CN215101879U - Uncapping mechanism of vacuum blood collection tube - Google Patents
Uncapping mechanism of vacuum blood collection tube Download PDFInfo
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- CN215101879U CN215101879U CN202120279082.3U CN202120279082U CN215101879U CN 215101879 U CN215101879 U CN 215101879U CN 202120279082 U CN202120279082 U CN 202120279082U CN 215101879 U CN215101879 U CN 215101879U
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- connecting frame
- shaft body
- blood collection
- vacuum blood
- shaft
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- 239000008280 blood Substances 0.000 title claims abstract description 12
- 210000004369 blood Anatomy 0.000 title claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 239000002131 composite material Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 244000309464 bull Species 0.000 description 6
- 238000005070 sampling Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model relates to a decapping mechanism of a vacuum blood collection tube, which comprises an upper cover, a lower connecting frame, a sleeve arranged between the upper cover and the lower connecting frame, an upper connecting frame arranged in the sleeve, a rotary clamping structure arranged between the upper connecting frame and the lower connecting frame and a clamping jaw with one end hinged on the upper connecting frame; the middle lower part of the clamping jaw is provided with a sliding groove, the lower connecting frame is provided with a connecting shaft penetrating in the sliding groove, the bottom ends of three or more clamping jaws are bent inwards and closed to grab the plug cap, and the bottom end of the rotary clamping structure is contacted with the top of the plug cap; a guide rod and a pressure spring are arranged between the upper connecting frame and the upper cover; the utility model discloses the utilization is similar to the rotatory screens structure of push type ballpoint, can use single motor alright realize whole cap process of taking off on the one hand, and on the other hand realizes "hard contact" between each part at the cap in-process of taking off, has improved the reliability.
Description
Technical Field
The utility model belongs to the field of medical equipment, be applied to vacuum tube pretreatment and get rid of the cock cap among the IVD medical external diagnostic instrument, specifically be a mechanism of uncapping of vacuum test tube.
Background
With the serious aging of society, the medical examination demand is more and more big, and the automatic level requirement of IVD trade instrument is also more and more high, and many instruments are limited to technique and cost at present and adopt the puncture sampling scheme, and the washing cross contamination problem that brings is difficult to eliminate, and uses TIP head sampling scheme in traditional full automatic detection instrument operation process, often need pull out the cock cap earlier with the vacuum tube and just can place in the instrument and carry out the detection operation.
One of the existing vacuum tube uncapping modes is multi-motor control, each degree of freedom is controlled by a plurality of motors, and the functions of clamping, rotating, lifting and the like of a clamping jaw are respectively realized, so that the mechanism cost and complexity are increased, and the software control difficulty is increased; the other type is that the iron wire hook moves along the groove and is matched with the single motor to realize uncapping, and the uncapping process in the mode depends on the stress of the hook, so that the requirement on the elasticity of the hook is high, and the long-time use has unhooking risk.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a uncapping mechanism of vacuum test tube is provided, can realize pressing from both sides tight rubber stopper cap, rotatory uncapping, the whole vacuum tube uncapping process of closing the stopper cap and loosening the clamping jaw at last.
The utility model adopts the technical proposal that: a cap removing mechanism of a vacuum blood collection tube comprises an upper cover, a lower connecting frame, a sleeve arranged between the upper cover and the lower connecting frame, an upper connecting frame arranged in the sleeve, a rotary clamping structure arranged between the upper connecting frame and the lower connecting frame and a clamping jaw with one end hinged to the upper connecting frame;
the middle lower part of the clamping jaw is provided with a sliding groove, the lower connecting frame is provided with a connecting shaft penetrating in the sliding groove, the bottom ends of three or more clamping jaws are bent inwards and closed to grab the plug cap, and the bottom end of the rotary clamping structure is contacted with the top of the plug cap;
a guide rod and a first pressure spring are arranged between the upper connecting frame and the upper cover.
Furthermore, the rotary clamping structure comprises a first rotary gear, a second rotary gear and a fixed sleeve, wherein the first rotary gear comprises a first shaft body, a first ratchet arranged on the outer edge of the top of the first shaft body, a first limiting groove arranged on the side wall of the first shaft body and a limiting bulge arranged on the outer wall of the first shaft body;
the second rotating gear comprises a second shaft body, a second ratchet arranged on the outer edge of the top of the second shaft body and a second limiting groove arranged on the outer side wall of the second shaft body, and a connecting column used for supporting the plug cap is arranged at the bottom of the second shaft body;
the fixed sleeve comprises a cylinder body and a limiting strip arranged on the inner side wall of the cylinder body, the first rotating gear and the second rotating gear are sleeved in the cylinder body, and the limiting strip is matched with the first limiting groove and the second limiting groove;
the upper end of the first shaft body is rotatably connected with the upper connecting frame, the first ratchet is located at the lower end and matched with the second ratchet, and the connecting column penetrates through the lower connecting frame.
Furthermore, a pin shaft and a hole which are matched with each other are arranged between the first shaft body and the second shaft body.
Further, the cylinder body is fixed on the lower connecting frame.
Furthermore, the first shaft body is rotatably connected with the upper connecting frame through a rotating shaft or a composite bearing.
Furthermore, a rotation guide and a second pressure spring are arranged between the rotating shaft or the composite bearing and the upper cover.
Furthermore, the bottom end of the connecting column is provided with a notch.
Furthermore, the bottom of the clamping jaw is provided with an inward-bent clamping part.
Furthermore, a driving screw motor is connected above the upper cover.
The utility model discloses an actively the effect does: the utility model discloses the utilization is similar to the rotatory screens structure of push type ballpoint, can use single motor alright realize whole cap process of taking off on the one hand, and on the other hand realizes "hard contact" between each part at the cap in-process of taking off, has improved the reliability.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of a first rotating gear of the present invention;
fig. 3 is a schematic structural view of a second rotary gear of the present invention;
fig. 4 is a schematic structural view of a third rotary gear of the present invention;
fig. 5-10 are schematic views of the working process of the present invention.
Detailed Description
As shown in fig. 1-4, the utility model discloses an upper cover 1 and lower link 12 that are the disc, set up sleeve 2 between upper cover 1 and lower link 12, the last link 5 of cover in sleeve 2, set up rotatory screens structure and the clamping jaw 10 of one end hinge on last link 5 between connecting from top to bottom, the middle part of clamping jaw 10 leans on the lower position to be equipped with the spout 11 of long circle, be equipped with the connecting axle of wearing to put in spout 11 on link 12 down, the bottom of three or more (be 3 in this embodiment) clamping jaw 10 is inwards buckled and is drawn close to, and be equipped with joint portion on the inside wall in clamping jaw 10's bottom, the bottom of rotatory screens structure and the top contact of gag, be equipped with guide bar and first pressure spring 4 between last link 5 and upper cover 1. When the automatic screw feeding mechanism is used, the automatic screw feeding mechanism is matched with a driving screw motor, the driving screw motor is connected to the top surface of the upper cover 1, particularly, the whole mechanism is driven to move up and down, the driving screw motor can also be installed on one side of the sleeve 2, and at the moment, a section of screw rod needs to be additionally connected to the upper portion of the upper cover 1.
The utility model discloses a rotatory screens structure is similar with the structure of adopting on the push type ballpoint, particularly, and it includes first bull gear 7, second bull gear 9 and fixed sleeve 8.
The fixed sleeve 8 comprises a cylinder 801 fixed on the lower connecting frame 12 and limiting strips 802 (in this embodiment, there are 3 limiting strips) arranged on the inner side wall of the cylinder 801, and the first rotating gear 7 and the second rotating gear 9 are both sleeved in the cylinder 801.
The first rotating gear 7 comprises a first shaft body 701, a first ratchet 702 arranged on the outer edge of the top of the first shaft body 701, a first limit groove 704 arranged on the side wall of the first drawer 701 and used for matching with the limit strip 802, and a limit protrusion 703 arranged on the outer wall of the first shaft body 701, wherein after the first shaft body 701 is inserted into the cylinder body 801, the limit protrusion 703 can be matched with the top surface of the side wall of the cylinder body 801 to limit the descending position of the cylinder body. The first rotating gear 7 is rotatably connected to the upper connecting frame 5, and specifically, the first shaft body 701 is connected to the upper connecting frame 5 through a rotating shaft or a composite bearing (a rotating bearing and a cross-sectional thrust bearing), which can reduce friction.
The second rotating gear 9 comprises a second shaft body 902, a second ratchet 903 arranged on the outer edge of the top of the second shaft body 902 and a second limiting groove 904 arranged on the outer side wall of the second shaft body 902, the bottom of the second shaft body 902 is connected with a connecting column 901 which props against the plug cap, the bottom of the connecting column 901 is provided with a notch 905, and when the jacking force is large enough after the plug cap of the vacuum tube is tightly attached to the plug cap, the second rotating gear drives the plug cap to rotate.
The second ratchet 903 is matched with the first ratchet 702, and is first, the second spacing groove is matched with the spacing strip 802, meanwhile, a guide rod above the upper connecting frame 5 and the first pressure spring 4 provide thrust, a structure similar to a push type ball pen can be realized under the driving of the driving screw motor, the driving screw motor drives the whole mechanism to downwards compress the plug cap, the upper connecting frame 5 can move up and down in the sleeve 2, so that the bottom of the clamping jaw 10 is driven to be outwards opened or inwards closed, when the limiting position is inwards closed, the clamping part at the bottom can clamp the plug cap, the plug cap can be driven to rotate, the plug cap is pulled out, and detailed description can be carried out by combining specific working steps.
Preferably, a pin shaft and a hole which are matched with each other are arranged between the first shaft body 701 and the second shaft body 902, in this embodiment, a hole is formed in the center of the first shaft body 701, a pin shaft is arranged in the center of the second shaft body 902, and the first shaft body 701 and the second shaft body are matched with each other by inserting the pin shaft and the hole.
Preferably, a rotation guide and a second pressure spring 3 are provided between the rotating shaft or the composite bearing and the upper cover 1.
The working process of the present invention is described in detail with reference to the attached drawings 5-9:
in the initial state, the first and second rotary gears are both in the lowermost position, and the jaws 10 are in the open state.
1) The driving screw motor drives the utility model discloses the downstream, the lower part of spliced pole 901 is withstood on the test tube top the utility model discloses the in-process that the main part descends, fixed sleeve 8 is fixed with lower link 12, the second spacing groove 904 of second bull gear 9 side cooperates with the inboard spacing 802 of fixed sleeve 8, be relative upward movement, jack-up first bull gear 7 gradually, link 5 in the jack-up above the axis of rotation, thereby drive the clamping jaw 10 upward movement of metal, the clamping jaw 10 lower part begins to draw close inwards, realize holding tightly the action, until second bull gear 9 pushes up first bull gear 7 from the spacing 802 of fixed sleeve 8. As shown in fig. 5.
2) After the first rotating gear 7 is pushed away from the limiting strip 802 of the fixed sleeve 8, the rotating shaft drives the first rotating gear 7 to move downwards under the action of the upper compression spring and slide to the bottom along the inclined surface. As shown in fig. 6.
3) At the moment, the vacuum tube plug cap is tightly held, the screw rod motor is driven to drive the uncapping mechanism body to move upwards, and the clamping jaw part and the vacuum tube are relatively static until the upper connecting frame 5 is contacted with the upper edge of the rotating shaft. At this moment, the fixing sleeve 8 continues to move upwards, the first rotating gear 7 continues to drive the clamping jaw 10 to slide downwards relative to the mechanism body along the inclined plane of the ratchet until the top of the limiting strip 802 is clamped in the teeth of the first rotating gear 7, and the structure of holding tightly is limited. And continuing to move upwards to complete uncapping. As illustrated in fig. 7.
4) After the vacuum tube finishes sampling, the screw rod motor is driven to drive the uncapping module to move downwards, the uncapping module is plugged into the cap and jacks up the second rotating gear 9 to drive the first rotating gear 7 until the first rotating gear 7 is separated from the limiting strip 802 again. As shown in fig. 8.
5) The first rotary gear 7 now slides down the ramp of the ratchet teeth to the root of the ratchet teeth. As shown in fig. 9.
6) The driving screw motor drives the mechanism to move upwards, oppositely, the first rotating gear 7 continues to slide downwards along the inclined plane ratchet until the limiting strip 802 enters the first limiting groove 704, at the moment, the limiting protrusion 703 cylinder 801 of the first rotating gear 7 is contacted to drive the clamping jaw to open downwards, the loosening action is completed, and the structure limiting at the moment is realized. The mechanism main body continues to move upwards, and the action of plugging the cap is finished. As shown in fig. 10.
The utility model discloses a novel structure transmission mode, only need a motor alright realize self-holding rubber stopper cap, rotatory decapping, the whole vacuum tube decapping process of the tight stopper cap of last lid and unclamping the clamping jaw.
Claims (9)
1. A uncapping mechanism of a vacuum blood collection tube is characterized by comprising an upper cover (1), a lower connecting frame (12), a sleeve (2) arranged between the upper cover (1) and the lower connecting frame (12), an upper connecting frame (5) arranged in the sleeve (2), a rotary clamping structure arranged between the upper connecting frame (5) and the lower connecting frame (12) and a clamping jaw (10) with one end hinged to the upper connecting frame (5);
a sliding groove (11) is formed in the middle of the clamping jaw (10) close to the lower position, a connecting shaft penetrating in the sliding groove (11) is arranged on the lower connecting frame (12), the bottom ends of three or more clamping jaws (10) are bent inwards and closed to grab the plug cap, and the bottom end of the rotary clamping structure is in contact with the top of the plug cap;
a guide rod and a first pressure spring (4) are arranged between the upper connecting frame (5) and the upper cover (1).
2. The uncapping mechanism of the vacuum blood collection tube of claim 1, wherein the rotational detent structure comprises a first rotating gear (7), a second rotating gear (9) and a fixing sleeve (8), the first rotating gear (7) comprises a first shaft body (701), a first ratchet (702) arranged on the outer edge of the top of the first shaft body (701), a first limit groove (704) arranged on the side wall of the first shaft body (701) and a limit protrusion (703) arranged on the outer wall of the first shaft body (701);
the second rotating gear (9) comprises a second shaft body (902), a second ratchet (903) arranged on the outer edge of the top of the second shaft body (902) and a second limiting groove (904) arranged on the outer side wall of the second shaft body (902), and a connecting column (901) used for propping against the plug cap is arranged at the bottom of the second shaft body (902);
the fixed sleeve (8) comprises a cylinder body (801) and a limiting strip (802) arranged on the inner side wall of the cylinder body (801), a first rotating gear (7) and a second rotating gear (9) are sleeved in the cylinder body (801), and the limiting strip (802) is matched with a first limiting groove (704) and a second limiting groove (904);
the upper end of the first shaft body (701) is rotatably connected with the upper connecting frame (5), the first ratchet (702) is matched with the second ratchet (903), and the connecting column (901) penetrates through the lower connecting frame (12).
3. The uncapping mechanism of claim 2, wherein a pin and a hole are provided between said first shaft (701) and said second shaft (902) for engaging with each other.
4. The uncapping mechanism for vacuum blood collection tubes according to claim 2, wherein said tube body (801) is fixed to the lower connecting frame (12).
5. The uncapping mechanism of vacuum blood collection tubes of claim 2, wherein said first shaft body (701) is rotatably connected with said upper connecting frame (5) through a rotating shaft or a composite bearing.
6. The uncapping mechanism of vacuum blood collection tube according to claim 5, wherein a rotation guide and a second compression spring (3) are provided between the rotation shaft or the composite bearing and the upper cover (1).
7. The uncapping mechanism of vacuum blood collection tube according to claim 2, wherein the bottom end of said connecting column (901) is provided with a notch (905).
8. The uncapping mechanism of the vacuum blood collection tube according to claim 1, wherein the bottom end of the clamping jaw (10) is provided with an inward-bent clamping portion.
9. The uncapping mechanism of the vacuum blood collection tube according to claim 1, wherein a driving screw motor is connected above the upper cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120279082.3U CN215101879U (en) | 2021-02-01 | 2021-02-01 | Uncapping mechanism of vacuum blood collection tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120279082.3U CN215101879U (en) | 2021-02-01 | 2021-02-01 | Uncapping mechanism of vacuum blood collection tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215101879U true CN215101879U (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120279082.3U Active CN215101879U (en) | 2021-02-01 | 2021-02-01 | Uncapping mechanism of vacuum blood collection tube |
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| Country | Link |
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| CN (1) | CN215101879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112811374A (en) * | 2021-02-01 | 2021-05-18 | 石家庄禾柏生物技术股份有限公司 | Uncapping mechanism of vacuum blood collection tube |
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2021
- 2021-02-01 CN CN202120279082.3U patent/CN215101879U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112811374A (en) * | 2021-02-01 | 2021-05-18 | 石家庄禾柏生物技术股份有限公司 | Uncapping mechanism of vacuum blood collection tube |
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