient length of the hand tool is caused, which is inconvenient to use and reduces work efficiency.

In order to improve the practicality and convenience of the hand tools, the hand tool manufacturer has developed a screwdriver that can adjust the length of the telescopic rod body, which comprises a body, a rod body and a control structure, and the body is axially ring-shaped. The control structure is disposed between the body and the rod body. The control structure is provided with a positioning bead at a fixed position, and the positioning bead is embedded in one of the ring grooves of the body. When the user wants to adjust the length of the body, an axial force is applied to the control structure, so that one of the ring grooves is not restricted by the positioning frame of the control structure, and the length of the body can be flexibly adjusted; After the completion, the control structure is stopped, and the control structure will return to the original position, and the positioning bead is again accommodated in one of the ring grooves to reach the limit. Fixed effect.

However, conventionally, the length of the telescopic rod body can be adjusted. When the length of the telescopic rod body is to be adjusted, an axial force must be continuously applied to the control structure. However, the user must simultaneously hold the screwdriver while continuously pushing. Or pulling the control structure, and at the same time adjusting the length of the body, is not ergonomic and not convenient for the user to operate.

In view of this, the inventors have conceived and further studied, and finally invented a telescopic control structure of a tool body.

The invention provides a telescopic control structure for a tool bar body, the main purpose of which is to improve the length of the telescopic hand tool body by a convenient and convenient manner by improving the telescopic control structure of the tool bar body.

In order to achieve the above objective, the present invention provides a telescopic control structure for a tool body, comprising: a body having a tubular structure, a through hole is formed to receive a ball, and a first ring groove and a first portion are formed on the outer periphery of the body. a second ring groove, and a first fixing groove is formed at the first ring groove; a working rod has a working end at one end and a receiving end in the body at the other end, and a peripheral edge of the working rod is formed in the axial direction a long groove, and a plurality of positioning portions are formed on the long groove, one side of the ball is received in the long groove; a rotating member is a hollow column structure, and has a hollow column structure on the inner side An adjusting portion, a returning portion and a retaining edge, the adjusting portion includes a shallow groove and a deep groove, the shallow groove and the deep groove are connected around the rotating member, and the shallow groove is connected with the deep groove Is a guiding surface, the rotating member is formed with a second fixing groove at the return portion, the rotating member is sleeved on the body, and the other side of the ball is received in the adjusting portion; a torsion spring The first ring groove is disposed in the first ring groove of the body, and the other end is received in the first fixing groove, and the other end is received in the second fixing groove; and a coupling member is received in the second ring groove of the body Abutting against the retaining edge of the rotating member; wherein the length of the shallow groove bottom to the bottom of the positioning portion, and the length of the deep groove bottom to the bottom of the long groove are not less than the ball The diameter.

The invention utilizes the telescopic control structure of the tool body provided, and the utility model can obtain the effect that the user controls the rotating member in a rotating manner, thereby changing the position of the ball to control the positioning of the working rod, when the working rod is not When positioning, the length of the working rod can be adjusted freely. The invention is different from the conventional one in that it is necessary to continuously apply an axial force to the control structure, which is convenient and convenient to use.

The present invention has been described in connection with the preferred embodiments of the present invention in accordance with the accompanying drawings.

〔this invention〕

20‧‧‧ body

21‧‧‧Perforation

22‧‧‧ balls

23‧‧‧First ring groove

24‧‧‧second ring groove

25‧‧‧First fixed slot

30‧‧‧Working rod

31‧‧‧Working end

32‧‧‧ long trough

321‧‧‧ Positioning Department

40‧‧‧Rotating parts

41‧‧‧Regulatory Department

411‧‧‧ shallow groove

412‧‧‧ deep trough

413‧‧‧ Guide surface

42‧‧‧Reply Department

43‧‧‧ 挡缘

44‧‧‧Second fixing slot

51‧‧‧Torque spring

52‧‧‧Connected parts

Fig. 1 is an external view of an embodiment of the present invention.

Figure 2 is a perspective exploded view of an embodiment of the present invention.

Fig. 3 is a perspective view showing the rotary member of the embodiment of the present invention.

Fig. 4 is a perspective view showing another perspective of the rotating member of the embodiment of the present invention.

Figure 5 is a partial perspective view of an embodiment of the present invention.

Figure 6 is a partial cross-sectional view showing an embodiment of the present invention.

Figure 7 is a cross-sectional view of an embodiment of the present invention.

Figure 8 is a diagram showing the state of use of Figure 7.

Figure 9 is a diagram showing the state of use of an embodiment of the present invention.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

In order to enable the reviewing committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following [detailed description of the drawings] as follows: preferred implementation of the telescopic control structure of the tool body of the present invention For example, as shown in FIG. 1 to FIG. 7 , the body 20 includes a working rod 30 , a rotating member 40 , a torsion spring 51 , and a coupling member 52 . The body 20 is a circular tubular structure. There is a through hole 21 for accommodating a ball 22, and a first ring groove 23 and a second ring groove 24 are formed on the outer periphery of the body 20. The first ring groove 23 and the second ring groove 24 are respectively formed on the body. Forming a first fixing groove 25 at the first ring groove 23, the first fixing groove 25 is an elongated groove formed along the axial direction of the body 20; the working rod 30 The outer diameter is equal to the inner diameter of the body 20. One end of the working rod 30 is a working end 31, and the working end 31 can be a screwdriver. The driving head, or a hexagonal hole for the user to replace the different screwdriver heads, the common end 31 is accommodated in the body 20 at the other end, and the outer circumference of the working rod 30 is formed along the axial direction. There is a long groove 32, and a plurality of positioning portions 321 are formed on the long groove 32, and one side of the ball 22 is received in the long groove 32. The rotating member 40 is a The hollow columnar structure has an adjusting portion 41, a returning portion 42 and a retaining edge 43 on the inner side. The adjusting portion 41 includes a shallow groove 411 and a deep groove 412. The shallow groove 411 and the deep groove 412 The guiding portion 413 is connected to the rotating member 40, and the shallow groove 411 is connected to the deep groove 412 as a guiding surface 413. In this embodiment, the guiding surface 413 is an inclined surface, and the guiding surface is The first surface of the rotating member 40 is formed along the axis of the rotating member 40. The rotating member 40 is sleeved on the body 20, and the other side of the ball 22 is received in the adjusting portion 41. The retaining edge 43 is formed in the adjusting portion. The torsion spring 51 is sleeved in the body 20 and is received in the first ring groove 23 of the body 20. One end of the body is received in the first fixing groove 25, and the other end is accommodated. The second fixing groove 44 is respectively fixed by the first fixing groove 25 and the second fixing groove 44; and the coupling member 52 is received in the second ring groove 24 of the body 20, and The retaining edge 43 of the rotating member 40 abuts. In this embodiment, the engaging member 52 is a C-shaped buckle; The distance from the bottom of the shallow groove 411 to the bottom of the positioning portion 321 and the distance from the bottom of the deep groove 412 to the bottom of the long groove 32 are not less than the diameter of the ball 22, as shown in the figure. The distance from the bottom of the shallow groove 411 to the bottom of the positioning portion 321 and the distance from the bottom of the deep groove 412 to the bottom of the long groove 32 are equal to the diameter of the ball 22.

The above description is the main components of the embodiment of the present invention and their configuration description. For the manner of use and the effect of the embodiment of the present invention, please refer to FIG. 5 to FIG. 7 in conjunction with FIG. 2, generally according to the present invention, in the initial state, as shown in the figure, the working rod 30 is configured. The rotating member 40 is disposed on the body 20, and the two ends of the rotating member 40 are respectively fixed to the body 20 through the coupling member 52 and the torsion spring 51. At this time, please refer to FIG. 7 , the ball 22 is located on the shallow groove 411 of the rotating member 40 and the positioning portion 321 of the working rod 30 , and the ball 22 cooperates with the locking portion of the positioning portion 321 , and the working rod 30 The system is positioned and cannot be flexibly adjusted to length.

When the user wants to adjust the length of the working rod 30, firstly, as shown in FIG. 8, the user rotates the rotating member 40, and the ball 22 is displaced from the shallow groove 411 to the depth via the guiding surface 413. The groove 412 moves the ball 22 from the positioning portion 321 to the elongated groove 32. At the same time, the torsion spring 51 accumulates the elastic potential energy. In this case, as shown in FIG. 9 and the second figure, the user can push The work bar 30 is pulled to adjust the length of the work bar 30. After the adjustment to the positioning, the user releases the rotating member 40, and the torsion spring 51 releases the elastic potential energy to rotate the rotating member 40 back to the initial state, and the ball 22 is from the deep groove 412. The guide groove 413 is moved to the shallow groove 411 and accommodated in one of the positioning portions 321 of the working rod 30, thereby completing the length adjustment of the working rod 30.

From the above, it is known that the present invention truly conforms to "industrial availability," "novelty," and "progressiveness", and submits an invention patent application in accordance with the law, praying for review and early granting of a patent, and it is truly sensible.

20‧‧‧ body

21‧‧‧Perforation

22‧‧‧ balls

23‧‧‧First ring groove

24‧‧‧second ring groove

25‧‧‧First fixed slot

30‧‧‧Working rod

32‧‧‧ long trough

321‧‧‧ Positioning Department

40‧‧‧Rotating parts

41‧‧‧Regulatory Department

411‧‧‧ shallow groove

412‧‧‧ deep trough

413‧‧‧ Guide surface

43‧‧‧ 挡缘

51‧‧‧Torque spring

52‧‧‧Connected parts

Claims (6)

A telescopic control structure for a tool body includes: a body having a tubular structure, a through hole for receiving a ball, and a first ring groove and a second ring groove formed on the outer periphery of the body A first fixing groove is formed in a ring groove; a working rod has a working end at one end and a receiving groove in the body at the other end, and a long groove is formed in the outer circumference of the working rod, and the length is long. a plurality of positioning portions are formed on the groove, and one side of the ball is received in the long groove; a rotating member is a hollow column structure having an adjusting portion and a return portion on the inner side surface a rim, the adjusting portion includes a shallow groove and a deep groove, the shallow groove and the deep groove are connected around the rotating member, and the shallow groove and the deep groove are connected as a guiding surface, The rotating member is formed with a second fixing groove at the return portion, the rotating member is sleeved on the body, and the other side of the ball is received in the adjusting portion; a torsion spring is accommodated in the body a ring groove, one end of which is received in the first fixing groove, and the other The second fixing groove is disposed in the second fixing groove; and a coupling member is received in the second ring groove of the body and abuts against the blocking edge of the rotating member; wherein the shallow groove bottom reaches the bottom of the positioning portion The length of the distance, the length of the deep groove bottom to the bottom of the long groove is not less than the diameter of the ball. The telescopic control structure of the tool body according to the first aspect of the invention, wherein the first ring groove and the second ring groove are respectively formed on two sides of the through hole of the body. The telescopic control structure of the tool body according to the first aspect of the invention, wherein the first fixing groove and the second fixing groove are elongated grooves formed along the axial direction of the body and the rotating member. The telescopic control structure of the tool body according to claim 1, wherein each of the positioning portions is formed equidistantly on the elongated groove. The telescopic control structure of the tool body according to claim 1, wherein the coupling member is a C-shaped buckle. The telescopic control structure of the tool body according to claim 1, wherein the length of the shallow groove bottom to the bottom of the positioning portion, the length of the deep groove bottom to the bottom of the long groove groove, And the diameter of the balls is exactly the same.