TWI554367B - Screwdriver head connecting rod with quick dismantled reversal structure - Google Patents

Description

Screwdriver head with quick release structure

The invention relates to a screwdriver head joint with a quick-reverse rotation structure; in particular, a sleeve structure with a detachable type is arranged in the torque release device, and the quick assembly and disassembly of the sleeve body is used to complete the lock of the torque release device. Screw and remove the screw.

A torque release device which is generally known in the prior art, as described in the inventor's prior art, Taiwan Invention Disclosure No. 200906565, "Tool Torque Release and Clutch Structure", the torque release device disclosed in Figures 1 to 3 is attached to the post body 1. An inner sleeve 16 is disposed on the outer sleeve, and a spring 151 is disposed between the rod body and the inner sleeve 16 to allow the inner sleeve 16 to telescopically slide on the outer periphery of the post body 1 and utilize the inner collar The movement effect of the movement on the steel ball 130 is such that the screwdriver head 17 located in the post body 1 is separated from the post body 1 and the reversing engagement flange is disposed on the post body 1. 12, the inner collar 16 is provided with a notch, so that the user can pass the notch of the inner collar 16 through the engaging flange 12 of the post body 1 when reversing the screw, and then rotate the inner collar 16 to make the engaging flange 12 The inner collar 16 is caught, so that the screwdriver head 17 can directly reverse the take-out screw without being idling by the separation effect produced by the steel ball 130. And the torque release device disclosed in the sixth to the twentyth embodiment also sleeves an outer ring 4 around the outer side of the post body 2, and the joint ring is A spring 212 is disposed between the body and the outer ring 4, so that the outer ring 4 is telescopically slidable on the outer periphery of the post body 2, and the release effect of the steel ball 240 is moved by the outer ring 4 to be located on the post body 2. The inner screwdriver head 3 can be separated and combined with the post body 2, and the retracting engagement flange 22 is disposed on the post body 2, and the outer ring 4 is provided with a notch 410 for the user to reverse the screw. The notch 410 of the outer ring 4 is passed through the engaging flange 22 of the post body 2, and then the outer ring 4 is rotated to cause the engaging flange 22 to catch the outer ring 4, so that the screwdriver head 3 can directly reverse the removal of the screw without It will continue to idling by the separation effect produced by the steel ball 240.

Or, as in Taiwan's new type M374936 "Power Transmission Screw-in and Exit-out Automatic Stopper", it also sets an upper and lower casing 1, 2 on the periphery of the main shaft 3, and on the main shaft 3 and A spring 4 is disposed between the lower casings 1 and 2, so that the upper and lower casings 1, 2 are telescopically slid on the periphery of the main shaft 3, and the upper and lower casings 1, 2 are moved to the first steel ball 34a. The resulting release effect enables the tool head 6 located in the main shaft 3 to be separated and combined with the main shaft 3, and the main shaft 3 is provided with a reversing boss 32, and the upper casing 1 is provided with a chute 12 for use. When the screw is reversed, the chute 12 of the upper casing 1 is passed through the boss 32 of the main shaft 3, and then the upper and lower casings 1, 2 are rotated to cause the stud 32 to catch the upper and lower casings 1, 2, The tool head 6 can be directly reversed to take out the screw without being idling by the separation effect produced by the first steel ball 34a.

However, the above three types of torque release devices commonly used in the market are only in the position or manner in which the springs are arranged, and the principles and structures used are similar, and the design of the reverse screw is to provide a flange on the shaft. Or the studs, together with the design of the notch or the chute of the outer ring or the outer casing, so that the outer ring or the outer casing can be retracted, so that the protruding screwdriver can directly retract the screw.

The disadvantages of these conventional torque release devices are:

First, the engaging flange or the stud provided on the shaft will continuously collide with the outer ring or the outer casing during normal use, so that the engaging flange or the stud is at risk of being broken, and if If the engaging flange or the stud is broken, the torque release device loses the function of the reversing screw and cannot be used any more.

Secondly, the vibration generated by the torque release device causes a rotation offset of the outer ring or the outer casing, and the engaging flange or the post on the shaft often corresponds to the outer ring or the outer casing during use. The gap or the chute of the body causes the outer ring or the outer casing to be caught at the position of the reverse screw, which causes inconvenience in use.

Thirdly, the conventional torque release device is used to reduce the vibration generated by the outer ring or the outer casing during use, so that a thicker spring is used to improve the shock resistance of the outer ring or the outer casing. However, the thick spring will not only Increasing the volume, weight and cost of the torque release device, the biggest problem is that the increase in spring strength affects the force required by the user to pull the outer ring or the outer casing, and it is difficult to fit the flange or the stud. Corresponding to the gap or the chute of the outer casing ring or the outer casing, the conventional torque release device is very inconvenient and practical for the user to operate the reversing screw.

Fourth, when the conventional torque release device reverses the screw, since the exposed portion of the screwdriver head is short and is blocked by the line of sight of the outer ring or the outer casing, the screwdriver bit is less likely to be aligned with the screw, which affects the operation of the reverse screw. .

To this end, the inventors have accumulated years of experience in the development and manufacture of related screw tools, and have studied the shortcomings and problems of the previously disclosed torque release devices, and invented the present case.

The purpose of the invention is to delete the snap flange structure of the post of the conventional torque release device and the notch structure of the outer ring, and to install a detachable sleeve on the outside of each type of ball torque release device. The detachable sleeve body enables the torque release device to quickly and conveniently complete the operation of the reversing screw, and solves the problem that the engaging flange of the conventional torque release device is impacted and broken by the outer ring, and the reverse screw operation is inconvenient. problem.

The screwdriver head of the present invention has at least a post, a screwdriver head, a sliding ring and a sleeve body, wherein the connecting rod is provided with a joint portion, and a seat body is provided at the other end of the joint portion, the seat body a groove is recessed in the end portion, and a plurality of perforations are formed in the circumference of the groove to respectively receive a ball therein; the starter head is disposed in the groove of the post; the sliding ring sleeve is sleeved on the sleeve a spring is disposed between the sliding ring and the connecting rod, so that the sliding ring is axially slidably opposite to the connecting rod, and the inner side of the sliding ring is disposed at a position corresponding to the piercing of the connecting rod. a first ring circumference and a second circumference, the second circumference is disposed below the first circumference, and the inner diameter of the second circumference is larger than the inner diameter of the first circumference; the sleeve system is sleeved in the foregoing The outer circumference of the sliding ring, the length of the sleeve is matched with the assembly length of the connecting rod and the screwdriver head and the locking depth of the screw. The sliding ring and the sleeve body are provided with engaging elements, so that the sliding ring is placed in the sleeve body. The snap-fit element is used to position the sleeve with the slip ring.

The utility model of the present invention has a quick-reverse rotation structure, wherein the bottom of the groove is provided with an abutting element, and the tail end of the starter head is abutted in a point support manner, thereby reducing the idling of the post and the screwdriver head. The friction between the two is provided; and the groove is provided with a positioning member at the inner circumference to position the driver and prevent the driver from sliding out of the groove.

In the present invention, the upper end of the seat body is provided with an annular groove for arranging a buckle ring, and a middle position of the seat body is provided with a first limiting element; The sliding ring is provided with a second limiting element above the first circumference, so that the second limiting element And the first limiting member of the seat body is in abutting contact with each other, and the sliding ring is obtained by the second limiting member of the sliding ring and the spring disposed between the second limiting member and the buckle The buckle is slid between the buckle and the first limiting member.

The invention relates to a screwdriver head with a quick-reverse rotation structure, wherein the aforementioned engaging component is an elastic ring body, a magnet or a fastener, and the outer periphery of the sleeve body is provided with a non-slip grip for the user. Disassemble the sleeve.

The screwdriver head of the present invention has a quick-reverse rotation structure, wherein the lower end of the sleeve body is provided with an ejector ring, and a magnet is arranged around the apex ring to directly attract the screw head by the magnet. The screws are securely mounted on the casing.

1‧‧‧Pole

10‧‧‧Combination Department

11‧‧‧

12‧‧‧ Groove

13‧‧‧Perforation

130‧‧‧ balls

14‧‧‧Abutment component

15‧‧‧ Positioning components

16‧‧‧ring groove

160‧‧‧ buckle

17‧‧ ‧ retaining ring

18‧‧‧First limit component

2‧‧‧ screwdriver head

3‧‧‧Sliding ring

30‧‧‧ Spring

31‧‧‧ first ring

32‧‧‧second circumference

33‧‧‧second limit element

4‧‧‧ Socket

40‧‧‧stops

41‧‧‧Snap components

42‧‧‧ grip

43‧‧‧Round ring

44‧‧‧ magnet

5‧‧‧ screws

6‧‧‧structures

Figure 1 is an exploded view of the present invention.

Figure 2 is an exploded view of the kit assembly of the present invention.

Figure 3 is a perspective view of the present invention.

Figure 4 is a front view of the present invention.

Figure 5 is a cross-sectional view taken along line A-A of Figure 4;

Figure 6 is a cross-sectional view showing the disassembly and assembly of the casing of the present invention.

Fig. 7 is a view (1) of the action of the lock screw of the screwdriver bit of the quick release structure of the present invention.

Figure 8 is a view (2) of the action of the lock screw of the screwdriver head of the present invention having a quick-reverse rotation structure.

Fig. 9 is a view (3) of the action of the lock screw of the screwdriver head with the quick release structure of the present invention.

Fig. 10 is a view showing the action of the reversing screw of the splitter head of the quick release reversing structure of the present invention.

In order to further understand the present invention, the preferred embodiment of the driver head post with the quick-reverse rotation structure is as shown in the following formulas 1 to 10, and includes at least:

The joint 1 is provided with a joint portion 10 for combining with various conventional hand tools or electric tools. The other end of the joint portion 10 is provided with a seat body 11. The end portion of the seat body 11 is recessed. a groove 12 for accommodating the driver head 2, and a plurality of perforations 13 are disposed around the circumference of the groove 12 to respectively receive a ball 130 therein, and through the balls 130 to jointly clamp the driver head 2; the groove 12 An abutting member 14 is disposed at the bottom thereof, and the tail end of the bit 2 is abutted in a point support manner, thereby reducing the friction between the post 1 and the bit 2 when the post 1 is idling, and the groove 12 is also obtained. A positioning element 15 is provided at the circumference to position the driver head 2 and to prevent the driver head 2 from slipping out of the groove 12. An annular groove 16 is disposed on the upper end of the base body 11 to sleeve a buckle ring 160. The base body 11 is also provided with a retaining ring 17 and the retaining ring 17 is disposed on the seat body through the buckle 160. 11 is not disengaged, and a first position limiting element 18 is disposed at an intermediate position of the seat body 11.

The screwdriver head 2 is disposed in the groove 12 of the connecting rod 1, and the rod portion of the screwdriver head 2 is a non-circular structure (for example, a hexagonal column shape), so that the ball 130 is obtained from the rod of the screwdriver head 2. The portions abut against each other and jointly clamp the screwdriver head 2; the locking portion of the end portion of the driver's head 2 is provided in the shape of a locking hole of the screw, so that the driver head 2 can drive the screw to rotate.

The sliding ring 3 is sleeved on the periphery of the connecting rod 1 , and a spring 30 is axially disposed between the sliding ring 3 and the connecting rod 1 to make the sliding ring 3 slide axially opposite to the connecting rod 1 . The inner side of the sliding ring 3 is provided with a first circumference 31 and a second circumference 32 at a position corresponding to the through hole 13 of the connecting rod 1. The second circumference 32 is disposed below the first circumference 31, and the second ring is disposed. The inner diameter of the circumference 32 is greater than the first The inner diameter of a ring 31, so that when the first ring 31 of the sliding ring 3 is located at the position of the through hole 13 of the post 1, the ball 130 in the through hole 13 and the bit 2 and the first ring 31 are mutually abutted. Contacting, the balls 130 jointly clamp the screwdriver head 2 and drive the screwdriver head 2 to rotate, and when the second ring 32 of the sliding ring 3 is located at the position of the through hole 13 of the post 1, the inner diameter of the second ring 32 is larger. Therefore, the ball 130 is pushed by the screwdriver head 2 toward the second ring 32, so that the post 1 cannot drive the bit 2 to rotate and idling. The sliding ring 3 is provided with a second limiting element 33 above the first ring 31, so that the second limiting element 33 is in abutting contact with the first limiting element 18 of the seat body 11, and the sliding ring is utilized. a second limiting member 33 of 3 and a spring 30 disposed between the second limiting member 33 and the buckle 160 (or the retaining ring 17), such that the sliding ring 3 is obtained from the seat body 11 or the buckle 160 (or The retaining ring 17) slides between the first stop element 18.

The sleeve body 4 is sleeved on the outer periphery of the sliding ring 3, and the length of the sleeve body 4 is matched with the assembly length of the connecting rod 1 and the screwdriver head 2 and the screw locking depth, and the inner side of the sleeve body 4 is blocked. The portion 40 is configured to limit the depth of the sliding ring 3 to be inserted into the sleeve 4, and the engaging member 41 is disposed between the sliding ring 3 and the sleeve 4, so that the sliding ring 3 is placed in the sleeve 4, and the card is used. The engaging member 41 engages the sleeve 4 and the sliding ring 3 to prevent the sleeve 4 from falling off. The engaging member 41 is an elastic ring body (as shown in FIGS. 1 and 5), a magnet or other easily disassembled. Fasteners, etc., are all indispensable, as long as the cover 4 can be easily installed and removed. The outer sleeve of the sleeve body 4 is provided with a non-slip grip portion 42 for the user to disassemble the sleeve body 4; an abutment ring 43 is disposed at the lower end of the sleeve body 4, and a magnet is disposed around the top ring 43 44, in order to use the magnet 44 to directly grasp the head of the screw 5, so that the screw 5 can be stably installed on the sleeve 4; of course, the sleeve 4 is also not provided with the top ring 43, only the sleeve 4 A magnet 44 is disposed at the lower end to directly attract the head of the screw 5 by the magnet 44, so that the screw 5 can be stably mounted on the sleeve 4, depending on the needs of use.

As shown in FIG. 7 and FIG. 9 , when the screwdriver head of the quick-reverse rotation structure of the present invention is used to lock the screw 5, the joint of the post 1 is connected to the hand tool or the electric tool, and a screw is provided. The part is combined with the screwdriver head 2, and the screw 5 is stably absorbed by the magnet 44 of the sleeve 4 to prevent the screw 5 Dropping; at this time, the first ring 31 of the sliding ring 3 and the screwdriver head 2 jointly abut the balls 130 in the top perforations 13, so that the balls 130 jointly clamp the screwdriver head 2, so that the post 1 can drive the screwdriver head 2 Rotate and lock the screw 5 into the structure 6 (as shown in Figure 7); when the screw 5 continues to lock down into the structure 6, the top ring 43 of the lower end of the sleeve 4 will be associated with the structure 6 Abutting against each other (as shown in FIG. 8), and as the screw 5 continues to lock into the structure 6, the sleeve 4 is pushed back by the structure 6, and then the sleeve 4 is synchronously driven to move the sliding ring 3 backward. When the first ring 31 of the sliding ring 3 is removed from the position of the through hole 13, the ball 130 in the through hole 13 can be pushed by the screwdriver head 2 to the second ring 32, so that the pin 1 is idling and avoiding The screw 5 is excessively locked into the structure 6, and the locking operation of the screw is completed (as shown in Fig. 9).

As shown in FIG. 10, when the screwdriver head with the quick-reverse rotation structure of the present invention is used to reversing the screw 5, only the sleeve 4 needs to be removed, and the screw 5 can be reversely removed, because the torque of the sleeve is removed. The volume of the releaser becomes smaller, and the length of the exposed head 2 is increased, so that the user can clearly see the position of the screwdriver head 2 when the screw is reversed, so that the screwdriver head 2 can be aligned with the screw head without being subjected to the torque. The occlusion of the release creates a problem that the position cannot be aligned.

Further, since the torsion release device of the present invention is not provided with the engagement flange, there is no problem that the engagement flange is broken during the operation; or the slide ring 3 is caught by the engagement flange. And whether the use of the thick, thin, soft or hard spring 30 has no effect on the operation of the torque release device, and it is not necessary to consider the vibration of the spring 30 caused by the vibration of the tool or whether the user can easily compress the spring 30, so that the manufacturer According to the design of various torque release devices, the spring 30 of appropriate volume or size can be selected to improve the practicality of the torque release device, which is the composition of the present invention.

The above-described embodiments or drawings are not intended to limit the scope of the invention, and the scope of the invention is to be construed as being limited by the scope of the invention.

1‧‧‧Pole

10‧‧‧Combination Department

11‧‧‧

12‧‧‧ Groove

13‧‧‧Perforation

130‧‧‧ balls

16‧‧‧ring groove

160‧‧‧ buckle

17‧‧ ‧ retaining ring

18‧‧‧First limit component

2‧‧‧ screwdriver head

3‧‧‧Sliding ring

30‧‧‧ Spring

33‧‧‧second limit element

4‧‧‧ Socket

41‧‧‧Snap components

43‧‧‧Round ring

44‧‧‧ magnet

Claims (10)

The utility model relates to a screwdriver head connecting rod with a quick-reverse rotation structure, which comprises at least a connecting rod, a joint portion, and a seat body at the other end of the joint portion, and a groove is recessed at an end portion of the seat body to accommodate the screwdriver a plurality of perforations are provided in the circumference of the groove to respectively receive a ball therein, and the ball head is commonly clamped through the balls; the screwdriver head is disposed in the groove of the post; the sliding ring, The sleeve is sleeved on the periphery of the connecting rod, and a spring is axially disposed between the sliding ring and the connecting rod, so that the sliding ring is axially slidably opposite to the connecting rod, and the inner side of the sliding ring corresponds to the connecting rod The piercing position is provided with a first ring circumference and a second ring circumference, the second ring circumference is disposed below the first circumference, and the inner diameter of the second circumference is larger than the inner diameter of the first circumference; the sleeve body, The sleeve is sleeved on the outer periphery of the sliding ring, and the length of the sleeve body is matched with the assembly length of the connecting rod and the screwdriver head and the locking depth of the screw. The inner side of the sleeve body is provided with a stopping portion to limit the sliding ring sleeve. a depth in the body, and a snapping element is disposed between the sliding ring and the sleeve body, After the slip ring into the housing body, to give the sleeve member by the engagement member is engaged with the slide ring is positioned. According to the patent application scope of claim 1, the quick-reversing structure of the splitter head, wherein the bottom of the groove is provided with an abutting element, and the end of the bit is abutted to reduce the post. Friction between idling and the starter head. A split-head joint having a quick-reverse reversal structure according to the first aspect of the patent application, wherein the groove is provided with a positioning member at the inner ring to position the bit and prevent the bit from slipping out of the groove. According to the first aspect of the invention, in the first embodiment, the upper end of the seat body is provided with an annular groove for arranging a buckle ring, and the intermediate position of the seat body is a first limiting component is disposed; the sliding ring is disposed above the first ring to provide a second limiting component, so that the second limiting component is in contact with the first limiting component of the seat body, and utilizes The second limiting element of the sliding ring and the spring disposed between the second limiting element and the buckle enable the sliding ring to slide between the buckle of the seat body and the first limiting element. According to the fourth aspect of the patent application, the splitter head of the quick-reverse rotation structure is provided, wherein the seat system is provided with a retaining ring, and the retaining ring is disposed on the seat body without being dislodged through the buckle. A split-head joint having a quick-reverse rotation structure according to the first aspect of the patent application, wherein the engaging element is an elastic ring body, a magnet or a fastener. According to the patent application scope of claim 1, the quick-reversing structure of the screwdriver head, wherein the outer periphery of the sleeve body is provided with a non-slip grip portion for the user to disassemble the sleeve. According to the patent application scope of claim 1, the quick-reversing structure of the screwdriver head, wherein the lower end of the sleeve is provided with an apex ring, and a magnet is arranged around the apex ring to directly use the magnet Hold the screw head and allow the screw to be securely mounted on the sleeve. According to the patent application scope of claim 1, the quick-reversing structure of the screwdriver head, wherein the lower end of the sleeve is provided with a magnet for directly sucking the screw head by the magnet, so that the screw is stably installed on the screw On the sleeve. According to the first aspect of the invention, in the first embodiment, the shank of the plucking head has a non-circular structure, so that the ball and the shank of the plucking head abut each other and The screwdriver head is clamped together; and the locking portion of the front end of the screwdriver is matched with the shape of the locking hole of the screw, so that the screwdriver head can drive the screw to rotate.