Dual-purpose socket

Abstract

A dual-purpose socket, comprising an outer socket (10) having a socket recess (11), a receiving recess (12) connected to the socket recess (11), and a shoulder (13) projecting radially between the socket recess (11) and the receiving recess (12); an inner socket (20) inserted into the outer socket (10) in a rotationally fixed manner and comprising a socket part (21) and a bushing part (22) into which the socket part (21) is inserted, the socket part (21) being inserted into the socket recess (11) and bearing axially against the shoulder (13), the bushing part (22) extending from the inner socket part (21) in the direction of the receiving recess (12); and a first elastic element (30) arranged in the receiving recess (12) and located between the shoulder (13) and the inner socket (20).

Description

Technical area

[0001] The invention relates to a socket, in particular a dual-purpose socket. State of the art

[0002] Fasteners are used in various products to assemble various components. Examples of fasteners include, but are not limited to, screws, nuts, bolts, etc. Most of them are tightened or loosened by turning. However, turning usually requires a socket to be placed onto the fastener. It is also necessary to insert the socket into an elongated force element to perform the turning action.

[0003] To simultaneously apply fasteners of different sizes, the multi-size socket was developed. The conventional multi-size socket consists of a plurality of relatively movable and nested inner and outer sockets, as well as a connecting rod extending from the inner and outer sockets for connecting to a driving tool (hand or power tool). Among them, the inner and outer sockets and the connecting rod are independent components. The connection between the inner and outer sockets and the connecting rod is achieved by C-rings or O-rings.

[0004] Although conventional multi-size sockets can be used for disassembling and assembling fasteners of different sizes, their structures are complex, and their assembly and manufacturing are difficult and time-consuming. These deficiencies must be urgently addressed.

[0005] Therefore, it is necessary to provide a novel and advanced dual-purpose socket to solve the above problems. Object of the invention

[0006] The object of the invention is to provide a dual-purpose socket whose construction is simple and whose assembly and manufacture are quick and easy.

[0007] This object is achieved by the dual-purpose socket of the invention, comprising an outer nut having a male recess, a female recess connected to the male recess, and a shoulder projecting radially between the male recess and the female recess; an inner nut rotatably fitted into the outer nut and including a male part and a female part into which the male part is inserted, the male part being inserted into the male recess and axially abutting the shoulder, the female part extending from the inner male part towards the female recess; and a first elastic element arranged in the female recess and located between the shoulder and the inner nut. Short description of the drawings Fig. 1 a perspective view of the embodiment of the invention, Fig. 2 an exploded view of the embodiment of the invention, Fig. 3 a sectional view of the embodiment of the invention, Fig. 4 and Fig. 5 representations of the movement of the invention. Ways to implement the invention

[0008] The following embodiments are only illustrative of the present invention and should not, however, limit the scope of the present invention.

[0009] Fig. 1 to Fig. 5 show an embodiment of the present invention. The dual-purpose socket 1 of the present invention includes an outer socket 10, an inner socket 20, and a first elastic member 30.

[0010] The outer nut 10 has a plug-in recess 11, a receiving recess 12 connected to the plug-in recess 11, and a shoulder 13 projecting radially between the plug-in recess 11 and the receiving recess 12. The inner nut 20 is non-rotatably inserted into the outer nut 10. The inner nut 20 includes a plug-in part 21 and a socket part 22 into which the plug-in part 21 is inserted. The plug-in part 21 is inserted into the plug-in recess 11 and axially abuts the shoulder 13. The socket part 22 extends from the inner plug-in part 21 toward the receiving recess 12. The first elastic element 30 is arranged in the receiving recess 12 and is located between the shoulder 13 and the inner nut 20. Therefore, the structure is simple, and assembly and manufacture are quick and easy. It can be used to tighten and unscrew fasteners of different sizes.

[0011] The outer nut 10 further includes an outer socket portion 14 that forms the plug-in recess 11. The plug-in part 21 is thinner than the outer socket portion 14. The plug-in recess 11 of the outer socket portion 14 is designed to receive a larger fastener (such as a nut, bolt, etc.). The plug-in recess 211 of the plug-in part 21 is designed to receive a smaller fastener. The thicker socket portion 14 provides greater structural strength for driving the larger fastener and is not easily damaged. The plug-in part 21 includes a plug-in portion 212. The socket portion 22 includes a plug-in hole 221. The plug-in hole 221 has a radial dimension equal to or slightly smaller than that of the plug-in portion 212. The plug-in section 212 is press-fitted into the plug-in hole 221. In this way, the plug-in part 21 and the socket part 22 can be connected easily, quickly, and stably.

[0012] In this embodiment, the plug portion 212 is polygonal, and the plug hole 221 is also polygonal. However, the plug portion 212 and the plug hole 221 can have any other circular or non-circular shape, as long as they can fit together to achieve an interference fit. In detail, the plug portion 212 has a plurality of outer flat surfaces 213 and a plurality of edges 214. The plug hole 221 has a plurality of inner flat surfaces 222 and a plurality of grooves 223. The plurality of outer flat surfaces 213 and the plurality of inner flat surfaces 222 create an interference fit. The plurality of edges 214 are received in the plurality of grooves 223 with clearance.

[0013] Preferably, the plug portion 212 has an arcuate surface 215 that extends into the plug hole 221 and engages the end of the socket part 22. The arcuate surface 215 gradually increases radially toward the outer nut 10 to ensure a press fit and prevent the plug portion 212 from being inserted too deeply. In this embodiment, a gap G is formed between the end surface of the plug portion 212 and the bottom surface of the plug hole 221 to prevent incomplete insertion.

[0014] The male part 21 has a smaller diameter than the female part 22. The first elastic element 30 is arranged between the shoulder 13 and the male part 21. Specifically, the first elastic element 30 is a coil spring and is inserted into the male part 21. The first elastic element 30 presses against the female part 22, so that the plug-in recess 211 of the male part 21 is located below the plug-in recess 11 of the female section 14 in the normal state. It is convenient and quick to directly use the plug-in recess 11 of the female section 14, and interference from the male part 21 is avoided.

[0015] In this embodiment, the dual-purpose socket 1 further comprises a locking mechanism 40 provided on the socket part 22. The locking mechanism 40 is movable between a locking position ( Fig. 4) and a release position ( Fig. 5) movable. When the locking mechanism 40 is in the release position, a plug element 50 can be inserted into or withdrawn from a connection hole 224 of the socket part 22. When the locking mechanism 40 is in the locking position, it locks the plug element 50 inserted into the connection hole 224. This enables quick assembly or replacement. The plug element 50 is, for example, a connecting rod that can be connected to a drive tool. Or the plug element 50 can be the head of the drive tool (e.g., Phillips head, slotted head, or other head of a screwdriver).

[0016] In detail, the socket part 22 also has a radial through-hole 225 and a radial blocking element 226 (integral projection or C-ring). The locking mechanism 40 includes a sliding sleeve 41, a second elastic element 42, and a limiting element 43. The sliding sleeve 41 is slidably fitted to the socket part 22. The sliding sleeve 41 has an inner flange 411, an inner projection portion 412, and a release groove 413. The inner flange 411 is axially blocked by the radial blocking element 226. The second elastic element 42 is a coil spring and is fitted to the socket part 22. The second elastic element 42 is arranged between the socket part 22 and the inner projection portion 412. The limiting element 43 is housed in the radial through-hole 225.When the locking mechanism 40 is in the release position, the limiting element 43 enters the release groove 413, thereby releasing the plug element 50. When the locking mechanism 40 is in the locking position, the limiting element 43 abuts the protrusion portion 412, thereby locking the plug element 43.

[0017] Preferably, the bushing part 22 further comprises an outer flange 227. The sliding sleeve 41 is arranged between the radial blocking element 226 and the outer flange 227. The sliding sleeve 41 can be displaced up to the outer flange 227 so that the release groove 413 can be quickly and accurately aligned with the limiting element 43 ( Fig. 5). List of reference symbols 1 dual-purpose socket 10 outer nut 11 Plug-in recess 12 Recess 13 Shoulder 14 Socket section 20 inner nut 21 plug-in part 211 socket part 212 plug-in section 213 outer flat surface 214 edge 215 arch area 22 socket part 221 plug hole 222 inner planar surface 223 groove 224 connecting hole 225 radial through hole 226 radial blocking element 227 Outer flange 30 first elastic element 40 Locking mechanism 41 sliding sleeve 411 inner flange 412 projection section 413 Release groove 42 second elastic element 43 Boundary element 50 plug-in elements G gap

Claims

[1] Dual-purpose socket, with an outer nut having a male recess, a female recess connected to the male recess, and a shoulder projecting radially between the male recess and the female recess; an inner nut which is inserted into the outer nut in a rotationally fixed manner and which includes a plug-in part and a socket part into which the plug-in part is inserted, the plug-in part being inserted into the plug-in recess and axially abutting the shoulder, the socket part extending from the inner plug-in part towards the receiving recess; and a first elastic element arranged in the receiving recess and located between the shoulder and the inner nut. [2] Dual-purpose socket according to claim 1, characterized by that the plug-in part has a plug-in section and the socket part has a plug-in hole, wherein the plug-in section is press-fitted into the plug-in hole. [3] Dual-purpose socket according to claim 2, characterized by that the plug-in section is polygonal and the plug-in hole is also polygonal. [4] Dual-purpose socket according to claim 2, characterized by that the plug-in portion has an arcuate surface extending into the plug-in hole and engaging the end of the socket part, the arcuate surface gradually increasing radially towards the outer nut. [5] Dual-purpose socket according to claim 1, characterized by that the plug-in part has a smaller diameter than the socket part, wherein the first elastic element is arranged between the shoulder and the plug-in part. [6] Dual-purpose socket according to claim 1, characterized by that the outer nut further comprises an outer socket portion forming the plug-in recess, wherein the plug-in part is thinner than the outer socket portion. [7] Dual-purpose socket according to claim 3, characterized bythat the plug portion has an arcuate surface which extends into the plug hole and engages with the end of the socket part, the arcuate surface gradually increasing radially towards the outer nut; that the plug part has a smaller diameter than the socket part, the first elastic element being arranged between the shoulder and the plug part; the outer nut further has an outer socket portion which forms the plug recess, the plug part being thinner than the outer socket portion; that the first elastic element is a coil spring; that a gap is formed between the end surface of the plug portion and the bottom surface of the plug hole;that the plug-in portion has a plurality of outer flat surfaces and a plurality of edges, wherein the plug-in hole has a plurality of inner flat surfaces and a plurality of grooves, wherein the plurality of outer flat surfaces and the plurality of inner flat surfaces create a press fit, and wherein the plurality of edges are received with play in the plurality of grooves; [8] Dual-purpose socket according to one of claims 1 to 7, characterized by a locking mechanism provided on the socket part, the locking mechanism being movable between a locking position and a release position, wherein, when the locking mechanism is in the release position, a plug element can be inserted into or withdrawn from a connection hole of the socket part, and when the locking mechanism is in the locking position, it locks the plug element inserted into the connection hole. [9] Dual-purpose socket according to claim 8, characterized bythat the socket part has a radial through-hole and a radial blocking element, wherein the locking mechanism includes a sliding sleeve, a second elastic element, and a limiting element, wherein the sliding sleeve is slidably plugged onto the socket part, wherein the sliding sleeve has an inner flange, an inner projection portion, and a release groove, wherein the inner flange is axially blocked by the radial blocking element, wherein the second elastic element is arranged between the socket part and the inner projection portion, wherein the limiting element is housed in the radial through-hole, and wherein, when the locking mechanism is in the release position, the limiting element enters the release groove, thereby releasing the plug element, and when the locking mechanism is in the locking position, the limiting element bears against the projection portion,which locks the plug-in element. [10] Dual-purpose socket according to claim 9, characterized by that the bushing part has an outer flange, wherein the sliding sleeve is arranged between the radial blocking element and the outer flange, and wherein the sliding sleeve can be displaced up to the outer flange.

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