CN221286506U - Sealing structure for connecting coreless rod injector with dispensing machine - Google Patents
Sealing structure for connecting coreless rod injector with dispensing machine Download PDFInfo
- Publication number
- CN221286506U CN221286506U CN202322239934.8U CN202322239934U CN221286506U CN 221286506 U CN221286506 U CN 221286506U CN 202322239934 U CN202322239934 U CN 202322239934U CN 221286506 U CN221286506 U CN 221286506U
- Authority
- CN
- China
- Prior art keywords
- ring
- sealing
- syringe
- dispensing machine
- coreless
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 134
- 238000002347 injection Methods 0.000 claims abstract description 41
- 239000007924 injection Substances 0.000 claims abstract description 41
- 210000001503 joint Anatomy 0.000 claims abstract 2
- 239000003814 drug Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 20
- 238000009434 installation Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a sealing structure for connecting a coreless injector with a dispensing machine, which comprises an injection cylinder, a piston cavity, a main sealing fixing seat, a sealing guide ring and a sealing guide ring, wherein the upper surface of the main sealing fixing seat extends upwards to form a first annular sealing area; the bottom of sealing ring and main seal fixing base butt, the top of sealing ring and the bottom of injection tube are in the horizontal direction butt and are formed the second annular seal area. The bottom of the injection cylinder is inserted into the sealing guide ring above the main sealing fixing seat, the first resealing is realized between the outer circumferential surface of the sealing guide ring and the inner circumferential surface of the piston cavity of the injection cylinder, the first resealing is positioned in the first annular sealing area, then the bottom of the injection cylinder is contacted with the sealing ring and is in compression butt joint, and then a second resealing is formed, and the second resealing is positioned at the position of the second annular sealing area which is horizontal with the injection cylinder, so that the advantages of good sealing effect and convenient installation are realized.
Description
Technical Field
The utility model relates to the field of medical accessories, in particular to a sealing structure for connecting a coreless syringe with a dispensing machine.
Background
Currently, syringes sold in the market and used in hospitals are composed of a syringe barrel and a syringe rod, and the syringe is required to be pulled or pushed by manpower when in use, so that vacuum suction or pushing force is generated in the syringe barrel, and then injection or extraction work is performed.
In the prior art, in order to solve the problem of manually pulling and pushing the injection rod, the Chinese patent application No. 200910174979.3 discloses a coreless rod electric injector, which solves the problem of manually pulling and pushing the injection rod in a mode of external force action, and seals the rear end of the injection cylinder only by abutting with a sealing piece by installing a pressure control device at the rear end of the injection cylinder, and the mode easily causes leakage of compressed air generated between the rear end of the injection cylinder and equipment connection, so that a sealing structure with better sealing effect is needed.
Disclosure of utility model
The utility model aims to provide a sealing structure for connecting a coreless rod injector with a dispensing machine, which has the advantage of good sealing effect.
The technical aim of the utility model is realized by the following technical scheme: the sealing structure for connecting the coreless rod injector with the medicine dispensing machine comprises an injection cylinder, a piston cavity and a medicine dispensing machine
The upper surface of the main seal fixing seat extends upwards to form a seal guide ring, and the outer side wall of the seal guide ring is abutted with the inner side wall of the piston cavity in the height direction to form a first annular seal area;
The bottom of the sealing ring is abutted with the main sealing fixing seat, and the top of the sealing ring is abutted with the bottom of the injection cylinder in the horizontal direction to form a second annular sealing area;
When the injection tube is installed downwards, the sealing guide ring is inserted into the piston cavity, and the bottom of the injection tube presses the top of the sealing ring and deforms the sealing ring.
Preferably, the sealing ring protrudes upwards in the second annular sealing area to form an elastic ring, the elastic ring and the sealing ring are concentrically arranged, and the elastic ring is abutted with the bottom of the injection cylinder.
Through adopting above-mentioned technical scheme, the elastic ring plays the effect that improves sealed effect, and when its and syringe bottom carry out the butt, the elastic ring inwards takes place to warp, improves the area of contact with the syringe bottom, simultaneously with the fin butt of syringe at first spacing intracavity.
Preferably, the elastic ring has an arc-shaped longitudinal cross-sectional profile.
By adopting the technical scheme, the sealing effect is better.
Preferably, the inner ring of the sealing ring extends towards the outer ring of the sealing guide ring to form a deformation abutting end, the deformation abutting end and the sealing ring are concentrically arranged, a deformation gap is formed between the deformation abutting end and the outer ring of the sealing guide ring, and the elastic ring extends to the top of the deformation abutting end.
Through adopting above-mentioned technical scheme, when pushing down the seal ring, deformation butt end takes place to the center deformation, fills the deformation clearance, forms the effect of third annular seal area.
Preferably, the bottom of the outer ring of the sealing ring extends outwards along the horizontal direction to form a connecting ring, and the connecting ring and the sealing ring are concentrically arranged.
Through adopting above-mentioned technical scheme, the go-between plays the effect that sealing ring and dispensing machine handle are connected.
Preferably, the sealing ring forms a deformation cavity between the bottom of the deformation abutting end and the outer ring of the sealing guide ring.
By adopting the technical scheme, the deformation cavity is convenient for the downward deformation of the sealing ring.
Preferably, the piston cavity is inwards protruded at the position of the first annular sealing area to form an abutting ring, the abutting ring is abutted with the outer ring of the sealing guide ring, the upper surface of the abutting ring is obliquely arranged with the inner wall of the piston cavity, and the lower surface of the abutting ring obliquely penetrates through the bottom of the injection cylinder and is larger than the aperture of the piston cavity.
Through adopting above-mentioned technical scheme, improve sealed effect, the contact area between the sealed guide ring of butt ring reduction first annular seal district and main seal fixing base makes the installation between injection tube and the main seal fixing base more convenient, and the lower surface of butt ring plays the effect of direction installation simultaneously.
Preferably, the top of the sealing guide ring is inclined downwards to form an annular guide surface, and the annular guide surface and the main sealing fixing seat are concentrically arranged.
Through adopting above-mentioned technical scheme, annular guide surface cooperates with the lower surface of butt ring, plays the effect of direction installation.
As the preference, still include fin, upper limit portion, lower limit portion and pneumatic unit, the fin sets up in the both sides of injection tube bottom width direction, form the first spacing chamber that limits the fin and remove in the direction of height between upper limit portion and the lower limit portion, first spacing chamber sets up with the main seal fixing base is concentric, the main seal fixing base sets up the top at pneumatic unit, pneumatic unit is fixed with lower limit portion, the outer lane of main seal fixing base is provided with the spacing ring, the top and the bottom butt of sealed guide ring of spacing ring, be provided with the second spacing chamber that holds go-between and spacing ring in the lower limit portion, second spacing chamber restriction go-between and spacing ring remove in the direction of height.
Through adopting above-mentioned technical scheme, first spacing chamber plays the effect of limiting the fin and remove in the direction of height, plays the effect of compressing tightly the sealing ring simultaneously, and the second spacing chamber plays the effect of fixed sealing ring and main seal fixing base.
Preferably, the sealing fixing seat is provided with a vent hole communicated with the air pressure unit at the center of the sealing guide ring.
By adopting the technical scheme, the vent holes allow air to enter and leave the piston cavity.
In summary, in the use, insert the sealed direction intra-annular of main seal fixing base top in the bottom of syringe, realize first resealing between the outer periphery of sealed direction intra-annular and the interior periphery of syringe piston chamber, first resealing is located first annular seal area, then the bottom of syringe and sealing ring contact and compression butt, and then formed the second resealing, the second resealing is located the second annular seal area position with syringe horizontally, sealing effect is good has been realized, simple to operate's advantage, simultaneously in the in-process of syringe bottom and sealing ring downwardly extrusion butt, deformation butt end inwards warp, fill the deformation clearance, form third resealing, improve sealed effect.
Drawings
FIG. 1 is a schematic structural view of an embodiment;
FIG. 2 is a schematic cross-sectional view of an embodiment;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
in the figure, 1, a syringe; 11. a fin; 12. a piston chamber; 13. an abutment ring; 2. an upper limit part; 21. a first spacing cavity; 3. a lower limit part; 32. the second limiting cavity; 33. an air pressure unit; 4. a main seal holder; 41. sealing the guide ring; 42. a first annular sealing region; 43. an annular guide surface; 44. a vent hole; 5. a seal ring; 51. a second annular sealing region; 52. an elastic ring; 53. a deformation abutting end; 54. a deformation gap; 55. a connecting ring; 56. a deformation cavity.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
Examples:
As shown in fig. 1 to 3, a sealing structure for connecting a coreless syringe with a dispensing machine is connected to a handle of the dispensing machine, and as shown in fig. 1, the handle is formed by combining a left part and a right part, a syringe 1 is connected in the handle, the sealing structure plays a role of sealing the handle and the handle, a piston cavity 12 is arranged in the center of the syringe 1, the piston cavity 12 penetrates to the bottom of the syringe 1, and fins 11 are formed by extending the bottom of the syringe 1 along two sides of the width direction; the left and right combined handles are provided with an upper limit part 2, a lower limit part 3 and an air pressure unit 33 at the positions, and the bottoms of the air pressure units 33 are connected with a dispensing machine through an air pipe.
As shown in fig. 2 and 3, the sealing structure comprises a syringe 1, a piston cavity 12, a main sealing fixing seat 4 and a sealing ring 5, wherein the main sealing fixing seat 4 is made of plastic, the upper surface of the upper half part of the main sealing fixing seat 4 extends upwards to form a sealing guide ring 41, the cross section of the sealing guide ring 41 is annular, the top of the sealing guide ring 41 is inclined downwards to form an annular guide surface 43 for better guiding effect, and the annular guide surface 43 is arranged concentrically with the main sealing fixing seat 4; the top of the air pressure unit 33 is in contact with the bottom of the main seal holder 4, and the main seal holder 4 is provided with a vent hole 44 communicating with the top of the air pressure unit 33 at the center of the seal guide ring 41.
As shown in fig. 2 and 3, the outer side wall of the seal guiding ring 41 is abutted against the inner side wall of the piston cavity 12 in the height direction to form a first annular sealing area 42, wherein the piston cavity 12 of the injection cylinder 1 protrudes inwards at the position of the first annular sealing area 42 to form an abutting ring 13, the abutting ring 13 is abutted against the outer ring of the seal guiding ring 41, the upper surface of the abutting ring 13 is obliquely arranged with the inner wall of the piston cavity 12, and the lower surface of the abutting ring 13 obliquely penetrates to the bottom of the injection cylinder 1 and is larger than the aperture of the piston cavity 12, so that the injection cylinder 1 is convenient to position and install.
As shown in fig. 2 and 3, the sealing ring 5 is made of rubber material, the bottom of the sealing ring 5 is abutted with the main sealing fixing seat 4, the top of the sealing ring 5 is abutted with the bottom of the injection tube 1 in the horizontal direction to form a second annular sealing area 51, when the injection tube 1 is installed downwards, the sealing guide ring 41 is inserted into the piston cavity 12, the bottom of the injection tube 1 is pressed on the top of the sealing ring 5 and deforms the sealing ring 5, in order to enhance the sealing effect, the sealing ring 5 protrudes upwards in the second annular sealing area 51 to form an elastic ring 52, the cross section of the elastic ring 52 is circular, the longitudinal section outline of the elastic ring 52 is arc-shaped, the elastic ring 52 is concentrically arranged with the sealing ring 5, and the elastic ring 52 is abutted with the bottom of the injection tube 1.
As shown in fig. 3, in order to achieve a better sealing effect, the inner ring of the sealing ring 5 extends toward the outer ring of the sealing guide ring 41 to form a deformed abutting end 53, the cross-sectional shape of the deformed abutting end 53 is circular, the deformed abutting end 53 is concentrically arranged with the sealing ring 5, a deformed gap 54 is formed between the deformed abutting end 53 and the outer ring of the sealing guide ring 41, the elastic ring 52 extends to the top of the deformed abutting end 53, and the sealing ring 5 forms a deformed cavity 56 between the bottom of the deformed abutting end 53 and the outer ring of the sealing guide ring 41.
As shown in fig. 2 and 3, in order to fix the bottom of the syringe 1, a first limiting chamber 21 for limiting the movement of the wing 11 in the height direction is formed between the upper limiting portion 2 and the lower limiting portion 3, the first limiting chamber 21 is disposed concentrically with the main seal holder 4, the main seal holder 4 is disposed above the air pressure unit 33, and the air pressure unit 33 is fixed to the lower limiting portion 3.
As shown in fig. 2 and 3, in order to fix the seal ring 5 and the main seal fixing seat 4, the bottom of the outer ring of the seal ring 5 extends outwards along the horizontal direction to form a connecting ring 55, the connecting ring 55 is concentrically arranged with the seal ring 5, the outer ring of the main seal fixing seat 4 is provided with a limiting ring, the top of the limiting ring is abutted with the bottom of the seal guiding ring 41, a second limiting cavity 32 for accommodating the connecting ring 55 and the limiting ring is arranged in the lower limiting part 3, and the second limiting cavity 32 limits the connecting ring 55 and the limiting ring to move in the height direction.
Working principle:
The injection tube 1 is installed in the handle from the side, the injection tube 1 is pressed down, the sealing guide ring 41 enters the piston cavity 12 from the bottom and presses the sealing ring 5, then the injection tube 1 is rotated to enable the wing 11 on the side surface of the injection tube 1 to enter the first limiting cavity 21, in the process, the outer circumference surface of the sealing guide ring 41 and the inner circumference surface of the piston cavity 12 of the injection tube 1 are relieved in the first annular sealing area 42, the first resealing is achieved, then the bottom of the injection tube 1 is contacted with the sealing ring 5 and is in compression abutting joint, the second resealing is further formed, the second resealing is located at the position of the second annular sealing area 51 which is horizontal to the injection tube 1, meanwhile, in the process of downwards pressing abutting joint of the bottom of the injection tube 1, the deformation abutting end 53 is deformed inwards, the filling deformation gap 54 is contacted with the outer circumference surface of the sealing guide ring 41, and a third resealing is formed, and the sealing effect is improved.
Claims (10)
1. The utility model provides a sealing structure that coreless pole syringe and medicine dispensing machine are connected, includes syringe tube (1) and piston chamber (12), its characterized in that: and also comprises
The upper surface of the main seal fixing seat (4) extends upwards to form a seal guide ring (41), and the outer side wall of the seal guide ring (41) is abutted with the inner side wall of the piston cavity (12) in the height direction to form a first annular seal area (42);
The bottom of the sealing ring (5) is abutted with the main sealing fixing seat (4), and the top of the sealing ring (5) is abutted with the bottom of the injection cylinder (1) in the horizontal direction to form a second annular sealing area (51);
when the injection cylinder (1) is installed downwards, the sealing guide ring (41) is inserted into the piston cavity (12), and the bottom of the injection cylinder (1) presses the top of the sealing ring (5) and deforms the sealing ring (5).
2. The sealing structure for connecting a coreless syringe to a dispensing machine of claim 1, wherein: the sealing ring (5) protrudes upwards in the second annular sealing area (51) to form an elastic ring (52), the elastic ring (52) and the sealing ring (5) are concentrically arranged, and the elastic ring (52) is abutted with the bottom of the injection cylinder (1).
3. A sealing structure for connecting a coreless syringe to a dispensing machine as claimed in claim 2, wherein: the elastic ring (52) has an arc-shaped longitudinal cross-sectional profile.
4. A sealing structure for connecting a coreless syringe to a dispensing machine as claimed in claim 2, wherein: the inner ring of the sealing ring (5) extends towards the outer ring of the sealing guide ring (41) to form a deformation abutting end (53), the deformation abutting end (53) and the sealing ring (5) are concentrically arranged, a deformation gap (54) is formed between the deformation abutting end (53) and the outer ring of the sealing guide ring (41), and the elastic ring (52) extends to the top of the deformation abutting end (53).
5. The sealing structure for connecting a coreless syringe to a dispensing machine of claim 1, wherein: the bottom of the outer ring of the sealing ring (5) extends outwards along the horizontal direction to form a connecting ring (55), and the connecting ring (55) and the sealing ring (5) are concentrically arranged.
6. The sealing structure for connecting a coreless syringe to a dispensing machine of claim 4, wherein: the sealing ring (5) forms a deformation cavity (56) between the bottom of the deformation abutting end (53) and the outer ring of the sealing guide ring (41).
7. The sealing structure for connecting a coreless syringe to a dispensing machine of claim 1, wherein: the piston cavity (12) inwards protrudes at the position of the first annular sealing area (42) to form an abutting ring (13), the abutting ring (13) abuts against the outer ring of the sealing guide ring (41), the upper surface of the abutting ring (13) is obliquely arranged with the inner wall of the piston cavity (12), and the lower surface of the abutting ring (13) obliquely penetrates through the bottom of the injection cylinder (1) and is larger than the aperture of the piston cavity (12).
8. The sealing structure for connecting a coreless syringe to a dispensing machine of claim 7, wherein: the top of the sealing guide ring (41) is inclined downwards to form an annular guide surface (43), and the annular guide surface (43) and the main sealing fixing seat (4) are concentrically arranged.
9. The sealing structure for connecting a coreless syringe to a dispensing machine of claim 5, wherein: the novel injection tube comprises a syringe body and is characterized by further comprising a wing piece (11), an upper limiting part (2), a lower limiting part (3) and an air pressure unit (33), wherein the wing piece (11) is arranged on two sides of the width direction of the bottom of the syringe body (1), a first limiting cavity (21) for limiting the movement of the wing piece (11) in the height direction is formed between the upper limiting part (2) and the lower limiting part (3), the first limiting cavity (21) is arranged concentrically with a main seal fixing seat (4), the main seal fixing seat (4) is arranged above the air pressure unit (33), the air pressure unit (33) is fixed with the lower limiting part (3), the outer ring of the main seal fixing seat (4) is provided with a limiting ring, the top of the limiting ring is in butt joint with the bottom of a seal guiding ring (41), a second limiting cavity (32) for accommodating a connecting ring (55) and the limiting ring is arranged in the lower limiting part (3), and the second limiting cavity (55) and the limiting ring move in the height direction.
10. The sealing structure for connecting a coreless syringe to a dispensing machine of claim 9, wherein: the sealing fixing seat is provided with a vent hole (44) communicated with the air pressure unit (33) at the center of the sealing guide ring (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322239934.8U CN221286506U (en) | 2023-08-21 | 2023-08-21 | Sealing structure for connecting coreless rod injector with dispensing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322239934.8U CN221286506U (en) | 2023-08-21 | 2023-08-21 | Sealing structure for connecting coreless rod injector with dispensing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221286506U true CN221286506U (en) | 2024-07-09 |
Family
ID=91747245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322239934.8U Active CN221286506U (en) | 2023-08-21 | 2023-08-21 | Sealing structure for connecting coreless rod injector with dispensing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221286506U (en) |
-
2023
- 2023-08-21 CN CN202322239934.8U patent/CN221286506U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106784593B (en) | Liquid injection device | |
| CN209739723U (en) | Full-plastic emulsion pump | |
| CN221286506U (en) | Sealing structure for connecting coreless rod injector with dispensing machine | |
| CN116571396A (en) | End cover pressing equipment for assembling air filter | |
| CN214932184U (en) | All-plastic recyclable pressing emulsion pump | |
| CN207724219U (en) | A kind of pressure seal ring mechanism of battery terminal | |
| CN211132487U (en) | Low-resistance syringe with variable sealing degree | |
| CN112516411A (en) | Hypodermic indwelling needle with good sealing performance | |
| CN211272904U (en) | Negative pressure liquid-discharging nine-needle head | |
| CN208123056U (en) | A kind of elastic piston connection structure, high-pressure pumping system | |
| CN209852890U (en) | Environment-friendly emulsion pump | |
| CN116877702A (en) | Bellows stop valve | |
| CN208696895U (en) | Clamping device is used in a kind of processing of computer casing | |
| CN217310306U (en) | Safety recovery blood taking needle | |
| CN206852869U (en) | Reduce the syringe of pain | |
| CN111888577A (en) | Medical syringe | |
| CN209337056U (en) | Sofa orientation vacuumizes compressor | |
| CN212038488U (en) | Clinical anesthetic needle | |
| CN110025491A (en) | A kind of assist food machine | |
| CN218054764U (en) | Inflating valve joint sealing structure | |
| CN220000861U (en) | Swift notes liquid structure and aerosol generating device | |
| CN219015557U (en) | Piston ring tightness detection device | |
| CN216735535U (en) | Extrusion pump head | |
| CN219355196U (en) | Quick assembly's kettle bell handle | |
| CN219746968U (en) | Emulsion headless pump assembly machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |