CN213251254U - Auxiliary pneumatic host for drawing and pulling syringe - Google Patents
Auxiliary pneumatic host for drawing and pulling syringe Download PDFInfo
- Publication number
- CN213251254U CN213251254U CN202022092988.2U CN202022092988U CN213251254U CN 213251254 U CN213251254 U CN 213251254U CN 202022092988 U CN202022092988 U CN 202022092988U CN 213251254 U CN213251254 U CN 213251254U
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- cylinder body
- supporting seat
- fixed
- rear cylinder
- seat
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- Expired - Fee Related
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- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000001990 intravenous administration Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model belongs to the field of medical appliances, especially, pneumatic host computer is assisted to syringe pull. The main machine comprises a fixed seat, a front cylinder body and a rear cylinder body, wherein a first supporting seat is fixed at the front end of the fixed seat, a second supporting seat is fixed at the rear end of the fixed seat, and a guide shaft which is horizontally arranged is arranged between the upper part of the first supporting seat and the upper part of the second supporting seat; a stepping motor is fixed at the bottom of the second supporting seat, a screw rod is connected to the front end of a motor shaft of the stepping motor, and the other end of the screw rod is positioned at the bottom of the first supporting seat; the shell of the rear cylinder body is provided with a through hole, and the guide shaft passes through the through hole. The device drives the screw rod to rotate when the stepping motor which rotates accurately is controlled by the microcontroller, so that the rear cylinder body moves back and forth, air pressure difference is generated in the front cylinder body, and the injector achieves the drawing effect.
Description
Technical Field
The utility model belongs to the field of medical appliances, especially, pneumatic host computer is assisted to syringe pull.
Background
The invention discloses a working principle similar to the prior art, which is a working principle that a high-speed motor is used, and a main machine rotates at high frequency to enable a piston to move to squeeze air in a cylinder so as to achieve the purpose that positive and negative air pressure reaches the position of a handle. The following problems were found to exist during the substantial use thereof: the structure is complicated, the preparation operation is complex, the noise is large, and the air purification requirement of the intravenous administration configuration room is influenced by the air exhaust phenomenon.
Disclosure of Invention
The utility model discloses an aim at overcoming the not enough in prior art, provide a pneumatic host computer is assisted to syringe pull, the device drives the screw rod rotatory through letting under microcontroller control when rotating accurate step motor, makes the back cylinder body back-and-forth movement, produces the air pressure differential in the preceding cylinder body, lets the syringe reach the pull effect.
In order to achieve the above purpose, the technical solution of the present invention is realized as follows: the syringe drawing auxiliary pneumatic host comprises a fixed seat, a front cylinder body and a rear cylinder body, wherein a first supporting seat is fixed at the front end of the fixed seat, a second supporting seat is fixed at the rear end of the fixed seat, and a guide shaft horizontally arranged is arranged between the upper portion of the first supporting seat and the upper portion of the second supporting seat.
The bottom of the second supporting seat is fixed with a stepping motor, the front end of a motor shaft of the stepping motor is connected with a screw rod, and the other end of the screw rod is positioned at the bottom of the first supporting seat.
A through hole is formed in the shell of the rear cylinder body, the guide shaft penetrates through the through hole, an extension plate is arranged at the lower part of the shell of the rear cylinder body, a threaded hole is formed in the extension plate, and the screw rod penetrates through the threaded hole; the rear end of the rear cylinder body is closed, the front end of the rear cylinder body is opened, a horizontal column is fixed on one side, close to the rear end, of the interior of the rear cylinder body, and a cavity is formed between the horizontal column and the shell of the rear cylinder body.
The front end of the front cylinder body is fixed in the through hole of the first supporting seat, and the front end of the front cylinder body is provided with a pipeline connecting port; the rear end of the front cylinder body is of an opening structure, the rear end of the front cylinder body is located in the cavity of the rear cylinder body, the front cylinder body can move back and forth along the cavity, and the wall thickness of the shell at the rear end of the front cylinder body is matched with the inner diameter and the outer diameter of the cavity of the rear cylinder body. In order to improve the sealing performance between the rear end of the front cylinder and the rear cylinder, a soft rubber layer can be added on the outer side of the front cylinder.
This neotype further improvement, the front end of horizontal post is the round platform structure, and the rear end is the cylinder structure, and the inside front side of preceding cylinder body is identical with the round platform structure of horizontal post. By adopting the technical scheme, the sealing performance of the front cylinder body and the rear cylinder body is improved.
This neotype further improvement, fixing base, first supporting seat, second supporting seat enclose into hollow structure with the wallboard, and preceding cylinder body and back cylinder body are located this hollow structure. By adopting the technical scheme, the noise of the whole device is reduced.
This neotype further improvement, the guiding axle has 4, and the level respectively passes four corners of back cylinder body. By adopting the technical scheme, the moving stability of the rear cylinder body is improved.
This neotype further improvement, step motor and microcontroller electric connection.
The beneficial effects of the utility model reside in that: (1) the device has simple structure and easy assembly, and is suitable for large-scale use in the intravenous administration configuration room.
(2) The device drives the screw rod to rotate through the stepping motor, so that the rear cylinder body moves back and forth, air pressure difference is generated in the front cylinder body, the injector achieves the drawing effect, and the noise is low.
(3) Be provided with horizontal post in the device rear cylinder body, the whole embedded structure that is of back cylinder body has improved preceding cylinder body in rear cylinder body cavity relative motion's leakproofness, avoids indoor pollution.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of the overall structure of the novel device.
Fig. 2 is a schematic structural diagram of the novel cylinder after the front cylinder and the rear cylinder are removed.
Fig. 3 is a schematic structural diagram of the novel rear cylinder body.
Fig. 4 is a schematic structural diagram of the novel front cylinder body.
In the figure, the support device comprises a first support seat 1, a screw rod 2, a screw rod 3, an extension plate 4, a stepping motor 5, a second support seat 6, a pipeline connecting port 7, a front cylinder body 8, a guide shaft 9, a rear cylinder body 10, a through hole 11, a cavity 12, a horizontal column 13, a threaded hole 14, a fixed seat 15 and a through hole.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
The front-back direction in this document is referred to as the direction a-B in fig. 1, and is not intended to limit the scope of the present invention.
Example 1
The auxiliary pneumatic host for drawing the syringe comprises a fixed seat 14, a front cylinder body 7 and a rear cylinder body 9, wherein a first supporting seat 1 is fixed at the front end of the fixed seat 14, a second supporting seat 5 is fixed at the rear end of the fixed seat 14, and a guide shaft 8 which is horizontally arranged is arranged between the upper part of the first supporting seat 1 and the upper part of the second supporting seat 5.
The bottom of the second supporting seat 5 is fixed with a stepping motor 4, the front end of a motor shaft of the stepping motor 4 is connected with a screw rod 2, and the other end of the screw rod 2 is positioned at the bottom of the first supporting seat 1.
A through hole 15 is formed in the shell of the rear cylinder 9, the guide shaft 8 penetrates through the through hole 15, an extension plate 3 is arranged at the lower part of the shell of the rear cylinder 9, a threaded hole 13 is formed in the extension plate 3, and the screw rod 2 penetrates through the threaded hole 13; the rear end of the rear cylinder 9 is closed, the front end is open, a horizontal column 12 is fixed on one side of the interior of the rear cylinder 9 close to the rear end, and a cavity 11 is formed between the horizontal column 12 and the shell of the rear cylinder 9.
The front end of the front cylinder body 7 is fixed in a through hole 10 of the first supporting seat, and the front end of the front cylinder body 7 is provided with a pipeline connecting port 6; the rear end of the front cylinder body 7 is of an opening structure, the rear end of the front cylinder body 7 is located in the cavity of the rear cylinder body 9, the front cylinder body 7 can move back and forth along the cavity 11, and the wall thickness of the shell at the rear end of the front cylinder body 7 is matched with the inner diameter and the outer diameter of the cavity of the rear cylinder body 9.
Example 2
On the basis of embodiment 1, the front end of the horizontal column 12 is of a circular truncated cone structure, the rear end of the horizontal column is of a cylindrical structure, and the front side of the interior of the front cylinder body 7 is matched with the circular truncated cone structure of the horizontal column 12.
The fixing seat 14, the first supporting seat 1, the second supporting seat 5 and the wall board enclose a hollow structure, and the front cylinder body 7 and the rear cylinder body 9 are located in the hollow structure.
The guide shafts 8 are 4 and horizontally penetrate through four corners of the rear cylinder body 9 respectively.
The stepping motor 4 is electrically connected with the microcontroller.
When the host machine is used, the pipeline connecting port of the host machine is connected with the air inlet hole of the pneumatic injector, the pneumatic injector can be a conventional product, if a rodless piston core is arranged in the needle cylinder, the pipeline connecting port is connected with the rear end in the needle cylinder, and liquid extraction/release is realized by pushing the rodless piston core.
When the device is used specifically, the screw rod 2 is driven by the stepping motor 4, the rear cylinder body 9 is driven by the screw rod 2 to move back and forth, when the rear cylinder body 9 moves back, the area of the cavity 11 is gradually increased, the gas pressure in the cavity 11 is reduced, and external liquid is sucked into the needle cylinder; when the rear cylinder body 9 moves forward, the front cylinder body goes deep into the cavity 11, the area of the cavity 11 is gradually reduced, gas in the cavity 11 is compressed, the pressure is increased, and liquid in the needle cylinder is discharged.
Claims (5)
1. Supplementary pneumatic host computer of syringe pull, its characterized in that: the hydraulic cylinder comprises a fixed seat (14), a front cylinder body (7) and a rear cylinder body (9), wherein a first supporting seat (1) is fixed at the front end of the fixed seat (14), a second supporting seat (5) is fixed at the rear end of the fixed seat (14), and a guide shaft (8) which is horizontally arranged is arranged between the upper part of the first supporting seat (1) and the upper part of the second supporting seat (5);
a stepping motor (4) is fixed at the bottom of the second supporting seat (5), a screw rod (2) is connected to the front end of a motor shaft of the stepping motor (4), and the other end of the screw rod (2) is positioned at the bottom of the first supporting seat (1);
a through hole (15) is formed in the shell of the rear cylinder body (9), the guide shaft (8) penetrates through the through hole (15), an extension plate (3) is arranged at the lower part of the shell of the rear cylinder body (9), a threaded hole (13) is formed in the extension plate (3), and the screw rod (2) penetrates through the threaded hole (13); the rear end of the rear cylinder body (9) is closed, the front end of the rear cylinder body is open, a horizontal column (12) is fixed on one side of the interior of the rear cylinder body (9) close to the rear end, and a cavity (11) is formed between the horizontal column (12) and the shell of the rear cylinder body (9);
the front end of the front cylinder body (7) is fixed in a through hole (10) of the first supporting seat, and a pipeline connecting port (6) is arranged at the front end of the front cylinder body (7); the rear end of the front cylinder body (7) is of an opening structure, the rear end of the front cylinder body (7) is located in a cavity (11) of the rear cylinder body (9), the front cylinder body (7) can move back and forth along the cavity (11), and the wall thickness of a shell at the rear end of the front cylinder body (7) is matched with the inner diameter and the outer diameter of the cavity of the rear cylinder body (9).
2. The syringe pull assist pneumatic master of claim 1, wherein: the front end of the horizontal column (12) is of a circular truncated cone structure, the rear end of the horizontal column is of a cylindrical structure, and the front side of the interior of the front cylinder body (7) is matched with the circular truncated cone structure of the horizontal column (12).
3. The syringe pull assist pneumatic master of claim 1, wherein: fixing base (14), first supporting seat (1), second supporting seat (5) enclose into hollow structure with the wallboard, and preceding cylinder body (7) and back cylinder body (9) are located this hollow structure.
4. The syringe pull assist pneumatic master of claim 1, wherein: the guide shafts (8) are provided with 4 guide shafts which respectively horizontally penetrate through four corners of the rear cylinder body (9).
5. The syringe pull assist pneumatic master of claim 1, wherein: the stepping motor (4) is electrically connected with the microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022092988.2U CN213251254U (en) | 2020-09-22 | 2020-09-22 | Auxiliary pneumatic host for drawing and pulling syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022092988.2U CN213251254U (en) | 2020-09-22 | 2020-09-22 | Auxiliary pneumatic host for drawing and pulling syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213251254U true CN213251254U (en) | 2021-05-25 |
Family
ID=75943817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022092988.2U Expired - Fee Related CN213251254U (en) | 2020-09-22 | 2020-09-22 | Auxiliary pneumatic host for drawing and pulling syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213251254U (en) |
-
2020
- 2020-09-22 CN CN202022092988.2U patent/CN213251254U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210525 |