CN2868567Y

CN2868567Y - Open wrench with single-way acting function

Info

Publication number: CN2868567Y
Application number: CN 200520120116
Authority: CN
Inventors: 张慧铃
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-06
Filing date: 2005-12-06
Publication date: 2007-02-14
Anticipated expiration: 2015-12-06

Abstract

The utility model discloses an opened wrench having one-way action function, and the main is any one inner side of two jaws is formed with an inward concave which has a sliding hole through the jaw. A mobile jaw rod which can automatically reset is arranged in the sliding hole. The mobile jaw rod is provided with a folding plane corresponding to another folding plane of the jaw and clamps relative parallel side of screw part together in order to drive the rotation of the screw part. And when reversely rotate the opened wrench, the mobile jaw rod can inward move under the action of the screw part and avoids driving the screw part to reverse rotation in order to achieve the purpose of one-way action. The utility model can not only promote the conveniences of using the opened wrench and further enhance the speed of tighten of opened wrench or loosen of the screw part, and the invention can effectively simplify the structure, upgrade its torque and extend the service life.

Description

The open-end wrench of tool movement in one direction function

Technical field

The utility model relates to a kind of open-end wrench, refers to a kind of open-end wrench of tool movement in one direction function especially.

Background technology

The spiral shell spare of general bolt or nut and so on mainly is as the instrument that screws or loosen with all kinds of spanners, for example ratchet spanner, box spanner, monkey wrench, double offset ring spanner and open-end wrench etc., no matter and since spiral shell spare degree of tightness mainly be to finish by spinning movement, when running into to carry out the occasion of wholecircle Zhou Xuanzhuan the time, usually need advance and separate counter-rotating behind the segment distance, progressively to reach the purpose that screws or loosen, because such mode of operation is inconvenience very, therefore but the development of the Wrench of single effect such as ratchet spanner is arranged, thereby promoted the convenience that uses.Yet when running into running-on that narrow space makes spanner and can't entangle spiral shell spare from top to bottom, promptly need use the open-end wrench that to insert by side, but traditional open-end wrench is subject to the influence that structure needs flattening, and the element that ratchet or gear etc. can supply movement in one direction can't be set, so traditional open-end wrench does not have the effect of movement in one direction.

And in order to address this problem, but industry is the open-end wrench of the various movement in one directions of exploitation constantly, all is No. 262313 they " open-end wrench of tool ratcher function " novel patent cases of TaiWan, China patent announcement M as shown in Figure 6, its tool one handle 50, one end of this handle 50 has a head 51, this head 51 is provided with a storage tank, these storage tank both sides form two relative jaws 52, cooperate for doing with two parallel edges of bolt, wherein a jaw 52 is provided with a groove, the formed space of this groove and opening is enough to provide bolt in this spatial rotational, and on this jaw 52, be provided with a supporting rod 54, this supporting rod 54 utilizes a flexible member 55 to produce return action, and supporting rod 54 outer rims are provided with an axial groove 540, this axial groove 540 is for the stroke of the guide rod 56 restriction supporting rods 54 of being located at a side, this guide rod 56 utilizes a flexible member 57 and stops payment bolt provides reset function, so when the reaction force of spiral shell spare approach supporting rod 54 radially the time, can pull by supporting rod 54 and another jaw and drive spiral shell spare, and when counter-rotating when the intimate supporting rod 54 of reaction force of bolt axial, can not driven pushing away in the supporting rod 54.

Though the open-end wrench of aforementioned tool ratcher function can overcome the problem that traditional open-end wrench can't movement in one direction, right its has two large problems: one is that the overall structure of this open-end wrench is too complicated, and not only part is many, and makes difficult, moreover also raising relatively of assembly cost, do not have economic benefit; It two is that the supporting rod 54 that this open-end wrench is subjected to need utilize guide rod 56 to limit stroke, therefore its position needs deflection top, guide rod 56 just has living space and is provided with and action, so will make the pull position of spiral shell spare of supporting rod 54 folder be positioned at the epimere of corresponding parallel edges central point, have influence on and press from both sides the effect of pulling with active force, even cause supporting rod 54 to damage, and shorten its service life.

Via above-mentioned explanation, be understood that existing tool ratcher function open-end wrench since structural design do not attain perfect, and shortcoming and inconvenience such as ubiquity has complex structure, cost height, torsion is little and the life-span is short, and remain further improvement.

The utility model content

The purpose of this utility model is to provide a kind of open-end wrench of tool movement in one direction function, and it not only can reach the purpose of being convenient to operate, but and effective simplification structure more, can promote its torsion simultaneously.

For achieving the above object, technical solution of the present utility model is: a kind of open-end wrench of tool movement in one direction function, this open-end wrench has the lever of an elongated rod shape, and at least one end in lever two ends is formed with a folder jaw portion, this folder jaw portion is made up of first and second relative folder jaw, and is formed with for the storage tank that is embedded spiral shell spare between first and second folder jaw; The described first folder jaw medial surface forms clamping surface, the second folder jaw medial surface then forms one and can supply the rotating inner concave of spiral shell spare, moreover be formed with a slide opening on this second folder jaw, and this slide opening is formed with an openend in corresponding inner concave, and openend is formed with a limiting section that does not run through in corresponding wall place; Be equipped with one in this slide opening in addition and move the folder jaw, should move folder jaw top and be formed with the support surface that to paste to the slide opening limiting section, and move folder jaw top and be formed with an oblique surface for the pushing of spiral shell spare in addition, should move the folder jaw is formed with a truncation in the periphery of contiguous oblique surface clamping surface, this clamping surface can corresponding compress the parallel edges central point below of spiral shell spare opposite side, moves the folder jaw again and utilizes a flexible member to produce reset response.

The slide opening other end in the described second folder jaw is formed with a thread segment, and this thread segment can be locked and establish one for the bolt of stopping payment that moves the spacing usefulness of folder jaw.

Described mobile folder jaw bottom has protruded out a guide rod, and this guide rod can penetrate flexible member.

Described center of stopping payment bolt is formed with a polygonal guide hole, can penetrate this guide hole and move the guide rod that presss from both sides jaw.

The described guide hole of stopping payment bolt is a square opening, also is corresponding square opening and move the guide rod that presss from both sides jaw.

After adopting such scheme, when the user in counter-rotating during open-end wrench, moving the folder jaw inwardly passed by the effect of spiral shell spare, thereby unlikely drive spiral shell spare counter-rotating, and then reach the purpose of movement in one direction, and can promote the convenience that uses open-end wrench, but and effective simplification structure more, simultaneously the cost of part and assembling can be reduced, and its economic benefit can be promoted.Moreover the clamping surface of described mobile folder jaw system is pressed against the central point below of spiral shell spare parallel edges, it also has the effect that promotes torsion, and move the folder jaw and can paste fully and be butted on the second folder jaw, therefore reason breaking strain and damaging not can effectively prolong its service life.

Description of drawings

Fig. 1 is the three-dimensional appearance schematic diagram of the utility model open-end wrench;

Fig. 2 is the perspective exploded view of the utility model open-end wrench, and it discloses the assembly and the relativeness thereof of the utility model open-end wrench;

Fig. 3 is partly cut-away's schematic diagram of the utility model open-end wrench;

Fig. 4 is the action schematic diagram of the utility model practice, makes the state and the relevant position thereof of spiral shell spare in order to explanation open-end wrench folder stopper;

Fig. 5 is another action schematic diagram of the utility model practice, state and relevant position thereof when further specifying open-end wrench and returning;

Fig. 6 is partly cut-away's schematic diagram of habit formula open-end wrench, so as to its formation and corresponding relation are described.

The main element symbol description

10 levers, 11 folder jaw ends, 12 first folder jaws

120 clamping surfaces, 13 second folder jaws, 130 inner concaves

14 storage tanks, 15 slide openings, 150 openends

151 limiting sections, 152 thread segments 16 are stopped payment bolt

160 guide holes 17 move folder jaw 170 support surfaces

171 oblique surfaces, 172 clamping surfaces, 173 guide rods

18 flexible members, 20 spiral shell spares, 21 parallel edges

22 parallel edges, 50 handles, 51 heads

52 jaws, 54 supporting rods, 540 grooves

55 flexible members, 56 guide rods, 57 flexible members

The specific embodiment

The utility model is a kind of open-end wrench structure of tool movement in one direction function, as shown in Figure 1, this open-end wrench has the lever 10 of an elongated rod shape, and at least one end in lever 10 two ends is formed with a folder jaw end 11, folder jaw end 11 is made up of first and second relative 12,13 of jaw of folder, and first and second 12,13 of jaw of folder is formed with for the storage tank 14 (as shown in Figure 4) that is embedded spiral shell spare 20;

Most preferred embodiment as for the utility model feature structure, then please be simultaneously referring to Fig. 1, shown in 2 and 3, wherein the first folder jaw, 12 medial surfaces form the clamping surface 120 of corresponding spiral shell spare 20 parallel edges 21, the second folder jaw, 13 medial surfaces then form the inner concave 130 of a recess, to cooperate storage tank 14 to provide spiral shell spare 20 direct rotating spaces, moreover second folder be formed with a slide opening 15 on the jaw 13, this slide opening 15 is formed with an openend 150 in corresponding inner concave 130, openend 150 is formed with a limiting section that does not run through 151 in corresponding wall place, and slide opening 15 other ends are formed with a thread segment 152, stopping payment bolt 16 locks for one establishes, this is stopped payment bolt 16 centers and is formed with a polygonal guide hole 160, and the utility model is embodiment with the square opening;

Moreover be equipped with in the slide opening 15 one move the folder jaw 17, should move folder jaw 17 tops and be formed with the support surface 170 that to paste to slide opening 15 limiting sections 151, mobile folder jaw 17 can be subject to

stop payment bolt

16 and 151 slippages of limiting section, moreover mobile folder jaw 17 tops are formed with an oblique surface 171 in addition, make spiral shell spare can push against this smoothly for the open-end wrench counter-rotating and move folder jaw 17 (as shown in Figure 5), and move folder jaw 17 is formed with a truncation in the periphery of contiguous oblique surface 171 clamping surface 172, when mobile folder jaw 17 is limited in slide opening 15 tops, this clamping surface 172 can corresponding compress the parallel edges 22 central points below of spiral shell spare 20 opposite sides, moreover mobile folder jaw 17 bottoms protrude out the guide rod 173 that a correspondence is stopped payment bolt 16 guide holes 160, this guide rod 173 can penetrate a flexible member 18, and terminal being slidedly arranged in the guide hole 160 of stopping payment bolt 16, move the active force that folder jaw 17 resets to provide, and utilize the effect of guide hole 160 and guide rod 173, keep moving the stability that folder jaw 17 slides and can prevent to move 17 rotations of folder jaw simultaneously.

Constitute the open-end wrench structure of a simple in structure and tool movement in one direction function that torsion is high by the said structure group.

As for practice of the present utility model, then as Fig. 4, shown in 5, when turning to open-end wrench, the user differs from when moving folder jaw 17 1 sides, moving folder jaw 17 can utilize clamping surface 172 to compress the parallel edges 22 of spiral shell spare 20, the parallel edges 21 of spiral shell spare 20 opposite sides then can be resisted against the clamping surface 120 of the first folder jaw 12, open-end wrench can be utilized move folder jaw 17 and the first folder jaw, 12 clamping spiral shell spares 20, and then drive spiral shell spare 20 rotates, otherwise when reversing open-end wrench, the user (rotates) to moving folder jaw one side, spiral shell spare 20 can corresponding enter in the inner concave 130 of the second folder jaw 13, and further the oblique surface 171 that presss from both sides jaw 17 is moved in ejection, make to move in the folder jaw 17 and move and compression elastic element 18, reach the idle running purpose that does not drive spiral shell spare 20, and after crossing this parallel edges 22, can utilize flexible member 18 will move folder jaw 17 and release, in order to the operation of next circulation.

Via above-mentioned explanation as can be known, the utility model open-end wrench has the effect of simplified structure really compared to prior art, and then can save the manufacturing and the inventory cost of part, is easy to assembling simultaneously, thereby can promotes its economic benefit.Moreover the clamping surface 172 that moves folder jaw 17 is the central point below that is pressed against spiral shell spare 20 parallel edges 22, it also has the effect that promotes torsion, and move folder jaw 17 and can paste fully and be butted on the second folder jaw 13, therefore reason breaking strain and damaging not can effectively prolong its service life.

Claims

1, a kind of open-end wrench of tool movement in one direction function, this open-end wrench has the lever of an elongated rod shape, and at least one end in lever two ends is formed with a folder jaw portion, and this folder jaw portion is made up of first and second relative folder jaw, and is formed with for the storage tank that is embedded spiral shell spare between first and second folder jaw;

It is characterized in that: the described first folder jaw medial surface forms clamping surface, the second folder jaw medial surface then forms one and can supply the rotating inner concave of spiral shell spare, moreover be formed with a slide opening on this second folder jaw, this slide opening is formed with an openend in corresponding inner concave, and openend is formed with a limiting section that does not run through in corresponding wall place; Be equipped with one in this slide opening in addition and move the folder jaw, should move folder jaw top and be formed with the support surface that to paste to the slide opening limiting section, and move folder jaw top and be formed with an oblique surface for the pushing of spiral shell spare in addition, should move the folder jaw is formed with a truncation in the periphery of contiguous oblique surface clamping surface, this clamping surface can corresponding compress the parallel edges central point below of spiral shell spare opposite side, moves the folder jaw again and utilizes a flexible member to produce reset response.

2, have the open-end wrench of movement in one direction function according to claim 1, it is characterized in that: the slide opening other end in the described second folder jaw is formed with a thread segment, and this thread segment can be locked and establish one for the bolt of stopping payment that moves the spacing usefulness of folder jaw.

3, have the open-end wrench of movement in one direction function as claimed in claim 1 or 2, it is characterized in that: described mobile folder jaw bottom has protruded out a guide rod, and this guide rod can penetrate flexible member.

4, as the open-end wrench of tool movement in one direction function as described in the claim 3, it is characterized in that: described center of stopping payment bolt is formed with a polygonal guide hole, and the guide rod that moves the folder jaw can penetrate this guide hole.

5, as the open-end wrench of tool movement in one direction function as described in the claim 4, it is characterized in that: the described guide hole of stopping payment bolt is a square opening, and the guide rod that moves the folder jaw also be the square opening of correspondence.