Multifunctional wrench

Abstract

The utility model relates to a multifunctional wrench, which comprises an approximately L-shaped driving rod main body, and the driving rod main body comprises a first driving rod section, a second driving rod section and a bending section connected with the first driving rod section and the second driving rod section; a handle body extending in a longitudinal direction, the handle body being secured to the drive rod body at the bending section, where the first drive rod section extends from the handle body in the longitudinal direction; the first driving rod section is arranged on the handle body in the longitudinal direction, the metal end cover is arranged at the end, opposite to the first driving rod section in the longitudinal direction, of the handle body, and the reinforcing block is connected with the metal end cover and the driving rod body.

Description

Technical Field

[0001] This utility model relates to the field of wrench technology, and more specifically to a multifunctional wrench. Background Technology

[0002] Screws are common fasteners widely used in various mechanical equipment, construction, and electronic products. They come in a variety of shapes and types to meet different application needs. Hexagonal screws are the most common type, with a hexagonal head. Due to their six facets, they can be tightened using tools such as wrenches and sockets, providing significant turning force. Hexagonal screws are typically used in mechanical equipment, large-scale engineering construction, and other applications requiring high torque. They offer good stability and resistance to loosening, making them common in high-strength applications. Internal hexagonal screws have a concave hexagonal head shape, allowing for tightening with an internal hex wrench. This design provides high torque transmission capacity, and the compact head shape makes them suitable for spaces with limited space. Internal hexagonal screws are widely used in precision equipment, mechanical assembly, and electronic equipment. Some automobiles or mechanical equipment use hexagonal star screws to reinforce important or valuable components, especially to prevent damage from disassembly with ordinary tools or to reduce intervention by non-professionals.

[0003] A multi-purpose wrench is used to tighten or loosen screws or bolts, such as hexagonal screws, socket head cap screws, and star screws. The wrench includes socket head cap wrenches, hex wrenches, and star wrenches. Multi-purpose wrenches are common tools for tightening socket head cap screws, socket head cap screws, and star screws in daily life and work. Multi-purpose wrenches are typically L-shaped or T-shaped. L-shaped wrenches have two arms of different lengths, providing different torque and turning angles, allowing the user to choose which arm to hold as needed. T-shaped wrenches are suitable for applications requiring greater torque and have a straighter handle, providing better operational control.

[0004] After prolonged use and exposure to moisture, dust, or corrosive substances, screws may become worn, rusted, or damaged, affecting the disassembly process and even making operation impossible. Rusty or damaged screws can make it difficult for a multi-tool wrench to engage with the screw head. Especially when the shape of the screw head has changed (e.g., rust, wear, or deformation), the wrench's contact surface no longer matches the screw head, making it impossible to hold the screw securely. A common method is to use a hammer to tap the other end of the screw or bolt to loosen it, making it easier to loosen and remove with the wrench. However, this requires a separate hammer, and if a hammer is not available, the multi-tool wrench cannot be used for disassembly because the grip of a multi-tool wrench is usually made of plastic, which is not suitable for hammering and does not meet the user's need for other tools (such as a hammer).

[0005] Therefore, there is a need in the art to provide a multi-functional wrench that can not only be used to tighten or loosen fasteners such as screws or bolts, but also can be used as, for example, a hammer, to tap the fastener or its other end to loosen it when it is difficult to loosen, thereby making it easy to loosen the fastener for disassembly by the wrench. Utility Model Content

[0006] One of the objectives of this utility model is to provide a multi-functional wrench that can also be used as a hammer to tap the fastener or its other end when it is difficult to loosen it, thereby making it easy to loosen and disassemble the fastener using the multi-functional wrench.

[0007] According to one aspect of the present invention, a multifunctional wrench is provided comprising:

[0008] The drive rod body is roughly L-shaped, and includes a first drive rod section, a second drive rod section, and a curved section connecting the first drive rod section and the second drive rod section.

[0009] A handle body extending in a longitudinal direction, the handle body being fixed to the drive rod body at the curved section, wherein the first drive rod section extends from the handle body in the longitudinal direction;

[0010] A metal end cap, wherein the metal end cap is disposed on one end of the handle body opposite to the first drive rod segment along the longitudinal direction, and

[0011] A reinforcing block that connects the metal end cap and the drive rod body.

[0012] In one aspect of the present invention, the reinforcing block includes a recessed groove from one side, the groove being configured to receive the drive rod body, preferably the groove being an L-shaped groove, and preferably the depth of the L-shaped groove being greater than the maximum outer diameter of the drive rod body.

[0013] In another aspect of this utility model, the handle body is provided with a blind hole, and a shoulder is provided in the blind hole. The metal end cap includes a longitudinally extending plug portion, and the plug portion is provided with a collar groove. The collar groove is configured to receive the shoulder when the metal end cap is located in the blind hole.

[0014] In another aspect of the present invention, the drive rod body extends through the reinforcing block, and the curved section is located inside the reinforcing block.

[0015] In another aspect of the present invention, the reinforcing block comprises two halves, each half including a semi-channel for receiving the drive rod body, the two halves being fastened together by fasteners, preferably, the handle body being overmolded onto the reinforcing block and the drive rod body.

[0016] In another aspect of the present invention, the reinforcing block includes a protrusion extending in a longitudinal direction, the protrusion being configured to connect to the metal end cap.

[0017] In another aspect of the present invention, the metal end cap includes a longitudinally extending plug portion, the plug portion being formed to have a hollow interior, the protrusion being able to be inserted into the hollow interior, preferably, the plug portion forming an outwardly expanding flared portion at the open end.

[0018] In another aspect of this invention, the length of the protrusion is less than or equal to the length of the hollow interior of the collar.

[0019] In another aspect of this utility model, the end of the drive rod body is in the shape of a regular hexagon, an inner hexagonal sleeve, or a hexagonal star.

[0020] In another aspect of this invention, the end of the drive rod body and / or the metal end cap are magnetic.

[0021] In another aspect of this invention, the strength of the metal end cap is greater than or equal to the strength of the reinforcing block.

[0022] In another aspect of this invention, the metal end cap and the reinforcing block are integral.

[0023] In this utility model, the multi-functional wrench includes a metal end cap disposed at one end of the handle body. The multi-functional wrench can also be used as a hammer to strike the fastener or its other end when the fastener is difficult to loosen, thereby loosening the fastener and making it easy to loosen and disassemble the fastener by means of the multi-functional wrench. Attached Figure Description

[0024] The object and features of this utility model will become apparent from the following detailed description taken in conjunction with the accompanying drawings. However, it should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of this utility model.

[0025] Figure 1 A perspective view of a multi-functional wrench according to an embodiment of the present invention is shown;

[0026] Figure 2 An exploded perspective view of a multi-functional wrench according to an embodiment of the present invention is shown;

[0027] Figure 3 A longitudinal cross-sectional view of a multi-functional wrench according to an embodiment of the present invention is shown;

[0028] Figure 4 An exploded perspective view of a portion of a multi-functional wrench according to an embodiment of the present invention is shown, wherein the reinforcing block is shown assembled onto the drive rod body;

[0029] Figure 5 A perspective view of the reinforcing block of a multi-functional wrench according to one embodiment of the present invention is shown from another angle;

[0030] Figure 6 A longitudinal cross-sectional view of the handle body of a multi-functional wrench according to an embodiment of the present invention is shown;

[0031] Figure 7 A perspective view of the metal end cap of a multi-functional wrench according to an embodiment of the present invention is shown;

[0032] Figure 8 A perspective view of the drive rod body of a multi-functional wrench according to an embodiment of the present invention is shown;

[0033] Figure 9 A perspective view of the drive lever body of a multi-functional wrench according to another embodiment of the present invention is shown; and

[0034] Figure 10 A perspective view of the drive rod body of a multifunctional wrench according to another embodiment of the present invention is shown. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" and the like should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more. It should also be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] To facilitate understanding of the technical solution of this utility model by those skilled in the art, the technical solution of this utility model will be further described in conjunction with the accompanying drawings. In the drawings, the same reference numerals refer to the same or similar elements.

[0039] Figure 1 A perspective view of a multi-functional wrench 1000 according to an embodiment of the present invention is shown. Figure 2 An exploded perspective view of a multi-functional wrench 1000 according to an embodiment of the present invention is shown. Figure 3 A longitudinal cross-sectional view of a multi-functional wrench 1000 according to one embodiment of the present invention is shown. In one embodiment of the present invention, the multi-functional wrench 1000 includes a drive rod body 1 and a handle body 2. The multi-functional wrench 1000 is configured to engage the drive rod body 1 with an object to be tightened or loosened (e.g., a screw or bolt), and the handle body 2 is held by a user to apply rotational torque to tighten or loosen the object.

[0040] Figure 8A perspective view of the drive rod body 1 of a multi-functional wrench 1000 according to an embodiment of the present invention is shown. Figure 8 As shown, the drive rod body 1 is generally L-shaped, including a first drive rod segment 11, a second drive rod segment 12, and a bent segment 13 connecting the first drive rod segment 11 and the second drive rod segment 12. In one embodiment, the first drive rod segment 11 has a first length, and the second drive rod segment 12 has a second length greater than the first length. In one embodiment of the present invention, the drive rod body 1 is manufactured as a single piece. The ends of the drive rod body 1 can be manufactured in different shapes to drive screws or bolts of different shapes. For example, in Figure 8 In this design, the end 14 of the drive rod body 1 is manufactured in a hexagonal shape for tightening or loosening internal hexagonal screws or bolts. Figure 9 A perspective view of the drive rod body 1 of a multi-functional wrench 1000 according to another embodiment of the present invention is shown. Figure 9 As shown, the end 15 of the drive rod body 1 is manufactured in a hexagonal shape for tightening or loosening internal hexagonal screws or bolts. Figure 10 A perspective view of the drive rod body 1 of a multi-functional wrench 1000 according to another embodiment of the present invention is shown. Figure 10 As shown, the end 16 of the drive rod body 1 is manufactured in the shape of an internal hexagonal socket for tightening or loosening hexagonal screws or bolts. In one embodiment, the end of the drive rod body 1 can be configured with a replaceable adapter, through which various sizes and types of screwdriver bits can be connected or installed to accommodate screws or bolts of various specifications. In one embodiment, the end of the drive rod body 1 is magnetic to facilitate the magnetic attraction of fasteners such as screws or bolts.

[0041] like Figure 1-3 As shown, in one embodiment of the present invention, the multi-functional wrench 1000 includes a handle body 2 extending along the longitudinal direction X. The handle body 2 is fixed to the drive rod body 1 at the curved section 13, wherein the first drive rod section 11 extends from the handle body 2 along the longitudinal direction X. In one embodiment of the present invention, the multi-functional wrench 1000 further includes an end cap 4. The end cap is preferably a metal end cap 4, which is disposed on the end of the handle body 2 opposite to the first drive rod section 11 along the longitudinal direction X. Figure 1In one embodiment, the metal end cap 4 is disposed at the rear end. The metal end cap is made of, for example, a known high-strength low-alloy steel such as 50BV30, which is capable of withstanding large loads and impacts. In one embodiment, additional impact force can be applied by striking the metal end cap with a hammer. In one embodiment, the strength of the metal end cap is greater than or equal to the strength of the reinforcing block.

[0042] exist Figure 1-3 In the illustrated embodiment, the multi-functional wrench 1000 may further include a reinforcing block 3 connecting the metal end cap 4 and the drive rod body 1. In one embodiment, the drive rod body 1 extends through the reinforcing block 3, and the bent section 13 is located inside the reinforcing block 3, which is disposed within the handle body 2. In one embodiment, the reinforcing block 3 is made of hard metal or its alloy, preferably of medium carbon steel such as known 45# steel, to further enhance the torsional strength of the multi-functional wrench 1000.

[0043] Figure 4 An exploded perspective view of a portion of a multi-functional wrench 1000 according to an embodiment of the present invention is shown, wherein the reinforcing block 3 is shown assembled to the drive rod body 1, and the metal end cap 4 has not yet been assembled together. Figure 5 A perspective view of the reinforcing block 3 of a multi-functional wrench 1000 according to one embodiment of the present invention is shown from another angle. In one embodiment, such as Figure 5 As shown, the reinforcing block 3 can be configured as a single piece, with a recessed, preferably L-shaped, groove 33 formed on one side for receiving the drive rod body 1, wherein the bent portion 13 of the drive rod body 1 is received in the L-shaped groove 33. In one embodiment, the L-shaped groove 33 is recessed to a degree exceeding half the thickness of the reinforcing block 3. In one embodiment, the depth of the L-shaped groove 33 is greater than the maximum outer diameter of the drive rod body 1. In one embodiment, as... Figure 5 As shown, the reinforcing block 3 includes positioning elements 31, such as pins, for determining the position of the reinforcing block 3 during overmolding of the handle body 2. Preferably, three positioning elements 31 are provided on each side of the reinforcing block 3 to ensure that the reinforcing block 3 is in the proper position during overmolding. In an alternative embodiment, the reinforcing block 3 includes two halves, each half including a semi-channel for receiving the drive rod body 1, the two halves being secured together by fasteners (e.g., screws). In one embodiment, the reinforcing block 3 includes two pieces that can be disassembled to allow the drive rod body 1 to be mounted thereon, and they can be securely connected together to keep the reinforcing block 3 fixed relative to the drive rod body 1.

[0044] In one embodiment, the reinforcing block 3 further includes a protrusion 32 extending in the longitudinal direction. In one embodiment, such as Figure 4 As shown, the protrusion 32 extends rearward from the body of the reinforcing block 3 to receive the metal end cap 4, as will be described later. In one embodiment, after the reinforcing block 3 is assembled onto the drive rod body 1 and the metal end cap 4 is attached to the protrusion 32 of the reinforcing block 3, they are placed in a mold, and the molded handle body 2 is overlaid thereon to stably secure the drive rod body 1, the reinforcing block 3, and the metal end cap 4 to the handle body 2.

[0045] In one embodiment, the multi-function wrench 1000 optionally includes a handle housing 5 configured to cover the handle body 2, thereby increasing the gripping area of ​​the handle and optionally forming a more convenient grip shape to further increase user comfort. In one embodiment, the outer surface of the handle body 2 is provided with protrusions and recesses 23 to increase friction between the handle body 2 and the handle housing 5. In one embodiment, the handle housing 5 is provided with an indicator 51 to indicate the type of the wrench 1000 to the user. For example, as... Figure 1 As shown, the indicator 51 prompts the user that the end of the drive lever body of the wrench is a No. 2 hexagon, indicating that the multi-function wrench 1000 is a 2mm hexagonal wrench. In one embodiment, the handle housing 5 optionally includes a housing body 54, an upper housing cover 52, and a lower housing cover 53, the upper housing cover 54 being disposed on the top surface of the housing body 54, and the lower housing cover 53 being disposed on the lower part of the housing body 54. In one embodiment, the housing body 54, the upper housing cover 52, and the lower housing cover 53 are formed by co-molding and / or separately molding three different materials. In one embodiment, the outer surface of the handle housing 5 is textured to increase friction when the user grips the multi-function wrench 1000.

[0046] Figure 6A longitudinal cross-sectional view of the handle body 2 of a multi-functional wrench 1000 according to one embodiment of the present invention is shown. In one embodiment, the interior of the handle body 2 is formed in a shape complementary to the drive rod body 1, the reinforcing block 3, and the metal end cap 4. Thus, after overmolding the handle body 2, the drive rod body 1, the reinforcing block 3, and the metal end cap 4 are integrally formed with the handle body 2. In another embodiment, the handle body 2 is overmolded only onto the drive rod body 1 and the reinforcing block 3, and the handle body 2 is molded to include a blind hole 21. The metal end cap 4 is manufactured separately and configured to be inserted into the blind hole 21. In one embodiment, a shoulder 22 is provided in the blind hole 21 to prevent the metal end cap 4 from sliding out along the longitudinal direction X after it is inserted into the blind hole 21, as will be described below.

[0047] Figure 7 A perspective view of the metal end cap 4 of a multi-functional wrench 1000 according to an embodiment of the present invention is shown. The metal end cap 4 includes a longitudinally extending plug portion 41 and a cover portion 42. The cover portion 42 is generally circular to close the blind hole 21 when the metal end cap 4 is inserted into the blind hole 21. Additionally, when the multi-functional wrench 1000 is used as a hammer for striking, the cover portion 42 serves as the hammer head; the cover portion 42 has a large surface area, providing an area for striking, thereby reducing the risk of accidental striking and ensuring user safety. Because the metal end cap 4 is made of high-strength low-alloy steel, it can withstand repeated striking, significantly improving the durability of the multi-functional wrench 1000.

[0048] like Figure 7As shown, the plug portion 41 is provided with a collar groove 43, which is configured to receive the hole shoulder 22 to prevent the metal end cap 4 from slipping or falling out of the handle body 2 in the longitudinal direction X. In an embodiment where the handle body 2 is only overmolded onto the drive rod body 1 and the reinforcing block 3, the metal end cap 4 is configured to be inserted into the blind hole 21, and the collar groove 43 is configured to receive the hole shoulder 22 when the metal end cap 4 is inserted into the blind hole 21 to prevent the metal end cap 4 from slipping out in the longitudinal direction X. In one embodiment, the cap portion 42 is magnetic to facilitate the attraction of parts such as screws or bolts. In one embodiment, the plug portion 41 is formed as a collar with a hollow interior 44, and the protrusion 32 of the reinforcing block 3 is configured to be inserted into the hollow interior 44 of the collar. In another embodiment, the hollow interior 44 may be provided with internal threads, and the protrusion 32 may be provided with external threads. The reinforcing block 3 can be connected to the metal end cap 4 by means of the threaded engagement of the protrusion 32 and the hollow interior 44. In one embodiment, the length of the protrusion 32 is less than or equal to the length of the hollow interior 44 of the collar, so that the free end of the metal end cap 4 abuts against the reinforcing block. That is, the metal end cap 4 can be abutted against the reinforcing block 3, and can withstand a large impact force when struck. In one embodiment, such as Figure 7 As shown, the plug portion 41 forms an outwardly flared horn portion 45 at its open end. The horn portion 45 helps to more easily center the protrusion 32 into the hollow interior 44, thereby facilitating the insertion of the metal end cap 4 onto the protrusion 32 of the reinforcing block 3. In one embodiment, the metal end cap 4 and the reinforcing block 3 can be formed as a single unit.

[0049] In this utility model, the multi-functional wrench 1000 includes a metal end cap 4 disposed at one end of the handle body 2. The multi-functional wrench can also be used as a hammer to strike the fastener or its other end to loosen it when the fastener is difficult to loosen, thereby making it easy to loosen the fastener for disassembly.

[0050] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

[0051] For those skilled in the art, this invention is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the above embodiments should be considered exemplary and not restrictive.

Claims

1. A multi-functional wrench, characterized in that, The multi-functional wrench includes: The drive rod body is roughly L-shaped, and includes a first drive rod section, a second drive rod section, and a curved section connecting the first drive rod section and the second drive rod section. A handle body extending in a longitudinal direction, the handle body being fixed to the drive rod body at the curved section, wherein the first drive rod section extends from the handle body in the longitudinal direction; A metal end cap, wherein the metal end cap is disposed on one end of the handle body opposite to the first drive rod segment along the longitudinal direction, and A reinforcing block that connects the metal end cap and the drive rod body.

2. The multi-functional wrench according to claim 1, wherein, The reinforcing block includes a recessed groove from one side, the groove being configured to receive the drive rod body.

3. The multi-functional wrench according to claim 1 or 2, wherein, The handle body is provided with a blind hole and a shoulder in the blind hole. The metal end cap includes a longitudinally extending plug portion and a collar groove, which is configured to receive the shoulder when the metal end cap is located in the blind hole.

4. The multi-functional wrench according to claim 1 or 2, wherein, The drive rod body extends through the reinforcing block, and the curved section is located inside the reinforcing block.

5. The multi-functional wrench according to claim 1, wherein, The reinforcing block comprises two halves, each half including a semi-channel for receiving the drive rod body, the two halves being fastened together by fasteners.

6. The multi-functional wrench according to claim 1 or 2, wherein, The reinforcing block includes a protrusion extending in a longitudinal direction, the protrusion being configured to connect to the metal end cap.

7. The multi-functional wrench according to claim 6, wherein, The metal end cap includes a longitudinally extending plug portion, the plug portion being formed to have a hollow interior, into which the protrusion can be inserted.

8. The multi-functional wrench according to claim 7, wherein, The length of the protrusion is less than or equal to the length of the hollow interior of the plug portion.

9. The multi-functional wrench according to claim 1 or 2, wherein, The end of the drive rod body is in the shape of a regular hexagon, an inner hexagonal sleeve, or a hexagonal star.

10. The multi-functional wrench according to claim 1 or 2, wherein, The end of the drive rod body and / or the metal end cap are magnetic.

11. The multi-functional wrench according to claim 1 or 2, wherein, The strength of the metal end cap is greater than or equal to the strength of the reinforcing block.

12. The multi-functional wrench according to claim 1 or 2, wherein, The metal end cap and the reinforcing block are integrated.

13. The multi-functional wrench according to claim 2, wherein, The groove is an L-shaped groove.

14. The multi-functional wrench according to claim 2, wherein, The depth of the groove is greater than the maximum outer diameter of the drive rod body.

15. The multi-functional wrench according to claim 5, wherein, The handle body is overmolded onto the reinforcing block and the drive rod body.

16. The multi-functional wrench according to claim 7, wherein, The plug portion forms an outwardly flared horn-shaped portion at the open end.

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