CN217648292U

CN217648292U - Chain type wrench

Info

Publication number: CN217648292U
Application number: CN202221164419.7U
Authority: CN
Inventors: 程巍; 储诚会; 赖如亮
Original assignee: Anhui Gaopin Plastic Technology Co ltd
Current assignee: Anhui Gaopin Plastic Technology Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-10-25
Anticipated expiration: 2032-05-16

Abstract

The utility model relates to a spanner technical field just discloses a chain formula spanner, including compound handle pole, there is the chain one end of compound handle pole through round pin axle movable mounting, and the one end of chain has the cartridge head through round pin axle swing joint, the bank of cells of stepping down has been seted up to the inner wall of compound handle pole one end, and the mounting hole of running through the state is seted up to the other end of compound handle pole. The utility model discloses the compound handle pole that sets up, the chain, clamp the head and mutually support the back, can form chain formula spanner, traditional hook-type spanner relatively, can be to the round nut or the flat nut of the different specifications of self-adaptation during the use, application range is wide, and the practicality is stronger, and the component of compound handle pole, the chain, the clamping head is simple and acquire easily, the processing cost is low, the groove group of stepping down that sets up, cooperate foretell chain formula spanner to use the back jointly, can increase chain formula spanner and twist the port department and friction between round nut or the flat nut, convenient to use person's application of force is twisted and is changeed.

Description

Chain type wrench

Technical Field

The utility model relates to a spanner technical field specifically is a chain formula spanner.

Background

The wrench is a common mounting and dismounting tool, and is a manual tool for screwing bolts, screws, nuts and other threads to tightly hold the openings or trepanning fasteners of the bolts or the nuts by utilizing a lever principle, the conventional structure is that the openings or trepanning for clamping the bolts or the nuts are formed at one end or two ends of a handle part, when in use, external force is applied to the handle part along the thread rotating direction, so that the bolts or the nuts can be screwed, and according to the appearance types, the wrench comprises a double-head solid wrench, a monkey wrench, a double-offset ring wrench, a multipurpose wrench, a knocking wrench, a socket screw driver, a torque wrench, a cross wrench, a ratchet wrench, a hook wrench and the like, wherein the hook wrench is also called as a crescent wrench and is commonly called a hook wrench and is used for screwing flat nuts with limited thickness and the like; the dismouting vehicle is exclusively used in, and last round nut of mechanical equipment, fork truck for example, the draw-in groove divide into rectangle draw-in groove and circular draw-in groove, uses in a flexible way, convenient, but there is the defect in current hook-shaped spanner's structure, and it is fixed mainly as twisting spanner end structure size, can only use limitedly to the round nut or the flat nut of single specification.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a chain formula spanner has solved the problem that above-mentioned background art provided.

The utility model provides a following technical scheme: the utility model provides a chain formula spanner, includes compound handle pole, there is the chain one end of compound handle pole through round pin axle movable mounting, and the one end of chain has the clamping head through round pin axle swing joint, the cell bank of stepping down has been seted up to the inner wall of compound handle pole one end, and the other end of compound handle pole sets up the mounting hole that runs through the state.

As the utility model discloses an optimal scheme, the inside of compound handle pole is including the handle pole body, and the both ends of handle pole body set up respectively to clamping arc handle end and semi-circular handle end, the arc length value that clamps arc handle end is greater than the diameter value of semi-circular handle end, and compound handle pole adopts multiform column structure, is favorable to satisfying a plurality of user demands in the in-service use.

As the utility model discloses an optimal scheme, the one end of chain and the one end of compound handle pole, the other end of chain and the one end of clamping the head, two junctions all inseparable, the chain is as the movable part, though adopt round pin axle and compound handle pole, clamp the head and carry out movable mounting but be in unable detached state, guarantees the stability of integrated device.

As the utility model discloses an optimal scheme, the inside of groove group of stepping down is including seven grooves of stepping down, and seven grooves of stepping down use the centre of a circle that clamps arc handle end as the benchmark to the mode of circumference array is seted up on the inner wall that clamps arc handle end, and the groove group of stepping down can be providing increase frictional force and seven grooves of stepping down set up with the mode of circumference array, is favorable to promoting the distribution of frictional force even, extension contact surface.

As the utility model discloses an optimal selection scheme, seven of the inslot portion of stepping down are the trapezium structure, and seven grooves of stepping down all run through the whole of compound handle pole, and the groove of stepping down is the scalable follow-up contact surface of treating the dismantlement part of trapezium structure, and the setting that runs through can reduce the processing degree of difficulty of the groove of stepping down group.

As the utility model discloses an optimal scheme, the card dress head is L type structure, and the corner of card dress head all carries out the circumference setting, and the card dress head can conveniently be with follow-up contact of treating the dismantlement part for L type structure, for example can clamp with round nut or flat nut.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. the utility model discloses compound handle pole, chain, the head that clamps that set up mutually support the back, can form chain formula spanner, traditional hook-type spanner relatively, can be to the round nut or the flat nut of the different specifications of self-adaptation during the use, application range is wide, and the practicality is stronger, and the component of compound handle pole, chain, the head of clamping is simple and acquire easily, and the processing cost is low.

2. The utility model discloses the bank of slots of stepping down that sets up cooperates foretell chain formula spanner to use the back jointly, can increase chain formula spanner and twist to change port department and round nut or flat nut between frictional force, convenient to use person's application of force is twisted and is changeed, improves the travelling comfort that uses.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic top view of the structure of the present invention;

FIG. 3 is a rear view of the structure of the present invention;

fig. 4 is a right-side view of the structure of the present invention.

In the figure: 1. a composite type handle; 101. a handle body; 102. clamping the arc-shaped handle end; 103. a semi-circular handle end; 2. a chain; 3. a clamping head; 4. a yielding groove group; 5. and (7) mounting holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, a chain wrench includes a composite handle bar 1, the composite handle bar 1 includes a handle bar body 101 inside, and two ends of the handle bar body 101 are respectively configured to clamp an arc-shaped handle end 102 and a semi-circular handle end 103, an arc length value of the clamped arc-shaped handle end 102 is greater than a diameter value of the semi-circular handle end 103, the clamped arc-shaped handle end 102 can provide a pressing contact condition for screwing and disassembling components for the composite handle bar 1, and the semi-circular handle end 103 facilitates a worker to grip the composite handle bar 1 and improves an aesthetic property of an overall structure.

Referring to fig. 1, 3 and 4, a chain 2 is movably mounted at one end of a composite handle bar 1 through a pin shaft, a clamping head 3 is movably connected at one end of the chain 2 through a pin shaft, the clamping head 3 is of an L-shaped structure, corners of the clamping head 3 are circumferentially arranged, the clamping head 3 is of an L-shaped structure and can be conveniently contacted with a subsequent part to be disassembled, for example, the clamping head can be clamped with a round nut or a flat nut, the arrangement of the circumferential structure can improve the attractiveness of the clamping head 3, one end of the chain 2, one end of the composite handle bar 1, the other end of the chain 2 and one end of the clamping head 3 are not separated, and the movable extension characteristics of the chain 2 can enable the composite handle bar 1, the chain 2 and the clamping head 3 to be matched with each other to form the chain wrench, so that the chain wrench can be adaptive to round nuts or flat nuts of different specifications when in use.

Referring to fig. 1 and 2, an abdicating groove group 4 is formed in an inner wall of one end of the composite handle rod 1, a through-state mounting hole 5 is formed in the other end of the composite handle rod 1, seven abdicating grooves are formed in the abdicating groove group 4, the seven abdicating grooves are formed in the inner wall of the clamped arc-shaped handle end 102 in a circumferential array manner with reference to a circle center of the clamped arc-shaped handle end 102, and are arranged in the circumferential array manner, so that the friction force distribution is improved, the contact surface is expanded, the seven abdicating grooves in the abdicating groove group 4 are all in a trapezoidal structure, the seven abdicating grooves all penetrate through the whole composite handle rod 1, and the abdicating groove group 4, when the chain type wrench is used together, the friction force between the end of the chain type wrench and the round nut or the flat nut can be increased, so that the user can apply force and twist conveniently, and the use comfort is improved.

The working principle is as follows: during the use, the middle part of the handle rod body 101 inside the composite handle rod 1 is held, then one end of the clamping head 3 is clamped on the surface of a round nut or a flat nut on the equipment, then the chain 2 is bent by applying force, the chain 2 is attached to the surface surrounding the round nut or the flat nut, the inner wall clamping the arc-shaped handle end 102 at the moment is abutted to the surface of the round nut or the flat nut, the clamping is realized, then the handle rod body 101 is screwed, the disassembly or the screwing and tightening can be realized, and the chain type wrench formed by mutually matching the composite handle rod 1, the chain 2 and the clamping head 3 can be realized by the movable extension characteristic of the chain 2, and the self-adaptive round nuts or flat nuts with different specifications can be used.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Simultaneously in the utility model discloses an in the drawing, fill the pattern and just do not do any other injecions for distinguishing the picture layer.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A chain spanner, includes compound handle pole (1), its characterized in that: the one end of compound handle pole (1) has chain (2) through round pin axle movable mounting, and the one end of chain (2) has the cartridge head (3) through round pin axle swing joint, the inner wall of compound handle pole (1) one end has been seted up and has been stepped down bank of cells (4), and the other end of compound handle pole (1) sets up mounting hole (5) of running through the state.

2. A chain wrench as claimed in claim 1, wherein: the composite handle rod (1) comprises a handle rod body (101), the two ends of the handle rod body (101) are respectively provided with an arc-shaped handle end (102) and a semicircular handle end (103), and the arc length value of the clamped arc-shaped handle end (102) is larger than the diameter value of the semicircular handle end (103).

3. A chain wrench as claimed in claim 1, wherein: one end of the chain (2) is connected with one end of the composite handle rod (1), the other end of the chain (2) is connected with one end of the clamping head (3), and the two connecting parts are not separated.

4. A chain wrench as claimed in claim 2, wherein: seven abdicating grooves are arranged in the abdicating groove group (4) on the inner wall of the arc-shaped handle end (102) in a circumferential array mode by taking the circle center of the arc-shaped handle end (102) as a reference.

5. A chain wrench as claimed in claim 2, wherein: seven yielding grooves in the yielding groove group (4) are all of a trapezoidal structure and penetrate through the whole of the composite handle rod (1).

6. A chain wrench as claimed in claim 1, wherein: the clamping head (3) is of an L-shaped structure, and corners of the clamping head (3) are circumferentially arranged.