CN108789240B - Adjustable wrench - Google Patents
Adjustable wrench Download PDFInfo
- Publication number
- CN108789240B CN108789240B CN201810403719.8A CN201810403719A CN108789240B CN 108789240 B CN108789240 B CN 108789240B CN 201810403719 A CN201810403719 A CN 201810403719A CN 108789240 B CN108789240 B CN 108789240B
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- CN
- China
- Prior art keywords
- contact surface
- fastener
- adjustable wrench
- screw rod
- jaw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/10—Spanners; Wrenches with adjustable jaws
- B25B13/12—Spanners; Wrenches with adjustable jaws the jaws being slidable
- B25B13/16—Spanners; Wrenches with adjustable jaws the jaws being slidable by screw or nut
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention provides an adjustable wrench, and belongs to the technical field of hardware tools. The jaw size can be directly adjusted by arranging the first screw rod and the first screw hole which are matched with each other for use, so that fasteners with different sizes can be adapted, and the operation is convenient; the first torsion head is arranged, so that the jaw can clamp the fastener more tightly; simultaneously through setting up first radial recess at first contact surface, on the one hand can scrape into first radial recess with the impurity such as iron rust on fastener surface, profit inside, make keeping silent and pressing from both sides the fastener tighter, the slippage is more difficult, on the other hand divides into four bibliographic categories with the first contact surface of first fore-set, can guarantee to have two bibliographic categories at least and tightly push up the both sides in the fastener side respectively, transmit the moment of torsion better, even some impurity of this side still exist, keep silent and fastener not have too much activity, further avoided adjustable wrench slippage in the use, with the fastener side, the user is injured has also effectively been avoided.
Description
Technical Field
The invention belongs to the technical field of hardware tools, and particularly relates to an adjustable wrench.
Background
In daily operation, a monkey wrench, also called as an adjustable wrench, is often used, and is a tool with adjustable wrench jaw size and used for screwing or unscrewing angular screws or nuts and other fasteners. When adopting current adjustable spanner to dismantle the nut, because fasteners such as nut can appear self corrosion, the circumstances such as immersion oil or immersion water in the use, when dismantling it, because the separation of rust, oil, water, adjustable spanner itself adopts turbine and rack complex form to clinch the nut in addition, its movable jaw often is difficult to press from both sides the nut completely, often has certain activity, causes adjustable spanner easy slippage when dismantling or screwing up the nut hard, causes the nut to slip, the problem of the arm of gouging even.
Disclosure of Invention
The invention aims to provide an adjustable wrench, which aims to solve the technical problem that fasteners such as nuts are difficult to clamp completely by the adjustable wrench in the prior art, so that the nuts are easy to slip.
In order to achieve the purpose, the invention adopts the technical scheme that: the adjustable wrench comprises a wrench body, wherein the wrench body comprises a handle part and a first working part positioned at one end of the handle part, the first working part is provided with a first fixed claw and a second fixed claw, and the first fixed claw, the second fixed claw and the wrench body are matched to form a first jaw for accommodating a fastener; the first working part also comprises a first screw rod, the first fixing claw is provided with a first screw hole which penetrates through the first fixing claw and is communicated with the inside and the outside of the first jaw, and the first screw rod and the first screw hole are matched to form a thread pair structure; a first torsion head is fixedly arranged at the outer end of the first screw rod; a first top column is arranged at the inner end of the first screw rod, a first contact surface used for being connected with the fastening piece in a propping mode is arranged on the first top column, and a first radial groove penetrating through the first contact surface is formed in the first contact surface; the second fixing claw is provided with a second contact surface used for being abutted against the fastening piece.
Further, in the above adjustable wrench, a first expansion cavity is provided at a bottom of the first radial groove, and the first expansion cavity penetrates through the bottom of the first radial groove.
Further, in the adjustable wrench, a third support pillar is fixedly disposed on an inner side of the second fixing claw, the second contact surface is an inner side surface of the third support pillar, a groove penetrating through the second contact surface is disposed on the second contact surface, and a main axis of the groove is perpendicular to a main axis of the handle portion.
Further, in the adjustable wrench, a second expansion cavity is arranged at the bottom of the groove, and the second expansion cavity penetrates through the bottom of the groove.
Furthermore, in the adjustable wrench, the first working portion further includes a second screw, the second fixing claw is provided with a second screw hole penetrating through the second fixing claw and communicating with the inside and the outside of the first jaw, and the second screw hole are matched to form a thread pair structure; a second twisting head is fixedly arranged at the outer end of the second screw rod; the inner end of the second screw rod is provided with a second top column, the second contact surface is the inner side surface of the second top column 34, and a second radial groove penetrating through the first contact surface is formed in the second contact surface.
Further, in the adjustable wrench, the first ejection column is rotatably connected to the first screw, and the rotating shaft is perpendicular to the first contact surface.
Further, in the adjustable wrench, a first rotating rod is arranged on a side edge of the first ejection column.
Further, in the adjustable spanner, a concave hole is formed in the first ejection column, and the first rotating rod is connected with the first ejection column in an inserting mode through the concave hole.
Further, in the adjustable wrench, the second contact surface is provided with anti-slip threads.
Further, in the adjustable wrench, the wrench body further includes a second working portion located at the other end of the handle portion, and the second working portion is provided with a second jaw for accommodating the fastener.
The adjustable wrench provided by the invention has the beneficial effects that: compared with the prior art, the jaw size can be directly adjusted by arranging the first screw rod and the first screw hole which are matched with each other for use, so that fasteners with different sizes can be adapted, and the operation is convenient; the first torsion head is arranged, so that the jaw can clamp the fastener more tightly by utilizing the lever principle; meanwhile, the first radial groove is arranged on the first contact surface, on one hand, the first radial groove can play a role of a scraper, when the first ejection column rotates along with the first screw rod, impurities such as rust and oil and water on the surface of the fastener are scraped into the first radial groove, so that the fastener is clamped more tightly by the jaw and is not easy to slip, on the other hand, the first contact surface of the first ejection column is divided into four parts by the first radial groove, no matter what angle the first radial groove rotates, at least two parts can be guaranteed to tightly abut against the two sides of the side surface of the fastener respectively, torque is transmitted better, even if some impurities on the side surface still exist, the jaw and the fastener do not have too much activity, the slippage of the adjustable wrench in the using process is further avoided, the fastener is square, and the user is effectively prevented from being injured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic front view of a spanner wrench according to an embodiment of the present invention;
FIG. 2 is a schematic right-view structural diagram of a first contact surface of the first support pillar in the embodiment of FIG. 1;
FIG. 3 is a schematic structural diagram of a front view of a part of a structure of an adjustable wrench according to another embodiment of the present invention;
fig. 4 is a schematic front view of a spanner wrench according to another embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
10-a wrench body; 11-a handle portion; 12-a first working portion; 13-a second working portion;
20-a first stationary jaw;
21-a first screw hole; 22-a first screw; 23-a first twist head; 24-a first top post;
25-a first radial groove; 26-a first enlarged lumen; 27-a first turning lever;
30-a second stationary jaw;
31-a second screw hole; 32-a second screw; 33-a second twist head; 34-a second top pillar;
35-a second radial groove; 36-a third top pillar; 37-a trench; 38-a second enlarged lumen; 39-anti-skid lines;
40-a first jaw; 50-a second jaw; 60-fastener.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 and fig. 2, an adjustable wrench according to the present invention will now be described. The adjustable wrench comprises a wrench body 10, wherein the wrench body 10 comprises a handle part 11 and a first working part 12 positioned at one end of the handle part 11, the first working part 12 is provided with a first fixed claw 20 and a second fixed claw 30, and the first fixed claw 20, the second fixed claw 30 and the wrench body 10 are matched to form a first jaw 40 for accommodating a fastener 60; the first working portion 12 further comprises a first screw 22, the first fixing claw 20 is provided with a first screw hole 21 penetrating through the first fixing claw 20 and communicating the inside and the outside of the first jaw 40, and the first screw 22 and the first screw hole 21 are matched to form a thread pair structure; a first torsion head 23 is fixedly arranged at the outer end (i.e. the end far away from the first jaw 40) of the first screw 22; a first top pillar 24 is arranged at the inner end (i.e. the end positioned in the first jaw 40) of the first screw 22, the first top pillar 24 is provided with a first contact surface for abutting against the fastener 60, and the first contact surface is provided with a first radial groove 25 penetrating through the first contact surface; the second stationary jaw 30 is provided with a second contact surface for abutting against the fastener 60. The first radial grooves 25 are grooves having a radial structure on the first contact surface, and preferably cross grooves or cross grooves.
When the wrench is used, the first screw 22 is adjusted by twisting the twisting head 23, so that the first support pillar 24 supports against the fastener 60, and then the fastener 60 can be detached and installed by pulling the handle part 11 of the wrench body 10.
Compared with the prior art, the adjustable wrench provided by the invention has the advantages that the size of the jaw can be directly adjusted by arranging the first screw rod 22 and the first screw hole 21 which are matched with each other for use, so that the adjustable wrench can be adapted to fasteners 60 with different sizes, and is convenient to operate; the first torsion head 23 is arranged, so that the jaw can clamp the fastener 60 more tightly by utilizing the lever principle; by providing the first radial groove 25 at the first contact surface, the first radial groove 25 can function as a scraper on the one hand, when the first support pillar 24 rotates along with the first screw 22, the impurities such as rust, oil and water on the surface of the fastening member 60 are scraped into the first radial groove 25, so that the fastening member 60 is clamped by the jaw and is not easy to slip, on the other hand, the first radial groove 25 divides the first contact surface of the first support pillar 24 into four parts, and the first radial groove 25 can ensure that at least two parts are respectively and tightly propped against two sides of the side surface of the fastening member 60 no matter what angle the first radial groove 25 rotates, so as to better transmit torque, even if some impurities on the side surface still exist, the jaw and the fastener 60 do not have too much movement, the slip of the adjustable wrench in the using process is further avoided, the fastener 60 is slid, and the injury of a user is also effectively avoided.
Further, referring to fig. 3 and fig. 4 together, as an embodiment of the adjustable wrench according to the present invention, a first expanding cavity 26 is disposed at a bottom of the groove of the first radial groove 25, and the first expanding cavity 26 penetrates through the bottom of the groove of the first radial groove 25. The first expansion cavity 26 can contain more impurities such as rust, oil and water, the first expansion cavity 26 penetrates through the bottom of the first radial groove 25, equivalently, a through hole is formed in the bottom of the first radial groove 25, and the impurities such as the excessive rust and the oil and water can be discharged from the first expansion cavity 26 in the using process.
Further, referring to fig. 3, as a specific embodiment of the adjustable wrench according to the present invention, a third supporting pillar 36 is fixedly disposed on an inner side (i.e., a side located in the first jaw 40) of the second fixing jaw 30, the second contact surface is an inner side surface of the third supporting pillar 36 (i.e., a surface where the third supporting pillar 36 abuts against the fastening member 60), a groove 37 is disposed on the second contact surface, and a main axis of the groove 37 is perpendicular to a main axis of the handle portion 11. Under the extrusion effect, the effect that impurity such as iron rust, profit are held in the slot 37 also can play, and the slot 37 is divided into two parts with the second contact surface on the third fore-set 36 simultaneously, and these two parts push up the both sides in fastener 60 side respectively, can transmit the moment of torsion better.
Further, referring to fig. 3, as a specific embodiment of the adjustable wrench provided by the present invention, a second expansion cavity 38 is disposed at a bottom of the groove 37, and the second expansion cavity 38 penetrates through the bottom of the groove 37. The second enlarged chamber 38 functions similarly to the first enlarged chamber 26, and can accommodate more impurities such as rust, oil and water, and facilitate the discharge of the impurities.
Further, referring to fig. 4, as a specific embodiment of the adjustable wrench according to the present invention, the first working portion 12 further includes a second screw 32, the second fixing claw 30 is provided with a second screw hole 31 penetrating through the second fixing claw 30 and communicating the inside and the outside of the first jaw 40, and the second screw 32 and the second screw hole 31 cooperate to form a screw pair structure; a second twisting head 33 is fixedly arranged at the outer end of the second screw rod 32, namely the end far away from the first jaw 40; the inner end of the second screw 32, that is, the end located in the first jaw 40, is provided with a second support pillar 34, the second contact surface is the inner side surface of the second support pillar 34, and the second contact surface is provided with a second radial groove 35 penetrating through the second contact surface. The second stationary jaw 30 may be symmetrically disposed with respect to the first stationary jaw 20 to facilitate better gripping of the fastener 60.
Further, referring to fig. 3 and fig. 4 together, as an embodiment of the adjustable wrench according to the present invention, the first prop 24 is rotatably connected to the first screw 22, and the rotating shaft is perpendicular to the first contact surface, so as to prevent the first prop 24 from scraping the fastening member 60 too much, and facilitate the adjustment of the direction of the first radial groove 25. If the second fixed jaw 30 is arranged symmetrically to the first fixed jaw 20, the second twisting head 33 may be fixedly connected to the second screw 32, or may be rotatably connected thereto.
Further, referring to fig. 3 and fig. 4, as an embodiment of the adjustable wrench according to the present invention, a first rotating rod 27 is disposed on a side of the first top pillar 24. The first rotating rod 27 can drive the first ejection column 24 to rotate, so that the first ejection column 24 can be conveniently driven to scrape the fastener 60, the first ejection column 24 can be conveniently controlled to avoid overlarge scraping on the fastener 60, and meanwhile, the direction of the second radial groove 35 on the first ejection column 24 can also be conveniently controlled. The second fixing claws 30 can also be provided according to this structure.
Further, referring to fig. 1 to fig. 3, as an embodiment of the adjustable wrench according to the present invention, a concave hole is formed on the first top pillar 24, and the first rotating rod 27 is inserted into the first top pillar 24 through the concave hole, so as to facilitate the detachment and installation of the first rotating rod 27. The second fixing claws 30 can also be provided according to this structure.
Further, referring to fig. 1, as an embodiment of the adjustable wrench according to the present invention, the second contact surface is provided with an anti-slip pattern 39 to prevent the fastener 60 from slipping off.
Further, referring to fig. 4, as an embodiment of the adjustable wrench according to the present invention, the wrench body 10 further includes a second working portion 13 located at the other end of the handle portion 11, and the second working portion 13 is provided with a second jaw 50 for accommodating a fastener 60. The second working portion 13 may be an existing spanner wrench or fixed spanner, or may be an spanner wrench having the same structure as the first working portion 12 but different specifications, so as to be conveniently used in cooperation with the first working portion 12.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides an adjustable spanner, includes the spanner body, the spanner body includes handle portion and is located the first work portion of handle portion one end, be equipped with first stationary dog and second stationary dog on the first work portion, first stationary dog the second stationary dog and the cooperation of spanner body forms the first keep silent that is used for holding the fastener, its characterized in that:
the first working part also comprises a first screw rod, the first fixing claw is provided with a first screw hole which penetrates through the first fixing claw and is communicated with the inside and the outside of the first jaw, and the first screw rod and the first screw hole are matched to form a thread pair structure;
a first torsion head is fixedly arranged at the outer end of the first screw rod;
a first top column is arranged at the inner end of the first screw rod, a first contact surface used for being connected with the fastening piece in a propping mode is arranged on the first top column, and a first radial groove penetrating through the first contact surface is formed in the first contact surface;
the second fixing claw is provided with a second contact surface used for being abutted against the fastening piece;
the first top column is rotationally connected with the first screw rod, and the rotating shaft is vertical to the first contact surface;
and a first rotating rod is arranged on the side edge of the first top column.
2. The adjustable wrench of claim 1, wherein: the groove bottom of the first radial groove is provided with a first expansion cavity, and the first expansion cavity penetrates through the groove bottom of the first radial groove.
3. The adjustable wrench of claim 1, wherein: the inner side of the second fixing claw is fixedly provided with a third support pillar, the second contact surface is the inner side surface of the third support pillar, a groove penetrating through the second contact surface is arranged on the second contact surface, and the main axis of the groove is perpendicular to the main axis of the handle part.
4. The adjustable wrench of claim 3, wherein: and a second expansion cavity is arranged at the bottom of the groove and penetrates through the bottom of the groove.
5. The adjustable wrench of claim 1, wherein: the first working part also comprises a second screw rod, the second fixing claw is provided with a second screw hole which penetrates through the second fixing claw and is communicated with the inside and the outside of the first jaw, and the second screw rod and the second screw hole are matched to form a thread pair structure; a second twisting head is fixedly arranged at the outer end of the second screw rod; the inner end of the second screw rod is provided with a second top column, the second contact surface is the inner side surface of the second top column, and a second radial groove penetrating through the second contact surface is formed in the second contact surface.
6. The adjustable wrench of claim 1, wherein: be equipped with the shrinkage pool on the first fore-set, first pivot pole passes through the shrinkage pool with first fore-set grafting.
7. The adjustable wrench of claim 1, wherein: and the second contact surface is provided with anti-skid grains.
8. The adjustable wrench of claim 1, wherein: the wrench body further comprises a second working part positioned at the other end of the handle part, and the second working part is provided with a second jaw for accommodating the fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403719.8A CN108789240B (en) | 2018-04-28 | 2018-04-28 | Adjustable wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403719.8A CN108789240B (en) | 2018-04-28 | 2018-04-28 | Adjustable wrench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108789240A CN108789240A (en) | 2018-11-13 |
| CN108789240B true CN108789240B (en) | 2020-04-28 |
Family
ID=64093089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810403719.8A Expired - Fee Related CN108789240B (en) | 2018-04-28 | 2018-04-28 | Adjustable wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108789240B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0852990A1 (en) * | 1997-01-14 | 1998-07-15 | Black & Decker Inc. | Clamp for a power tool |
| CN2317050Y (en) * | 1997-08-02 | 1999-05-05 | 申志喜 | Adjustable spanner |
| DE102009022013A1 (en) * | 2009-05-19 | 2010-11-25 | Bernd Siegmund | Variable clamping tool |
| CN202684794U (en) * | 2012-07-09 | 2013-01-23 | 李天勇 | Cushion block wrench |
| CN204221637U (en) * | 2014-11-12 | 2015-03-25 | 武汉纵能机械制造有限公司 | A kind of adjustable type bench vice |
| CN105121097A (en) * | 2013-08-06 | 2015-12-02 | 贝尔恩德·西格蒙德 | Clamping tool |
| CN206475101U (en) * | 2017-02-07 | 2017-09-08 | 东莞沃昌金属制品有限公司 | A kind of adjustable device for screwing up of fastening bolt prestressing force |
| CN206717731U (en) * | 2017-03-22 | 2017-12-08 | 天津鑫畅兴科技有限公司 | A kind of multifunctional wrench |
| CN207104756U (en) * | 2017-07-29 | 2018-03-16 | 山西汾西矿业（集团）有限责任公司 | Monkey wrench |
-
2018
- 2018-04-28 CN CN201810403719.8A patent/CN108789240B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0852990A1 (en) * | 1997-01-14 | 1998-07-15 | Black & Decker Inc. | Clamp for a power tool |
| CN2317050Y (en) * | 1997-08-02 | 1999-05-05 | 申志喜 | Adjustable spanner |
| DE102009022013A1 (en) * | 2009-05-19 | 2010-11-25 | Bernd Siegmund | Variable clamping tool |
| CN202684794U (en) * | 2012-07-09 | 2013-01-23 | 李天勇 | Cushion block wrench |
| CN105121097A (en) * | 2013-08-06 | 2015-12-02 | 贝尔恩德·西格蒙德 | Clamping tool |
| CN204221637U (en) * | 2014-11-12 | 2015-03-25 | 武汉纵能机械制造有限公司 | A kind of adjustable type bench vice |
| CN206475101U (en) * | 2017-02-07 | 2017-09-08 | 东莞沃昌金属制品有限公司 | A kind of adjustable device for screwing up of fastening bolt prestressing force |
| CN206717731U (en) * | 2017-03-22 | 2017-12-08 | 天津鑫畅兴科技有限公司 | A kind of multifunctional wrench |
| CN207104756U (en) * | 2017-07-29 | 2018-03-16 | 山西汾西矿业（集团）有限责任公司 | Monkey wrench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108789240A (en) | 2018-11-13 |
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Granted publication date: 20200428 |