Direct insertion type pipe stacker crane

Abstract

The utility model discloses a direct insertion type pipe stacking machine, and belongs to the technical field of stacking machines. Comprising two sets of plugs moving oppositely and a bottom frame, the two ends of the bottom frame are each provided with a set of pipe inserting device, the two sets of plugs are installed at the pipe inserting devices at the two ends respectively, a movable guide rail is arranged on the surface of the bottom frame, and at least one set of pipe inserting device is slidably connected with the movable guide rail. And at least two groups of aligning devices are also arranged between the pipe inserting devices at the two ends. According to the direct insertion type pipe stacking machine, the movable pipe insertion device is arranged on the surface of the bottom frame, butt joint with the pipe fitting is achieved through the insertion head of the pipe insertion device, and the direct insertion type pipe stacking machine can be suitable for stacking the pipe fitting when the length of the pipe fitting changes in a large range on the premise that the outer surface of the pipe fitting is not damaged. By arranging the aligning device, after a preset number of pipe fittings are arranged on the surface of the aligning device, the shifting rods at the two ends act oppositely, so that the pipe fittings are in close contact, and subsequent butt joint of the plug and the pipe fittings is facilitated.

Description

Technical Field

[0001] The invention discloses a straight-insertion type pipe palletizer, belonging to the technical field of palletizers. Background Art

[0002] Pipe fittings are common building materials in the industrial field and are widely used in transportation pipelines, engineering structures, thermal equipment and other industries. In order to facilitate lifting, pipe fittings with smaller diameters often need to be transferred to the gathering station, where they are stacked and bundled into bundles. The process of stacking pipe fittings is to arrange the scattered pipe fittings in the gathering station.

[0003] In the prior art, the most common palletizing method is to clamp by a robot, such as the technical solution recorded in the Chinese utility model patent with application number 202322389275.6, application date September 4, 2023, and patent name "A Metal Product Automated Conveying and Palletizing Machine". Or by flipping, the scattered pipes are flipped and transferred to the folding station, such as the technical solution recorded in the Chinese utility model patent with application number 202320527570.0, application date March 17, 2023, and patent name "A Pipe Palletizing System". The problem with the above two solutions is that during the stacking process of pipe fittings, collisions and frictions will occur between the pipe fittings, which will cause damage to the appearance of the pipe fittings.

[0004] In order to avoid damage to the appearance of pipe fittings, there are also some technical solutions for direct plug-in palletizing in the prior art. The process of direct plug-in palletizing is that the plug controlled by the manipulator enters the interior of the pipe fitting from both ends of the pipe fitting, and then the pipe fitting is lifted and transferred. Since the plug contacts the inner wall of the pipe fitting during the transfer process, damage to the outer wall of the pipe fitting is avoided. For example, the technical solution recorded in the Chinese utility model patent with application number 202210979277.8, application date August 16, 2028, and patent name "A single-layer pipe mouth direct plug-in steel pipe palletizer", and the technical solution recorded in the Chinese utility model patent with application number 202222910548.2, application date November 2, 2022, and patent name "A steel pipe automatic palletizing assembly line".

[0005] The above straight-insert stacking technology has the following drawbacks: the distance between the two end manipulators is relatively fixed. Although there is a certain margin of translation distance when transferring the steel pipe, it is difficult to achieve docking with the pipe if the length of the pipe changes greatly. At the same time, the applicant also hopes to design a new structure of straight-insert pipe stacking device. Utility Model Content

[0006] The technical problem to be solved by the utility model is: to overcome the shortcomings of the prior art and provide a direct insertion pipe palletizer which is provided with a movable pipe insertion device on the surface of a base frame and realizes docking with pipe fittings through a plug of the pipe insertion device, and is suitable for stacking pipe fittings when the length of the pipe fittings varies in a large range without damaging the appearance of the pipe fittings.

[0007] The technical solution adopted by the utility model to solve its technical problems is: the straight-insertion pipe stacker includes two groups of plugs moving toward each other, and is characterized in that: it includes a base frame, a group of pipe insertion devices are respectively arranged at both ends of the base frame, the two groups of plugs are respectively installed at the pipe insertion devices at both ends, a movable guide rail is arranged on the surface of the base frame, at least one group of pipe insertion devices is slidably connected to the movable guide rail, and at least two groups of alignment devices for carrying pipe fittings and realizing tight arrangement of all pipe fittings are also arranged between the pipe insertion devices at both ends, and at least one group of alignment devices is slidably arranged on the movable guide rail.

[0008] Preferably, the intubation device includes a support column, on which an X-direction moving mechanism, a Y-direction moving mechanism and a Z-direction moving mechanism are provided, and a driving mechanism is also provided for driving the X-direction moving mechanism, the Y-direction moving mechanism and the Z-direction moving mechanism respectively. The plug is arranged on the X-direction moving mechanism, and the X-direction moving mechanism drives the plug to move axially along the pipe fitting.

[0009] Preferably, one group of intubation devices is a mobile intubation device, and the other group of intubation devices is a fixed intubation device. The bottom of the support column of the mobile intubation device is provided with a moving slider slidably connected to the moving guide rail, and the fixed intubation device is fixed to the base frame through the support column.

[0010] A plurality of alignment devices are arranged between the mobile cannula device and the fixed cannula device, and one of the alignment devices is fixedly connected to the mobile cannula device.

[0011] The bottom of the support column of the mobile intubation device is also provided with a moving motor for driving the mobile intubation device to slide along the moving guide rail.

[0012] Preferably, the alignment device includes a box body, a first lever and a second lever that move relatively are arranged on the top of the box body, a first lever driving mechanism connected to the first lever and a second lever driving mechanism connected to the second lever are arranged, and a pipe transfer assembly is also arranged on the side of the box body.

[0013] Preferably, a through groove is opened on the surface of the box body, the first lever passes through the through groove and is connected to the first lever driving mechanism in the box body, and the second lever passes through the through groove and is connected to the second lever driving mechanism in the box body.

[0014] Preferably, the pipe transfer assembly includes a transfer guide rail horizontally arranged on the side of the box, a transfer lifting mechanism is slidably installed on the transfer guide rail, a transfer translation cylinder is arranged in the box to drive the transfer lifting mechanism to slide, and a bearing plate for placing the pipe is arranged on the top of the transfer lifting mechanism.

[0015] Preferably, the transfer lifting mechanism includes a transfer lifting cylinder, which is slidably connected to the transfer guide rail and connected to the piston rod of the transfer translation cylinder, and the bearing plate is fixed to the piston rod of the transfer lifting cylinder.

[0016] Preferably, the plug has a vertical portion and a horizontal plug-in portion connected to the lower end of the vertical portion, and the vertical portion is fixed to the intubation device through a pressing plate.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] A movable pipe insertion device is arranged on the surface of the base frame. First, a group of pipe fittings are closely arranged by using the alignment device, and then the plug of the pipe insertion device is used to connect with the pipe fittings. The pipe fittings are transferred and stacked without damaging their appearance. This direct insertion pipe stacker can be used for stacking pipe fittings when the length of the pipe fittings varies over a wide range.

[0019] By setting up the alignment device, after a predetermined number of pipe fittings are arranged on the surface of the alignment device, the levers at both ends move relative to each other to make the pipe fittings in close contact, so as to facilitate the subsequent docking of the plug and the pipe fitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the front view of the straight-insert pipe palletizer.

[0021] Figure 2 This is a top view of the straight-insert pipe palletizer.

[0022] Figure 3 This is a front view of the pipe insertion device of the straight-insertion pipe palletizer.

[0023] Figure 4 for Figure 3 Right view of .

[0024] Figure 5 for Figure 3 Top view of the .

[0025] Figure 6 This is a top view of the alignment device of the in-line pipe palletizer.

[0026] Figure 7 for Figure 6 Bottom view of .

[0027] Figure 8 for Figure 7 Left view of .

[0028] Fig. 9 for Figure 3 A partial enlarged view of point A in the middle.

[0029] Wherein: 1, mobile intubation device 2, base frame 3, mobile alignment device 4, mobile guide rail 5, fixed alignment device 6, fixed intubation device 7, rack 8, lifting motor 9, lifting reducer 10, lifting sprocket box 11, lifting guide rail 12, lifting slider 13, lifting frame 14, translation screw 15, support arm 16, translation guide rail 17, intubation seat 18, intubation slider 19, intubation guide rail 20, plug 21, column 22, mobile slider 23, column bottom plate 24 , moving motor 25, gear 26, synchronous belt 27, translation motor 28, first lever 29, first lever cylinder 30, bearing plate 31, transfer guide rail 32, transfer base plate 33, transfer translation cylinder 34, box body 35, support plate 36, second lever cylinder 37, second lever 38, alignment slider 39, guide plate 40, guide rod 41, transfer lifting cylinder 42, translation frame 43, pressure plate 44, fixed seat 201, vertical part 202, horizontal plug-in part. DETAILED DESCRIPTION

[0030] Figures 1 to 9 It is the best embodiment of the utility model, and the following Figures 1 to 9 The utility model is further described.

[0031] like Figure 1~2 As shown, a straight insertion type pipe stacker includes a base frame 2 laid on the ground, and a movable guide rail 4 is laid on the front and back of the upper surface of the base frame 2, respectively. The movable guide rail 4 extends from one end of the base frame 2 to the other end thereof, and the length of the movable guide rail 4 is less than the length of the base frame 2. Insertion devices are arranged at both ends of the surface of the base frame 2, and an alignment device is arranged between the insertion devices. The pipe fittings are transferred to the surface of the base frame 2 through the alignment device, and the pipe fittings are operated. After a preset number of pipe fittings are aligned, the insertion devices on both sides respectively enter the pipe openings at both ends of the pipe fittings to realize the output of the pipe fittings.

[0032] The intubation device includes a mobile intubation device 1 and a fixed intubation device 6 arranged at both ends of the base frame 2, wherein the mobile intubation device 1 is clamped on the surface of the mobile guide rail 4 and is slidably connected to the mobile guide rail 4, and the fixed intubation device 6 is fixed to the end of the base frame 2. A plurality of alignment devices are arranged between the mobile intubation device 1 and the fixed intubation device 6, wherein the alignment device is divided into a mobile alignment device 3 and a fixed alignment device 5, wherein the mobile alignment device 3 is clamped on the surface of the mobile guide rail 4 and is slidably connected to the mobile guide rail 4, and one mobile alignment device 3 is fixedly connected to the mobile intubation device 1 through a connecting plate, and the two move synchronously. The mobile alignment device 3 is arranged in sequence close to the mobile intubation device 1 and toward one side of the fixed intubation device 6, and the fixed alignment device 5 is fixed on the surface of the base frame 2 and arranged close to the fixed intubation device 6.

[0033] like Figures 3-5 As shown, the mobile alignment device 3 is further described as an example. The mobile alignment device 3 includes a column 21, a column bottom plate 23 is arranged at the bottom of the column 21, and a plurality of moving sliders 22 are respectively arranged on both sides of the lower surface of the column bottom plate 23, and the moving sliders 22 on both sides are respectively clamped with two moving guide rails 4 on the surface of the bottom frame 2. A rack 7 is arranged on the side of one of the moving guide rails 4, and the rack 7 is arranged along the direction of the moving guide rail 4.

[0034] A moving motor 24 is arranged on the surface of the column bottom plate 23 at the bottom of the moving alignment device 3. A gear 25 is coaxially fixed to the motor shaft of the moving motor 24 after passing through the column bottom plate 23. The gear 25 is meshed with the rack 7. When the moving motor 24 rotates back and forth, the column 21 is reciprocated along the moving guide rail 4 through the mutually meshing gear 25 and rack 7.

[0035] A lifting guide rail 11 is vertically arranged on the side of the column 21 facing the fixed alignment device 5, and a lifting frame 13 is clamped on the surface of the lifting guide rail 11 through a lifting slider 12, and the lifting slider 12 is fixed to the back of the lifting frame 13. A lifting reducer 9 is arranged on the top of the column 21, and a lifting motor 8 is installed at the input end of the lifting reducer 9, and the motor shaft of the lifting motor 8 is coaxially fixed with the input shaft of the lifting reducer 9.

[0036] The output shaft of the lifting reducer 9 extends into the lifting sprocket box 10 and is coaxially fixed with the driving sprocket in the lifting sprocket box 10. The lifting reducer 9 is connected to the lifting frame 13 through a sprocket chain transmission mechanism known in the art to achieve the lifting of the lifting frame 13 along the lifting guide rail 11.

[0037] A support arm 15 is provided on the surface of the lifting frame 13, one end of the support arm 15 is fixed on the surface of the lifting frame 13, and the other end of the support arm 15 extends horizontally. A translation guide rail 16 is vertically provided on the side of the support arm 15 facing the fixed alignment device 5, and the translation guide rail 16 is provided along the arrangement direction of the support arm 15. Two translation guide rails 16 are provided in the vertical direction, and a translation frame 42 is slidably provided on the surface of the two translation guide rails 16, and a slider for sliding connection with the translation guide rail 16 is provided on the back of the translation frame 42.

[0038] A translation motor 27 is arranged on the side of the pillar 21, and a translation screw 14 is arranged horizontally on the surface of the support arm 15 through a bearing seat. One end of the translation screw 14 extends to the outside of the support arm 15 and is connected to the motor shaft of the translation motor 27 through a synchronous belt mechanism. A thread block is also threadedly connected to the translation screw 14, and the translation frame 42 extends to the thread block and is fixed to the thread block. Therefore, when the translation motor 27 is working, the translation screw 14 is driven to rotate through the synchronous belt mechanism, and the translation frame 42 is further driven to reciprocate along the arrangement direction of the translation guide rail 16.

[0039] Two intubation guide rails 19 are arranged side by side at the bottom of the translation frame 42. A tube intubation seat 17 is slidably installed at the lower part of the intubation guide rails 19 through an intubation slide block 18, and the intubation slide block 18 is fixed to the upper surface of the intubation seat 17. A plurality of plugs 20 are evenly arranged at the end of the intubation seat 17. An intubation cylinder (not shown) for pushing the intubation seat 17 to move is arranged at the bottom of the translation frame 42. The piston rod of the intubation cylinder is fixed to the intubation seat 17. When the piston rod of the intubation cylinder is output, the intubation seat 17 is pushed to extend outward along the direction of the intubation guide rails 19. When the piston rod of the intubation cylinder is reset, the intubation cylinder pushes the intubation seat 17 to reset along the direction of the intubation guide rails 19.

[0040] The mobile intubation device 1 and the fixed intubation device 6 are symmetrically arranged on the surface of the base frame 2. The structure of the mobile intubation device 1 is the same as that of the fixed intubation device 6. The only difference is that the bottom of the column 21 of the fixed intubation device 6 is directly fixed to the base frame 2 through the column bottom plate 23, and the mobile motor 24, gear 25 and mobile slider 22 are omitted and will not be repeated here.

[0041] like Figures 6-8 As shown, the alignment device is further explained by taking the mobile alignment device 3 as an example. The alignment device includes a box body 34, and a support plate 35 is respectively arranged on both sides of the bottom of the box body 34, and alignment sliders 38 for sliding connection with the movable guide rail 4 are respectively arranged at the bottom of the support plates 35 on both sides.

[0042] The first lever cylinder 29 and the second lever cylinder 36 are arranged opposite to each other in the upper part of the box body 34, and the piston rods of the first lever cylinder 29 and the second lever cylinder 36 are respectively facing the front and rear end surfaces of the box body 34. A through groove is respectively opened on the surface of the box body 34, and the two through grooves are arranged alternately. The first lever 28 and the second lever 37 are respectively arranged vertically in the two through grooves. The first lever 28 extends into the box body 34 and is connected to the piston rod of the first lever cylinder 29. The second lever 37 extends into the box body 34 and is connected to the piston rod of the second lever cylinder 36.

[0043] At the bottom of the box body 34, a transfer base plate 32 is horizontally extended, and a transfer guide rail 31 is arranged on the surface of the transfer base plate 32. The transfer lifting cylinder 41 is slidably connected to the transfer guide rail 31 through a slider at its bottom. A transfer translation cylinder 33 is also arranged in the box body 34. The piston rod of the transfer translation cylinder 33 extends outside the box body 34 and is fixed to the side of the transfer lifting cylinder 41.

[0044] The piston rod of the transfer lifting cylinder 41 is vertically upward, and a guide plate 39 is horizontally arranged on the top of the transfer lifting cylinder 41. A supporting plate 30 is arranged on the upper part of the guide plate 39. The piston rod of the transfer lifting cylinder 41 vertically upward penetrates the guide plate 39 and is fixed to the middle part of the lower surface of the supporting plate 30. A guide rod 40 is also respectively arranged on the front and rear sides of the supporting plate 30, and the two guide rods 40 respectively penetrate the guide plate 39 downward.

[0045] The fixed alignment device 5 and the mobile alignment device 3 are symmetrically arranged on the surface of the base frame 2. The structure of the fixed alignment device 5 is the same as that of the mobile alignment device 3. The only difference is that the box 34 of the fixed alignment device 5 is directly fixed to the base frame 2, which will not be described here. The mobile alignment device 3 can be electrically moved on the surface of the mobile guide rail 4 in the same manner as the mobile intubation device 1, or it can be directly moved on the surface of the mobile guide rail 4 by manual operation.

[0046] See also Fig. 9 The plug 20 in this embodiment has a vertical portion 201 and a horizontal plug-in portion 202 connected to the lower end of the vertical portion 201. A fixing seat 44 is provided on the intubation seat 17 of the intubation device, and a pressing plate 43 is also provided. The vertical portion 201 is provided between the fixing seat 44 and the pressing plate 43, and the vertical portion 201 is fixed to the intubation device through the pressing plate 43.

[0047] The specific working process and working principle are as follows:

[0048] For ease of expression, the movement along the length direction of the base frame 2, i.e. the axial direction of the pipe, is defined as the X direction, the movement of the object along the length direction of the support arm 15 is defined as the Y direction, and the movement of the object along the length direction of the column 21, i.e. the height direction, is defined as the Z direction.

[0049] First, the piston rods of all transfer and lifting cylinders 41 are output at the same time to lift a pipe fitting on the surface of the carrier plate 30 upwards, and then the piston rods of the transfer and translation cylinders 33 are output at the same time to transport the pipe fitting forward, and then the transfer and lifting cylinders 41 drive the carrier plate 30 to descend, so that the pipe fitting falls between the first lever 28 and the second lever 37, and the transfer and translation cylinders 33 drive the carrier plate 30 back to its original position. The first lever 28 pushes the pipe fittings toward the second lever 37 one by one, and the above steps are repeated to stack a preset number of pipe fittings on the surface of the box 34. Finally, the first lever 28 moves to its position as a reference, and then the second lever cylinder 36 drives the second lever 37 to move, driving all the pipe fittings on the surface of the box 34 to move toward the side of the first lever 28, so as to achieve the alignment of all the pipe fittings in the horizontal direction. When the number of pipe fittings on the surface of the box 34 is different, the lever cylinder can be driven by a linear motor to achieve precise control of the moving distance of the first lever 28 and the second lever 37.

[0050] When facing pipes of different lengths, the mobile motor 24 works to move the mobile intubation device 1 along the X direction. Since the pipes will not have different lengths in a short time when stacking the pipes, once the position of the mobile intubation device 1 is determined, the mobile intubation device 1 will no longer move before the length of the pipe is changed.

[0051] The lifting motor 8 is activated, driving the lifting frame 13 to move along the Z direction, so that the plug 20 is lowered to the same height as the middle of the pipe fitting. The motor or pipe inserting cylinder set on the upper part of the pipe inserting seat 17 is activated, driving the pipe inserting seat 17 to move along the X direction, so that the plug 20 is installed one by one into the port of the corresponding pipe fitting. At this time, the fixed pipe inserting device 6 located at the other end of the base frame 2 is synchronously activated, and the plug 20 therein is installed one by one into the other port of the corresponding pipe fitting. Then the lifting motor 8 in the mobile pipe inserting device 1 and the fixed pipe inserting device 6 is activated, so that the lifting frame 13 rises along the Z direction. Before or at the same time as the rise, the piston rods of the first lever cylinder 29 and the second lever cylinder 36 are activated at the same time and stay away from the pipe fitting to avoid hindering the rising process of the pipe fitting.

[0052] The translation motors 27 in the mobile intubation device 1 and the fixed intubation device 6 are synchronously operated to drive the translation frame 42 to move along the support arm 15 in the Y direction, thereby transferring all the pipes to the top of the far end collection device, and then the lifting motors 8 in the mobile intubation device 1 and the fixed intubation device 6 are operated to make the lifting frame 13 descend in the Z direction to send all the pipes to the collection station, and then the intubation cylinders in the mobile intubation device 1 and the fixed intubation device 6 are operated to withdraw the plug 20 from the port of the pipe. The translation motors 27 in the mobile intubation device 1 and the fixed intubation device 6 are simultaneously operated to drive the translation frame 42 to move along the support arm 15 in the Y direction and return to the alignment device, and so on.

[0053] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A straight-insert pipe palletizer, comprising two sets of plugs (20) moving towards each other, characterized in that: The invention comprises a base frame (2), a group of pipe insertion devices are respectively arranged at both ends of the base frame (2), two groups of plugs (20) are respectively installed at the pipe insertion devices at the two ends, a movable guide rail (4) is arranged on the surface of the base frame (2), at least one group of pipe insertion devices is slidably connected to the movable guide rail (4), at least two groups of alignment devices for carrying pipe fittings and realizing close arrangement of all pipe fittings are also arranged between the pipe insertion devices at the two ends, and at least one group of alignment devices is slidably arranged on the movable guide rail (4).

2. The in-line pipe palletizer according to claim 1, characterized in that: The intubation device comprises a support column, on which an X-direction moving mechanism, a Y-direction moving mechanism and a Z-direction moving mechanism are arranged, and a driving mechanism is also arranged for driving the X-direction moving mechanism, the Y-direction moving mechanism and the Z-direction moving mechanism to move respectively, the plug (20) being arranged on the X-direction moving mechanism, and the X-direction moving mechanism drives the plug (20) to move axially along the pipe.

3. The in-line pipe palletizer according to claim 1 or 2, characterized in that: One group of intubation devices is a mobile intubation device (1), and the other group of intubation devices is a fixed intubation device (6). A moving slider (22) slidably connected to a moving guide rail (4) is provided at the bottom of the support column of the mobile intubation device (1), and the fixed intubation device (6) is fixed to the base frame (2) via the support column.

4. The in-line pipe palletizer according to claim 3 is characterized in that: A plurality of alignment devices are provided between the mobile cannula device (1) and the fixed cannula device (6), and one of the alignment devices is fixedly connected to the mobile cannula device (1).

5. The in-line pipe palletizer according to claim 3 is characterized in that: A moving motor (24) is also provided at the bottom of the support column of the mobile intubation device (1) for driving the mobile intubation device (1) to slide along the moving guide rail (4).

6. The in-line pipe palletizer according to claim 1, characterized in that: The alignment device comprises a box body (34), a first lever (28) and a second lever (37) which are relatively movable are arranged on the top of the box body (34), a first lever driving mechanism connected to the first lever (28) and a second lever driving mechanism connected to the second lever (37) are arranged, and a pipe transfer assembly is also arranged on the side of the box body (34).

7. The in-line pipe palletizer according to claim 6, characterized in that: A through slot is provided on the surface of the box body (34); the first lever (28) passes through the through slot and extends into the box body (34) to be connected to the first lever driving mechanism; the second lever (37) passes through the through slot and extends into the box body (34) to be connected to the second lever driving mechanism.

8. The in-line pipe palletizer according to claim 6, characterized in that: The pipe transfer assembly comprises a transfer guide rail (31) horizontally arranged on the side of a box body (34), a transfer lifting mechanism is slidably mounted on the transfer guide rail (31), a transfer translation cylinder (33) is arranged in the box body (34) for driving the transfer lifting mechanism to slide, and a bearing plate (30) for placing pipes is arranged on the top of the transfer lifting mechanism.

9. The in-line pipe palletizer according to claim 8, characterized in that: The transfer lifting mechanism comprises a transfer lifting cylinder (41), the transfer lifting cylinder (41) is slidably connected to the transfer guide rail (31), and is connected to the piston rod of the transfer translation cylinder (33), and the bearing plate (30) is fixed to the piston rod of the transfer lifting cylinder (41).

10. The in-line pipe palletizer according to claim 1, characterized in that: The plug (20) comprises a vertical portion (201) and a horizontal plug-in portion (202) connected to the lower end of the vertical portion, and the vertical portion (201) is fixed to the intubation device via a pressing plate (43).

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