CN118081677A - Self-adaptive wrench for diesel engine - Google Patents

Abstract

The application provides a self-adaptive wrench for a diesel engine, which comprises a wrench head body, wherein a containing cavity is arranged on the wrench head body; the screwing part is arranged in the accommodating cavity in a sliding manner, and an adapter is arranged on one side of the screwing part; the reversing component is in rotary fit connection with the wrench head body, is in rotary connection with one side of the screwing component far away from the adapter, and is configured to adjust the position of the screwing component in the accommodating cavity and switch the screwing direction of the screwing component; the first braking component and the second braking component are arranged in the accommodating cavity and are both in sliding connection with the spanner body; the first braking component and the second braking component are respectively arranged at two opposite sides of the screwing component, and the braking direction of the first braking component to the screwing component is opposite to the braking direction of the second braking component to the screwing component; the first braking part and the second braking part are arranged on two sides of the screwing part, so that one of the first braking part and the second braking part has a larger contact area with the screwing part, the abrasion of the screwing part is reduced, and the screwing effect is ensured.

Description

Self-adaptive wrench for diesel engine

Technical Field

The application relates to the technical field of diesel engine disassembly and assembly tools, in particular to a self-adaptive wrench for a diesel engine.

Background

The diesel engine is an engine for realizing energy release by combusting diesel, mainly comprises a crank connecting rod mechanism, a valve mechanism, a starting system, a cooling system, a fuel oil supply system and a lubricating system, has the advantages of large output torque, high thermal efficiency, strong power and the like, and is widely applied to vehicles and large-scale equipment; because the diesel engine is provided with a large number of bolt fasteners, when the diesel engine is overhauled or maintained, a ratchet wrench with good self-adaptability is generally adopted as a screwing tool, so that the labor intensity of a user is reduced, and the screwing efficiency of the bolt fasteners is improved;

In the related art, a ratchet wrench mainly comprises a wrench head, a ratchet, a pair of clamping swing arms and a cam switching piece for switching the clamping swing arms; the free end of each clamping swing arm is provided with a pawl, and the pawl is connected with the inner wall of the spanner head through a spring and is used for applying elastic force to the clamping swing arm so that the pawl at the end part of the clamping swing arm is meshed with the ratchet wheel; when the rotating cam switching piece pushes the end pawl of one clamping swing arm to be separated from the ratchet wheel, the other clamping swing arm is meshed with the ratchet wheel under the elastic force of the spring, so that the ratchet wheel can only rotate in one direction; therefore, when the bolt fastener is screwed, the screwing direction of the wrench can be switched through the cam switching piece so as to adjust the using angle of the wrench; in the screwing process, as the contact area between the pawl at the end part of the clamping swing arm and the ratchet wheel is smaller, the acting force applied to the pawl in the screwing process is larger, so that the abrasion degree of the pawl is increased, the clamping effect of the pawl on the ratchet wheel is reduced over time, and the screwing effect of the ratchet wrench on the bolt fastener is influenced.

Disclosure of Invention

The present application is directed to an adaptive wrench for a diesel engine, which is used for solving some or all of the above-mentioned problems.

Based on the above object, the present application provides an adaptive wrench for a diesel engine, comprising:

the spanner body is provided with an accommodating cavity;

the screwing part is arranged in the accommodating cavity in a sliding manner, and an adapter is arranged on one side of the screwing part;

The reversing component is in rotary fit connection with the spanner body, is in rotary connection with one side of the screwing component far away from the adapter, and is configured to adjust the position of the screwing component in the accommodating cavity and switch the screwing direction of the screwing component;

The first braking component and the second braking component are arranged in the accommodating cavity and are both in sliding connection with the spanner body; the first braking part and the second braking part are respectively arranged at two opposite sides of the screwing part; the braking direction of the first braking part on the screwing part is opposite to the braking direction of the second braking part on the screwing part.

Optionally, the screwing part includes:

the screwing block is arranged in the accommodating cavity in a sliding manner and is arranged between the first braking component and the second braking component;

the first screwing ratchet and the second screwing ratchet are arranged on the screwing block and are distributed along the periphery Xiang Junyun of the screwing block; the first screwing ratchet is arranged on the same side of the adapter, the second screwing ratchet is arranged on the same side of the reversing component, and the inclination direction of the first screwing ratchet is opposite to that of the second ratchet.

Optionally, the first detent member includes:

The first braking ring is arranged in the accommodating cavity and is in sliding connection with the wrench head body;

the first braking ratchet is arranged on one side of the first braking ring, which is close to the screwing block, and is annularly and uniformly arranged, and the inclination direction of the first braking ratchet is the same as that of the second screwing ratchet and is matched with the structure of the first screwing ratchet;

the first spring is arranged in the accommodating cavity and is respectively connected with one side, away from the screwing block, of the first braking ring and the inner wall of the accommodating cavity.

Optionally, the second detent member includes:

The second braking ring is arranged in the accommodating cavity and is in sliding connection with the wrench head body;

The second braking ratchet is arranged on one side of the second braking ring, which is close to the screwing block, and is annularly and uniformly arranged, and the inclination direction of the second braking ratchet is the same as that of the first screwing ratchet and is matched with the structure of the second screwing ratchet;

The second spring is arranged in the accommodating cavity and is respectively connected with one side, away from the screwing block, of the second braking ring and the inner wall of the accommodating cavity.

Optionally, the reversing component includes:

The reversing screw rod is in screwed connection with the wrench head body through a first thread, and the end part of the reversing screw rod is in rotary connection with the screwing part;

The knob is fixedly connected with one end of the reversing screw rod, which is far away from the screwing part.

Optionally, the reversing component further includes:

The first limiting part and the second limiting part are fixedly connected with the reversing screw rod, the distance between the first limiting part and the screwing part is smaller than the distance between the second limiting part and the screwing part, the first thread is located between the first limiting part and the second limiting part, and the first limiting part is located in the accommodating cavity.

Optionally, the spanner body is provided with the oiling passageway, the exit end of oiling passageway with the holding chamber is linked together, the entrance point of oiling passageway is provided with and seals the jam.

Optionally, the adaptive wrench further comprises:

The sealing ring is arranged on the wrench body, is matched and sleeved on the adapter, and is configured to seal between the wrench body and the adapter.

Optionally, the spanner body is connected with flexible handle, flexible handle includes:

The end part of the handle body is fixedly connected with the wrench head body, and the side wall of the handle body is provided with a limit sliding groove and an assembly groove respectively;

the handle sleeve is matched and sleeved on the handle body, a limiting protrusion is arranged on the inner wall of the handle body, and the limiting protrusion is matched and slidingly arranged in the limiting chute;

and the adjusting part is arranged in the assembly groove and is configured to adjust the use length of the telescopic handle.

Optionally, the adjusting component includes:

The adjusting screw is arranged in the assembly groove, and two ends of the adjusting screw are respectively and rotatably connected with the side wall of the assembly groove and fixedly connected with an adjusting wheel;

The threaded sleeve is arranged in the assembly groove and fixedly connected with the inner side wall of the handle sleeve, and the threaded sleeve is in screwed connection with the adjusting screw rod through a second thread.

From the above, the self-adaptive wrench for the diesel engine provided by the application can switch the position of the screwing part in the accommodating cavity to be contacted with the first braking part and the second braking part by utilizing the reversing part, and the screwing part is arranged between the first braking part and the second braking part, so that when the screwing part is contacted with the first braking part or the second braking part, the screwing part has a larger contact area with one of the first braking part and the second braking part, the screwing firmness is improved, the abrasion degree between the screwing part and the first braking part and the second braking part is reduced, and the screwing effect of the ratchet wrench on a bolt fastener is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the present application or related art, the drawings that are required to be used in the description of the embodiments or related art will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort to those of ordinary skill in the art.

FIG. 1 is a schematic diagram of an adaptive wrench according to the present application;

FIG. 2 is a schematic cross-sectional view of a wrench body according to the present application;

FIG. 3 is an exploded view of the screw member, the first detent member and the second detent member of the present application;

Fig. 4 is a schematic cross-sectional view of the telescoping handle of the present application.

Reference numerals illustrate:

100. a wrench body; 101. a receiving chamber; 102. an oiling channel; 103. sealing the plug; 104. a seal ring; 110. a first end cap; 120. a second end cap;

200. Screwing the component; 210. screwing the block; 220. a first screwing ratchet; 230. a second screwing ratchet;

300. a reversing component; 310. reversing the screw rod; 311. a first thread; 320. a knob; 330. a first limit part; 340. a second limit part;

400. a first detent member; 410. a first detent ring; 420. a first detent ratchet; 430. a first spring;

500. A second detent member; 510. a second detent ring; 520. a second pawl ratchet; 530. a second spring;

600. A telescoping handle; 610. a handle body; 611. limiting sliding grooves; 612. an assembly groove; 620. a handle sleeve; 621. a limit protrusion; 630. an adjusting member; 631. adjusting a screw; 6311. an adjusting wheel; 632. a thread sleeve; 6322. a second thread;

700. An adapter.

Detailed Description

The present application will be further described in detail below with reference to specific embodiments and with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present application more apparent.

It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present application should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "first," "second," and the like, as used in embodiments of the present application, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Embodiments of the present application are described in detail below with reference to the accompanying drawings.

In the related art, a ratchet wrench mainly comprises a wrench head, a ratchet, a pair of clamping swing arms and a cam switching piece for switching the clamping swing arms; the free end of each clamping swing arm is provided with a pawl, and the pawl is connected with the inner wall of the spanner head through a spring and is used for applying elastic force to the clamping swing arm so that the pawl at the end part of the clamping swing arm is meshed with the ratchet wheel; when the rotating cam switching piece pushes the end pawl of one clamping swing arm to be separated from the ratchet wheel, the other clamping swing arm is meshed with the ratchet wheel under the elastic force of the spring, so that the ratchet wheel can only rotate in one direction; therefore, when the bolt fastener is screwed, the screwing direction of the wrench can be switched through the cam switching piece so as to adjust the using angle of the wrench; however, because the size of the clamping swing arm is smaller, the contact area between the pawl at the end part of the clamping swing arm and the ratchet wheel is also relatively smaller, so that the acting force applied to the pawl is larger in the screwing process, the abrasion degree of the pawl is increased, the clamping effect of the pawl with larger abrasion degree on the ratchet wheel is reduced after long-term use, the screwing effect of the ratchet wrench on the bolt is influenced, and the screwing efficiency of the bolt fastener is reduced.

In view of this, the present application provides an adaptive wrench for a diesel engine, including a wrench body 100 provided with a receiving cavity 101; the screwing part 200 is arranged in the accommodating cavity 101 in a sliding manner, and an adapter 700 is arranged on one side of the screwing part 200; the reversing component 300 is in screw-fit connection with the wrench head body 100, is in rotational connection with one side of the screwing component 200 away from the adapter 700, and is configured to adjust the position of the screwing component 200 in the accommodating cavity 101 and switch the screwing direction of the screwing component 200; the first braking part 400 and the second braking part 500 are arranged in the accommodating cavity 101 and are both in sliding connection with the spanner body 100; the first and second stopper parts 400 and 500 are respectively disposed at opposite sides of the screwing part 200; wherein the braking direction of the first stopper member 400 to the screwing member 200 is opposite to the braking direction of the second stopper member 500 to the screwing member 200.

Referring to fig. 1-4, the application provides an adaptive wrench, which is used for screwing a bolt fastener in mechanical equipment such as a diesel engine and the like, so that the purpose of unscrewing or screwing the bolt fastener is achieved; the self-adaptive wrench comprises a wrench body 100, a screwing part 200, a reversing part 300, a first pulling part 400 and a second pulling part 500, wherein the wrench body 100 is provided with an accommodating cavity 101 for accommodating the first pulling part 400, the screwing part 200 and the second pulling part 500; the reversing component 300 is in rotary fit connection with the wrench body 100 and is in rotary connection with the screwing component 200, so that the screwing component 200 can be driven to slide in the accommodating cavity 101 by rotating the reversing component 300 in the wrench body 100, the position of the screwing component 200 in the accommodating cavity 101 is changed, the screwing component can be in abutting contact with the first braking component 400 or the second braking component 500, the screwing component 200 and one of the screwing component and the first braking component 400 are provided with a larger contact area, and abrasion caused by the screwing component 200, the first braking component 400 and the second braking component 500 in the screwing process is reduced; in addition, since the first and second stopper members 400 and 500 are respectively disposed at opposite sides of the screwing member 200 and are both slidably connected with the wrench body 100, and the braking directions of the screwing member 200 are opposite, when the wrench body 100 is rotated in different directions, the first stopper member 400 drives the screwing member 200 to screw the bolt fastener in the opposite directions to the screwing direction of the second stopper member 500 driving the screwing member 200 to screw the bolt fastener, so as to perform screwing operations in different directions.

In addition, a first end cover 110 and a second end cover 120 are respectively arranged on two opposite sides of the wrench body 100, and can be matched and embedded on the wrench body 100, and are connected with the wrench body 100 through screws; the reversing component 300 is in screwed connection with the first end cover 110, and the adapter 700 is matched and penetrated through the second end cover 120, wherein the first end cover 110 and the second end cover 120 arranged on the wrench body 100 are used for plugging the wrench body 100, so that plugging of components in the accommodating cavity 101 is realized; meanwhile, the first end cover 110 and the second end cover 120 connected by the screws are convenient to disassemble, so that a user overhauls and replaces the screwing part 200, the first braking part 400 and the second braking part 500 in the accommodating cavity 101.

When the self-adaptive wrench is used for disassembling mechanical equipment such as a diesel engine, the self-adaptive wrench is mainly used for unscrewing the bolt fastener from the equipment so as to disassemble the equipment, namely, the screwing process is the unscrewing process of the bolt fastener; when the self-adaptive wrench is used for assembling, the self-adaptive wrench is mainly used for screwing the bolt fasteners on the equipment, so that the equipment are mutually spliced, namely the screwing process is the screwing process of the bolt fasteners.

In some embodiments, the screwing component 200 includes a screwing block 210 slidably disposed in the accommodating cavity 101 and disposed between the first braking component 400 and the second braking component 500; the first and second screw ratchet teeth 220 and 230 are provided to the screw block 210 and are uniformly arranged along the circumferential direction of the screw block 210; the first rotation ratchet 220 is provided at the same side as the adapter 700, the second rotation ratchet 230 is provided at the same side as the reversing member 300, and the inclination direction of the first rotation ratchet 220 is opposite to the inclination direction of the second ratchet.

Referring to fig. 2-3, by rotating the reversing element 300, the reversing element 300 can drive the screwing element 200 to slide in the accommodating cavity 101, so that the screwing element is in abutting contact with the first braking element 400 or the second braking element 500, and when the screwing element 200 abuts against the first braking element 400 or the second braking element 500, the first braking element 400 can be driven to synchronously rotate under the braking effect of the screwing element 200 or the braking effect of the second braking element 500 on the screwing element 200, and the screwing element 200 can be driven to synchronously rotate through the rotary joint 700 and a screwing sleeve (not labeled in the figure) for connecting the rotary joint 700 and the bolt fastener, so that screwing of the bolt fastener can be realized.

The screwing part 200 comprises a screwing block 210 slidably disposed in the housing cavity 101 for providing a connection position for the first screwing ratchet 220 and the second screwing ratchet 230; the first and second rotating ratchets 220 and 230 are respectively disposed at opposite sides of the rotating block 210 and are uniformly distributed in a ring shape, and the inclination directions of the first and second rotating ratchets 220 and 230 are opposite, so that the braking direction of the first rotating member to the first rotating ratchet 220 is opposite to the braking direction of the second rotating member to the second rotating ratchet 230; the first braking member 400 is set to be in a first direction to the screwing member 200, the second braking member 500 is set to be in a second direction to the screwing member 200, and the first direction is opposite to the second direction, so that the first braking member 400 can drive the screwing block 210 to rotate along the first direction through the first screwing ratchet 220, or the second braking member 500 can drive the screwing block 210 to rotate along the second direction through the second screwing ratchet 230, thereby achieving the screwing effect on the bolt fastener.

In some embodiments, the first detent member 400 includes a first detent ring 410 disposed in the accommodating cavity 101 and slidably connected to the wrench body 100; the first braking ratchet 420 is disposed at one side of the first braking ring 410 near the screwing block 210, and is uniformly arranged in a ring shape, and the inclination direction of the first braking ratchet 420 is the same as the inclination direction of the second screwing ratchet 230 and is matched with the structure of the first screwing ratchet 220; the first spring 430 is disposed in the accommodating cavity 101, and is connected to one side of the first stopper ring 410 away from the screwing block 210 and an inner wall of the accommodating cavity 101.

Referring to fig. 2 and 3, the first stopper member 400 is disposed in the receiving cavity 101, and is capable of braking the screwing member 200 in one direction, and when a user rotates the wrench body 100 in a first direction, the screwing member 200 can be driven to synchronously rotate in the first direction by the first stopper member 400, so as to screw the bolt fastener through the adapter 700 and the screwing sleeve; when the wrench body 100 is rotated in a second direction opposite to the first direction, the first stopper member 400 loses the braking action on the screwing member 200, and thus no force is applied to the screwing member 200, so that the bolt fastener can be unidirectionally screwed when the wrench body 100 is repeatedly swung.

In this embodiment, the first detent member 400 includes a first detent ring 410, where the first detent ring 410 is disposed in the accommodating cavity 101 and slidably connected to the wrench body 100, for providing a connection position for the first detent ratchet 420 to move synchronously with the wrench body 100; the first braking ratchet 420 is disposed at a side close to the screwing block 210, has the same inclination direction as the second screwing ratchet 230, and is adapted to the structure of the first screwing ratchet 220 for unidirectional braking of the first screwing ratchet 220; when the reversing component 300 drives the screwing component 200 to approach the first braking component 400, the first screwing ratchet 220 gradually contacts and meshes with the first braking ratchet 420, so that the screwing block 210 is braked through the first braking ratchet 420 and the first screwing ratchet 220, when the wrench head body 100 drives the first braking ring 410 to rotate, the screwing block 210 can be driven to synchronously rotate through the first braking ratchet 420 and the first screwing ratchet 220, and the bolt fastener is rotated through the adapter 700 and the screwing sleeve which are fixedly connected with the screwing block 210;

When the wrench body 100 rotates in a second direction opposite to the first direction, the first braking ratchet 420 does not exert a braking effect on the first screwing ratchet 220, so that the first braking ratchet 420 and the first screwing ratchet 220 slide relatively and the screwing block 210 is not driven to rotate; in order to ensure that the first rotation ratchet 220 is always in contact with the first stopper ratchet 420 so that the first stopper member 400 can generate a braking effect on the rotation member 200 when rotated in the first direction, a first spring 430 may be provided between the first stopper ring 410 and the inner wall of the receiving chamber 101 so that the first stopper ratchet 420 can apply pressure to the first spring 430 through the first stopper ring 410 when rotated in the second direction, and the first stopper ratchet 420 is always pushed against the first rotation ratchet 220 by the elastic force of the first spring 430 so that the first rotation ratchet 220 can be re-engaged with the first stopper ratchet 420 when the rotation is repeated later.

In some embodiments, the second detent member 500 includes a second detent ring 510 disposed in the accommodating cavity 101 and slidably connected to the wrench body 100; the second braking ratchet 520 is arranged at one side of the second braking ring 510 close to the screwing block 210, is annularly and uniformly arranged, and the inclination direction of the second braking ratchet 520 is the same as that of the first screwing ratchet 220 and is matched with the structure of the second screwing ratchet 230; the second spring 530 is disposed in the accommodating cavity 101, and is connected to a side of the second stopper ring 510 away from the screwing block 210 and an inner wall of the accommodating cavity 101.

Referring to fig. 2 and 3, the second stopper member 500 is disposed in the receiving cavity 101, and is capable of braking the screwing member 200 in one direction, and when the wrench body 100 is rotated by a user in the second direction, the screwing member 200 can be driven to synchronously rotate in the second direction by the second stopper member 500, 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 stopper member 500 loses the braking action on the screwing member 200, and thus no force is applied to the screwing member 200, so that the bolt fastener can be unidirectionally screwed when the wrench body 100 is repeatedly swung.

In this embodiment, the second detent member 500 includes a second detent ring 510, where the second detent ring 510 is disposed in the accommodating cavity 101 and slidably connected to the wrench body 100, for providing a connection position for the second detent ratchet 520 to move synchronously with the wrench body 100; the second braking ratchet 520 is disposed at a side close to the screwing block 210, has the same inclination direction as the first screwing ratchet 220, and is adapted to the structure of the second screwing ratchet 230 for unidirectional braking of the second screwing ratchet 230; when the reversing component 300 drives the screwing component 200 to approach the second braking component 500, the second screwing ratchet 230 gradually contacts and meshes 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 synchronously rotate 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 with the screwing block 210;

When the wrench body 100 rotates in the first direction opposite to the second direction, the second braking ratchet 520 does not act as a brake on the second screwing ratchet 230, so that the second braking ratchet 520 and the second screwing ratchet 230 slide relatively and the screwing block 210 is not driven to rotate; in order to ensure that the second rotation ratchet 230 is always in contact with the second stopper ratchet 520 so that the second stopper member 500 can generate a braking effect on the rotation member 200 when rotated in the second direction, a second spring 530 may be provided between the second stopper ring 510 and the inner wall of the receiving chamber 101 so that the second stopper ratchet 520 can apply pressure to the second spring 530 through the second stopper ring 510 when rotated in the first direction, and the second stopper ratchet 520 is always pushed against the second rotation ratchet 230 by the elastic force of the second spring 530 so that the second rotation ratchet 230 can be re-engaged with the second stopper ratchet 520 when the rotation is repeated later.

In addition, for the first detent ring 410 in the first detent member 400 and the second detent ring 510 in the second detent member 500, both sides may be fixedly provided with a connection protrusion (not labeled in the drawing), the side wall of the accommodating cavity 101 may be provided with a connection groove (not labeled in the drawing), the connection protrusion is slidably disposed in the connection groove in a matching manner, so that the first detent member 400 or the second detent member 500 is prevented from being screwed when being rotated to drive the screwing member 200, and the screwing effect is ensured; at the same time, the first brake member 400 or the second brake member 500 can also perform unidirectional braking on the screwing member 200.

In some embodiments, the reversing element 300 includes a reversing screw 310, which is screwed to the wrench body 100 by a first thread 311, and an end of the reversing screw 310 is rotatably connected to the screwing element 200; the knob 320 is fixedly connected with one end of the reversing screw 310 away from the screwing part 200.

Referring to fig. 2, the position of the screwing part 200 in the accommodating cavity 101 can be changed by using the reversing part 300, so that the screwing part is in abutting engagement with the first braking part 400 or the second braking part 500, and the screwing direction of the adaptive wrench is switched; the reversing component 300 comprises a reversing screw 310 and a knob 320, wherein the reversing screw 310 is in screwed connection with the wrench body 100 through a first thread 311, one end of the reversing screw is fixedly connected with the knob 320, and the other end of the reversing screw is in rotary connection with the screwing component 200; when the position of the screwing part 200 is adjusted, the knob 320 drives the switching screw to rotate on the wrench body, so that the switching screw ascends or descends, the screwing part 200 is driven to slide in the accommodating cavity 101 and gradually contacts and engages with the first braking part 400 or the second braking part 500, and the screwing part 200 is braked unidirectionally, so that a user can fasten the bolt fastener in different directions.

It should be noted that, to alleviate the interference of the gravity of the first detent ring 410 on the elastic force of the first spring 430 and alleviate the interference of the gravity of the second detent ring 510 on the elastic force of the second spring 530, the first spring 430 may be constructed by a spring with an elastic force far greater than that of the first detent ring 410, the first spring 430 may be constructed by a spring member with an elastic force far greater than that of the first detent ring 410, the second spring 530 may be constructed by a spring member with an elastic force far greater than that of the second detent ring 510, and specific specifications, kinds and dimensions may be selected according to actual use situations and will not be repeated herein.

In some embodiments, the reversing component 300 further includes a first limiting portion 330 and a second limiting portion 340, both fixedly connected with the reversing screw 310, a distance between the first limiting portion 330 and the screwing component 200 is smaller than a distance between the second limiting portion 340 and the screwing component 200, the first thread 311 is located between the two, and the first limiting portion 330 is located in the accommodating cavity 101.

Referring to fig. 2 and 3, in the present embodiment, the reversing component 300 can drive the screwing component 200 to move in the accommodating cavity 101, so as to change the use position of the screwing component, and make the screwing component 200 contact and abut against the first braking component 400 or the second braking component 500, so as to achieve the purpose of switching the screwing direction of the adaptive wrench; wherein, since the reversing screw 310 is connected with the wrench body 100 through the first thread 311, when the reversing screw 310 is rotated, the screwing component 200 can be driven to approach the first pulling component 400 or the second pulling component 500 along the extending direction thereof, and the first thread 311 is positioned between the first limiting portion 330 and the second limiting portion 340 by arranging the first limiting portion 330 and the second limiting portion 340 on the reversing screw 310, so that the moving position and the moving distance of the reversing screw 310 can be limited, the switching effect of the screwing component 200 by the reversing screw 310 is prevented from being influenced due to the separation of the first thread 311 from the wrench body 100, the screwing component 200 is prevented from exerting excessive pressure on the first pulling component 400 or the second pulling component 500 while the screwing component 200 is ensured to be fully contacted with the first pulling component 400 or the second pulling component 500, and the unidirectional screwing effect of the self-adaptive wrench is prevented from being influenced; in addition, the distance between the first limiting portion 330 and the screwing component 200 is smaller than the distance between the second limiting portion 340 and the screwing component 200, so that the first limiting portion 330 and the second limiting portion 340 have corresponding adjustment distances, and the screwing component 200 can be driven to slide in the accommodating cavity 101 when the reversing screw 310 rotates.

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

Referring to fig. 2, since the screwing part 200, the first stopper part 400 and the second stopper part 500 are all disposed in the accommodating cavity 101, when the bolt fastener is screwed through the adapter 700 and the screwing sleeve, relative movement occurs between the screwing part 200, the stopper part and the second stopper part 500, and the screwing part 200 is driven to rotate by the unidirectional braking action of the first stopper part 400 and the second stopper part 500; in order to reduce the abrasion among the components, the inside of the accommodating cavity 101 needs to be filled with lubricating oil so as to lubricate among the components in the accommodating cavity 101 and reduce the abrasion among the components; by arranging the oiling channel 102 communicated with the accommodating cavity 101 in the wrench body 100, lubricating oil is conveniently injected into the accommodating cavity 101, and the adding difficulty of the lubricating oil is reduced; in addition, the inlet section of the oiling channel 102 can be provided with a sealing plug 103, and when the lubricating oil is injected, the sealing plug 103 can be used for sealing the inlet end of the oiling channel 102, so that the phenomenon that the lubricating oil in the accommodating cavity 101 flows back along the oiling channel 102 is avoided.

In some embodiments, the adaptive wrench further includes a sealing ring 104 disposed on the wrench body 100 and cooperatively engaged with the adapter 700, and configured to seal between the wrench body 100 and the adapter 700.

Referring to fig. 2, since the accommodating cavity 101 is filled with the lubricating oil for lubricating the first stopper 400, the screwing part 200, the second stopper 500, etc., in order to avoid leakage of the lubricating oil, the wrench body 100 may be provided with the sealing ring 104, and the sealing ring 104 is sleeved on the adapter 700, so as to seal between the wrench body 100 and the adapter 700, and to limit the lubricating oil in the accommodating cavity 101, so that the lubricating oil does not flow out from between the adapter 700 and the wrench body 100, reducing the waste of the lubricating oil, and improving the cleanliness of the surface of the self-adaptive wrench; the sealing ring 104 can be made of wear-resistant metal materials or rubber materials, so that the sealing effect is guaranteed, and meanwhile, the sealing ring has a good wear-resistant effect, and the service life of the self-adaptive wrench is prolonged.

In addition, a sealing structure (not labeled in the drawing) such as a metal sealing ring or the like may be correspondingly disposed between the area of the surface of the reversing screw 310 where the first thread 311 is not disposed and the wrench body 100, so as to prevent the lubricant from flowing out from the gap between the reversing screw 310 and the wrench body 100, and improve the tightness of the accommodating cavity 101.

In some embodiments, the wrench body 100 is connected with a telescopic handle 600, the telescopic handle 600 includes a handle body 610, an end of the handle body 610 is fixedly connected with the wrench body 100, and a limiting chute 611 and an assembling chute 612 are respectively formed on a side wall of the handle body 610; the handle sleeve 620 is matched and sleeved on the handle body 610, a limit protrusion 621 is arranged on the inner wall of the handle body 610, and the limit protrusion 621 is matched and slidably arranged in the limit chute 611; an adjusting member 630, disposed in the fitting groove 612, is configured to adjust the use length of the telescopic handle 600.

Referring to fig. 4, the self-adaptive wrench further comprises a telescopic handle 600 connected with the wrench head body 100, so that the self-adaptive wrench forms a labor-saving lever structure, and the screwing difficulty of a user on a bolt fastener on mechanical equipment such as a diesel engine is reduced; the required torque is different for the bolt fasteners with different tightening requirements; therefore, by applying the telescopic handle 600 to the adaptive wrench and changing the use length of the telescopic handle 600, that is, adjusting the use length of the arm of force in the lever structure, the amount of force applied to the adaptive wrench can be changed; for example, when the area where the bolt fastener is located is relatively narrow, the use length of the telescopic handle 600 can be adjusted and shortened, so that the screwing operation can be performed in a narrow space, and the use range of the telescopic handle is enlarged; when the bolt fastener needs to be sufficiently tightened or loosened, the length of the telescopic handle 600 can be adjusted and extended, so that the force applied to the telescopic handle 600 by tightening or loosening the bolt fastener is reduced, and the load of a user is reduced.

In addition, as shown in fig. 4, the telescopic handle 600 includes a handle body 610, a handle sleeve, and an adjusting member 630, wherein the adjusting member 630 is disposed in an assembly groove 612 formed on the handle body 610 and is connected to an inner wall of the assembly groove 612 and the handle sleeve 620, respectively; when the adjusting part 630 is driven to move, the handle sleeve can linearly move on the handle body 610, so that the whole length of the telescopic handle 600 is changed, and the adjustment of the using length of the telescopic handle 600 is realized; in addition, the side wall of the handle body 610 is further provided with a limiting chute 611, and the extending direction of the limiting chute 611 is the same as the sliding direction of the handle sleeve 620, so that the handle body 610 and the handle sleeve 620 can be limited, the phenomenon of movement of the handle sleeve 620 and the handle body 610 during relative displacement is avoided, and the stability of adjustment of the telescopic handle 600 is improved.

In addition, it should be noted that, the circumference side of the telescopic tube can be provided with anti-slip lines or coated with anti-slip coating, so that the friction force between the handle sleeve 620 and the palm of the self-adaptive wrench is increased when the self-adaptive wrench is used, the slipping phenomenon in the screwing process is avoided, the telescopic tube is firmly held by a user, and the stability of the screwing process is improved.

In some embodiments, the adjusting component 630 includes an adjusting screw 631 disposed in the assembly groove 612, wherein two ends of the adjusting screw 631 are respectively rotatably connected to the side wall of the assembly groove 612 and fixedly connected to an adjusting wheel 6311; the threaded sleeve 632 is disposed in the assembly groove 612 and fixedly connected to the inner sidewall of the handle sleeve 620, and the threaded sleeve 632 is screwed to the adjusting screw 631 through the second thread 6322.

Referring to fig. 4, the adjusting part 630 can be used to adjust the use length of the telescopic handle 600, so that the adaptive wrench can be suitable for different screwing conditions; the adjusting component 630 may include an adjusting screw 631 and a threaded sleeve 632 which are connected by a second thread 6322 in a screwed manner, wherein the adjusting screw 631 and the threaded sleeve 632 are both arranged in the assembly groove 612, two ends of the adjusting screw 631 are rotatably connected with the side wall of the assembly groove 612, the threaded sleeve 632 is fixedly connected with the inner wall of the handle sleeve 620, when the use length of the telescopic handle 600 needs to be adjusted, the adjusting screw 631 is rotated, the second thread 6322 can be utilized to drive the threaded sleeve 632 to move along the extending direction of the adjusting screw 631, and the handle sleeve 620 fixedly connected with the threaded sleeve 632 is synchronously driven to move, so that the adjustment of the use length of the telescopic handle 600 is realized; in addition, the adjusting screw 631 is fixedly connected with the adjusting wheel 6311, and is used for providing a driving position for a user, so that the user rotates the adjusting wheel 6311 to drive the adjusting screw 631 to synchronously rotate, and the adjustment difficulty of the use length of the telescopic handle 600 is reduced.

It should be noted that, a blocking ring (not labeled in the figure) is fixedly sleeved on the side wall of the handle body 610, and the blocking ring is disposed between the adjusting wheel 6311 and the threaded sleeve 632, and is used for limiting the moving position of the handle sleeve 620, so as to avoid the handle sleeve 620 from blocking or obstructing the adjusting wheel 6311; meanwhile, anti-skid patterns can be uniformly arranged on the circumferential side surface of the adjusting wheel 6311, so that the friction force of the circumferential side surface of the adjusting wheel 6311 is improved, and a user can conveniently rotate the adjusting wheel 6311.

It should be noted that the foregoing describes some embodiments of the present application. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments described above and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

In the present application, each embodiment is described in a progressive manner, and each embodiment is mainly described and different from other embodiments, and the same or similar parts between the embodiments are referred to each other.

The description of the present application has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the application in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the application and the practical application, and to enable others of ordinary skill in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.

Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the application (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the application, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the application as described above, which are not provided in detail for the sake of brevity.

While the application has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of those embodiments will be apparent to those skilled in the art in light of the foregoing description.

The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, and the like, which are within the spirit and principles of the embodiments of the application, are intended to be included within the scope of the application.

Claims (10)

1. An adaptive wrench for a diesel engine, comprising:

the spanner body is provided with an accommodating cavity;

the screwing part is arranged in the accommodating cavity in a sliding manner, and an adapter is arranged on one side of the screwing part;

The reversing component is in rotary fit connection with the spanner body, is in rotary connection with one side of the screwing component far away from the adapter, and is configured to adjust the position of the screwing component in the accommodating cavity and switch the screwing direction of the screwing component;

The first braking component and the second braking component are arranged in the accommodating cavity and are both in sliding connection with the spanner body; the first braking part and the second braking part are respectively arranged at two opposite sides of the screwing part; the braking direction of the first braking part on the screwing part is opposite to the braking direction of the second braking part on the screwing part.

2. The adaptive wrench for a diesel engine according to claim 1, wherein said screwing member comprises:

the screwing block is arranged in the accommodating cavity in a sliding manner and is arranged between the first braking component and the second braking component;

the first screwing ratchet and the second screwing ratchet are arranged on the screwing block and are distributed along the periphery Xiang Junyun of the screwing block; the first screwing ratchet is arranged on the same side of the adapter, the second screwing ratchet is arranged on the same side of the reversing component, and the inclination direction of the first screwing ratchet is opposite to that of the second ratchet.

3. The adaptive wrench for a diesel engine according to claim 2, wherein said first detent member comprises:

The first braking ring is arranged in the accommodating cavity and is in sliding connection with the wrench head body;

the first braking ratchet is arranged on one side of the first braking ring, which is close to the screwing block, and is annularly and uniformly arranged, and the inclination direction of the first braking ratchet is the same as that of the second screwing ratchet and is matched with the structure of the first screwing ratchet;

the first spring is arranged in the accommodating cavity and is respectively connected with one side, away from the screwing block, of the first braking ring and the inner wall of the accommodating cavity.

4. The adaptive wrench for a diesel engine according to claim 3, wherein said second detent member comprises:

The second braking ring is arranged in the accommodating cavity and is in sliding connection with the wrench head body;

The second braking ratchet is arranged on one side of the second braking ring, which is close to the screwing block, and is annularly and uniformly arranged, and the inclination direction of the second braking ratchet is the same as that of the first screwing ratchet and is matched with the structure of the second screwing ratchet;

The second spring is arranged in the accommodating cavity and is respectively connected with one side, away from the screwing block, of the second braking ring and the inner wall of the accommodating cavity.

5. The adaptive wrench for a diesel engine according to claim 1, wherein said reversing element comprises:

The reversing screw rod is in screwed connection with the wrench head body through a first thread, and the end part of the reversing screw rod is in rotary connection with the screwing part;

The knob is fixedly connected with one end of the reversing screw rod, which is far away from the screwing part.

6. The adaptive wrench for a diesel engine according to claim 5, wherein said reversing element further comprises:

The first limiting part and the second limiting part are fixedly connected with the reversing screw rod, the distance between the first limiting part and the screwing part is smaller than the distance between the second limiting part and the screwing part, the first thread is located between the first limiting part and the second limiting part, and the first limiting part is located in the accommodating cavity.

7. The adaptive wrench for a diesel engine according to claim 1, wherein the wrench body is provided with an oil injection passage, an outlet end of the oil injection passage is in communication with the receiving chamber, and an inlet end of the oil injection passage is provided with a plug.

8. The adaptive wrench for a diesel engine according to claim 7, further comprising:

The sealing ring is arranged on the wrench body, is matched and sleeved on the adapter, and is configured to seal between the wrench body and the adapter.

9. The adaptive wrench for a diesel engine according to claim 1, wherein said wrench body is connected with a telescopic handle, said telescopic handle comprising:

The end part of the handle body is fixedly connected with the wrench head body, and the side wall of the handle body is provided with a limit sliding groove and an assembly groove respectively;

the handle sleeve is matched and sleeved on the handle body, a limiting protrusion is arranged on the inner wall of the handle body, and the limiting protrusion is matched and slidingly arranged in the limiting chute;

and the adjusting part is arranged in the assembly groove and is configured to adjust the use length of the telescopic handle.

10. The adaptive wrench for a diesel engine according to claim 9, wherein said adjustment member comprises:

The adjusting screw is arranged in the assembly groove, and two ends of the adjusting screw are respectively and rotatably connected with the side wall of the assembly groove and fixedly connected with an adjusting wheel;

The threaded sleeve is arranged in the assembly groove and fixedly connected with the inner side wall of the handle sleeve, and the threaded sleeve is in screwed connection with the adjusting screw rod through a second thread.