A pneumatic transport sample delivery apparatus
By designing a bidirectional open sample cylinder and utilizing compressed air for transport, the problem of high labor intensity caused by unidirectional opening of the sample cylinder in the pneumatic conveying system was solved, realizing convenient operation and efficient delivery of the sample cylinder.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHOUGANG CHANGZHI IRON & STEEL
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-16
AI Technical Summary
In existing pneumatic conveying systems, the sample cylinder adopts a one-way opening design, which leads to high labor intensity and increased workload for the personnel handling the delivery and receiving of samples. Furthermore, φ12-16mm samples need to be delivered for testing in two separate trips, making the operation cumbersome.
The sample cylinder is designed with a two-way opening. The cap is connected by internal and external threads and is made of metal and rubber. The thin-walled design increases the volume. The two ends of the sample cylinder open in the same way and are transported using compressed air.
The sample extraction process has been simplified, reducing the workload of operators, improving work efficiency, enabling single-sample delivery for φ12-16mm samples, and reducing operation time.
Smart Images

Figure CN224362093U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pneumatic feeding technology, specifically a pneumatic conveying sample feeding device. Background Technology
[0002] A pneumatic conveying system for reinforcing bars is an important device for long-distance transport of reinforcing bar samples. Pneumatic sample delivery utilizes the energy of gas within a pipeline to propel the sample along a designated route. During operation, on-site inspectors place the collected sample into a sample cylinder, which is then transported from the pipeline to the physics laboratory via the pneumatic system, using the principle of high-pressure air propulsion. Considering the reinforcing bar sample is approximately 520mm long, the sample cylinder, upon reaching the receiving / discharging point on one side, needs to be rotated 90 degrees vertically by a flipping device for subsequent operations. However, because the sample cylinder has a single-sided opening design, the receiving operator must completely remove the cylinder after each receipt to open the lid and retrieve the sample.
[0003] The sample tubes weigh 5.2 kg net and can hold three φ20mm samples, with a total sample weight of approximately 10 kg. Assuming two tubes are sent for testing per batch, there are about 60 batches per shift, meaning operators handle a staggering 1.2 tons per shift, resulting in extremely high labor intensity. Furthermore, due to the limited volume of the sample tubes, even samples with dimensions of φ12-16mm require two separate tests per batch, making the process cumbersome and inconvenient.
[0004] Several problems exist in the use of this pneumatic conveying system. First, because the sample cylinder uses a one-way opening mechanism, operators on both the sending and receiving sides must perform a series of operations each time, including removing the sample cylinder, loading and unloading samples, and tightening the cap, which not only increases workload but also greatly increases labor intensity. Second, the small volume of the sample cylinder means that samples with a diameter of φ12-16mm need to be sent for testing in two separate trips, which also increases workload and operational difficulty. These problems, to some extent, affect work efficiency and ease of operation. Utility Model Content
[0005] The purpose of this utility model is to provide a pneumatically driven sample delivery device to solve the problem mentioned in the background art, where the sample cylinder uses a one-way opening mechanism, requiring operators at both the submitting and receiving sides to perform a series of operations such as removing the sample cylinder, loading and unloading samples, and tightening the cap each time, which not only increases workload but also greatly increases labor intensity. To achieve the above objective, this utility model provides the following technical solution: a pneumatically driven sample delivery device, including a delivery pipe, with loading and unloading ports on both the left and right sides of the delivery pipe;
[0006] The system also includes a sample holding assembly, which comprises a sample cylinder located within the inner cavity of the delivery tube. The inner cavity of the sample cylinder contains a receiving chamber. Openings are located on the upper and lower sides of the sample cylinder. An internal thread is fixedly provided on the side of the receiving chamber closest to the opening. Both ends of the sample cylinder are designed identically and use the same opening method. When staff take samples, they can directly unscrew the cap, reducing the steps required to remove the sample cylinder, saving operation time, ensuring convenient and consistent operation, and improving work efficiency.
[0007] More preferably, a cylindrical cover is provided on one side of the opening, and an external thread is fixedly provided on the outer side of the cylindrical cover, wherein the external thread and the internal thread are adapted to each other.
[0008] In a further preferred embodiment, the cylinder cap is connected by an external thread and an internal thread, and a rubber layer is fixedly connected to one side of the cylinder cap. The cap is composed of a metal cap and rubber, which not only ensures the robustness and durability of the sample cylinder, but also improves the shock resistance and sealing effect of the sample cylinder. The bidirectional open sample cylinder is redesigned, and the thin-wall design increases the volume of the sample cylinder without changing the original transmission pressure, so that φ12-16mm samples can be transmitted in a single time, shortening the time for testing and improving efficiency.
[0009] More preferably, the conveying pipe has a conveying cavity inside, and a sample delivery device one is fixedly connected to the outer side of the conveying pipe near the pick-up and drop-out port, and a sample delivery device two is fixedly connected to the outer side of the conveying pipe near the other side of the pick-up and drop-out port. Both the sample delivery device one and the sample delivery device two are equipped with a wind power system for conveying the sample cylinder.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] In this invention, the two ends of the sample tube are designed to be identical and use the same opening method. When staff take samples, they can directly unscrew the tube cap, reducing the steps required to remove the sample tube, saving operation time, ensuring convenient and consistent operation, and improving work efficiency.
[0012] In this invention, the tube cap is composed of a metal cap and rubber, which not only ensures the sturdiness and durability of the sample tube, but also improves the shock resistance and sealing effect of the sample tube. The redesigned bidirectional open sample tube, without changing the original transmission pressure, increases the sample tube volume with its thin-wall design, allowing φ12-16mm samples to be transmitted in a single batch, shortening the testing time and improving efficiency. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2This is a three-dimensional structural diagram of the sample cylinder of this utility model;
[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the conveying pipe of this utility model;
[0016] Figure 4 This is a three-dimensional enlarged structural diagram of the cylindrical cover of this utility model;
[0017] Figure 5 This is a schematic diagram of the sample holding component structure of this utility model.
[0018] In the diagram: 1. Delivery pipe; 2. Inlet / outlet; 3. Sample container assembly; 301. Sample cylinder; 302. Receiving cavity; 303. Opening; 304. Internal thread; 305. Cylinder cap; 306. External thread; 307. Rubber layer; 4. Delivery cavity; 5. Sample delivery device one; 6. Sample delivery device two; Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figures 1-5 This utility model provides a technical solution: a pneumatically driven sample delivery device, including a delivery pipe 1, with pick-up and drop-off ports 2 on the left and right sides of the delivery pipe 1;
[0021] It also includes a sample holding assembly 3, which includes a sample cylinder 301 located in the inner cavity of the delivery tube 1. The inner cavity of the sample cylinder 301 is provided with a receiving cavity 302. The sample cylinder 301 has openings 303 on the upper and lower sides. The receiving cavity 302 is fixedly provided with an internal thread 304 on the side near the opening 303. The opening 303 is threadedly connected to the cylinder cover 305 through the cooperation between the internal thread 304 and the external thread 306. The operator can unscrew the cylinder cover 305 on one side and take out the sample inside the sample cylinder 301 for testing.
[0022] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, a cylinder cover 305 is provided on one side of the opening 303. An external thread 306 is fixedly provided on the outer side of the cylinder cover 305. The external thread 306 and the internal thread 304 are compatible with each other. The cylinder cover 305 is threadedly connected to the external thread 306 and the internal thread 304. A rubber layer 307 is fixedly connected to one side of the cylinder cover 305. The opening 303 is threadedly connected to the cylinder cover 305 through the fit between the internal thread 304 and the external thread 306. Cylinder covers 305 are provided on both sides of the sample cylinder 301.
[0023] In this embodiment, as Figure 1 and Figure 3 As shown, a conveying chamber 4 is provided inside the conveying pipe 1. A sample delivery device 5 is fixedly connected to the outer side of the conveying pipe 1 near the pick-up and drop-out port 2, and a sample delivery device 6 is fixedly connected to the outer side of the conveying pipe 1 near the pick-up and drop-out port 2. Both the sample delivery device 5 and the sample delivery device 6 are equipped with a pneumatic system and components such as a conveying pump. The sample cylinder 301 is placed inside the conveying pipe 1, and compressed air is used as a power source to convey the sample cylinder 301.
[0024] The method of use and advantages of this utility model: The working process of this pneumatically powered sample delivery device is as follows:
[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, during operation, the on-site inspector unscrews the cap 305 at one end and places the sample to be tested into the sample cylinder 301. Both the sample delivery device 5 and the sample delivery device 6 are equipped with a pneumatic system and components such as a delivery pump. The sample cylinder 301 is placed inside the delivery pipe 1, and compressed air is used as a power source to deliver the sample cylinder 301. When the sample cylinder 301 reaches the pick-up and drop-off port 2 on the other side, since there are openings 303 on both sides of the sample cylinder 301, and the openings 303 are threadedly connected to the cap 305 through the fit between the internal thread 304 and the external thread 306, the operator can unscrew the cap 305 on one side and take out the sample inside the sample cylinder 301 for testing. The inner wall of the sample cylinder 301 is designed with a thin wall.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A pneumatically driven sample delivery device, comprising a delivery pipe (1), characterized in that: The conveying pipe (1) has pick-up and drop-out ports (2) on its left and right sides; The system also includes a sample holding assembly (3), which includes a sample cylinder (301). The sample cylinder (301) is located in the inner cavity of the delivery tube (1). The inner cavity of the sample cylinder (301) is provided with a receiving cavity (302). The sample cylinder (301) has openings (303) on its upper and lower sides. The receiving cavity (302) is fixedly provided with an internal thread (304) on the side near the opening (303).
2. The pneumatically driven sample delivery device according to claim 1, characterized in that: A cylindrical cover (305) is provided on one side of the opening (303), and an external thread (306) is fixedly provided on the outer side of the cylindrical cover (305), and the external thread (306) and the internal thread (304) are compatible with each other.
3. The pneumatically driven sample delivery device according to claim 2, characterized in that: The cap (305) is threadedly connected between the external thread (306) and the internal thread (304), and a rubber layer (307) is fixedly connected to one side of the cap (305).
4. The pneumatically driven sample delivery device according to claim 3, characterized in that: The conveying pipe (1) has a conveying cavity (4) inside. A sample delivery device (5) is fixedly connected to the outer side of the conveying pipe (1) near the pick-up and drop-out port (2), and a sample delivery device (6) is fixedly connected to the outer side of the conveying pipe (1) near the pick-up and drop-out port (2).