TWM479186U - Socket suitable for narrow space - Google Patents

Description

Sleeve for narrow spaces

This creation relates to the field of operation of tools, and in particular to a sleeve suitable for use in confined spaces.

As shown in FIG. 1, the conventional sleeve 10 has an input section 12 at one end, and the input section 12 is a square pocket which is trapped in the corresponding end surface of the sleeve 10, through a hole 14 formed in the sleeve 10 and having a small diameter. Let the input section 12 go straight to the other end of the sleeve 10. Thus, the sleeve 10 is sleeved with the input section 12 on a drive portion of any manual, pneumatic or electric tool (not shown).

In Figures 2 and 3, the sleeve 10 is formed with an output section 16 at its other end. The output section 16 is a hexagonal pocket that sinks into the corresponding end face of the sleeve 10, and the through hole 14 and the input section 12 are kept open. Therefore, the sleeve 10 is sleeved with the output section 16 in the shape of any post or the head of the driver (not shown), so that the aforementioned manual, pneumatic or electric tool drives the post or the screwdriver head to operate synchronously.

Since the depth L of the input section 12 plus the depth h of the output section 16 and the distance S from the bottom of the input section 12 to the bottom of the output section 16 are equal to the height H of the sleeve 10, these parts have a certain ratio to each other.

For example, if the height H of the sleeve 10 is 25.9 mm and the width (also known as the diameter) W of the sleeve 10 is 18.4 mm, the ratio of the height H to the width W is about 13:9. The depth L of the input section 12 is 11.6 mm, and the depth h of the output section 16 is 9.7 mm, and the depth ratio of the two is about 4:3. Alternatively, the ratio of the width W of the sleeve 10 to the depth of the output section 16 is about 2:1. Moreover, the output section 16 is a hexagonal hole, and the diagonal distance D is about 15.1 mm, so the ratio of the height H to the diagonal distance of the sleeve 10 is about 5:3.

Regardless of the ratio, it is one of the factors that keeps the height of the traditional sleeve 10 high. In this way, some machines or equipment are placed in narrow spaces or passages, or the space used for maintenance of the machinery is too narrow, hindering the tool from passing along with the sleeve, so that the maintenance personnel You will have sufficient repair equipment and you will not be able to carry out repairs.

Therefore, how to make the sleeve suitable for a narrow space has become an urgent problem to be solved in this creation.

In view of this, the creator explored the problems of the prior art in depth, and after years of experience in research and development and manufacturing of related industries, actively sought solutions, and finally succeeded in developing a sleeve suitable for narrow spaces to improve the use. The problem of creation.

The purpose of this creation is to use the change of the internal structure of the sleeve to reduce the overall height, and to fit other tools into the narrow space that the traditional sleeve cannot pass, which is convenient for the maintenance operation.

Due to the above objectives, one end of the sleeve of the creation forms an input section, and the other end forms an output section, and the input section and the output section are non-circular pockets that are trapped in the corresponding end faces of the sleeve, in the input section and the output section. There is a recessed portion, which is a ring groove formed on the inner wall surface of the sleeve, and may be adjacent to the output section except for abutting the input section, so that the sleeve meets the scale range of any of the following specifications: a. The inner diameter of the recess is larger or smaller Enter the diagonal distance of the segment, the difference between the two is ±1.5mm; b. The inner diameter of the concave portion is larger or smaller than the diagonal distance of the output segment, and the difference between the two is ±1.5mm.

In this way, the overall height of the sleeve is smaller than that of the conventional sleeve, and even with the same tool, it can enter a narrow space that the conventional sleeve cannot pass, and the maintenance work can be performed naturally.

Hereinafter, the purpose, structure and characteristics of the related embodiments will be described in detail based on the drawings, and it is believed that the techniques, means and functions adopted by the present invention can be obtained from an in-depth and specific understanding.

10(20)‧‧‧ sleeve

12(22)‧‧‧ Input section

14(28)‧‧‧ hole

16(26)‧‧‧ Output section

21‧‧‧ Root

23‧‧‧ top

24‧‧‧ ball nest

25‧‧‧ recess (ring groove)

H‧‧‧ Height

h, L, S‧‧ depth

S1, S2, D‧‧‧ distance

W‧‧‧Width

Figure 1 is a top view of a conventional sleeve.

Fig. 2 is a plan view taken along line A-A of Fig. 1.

Figure 3 is a bottom view of a conventional sleeve.

Figure 4 is a plan view of the first embodiment of the present invention.

Fig. 5 is a plan view taken along line B-B of Fig. 4.

Figure 6 is a bottom view of the creation sleeve.

Figure 7 is a cross-sectional view showing a second embodiment of the present creative sleeve.

Please refer to FIGS. 4-6 to illustrate the structure of the sleeve 20 of the present embodiment, which is respectively divided into non-circular slots at the two ends, and the quadrilateral groove is defined as the input section 22, and the hexagonal slot is regarded as the output section 26, and the output is Segment 26 is kept open to input section 22 by aperture 28 having a smaller aperture. Thus, the height H of the sleeve 20 is equal to the depth L of the input section 22 and the depth h of the output section 26, plus the sum of the distances S of the two.

In particular, the inner wall of the sleeve 20 defines a recess 25 that relatively increases the depth L of the input section 22. In the present embodiment, the recess 25 is an annular groove between the input section 22 and the output section 26 that sinks into the wall of the input section 22 adjacent to the output section 26. In the figure, the inner diameter of the annular groove 25 is greater than the diagonal distance of the input section 22 or the output section 26 such that the distance of the input section 22 from the open end to the bottom of the annular groove 25 becomes the depth L of the input section 22.

Of course, in other embodiments, the inner diameter of the annular groove 25 may be smaller than the diagonal distance of the input section 22 or the output section 26, as long as the inner diameter of the annular groove 25 is different from the input section 22, or the inner diameter of the annular groove 25. The difference from the output section 26 is ±1.5 mm, both within the scope of this creation.

The input section 22 defines a ball socket 24 at the center of each side. The center of the ball socket 24 is substantially equal to the distance S1 and S2 of the opening end of the input section 22 and the bottom of the ring groove 25. Therefore, the sum of the two is equal to the depth L of the input section 22. .

Therefore, the input section 22 can be sleeved on the driving part (not shown) of the standard specification and conform to the shape, and the ball-and-socket 24 can be combined with the convex part of the driving part to form a latching action, and can be separated and combined to facilitate the implementation. The sleeve 20 of the example is suitable for use with conventional manual, pneumatic or electric tools.

The depth L of the input segment 22 is greater than the depth h of the output segment 26, and the depth ratio between the two ranges is between 1.5:1 and 2.5:1. For example, the input section 22 has a depth L of 11 mm and the output section 26 has a depth h of 6 mm. The depth ratio of the two is about 2:1, which directly affects the height H of the entire sleeve 20.

Simply put, the height H of the sleeve 20 is 19 mm, and the width of the sleeve 20 (or The diameter W is 18 mm, so that the ratio of the height H to the width W is about 1:1. Further, the output section 26 is a hexagonal hole, and the diagonal distance D is about 14.5 mm, so that the height H of the sleeve 20 is about 9:7 compared with the diagonal distance, which is closer to a ratio range of 1:1 than the prior art.

Further, the hole 28 has a substantially trapezoidal cross-section in the wall surface, and is defined as a root portion 21 adjacent to the inner wall of the sleeve 20, and the thickness of the root portion 21 corresponds to the distance S. The hole 28 is viewed as a top 23 towards the axis and has a thickness less than the top 23. In other words, the thickness of the root portion 21 is substantially equal to the depth S of the aperture 28, which also has a proportional range with the depth h of the output section 26, typically between 1:2.5 and 1:6.5. Assuming that the depth S of the hole 28 is 2 mm, the ratio of the output section 26 which is 6 mm in the same depth as the depth h is about 1:3.

As a result, the depth of the output section 26 or the depth S of the aperture 28 is shallower than that of the conventional sleeve, except that the depth L of the input section 22 does not vary much. Therefore, the width W width of the sleeve 20 and the depth h of the output section 26 are approximately 3:1, which is a reasonable value ranging from 2.5:1 to 3.5:1.

Other embodiments can be derived from the above description. For example, in Fig. 7, the disclosed sleeve 20 differs from the previous embodiment in that there is no trapezoidal wall and the input section 22 leads directly to the output section 26. Therefore, the height H of the sleeve 20 is equal to the sum of the depth L of the input section 22 and the depth h of the output section 26, which is smaller than that of the above embodiment.

Wherein, the annular groove 25 eliminates the interference of the hexagonal wall of the output section 26 facing the quadrilateral input section 22, so that the input section 22 can still be placed outside the drive section of the standard specification (not shown), together with partial manual, pneumatic or The power tool enters a narrower space for the locking or dismounting operations required for maintenance work.

It is not difficult to understand from the above description that the overall height H of the sleeve 20 of the present embodiment is much shorter than that of the conventional sleeve, and even with the same tool, it is possible to enter a narrow space through which the conventional sleeve cannot pass, and smoothly perform maintenance work.

The above embodiments are merely illustrative of the present invention and are not intended to limit the creation. Various changes, modifications, and applications derived from the above-described embodiments of the skilled artisan are within the scope of the present invention.

20‧‧‧ sleeve

21‧‧‧ Root

22‧‧‧ Input section

23‧‧‧ top

24‧‧‧ ball nest

25‧‧‧ recess (ring groove)

26‧‧‧Output segment

28‧‧‧ holes

H‧‧‧ Height

h, L‧‧‧ Depth

S, S1, S2‧‧‧ distance

Claims (6)

A sleeve suitable for a narrow space, the sleeve forming an input section at one end and an output section formed at the other end, the input section and the output section being non-circular pockets that are trapped in corresponding end faces of the sleeve; wherein, in the input section and There is a recess between the output sections which is formed on the wall of the interior of the sleeve and abuts the input section. A sleeve suitable for use in a narrow space as described in claim 1 of the patent application, wherein the recess is a ring groove adjacent to the output section. A sleeve suitable for use in a narrow space as described in claim 1 wherein the inner diameter of the recess is greater than or less than the diagonal distance of the input section. A sleeve suitable for use in a narrow space as described in claim 3, wherein the difference between the inner diameter of the recess and the diagonal distance of the input section is ±1.5 mm. A sleeve suitable for use in a narrow space as described in claim 1 wherein the inner diameter of the recess is greater or smaller than the diagonal distance of the output section. A sleeve suitable for use in a narrow space as described in claim 5, wherein the difference between the inner diameter of the recess and the diagonal of the output section is ±1.5 mm.