TWM626773U - chain tool - Google Patents

Abstract

The present invention provides a chain tool, which includes a rod-shaped body, and the body includes a tool end and a hand-held end located at opposite ends, wherein: an arc-shaped surface is formed on a top surface of the tool end in an extension direction, At least one side of the arc-shaped surface extends to form a second surface, and a height difference is formed between the arc-shaped surface and the second surface, and a combination portion is formed between the tool end and the hand-held end, and the two The main body is detachably formed into a pincer shape through the assembly part, and the arc-shaped surfaces of the two main bodies are correspondingly arranged, wherein the two main bodies pivot relative to the assembly part as a fulcrum.

Description

chain tool

A tool, especially a chain tool.

Modern people advocate leisure and healthy life. Choosing a bicycle as a sport is not only convenient for environmental protection, but riding with family and friends can also help increase mutual feelings. practicality. When the bicycle is riding, it is inevitable that the chain will be damaged or even broken, so that a chain quick release and a chain removal tool become a must-have item for a rider. In the current market, most of the chain removal tools are similar to a pair of pliers. A pincer part at the front end of the chain removal tool is used to penetrate into a gap formed by the two sides of the chain quick-lock, and the pincer part squeezes so that the two The sides can be misaligned with each other to release the chain snap.

However, the size and thickness of the chains installed on different types of bicycles are often different, resulting in different sizes of the gaps, so that the chain removal tool also forms various sizes and thicknesses, especially when When the variable-speed self-propelled chain has at least two sizes of the chain, the storage of a plurality of the chain removal tools similar to the pliers will be relatively messy, heavy and inconvenient to carry. In addition, the smaller the gap, the smaller the tongs must be relatively, and the situation that the hardness is insufficient and fracture is often caused during use. In view of this, it is an urgent goal in the related field to create a chain removal tool that can be carried easily and is suitable for the quick-release chain of various sizes.

In order to develop a chain dismantling tool that can be applied to the quick-release chain of various sizes, the present invention provides a chain tool, which includes a rod-shaped body, and the body includes a tool end located at opposite ends and a handle end, wherein : an arc-shaped surface is formed in the extension direction on a top surface of the tool end, at least one side of the arc-shaped surface extends to form a second surface, and a height difference is formed between the arc-shaped surface and the second surface, and , a combination part is formed between the tool end and the hand-held end, and the two bodies are detachable through the combination part to form a type of pliers, and the arc-shaped surfaces of the two bodies are correspondingly arranged, wherein the two bodies Relatively pivot with the combined part as a fulcrum.

Wherein, the distance between the combination part and the tool end is shorter than the distance between the combination part and the hand-held end.

Wherein, a concave curved section protrudes from the tool end of the main body along the length direction, and the end of the concave curved section is bent toward the top surface direction, and the arc-shaped surface is formed on the top surface of the concave curved section, The arc-shaped surface is preferably located in the middle of the width of the main body, wherein the arc-shaped surface is matched with a circumferential surface of a roller on a chain.

Wherein, the concave curved section corresponds to at least one side of the arc-shaped surface, and the second surface is formed concavely from the top surface.

Wherein, the concave curved section corresponds to the other side of the arc-shaped surface, and a third surface is concave from the top surface to form a third surface, and the third surface and the arc-shaped surface generate the height difference.

Wherein, the concave curved section is concave with two tool end grooves downward from both sides of the arc-shaped surface to the top surface, and the groove bottom surfaces of the two tool end grooves constitute the second surface or the third surface. surface.

Wherein, the height difference is greater than or equal to the shortest distance formed by the peripheral surface of the ring and the edge of the chain snap when the roller is combined with a chain snap, or the height difference is greater than or equal to the mutual dislocation of the chain snap. The movement distance of the composition.

Wherein, the combination part is recessed on one side surface of the main body to form a combination groove, and the two main bodies are corresponding to each other on the top surface, and are interlocked through the combination groove, so that the two main bodies form a clamp-like shape .

Wherein, a limit segment and a hook are sequentially formed at the end of the arc-shaped surface in the extending direction, wherein a contour concave-convex formed by the arc-shaped surface, the limit segment and the hook corresponds to a contour in the chain. At least a portion of the inner chain unit.

Wherein, the limiting segment protrudes from the arc-shaped surface toward the top surface, and the distance formed by the limiting segment on the top surface along the length direction is greater than or equal to the closest distance between the two rollers in the chain , and the end of the hook is bent toward the top surface direction, and a hook surface formed by the top surface of the hook is concavely fitted with the circumferential surface of the roller, wherein one of the hooks is formed The width of the hook claw is between the distance formed by the two outer chain pieces in an outer chain unit and the distance formed by the two inner chain pieces in the inner chain unit.

Further, the chain tool includes a tool structure, the tool structure includes a positioning groove, and a positioning opening formed by the positioning groove is equal to the diameter of a valve core on a bicycle tire, or slightly larger than the width of the chain. .

Further, the positioning groove is recessed on one side of the hand-held end or recessed on one side of the concave curved section.

Further, the chain tool includes a tool structure, and the tool structure is warped toward the top surface at the handle end to form a tire digging structure.

Further, the concave curved section protrudes from both sides of the end of the hook along the length direction, so that an end opening is formed between the concave curved sections, and the distance formed by the end opening is equal to the distance of the valve core on a bicycle tire. diameter size.

The main body of the new model is not only small in size and convenient to carry, but also because the main body is a rod-shaped design, so that a plurality of the main bodies can be stacked and stored. The ends correspond to the rollers at the two ends of the quick-release chain, and the two arc-shaped surfaces are respectively abutted against at least a part of the circumferential surface of the two rollers. Then apply a pressure to operate the hand-held end, so that the two hand-held ends are close to each other, and the tool end is also close to each other. At this time, the arc-shaped surface and the second surface are respectively given to the two rollers and A pushing force of the chain quick-release makes the two quick-release pieces move mutually dislocated, and the free end of the quick-release lever is displaced to the large diameter portion of the opposite side of the quick-release piece, so that the chain quick-release can be disassembled.

Further, when at least one edge of the two quick-release pieces corresponds to the third surface, when the pressure is given to the hand-held end, the two quick-release pieces move in dislocation with each other, and the edges of the two quick-release pieces can touch each other. By leaning against the third surface, the third surface can exhibit a resisting function, preventing the chain snap from falling and losing at the moment of disassembly. The structure of the tool is arranged so that the main body and the tool can also exhibit multi-purpose properties such as repairing dropped chains, rotating an air valve cover, or acting as a tire digging rod when used alone.

10: Ontology

11: Tool end

111: Concave Curved Section

112: Tool end groove

113: Bottom surface of tool end groove

114: Limit segment

115: hook

1151: hook surface

1152: hook side wall

12: Handheld

13: Top surface

131: Arc Surface

132: Second Surface

15: The first side

16: Second side

17: Combination Department

171: Combination groove

172: Bottom of groove

173: Ribs

174: Rib groove

18: Tool Structure

181: Positioning groove

182: Digging tire structure

182A: The first digging structure

182B: Second digging structure

183: Arc Surface

184: Hook

185: Cone Tip

186: Clamping surface

187: Fixed groove

1871: Grooved Sidewalls

20: Chain quick buckle

21: Quick Buckle

22: Quick button perforation

221: Large diameter part

222: Small diameter part

23: Quick Buckle

231: Groove

30: Chain

31: Inner chain unit

311: inner chain piece

312: Inner chain space

313: Roller

3131: Circumferential surface

314: inner perforation

32: Outer chain unit

321: Outer chain piece

322: Outer chain space

323: Chain shaft

324: Outer Perforation

FIG. 1 is a perspective view of the preferred first embodiment of the new model

FIG. 2 is a schematic diagram of the combination of the preferred first embodiment of the new model

FIG. 3 is a schematic diagram of the use of the new preferred first embodiment

FIG. 4 is a schematic diagram of the structure of the preferred embodiment of the novel

Figure 5 is a schematic side view of the structure of the new preferred embodiment

FIG. 6 is a perspective view of the second preferred embodiment of the new model

FIG. 7 is a perspective view of the third preferred embodiment of the new model

FIG. 8 is a schematic diagram of the use of the second preferred embodiment of the new model

Please refer to FIG. 1 to FIG. 3 , which is a chain tool provided by the present invention, which includes a rod-shaped body 10 , and the body 10 includes a tool end 11 and a handle end 12 located at opposite ends, wherein the One of the two opposite sides of the main body 10 is further defined as a top surface 13 and a bottom surface, and a thickness is formed between the top surface 13 and the bottom surface, and the other two opposite sides of the main body 10 is further defined as a first surface A side surface 15 and a second side surface 16 , and a width is formed between the first side surface 15 and the second side surface 16 .

A combined part 17 is formed between the tool end 11 and the hand-held end 12 of the main body 10 , and the two main bodies 10 can be detachably joined through the combined part 17 to form the chain tool. After the two main bodies 10 are joined together, A pliers shape is formed, so that the chain tool can operate the hand-held end 12 so that the tool end 11 acts on a chain quick-release 20 .

The two main bodies 10 of the chain tool can pivot relative to each other with the combination part 17 as the fulcrum, so that the two hand-held ends 12 can approach or move away from each other, so that the two tool ends 11 at the other end can approach or move away from each other. Preferably, the distance between the assembly portion 17 and the tool end 11 is shorter than the distance between the assembly portion 17 and the hand-held end 12 , so that the two bodies 10 can achieve extremes according to the effect of the lever principle. A labor-saving effect.

Please refer to FIG. 4 and FIG. 5 , the state of the chain quick-release 20 for connecting two free ends of a chain 30 is described first. The conventional chain 30 is composed of a plurality of inner chain units 31 and a plurality of outer chain units 32 are alternately connected in series. The inner chain unit 31 includes two inner chain pieces 311 arranged parallel to each other, and an inner chain space 312 is formed between the two inner chain pieces 311 . In the inner chain space 312 , two hollow cylindrical rollers 313 are respectively disposed at the two ends of the two inner chain pieces 311 , and two ends of the two rollers 313 are respectively connected to the two inner chain pieces 311 , and the two inner chain pieces 311 corresponding to the two rollers 313 are respectively provided with an inner through hole 314 communicating with the rollers 313 .

The outer chain unit 32 includes two outer chain pieces 321 arranged parallel to each other, and an outer chain space 322 is formed between the two outer chain pieces 321 . Two outer through holes 324 are respectively formed at both ends of the two outer chain pieces 321 . During assembly, at least a part of the two outer chain pieces 321 are respectively disposed on the outer surfaces of the two inner chain pieces 311, and one of the outer through holes 324 corresponds to one of the inner through holes 314, respectively, using a chain The shaft 323 penetrates through the outer through hole 324 , the inner through hole 314 and the roller 313 corresponding to the position, so that the inner chain unit 31 and the outer chain unit 32 are connected in series. It should be noted that, since the two outer chain pieces 321 of the outer chain unit 32 are located outside the two inner chain pieces 311 , the distance between the outer chain formed by the two outer chain pieces 321 is greater than that of the two inner chain pieces 321 . An inner chain distance formed by the chain piece 311.

The chain snap 20 includes two snap snaps 21 parallel to each other, and the snap snaps 21 respectively include a snap hole 22 and a snap bar 23 . The snap hole 22 passes through one end of the snap piece 21 , and a large diameter portion 221 and a small diameter portion 222 are formed in the extension direction of the snap hole 22 , wherein the small diameter portion 222 is located at the The end direction on the clasp 21. The quick release lever 23 protrudes from one of the planes of the quick release piece 21 , the quick release lever 23 is in the shape of a round rod, and its diameter is preferably between the large diameter portion Between 221 and the small diameter portion 222 , a groove 231 is concavely formed on the peripheral surface of the free end of the quick release lever 23 , and the diameter formed by the groove 231 is slightly smaller than the small diameter portion 222 .

When the chain snap 20 is applied to the chain 30, the two free ends of the chain 30 are both the inner chain units 31, the two snap pieces 21 are respectively positioned on two sides of the chain 30, and the two The quick release lever 23 of the quick release piece 21 corresponds to the inner through holes 314 located at the two free ends respectively, and then the quick release lever 23 penetrates the inner hole 314 and the roller 313, so that the quick release lever 23 is free The end can extend into the large-diameter portion 221 of the opposite side of the quick-release piece 21, and finally, a pulling force is given to the two quick-release pieces 21, so that the two quick-release pieces 21 are displaced relative to each other, and the groove 231 can enter The small diameter portion 222 is clamped and fixed to complete the assembly of the quick-release chain 20 .

Next, please return to FIGS. 1 to 3 , in a preferred first embodiment of the present invention, the main body 10 forms an arc-shaped surface 131 on the top surface 13 of the tool end 11 , and the arc-shaped surface 131 is formed by An radian and a width can be matched to a circumferential surface 3131 of the roller 313 , preferably, a length formed by the arc-shaped surface 131 is between 2/5 to 3/5 of the circumference of the roller 313 between 1. In this embodiment, a concave curved section 111 protrudes from the tool end 11 of the main body 10 along the length direction, and the end of the concave curved section 111 is bent toward the top surface 13 . The top surface of the concave curved section 111 is curved. The arc-shaped surface 131 is formed on the 13 , and the arc-shaped surface 131 is preferably located in the middle of the width formed by the main body 10 .

Further, a second surface 132 is formed on one side of the arc-shaped surface 131 , and a first height difference is formed between the second surface 132 and the surface of the arc-shaped surface 131 . In this embodiment, the concave curved section 111 extends in the direction of the first side surface 15 of the arc-shaped surface 131 , and is concave to the top surface 13 to form the second surface 132 , so that the second surface 132 and the arc-shaped surface 132 are concave. The shaped surface 131 is created with the first height difference. The first height difference is preferably greater than or equal to the distance formed by at least a part of the roller 313 and the edge of the quick-release chain 20 radially corresponding to at least a part of the roller 313 .

The form of the assembly portion 17 is not limited, and the two main bodies 10 can be interlocked with each other by the assembly portion 17 or combined in a pivoting manner. When the two bodies 10 are combined, the arc-shaped surfaces 131 of the two bodies 10 correspond to each other. In this embodiment, the combination portion 17 includes a combination groove 171 , and the combination groove 171 is formed concavely on the second side surface 16 of the main body 10 , the two main bodies 10 are corresponding to each other by the one top surface 13 , and The combination groove 171 is interlocked so that the two main bodies 10 form such a pincer shape. At this time, the two main bodies 10 can use the combination groove 171 as a fulcrum to pivot relative to each other.

Preferably, the bottom surface 172 of the combined groove 171 formed by recessing the second side surface 16 is aligned with the center line of the width formed by the main body 10 , so that the two main bodies 10 are formed by the combined groove 171 . When interlocking, the two arc-shaped surfaces 131 are aligned with each other, and the first side surface 15 and the second side surface 16 of the two main bodies 10 are aligned with each other on the same plane.

When the assembled chain tool is used, the tool ends 11 of the two main bodies 10 are corresponding to the rollers 313 at both ends of the chain quick-release 20, and the two arc surfaces 131 are respectively abutted against the two At least a part of the circumferential surface 3131 of the roller 313 is provided. It should be noted that at this time, the edges of the two quick-release pieces 21 located at the end of the quick-release hole 22 abut against the second surface 132, and the two quick-release pieces 21 are located at the edge of the quick-release lever 23. Exposed in the direction of the second side surface 16 of the concave curved section 111 . Next, apply a pressure to operate the handle end 12, so that the two handle ends 12 are close to each other, and the tool end 11 is also close to each other. At this time, the arc surface 131 and the second surface 132 are respectively given two The pushing force of each of the rollers 313 and the chain quick release 20 causes the two quick release pieces 21 to displace each other, and the free end of the quick release lever 23 is displaced to the large diameter of the opposite quick release piece 21 221, the chain snap 20 can be disassembled.

Further referring to FIG. 6 , a third surface is formed on the other side of the arc-shaped surface 131 , and a second height difference is formed between the third surface and the surface of the arc-shaped surface 131 . In this embodiment, the The concave curved section 111 extends in the direction of the second side surface 16 and is concave on the top surface 13 to form the third table so that the second height difference is formed between the third surface and the surface of the arc-shaped surface 131 , and the second height difference is preferably greater than or equal to the center of the large-diameter portion 221 and the center of the small-diameter portion 222 The formed distance is equivalent to the moving distance formed by the mutual dislocation of the chain quick-releases. Wherein, the distance formed by the center of the large-diameter portion 221 and the center of the small-diameter portion 222 in the conventional button hole 22 is at least 2 millimeters (mm).

In use, when the two arc-shaped surfaces 131 abut against at least a part of the circumferential surface 3131 of the two rollers 313 respectively, the two quick-release tabs 21 are located on the edge of the quick-release lever 23 Corresponding to the third surface, when the pressure is applied to the hand-held end 12 , the two quick-release pieces 21 are displaced mutually, and the free end of the quick-release lever 23 is displaced to the opposite side of the quick-release piece 21 . When the diameter portion 221 is used, the edges of the two quick-release pieces 21 located on the quick-release lever 23 can abut against the third surface, so that the third surface can exhibit a resisting function, preventing the chain quick-release 20 from being disassembled. Lost in an instant.

Please refer to FIG. 6 to FIG. 7 , which are the second preferred embodiment of the chain tool provided by the new model. The difference from the above is that the concave curved section 111 extends along the length direction of the main body 10 , and the concave curved section The width of 111 is the same as that of the main body 10, wherein, two tool end grooves 112 are recessed downward from both sides of the arc-shaped surface 131 to the top surface 13, and the two tool end grooves 112 are formed. A tool end groove bottom surface 113 and the arc-shaped surface 131 form a height difference, wherein at least one of the height differences is the second height difference. In other words, the tool end groove bottom surface 113 can be the second surface 132 or the second height difference. is the third surface. In this embodiment, the height difference on both sides of the arc-shaped surface 131 is the second height difference.

The concave curved section 111 and the two tool end grooves 112 further extend along the length direction, and a limiting section 114 and a hook 115 are formed at the end of the arc-shaped surface 131 in sequence, wherein the lengths are arranged along the length direction. A contour concave and convex formed by the arc-shaped surface 131 , the limiting section 114 and the hook 115 corresponds to at least a part of the inner chain space 312 of the inner chain unit 31 and the two rollers 313. In this embodiment, the limiting segment 114 protrudes from the arc-shaped surface 131 toward the top surface 13 , and the distance formed by the limiting segment 114 and the top surface 13 along the length direction is preferably greater than or equal to the inner The shortest distance between the two rollers 313 in the chain unit 31 .

Please refer to FIGS. 4 and 8 , the end of the hook 115 is bent toward the top surface 13 , and a hook surface 1151 formed by the top surface 13 of the hook 115 is concavely fitted with a ring of the roller 313 The peripheral surface 3131, wherein the width of a hook formed by the hook 115 is between the distance of the outer chain and the distance of the inner chain.

The combination groove 171 is located on the side of the hand-held end 12 along the second side 16 and protrudes toward the tool end 11 with a protruding rib 173 . The opening is greater than or equal to the thickness formed by the main body 10 , and the first side surface 15 of the main body 10 is concavely provided with a convex rib groove 174 corresponding to the position of the convex rib 173 .

When this embodiment is used, the two bodies 10 are interlocked through the opening, and the rib 173 is positioned in the rib groove 174 of each other, so that the two bodies 10 can be combined, and the two bodies 10 The position of the protruding rib 173 against the protruding rib groove 174 can be used as a fulcrum for relative pivoting. The arrangement of the protruding rib 173 and the protruding rib groove 174 can make the two bodies 10 more stable when combined, and It can be more stable in subsequent use.

Next, the tool ends 11 of the two main bodies 10 correspond to the rollers 313 at both ends of the quick-release chain 20 , so that the two arc-shaped surfaces 131 abut against at least a part of the two rollers 313 respectively. Circumferential surface 3131, so that the inner chain unit 31 connected to the two ends of the quick-release chain 20 can be accommodated in the concave curved section 111 along the limiting section 114 and the hook 115 in sequence. At this time, the The limiting section 114 penetrates into the inner chain space 312 of the inner chain unit 31 , and the hook surface 1151 abuts against the circumferential surface 3131 of the inner chain unit 31 away from the roller 313 of the quick-release chain 20 .

Wherein, the two parallel snap-action pieces 21 and the two inner chain pieces 311 are located in the two tool end grooves 112 on both sides of the arc-shaped surface 131 , and the hook 115 is deeply connected to the inner chain unit The outer chain space 322 of the outer chain unit 32 at the other end of 31 , so that the quick chain buckle 20 can be fixed to the tool end 11 . In this embodiment, the way of operating the handheld end 12 so that the two quick-release tabs 21 are displaced from each other is the same as that described above, and will not be repeated here.

Further, in this embodiment, the hooks 115 can also be respectively deeply connected to the two outer chain spaces 322 at the other end of the inner chain unit 31 on both sides of the chain quick-lock 20, and then the chain quick-locks can be connected in sequence. The inner chain unit 31 and the chain quick release 20 on both sides of the 20 are placed in the limiting section 114 and the arcuate surface 131 correspondingly. It is worth noting that since the width of the hook is between the distance between the outer chain and the inner chain The distance between them can prevent the hook 115 from going deep into the inner chain space 312 during use, resulting in the occurrence of wrong use conditions.

The chain tool provided by the present invention may further include a tool structure 18, so that the main body 10 can exhibit multi-purpose properties when used alone. The tool structure 18 can be a positioning groove 181, and a positioning opening formed by the positioning groove 181 can be equal to the diameter of the valve core on at least one kind of bicycle tire. When the bicycle tire wants to be inflated, the positioning can be used. The groove 181 tightens or unscrews the valve core. In the first preferred embodiment shown in FIG. 1 to FIG. 3 , two positioning grooves 181 are formed concavely on one side surface of the hand-held end 12 of the tool structure 18 . Further, the positioning groove 181 can also be concavely formed on one side of the concave curved section 111 (as shown in FIG. 7 ).

The positioning opening formed by the positioning groove 181 can also be slightly larger than the width of the chain. When the chain of the bicycle encounters a chain drop, the body can be held and the chain can be hooked with the groove opening. The bicycle pedal is rotated at the same time, and the chain is reset at the same time as the bicycle pedal is rotated.

In the preferred embodiment shown in FIGS. 6 and 7 , the tool structure 18 forms a tire digging structure 182 at the end of the hand-held end 12 , so that the main body 10 can be used as a tire digging rod when used alone. In this embodiment, as shown in FIG. 6 and FIG. 7 , two tire digging structures 182 are provided for different purposes. As shown in FIG. 6 , the first tire digging structure 182A has a curvature at the end of the hand-held end 12 toward the top surface 13 , so that the top surface 13 of the first tire digging structure 182A exhibits a smooth curved surface. 183; and a second digging structure 182B provided in FIG. 7 is a hook portion 184 formed at an angle extending from the end of the handle end 12 toward the top surface 13, and the thickness of the end of the hook portion 184 extends in the direction of the extension. Decrease, so that when the second tire digging structure 182B is viewed from the first side 15 or the second side 16, the end of the second tire digging structure 182B presents a conical tip 185

Further, two sets of the main body 10 may respectively include the first tire digging structure 182A and the second tire digging structure 182B. During use, a user can use the second tire digging structure 182B with the vertebral body. The shaped tip 185 penetrates between a bicycle, a tire and a wheel frame, and hooks a tone at the corresponding position through the combined groove 171, and accommodates the tone in one of the tool end grooves 112, at this time The second tire digging structure 182B provides a thrust inside the tire, so that a gap is formed between the tire and the wheel frame, and then the user can further use the first tire digging structure 182A to penetrate into the gap and follow the The rim slides so that the tire can move away from the rim as the first tire digging structure 182A moves.

As shown in FIG. 7 , the tool structure 18 may further include a clamping surface 186 formed on the top surface 13 of the end of the concave curved section 111 . In this embodiment, the clamping surface 186 is formed The curved surface 186 is concavely disposed on the top surface 13 of the concave curved section 111 corresponding to both sides of the hook 115. When the two main bodies 10 are combined to form such a clamp shape, the two main bodies 10 are located on the two main bodies 10. And the two concave curved sections 111 corresponding to each other can be moved closer to each other by operating the hand-held end 12 . A bicycle component such as a valve body on the bicycle is clamped, and then the bicycle component is removed from the bicycle.

The tool structure 18 can also be a fixing groove 187 , the fixing groove 187 extends from the end of the concave curved section 111 on one side of the hook 115 , and is concavely arranged in a row on the top surface 13 , and the fixing groove 187 extends The groove 187 communicates with one of the tool end grooves 112 , wherein a groove side wall 1871 formed after the fixing groove 187 is recessed and a hook formed between the tool end groove 112 and the hook 115 The distance between the claw sidewalls 1152 is slightly larger than the diameter of the valve core. When the bicycle tire is inflated, the valve core can be put into the fixing groove 187 and the body 10 can be rotated to tighten or unscrew it. The valve core.

The tool structure 18 can also be formed at the end of the concave curved section 111 corresponding to the hook 115 . For example, the concave curved section 111 and the two tool end grooves 112 protrude from the end of the hook 115 along the length direction. , so that an end opening is formed between the concave curved sections 111 on both sides of the hook 115, and the distance of the end opening is slightly larger than the diameter of the valve core. When the bicycle tire wants to be inflated, the end can be used. Tighten or unscrew the valve core through the opening.

10: Ontology

11: Tool end

111: Concave Curved Section

12: Handheld

13: Top surface

131: Arc Surface

132: Second Surface

16: Second side

17: Combination Department

171: Combination groove

172: Bottom of groove

18: Tool Structure

181: Positioning groove

Claims (14)

A chain tool, comprising a rod-shaped body, the body comprising a tool end located at opposite ends and a hand-held end, wherein: An arc-shaped surface is formed on a top surface of the tool end in an extension direction, at least one side of the arc-shaped surface extends to form a second surface, and a height difference is formed between the arc-shaped surface and the second surface, and A combination part is formed between the tool end and the hand-held end, and the two bodies are detachable through the combination part to form a type of pliers, and the arc-shaped surfaces of the two bodies are correspondingly arranged, wherein the two bodies are formed by The combined part pivots relative to the fulcrum. The chain tool of claim 1, wherein the distance between the assembly part and the tool end is shorter than the distance between the assembly part and the hand-held end. The chain tool as claimed in claim 2, wherein the tool end of the main body extends along the length direction with a concave curved section protruding, and the end of the concave curved section is bent toward the top surface direction, the top surface of the concave curved section is The arc-shaped surface is formed thereon, and the arc-shaped surface is preferably located in the middle of the width of the main body, wherein the arc-shaped surface is matched with a circumferential surface of a roller on a chain. The chain tool as claimed in claim 3, wherein the concave curved section corresponds to at least one side of the arc-shaped surface, and the second surface is concave from the top surface. The chain tool as claimed in claim 4, wherein the concave curved section corresponds to the other side of the arc-shaped surface, and a third surface is concave from the top surface to form a third surface, and the third surface and the arc-shaped surface generate the height Difference. The chain tool as claimed in claim 5, the concave curved section is provided with two tool end grooves downwardly on both sides of the arc-shaped surface to the top surface, and the groove bottom surfaces of the two tool end grooves constitute the second surface or the third surface. The chain tool of any one of claims 3 to 6, wherein the height difference is greater than or equal to 2 millimeters (mm). According to the chain tool of claim 7, the combination part is recessed on one side surface of the main body to form a combination groove, the two main bodies correspond to each other on the top surface, and are interlocked through the combination groove, so that the two Each of the bodies forms such a pincer shape. According to the chain tool of claim 8, a limit section and a hook are formed in sequence at the end of the arc-shaped surface in the extension direction, wherein a space formed by the arc-shaped surface, the limit section and the hook is formed The profile relief corresponds to at least a portion of an inner chain unit in the chain. A chain tool as claimed in claim 9, wherein: The limiting segment protrudes from the arc-shaped surface toward the top surface, and the distance formed by the limiting segment along the length direction of the top surface is greater than or equal to the closest distance between the two rollers in the chain, and The end of the hook is curved toward the top surface, and a hook surface formed by the top surface of the hook is concavely fitted to the circumferential surface of the roller, wherein a hook width formed by the hook It is between the distance formed by the two outer chain pieces in an outer chain unit and the distance formed by the two inner chain pieces in the inner chain unit. The chain tool of claim 10, the chain tool comprising a tool structure comprising a positioning groove, and a positioning opening formed by the positioning groove is equal to the diameter of a valve core on a bicycle tire, or is slightly larger than the width of the chain. According to the chain tool of claim 11, the positioning groove is recessed on one side surface of the hand-held end or recessed on one side edge of the concave curved section. As claimed in claim 10, the chain tool includes a tool structure, and the tool structure is warped toward the top surface at the end of the handle end to form a tire digging structure. The chain tool as claimed in claim 10, wherein the concave curved segments protrude from both sides of the end of the hook along the length direction, so that an end opening is formed between the concave curved segments, and the distance formed by the end openings is equal to a The diameter of the valve core on a bicycle tire.

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