Tool coupling structure

Abstract

The utility model provides a tool connecting structure which comprises a body, a sliding sleeve, a piston seat, a ball body and a steel ball. A central hole and a polygonal hole which are communicated with each other are formed in the body. A first hole penetrates through the body and is used for receiving the bead body. A second hole penetrates through the body and can receive the steel ball. The sliding sleeve is movably sleeved outside the body, and a movement hole is used for receiving the part, where the first hole and the second hole are formed, of the body. The wall of the moving hole sinks into a groove, the steel ball falls into the groove, the piston seat crosses the steel ball and moves in the center hole, and the blocking edge of the polygonal hole blocks the piston seat from leaving. The wall of the moving hole is in contact with the steel ball, and the steel ball passes through the second hole, is exposed out of the center hole and blocks the piston seat. The movement hole is connected to an opening of the sliding sleeve through a conical hole, the wall of the conical hole makes contact with the bead body, and the bead body is exposed out of the polygonal hole through the first hole and used for clamping a screwdriver bit.

Description

Technical Field

[0001] This utility model relates to the field of tools, and more particularly to a combined structure that combines two tools together. Background Technology

[0002] U.S. Patent No. 9,731,356 discloses a tool connector comprising a tool receiving port configured to move between a first fixed position and a second fixed position. Typically, the tool receiving port is normally positioned in the first fixed position and is movable to the second fixed position.

[0003] The tool connector also includes a magnetic mechanism and a locking mechanism. The magnetic mechanism comprises a shuttle and a plug. The shuttle reciprocates within the tool receiving portion, with an annular lip on the receiving portion serving as the endpoint of the shuttle's travel. The plug, embedded in the shuttle, applies a magnetic force to a working tool, such as a screwdriver bit, engaging it in a first or second fixed position within the tool receiving portion.

[0004] The locking mechanism comprises two ball bearings that move toward each other. In a first fixed position, the two ball bearings have no effect on the screwdriver bit. In a second fixed position, a circumferential groove of the screwdriver bit is locked by the two ball bearings.

[0005] U.S. Patent No. 7,424,841 describes a tool connector that alters the locking mechanism, affecting the structure of the magnetic mechanism to achieve an effect similar to a ring lip. The locking mechanism includes a single first bead and two second beads. The first bead engages a third groove in the screwdriver tip, allowing the tip to connect to the tool connector. The magnetic mechanism embeds a magnet into a movable member. The movable member has a circumferentially recessed second groove on its outer surface, which can be locked by the two opposing second beads.

[0006] After being unlocked, the first bead no longer gets stuck in the groove, and consequently, the second bead no longer locks the inclined guide groove. Under the attraction of the magnetic force, the screwdriver tip leaves the tool connector, attracting the slide sleeve to move in the same direction. The second bead contacts the outer surface of the slide sleeve, using friction to counteract the magnetic force, causing the slide sleeve to remain inside the tool connector. Utility Model Content

[0007] In view of this, the main purpose of this utility model is to provide a tool linkage structure that improves the design of the mechanical structure based on the concept of each component performing its own function, and aims to achieve both locking and blocking effects with the fewest components, effectively solving the drawbacks of previous technologies that were costly.

[0008] To achieve the aforementioned objectives, this utility model provides a tool assembly structure, comprising: a body, a sliding sleeve, a piston seat, a ball, and a steel ball. The body includes: a central hole forming the interior of the body; a polygonal hole forming the interior of the body, communicating with the central hole; multiple flanges forming the intersection of the polygonal hole and the central hole; a first hole penetrating the body diagonally through the polygonal hole; and a second hole penetrating the body radially through the central hole. The sliding sleeve is movably fitted onto the outside of the body and includes: a moving hole receiving portions of the body forming the first and second holes; a groove recessed into the wall of the moving hole; and a conical hole connecting the moving hole to an opening of the sliding sleeve. The piston seat reciprocates within the central hole and includes: a magnet disposed within the piston seat. The ball is inserted into the first hole, contacting the wall of the conical hole and protruding from the polygonal hole. The steel ball is inserted into the second hole, contacts the wall of the moving hole, exposes the central hole and blocks the piston seat. The groove faces the second hole and receives the steel ball. The piston seat passes over the steel ball, and the retaining flange prevents the piston seat from leaving.

[0009] Preferably, the body further includes: a shoulder forming the outer surface of the body; a ring closely contacting the outer surface of the body, the ring being spaced apart from the shoulder; the slide also includes: a rib protruding from the inner side of the slide, the rib being between the ring and the shoulder; a compression spring fitted on the outer surface of the body, resisting the ring and pushing the rib closer to the shoulder as a normal state.

[0010] Preferably, a rod engages one end of the central hole to prevent the piston seat from retracting from the body. The piston seat also includes a post extending from the piston seat at a different end from the magnet. An elastic element is fitted onto the post, resisting the rod and normally pushing the magnet of the piston seat toward the polygonal hole in the body.

[0011] Advantages of this utility model:

[0012] I. The mechanical design of this embodiment is appropriately improved by replacing the single first bead with a ball body and replacing the two second beads with a steel ball. By using the fewest components, the dual effect of locking and blocking similar to that of U.S. Patent No. 7,424,841 is achieved, effectively solving the drawbacks of the cost of previous technologies.

[0013] Second, the flange blocks the piston seat, which is equivalent to the function of the annular lip. The steel ball blocks the piston seat again, causing the magnet to approach the entrance and exit of the polygonal hole. Therefore, the piston seat's effect of attracting the screwdriver tip to move together is superior to that of U.S. Patent No. 9,731,356.

[0014] Third, the bead holds the screwdriver tip in place, which is equivalent to two balls holding the screwdriver tip in place. Therefore, this embodiment is similar to U.S. Patent No. 9,731,356, but uses the fewest components, thus overcoming the disadvantage of cost waste.

[0015] To make the objectives, features and advantages of this utility model readily understandable, one or more preferred embodiments are listed below, and described in detail with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is an exploded view of a preferred embodiment of the drawing tool connector.

[0017] Figure 2 To demonstrate the assembled tool connector.

[0018] Figure 3 The tool connector, after being disassembled, is shown to reveal its internal structure.

[0019] Figure 4 To cut open the sliding sleeve, the corresponding positions of the ball and the steel ball on the main body are shown.

[0020] Figure 5 To depict the internal connections of the tool connector.

[0021] Figure 6 The internal components of the display tool connector are awaiting use.

[0022] Reference numerals in the attached drawings: Tool connector 10; Body 11; Rod 12; Ring 13; Sliding sleeve 14; Screwdriver head 15; Drive end 16; Circumferential groove 17; Corner groove 18; Shoulder 19; Center hole 20; Polygonal hole 21; Flange 22; First hole 23; Second hole 24; Bead 25; Steel ball 26; Piston seat 30; Circular groove 31; Magnet 32; Column 33; Elastic element 34; Rib 40; Inner circumferential surface 41; Moving hole 42; Chamber 43; Groove 44; Conical hole 45; Opening 46; Compression spring 47. Detailed Implementation

[0023] Next, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same or similar structures or units. It is to be understood that the described embodiments are merely examples of some aspects of the present invention, and not all embodiments. Other embodiments can be deduced based on the described examples, or modifications and variations may be made as needed, all of which fall within the scope of protection of the present invention.

[0024] In the following description, directional terms such as "up," "down," "left," "right," "front," "back," "inner," "outer," and "side" are used only for reference to the directions in the accompanying drawings. The use of directional terms is for the purpose of better and clearer description and understanding of this utility model, and does not imply that the described device or element must have a specific orientation, structure, or operation, and therefore should not be construed as a limitation on the technical content of this utility model.

[0025] Unless specifically and explicitly stated otherwise, in the following description, "installed," "connected," "attached," or "on" should be interpreted broadly, including, for example, fixed connection, detachable connection, integral connection, mechanical connection, direct connection, indirect connection, or connection between two components. Those skilled in the art will understand the meaning of these terms in various embodiments, and even in the specific context of this invention, based on ordinary knowledge or experience.

[0026] Unless otherwise stated, in the following description, "multiple" means two or more.

[0027] exist Figure 1 In a preferred embodiment of the present invention, a tool connector 10 is detachable and consists of a body 11, a rod 12, a ring 13, a sliding sleeve 14, a ball 25, a steel ball 26, a piston seat 30, a magnet 32, an elastic element 34, and a compression spring 47.

[0028] The body 11 has a central hole 20 that is interconnected inside (see...) Figure 3 The body 11 is a tube because it has a polygonal hole 21. In this embodiment, the polygonal hole 21 has six corners, and the distance between two opposite corners is greater than the diameter of the central hole 20. The polygonal hole 21 has six sides, and the distance between two opposite sides is less than the diameter of the central hole 20. The sides intersect the central hole 20 to form a flange 22, and there are six flanges 22 in the polygonal hole 21.

[0029] In this embodiment, the rod 12 is a hexagonal prism with a recessed circumferential groove 17. Next, we see... Figure 2 , Figure 3The six corners of the rod 12 engage with the wall of the central hole 20, making the rod 12 and the body 11 not easily separated. The circumferential groove 17 helps the tool connector 10 connect a tool (not shown), such as a hand tool, power tool, or pneumatic tool.

[0030] In other embodiments, the rod 12 is round and closely contacts (also known as clamps) one end of the central hole 20, so that the rod 12 is attached to the body 11 and does not easily separate.

[0031] In some embodiments, the body 11 is combined with a grip (not shown) that closes one end of the central hole 20, which is within the scope of this invention.

[0032] from Figure 1 , Figure 3 It is understood that the piston seat 30, inserted into the central hole 20, is obstructed by the rod 12 (or the grip), thus preventing the piston seat 30 from easily leaving the body 11. The diameter of the piston seat 30 is smaller than the diameter of the central hole 20. Along a virtual axis defined by the central hole 20, the piston seat 30 moves relative to the body 11 between the rod 12 and the flange 22. A circular groove 31 is recessed into one end of the piston seat 30 to receive the magnet 32. A post 33 extends from one end of the piston seat 30, pointing towards the rod 12 (or the grip). The magnet 32 ​​faces the opening of the polygonal hole 21, and it and the post 33 are located at opposite ends of the piston seat 30.

[0033] In this embodiment, the elastic element 34 is also a compression spring. The elastic element 34 is inserted into the central hole 20 and sleeved on the outside of the post 33. The elastic element 34 resists the rod 12 (or the grip), pushing the piston seat 30 toward the opening of the polygonal hole 21 as is normal.

[0034] like Figure 3 As shown, the outer surface of the central hole 20 to the body 11 has two different thicknesses, resulting in a shoulder 19 at the junction of a thick tube wall and a thin tube wall of the body 11. The thin tube wall passes through the ring 13, the sliding sleeve 14, and the compression spring 47.

[0035] Looking back Figure 1 The sleeve 14 is a cylinder, and the outer circumferential surface of the cylinder is formed with a texture (not shown) to increase friction and prevent loosening, such as embossing.

[0036] Then I saw Figure 3A rib 40 protrudes from the inner side of the slide sleeve 14, separating a movement hole 42 and a chamber 43 on the inner side of the slide sleeve 14. An inner circumferential surface 41 forms the inner side of the rib 40. The diameter of the inner circumferential surface 41 is smaller than the diameter of the thick tube wall but larger than the diameter of the thin tube wall. Therefore, the thin tube wall passes through the rib 40, allowing the body 11 and the slide sleeve 14 to move relative to each other. The thin tube wall, in conjunction with the rib 40 and the wall of the slide sleeve 14, makes the chamber 43 a semi-open annular space for receiving the compression spring 47.

[0037] The ring 13 is in close contact with the thin tube wall and remains stationary on the body 11. The ring 13 blocks the opening in the annular space and is positioned opposite the shoulder 19, thus forming the basis for the compression spring 47 to generate a force.

[0038] The compression spring 47 resists the ring 13, applying force to the rib 40, pushing the slide sleeve 14 to displace along the axial direction of the body 11, until the rib 40 contacts the shoulder 19. At this moment, the compression spring 47 is in a released state, allowing the rib 40 to move away from the ring 13, becoming the endpoint of the slide sleeve 14's displacement. Conversely, the rib 40 moves closer to the ring 13, causing the compression spring 47 to be in a state of force accumulation (see [link to previous text]). Figure 6 (As shown).

[0039] from Figure 4 It is understood that the thick tube wall of the main body 11 extends through a first hole 23 and a second hole 24. The compression spring 47 pushes the sliding sleeve 14, allowing the moving hole 42 to receive the thick tube wall.

[0040] exist Figure 5 In the middle, according to the diagonal direction of the polygonal hole 21, the first hole 23 penetrates the thick tube wall of the body 11 and is used to receive the bead 25.

[0041] The sliding sleeve 14's movement hole 42 receives the thick tube wall of the body 11, thus shielding the outlets of the first hole 23 and the second hole 24. The movement hole 42 connects to the smaller diameter end of a conical hole 45, the larger diameter end of which connects to an opening 46 of the sliding sleeve 14. Under the action of the compression spring 47, the bead 25 contacts the wall of the movement hole 42 and / or the conical hole 45, partially exposing the polygonal hole 21 without falling off.

[0042] Looking back Figure 3 The second hole 24 penetrates the thick wall of the body 11 along the radial direction of the central hole 20, and is used to receive the steel ball 26. The steel ball 26 contacts the wall of the moving hole 42, partially exposing the central hole 20, and can block the piston seat 30.

[0043] from Figure 6It is understood that a groove 44 is embedded in the wall of the moving hole 42. The outlet of the groove 44 faces the second hole 24 and is used to receive the steel ball 26 that has retreated into the second hole 24. The steel ball 26 no longer protrudes from the central hole 20, so that the elastic member 34 pushes the piston seat 30 past the steel ball 26 and continues to advance towards the polygonal hole 21, where it is blocked by the retaining flange 22 and cannot leave the body 11. In other words, during the linear motion of the piston seat 30 relative to the body 11, the steel ball 26 serves as the starting point of the stroke, and the retaining flange 22 serves as the ending point.

[0044] Now combined Figure 1 The diagram further illustrates the operating principle of the tool connector 10. A screwdriver bit 15 has a drive end 16. In this embodiment, the drive end 16 is star-shaped (Torx). In some embodiments, the drive end 16 is slotted, Phillips, hexagonal, square (Robertson), forked (Pozidriv), or other geometric shapes. The screwdriver bit 15 also has six corners (unlabeled) with corner grooves 18.

[0045] like Figure 4 , Figure 6 As shown, the sliding sleeve 14 is subjected to force and moves from the thick wall of the body 11 towards the thin wall. The rib 40, near the ring 13, compresses the volume of the compression spring 47. The groove 44 faces the outlet of the second hole 24 and receives a portion of the steel ball 26. The steel ball 26 exits the central hole 20 and no longer blocks the piston seat 30. The force released by the elastic member 34 acts on the piston seat 30, and the piston seat 30 passes over the steel ball 26 and enters the polygonal hole 21. The retaining flange 22 resists the piston seat 30, so that the magnet 32 ​​is located in the polygonal hole 21.

[0046] At this moment, the conical hole 45 faces the outlet of the first hole 23, allowing the bead 25 to exit the polygonal hole 21. The screwdriver bit 15 is inserted into the polygonal hole 21, and together with the piston seat 30, it penetrates into the central hole 20 of the body 11. The post 33 approaches the rod 12, and the piston seat 30 cooperates with the rod 12 to compress the volume of the elastic member 34. At the same time, the magnet 32 ​​attracts the screwdriver bit 15.

[0047] from Figure 4 , Figure 5As shown, after the sliding sleeve 14 is released, the compression spring 47 releases its force, pushing the rib 40 to displace the sliding sleeve 14 from the thin wall of the body 11 to the thick wall. The conical hole 45 exits the outlet of the first hole 23, and the wall of the moving hole 42 presses against the ball 25, partially exposing the polygonal hole 21. The ball 25 locks into the corner groove 18, preventing the screwdriver tip 15 from leaving the tool connector 10. At the same time, the groove 44 exits the second hole 24, with the wall of the moving hole 42 pressing against the steel ball 26, partially exposing the center hole 20.

[0048] like Figure 3 Generally, the steel ball 26 blocks the piston seat 30 without affecting the operation of the screwdriver head 15 by the tool connector 10.

[0049] exist Figure 2 In this configuration, the tool connector 10 attaches the screwdriver head 15 to the tool. The drive end 16 protrudes from the tool connector 10 for tightening or loosening a screw-like workpiece (not shown).

[0050] Back Figure 6 As shown, the sliding sleeve 14 is subjected to force and moves from the thick tube wall of the body 11 toward the thin tube wall. The conical hole 45 faces the outlet of the first hole 23, allowing the ball 25 to exit the polygonal hole 21 and no longer jam the corner groove 18. The screwdriver bit 15 is pulled out of the tool connector 10 to perform the replacement operation of other screwdriver bits 15. Because the groove 44 faces the second hole 24, the steel ball 26 exits the center hole 20, so the elastic member 34 pushes the piston seat 30 to the polygonal hole 21, and the retaining flange 22 separates the piston seat 30 from the screwdriver bit, interrupting the attraction of the magnet 32.

[0051] Then I saw Figure 5 As shown, the polygonal hole 21 receives other screwdriver bits 15. Releasing the sliding sleeve 14 causes the compression spring 47 to push the sliding sleeve 14 back to its original position. The wall of the moving hole 42 presses against the ball 25, exposing it within the polygonal hole 21, and again engages the corner groove 18 of the screwdriver bit 15. Because the groove 44 is not aligned with the second hole 24, the wall of the moving hole 42 prevents the steel ball 26 from retracting into the groove 44. Therefore, the steel ball 26 is exposed in the central hole 20 and blocks the piston seat 30, without affecting the magnet 32's attraction of the screwdriver bit 15.

[0052] In summary, the tool connector 10 has the following advantages:

[0053] I. The mechanical design of this embodiment is appropriately improved by replacing the single first bead with a bead body 25 and replacing the two second beads with a steel ball 26. By using the fewest components, the dual effect of locking and blocking similar to that of U.S. Patent No. 7,424,841 is achieved, effectively solving the drawbacks of costly prior art.

[0054] Second, the retaining flange 22 blocks the piston seat 30, which is equivalent to the function of an annular lip. The steel ball 26 blocks the piston seat 30 again, causing the magnet 32 ​​to approach the entrance and exit of the polygonal hole 21. Therefore, the piston seat 30 has a better effect of attracting the screwdriver tip 15 to move together than the U.S. Patent No. 9,731,356.

[0055] Third, the bead 25 holds the screwdriver tip 15, which is equivalent to two balls holding the screwdriver tip 15. Therefore, this embodiment is similar to U.S. Patent No. 9,731,356, but uses the fewest components, thus overcoming the disadvantage of cost waste.

[0056] Without departing from the broad concept of this utility model, those skilled in the art will understand and modify the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed in this specification. For example, any modifications made in accordance with the spirit and technical scope of this utility model should be covered and protected by the textual content defined by this utility model.

Claims

1. A tool linkage structure, characterized in that, include: A body includes: a central hole forming the interior of the body; a polygonal hole forming the interior of the body and communicating with the central hole; a plurality of flanges forming the intersection of the polygonal hole and the central hole; a first hole penetrating the body diagonally through the polygonal hole; and a second hole penetrating the body radially through the central hole. A sliding sleeve is movably fitted onto the outside of the body. The sliding sleeve includes: a movement hole that receives portions of the body forming the first hole and the second hole; a groove that recesses into the wall of the movement hole; and a conical hole that connects the movement hole to an opening of the sliding sleeve. A piston seat that is inserted into the central hole and reciprocates, the piston seat comprising: a magnet disposed in the piston seat; A bead, inserted into the first hole, the bead contacting the wall of the conical hole while remaining exposed in the polygonal hole; and A steel ball is inserted into the second hole, the steel ball contacts the wall of the moving hole, exposes the center hole and blocks the piston seat, the groove faces the second hole to receive the steel ball, the piston seat passes over the steel ball, and the retaining edge prevents the piston seat from leaving.

2. The tool linkage structure as described in claim 1, characterized in that, The body also includes: a shoulder that forms the outer surface of the body; A ring that is in close contact with the outer surface of the body, the ring being spaced a distance from the shoulder; The slide also includes a rib that protrudes from the inner side of the slide, the rib being located between the ring and the shoulder; A compression spring, which is fitted onto the outer surface of the body, resists the ring and pushes the rib closer to the shoulder as is the norm.

3. The tool linkage structure as described in claim 1, characterized in that, The body is attached to a rod that seals one end of the central hole to prevent the piston seat from retracting.

4. The tool linkage structure as described in claim 1, characterized in that, The body incorporates a grip that seals one end of the central bore to prevent the piston seat from retracting.

5. The tool linkage structure as described in claim 3, characterized in that, The piston seat also includes: a post that extends from the piston seat at a different end from the magnet; An elastic element, fitted onto the post, resists the rod, normally pushing the magnet of the piston seat toward the polygonal hole of the body.

6. The tool linkage structure as described in claim 4, characterized in that, The piston seat also includes: a post that extends from the piston seat at a different end from the magnet; An elastic element, fitted onto the post, resists the grip and normally pushes the magnet of the piston seat toward the polygonal hole of the body.

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