Collecting device

Abstract

The utility model relates to a gathering device which solves the technical problem that in the operation process of existing automatic winding and packaging equipment for infusion apparatuses, the width of the whole rolled infusion apparatus is large, and therefore the infusion apparatus can not be reliably loaded into a packaging bag in the follow-up process. The device comprises a base, a left stand column, a right stand column, a hollow gathering block, an air pipe guide rod and an air pipe guide rod support, the left stand column and the right stand column are connected with the base, the upper end of the left stand column and the upper end of the right stand column are connected with the hollow gathering block, the air pipe guide rod support is connected with the right stand column, and the air pipe guide rod is connected with the air pipe guide rod support. A central through hole is formed in the hollow gathering block, a passage is arranged at the top of the hollow gathering block, and the passage is communicated with the central through hole; the rear end of the air pipe guide rod extends into the central through hole of the hollow gathering block, and the front end of the air pipe guide rod is lower than the rear end of the air pipe guide rod in the vertical direction; the included angle alpha between the air pipe guide rod and the longitudinal section of the hollow gathering block is larger than 0 degree and smaller than 90 degrees.

Description

TECHNICAL FIELD

[0001] The utility model relates to infusion set automatic packaging technical field, specifically, relate to a gather device. BACKGROUND

[0002] Disposable infusion set is a common medical consumable, which is used for intravenous infusion. The disposable infusion set is usually composed of nine parts, such as intravenous needle, needle cap, infusion hose, liquid medicine filter, flow rate regulator, drip bottle, bottle plug puncture device, air pipe and air filter. The overall length of the disposable infusion set is relatively long. When the disposable infusion set is shipped, it needs to be wound and packaged with a packaging bag. The manual winding and packaging of the disposable infusion set has the problems of low efficiency and high cost. Some automatic devices on the market can realize automatic winding and packaging instead of manual operation.

[0003] The existing automatic winding and packaging device mainly includes a taking device, a winding device, a transferring device, a bag feeding device, a bag opening device and a packaging bag sealing device. The disposable infusion set to be processed is clamped and moved to the winding device by the taking device. Then, the winding device winds the infusion set into a roll shape. Then, the bag opening device opens the inlet of the packaging bag. Then, the transferring device transfers the roll-shaped infusion set to the bag opening device. Then, the bag feeding device sends the roll-shaped infusion set into the packaging bag. Finally, the packaging bag sealing device seals the packaging bag. The specific structure of the existing automatic winding and packaging device can be referred to the invention patent application with the application publication number CN111348279A and the name of infusion set automatic taking, winding and packaging device.

[0004] However, the transferring device for transferring the roll-shaped infusion set to the bag opening device or the inlet of the packaging bag adopts two sets of clamping jaws to clamp and translate the roll-shaped infusion set. During the translation of the two sets of clamping jaws with the roll-shaped infusion set, the two sets of clamping jaws pass through the first transmission hole of the bag feeding transition mold and the second transmission hole of the bag feeding mold in sequence. During the translation of the two sets of clamping jaws with the roll-shaped infusion set, the roll-shaped infusion set is located on the horizontal plane. Since the pose of the air pipe in the roll-shaped infusion set processed by the winding device is not fixed but random, the roll-shaped infusion set cannot smoothly enter the bag feeding transition mold and the bag feeding mold, and the roll-shaped infusion set cannot be smoothly loaded into the packaging bag at the subsequent station. The reliability of the entire roll-shaped infusion set loaded into the packaging bag needs to be improved. In addition, the bag feeding transition mold is a rectangular structure. The roll-shaped infusion set is relatively loose when passing through the internal space of the bag feeding transition mold with the two sets of clamping jaws. The width of the entire roll-shaped infusion set is large (i.e. the distance between the left and right sides of the entire roll-shaped infusion set is large), which is not conducive to the reliable loading into the packaging bag. SUMMARY

[0005] The present application is to solve the technical problem that the large width of the whole roll-shaped infusion device is not conducive to reliable loading into a packaging bag during the operation of the existing infusion device automatic winding and packaging equipment, and provides a folding device which is conducive to reliable loading of the whole roll-shaped infusion device into a packaging bag.

[0006] The present application provides a folding device, comprising a base, a left stand, a right stand, a hollow folding block, a trachea guide rod and a trachea guide rod support, the left stand and the right stand are connected with the base respectively, the upper end of the left stand and the upper end of the right stand are connected with the hollow folding block respectively, the trachea guide rod support is connected with the right stand, the trachea guide rod is connected with the trachea guide rod support, the hollow folding block is provided with a central through hole, the top of the hollow folding block is provided with a passageway, the passageway is communicated with the central through hole; the rear end of the trachea guide rod extends into the central through hole of the hollow folding block, in the vertical direction, the front end of the trachea guide rod is lower than the rear end of the trachea guide rod; the included angle between the trachea guide rod and the longitudinal section of the hollow folding block is α, 0°<α<90°.

[0007] Preferably, the inner diameter of the central through hole of the hollow folding block gradually decreases from front to back.

[0008] Preferably, 20°<α<60°. Further preferably, 25°<α<40°.

[0009] Preferably, the rear end of the trachea guide rod is close to the left side inner wall of the central through hole of the hollow folding block or close to the right side inner wall of the central through hole.

[0010] Preferably, the folding device further comprises a left side guide plate, the left side guide plate is connected with the left side of the hollow folding block.

[0011] Preferably, the folding device further comprises a right side guide plate, the right side guide plate is connected with the right side of the hollow folding block, and the right side guide plate is provided with an arc-shaped guide concave surface.

[0012] Preferably, the folding device further comprises a left side guide plate and a right side guide plate, the left side guide plate is connected with the left side of the hollow folding block, the right side guide plate is connected with the right side of the hollow folding block, and the right side guide plate is provided with an arc-shaped guide concave surface.

[0013] The folding device can realize folding operation, reduce the width of the whole roll-shaped infusion device, and thus be conducive to reliable loading into a packaging bag, and can also realize reliable and smooth transfer of the whole roll-shaped infusion device, thereby improving the transfer effect. The trachea guide rod of the folding device is arranged on one hand to facilitate folding of the whole roll-shaped infusion device, and on the other hand to adjust the position of the trachea of the roll-shaped infusion device gripped by the transfer device, so that the pose of the trachea of the whole roll-shaped infusion device output from the central through hole is basically fixed, thereby facilitating the whole roll-shaped infusion device to enter the packaging bag more conveniently and more smoothly.

[0014] The continuous batch operation, the trachea of each roll-shaped infusion device output from the center through hole is distributed backward, the trachea distribution position is consistent, so as to ensure that the trachea distribution position is consistent after the final roll-shaped infusion device is loaded into the packaging bag.

[0015] Further features and aspects of the present disclosure will be made apparent from the following detailed description of specific embodiments, made only by way of non-limiting example, with reference to the attached drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is an axonometric view of the trachea posture adjusting device;

[0017] Figure 2 is a front view of the trachea posture adjusting device shown in Figure 1

[0018] Figure 3 is an axonometric view of the trachea posture adjusting device from another perspective shown in Figure 1

[0019] Figure 4 is a structural schematic view of the trachea posture adjusting device in which the left and right clamping jaws are in an open state;

[0020] Figure 5 is a structural schematic view from another perspective shown in Figure 4

[0021] Figure 6 is a structural schematic view from another perspective shown in Figure 4

[0022] Figure 7 is a structural schematic view of the infusion device;

[0023] Figure 8 is a schematic view of the process of clamping the hose of the infusion device when the left and right clamping jaws of the trachea posture adjusting device are closed, wherein figure (a) is a schematic view of the initial position of the left and right clamping jaws, and figure (b) is a schematic view of the position of the left limiting plate pressing down the trachea;

[0024] Figure 9 is a schematic view of the position of the exhaust pipe of the infusion device in the structure shown in figure (b) in Figure 8

[0025] is a front view of the winding device; Figure 10

[0026] is a top view of the winding device; Figure 11

[0027] is a structural schematic view of the winding device winding the infusion device into a roll shape; Figure 12

[0028] ​​​​​Figure 13 is a position relation diagram of the winding device and the gathering device from a top view;

[0029] Figure 14 is an axonometric view of the gathering device;

[0030] Figure 15 is a front view of the gathering device shown in Figure 14

[0031] Figure 16 is a top view of the gathering device shown in Figure 14

[0032] Figure 17 is a right view of the gathering device shown in Figure 14

[0033] Figure 18 is a left view of the gathering device shown in Figure 14

[0034] Figure 19 is an axonometric view of the gathering device from another perspective;

[0035] Figure 20 is an axonometric view of the gathering device from another perspective;

[0036] Figure 21 is a diagram showing that there is an included angle between the tracheal guide rod and the longitudinal section of the hollow gathering block;

[0037] Figure 22 is a diagram showing that the rear end of the tracheal guide rod is close to the right inner wall of the central through hole of the hollow gathering block;

[0038] Figure 23 is a diagram showing that the trachea of the roll-shaped infusion device slides along the tracheal guide rod;

[0039] Figure 24 is a diagram showing the shape of the roll-shaped infusion device output from the gathering device;

[0040] Figure 25 is a diagram showing the height of the edge of the left limiting plate.

[0041] Explanation of symbols in the figure:

[0042] ​​​​1. Support plate, 2. Slide rail, 3. Slider, 4. Connecting block, 5. Connecting plate, 6. Finger cylinder, 6-1. Left finger, 6-2. Right finger, 7. Left gripper, 7-1. Left arc-shaped groove, 8. Right gripper, 8-1. Right arc-shaped groove, 9. Left limiting plate, 10. Right limiting plate, 11. Cylinder bracket, 12. Cylinder, 13. Infusion set, 13-1. Tube, 13-2. Drip pot, 13-3. Bottle stopper puncture device, 13-4. Flow rate regulator, 13-5. Trachea; 14. Winding device, 1 4-1. Rotary drive motor; 14-2. Turntable; 14-3. Winding column; 14-4. Hose clamping mechanism; 15. Gathering device; 15-1. Base; 15-2. Left column; 15-3. Right column; 15-4. Hollow gathering block; 15-4-1. Central through hole; 15-4-2. Passageway; 15-5. Left guide plate; 15-6. Right guide plate; 15-6-1. Arc-shaped guide concave surface; 15-7. Air tube guide rod; 15-8. Air tube guide rod bracket; 15-9. Longitudinal section. Detailed Implementation

[0043] The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] The specific embodiments described below are merely preferred embodiments of this application, and the scope of protection of this application is not limited thereto. Those skilled in the art can make modifications or variations based on the principles, concepts, and spirit of this application, and the resulting technical solutions should all be covered within the scope of protection of this application.

[0045] For automated wrapping equipment used in infusion sets, a tubing posture adjustment device can adjust the posture of the tubing of a single infusion set being processed. For example... Figures 1-3 As shown, the tracheal posture adjustment device includes a support plate 1, a slide rail 2, a slider 3, a connecting block 4, a connecting plate 5, a finger cylinder 6, a left gripper 7, a right gripper 8, a left limiting plate 9, a right limiting plate 10, a cylinder bracket 11, and a cylinder 12. The slide rail 2 is fixedly installed on the support plate 1, the slider 3 is connected to the slide rail 2, the connecting block 4 is fixedly installed on the slider 3, the connecting plate 5 is fixedly connected to the connecting block 4, the finger cylinder 6 is fixedly installed on the connecting plate 5, the finger cylinder 6 has a left finger 6-1 and a right finger 6-2, the left gripper 7 is connected to the left finger 6-1, the right gripper 8 is connected to the right finger 6-2, the left limiting plate 9 is connected to the left gripper 7, the right limiting plate 10 is connected to the right gripper 8, the cylinder bracket 11 is fixedly installed on the support plate 1, the cylinder 12 is installed on the cylinder bracket 11, and the telescopic rod of the cylinder 12 is connected to the connecting block 4. The finger cylinder 6 is located in the vertical direction, the left gripper 7 and the right gripper 8 are located in the vertical direction, and the opening and closing of the left finger 6-1 and the right finger 6-2 of the finger cylinder 6 can drive the left gripper 7 and the right gripper 8 to open and close. Figures 1-3The left finger 6-1 and the right finger 6-2 are shown in a closed state, the left clamp jaw 7 and the right clamp jaw 8 are shown in a closed state, and the left limiting plate 9 and the right limiting plate 10 are shown in a closed state. As shown in Figures 4-6 Fig. 1(b), when the left finger 6-1 and the right finger 6-2 of the finger cylinder 6 are opened, the left clamp jaw 7 and the right clamp jaw 8 are in an open state, and the left limiting plate 9 and the right limiting plate 10 are also in an open state. As can be seen from the figure, the left clamp jaw 7 is provided with a left arc-shaped groove 7-1, and the right clamp jaw 8 is provided with a right arc-shaped groove 8-1. The left arc-shaped groove 7-1 and the right arc-shaped groove 8-1 are oppositely formed to form a clamping part for the hose. Those skilled in the art can understand that the clamping part of this specific structure is only a specific structure selection. As can be seen from the figure, the type of the finger cylinder 6 is Y-shaped, and the left finger 6-1 and the right finger 6-2 are opened at a certain angle. It should be noted that the selection of the Y-shaped finger cylinder is only a preferred specific selection, and the finger structure of the finger cylinder 6 can also be other structures such as parallel running fingers.

[0046] As shown in Figure 7 Fig. 2, the infusion device 13 includes a hose 13-1, a drip bottle 13-2, a bottle plug piercer 13-3, a flow rate regulator 13-4, and an air tube 13-5. When the left clamp jaw 7 and the right clamp jaw 8 are closed, the hose 13-1 of the infusion device is clamped, for example, a part of the hose 13-1 close to the air tube 13-5 can be clamped, as shown in Figure 8 Fig. 2(b) and Figure 9 Fig. 2(c). When the left clamp jaw 7 and the right clamp jaw 8 are closed, the left arc-shaped groove 7-1 and the right arc-shaped groove 8-1 clamp the part of the hose 13-1 close to the air tube 13-5, and at the same time, the left limiting plate 9 presses down the air tube 13-5, so that the air tube 13-5 is bent downward. Under the action of the left limiting plate 9, the air tube 13-5 is arranged downward as a whole, so as to avoid the air tube 13-5 being arranged on a substantially horizontal plane or being arranged upward. As shown in the figure, the rear end of the left limiting plate 9 is connected with the left clamp jaw 7, and the shape of the left limiting plate 9 is an overall arc shape. Moreover, from the rear end to the front end of the left limiting plate 9, the height H of the edge of the left limiting plate 9 gradually increases (as shown in Figure 25 Fig. 2(c)), and this shape is a preferred shape. However, the specific shape of the left limiting plate 9 is not limited thereto, and can also be other shapes capable of pressing down the air tube 13-5. When the left clamp jaw 7 and the right clamp jaw 8 are closed to clamp the hose, there is a case that the right limiting plate 10 presses down the air tube, so that the air tube is arranged downward as a whole. That is, whether the right limiting plate 10 or the left limiting plate 9 acts depends on the position of the air tube before the left limiting plate 9 or the right limiting plate 10 acts on the air tube.

[0047] The structure of the right limiting plate 10 is the same as that of the left limiting plate 9.

[0048] Before the tracheal posture adjustment device is used, the infusion set is straightened. The device used to achieve this straightening function can be any commonly used device in the existing technology (such as the device disclosed in invention patent application CN118545341A). [Reference] Figure 8 In Figure (a), the initial position of the left clamp 7 and right clamp 8 before movement is in front of the drip chamber 13-2 on the tubing. At this position, the left clamp 7 and right clamp 8 are closed, and the left limiting plate 9 or right limiting plate 10 is not in contact with the trachea 13-5. Then, the cylinder 12 is activated, and its extension rod extends, moving the finger cylinder 6 forward. The finger cylinder 6 moves the left clamp 7 and right clamp 8 forward, while the infusion set remains stationary. The left clamp 7 and right clamp 8 slide along the tubing of the infusion set, and the left limiting plate 9 and right limiting plate 10 move forward. When the left limiting plate 9 and right limiting plate 10 reach the position of the trachea 13-5, the left limiting plate 9 presses down on the trachea 13-5, causing the trachea 13-5 to be positioned downwards as a whole. Figure 8 Chinese map (b) and Figure 9 As shown, the posture adjustment of trachea 13-5 is now complete.

[0049] After the trachea 13-5 is properly positioned, the feeding device moves the entire infusion set to a position close to the winding device, specifically above it. Simultaneously, the trachea positioning device also moves.

[0050] like Figure 10 and 11 As shown, the winding device adopts a structure commonly found in the prior art. The winding device 14 may include a rotary drive motor 14-1, a turntable 14-2, winding columns 14-3, and a hose clamping mechanism 14-4. The turntable 14-2 is connected to the output shaft of the rotary drive motor 14-1, the four winding columns 14-3 are connected to the turntable 14-2, and the hose clamping mechanism 14-4 is installed on the edge of the turntable 14-2.

[0051] When the feeding device, left gripper 7, and right gripper 8 move the infusion set above the winding device, the entire feeding device moves downwards, and the air tube attitude adjustment device also moves downwards. The infusion set tubing moves downwards to the clamping mechanism 14-4. At this time, since the air tube 13-5 is arranged downwards, and since the clamping mechanism 14-4 is located at the edge of the entire winding device, the air tube 13-5 will be located at the edge of the turntable 14-2 (e.g., ...). Figure 12(As shown), then the tubing clamping mechanism 14-4 clamps the tubing of the infusion set (at this time, the trachea is still arranged downwards). Then, the left clamp 7 and right clamp 8 open, the trachea posture adjustment device is removed, the material handling device releases the infusion set and is removed, and then the rotary drive motor 14-1 works to make the turntable 14-2 rotate. The four winding columns 14-3 rotate with the rotation of the turntable 14-2, thereby winding the entire infusion set into several turns, finally forming a coil, as shown. Figure 12 As shown. After the entire infusion set is wound into a coil, the rotary drive motor 14-1 stops, and the tubing clamping mechanism 14-4 releases the tubing.

[0052] Next, the transfer device removes the coiled infusion set. Specifically, the two sets of grippers on the transfer device respectively hold the front and rear portions of the coiled infusion set, as described in the reference. Figure 12 The coiled infusion set can be divided into an upper part, a lower part, a left part, and a right part, with the upper part being the front part and the lower part being the rear part. Then, the two sets of grippers of the transfer device move upward, thereby lifting the coiled infusion set upward, that is, the coiled infusion set is detached from the winding device, at which point the air tube of the infusion set is in a natural hanging state.

[0053] Next, the transfer device moves forward, referencing... Figure 13 The transfer device moves toward the gathering device 15 in the direction of the arrow in the diagram.

[0054] like Figures 14-20 As shown, the gathering device 15 includes a base 15-1, a left column 15-2, a right column 15-3, a hollow gathering block 15-4, a left guide plate 15-5, a right guide plate 15-6, an air pipe guide rod 15-7, and an air pipe guide rod bracket 15-8. The left column 15-2 and the right column 15-3 are fixedly connected to the base 15-1, and the upper ends of the left column 15-2 and the right column 15-3 are fixedly connected to the hollow gathering block 15-4. The left guide plate 15-5 is fixedly connected to the hollow gathering block 15-4. The hollow accumulator block 15-4 is connected to the left side, and the right guide plate 15-6 is connected to the right side of the hollow accumulator block 15-4. The tracheal guide rod bracket 15-8 is fixedly connected to the right column 15-3, and the tracheal guide rod 15-7 is connected to the tracheal guide rod bracket 15-8. The hollow accumulator block 15-4 has a central through hole 15-4-1 with an inner diameter that gradually decreases from front to back. The top of the hollow accumulator block 15-4 has a passageway 15-4-2, which communicates with the central through hole 15-4-1. The rear end of the tracheal guide rod 15-7 extends into the central through hole 15-4-1 of the hollow accumulator block 15-4. In the vertical direction, the front end of the tracheal guide rod 15-7 is lower than the rear end of the tracheal guide rod 15-7. (Reference) Figure 21, the included angle between the tracheal guide rod 15-7 and the longitudinal section of the hollow gathering block 15-4 is α, 0° < α < 90°, the further preferred value range of the included angle α is: 20° < α < 60°, and the further preferred value range is: 25° < α < 40°; for the rear end of the tracheal guide rod 15-7 extending into the center through hole 15-4-1 of the hollow gathering block 15-4, the figure shows that the rear end of the tracheal guide rod 15-7 is close to the left inner wall of the center through hole 15-4-1, and this position structure is only a preferred choice. The right guide plate 15-6 is provided with an arc-shaped guide concave surface 15-6-1, and it should be noted that the preferred technical means of arranging the left guide plate 15-5 and the right guide plate 15-6 is that the inner side of the left guide plate 15-5 can guide the roll-shaped infusion device to the center through hole 15-4-1, and the arc-shaped guide concave surface 15-6-1 of the right guide plate 15-6 can guide the roll-shaped infusion device to the center through hole 15-4-1, and the left guide plate 15-5 and the right guide plate 15-6 are used at the same time to form a flared structure; those skilled in the art can understand that the left guide plate 15-5 and the right guide plate 15-6 can not be arranged.

[0055] It should be noted that for the rear end of the tracheal guide rod 15-7 extending into the center through hole 15-4-1 of the hollow gathering block 15-4, refer to Figure 22 , the rear end of the tracheal guide rod 15-7 can also be close to the right inner wall of the center through hole 15-4-1.

[0056] Refer to Figure 13 , the transfer device moves the roll-shaped infusion device to the gathering device 15 in the horizontal plane, since the trachea of the roll-shaped infusion device is in a natural downward state, the trachea will contact and slide along the tracheal guide rod 15-7, as Figure 23As shown, as the roll-shaped infusion device moves towards the center through hole 15-4-1 of the hollow gathering block 15-4, the air tube gradually approaches the body of the roll-shaped infusion device, and finally the air tube approaches the body of the roll-shaped infusion device in a substantially horizontal posture, and the air tube smoothly enters the center through hole 15-4-1, and then the entire roll-shaped infusion device is gathered in the center through hole 15-4-1, and the width of the entire roll-shaped infusion device becomes smaller (i.e. the distance between the left and right sides of the entire roll-shaped infusion device becomes smaller); during the gathering of the entire roll-shaped infusion device in the center through hole 15-4-1, the two groups of clamping jaws of the transfer device pass through the passageway 15-4-2. The air tube guide rod 15-7 can also adjust the position of the air tube of the roll-shaped infusion device, so that the pose of the air tube of the entire roll-shaped infusion device output from the center through hole 15-4-1 is substantially fixed, thereby facilitating the subsequent entry of the entire roll-shaped infusion device into the package more conveniently and smoothly. Finally, the entire roll-shaped infusion device output from the center through hole 15-4-1 enters the bagging station, and at this time the entire roll-shaped infusion device can be smoothly and reliably packed into the packaging bag. The pose of the air tube of the entire roll-shaped infusion device output from the center through hole 15-4-1 is as shown in Figure 24 Figure 24 The arrow direction is the forward translation direction of the entire roll-shaped infusion device, and it can be seen that the air tube 13-5 is distributed backward, so that the entire roll-shaped infusion device can more conveniently and smoothly enter the packaging bag. In addition, the air tube of each roll-shaped infusion device formed by continuous batch operation is distributed backward, that is, the position of the air tube distribution of each roll-shaped infusion device is consistent, so that the position of the air tube distribution is consistent after the final roll-shaped infusion device is packed into the packaging bag.

[0057] In some cases, the width of the roll-shaped infusion device waiting for gathering processing is large, so before entering the center through hole 15-4-1 of the hollow gathering block 15-4, the left side of the roll-shaped infusion device first contacts the left guide plate 15-5 to be guided to the front entrance direction of the center through hole 15-4-1, or the right side of the roll-shaped infusion device first contacts the arc-shaped guide concave surface 15-6-1 of the right guide plate 15-6 to be guided to the front entrance direction of the center through hole 15-4-1, or the left guide plate 15-5 and the right guide plate 15-6 act simultaneously.

[0058] Under the action of the air tube guide rod 15-7, the entire roll-shaped infusion device can be reliably and smoothly transferred, and the transfer effect is improved; it is also beneficial to the gathering operation of the entire roll-shaped infusion device in the hollow gathering block 15-4.​

Claims

1. A collection device, characterized in that, The device includes a base, a left column, a right column, a hollow assembling block, an air tube guide rod, and an air tube guide rod support. The left and right columns are connected to the base, and the upper ends of the left and right columns are connected to the hollow assembling block. The air tube guide rod support is connected to the right column, and the air tube guide rod is connected to the air tube guide rod support. The hollow assembling block has a central through hole, and a passageway is provided at the top of the hollow assembling block, which communicates with the central through hole. The rear end of the air tube guide rod extends into the central through hole of the hollow assembling block, and in the vertical direction, the front end of the air tube guide rod is lower than the rear end of the air tube guide rod. The angle between the air tube guide rod and the longitudinal section of the hollow assembling block is α, where 0° < α < 90°.

2. The gathering device according to claim 1, characterized in that, The inner diameter of the central through hole of the hollow converging block gradually decreases from front to back.

3. The collection device according to claim 1 or 2, characterized in that, 20°＜α＜60°。 4. The gathering device according to claim 3, characterized in that, 25°＜α＜40°。 5. The collection device according to claim 1 or 2, characterized in that, The rear end of the tracheal guide rod is located near the left inner wall of the central through hole of the hollow converging block or near the right inner wall of the central through hole.

6. The gathering device according to claim 1 or 2, characterized in that, The gathering device also includes a left guide plate, which is connected to the left side of the hollow gathering block.

7. The gathering device according to claim 1 or 2, characterized in that, The gathering device also includes a right-side guide plate, which is connected to the right side of the hollow gathering block, and the right-side guide plate is provided with an arc-shaped guide concave surface.

8. The collection device according to claim 1 or 2, characterized in that, The gathering device also includes a left guide plate and a right guide plate. The left guide plate is connected to the left side of the hollow gathering block, and the right guide plate is connected to the right side of the hollow gathering block. The right guide plate is provided with an arc-shaped guide concave surface.

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