TWM501916U - Improved positioning structure of screw head - Google Patents

Description

Improvement of the positioning structure of the screwdriver head

This creation is about the improvement of the positioning structure of the screwdriver head, especially one that has the advantages of simple components and easy assembly.

According to the conventional post 10 structure, as shown in FIGS. 1 to 4, the inner hole is fixed to the magnetic member 18 of the through hole 19 before the sliding sleeve 13, and the inner surface of the sliding sleeve 13 is connected to the post 10 The travel position is provided with a front positioning chute 14 and a rear positioning chute 15, the rear end of the post 10 is provided with a driving section 11, and the front end thereof is provided with a tool head assembly hole 101, and the other connecting rod 10 is provided with a groove. The elastic member 16 is set as a C-shaped buckle. After the post 10 is assembled to the sliding sleeve 13, when the sliding sleeve 13 is slid to the front and rear positioning chutes 14, 15, the elastic member 16 of the C-shaped buckle is The limit can be reached to limit the range of movement of the sleeve 13. The other pole 10 is provided with a recess 121 having a steel ball 17, and the sliding sleeve 13 is provided with a ring groove 103 for retracting the steel ball 17, so that when the sliding sleeve 13 is pushed, the elastic member 16 of the C-shaped buckle is positioned in the front positioning chute. At 1400, the steel ball 17 can be aligned with the annular groove 103, so that the steel ball 17 can be retracted, and the screwdriver head 12 can be withdrawn and replaced. Referring to FIG. 2, when the sliding sleeve 13 is pushed forward until the elastic member 16 of the C-shaped buckle is positioned in the rear positioning chute 15, the screwdriver head 12 can be inserted into the groove 2 of the screw 1 and the magnetic member 18 is used. The screw 1 is firmly adsorbed to facilitate the screw lock operation; the above structure has the following disadvantages:

1. The sliding sleeve 13 needs to lengthen its length in order to be able to be positioned forward and backward, and the inner circumferential surface has to process the annular groove 103 and the front and rear positioning chutes 14, 15 and has the elastic member 16 and the steel ball 17, and the manufacturing cost is relatively Improve, and reduce the willingness of consumers to adopt.

2. When the elastic member 16 of the sliding sleeve 13 is located at the rear positioning chute 15, the screwdriver head 12 of the sliding sleeve 13 protrudes from the screwdriver head 12, and the protruding portion thereof has a fixed length when the depth of the groove 4 of the large screw 3 is deep ( As shown in Fig. 3, although the large screw 3 can be attracted by the magnetic member 18, the screwdriver head 12 does not completely fit the groove 4 of the large screw 3; or the groove 6 of the small screw 5 is too shallow (e.g. 4 Figure)), make the screws 5 The magnetic element 18 is not completely attached and the screw 5 is skewed, which is inconvenient to use.

3. The sliding sleeve 13 is an annular sleeve body, so it cannot be replaced at will, and can only be adapted to the original size of the connecting rod 10.

In view of this, how to make the positioning structure of the screwdriver head reduce the cost, manufacture is simple, and it is more convenient to use, and it is necessary to improve. For this reason, the creator painstakingly studied and used the accumulated professional knowledge, technology, and experience to continuously improve and develop, thus creating the creation.

The main purpose of this creation is to solve the above problems, and to provide an improved positioning structure of the screwdriver head. The main technology and purpose are as follows: the positioning sleeve can be hooked and restrained by the limit ring of the hook head and the limit position can be used in the sliding section Sliding and adjusting the position of the card with the screw; and the hook portion is provided with a groove to be elastically deformed, so as to achieve the substantial effect of being applicable to different posts and reducing components and cost saving.

[study]

1‧‧‧ screws

2, 4, 6‧‧‧ grooves

3‧‧‧ Large screws

5‧‧‧Small screws

10‧‧‧Post

101‧‧‧Tool head set hole

102‧‧‧ Groove

103‧‧‧Circle

11‧‧‧Drive segment

12‧‧‧ screwdriver head

121‧‧‧dump

13‧‧‧Sleeve

14‧‧‧Pre-positioning chute

15‧‧‧ Rear positioning chute

16‧‧‧Flexible parts

17‧‧‧ steel balls

18‧‧‧Magnetic components

19‧‧‧through holes

[this creation]

20‧‧‧Post

21‧‧‧Driver

22‧‧‧ screwdriver head

23‧‧‧ Limit ring

303‧‧‧Sliding trough

31‧‧‧Hook

311‧‧‧Outer bevel

312‧‧‧Inner bevel

24‧‧‧slide section

30‧‧‧ Positioning sleeve

301‧‧‧ slotting

302‧‧‧ edge

32‧‧‧ convex

33‧‧‧Magnetic components

34‧‧‧through hole

Figure 1 is a cross-sectional view of a conventional combination

Figure 2 is a cross-sectional view of a combination of conventional adsorption screws

Figure 3 is a schematic view of a conventionally-adsorbed large screw that does not completely fit the groove

Figure 4 is a schematic view of a conventionally-adsorbed small screw

Figure 5 is a three-dimensional exploded view of the creation

Figure 6 is a combined perspective view of the creation

Figure 7 is a schematic diagram of the action of the elastic expansion of the hook

Figure 8 is a schematic diagram of the application of the large screw

Figure 9, is a schematic diagram of the adsorption screw

In order to make the reviewer have a better understanding of the creation, a preferred embodiment is shown in conjunction with the drawings. Details are as follows: Please refer to Figures 5 to 7, mainly: the drive end is provided at one end of the post 20 The other end of the 21 is provided with a screwdriver head 22, and a front end of the screwdriver head 22 is provided with a positioning sleeve 30, wherein the screwdriver The head 22 is provided with a limiting ring 23 and forms a sliding section 24 with the driving end 21 . The positioning sleeve 30 is a hollow sleeve body, and one end of the inner circumference is provided with a limiting ring 23 and can be hooked on the sliding section. The hook portion 31 of the upper slide is provided with at least two slits 301, and a claw-shaped hook portion 31 having an elastic deformable shape is formed. The outer portion of the hook portion 31 is provided with an outer inclined surface 311, and the inner side is provided with an inner inclined surface 312. The inner side of the other end of the positioning sleeve 30 is provided with a magnetic element 33 having a through hole 34, and the inner wall surface of the positioning sleeve 30 is provided with at least three convex portions 32 of the spacer spacer ring, and the side of the convex portion 32 and the hook portion The sliding groove 303 is formed on the other side, and the magnetic element 33 is abutted and restrained on the other side. The screwdriver head 22 passes through the positioning sleeve 30 and passes through the through hole 34, and the hook portion 31 is in any of the sliding segments 24. The position of the screwdriver head 22 is exposed outside the positioning sleeve 30. With the above structure, the positioning sleeve 30 can be slidably adjusted to position and can absorb screws of different sizes without falling off, and can control the depth of the screw locking. Reduce the complexity of components, ease of assembly, and cost reduction.

The composition of this creation, the details are as follows: Please refer to Figures 5 to 7, this The creation positioning sleeve 30 is made of a plastic material, and the composition is formed by inserting the integrally formed hook portion 31 into the screwdriver head 22. When the limit ring 23 of the larger circular diameter is to be passed, the outer surface of the hook portion 31 is 311. The outer edge of the ring 23 is pressed against the positioning sleeve 30 to elastically expand the hook portion 31 to pass through the limiting ring 23 (as shown in FIG. 7), and the hook portion 31 after passing through the limiting ring 23 The elastic recovery is performed, so that the hook portion 31 and the limiting ring 23 abut each other and are hooked together, so that the positioning sleeve 30 can be limited to the screwdriver head 22 and can be slidably adjusted between the sliding segments 24, and the limiting ring is 23 is limited by the sliding slot 303, so that the positioning sleeve 30 is more stable and does not shake when sliding; otherwise, when the positioning sleeve 30 is to be removed and replaced, the inner inclined surface 312 of the hook portion 31 is outside the limiting ring 23 The edge of the positioning sleeve 30 elastically expands the hook portion 31 to pass the limiting ring 23, so that the positioning sleeve 30 can be detached from the screwdriver head 22; the process is easy, the structure is simple, and the The post 20 can be replaced with different positioning sleeves 30 and the positioning sleeve 30 can be adapted to the effect of different posts 20.

Please refer to Figures 5, 8, and 9. When the magnetic component 33 is attracted to the screw, the connection is made. The driving end 21 of the rod 20 is driven by the power tool to rotate the screwdriver head 22 simultaneously. When the screw is pressed against the workpiece, the screwdriver head 22 is inserted into the groove of the screw to be rotated and locked into the workpiece. The positioning sleeve 30 The edge 302 is gradually approaching the surface of the workpiece. When the edge 302 is close to the surface of the workpiece, the user can find that the lock has been locked to an appropriate depth to stop the locking operation, and there is no problem that the screw locking depth is insufficient or excessive. Please refer to Figure 8. The screws are available in different sizes and their grooves are also different in depth. When the magnetic element 33 absorbs the large screw 3, the groove 4 has a deep depth, and the positioning sleeve 30 slides backward to make the screwdriver head 22 grow out and partially overlap the groove 4; please refer to FIG. When the magnetic component 33 attracts the small screw 5, the groove 6 has a shallow depth, and the positioning sleeve 30 slides forward, so that the positioning sleeve 30 can completely absorb the small screw 5, thereby preventing the protruding positioning sleeve 30 from protruding. The screwdriver head 22 has a fixed length, which prevents the magnetic component 33 from absorbing the screw 5; by the above, the positioning sleeve 30 can control the locking depth and the stable fixing position.

It is worth mentioning that, by virtue of the characteristics of the plastic elastic material, the hook portion 31 of the positioning sleeve 30 can be locked and disengaged from the post 20, so the positioning sleeve 30 can be replaced, reused, and applied to different lengths (for example: The 25 mm, 50 mm, 75 mm) post 20 is also suitable for different styles of the screwdriver head 22 having the same diameter.

In summary, the structure of this creation does have excellent practicality and enhanced efficiency. It is in line with the provisions of the Patent Law, and it is submitted in accordance with the law.

20‧‧‧Post

21‧‧‧Driver

22‧‧‧ screwdriver head

23‧‧‧ Limit ring

24‧‧‧slide section

30‧‧‧ Positioning sleeve

301‧‧‧ slotting

302‧‧‧ edge

303‧‧‧Sliding trough

31‧‧‧Hook

311‧‧‧Outer bevel

312‧‧‧Inner bevel

32‧‧‧ convex

33‧‧‧Magnetic components

34‧‧‧through hole

Claims (5)

The positioning structure of the screwdriver head is improved, which is provided with a driving end at one end of the pole, and a screwdriver head at the other end, and a positioning sleeve is arranged at the front end of the screwdriver head; the utility model is characterized in that: the screwdriver head is provided with a limiting ring and the driving end Forming a sliding section, the positioning sleeve is a hollow sleeve body, and one end of the inner circumference is provided with a hook portion which is hooked with the limiting ring and can slide on the sliding section, and the hook portion is provided with at least two slit grooves; The other end of the positioning sleeve is provided with a magnetic component having a through hole, and the inner wall surface of the sleeve is provided with a convex portion, a sliding groove is formed between the convex portion and the hook portion, and the other side provides the magnetic component to abut and limit And the screwdriver head passes through the set of the positioning sleeve and passes through the through hole, and the hook portion is in any of the sliding section positions, and the screwdriver head is exposed outside the positioning sleeve. The positioning structure of the screwdriver head according to claim 1 is improved, wherein the outer side of the hook portion is provided with an outer inclined surface. The positioning structure of the screwdriver head according to the second aspect of the patent application is improved, wherein the inner side of the hook portion is provided with an inner inclined surface. The positioning structure of the screwdriver head according to the first aspect of the patent application is improved, wherein the positioning sleeve is made of a plastic material. The positioning structure of the screwdriver head according to claim 1, wherein the convex portion is provided with at least three bumps.