CN102528686A - Spring clip - Google Patents
Spring clip Download PDFInfo
- Publication number
- CN102528686A CN102528686A CN2010106135220A CN201010613522A CN102528686A CN 102528686 A CN102528686 A CN 102528686A CN 2010106135220 A CN2010106135220 A CN 2010106135220A CN 201010613522 A CN201010613522 A CN 201010613522A CN 102528686 A CN102528686 A CN 102528686A
- Authority
- CN
- China
- Prior art keywords
- friction pair
- main body
- pair element
- spring clip
- fixture block
- 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.)
- Granted
Links
Images
Landscapes
- Clamps And Clips (AREA)
Abstract
The invention discloses a spring clip, which comprises a first main body comprising a holding part and a clamping part, a second main body comprising a holding part and a clamping part, and a first pivot element and a locking mechanism, wherein the first main body is pivotably connected with the second main body through the first pivot element and the locking mechanism, the locking mechanism is composed of a pair of friction pair components; in the friction pair components, the first friction pair component comprising a first friction pair element is arranged on the first main body, the second friction pair component comprising a second friction pair element is arranged on the second main body; the first friction pair element and the second friction pair element in pairs arranged in the friction pair components mutually rub each other and play a locking role; and the friction pair elements mainly rub in a plane perpendicular to an axis of the first pivot element. The friction pair components are in pairs arranged in the plane perpendicular to the axis of the first pivot element for contact and friction. Because the plane is wider, the abrasion quantity between the friction pair components is little, and requirements of materials made into the friction pair components are lower, the spring clip can be used reliably for a long time.
Description
Technical field
The present invention relates to the machine tool technical field, relate in particular to a kind of spring clip that can stepless adjustment.
Background technology
Spring clip according to the size of clipped object, needs the aperture of adjustment folder mouth in the process of using.When operation, it is good to need aperture to be fixed as again.For ease of the aperture of fixedly adjusting, the spring clip that has retaining mechanism has in a large number been arranged in the prior art.
U.S. Pat 6708587B1 discloses a kind of spring clip, and operating element is arranged on an outside of pincers handle, and available thumb manipulation has been simplified the work of hand, the technical scheme that tooth bar is paid is set but be employed in pincers on the handle, realization be to have level to regulate.
The disclosed spring clip of U.S. Pat 6860179B2 and US7406897B2 is arranged on the inboard of clamping handle with operating element, and available forefinger or nameless operation are handling better.Its retaining mechanism comprises that clamp bar and one of a strip can rotating check lock levers.Clamp bar one end is installed on the handle pivotally, and the other end stretches to handle.In order to adapt to moving of handle, clamp bar is tabular of the strip of arc, and is configured to be parallel to pivot, and promptly the circular arc home position of clamp bar is at the pivot place.
Check lock lever can pivot, and has a slotted opening near pivotal axis one end.Clamp bar can pass opening slidably.The other end of check lock lever is withstood by a spring.Spring pressure causes the relative clamp bar biasing of opening, and the clamp bar edge of circular arc and the edge at one of opening two ends or two ends rub, and realize locking.When overcoming spring pressure, press check lock lever, clamp bar edge and opening edges at two ends disengage, and realize discharging.
The clamp bar edge is basic parallel with pivot with the rubbing surface of opening edges at two ends.Because clamp bar is thinner, its edge and the contact site of opening edges at two ends usually can only be to contact or very short line contact, are easy to excessive wear; In the use, its locking function reliability can reduce gradually, even when may wear to a certain degree; The locking function thoroughly lost efficacy, and whole spring clip is scrapped.Even according to the disclosed improved technical scheme of US6860179B2, fillet structure has been adopted at clamp bar edge and opening two ends, excessive wear still can not be avoided fully.Therefore, this type spring clip is higher to the material requirements of intermediate plate, check lock lever opening part, causes cost to improve.Clamp bar must manufacture circular arc, and its profile and dimensional accuracy processing request are higher; The opening length direction also has the high dimension precision processing request, and this has all directly caused the cost raising.
U.S. Pat 7107881B1 discloses a kind of spring clip, in an one of which main body, vertically is provided with shaft, through the locking of L type element or discharge this shaft, with fixing aperture.Because the part of L type element is given prominence to outside main body, needs the help of another hand during adjustment, has reduced the degrees of freedom of hand, the convenience during use is relatively poor.And its shaft is basic parallel with pivot with the rubbing surface of L type element, has aforementioned excessive wear and the long-term problem of using the locking function reliability to reduce equally, and is higher to material requirements, causes cost to improve.
Therefore, those skilled in the art is devoted to develop a kind of easy to adjust, and convenience is good, can use reliably and with long-term, lower-cost spring clip that can stepless adjustment.
Summary of the invention
Because the above-mentioned defective of prior art, technical problem to be solved by this invention provides a kind of easy to adjust, and convenience is good, can use reliably and with long-term, lower-cost spring clip that can stepless adjustment.
For realizing above-mentioned purpose, the invention provides a kind of spring clip, comprise first main body, it comprises grip portions and retained part; Second main body, it comprises grip portions and retained part; With first main body and second main body pivotly be linked together first pivot element; With a retaining mechanism, form by at least one pair of friction pair parts; Said friction pair parts centering, the first friction pair parts are arranged on first main body, comprise the first friction pair element; The second friction pair parts are arranged on second main body, comprise the second friction pair element; Locking action is played in first, second friction pair element phase mutual friction in the friction pair parts of said paired setting; Wherein said friction pair element mainly rubs in the plane perpendicular to the said first pivot element axis.
Spring clip of the present invention with the friction pair element to be arranged in perpendicular in the plane of the first pivot element axis contact and rub.Because this plane is comparatively roomy, can long line contact or even face contact be arranged in the contact site, the friction pair element to wear extent very little.Therefore, lower to the material requirements of friction pair element, can use reliably and with long-term, cost is lower.
In preferred embodiments of the present invention, said retaining mechanism also comprises a release mechanism, is used to control between said first, second friction pair element disengage, and removes the locking between said first, second friction pair element.This release mechanism can also comprise an operating grip, presses said operating grip through press...withing one's finger, and said release mechanism is played remove the effect that locks between said first, second friction pair element.
In another preferred embodiments of the present invention, the said first friction pair parts are arranged on first main body regularly.
In another preferred embodiments of the present invention, the said second friction pair parts are arranged on second main body regularly.
In another preferred embodiments of the present invention, the said first friction pair element is a strip tablet, has at least one and is positioned at the first type surface with the plane of the first pivot element axis approximate vertical, as the rubbing surface that contacts with the second friction pair element.
Spring clip of the present invention with the first friction pair element surface of sheet as the rubbing surface that contacts with the second friction pair element; Contour shape to this chip component is less demanding; It can be circular arc; Also can be rectangle or other elongate in shape, not high to the size tolerance requirements on this chip component width yet, reduced processing cost.
In another preferred embodiments of the present invention, the said second friction pair element is that friction pair element of first friction pair element formation of needle roller, wedge or an eccentric cam and sheet is right.Or it is how right to the friction pair element that the first friction pair element of a plurality of needle rollers, wedge or eccentric cam and sheet is formed, and plays locking action jointly.
Wherein, in a preferred embodiments of the present invention, the said second friction pair element is at least one needle roller;
Further, the said second friction pair parts comprise: the fixture block that the said first friction pair element can penetrate, and the relative both sides of said fixture block are provided with bar hole, are provided with the needle roller that at least one end exposes to said bar hole in the said bar hole; After the said first friction pair element penetrates fixture block, constitute an angle between said bar hole and the said first friction pair element so that the said needle roller in the said bar hole and the said first friction pair element have and contact or break away from two states; With a needle roller retainer plate; The outside that is arranged on said fixture block through flexible member to be limiting the axial freedom of said needle roller, and can in said bar hole, move to the direction of the said first friction pair element of contact promoting said needle roller under the effect of said flexible member; The operate portions of said control handle can promote said needle roller and in said bar hole, move to the direction that breaks away from the said first friction pair element in turn.
Wherein, in another preferred embodiments of the present invention, the said second friction pair element is at least one wedge;
Further; The said second friction pair parts comprise: the fixture block that the said first friction pair element can penetrate; The relative both sides of said fixture block are provided with the wedge guide groove, are provided with the wedge that at least one end exposes to said wedge guide groove in the said wedge guide groove; After the said first friction pair element penetrates fixture block, constitute an angle between said wedge guide groove and the said first friction pair element so that the said wedge in the said wedge guide groove and the said first friction pair element have and contact or break away from two states; With a wedge retainer plate; The outside that is arranged on said fixture block through flexible member to be limiting the axial freedom of said wedge, and can in said wedge guide groove, move to the direction of the said first friction pair element of contact promoting said wedge under the effect of said flexible member; The operate portions of said control handle can promote said wedge and in said wedge guide groove, move to the direction that breaks away from the said first friction pair element in turn.
Wherein, in another preferred embodiments of the present invention, the said second friction pair element is at least one eccentric cam;
Further, the said second friction pair parts comprise: the fixture block that the said first friction pair element can penetrate; With a cam, be hubbed on the said fixture block through a torsion spring; After the said first friction pair element penetrated fixture block, the rotation of said cam had said cam and the said first friction pair element to contact or breaks away from two states; And said operating grip and cam are one-body molded, and the turn of said control handle can promote the said first friction pair element of said cam disengages.
In another preferred embodiments of the present invention; The articulated section of said first main body and said second main body is positioned at the middle part of said first main body and said second main body, makes the grip portions of said first main body and second main body and the both sides that retained part lays respectively at the articulated section of first main body and second main body.Or the articulated section of said first main body and said second main body is positioned at the end of said first main body and said second main body, makes the grip portions of said first main body and second main body and the same side that retained part is positioned at the articulated section of first main body and second main body.
In another preferred embodiments of the present invention, have semi-open cavity in said first main body and/or said second main body, and said friction pair parts are arranged in the said cavity.Said operating grip can be arranged in the said cavity, and at least a portion of said operating grip is positioned at outside the said cavity when clamped condition.
Owing to operating grip is arranged on the inboard of main body, and mainly is in the cavity of main body, the user is just very convenient to the operation of operating grip, has improved the convenience of spring clip greatly.
In another preferred embodiments of the present invention, the said first friction component can be circular arc; Further, its thickness is roughly even.
In another preferred embodiments of the present invention, the said operating grip and the second friction pair element are one-body molded.
In another preferred embodiments of the present invention, the retained part of said first main body and/or said second main body is provided with active chuck.
In another preferred embodiments of the present invention, said first main body and said second main body partly or entirely be coated with soft clad.
In another preferred embodiments of the present invention, with said first main body and said second main body be linked together said first pivot element have a torsion spring, between said first main body and said second main body, to apply a tension force.
Below will combine accompanying drawing that the technique effect of design of the present invention, concrete structure and generation is described further, to understand the object of the invention, characteristic and effect fully.
Description of drawings
Fig. 1 is first working state structure (self-locking state) sketch map of the embodiment of the invention 1;
Fig. 2 is second duty (treating a clamp position) structural representation embodiment illustrated in fig. 1.
Fig. 3 is that retaining mechanism embodiment illustrated in fig. 1 is along the A-A cross-sectional view;
Fig. 4 is that the retaining mechanism of the embodiment of the invention 2 is along the A-A cross-sectional view;
Fig. 5 is that the retaining mechanism of the embodiment of the invention 3 is along the A-A cross-sectional view;
Fig. 6 is that the retaining mechanism of the embodiment of the invention 4 is along the A-A cross-sectional view;
Fig. 7 is the structural representation of the embodiment of the invention 5;
Fig. 8 is retaining mechanism and a release mechanism structural representation embodiment illustrated in fig. 7;
Fig. 9 is that the second friction pair parts embodiment illustrated in fig. 7 are along the C-C cross-sectional view;
Figure 10 is that retaining mechanism embodiment illustrated in fig. 7 is along C-C section working state structure sketch map;
Figure 11 is that retaining mechanism embodiment illustrated in fig. 7 and release mechanism are along the B-B cross-sectional view;
Figure 12 is the needle roller force analysis figure under second duty embodiment illustrated in fig. 2;
Figure 13 is the needle roller force analysis figure under first duty embodiment illustrated in fig. 1.
The specific embodiment
[embodiment 1]
As illustrated in fig. 1 and 2, a specific embodiment of spring clip of the present invention, comprise 10, one second main bodys 20 of one first main body and with first main body 10 and second main body 20 pivotly be linked together first pivot 6.First main body 10, second main body 20 comprise grip portions 102,202 and retained part 101,201 respectively.The retained part of two main bodys 10,20 can also be respectively arranged with active chuck, so that clamping.
Making such as first pivot, 6 usefulness screws, bolt, rivet; Be positioned at the middle part of first main body 10 and second main body 20; The Lower Half of first main body 10 and second main body 20 can be formed with semi-open cavity respectively; And can externally be coated with soft clad, for example leather, artificial leather, plastics or rubber etc.
Spring clip of the present invention also comprises a retaining mechanism.This retaining mechanism comprises a pair of friction pair parts, and wherein the first friction pair parts are arranged on first main body 10, i.e. intermediate plate 32 among the figure; The second friction pair parts 31 are arranged on second main body 20, are made up of fixture block 301, needle roller 51, needle roller retainer plate 52 and flexible member 53.
Offer a passage 311 in the middle of the fixture block 301.One end 321 of intermediate plate 32 is fixedly installed on first main body 10, and another free end 322 is relative with fixture block 301, can penetrate passage 311.Free end 322 is the first friction pair element.
As shown in Figure 4, fixture block 301 is fixedly installed on second main body, 20 (not shown).The both sides of fixture block 301 are provided with bar hole 50, constitute an angle between bar hole 50 and the intermediate plate free end 322.Be provided with the needle roller 51 that two ends expose to bar hole 50 in the bar hole 50.This needle roller 51 constitutes the second friction pair element.Flexible member 53 of fixture block 301 arranged outside promotes needle roller 51 through a needle roller retainer plate 52 and moves towards the direction near intermediate plate free end 322 along bar hole 50.Needle roller retainer plate 52 plays the effect of the axial freedom of restriction needle roller 51 simultaneously.
Because the existence of above-mentioned angle just has adjustable spacing between needle roller 51 in the bar hole 50 and the intermediate plate free end 322.Two grip portions, 102,202 move toward one another (depressing) when spring clip; Intermediate plate free end 322 is free to slide in passage 311; Promote needle roller 51, overcome the pressure of flexible member 53, needle roller 51 moves towards the direction of leaving intermediate plate free end 322; The grip portions of spring clip can make the retained part of spring clip arrive the position of clamping the clipped object article depressing free unidirectional the moving of direction.Figure 12 shows its operation principle.The elastic force F of flexible member 53 can be decomposed into the Fx of tangential and the Fy of normal direction on the contact-making surface of bar hole and needle roller 51.Fx can make needle roller produce counterclockwise movement tendency.Two grip portions of dead spring folder are equivalent to push away (among the figure direction) from left to right to intermediate plate free end 322 to 311 li in passage.Needle roller 51 receives the frictional force of intermediate plate free end 322, also can produce the movement tendency that rotates counterclockwise, and that is to say, intermediate plate free end 322 can be freely unidirectional from left to right mobile along with rotating counterclockwise of needle roller 51.
Persons skilled in the art be appreciated that above-mentioned angle should greater than the inclined-plane from the locking angle, to avoid self-locking.Should be relevant with coefficient of friction between intermediate plate and needle roller from the size of the locking angle.
When retained part 101,201 stop motions of spring clip, flexible member 53 is pressed on the intermediate plate free end 322 needle roller 51 through needle roller retainer plate 52 to the elastic force that needle roller 51 applies, and intermediate plate free end 322 can't withdraw from, and realizes locking.
Retaining mechanism can also comprise a release mechanism.Release mechanism comprises an operating grip 40, and operating grip 40 is arranged on second main body 20 through torsion spring 42, but operating grip 40 is turns, is used to control the disengaging between fixture block 301 and the intermediate plate 32.The operate portions 41 of operating grip 40 in the turn of operating grip 40, provide one promote needle roller 51 in bar hole 50 to the power that moves away from intermediate plate free end 322 directions, as the reaction force of above-mentioned flexible member 53.Like the direction of arrow among Fig. 4; On needle roller retainer plate 52, apply the thrust (not shown operating grip) that can overcome flexible member 53 elastic force; Needle roller 51 is got back to relaxed state, and intermediate plate 32 is released and unlocks, and its free end 322 can be free to slide in passage 311.
Below in conjunction with Fig. 1, Fig. 2 and Figure 13,, its operation principle is described through the method for using of spring clip of the present invention.
Shown in Figure 1, spring clip does not have active force at closure state on the operating grip 40.Flexible member 53 promotes needle roller retainer plate 52, and needle roller 51 is pushed to bar hole 50 near intermediate plate 32 places, because the frictional force effect between needle roller 51 and the intermediate plate 32, intermediate plate 32 is locked, and spring clip keeps stable closure state.
When desire spurred first main body 10 and opens retained part, if pressing operation handle 40 not, owing to be an acute angle angle of friction between needle roller 51 and the intermediate plate 32, the power that spurs intermediate plate 32 can drive needle roller 51, makes both push tightlyer.Shown in figure 13, the elastic force F of flexible member 53 can be decomposed into the Fx of tangential and the Fy of normal direction on the contact-making surface of bar hole and needle roller 51.Fx can make needle roller produce counterclockwise movement tendency.Desire spurs first main body 10 and opens retained part and be equivalent to and will be pulled outwardly (the figure fail to agree from the right side direction) to intermediate plate free end 322 from 311 li in passage, and needle roller 51 receives the frictional force of intermediate plate free end 322, can produce the movement tendency that clockwise rotates.Two power interact and make that 51 of needle rollers can be to the direction motion near intermediate plate free end 322, and it is stressed big more spring clip so will to occur, and its pressure that offers intermediate plate free end 322 is also big more, reaches the purpose that intermediate plate free end 322 is clamped.So, be locked more firmly between needle roller 51 and the intermediate plate 32.Therefore, the present invention has realized the self-locking of first main body 10 and second main body 20 by above-mentioned simple structure.
When desire spurs first main body 10 and opens retained part, and pressing operation handle 40 simultaneously, because the effect of operate portions 41 on the operating grip 40 promotes the thrust that needle roller 51 overcomes flexible member 53, in bar hole 50, move to direction away from intermediate plate 32.So, needle roller 51 disengages with intermediate plate 32, and frictional force disappears, and intermediate plate 32 is released, and first main body 10 can be pulled, and retained part 101,201 is opened under the effect of torsion spring 42.
In the aforesaid operations, only need the user with can realizing with a finger pressing operation handle 40 on the other hand, thus the present invention have control easy, the advantage of one-hand operation.
When retained part reaches predetermined aperture, remove pushing to operating grip 40.Because the active force on the operating grip 40 disappears, the active force of flexible member 53 plays a role, push needle roller 51 once more and move to intermediate plate 32, and between generation frictional force, intermediate plate 32 is locked.
At this moment, as shown in Figure 2, the aperture of spring clip is maintained at a stable status, provides convenience for the operator uses.
When needs are adjusted the retained part aperture once more, only need the user with a finger pressing operation handle 40 with proficiency, can realize.
The present invention is owing to be provided with bar hole 50 and needle roller 51 structures; Utilize operating grip 40 or needle roller retainer plate 52; Through promoting needle roller 51 moving on two rightabouts; Realize the clamping or the disengaging of 51 pairs of intermediate plates 32 of needle roller, realized the technical purpose that the aperture of spring clip can stepless adjustment, improved the applicable performance of spring clip.
The friction pair element that the present invention forms needle roller 51 and intermediate plate 32 is to being arranged in intermediate plate 32 surfaces and contacting and rubbing.Because this plane is comparatively roomy, can long line contact be arranged in the contact site, the wear extent that needle roller 51 and intermediate plate are 32 is very little.Therefore, lower to the material requirements of friction pair element, can use reliably and with long-term, cost is lower.And the present invention is surperficial as the rubbing surface that contacts with needle roller 51 with intermediate plate 32, and is less demanding to the contour shape of intermediate plate 32; It can be circular arc; Also can be rectangle or other elongate in shape, not high to the size tolerance requirements on intermediate plate 32 widths yet, reduced processing cost.
Further, also has semi-open cavity in the Lower Half of first main body 10, second main body 20.And an end of intermediate plate 32 is arranged in the cavity of first main body 10, and fixture block 301 is arranged in the cavity of second main body 20.Operating grip 40 is arranged in second main body, 20 cavitys, and at least a portion of operating grip 40 is positioned at outside this cavity when clamped condition, so that push.
[embodiment 2]
The structure of another specific embodiment of spring clip of the present invention and embodiment 1 are similar, and difference is its retaining mechanism.As shown in Figure 4, be provided with two cover bar holes 50 and 50 ' in the fixture block 301 of retaining mechanism.Be provided with two needle rollers 51 and 51 ' that two ends expose to bar hole in the bar hole.Needle roller 51 is right with intermediate plate free end 322 compositions one cover friction pair element, and needle roller 51 ' is right with the another set of friction pair element of intermediate plate free end 322 compositions.Two cover friction pair elements are realized the stepless locking function of spring clip of the present invention to acting in conjunction.
The operation principle of present embodiment is identical with first embodiment, so do not repeat.
[embodiment 3]
The structure of another specific embodiment of spring clip of the present invention and embodiment 1 are similar; Difference is; With the second friction pair part replacement of retaining mechanism is the second new friction pair parts 131, is made up of fixture block as shown in Figure 5 1301, wedge 151, wedge retainer plate 152 and flexible member 153.Fixture block 1301 both sides are provided with wedge guide groove 150, are provided with the wedge 151 that two ends expose to wedge guide groove 150 in the wedge guide groove 150.This wedge 151 constitutes the second friction pair element.Flexible member 153 of fixture block 1301 arranged outside promotes wedge 151 through a wedge retainer plate 152 and moves towards the direction near intermediate plate free end 322 along wedge guide groove 150.Wedge retainer plate 152 plays the effect that prevents that wedge 151 from dropping from wedge guide groove 150 simultaneously.
Face contact is arranged in the contact site of present embodiment, the friction pair element to wear extent littler, lower to the material requirements of friction pair element, can use reliably and with long-term, cost is lower.
The operation principle of present embodiment is identical with first embodiment, so do not repeat.
[embodiment 4]
The structure of another specific embodiment of spring clip of the present invention and embodiment 3 are similar, and difference is, and be as shown in Figure 6, is provided with two cover wedge guide grooves 150 and 150 ' in the fixture block 1301 of retaining mechanism.Be provided with two wedges 151 and 151 ' that two ends expose to the wedge guide groove in the wedge guide groove.Wedge 151 is right with intermediate plate free end 322 compositions one cover friction pair element, and wedge 151 ' is right with the another set of friction pair element of intermediate plate free end 322 compositions.Two cover friction pair elements are realized the stepless locking function of spring clip of the present invention to acting in conjunction.
The operation principle of present embodiment is identical with the 3rd embodiment, so do not repeat.
[embodiment 5]
The structure of another specific embodiment of spring clip of the present invention and embodiment 1 are similar, also comprise 10, one second main bodys 20 of one first main body, with first main body 10 and second main body 20 pivotly be linked together first pivot 6 and a retaining mechanism.First main body 10, second main body 20 comprise grip portions 102,202 and retained part 101,201 respectively.Difference is that the release mechanism in the retaining mechanism and the second friction pair parts are installed together, and particularly, operating grip can be one-body molded with the second friction pair element.
Specifically, as shown in Figure 7, this retaining mechanism comprises a pair of friction pair parts, and wherein the first friction pair parts are arranged on first main body 10, i.e. intermediate plate 32 among the figure; The second friction pair parts 231 are arranged on second main body 20, are made up of fixture block 2301, cam 141, torsion spring 142 and axle 143.
As shown in Figure 8, fixture block 2301 is that " [" word trench structure is fixedly installed on second main body 20 half opening.Two STHs 250 of fixture block 2301 are provided with axle 143.Cam 141 is arranged on the axle 143 through the torsion spring 142 that is enclosed within on the axle 143.This cam 141 constitutes the second friction pair element.Cam 141 working faces are at least a portion on a face of cylinder, and the gyroaxis 143 of the axis on this face of cylinder and cam 141 departs from.For the present invention clearly is described, with being defined as cam outer rim 1411 on cam 141 working faces near the bus of fixture block 2301 grooveds depression bottom surface.
The grooved depression of fixture block 2301 forms a passage 2311 with cam 141.The wall of passage 2311 is: the two side 2301 and 2303 of the grooved depression of setting up relatively, the grooved of setting up relatively depression bottom surface 2302 and cam outer rim 1411.
As shown in Figure 9, the height of passage 2311 is limited two side 2301 and 2303.The setting of this height is relevant with the outline perpendicular to first type surface of the free end 322 of intermediate plate 32.When this outline is one when being the circular arc in the center of circle with first pivot 6, this highly is a minimum of a value.In fact, free end 322 outer contour shapes can be other shapes, rectangle for example, and this highly can correspondingly suitably increase, and makes it to adapt with free end 322 outer contour shapes.
The width of passage 2311 is limited with cam outer rim 1411 grooved depression bottom surface 2302.Among Fig. 9; When cam 141 rotates on axle 143; Its cam outer rim 1411 positions are move left and right with cam 141 rotations; Make the width generation respective change of passage 2311, cam 141 and said intermediate plate 32 have and contact or break away from two states, thereby clamp or loosen the free end 322 of the intermediate plate 32 that penetrates passage 2311.It is thus clear that the design of cam 141 should make the width minimum of a value of passage 2311 should be slightly less than the thickness of the free end 322 of intermediate plate 32.
As shown in Figure 7, cam 141 is connected with operating grip 140, or cam 141 is one-body molded with operating grip 140.Referring to Figure 11, cam 141 should be designed to the correlation of operating grip 140: when operating grip 140 was basically parallel to intermediate plate 32, cam 141 was in and the intermediate plate contact position; When operating grip 140 rotated a angle less than 90 degree, cam 141 disengaged with intermediate plate.。
Below in conjunction with Figure 10, Figure 11,, its operation principle is described through the method for using of spring clip of the present invention.
Shown in figure 11, spring clip does not have active force at closure state on the operating grip 140.Torsion spring 142 (ginseng Figure 10) actuating cam 141; Because the frictional force effect between free end 322 first type surfaces 3201 of cam outer rim 1411 (ginseng Figure 10) and intermediate plate 32; The width of passage 2311 arrives minimum position, and intermediate plate 32 is locked, and spring clip keeps stable closure state.
When desire spurred first main body 10 and opens retained part, if pressing operation handle 140 not, owing to be an acute angle angle of friction between cam 141 and the first type surface 3201, the power that spurs intermediate plate 32 can drive cam 141, makes both push tightlyer.So, be locked more firmly between cam 141 and the intermediate plate 32.Therefore, the present invention has realized the self-locking of first main body 10 and second main body 20 by above-mentioned simple structure.
When desire spurs first main body 10 and opens retained part, and direction of arrow pressing operation handle 40 simultaneously as among the figure, promoting the thrust that operating grip 140 overhead cams 141 overcome torsion spring 142, the direction that cam outer rim 1411 phases away from intermediate plate 32 moves.So, cam 141 disengages with intermediate plate 32, and frictional force disappears, and intermediate plate 32 is released, and first main body 10 can be pulled, and retained part is opened.
In the aforesaid operations, only need the user with can realizing with a finger pressing operation handle 140 on the other hand, thus the present invention have control easy, the advantage of one-hand operation.
When retained part reaches predetermined aperture, remove pushing to operating grip 140.Because the active force on the operating grip 140 disappears, the active force of torsion spring 142 plays a role, and actuating cam 141 moves to intermediate plate 32 once more, and between generation frictional force, and intermediate plate 32 is locked.At this moment, the aperture of spring clip is maintained at a stable status, provides convenience for the operator uses.
When needs are adjusted the retained part aperture once more, only need the user with a finger pressing operation handle 140 with proficiency, can realize.
The present invention is owing to be provided with the structure that cam 141 is connected with operating grip 140; Utilize operating grip 140 or torsion spring 142; Rotation through actuating cam 141; Realize the clamping or the disengaging of 141 pairs of intermediate plates 32 of cam, realized the technical purpose that the aperture of spring clip can stepless adjustment, improved the applicable performance of spring clip.
The friction pair element that the present invention forms cam 141 and intermediate plate 32 is to being arranged in intermediate plate 32 surfaces and contacting and rubbing.Because this plane is comparatively roomy, can long line contact be arranged in the contact site, the wear extent that cam 141 and intermediate plate are 32 is very little.Therefore, lower to the material requirements of friction pair element, can use reliably and with long-term, cost is lower.And the present invention is surperficial as the rubbing surface that contacts with cam 141 with intermediate plate 32, and is less demanding to the outer contour shape of intermediate plate 32; It can be circular arc; Also can be rectangle or other elongate in shape, not high to the size tolerance requirements on intermediate plate 32 widths yet, reduced processing cost.
In other embodiments of the invention, the articulated section of first main body and second main body also can be positioned at the end of first main body and second main body.
More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that this area need not creative work and just can design according to the present invention make many modifications and variation.Therefore, all technical staff in the art all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology through the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. spring clip comprises:
First main body, it comprises grip portions and retained part;
Second main body, it comprises grip portions and retained part;
With first main body and second main body pivotly be linked together first pivot element; With
A retaining mechanism is made up of at least one pair of friction pair parts; Said friction pair parts centering,
The first friction pair parts are arranged on first main body, comprise the first friction pair element;
The second friction pair parts are arranged on second main body, comprise the second friction pair element;
It is right that first, second friction pair element in the friction pair parts of said paired setting constitutes a friction pair element, plays locking action through the phase mutual friction;
It is characterized in that: said friction pair element is to mainly rubbing in the plane perpendicular to the said first pivot element axis.
2. spring clip as claimed in claim 1; It is characterized in that: said retaining mechanism also comprises a release mechanism; Be used to remove the locking between said first, second friction pair element; Said release mechanism comprises an operating grip, presses said operating grip through press...withing one's finger, and said release mechanism is played remove the effect that locks between said first, second friction pair element.
3. like the described spring clip of arbitrary claim in the claim 1 to 2; It is characterized in that: the said first friction pair parts are arranged on first main body regularly; The said second friction pair parts are arranged on second main body regularly; The said first friction pair element is a strip tablet, has at least one and is positioned at the first type surface with the plane of the first pivot element axis approximate vertical, as the rubbing surface that contacts with the second friction pair element.
4. spring clip as claimed in claim 3 is characterized in that: the said second friction pair element is at least one needle roller; The said second friction pair parts comprise:
The fixture block that the said first friction pair element can penetrate, the relative both sides of said fixture block are provided with bar hole, are provided with the needle roller that at least one end exposes to said bar hole in the said bar hole; After the said first friction pair element penetrates fixture block, constitute an angle between said bar hole and the said first friction pair element so that the said needle roller in the said bar hole and the said first friction pair element have and contact or break away from two states; With
A needle roller retainer plate; The outside that is arranged on said fixture block through flexible member to be limiting the axial freedom of said needle roller, and can in said bar hole, move to the direction of the said first friction pair element of contact promoting said needle roller under the effect of said flexible member;
The operate portions of said control handle can promote said needle roller and in said bar hole, move to the direction that breaks away from the said first friction pair element in turn.
5. spring clip as claimed in claim 3 is characterized in that: the said second friction pair element is at least one wedge; The said second friction pair parts comprise:
The fixture block that the said first friction pair element can penetrate, the relative both sides of said fixture block are provided with the wedge guide groove, are provided with the wedge that at least one end exposes to said wedge guide groove in the said wedge guide groove; After the said first friction pair element penetrates fixture block, constitute an angle between said wedge guide groove and the said first friction pair element so that the said wedge in the said wedge guide groove and the said first friction pair element have and contact or break away from two states; With
A wedge retainer plate; The outside that is arranged on said fixture block through flexible member to be limiting the axial freedom of said wedge, and can in said wedge guide groove, move to the direction of the said first friction pair element of contact promoting said wedge under the effect of said flexible member;
The operate portions of said control handle can promote said wedge and in said wedge guide groove, move to the direction that breaks away from the said first friction pair element in turn.
6. spring clip as claimed in claim 3 is characterized in that: the said second friction pair element is at least one eccentric cam; The said second friction pair parts comprise:
The fixture block that the said first friction pair element can penetrate; With
A cam is hubbed on the said fixture block through a torsion spring; After the said first friction pair element penetrated fixture block, the rotation of said cam had said cam and the said first friction pair element to contact or breaks away from two states;
And said operating grip and cam are one-body molded, and the turn of said control handle can promote the said first friction pair element of said cam disengages.
7. spring clip as claimed in claim 2 is characterized in that: have semi-open cavity in said first main body and/or said second main body; At least a portion of said friction pair parts is arranged in the said cavity; Said operating grip is arranged in the said cavity, and at least a portion of said operating grip is positioned at outside the said cavity when clamped condition.
8. spring clip as claimed in claim 3 is characterized in that: the said first friction component is a circular arc; The thickness of the said first friction component is roughly even.
9. spring clip as claimed in claim 1 is characterized in that: the retained part of said first main body and/or said second main body is provided with active chuck; Said first main body and said second main body partly or entirely be coated with soft clad.
10. spring clip as claimed in claim 1 is characterized in that: with said first main body and said second main body be linked together said first pivot element have a torsion spring, between said first main body and said second main body, to apply a tension force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010613522.0A CN102528686B (en) | 2010-12-15 | 2010-12-15 | Spring clip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010613522.0A CN102528686B (en) | 2010-12-15 | 2010-12-15 | Spring clip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102528686A true CN102528686A (en) | 2012-07-04 |
| CN102528686B CN102528686B (en) | 2015-07-08 |
Family
ID=46337374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010613522.0A Expired - Fee Related CN102528686B (en) | 2010-12-15 | 2010-12-15 | Spring clip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102528686B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400682A (en) * | 2014-11-20 | 2015-03-11 | 无锡锡山安达防爆电气设备有限公司 | Adjustable clamping pliers |
| CN105167822A (en) * | 2015-10-13 | 2015-12-23 | 哈尔滨理工大学 | Stepless self-locking type tonsillectomy forceps and clamping method |
| CN109056476A (en) * | 2018-08-30 | 2018-12-21 | 中国冶集团有限公司 | A kind of self controllable type fixture and its kerbstone used are laid with platform |
| CN109732500A (en) * | 2019-02-28 | 2019-05-10 | 绍兴三鼎工具有限公司 | Spring clip |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2654283Y (en) * | 2003-09-29 | 2004-11-10 | 上海朝华工具有限公司 | Pressure regulatable notch wheel clamp |
| CN2659636Y (en) * | 2003-10-22 | 2004-12-01 | 张庆宗 | Improved structure in spring clamp |
| CN2659635Y (en) * | 2003-10-23 | 2004-12-01 | 张庆宗 | Improved structure in clamp |
| CN2803626Y (en) * | 2005-05-20 | 2006-08-09 | 刘逢忠 | Improved structure of pinch clamp |
| US20070102248A1 (en) * | 2005-11-08 | 2007-05-10 | Hsu Chin L | Clamping device having stepless braking effect |
| CN201098850Y (en) * | 2007-11-28 | 2008-08-13 | 南京工业职业技术学院 | Self-adjusting vice grip |
| CN202062318U (en) * | 2010-12-15 | 2011-12-07 | 杭州巨星科技股份有限公司 | Spring clamp |
-
2010
- 2010-12-15 CN CN201010613522.0A patent/CN102528686B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2654283Y (en) * | 2003-09-29 | 2004-11-10 | 上海朝华工具有限公司 | Pressure regulatable notch wheel clamp |
| CN2659636Y (en) * | 2003-10-22 | 2004-12-01 | 张庆宗 | Improved structure in spring clamp |
| CN2659635Y (en) * | 2003-10-23 | 2004-12-01 | 张庆宗 | Improved structure in clamp |
| CN2803626Y (en) * | 2005-05-20 | 2006-08-09 | 刘逢忠 | Improved structure of pinch clamp |
| US20070102248A1 (en) * | 2005-11-08 | 2007-05-10 | Hsu Chin L | Clamping device having stepless braking effect |
| CN201098850Y (en) * | 2007-11-28 | 2008-08-13 | 南京工业职业技术学院 | Self-adjusting vice grip |
| CN202062318U (en) * | 2010-12-15 | 2011-12-07 | 杭州巨星科技股份有限公司 | Spring clamp |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400682A (en) * | 2014-11-20 | 2015-03-11 | 无锡锡山安达防爆电气设备有限公司 | Adjustable clamping pliers |
| CN105167822A (en) * | 2015-10-13 | 2015-12-23 | 哈尔滨理工大学 | Stepless self-locking type tonsillectomy forceps and clamping method |
| CN105167822B (en) * | 2015-10-13 | 2018-08-31 | 哈尔滨理工大学 | Stageless self-locking formula operation on tonsils nipper and grasping means |
| CN109056476A (en) * | 2018-08-30 | 2018-12-21 | 中国冶集团有限公司 | A kind of self controllable type fixture and its kerbstone used are laid with platform |
| CN109056476B (en) * | 2018-08-30 | 2020-08-18 | 中国一冶集团有限公司 | Self-controllable clamp and kerbstone laying platform used by same |
| CN109732500A (en) * | 2019-02-28 | 2019-05-10 | 绍兴三鼎工具有限公司 | Spring clip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102528686B (en) | 2015-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2821988C (en) | Spring clamp | |
| CN202062318U (en) | Spring clamp | |
| CN102528686B (en) | Spring clip | |
| US7726217B2 (en) | Self-adjusting locking pliers | |
| WO2011081209A1 (en) | Linear stopper | |
| CN100411818C (en) | Clamping and/or bracing tool comprising a connecting or tie rod | |
| US7509895B2 (en) | Self-adjusting locking pliers | |
| CN1923464B (en) | Ratchet clamp | |
| US7669505B2 (en) | Pin lock pliers | |
| US6378404B1 (en) | Self-adjusting and/or self-locking pliers | |
| US20080088071A1 (en) | Release mechanism of bar clamp | |
| US20220097211A1 (en) | Manual clamp | |
| CN110191764B (en) | Paste pressing gun | |
| JP5638304B2 (en) | Clamping device | |
| CN206632885U (en) | A kind of ratchet mechanism and a kind of ratchet wheel clamp of misplace locking and release | |
| US20090320650A1 (en) | Adjustable wrench | |
| CN108262699A (en) | A kind of ratchet mechanism and a kind of ratchet wheel clamp of misplace locking and release | |
| TWI406744B (en) | Plier | |
| EP2098331B1 (en) | Handheld grinder | |
| CN214258186U (en) | Belt buckle | |
| CN215723084U (en) | Rotation axis only stops lock and stage lamp | |
| JP3825385B2 (en) | Cutting ruler | |
| TWM289680U (en) | Screwdriver capable of setting torsion | |
| TW201615354A (en) | Ratchet wrench structure | |
| CN2536352Y (en) | Improved tools |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20201215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |