CN215525816U - Movement device for signal acquisition and blood gas biochemical analyzer adopting movement device - Google Patents

Abstract

The utility model provides a signal acquisition movement device and a blood gas biochemical analyzer using the movement device, comprising: the testing device comprises an upper cover plate assembly, a signal acquisition assembly, a motor support assembly, a testing card mounting seat assembly, a return spring support and a bottom plate, wherein the testing card mounting seat assembly is connected with and arranged on the bottom plate; a motor bracket assembly is arranged above the test card mounting seat assembly; a signal acquisition assembly is arranged on one side above the motor support assembly; an upper cover plate assembly is arranged above the signal acquisition assembly; the motor bracket component is connected with the two ends of the signal acquisition component through a first side plate and a second side plate respectively. The signal acquisition contact scheme of the utility model ensures high test precision, reduces the requirement on the precision of mechanical parts and saves cost. The continuity and reliability of the execution action are ensured; the error rate of executing actions is reduced; the installation is facilitated, the control switch is timely and reliable, and the miniaturization is realized; the processing is convenient, and the cost is saved.

Description

Movement device for signal acquisition and blood gas biochemical analyzer adopting movement device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a signal acquisition movement device and a blood gas biochemical analyzer using the same.

Background

Signal acquisition exercise devices have been widely used in products such as blood gas biochemical analyzers. The scheme of contacting with the electrode of the test card mainly comprises two types, the first type is a spring plate type contact scheme, the scheme has high installation requirements, the hand feeling of plugging and unplugging is greatly different due to the inconsistent dimensional precision of parts, and the service life is short due to the sliding friction between the test card and the spring plate when the test card is used; the second type is a probe type contact scheme of vertical pressing, the requirement of the scheme on the dimensional accuracy of parts is high, the compression amount is too small, the contact cannot be achieved, the compression amount is too large, a probe can pierce an electrode, and the compression amount has no redundant design, so that the consistency of the compression amount cannot be ensured, and the detection accuracy is directly influenced.

Signal acquisition exercise devices have been widely used in products such as blood gas biochemical analyzers. At present, the mainstream motion scheme is that a stepping motor provides a power source to realize the connection of signals, push the standard solution and the sample to react and heat the standard solution sample (part of the machines have no heating function). The requirements of the scheme on the size precision, the installation mode and the hardware time sequence of parts are very strict, and the phenomenon of discontinuous action or overhead (the next action is not started after the last action is finished or the next action is started after the last action is not finished) can occur, so that the acquisition flow cannot be executed according to the schedule, the acquisition precision and efficiency are influenced, and the card waste rate is increased. Meanwhile, the complex linkage structure is inconvenient for the installation of the assembler.

Switch control on medical instruments is common, and with the increase of the supervision of medical instruments in China, the requirement on switch control on equipment is higher. At present, the switch control of the mainstream blood gas biochemical analyzer is still realized by an optical coupling switch, a magnetic switch and a microswitch. The phenomenon of untimely response exists in the optical coupling switch; magnetic switches are susceptible to interference; the microswitch has larger volume, is not beneficial to the use of a miniaturized machine and is easy to damage; the current mainstream switch has the problem of higher cost.

The prior art has at least the following disadvantages:

1. the elastic sheet type contact scheme of the moving device for signal acquisition and the electrode of the test card has higher installation requirement, the hand feeling of plugging and unplugging has larger difference due to the inconsistent dimensional precision of parts, and the service life is short due to the sliding friction between the test card and the elastic sheet when the test card is used;

2. the probe type contact scheme of the vertical downward pressing of the moving device for signal acquisition and the electrode of the test card has high requirements on the dimensional accuracy of parts, the over-small compression amount can cause no contact, the over-large compression amount can cause the probe to puncture the electrode, and the compression amount has no redundant design, so the consistency of the compression amount can not be ensured, and the detection accuracy is directly influenced;

3. the signal acquisition movement device adopts a stepping motor to provide a power source, three actions of switching on a signal, pushing a standard liquid and a sample to react and heating the standard liquid sample are realized, the requirements of the scheme on the size precision, the installation mode and the hardware time sequence of parts are very strict, and the phenomenon of discontinuous action or conflict action can occur, so that the acquisition flow cannot be executed according to the work, the acquisition precision and the efficiency are influenced, the waste card rate of a test card is increased, and meanwhile, the complex linkage structure is not convenient for installation of assembly personnel;

4. the switch control in the blood gas biochemical analyzer is still realized by an optical coupling switch, a magnetic switch or a microswitch, and the optical coupling switch has the phenomenon of untimely response; magnetic switches are susceptible to interference; the microswitch is large in size, is not beneficial to the use of a miniaturized machine, is easy to damage a control switch and has the problem of high cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides a signal acquisition motion device and a blood gas biochemical analyzer adopting the motion device, wherein the signal acquisition contact of the motion device adopts a rotary pressing mode, 3 power sources are arranged in a motor bracket component and are respectively used for completing the connection of signals, pushing a marking liquid to react with a sample and heating the marking liquid and the test sample, and a probe in contact with a test card electrode has a multi-claw-shaped head part and is used for dispersing pressure; the blade in the switch is divided into an upper blade and a lower blade, and the upper blade and the lower blade are touched together, so that the judgment is successful. The signal acquisition contact scheme of the utility model ensures high test precision, reduces the requirement on the precision of mechanical parts and saves cost. The continuity and reliability of the execution action are ensured; the error rate of executing actions is reduced; the installation is facilitated, the control switch is timely and reliable, and the miniaturization is realized; the processing is convenient, and the cost is saved.

The utility model provides a signal acquisition movement device, which comprises: the device comprises an upper cover plate assembly, a signal acquisition assembly, a motor bracket assembly, a test card mounting seat assembly, a return spring bracket and a bottom plate;

the test card mounting seat assembly is connected with the bottom plate and arranged on the bottom plate;

a motor support assembly is arranged above the test card mounting seat assembly and connected with the test card mounting seat assembly;

a signal acquisition assembly is arranged on one side above the motor support assembly, and one side of the signal acquisition assembly, which is close to the motor support assembly, is positioned above one side of the motor support assembly, which is close to the signal acquisition assembly;

an upper cover plate assembly is arranged above the signal acquisition assembly and is connected with the signal acquisition assembly;

the motor bracket assembly is connected with two ends of the signal acquisition assembly through a first side plate and a second side plate respectively;

the upper cover plate assembly comprises a rotary stepping motor, and the motor support assembly comprises an air bag motor and a liquid bag motor;

and a reset spring support is arranged between the bottom plate and the signal acquisition assembly and is connected with the signal acquisition assembly.

Preferably, the upper cover plate assembly further comprises a mounting frame, a coupler, a first gear shaft, a cam, a first gear and a second gear, the upper cover plate assembly is connected with the test card mounting seat assembly and the signal acquisition assembly, and the diameter of the first gear is smaller than that of the second gear.

Preferably, the first gear and the second gear have a diameter ratio of 1: 3.

Preferably, the signal acquisition assembly is welded with a probe, the signal acquisition assembly further comprises a signal board PCBA, and the head of the probe is in a multi-claw shape.

Preferably, the test card mount pad subassembly is connected with rotatory step motor electricity, rotatory step motor fixes on the mounting bracket, rotatory step motor on be fixed with the shaft coupling, be fixed with first gear shaft and camshaft on the shaft coupling, be fixed with first gear on the first gear shaft, first gear and second gear meshing, the second gear is fixed on the camshaft, still is fixed with the cam on the camshaft, the cam with the signal acquisition subassembly is connected, sets up the probe on signal board PCBA.

Preferably, the signal acquisition contact is rotationally pressed in a manner that:

when the moving device acts, the rotating stepping motor on the upper cover plate assembly starts to rotate clockwise, and the first gear shaft is driven to rotate through the coupler; the first gear is fixedly connected to the first gear shaft, so that the first gear rotates synchronously with the first gear shaft; in the same way, the second gear is meshed with the first gear and also synchronously rotates; the second gear is fixedly connected with the cam shaft, so that the cam shaft synchronously rotates; the cam fixed on the camshaft rotates along with the cam. The rotation of the cam enables the bearing tangent to the cam to rotate around the axis of the camshaft; when the bearing rotates, the downward pressure of the cam is transmitted, so that the signal acquisition assembly rotates around the axes of the rotating shafts at the two sides; the rotation of the signal acquisition assembly causes the probes welded on the signal acquisition assembly to contact with the test card, and the probes are continuously compressed, so that the connection of signals is ensured.

Preferably, the signal acquisition subassembly still includes shrouding, space post, probe support, mount and bumps the needle, and the probe support is connected with signal board PCBA, and signal board PCBA is connected with the mount, and the shrouding with bump the needle and all be connected with the mount.

Preferably, the probe is placed carry out spacing restraint on the probe support, the probe support assembly is in on the signal board PCBA, the probe welding is in on the signal board PCBA, the signal board PCBA is used the spacer is installed on the mount, the shrouding is fixed on the mount, bump the needle and fix on the mount.

Preferably, the motor bracket component further comprises a liquid bag blade switch, an air bag blade switch, a bracket, a liquid bag pressure head and an air bag pressure head, wherein the liquid bag blade switch is fixed on the bracket, the air bag blade switch is fixed on the bracket, the liquid bag pressure head is fixed on the liquid bag motor, the liquid bag motor is fixed on the bracket, the air bag pressure head is fixed on the air bag motor, and the air bag motor is fixed on the bracket.

Preferably, the test card mounting seat assembly comprises a base, a ball plug, a pressure spring, a baffle and a card-inserting in-place tact switch, wherein the ball plug is plugged into a hole of the base, the pressure spring presses the ball plug, and the baffle is fixed on the base; the card-inserting in-place tact switch is fixed on the base.

The utility model provides a blood gas biochemical analyzer, which adopts the signal acquisition movement device.

Preferably, the blood gas biochemical analyzer further comprises a blade switch assembly, the blade switch assembly comprises a lower bottom plate, a partition plate, blades and an upper cover plate, the blades are arranged on the lower bottom plate, the upper cover plate is arranged above the blades, the blades are two, and the partition plate is arranged between the two blades.

Compared with the prior art, the utility model has the following beneficial effects:

(1) the contact mode of the moving device for signal acquisition and the probe adopts a rotary pressing mode, the contact with the electrode surface of the test card is ensured by compressing the probe, and the contact is a top-down compression joint type contact, so that the detection precision is improved, the service life is prolonged, the requirement on the precision of mechanical parts is reduced, the machinability of the parts is ensured, the interchangeability of the parts is improved, and the cost can be saved;

(2) the contact mode of the signal acquisition movement device and the probe adopts a mode that the cam pushes the signal acquisition assembly, the cam surface is designed into a required curved surface, the compression amount of the probe can be kept unchanged and has a certain range of redundancy even if the power source continues to operate after the probe is pushed to a rated stroke, so that the consistency of signal acquisition contact is ensured, and the test precision can be ensured;

(3) the movement device for signal acquisition is provided with mutually independent power sources for three actions respectively, so that the respective actions are completed in sequence, interference and disorder cannot be generated between the actions, and accurate time sequence is not needed; the accuracy and the reliability of the execution action are ensured; the error rate of executing actions is reduced; meanwhile, no complex linkage part is arranged among the motion mechanisms, so that assembly personnel can conveniently install parts;

(4) the control switch of the blood gas biochemical analyzer adopts a touch blade type switch, only has high and low potentials, and cannot be interfered by other high and low frequency signals, so that the stability is ensured; the blade divide into 2 upper and lower pieces, and the back is together touched to upper and lower blade, judges promptly successfully, and very little that the size specification of blade can be done, so the structure can be designed very little, even in narrow and small space, also suitable installation.

Drawings

Fig. 1 is a perspective view of one embodiment of a signal-acquiring exercise apparatus of the present invention.

Fig. 2 is a longitudinal sectional view of one embodiment of the signal-collecting moving device of the present invention.

Fig. 3 is a perspective view of an upper cover plate assembly of one embodiment of the signal acquisition movement apparatus of the present invention.

Fig. 4 is a perspective view of a signal acquisition assembly of one embodiment of the signal acquisition exercise device of the present invention.

Fig. 5 is a perspective view of a motor bracket assembly of an embodiment of the signal-collecting exercise apparatus of the present invention.

FIG. 6 is a perspective view of a test card mount assembly of one embodiment of the signal acquisition exercise device of the present invention.

Fig. 7 is a longitudinal sectional view of one embodiment of the signal acquisition motion device of the present invention with the probe in the initial position.

Fig. 8 is a longitudinal sectional view of one embodiment of the signal acquisition movement apparatus of the present invention, showing the probe lowered 2.1cm from the initial position, with the cam rotated 50 degrees from the position of fig. 7.

Fig. 9 is a longitudinal cross-sectional view of one embodiment of the signal acquisition motion device of the present invention, showing the cam rotated 176 degrees from the position of fig. 7, with the amount of probe compression remaining unchanged from fig. 8.

Fig. 10 is a longitudinal cross-sectional view of one embodiment of the signal acquisition motion device of the present invention, showing the cam rotated 142 degrees from the fig. 7 position and the probe height decreased to a maximum of 5.6 cm.

FIG. 11 is a probe size diagram of one embodiment of a signal acquisition motion device of the present invention;

FIG. 12 is a front view of the probe head of one embodiment of the signal acquisition movement apparatus of the present invention;

FIG. 13 is a perspective view of a paddle switch assembly of one embodiment of the blood gas biochemical analyzer of the present invention;

FIG. 14 is a schematic view of an air bag motor of an embodiment of the signal acquisition motion device of the present invention prior to vertical depression;

FIG. 15 is a schematic view of an air bag motor of an embodiment of the signal acquisition motion device of the present invention after being pressed vertically downward;

FIG. 16 is a schematic view of a ladle motor of an embodiment of a signal acquisition motion device of the present invention prior to vertical depression;

FIG. 17 is a schematic view of a vertically depressed ladle motor of an embodiment of the signal acquisition motion device of the present invention;

in the figure, 1-bottom plate, 2-test card mounting seat assembly, 3-motor bracket assembly, 4-first side plate, 5-signal acquisition assembly, 6-upper cover plate assembly, 7-second side plate, 8-reset spring support and 9-switch blade assembly; 21-base, 22-ball head plug, 23-pressure spring, 24-baffle, 25-M3-5 cross-slot pan head screw, 26-M1.6-4 cross-slot pan head screw, 27-card-insertion-in-place light touch switch, 31-liquid-bag blade switch, 32-air bag blade switch, 33-bracket, 34-liquid-bag pressure head, 35-air bag pressure head, 36-air bag motor, 37-liquid-bag motor, 51-closing plate, 52-M3-5 cross-slot pan head screw, 53-spacing column, 54-probe, 541-head, 542-middle part, 543-tail part, 544-process hole, 545-boss, 55-probe bracket, 56-signal plate PCBA, 57-fixing frame, 58-touch needle, 59-M2.5-4 cross-slot pan head screw, 543-process hole, 545-boss, 55-probe bracket, 56-signal plate PCBA, 57-fixing frame, 58-touch needle, 59-M2.5 cross-slot pan head screw, 61-rotary stepping motor, 62-coupler, 63-first gear shaft, 64-first gear, 65-second gear, 66-cam shaft, 67-cam, 68-mounting frame, 91-lower bottom plate, 92-spacing plate, 93-blade and 94-upper cover plate.

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings.

The utility model provides a signal acquisition movement device, which comprises: the testing device comprises an upper cover plate assembly 6, a signal acquisition assembly 5, a motor bracket assembly 3, a test card mounting seat assembly 2, a return spring bracket 8 and a bottom plate 1;

the test card mounting seat assembly 2 is connected with the bottom plate 1 and arranged on the bottom plate 1;

a motor bracket assembly 3 is arranged above the test card mounting seat assembly 2, and the motor bracket assembly 3 is connected with the test card mounting seat assembly 2;

a signal acquisition assembly 5 is arranged on one side above the motor support assembly 3, and one side, close to the motor support assembly 3, of the signal acquisition assembly 5 is positioned above one side, close to the signal acquisition assembly 5, of the motor support assembly 3;

an upper cover plate assembly 6 is arranged above the signal acquisition assembly 5, and the upper cover plate assembly 6 is connected with the signal acquisition assembly 5;

the two ends of the motor bracket assembly 3 and the two ends of the signal acquisition assembly 5 are respectively connected through a first side plate 4 and a second side plate 7;

the upper cover plate component 6 comprises a rotary stepping motor 61, and the motor bracket component 3 comprises an air bag motor 36 and a liquid bag motor 37;

after receiving the command, the actions of rotating the pressing signal plate, pressing the liquid bag and pressing the air bag are sequentially and independently completed by respective motors, so that the interference and disorder between the actions are avoided, and a time sequence with complicated hardware design is not required; meanwhile, 3 independent mechanisms are fastened on the bracket by screws, and complex tools and special procedures are not needed for installation, so that the large-scale production is facilitated.

And a return spring support 8 is arranged between the bottom plate 1 and the signal acquisition assembly 5, and the return spring support 8 is connected with the signal acquisition assembly 5.

According to a specific embodiment of the present invention, the upper cover plate assembly 6 further includes a mounting bracket 68, a coupling 62, a first gear shaft 63, a cam shaft 66, a cam 67, a first gear 64 and a second gear 65, the upper cover plate assembly 6 is connected to the test card mounting base assembly 2 and the signal collecting assembly 5, and the diameter of the first gear 64 is smaller than that of the second gear 65.

According to one embodiment of the present invention, the first gear 64 and the second gear 65 have a diameter ratio of 1: 3.

According to a specific embodiment of the present invention, the probe 54 is welded on the signal acquisition assembly 5, the signal acquisition assembly 5 further comprises a signal board PCBA 56, and the head of the probe 54 is in a multi-claw shape.

According to a specific embodiment of the present invention, the test card mounting assembly 2 is electrically connected to a rotary stepping motor 61, the rotary stepping motor 61 is fixed on a mounting frame 68, a coupling 62 is fixed on the rotary stepping motor 61, a first gear shaft 63 and a cam shaft 66 are fixed on the coupling 62, a first gear 64 is fixed on the first gear shaft 63, the first gear 64 is engaged with a second gear 65, the second gear 65 is fixed on the cam shaft 66, a cam 67 is fixed on the cam shaft 66, the cam 67 is connected with the signal acquisition assembly 5, and a probe 54 is arranged on the signal board PCBA 56.

According to a particular embodiment of the utility model, the signal acquisition contact is rotationally depressed in a manner that is in particular:

when the moving device acts, the rotating stepping motor 61 on the upper cover plate assembly 6 starts to rotate clockwise, and the first gear shaft 63 is driven to rotate through the coupler 62; the first gear 64 is fixedly connected to the first gear shaft 63, so that the first gear 64 rotates synchronously with the first gear shaft 63; since the second gear 65 is meshed with the first gear 64, the second gear 65 also rotates synchronously; the second gear 65 is fixedly connected with the cam shaft 66, so that the cam shaft 66 also synchronously rotates; the cam 67 attached to the cam shaft 66 also rotates at this time. The rotation of the cam 67 causes the bearing tangent thereto to rotate around the axis of the camshaft 66; when the bearing rotates, the downward pressure of the cam 67 is transmitted, so that the signal acquisition assembly 5 rotates around the axes of the rotating shafts on the two sides; rotation of the signal acquisition assembly 5 causes the probes 54 soldered thereto to contact the test card and constantly compresses the probes 54, thereby ensuring signal integrity.

According to a particular embodiment of the utility model, the cam surface is a smooth curved surface formed by three sections of tangent arcs. When the cam rotates clockwise at the beginning of detection, the change of the center distance between the cam and the bearing is changed from small to large and then kept unchanged, so that the change of the compression amount of the elastic needle is ensured to be gradually increased from zero to a rated stroke, and then the rated stroke is kept unchanged within a certain range. Therefore, even if the sizes of the parts are inconsistent, the consistency of the compression amount of the elastic needle can be ensured due to the redundancy of the cam mechanism, and the consistency of signal acquisition contact is ensured on the physical level.

After the detection is finished, the cam rotates anticlockwise, the change of the center distance of the cam and the bearing is kept unchanged, the change is reduced, and finally the change is kept unchanged, so that the bearing is ensured to be in tangent contact with the cam in a certain range, and the resetting consistency of the signal plate assembly is ensured.

According to an embodiment of the present invention, the signal collecting assembly 5 further includes a sealing plate 51, a spacing post 53, a probe holder 55, a fixing frame 57 and a touch pin 58, wherein the probe holder 55 is connected to a signal board PCBA 56, the signal board PCBA 56 is connected to the fixing frame 57, and both the sealing plate 51 and the touch pin 58 are connected to the fixing frame 57.

According to one embodiment of the utility model, the spacer 53 is a carbon steel spacer.

According to an embodiment of the present invention, the probes 54 are placed on the probe holders 55 for limiting, the probe holders 55 are assembled on the signal board PCBA 56, the probes 54 are welded on the signal board PCBA 56, the signal board PCBA 56 is mounted on the fixing frame 57 by the spacing posts 53, the closing plate 51 is fixed on the fixing frame 57, and the touch pins 58 are fixed on the fixing frame 57.

According to an embodiment of the utility model, the closing plate 51 is fixed to the holder 57 by means of M3 x 5 cross recessed pan head screws 52, and the catch pins 58 are fixed to the holder 57 by means of M2.5 x 4 cross recessed pan head screws 59.

According to a specific embodiment of the present invention, the motor bracket assembly 3 further includes a liquid bag vane switch 31, an air bag vane switch 32, a bracket 33, a liquid bag pressure head 34 and an air bag pressure head 35, wherein the liquid bag vane switch 31 is fixed on the bracket 33, the air bag vane switch 32 is fixed on the bracket 33, the liquid bag pressure head 34 is fixed on the liquid bag motor 37, the liquid bag motor 37 is fixed on the bracket 33, the air bag pressure head 35 is fixed on the air bag motor 36, and the air bag motor 36 is fixed on the bracket 33.

According to a specific embodiment of the present invention, the test card mounting base assembly 2 comprises a base 21, a ball plug 22, a compression spring 23, a baffle 24 and a card-in-place tact switch 27, wherein the ball plug 22 is plugged into a hole of the base 21, the compression spring 23 presses the ball plug 22, and the baffle 24 is fixed on the base 21; the card-in-place tact switch 27 is fixed on the base 21.

According to a particular embodiment of the utility model, the baffle 24 is fixed to the base 21 by means of M3 x 5 cross recessed pan head screws 25; the card-in-place tact switch 27 is fixed on the base 21 by using M1.6 x 4 cross recessed pan head screws 26.

The utility model provides a blood gas biochemical analyzer, which adopts the signal acquisition movement device.

According to a specific embodiment of the present invention, the blood gas biochemical analyzer further comprises a vane switch assembly 9, the vane switch assembly 9 comprises a lower bottom plate 91, a partition plate 92, a vane 93 and an upper cover plate 94, the vane 93 is disposed on the lower bottom plate 91, the upper cover plate 94 is disposed above the vane 93, the vane 93 is two pieces, and the partition plate 92 is disposed between the two pieces of vane 93.

According to one embodiment of the present invention, the lower base plate 91, the partition plate 92 and the upper cover plate 94 are injection molded, and the blade 93 is die stamped.

The blade switch has a simple structure, and the cost of the blade switch can be one tenth of that of other switches; when the executive component is reset, the blade below the executive component is driven to generate deflection change and is contacted with the blade above the executive component to complete conduction and judge that the reset is successful, the whole process can not generate a contact or non-contact state, and simultaneously, the executive component only has high and low-level signals and can not be interfered by other high and low-level signals, so that the stability is undoubted; because of its small size, it can be installed in a small space.

According to a specific embodiment of the present invention, the probe 54 is a cylinder, and comprises a head portion 541, a middle portion 542 and a tail portion 543, wherein the outer diameter of the head portion 541 is 0.97-1.03cm, the length of the head portion 541 is 2.9-3.1cm, the top end of the head portion 541 is nine-claw shaped, and the extension lines of the end portions of two adjacent claws form an angle of 60 degrees; the middle part 542 is 5.9-6.1cm long, the outer diameter of the middle part 542 is 1.47-1.53cm, a process hole 544 with the diameter of 0.8cm is arranged on the side wall of the middle part 542 close to the tail part 543, a boss 545 is arranged at the bottom of the middle part 542, the height of the boss 545 is 0.4cm, the outer diameter of the boss 545 is 1.77-1.83cm, the length of the tail part 543 is 1.7-1.9cm, and the outer diameter of the tail part 543 is 0.67-0.73 cm.

According to one embodiment of the utility model, the head 541 of the probe 54 is nine-claw shaped with 5 high and 4 low. Firstly, under the condition of certain pressure, the pressure can be shared by multiple points, so that the phenomenon of puncturing the electrode due to the concentration of force is avoided; moreover, the fluctuant claw shape can deal with the uneven electrode surface, no virtual contact is generated, and the contact reliability is ensured.

The working principle is as follows:

when the moving device acts, the rotating stepping motor on the upper cover plate assembly starts to rotate clockwise, and the first gear shaft is driven to rotate through the coupler; the first gear is fixedly connected to the first gear shaft, so that the first gear rotates synchronously with the first gear shaft; in the same way, the second gear is meshed with the first gear and also synchronously rotates; the second gear is fixedly connected with the cam shaft, so that the cam shaft synchronously rotates; the cam fixed on the camshaft rotates along with the cam. The rotation of the cam enables the bearing tangent to the cam to rotate around the axis of the camshaft; when the bearing rotates, the downward pressure of the cam is transmitted, so that the signal acquisition assembly rotates around the axes of the rotating shafts at the two sides; the rotation of the signal acquisition assembly promotes the probes welded on the signal acquisition assembly to contact with the test card and continuously compress the probes, so that the connection of signals is ensured, and the effect of acquiring the signals is achieved.

The liquid bag motor is provided with a liquid bag pressure head, the liquid bag motor drives the liquid bag pressure head on the liquid bag motor to move downwards when working, and the liquid bag is continuously extruded in the process of the downward movement of the liquid bag pressure head, so that the standard liquid in the liquid bag flows out, and the calibration effect is completed.

The air bag motor is provided with an air bag pressure head, the air bag motor drives the air bag pressure head to move downwards when working, the air bag is continuously extruded by the air bag pressure head in the downward movement process, so that gas in the air bag pushes a sample to flow into a reaction area, and meanwhile, standard liquid is pushed away, and the sample fixing effect is completed.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. A signal-acquiring exercise device, comprising: the device comprises an upper cover plate assembly, a signal acquisition assembly, a motor bracket assembly, a test card mounting seat assembly, a return spring bracket and a bottom plate;

the test card mounting seat assembly is connected with the bottom plate and arranged on the bottom plate;

a motor support assembly is arranged above the test card mounting seat assembly and connected with the test card mounting seat assembly;

a signal acquisition assembly is arranged on one side above the motor support assembly, and one side of the signal acquisition assembly, which is close to the motor support assembly, is positioned above one side of the motor support assembly, which is close to the signal acquisition assembly;

an upper cover plate assembly is arranged above the signal acquisition assembly and is connected with the signal acquisition assembly;

the motor bracket assembly is connected with two ends of the signal acquisition assembly through a first side plate and a second side plate respectively;

the upper cover plate assembly comprises a rotary stepping motor, and the motor support assembly comprises an air bag motor and a liquid bag motor;

and a reset spring support is arranged between the bottom plate and the signal acquisition assembly and is connected with the signal acquisition assembly.

2. The signal-collecting exercise apparatus of claim 1, wherein the upper cover assembly further comprises a mounting bracket, a coupling, a first gear shaft, a cam, a first gear, and a second gear, the upper cover assembly is connected to the test card mounting assembly and the signal-collecting assembly, and a diameter of the first gear is smaller than a diameter of the second gear.

3. The signal-collecting exercise apparatus of claim 2, wherein the probes are soldered to the signal-collecting assembly, the signal-collecting assembly further comprising a signal board PCBA, and the probe heads are multi-claw shaped.

4. The signal acquisition movement device according to claim 3, wherein the test card mounting seat assembly is electrically connected to a rotary stepping motor, the rotary stepping motor is fixed to the mounting frame, a coupler is fixed to the rotary stepping motor, a first gear shaft and a cam shaft are fixed to the coupler, a first gear is fixed to the first gear shaft, the first gear is meshed with a second gear, the second gear is fixed to the cam shaft, a cam is fixed to the cam shaft, the cam is connected to the signal acquisition assembly, and a probe is arranged on the signal board PCBA.

5. The signal acquisition movement device according to claim 4, wherein the signal acquisition assembly further comprises a sealing plate, a spacing column, a probe support, a fixing frame and a touch pin, the probe support is connected with the signal board PCBA, the signal board PCBA is connected with the fixing frame, and the sealing plate and the touch pin are both connected with the fixing frame.

6. The signal acquisition exercise device of claim 5, wherein the probe is placed on the probe holder for limiting and constraining, the probe holder is assembled on the signal board PCBA, the probe is welded on the signal board PCBA, the signal board PCBA is mounted on the fixing frame by the spacing column, the sealing plate is fixed on the fixing frame, and the collision pin is fixed on the fixing frame.

7. The signal-acquiring exercise apparatus according to claim 1, wherein the motor support assembly further comprises a liquid bag vane switch, an air bag vane switch, a support, a liquid bag ram, and an air bag ram, the liquid bag vane switch is fixed to the support, the air bag vane switch is fixed to the support, the liquid bag ram is fixed to the liquid bag motor, the liquid bag motor is fixed to the support, the air bag ram is fixed to the air bag motor, and the air bag motor is fixed to the support.

8. The signal acquisition movement device according to claim 1, wherein the test card mounting seat assembly comprises a base, a ball plug, a pressure spring, a baffle and a card-in-place tact switch, the ball plug is plugged into the hole of the base, the pressure spring presses the ball plug, and the baffle is fixed on the base; the card-inserting in-place tact switch is fixed on the base.

9. A biochemical analyzer for blood gas, characterized in that the signal-collecting movement device of claim 1 is used.

10. The biochemical blood gas analyzer according to claim 9, further comprising a leaf switch assembly, wherein the leaf switch assembly comprises a lower base plate, a partition plate, two leaves and an upper cover plate, the leaves are arranged on the lower base plate, the upper cover plate is arranged above the leaves, the number of the leaves is two, and the partition plate is arranged between the two leaves.

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