Multifunctional flexible adjusting wrench and using method

Abstract

The invention belongs to the technical field of fire-extinguishing aircraft assembly, and discloses a multifunctional flexible adjusting wrench and a using method, the multifunctional flexible adjusting wrench comprises a body, an adjusting rod and a connecting rod, an anti-skid groove is formed in one side of the front clamping head; the ratchet wheel and the front clamping head are arranged on the two sides of the mounting part respectively, are fixedly connected through a connecting shaft and form a hinged structure with the mounting part; one end of the hasp is hinged to the connecting shaft, and the other end of the hasp is connected with a flexible winding tape; the adjusting mechanism comprises a pawl and a reset spring, the pawl is hinged to the mounting part, one end of the reset spring is fixed to the mounting part, and the other end of the reset spring is connected to the pawl. The wrench solves the problems that an existing wrench is large in size, the portion, making contact with a nut, of the existing wrench easily crushes a pipeline and the nut and abrades the paint face of a product, and the wrench is not only suitable for disassembling and assembling of aircraft overflow pipelines, but also can be widely applied to disassembling and assembling of nuts and large bolts in other narrow spaces, such as disassembling and assembling of large pipelines in the manufacturing industry of ships, automobiles and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of fire-fighting aircraft assembly, and particularly relates to a multifunctional flexible adjustment wrench and a method for using the same. Background Art

[0002] Large nuts are installed at the joints of the trim duct, water injection pipe and overflow pipe on the aircraft, and due to factors such as the narrow construction space, special wrenches are required for installation.

[0003] The wrenches currently in use are large in size, and the contact areas with nuts can easily crush pipes and nuts, wear the paint surface of the product, and pose a safety hazard. Summary of the Invention

[0004] The purpose of the present invention is to provide a multifunctional flexible adjustment wrench and a method of use, which is used to solve the problems that existing wrenches are large in size and easily damage pipes and nuts at the contact points with nuts, thereby wearing out the paint surface of products. The present invention is not only suitable for the disassembly and assembly of aircraft overflow pipes, but can also be widely used for the disassembly and assembly of nuts and large bolts in other narrow spaces, such as the disassembly and assembly of large pipes in manufacturing industries such as ships and automobiles.

[0005] The technical solution of the present invention is achieved as follows: In a first aspect, the present invention provides a multifunctional flexible adjustment wrench, comprising: The main body has an annular mounting portion at its end; The front clamping head is provided with an anti-slip groove on one side; The ratchet and the front clamp are respectively arranged on both sides of the mounting portion, the two are fixedly connected by a connecting shaft, and form a hinge structure with the mounting portion; A buckle, one end of which is hinged to the connecting shaft and the other end of which is connected to a flexible belt; The regulating mechanism comprises a pawl and a return spring, wherein the pawl is hinged on the mounting portion, one end of the return spring is fixed on the mounting portion, and the other end is connected to the pawl.

[0006] As a further solution of the present invention: the main body has a handle, the mounting portion has a through hole, is annular as a whole, and its thickness is smaller than that of the handle.

[0007] As a further solution of the present invention: the front clamping head is designed to be claw-shaped, with a groove formed on one side thereof, and a plurality of clamping teeth are provided on both sides of the groove to form the anti-slip groove; The front clamp also has an annular assembly portion.

[0008] As a further solution of the present invention: the connecting shaft forms an interference fit with the front clamp and the ratchet, and the connecting shaft forms a clearance fit with the mounting portion.

[0009] As a further solution of the present invention: the buckle adopts a rectangular ring structure design, one end of which is connected to the connecting shaft to form a clearance fit.

[0010] As a further solution of the present invention: the flexible tape is crimped onto the buckle, and the flexible tape is made of elastic silicone material and has built-in fiber filaments.

[0011] As a further solution of the present invention: there are two adjusting mechanisms, which are respectively arranged on opposite sides of the ratchet.

[0012] As a further solution of the present invention: the pawl is connected to the mounting portion via a positioning pin, and the pawl and the positioning pin are in clearance fit; the return spring is fixedly connected to the mounting portion via a screw.

[0013] As a further solution of the present invention: a hanging hole is further provided on the handle.

[0014] In a second aspect, the present invention provides a method for using a multifunctional flexible adjustment wrench, comprising the following steps: Assemble the body, front clamp, ratchet, buckle, flexible belt and adjustment mechanism into a flexible adjustment wrench; Wrap the flexible tape around the bolt or pipe to be disassembled and clamp it between the flexible adjustment wrench and the bolt or pipe; Adjust the front clamp to the appropriate force application angle, tighten the flexible belt, and then rotate the handle to tighten or loosen the bolts or pipes to be disassembled.

[0015] The beneficial effects of this application are: 1. The flexible adjustment wrench of this application solves the problem of construction in narrow spaces through the design of a ratchet, and adopts a flexible tape design to solve the problem of installing bolts and nuts on conduits of different diameters.

[0016] 2. The positioning device and positioning method of the present application are not only suitable for the installation of aircraft trim ducts, water injection pipes and overflow pipes, but can also be widely used in other fields requiring pipeline installation, such as the installation of large pipe nuts in manufacturing industries such as ships and automobiles.

[0017] 3. The positioning device of the present application has a simple and clear structure, and the connection and fixing methods between the various components are simple and reliable, which facilitates subsequent maintenance and repair work.

[0018] 4. The flexible tape of this application is not easy to damage the paint surface of pipes and bolts.

[0019] 5. The front clamp of this application drives the ratchet shaft to be adjusted to any angle to meet the operational requirements of installation in narrow spaces.

[0020] 6. The flexible tape of the present application can adapt to different diameters of conduits and nuts, reducing the number of special wrenches required for a single flight on an aircraft.

[0021] The present application is described in further detail below with reference to the accompanying drawings of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the structure of the flexible adjustment wrench of this application; Figure 2 This is a schematic diagram of the flexible curling state when used in this application.

[0024] Among them: 1-front clamp; 2-handle; 3-flexible belt; 4-ratchet; 5-buckle; 6-connecting shaft; 7-pawl; 8-locating pin; 9-reset spring; 10-screw. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention.

[0026] In the drawings, the same or similar reference numerals throughout the drawings represent the same or similar elements or elements having the same or similar functions. The described embodiments are only some of the embodiments of the present invention, but not all of the embodiments.

[0027] The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0028] The following is combined with Figure 1-2 The embodiments of the present invention are described in detail.

[0029] Example 1 The present invention provides a multifunctional flexible adjustment wrench, which comprises: The main body has an annular mounting portion at its end; The front clamping head 1 is provided with an anti-slip groove on one side; The ratchet 4 and the front clamp 1 are respectively arranged on both sides of the mounting portion, and the two are fixedly connected by a connecting shaft 6 and form a hinge structure with the mounting portion; the ratchet 4 has a minimum adjustment angle of 5°; A buckle 5, one end of which is hinged to the connecting shaft 6 and the other end of which is connected to the flexible belt 3; The adjustment mechanism includes a pawl 7 and a return spring 9. The pawl 7 is hinged on the mounting portion. One end of the return spring 9 is fixed to the mounting portion, and the other end is connected to the pawl 7. The return spring 9 provides tension to the pawl 7. When the front chuck 1 drives the ratchet 4 to rotate synchronously, the pawl 7 is in the working position at any time and is stuck between the teeth of the ratchet 4, so that the ratchet 4 cannot rotate in the opposite direction when subjected to force.

[0030] The body, the front clamp 1, the ratchet 4, the buckle 5, the pawl 7 and the connecting shaft 6 are all rigid structural parts with high strength.

[0031] The front clamping head 1 and the ratchet 4 of the present application are a linkage structure. When in use, the principle of the ratchet 4 can be applied to adjust the position of the front clamping head 1 according to the operating space to meet the operating requirements of installation in a narrow space.

[0032] The body has a handle 2, and the mounting portion has a through hole, which is annular as a whole, and its thickness is less than the thickness of the handle 2. A hanging hole is also provided on the handle 2 to facilitate hanging the wrench.

[0033] The front chuck 1 is designed in a claw shape, with a groove formed on one side and a plurality of teeth disposed on either side of the groove, forming the anti-slip groove. When the free end of the flexible tape 3 is clamped between the front chuck 1 and the nut, the anti-slip groove provides friction, enabling the flexible adjustment wrench to operate effectively. The front chuck 1 also has an annular assembly portion that mates with the mounting portion.

[0034] The connecting shaft 6 forms an interference fit with both the front clamp 1 and the ratchet 4, so that the front clamp 1 and the ratchet 4 can be linked together. The connecting shaft 6 forms a clearance fit with the mounting portion to form a hinge.

[0035] The buckle 5 is designed with a rectangular ring structure, one end of which is connected to the connecting shaft 6 to form a clearance fit and form a hinge.

[0036] The flexible tape 3 is crimped onto the buckle 5. Made of elastic silicone and inlaid with fiber filaments, it offers a long service life. When installing or removing the overflow pipe, the flexible tape 3 is compressed, leveraging the nut to tighten or remove it. The flexible tape 3 accommodates pipes and nuts of varying diameters.

[0037] There are two adjusting mechanisms, which are respectively arranged on opposite sides of the ratchet 4.

[0038] The pawl 7 is connected to the mounting portion via a positioning pin 8 , and the pawl 7 is clearance-matched with the positioning pin 8 ; the return spring 9 is fixedly connected to the mounting portion via a screw 10 .

[0039] Wrap the flexible tape 3 around the bolt (or pipe) to be disassembled and clamp it between the flexible adjustment wrench and the bolt (or pipe), adjust the front clamp 1 to a suitable force application angle, tighten the flexible tape 3 and rotate the handle 2 to tighten (or loosen) the bolt (or pipe) to be disassembled.

[0040] The flexible adjustment wrench of the present application is not only suitable for the disassembly and assembly of aircraft overflow pipes, but can also be widely used for the disassembly and assembly of nuts and large bolts in other narrow spaces, such as the disassembly and assembly of large pipes in manufacturing industries such as ships and automobiles.

[0041] Example 2 The present invention provides a method for using a multifunctional flexible adjustment wrench, which comprises the following steps: Assemble the body, front clamp 1, ratchet 4, buckle 5, flexible belt 3 and adjustment mechanism into a flexible adjustment wrench; Wrap the flexible tape 3 around the bolt or pipe to be disassembled and clamp it between the flexible adjustment wrench and the bolt or pipe; Adjust the front clamp 1 to a suitable force application angle, tighten the flexible belt 3, and then rotate the handle 2 to tighten or loosen the bolt or pipe to be disassembled.

[0042] The front clamping head 1 drives the ratchet 4 to adjust to any angle, meeting the operational requirements of installation in narrow spaces.

[0043] The flexible tape 3 is not likely to damage the paint surface of the pipe and bolt, and can adapt to pipes and bolts of different diameters.

[0044] So far, the purpose of the present invention has been achieved.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multifunctional flexible adjustment wrench, characterized in that: include: The main body has an annular mounting portion at its end; The front clamping head is provided with an anti-slip groove on one side; The ratchet and the front clamp are respectively arranged on both sides of the mounting portion, the two are fixedly connected by a connecting shaft, and form a hinge structure with the mounting portion; A buckle, one end of which is hinged to the connecting shaft and the other end of which is connected to a flexible belt; The regulating mechanism comprises a pawl and a return spring, wherein the pawl is hinged on the mounting portion, one end of the return spring is fixed on the mounting portion, and the other end is connected to the pawl.

2. The multifunctional flexible adjustment wrench according to claim 1, characterized in that: The main body has a handle, and the mounting portion has a through hole. The mounting portion is annular as a whole, and its thickness is smaller than that of the handle.

3. The multifunctional flexible adjustment wrench according to claim 2, characterized in that: The front clamping head is designed to be claw-shaped, with a groove provided on one side thereof, and a plurality of clamping teeth provided on both sides of the groove to form the anti-slip groove; The front clamp also has an annular assembly portion.

4. The multifunctional flexible adjustment wrench according to claim 2 or 3, characterized in that: The connecting shaft forms an interference fit with the front clamp and the ratchet, and the connecting shaft forms a clearance fit with the mounting portion.

5. The multifunctional flexible adjustment wrench according to claim 4, characterized in that: The buckle adopts a rectangular ring structure design, one end of which is connected to the connecting shaft to form a clearance fit.

6. The multifunctional flexible adjustment wrench according to claim 5, characterized in that: The flexible coil is pressed onto the buckle, and the flexible coil is made of elastic silicone material and has fiber filaments built in.

7. The multifunctional flexible adjustment wrench according to claim 6, characterized in that: There are two adjusting mechanisms, which are respectively arranged on opposite sides of the ratchet.

8. The multifunctional flexible adjustment wrench according to claim 7, characterized in that: The pawl is connected to the mounting portion via a positioning pin, and the pawl is loosely fitted with the positioning pin; the return spring is fixedly connected to the mounting portion via a screw.

9. The multifunctional flexible adjustment wrench according to any one of claims 5 to 8, characterized in that: A hanging hole is also provided on the handle.

10. A method for using a multifunctional flexible adjustment wrench, characterized in that: The steps include: Assemble the body, front clamp, ratchet, buckle, flexible belt and adjustment mechanism into a flexible adjustment wrench; Wrap the flexible tape around the bolt or pipe to be disassembled and clamp it between the flexible adjustment wrench and the bolt or pipe; Adjust the front clamp to the appropriate force application angle, tighten the flexible belt, and then rotate the handle to tighten or loosen the bolts or pipes to be disassembled.

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