CN217620270U

CN217620270U - Adjustable spanner

Info

Publication number: CN217620270U
Application number: CN202220725986.9U
Authority: CN
Inventors: 不公告发明人
Original assignee: Jiuwei Technology Suzhou Co ltd
Current assignee: Jiuwei Technology Suzhou Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-10-21
Anticipated expiration: 2032-03-30

Abstract

The utility model discloses an adjustable wrench, include wrench handle and the wrench end portion of locating wrench handle front end, its characterized in that: the wrench head comprises a fixed jaw and a movable jaw which are oppositely arranged, and the movable jaw is provided with a positioning tooth adjacent to the wrench handle; the adjustable wrench further comprises a first elastic piece, wherein the first elastic piece is respectively connected with the wrench head and the movable jaw and is configured to apply acting force to the movable jaw away from the fixed jaw; the adjustable wrench also comprises a locking piece, an unlocking piece abutted against the locking piece and a second elastic piece biased between the locking piece and the wrench handle, wherein the locking piece comprises a locking tooth matched with the positioning tooth, the second elastic piece is configured to apply acting force pointing to the positioning tooth to the locking piece so as to enable the locking tooth to be matched with the positioning tooth, and the unlocking piece is configured to drive the locking piece to overcome the elastic force of the second elastic piece so as to enable the locking tooth to be separated from the positioning tooth and allow the movable jaw to move relative to the fixed jaw.

Description

Adjustable spanner

Technical Field

The utility model belongs to a manual hardware and tools especially relates to an adjustable spanner.

Background

The adjustable wrench is one of the most commonly used tools in manual tools, and an operator can adjust the adjustable wrench within a certain range according to nuts with different specifications and sizes. Most of the existing adjustable wrenches adopt a mode of matching a rack with a worm gear, when bolts or nuts with different specifications are wrenched, the adjustable wrenches manufactured in the matching mode need to frequently screw the worm gear to adjust opening and closing of jaws, are easy to slip and unsafe to operate, the angles of the wrenched bolts or nuts can be damaged in different degrees, and the adjustment speed is slow, so that the operation with two hands is needed.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome current monkey wrench not enough, the utility model provides an monkey wrench, this kind of monkey wrench have not only kept current monkey wrench's all functions, can carry out the opening fast moreover and adjust, and the adjustable spanner head can not take place the back-off phenomenon of skidding when pulling bolt or nut, and the centre gripping is firm, can not harm bolt or nut, operates safe and reliable to but easily operation, but one-hand regulation.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows: the utility model provides an adjustable spanner, includes spanner handle and locates the spanner head of spanner handle front end, its characterized in that: the wrench head comprises a fixed jaw and a movable jaw which are oppositely arranged, the movable jaw is provided with a positioning tooth adjacent to the wrench handle, and in the embodiment, the positioning tooth is positioned at the bottom of the movable jaw; the adjustable wrench also comprises a first elastic piece, wherein the first elastic piece is respectively connected with the wrench head and the movable jaw and is configured to apply acting force far away from the fixed jaw to the movable jaw, and the elastic piece can push the movable jaw to enable the movable jaw to automatically move by means of elasticity.

The adjustable spanner further comprises a locking piece, an unlocking piece abutted against the locking piece and a second elastic piece biased between the locking piece and the spanner handle, the locking piece comprises a locking tooth used for being matched with the positioning tooth, the second elastic piece is configured to apply direction to the locking piece, the acting force of the positioning tooth enables the locking tooth to be matched with the positioning tooth, the unlocking piece is configured to drive the locking piece to overcome the elastic force of the second elastic piece, the locking tooth is separated from the positioning tooth, and the movable jaw is allowed to move relative to the fixed jaw.

Further, the length of the positioning tooth is not less than the maximum opening distance between the fixed jaw and the movable jaw, and in an embodiment, the length of the positioning tooth is equal to the maximum opening distance between the movable jaw and the fixed jaw.

The unlocking piece comprises an operating part and a propping part, wherein the operating part extends from one end, far away from the fixed jaw, of the wrench head, the propping part is connected with the operating part, the other end of the propping part is connected with the locking piece, the unlocking piece is rotatably arranged on the wrench head, the operating part and the propping part are positioned on the opposite sides of the rotating axis, the operating part is lifted when the unlocking piece is used, and the propping part rotates around the rotating shaft to drive the locking piece to move in the direction far away from the sliding axis of the movable jaw and extrude the second elastic part; after the movement is finished, the second elastic part pushes the locking fastener to reset.

Furthermore, the distance between adjacent tooth tips of the positioning teeth is 0-2mm, the distance between adjacent tooth tips of the locking teeth is 0-2mm, and the smaller tooth tip distance can be better adapted to bolts or nuts of various types when adjusted in actual operation.

Further, when the movable jaw positioning teeth are matched with the locking teeth, at least three teeth are meshed with each other, the more the number of the meshed teeth is, the higher the meshing stability between the movable jaw and the fixed jaw is, and the movable jaw is not easy to slip in actual operation.

Furthermore, anti-falling bosses are distributed at two ends of the bottom positioning teeth of the movable jaw, the anti-falling bosses are higher than part of the positioning teeth, when the locking piece moves to the position of the anti-falling bosses, the locking piece is stopped from moving continuously by the anti-falling bosses, and the locking teeth are meshed with the positioning teeth near the anti-falling bosses, so that the movable jaw can be prevented from falling off.

Furthermore, the individual teeth of the positioning teeth are non-axisymmetric patterns, and the larger intersection angle between the edge and the bottom edge of the teeth is a right angle or an obtuse angle, so that the positioning teeth have a backstop function, and when the movable jaw moves towards the fixed jaw, the locking fastener does not need to be moved.

Further, the wrench handle comprises at least one rigid sleeve, the rigid sleeve is of a standard size, the larger the sleeve size closer to the end of the handle, and when the nut or bolt with larger size is rotated in actual operation, larger force needs to be applied, and the rigid sleeve at the end can be used as a hanging hole for daily storage.

Drawings

FIG. 1 is an exploded view of a preferred embodiment of the adjustable wrench of the present invention;

FIG. 2 is a schematic structural view of the adjustable wrench according to the preferred embodiment of the present invention in the limit position;

FIG. 3 is a schematic view of the adjustable wrench according to the preferred embodiment of the present invention

Wherein: A. a wrench head; B. a wrench handle; b1, a rigid sleeve; 1. fixing the jaw; 2. a movable jaw; 21. positioning teeth; 3. a first elastic member; 4. a fastener; 41. a locking tooth; 5. unlocking the lock; 6. a second elastic member; 7. a guide post; 51. an operation section; 52. an abutting portion; 53. a rotating shaft; 22. anti-falling boss

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example (b):

referring to fig. 1, the utility model discloses an adjustable spanner, including spanner head A and spanner handle B, spanner head A is including relative fixed jaw 1 and the movable jaw 2 that sets up, movable jaw 2 sets up with the mode that can relatively fix jaw 1 motion to adjust the nut of keeping silent with the different specifications of adaptation.

The movable jaw 2 is provided with a positioning tooth 21 at the bottom (adjacent to the wrench handle). The adjustable wrench further comprises a first elastic element 3, a locking element 4, an unlocking element 5 abutting against the locking element, and a second elastic element 6 biased between the locking element and the wrench handle, wherein the locking element 4 comprises a locking tooth 41 matched with the positioning tooth 21, so that the movable jaw is locked, namely the jaw is locked. First elastic component 3 is connected with spanner head A and movable jaw 2 respectively, and in this embodiment, first elastic component 3 is expanding spring, and both ends are supported respectively and are pressed in spanner head A and movable jaw 2 and be in compression state all the time to exert the effort of keeping away from fixed jaw 1 to movable jaw 2 when unblock, in order to increase the width of keeping silent.

The unlocking member 5 is used for unlocking the movable jaw 2 from the locking member 4, and the second elastic member 6 is configured to apply a force to the locking member 4 toward the positioning teeth 21. When the unlocking member 5 is operated, the locking member 4 is driven to move against the elastic force of the second elastic member 6, thereby unlocking the locking teeth 41 from the positioning teeth 21.

Optionally, unlocking piece 4 includes the operation portion 41 that extends and the portion 42 that leans on that links to each other with the operation portion from the one end that fixed jaw was kept away from to the spanner head, unlocking piece 1 rotationally installs in spanner head A, operation portion 41 and the portion 42 that leans on are located the different sides of axis of rotation, and is preferred, and the distance of operation portion to axis is greater than the distance that leans on portion 42, is favorable to reducing the operating force, improves user experience.

As shown in fig. 2, the first elastic member 3 is connected to the wrench head and the movable jaw 2, respectively, and configured to apply a force to the movable jaw 2 away from the fixed jaw 1, and the movable jaw 2 slides on the guide groove through the guide post 7; the locking teeth 41 of the locking fastener 4 can be matched with the positioning teeth 21, the distance between adjacent tooth tips of the positioning teeth 21 is 0-2mm, the distance between adjacent tooth tips of the locking teeth 41 is 0-2mm, and when the smaller tooth tip distance is adjusted in operation, the locking fastener can be better suitable for bolts or nuts of various models.

The second elastic piece 6 is configured to apply an acting force to the locking piece 4, which is directed to the positioning tooth 21, and the locking tooth 41 is engaged with at least three teeth of the positioning tooth 21 to limit the movement of the movable jaw 2, and the more the number of the engaged teeth is, the higher the stability of the engagement between the movable jaw and the fixed jaw is, and the slippage is not easy to occur in actual operation.

Referring to fig. 3, when the movable jaw 2 moves to the farthest distance from the fixed jaw 1, the locking tooth 41 moves to the vicinity of the anti-falling boss 22, the anti-falling boss 22 is higher than a part of the positioning tooth 21, when the locking piece 4 moves to the position of the anti-falling boss 22 and stops, the anti-falling boss 22 prevents the locking piece 4 from continuing to move, and the locking tooth 41 is engaged with the positioning tooth 21 near the anti-falling boss 22, so that the movable jaw 2 can be prevented from falling off; the length of the positioning teeth 21 is not less than the maximum opening distance between the fixed jaw 1 and the movable jaw 2, in the embodiment, the length of the positioning teeth 21 is equal to the maximum opening distance between the movable jaw 2; each tooth of the positioning tooth 21 is in a non-axisymmetric pattern, and the larger angle of intersection between the edge and the bottom edge of the tooth is a right angle or an obtuse angle, so that the locking piece 4 does not need to be moved when the movable jaw 2 moves towards the fixed jaw 1. The wrench handle B has a plurality of rigid sleeves B1, in the present embodiment, there are 6 rigid sleeves B1, in other embodiments, the number of the rigid sleeves B1 may be other numbers, which is not specifically limited herein, depending on the actual situation.

While embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides an adjustable spanner, includes spanner handle and locates the spanner head of spanner handle front end, its characterized in that: the wrench head comprises a fixed jaw and a movable jaw which are oppositely arranged, and the movable jaw is provided with a positioning tooth adjacent to the wrench handle; the adjustable wrench further comprises a first elastic piece, wherein the first elastic piece is respectively connected with the wrench head and the movable jaw and is configured to apply acting force to the movable jaw away from the fixed jaw;

the adjustable wrench also comprises a locking piece, an unlocking piece abutted against the locking piece and a second elastic piece biased between the locking piece and the wrench handle, wherein the locking piece comprises a locking tooth matched with the positioning tooth, the second elastic piece is configured to apply acting force pointing to the positioning tooth to the locking piece so as to enable the locking tooth to be matched with the positioning tooth, and the unlocking piece is configured to drive the locking piece to overcome the elastic force of the second elastic piece so as to enable the locking tooth to be separated from the positioning tooth and allow the movable jaw to move relative to the fixed jaw.

2. The adjustable wrench as claimed in claim 1, wherein: the length of the positioning teeth is not less than the maximum opening distance between the fixed jaw and the movable jaw.

3. The adjustable wrench as claimed in claim 1, wherein: the unlocking piece comprises an operation part and a supporting part, wherein the operation part extends from one end, far away from the fixed jaw, of the wrench head, and the supporting part is connected with the operation part.

4. The adjustable wrench as claimed in claim 3, wherein: the unlocking piece is rotatably arranged on the head of the wrench, and the operating part and the abutting part are positioned on the opposite sides of the rotating axis.

5. The adjustable wrench according to claim 2, wherein: the distance between adjacent tooth tips of the positioning teeth is 0-2mm.

6. The adjustable wrench as claimed in claim 1, wherein: the distance between adjacent tooth tips of the locking teeth is 0-2mm.

7. The adjustable wrench according to claim 5, wherein: when the positioning teeth are matched with the locking teeth, at least three teeth are meshed with each other.

8. The adjustable wrench according to claim 2, wherein: the two ends of the positioning teeth are distributed with anti-drop bosses.

9. The adjustable wrench as claimed in claim 7, wherein: each tooth of the positioning tooth is in a non-axisymmetric pattern, and the larger angle of intersection between the edge of the tooth and the bottom edge is a right angle or an obtuse angle.

10. The adjustable wrench as claimed in claim 1, wherein: the wrench handle includes at least one solid sleeve.