CN202156053U - Exhaust push rod - Google Patents
Exhaust push rod Download PDFInfo
- Publication number
- CN202156053U CN202156053U CN2011201952846U CN201120195284U CN202156053U CN 202156053 U CN202156053 U CN 202156053U CN 2011201952846 U CN2011201952846 U CN 2011201952846U CN 201120195284 U CN201120195284 U CN 201120195284U CN 202156053 U CN202156053 U CN 202156053U
- Authority
- CN
- China
- Prior art keywords
- push rod
- rod cup
- rear end
- cup body
- slider head
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an exhaust push rod, which comprises a push rod head at the front end and a push rod body connected with the push rod head. The push rod head comprises a push rod head body and a slider, the push rod body is provided with a ventilation cavity, at least one vent hole is arranged in the push rod head body, the front end of each vent hole is communicated with the outside of the front end of the push rod head body, and the rear end of each vent hole is communicated with the ventilation cavity. A sliding shaft is connected to the rear end of the slider and penetrates through the push rod head body, a limiting block is connected to the rear end of the sliding shaft and positioned in the ventilation cavity, and at least one spring is arranged between the slider and the push rod head body. The exhaust push rod is arranged in a push cylinder, negative pressure cannot be generated in a push cavity during retracting of the push rod, and accordingly formed materials cannot be taken back along with the retraction of the push rod, waste and losses of the materials are avoided, and quality of products is improved.
Description
Technical field
The utility model relates to a kind of push rod that is arranged in the pushing cylinder.
Background technology
Push rod cup at first is placed on pushing away in the chamber of pushing cylinder with material when work, push rod moves in pushing away the chamber then, thereby material is inwardly pushed, and material is extruded from the discharging opening of pushing cylinder.Present employed push rod comprises push rod cup that is positioned at front end and the pusher body that is connected with push rod cup, and its push rod cup and pusher body are structure as a whole.The shortcoming of present employed push rod is: after the push rod pusher is accomplished; Push rod is in the process of retraction; Because pushing away the chamber is basic hermetic cavity body, pushes away the inner generation in chamber negative pressure, thereby the in type material of part is taken back along with the retraction of push rod; Thereby cause the waste and the loss of material, influence Products Quality.
The utility model content
The utility model technical problem to be solved is: provide a kind of push rod toward the retraction process in, push away the exhaust push rod that inside, chamber can not produce negative pressure.
For addressing the above problem, the technical scheme that the utility model adopts is: exhaust push rod comprises push rod cup that is positioned at front end and the pusher body that is connected with push rod cup; Said push rod cup comprises push rod cup body and slider head, is provided with venting cavity in the said pusher body, is provided with at least one passage in the push rod cup body; The front end of passage is connected with the front end outside of push rod cup body, and the rear end of passage is connected with venting cavity, and the rear end of slider head is connected with sliding axle; Sliding axle penetrates the push rod cup body; Its rear end is connected with limited block, and limited block is arranged in venting cavity, is provided with at least one spring between slider head and the push rod cup body.
Be provided with four passages in the said push rod cup body; Four passages evenly distribute along annular; The front end of four passages is respectively arranged with rearward recess; The rear end of slider head is respectively arranged with forward recess with four corresponding positions of rearward recess, is provided with four springs between described slider head and the push rod cup body, and the two ends of spring are separately positioned in forward recess and the rearward recess.
The front end of said push rod cup body is provided with the circular platform type groove, and the rear end of said slider head is provided with the circular platform type boss that matches with the circular platform type groove.
The beneficial effect of the utility model is: above-mentioned exhaust push rod, and simple in structure, easy to use.In the process of retraction,, realized pushing away the air inlet in chamber at push rod through moving automatically of slider head; Thereby make and push away inside, chamber and can not produce negative pressure; Thereby in type material can not taken back along with the retraction of push rod, can not cause the waste and the loss of material, improved Products Quality.
Description of drawings
Fig. 1 is the structural representation of the utility model exhaust push rod;
Fig. 2 is the sectional structure sketch map that slider head is in the state of stretching out in the utility model exhaust push rod;
Fig. 3 is the sectional structure sketch map of A-A direction among Fig. 2;
Among the figure: 1, pusher body, 2, the push rod cup body, 3, slider head, 4, venting cavity, 5, passage, 6, sliding axle, 7, limited block, 8, spring, 9, rearward recess, 10, forward recess, 11, the circular platform type groove, 12, the circular platform type boss.
The specific embodiment
Through specific embodiment the utility model exhaust push rod is done further to describe in detail below.
Like Fig. 1, shown in Figure 2, exhaust push rod comprises the push rod cup and the pusher body that is connected with push rod cup 1 that are positioned at front end; Said push rod cup comprises push rod cup body 2 and slider head 3, is provided with venting cavity 4 in the said pusher body 1, and is as shown in Figure 3; Be provided with 5, four passages of four passages 5 in the push rod cup body 2 and evenly distribute along annular, the front end of passage 5 is connected with the front end outside of push rod cup body 2; The rear end of passage 5 is connected with venting cavity 4, and the rear end of slider head 3 is connected with sliding axle 6, and sliding axle 6 penetrates push rod cup body 2; Its rear end is connected with limited block 7, and limited block 7 is arranged in venting cavity 4, during actual installation; Can adopt bolt to replace sliding axle 6 and limited block 7, the front end that is provided with 8, four passages 5 of four springs between slider head 3 and the push rod cup body 2 is respectively arranged with rearward recess 9; The rear end of slider head 3 is respectively arranged with forward recess 10 with four rearward recess, 9 corresponding positions, and the two ends of spring 8 are separately positioned in forward recess 10 and the rearward recess 9.The front end of said push rod cup body 2 is provided with circular platform type groove 11, and the rear end of said slider head 3 is provided with the circular platform type boss 12 that matches with circular platform type groove 11.
The operation principle of the utility model is: when above-mentioned exhaust push rod pushes away material forward; Since push away the pressure effect in the chamber, slider head 3 holddown springs 8, and circular platform type boss 12 embeds in the circular platform type groove 11; Slider head 3 fits with push rod cup body 2, thereby realizes pushing away the action of material; After pusher was accomplished, pusher body 1 drove the push rod cup withdrawal, and exert pressure chamber in no longer for slider head 3 owing to pushing away this moment; Slider head 3 ejects forward under the effect of spring 8; Push away in the chamber thereby extraneous air is got into passage 5 through venting cavity 4, make the pressure and the external balance that push away in the chamber, thereby in type material can not taken back along with the retraction of push rod; Can not cause the waste and the loss of material, improve Products Quality.
The above embodiments are the principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not is used to limit the utility model; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model creation design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.
Claims (3)
1. exhaust push rod, comprise it is characterized in that push rod cup that is positioned at front end and the pusher body that is connected with push rod cup: said push rod cup comprises push rod cup body and slider head; Be provided with venting cavity in the said pusher body, be provided with at least one passage in the push rod cup body, the front end of passage is connected with the front end outside of push rod cup body; The rear end of passage is connected with venting cavity; The rear end of slider head is connected with sliding axle, and sliding axle penetrates the push rod cup body, and its rear end is connected with limited block; Limited block is arranged in venting cavity, is provided with at least one spring between slider head and the push rod cup body.
2. exhaust push rod according to claim 1; It is characterized in that: be provided with four passages in the said push rod cup body; Four passages evenly distribute along annular, and the front end of four passages is respectively arranged with rearward recess, and the rear end of slider head is respectively arranged with forward recess with four corresponding positions of rearward recess; Be provided with four springs between described slider head and the push rod cup body, the two ends of spring are separately positioned in forward recess and the rearward recess.
3. exhaust push rod according to claim 1 and 2 is characterized in that: the front end of said push rod cup body is provided with the circular platform type groove, and the rear end of said slider head is provided with the circular platform type boss that matches with the circular platform type groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201952846U CN202156053U (en) | 2011-06-12 | 2011-06-12 | Exhaust push rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201952846U CN202156053U (en) | 2011-06-12 | 2011-06-12 | Exhaust push rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202156053U true CN202156053U (en) | 2012-03-07 |
Family
ID=45763699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201952846U Expired - Lifetime CN202156053U (en) | 2011-06-12 | 2011-06-12 | Exhaust push rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202156053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390705A (en) * | 2011-06-12 | 2012-03-28 | 江苏维达机械有限公司 | Exhaust push rod |
-
2011
- 2011-06-12 CN CN2011201952846U patent/CN202156053U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390705A (en) * | 2011-06-12 | 2012-03-28 | 江苏维达机械有限公司 | Exhaust push rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120307 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |