CN112584931A - Test tube clamping device and method for occasions with insufficient space - Google Patents

Test tube clamping device and method for occasions with insufficient space Download PDF

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Publication number
CN112584931A
CN112584931A CN201980001176.XA CN201980001176A CN112584931A CN 112584931 A CN112584931 A CN 112584931A CN 201980001176 A CN201980001176 A CN 201980001176A CN 112584931 A CN112584931 A CN 112584931A
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China
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clamping jaw
fan
gear
test tube
shaped
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CN201980001176.XA
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CN112584931B (en
Inventor
孙启鹏
张立海
董飒英
王吉宁
王峰
苏桂香
袁圣磊
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Yantai Addcare Bio Tech Ltd
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Yantai Addcare Bio Tech Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L9/00Supporting devices; Holding devices
    • B01L9/06Test-tube stands; Test-tube holders

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  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Manipulator (AREA)

Abstract

A test tube clamping device and method for occasions with insufficient space are disclosed, wherein a cam (4) rotates and is in intermittent contact with a rolling bearing (5) to enable two clamping jaw bodies (9) to be opened, a reset module (7) drives the opened clamping jaw bodies (9) to be closed, the cam (4) is connected with a gear shaft (8), the upper end of the gear shaft (8) is connected with a fan-shaped sensing piece (2), two light through ports (14) are symmetrically arranged on the fan-shaped sensing piece (2), and the fan-shaped sensing piece (2) is divided into two fan-shaped areas by the light through ports (14); when the shading edge of the fan-shaped induction piece (2) is close to the clamping jaw inductor (3), the clamping jaw inductor (3) outputs a rising edge signal, and the stop of the stepping motor (11) is controlled according to the rising edge signal; when the shading edge of the fan-shaped induction piece (2) is far away from the clamping jaw inductor (3), the clamping jaw inductor (3) outputs a falling edge signal, and the stop of the stepping motor (11) is controlled according to the falling edge signal. This test tube centre gripping equipment for with the clamp force increase under the volume, adopt fan-shaped response piece, the signal of opening and shutting of clamping jaw is clear and definite, stops the confusion, and the specially adapted space is not enough, can't use the pneumatic clamp tight, needs the occasion of great clamp force again.

Description

Test tube clamping device and method for occasions with insufficient space Technical Field
The invention relates to test tube clamping equipment and method in a situation with insufficient space, and belongs to the technical field of workpiece transfer.
Background
The test tube is widely applied to chemical, biological and clinical medical examination, and medical equipment is more and more automated along with the development of scientific technology. At present, for realizing the automatic taking of blood-filled test tubes, reducing blood pollution and improving blood analysis rate, biochemical analysis equipment on the market generally needs automatic sample introduction, and the automatic taking action realized in the automatic sample introduction process is the key action of automatic sample introduction and the test tubes need to be automatically taken in the limited space of the equipment.
In the traditional technical scheme, the pneumatic clamping jaw is generally adopted to realize insufficient space and large clamping force. For the occasions where pneumatic operation is inconvenient, a motor with a large volume is often needed to provide clamping force, and the application to biochemical analysis equipment is difficult. In addition, to the response piece that the clamping jaw opened and shut, generally adopt slit response piece, when the inductor sensed the slit, the clamping jaw stopped in the position of opening or closing, when sensing the slit again, opened and shut the conversion. In the mode, the opening and closing signals are the same, so that the opening and closing of the clamping jaws are very easy to be disordered.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the test tube clamping equipment and the test tube clamping method in the occasion with insufficient space, which are suitable for the occasions with insufficient space, incapability of using pneumatic clamping and large clamping force, and have clear opening and closing signals of the clamping jaws to avoid disordered opening and closing of the clamping jaws.
The technical scheme for solving the technical problems is as follows: a test tube clamping device for occasions with insufficient space comprises a gear pair, a sector sensing piece, a clamping jaw sensor, a cam, a rolling bearing, a clamping jaw module and a reset module; the clamping jaw sensor is characterized in that a gear shaft is arranged in the center of the gear pair, the gear shaft penetrates through the center of the gear pair, the upper end of the gear shaft is connected with the fan-shaped sensing piece, the clamping jaw sensor is arranged on the side part of the fan-shaped sensing piece, and the fan-shaped sensing piece rotates at a sensing notch of the clamping jaw sensor; the gear shaft lower extreme is connected the cam, the cam both sides are equipped with antifriction bearing, antifriction bearing connects the clamping jaw module, the clamping jaw module includes two clamping jaw bodies, the clamping jaw body coupling the module that resets, the cam is rotatory and make two with antifriction bearing intermittent type's contact the clamping jaw body opens, the clamping jaw body closure after the module drive that resets opens.
As the preferred scheme of the not enough occasion test tube centre gripping equipment in space, gear shaft connection has the gear seat, gear seat upper end is equipped with step motor, step motor is equipped with drive shaft and drive gear, the drive shaft passes the gear seat, drive gear connects the end of drive shaft, drive gear with gear pair meshing.
As the preferred scheme of the insufficient occasion test tube centre gripping equipment in space, the clamping jaw inductor is connected the upper end of gear seat, fan-shaped response piece is located the top of gear seat, the clamping jaw inductor adopts photoelectric sensor, and the gear shaft drives fan-shaped response piece is rotatory in the response breach department of clamping jaw inductor.
As a preferred scheme of the test tube clamping device in the occasion with insufficient space, two light through ports are symmetrically arranged on the fan-shaped sensing piece, and the fan-shaped sensing piece is divided into two fan-shaped areas by the light through ports;
the cam is oval, and two convex edges of the cam are vertically aligned with the convex edges of the sector sensing piece.
As a preferred scheme of the test tube clamping device in the occasion with insufficient space, the lower end of the gear seat is connected with a supporting block, a mounting hole is formed on the supporting block, and the gear pair rotates in the mounting hole; the side part of the lower end of the supporting block is connected with an opening and closing guide rail, and the clamping jaw body is connected with the opening and closing guide rail.
As the preferred scheme of insufficient occasion test tube centre gripping equipment in space, the inside material deficiency inductor that is connected with of installing port, the clamping jaw body is equipped with lacks the material response portion, lack the material response portion move in lack the response breach department of material inductor.
As a preferred scheme of the test tube clamping device on the occasion with insufficient space, the reset module comprises a spring shaft and a reset spring, and the reset spring is sleeved on the spring shaft; the clamping jaw body is provided with a penetrating and inserting part, and the spring shaft penetrates through the penetrating and inserting part.
As the preferable scheme of the test tube clamping equipment on the occasion with insufficient space, the lower end of the supporting block is provided with a clamping part, the reset module comprises a spring shaft and a reset spring, and the two ends of the spring shaft are connected with the clamping part.
The embodiment of the invention also provides a test tube clamping method in the occasion with insufficient space, wherein the cam is adopted to rotate and intermittently contact with the rolling bearing to open the two clamping jaw bodies, and the reset module is used for driving the opened clamping jaw bodies to be closed.
As a preferred scheme of the test tube clamping method in the occasion with insufficient space, the cam is connected with a gear shaft, the upper end of the gear shaft is connected with a fan-shaped sensing piece, two light through ports are symmetrically arranged on the fan-shaped sensing piece, and the fan-shaped sensing piece is divided into two fan-shaped areas by the light through ports;
when the shading edge of the fan-shaped induction piece is close to the clamping jaw inductor, the clamping jaw inductor outputs a rising edge signal, and the stop of the stepping motor is controlled according to the rising edge signal;
when the shading edge of the fan-shaped induction piece is far away from the clamping jaw inductor, the clamping jaw inductor outputs a falling edge signal, and the stop of the stepping motor is controlled according to the falling edge signal.
The invention has the beneficial effects that: the cam rotates and is in intermittent contact with the rolling bearing to open the two clamping jaw bodies, the reset module drives the opened clamping jaw bodies to close, the cam is connected with a gear shaft, the upper end of the gear shaft is connected with a fan-shaped sensing piece, two light through ports are symmetrically arranged on the fan-shaped sensing piece, and the fan-shaped sensing piece is divided into two fan-shaped areas by the light through ports; when the shading edge of the fan-shaped induction piece is close to the clamping jaw inductor, the clamping jaw inductor outputs a rising edge signal, and the stop of the stepping motor is controlled according to the rising edge signal; when the shading edge of the fan-shaped induction piece is far away from the clamping jaw inductor, the clamping jaw inductor outputs a falling edge signal, and the stop of the stepping motor is controlled according to the falling edge signal. The invention adopts a power mode of a stepping motor, a gear reduction and a cam, the clamping force is increased by several times under the same volume, and the fan-shaped induction sheet is adopted, so that the opening and closing signals of the clamping jaw are clear, the disorder is avoided, and the invention is particularly suitable for occasions with insufficient space, incapability of using pneumatic clamping and large clamping force.
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. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic perspective view of a test tube clamping device used in an insufficient space situation according to an embodiment of the present invention;
FIG. 2 is a front view of a test tube holding device for use in situations of insufficient space according to an embodiment of the present invention;
FIG. 3 is a rear view of a test tube holding device for use in situations of insufficient space according to an embodiment of the present invention;
FIG. 4 is a side view of a test tube holding device for use in situations where there is insufficient space provided by embodiments of the present invention;
FIG. 5 is a schematic view of the inside of the test tube holding device in the situation of insufficient space according to the embodiment of the present invention.
In the figure, 1, a gear pair; 2. a sector-shaped sensing piece; 3. a jaw sensor; 4. a cam; 5. a rolling bearing; 6. a jaw module; 7. a reset module; 8. a gear shaft; 9. a jaw body; 10. a gear seat; 11. a stepping motor; 12. a drive shaft; 13. a drive gear; 14. a light-through port; 15. a support block; 16. an installation port; 17. opening and closing the guide rail; 18. a starved sensor; 19. a starved induction section; 20. a spring shaft; 21. a return spring; 22. a penetration portion; 23. a clamping part.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, 2, 3, 4 and 5, a test tube clamping device in a situation of insufficient space is provided, which comprises a gear pair 1, a sector induction member 2, a clamping jaw inductor 3, a cam 4, a rolling bearing 5, a clamping jaw module 6 and a reset module 7; a gear shaft 8 is arranged at the center of the gear pair 1, the gear shaft 8 penetrates through the center of the gear pair 1, the upper end of the gear shaft 8 is connected with the sector-shaped induction part 2, the clamping jaw inductor 3 is arranged on the side part of the sector-shaped induction part 2, and the sector-shaped induction part 2 rotates at an induction gap of the clamping jaw inductor 3; the 8 lower extremes of gear shaft are connected cam 4, 4 both sides of cam are equipped with antifriction bearing 5, antifriction bearing 5 connects clamping jaw module 6, clamping jaw module 6 includes two clamping jaw bodies 9, clamping jaw body 9 is connected reset module 7, cam 4 is rotatory and make two with the intermittent type contact of antifriction bearing clamping jaw body 9 opens, reset module 7 drives the clamping jaw body 9 closure after opening.
In one embodiment of the test tube clamping device in the occasion of insufficient space, the gear shaft 8 is connected with a gear seat 10, the upper end of the gear seat 10 is provided with a stepping motor 11, the stepping motor 11 is provided with a driving shaft 12 and a driving gear 13, the driving shaft 12 penetrates through the gear seat 10, the driving gear 13 is connected to the tail end of the driving shaft 12, and the driving gear 13 is meshed with the gear pair 1. Clamping jaw inductor 3 is connected the upper end of gear seat 10, fan-shaped response 2 is located the top of gear seat 10, clamping jaw inductor 3 adopts photoelectric sensor, and gear shaft 8 drives fan-shaped response 2 is rotatory in clamping jaw inductor 3's response breach department. Two light through openings 14 are symmetrically formed in the fan-shaped sensing piece 2, and the fan-shaped sensing piece 2 is divided into two fan-shaped areas through the light through openings 14. The cam 4 is in an oval shape, and two convex edges of the cam 4 are vertically aligned with the convex edges of the sector-shaped sensing part 2.
Specifically, due to the fact that the cam 4 is designed in an oval shape, when the cam 4 rotates, force can be intermittently (periodically) applied to the rolling bearings 5 on the two sides outwards, so that the clamping jaw bodies 9 of the clamping jaw modules 6 connected with the rolling bearings 5 are opened, and when the cam 4 does not apply force to the rolling bearings 5, the clamping jaw bodies 9 can be closed under the driving of the reset module 7, so that clamping force can be applied to test tubes placed between the clamping jaw bodies 9.
In one embodiment of the test tube clamping device in the occasion of insufficient space, the lower end of the gear seat 10 is connected with a supporting block 15, a mounting hole 16 is formed on the supporting block 15, and the gear pair 1 rotates at the mounting hole 16; the side part of the lower end of the supporting block 15 is connected with an opening and closing guide rail 17, and the clamping jaw body 9 is connected with the opening and closing guide rail 17. The opening and closing guide rail 17 facilitates the jaw body 9 to slide along a specific rail, and improves the stability of opening or closing the jaw body 9. The mounting opening 16 is internally connected with a material shortage sensor 18, the clamping jaw body 9 is provided with a material shortage sensing portion 19, and the material shortage sensing portion 19 moves at a sensing notch of the material shortage sensor 18. Under the clamping jaw body 9 closed state, when there is the test tube of centre gripping between the clamping jaw body 9, lack material response portion 19's position can be in lack material inductor 18's response breach department to can judge that there is the test tube between the clamping jaw body 9, under the clamping jaw body 9 closed state, if there is not the test tube between the clamping jaw body 9, lack material inductor 18 and respond to the existence that can not lack material response portion 19, thereby can judge that there is not the test tube between the clamping jaw body 9. The key points are whether test tubes exist between the clamping jaw bodies 9 or not, the intervals between the clamping jaw bodies 9 are different, and the relative positions of the material shortage sensing part 19 and the material shortage sensor 18 are different.
In one embodiment of the test tube holding device in the occasion of insufficient space, the reset module 7 comprises a spring shaft 20 and a reset spring 21, and the reset spring 21 is sleeved on the spring shaft 20; the jaw body 9 is provided with a penetration portion 22, and the spring shaft 20 penetrates through the penetration portion 22. The lower end of the supporting block 15 is formed with a clamping portion 23, and two ends of the spring shaft 20 are connected with the clamping portion 23. The jaw body 9, the spring shaft 20 and the return spring 21 are engaged with each other, and when the cam 4 does not apply a force to the jaw body 9, the return spring 21 in the expanded state contracts, thereby closing the jaw body 9. The spring shaft 20 is limited by the insertion part 22, so that the accuracy of closing the clamping jaw body 9 is ensured.
The embodiment of the invention also provides a test tube clamping method in the occasion of insufficient space, wherein the cam 4 is adopted to rotate and intermittently contact with the rolling bearing 5 to open the two clamping jaw bodies 9, and the reset module 7 is used for driving the opened clamping jaw bodies 9 to be closed. Cam 4 is connected with gear shaft 8, gear shaft 8 upper end is connected with fan-shaped response piece 2, the symmetry is equipped with two logical light mouth 14 on the fan-shaped response piece 2, leads to light mouth 14 will fan-shaped response piece 2 is separated into two fan-shaped regions. When the shading edge of the fan-shaped induction part 2 is close to the clamping jaw inductor 3, the clamping jaw inductor 3 outputs a rising edge signal, and the stop of the stepping motor is controlled according to the rising edge signal. When the shading edge of the fan-shaped induction part 2 is far away from the clamping jaw inductor 3, the clamping jaw inductor 3 outputs a falling edge signal, and the stop of the stepping motor is controlled according to the falling edge signal.
Specifically, in the case of insufficient space, the test tube clamping process is as follows:
the stepping motor 11 increases the torque force by 4.7 times through the deceleration action of the gear pair 1, and then drives the cam 4 and the sector sensing piece 2 to rotate clockwise. The cam 4 pushes the jaw body 9 open via the rolling bearing 5. When the edge of the light shielding sheet of the fan-shaped induction piece 2 is close to the clamping jaw inductor 3, the clamping jaw inductor 3 outputs a rising edge signal, the stepping motor 11 is stopped, and the clamping jaw body 9 is completely opened at the moment. The stepping motor 11 continues to rotate in the same direction, when the edge of the shading sheet of the sector sensing piece 2 leaves the clamping jaw sensor 3, the clamping jaw sensor 3 outputs a falling edge signal, the stepping motor 11 stops, and at the moment, the clamping jaw is closed under the pushing of the reset spring 21. Under the clamping jaw body 9 closed state, when there is the test tube of centre gripping between the clamping jaw body 9, lack material response portion 19's position can be in lack material inductor 18's response breach department to can judge that there is the test tube between the clamping jaw body 9, under the clamping jaw body 9 closed state, if there is not the test tube between the clamping jaw body 9, lack material inductor 18 and respond to the existence that can not lack material response portion 19, thereby can judge that there is not the test tube between the clamping jaw body 9. The key points are whether test tubes exist between the clamping jaw bodies 9 or not, the intervals between the clamping jaw bodies 9 are different, and the relative positions of the material shortage sensing part 19 and the material shortage sensor 18 are different. The material shortage induction can light up, and a material shortage signal is output.
According to the technical scheme, the cam 4 rotates and is intermittently contacted with the rolling bearing 5 to open the two clamping jaw bodies 9, the reset module 7 drives the opened clamping jaw bodies 9 to be closed, the cam 4 is connected with the gear shaft 8, the upper end of the gear shaft 8 is connected with the fan-shaped sensing part 2, the fan-shaped sensing part 2 is symmetrically provided with two light through ports 14, and the fan-shaped sensing part 2 is divided into two fan-shaped areas by the light through ports 14; when the shading edge of the fan-shaped induction piece 2 is close to the clamping jaw inductor 3, the clamping jaw inductor 3 outputs a rising edge signal, and the stop of the stepping motor is controlled according to the rising edge signal; when the shading edge of the fan-shaped induction part 2 is far away from the clamping jaw inductor 3, the clamping jaw inductor 3 outputs a falling edge signal, and the stop of the stepping motor is controlled according to the falling edge signal. The invention adopts a power mode of a stepping motor 11, a gear reduction and a cam 4, the clamping force is increased by several times under the same volume, and the fan-shaped sensing piece 2 is adopted, so that the opening and closing signals of the clamping jaw are clear, the disorder is avoided, and the invention is particularly suitable for occasions with insufficient space, incapability of using pneumatic clamping and large clamping force.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

  1. The test tube clamping equipment is characterized by comprising a gear pair (1), a fan-shaped sensing piece (2), a clamping jaw sensor (3), a cam (4), a rolling bearing (5), a clamping jaw module (6) and a reset module (7); a gear shaft (8) is arranged at the center of the gear pair (1), the gear shaft (8) penetrates through the center of the gear pair (1), the upper end of the gear shaft (8) is connected with the fan-shaped induction part (2), the clamping jaw inductor (3) is arranged on the side part of the fan-shaped induction part (2), and the fan-shaped induction part (2) rotates at an induction gap of the clamping jaw inductor (3); gear shaft (8) lower extreme is connected cam (4), cam (4) both sides are equipped with antifriction bearing (5), antifriction bearing (5) are connected clamping jaw module (6), clamping jaw module (6) include two clamping jaw bodies (9), clamping jaw body (9) are connected reset module (7), cam (4) are rotatory and make two with antifriction bearing (5) intermittent type's contact clamping jaw body (9) open, the clamping jaw body (9) after reset module (7) drive is opened are closed.
  2. The test tube clamping device for the occasion with insufficient space as claimed in claim 1, wherein the gear shaft (8) is connected with a gear seat (10), a stepping motor (11) is arranged at the upper end of the gear seat (10), the stepping motor (11) is provided with a driving shaft (12) and a driving gear (13), the driving shaft (12) penetrates through the gear seat (10), the driving gear (13) is connected at the tail end of the driving shaft (12), and the driving gear (13) is meshed with the gear pair (1).
  3. The test tube clamping device for the occasion with insufficient space as claimed in claim 2, wherein the clamping jaw sensor (3) is connected to the upper end of the gear seat (10), the sector sensing piece (2) is positioned above the gear seat (10), the clamping jaw sensor (3) adopts a photoelectric sensor, and the gear shaft (8) drives the sector sensing piece (2) to rotate at the sensing notch of the clamping jaw sensor (3).
  4. The test tube clamping device for the occasion with insufficient space as claimed in claim 3, wherein the sector sensing member (2) is symmetrically provided with two light through ports (14), and the light through ports (14) divide the sector sensing member (2) into two sector areas;
    the cam (4) is oval, and two protruding edges of the cam (4) are vertically aligned with the protruding edges of the fan-shaped sensing piece (2).
  5. The test tube clamping device for the occasion with insufficient space as claimed in claim 2, wherein a supporting block (15) is connected to the lower end of the gear seat (10), a mounting opening (16) is formed on the supporting block (15), and the gear pair (1) rotates around the mounting opening (16); the side part of the lower end of the supporting block (15) is connected with an opening and closing guide rail (17), and the clamping jaw body (9) is connected with the opening and closing guide rail (17).
  6. The test tube clamping device for the occasion with insufficient space as claimed in claim 5, wherein a material shortage sensor (18) is connected inside the mounting opening (16), the clamping jaw body (9) is provided with a material shortage sensing part (19), and the material shortage sensing part (19) moves at a sensing gap of the material shortage sensor (18).
  7. The test tube holding device for the occasion of insufficient space as claimed in claim 1, wherein the reset module (7) comprises a spring shaft (20) and a reset spring (21), and the reset spring (21) is sleeved on the spring shaft (20); the clamping jaw body (9) is provided with an inserting part (22), and the spring shaft (20) penetrates through the inserting part (22).
  8. The test tube clamping device for occasions with insufficient space as claimed in claim 5, wherein the lower end of the supporting block (15) is formed with a clamping portion (23), the reset module (7) comprises a spring shaft (20) and a reset spring (21), and two ends of the spring shaft (20) are connected with the clamping portion (23).
  9. A test tube clamping method in the occasion with insufficient space is characterized in that a cam (4) rotates and is in intermittent contact with a rolling bearing (5) to open two clamping jaw bodies (9), and a reset module (7) drives the opened clamping jaw bodies (9) to be closed.
  10. The test tube clamping method for the occasion of insufficient space according to claim 9, wherein the cam (4) is connected with a gear shaft (8), the upper end of the gear shaft (8) is connected with a fan-shaped sensing piece (2), two light through openings (14) are symmetrically formed in the fan-shaped sensing piece (2), and the light through openings (14) divide the fan-shaped sensing piece (2) into two fan-shaped areas;
    when the shading edge of the fan-shaped induction piece (2) is close to the clamping jaw inductor (3), the clamping jaw inductor (3) outputs a rising edge signal, and the stop of the stepping motor is controlled according to the rising edge signal;
    when the shading edge of the fan-shaped induction piece (2) is far away from the clamping jaw inductor (3), the clamping jaw inductor (3) outputs a falling edge signal, and the stop of the stepping motor is controlled according to the falling edge signal.
CN201980001176.XA 2019-07-18 2019-07-18 Test tube clamping device and method for occasions with insufficient space Active CN112584931B (en)

Applications Claiming Priority (1)

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PCT/CN2019/096532 WO2021007851A1 (en) 2019-07-18 2019-07-18 Test tube clamping device and method for occasions in which space is insufficient

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CN112584931A true CN112584931A (en) 2021-03-30
CN112584931B CN112584931B (en) 2021-11-16

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CN115402989A (en) * 2022-08-31 2022-11-29 中元汇吉生物技术股份有限公司 Embrace and press from both sides mechanism, closing cap device and laboratory automation system
CN118634879B (en) * 2024-08-14 2024-10-22 连云港市食品药品检验检测中心 Multistation test tube processing platform

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CN108543557A (en) * 2018-06-30 2018-09-18 湖南迪赛生物科技有限公司 A kind of cam rotary type clamp device
CN209061180U (en) * 2018-10-23 2019-07-05 王潇龙 Vibrating type test tube clamping device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117664865A (en) * 2024-02-01 2024-03-08 佳木斯大学 Reagent disc conveyer
CN117664865B (en) * 2024-02-01 2024-04-30 佳木斯大学 Reagent disc conveyer

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