CN1978145A

CN1978145A - Tool head pivot positioning structure

Info

Publication number: CN1978145A
Application number: CN 200510122209
Authority: CN
Inventors: 谢智庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-06
Filing date: 2005-12-06
Publication date: 2007-06-13

Abstract

A head pivot positioning structure for a tool, comprising: a wrench body, one end of which is provided with a fixing unit; the first joint unit is a fixed unit fixed on the wrench body and consists of a first clamping unit and a column body; a head body, one side of which is provided with a second joint unit which is jointed with the first joint unit and can be mutually combined and separated, the second joint unit is provided with an opening which is communicated with the head body, a second clamping unit is arranged in the opening, an annular space is arranged above the second clamping unit, the annular space is provided with an inner wall, one side of the inner wall of the annular space relative to the wrench body is provided with a hole, and the hole penetrates to the inside of the head body for a proper distance for an elastic element and a blocking element to be arranged. The invention increases the force application range of a user when the user locks the workpiece in a rotating way, thereby avoiding the defect that the user can lock the workpiece only by repeatedly reciprocating the wrench body.

Description

The head pivot-swing location structure of instrument

Technical field

The present invention relates to a kind of head pivot-swing location structure of instrument.

Background technology

Existing Wrench head location structure comprises as shown in Figure 6: first 7 and one head body 8 of a wrench body 6, one recessed order.

This recessed order unit 7 is ends of being located at this wrench body 6, and has a through hole 72 in the bottom surface 71 of depression, being communicated to the suitable distance of this wrench body 6, and inserts for a spring 73 and a steel ball 74.

This head body 6 has protruding order unit's 61 confessions and first 7 relative bondings of this recessed order, relending by a pin 62 articulates the recessed order of this protruding order first 61 and this unit 7 mutually, and be provided with several profile of tooth sections 611 in first 61 outer rims of this protruding order, supply above-mentioned spring 73 these steel balls 74 of pushing and pressing to insert and fasten, and then fix this head body 8.

Above-mentioned head body 8 is fixed because of being subjected to these spring 73 pushing and pressing steel balls 74, but the elastic force of this spring 73 is limited, when the user is using in the operation, because of pulling the application of force when big, this steel ball 74 just can be recessed the profile of tooth section 611 in this head body 8, and cause this head body 8 to rotate voluntarily, then cause user's danger in use easily.

In addition, because this head body 8 is laterally to articulate with this wrench body 6, cause this head body 8 only at this wrench body pivot pendulum about in the of 6, if when the user when small space uses, adjust the radial angle of this head body 8 and this wrench body 6 only, and can't increase axial angle, and then can't increase the application of force scope of this wrench body 6, therefore, then need repeatedly move back and forth the workpiece that just can lock, historical facts or anecdotes has improved necessity in addition.

Summary of the invention

Technical problem underlying to be solved by this invention is, overcome the above-mentioned defective that prior art exists, and provide a kind of head pivot-swing location structure of instrument, it is an intensity of utilizing two profile of tooth sections to engage mutually, when user's strength is excessive, also can not produce the problem of deviating from, and can increase the user and revolving the application of force scope of lock during workpiece, and then avoid the user need repeatedly move back and forth just can the lock shortcoming of workpiece of this wrench body.

The technical solution adopted for the present invention to solve the technical problems is:

A kind of head pivot-swing location structure of instrument is characterized in that, comprising: a wrench body, and an end has a fixed cell; One first joint unit is the fixed cell that is fixed in this wrench body, and this first joint unit is made up of one first an engaging unit and a cylinder; One head body, the one side has one second joint unit, be to engage with above-mentioned first joint unit, and both can mutually combine and break away from, this second joint unit has an opening, this opening is to connect this head body, be provided with one second engaging unit in this opening, the top of this second engaging unit is provided with an annular space, this annular space has an inwall, and the inwall of this annular space has a hole with respect to a side of this wrench body, and this hole stretches through to the inner suitable distance of head body, inserts for a flexible member and a barrier element.

The head pivot-swing location structure of aforesaid instrument, wherein fixed cell is the height that is lower than this wrench body.

The head pivot-swing location structure of aforesaid instrument, wherein the first engaging unit is the profile of tooth section that becomes to match with the second engaging unit, makes both snap-in location mutually.

The head pivot-swing location structure of aforesaid instrument, wherein first of first junction surface engaging unit is one to have the cylinder of external tooth form section, and the second engaging unit at described second junction surface is for to engage the internal tooth form section that the unit fastens with first of this first joint unit.

The head pivot-swing location structure of aforesaid instrument, wherein be equipped with a groove on the position of the cylinder of first joint unit with respect to this head body opening, engage with second of this head body in the first engaging unit of this first joint unit for described barrier element and insert when the unit engages mutually.

The head pivot-swing location structure of aforesaid instrument, wherein the cylinder external diameter of first joint unit is the external diameter less than the described first engaging unit, when the first engaging unit of this first joint unit engages the unit when breaking away from mutually with second of described head body, this second can rotate when engaging cell moving to the groove of this cylinder.

The head pivot-swing location structure of aforesaid instrument, wherein the cylinder middle position of first joint unit is axially arranged with a hole, this hole is the first engaging appropriate location, unit that is communicated to this cylinder below, for retaining element locking, be provided with a limiting element between this retaining element and this cylinder, when the first engaging unit of this first joint unit engages the unit when breaking away from mutually with second of this head body, this head body can be not whole not be deviate from, limit the scope of activities of this head body.

The head pivot-swing location structure of aforesaid instrument, wherein retaining element is a screw.

The head pivot-swing location structure of aforesaid instrument, wherein limiting element is a packing ring.

The head pivot-swing location structure of aforesaid instrument, wherein flexible member is a spring, described barrier element is a steel ball.

The invention has the beneficial effects as follows, it is an intensity of utilizing two profile of tooth sections to engage mutually, when user's strength is excessive, also can not produce the problem of deviating from, and can increase the user and revolving the application of force scope of lock during workpiece, and then avoid the user need repeatedly move back and forth just can the lock shortcoming of workpiece of this wrench body.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is an exploded perspective schematic diagram of the present invention

Fig. 2 is a vertical view of the present invention

Fig. 3 is a head swing schematic diagram of the present invention

Fig. 4 partial sectional view that to be head body of the present invention engage mutually with wrench body

Fig. 5 is the partial sectional view that head body of the present invention and wrench body break away from mutually

Fig. 6 is the exploded perspective schematic diagram of existing structure

The prior art part

The protruding order of wrench body 6 unit 61

Profile of tooth section 611 pins 62

First 7 bottom surfaces 71 of recessed order

Through hole 72 springs 73

Steel ball 74 head body 8

Part of the present invention

Wrench body 1 fixed cell 11

First joint unit, 2 first engaging unit 21

Cylinder 22 grooves 221

Hole 222 retaining elements 23

Limiting element 24 head body 3

Second joint unit, 31 openings 32

The second engaging unit, 321 annular spaces 322

Inwall 323 holes 33

Flexible member 34 barrier elements 35

The specific embodiment

See also Fig. 1 to Fig. 5, be the selected example structure of the present invention shown in the figure.

The present invention is a kind of head pivot-swing location structure of instrument, comprising: a wrench body 1, one first joint unit 2 and a head body 3.

One end of this wrench body 1 has a fixed cell 11, and in the present embodiment, this fixed cell 11 is the height that are lower than wrench body 1.

This first joint unit 2 is the fixed cells 11 that are fixed in this wrench body 1, and this first joint unit 2 is made up of one first an engaging unit 21 and a cylinder 22, in the present embodiment, first of this first junction surface 2 engaging unit 21 is one to have the cylinder of external tooth form section.

One side of this head body 3 has one second joint unit 31, be to engage with above-mentioned first joint unit 2, and both can mutually combine and break away from.This second joint unit 31 has an opening 32, and this opening 32 is to connect this head body 3, and is provided with one second engaging unit 321 in this opening 32.In the present embodiment, the second engaging unit 321 at this second junction surface 31 is to engage the internal tooth form section that unit 21 fastens with first of this first joint unit 2, and is provided with an annular space 322 above this second engaging unit 321.This annular space 322 has an inwall 323, and the inwall 323 of this annular space 322 has a hole 33 with respect to a side of this wrench body 1, and this hole 33 stretches through to this head body 3 inner suitable distances, and confession one flexible member 34 and a barrier element 35 are inserted.In the present embodiment, this flexible member 34 is a spring, and this barrier element 35 is a steel ball.

The cylinder 22 of this first joint unit 2 is equipped with a groove 221 on the position with respect to these head body 3 openings 32, engage unit 321 with second of this head body 3 in the first engaging unit 21 of this first joint unit 2 for this barrier element 35 and insert during engaging mutually, second engage and locate when unit 321 is mutual to engage with this to increase this first engaging unit 21.

Moreover, cylinder 22 external diameters of its first joint unit 2 are the external diameters less than this first engaging unit 21, when the first engaging unit 21 of this first joint unit 2 engages the unit during 321 mutual disengagings with second of this head body 3, this second engaging unit 321 can rotate when moving to the groove 221 of this cylinder 22, as Fig. 4 and shown in Figure 5.

Again, be axially arranged with a hole 222 at cylinder 22 middle positions of this first joint unit 2, this hole 222 is first engaging 2 appropriate locations, unit that are communicated to these cylinder 22 belows, for a retaining element 23 lockings.In the present embodiment, this retaining element 23 is a screw, and is provided with a limiting element 24 between this retaining element 23 and this cylinder 22.In the present embodiment, this limiting element 24 is a packing ring.When the first engaging unit 21 of this first joint unit 2 engage the mutual disengagings in unit 321 with second of this head body 3, this head body 3 can be not whole not be deviate from, limit the scope of activities of this head body 3.

In sum, external tooth form section by this first engaging unit 21 matches with the internal tooth form section of this second engaging unit 321, promoted the intensity after this wrench body 1 mutually combines with head body 3, can not produce as existing structure when user's Overexertion and make this wrench body 1 and this head body 3 break away from.

In addition, because this head body 3 is into vertical pivot joint with this wrench body 1, when the user when the scope of application is narrow and small, the second engaging unit 321 that breaks away from these head body 3 second joint units 31 by the first engaging unit 21 of this wrench body 1 first joint unit 2, move again and be adjusted to desired location and then engage again, then can increase the user and revolve the application of force scope of lock during workpiece, and then reduce the user and need repeatedly move back and forth just can the lock number of times of workpiece of this wrench body 1.

The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.

In sum, the present invention is on structural design, use practicality and cost benefit, it is required to meet industry development fully, and the structure that is disclosed also is to have unprecedented innovation structure, have novelty, creativeness, practicality, the regulation that meets relevant patent of invention important document is so mention application in accordance with the law.

Claims

1. A head pivot positioning structure of a tool, characterized in that it comprises:

A wrench body with a fixing unit at one end;

A first engaging unit is a fixed unit fixed to the wrench body, and the first engaging unit is composed of a first engaging unit and a cylinder;

A head body, one side of which has a second engaging unit, which is engaged with the above-mentioned first engaging unit, and the two can be combined and disengaged from each other, the second engaging unit has an opening, and the opening passes through the head A second engaging unit is provided in the opening, an annular space is provided above the second engaging unit, the annular space has an inner wall, and the inner wall of the annular space has a hole on the side opposite to the wrench body , the hole extends to an appropriate distance inside the head body for an elastic element and a blocking element to be inserted.

2 . The tool head pivoting positioning structure according to claim 1 , wherein the height of the fixing unit is lower than that of the wrench body. 3 .

3. The pivoting positioning structure of the tool head according to claim 1, characterized in that the first engaging unit and the second engaging unit are tooth-shaped segments that cooperate with each other, so that the two can be engaged with each other for positioning .

4. The tool head pivot positioning structure according to claim 3, characterized in that the first engaging unit of the first engaging part is a cylinder with an external tooth section, and the second engaging part The second engaging unit is an internal tooth-shaped section engaged with the first engaging unit of the first engaging unit.

5. The tool head pivoting positioning structure according to claim 1, characterized in that a groove is provided on the upper ring of the cylinder of the first engaging unit relative to the opening of the head body for the blocking The element is inserted when the first engaging unit of the first engaging unit is engaged with the second engaging unit of the head body.

6. The tool head pivoting positioning structure according to claim 1, characterized in that the cylinder outer diameter of the first engaging unit is smaller than the outer diameter of the first engaging unit, when the first engaging unit When the first engaging unit and the second engaging unit of the head body disengage from each other, the second engaging unit can only rotate when it moves to the groove of the cylinder.

7. The tool head pivoting positioning structure according to claim 1, characterized in that a hole is axially provided in the center of the cylinder of the first engaging unit, and the hole is connected to the first cylinder below the cylinder. The engaging unit is properly positioned for locking by a fixing element, and a restricting element is provided between the fixing element and the column, when the first engaging unit of the first engaging unit and the second engaging unit of the head body When disengaging from each other, the head body can not be completely disengaged.

8. The pivoting positioning structure of the tool head according to claim 7, wherein the fixing element is a screw.

9 . The pivoting positioning structure of the tool head according to claim 7 , wherein the restricting element is a washer. 10 .

10 . The pivoting positioning structure of the tool head according to claim 1 , wherein the elastic element is a spring, and the blocking element is a steel ball. 11 .