CN2094424U - Rapid adjusting moveable spanner - Google Patents
Rapid adjusting moveable spanner Download PDFInfo
- Publication number
- CN2094424U CN2094424U CN 90226500 CN90226500U CN2094424U CN 2094424 U CN2094424 U CN 2094424U CN 90226500 CN90226500 CN 90226500 CN 90226500 U CN90226500 U CN 90226500U CN 2094424 U CN2094424 U CN 2094424U
- Authority
- CN
- China
- Prior art keywords
- wrench
- jaw
- moving jaw
- adjustable wrench
- chute
- 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.)
- Pending
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model mainly solves the problems of the slow regulation of the opening, the inconvenient use, the small operational reliability, etc. Of the existing adjustable wrench. The utility model is mainly used to turn the nuts and is characterized in that the user can press and push the lateral surface of slide way of the movable clamp jaw by the finger and regulate the movable wrench opening by the sliding of the movable clamp jaw directly; the clamp jaw of the movable wrench is connected with the slide way and the slideway by the connecting rods respectively, the vertical length of the connecting rods meets the requirements of the self locking condition of the movable clamp jaw that the b is not less than the c/2k, in the formula, the b is the vertical length of the connecting rods; the c is the length of the slide way of the movable clamp jaw; the k is the coefficient of sliding friction. The utility model has the characteristics of the high efficiency, good operational reliability and simple structure.
Description
The utility model is relevant instrument class engineering goods.
Existing common adjustable wrench is the wrench body by the band chute, the moving jaw of band slideway, and the worm screw that is contained on the body is formed.The adjusting of its opening is the engagement that utilizes the tooth bar of worm screw and moving jaw, points by the operator that rotary worm carries out.Utilize worm screw to pin moving jaw simultaneously.Because Worm-rack type transmission stroke is slow, the worm-drive friction loss is big, thereby efficient is very low.After spanner had used a period of time, stuck phenomenon took place in worm screw easily, promptly was difficult to regulate smoothly the folding of jaw of spanner.Because the flank of tooth of worm screw and tooth bar weares and teares easily, after both back lashes increase, cause the spanner nut that can't link closely, easily cause spanner to skid.When wrench opening was enough big, jaw of spanner just can only cause the spanner functional reliability to reduce with two face clamping nuts.
Slow for understanding the existing adjustable wrench opening governing speed of rhymed formula, and above-mentioned other defective, must remove the Worm-rack type device of the main cause that causes above-mentioned defective, replace new transmission and locking method.
The utility model is achieved through the following technical solutions.Placed restrictions on by wrench body (1) moving jaw (2) in the adjustable wrench that sheet (3) and screw (4) formed at one, jaw and chute and slideway system link into an integrated entity with connecting rod respectively.On such connector, the vertical length between the center line of jaw plane vertical line and chute and slideway meets the requirement of the condition of self-locking of moving jaw.Thereby moving jaw is adjusted to any position and all can pins voluntarily.Thereby established new locking method, created condition for reaching the quick adjustment adjustable wrench.
In this fast regulating adjustable wrench, can on said moving jaw, chute be set; On said wrench body, slideway is set; The cooperation that chute and slideway are formed is a matched in clearance.When using this spanner, operator's size that wrench opening is regulated in chute two outsides that push away moving jaw that just can directly press...with one's finger.Through measuring and calculating, the opening of existing adjustable wrench is 8--20 about second by minimum to maximum required time, and after fast regulating adjustable wrench moving jaw changes direct slip into, and its opening is minimum, and to arrive maximum required time only be that 0.5--1.5 is about second.
In this fast regulating adjustable wrench, can arrange plurality of strengthening ribs in chute housing two outsides of moving jaw, with the intensity of increase chute housing, and it is more laborsaving to make the operator regulate moving jaw.
Connecting rod cross section in this spanner can be designed to I shape, to improve stress distribution, saves metal.
Wrench body slideway end face in this spanner can be loaded onto and place restrictions on sheet, deviates from slideway to prevent moving jaw.Placing restrictions on sheet can be screwed on the slideway end face.
Wrench body of this spanner and moving jaw can be with steel manufacturings such as carbon steel or low-alloy steel.
The outer surface of this spanner can carry out chromium plating to be handled.
Below in conjunction with accompanying drawing 3, determining of the vertical length b that meets condition of self-locking between the center line of jaw plane vertical line and chute and slideway is described.
As shown in Figure 3, the effect of moving jaw chute left end top has slip frictional force f1; Wrench body is to the counter-force F1 of moving jaw; Slip frictional force f2 and the wrench body counter-force F2 to moving jaw is arranged at the right-hand member bottom; Effect has the counter-force F that turns the nut generation on the jaw of moving jaw.If meeting the vertical length of condition of self-locking is b; The chute length of moving jaw is c; The straight warp in garden, chute center is e.When spanner was pulled nut, moving jaw should not have sliding phenomenon, and promptly moving jaw should be in poised state.Following formula is then arranged:
∵∑mB＝0
∴F·（b－e／2）＋f2·e－F2·c＝0
∵∑Fx＝0 ∴F＝f1＋f2＝KF1＋KF2
In the formula: the k--sassafras coefficient that rubs that slides
∵ ∑ Fy=0 ∴ F1=F2 put in order b=c/2k
Promptly when b 〉=c/2k, moving jaw will not have sliding phenomenon.
The worm-drive that this fast regulating adjustable wrench changes existing adjustable wrench is the direct slip of moving jaw.Through measuring and calculating, can improve the operation work efficiency more than 10 times.Because after this spanner moving jaw was adjusted to any position binding nut, moving jaw promptly slippage can not take place, and this jaw of spanner all can be with four face clamping nuts on any aperture position, thereby have increased the spanner functional reliability.Because chute that jaw and volume are bigger and slideway distance zoom out, thereby this spanner is particularly suitable for narrow and small place use.This spanner has removed endless screw apparatus, and structure is more simple and reliable.Another advantage of this spanner is that its manufacturing process can be continued to use the technology and the equipment of existing adjustable wrench.
Be the drawing explanation below.
The sketch of accompanying drawing 1. the utility model basic structures
Accompanying drawing 2. the utility model remove place restrictions on sheet after F to the partial structurtes sketch
The stressed sketch of accompanying drawing 3. the utility model moving jaws
Be contained on the wrench body (1) by moving jaw shown in Figure 1 (2).Wrench body slideway end face is equipped with places restrictions on sheet (3), deviates from slideway to prevent moving jaw, places restrictions on sheet and is fixed on the wrench body by screw (4).By wrench body and moving jaw shown in Figure 1, can make by die forging equal pressure processing method.Its material can be selected #40 or similar guiding principle material such as #50 or 40Cr for use.Its specification can be with reference to the product line of existing common adjustable wrench.Be stamped to form by the available sheet metal of sheet (3) of placing restrictions on shown in Figure 1.Screw (4) can be selected suitable standard component for use.
Claims (8)
1, a kind of adjustable wrench, its body (1) one end is a regular jaw, the other end is a handle, and slidably moving jaw (2) is housed on the body.Cooperating that moving jaw (2) and wrench body (1) are formed is matched in clearance.Of the present utility model being characterised in that, said jaw and chute and slideway link into an integrated entity with connecting rod respectively; Vertical length between the center line of said jaw plane vertical line and chute and slideway meets the requirement of the condition of self-locking of moving jaw.Condition of self-locking is b 〉=c/2K.In the formula: b--meets the vertical length of condition of self-locking requirement; The length of c--moving jaw chute; The k--coefficient of sliding friction.
According to the adjustable wrench of claim 1, it is characterized in that 2, said moving jaw has chute.
According to the adjustable wrench of claim 2, it is characterized in that 3, said chute two outsides are furnished with reinforcement.
4, according to the adjustable wrench of claim 1, it is characterized in that having slideway on the said body.
According to the adjustable wrench of claim 1, it is characterized in that 5, the cross section of connecting rod is I-shaped.
According to the adjustable wrench of claim 4, it is characterized in that 6, said body slideway end mask has the screw of equipped screw (4).
According to the adjustable wrench of claim 1, it is characterized in that 7, the material of said wrench body and moving jaw is steel such as carbon steel or low-alloy steel.
According to the adjustable wrench of claim 1, it is characterized in that 8, said spanner outer surface is handled through Plating chromium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90226500 CN2094424U (en) | 1990-12-23 | 1990-12-23 | Rapid adjusting moveable spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90226500 CN2094424U (en) | 1990-12-23 | 1990-12-23 | Rapid adjusting moveable spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2094424U true CN2094424U (en) | 1992-01-29 |
Family
ID=4903738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90226500 Pending CN2094424U (en) | 1990-12-23 | 1990-12-23 | Rapid adjusting moveable spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2094424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109466739A (en) * | 2018-11-02 | 2019-03-15 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aircraft big load opens section Tiebar structure and application method |
-
1990
- 1990-12-23 CN CN 90226500 patent/CN2094424U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109466739A (en) * | 2018-11-02 | 2019-03-15 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aircraft big load opens section Tiebar structure and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |