CN101618534A

CN101618534A - Driver of ratchet wheel

Info

Publication number: CN101618534A
Application number: CN200810053702A
Authority: CN
Inventors: 赖进财
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-30
Filing date: 2008-06-30
Publication date: 2010-01-06

Abstract

A driver of a ratchet wheel comprises a driver rod and a ratchet wheel driving part. The ratchet wheel driving part is provided with a ratchet wheel and a control element. The control element is used for adjusting the ratchet flopping and ratchet fixing direction of the ratchet wheel. The ratchet wheel and the driver rod are in linkage arrangement so as to adjust the control element to realize the bi-directional adjustment of the driver of the ratchet wheel. The upper and lower ends of the ratchet wheel are circularly provided with a first tooth flank and a second tooth flank of which the tooth directions are opposite. The upper and lower ends of the control element are provided with a first tooth area and a second tooth area of which the tooth directions are opposite. The control element is operated to engage the first tooth area with the first tooth flank or engage the second tooth area with the second tooth flank. The engaged tooth area and tooth flank has mono-directional ratchet flopping and ratchet fixation. The driver of the ratchet wheel is bi-directionally adjusted through the ratchet flopping and ratchet fixing direction of the first tooth area and the first tooth flank, which is opposite to those of the second tooth area and the second tooth flank. The driver of the ratchet wheel provided by the invention has greatly improved stability and tension, and effectively avoids phenomena such as structure fatigue and wear easily caused during the long-term operation of the driver of the ratchet wheel.

Description

Ratchet screw

Technical field

The present invention relates to a kind of hand-operated tools, relate in particular to a kind of dual adjustment that turns to, and have structure-reinforced ratchet screw concurrently.

Background technology

Establish in the operation in the facility group on the Industrial Engineering at present, using the widest bolt to establish assembly is exactly screw, for example; Common electrical home appliances such as television set, remote controller, computer, hair-dryer, even if on structural group is established, rely on the joint of screw piece, the dismounting group that is easy to of its screw piece is established characteristic, it is widely used in the engineer operation, only need utilize the auxiliary of screwdriver, can carry out the bolt operation screw piece; Screwdriver has different classification according to different effects, for example; Electric screw driver, torsion screwdriver, noninductive bottle opener, ratchet screw, impact driver etc., its function are to do different differences on using.

Yet, for establishing operation as the bolt of demand with quantity or speed, overriding concern promptly is whether bottle opener is convenient in operation, and ratchet screw can provide in this respect the bolt of demand to establish, and because of ratchet screw can limit fixing bolt set direction, promptly can produce the phenomenon of idle running in the other direction, the user is when the operation ratchet screw whereby, the application of force original position of the grip handle of can loosing one's grip back only need be rotated ratchet screw repeatedly, can lock set direction to desire and do bolt and establish operation.

See also TaiWan, China patent application case number No. 093206735 " ratchet screw structure " patent, this ratchet screw is provided with a ratchet structure and and switches structure on a main rod body, and is sheathed on main rod body ratchet structure place for the muff joint correspondence of socket screwdriver head; Again, main rod body leading portion center is formed with an axis hole, and section is formed with first and second profile groove that is communicated with axis hole respectively before and after the main rod body, moreover the axis hole of main rod body is pivoted with a couple axle, and this couple axle is formed with first and second jack respectively at corresponding first and second profile groove place; And ratchet structure is to be pivoted with a sour jujube piece in first profile groove of main rod body, this sour jujube piece outboard peripheries is formed with two first and second flank of tooth that slightly protrude the main rod body periphery, and the sour jujube piece back side is formed with an arc and supports edge, moreover, be provided with a compression spring and a reference column in first jack of couple axle, wherein reference column contact sour jujube piece arc supports edge, moreover muff joint is formed with the interior ratchet of corresponding ratchet structure sour jujube piece; Switching construction then is to be arranged with a spinning roller at the corresponding second profile groove place of main rod body again, wears tube and be inserted with one in second jack of couple axle, wears a built-in compression spring and the gag lever post that be provided with of tube, and wherein gag lever post is arranged in the spinning roller; Whereby, group formation one is easy to switch and move certain ratchet screw structure.

Above-mentioned existing " ratchet screw structure " establishes application though patent can be done the dual bolt of adjustment that turns to, yet stable, the intensity of its structure dislike not enough slightly; Because of the adjustment that turns to of its twocouese, do to pivot by same sour jujube piece and adjusted, therefore, and though ratchet screw be do either party to bolt establish operation, all be to establish the position as last Zhi Lidian by the bolt of sour jujube piece; Hence one can see that, and the bolt of sour jujube piece is established the position and must be adjusted and two-way fixing application such as Zhi Lidian as the sour jujube piece, and its structure easily produces phenomenons such as fatigue, consume.

In view of the defective that above-mentioned ratchet screw structure is produced, the inventor is by the many years of experience of being engaged in hand-held tool creation, constantly brings forth new ideas, changes persuing, develops a kind of ratchet screw with high structural strength finally, can effectively strengthen the durability of ratchet screw.

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 ratchet screw, it is established the adjustment function except that having the two-way bolt of existing ratchet screw, its structure is compared to the existing sour jujube piece formula that is pivoted of adopting, more significantly promote in stability, intensity, effectively avoid phenomenons such as the easy structural fatigue that produces, consume under the ratchet screw long-term action.

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

A kind of ratchet screw comprises a screwdriver rod and a spine move portion, wherein; This spine move portion is provided with a ratchet and a control piece, and this control piece is beated and the ratchet fixed-direction for the ratchet of adjusting ratchet, and this ratchet is and the setting of screwdriver rod interlock; Whereby, adjust control piece to reach the two-way adjustment of ratchet screw.

Aforesaid ratchet screw, wherein two ends are to be equipped with the first opposite flank of tooth of teeth directional and second flank of tooth about the ratchet, this control piece also is provided with the first opposite tooth district of teeth directional and the second tooth district in two ends up and down, the operation control piece can make the first tooth district and first flank engagement, or second the tooth district and second flank engagement, and the tooth district and the flank of tooth of each engagement are to present that unidirectional ratchet is beated and ratchet is fixed; Whereby, by the ratchet of the first tooth district and first flank of tooth beat, the ratchet fixed-direction, in contrast to the ratchet of the second tooth district and second flank of tooth beat, the ratchet fixed-direction, to reach the two-way adjustment of ratchet screw.

Aforesaid ratchet screw, comprising the upper limb ring and the control loop of an insulation material, and this screwdriver rod is provided with the comparatively limited diameter section of limit of bar footpath; This upper limb ring is sheathed with screwdriver rod, and it is corresponding with the limited diameter section that this upper limb is equipped with one or more notch, this control loop inner edge is provided with one or more and extends segmental arc, this extension segmental arc is to the curved extension shape in control loop center by the control loop inner edge, this control loop is to establish with the upper limb ring set, and extending segmental arc is to stretch into the limited diameter section by notch, is vertical constraints with screwdriver rod.

Aforesaid ratchet screw, hollow shank comprising an insulation material, this control piece is to be located in the shank, this shank is provided with one end is set, this be provided with end surfaces be provided with one with the chute of shank internal communication, and this end is set is that movable sleeve is provided with all and changes cover, this switchings is overlapped inner edge and is provided with an extension, this extension is to pass chute and control piece setting, and is subjected to switch to be placed in and end is set slides and the control piece interlock; This shank is provided with a hollow interior bar, should in bar be to be located in the shank, this ratchet is in being located in the bar, and should in the bar surface be provided with one with the control flume of internal communication for control piece and ratchet engaged setting, and this lever is provided with a fastener in interior bar bottom, and this fastener is to fix with the screwdriver rod bottom.

Aforesaid ratchet screw, hollow shank comprising an insulation material, and this spine move portion also is the insulation material, and this screwdriver rod is provided with a head end, and this screwdriver rod is the insulation material beyond the head end at least, this shank surface be provided with one with the corresponding groove of internal communication, and this corresponding groove is provided with a switch piece, this control piece is to be located in the shank and the setting of switch piece interlock; This shank has a hollow interior bar, and bar is located in the shank in this, in this ratchet is located in the bar, and should in the bar surface be provided with one with the control flume of internal communication for control piece and ratchet engaged setting.

Aforesaid ratchet screw, wherein screwdriver rod is provided with one polygonal section, and this ratchet center is a polygonal groove, and this polygonal section is rotation direction with polygonal groove and fixes.

Aforesaid ratchet screw, wherein the ratchet upper limb is around being provided with an annular gear, this upper limb is equipped with the corresponding setting with annular gear in the flexible extension of a tool.

Aforesaid ratchet screw, wherein upper limb is equipped with the section of establishing in a revealed section and, the section of establishing in this notch forms in, and the section of establishing is sheathed with control loop in being somebody's turn to do, this revealed section surface is provided with sign.

Whereby, by the ratchet of the first tooth district and first flank of tooth beat, the ratchet fixed-direction, in contrast to the ratchet of the second tooth district and second flank of tooth beat, the ratchet fixed-direction, to reach the two-way adjustment of ratchet screw.

The present invention's " ratchet screw " reaches by control piece and ratchet subregion that ratchet is beated and ratchet is fixed, can effectively reduce the abrasion on the ratchet engagement, and the mode that is pivoted is rotated in the non-employing of control piece of the present invention, so, the flank of tooth of different fixing direction and tooth district are in engagement, making bolt, to establish the Zhi Lidian that rotation produces also inequality, can effectively reduce the coefficient of losses that control piece and ratchet are used.

The invention has the beneficial effects as follows, it is established the adjustment function except that having the two-way bolt of existing ratchet screw, its structure more significantly promotes in stability, intensity compared to the existing sour jujube piece formula that is pivoted of adopting, and effectively avoids under the ratchet screw long-term action easily phenomenons such as the structural fatigue of generation, consume.

Description of drawings

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

Fig. 1 is the perspective exploded view of ratchet screw of the present invention.

Figure 1A is the control piece back side schematic perspective view of ratchet screw of the present invention.

Fig. 2 is the stereoscopic schematic diagram of ratchet screw of the present invention.

Fig. 3 to Fig. 5 is the partial cutaway schematic of ratchet screw of the present invention.

Fig. 6 is the generalized section of the present invention's A-A line segment shown in Figure 4.

Fig. 7 is the generalized section of the present invention A ' shown in Figure 5-A ' line segment.

Fig. 8 is the perspective exploded view of ratchet screw second embodiment of the present invention.

Fig. 9, Figure 10 are the partial cutaway schematic of ratchet screw second embodiment of the present invention.

The number in the figure explanation:

12 polygonal sections of 1 screwdriver rod, 11 limited diameter sections

13 head ends, 2 upper limb rings, 21 revealed sections

The section of establishing 23 extensions 24 notches in 22

25 indicate 3 control loops 31 extends segmental arc

Bar 411 control flumes in 4 shanks 41

42 corresponding grooves, 43 switch pieces 44 are provided with end

441 chutes 45 switch cover 451 extensions

46 fasteners, 5 ratchets, 51 first flank of tooth

52 second flank of tooth, 53 annular gears, 54 polygonal grooves

62 second tooth districts, 6 control pieces, 61 first tooth districts

The specific embodiment

The present invention is provided with closes a kind of ratchet screw, and detailed is the dual ratchet screw that turns to adjustment of a kind of tool, gives the user whereby and locks more easily and establish operation; See also Fig. 1 to shown in Figure 3, this ratchet screw comprises a screwdriver rod 1, a spine move portion, a upper limb ring 2, a control loop 3 and a shank 4, and spine move portion, upper limb ring 2, control loop 3 and shank 4 are the insulation material.

This screwdriver rod 1 is provided with 11, polygonal a section 12 of a limited diameter section and a head end 13, and this screwdriver rod 1 is the insulation material beyond the head end 13 at least, the bar footpath that this limited diameter section 11 is a screwdriver rod 1 is the section of limit comparatively, this head end 13 present embodiment be with a word bottle opener as expression, can be changed to cross, star bottle opener etc. in the practical application and rotate relevant hand-held tool.

This spine move portion is provided with a ratchet 5 and a control piece 6, this ratchet about in the of 5 two ends be to be equipped with the first opposite flank of tooth 51 of teeth directional and second flank of tooth 52, and these ratchet 5 upper limbs and center are to be formed with annular gear 53 and polygonal groove 54 respectively, and this ratchet 5 is that polygonal section 12 fit by polygonal groove 54 and screwdriver rod 1 presents rotation direction and fixedly install; This control piece also is provided with the first opposite tooth district 61 of teeth directional and the second tooth district 62 in two ends about in the of 6, and operation control piece 6 can make the

first tooth district

61 and 51 engagements of first flank of tooth, or second tooth district 62 and the engagement of second flank of tooth 52, and the tooth district and the flank of tooth of each engagement can present that unidirectional ratchet is beated and ratchet is fixed.

This upper limb ring 2 is to be slidingly connected with screwdriver rod 1, this upper limb ring 2 is provided with a section of establishing 22 and a flexible extension 23 in the revealed section 21,, the section of establishing 22 is sheathed with control loop 3 and shank 4 in being somebody's turn to do, these revealed section 21 surfaces are provided with and indicate 25, and this upper limb ring 2 is that to be formed with one or more notch 24 corresponding with the limited diameter section 11 of screwdriver rod 1 in the interior section of establishing 22, this extension 23 and annular gear 53 corresponding settings, so, when ratchet 5 rotations, annular gear 53 is promptly stirred extension 23 and is produced the springing sound.

These control loop 3 inner edges are provided with one or more and extend segmental arc 31, this extension segmental arc 31 is to the curved extension shape in control loop 3 centers by control loop 3 inner edges, this control loop 3 is sheathed with upper limb ring 2, and to extend segmental arc 31 be to stretch into limited diameter section 11 by notch 24, is vertical constraints with screwdriver rod 1; If will change screwdriver rod 1, only need rotate control loop 3, it extends segmental arc 31 and promptly is subjected to notch 24 urgent arrival ﹠ departure to open limited diameter section 11, removes the vertical constraints of control loop 3 and screwdriver rod 1 whereby.

These shank 4 centers are to be hollow shape, these shank 4 surfaces be provided with one with the corresponding groove 42 of internal communication, and this corresponding groove 42 is provided with a switch piece 43, the control piece 6 of this spine move portion is to be located in the shank 4 and with switch piece 43 to be the interlock setting, this shank 4 is provided with a hollow interior bar 41, should in bar 41 be to be located in the shank 4, the ratchet 5 of this spine move portion is in being located in the bar 41, and should in bar 41 surfaces be provided with one and reach engagement setting for control piece 6 and ratchet 5 with the control flume 411 of internal communication.

See also Fig. 4 to shown in Figure 7, be that the present invention's " ratchet screw " bolt set direction is adjusted motion flow, when first flank of tooth 51 and the first tooth district 61 present engagement (as Fig. 4, shown in Figure 6), this screwdriver rod 1 only can do wherein that the ratchet of a direction is beated and ratchet is fixed, and when second flank of tooth 52 and the second tooth district 62 present engagement (as Fig. 5, shown in Figure 7), the ratchet that this screwdriver rod 1 can be done other direction is beated and ratchet is fixed; Whereby, by the ratchet of the first tooth district 61 and first flank of tooth 51 beat, the ratchet fixed-direction, in contrast to the ratchet of the second tooth district 62 and second flank of tooth 52 beat, the ratchet fixed-direction, to reach the two-way adjustment of ratchet screw.

See also shown in Figure 8, second embodiment of the invention, this shank 4 is provided with one end 44 is set, this be provided with end 44 surfaces be provided with one with the chute 441 of shank 4 internal communication, and this be provided with the end 44 be movable sleeve be provided with all change the cover 45, these switching cover 45 inner edges are provided with an extension 451, this extension 451 is to pass chute 441 to be provided with control piece 6, and be subjected to switch cover 45 end 44 slips and control piece 6 interlocks are being set, and this lever 4 is provided with a fastener 46 in interior bar 41 bottoms, and this fastener 46 is to produce fixing with screwdriver rod 1 bottom.

See also Fig. 9 to shown in Figure 10, be that second embodiment of the invention bolt set direction is adjusted motion flow, when first flank of tooth 51 and the first tooth district 61 present engagement (as shown in Figure 9), this screwdriver rod 1 only can do wherein that the ratchet of a direction is beated and ratchet is fixed, when the ratchet of desiring to switch to other direction is beated with ratchet fixedly, only need promote to switch cover 45 and drive control piece 6, when making second flank of tooth 52 and the second tooth district 62 present engagement (as shown in figure 10), the ratchet that this screwdriver rod 1 can be done other direction is beated and ratchet is fixed.

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 ratchet screw comprises a screwdriver rod and a spine move portion, wherein;

This spine move portion is provided with a ratchet and a control piece, and this control piece is beated and the ratchet fixed-direction for the ratchet of adjusting ratchet, and this ratchet is and the setting of screwdriver rod interlock;

Whereby, adjust control piece to reach the two-way adjustment of ratchet screw.

2. ratchet screw according to claim 1, it is characterized in that: described ratchet two ends up and down is to be equipped with the first opposite flank of tooth of teeth directional and second flank of tooth, this control piece also is provided with the first opposite tooth district of teeth directional and the second tooth district in two ends up and down, the operation control piece can make the first tooth district and first flank engagement, or second the tooth district and second flank engagement, and the tooth district and the flank of tooth of each engagement are to present that unidirectional ratchet is beated and ratchet is fixed;

3. ratchet screw according to claim 1 is characterized in that: comprise the upper limb ring and the control loop of an insulation material, and this screwdriver rod is provided with the comparatively limited diameter section of limit of bar footpath;

This upper limb ring is sheathed with screwdriver rod, and it is corresponding with the limited diameter section that this upper limb is equipped with one or more notch, this control loop inner edge is provided with one or more and extends segmental arc, this extension segmental arc is to the curved extension shape in control loop center by the control loop inner edge, this control loop is to establish with the upper limb ring set, and extending segmental arc is to stretch into the limited diameter section by notch, is vertical constraints with screwdriver rod.

4. ratchet screw according to claim 1, it is characterized in that: the hollow shank that comprises an insulation material, this control piece is to be located in the shank, this shank is provided with one end is set, this be provided with end surfaces be provided with one with the chute of shank internal communication, and this end is set is that movable sleeve is provided with all and changes cover, this switchings is overlapped inner edge and is provided with an extension, this extension is to pass chute and control piece setting, and is subjected to switch to be placed in and end is set slides and the control piece interlock;

This shank is provided with a hollow interior bar, should in bar be to be located in the shank, this ratchet is in being located in the bar, and should in the bar surface be provided with one with the control flume of internal communication for control piece and ratchet engaged setting, and this lever is provided with a fastener in interior bar bottom, and this fastener is to fix with the screwdriver rod bottom.

5. ratchet screw according to claim 1, it is characterized in that: the hollow shank that comprises an insulation material, and this spine move portion also is the insulation material, and this screwdriver rod is provided with a head end, and this screwdriver rod is the insulation material beyond the head end at least, this shank surface be provided with one with the corresponding groove of internal communication, and this corresponding groove is provided with a switch piece, this control piece is to be located in the shank and the setting of switch piece interlock;

This shank has a hollow interior bar, and bar is located in the shank in this, in this ratchet is located in the bar, and should in the bar surface be provided with one with the control flume of internal communication for control piece and ratchet engaged setting.

6. ratchet screw according to claim 1 is characterized in that: described screwdriver rod is provided with one polygonal section, and this ratchet center is a polygonal groove, and this polygonal section is rotation direction with polygonal groove and fixes.

7. ratchet screw according to claim 3 is characterized in that: described ratchet upper limb is around being provided with an annular gear, and this upper limb is equipped with the corresponding setting with annular gear in the flexible extension of a tool.

8. ratchet screw according to claim 3 is characterized in that: described upper limb is equipped with the section of establishing in a revealed section and, the section of establishing in this notch forms in, and the section of establishing is sheathed with control loop in being somebody's turn to do, this revealed section surface is provided with sign.