Wrench

Abstract

The utility model belongs to the technical field of aircraft manufacturing, and discloses a wrench which comprises an operation portion, a holding portion and a transition portion, and the operation portion is provided with an operation hole used for containing a nut. The holding part is connected with the operating part, and the operating hole faces the holding part; two ends of the transition part are respectively connected with the operation part and the holding part. Thus, the operation part can enter the narrow area, the nut is clamped into the operation hole, the operation part and the nut located in the operation hole can be driven to rotate by rotating the holding part, and therefore installation of the nut in the narrow installation area is achieved, and the installation quality of the nut and the reliability of the wrench are improved; and the position of the operating part in the mounting area can be judged by judging the position of the holding part, so that the operating part can be quickly positioned with the nut, and the dismounting difficulty of the nut is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft manufacturing, in particular to a wrench. Background Art

[0002] An airplane is a vehicle that can fly through the air using power. During the manufacturing and assembly process of an airplane, fasteners are often required to fix the structure.

[0003] Due to the complex structure of the aircraft, there are many narrow installation areas during the installation of fasteners, which makes it impossible for conventional tools to reach the installation area and install the fasteners. When installing nuts under the long stringer flange, due to the obstruction of the long stringer flange and the aircraft skin, the installation area is located inside the flange, so that the nut is located in a semi-enclosed area. It is difficult to achieve normal installation of the nut with commonly used straight handle and curved handle wrenches. The operator needs to use needle-nose pliers to clamp the nut and rotate it gradually to install it. Not only is the operation time-consuming and laborious, but the needle-nose pliers can easily slip and damage the structure around the nut, reducing the installation quality and reliability of the nut. Utility Model Content

[0004] The purpose of the utility model is to provide a wrench to solve the problems of low installation quality, low reliability, and time-consuming and labor-intensive installation of fasteners in a narrow installation area.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A wrench comprises: an operating portion, the operating portion being provided with an operating hole for accommodating a nut; a gripping portion connected to the operating portion, the operating hole being arranged toward the gripping portion; and a transition portion, the two ends of the transition portion being respectively connected to the operating portion and the gripping portion.

[0007] Preferably, the extending direction of the operating portion is parallel to the extending direction of the gripping portion.

[0008] Preferably, the thickness of the operating portion is greater than the thickness of the nut.

[0009] Preferably, the extension directions of the two ends of the transition portion are set at an angle, and the transition portion extends smoothly.

[0010] Preferably, the transition portion includes a first portion and a second portion, the extension direction of the first portion is perpendicular to the extension direction of the operating portion, one end of the second portion is connected to the first portion, and the other end is connected to an end of the holding portion facing the operating portion, and the extension direction of the end of the second portion facing away from the first portion is parallel to the extension direction of the holding portion.

[0011] Preferably, the operating portion includes a first surface and a second surface arranged opposite to each other, for limiting the opposite sides of the nut.

[0012] Preferably, the operating portion further includes a third surface, which is disposed between the first surface and the second surface, with two ends of the third surface respectively connected to the first surface and the second surface, and the third surface extends in a direction perpendicular to the first surface.

[0013] Preferably, the connections between the third surface and the first surface and the second surface extend smoothly.

[0014] Preferably, the length of the operating portion is smaller than the length of the gripping portion.

[0015] Preferably, the wrench further comprises a protective sleeve, which is sleeved on the grip portion.

[0016] Beneficial effects of the utility model:

[0017] A wrench comprises an operating portion, a gripping portion and a transition portion, wherein the operating portion is provided with an operating hole for accommodating a nut; the gripping portion is connected to the operating portion, and the operating hole is arranged toward the gripping portion; and both ends of the transition portion are respectively connected to the operating portion and the gripping portion.

[0018] In this way, since the operating part is small in size, it can enter the narrow installation area and make the nut stuck in the operating hole. By rotating the gripping part, the operating part and the nut located in the operating hole can be driven to rotate, thereby realizing the disassembly and assembly of the nut in the narrow and semi-enclosed area, improving the installation quality of the nut and the reliability of the wrench. In addition, the operating hole is arranged toward the gripping part, which can be convenient for the staff to operate externally. By judging the position of the gripping part, the position of the operating part in the installation area can be judged without observing the operating part, which makes it easy to move the operating part to the position corresponding to the nut, reducing the difficulty of disassembly and assembly of the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a wrench in one embodiment of the present utility model;

[0020] Figure 2 It is a top view of a wrench in one embodiment of the utility model;

[0021] Figure 3 It is a side view of a wrench in one embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Operation part; 11. Operation hole; 12. First surface; 13. Second surface; 14. Third surface; 2. Grip part; 3. Transition part; 31. First part; 32. Second part. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0025] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0027] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0028] See Figures 1 to 3 The utility model provides a wrench, including an operating part 1, a gripping part 2 and a transition part 3. The operating part 1 is provided with an operating hole 11 for accommodating a nut; the gripping part 2 is connected to the operating part 1, and the operating hole 11 is arranged toward the gripping part 2; the two ends of the transition part 3 are respectively connected to the operating part 1 and the gripping part 2.

[0029] In this embodiment, the operating portion 1, the gripping portion 2 and the transition portion 3 are integrally formed, and the operating hole 11 is a through hole that passes through the top and bottom surfaces of the operating portion 1, and the cross-sectional area of ​​the operating hole 11 is slightly larger than the cross-sectional area of ​​the nut, so that the nut can be easily inserted into the operating hole 11, and it can be ensured that when the operating portion 1 is rotated, the opposite side surfaces of the nut can abut against the inner wall of the operating hole 11, so as to achieve smooth disassembly and assembly of the nut.

[0030] In this way, the smaller operating part 1 can enter the narrow installation area and make the nut stuck in the operating hole 11. By holding and rotating the holding part 2, the operating part 1 and the nut located in the operating hole 11 can be driven to rotate, thereby realizing the installation of the nut in a narrow and semi-enclosed area. The operating hole 11 is set toward the holding part 2, which can facilitate external operation by the staff, and the position of the operating part 1 in the installation area can be judged by judging the position of the holding part 2, so that the operating part 1 can be moved to the position corresponding to the nut.

[0031] It is understandable that the operating hole 11 can also be set opposite to the grip part 2 or at an angle. In this embodiment, the operating hole 11 is set toward the grip part 2 to facilitate the staff to judge the position of the operating part 1 without observing a small area and to facilitate the rotation of the operating part 1.

[0032] See Figure 1 In some embodiments, the extension direction of the operating portion 1 is parallel to the extension direction of the grip portion 2. In this embodiment, the axis of the operating hole 11 is perpendicular to the extension direction of the operating portion 1. When the nut is set in the operating hole 11, the nut and the operating hole 11 are coaxially arranged.

[0033] In this way, the nut can fit tightly with the operating part 1, so that when the staff rotates the grip part 2, the force can be stably and evenly applied to the surface where the nut and the operating hole 11 abut, thereby improving the efficiency of nut disassembly and assembly and the installation quality of the nut, reducing the difficulty of nut disassembly and assembly, and facilitating the control of the operating part 1 in a narrow area by rotating or moving the grip part 2.

[0034] It can be understood that the extension direction of the operating part 1 and the extension direction of the grip part 2 can also be set at an acute angle or an obtuse angle. The angle formed by the extension direction of the operating part 1 and the extension direction of the grip part 2 can be flexibly adjusted according to actual needs. No more examples are given here. In this embodiment, the extension direction of the operating part 1 is parallel to the extension direction of the grip part 2. The purpose is to make it easier for the staff to rotate the grip part 2.

[0035] See Figure 1 In some embodiments, the thickness of the operating portion 1 is greater than the thickness of the nut, that is, the thickness of the operating hole 11 is greater than the thickness of the nut.

[0036] In this way, by increasing the thickness of the operating part 1, the structural strength of the operating part 1 can be enhanced, making it less likely to be deformed or damaged when subjected to torsional force, improving the reliability and safety of the wrench, and allowing nuts located in a narrow installation area to have higher installation quality.

[0037] It is understandable that the thickness of the operating portion 1 may be equal to or less than the thickness of the nut, as long as the nut is at least partially located in the operating hole 11 and can be screwed by the operating portion 1 . Detailed examples are omitted here.

[0038] See Figure 1 In some embodiments, the transition portion 3 extends in an angled manner at both ends, and the transition portion 3 extends smoothly. In this embodiment, the direction in which the end of the transition portion 3 facing the operating portion 1 extends is perpendicular to the direction in which the operating portion 1 extends, and the direction in which the end of the transition portion 3 facing the grip portion 2 extends is parallel to the direction in which the grip portion 2 extends. The bend of the transition portion 3 is formed into an arc.

[0039] In this way, by bending the transition portion 3, the operating portion 1 can be easily extended into a narrow installation area, reducing interference with the long stringer and the skin, improving the reliability of the wrench and the quality of nut installation in a narrow installation area, and when the staff rotates the grip portion 2, the transition portion 3 can disperse part of the torsional force, making the rotation of the wrench more stable and improving the efficiency of nut disassembly and assembly.

[0040] It is understandable that the bending portion of the transition portion 3 can also be set at a right angle, and the shape and bending position of the transition portion 3 can be flexibly adjusted according to actual needs, which will not be listed in detail here.

[0041] See Figure 1 In some embodiments, the transition portion 3 includes a first portion 31 and a second portion 32. The first portion 31 extends perpendicularly to the operating portion 1. One end of the second portion 32 is connected to the first portion 31, and the other end is connected to the end of the grip portion 2 facing the operating portion 1. The end of the second portion 32 facing away from the first portion 31 extends parallel to the extending direction of the grip portion 2. In this embodiment, the first portion 31 and the second portion 32 are integrally formed.

[0042] In this way, by providing the first part 31 and the second part 32, the gripping part 2 can be easily put into a narrow installation area. When rotating, the first part 31 and the second part 32 are not likely to interfere with the flange of the long stringer, thereby improving the efficiency of disassembly and assembly of nuts in a narrow installation area and improving the reliability of the wrench.

[0043] It can be understood that the length of the first part 31 can be flexibly adjusted according to the thickness of the long stringer flange and other dimensions, and the first part 31 and the second part 32 can also be detachably arranged to adapt to installation areas of different specifications. In this embodiment, there are no excessive restrictions on this, and it is sufficient to enable the gripping part 2 to enter the narrow installation area. In this embodiment, the first part 31 and the second part 32 are integrally formed, which can enhance the structural strength of the transition part 3.

[0044] See Figure 1 In some embodiments, the operating portion 1 includes a first surface 12 and a second surface 13 disposed opposite each other, which are used to limit the position of the nut on opposite sides. In this embodiment, the cross-sectional areas of the first surface 12 and the second surface 13 are equal, and the distance between the first surface 12 and the second surface 13 is slightly greater than the distance between the opposite sides of the nut. In other words, the cross-sectional area of ​​the operating hole 11 is greater than the cross-sectional area of ​​the nut; and the distance between the first surface 12 and the second surface 13 is greater than the width of the grip portion 2.

[0045] In this way, there is a certain amount of space between the operating hole 11 and the nut, which makes it easy to insert the nut into the operating hole 11 and rotate the nut stably, thereby improving the reliability of the wrench and the installation quality of the nut in a narrow installation area, making the disassembly and assembly of the nut more time-saving and labor-saving.

[0046] See Figure 1 In some embodiments, the operating portion 1 further includes a third surface 14 , which is disposed between the first surface 12 and the second surface 13 . Both ends of the third surface 14 are connected to the first surface 12 and the second surface 13 , respectively, and the third surface 14 extends in a direction perpendicular to the first surface 12 .

[0047] The extension direction of the third surface 14 is perpendicular to the extension direction of the operating portion 1 , and the third surface 14 is arranged on the side of the first surface 12 and the second surface 13 away from the grip portion 2 . The first surface 12 , the second surface 13 , and the third surface 14 together form the operating hole 11 .

[0048] It can be understood that the third surface 14 can also be a folded surface that matches the side wall of the nut, that is, the space enclosed by the first surface 12, the second surface 13 and the third surface 14 is similar to the shape of the nut. In this embodiment, the third surface 14 is a plane, which is to reduce the difficulty of the nut being inserted into the operating hole 11, so that the opposite sides of the nut can be quickly moved to the positions corresponding to the first surface 12 and the second surface 13, and when the operating part 1 is rotated, the first surface 12 and the second surface 13 are in contact with the nut to realize the rotation of the nut; the shape of the third surface 14 can be flexibly adjusted according to actual needs, and no more examples are given here.

[0049] See Figure 1 In some embodiments, the connections between the third surface 14 and the first surface 12 and the second surface 13 extend smoothly.

[0050] In this way, when the nut is inserted into the operating hole 11, it is not easy to be damaged by colliding with the inner wall of the operating hole 11, thereby improving the installation quality of the nut set in a narrow area, and facilitating the rapid positioning of the grip 2 and the nut, thereby improving the reliability and disassembly efficiency of the wrench.

[0051] It is understandable that the connection between the third surface 14 and the first surface 12 and the second surface 13 can also be set at an angle so that the nut can be smoothly inserted into the operating hole 11, which will not be elaborated here.

[0052] See Figure 1 In some embodiments, the length of the operating portion 1 is shorter than the length of the grip portion 2. The length of the grip portion 2 is greater than the width of the narrow installation area, so that the end of the grip portion 2 facing away from the operating portion 1 is located outside the long stringer flange.

[0053] In this way, the longer length of the grip part 2 can make it easier for the staff to grip and rotate the grip part 2, making the disassembly and assembly of the nut more time-saving and labor-saving. The shorter length of the grip part 2 can avoid the grip part 2 from interfering with other structures in a narrow installation area, thereby avoiding the grip part 2 from being difficult to engage with the nut or causing damage to other structures, thereby improving the reliability of the wrench and the installation quality of the nut.

[0054] It is understandable that the length of the gripping portion 2 can also be less than or equal to the length of the long stringer flange, so that the force applied to the gripping portion 2 can be stably transmitted to the operating portion 1, so that the operating portion 1 applies a stable torsional force to the nut. No further examples are given here.

[0055] See Figure 1 In some embodiments, the wrench further includes a protective sleeve (not shown in the figure), which is sleeved on the grip portion 2. In this embodiment, the protective sleeve is made of a soft material and covers the grip portion 2.

[0056] In this way, the protective cover can enhance the grip feel, facilitate the smooth movement and rotation of the grip part 2, so that the operating part 1 can stably rotate the nut, improve the installation quality and disassembly efficiency of the nut, and at the same time, the protective cover can also increase the friction between the human hand and the grip part 2, to prevent the grip part 2 from falling off the hand during rotation and causing injury to the person, thereby improving the safety of the wrench and improving the reliability of the wrench.

[0057] It is understandable that the material of the protective cover can be soft materials such as rubber and sponge. The material of the protective cover can be flexibly adjusted according to actual needs, and this embodiment does not limit this.

[0058] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A wrench, characterized in that: include: An operating portion (1), wherein the operating portion (1) is provided with an operating hole (11) for accommodating a nut; A gripping portion (2), the gripping portion (2) being connected to the operating portion (1), and the operating hole (11) being arranged toward the gripping portion (2); A transition portion (3), wherein both ends of the transition portion (3) are respectively connected to the operating portion (1) and the gripping portion (2); The operating portion (1) comprises a first surface (12) and a second surface (13) arranged opposite to each other, and is used to limit the positions of two opposite sides of the nut; The operating portion (1) further comprises a third surface (14), the third surface (14) being arranged between the first surface (12) and the second surface (13), the two ends of the third surface (14) being connected to the first surface (12) and the second surface (13) respectively, and the third surface (14) extending in a direction perpendicular to the first surface (12).

2. The wrench according to claim 1, characterized in that The extending direction of the operating portion (1) is parallel to the extending direction of the holding portion (2).

3. The wrench according to claim 1, characterized in that The thickness of the operating portion (1) is greater than the thickness of the nut.

4. The wrench according to claim 1, characterized in that The extension directions of the two ends of the transition portion (3) are arranged at an angle, and the transition portion (3) extends smoothly.

5. The wrench according to claim 4, characterized in that The transition portion (3) comprises a first portion (31) and a second portion (32), wherein the extension direction of the first portion (31) is perpendicular to the extension direction of the operating portion (1), one end of the second portion (32) is connected to the first portion (31), and the other end is connected to an end of the gripping portion (2) facing the operating portion (1), and the extension direction of the end of the second portion (32) facing away from the first portion (31) is parallel to the extension direction of the gripping portion (2).

6. The wrench according to claim 1, characterized in that The connection points between the third surface (14), the first surface (12) and the second surface (13) all extend smoothly.

7. The wrench according to any one of claims 1 to 6, characterized in that: The length of the operating portion (1) is smaller than the length of the gripping portion (2).

8. The wrench according to any one of claims 1 to 6, characterized in that: The wrench further comprises a protective sleeve, which is sleeved on the gripping portion (2).

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