CN208660054U - A kind of high pressure injector being conveniently replaceable piston - Google Patents
A kind of high pressure injector being conveniently replaceable piston Download PDFInfo
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- CN208660054U CN208660054U CN201721652597.3U CN201721652597U CN208660054U CN 208660054 U CN208660054 U CN 208660054U CN 201721652597 U CN201721652597 U CN 201721652597U CN 208660054 U CN208660054 U CN 208660054U
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- piston
- high pressure
- bar
- diameter
- pressure injector
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Abstract
The utility model provides a kind of high pressure injector for being conveniently replaceable piston, including high pressure injector, the utility model is less than the minimum diameter of stop collar by the maximum gauge setting by threaded post, the diameter setting of round bar is greater than the minimum diameter of stop collar, and the diameter of round bar is added the maximum gauge for being set equal to injection tube with the length of insertion bar, keep this new structural design reasonable, it is convenient for disassembly and assembly, it is identical as the angle of injection tube left end inner wall by being arranged the angle of rubber piston left end, and the rubber ring that stepped diameter is sequentially reduced is set along the direction of propulsion of piston core pin in rubber piston right end outer surface, make this new structural better tightness, it gears to actual circumstances, by three times that set the quantity of limiting slot to the quantity of insertion bar, sliding block and sliding slot are set on the contact surface of limiting slot and insertion bar, and sliding block and cunning Slot is slidably connected, and the length of sliding block is greater than the length of sliding slot, keeps the connection of this new structure more stable.
Description
Technical field
The utility model relates to medical syringe correlative technology field, specially a kind of high-pressure injection for being conveniently replaceable piston
Device.
Background technique
Syringe is made of the foraminate syringe of front end band and matching piston core pin.Syringe is for by liquid
Body is injected into the device of the liquid assimilating in the region that other methods can not approach or the region that can not approach other methods.
When core bar is extracted, perhaps gas squeezes liquid or gas when core bar is pushed into from the sucking of syringe front end aperture liquid
Out.This process that gas or liquid are extracted or injected with syringe and syringe needle is known as injecting.Reality is in the note used
In emitter, the piston in piston core pin is usually reduced using the multiple frictional force that eventually causes, so as to cause in syringe
Insufficient pressure causes irremediable loss, thus it is proposed that a kind of high pressure injector for being conveniently replaceable piston solves
Problem above.
Utility model content
The purpose of this utility model is to provide a kind of high pressure injectors for being conveniently replaceable piston, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model provides the following technical solutions: a kind of high-pressure injection being conveniently replaceable piston
Device, including high pressure injector, the high pressure injector include injection tube, rubber piston and piston core pin, the piston core pin
In intersection " ten " shape, middle-end is cylindrical round bar, and side is the insertion bar in cuboid plate structure, the insertion bar
There are four circular dot based on round bar is arranged radially, and the left end integrally casting of piston core pin has threaded post, the screw thread
Column is set to the inside of rubber piston, the rubber piston and injection tube are interference fitted, and rubber piston is internally provided with fixation
Block, the fixed block are provided with thread groove towards threaded post on one side, and the two is threadedly coupled, and the inside of rubber piston is also movable
Restraining position ring block is connected, which is provided with limiting slot towards round bar on one side, and limiting slot is harmonious with insertion bar.
Preferably, the maximum gauge of the threaded post is less than the minimum diameter of stop collar, and the diameter of round bar is greater than stop collar
Minimum diameter, and the diameter of round bar with insertion bar length is added be equal to injection tube maximum gauge.
Preferably, the left end of the rubber piston is in " V " shape, the angle of left end and the angle of injection tube left end inner wall
It is identical, and the right end of rubber piston is in " U " shape, right end outer surface is provided with stepped along the direction of propulsion of piston core pin
The rubber ring that diameter is sequentially reduced.
Preferably, the quantity of the limiting slot is three times of the quantity of insertion bar, the limiting slot and the contact for being embedded in bar
Sliding block and sliding slot are provided on face, and sliding block is slidably connected with sliding slot, the length of the sliding block is greater than the length of sliding slot.
Compared with prior art, the utility model has the beneficial effects that the utility model is easy to operate, setting is reasonable；
1, it is less than the minimum diameter of stop collar by the maximum gauge setting by threaded post, the diameter setting of round bar is greater than limit
The minimum diameter of position ring, and the diameter of round bar is added the maximum gauge for being set equal to injection tube with the length of insertion bar, keeps this new
Type is reasonable in design, convenient for disassembly and assembly；
2, identical as the angle of injection tube left end inner wall by being arranged the angle of rubber piston left end, and in rubber piston
The rubber ring that stepped diameter is sequentially reduced is arranged along the direction of propulsion of piston core pin for right end outer surface, keeps this new structural
Better tightness gears to actual circumstances；
3, by setting the quantity of limiting slot to three times of the quantity of insertion bar, in the contact of limiting slot and insertion bar
Sliding block and sliding slot are set, and sliding block is slidably connected with sliding slot, the length of sliding block is greater than the length of sliding slot, makes this novel knot on face
Structure connection is more stable.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is enlarged structure schematic diagram at A in Fig. 1；
Fig. 3 is enlarged structure schematic diagram at B in Fig. 2.
In figure: 1 injection tube, 2 rubber pistons, 3 piston core pins, 4 fixed blocks, 5 threaded posts, 6 stop collars, 7 limiting slots, 8 are slided
Block, 9 sliding slots, 10 high pressure injectors, 11 round bars, 12 insertion bars.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " side ", " middle-end ", " inside ", " left end ",
The orientation or positional relationship of instructions such as " right ends " is to be merely for convenience of retouching based on orientation or positional relationship shown in attached drawing 1-3
State the utility model and simplify description, rather than the device of indication or suggestion meaning or structure must have particular orientation, with
Specific orientation construction and operation, therefore should not be understood as limiting the present invention.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of high pressure injector being conveniently replaceable piston,
Including high pressure injector 10, which includes injection tube 1, rubber piston 2 and piston core pin 3, rubber piston 2
Left end be in " V " shape, the angle of left end is identical as the angle of 1 left end inner wall of injection tube, and the right end of rubber piston 2 is in
" U " shape, right end outer surface are provided with the rubber ring that stepped diameter is sequentially reduced along the direction of propulsion of piston core pin 3,
Keep this new structural design reasonable, it is convenient for disassembly and assembly.
Piston core pin 3 is cylindrical round bar 11 in " ten " shape, middle-end is intersected, and side is in cuboid plate knot
The insertion bar 12 of structure, there are four which is arranged radially based on the circular dot of round bar 11, and the left end of piston core pin 3
Integrally casting has threaded post 5, and the maximum gauge of threaded post 5 is less than the minimum diameter of stop collar 6, and the diameter of round bar 11 is greater than limit
The minimum diameter of ring 6, and the diameter of round bar 11 is added the maximum gauge equal to injection tube 2, threaded post 5 with the length of insertion bar 12
It is set to the inside of rubber piston 2, the rubber piston 2 and injection tube 1 are interference fitted, and being internally provided with for rubber piston 2 is consolidated
Determine block 4, fixed block 4 is provided with thread groove towards threaded post 5 on one side, and the two is threadedly coupled, and the inside of rubber piston 2 is also living
Dynamic connection restraining position ring block 6, the maximum gauge of threaded post 5 are less than the minimum diameter of stop collar 6, and the diameter of round bar 11 is greater than stop collar
6 minimum diameter, and the diameter of round bar 11 is added the maximum gauge equal to injection tube 2 with the length of insertion bar 12, keeps this novel
The better tightness of structure, gears to actual circumstances.
Stop collar 6 is provided with limiting slot 7 towards round bar 11 on one side, and limiting slot 7 is harmonious with insertion bar 12, limiting slot 7
Quantity is three times of quantity for being embedded in bar 12, the limiting slot 7 and is embedded on the contact surface of bar 12 and is provided with sliding block 8 and sliding slot
9, and sliding block 8 is slidably connected with sliding slot 9, the length of the sliding block 8 is greater than the length of sliding slot 9, keeps the connection of this new structure more steady
It is fixed.
Working principle: when needing to carry out the assembling of high pressure injector 10, threaded post 5 is gradually first put into rubber piston 2
In, then gradually it is threadedly coupled with fixed block 4, meanwhile, insertion bar 12 is slidably connected with limiting slot 7, and sliding block 8 and sliding slot 9 exist
It is slidably connected, stop collar 6 is also being slidably connected with rubber piston 2, when piston core pin 3 is completed with rubber piston 2, by it
It is put into injection tube 1, work is completed.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
It is somebody's turn to do, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of high pressure injector for being conveniently replaceable piston, including high pressure injector (10), the high pressure injector (10) include
Injection tube (1), rubber piston (2) and piston core pin (3), it is characterised in that: the piston core pin (3) is in intersection " ten " word
Shape, middle-end are cylindrical round bar (11), and side is the insertion bar (12) in cuboid plate structure, the insertion bar (12)
There are four circular dot based on round bar (11) is arranged radially, and the left end integrally casting of piston core pin (3) has threaded post
(5), the threaded post (5) is set to the inside of rubber piston (2), and the rubber piston (2) and injection tube (1) are interference fitted, and
Rubber piston (2) is internally provided with fixed block (4), and the fixed block (4) is provided with screw thread towards threaded post (5) on one side
Slot, the two are threadedly coupled, and the inside of rubber piston (2) is also flexibly connected restraining position ring block (6), and the stop collar (6) is towards round bar
(11) be provided on one side limiting slot (7), limiting slot (7) are harmonious with insertion bar (12).
2. a kind of high pressure injector for being conveniently replaceable piston according to claim 1, it is characterised in that: the threaded post
(5) maximum gauge is less than the minimum diameter of stop collar (6), and the diameter of round bar (11) is greater than the minimum diameter of stop collar (6), and
The diameter of round bar (11) is added the maximum gauge equal to injection tube (1) with the length of insertion bar (12).
3. a kind of high pressure injector for being conveniently replaceable piston according to claim 1, it is characterised in that: the rubber piston
(2) left end is in " V " shape, and the angle of left end is identical as the angle of injection tube (1) left end inner wall, and rubber piston (2)
Right end is in " U " shape, and right end outer surface is provided with what stepped diameter was sequentially reduced along the direction of propulsion of piston core pin (3)
Rubber ring.
4. a kind of high pressure injector for being conveniently replaceable piston according to claim 1, it is characterised in that: the limiting slot
(7) quantity is three times of quantity for being embedded in bar (12), the limiting slot (7) and is embedded on the contact surface of bar (12) and is provided with cunning
Block (8) and sliding slot (9), and sliding block (8) is slidably connected with sliding slot (9), the length of the sliding block (8) is greater than the length of sliding slot (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721652597.3U CN208660054U (en) | 2017-12-01 | 2017-12-01 | A kind of high pressure injector being conveniently replaceable piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721652597.3U CN208660054U (en) | 2017-12-01 | 2017-12-01 | A kind of high pressure injector being conveniently replaceable piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208660054U true CN208660054U (en) | 2019-03-29 |
Family
ID=65819659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721652597.3U Active CN208660054U (en) | 2017-12-01 | 2017-12-01 | A kind of high pressure injector being conveniently replaceable piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208660054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110237360A (en) * | 2019-07-11 | 2019-09-17 | 陶崇林 | A kind of injection needle tube convenient for one-handed performance |
-
2017
- 2017-12-01 CN CN201721652597.3U patent/CN208660054U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110237360A (en) * | 2019-07-11 | 2019-09-17 | 陶崇林 | A kind of injection needle tube convenient for one-handed performance |
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