CN215905429U - Pneumatic transmitting device - Google Patents

Abstract

The utility model relates to a pneumatic sending device, which comprises a transmission line, a pneumatic sending mechanism and a cache mechanism, wherein the transmission line is connected with the pneumatic sending mechanism; the buffer mechanism comprises a first position for receiving the sample tubes sent by the transmission line, more than one buffer position for buffering the sample tubes and a second position for sending the sample tubes out to the pneumatic sending mechanism; the sample tube is movable on the buffer mechanism from the first position to the second position through the buffer position. The transmission line and the pneumatic sending mechanism are separated by the buffer mechanism, the transmission line is not directly matched with the pneumatic sending mechanism, the influence on the transmission process due to the mismatching of the transmission speed of the transmission line and the pneumatic sending mechanism is reduced, and the processing stability is further improved.

Description

Pneumatic transmitting device

Technical Field

The utility model relates to the technical field of sample tube transmission devices, in particular to a pneumatic sending device.

Background

With the development of the medical field, the demand for sample tubes for holding samples (e.g. blood samples, body fluid samples) is increasing. An existing sample tube generally comprises a tube body and a tube cap, wherein an accommodating cavity for accommodating a sample is formed in the inner wall of the tube body, and the tube cap is arranged at an opening of the tube body to seal the sample in the accommodating cavity.

In the conventional technology, the requirement for storing and transferring sample tubes may occur in the manufacturing, using and other links of the sample tubes, for example, a large number of sample tubes are applied to a clinical laboratory of a hospital, are limited by the space of the clinical laboratory, cannot meet the storage requirement of a large number of unused sample tubes, and then the sample tubes need to be stored and transferred. Alternatively, the sample tube may need to be stored and transferred in different spaces during the production process. Therefore, a transmission technology for sample tubes has appeared in the prior art, for example, chinese utility model patent CN211712095U provides a pneumatic sending mechanism for sample tubes, which can transfer the sample tubes more reliably and efficiently.

However, the current transmission technology of the sample tube has the problem that the transmission speeds of the transmission line and the pneumatic transmission mechanism cannot be matched. For example, the sample tubes sent by the transmission line to the pneumatic sending mechanism have no space, and the sample tubes sent by the pneumatic sending mechanism have space, so that the number of the sample tubes sent in certain time periods is large, and the number of the sample tubes sent in certain time periods is small, which results in that the transmission efficiency of the transmission line for sending the sample tubes to the sample tubes cannot be matched with the transmission efficiency of the pneumatic sending mechanism for sending the sample tubes, and reduces the overall processing speed.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a pneumatic sending device for solving the problem that the transmission efficiency of the transmission line for feeding the sample tubes and the transmission efficiency of the pneumatic sending mechanism for sending the sample tubes cannot be matched.

A pneumatic sending device comprises a transmission line and a pneumatic sending mechanism, and further comprises a caching mechanism; the buffer mechanism comprises a first position for receiving the sample tubes sent by the transmission line, more than one buffer position for buffering the sample tubes and a second position for sending the sample tubes out to the pneumatic sending mechanism; the sample tube is movable on the buffer mechanism from the first position to the second position through the buffer position.

The technical solution of the present application is further explained as follows:

in one embodiment, the caching mechanism further comprises: a first fixed portion provided with the first position and a second position, the first position being proximate to the outlet end of the transmission line, the second position being proximate to the inlet end of the pneumatic routing mechanism; the buffer storage frame is rotationally connected with the first fixing part, and the buffer storage position comprises a containing groove which is formed in the buffer storage frame and used for containing a sample tube; the sample tube can move from the first position to the accommodating groove of the buffer storage frame, and the buffer storage frame can rotate relative to the first fixing part so that the accommodating groove can rotate from the first position to the second position.

In one embodiment, the first fixing portion includes a first side plate and a second side plate respectively disposed at two sides of the cache frame, the first position is a first channel penetrating through the first side plate, and the second position is a second channel penetrating through the first side plate.

In one embodiment, the first channel is a first notch opened at the edge of the first side plate; the second channel is a second notch arranged at the edge of the first side plate.

In one embodiment, the transmission line and the pneumatic sending mechanism are both disposed on the first fixing portion, and the transmission line and the pneumatic sending mechanism are located on the same side of the buffer rack.

In one embodiment, the receiving grooves are arranged in a horizontal direction.

In one embodiment, the receiving groove is opened on an outer ring surface of the buffer frame, and the receiving groove forms an opening on the outer ring surface.

In one embodiment, the accommodating groove is an arc-shaped groove, and the arc-shaped groove is arranged in parallel to the axial direction of the cache frame.

In one embodiment, the opening is smaller than the diameter of the body of the sample tube.

In one embodiment, the pneumatic transport device further comprises a first pushing mechanism capable of driving the sample tube to move from the outlet end of the transport line to the first position.

In one embodiment, the first pushing mechanism comprises a first pushing part and a first driving component capable of driving the first pushing part to move relative to the cache frame.

In one embodiment, the first driving element is disposed above the transmission line.

In one embodiment, the pneumatic transport device further comprises a second pushing mechanism capable of driving the sample tube to move from the second position to the inlet end of the pneumatic transport mechanism.

In one embodiment, the second pushing mechanism comprises a second pushing part and a second driving component capable of driving the second pushing part to move relative to the cache shelf.

In one embodiment, the second pushing part includes a pushing plate connected to the second driving assembly, the pushing plate extends from the outer side of the accommodating groove to the inner side through the opening, and moves relative to the buffer frame along the arrangement direction of the accommodating groove to push the sample tube to move in the accommodating groove.

In one embodiment, the pneumatic sending device further comprises: the second fixing part is used for holding the sample tube, the second fixing part is arranged at the outlet end of the transmission line, and the first position is a position where the second fixing part is close to the outlet end of the transmission line; the conveying channel is arranged at the inlet end of the pneumatic sending mechanism, and the second position is the position of the conveying channel close to the inlet end of the pneumatic sending mechanism; the buffer position comprises a position on the second fixing part except the first position, and the buffer position is inclined from the first position to the transmission channel, so that the sample tube can slide on the second fixing part from the first position to the second position of the transmission channel through the buffer position.

In one embodiment, the pneumatic transmission mechanism is disposed obliquely below the transmission line, and the second fixing portion is disposed obliquely downward.

In one embodiment, the second fixing portion comprises two slide rails spaced apart by a holding distance, and the holding distance is greater than a tube body diameter of the sample tube and less than a tube cap diameter of the sample tube.

In one embodiment, the slide rail is provided with a hanging groove, and the sample tube can be hung between the hanging grooves on two sides through a tube cap.

In one embodiment, a stopping mechanism is disposed at a position of the second fixing portion close to the transport channel, and the stopping mechanism includes a blocking portion capable of rotating relative to the second fixing portion, and the blocking portion blocks/releases the sample tube during rotation.

In one embodiment, the blocking portion is a circular arc plate.

In one embodiment, a limiting plate is disposed on the second fixing portion and close to the transmission channel, and the limiting plate can limit the sample tube from being transferred from the second fixing portion to the transmission channel.

In one embodiment, the transfer passage is a transfer chamber surrounded by a surrounding plate, the transfer chamber has a first opening communicating with the second fixing portion and a second opening communicating with the inlet end of the pneumatic sending mechanism, and the second opening is at the second position.

In one embodiment, the second opening position is provided with an inclined guide plate, and the sample tube can slide along the inclined guide plate to the inlet end of the pneumatic sending mechanism.

The pneumatic sending device is provided with a buffer memory mechanism to provide a first position, more than one buffer memory position and a second position, the sample tube sent by the transmission line is transferred to the buffer memory position through the first position, the sample tube is temporarily stored by using more than one buffer memory position and is stored to the time point that the pneumatic sending mechanism can send the sample tube, and the sample tube is transferred to the pneumatic sending mechanism through the second position through the buffer memory position to be sent subsequently. According to the arrangement mode, the transmission line and the pneumatic sending mechanism are separated by the buffer mechanism, the transmission line and the pneumatic sending mechanism are not directly matched, the influence on the transmission process due to the fact that the transmission speed of the transmission line and the transmission speed of the pneumatic sending mechanism are not matched is reduced, and the processing stability is further improved.

Drawings

FIG. 1 is a schematic structural diagram of a pneumatic dispensing device according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic view of the pneumatic dispensing device of FIG. 1 from another perspective;

FIG. 4 is a top view of a pneumatic dispensing device in accordance with one embodiment of the present invention;

FIG. 5 is a front view of a pneumatic dispensing device in accordance with an embodiment of the present invention;

FIG. 6 is a schematic view of the pneumatic dispensing device of FIG. 1 from another perspective;

FIG. 7 is a partial enlarged view of portion B of FIG. 6;

FIG. 8 is a schematic structural diagram of another view angle (hidden by the second pushing part) of FIG. 7;

FIG. 9 is a diagram illustrating a structure of a cache shelf according to an embodiment of the utility model;

FIG. 10 is a schematic structural view of a pneumatic dispensing device according to another embodiment of the present invention;

FIG. 11 is a schematic view of the pneumatic dispensing device of FIG. 10 from another perspective;

FIG. 12 is a schematic view of the pneumatic dispensing device of FIG. 10 from another perspective;

fig. 13 is a partial enlarged view of portion C of fig. 12;

fig. 14 is a partial enlarged view of portion D of fig. 12;

fig. 15 is a partially enlarged view of the position of the stopper mechanism (the stopper plate is hidden).

Reference numerals:

1. a pneumatic delivery device; 10. a caching mechanism; 100. a first fixed part; 110. a base plate; 120. a first side plate; 121. a first position; 122. a second position; 123. a transfer block; 1231. a third notch; 130. a second side plate; 140. a vertical plate; 200. a cache shelf; 210. an inner ring surface; 211. a fixed part; 2111. lightening holes; 212. a keyway; 220. an outer ring surface; 221. accommodating grooves; 300. a rotary drive assembly; 400. a first pushing mechanism; 410. a first pushing section; 411. a connecting plate; 412. a push block; 420. a first drive assembly; 500. a second pushing mechanism; 510. a second pushing section; 511. a push plate; 5111. a connecting end; 5112. a pushing end; 520. a second drive assembly; 600. a second fixed part; 610. a slide rail; 611. a suspension groove; 620. a limiting plate; 630. a gear stop mechanism; 631. a blocking portion; 700. a transmission channel; 710. an inclined guide plate; 20. a transmission line; 30. a pneumatic sending mechanism; 2. and (5) sampling the sample tube.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

The pneumatic sending device 1 provided by an embodiment of the present invention includes a transmission line 20 and a pneumatic sending mechanism 30, and is applied to the transmission technology of the sample tube 2. In the links of manufacturing and using the sample tube 2, when the sample tube 2 needs to be stored and transferred in different spaces, the transmission technology of the sample tube 2 has a problem that the transmission speeds of the transmission line 20 and the pneumatic transmission mechanism 30 cannot be matched. In order to solve the above problem, the pneumatic conveying device 1 is provided with a buffer mechanism 10 for buffering the sample tubes 2. Specifically, referring to fig. 1 to 15, the pneumatic conveying apparatus 1 according to some embodiments of the present invention further includes a buffer mechanism 10; the buffer mechanism 10 includes a first position 121 for receiving the sample tube 2 fed by the transmission line 20, more than one buffer positions for buffering the sample tube 2, and a second position 122 for feeding the sample tube 2 to the pneumatic sending mechanism 30; the sample tube 2 can be moved on the buffer means 10 from a first position 121 via a buffer position to a second position 122.

The pneumatic conveying apparatus 1 is provided with a buffer mechanism 10 to provide a first position 121, more than one buffer position and a second position 122. The sample tube 2 fed by the transport line 20 is transferred to the buffer position through the first position 121, the sample tube 2 is temporarily stored in one or more buffer positions, the sample tube is stored until the time point when the pneumatic transport mechanism 30 can transport the sample tube, and the sample tube 2 is transferred from the buffer position to the pneumatic transport mechanism 30 through the second position 122 for subsequent transport. In such a setting mode, the transmission line 20 is separated from the pneumatic sending mechanism 30 by the buffer mechanism 10, and the transmission line 20 is not directly matched with the pneumatic sending mechanism 30 any more, so that the influence on the transmission process due to the mismatching of the transmission speeds of the transmission line 20 and the pneumatic sending mechanism 30 is reduced, and the processing stability is further improved.

With continued reference to fig. 1-9, in an embodiment, the buffer mechanism 10 further includes a first fixing portion 100 and a buffer frame 200; wherein the first fixing portion 100 is provided with a first position 121 and a second position 122, the first position 121 is close to the outlet end of the transmission line 20, and the second position 122 is close to the inlet end of the pneumatic sending mechanism 30; the buffer storage frame 200 is rotatably connected to the first fixing part 100, and the buffer storage position comprises a holding groove 221 which is formed in the buffer storage frame 200 and used for holding the sample tube 2; sample tube 2 can move from first position 121 to receiving cavity 221 of buffer frame 200, and buffer frame 200 can rotate relative to first fixing portion 100, so that receiving cavity 221 rotates from first position 121 to second position 122.

The pneumatic transmitting device 1 is provided with the first fixing part 100 and the buffer storage frame 200 rotatably connected thereto, the outlet end of the first fixing part 100 relative to the transmission line 20 is stationary with the inlet end of the pneumatic transmitting mechanism 30, and the buffer storage frame 200 rotates relative to the first fixing part 100 to realize the transmission path of the sample tube 2: the sample tube 2 is buffered from the exit end of the transportation line 20 to the receiving cavity 221 of the buffer storage rack 200 through the first position 121 until the time point when the pneumatic dispensing mechanism 30 can dispense the sample tube, and the sample tube 2 is buffered from the receiving cavity 221 of the buffer storage rack 200 to the entrance end of the pneumatic dispensing mechanism 30 through the second position 122. By using the receiving grooves 221 on the buffer storage rack 200 to hold the sample tubes 2 and driving the buffer storage rack 200 to rotate so as to drive the sample tubes 2 to move, when the pneumatic sending mechanism 30 can send the sample tubes 2, the sample tubes 2 held in the receiving grooves 221 closest to the second position 122 can be moved to the second position 122 through the buffer storage rack 200 in a rotating manner, so that subsequent transmission is performed, and compared with sequential transmission, the transmission efficiency can be improved to a certain extent. It should be noted that, in addition to the above, the sample tube 2 in the receiving groove 221 relatively far from the second position 122 can be selected for subsequent transportation.

Referring to fig. 5, in one embodiment, the buffer frame 200 is driven to rotate relative to the first fixing portion 100 by the rotation driving assembly 300. With continued reference to fig. 1, 2, 4-7, in an embodiment, the first fixing portion 100 includes a bottom plate 110, a first side plate 120 and a second side plate 130 that are disposed at an interval on the bottom plate 110, the first position 121 is a first channel that penetrates through the first side plate 120, and the second position 122 is a second channel that penetrates through the first side plate 120; the buffer frame 200 is disposed between the first side plate 120 and the second side plate 130. The pneumatic sending device 1 is provided with a first channel and a second channel, wherein the first channel provides a channel for the sample tube 2 to move from the outlet end of the transmission line 20 to the buffer position, and the second channel provides a channel for the sample tube 2 to move from the buffer position to the inlet end of the pneumatic sending mechanism 30. It should be noted that the arrangement of the first channel and the second channel includes, but is not limited to, a notch and a through hole. For example, with continued reference to fig. 2 and 8, in one embodiment, the first channel is a first notch opened at an edge of the first side plate 120; the second channel is a second notch opened at the edge of the first side plate 120. In one embodiment, as shown in fig. 2, the first notch is a U-shaped notch corresponding to the position of the receiving groove 221 of the buffer frame 200. As shown in fig. 8, in an embodiment, the second notch is a U-shaped notch corresponding to the position of the receiving groove 221 of the buffer frame 200. It should be noted that the first notch and the second notch may be partially circular arc shapes, besides U-shaped ones, as long as the passing requirement of the sample tube 2 is satisfied. In addition, the buffer frame 200 is disposed between the first side plate 120 and the second side plate 130, so that the first side plate 120 and the second side plate 130 can prevent the sample tubes 2 from falling off the buffer frame 200 due to shaking in the rotation process of the buffer frame 200. Referring to fig. 8, in an embodiment, an adapting block 123 is disposed between the second notch and the inlet end of the pneumatic sending mechanism 30, and a third notch 1231 is disposed on the adapting block 123 and is in butt joint with the second notch, so that the sample tube 2 plays a transition role when moving from the second notch to the inlet end of the pneumatic sending mechanism 30.

Referring to fig. 1 and 4, in an embodiment, the transmission line 20 and the pneumatic sending mechanism 30 are disposed on the first fixing portion 100, and the transmission line 20 and the pneumatic sending mechanism 30 are located on the same side of the buffer frame 200. It should be noted that, in some embodiments, the transmission line 20 and the pneumatic sending mechanism 30 may also be located on both sides of the buffer frame 200, and in cooperation therewith, only the first position 121 and the second position 122 need to be respectively disposed on the first side plate 120 and the second side plate 130 on both sides of the buffer frame 200. With continued reference to fig. 1 and 4, in one embodiment, a vertical plate 140 is disposed on the bottom plate 110, a pneumatic sending mechanism 30 is disposed on a front surface of the vertical plate 140, and a transmission line 20 is disposed on a back surface of the vertical plate 140. In the pneumatic sending device 1, the first position 121 and the second position 122 are both disposed on the first side plate 120, the vertical plate 140 is disposed on the bottom plate 110 close to the first side plate 120, the pneumatic sending mechanism 30 and the transmission line 20 are respectively disposed on two sides of the vertical plate 140, the first position 121 corresponds to an outlet end of the transmission line 20, and the second position 122 corresponds to an inlet end of the pneumatic sending mechanism 30. The arrangement mode is beneficial to reducing the volume of the device so that the appearance of the device is more regular. It should be noted that the first position 121 may be provided on the first side plate 120, the second position 122 may be provided on the second side plate 130 facing the first side plate 120, and the relative positions of the transmission line 20 and the pneumatic transmitting mechanism 30 may be adaptively provided, or the first position 121 and the second position 122 may be provided according to the existing relative positional relationship between the transmission line 20 and the pneumatic transmitting mechanism 30. In addition, the vertical plate 140 may be one plate or two or more relatively stationary mounting plates, and only the requirement of arranging the transmission line 20 and the pneumatic sending mechanism 30 back to back needs to be met.

Referring to fig. 9, in an embodiment, the receiving groove 221 is opened on the outer circumferential surface 220 of the buffer frame 200, and the receiving groove 221 forms an opening on the outer circumferential surface 220. In one embodiment, the opening is smaller than the diameter of the body of the sample tube 2. It should be noted that, when the holding groove 221 holds the sample tube 2 by other means, the opening size may be larger than or equal to the tube body diameter, such as vacuum suction. With reference to fig. 9, in an embodiment, the buffer frame 200 includes an inner ring surface 210 and an outer ring surface 220, wherein the inner ring surface 210 encloses an accommodation space, a fixing portion 211 is disposed in the accommodation space, the fixing portion 211 is sleeved on a rotating shaft (not shown), and the rotating shaft is disposed between the first side plate 120 and the second side plate 130; the outer ring surface 220 is disposed opposite to the inner ring surface 210, and the outer ring surface 220 defines at least one receiving groove 221. In one embodiment, at least two receiving grooves 221 are disposed on the outer ring surface 220. Preferably, the accommodating groove 221 is an arc groove recessed toward the rotation axis, and the arc groove is disposed along the axial direction of the rotation axis and penetrates through two end surfaces of the buffer frame 200. With continued reference to fig. 8, in an embodiment, the fixing portion 211 is formed with a lightening hole 2111 to lighten the weight of the whole device, the fixing portion 211 is formed with a key slot 212, and the key slot 212 is connected to the rotating shaft by a key (not shown). Preferably, the lightening holes 2111 are uniformly distributed on the fixing portion 211 to improve the rotational stability of the buffer frame 200. In one embodiment, two ends of the rotating shaft are rotatably connected to the first side plate 120 and the second side plate 130 through bearings, respectively. It should be noted that, in addition to the above arrangement, the rotating shaft may be connected to the fixing portion 211 of the buffer frame 200 through a rotating connector.

Referring to fig. 5, in one embodiment, the receiving grooves 221 are arranged in a horizontal direction. In contrast to the way of vertically inserting the sample tube 2 into the receiving cavity 221, the receiving cavity 221 needs to be set along the horizontal direction by using a valve, a switch, or the like to block the movement of the sample tube 2 in the receiving cavity 221, so that the sample tube 2 can be held in the receiving cavity 221 without external force.

Referring to fig. 1 and 2, in an embodiment, the buffer mechanism 10 further includes a first pushing mechanism 400 capable of driving the sample tube 2 to move from the outlet end of the transmission line 20 to the first position 121. In one embodiment, the first pushing mechanism 400 includes a first pushing portion 410 and a first driving assembly 420 capable of driving the first pushing portion 410 to move relative to the buffer frame 200. Specifically, the first pushing part 410 includes a connection plate 411 connected to the first driving assembly 420 and a pushing block 412 fixed to the connection plate 411. With continued reference to fig. 2, the pushing block 412 can move relative to the conveying line 20 under the driving of the first driving assembly 420 and the connecting plate 411, so as to push the sample tube 2 on the conveying line 20 to move to the first position 121, and further push the sample tube 2 to completely enter the receiving slot 221. It should be noted that the first driving assembly 420 may be a single-shaft module including a stepping motor, a servo motor and a lead screw, or may be a driving structure such as an electric actuator. In addition, the first pushing unit 410 may be provided in other modes in addition to the above-described mode. With continued reference to fig. 1, in an embodiment, the first driving assembly 420 is disposed on the vertical plate 140 above the transmission line 20, so as to facilitate pushing the sample tube 2.

Referring to fig. 6 and 7, in an embodiment, the buffer mechanism 10 further includes a second pushing mechanism 500 capable of driving the sample tube 2 to move from the second position 122 to the inlet end of the pneumatic sending mechanism 30. In an embodiment, the second pushing mechanism 500 includes a second pushing portion 510 and a second driving assembly 520 capable of driving the second pushing portion 510 to move relative to the buffer frame 200. Specifically, the second pushing part 510 includes a pushing plate 511 connected to the second driving assembly 520, the pushing plate 511 includes a connecting end 5111 and a pushing end 5112, the pushing end 5112 can extend from the outer side of the circular arc groove to the inner side through the opening, and move relative to the buffer frame 200 along the arrangement direction of the circular arc groove to push the sample tube 2 to move in the circular arc groove. In this arrangement, by utilizing the structural feature that the arc-shaped groove has an opening, the pushing plate 511 is arranged, and the pushing end 5112 of the pushing plate 511 can extend into the opening of the arc-shaped groove, so as to push the sample tube 2 inside the arc-shaped groove, that is, the sample tube 2 is moved from the arc-shaped groove to the inlet end of the pneumatic sending mechanism 30 through the second position 122. With continued reference to fig. 7, the push end 5112 includes an end that acts on the sample tube 2. Referring to fig. 6 and 7, the second driving assembly 520 is disposed at the side portions of the first side plate 120 and the second side plate 130 and is parallel to the arrangement direction of the receiving grooves 221. It should be noted that the second driving assembly 520 may be a single-shaft module including a stepping motor, a servo motor and a lead screw, or may be an electric actuator.

Referring to fig. 10-15, in an embodiment, the buffer mechanism 10 includes a second fixing portion 600 and a transmission channel 700, wherein the second fixing portion 600 is used for holding the sample tube 2, the second fixing portion 600 is disposed at the outlet end of the transmission line 20, and the first position 121 is a position where the second fixing portion 600 is close to the outlet end of the transmission line 20; the transfer channel 700 is disposed at the inlet end of the pneumatic dispensing mechanism 30, and referring specifically to fig. 13, the second position 122 is a position where the transfer channel 700 is close to the inlet end of the pneumatic dispensing mechanism 30; referring specifically to fig. 10, the buffer position includes a position on the second fixing part 600 except the first position 121, and the buffer position is inclined from the first position 121 to the transport path 700, so that the sample tube 2 can slide on the second fixing part 600 from the first position 121 to the second position 122 of the transport path 700 through the buffer position. The pneumatic conveying device 1 is provided with a second fixing part 600 and a transmission channel 700 to realize a transmission path of the sample tube 2: the outlet end of the transport line 20 is buffered from the first position 121 of the second fixing portion 600 to the buffer position of the second fixing portion 600 until the pneumatic sending mechanism 30 can send the sample tube, and the sample tube 2 slides down through the second fixing portion 600 to the transport channel 700 and then to the inlet end of the pneumatic sending mechanism 30 through the transport channel 700. With continued reference to fig. 10-15, in one embodiment, the pneumatic actuating mechanism 30 is disposed obliquely below the transfer line 20, i.e., the outlet end of the transfer line 20 is located at a position relatively higher than the inlet end of the pneumatic actuating mechanism 30, and the second fixing portion 600 is disposed obliquely downward.

Referring to fig. 12-14, in one embodiment, the second fixing portion 600 includes two slide rails 610 spaced apart by a holding distance greater than the tube diameter of the sample tube 2 and less than the cap diameter of the sample tube 2. In one embodiment, the opposite surfaces of the slide rail 610 are provided with suspension grooves 611 arranged along the slide rail 610, and the sample tube 2 can be suspended between the suspension grooves 611 on both sides by a tube cap and can slide along the suspension grooves 611. The inclination angle of the slide rail 610 is set as required, and the sample tube 2 can slide on the slide rail 610.

Referring to fig. 10, in an embodiment, a limiting plate 620 is disposed on the second fixing portion 600 near the transmission channel 700, and the limiting plate 620 can limit the sample tube 2 from the second fixing portion 600 to the transmission channel 700. With continued reference to fig. 12 and 13, in one embodiment, the transfer channel 700 is a transfer chamber surrounded by an enclosure, the transfer chamber having a first opening communicating with the second stationary portion 600 and a second opening communicating with the inlet end of the pneumatic routing mechanism 30, the second opening being the second location 122. In one embodiment, the second opening position is provided with an inclined guide plate 710, and the sample tube 2 can slide along the inclined guide plate 710 to the inlet end of the pneumatic sending mechanism 30.

Referring to fig. 15, in an embodiment, the second fixing portion 600 is provided with a stopping mechanism 630 near the transmission channel 700, the stopping mechanism 630 includes a blocking portion 631 capable of rotating relative to the second fixing portion 600, and the blocking portion 631 blocks/releases the sample tube 2 during the rotation process. The pneumatic conveying apparatus 1 is provided with a stopping mechanism 630 at the end of the second fixing portion 600, the driving member drives the blocking portion 631 to rotate, when the blocking portion 631 rotates to a state relatively close to the first position 121 (the state shown in fig. 15), the blocking portion 631 stops the sample tube 2, and when the blocking portion 631 rotates to a state relatively far from the first position 121, the blocking portion 631 releases the sample tube 2. This arrangement can control the sample tubes 2 entering the transmission channel 700 from the second fixing portion 600, for example, the sample tubes 2 can enter the transmission channel 700 from the second fixing portion 600 one by one at intervals, in an embodiment, as shown in fig. 15, the blocking portion 631 is a circular arc plate. In addition, it should be noted that the driving member for driving the blocking portion 631 to rotate includes, but is not limited to, a motor.

Referring to fig. 3 and fig. 11, in an embodiment, the pneumatic sending mechanism 30 may be a pneumatic sending mechanism for sample tubes provided in chinese utility model patent CN211712095U, or may be another pneumatic sending mechanism.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used 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 the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, and may be internal to both elements or may be interacting with each other, unless expressly defined otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (24)

1. A pneumatic sending device comprises a transmission line and a pneumatic sending mechanism, and is characterized in that,

the pneumatic sending device also comprises a caching mechanism;

the buffer mechanism comprises a first position for receiving the sample tubes sent by the transmission line, more than one buffer position for buffering the sample tubes and a second position for sending the sample tubes out to the pneumatic sending mechanism;

the sample tube is movable on the buffer mechanism from the first position to the second position through the buffer position.

2. The pneumatic conveying apparatus of claim 1, wherein the buffer mechanism further comprises:

a first fixed portion provided with the first position and a second position, the first position being proximate to the outlet end of the transmission line, the second position being proximate to the inlet end of the pneumatic routing mechanism;

the buffer storage frame is rotationally connected with the first fixing part, and the buffer storage position comprises a containing groove which is formed in the buffer storage frame and used for containing a sample tube;

the sample tube can move from the first position to the accommodating groove of the buffer storage frame, and the buffer storage frame can rotate relative to the first fixing part so that the accommodating groove can rotate from the first position to the second position.

3. The pneumatic conveying apparatus according to claim 2, wherein the first fixing portion includes a first side plate and a second side plate respectively disposed at two sides of the buffer rack, the first position is a first passage penetrating through the first side plate, and the second position is a second passage penetrating through the first side plate.

4. The pneumatic routing device of claim 3, wherein the first channel is a first notch open to an edge of the first side plate; the second channel is a second notch arranged at the edge of the first side plate.

5. The pneumatic conveying device according to claim 2, wherein the transmission line and the pneumatic conveying mechanism are disposed on the first fixing portion, and the transmission line and the pneumatic conveying mechanism are located on the same side of the buffer rack.

6. The pneumatic routing device of claim 2, wherein the receiving groove is arranged in a horizontal direction.

7. The pneumatic routing device of claim 2, wherein the receiving groove opens onto an outer annular surface of the buffer frame, the receiving groove forming an opening in the outer annular surface.

8. The pneumatic conveying apparatus as claimed in claim 7, wherein the accommodating groove is a circular arc groove arranged parallel to an axial direction of the buffer frame.

9. The pneumatic transport apparatus of claim 7, wherein the opening is smaller than a barrel diameter of the sample tube.

10. The pneumatic transport apparatus of any one of claims 2-9, further comprising a first pushing mechanism capable of driving the sample tube to move from the exit end of the transport line to the first position.

11. The pneumatic conveying apparatus according to claim 10, wherein the first pushing mechanism comprises a first pushing portion and a first driving component capable of driving the first pushing portion to move relative to the buffer frame.

12. The pneumatic routing device of claim 11, wherein the first drive assembly is disposed above the transfer line.

13. The pneumatic transport device of claim 8 or 9, further comprising a second pushing mechanism capable of driving the sample tube to move from the second position to the inlet end of the pneumatic transport mechanism.

14. The pneumatic routing device of claim 13, wherein the second pushing mechanism includes a second pushing portion and a second drive assembly capable of driving the second pushing portion to move relative to the buffer shelf.

15. The pneumatic transport device of claim 14, wherein the second pushing portion comprises a pushing plate connected to the second driving assembly, the pushing plate extends from the outer side of the accommodating groove to the inner side through the opening, and moves relative to the buffer rack along the arrangement direction of the accommodating groove to push the sample tube to move in the accommodating groove.

16. The pneumatic routing device of claim 1, further comprising:

the second fixing part is used for holding the sample tube, the second fixing part is arranged at the outlet end of the transmission line, and the first position is a position where the second fixing part is close to the outlet end of the transmission line;

the conveying channel is arranged at the inlet end of the pneumatic sending mechanism, and the second position is the position of the conveying channel close to the inlet end of the pneumatic sending mechanism;

the buffer position comprises a position on the second fixing part except the first position, and the buffer position is inclined from the first position to the transmission channel, so that the sample tube can slide on the second fixing part from the first position to the second position of the transmission channel through the buffer position.

17. The pneumatic conveying apparatus according to claim 16, wherein the pneumatic conveying mechanism is disposed obliquely below the conveying line, and the second fixing portion is disposed obliquely downward.

18. The pneumatic routing device of claim 16, wherein the second fixture comprises two slide rails spaced a holding distance apart, the holding distance being greater than a barrel diameter of the sample tube and less than a cap diameter of the sample tube.

19. The pneumatic transport device of claim 18, wherein the slide rail is provided with hanging grooves, and the sample tube can be hung between the hanging grooves on both sides by a tube cap.

20. The pneumatic transport apparatus of claim 16, wherein the second stationary portion is provided with a stop mechanism adjacent to the transport channel, the stop mechanism comprising a blocking portion rotatable relative to the second stationary portion, the blocking portion blocking/releasing the sample tubes during rotation.

21. The pneumatic routing device of claim 20, wherein the blocking portion is a circular arc shaped plate.

22. The pneumatic transport device of claim 16, wherein a limiting plate is disposed on the second stationary portion adjacent to the transport channel, the limiting plate being capable of limiting the transfer of the sample tube from the second stationary portion to the transport channel.

23. The pneumatic routing device of claim 16, wherein the transfer channel is a transfer chamber bounded by an enclosure, the transfer chamber having a first opening in communication with the second stationary portion and a second opening in communication with an inlet end of the pneumatic routing mechanism, the second opening being the second position.

24. The pneumatic transport device of claim 23, wherein the second open position is provided with an inclined guide plate along which the sample tube can slide to the inlet end of the pneumatic transport mechanism.

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