An adaptive wrench for diesel engines

Abstract

The application provides a self-adaptive wrench for diesel engine, which comprises a wrench head body provided with a containing cavity; a screwing component slidingly arranged in the containing cavity, one side of the screwing component being provided with an adapter; a reversing component rotationally connected with the wrench head body and the screwing component away from the adapter, configured to adjust the position of the screwing component in the containing cavity and switch the screwing direction of the screwing component; a first locking component and a second locking component arranged in the containing cavity and both slidingly connected with the wrench head body; the first locking component and the second locking component are arranged on opposite sides of the screwing component respectively, and the braking direction of the first locking component to the screwing component is opposite to the braking direction of the second locking component to the screwing component; by arranging the first locking component and the second locking component on the two sides of the screwing component, one of them has a larger contact area with the screwing component, thereby reducing the wear of the screwing component and ensuring the screwing effect.

Description

Technical Field

[0001] This application relates to the field of diesel engine disassembly and assembly tools, and more particularly to an adaptive wrench for diesel engines. Background Technology

[0002] A diesel engine is an engine that releases energy by burning diesel fuel. It mainly consists of a crankshaft and connecting rod mechanism, valve train, starting system, cooling system, fuel supply system, and lubrication system. It has the advantages of high output torque, high thermal efficiency, and strong power, and is widely used in vehicles and large equipment. Because diesel engines have a large number of bolts and fasteners, ratchet wrenches with good adaptability are usually used as tightening tools when inspecting or maintaining diesel engines, so as to reduce the labor intensity of users and improve the efficiency of tightening bolts and fasteners.

[0003] In related technologies, a ratchet wrench mainly consists of a wrench head, a ratchet, a pair of locking arms, and a cam switch for switching the locking arms. Each locking arm has a pawl at its free end, connected to the inner wall of the wrench head via a spring. This pawl applies an elastic force to the locking arm, causing the pawl at the end of the locking arm to engage with the ratchet. When the rotating cam switch pushes the pawl at the end of one locking arm to separate from the ratchet, the other locking arm engages with the ratchet under the elastic force of the spring, allowing the ratchet to rotate only in one direction. Therefore, when tightening bolts, the tightening direction of the wrench can be switched using the cam switch to adjust the wrench's operating angle. During tightening, because the contact area between the pawl at the end of the locking arm and the ratchet is small, the force applied to the pawl is relatively large, increasing the wear on the pawl. Over time, this reduces the locking effect of the pawl on the ratchet, affecting the tightening effect of the ratchet wrench on bolts. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide an adaptive wrench for diesel engines to solve some or all of the aforementioned technical problems.

[0005] To achieve the above objectives, this application provides an adaptive wrench for a diesel engine, comprising:

[0006] The wrench body is provided with a receiving cavity;

[0007] A screwing component is slidably disposed within the accommodating cavity, and an adapter is provided on one side of the screwing component;

[0008] The reversing component is screwed to the wrench body and rotatably connected to the side of the screwing component away from the adapter. It is configured to adjust the position of the screwing component in the receiving cavity and switch the screwing direction of the screwing component.

[0009] The first braking component and the second braking component are disposed within the accommodating cavity and are both slidably connected to the wrench body; the first braking component and the second braking component are respectively disposed on opposite sides of the screwing component; wherein, the braking direction of the first braking component on the screwing component is opposite to the braking direction of the second braking component on the screwing component.

[0010] Optionally, the screwing component includes:

[0011] A screwing block is slidably disposed within the accommodating cavity and positioned between the first braking component and the second braking component;

[0012] The first and second ratchet teeth are disposed on the screwing block and are evenly arranged along the circumference of the screwing block. The first ratchet tooth is disposed on the same side as the adapter and the second ratchet tooth is disposed on the same side as the reversing component. The tilt direction of the first ratchet tooth is opposite to the tilt direction of the second ratchet tooth.

[0013] Optionally, the first actuating component includes:

[0014] The first actuating ring is disposed in the accommodating cavity and is slidably connected to the wrench body;

[0015] The first actuating ratchet is located on the side of the first actuating ring near the screw block and is arranged in a uniform ring shape. The tilt direction of the first actuating ratchet is the same as the tilt direction of the second screw ratchet and is adapted to the structure of the first screw ratchet.

[0016] A first spring is disposed within the accommodating cavity and is connected to the side of the first actuating ring away from the screw block and the inner wall of the accommodating cavity, respectively.

[0017] Optionally, the second actuating component includes:

[0018] The second braking ring is disposed in the accommodating cavity and is slidably connected to the wrench body;

[0019] The second braking ratchet is located on the side of the second braking ring near the screwing block and is arranged in a uniform ring shape. The tilt direction of the second braking ratchet is the same as that of the first screwing ratchet and is adapted to the structure of the second screwing ratchet.

[0020] The second spring is disposed in the accommodating cavity and is connected to the side of the second braking ring away from the screw block and the inner wall of the accommodating cavity, respectively.

[0021] Optionally, the commutation component includes:

[0022] The reversing screw is screwed to the wrench body via a first thread, and the end of the reversing screw is rotatably connected to the screwing component;

[0023] The knob is fixedly connected to the end of the reversing screw away from the turning component.

[0024] Optionally, the commutation component further includes:

[0025] The first limiting part and the second limiting part are both fixedly connected to the reversing screw. The distance between the first limiting part and the screwing component is less than the distance between the second limiting part and the screwing component. The first thread is located between the two. The first limiting part is located inside the accommodating cavity.

[0026] Optionally, the wrench body is provided with an oil injection channel, the outlet end of the oil injection channel is connected to the accommodating cavity, and the inlet end of the oil injection channel is provided with a sealing plug.

[0027] Optionally, the adaptive wrench further includes:

[0028] A sealing ring is disposed on the wrench head body and fitted onto the adapter, and is configured to seal between the wrench head body and the adapter.

[0029] Optionally, the wrench body is connected to a telescopic handle, the telescopic handle comprising:

[0030] The handle body has an end fixedly connected to the wrench head body, and the side walls of the handle body are respectively provided with a limit groove and an assembly groove.

[0031] A handle sleeve is fitted onto the handle body, and the inner wall of the handle body is provided with a limiting protrusion, which is slidably disposed within the limiting groove.

[0032] An adjustment component, disposed within the mounting slot, is configured to adjust the usable length of the telescopic handle.

[0033] Optionally, the adjusting component includes:

[0034] An adjusting screw is disposed in the assembly groove, and the two ends of the adjusting screw are respectively rotatably connected to the side wall of the assembly groove and fixedly connected to an adjusting wheel;

[0035] A threaded sleeve is disposed in the assembly groove and fixedly connected to the inner side wall of the handle sleeve. The threaded sleeve is screwed to the adjusting screw through a second thread.

[0036] As can be seen from the above, the adaptive wrench for diesel engines provided in this application can switch the position of the tightening component in the receiving cavity using a reversing component, so that it contacts the first braking component and the second braking component. Since the tightening component is located between the first braking component and the second braking component, when the tightening component contacts the first braking component or the second braking component, it can make the tightening component have a larger contact area with one of them, improve the tightening firmness, and reduce the wear between the tightening component and the first braking component and the second braking component, thus ensuring the tightening effect of the ratchet wrench on bolt fasteners. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the adaptive wrench in this application;

[0039] Figure 2 This is a cross-sectional schematic diagram of the wrench body in this application;

[0040] Figure 3 This is an exploded schematic diagram of the screwing component, the first braking component, and the second braking component in this application;

[0041] Figure 4 This is a cross-sectional view of the telescopic handle in this application.

[0042] Explanation of reference numerals in the attached figures:

[0043] 100. Wrench head body; 101. Receiving cavity; 102. Oil injection channel; 103. Sealing plug; 104. Sealing ring; 110. First end cap; 120. Second end cap;

[0044] 200, Tightening component; 210, Tightening block; 220, First tightening ratchet; 230, Second tightening ratchet;

[0045] 300, reversing component; 310, reversing screw; 311, first thread; 320, knob; 330, first limiting part; 340, second limiting part;

[0046] 400, First braking component; 410, First braking ring; 420, First braking ratchet; 430, First spring;

[0047] 500, Second braking component; 510, Second braking ring; 520, Second braking ratchet; 530, Second spring;

[0048] 600, Telescopic handle; 610, Handle body; 611, Limiting groove; 612, Assembly groove; 620, Handle sleeve; 621, Limiting protrusion; 630, Adjusting component; 631, Adjusting screw; 6311, Adjusting wheel; 632, Threaded sleeve; 6322, Second thread;

[0049] 700. Adapter. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0051] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0052] The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0053] In related technologies, a ratchet wrench mainly includes a wrench head, a ratchet, a pair of locking arms, and a cam switching mechanism for switching the locking arms. Each locking arm has a pawl at its free end, connected to the inner wall of the wrench head via a spring, which applies an elastic force to the locking arm, causing the pawl at the end of the locking arm to engage with the ratchet. When the rotating cam switching mechanism pushes the pawl at the end of one locking arm to separate from the ratchet, the other locking arm engages with the ratchet under the elastic force of the spring, allowing the ratchet to rotate only in one direction. Therefore, in the rotation... When tightening bolts, the wrench's tightening direction can be switched using a cam switch to adjust the wrench's operating angle. However, due to the small size of the locking arm, the contact area between the pawl at the end of the locking arm and the ratchet is also relatively small. Therefore, during tightening, a larger force is applied to the pawl, increasing its wear. After long-term use, the worn pawl reduces its locking effect on the ratchet, affecting the ratchet wrench's tightening effect on bolts and reducing the efficiency of tightening bolts.

[0054] In view of this, this application provides an adaptive wrench for a diesel engine, including a wrench head body 100 with a receiving cavity 101; a turning component 200 slidably disposed within the receiving cavity 101, with an adapter 700 disposed on one side of the turning component 200; a reversing component 300 screwed to the wrench head body 100 and rotatably connected to the side of the turning component 200 away from the adapter 700, configured to adjust the position of the turning component 200 within the receiving cavity 101 and switch the turning direction of the turning component 200; a first braking component 400 and a second braking component 500 disposed within the receiving cavity 101 and both slidably connected to the wrench head body 100; the first braking component 400 and the second braking component 500 are respectively disposed on opposite sides of the turning component 200; wherein the braking direction of the first braking component 400 on the turning component 200 is opposite to the braking direction of the second braking component 500 on the turning component 200.

[0055] See Figures 1-4 This application provides an adaptive wrench for loosening or tightening bolts in mechanical equipment such as diesel engines. The adaptive wrench includes a wrench head body 100, a tightening component 200, a reversing component 300, a first braking component 400, and a second braking component 500. The wrench head body 100 has a receiving cavity 101 to accommodate the first braking component 400, the tightening component 200, and the second braking component 500. The reversing component 300 is screwed onto the wrench head body 100 and rotatably connected to the tightening component 200. By rotating the wrench head body 100 and the reversing component 300, the tightening component 200 can slide within the receiving cavity 101, changing its position within the cavity and thus enabling it to tighten or loosen bolts. The screwing component 200 abuts against either the first braking component 400 or the second braking component 500, and has a large contact area with one of them, reducing wear on the screwing component 200, the first braking component 400, and the second braking component 500 during the screwing process. In addition, since the first braking component 400 and the second braking component 500 are respectively located on opposite sides of the screwing component 200 and are slidably connected to the wrench head body 100, and their braking directions on the screwing component 200 are opposite, when the wrench head body 100 is rotated in different directions, the screwing direction of the first braking component 400 driving the screwing component 200 on the bolt fastener is opposite to the screwing direction of the second braking component 500 driving the screwing component 200 on the bolt fastener, so as to implement screwing operations in different directions.

[0056] In addition, a first end cap 110 and a second end cap 120 are respectively provided on opposite sides of the wrench body 100. Both can be fitted into the wrench body 100 and are connected to the wrench body 100 by screws. The reversing component 300 is screwed to the first end cap 110, and the adapter 700 is fitted through the second end cap 120. The first end cap 110 and the second end cap 120 provided on the wrench body 100 are used to seal the wrench body 100 and seal the components inside the accommodating cavity 101. At the same time, the first end cap 110 and the second end cap 120 connected by screws are easy to disassemble so that the user can inspect and replace the screwing component 200, the first braking component 400 and the second braking component 500 inside the accommodating cavity 101.

[0057] It should be noted that for mechanical equipment such as diesel engines, during disassembly, an adaptive wrench is mainly used to loosen the bolts and fasteners from the equipment to facilitate disassembly; that is, the tightening process is the loosening process of the bolts and fasteners. During assembly, an adaptive wrench is mainly used to tighten the bolts and fasteners onto the equipment to connect the equipment pieces; that is, the tightening process is the tightening process of the bolts and fasteners.

[0058] In some embodiments, the screwing component 200 includes a screwing block 210, which is slidably disposed in the receiving cavity 101 and disposed between the first braking component 400 and the second braking component 500; a first screwing ratchet 220 and a second screwing ratchet 230 are disposed on the screwing block 210 and are evenly arranged along the circumference of the screwing block 210; the first screwing ratchet 220 is disposed on the same side as the adapter 700, and the second screwing ratchet 230 is disposed on the same side as the reversing component 300, and the tilting direction of the first screwing ratchet 220 is opposite to the tilting direction of the second ratchet.

[0059] See Figures 2-3 By rotating the reversing component 300, the reversing component 300 can drive the tightening component 200 to slide within the accommodating cavity 101, making it abut against the first braking component 400 or the second braking component 500. Since the braking directions of the first braking component 400 and the second braking component 500 on the tightening component 200 are opposite, when the tightening component 200 abuts against the first braking component 400 or the second braking component 500, it can drive the tightening component 200 to rotate synchronously under the braking effect of the first braking component 400 or the braking effect of the second braking component 500 on the tightening component 200. And through the synchronous rotation of the adapter 700 and the tightening sleeve (not shown in the figure) used to connect the adapter 700 and the bolt fastener, the tightening of the bolt fastener is realized.

[0060] The turning component 200 includes a turning block 210 slidably disposed within the receiving cavity 101, used to provide a connection position for the first turning ratchet 220 and the second turning ratchet 230; the first turning ratchet 220 and the second turning ratchet 230 are respectively disposed on opposite sides of the turning block 210 and are evenly distributed in a ring shape, and the inclination directions of the first turning ratchet 220 and the second turning ratchet 230 are opposite, so that the braking direction of the first actuating component on the first turning ratchet 220 is the same as the braking direction of the second actuating component on the second turning ratchet 230. In the opposite direction; wherein, the braking direction of the first braking component 400 on the screwing component 200 is the first direction, and the braking direction of the second braking component 500 on the screwing component 200 is the second direction, and the first direction and the second direction are opposite, so that the first braking component 400 can drive the screwing block 210 to rotate in the first direction through the first screwing ratchet 220, or the second braking component 500 can drive the screwing block 210 to rotate in the second direction through the second screwing ratchet 230, so as to achieve the effect of screwing the bolt fastener.

[0061] In some embodiments, the first braking component 400 includes a first braking ring 410 disposed in the receiving cavity 101 and slidably connected to the wrench body 100; a first braking ratchet 420 disposed on the side of the first braking ring 410 near the turning block 210 and arranged uniformly in a ring shape, the inclination direction of the first braking ratchet 420 being the same as the inclination direction of the second turning ratchet 230 and adapted to the structure of the first turning ratchet 220; and a first spring 430 disposed in the receiving cavity 101 and connected to the side of the first braking ring 410 away from the turning block 210 and the inner wall of the receiving cavity 101, respectively.

[0062] See Figure 2 and Figure 3 The first braking component 400 is disposed in the receiving cavity 101 and can brake the screwing component 200 in one direction. When the user rotates the wrench body 100 in the first direction, the first braking component 400 can drive the screwing component 200 to rotate synchronously in the first direction, so as to screw the bolt fastener through the adapter 700 and the screwing sleeve. When the wrench body 100 is rotated in the second direction opposite to the first direction, the first braking component 400 loses its braking effect on the screwing component 200, so no force is applied to the screwing component 200. Therefore, when the wrench body 100 swings repeatedly, the bolt fastener can be screwed in one direction.

[0063] In this embodiment, the first braking component 400 includes a first braking ring 410, which is disposed in the receiving cavity 101 and slidably connected to the wrench body 100, for providing a connection position for the first braking ratchet 420, so that it moves synchronously with the wrench body 100; the first braking ratchet 420 is disposed on the side near the turning block 210, and its tilt direction is the same as the tilt direction of the second turning ratchet 230, and is adapted to the structure of the first turning ratchet 220, for unidirectional braking of the first turning ratchet 220; when the reversing component 3 When the wrench head 100 drives the screwing component 200 to approach the first braking component 400, the first screwing ratchet 220 will gradually come into contact with and mesh with the first braking ratchet 420, so that the screwing block 210 is braked by the first braking ratchet 420 and the first screwing ratchet 220. When the wrench head 100 drives the first braking ring 410 to rotate, the screwing block 210 can be driven to rotate synchronously by the first braking ratchet 420 and the first screwing ratchet 220, and the bolt fastener is rotated by the adapter 700 and the screwing sleeve fixedly connected to the screwing block 210.

[0064] When the wrench body 100 rotates in a second direction opposite to the first direction, the first braking ratchet 420 will not brake the first turning ratchet 220. Therefore, relative slippage will occur between the first braking ratchet 420 and the first turning ratchet 220, and the turning block 210 will not be rotated. To ensure that the first turning ratchet 220 and the first braking ratchet 420 are always in contact so that the first braking component 400 can brake the turning component 200 when it rotates in the first direction, a first spring 430 can be provided between the first braking ring 410 and the inner wall of the accommodating cavity 101. When the first braking ratchet 420 rotates in the second direction, the first braking ring 410 can apply pressure to the first spring 430. The elastic force of the first spring 430 pushes the first braking ratchet 420 to always abut against the first turning ratchet 220 so that the first turning ratchet 220 and the first braking ratchet 420 can re-engage when the turning action is repeated.

[0065] In some embodiments, the second braking component 500 includes a second braking ring 510 disposed in the receiving cavity 101 and slidably connected to the wrench body 100; a second braking ratchet 520 disposed on the side of the second braking ring 510 near the turning block 210 and arranged uniformly in a ring shape, the inclination direction of the second braking ratchet 520 being the same as the inclination direction of the first turning ratchet 220 and adapted to the structure of the second turning ratchet 230; and a second spring 530 disposed in the receiving cavity 101 and connected to the side of the second braking ring 510 away from the turning block 210 and the inner wall of the receiving cavity 101, respectively.

[0066] See Figure 2 and Figure 3The second braking component 500 is disposed in the receiving cavity 101 and can brake the screwing component 200 in one direction. When the user rotates the wrench body 100 in the second direction, the second braking component 500 can drive the screwing component 200 to rotate synchronously in the second direction, so as to screw the bolt fastener through the adapter 700 and the screwing sleeve. When the wrench body 100 is rotated in the first direction opposite to the second direction, the second braking component 500 loses the braking effect on the screwing component 200, so no force is applied to the screwing component 200. Therefore, when the wrench body 100 swings repeatedly, the bolt fastener can be screwed in one direction.

[0067] In this embodiment, the second braking component 500 includes a second braking ring 510, which is disposed in the receiving cavity 101 and slidably connected to the wrench body 100, for providing a connection position for the second braking ratchet 520, so that it moves synchronously with the wrench body 100; the second braking ratchet 520 is disposed on the side near the turning block 210, its tilt direction is the same as the tilt direction of the first turning ratchet 220, and it is adapted to the structure of the second turning ratchet 230, for unidirectional braking of the second turning ratchet 230; when the reversing component 3 When the 00 drives the screwing component 200 to approach the second braking component 500, the second screwing ratchet 230 will gradually come into contact with and mesh with the second braking ratchet 520, so that the screwing block 210 is braked by the second braking ratchet 520 and the second screwing ratchet 230. When the wrench body 100 drives the second braking ring 510 to rotate, the screwing block 210 can be driven to rotate synchronously by the second braking ratchet 520 and the second screwing ratchet 230, and the bolt fastener is rotated by the adapter 700 and the screwing sleeve fixedly connected to the screwing block 210.

[0068] When the wrench body 100 rotates in the first direction opposite to the second direction, the second braking ratchet 520 will not brake the second turning ratchet 230. Therefore, relative slippage will occur between the second braking ratchet 520 and the second turning ratchet 230, and the turning block 210 will not be driven to rotate. In order to ensure that the second turning ratchet 230 and the second braking ratchet 520 are always in contact so that the second braking component 500 can brake the turning component 200 when it rotates in the second direction, a second spring 530 can be provided between the second braking ring 510 and the inner wall of the accommodating cavity 101. When the second braking ratchet 520 rotates in the first direction, the second braking ring 510 can apply pressure to the second spring 530. The elastic force of the second spring 530 pushes the second braking ratchet 520 to always abut against the second turning ratchet 230 so that the second turning ratchet 230 and the second braking ratchet 520 can re-engage when the turning action is repeated.

[0069] In addition, for the first braking ring 410 in the first braking component 400 and the second braking ring 510 in the second braking component 500, both can be fixedly provided with connecting protrusions (not shown in the figure) on their sides, and connecting grooves (not shown in the figure) can be opened on the side wall of the receiving cavity 101. The connecting protrusions are slidably disposed in the connecting grooves to prevent the first braking component 400 or the second braking component 500 from rotating and causing empty turning when driving the screwing component 200, so as to ensure the screwing effect; at the same time, it can also enable the first braking component 400 or the second braking component 500 to perform one-way braking on the screwing component 200.

[0070] In some embodiments, the reversing component 300 includes a reversing screw 310, which is screwed to the wrench body 100 via a first thread 311, and the end of the reversing screw 310 is rotatably connected to the screwing component 200; and a knob 320, which is fixedly connected to the end of the reversing screw 310 away from the screwing component 200.

[0071] See Figure 2 The reversing component 300 can change the position of the tightening component 200 within the receiving cavity 101, causing it to engage with the first braking component 400 or the second braking component 500, thereby switching the tightening direction of the adaptive wrench. The reversing component 300 includes a reversing screw 310 and a knob 320. The reversing screw 310 is screwed to the wrench body 100 via a first thread 311, with one end fixedly connected to the knob 320 and the other end rotatably connected to the tightening component 200. When adjusting the position of the tightening component 200, the knob 320 drives the reversing screw to rotate within the wrench body, causing the reversing screw to rise or fall, thus causing the tightening component 200 to slide within the receiving cavity 101 and gradually engage with the first braking component 400 or the second braking component 500, thereby unidirectionally braking the tightening component 200 so that the user can tighten bolts in different directions.

[0072] It should be noted that, in order to reduce the interference of the weight of the first braking ring 410 on the elastic force of the first spring 430, and to reduce the interference of the weight of the second braking ring 510 on the elastic force of the second spring 530, the first spring 430 can be constructed using a spring with an elastic force much greater than the weight of the first braking ring 410, and the second spring 530 can be constructed using a spring with an elastic force much greater than the weight of the second braking ring 510. The specific specifications, types and dimensions can be selected according to the actual use, and will not be elaborated here.

[0073] In some embodiments, the reversing component 300 further includes a first limiting part 330 and a second limiting part 340, both of which are fixedly connected to the reversing screw 310. The distance between the first limiting part 330 and the screwing component 200 is smaller than the distance between the second limiting part 340 and the screwing component 200. The first thread 311 is located between the two, and the first limiting part 330 is located inside the receiving cavity 101.

[0074] See Figure 2 and Figure 3 In this embodiment, the reversing component 300 can drive the turning component 200 to move within the accommodating cavity 101, changing its position and causing the turning component 200 to contact and abut against the first braking component 400 or the second braking component 500, thereby switching the turning direction of the adaptive wrench. Since the reversing screw 310 is connected to the wrench head body 100 via a first thread 311, rotating the reversing screw 310 can drive the turning component 200 closer to the first braking component 400 or the second braking component 500 along its extension direction. By providing a first limiting part 330 and a second limiting part 340 on the reversing screw 310, and positioning the first thread 311 between the first limiting part 330 and the second limiting part 340, the movement of the reversing screw 310 can be restricted. The position and movement distance are adjusted to prevent the first thread 311 from disengaging from the wrench body 100, which would affect the switching effect of the reversing screw 310 on the tightening component 200. This ensures that the tightening component 200 is in full contact with the first braking component 400 or the second braking component 500, while preventing the tightening component 200 from applying excessive pressure to the first braking component 400 or the second braking component 500, which would affect the unidirectional tightening effect of the adaptive wrench. In addition, by making the distance between the first limiting part 330 and the tightening component 200 smaller than the distance between the second limiting part 340 and the tightening component 200, a corresponding adjustment distance can be provided between the first limiting part 330 and the second limiting part 340, so that when the reversing screw 310 rotates, it can drive the tightening component 200 to slide within the receiving cavity 101.

[0075] In some embodiments, the wrench body 100 is provided with an oil injection channel 102, the outlet end of the oil injection channel 102 is connected to the accommodating cavity 101, and the inlet end of the oil injection channel 102 is provided with a sealing plug 103.

[0076] See Figure 2Since the tightening component 200, the first braking component 400, and the second braking component 500 are all located within the receiving cavity 101, when the bolt fastener is tightened via the adapter 700 and the tightening sleeve, relative movement will occur between the tightening component 200, the braking component, and the second braking component 500. The one-way braking action of the first braking component 400 and the second braking component 500 will drive the tightening component 200 to rotate. To reduce wear between the components, the receiving cavity 101 needs to be filled with lubricating oil. The lubrication between the components inside the cavity 101 reduces wear between them. By providing an oil injection channel 102 in the wrench body 100 that communicates with the cavity 101, it is convenient to inject lubricating oil into the cavity 101, reducing the difficulty of adding lubricating oil. In addition, a sealing plug 103 can be provided at the inlet section of the oil injection channel 102. After the lubricating oil is injected, the sealing plug 103 can be used to seal the inlet end of the oil injection channel 102, preventing the lubricating oil in the cavity 101 from flowing back along the oil injection channel 102.

[0077] In some embodiments, the adaptive wrench also includes a sealing ring 104 disposed on the wrench head body 100 and fitted onto the adapter 700, configured to seal between the wrench head body 100 and the adapter 700.

[0078] See Figure 2 Since the accommodating cavity 101 is filled with lubricating oil for lubricating the first braking component 400, the turning component 200, and the second braking component 500, a sealing ring 104 can be provided on the wrench head body 100 to prevent lubricating oil leakage. The sealing ring 104 is fitted onto the adapter 700 to seal between the wrench head body 100 and the adapter 700, thereby confining the lubricating oil within the accommodating cavity 101. This prevents the lubricating oil from flowing out between the adapter 700 and the wrench head body 100, reducing lubricating oil waste and improving the cleanliness of the adaptive wrench surface. The sealing ring 104 can be made of wear-resistant metal or rubber materials, ensuring a good sealing effect while also having good wear resistance, thus extending the service life of the adaptive wrench.

[0079] In addition, a sealing structure (not shown in the figure) can also be provided between the area on the surface of the reversing screw 310 where the first thread 311 is not provided and the wrench body 100, such as a metal sealing ring, to prevent lubricating oil from flowing out from the gap between the reversing screw 310 and the wrench body 100 and to improve the sealing of the accommodating cavity 101.

[0080] In some embodiments, the wrench body 100 is connected to a telescopic handle 600, which includes a handle body 610. The end of the handle body 610 is fixedly connected to the wrench body 100. The side wall of the handle body 610 is provided with a limiting groove 611 and an assembly groove 612. A handle sleeve 620 is fitted onto the handle body 610. The inner wall of the handle body 610 is provided with a limiting protrusion 621, which is slidably disposed in the limiting groove 611. An adjusting component 630 is disposed in the assembly groove 612 and is configured to adjust the working length of the telescopic handle 600.

[0081] See Figure 4 The adaptive wrench also includes a telescopic handle 600 connected to the wrench head body 100, making the adaptive wrench a force-saving lever structure, reducing the difficulty for users to tighten bolts on mechanical equipment such as diesel engines. Different bolts require different torques for different tightening requirements. Therefore, by applying the telescopic handle 600 to the adaptive wrench and changing its length (i.e., adjusting the length of the lever arm in the lever structure), the magnitude of the force applied to the adaptive wrench can be changed. For example, when the area where the bolt is located is relatively small, the length of the telescopic handle 600 can be adjusted to shorten it, allowing tightening operations in confined spaces and expanding its application range. When it is necessary to fully tighten or loosen a tightened bolt, the length of the telescopic handle 600 can be adjusted to extend it, reducing the force applied to the telescopic handle 600 for tightening or loosening the bolt, thus reducing the burden on the user.

[0082] In addition, such as Figure 4 As shown, the telescopic handle 600 includes a handle body 610, a handle sleeve, and an adjustment component 630. The adjustment component 630 is disposed in an assembly groove 612 on the handle body 610 and is connected to the inner wall of the assembly groove 612 and the handle sleeve 620, respectively. When the adjustment component 630 is driven to move, the handle sleeve can move linearly on the handle body 610, changing the overall length of the telescopic handle 600 and realizing the adjustment of the length of the telescopic handle 600. In addition, a limiting groove 611 is provided on the side wall of the handle body 610. The extending direction of the limiting groove 611 is the same as the sliding direction of the handle sleeve 620, which can restrict the movement between the handle body 610 and the handle sleeve 620, preventing the two from moving around when there is relative displacement between them, and improving the stability of the telescopic handle 600 adjustment.

[0083] Additionally, it should be noted that the circumferential side of the telescopic sleeve can be provided with anti-slip texture or coated with an anti-slip coating to increase the friction between the handle sleeve 620 and the palm when using the self-adaptive wrench, preventing slippage during the tightening process, making it easier for the user to hold firmly, and improving the stability of the tightening process.

[0084] In some embodiments, the adjusting component 630 includes an adjusting screw 631 disposed in the mounting groove 612, with both ends of the adjusting screw 631 rotatably connected to the side wall of the mounting groove 612 and fixedly connected to an adjusting wheel 6311; and a threaded sleeve 632 disposed in the mounting groove 612 and fixedly connected to the inner side wall of the handle sleeve 620, with the threaded sleeve 632 screwed to the adjusting screw 631 via a second thread 6322.

[0085] See Figure 4 The adjustable component 630 allows for adjustment of the working length of the telescopic handle 600, enabling the adaptive wrench to adapt to different tightening conditions. The adjustable component 630 includes an adjusting screw 631 and a threaded sleeve 632 screwed together via a second thread 6322. Both the adjusting screw 631 and the threaded sleeve 632 are located within a mounting groove 612. The two ends of the adjusting screw 631 are rotatably connected to the side wall of the mounting groove 612, and the threaded sleeve 632 is fixedly connected to the inner wall of the handle sleeve 620. When it is necessary to adjust the working length of the telescopic handle 600... When the length is adjusted, rotating the adjusting screw 631 will cause the threaded sleeve 632 to move along the extension direction of the adjusting screw 631 via the second thread 6322, and simultaneously drive the handle sleeve 620, which is fixedly connected to the threaded sleeve 632, to move, thereby adjusting the length of the telescopic handle 600. In addition, the adjusting screw 631 is fixedly connected to the adjusting wheel 6311 to provide a driving position for the user, so that the user can rotate the adjusting wheel 6311 to drive the adjusting screw 631 to rotate synchronously, reducing the difficulty of adjusting the length of the telescopic handle 600.

[0086] It should be noted that a retaining ring (not shown in the figure) is fixedly sleeved on the side wall of the handle body 610, and the retaining ring is set between the adjusting wheel 6311 and the threaded sleeve 632 to restrict the movement of the handle sleeve 620 and prevent the handle sleeve 620 from blocking or obstructing the adjusting wheel 6311; at the same time, anti-slip textures can be evenly arranged on the circumferential side of the adjusting wheel 6311 to improve the friction of the circumferential side of the adjusting wheel 6311 and facilitate the user to rotate the adjusting wheel 6311.

[0087] It should be noted that the above description describes some embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0088] The various embodiments in this application are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0089] The description in this application is given for illustrative purposes and is not intended to be exhaustive or to limit the application to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of this application and to enable those skilled in the art to understand this application and design various embodiments with various modifications suitable for a particular purpose.

[0090] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in the details for the sake of brevity.

[0091] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description.

[0092] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. An adaptive wrench for a diesel engine, characterized in that, include: The wrench body is provided with a receiving cavity; A screwing component, wherein an adapter is provided on one side of the screwing component, and includes a screwing block that slides in the accommodating cavity and a first screwing ratchet and a second screwing ratchet that are evenly arranged circumferentially along the screwing block. The first screwing ratchet and the second screwing ratchet are located on opposite sides of the screwing block, and the first screwing ratchet is on the same side as the adapter, and the two are inclined in opposite directions. A reversing component, screwed to the wrench head body and rotatably connected to the side of the turning component away from the adapter, is configured to adjust the position of the turning component within the accommodating cavity and switch the turning direction of the turning component. The reversing component includes a reversing screw, a knob, a first limiting part, and a second limiting part. The reversing screw is screwed to the wrench head body via a first thread, and its end is rotatably connected to the turning component. The knob is fixedly connected to the end of the reversing screw away from the turning component. Both the first and second limiting parts are fixedly connected to the reversing screw. The distance between the first limiting part and the turning component is less than the distance between the second limiting part and the turning component. The first thread is located between the two, and the first limiting part is located within the accommodating cavity. A first braking component and a second braking component are respectively disposed in... The two sides of the screwing component; the first braking component includes a first braking ring slidably connected to the wrench body, a first braking ratchet disposed on the side of the first braking ring near the screwing block, and a first spring respectively connected to the side of the first braking ring away from the screwing block and the inner wall of the accommodating cavity, the first braking ratchet being evenly arranged in a ring and having the same inclination direction as the second screwing ratchet, and being adapted to the first screwing ratchet; the second braking component includes a second braking ring slidably connected to the wrench body, a second braking ratchet disposed on the side of the second braking ring near the screwing block, and a second spring respectively connected to the side of the second braking ring away from the screwing block and the inner wall of the accommodating cavity, the second braking ratchet being evenly arranged in a ring and having the same inclination direction as the first screwing ratchet, and being adapted to the second screwing ratchet; The first braking component and the second braking component brake the turning component in opposite directions; wherein, when the first braking component brakes the turning component, it can contact the first turning ratchet and apply force through the first braking ratchet; when the second braking component brakes the turning component, it can contact the second turning ratchet and apply force through the second braking ratchet.

2. The adaptive wrench for diesel engines according to claim 1, characterized in that, The wrench body is provided with an oil injection channel, the outlet end of the oil injection channel is connected to the accommodating cavity, and the inlet end of the oil injection channel is provided with a sealing plug.

3. The adaptive wrench for diesel engines according to claim 2, characterized in that, Also includes: A sealing ring is disposed on the wrench head body and fitted onto the adapter, and is configured to seal between the wrench head body and the adapter.

4. The adaptive wrench for diesel engines according to claim 1, characterized in that, The wrench head body is connected to a telescopic handle, the telescopic handle comprising: The handle body has an end fixedly connected to the wrench head body, and the side walls of the handle body are respectively provided with a limit groove and an assembly groove. A handle sleeve is fitted onto the handle body, and the inner wall of the handle body is provided with a limiting protrusion, which is slidably disposed within the limiting groove. An adjustment component, disposed within the mounting slot, is configured to adjust the usable length of the telescopic handle.

5. The adaptive wrench for diesel engines according to claim 4, characterized in that, The adjusting component includes: An adjusting screw is disposed in the assembly groove, and the two ends of the adjusting screw are respectively rotatably connected to the side wall of the assembly groove and fixedly connected to an adjusting wheel; A threaded sleeve is disposed in the assembly groove and fixedly connected to the inner side wall of the handle sleeve. The threaded sleeve is screwed to the adjusting screw through a second thread.

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