CN216883682U - Tool wrench convenient to loosen and tighten - Google Patents

Abstract

The utility model provides a tool wrench convenient to loosen and tighten, wherein a wrench head is fixedly arranged at the upper end of a handle, the left side of the wrench head is rotationally connected with one end of a chain through a pin shaft, a rotating gear is rotationally connected to one side of the wrench head, a through arc-shaped groove with an arc-shaped structure and a strip-shaped transverse sliding groove which is transversely communicated are carved on the wrench head, a gear limiting column is slidably connected on the through arc-shaped groove, a limiting structure is slidably connected inside the transverse sliding groove, the gear limiting column is in clearance fit with the through arc-shaped groove to realize sliding connection, and the size of the gear limiting column positioned on two sides of the through arc-shaped groove is larger than the width of the arc-shaped groove; with the outer hexagonal (or polygon) of a plurality of different specifications of elasticity, can make up on one side at chain and polygon within range all can, chain specification, length are not limited, can independently choose for use according to the reality, change, and it is more nimble convenient to use, and the structure that link up the arc wall that link up, the lateral sliding groove that set up simultaneously is for lining up is difficult to gather the dust, and convenient clearance.

Description

Tool wrench convenient to loosen and tighten

Technical Field

The utility model relates to the technical field of tools, in particular to a tool wrench convenient to loosen and tighten.

Background

The wrench is a common mounting and dismounting tool, and is a manual tool for screwing bolts, screws, nuts and other screw threads to tightly hold open or trepanning fasteners of the bolts or nuts by utilizing the lever principle. The tool wrench is typically made of structural steel of carbon or alloy material. The tool wrench is generally provided with an opening or a trepan for holding the bolt or the nut at one end or both ends of the handle portion, and when the tool wrench is used, the bolt or the nut can be screwed by applying an external force to the handle portion along the rotation direction of the thread. The tool spanner of prior art is mostly fixed spanner or monkey wrench, fixed spanner sets up the opening of one (two) kind of specifications for one (two), can only screw up and loose when using the hexagonal of one (two) kind of specifications that correspond, monkey wrench realizes its opening size through the mode of manual rotatory lead screw, but because service environment advances grey, debris granule easily, so the defect of wrench lead screw department jamming appears easily, and wrench opening size need spend the time adjustment, and is inefficient, so the spanner of two kinds of types is used inconveniently.

SUMMERY OF THE UTILITY MODEL

The utility model provides a wrench convenient to loosen and tighten, and aims to solve the technical problems that most wrenches in the prior art are fixed wrenches or adjustable wrenches, a fixed tool wrench is provided with one or two specifications of openings at one (two) ends, the corresponding hexagon(s) of one (two) specifications can only be tightened and loosened in use, the adjustable wrench realizes the size of the opening in a manner of manually rotating a lead screw, but the defect of clamping stagnation of the lead screw of the wrench is easy to occur due to the fact that ash and foreign particles are easy to enter in the use environment, the size of the opening of the wrench needs to be adjusted with time, and the wrench is low in efficiency, so that the wrenches of two types are inconvenient to use.

In order to achieve the purpose, the utility model provides the following technical scheme that the tool wrench convenient to loosen and tighten comprises a handle, a wrench head, a chain and a rotating gear, wherein the wrench head is fixedly arranged at the upper end of the handle, the left side of the wrench head is rotatably connected with one end of the chain through a pin shaft, the rotating gear is rotatably connected to one side of the wrench head, a through arc-shaped groove with an arc-shaped structure and a transversely through strip-shaped transverse sliding groove are carved on the wrench head, a gear limiting column is slidably connected onto the through arc-shaped groove, and a limiting structure is slidably connected into the transverse sliding groove.

Preferably, the wrench head is of an irregular polygonal structure, and the handle and the wrench head are of a cast and integrally formed structure.

Preferably, anti-skidding grooves with transverse stripes are formed in the two opposite sides of the handle, and a rope hanging hole is formed in the lower end of the handle.

Preferably, part of teeth of the rotating gear extend out of the right side of the head of the wrench, the head interval of the rotating gear is equal to the pitch of the chain, and the head of the gear is circular.

Preferably, the limiting structure is arranged on the other side of the head of the wrench, and one end of the limiting structure extends out of the side edge of the head of the wrench and is provided with a clamping block which is bent upwards.

Preferably, the gear limiting column is in clearance fit with the through arc-shaped groove to realize sliding connection, and the size of the gear limiting column at two sides of the through arc-shaped groove is larger than the width of the arc-shaped groove; the transverse sliding groove is in clearance fit with the limiting structure to realize sliding connection, and the sizes of the limiting structures positioned on two sides of the transverse sliding groove are larger than the width of the transverse sliding groove; the purpose of such setting is mainly that gear spacing post, limit structure can not rock from top to bottom when the motion, and the operation is stable.

Compared with the prior art, the utility model has the beneficial effects that:

the chain adopted by the utility model is in a bicycle chain type, the characteristic that the chain links of the chain have a certain limiting function and can rotate at a certain angle is utilized, the hexagonal shapes and other polygonal shapes can be formed by combining the structure of one side in the polygon at the head part of the wrench, when the bicycle chain is used, the hexagon of the bolt is trapped by the chain and the one side at the head part of the wrench, and after the chain is fixed, the wrench is rotated forwards or backwards to realize the screwing and unscrewing of the external hexagon bolt. The outer hexagonal that can a plurality of different specifications of elasticity in succession, chain specification, length are not limited, can independently choose for use according to the reality, change, and it is more nimble convenient to use, can make up the within range on one side at chain and polygon all can, and it is more convenient to use, and the structure that link up the arc wall that sets up simultaneously, lateral sliding groove are for lining up is difficult to gather the dust, and convenient clearance. Most importantly, the tool wrench has the advantages that the tool wrench is universal and universal, so that the construction cost is greatly reduced, the construction efficiency and the working enthusiasm of users are improved, and better economic benefit and social benefit are achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic front view of a tool wrench for tightening and loosening the present invention;

FIG. 2 is a partial block diagram of a convenient wrench according to the present invention;

FIG. 3 is a structural view of a gear position post of the tool wrench according to the present invention;

FIG. 4 is a block diagram of a limit mechanism of the tool wrench according to the present invention;

FIG. 5 is a rear view of the convenient wrench of the present invention;

fig. 6 is an overall view of the handle and wrench head of the present invention with ease and tightness.

In the figure: the handle 1, the anti-skidding groove 101, the rope hanging hole 102, the wrench head 2, the chain 3, the rotating gear 4, the through arc-shaped groove 5, the gear limiting column 6, the transverse sliding groove 7, the limiting structure 8 and the fixture block 801.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example (b): as shown in fig. 1-6, convenient instrument spanner of elasticity, including handle 1, spanner head 2, chain 3, rotating gear 4, the fixed spanner head 2 that is provided with in 1 upper end of handle, 2 left sides of spanner head have 3 one ends of chain through round pin axle swivelling joint, 4 swivelling joint of rotating gear are in 2 one sides of spanner head, 2 last arc structures's that link up arc wall 5, the banding lateral sliding groove 7 that transversely link up of being carved with of spanner head, sliding connection has gear spacing post 6 on the arc wall 5 link up, and 7 inside sliding connection of lateral sliding groove has limit structure 8.

Further, the wrench head 2 is an irregular polygonal structure, and the handle 1 and the wrench head 2 are integrally formed by casting. The polygonal side formed by the wrench head part 2 and the chain 1 is provided with an arc-shaped groove, the purpose of the arc-shaped groove is to enable the polygonal edges and two adjacent surfaces of the polygonal edges to be accommodated in the arc-shaped groove to the maximum extent, the polygonal edges and the two adjacent surfaces of the polygonal edges are clamped by two outlet points of the arc-shaped groove and limited in movement, the polygonal edges, the arc-shaped groove and the wrench head part 2 are integrated, the thickness of the side is larger than the heel part of the wrench head part 2 (namely, the side is in a step shape), and the front surface of the side, the chain 1 and the front surface of the rotary gear 4 are in the same plane.

Furthermore, anti-skid grooves 101 with transverse stripes are arranged on the reverse two sides of the handle 1, and a rope hanging hole 102 is formed in the lower end of the handle 1. The rope hanging hole 102 can be connected with a rope, so that the wrench can be conveniently hung on a safety belt or a tool bag of a constructor or on a fixture such as a steel structure net rack and the like during high-altitude operation, and the wrench is prevented from falling.

Furthermore, part of teeth of the rotating gear 4 extend out of the right side of the wrench head 2, the head pitch of the rotating gear 4 is equal to the pitch of the chain 3, and the head of the gear is circular. The rotary gear 4 can hang two links of two chains 3 when rotating for 2 teeth.

Further, limit structure 8 is arranged on the other side of wrench head 2, and one end of limit structure 8 extends out of the side of wrench head 2 and is provided with an upwardly bent fixture block 801.

Furthermore, the gear limiting column 6 is in clearance fit with the through arc-shaped groove 5 to realize sliding connection, and the size of the gear limiting column 6 positioned on two sides of the through arc-shaped groove 5 is larger than the width of the through arc-shaped groove 5; the transverse sliding groove 7 is in clearance fit with the limiting structure 8 to realize sliding connection, and the size of the limiting structure 8 positioned on two sides of the transverse sliding groove 7 is larger than the width of the transverse sliding groove 7; the purpose of such setting is mainly that gear spacing post 6, limit structure 8 can not rock from top to bottom when the motion, and the operation is stable. The upper ends of the gear limiting column 6 and the gear limiting structure 8 are provided with knurls, so that slipping can be prevented when the gear limiting column 6 and the gear limiting structure 8 are pushed. The gear limiting column 6 is of a split structure, the upper end of the gear limiting column is a stepped cylinder, and the lower end of the gear limiting column is connected with a hexagon nut through threads; the limiting structure 8 is a split structure, the upper end of the limiting structure is a stepped cylinder, and the lower end of the limiting structure is connected with an L-shaped structure through threads.

Example 1: when the novel rotary gear is used, the through arc-shaped groove 5 and the transverse sliding groove 7 are of a through structure, so that dust is not easy to accumulate and the cleaning is convenient, the chain links of the chain 3 have a certain limiting function, the chain links can rotate at a certain angle with each other, a polygonal structure at the head part 2 of the wrench is combined, when the novel rotary gear is used, the chain 3 and the polygonal structure trap the outer hexagon of the bolt at one side, so that the chain 3 and the hexagonal edge are fully wrapped and clamped, the free end of the chain 3 leans against the inner side of the clamping block 801 of the limiting structure 8, the chain 3 is close to the position of the teeth of the rotary gear 4 and is hung on one group of teeth of the rotary gear 4, then the gear limiting column 6 is pushed by the left hand to slide to the root of the teeth of the rotary gear 4 in the through arc-shaped groove 5, so that the static limiting of the rotary gear 4 is realized, then the clamping block 801 of the limiting structure 8 is pushed by the hand to move to the side face of the chain 3 to be tightly attached, the chain 3 is limited and fixed, and then the handle 1 of the wrench is grabbed to rotate forwards or backwards, so that the screwing and loosening of the external hexagonal bolt are realized.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a convenient instrument spanner of elasticity, its characterized in that, including handle (1), spanner head (2), chain (3), swing pinion (4), fixed spanner head (2) that is provided with in handle (1) upper end, there is chain (3) one end spanner head (2) left side through round pin axle swivelling joint, swing pinion (4) swivelling joint is in spanner head (2) one side, be carved with arc structure on spanner head (2) link up arc wall (5), transversely the banding lateral sliding groove (7) that link up, sliding connection has gear spacing post (6) on link up arc wall (5), and lateral sliding groove (7) inside sliding connection has limit structure (8).

2. The tool wrench as claimed in claim 1, wherein the wrench head (2) is of irregular polygonal configuration, and the handle (1) and the wrench head (2) are of cast and integrally formed configuration.

3. The tool wrench convenient to loosen and tighten as claimed in claim 1, wherein the front surface and the back surface of the handle (1) are provided with anti-skidding grooves (101) with transverse stripes, and the lower end of the handle (1) is provided with a rope hanging hole (102).

4. The tool wrench convenient to loosen and tighten according to claim 1, wherein part of teeth of the rotating gear (4) extend out of the right side of the wrench head (2), the head pitch of the gears of the rotating gear (4) is equal to the pitch of the chain (3), and the heads of the gears are circular.

5. The tool wrench convenient to loosen and tighten according to claim 1, wherein the limiting structure (8) is arranged at the other side of the wrench head (2), and one end of the limiting structure (8) extends out of the side edge of the wrench head (2) and is provided with an upward-bent clamping block (801).

6. The tool wrench convenient to loosen and tighten as claimed in claim 1, wherein the gear limiting columns (6) are in clearance fit with the through arc-shaped grooves (5) to achieve sliding connection, and the sizes of the gear limiting columns (6) on two sides of the through arc-shaped grooves (5) are larger than the width of the arc-shaped grooves (5); the transverse sliding groove (7) is in clearance fit with the limiting structure (8) to achieve sliding connection, and the size of the limiting structure (8) on two sides of the transverse sliding groove (7) is larger than the width of the transverse sliding groove (7).

7. The tool wrench convenient to loosen and tighten according to claim 6, wherein knurling is arranged at the upper ends of the gear limiting column (6) and the limiting structure (8); the gear limiting column and the gear limiting column (6) are of a split structure, the upper end of the gear limiting column is a step-shaped cylinder, and the lower end of the gear limiting column is connected with a hexagon nut through threads; the limiting structure (8) is of a split structure, the upper end of the limiting structure is a stepped cylinder, and the lower end of the limiting structure is connected with an L-shaped structure through threads.

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