CN2537519Y

CN2537519Y - Vacuum suction pen

Info

Publication number: CN2537519Y
Application number: CN 01258320
Authority: CN
Inventors: 万海如
Original assignee: Shunda Computer Factory Co Ltd
Current assignee: Shunda Computer Factory Co Ltd
Priority date: 2001-11-30
Filing date: 2001-11-30
Publication date: 2003-02-26
Anticipated expiration: 2011-11-30

Abstract

The utility model relates to a vacuum chuck, comprising a valve body, a valve core and a suction nozzle. An air inlet is communicated with a vacuum pump and arranged on valve body. The air is pumped out by the vacuum pump, and negative pressure is produced in the vacuum chuck. Therefore, the electronic component waiting for moving is absorbed by the high differential pressure inside and outside the vacuum chuck.

Description

Vacuum WAND

The utility model relates to the pick device of electronic devices and components, and is particularly related to a kind of vacuum equipment that utilizes and produces vacuum WAND than strong suction.

In the mobile and installation process of electronic devices and components, the most common situation is still utilized the operation of manually being correlated with at present, consider the requirement of the antistatic of electronic devices and components, operating personnel are necessary static electrification gloves when operation, otherwise the q﹠r of these electronic devices and components all is difficult to guarantee.

In addition, now some relate on the production line of electronic devices and components and also bring into use a kind of equipment of passive vacuum WAND that cries to pick up electronic devices and components, especially some volumes are less, the electronic devices and components that weight is lighter, it is similar with general pen to inhale a global shape and size, only be provided with a sucker picking up end, afterbody then is provided with a button, when pressing the button, this button drives the exhaust apparatus of vacuum WAND body of rod inside and the air of penholder inside is discharged, cause the inner generation of penholder negative pressure, thereby under the effect of external atmospheric pressure, corresponding electronic devices and components are held by sucker.

Yet above-mentioned passive vacuum WAND exists some problems, makes that they are not very convenient when using.At first, the most a bit be exactly that the suction that produced is too little, when electronic devices and components are big slightly and heavier, just can't hold firmly, in carrying or mobile process, fall down easily like this; Secondly, what be used to hold electronic component is sucker, and generally these suckers are all changeless and can't change, and can not absorb bigger electronic component or special-shaped part; The button that is exactly these passive vacuum WANDs usually more all is arranged on the sidewall of penholder, and such set-up mode does not meet common people's custom mode of operation, causes the actual effect of this passive vacuum WAND in the process of practice also bad.

The purpose of this utility model provides a kind of convenient use, has than strong suction and meets the vacuum WAND of common people's custom mode of operation.

For achieving the above object, vacuum WAND described in the utility model mainly is made up of the spool that a valve body and is set in this valve body.The head of valve body (promptly picking up end) is connected with a suction nozzle by the mode that is threaded, and the tail end of valve body then is provided with a flexible button of vertical direction up and down according to common people's custom mode of operation, and this button and this spool are connected as a body.The sidewall of valve body is provided with at least one first exhaust outlet and one air inlet, this air inlet links to each other with a vavuum pump by snap joint simultaneously, the inside of spool then offers a gas channel, and also is provided with first through hole and and an above-mentioned air inlet position corresponding second through hole corresponding with above-mentioned first exhaust outlet on the sidewall of spool.In addition, also be provided with a flexible member between described valve body and the spool.

By above-mentioned technical scheme, when pressing the button, flexible member between described valve body and the spool is compressed, spool moves downward, make simultaneously on the spool first through hole and stagger in the first exhaust outlet position on the valve body and no longer be communicated with, second through hole on the spool is then just in time opposite, it moves downward and overlaps and communicate with air inlet position on the valve body, the air in the valve body under the effect of vavuum pump was drawn out of and was negative pressure this moment, electronic component can be held firmly by the suction nozzle that picks up end under the bigger differential pressure action inside and outside the valve body like this.In the time of release button, spool resets under the effect of flexible member, and valve inner communicates again with atmosphere, and this moment, electronic component was just released.

As follows below by a most preferred embodiment and accompanying drawings, wherein:

Fig. 1 is the cut-away view of the described vacuum WAND of present embodiment;

Fig. 2 is the user mode figure of the described vacuum WAND of present embodiment.

Please refer to Fig. 1, the utility model is a kind of novel vacuum WAND that is used to pick up with the mobile electron components and parts, and its main body is a valve body 30, and in present embodiment, this valve body 30 is the cylinder of a cylindrical and hollow.The certain position place offers at least one first exhaust outlet 31 and one air inlet 33 on these valve body 30 sidewalls, wherein, this first exhaust outlet 31 and this air inlet 33 stagger on the axis direction of valve body 30 certain distance are arranged, in addition, valve body 30 inner ends (being the end that picks up of vacuum WAND) also offer two step cutting pattern faces 34, also offer one second steam vent 32 by these two step cutting pattern faces 34, this second steam vent 32 is connected with the suction nozzle 10 that is arranged at valve body 30 these ends, as shown in Figure 1, this suction nozzle 10 is to link together by the mode that is threaded with this valve body 30 in present embodiment.The other end of valve body 30 then is provided with a top cover 50, and the effect of this top cover 50 is to prevent that the air in the valve body 30 from leaking.

Still please refer to Fig. 1, be with a spool 40 in the above-mentioned valve body 30, axis direction along this spool 40 offers a gas channel 43 in spool 40 inside, in this vacuum WAND work, air-flow is a process in this gas channel 43, one end of gas channel 43 is openings, the other end then seals, and this blind end also is fixed with a button 60, this button 60 passes the holes in the above-mentioned top cover 50 and stretches out outside the above-mentioned valve body 30, and button 60 can move in described valve body 30 with spool 40 along the axis direction of spool 40 simultaneously.

In addition, also be provided with first through hole 41 corresponding and the air inlet 33 position corresponding second through hole 42 on a position and the valve body 30 on the sidewall of spool 40 with first exhaust outlet 31 on the above-mentioned valve body 30.In addition, be arranged with a flexible member 20 between two the step cutting pattern faces 34 in above-mentioned valve body 30 and the openend of gas channel 43, this flexible member 20 is springs in present embodiment.When this flexible member 20 is in the nature extended configuration (being the state shown in Fig. 1), it just in time can be so that first through hole 41 of spool 40 be connected with first exhaust outlet 31 of above-mentioned valve body 30, guarantee second through hole 42 of spool 40 and air inlet 33 on the valve body 30 certain distance that staggers simultaneously, as shown in fig. 1, the position of second through hole 42 will more close button 60 than air inlet 33.With reference to state shown in Figure 1, because this moment, first through hole 41 was to communicate with gas channel 43 in the spool 40, therefore this moment, whole vacuum WAND was since first exhaust outlet 31, and form a path that communicates with ambient atmosphere to suction nozzle 10 again along these gas channel 43 to second exhaust outlets 32, that is to say this moment vacuum pencil inside and external atmosphere pressure between without any draught head.

Next see also Fig. 2, Fig. 2 is the user mode figure of the described vacuum WAND of present embodiment.As shown in Figure 2, move or electronic component to be installed (as chip etc.) time, a snap joint 70 will be installed on the air inlet on the valve body 30 33 at first, link to each other with a vavuum pump 80 by this snap joint 70 when using this vacuum WAND to hold to wait.Then, directly press the button 60 (directions shown in arrow among Fig. 2), make its promote spool 40 in valve body 30 from Fig. 1 residing position and state towards suction nozzle 10 sub direction move.In the process that spool 40 moves, withstand on flexible member 20 on the step surface 34 of inner chamber of valve body 30 by these spool 30 compressions, first through hole 41 that first exhaust outlet 31 original simultaneously and on the valve body 30 communicates is movement therewith also, and no longer communicates with above-mentioned first exhaust outlet 31.The then equidirectional motion of second through hole 42 on the spool 40 at this moment, when it moves to snap joint 70 present positions, 42 of second through holes and vavuum pump 80 are also connected, then under the effect of vavuum pump 80, air-flow channel 43 to second through holes 42 of air in the valve body 30 in the spool 40 are sucked away to the path of vavuum pump 80 again, thereby in valve body 30, produce " negative pressure ", like this under the effect of vavuum pump 80, the inside and outside pressure reduction of the described vacuum pencil of present embodiment can be bigger, therefore the suction that passive vacuum WAND produced than commonly used at present is bigger, inhales more firmly.

And after waiting that the electronic building brick that moves or install has been moved to the destination or has installed, this moment release button 60, under the resilient force of elastic parts 20, spool 40 is back to original position (being position shown in Figure 1) by the top again, the inside that is to say valve body 30 communicates with ambient atmosphere again, then inside and outside differential pressure reverts to zero again, so the electronic building brick that originally is attracted to this moment on the suction nozzle 10 also just comes with the vacuum WAND disengaging.

So far, most preferred embodiment of the present utility model is illustrated, and various variations or the remodeling done by the one of ordinary skilled in the art can not depart from the scope of the present invention.

Claims

1. a vacuum WAND comprises at least one suction nozzle, it is characterized in that this device also comprises at least:

One valve body, the one end is connected with said suction nozzle, and the other end then is provided with an end cap that is used to seal, and is hollow in the middle of this valve body, its sidewall is provided with first exhaust outlet that staggers at least one position, second exhaust outlet that an air inlet and one communicate with said suction nozzle;

One spool, it is enclosed within the inner chamber of above-mentioned valve body, and the inside of this spool also offers a gas channel, and also is provided with first through hole and a position and an above-mentioned air inlet position corresponding second through hole corresponding with above-mentioned first exhaust outlet on the sidewall of this spool;

One flexible member, it is set in the above-mentioned valve body, and these flexible member two ends lean respectively on this valve body and spool.

2. vacuum WAND as claimed in claim 1 is characterized in that, an end of said spool also is provided with a button, and this button is to be fixed together with described spool and to pass described end cap and stretch out outside the valve body.

3. vacuum WAND as claimed in claim 1 is characterized in that, an end of the gas channel that described valve core inside is offered seals, and the other end then is an opening.

4. as claim 1 or 3 described vacuum WANDs, it is characterized in that an end of described flexible member is fixed on the openend of the gas channel of described spool, an other end then leans on described valve body.

5. vacuum WAND as claimed in claim 4 is characterized in that, described flexible member can be a spring.

6. vacuum WAND as claimed in claim 1, it is characterized in that, when described flexible member is in free state, first through hole on the described spool just in time is communicated with first exhaust outlet on the described valve body, simultaneously described valve on new second through hole and the position of the air inlet on the described valve body stagger.

7. vacuum WAND as claimed in claim 1 is characterized in that, described air inlet links to each other with a vavuum pump.

8. vacuum WAND as claimed in claim 1 is characterized in that, described suction nozzle is to link together by the mode that is threaded with valve body.