CN2449878Y

CN2449878Y - Adjusting device of improved ratchet wrench

Info

Publication number: CN2449878Y
Application number: CN 00255174
Authority: CN
Inventors: 谢智庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-17
Filing date: 2000-11-17
Publication date: 2001-09-26
Anticipated expiration: 2010-11-17

Abstract

The utility model relates to an adjusting device of an improved one way ratchet wrench. A ratchet gear wheel is arranged in the inner edge of the head part of one end of the spanner main body, and one side of the head part is provided with braking rod which is provided with a cross slot and is engaged with the ratchet gear wheel. The upper surface of the spanner main body is provided with a vertical and penetrative shifting slot of the cross slot, and the shifting slot is used for being penetrated with a T-shaped adjustment member to lock and connect with the braking rod. So the braking rod is driven to do horizontal displacement by the adjustment member, and the engagement direction of the ratchet gear wheel can be conveniently changed. The opening of the cross slot is sheathed and sealed with a hole cover which is used for forming an enclosed space to prevent dust or foreign matters from permeating.

Description

The adjusting device of improved unidirectional blocking spanner

The utility model relates to a kind of improved unidirectional blocking spanner, particularly about a kind of adjusting device of improved unidirectional blocking spanner.

Since the human own civilization, hand-held tool just occupies a tiny space, and wherein spanner promptly is an example, and the function of use of spanner is for now industry development indispensable competent assistant especially.The pattern of spanner, kind present multiple different variation according to the purposes function, as combination wrench, double offset ring spanner, ratchet spanner, monkey wrench.Wherein, Ratcheting one-way braking wrench device, as shown in Figure 5, mainly be that a ratchet-gear wheel 70 is placed in the wrench body 80 1 ends medial margin of head 81 in the form of a ring, make itself and a fixed pawl 85 that inserts by head 81 side cross-drilled holes 82 be engagement mutually, and this fixed pawl 85 forms several location skewed slots 86 in a side that differs from this engagement, is to be subjected to one for steel ball 871 location of protruding of pulling, elastomer 87 top contact, and makes fixed pawl 85 and ratchet-gear wheel 70 engagements.

But this fixed pawl 85 is the location engagement, the external end edge of end is obviously to protrude from wrench body 80 outsides in addition, not only cause fixed pawl 85 to carry out beyond the suitable inconvenience of operating process of this conversion blocking direction, if and spanner runs into the space of pulling when narrow and small, the fixed pawl 85 of this protrusion is easy to contact with foreign object interference, can't carry out switch operation to ratchet-gear wheel 70, cause the inconvenience of operating; Again, because the cross-drilled hole 82 of wrench body 81 is the kenels for running through, the opening that communicates that its both sides form makes dust, thin thing or moisture infiltrate easily, and folder stagnates between fixed pawl 85 and ratchet-gear wheel 70 engagements, and makes the fixed pawl 85 and the relation of ratchet-gear wheel 70 engaged transmission cause harmful effect.

The purpose of this utility model is: a kind of adjusting device of improved unidirectional blocking spanner is provided, and it can make things convenient for the direction of ratchet-gear wheel conversion blocking, can avoid dust or foreign material to infiltrate again.

For achieving the above object, the technical solution of the utility model is: the adjusting device that a kind of improved unidirectional blocking spanner is provided, one wrench body is provided with a toroidal head portion, head one side is equipped with a fixed pawl, fixed pawl one side is provided with tooth portion with the engagement ratchet-gear wheel, fixed pawl is differing from another side-line of tooth portion by the steel ball elastic contact, its characteristics are: this head is laterally established a translot that supplies fixed pawl to pack in side, be provided with a port lid that can seal opening at the opening part of translot one end, and, wrench body is provided with a shape of growing crosswise that vertically communicates translot and stirs groove, and the aforementioned shape of growing crosswise of stirring groove is the direction that parallel fixed pawl moves; One is threaded onto the transfer part of stirring groove, and this transfer part is a T-shaped bar, and horizontal ends is a pulling part, and vertical end is to penetrate to stir groove and fastening screw rod body in conjunction with fixed pawl, and this pulling part is exposed to stirs the outer position with the operation fixed pawl of groove.

By above-mentioned technical scheme, the utlity model has following advantage:

1, the utlity model has the effect of handled easily.Transfer part of the present utility model links fixedly fixed pawl, and adjustment part is exposed to lateral surface, transfers part and just can directly drive the fixed pawl displacement when stirring, and guarantees that fixed pawl can evagination and generate interference with foreign object, and the benefit of more convenient operation is provided; And the direction of adjustment mode handled easily conversion ratchet-gear wheel of the present utility model blocking, as long as left and right horizontal promotes adjustment part.

2, the utility model is made as nonpenerative groove shape with the translot of Wrench head side, see through port lid again in the last capping of opening, can effectively avoid dust, foreign material or moisture to infiltrate spanner inside, make foreign material can clamping stagnation in the flank of tooth of ratchet-gear wheel and fixed pawl, the engaged transmission of guaranteeing both is smooth and easy, make the spanner service property (quality) good, increase service life.

Further specify device characteristic of the present utility model and purpose below in conjunction with accompanying drawing.

Brief Description Of Drawings:

Fig. 1 is a three-dimensional appearance schematic diagram of the present utility model;

Fig. 2 is an element exploded perspective view of the present utility model;

Fig. 3 looks generalized section on of the present utility model;

Fig. 4 is a side-looking generalized section of the present utility model; And

Fig. 5 looks generalized section on traditional.

See also Fig. 1～4, in the preferred embodiment shown in the figure, basically, one wrench body 10 is provided with a toroidal head portion 11, head 11 inside are endoporus 111, head 11 1 sides are equipped with a fixed pawl 30, the tooth portion 31 of fixed pawl 30 is that the tooth portion 21 with ratchet-gear wheel 20 is meshing with each other, and utilize the C type to buckle 65 and buckle and be located at a ring cowling 60 outsides, make ring cowling 60 utilize the C type to buckle 65 and buckle the annular groove that is butted on head 11 endoporus 111 (among the figure not label), ending ratchet-gear wheel 20 in order to envelope drops, described fixed pawl 30 differ from tooth portion 31 opposite sides be provided with two the location skewed slots 32, still the ammunition feed gonosome 40 1 ends tops steel ball 34 that protrudes of pulling contacts the location, makes the fixed pawl 30 can a left side, the position of the conversion that moves right location, and then the direction of change ratchet-gear wheel 20 blockings.Its characteristics are:

These fixed pawl 30 middle positions are provided with a screw 33;

The translot 12 of head 11 sides is to be made as a groove shape that does not run through, wrench body 10 is provided with a shape of growing crosswise that vertically communicates translot 12 middle section positions and stirs groove 13, the shape of growing crosswise of stirring groove 13 is directions that parallel fixed pawl 30 moves, this stirs groove 13 is to transfer part 50 for one to install and go into, this transfer part 50 is one closely to be T font bar, horizontal ends is to be a pulling part 51, vertical end is the screw rod body 52 of small screw shape, penetrate and be anchored in the screw 33 of fixed pawl 30 by stirring groove 13 by stirring transfer part 50 screw rod bodies 52, pulling part 51 is exposed to be stirred outside the groove 13, make transfer part 50 affect fixed pawl 30 displacements, make things convenient for conversion fixed pawl 30 and ratchet-gear wheel 20 position engaged;

In addition, be equipped with a port lid 35 in these translot 12 1 end opening places, this port lid 35 can utilize the mode spiral shell of screw lock solid, makes translot 12 inner edges form an enclosure space, uses and avoids dust, foreign material or moisture to infiltrate.

Therefore, when wanting to change ratchet-gear wheel 20 rotation directions when using spanner, as long as transfer part 50 to stir about finger, just can directly drive fixed pawl 30 horizontal displacements, promptly drive fixed pawl 30 conversion should with tooth portion 31 positions of ratchet-gear wheel 20 engagement, and the positioning states of conversion still is to see through fixed pawl 30 location skewed slots 32, because being subjected to elastomer 40 elastic-restoring forces with steel ball 45 rostellums, and blocking is positioned the location skewed slot 32 of correspondence position, the position after definite replacing direction.

By aforesaid explanation as can be known, the utility model utilizes above-mentioned characteristic member, be that utilization is transferred stirring of part 50 and driven fixed pawl 30 displacements, has easy to operate effect, simultaneously, translot 12 utilizes port lid 35 to seal and form enclosure space at opening, can prevent effectively that dust from entering, do not cause the engagement of dust assorted bits interference fixed pawl 30 and ratchet-gear wheel 20, the service life that keeps wrench device.

Claims

1. the adjusting device of an improved unidirectional blocking spanner, one wrench body is provided with a toroidal head portion, and head one side is equipped with a fixed pawl, and fixed pawl one side is provided with tooth portion with the engagement ratchet-gear wheel, fixed pawl is differing from another side-line of tooth portion by the steel ball elastic contact, it is characterized in that:

This head is laterally established a translot that supplies fixed pawl to pack in side, be provided with a port lid that can seal opening at the opening part of translot one end, and wrench body is provided with a shape of growing crosswise that vertically communicates translot and stirs groove, and the aforementioned shape of growing crosswise of stirring groove is the direction that parallel fixed pawl moves;

One is threaded onto the transfer part of stirring groove, and this transfer part is a T-shaped bar, and horizontal ends is a pulling part, and vertical end is to penetrate to stir groove and fastening screw rod body in conjunction with fixed pawl, and this pulling part is exposed to stirs the outer position with the operation fixed pawl of groove.

2. the adjusting device of improved unidirectional blocking spanner as claimed in claim 1 is characterized in that:

Described port lid is the inwall that screw lock is fixed in translot.

3. the adjusting device of improved unidirectional blocking spanner as claimed in claim 2 is characterized in that:

Described fixed pawl is provided with screw, transfers the corresponding screw of screw rod body of part and fastening locking.