Straight falling and tumbling preventing device

By designing a anti-direction drop-off series device and adopting a string-bar structure with a folded linear trajectory, the problem of bagged medicinal tablets falling directly in the series barrel is solved, achieving good safety, low dust pollution and efficient discharge effects.

CN223188156UActive Publication Date: 2025-08-05CHENGDU XINYUECHENG IND CO LTD
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Patent Information

Application Number
CN202422202449.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-09
Publication Date
2025-08-05
Estimated Expiration
2034-09-09

AI Technical Summary

Technical Problem

Traditional Chinese herbal medicines, especially bagged medicinal medicines, fall vertically in a free-fall manner in a string of barrels, which is easy to cause damage and dust pollution, and the prior art cannot effectively solve it.

Method used

A straight-down-falling skewer device is designed, and the string-skewer segment structure with a folded linear trajectory is used to slow down and slide the bagged medicinal tablets in the string trajectory are slowed down and slide the bottom discharge port through the combination of the top layer, bottom layer and middle layer string-skewer segments, ensuring that the medicinal tissues slow down and slide to the bottom discharge port with a folded linear trajectory in the string trajectory is slowed down and dropped to avoid falling directly.

Benefits of technology

It has achieved good safety, low dust pollution and efficient discharge of bagged medicinal tablets, which has reduced the risk of medicinal materials and dust pollution, and improved work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

An anti-straight-falling tumbling barrel device is characterized in that a top-layer standard tumbling barrel section, a middle-layer standard tumbling barrel section and a bottom-layer tumbling barrel section are connected end to end to form the tumbling barrel device, each of the top-layer standard tumbling barrel section, the middle-layer standard tumbling barrel section and the bottom-layer tumbling barrel section is formed by connecting a left inclined downward square barrel body and a right inclined downward square barrel body with the same inclination angle end to end, and the left inclined downward square barrel body is provided with a material taking opening used for taking materials from a conveying belt. And a material baffle is arranged in the left inclined downward cylinder body and is opposite to the material taking opening along the vertical direction. And an upper striker plate and a lower striker plate are arranged in the right inclined downward square barrel body of the bottom-layer tumbling barrel section along the vertical direction over against the upper material taking port and the lower material taking port. The tumbling barrel device is installed on the medicine cabinet frame body through a triangular rectangular pipe supporting frame. The bagged medicinal material decoction piece conveying device has the advantages of being good in safety, small in pollution, high in medicine discharging efficiency and the like.
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Description

Technical Field

[0001] The utility model relates to a tube feeding device, in particular to a tube feeding device for preventing a tube from falling directly, which is used for an intelligent Chinese medicine cabinet. Background Art

[0002] Traditional Chinese medicine is extensive and profound. Chinese medicine prescriptions are usually only targeted at specific patients and diseases. The effects of the same medicine in different prescriptions are also very different. The traditional important medicine dispensing process includes: prescription writing, prescription review, medicine picking and preparation, proofreading, and medicine distribution. At present, almost all Chinese medicine pharmacies retain the traditional manual preparation method, and important cabinets usually store hundreds of Chinese medicinal materials, which are stored in thousands of medicine boxes. This makes the medicine picking process of Chinese medicine pharmacists very time-consuming, labor-intensive and error-prone.

[0003] Workers at traditional Chinese medicine hospitals have made some useful explorations in the intelligentization of Chinese medicine cabinets, such as "An Intelligent Chinese Medicine Cabinet for Traditional Chinese Medicine" (CN215382438): The bottom of the Chinese medicine cabinet is a medicine cabinet, and the upper part is a medicine storage cabinet. The medicine storage cabinet is divided into several medicine boxes by baffles. The medicine cabinet is connected to the medicine box by sliding inside. The medicine box is equipped with an LCD screen to display patient information and prescription information, making it easier to retrieve medicine.

[0004] Another example is the "Intelligent Traditional Chinese Medicine Cabinet Based on PLC Control" (CN215776883): By setting a PLC module on the traditional Chinese medicine cabinet, the PLC module controls the corresponding medicine cabinet's medicine-dispensing indicator light to turn on according to the prescription, making it convenient for traditional Chinese medicine pharmacists to adjust and dispense medicines.

[0005] The above patent document is only an improvement for the manual dispensing and preparing process, and is not suitable for dispensing and picking medicines mainly based on bulk medicinal materials and / or medicinal materials in small packaging bags through the combination of different unit medicine cabinets.

[0006] After being crushed and measured in the unit medicine cabinet, the Chinese herbal medicine slices are output to the belt conveyor by the metering push-turning device, and then sent to the stringing drum by the conveyor belt of the belt conveyor. The Chinese herbal medicine slices descend through the stringing drum to the loading tray of the transport trolley below, and finally transported out by the transport trolley.

[0007] Chinese herbal medicine slices, especially bagged herbal medicine slices, fall vertically in a free fall manner in the string tube, which will cause damage to the bagged herbal medicine slices. Secondly, there is also the problem of dust pollution generated by the herbal medicine slices during the falling process. Utility Model Content

[0008] The utility model aims to provide a device for preventing straight-falling stringing tubes with good safety, low dust pollution and high discharging efficiency, which aims to make the bagged medicinal materials slices slide down slowly in the stringing tube along a broken line trajectory to the bottom discharge port.

[0009] The purpose of the utility model is achieved in this way: an anti-straight-fall string barrel device, a top-level standard string barrel section and a bottom-level string barrel section installed on the medicine cabinet frame are connected in sequence from top to bottom so that the bagged medicinal materials fall from the top feeding port and then perform a decelerated sliding motion along a broken-line trajectory, and finally discharge from the bottom discharge port; the top-level standard string barrel section structure is: it is composed of a left-slanting downward square cylinder and a right-slanting downward square cylinder with the same inclination angle, which are connected end to end and integrated, and a horizontal plate of the string barrel section cover is fixed to the horizontal top of the left-slanting downward square cylinder by a screw, and the bent plate of the string barrel section cover is buckled on the feed port of the rear inclined plate of the left-slanting downward square (rectangular, the same below) cylinder, and the vertical opening on the upper front side of the left-slanting downward square cylinder serves as a feeding port, which is connected to the upper conveyor belt installed on the medicine cabinet frame to take materials, and a baffle plate is fixed on the inner wall of the left-slanting downward square cylinder in the vertical direction facing the feeding port, and the bottom discharge port of the right-slanting downward square cylinder is used to connect with the bottom string barrel section The feed port three is connected by a sealing ring or welding; the bottom string barrel structure is: it is composed of a third left oblique downward square cylinder and a third right oblique downward square cylinder connected end to tail, the vertical opening on the front side of the upper part of the third left oblique downward square cylinder serves as an upper feeding port, and the upper feeding port is connected to the middle conveyor belt installed on the medicine cabinet frame to take materials, the upper rear inclined opening on the upper part of the third left oblique downward square cylinder serves as a feed port three, which is used to be connected to the discharge port one of the top standard string barrel section through a sealing ring or welding, the horizontal opening at the bottom of the third right oblique downward square cylinder is the bottom discharge port three, the vertical opening at the bottom of the third right oblique downward square cylinder is the lower feeding port, and the lower feeding port is connected to the bottom conveyor belt installed on the medicine cabinet frame to take materials, the inner wall of the third left oblique downward square cylinder is fixed with an upper baffle plate in the vertical direction opposite to the upper feeding port, and the inner wall of the third right oblique downward square cylinder is fixed with a lower baffle plate in the vertical direction opposite to the lower feeding port.

[0010] An intermediate layer standard string barrel section is also connected between the top layer standard string barrel section and the bottom layer string barrel section. The intermediate layer standard string barrel section is composed of a second left oblique downward square barrel body and a second right oblique downward square barrel body connected end to end and integrated. The vertical opening on the upper front side of the second left oblique downward square barrel body serves as a material taking port for connecting with the middle and upper layer conveyor belt to take materials. A baffle plate is fixed on the inner wall of the second left oblique downward square barrel body in the vertical direction opposite to the material taking port. The inclined opening on the rear side of the second left oblique downward square barrel body serves as a feed port 2, which is used to be connected to the discharge port 1 of the top layer standard string barrel section through a sealing ring or welding. The bottom discharge port 2 of the second right oblique downward square barrel body is connected to the feed port of the bottom layer string barrel section through a sealing ring or welding.

[0011] The cross-sections of the top, middle, and bottom standard string barrel sections are all identical rectangles. The left-slanting downward-facing square barrel section of the top standard string barrel section has the same inclination angle as the second left-slanting downward-facing square barrel section of the middle standard string barrel section and the third left-slanting downward-facing square barrel section of the bottom standard string barrel section, and the angle between the three and the vertical direction is 30 degrees.

[0012] Compared with the prior art, the present invention has the following technical features:

[0013] 1. Smoothness: The anti-straight-fall string tube section is designed with enough space to allow the bagged medicinal materials to slide in its cavity, ensuring the smooth flow of the cavity and preventing blockage.

[0014] 2. Safety: The anti-falling barrel stringing device adopts a zigzag design, which causes the bagged medicinal herbs to slide down along a zigzag trajectory in the barrel stringing section of the anti-falling barrel stringing device to the discharge port of the bottom anti-falling barrel stringing section and enter the loading tray. This design, through the reasonable slope design of the folding plate within the barrel stringing section, slows the speed of the bagged medicinal herbs in a multi-fold manner, ensuring that the bagged medicinal herbs will not be damaged by falling from too high a height, thus providing better safety.

[0015] 3. Efficient and convenient discharging: Since the bagged medicinal slices will not produce dust or other pollutants in the process of falling,

[0016] There is no need to clean the medicinal materials every time they are transported, which greatly improves work efficiency and greatly reduces the complexity of the design.

[0017] 4. Easy maintenance: Due to the simple structural design and fewer parts, maintenance is minimal, making it convenient and worry-free to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 and Figure 3 are the main view and stereoscopic view of the standard string barrel section respectively.

[0019] Figure 2 is a cross-sectional view of Figure 1 along line BB.

[0020] Figure 4 and Figure 6 are the main view and stereoscopic view of the bottom string tube section respectively.

[0021] FIG5 is a cross-sectional view of FIG4 along line AA.

[0022] Figure 7 and Figure 8 are the front view and stereoscopic view of the standard string tube section and the bottom string tube section installed on the medicine cabinet frame respectively.

[0023] Figures 9 and 10 are enlarged views of part A and part B of Figure 8, respectively.

[0024] Figures 11 and 12 are schematic diagrams and stereoscopic diagrams of the anti-straight falling material structure of the string tube section shown in Figures 1 and 4 respectively.

[0025] FIG13 is a schematic diagram showing the combination of the top layer standard string barrel section, the middle layer standard string barrel section (more than one), and the bottom layer string barrel section. DETAILED DESCRIPTION

[0026] In Figure 11, there is a loading tray 12 (carried by a trolley), an upper conveyor belt 8, a middle conveyor belt 10, and a bottom conveyor belt 11. Figures 3, 5, 6, and 11 show a device for preventing straight-falling barrel stringing, in which a top-level standard barrel stringing section 1 and a bottom-level barrel stringing section 2 installed on a medicine cabinet frame 3 are connected in sequence from top to bottom, so that the bagged medicinal material slices fall from the top feeding port 1a and then perform a decelerated downward movement along a broken line trajectory, and finally discharge from the bottom discharge port 2d; the top-level standard barrel stringing section structure is: it is composed of a left-slanting downward square cylinder and a right-slanting downward square cylinder with the same inclination angle, connected end to end, and the horizontal plate of the barrel stringing section cover 13 is fixed to the horizontal top of the left-slanting downward square cylinder by screws 14, and the bent plate of the barrel stringing section cover is buckled on the feed port 1c of the rear inclined plate of the left-slanting downward square cylinder. On the upper part, the vertical opening on the front side of the left oblique downward square cylinder serves as a material taking port 1a, which is connected to the upper conveyor belt 8 installed on the medicine cabinet frame to take materials. A baffle plate 9a is fixed on the inner wall of the left oblique downward square cylinder in the vertical direction opposite to the material taking port 1a. The discharge port 1b at the bottom of the right oblique downward square cylinder is used as a material feeding port 3 2c connected to the bottom string barrel section 2 through a sealing ring 1d or welded; the bottom string barrel structure is: composed of a third left oblique downward square cylinder and a third right oblique downward square cylinder connected end to end and integrated, the vertical opening on the upper front side of the third left oblique downward square cylinder serves as an upper material taking port 2a, and the upper material taking port is connected to the middle conveyor belt 10 installed on the medicine cabinet frame. For material collection, the inclined opening on the rear upper side of the third left oblique downward square cylinder serves as a feed port three 2c, which is used to be connected to the discharge port one 1b of the top standard string cylinder section through a sealing ring 1d or welded, the horizontal opening at the bottom of the third right oblique downward square cylinder is the bottom discharge port three 2d, and the vertical opening at the lower part of the third right oblique downward square cylinder is the lower material collection port 2b, which is connected to the bottom conveyor belt 11 installed on the medicine cabinet frame for material collection, and an upper baffle plate 9b is fixed on the inner wall of the third left oblique downward square cylinder facing the upper material collection port in the vertical direction, and a lower baffle plate 9c is fixed on the inner wall of the third right oblique downward square cylinder facing the lower material collection port in the vertical direction.

[0027] Referring to Figure 13, an intermediate layer standard string barrel section 15 is also connected between the top layer standard string barrel section and the bottom layer string barrel section. The intermediate layer standard string barrel section is composed of a second left oblique downward square cylinder and a second right oblique downward square cylinder connected end to end. The vertical opening on the upper front side of the second left oblique downward square cylinder serves as a material taking port for connecting with the middle and upper layer conveyor belt to take materials. A baffle plate is fixed on the inner wall of the second left oblique downward square cylinder in the vertical direction opposite to the material taking port. The inclined opening on the rear side of the second left oblique downward square cylinder serves as a feed port 2, which is used to be connected to the discharge port 1b of the top layer standard string barrel section through a sealing ring or welding. The bottom discharge port 2 of the second right oblique downward square cylinder is connected to the feed port 2c of the bottom layer string barrel section through a sealing ring or welding.

[0028] The cross-sections of the top, middle, and bottom standard string barrel sections are all identically rectangular. The left-slanting downward-facing square barrel section of the top standard string barrel section, the second left-slanting downward-facing square barrel section of the middle standard string barrel section, and the third left-slanting downward-facing square barrel section of the bottom standard string barrel section have the same inclination angle, and the angle between the three and the vertical direction is 25 to 35 degrees, preferably 30 degrees.

[0029] The tube stringing device, consisting of the top-layer standard tube stringing sections, the middle-layer standard tube stringing sections, and the bottom-layer standard tube stringing sections, is removably mounted on the medicine cabinet frame 3. Several triangular rectangular tube support frames located on the left and right sides of the tube stringing device are fixed to the cabinet frame via screws 7. The horizontal plate of the L-shaped mounting fixture 5 corresponding to each triangular rectangular tube support frame is mounted on the top surface of the triangular rectangular tube support frame via screws 6. The vertical plate of the L-shaped mounting fixture is welded to the outer wall of the tube stringing device (Figures 9 and 10).

[0030] The medicine cabinet frame consists of two rows, each row consists of several support frames, and each support frame is composed of several horizontal rods welded between two vertical support rods; the upper conveyor belt, the middle conveyor belt and the bottom conveyor belt are installed from top to bottom between the two rows of support frames.

[0031] In Figure 1, the material baffle is welded inside the zigzag cassette to prevent material from falling from the feed port onto the conveyor belt at the reclaim port. The L-shaped mounting bracket is welded to each side of the cassette to secure it. Together, these three components form a drop-prevention cassette section.

[0032] In Figure 13, as the cabinet height increases, the cover on the standard skewer can be removed to expose the feed opening and then installed on the bottom skewer. Similarly, the number of standard skewers can be increased to increase the feed height. Finally, the cover is placed on the topmost standard skewer to seal the feed opening and prevent dust and impurities from entering.

[0033] 1. Composition:

[0034] The composition of the anti-straight-fall string tube device: It consists of an anti-straight-fall string tube section, a string tube section cover, a triangular rectangular tube support frame, an L-shaped installation fixture, etc.

[0035] 2. Components and functions:

[0036] 1. Anti-straight-fall stringing section: The anti-straight-fall stringing section is a zigzag box structure consisting of a zigzag box and a baffle. The zigzag box is designed with enough space to accommodate the sliding of bagged medicinal herbs and slices inside. The baffle is located on the inner side of the top feed opening of the stringing box to prevent bagged medicinal herbs and slices from sliding off the upper stringing section and splashing out of the feed opening.

[0037] There are two types of anti-straight-fall stringing tube sections: the bottom anti-straight-fall stringing tube section and the standard anti-straight-fall stringing tube section. The bottom anti-straight-fall stringing tube section is installed at the bottom, and the standard anti-straight-fall stringing tube section is installed on top of the bottom anti-straight-fall stringing tube section. Its function is: through the specific zigzag structure design, the bagged medicinal herbs and slices will decelerate and slide along the zigzag trajectory after falling into the stringing tube section, thereby reducing the possibility of the bagged medicinal herbs and slices being damaged during the sliding process, and at the same time reducing the noise caused by the bagged medicinal herbs and slices during the falling process.

[0038] 2. String barrel section cover: The string barrel section cover is installed on the top of the uppermost string barrel section to prevent dust and other impurities from entering the string barrel section from the top.

[0039] 3. Triangular rectangular tube support frame: The triangular rectangular tube support frame is mounted and fixed to the frame of the medicine cabinet. The anti-straight-down tube device is then mounted and fixed to the triangular rectangular tube support frame using L-shaped mounting fixtures. The triangular rectangular tube support frame provides support for the anti-straight-down tube device.

[0040] 4. L-shaped mounting fixtures: The L-shaped mounting fixtures are installed and fixed on both sides of the string tube section, and play the role of installing and fixing the anti-straight-fall string tube device on the triangular rectangular tube support frame.

[0041] 2. Working Principle

[0042] 1. Equipment Assembly: First, secure the triangular rectangular tube support frame to the medicine cabinet frame in the correct position. Then, secure the bottom anti-fall string section, pre-installed with L-shaped mounting fixtures, to the triangular rectangular tube support frame. Next, secure the stack of standard anti-fall string sections, pre-installed with L-shaped mounting fixtures, to the triangular rectangular tube support frame. Secure the upper and lower sections with connectors. Finally, secure the section cover to the top section. At this point, the anti-fall string section assembly is complete.

[0043] When installing each string barrel section, the feeding port of the string barrel section must be aligned with the conveyor belt on the medicine cabinet frame, and the conveyor belt should be extended into a small part of the feeding port of the string barrel section, and the extended part of the conveyor belt should be located at the lower part of the feeding port of the string barrel section, but the lower part of the conveyor belt cannot rub against the lower end of the feeding port of the string barrel section.

[0044] 2. Working process:

[0045] The anti-straight-fall stringing device can be put into operation after it is assembled. The bagged medicinal slices taken out of the medicine cabinet equipment are delivered to the feeding port of the stringing section of the anti-straight-fall stringing device through the conveyor belt. Then the bagged medicinal slices slide down in the stringing section of the anti-straight-fall stringing device at a decelerated speed in a broken line trajectory to the discharge port of the bottom anti-straight-fall stringing section, and then enter the loading tray at the lower end. Specifically, an anti-straight-fall stringing device consisting of a layer of standard anti-straight-fall stringing section and a bottom anti-straight-fall stringing section is used as an example to illustrate:

[0046] The upper conveyor belt delivers the bagged medicinal slices in the sliding process: after the upper conveyor belt delivers the bagged medicinal slices into the feeding port of the standard anti-straight-fall stringing barrel section, the bagged medicinal slices slide down along the upper folding plate of the inner folding plate of the standard anti-straight-fall stringing barrel section, and after the bagged medicinal slices slide down to the upper folding plate that is separated from the inner folding plate, they fall in a parabolic manner to the lower folding plate of the outer folding plate of the standard anti-straight-fall stringing barrel section; the bagged medicinal slices continue to slide down on the lower folding plate of the outer folding plate of the standard anti-straight-fall stringing barrel section, and the bagged medicinal slices slide down to the upper folding plate that is separated from the standard anti-straight-fall stringing barrel section. After the outer folding plate is folded down, it falls parabola-like to the upper folding plate of the inner folding plate of the bottom anti-straight-fall stringing section; the bagged medicinal slices slide down along the upper folding plate of the inner folding plate of the bottom anti-straight-fall stringing section, and after the bagged medicinal slices slide down to the upper folding plate that is separated from the inner folding plate, they fall parabola-like to the lower folding plate of the outer folding plate of the bottom anti-straight-fall stringing section; the bagged medicinal slices slide down along the lower folding plate of the outer folding plate of the bottom anti-straight-fall stringing section, and after the bagged medicinal slices slide down to the lower folding plate that is separated from the outer folding plate, they fall parabola-like to the loading tray below. This completes the descent process of the bagged medicinal slices delivered by the upper conveyor belt.

[0047] The middle conveyor belt delivers the bagged medicinal slices down the following path: After the middle conveyor belt delivers the bagged medicinal slices into the upper feeding port of the bottom anti-straight-fall stringing section, the bagged medicinal slices slide down along the upper folding plate of the inner folding plate of the bottom anti-straight-fall stringing section. After the bagged medicinal slices slide down to the upper folding plate that is separated from the inner folding plate, they fall in a parabolic manner onto the lower folding plate of the outer folding plate of the bottom anti-straight-fall stringing section. After the bagged medicinal slices slide down along the lower folding plate of the outer folding plate of the bottom anti-straight-fall stringing section, they slide down to the lower folding plate that is separated from the outer folding plate, and fall in a parabolic manner onto the loading tray below. This completes the descending process of the bagged medicinal slices delivered by the middle conveyor belt.

[0048] The bottom conveyor belt delivers the bagged medicinal slices down the descent process: After the bottom conveyor belt delivers the bagged medicinal slices into the lower feeding port of the bottom anti-fall stringing tube section, the bagged medicinal slices fall directly in a parabolic manner to the loading tray below. This completes the descent process of the bottom conveyor belt delivering the bagged medicinal slices.

Claims

1. A device for preventing a straight-down tube from falling, characterized in that: A top standard string barrel section (1) and a bottom string barrel section (2) mounted on the medicine cabinet frame (3) are connected in sequence from top to bottom, so that the bagged medicinal material pieces fall in from the top material taking port (1a) and then perform a decelerated downward movement along a broken line trajectory, and finally discharge from the bottom material discharging port (2d); The top standard string barrel section structure is as follows: it is composed of a left oblique downward square cylinder and a right oblique downward square cylinder with the same inclination angle, which are connected end to end and integrated. The horizontal plate of the string barrel section cover (13) is fixed on the horizontal top of the left oblique downward square cylinder by screw one (14). The bent plate of the string barrel section cover is buckled on the feed port one (1c) of the rear oblique plate of the left oblique downward square cylinder. The vertical opening on the front side of the upper part of the left oblique downward square cylinder serves as a material extraction port (1a). The material extraction port is connected with the upper conveyor belt (8) installed on the medicine cabinet frame to extract materials. A baffle plate (9a) is fixed on the inner wall of the left oblique downward square cylinder in the vertical direction facing the material extraction port (1a). The discharge port one (1b) at the bottom of the right oblique downward square cylinder is used to connect with the feed port three (2c) of the bottom string barrel section (2) through a sealing ring (1d) or welded; the bottom string barrel structure is as follows: it is composed of a third left oblique downward square cylinder and a third right oblique downward square cylinder. The cylinder is connected from head to tail and is integrated. The vertical opening on the front side of the upper part of the third left oblique downward square cylinder serves as an upper material removal port (2a), which is connected to the middle conveyor belt (10) installed on the medicine cabinet frame for material removal. The inclined opening on the rear side of the upper part of the third left oblique downward square cylinder serves as a feed port three (2c), which is used to be connected to the discharge port one (1b) of the top standard string cylinder section through a sealing ring (1d) or welded. The horizontal opening at the bottom of the third right oblique downward square cylinder serves as a bottom discharge port three (2d). The vertical opening at the bottom of the third right oblique downward square cylinder serves as a lower material removal port (2b), which is connected to the bottom conveyor belt (11) installed on the medicine cabinet frame for material removal. An upper material stopper (9b) is fixed to the inner wall of the third left oblique downward square cylinder in a vertical direction opposite to the upper material removal port. A lower material stopper (9c) is fixed to the inner wall of the third right oblique downward square cylinder in a vertical direction opposite to the lower material removal port.

2. The anti-straight-fall device according to claim 1, characterized in that: An intermediate layer standard string barrel section (15) is also connected between the top layer standard string barrel section and the bottom layer standard string barrel section. The intermediate layer standard string barrel section is composed of a second left oblique downward square barrel body and a second right oblique downward square barrel body connected end to end and integrated. The vertical opening on the front side of the upper part of the second left oblique downward square barrel body serves as a material taking port for connecting with the middle and upper layer conveyor belt to take materials. A baffle plate is fixed on the inner wall of the second left oblique downward square barrel body in the vertical direction opposite to the material taking port. The inclined opening on the rear side of the second left oblique downward square barrel body serves as a feed port 2, which is used to be connected to the discharge port 1 (1b) of the top layer standard string barrel section through a sealing ring or welding. The bottom discharge port 2 of the second right oblique downward square barrel body is connected to the feed port (2c) of the bottom layer string barrel section through a sealing ring or welding.

3. The anti-straight-fall tube device according to claim 1 or claim 2, characterized in that: The cross sections of the top layer standard string barrel section, the middle layer standard string barrel section and the bottom layer standard string barrel section are all the same rectangular.

4. The anti-straight-fall device according to claim 3, characterized in that: The left-slanting downward square cylinder of the top standard string barrel section has the same inclination angle as the second left-slanting downward square cylinder of the middle standard string barrel section and the third left-slanting downward square cylinder of the bottom standard string barrel section, and the angle between the three and the vertical direction is 30 degrees.

5. The device for preventing a tube from falling directly according to claim 4, characterized in that: The tube stringing device consisting of the top layer standard tube stringing section, the middle layer standard tube stringing section and the bottom layer standard tube stringing section is detachably mounted on the medicine cabinet frame (3): a plurality of triangular rectangular tube support frames located on the left and right sides of the tube stringing device are fixed to the medicine cabinet frame via screw two (7), a horizontal plate of an L-shaped mounting fixture (5) corresponding to each triangular rectangular tube support frame is mounted on the top surface of the triangular rectangular tube support frame via fixing screw three (6), and a vertical plate of the L-shaped mounting fixture is welded and fixed to the outer wall of the tube stringing device.

6. The device for preventing a tube from falling directly according to claim 4, characterized in that: The medicine cabinet frame consists of two rows, each row consists of several support frames, and each support frame is composed of several horizontal rods welded between two vertical support rods; the upper conveyor belt, the middle conveyor belt and the bottom conveyor belt are installed from top to bottom between the two rows of support frames.