CN209124275U - Double scraper exhaust pitions - Google Patents
Double scraper exhaust pitions Download PDFInfo
- Publication number
- CN209124275U CN209124275U CN201821807144.8U CN201821807144U CN209124275U CN 209124275 U CN209124275 U CN 209124275U CN 201821807144 U CN201821807144 U CN 201821807144U CN 209124275 U CN209124275 U CN 209124275U
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- scraper
- piston
- double
- exhaust
- pitions
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Abstract
The utility model discloses a kind of double scraper exhaust pitions, are related to piston technical field, it is intended to solve the problems, such as that existing double scraper piston frictioning effects are bad, exhaust effect is bad.Its key points of the technical solution are that, including piston only, preceding scraper and rear scraper, preceding scraper and rear scraper are coaxial and are separately positioned on the both ends of piston only, the circumferential direction of piston only is provided with annular surface on preceding scraper and rear scraper, several protrusions are evenly distributed on each annular surface, piston only passes through the protrusion on two annular surfaces simultaneously and abuts with the inner sidewall of packing element, has the advantages that frictioning effect is good, exhaust effect is good.
Description
Technical field
The utility model relates to piston technical fields, more particularly, to a kind of double scraper exhaust pitions.
Background technique
Packing element is the container that glue is stored in pneumatic point glue equipment, and wherein the most key component of packing element is piston, cylinder
Piston is pushed to move in packing element, piston pushes the glue in packing element to squeeze out from the syringe needle of packing element, to realize mistake for dispensing glue
Journey.
Existing Authorization Notice No. discloses a kind of double scraper pistons of equal outer diameters for the Chinese patent of CN205797656U, including
Piston only, piston only is concentric to be provided with the identical preceding scraper of diameter and rear scraper, and piston only passes through preceding scraper simultaneously
It is abutted with rear scraper with packing element inner sidewall, can effectively wipe the glue on packing element inner sidewall off, also effectively prevent dispensing process
The shaking of middle piston only.
But prior art among the above has the following deficiencies: the frictioning effect in order to make preceding scraper and rear scraper
More preferably, there will be a relatively large contact area between preceding scraper and rear scraper and packing element inner sidewall, but contact area
Excessive, will lead to the gas in packing element cannot be discharged by preceding scraper and rear scraper, and exhaust effect is bad.
Utility model content
It is good with frictioning effect, exhaust effect is good the purpose of the utility model is to provide a kind of double scraper exhaust pitions
Advantage.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of double scraper exhaust pitions, including piston only, preceding scraper and rear scraper, the preceding scraper and rear scraper are coaxial
And the both ends of piston only are separately positioned on, the circumferential direction of piston only is provided with annular on the preceding scraper and rear scraper
Face, several protrusions are evenly distributed on each annular surface, and the piston only passes through simultaneously on two annular surfaces
Protrusion is abutted with the inner sidewall of packing element.
By using above-mentioned technical proposal, at work, piston only passes through two annulars to double scraper exhaust pitions simultaneously
All protrusions on face are abutted with the inner sidewall of packing element, effectively increase frictioning effect.Each protrusion is contacted with packing element inner sidewall
Area it is smaller, the air in packing element can be discharged by the gap between protrusion, effectively increase preceding scraper and rear scraper
Exhaust effect.
The utility model is further arranged to: the protrusion is spherical in one third.
By using above-mentioned technical proposal, the contact area of protrusion with packing element is reduced, multiple protrusions contact with each other and phase
Mutually cooperation, further increases frictioning effect and exhaust effect.
The utility model is further arranged to: the width of the annular surface is 3-5 μm.
The utility model is further arranged to: the protrusion is 0.2-0.3 μm along the size of annular surface width direction.
By using above-mentioned technical proposal, annular surface is abutted by protrusion with packing element inner sidewall, is not influenced piston only and is existed
Sliding in packing element.
The utility model is further arranged to: the piston only is annular in shape, and the preceding scraper and rear scraper are respectively by living
The both ends outward bending of plug body is formed.
By using above-mentioned technical proposal, preceding scraper and rear scraper and piston only, which are integrally formed, to be designed, more conducively piston
Ontology slides in packing element, but also preceding scraper and rear scraper are more stable at work.
The utility model is further arranged to: the piston only is connected with piston head by one end of nearby scraper, described
Capacity chamber is formed between piston head and preceding scraper；First is connected between the preceding scraper and piston head and in capacity chamber
Stiffening plate.
By using above-mentioned technical proposal, increase before scraper structural strength so that its service life is longer.
The utility model is further arranged to: the piston head includes interconnecting piece and cone head part, the interconnecting piece and piston
Outside ontology connection and stretching capacity chamber；The cone head part is connected to one end that interconnecting piece stretches out capacity chamber, first stiffening plate
Before being connected between scraper and interconnecting piece.
The utility model is further arranged to: arc-shaped transition between the interconnecting piece and cone head part.
By using above-mentioned technical proposal, piston head has the function of guiding, arc-shaped mistake between interconnecting piece and cone head part
It crosses, more conducively piston head is extend into glue, and is not easy to remain glue between interconnecting piece and cone head part.
The utility model is further arranged to: scraper is formed by one end outward bending of piston only after described, before described
Scraper is bent to form in scraper direction backward by the other end of piston only.
By using above-mentioned technical proposal, preceding scraper is bent to form in scraper direction backward by the other end of piston only, energy
Scraper is easier to slide on packing element inner sidewall, having reached can make piston only in glue when pushing to glue direction before enough making
The effect of smooth sliding in cylinder.
The utility model is further arranged to: being connected with the second reinforcement between the preceding scraper and the lateral wall of piston only
Plate.
By using above-mentioned technical proposal, the structural strength of scraper before increasing, so that it is hardly damaged, to ensure that
The job stability of the utility model.
In conclusion the advantageous effects of the utility model are as follows:
1. there is the advantage that frictioning effect is good, exhaust effect is good by the setting of annular surface and protrusion；
2. further increasing frictioning effect and exhaust effect by setting one third spherical shape for the lateral wall of protrusion
Fruit；
3. passing through the setting of capacity chamber and the first stiffening plate, the structural strength of scraper before increasing, so that the utility model
The more stable work of energy.
Detailed description of the invention
Fig. 1 is the overall structure diagram of double scraper exhaust pitions shown in the utility model embodiment one；
Fig. 2 is shown in the utility model embodiment one for embodying the schematic diagram of piston header structure；
Fig. 3 is the enlarged drawing of part A in Fig. 2；
Fig. 4 is the overall structure diagram of double scraper exhaust pitions shown in the utility model embodiment two；
Fig. 5 is the enlarged drawing of part B in Fig. 4.
In figure, 1, piston only；2, preceding scraper；3, rear scraper；4, annular surface；41, raised；5, piston head；51, it connects
Portion；52, cone head part；6, capacity chamber；61, the first stiffening plate；7, the second stiffening plate；8, reinforcing rib.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment one
It referring to Figures 1 and 2, is a kind of double scraper exhaust pitions disclosed by the utility model comprising piston only 1, preceding
Scraper 2 and rear scraper 3.Piston only 1 is annular in shape, and preceding scraper 2 and rear scraper 3 are respectively by the both ends outward bending of piston only 1
It is formed, preceding scraper 2 is coaxially disposed with rear scraper 3 and outer diameter is equal.
Referring to Figures 1 and 2, piston only 1 is fixedly connected with piston head 5 by one end of nearby scraper 2, and piston head 5 includes
Interconnecting piece 51 and cone head part 52.Interconnecting piece 51 connect with piston only 1 and reaches outside capacity chamber 6, and cone head part 52 is connected to
One end of the stretching capacity chamber 6 of socket part 51.Arc-shaped transition between interconnecting piece 51 and cone head part 52, interconnecting piece 51 and preceding scraper 2 it
Between be formed with capacity chamber 6.Reinforcing rib 8, one end of reinforcing rib 8 and the fixed company of the inner wall of piston head 5 are additionally provided in piston only 1
It connects, the other end of reinforcing rib 8 is fixedly connected with the inner wall of piston only 1, to reinforce the structural strength of double scraper exhaust pitions.
Referring to Fig. 3, it is connected with the first stiffening plate 61 between preceding scraper 2 and interconnecting piece 51 and in capacity chamber 6, preferably
, there are four the first stiffening plate 61 in the present embodiment is uniformly distributed along the circumferential direction of preceding scraper 2.
Referring to Fig. 3, the circumferential direction of piston only 1 is provided with annular surface 4 on preceding scraper 2 and rear scraper 3, each annular
It is evenly arranged with several protrusions 41 on face 4, there is small gap between adjacent protrusion 41, piston only 1 passes through two simultaneously
All raised 41 on a annular surface 4 abut with the inner sidewall of packing element.Specifically, protrusion 41 is spherical in one third, annular surface 4
Width be 3-5 μm, protrusion 41 arcuately face width direction size be 0.2-0.3 μm.It should be noted that the protrusion in Fig. 3
41 be schematic diagram, does not represent the quantity of the present embodiment protrusions 41.Preferably, in the present embodiment, the width of annular surface 4 is
3 μm, protrusion 41 arcuately face width direction size be 0.3 μm.
The implementation principle of the present embodiment are as follows:
At work, piston only 1 passes through all raised 41 and glue on two annular surfaces 4 to double scraper exhaust pitions simultaneously
The inner sidewall of cylinder abuts, and effectively increases frictioning effect.Since protrusion 41 is spherical in one third, so each raised 41 and glue
The area of medial wall of the tube contact is smaller, effectively increases the exhaust effect of preceding scraper 2 and rear scraper 3.
Embodiment two
It is a kind of double scraper exhaust pitions disclosed by the utility model referring to Fig. 4 and Fig. 5, based on embodiment one, this
The difference of embodiment and embodiment one is: rear scraper 3 is formed by one end outward bending of piston only 1, and preceding scraper 2 is by piston
The other end of ontology 1 is bent to form in 3 direction of scraper backward.Second is connected between preceding scraper 2 and the lateral wall of piston only 1 to add
Strong plate 7, it is preferable that there are four the second stiffening plate 7 in the present embodiment is uniformly distributed along the circumferential direction of preceding scraper 2.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (10)
1. a kind of double scraper exhaust pitions, including piston only (1), preceding scraper (2) and rear scraper (3), the preceding scraper (2) and
Scraper (3) is coaxial afterwards and is separately positioned on the both ends of piston only (1), it is characterised in that: the preceding scraper (2) and rear scraper
(3) circumferential direction on along piston only (1) is provided with annular surface (4), is evenly distributed on each annular surface (4) several
A protrusion (41), the piston only (1) are supported by the inner sidewall of protrusion (41) and packing element on two annular surfaces (4) simultaneously
It connects.
2. double scraper exhaust pitions according to claim 1, it is characterised in that: the protrusion (41) is in one third ball
Shape.
3. double scraper exhaust pitions according to claim 1, it is characterised in that: the width of the annular surface (4) is 3-5 μ
m。
4. double scraper exhaust pitions according to claim 3, it is characterised in that: the protrusion (41) is along annular surface (4) width
The size for spending direction is 0.2-0.3 μm.
5. double scraper exhaust pitions according to claim 1, it is characterised in that: the piston only (1) is annularly, described
Preceding scraper (2) and rear scraper (3) are formed by the both ends outward bending of piston only (1) respectively.
6. double scraper exhaust pitions according to claim 5, it is characterised in that: the piston only (1) is by nearby scraper
(2) one end is connected with piston head (5), and capacity chamber (6) are formed between the piston head (5) and preceding scraper (2)；It is scraped before described
The first stiffening plate (61) are connected between knife (2) and piston head (5) and in capacity chamber (6).
7. double scraper exhaust pitions according to claim 6, it is characterised in that: the piston head (5) includes interconnecting piece
(51) it is connect with piston only (1) with cone head part (52), the interconnecting piece (51) and stretches out capacity chamber (6) outside；The cone head part
(52) it is connected to one end that interconnecting piece (51) stretch out capacity chamber (6), first stiffening plate (61) is connected to preceding scraper (2) and connects
Between socket part (51).
8. double scraper exhaust pitions according to claim 7, it is characterised in that: the interconnecting piece (51) and cone head part (52)
Between arc-shaped transition.
9. double scraper exhaust pitions according to claim 1, it is characterised in that: scraper (3) is by piston only (1) after described
One end outward bending formed, by the other end of piston only (1), scraper (3) direction is bent to form the preceding scraper (2) backward.
10. double scraper exhaust pitions according to claim 9, it is characterised in that: the preceding scraper (2) and piston only
(1) the second stiffening plate (7) are connected between lateral wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821807144.8U CN209124275U (en) | 2018-11-02 | 2018-11-02 | Double scraper exhaust pitions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821807144.8U CN209124275U (en) | 2018-11-02 | 2018-11-02 | Double scraper exhaust pitions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209124275U true CN209124275U (en) | 2019-07-19 |
Family
ID=67233765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821807144.8U Active CN209124275U (en) | 2018-11-02 | 2018-11-02 | Double scraper exhaust pitions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209124275U (en) |
-
2018
- 2018-11-02 CN CN201821807144.8U patent/CN209124275U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |