CN216917743U - Receiving mechanism of pneumatic conveying device for vacuum blood collection tubes - Google Patents

Abstract

A receiving mechanism of a pneumatic conveying device for vacuum blood collection tubes comprises a transmission pipeline and an elastic buffer unit, wherein the inner diameter of the transmission pipeline is larger than the maximum outer diameter of the vacuum blood collection tubes, and the transmission pipeline horizontally penetrates through a ceiling and then is bent to be downwards connected into the elastic buffer unit; the elastic buffer unit comprises an external frame, a power transmission module, buffer rotating wheels and a notch pipeline, wherein the power transmission module is arranged on the external frame, the power transmission module is connected with the two buffer rotating wheels and controls the two buffer rotating wheels to rotate synchronously in opposite directions, the notch pipeline penetrates through a gap between the two buffer rotating wheels, the notch pipeline is fixed on the external frame, and two ends of the notch pipeline are communicated with the transmission pipeline. The utility model provides a receiving mechanism of a pneumatic conveying device for vacuum blood collection tubes, which has good buffering performance and high safety.

Description

Receiving mechanism of pneumatic conveying device for vacuum blood collection tubes

Technical Field

The utility model relates to the technical field of pneumatic transportation of cylindrical objects, in particular to a receiving mechanism of a pneumatic transportation device for vacuum blood collection tubes.

Background

After the blood of a patient is collected, the vacuum blood collection tube needs to be transported to an inspection area from a blood collection area, and various instruments are used for completing inspection work of different projects. Due to the limitation of factors such as fields, the situation that the distance between a blood sampling area and an inspection area is often far occurs, and the transportation work of the vacuum blood sampling tube needs to be completed by adopting a pneumatic transmission mode. The blood sampling tube speed is very fast when current pneumatic transmission mode transmission vacuum blood sampling tube, causes the intraductal blood specimen of vacuum blood sampling to appear hemolysis or pipeline card pause easily when reacing the receiving terminal, causes the vacuum blood sampling tube damage even, the blood specimen loses, need extract the blood specimen once more, causes the patient to seek medical advice very big inconvenience, has reduced medical personnel work efficiency. Therefore, a safety buffering receiving device suitable for a high-speed pneumatic conveying device is needed, the vacuum blood collection tube transmission buffering receiving task is completed, the blood sample failure risk is reduced, repeated blood collection of a patient is prevented, and the working efficiency of medical staff is improved.

Disclosure of Invention

In order to overcome the defects that the receiving mechanism of the existing pneumatic vacuum blood collection tube conveying device is poor in buffering performance, low in safety and easy to cause blood sample failure during high-speed conveying, the utility model provides the receiving mechanism of the pneumatic vacuum blood collection tube conveying device, which is good in buffering performance and high in safety.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a receiving mechanism of a pneumatic conveying device for vacuum blood collection tubes comprises a transmission pipeline and an elastic buffer unit, wherein the inner diameter of the transmission pipeline is larger than the maximum outer diameter of the vacuum blood collection tubes, and the transmission pipeline horizontally penetrates through a ceiling and then is bent to be downwards connected into the elastic buffer unit; the elastic buffer unit comprises an external frame, a power transmission module, buffer rotating wheels and a notch pipeline, wherein the power transmission module is arranged on the external frame, the power transmission module is connected with the two buffer rotating wheels and controls the two buffer rotating wheels to rotate synchronously in opposite directions, the notch pipeline penetrates through a gap between the two buffer rotating wheels, the notch pipeline is fixed on the external frame, and two ends of the notch pipeline are communicated with the transmission pipeline.

Further, receiving mechanism is still including installing the negative pressure speed reduction unit in the ceiling top, negative pressure speed reduction unit includes fan, tuber pipe and sealed tee bend module, the fan inlet scoop link to each other with the tuber pipe, the tuber pipe with sealed tee bend module props up the gas port and is connected, the both ends of the side air-out pipeline of sealed tee bend module all communicate with transmission pipeline, the pipe surface of side air-out pipeline is opened there is the air-out round hole.

Still further, the power transmission module comprises a buffer mounting plate, a buffer motor seat, a buffer motor and a buffer bearing seat, wherein the buffer motor seat and the buffer bearing seat are mounted on the buffer mounting plate, the buffer motor seat is provided with the buffer motor, a motor shaft of the buffer motor is provided with a first bevel gear which is meshed with a second bevel gear through the first bevel gear, the second bevel gear is mounted on a first buffer shaft, two ends of the first buffer shaft are connected with buffer bearings which are mounted on the buffer bearing seat, a buffer rotating wheel is fixedly mounted on the first buffer shaft, the first buffer shaft penetrates through a first duplex circular belt wheel, the first duplex circular belt wheel is in transmission connection with a second duplex circular belt wheel on the other side through an 8-shaped third circular belt, the second duplex circular belt wheel is mounted on a second buffer shaft, and two ends of the second buffer shaft are connected with the buffer bearings, and the second buffer shaft is provided with another buffer rotating wheel.

In the elastic buffer unit, the number of the buffer rotating wheels is 2N, N is a positive integer greater than 1, the two buffer rotating wheels are in a group, and each group is arranged on two sides of the notch pipeline from top to bottom.

When N gets 2, first pair of circular band wheel makes its above first circular band wheel with the syntropy rotation of same angular velocity through first circular band, second pair of circular band wheel passes through the second circular band wheel that the second circular band drove the top, and first circular band wheel, first circular band wheel are passed respectively to third buffering axle, fourth buffering axle, a buffering runner in the top is installed to the third buffering epaxial, another buffering runner in the top is installed to the fourth buffering epaxial.

Preferably, the outer lane of buffering runner is equipped with the brush, in the trompil of notch pipeline was stretched into to the brush, the interval between the brush outer end of two adjacent buffering runners was less than the minimum pipe diameter of vacuum test tube, the interval between the brush root is greater than the external diameter of notch pipeline. This is a preferred fit and can be set as desired.

Furthermore, among the negative pressure speed reduction unit, the fan is installed in pneumatic conveyer accepting point ceiling top furred ceiling position, the suction opening of fan adopts the clamp to be connected with the tuber pipe, and the tuber pipe is equipped with the blast gate, the tuber pipe is terminal with clamp connection to sealed tee bend module.

The sealing tee joint module comprises a tee joint pipe and a side air outlet pipeline, the tee joint pipe comprises a branch pipe, a left inlet and a right outlet, the left inlet and the right outlet are provided with side sealing end covers and are in sealing connection through rubber gaskets, the outer sides of the end covers are provided with end cover joints, the side air outlet pipeline is arranged in the tee joint pipe, and two ends of the side air outlet pipeline are connected with a transmission pipeline through the end cover joints.

Preferably, at least 3 air outlet circular holes are formed in the pipe surface of the side air outlet pipeline.

Preferably, the inlet transmission pipeline is provided with a detection ring, and a receiving sensor is arranged on the detection ring and used for detecting arrival information of the vacuum blood collection tube.

The utility model has the following beneficial effects: the vacuum blood collection tube of high-speed motion slows down to a certain extent in rear end negative pressure pipeline behind the negative pressure buffer unit, absorbs behind the surplus impulse by the elastic buffer unit again and discharges with constant speed, accomplishes the buffering and receives the task, and whole process does not need artificial intervention, has improved pneumatic conveyer greatly and has received the security, has avoided the loss of blood sample, has prevented the repeated work of taking a blood sample, has improved medical personnel work efficiency, has reduced the patient time of seeking medical advice.

Drawings

FIG. 1 is a schematic view of the assembly of the receiving mechanism of the pneumatic transport device for vacuum blood collection tubes;

FIG. 2 is a schematic view of a three-way sealing module;

FIG. 3 is an external view of the elastic buffer unit;

FIG. 4 is a schematic diagram of the operation of the elastic buffer unit;

FIG. 5 is an internal schematic view of the spring-damper unit;

wherein 101, the fan; 102 an air valve; 103 air pipes; 104 sealing the three-way module; 105 a conveying pipeline; 106 elastic buffer units; 107 sealing the three-way pipe; 108 side seal end caps; 109 an end cap connector; a 110 side air outlet pipeline; 111 receiving a sensor; 112, detecting a ring; 113 a buffer mounting plate; 114 cushioning the bearing seat; 116 a cushion bearing; 117 slot conduits; 118 a buffer motor; 119 buffer motor base; 120 a first bevel gear; 121 a second bevel gear; 126 third circular band; 130 vacuum blood collection tubes; 131, a hoop; 140 a sealing cap; 141 a first seal cover mounting plate; 142. a second seal boot mounting plate; 143 a first pipe joint; 144 a second pipe joint; 151 a first buffer shaft; 152 a second buffer shaft; 153 third buffer shaft; 154 a fourth buffer shaft; 221 a first buffer brush; 222 a second buffer brush; 223 a third buffer brush; 224 a fourth buffer brush; 231 a first circular pulley; 232 a second circular belt wheel; 241 a first circular band; 242 a second circular band; 251 a first duplex circular band; 252 a second duplex circular band; 170 notches; 1051 the turn radius; 1101 air outlet circular hole.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Referring to fig. 1 to 5, a receiving mechanism of a pneumatic conveying device for vacuum blood collection tubes comprises a transmission pipeline 105 and an elastic buffer unit 106, wherein the inner diameter of the transmission pipeline 105 is larger than the maximum outer diameter of the vacuum blood collection tube 130, and the transmission pipeline 105 horizontally penetrates through a ceiling and then is bent to be downwards connected to the elastic buffer unit 106; the elastic buffer unit 106 comprises an external frame, a power transmission module, buffer rotating wheels and a notch pipeline 117, wherein the power transmission module is arranged on the external frame, the power transmission module is connected with two sets of buffer rotating wheels and controls the two sets of buffer rotating wheels to rotate synchronously in opposite directions, the notch pipeline 117 penetrates through a gap between the two buffer rotating wheels, the notch pipeline 117 is fixed on the external frame, and two ends of the notch pipeline 117 are communicated with the transmission pipeline 105.

The receiving mechanism further comprises a negative pressure speed reducing unit installed above a ceiling, the negative pressure speed reducing unit comprises a fan 101, an air pipe 103 and a sealed tee joint module 104, an air suction opening of the fan is connected with the air pipe 103, the air pipe 103 is connected with an air port of the sealed tee joint module 104, two ends of a side air outlet pipeline 110 of the sealed tee joint module 104 are communicated with a transmission pipeline 105, and an air outlet circular hole 1101 is formed in the pipe surface of the side air outlet pipeline 110.

Still further, the power transmission module comprises a buffer mounting plate, a buffer motor seat, a buffer motor and a buffer bearing seat, the buffer motor seat and the buffer bearing seat are mounted on the buffer mounting plate, the buffer motor seat is provided with the buffer motor, a motor shaft of the buffer motor is provided with a first bevel gear which is meshed with a second bevel gear through the first bevel gear, the second bevel gear is mounted on a first buffer shaft, two ends of the first buffer shaft are connected with buffer bearings which are mounted on the buffer bearing seat, a buffer rotating wheel is fixedly mounted on the first buffer shaft, the first buffer shaft penetrates through a first duplex circular belt pulley, the first duplex circular belt pulley is in transmission connection with a second duplex circular belt pulley at the other side through an 8-shaped third circular belt, the second duplex circular belt pulley is mounted on a second buffer shaft, two ends of the second buffer shaft are connected with the buffer bearings, and the second buffer shaft is provided with another buffer rotating wheel.

In the elastic buffer unit, the number of the buffer rotating wheels is 2N, N is a positive integer larger than 1, the two buffer rotating wheels are in a group, and each group is arranged on two sides of the notch pipeline from top to bottom.

When N is 2, the first duplex circular belt wheel enables the first circular belt wheel above the first duplex circular belt wheel to rotate in the same direction at the same angular speed through the first circular belt, the second duplex circular belt wheel drives the second circular belt wheel above the second duplex circular belt wheel through the second circular belt, the third buffer shaft and the fourth buffer shaft respectively penetrate through the first circular belt wheel and the first circular belt wheel, the third buffer shaft is provided with one buffer rotating wheel above the third buffer shaft, and the fourth buffer shaft is provided with the other buffer rotating wheel above the fourth buffer shaft.

Preferably, the outer lane of buffering runner is equipped with the brush, in the trompil of notch pipeline was stretched into to the brush, the interval between the brush outer end of two adjacent buffering runners was less than the minimum pipe diameter of vacuum test tube, the interval between the brush root is greater than the external diameter of notch pipeline. This is a preferred fit and can be set as desired.

As shown in fig. 1, the blower 101 is installed in the ceiling above the ceiling of the receiving point of the pneumatic transportation device, the suction port of the blower is connected to the air pipe 103 by a clamp 131, the air pipe 103 passes through the air valve 102, and the end of the air pipe is connected to the sealing three-way module 104 by a clamp. The transmission pipeline 105 passes through the sealed three-way module 104, bends to vertically pass through the ceiling downwards, enters the elastic buffer unit 106, and finally passes out of the bottom end of the elastic buffer unit.

Fig. 2 shows the structure of the sealing three-way module 104 of the negative pressure deceleration unit provided by the utility model, the air pipe 103 is connected to the branch air port of the sealing three-way pipe 107 through a clamp 131, and the left inlet and the right outlet of the air pipe are provided with side sealing end covers 108 which are connected in a sealing manner through rubber gaskets. An end cover joint 109 is arranged on the outer side of the end cover 108, a side air outlet pipeline 110 is arranged in the three-way pipe 107, and two ends of the side air outlet pipeline are connected with the transmission pipeline 105 through the end cover joint 109. The side air outlet pipeline 110 is provided with a plurality of air outlet circular holes 1101 on the pipe surface, when the fan 101 operates, the side air outlet pipeline 110 and the gas in the outlet connection transmission pipeline 105 are continuously extracted through the air outlet circular holes 1101, and a certain negative pressure environment is formed inside the transmission pipeline 105 between the sealed three-way module 104 and the elastic buffer unit 106, so as to reduce the speed of the vacuum blood collection pipe 130 entering at a high speed. Meanwhile, the inlet transfer tube 105 is provided with a detection ring 112, and a receiving sensor 111 is disposed on the detection ring 112 for detecting arrival information of the evacuated blood collection tube 130. When the evacuated blood collection tube 130 passes the detection ring 112, the receiving sensor 111 is triggered to collect information on the number of passed evacuated blood collection tubes. Fan 101 is in controllable continuous ventilation state, and when no vacuum blood collection tube passes through for a long time, fan 101 stops, the induced draught of fan 101 can be adjusted according to the intake of actual transport vacuum blood collection tube and pipeline's length, blast gate 102 reaches the purpose of adjusting the fan amount of wind, passes side play tuber pipe 110 when vacuum blood collection tube, because of the effect that fan 101 bled can produce one and the opposite air current of vacuum blood collection tube advancing direction, forms speed reduction effect to vacuum blood collection tube to reach vacuum blood collection tube 130 and reach the purpose of elastic buffer unit 106 with lower speed. The transmission pipeline 105 is made of supermolecular material with the outer diameter of 25mm and the wall thickness of 2-2.5mm, the vacuum blood collection tube 130 is not blocked in internal transmission, and the turning radius 1051 is ensured to be larger than R800mm when the transmission pipeline 105 needs to be installed in a bending mode.

Fig. 3 shows the structure of the elastic buffer unit 106 provided by the present invention. The buffer motor base 119 and the buffer bearing base 114 are arranged on the buffer mounting plate 113, the buffer motor 118 is arranged on the motor base 119, the first bevel gear 120 is arranged on the motor shaft, the power is transmitted to the first buffer shaft 151 through the gear transmission relationship between the first bevel gear 120 and the second bevel gear 121, the buffer bearings 116 are connected to the two ends of the first buffer shaft 151, and the buffer bearings 116 are arranged on the bearing base 114. Meanwhile, the first buffer shaft 151 passes through the first duplex circular pulley 251, and the first circular pulley 231 above the first buffer shaft is rotated in the same direction at the same angular speed by the first circular belt 241; meanwhile, the first duplex circular pulley 251 makes the second duplex circular pulley 252 on the right side rotate reversely at the same angular velocity through the 8-shaped third circular belt 126, and then drives the second circular pulley 232 above through the second circular belt 242 in the above manner, and the second circular pulley 232 and the second duplex circular pulley 252 rotate in the same angular velocity and in the same direction. The first buffer shaft 151, the second buffer shaft 152, the third buffer shaft 153 and the fourth buffer shaft 154 respectively pass through the first duplex circular belt wheel 251, the second duplex circular belt wheel 252, the first circular belt wheel 231 and the first circular belt wheel 232, the first buffer brush 221, the second buffer brush 222, the third buffer brush 223 and the fourth buffer brush 224 are respectively fixed on the four shafts, and when the motor 118 rotates in a single direction, the first buffer brush 221 and the second buffer brush 222 on the left side rotate in a clockwise direction, and the third buffer brush 223 and the fourth buffer brush 224 on the right side rotate in a counterclockwise direction. The brush is arranged on both sides of the notch pipeline 117, the upper and lower 2U-shaped notches 170 and the total 4U-shaped notches are respectively arranged on both sides of the notch pipeline 117, and the bristles of the brush pass through the notches to act on the vacuum blood collection tube 130 which reaches the elastic buffer unit 106 through speed reduction. Because the brush rotation speed is slower, the vacuum blood sampling tube absorbs part of the impulse by the elastic soft hair, and then the rotation effect of the vacuum blood sampling tube smoothly passes through the elastic buffer unit 106 at the linear speed of the contact surface of the brush and the tube body, so as to achieve the buffer purpose.

The pneumatic receiving device for the vacuum blood collection tube provided by the utility model has the following working process of primary deceleration buffer receiving: the vacuum blood collection tube triggers the sensor 111 when passing through the detection ring 112 from the transmission pipeline 105, completes one-time counting, then enters the sealed three-way module 104, the fan 101 removes the air volume of the transmission pipeline 105 with a certain air volume, the rear end decelerates the vacuum blood collection tube 130 to a certain speed through the formed negative pressure environment, and the receiving is completed through the secondary energy absorption buffering of the elastic buffering unit 106. According to different receiving field conditions, the air draft amount can be adjusted through the air valve 102, and the deceleration degree of the negative pressure deceleration unit is controlled. Due to different sizes and blood sample dosages, the speed of different evacuated blood collection tubes decelerated by the negative pressure deceleration unit has a large difference, and the different evacuated blood collection tubes must be buffered to a uniform and small speed by the elastic buffer unit 106. The double-layer brush structure in the elastic buffer unit 106 can absorb certain momentum, so that a better buffer effect is achieved, and the vacuum blood collection tubes of different styles can reach a receiving point at a lower uniform speed.

In conclusion, the pneumatic vacuum blood collection tube transportation and receiving device provided by the utility model does not need manual intervention in the working process, and compared with the traditional receiving mode, the pneumatic vacuum blood collection tube transportation and receiving device has the advantages that the safety, the stability, the efficiency and the like are greatly improved, and the market application and popularization value is higher.

The embodiments described in this specification are merely examples of implementations of the inventive concepts, which are intended for illustrative purposes only. The scope of the present invention should not be construed as being limited to the particular forms set forth in the examples, but rather as being defined by the claims and the equivalents thereof which can occur to those skilled in the art upon consideration of the present inventive concept.

Claims (10)

1. The receiving mechanism of the pneumatic conveying device for the vacuum blood collection tubes is characterized by comprising a transmission pipeline and an elastic buffer unit, wherein the inner diameter of the transmission pipeline is larger than the maximum outer diameter of the vacuum blood collection tubes, and the transmission pipeline horizontally penetrates through a ceiling and then is bent to be downwards connected into the elastic buffer unit; the elastic buffer unit comprises an external frame, a power transmission module, buffer rotating wheels and a notch pipeline, wherein the power transmission module is arranged on the external frame, the power transmission module is connected with two sets of buffer rotating wheels and controls opposite directions of the two sets of buffer rotating wheels to synchronously rotate, the notch pipeline penetrates through two gaps between the buffer rotating wheels, the notch pipeline is fixed on the external frame, and two ends of the notch pipeline are communicated with the transmission pipeline.

2. The receiving mechanism of the pneumatic vacuum blood collection tube transportation device according to claim 1, further comprising a negative pressure deceleration unit installed above the ceiling, wherein the negative pressure deceleration unit comprises a blower, an air duct and a sealing tee module, the suction port of the blower is connected to the air duct, the air duct is connected to the branch port of the sealing tee module, both ends of the side air outlet duct of the sealing tee module are communicated with the transmission duct, and the duct surface of the side air outlet duct is provided with an air outlet circular hole.

3. The receiving mechanism of the pneumatic vacuum blood collection tube conveying device according to claim 1 or 2, wherein the power transmission module comprises a buffer mounting plate, a buffer motor seat, a buffer motor and a buffer bearing seat, the buffer motor seat and the buffer bearing seat are mounted on the buffer mounting plate, the buffer motor seat is provided with the buffer motor, a motor shaft of the buffer motor is provided with a first bevel gear, the first bevel gear is meshed with a second bevel gear through the first bevel gear, the second bevel gear is mounted on a first buffer shaft, two ends of the first buffer shaft are connected with buffer bearings, the buffer bearings are mounted on the buffer bearing seat, a buffer rotating wheel is fixedly mounted on the first buffer shaft, the first buffer shaft penetrates through a first duplex circular belt wheel, the first duplex circular belt wheel is in transmission connection with a second duplex circular belt wheel on the other side through a third circular belt in a shape like a letter 8, the second duplex circular belt wheel is installed on a second buffer shaft, two ends of the second buffer shaft are connected with buffer bearings, and the second buffer shaft is provided with another buffer rotating wheel.

4. The receiving mechanism of the pneumatic vacuum blood collection tube conveying device according to claim 3, wherein the number of the buffer rollers in the elastic buffer unit is 2N, N is a positive integer greater than 1, and the two buffer rollers are arranged in one group, and each group is arranged on two sides of the notch pipeline from top to bottom.

5. The mechanism of claim 4, wherein when N is 2, the first duplex circular pulley rotates the upper first circular pulley at the same angular velocity in the same direction via the first circular belt, the second duplex circular pulley drives the upper second circular pulley via the second circular belt, the third buffer shaft and the fourth buffer shaft pass through the first circular pulley and the first circular pulley, respectively, the upper buffer wheel is mounted on the third buffer shaft, and the other upper buffer wheel is mounted on the fourth buffer shaft.

6. The receiving mechanism of the pneumatic vacuum blood sampling tube transporting device of claim 1 or 2, wherein the outer ring of the buffer wheel is provided with a brush, the brush extends into the opening of the notch pipeline, the interval between the outer ends of the brushes of two adjacent buffer wheels is smaller than the minimum tube diameter of the vacuum blood sampling tube, and the interval between the roots of the brushes is larger than the outer diameter of the notch pipeline.

7. The receiving mechanism of the pneumatic conveying device for vacuum blood collection tubes according to claim 2, wherein the negative pressure deceleration unit comprises a blower installed at a ceiling above a ceiling of the receiving point of the pneumatic conveying device, an air suction port of the blower is connected with an air tube by a clamp, the air tube is provided with an air valve, and the end of the air tube is connected to the sealing tee module by the clamp.

8. The receiving mechanism of the pneumatic vacuum blood collection tube conveying device according to claim 2 or 7, wherein the sealing tee module comprises a tee pipe and a side air outlet pipeline, the tee pipe comprises a branch pipe, a left inlet and a right outlet, the left inlet and the right outlet are provided with side sealing end covers and are connected in a sealing mode through rubber gaskets, an end cover joint is arranged on the outer sides of the end covers, the side air outlet pipeline is installed inside the tee pipe, and two ends of the side air outlet pipeline are connected with the conveying pipeline through the end cover joint.

9. The receiving mechanism of the pneumatic conveying device for evacuated blood collection tubes according to claim 2 or 7, wherein the side air outlet pipeline has at least 3 air outlet circular holes on the tube surface.

10. The receiving mechanism of the pneumatic vacuum blood collection tube transportation device according to claim 2 or 7, wherein the inlet transportation tube is provided with a detection ring, and the detection ring is provided with a receiving sensor for detecting arrival information of the vacuum blood collection tube.

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