CN215415451U

CN215415451U - Driving module of test body of thrombelastogram instrument

Info

Publication number: CN215415451U
Application number: CN202120687056.4U
Authority: CN
Inventors: 艾峰; 黄阁锋; 王石磊
Original assignee: Shenzhen Youdi Biotechnology Co ltd
Current assignee: Shenzhen Youdi Biotechnology Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2022-01-04
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses a driving module of a test body of a thrombelastogram instrument, which comprises: the equipment bottom plate is provided with a motor mounting plate; the motor is arranged on the motor mounting plate, and an eccentric assembly is fixedly arranged on a rotating shaft of the motor; a test body having a rotating portion, the test body being mounted to the device base plate; one end of the swing rod is fixed on the rotating part, and the other end of the swing rod is provided with a long hole; the long hole is sleeved on the eccentric component, and the motor drives the swing rod to swing back and forth relative to the equipment bottom plate through the eccentric component. According to the technical scheme, the motor drives the swing rod to indirectly drive the rotating part of the testing body to rotate back and forth, the rotating action of the motor is converted into the swinging action of the swing rod, and the back and forth rotation of the rotating part of the testing body by the driving module is realized.

Description

Driving module of test body of thrombelastogram instrument

Technical Field

The utility model relates to the technical field of thromboelastogram instruments, in particular to a driving module of a test body of a thromboelastogram instrument.

Background

A Thromboelastography (TEG) is an analyzer for monitoring a coagulation process from the whole dynamic process of platelet aggregation, coagulation, fibrinolysis, etc., and is used for monitoring and analyzing a coagulation state of a blood sample. Because need be incessant rotate the test cup, usually to the test body make a round trip to rotate to reach the test result, consequently, the urgent need on the market of a simplified miniature drive module is in order to realize the rotation back and forth to the rotating part of one or more test body.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a driving module of a test body of a thromboelastogram instrument, and aims to provide a driving module structure for driving the test body to rotate back and forth.

In order to achieve the above object, the present invention provides a driving module for a test body of a thromboelastogram apparatus, comprising:

the equipment bottom plate is provided with a motor mounting plate;

the motor is arranged on the motor mounting plate, and an eccentric assembly is fixedly arranged on a rotating shaft of the motor;

a test body having a rotating portion, the test body being mounted to the device base plate; and

one end of the swing rod is fixed on the rotating part, and the other end of the swing rod is provided with a long hole; the long hole is sleeved on the eccentric component, and the motor drives the swing rod to swing back and forth relative to the equipment bottom plate through the eccentric component.

Optionally, an opening is provided at one end of the elongated hole.

Optionally, the eccentric assembly includes an eccentric wheel shaft and a rotating member fixedly mounted on the eccentric wheel shaft, the elongated hole is sleeved on the rotating member, an axis of the rotating member is spaced from an axis of the motor rotating shaft, and the motor drives the rotating member to rotate in the elongated hole.

Optionally, the rotating member is a first bearing, the first bearing is mounted on the end face of the eccentric wheel shaft, the axis of the first bearing is spaced from the axis of the motor rotating shaft, and the long hole of the swing rod is sleeved on the first bearing.

Optionally, an installation column is arranged on the end face of the eccentric wheel shaft, the first bearing is sleeved on the installation column, and clamp springs used for limiting the movement of the first bearing are arranged on the circumferential surfaces of the installation columns on the two sides of the first bearing.

Optionally, an end of the first bearing is fixedly provided with an extension plate for preventing the elongated hole from being separated from the contact of the first bearing.

Optionally, the motor is installed downwards on the motor mounting panel, the lower extreme fixed mounting of first bearing has the epitaxial plate, the epitaxial plate width is greater than the width in rectangular hole.

Optionally, the eccentric assembly includes an eccentric wheel shaft, the elongated hole is sleeved on the eccentric wheel shaft, and the motor drives the eccentric wheel shaft to rotate in the elongated hole.

Optionally, one end of the swing rod is provided with a fitting hole, and the fitting hole of the swing rod is tightly fitted with the circumferential surface of the rotating portion.

Optionally, the number of the test bodies is at least two, each test body is correspondingly provided with one swing rod, and the long holes of the swing rods are all sleeved on the same eccentric assembly.

According to the technical scheme, the motor drives the swing rod to swing, so that the rotating motion of the motor is converted into the swinging motion of the swing rod, one end of the swing rod is fixed to the rotating part of the testing body, the swinging motion of the swing rod is converted into the reciprocating rotation of the rotating part, and the motor indirectly drives the rotating part to rotate back and forth through the swing rod, so that the reciprocating rotation of the rotating part by the driving module is realized.

Secondly, can also make a motor drive the rotating part of a plurality of test bodies and make a round trip to rotate, occupation space is little, swings the rotating part of the test body in thrombelastogram appearance to reach good test result.

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 is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a driving module of a test body of a thromboelastogram apparatus according to an embodiment of the utility model;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

fig. 4 is another view angle structure view of fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Equipment backplane	110	Motor mounting plate
200	Electric machine	300	Eccentric assembly
				400	Test body	310	Eccentric wheel shaft
500	Swing link	320	Rotating member
				510	Rectangular hole	330	Clamp spring
520	Opening of the container	340	Epitaxial plate

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In the thrombelastogram instrument, a test cup is arranged on a rotating part of a test body and is connected with the test cup through a torsion wire, a corner detection assembly is arranged on the torsion wire, test liquid is poured into the test cup, a probe extends into the test liquid and is not in contact with the test cup, and the rotating part of the test body rotates back and forth so as to drive a suspension wire rotating shaft to rotate. In this way, the torque force applied to the torsion wire by the test liquid can be obtained by analyzing the torsion variation of the torsion wire. And analyzing the data of the torque force obtained by the test to further obtain the thrombelastogram of the blood in the sample to be tested.

The utility model provides a driving module of a test body of a thromboelastogram instrument.

In an embodiment of the present invention, as shown in figures 1 to 4,

this thrombelastogram appearance test body drive module includes:

an apparatus base plate 100 provided with a motor mounting plate 110;

the motor 200 is mounted on the motor mounting plate 110, and an eccentric assembly 300 is fixedly mounted on a rotating shaft of the motor 200;

a test body 400, the test body 400 having a rotating portion, the test body 400 being mounted to the apparatus base plate 100; and

a swing link 500, one end of the swing link 500 being fixed to the rotating part 400, and the other end thereof being provided with a long hole 510; the elongated hole 510 is sleeved on the eccentric assembly 300, and the motor 200 drives the swing link 500 to swing back and forth relative to the device base plate 100 through the eccentric assembly 300.

According to the technical scheme, the motor 200 is adopted to drive the eccentric assembly 300 to eccentrically rotate around the motor 200, and then the eccentric assembly 300 drives the swing rod 500 to swing relative to the equipment bottom plate 100, so that the rotating part of the test body 400 can be rotated back and forth, and the rotating part of the test body 400 of the thromboelastography instrument can be driven. And motor 200 and test body 400 components of a whole that can function independently set up, adjust the position of motor 200 under the condition of not adjusting test body 400 position for the drive module of thrombelastogram appearance can be more reasonable carry out the overall arrangement. When the motor 200 needs to drive the rotating parts of the plurality of test bodies 400 to rotate back and forth, only the swing rods 500 connected with different test bodies 400 need to be sleeved on the same eccentric assembly 300, so that the motor 200 can drive the plurality of test bodies 400 to rotate back and forth, the power requirements of a plurality of test channels can be met, the number of the motors 200 is greatly reduced, and the overall driving structure is optimized.

The structure of the driving module of the test body of the thromboelastography device is described below by way of example, and the structure of the swing link 500 is described first, and then the specific structure of the eccentric assembly 300 is described, and then the expansion and application of the whole structure are explained.

It is envisioned that the motor 200 drives the swing link 500 to swing back and forth relative to the device base plate 100 through the eccentric assembly 300, and the length direction of the elongated hole 510 is consistent with the extending direction of the swing link 500.

Specifically, in order to facilitate the sleeving of the elongated hole 510 on the eccentric assembly 300, an opening 520 is disposed at one end of the elongated hole 510, and the eccentric assembly 300 can be brought into the elongated hole 510 through the opening 520. The opening 520 is formed in one end of the elongated hole 510, when the number of the eccentric assemblies 300 driving the testing bodies 400 needs to be increased, the eccentric assemblies 300 do not need to be dismounted and then the elongated hole 510 is sleeved, the swing rod 500 can be sleeved into the elongated hole 510 only through the opening 520, and the assembly and disassembly are convenient. Of course the opening 520 of seting up is easy and eccentric component 300 block, leads to eccentric component 300 and opening 520 card to die, causes the dead phenomenon of card in order to prevent opening 520 and eccentric component 300 block, and furtherly, opening 520 runs through the one end that test body 400 was kept away from to pendulum rod 500 along the length direction in bar hole, and the width in opening 520 and bar hole, and opening 520 and bar hole junction are smooth, and eccentric component 300 is difficult to die with the opening 520 card in bar hole. From another perspective, the opening 520 and the strip-shaped hole are connected into a whole, and it can also be considered that the swing link 500 is provided with a strip-shaped groove formed by the strip-shaped hole and the opening 520 thereof.

Regarding the structure of the eccentric assembly 300:

referring to fig. 2, in some embodiments, the eccentric assembly 300 includes an eccentric shaft 310, the elongated hole 510 is sleeved on the eccentric shaft 310, and the motor 200 rotates the eccentric shaft 310 in the elongated hole 510. When the plurality of test bodies 400 need to be driven to rotate back and forth, the swing rods 500 connected with each test body 400 are sleeved on the same eccentric wheel shaft 310, so that the plurality of test bodies 400 can be rotated back and forth. The eccentric assembly 300 is simple and reliable in structure and convenient and fast to install.

However, the above structure has some disadvantages, for example, when one motor 200 needs to drive the rotating portions of the plurality of test bodies 400 to rotate back and forth, the eccentric axle 310 needs to be very thick to sleeve the plurality of swing rods 500 on the eccentric axle 310, so the weight of the eccentric axle 310 is larger, and the motor 200 with stronger power needs to drive the rotating portions of the plurality of test bodies 400 to rotate back and forth. In addition, since the swing rod 500 is directly sleeved on the eccentric axle 310, the width of the swing rod 500 needs to be wider than the long diameter of the eccentric axle 310, increasing the width of the swing rod 500 will inevitably bring about the weight increase of the swing rod 500, and the power of the motor 200 needs to be further increased to drive the rotating portions of the plurality of test bodies 400 to rotate back and forth. Therefore, in other embodiments, the eccentric assembly 300 includes an eccentric axle 310 and a rotating member 320 fixedly mounted on the eccentric axle 310, the elongated hole 510 is sleeved on the rotating member 320, the axis of the rotating member 320 is spaced from the axis of the rotating shaft of the motor 200, and the motor 200 rotates the rotating member 320 in the elongated hole 510. By installing the rotating member 320 on the eccentric wheel axle 310, the elongated hole 510 is sleeved on the rotating member 320, the axis of the rotating member 320 is spaced from the axis of the rotating shaft of the motor 200, when the motor 200 needs to drive the rotating portions of the plurality of test bodies 400 to rotate, only the thickness of the rotating member 320 needs to be increased, so that all the swing rods 500 can be sleeved on the rotating member 320, the thickness of the eccentric wheel axle 310 does not need to be increased, the overall thickness is reduced as much as possible, in addition, the width of the rotating member 320 can be far smaller than the minimum diameter width of the eccentric wheel axle 310, and therefore, the width of the swing rod 500 can also be far smaller than the minimum diameter width of the eccentric wheel axle 310. The whole weight is reduced as much as possible while the rotating part which drives the test body 400 as much as possible is rotated back and forth, and when the motor 200 with the same power is used, the motor 200 can drive the rotating part of the test body 400 as much as possible to rotate back and forth. The two installation modes can be selected according to the working environment. Regarding the arrangement of the rotating member 320, the rotating member 320 may be disposed on the end surface of the eccentric shaft 310, or disposed on the circumferential surface of the eccentric shaft 310, and the rotating member 320 is preferably a pulling body structure, such as a cylinder, extending along the axial direction of the rotating shaft of the motor 200.

Design for reducing useless power loss of motor 200:

taking the swing link 500 as an example, when the motor 200 drives the swing link 500 to further drive the rotating portion of the testing body 400 to rotate, the rotating member 320 slides in the elongated hole 510, so that the motor 200 is not only stressed greatly when rotating, but the rotating member 320 and the swing link 500 can generate noise. The rotor 320 is also susceptible to wear over extended periods of operation, reducing the performance of the test body 400. Therefore, in some embodiments, the rotating member 320 is a first bearing, the first bearing is mounted on the end surface of the eccentric shaft 310, the axis of the first bearing is spaced from the axis of the rotating shaft of the motor 200, and the elongated hole 510 of the swing link 500 is sleeved on the first bearing. The axial line of the first bearing is spaced from the axial line of the rotating shaft of the motor 200 so that the motor 200 drives the first bearing to eccentrically rotate, thereby realizing that the first bearing drives the swing rod 500 to swing back and forth relative to the device base plate 100. And when the rotating member 320 is configured as the first bearing, the first bearing performs rolling motion in the elongated hole 510, which can greatly reduce the resistance between the first bearing and the swing link 500 when the motor 200 rotates compared with sliding motion, and reduce the loss of idle work of the motor 200. In order to enable the first bearing to be better installed on the eccentric wheel shaft 310, further, an installation column is arranged on the end face of the eccentric wheel shaft 310, the first bearing is sleeved on the installation column, and a clamp spring 330 for limiting the movement of the first bearing is arranged on the circumferential surface of the installation column on the two sides of the first bearing. The first bearing is sleeved in the mounting column, the first bearing is tightly connected with the mounting column, the circumferential surface of the mounting column is provided with a clamp spring 330 used for limiting the first bearing to move, at least one clamp spring 330 is arranged, when one clamp spring 330 is arranged, the clamp spring 330 is arranged at one end of the mounting column far away from the eccentric wheel shaft 310, and the first bearing is prevented from falling off from the mounting column during long-time work. Preferably, there are two snap springs 330, two snap springs 330 are respectively installed on the installation columns on both sides of the first bearing, and when two snap springs 330 are respectively installed on the installation columns on both sides of the first bearing, not only can the first bearing be prevented from being separated from the installation columns, but also the first bearing can be prevented from contacting with the eccentric end face, and the abrasion of the first bearing is reduced. Further, in order to make the installation of the snap spring 330 more secure, a snap groove for receiving the snap spring 330 is provided on the installation post. It is expected that the component for limiting the displacement of the first bearing is not only the snap spring 330, but also other components for limiting the displacement of the first bearing, such as a clamping block, a limiting nut, etc., which are conceivable by those skilled in the art, and since the components such as the clamping block, the limiting nut, etc., are all components commonly used by those skilled in the art, the connection manner between the above components and the mounting column is not described herein again, the present invention is not limited to the use of the snap spring 330, and other clamping structures capable of achieving the same limitation of the displacement of the first bearing are all the protection scope of the present invention.

The overall structure is expanded:

since the eccentric assembly 300 is sleeved in the elongated hole 510 of the swing rod 500, and the eccentric assembly 300 is not fixedly connected to the swing rod 500, the swing rod 500 may be separated from the eccentric assembly 300 due to deviation when swinging for multiple times, and optionally, the end of the first bearing is fixedly provided with the extension plate 340 for preventing the elongated hole 510 from being separated from the first bearing to contact in order to prevent the swing rod 500 from being separated from the eccentric assembly 300. Since the extension plate 340 serves to separate the elongated hole 510 from the first bearing contact, it is expected that the extension plate 340 has a width greater than that of the elongated hole 510, and thus the extension plate 340 is configured to limit the swing link 500. When the extension plates 340 are arranged in one, the extension plates 340 are arranged at the end parts of the first bearings below the swing rods 500, and because the end, away from the test body 400, of the swing rod 500 has no supporting point, the end, away from the test body 400, of the swing rod 500 is easy to deviate downwards under the action of gravity, and the extension plates 340 can play a role in lifting the swing rod 500 when being arranged below the swing rod 500; when the two extending plates 340 are arranged, the two extending plates 340 are respectively arranged at the end parts of the two sides of the first bearing, and the end parts of the extending plates 340 respectively arranged at the two sides of the first bearing can not only limit the swing rod 500 to deviate downwards, but also limit the swing rod 500 to deviate upwards, so that the swing rod 500 is limited at the two sides of the first bearing. The extension plate 340 may be mounted on the first bearing, or may be mounted on a fixed structure on both sides of the first bearing, and when the extension plate 340 is mounted on the first bearing, the extension plate 340 may be integrally formed with the first bearing. Taking the first bearing sleeved on the mounting post as an example, the extension plate 340 is fixedly mounted on the mounting post at the end of the first bearing. When the first bearing rotates, the swing link 500 can reduce friction with the extension plate 340.

In an embodiment, referring to fig. 1 and fig. 2, as an example, the motor 200 is installed on the motor installation plate 110 downward, the lower end of the first bearing is fixedly installed with the extension plate 340, and the width of the extension plate 340 is greater than the width of the elongated hole 510. Further, the upper end of the first bearing is also fixedly provided with the extension plate 340. The extension plate 340 can limit the swing link 500 to be sleeved in the first bearing.

In order to facilitate the first bearing to be sleeved with as many swing rods 500 as possible, the lifting motor 200 drives the swing rods 500 to be parallel to the swing rods 500, and further, the swing rods 500 are horizontally arranged as much as possible, so that the first bearing is sleeved with the swing rods 500 as much as possible, and the whole structure is more compact. The swing link 500 is fixedly installed on the rotating portion of the testing body 400, for example, the swing link 500 is fastened to the rotating portion of the testing body 400 by a bolt assembly, and for example, the swing link 500 can also be directly welded to the rotating portion of the testing body 400, so long as the swing link 500 can be fixedly installed on the rotating portion of the testing body 400, which can be applied in the present invention. In some embodiments, a fitting hole is formed at one end of the swing link 500, and the fitting hole of the swing link 500 is tightly fitted to the circumferential surface of the rotating part 400. In order to further ensure the tight fit between the swing link 500 and the rotating portion of the testing body 400, optionally, a gear is disposed on the circumferential surface of the rotating portion of the testing body 400, and an inner ring of the fitting hole of the swing link 500 is provided with an inner ring tooth engaged with the gear. Through the engagement of the internal teeth and the gear, the swing link 500 can firmly drive the rotation part of the test body 400 to be rotated. The test body 400 is mounted on the device bottom plate, and preferably, the test body 400 is fixedly mounted on the device bottom plate.

Referring to fig. 3, in order to enable one motor 200 to drive a plurality of test bodies 400 to rotate back and forth as much as possible, optionally, at least two test bodies 400 are provided, each test body 400 is correspondingly provided with one swing rod 500, and the elongated hole 510 of each swing rod 500 is sleeved on the same eccentric assembly 300. Optionally, a plurality of test bodies 400 surround the motor 200, and a plurality of test bodies 400 surround the motor 200 to enable the overall structure to be compact, so that one motor 200 can drive a plurality of test bodies 400 to rotate back and forth.

According to the utility model, the motor 200 is adopted to drive the eccentric assembly 300 to rotate, and the swing rod 500 is sleeved on the eccentric assembly 300, so that the motor 200 drives the swing rod 500 to swing back and forth, a plurality of swing rods 500 can be sleeved on the same eccentric assembly 300, and one motor 200 can drive a plurality of swing rods 500 to swing, so that the number of the motors 200 is reduced, the structure of the conventional thromboelastogram instrument is optimized, the cost is saved, and the thrombelastogram instrument has a wide market prospect.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a thrombelastogram appearance test body drive module which characterized in that includes:

the equipment bottom plate is provided with a motor mounting plate;

2. The thromboelastography test body drive module of claim 1, wherein an opening is provided at one end of the elongated hole.

3. The thromboelastography test body drive module of claim 1, wherein the eccentric assembly comprises an eccentric wheel shaft and a rotating member fixedly mounted on the eccentric wheel shaft, the elongated hole is sleeved on the rotating member, the axis of the rotating member is spaced from the axis of the rotating shaft of the motor, and the motor rotates the rotating member in the elongated hole.

4. The thromboelastography test body drive module of claim 3, wherein the rotating member is a first bearing, the first bearing is mounted on the end face of the eccentric wheel shaft, the axis of the first bearing is spaced from the axis of the motor rotating shaft, and the elongated hole of the swing rod is sleeved on the first bearing.

5. The thromboelastography tester body drive module of claim 4, wherein the eccentric wheel shaft end face is provided with a mounting column, the first bearing is sleeved on the mounting column, and the circumferential surface of the mounting column at two sides of the first bearing is provided with a clamp spring for limiting the movement of the first bearing.

6. The thromboelastography test body drive module of claim 4, wherein the end of the first bearing is fixedly provided with an extension plate for preventing the elongated hole from being separated from the contact of the first bearing.

7. The thromboelastography test body drive module of claim 6, wherein the motor is mounted on the motor mounting plate downwards, the lower end of the first bearing is fixedly mounted with the extension plate, and the width of the extension plate is larger than that of the elongated hole.

8. The thromboelastography test body drive module of claim 1, wherein the eccentric assembly comprises an eccentric wheel shaft, the elongated hole is sleeved on the eccentric wheel shaft, and the motor rotates the eccentric wheel shaft in the elongated hole.

9. The thromboelastography tester body drive module of claim 1, wherein one end of the pendulum rod is provided with a fitting hole, and the fitting hole of the pendulum rod is in tight fit with the peripheral surface of the rotating part.

10. The thromboelastography test body drive module of any one of claims 1-9, wherein there are at least two test bodies, each test body is provided with a corresponding swing rod, and the elongated hole of each swing rod is sleeved on the same eccentric component.