Wrench with adjustable length and direction
By designing wrench with adjustable length and direction, the problem of inefficiency of existing wrench due to model limitations is solved, and a wider range of application and higher working efficiency is achieved.
Patent Information
- Application Number
- CN202420620898.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-03-28
AI Technical Summary
Most of the existing wrenches are straight handles. Due to the space limitations of the working environment, different types of wrenches need to be replaced, resulting in low working efficiency.
A wrench with adjustable length and direction is designed to adjust the overall length of the wrench and the direction of the wrench head through the combination of the grip, adjustment rod, wrench head and locking member.
The wrench can be adjusted according to the working environment, meets different working conditions, has a wide range of applications, and improves operating efficiency.
Smart Images
Figure CN222680789U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical manufacturing and processing, and more specifically, to a spanner with adjustable length and direction. Background Art
[0002] Screws are the main fasteners in mechanical equipment. As a tool for removing bolts and nuts, wrenches play an important role in the processing, production and maintenance of the machinery industry and are an indispensable tool. Most existing wrenches are straight handle wrenches. Due to the space limitations of the working environment, different types of wrenches need to be replaced. Multiple tools are required during operation, which leads to low work efficiency. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model innovatively provides a wrench with adjustable length and direction. The overall length of the wrench and the direction of the wrench head are adjustable and can be adjusted according to the working environment to meet different working conditions. It has a wide range of applications and improves working efficiency.
[0004] In order to achieve the above technical purpose, the utility model discloses a spanner with adjustable length and direction, comprising a handle, an adjusting rod, a spanner head and a locking piece.
[0005] The handle, the adjusting rod and the wrench head are connected in sequence.
[0006] The end of the handle close to the adjusting rod is provided with a first lug, and the end of the wrench head close to the adjusting rod is fixed with a first U-shaped chuck.
[0007] The adjusting rod comprises one or more adjusting sections, wherein the adjusting section comprises a second U-shaped chuck and a second lug fixed to the closed end of the second U-shaped chuck, and the adjusting sections are connected through the second U-shaped chuck and the second lug, the second U-shaped chuck of the preceding adjusting section is clamped on the second lug of the following adjusting section and rotates around the second lug, the second U-shaped chuck of the adjusting section at the rear end of the adjusting rod is clamped on the first lug and rotates around the first lug, and the first U-shaped chuck is clamped on the second lug of the adjusting section at the front end of the adjusting rod and rotates around the second lug,
[0008] The locking member locks the first U-shaped clamp and the second U-shaped clamp from rotating.
[0009] Furthermore, the locking member includes a bolt and a nut, the first lug and the second lug are both provided with threaded holes matching the bolt, the first U-shaped clamp and the second U-shaped clamp are both provided with through holes for the screw rod of the bolt to pass through, the first U-shaped clamp and the second U-shaped clamp rotate around the screw rod of the bolt and are locked from rotating by clamping the nut connected to the bolt with the nut of the bolt.
[0010] Furthermore, the maximum rotation angle of the first U-shaped clamp and the second U-shaped clamp is 180°, and the first U-shaped clamp and the second U-shaped clamp can be rotated 90° to both sides of the connection between the first U-shaped clamp and the lug.
[0011] The end surface area of the handle provided with the first lug is larger than the end area of the first lug, and the side surface of the second U-shaped chuck connected to the first lug abuts against the end surface after the second U-shaped chuck is rotated to the maximum angle, limiting the maximum angle of rotation; the end surface area of the closed end of the second U-shaped chuck is larger than the end area of the second lug, and the side surface of the first U-shaped chuck or the second U-shaped chuck connected to the second lug abuts against the end surface after the second U-shaped chuck is rotated to the maximum angle, limiting the maximum angle of rotation.
[0012] Furthermore, the end surface of the handle provided with the first lug is a plane perpendicular to the axial direction of the handle, and the end surface of the closed end of the second U-shaped chuck is a plane perpendicular to the length direction of the second U-shaped chuck.
[0013] Furthermore, the handle, the adjusting rod and the wrench head form a straight line, an L shape or a Z shape.
[0014] Furthermore, the first U-shaped chuck is detachably connected to the wrench head.
[0015] Furthermore, the wrench head is an open-end wrench head or a box wrench head.
[0016] The beneficial effects of the utility model are:
[0017] The utility model discloses a wrench with adjustable length and direction, wherein the overall length of the wrench and the direction of the wrench head are adjustable, and can be adjusted according to the working environment to meet different working conditions, has a wide application range, and improves working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of a wrench with adjustable length and direction according to an embodiment of the utility model.
[0019] Figure 2 It is a structural schematic diagram of a handle according to an embodiment of the utility model.
[0020] Figure 3 It is a structural schematic diagram of a first U-shaped chuck according to an embodiment of the utility model.
[0021] Figure 4 It is a structural schematic diagram of the regulating section of an embodiment of the utility model.
[0022] Figure 5 The utility model is a schematic structural diagram of a wrench with adjustable length and direction in an embodiment of the utility model, which is changed into an L-shape.
[0023] Figure 6 The utility model is a schematic structural diagram of a wrench with adjustable length and direction in an embodiment of the utility model, which is changed into a Z-shape.
[0024] In the figure,
[0025] 1. Handle; 11. First lug; 2. Adjustment rod; 21. Adjustment section; 211. Second U-shaped chuck; 212. Second lug; 3. First U-shaped chuck; 31. Connecting block; 4. Locking piece. DETAILED DESCRIPTION
[0026] The length and direction adjustable spanner provided by the utility model is explained and illustrated in detail below in conjunction with the drawings of the specification.
[0027] This embodiment specifically discloses a wrench with adjustable length and direction, such as Figure 1 As shown, it includes a handle 1, an adjusting rod 2, a wrench head and a locking member 4. The handle 1, the adjusting rod 2 and the wrench head (not shown in the figure) are connected in sequence. Figure 2 As shown, a first lug 11 is provided on the end of the handle 1 close to the adjusting rod 2. The handle 1 is preferably square, which is convenient for holding and applying force, and saves effort during operation; a first U-shaped chuck 3 is fixed to the end of the wrench head close to the adjusting rod 2. In this embodiment, the closed end of the first U-shaped chuck 3 is fixedly connected to the wrench head, and the open end of the first U-shaped chuck 3 is used to connect with the adjusting rod 2. Optionally, the first U-shaped chuck 3 is detachably connected to the wrench head, and the model of the wrench head can be replaced. Preferably, the wrench head is an open-end wrench head or a plum wrench head, and a suitable wrench head can be selected according to the specific operation conditions.
[0028] Specifically, Figure 3 As shown, a connection block 31 is fixed to the closed end of the first U-shaped chuck 3, a connection hole is provided on the connection block 31, and a corresponding connection hole is also provided on the wrench head. The first U-shaped chuck 3 and the wrench head can be fixedly connected by a bolt passing through the connection hole on the connection block and the connection hole on the wrench head and a nut connected to the bolt. The end of the connection block 31 and the wrench head is clamped between the nut and the nut of the bolt to achieve a fixed connection. Alternatively, the connection holes are all threaded holes, and the fixed connection is achieved by screws threaded in the threaded holes.
[0029] like Figure 1 and 4As shown, the adjusting rod 2 includes one or more adjusting sections 21, and the adjusting section 21 includes a second U-shaped chuck 211 and a second lug 212 fixed to the closed end of the second U-shaped chuck 211. The adjusting sections 21 are connected by the second U-shaped chuck 211 and the second lug 212. The second U-shaped chuck 211 of the previous adjusting section 21 is clamped on the second lug 212 of the next adjusting section 21 and rotates around the second lug 212. The second U-shaped chuck 211 of the adjusting section 21 at the rear end of the adjusting rod 2 is clamped on the first lug 11 and rotates around the first lug 11. The first U-shaped chuck 3 is clamped on the second lug 212 of the adjusting section 21 at the front end of the adjusting rod 2 and rotates around the second lug 212. The wrench head rotates with the rotation of the first U-shaped chuck 3. According to the working environment, the number of adjusting sections 21 forming the adjusting rod 2 can be selected to adjust the length of the entire wrench. The adjusting section 21 and the handle 1, the adjusting sections 21 and the wrench head and the adjusting section 21 can rotate, and the rotation position and angle can be selected according to the working environment to adjust the direction of the wrench head to meet different working environments and be applicable to more working environments.
[0030] The locking member 4 locks the rotation of the first U-shaped clamp 3 and the second U-shaped clamp 211 , that is, locks the rotation of the adjustment section 21 and the wrench head, thereby determining the direction of the wrench head.
[0031] Optionally, the locking member 4 includes a bolt and a nut, and the first lug 11 and the second lug 212 are both provided with threaded holes matching the bolts, and the screw rod of the bolts is connected in the threaded holes, and the first lug 11 and the second lug 212 are both connected with bolts, and the bolt on the first lug 11 is perpendicular to the first lug 11, and the bolt on the second lug 212 is perpendicular to the second lug 212, and the first U-shaped clamp 3 and the second U-shaped clamp 211 are both provided with through holes for the screw rod of the bolt to pass through, and the through holes penetrate the U-shaped opening of the U-shaped clamp, and the first U-shaped clamp 3 and the second U-shaped clamp 211 rotate around the screw rod of the bolt and are locked from rotating by clamping the nut connected to the bolt with the nut of the bolt. The U-shaped chuck is clamped on the corresponding lug, and the lug is in the U-shaped opening of the U-shaped chuck. The bolt passes through the through hole on one side of the U-shaped chuck, the threaded hole on the lug and the through hole on the other side of the U-shaped chuck in sequence. The bolt is threadedly connected to the threaded hole of the lug. The U-shaped chuck can be rotated around the screw rod of the bolt to a suitable angle, and then a nut is connected to the screw rod of the bolt. The nut and the nut of the bolt are clamped on both sides of the U-shaped chuck. Since the bolt and the nut are fixed, the clamping effect of the bolt and the nut makes there is enough friction between the nut and the U-shaped chuck, and between the nut and the U-shaped chuck, so that the U-shaped chuck no longer rotates.
[0032] Preferably, the maximum rotation angle of the first U-shaped chuck 3 and the second U-shaped chuck 211 is 180°, that is, the rotation range of the first U-shaped chuck 3 and the second U-shaped chuck 211 is 180°, and the first U-shaped chuck 3 and the second U-shaped chuck 211 can rotate 90° on both sides of the connection between them and the lug. For example, if the threaded hole is set on the center line of the lug, then the first U-shaped chuck 3 and the second U-shaped chuck 211 can rotate 90° on both sides of the center line of the lug to which they are connected.
[0033] More preferably, the handle 1, the adjusting rod 2 and the wrench head form a straight line (such as Figure 1 As shown), L-type (as Figure 5 as shown) or Z-shaped (as shown Figure 6 That is, the adjusting section 21 and the first U-shaped chuck 3 are rotated 90° to one side, and the lug connected thereto is in the same straight line or at an angle of 90°, so that the opening surface or plum blossom surface of the wrench head is perpendicular or parallel to the handle 1, which is convenient for force application. Other angles, such as 30°, 45°, and 60° are also possible.
[0034] The end surface area of the handle 1 provided with the first lug 11 is larger than the end area of the first lug 11. After the second U-shaped clamp 211 connected to the first lug 11 is rotated to the maximum angle, the side surface abuts against the end surface to limit the maximum angle of rotation; the end surface area of the closed end of the second U-shaped clamp 211 is larger than the end area of the second lug 212. After the first U-shaped clamp 3 or the second U-shaped clamp 211 connected to the second lug 212 is rotated to the maximum angle, the side surface abuts against the end surface to limit the maximum angle of rotation, making the angle adjustment more convenient and quick.
[0035] Further, the end face of the handle 1 provided with the first lug 11 is a plane perpendicular to the axial direction of the handle 1. When the second U-shaped chuck 211 rotates to 90° with the axis of the handle 1, its side faces abut against the planes on the left and right sides of the first lug 11 of the handle 1, and the second U-shaped chuck 211 can no longer rotate. Preferably, the side faces of the second U-shaped chuck 211 are planes; the end face of the closed end of the second U-shaped chuck 211 is a plane perpendicular to the length direction of the second U-shaped chuck 211. When the first U-shaped chuck 3 or the second U-shaped chuck 211 rotates to 90° with the axis of the adjustment section 21 connected thereto, its side faces abut against the planes on the left and right sides of the second lug 212, and can no longer rotate. Preferably, the side faces of the first U-shaped chuck 3 are also planes. The end faces of the open ends of the first U-shaped chuck 3 and the second U-shaped chuck 211 are arc-shaped, which does not affect the rotation of the first U-shaped chuck 3 and the second U-shaped chuck 211.
[0036] When using the wrench of the present application, the number of adjusting sections 21 can be selected to adjust the length of the adjusting rod 2, thereby adjusting the overall length of the wrench; the first U-shaped chuck 3 and one or more adjusting sections 21 can also be rotated to adjust the direction of the wrench head. Usually, the first U-shaped chuck 3 is rotated to make it 90° with the adjusting rod 2, or one of the adjusting sections 21 is rotated to make it 90° with the connected adjusting section 21, so as to form a Figure 5 or rotating the first U-shaped chuck 3 and one of the adjustment sections 21 or two of the adjustment sections 21, so that the adjustment section 21 connected thereto is 90 °, forming Figure 6 The Z-shaped wrench shown in the figure is usually rotated by rotating the first U-shaped chuck 3 and the adjustment section 21 close to the first U-shaped chuck 3. Of course, the adjustment section 21 at other positions can also be adjusted according to the specific working environment. The adjustment method is simple and fast, and does not affect the use of the wrench, widens the adaptability of the wrench to the environment, and improves the working efficiency.
[0037] When using the wrench of the present application, an appropriate number of adjustment sections are selected for assembly according to the on-site operating space, and the first U-shaped clamp or adjustment rod is bent at a suitable position and connected and tightened with a locking piece, and the screws, bolts, and bolts are tightened or removed by holding the handle.
[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0040] In the description of this specification, the description with reference to the terms "this embodiment", "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any at least one embodiment or example. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement and simple improvement made to the essential content of the present invention shall be included in the protection scope of the present invention.
Claims
1. A wrench with adjustable length and direction, characterized in that: It comprises a handle (1), an adjusting rod (2), a wrench head and a locking piece (4). The handle (1), the adjusting rod (2) and the wrench head are connected in sequence. The end of the handle (1) close to the adjusting rod (2) is provided with a first lug (11), and the end of the wrench head close to the adjusting rod (2) is fixed with a first U-shaped chuck (3). The adjusting rod (2) comprises one or more adjusting sections (21), wherein the adjusting section (21) comprises a second U-shaped clamp (211) and a second lug (212) fixed to the closed end of the second U-shaped clamp (211); the adjusting sections (21) are connected via the second U-shaped clamp (211) and the second lug (212); the second U-shaped clamp (211) of the preceding adjusting section (21) is clamped on the second lug (212) of the succeeding adjusting section (21) and rotates around the second lug (212); the second U-shaped clamp (211) of the adjusting section (21) at the rear end of the adjusting rod (2) is clamped on the first lug (11) and rotates around the first lug (11); the first U-shaped clamp (3) is clamped on the second lug (212) of the adjusting section (21) at the front end of the adjusting rod (2) and rotates around the second lug (212); The locking member (4) locks the rotation of the first U-shaped clamp (3) and the second U-shaped clamp (211).
2. The length and direction adjustable wrench according to claim 1, characterized in that: The locking member (4) comprises a bolt and a nut, the first lug (11) and the second lug (212) are both provided with threaded holes matching the bolt, the first U-shaped clamp (3) and the second U-shaped clamp (211) are both provided with through holes for the screw rod of the bolt to pass through, the first U-shaped clamp (3) and the second U-shaped clamp (211) rotate around the screw rod of the bolt and are locked from rotating by clamping the nut connected to the bolt with the nut of the bolt.
3. The length and direction adjustable wrench according to claim 1, characterized in that: The maximum rotation angle of the first U-shaped clamp (3) and the second U-shaped clamp (211) is 180°, and the first U-shaped clamp (3) and the second U-shaped clamp (211) can rotate 90° on both sides of the connection between them and the lug.
4. The length and direction adjustable wrench according to claim 1 or 3, characterized in that: The end surface area of the handle (1) provided with the first lug (11) is larger than the end area of the first lug (11); after the second U-shaped chuck (211) connected to the first lug (11) rotates to a maximum angle, the side surface abuts against the end surface to limit the maximum angle of rotation; the end surface area of the closed end of the second U-shaped chuck (211) is larger than the end area of the second lug (212); after the first U-shaped chuck (3) or the second U-shaped chuck (211) connected to the second lug (212) rotates to a maximum angle, the side surface abuts against the end surface to limit the maximum angle of rotation.
5. The length and direction adjustable wrench according to claim 4, characterized in that: The end surface of the handle (1) provided with the first lug (11) is a plane perpendicular to the axial direction of the handle (1), and the end surface of the closed end of the second U-shaped chuck (211) is a plane perpendicular to the length direction of the second U-shaped chuck (211).
6. The length and direction adjustable wrench according to claim 1 or 3, characterized in that: The handle (1), the adjusting rod (2) and the wrench head form a straight line, an L shape or a Z shape.
7. The length and direction adjustable wrench according to claim 1, characterized in that: The first U-shaped chuck (3) is detachably connected to the wrench head.
8. The length and direction adjustable wrench according to claim 1 or 7, characterized in that: The wrench head is an open-end wrench head or a plum wrench head.