Sampling device for conveying materials

Abstract

This invention provides a sampling device for conveying materials, comprising a support frame, a sampling tube, a transmission tube, a drive unit, and a sampling unit. The sampling tube is rotatably connected to the support frame around a first rotating shaft, which is perpendicular to the conveying path of the conveyor belt. The inlet and outlet ends of the sampling tube are inclined vertically. The transmission tube is inclined vertically on the support frame, with its upper end below the outlet end of the sampling tube. The sampling tube has a sampling state where the inlet end is below the outlet end, and a feeding state where the outlet end is below the inlet end. When the sampling tube is in the feeding state, the outlet end is connected to the transmission tube. The drive unit is connected to the sampling tube and controls the rotation of the sampling tube around the first rotating shaft. The sampling device for conveying materials provided by this invention aims to solve the problem that sampling equipment placed on a conveyor belt affects the normal conveying of materials, leading to a reduction in the service life of the conveyor belt and the sampling equipment.

Description

Technical Field

[0001] This invention belongs to the field of sampling technology for conveyed materials, and more specifically, relates to a sampling device for conveyed materials. Background Technology

[0002] Industrial manufacturing enterprises need to regularly and continuously inspect the product indicators of raw materials during the production process and track the quality throughout the process to prevent product quality fluctuations and avoid the occurrence of unqualified products. Traditionally, material sampling and testing in industry is done manually on-site. However, manual sampling has several drawbacks: firstly, it increases labor intensity, requiring dedicated positions for companies that need frequent sampling, thus increasing expenses; secondly, manual sampling makes it difficult to achieve precise, time-bound sampling, resulting in large sampling errors and consequently, significant inaccuracies in the test results. To reduce testing errors, some companies purchase specialized sampling equipment; however, specialized sampling equipment is expensive and often only applicable to specific materials, with a narrow scope and lack of versatility.

[0003] Furthermore, existing manufacturing enterprises typically use conveyor belts for material transfer and transportation. Therefore, sampling equipment is usually placed directly at the conveyor belt's discharge point. However, this design can easily disrupt normal material transport, leading to reduced production efficiency. If the sampling equipment is placed directly on the conveyor belt, it will affect the normal transport of materials when sampling is not required. Moreover, placing the sampling equipment directly on the conveyor belt for extended periods will negatively impact the lifespan of both the conveyor belt and the sampling equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a sampling device for conveying materials, which aims to solve the problem that the sampling device being set on the conveyor belt affects the normal conveying of materials, resulting in a reduction in the service life of the conveyor belt and the sampling device.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a sampling device for conveying materials, comprising:

[0006] Support frame;

[0007] The sampling tube is rotatably connected to the support frame around a first rotating shaft, the first rotating shaft being perpendicular to the transmission path of the conveyor belt, and the inlet and outlet ends of the sampling tube being inclined in the vertical direction.

[0008] The transmission tube is inclined vertically on the support frame, with the upper end of the transmission tube located below the discharge end of the sampling tube;

[0009] The sampling tube has a sampling state in which the inlet end is located below the outlet end, and a feeding state in which the outlet end is located below the inlet end. When the sampling tube is in the feeding state, the outlet end is connected to the transmission tube.

[0010] A drive unit, connected to the sampling tube, is used to control the rotation of the sampling tube around the first rotating shaft; and

[0011] The sampling unit is connected to the feed end. When the sampling tube is in the sampling state, the sampling unit overlaps with the conveyor belt. When the sampling tube is in the feeding state, the sampling unit is separated from the conveyor belt.

[0012] In one possible implementation, the sampling unit includes:

[0013] An interceptor frame, disposed at the feed end, has an opening at its bottom and a feed channel within it that connects the opening to the sampling tube. When the sampling tube is in the sampling state, the bottom of the interceptor frame rests on the conveyor belt.

[0014] A connecting frame is connected to both the interceptor frame and the feed end, and is used to fix the interceptor frame.

[0015] In one possible implementation, the interceptor includes two opposing side plates and baffles connected to the two side plates respectively. The side plates are connected to the connecting frame, the baffles abut against the feed end, and the lower edge of the baffles is located below the sampling tube. When the sampling tube is in the sampling state, the baffles are placed on the conveyor belt.

[0016] In one possible implementation, the lower part of the side plate has a groove along the transmission path, and the interceptor further includes:

[0017] The material plate is slidably connected to the groove;

[0018] A sealing plate is provided on the side of the two side plates away from the feed end;

[0019] Mounting base, connected to the enclosure plate; and

[0020] A positioning rod, threadedly connected to the mounting base, is used to abut against the polymer plate.

[0021] In one possible implementation, the interceptor further includes a top plate covering the top of the side plates, the closing plate, the top plate, and the two side plates forming a frame structure, and the sampling unit further includes a guiding component, the guiding component comprising:

[0022] An adjustment bracket is slidably inserted into the top plate in the vertical direction, and the bottom of the adjustment bracket is located within the frame structure;

[0023] Bearing housing, connected to the top plate;

[0024] An adjusting rod is provided in the vertical direction, the bottom end of the adjusting rod is rotatably connected to the bearing seat, and the adjusting rod is threadedly connected to the adjusting bracket;

[0025] A first actuator, connected to the adjustment bracket and located within the frame structure; and

[0026] A sweeping roller is connected to the first driver, and the axis of the sweeping roller is parallel to the axis of the first rotating shaft.

[0027] In one possible implementation, the bootstrap component includes:

[0028] An expansion joint, connected to the enclosure plate, extends and retracts along the transmission path; and

[0029] A push plate is connected to the telescopic end of the telescopic device, and the bottom of the push plate is located above the baffle plate.

[0030] In one possible implementation, the driving unit includes:

[0031] A winch, connected to the support frame; and

[0032] A guide pulley is rotatably connected to the support frame. The guide pulley is located above the winch, and the wire rope of the winch passes around the guide pulley and is connected to the sampling tube.

[0033] In one possible implementation, the drive unit further includes a braking assembly and a relay electrically connected to the braking assembly. The braking assembly includes a first limit switch and a second limit switch respectively connected to the support frame. When the sampling tube is in the sampling state, the relay controls the first limit switch to brake the winch. When the sampling tube is in the feeding state, the relay controls the second limit switch to brake the winch. The relay is used to control the time interval for the winch to reverse after braking.

[0034] In one possible implementation, the sampling device for conveying material further includes a material guiding assembly disposed within the sampling tube, the material guiding assembly being close to the feed end, the material guiding assembly comprising:

[0035] A second driver is connected to the sampling tube; and

[0036] A guide roller, connected to the second driver, the axis of the guide roller being parallel to the axis of the first rotating shaft; and

[0037] Multiple guiding mechanisms are spaced apart on the outer periphery of the guide roller along the axis of the guide roller. Each guiding mechanism includes multiple guide blades that are radially connected to the guide roller. The material guiding assembly also includes a connecting plate arranged along the axial direction of the guide roller, and the connecting plate is sequentially connected to the multiple guide blades.

[0038] In one possible implementation, the support frame includes:

[0039] The frame is located above the conveyor belt;

[0040] The top beam is located at the top of the frame.

[0041] The base is connected to the bottom of the frame; and

[0042] The lifting outrigger has a fixed end connected to the base and a lifting end connected to the frame.

[0043] The beneficial effects of the sampling device for conveying materials provided by this invention are as follows: Compared with the prior art, the sampling device for conveying materials of this invention, through the control of the driving unit, allows the sampling tube to rotate around the first shaft on the support frame, making the feed end lower than the discharge end, thus adjusting the sampling tube to the sampling state. Then, the sampling unit blocks a portion of the material on the conveyor belt. As the conveyor belt continues to transport materials, the material gradually accumulates at the sampling unit and is guided to the feed end, achieving smooth feeding of the sampled material into the sampling tube. After a sufficient sample is obtained at the feed end, the driving unit controls the sampling tube to rotate around the first shaft on the support frame, raising the feed end and lowering the discharge end, adjusting the sampling tube to the feeding state. The material can then be discharged through the discharge end of the sampling tube, collected by the transmission pipe, and finally discharged along the transmission pipe, completing the sampling process of the material on the conveyor belt.

[0044] This invention controls the sampling tube to rotate around a first axis via a drive unit, ensuring that the sampling unit only contacts the material on the conveyor belt when sampling is in progress. After sampling, the rotation of the sampling tube separates the sampling unit from the material on the conveyor belt. When sampling is not required, this avoids the sampling unit interfering with the normal transport of materials. Compared to existing sampling devices that are permanently mounted on the conveyor belt, this invention only contacts the material on the conveyor belt during sampling, reducing the impact on normal material transport and avoiding the problem of reduced lifespan of both the conveyor belt and the sampling device due to prolonged mounting. This invention offers high reliability. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of the sampling device for conveying materials provided in Embodiment 1 of the present invention;

[0047] Figure 2 This is a schematic diagram of the sampling tube in the feeding state according to Embodiment 1 of the present invention;

[0048] Figure 3 This is a schematic diagram of the structure of the interceptor provided in Embodiment 1 of the present invention;

[0049] Figure 4 for Figure 3 A top view of the interceptor structure shown;

[0050] Figure 5 This is a schematic diagram of the structure of the guiding component provided in Embodiment 2 of the present invention;

[0051] Figure 6 This is a schematic diagram of the structure of the guiding component provided in Embodiment 3 of the present invention;

[0052] Figure 7 This is a schematic diagram of the structure of the guide roller provided in Embodiment 4 of the present invention;

[0053] Figure 8 This is a schematic diagram of the support frame and bearing seat provided in Embodiment 5 of the present invention.

[0054] In the picture:

[0055] 1. Support frame; 101. Frame body; 102. Base; 103. Lifting outriggers; 104. Top beam;

[0056] 2. Sampling tube; 201. Inlet end; 202. Outlet end;

[0057] 3. Sampling unit; 301. Interception frame; 3011. Side plate; 3012. Opening; 3013. Baffle plate; 3014. Slide groove; 3015. Material gathering plate; 3016. Closing plate; 3017. Mounting base; 3018. Positioning rod; 3019. Top plate; 302. Guide assembly; 3021. First driver; 3022. Adjusting bracket; 3023. Bearing seat; 3024. Adjusting rod; 3025. Sweeping roller; 3026. Telescopic device; 3027. Push plate; 303. Connecting frame;

[0058] 4. Transmission pipe;

[0059] 5. Drive unit; 501. Winch; 502. Guide pulley; 503. Wire rope; 504. First limit switch; 505. Second limit switch;

[0060] 6. Material guiding assembly; 601. Second driver; 602. Guide roller; 603. Guide blade; 604. Connecting plate;

[0061] 7. Conveyor belt;

[0062] 8. Support base;

[0063] 9. Push-pull mechanism. Detailed Implementation

[0064] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0065] In the claims, description, and accompanying drawings of this invention, unless otherwise expressly defined, the terms "first," "second," or "third," etc., are used to distinguish different objects, not to describe a specific order. Unless otherwise stated, the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation and positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, not to indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this invention. In the claims, description, and accompanying drawings of this invention, unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" should be interpreted broadly, that is, any connection method in which there is no displacement relationship or relative rotation relationship between the two, that is, including non-removable fixed connection, detachable fixed connection, integral connection, and fixed connection through other devices or elements. In the claims, description, and accompanying drawings of this invention, the terms "comprising," "having," and their variations are intended to mean "including but not limited to."

[0066] Please refer to the following: Figure 1 and Figure 2The sampling device for conveying materials provided by the present invention will now be described. The sampling device for conveying materials includes a support frame 1, a sampling tube 2, a transmission tube 4, a drive unit 5, and a sampling unit 3. The sampling tube 2 is rotatably connected to the support frame 1 about a first rotating shaft, which is perpendicular to the transmission path of the conveyor belt 7. The inlet end 201 and outlet end 202 of the sampling tube 2 are inclined in the vertical direction. The transmission tube 4 is inclined vertically on the support frame 1, with its upper end located below the outlet end 202 of the sampling tube 2. The sampling tube 2 has a feature that positions the inlet end 201 below the outlet end 202. The sampling tube 2 is in the sampling state below the end 202 and the feeding state in which the discharge end 202 is located below the feed end 201. When the sampling tube 2 is in the feeding state, the discharge end 202 is connected to the transmission tube 4. The drive unit 5 is connected to the sampling tube 2 and is used to control the sampling tube 2 to rotate around the first rotating shaft. The sampling unit 3 is connected to the feed end 201. When the sampling tube 2 is in the sampling state, the sampling unit 3 is connected to the conveyor belt 7. When the sampling tube 2 is in the feeding state, the sampling unit 3 is separated from the conveyor belt 7.

[0067] Compared with the prior art, the sampling device for conveying materials provided by the present invention controls the sampling tube 2 to rotate around the first rotating shaft on the support frame 1 through the drive unit 5, so that the feed end 201 is lower than the discharge end 202, and the sampling tube 2 is adjusted to the sampling state. Then, the sampling unit 3 blocks a part of the material on the conveyor belt 7. As the conveyor belt 7 continues to convey, the material can gradually accumulate at the sampling unit 3 and be introduced into the feed end 201, so as to realize the smooth feeding of the sampled material into the sampling tube 2. After a sufficient amount of material sample is obtained at the feed end 201, the driving unit 5 controls the sampling tube 2 to rotate around the first rotating shaft on the support frame 1, so that the feed end 201 is raised and the discharge end 202 is lowered, and the sampling tube 2 is adjusted to the feeding state. The material can then be discharged through the discharge end 202 of the sampling tube 2, and then collected by the transmission pipe 4, and finally discharged along the transmission pipe 4, thus completing the sampling process of the material on the conveyor belt 7.

[0068] This invention controls the sampling tube 2 to rotate around the first rotating shaft via the drive unit 5. This ensures that the sampling unit 3 only contacts the material on the conveyor belt 7 when it is in the sampling state. After sampling, the rotation of the sampling tube 2 separates the sampling unit 3 from the material on the conveyor belt 7. When sampling is not required, this avoids the sampling unit 3 interfering with the normal transport of materials. Compared with the prior art where the sampling device is permanently located on the conveyor belt 7, this invention only contacts the material on the conveyor belt 7 during sampling, which reduces the impact on the normal transport of materials and avoids the problem of reduced lifespan of the conveyor belt 7 and the sampling device due to prolonged placement of the sampling device on the conveyor belt 7. This results in high reliability. (See also: [link to specific embodiments]). Figure 3The sampling unit 3 includes an interceptor frame 301 and a connecting frame 303. The interceptor frame 301 is located at the feed end 201. The bottom of the interceptor frame 301 has an opening 3012. The interceptor frame 301 has a feed channel that connects the opening 3012 with the sampling tube 2. When the sampling tube 2 is in the sampling state, the bottom of the interceptor frame 301 is placed on the conveyor belt 7. The connecting frame 303 is connected to the interceptor frame 301 and the feed end 201 respectively, and is used to fix the interceptor frame 301.

[0069] In this embodiment, when the sampling tube 2 is in the sampling state, the interceptor 301 plays the role of intercepting and blocking the material, allowing the material to enter the feeding channel through the opening 3012. With the continuous transmission of the conveyor belt 7, the intercepted material can gradually accumulate in the feeding channel, which is conducive to sampling a sufficient amount of material.

[0070] In some embodiments, please refer to Figure 3 and Figure 4 The interceptor 301 includes two oppositely arranged side plates 3011 and baffle plates 3013 connected to the two side plates 3011 respectively. The side plates 3011 are connected to the connecting frame 303. The baffle plates 3013 abut against the feed end 201, and the lower edge of the baffle plates 3013 is located below the sampling tube 2. When the sampling tube 2 is in the sampling state, the baffle plates 3013 are placed on the conveyor belt 7.

[0071] The baffle plate 3013 intercepts the material being transported on the conveyor belt 7, causing the material to accumulate. The side plate 3011 blocks the material in the accumulation from the side, effectively preventing the material accumulated in the feed channel from scattering and escaping from the side of the interceptor 301, ensuring that a sufficient amount of material can accumulate at the feed channel.

[0072] Optionally, the connecting frame 303 is connected to the sampling tube 2 by bolts, which allows for easy disassembly and maintenance of the interceptor frame 301.

[0073] In some embodiments, please refer to Figure 3 and Figure 4 The lower part of the side plate 3011 is provided with a groove 3014 along the transmission path. The interceptor 301 also includes a material gathering plate 3015, a closing plate 3016, a mounting base 3017 and a positioning rod 3018. The material gathering plate 3015 is slidably connected to the groove 3014. The closing plate 3016 covers the side of the two side plates 3011 away from the feed end 201. The mounting base 3017 is connected to the closing plate 3016. The positioning rod 3018 is threadedly connected to the mounting base 3017 and is used to abut against the material gathering plate 3015.

[0074] The blocking effect of the sealing plate 3016 and the material-gathering plate 3015 can further improve the material gathering effect at the feeding channel, and reduce material drop when the sampling tube 2 rotates from the sampling state to the feeding state. The material-gathering plate 3015 is slidably connected to the chute 3014, which is opened along the material transmission path. The material accumulated in the feeding channel will not only fall into the feeding end 201 of the sampling tube 2, but will also fall to the side away from the feeding end 201. Therefore, the material-gathering plate 301 is set along the material transmission path. 5. The material falling onto the material-gathering plate 3015 is facilitated to slide towards the feed end 201, improving the overall consistency of material accumulation. The sliding of the material-gathering plate 3015 along the chute 3014 controls the exposed area of ​​the opening 3012, thereby controlling the amount of material entering the feed channel through the opening 3012 per unit time. This achieves control over material interception efficiency, making it easier to adapt to changes in sampling requirements (e.g., different indicators of the material may require different sample sizes), enhancing versatility. The material-gathering plate 3015 is easily fixed by the positioning rod 3018 abutting against it.

[0075] In some embodiments, please refer to Figure 5 The interceptor 301 also includes a top plate 3019 covering the top of the side plates 3011. The closing plate 3016, the top plate 3019, and the two side plates 3011 enclose and form a frame structure. The sampling unit 3 also includes a guide assembly 302, which includes an adjusting bracket 3022, a bearing seat 3023, an adjusting rod 3024, a first driver 3021, and a sweeping roller 3025. The adjusting bracket 3022 is slidably inserted into the top plate 3019 in the vertical direction, and the adjusting bracket 3011... The bottom of 22 is located within the frame structure; the bearing seat 3023 is connected to the top plate 3019; the adjusting rod 3024 is arranged in the vertical direction, the bottom end of the adjusting rod 3024 is rotatably connected to the bearing seat 3023, and the adjusting rod 3024 is threadedly connected to the adjusting bracket 3022; the first driver 3021 is connected to the adjusting bracket 3022 and is located within the frame structure; the sweeping roller 3025 is connected to the first driver 3021, and the axis of the sweeping roller 3025 is parallel to the axis of the first rotating shaft.

[0076] The enclosed plate 3016, top plate 3019, and two side plates 3011 form a frame structure, ensuring the overall stability of the interceptor 301 and preventing materials accumulated in the feed channel from being exposed, thus improving sampling safety. The first driver 3021 controls the rotation of the sweeping roller 3025, promptly sweeping materials accumulated above the baffle plate 3013 into the feed end 201, preventing accumulated materials from being unguided and affecting the continuous interception effect of the interceptor 301. The adjusting rod 3024 controls the up-and-down movement of the adjusting bracket 3022 within the interceptor 301, controlling the distance between the sweeping roller 3025 and the opening 3012, enhancing versatility for different materials (different materials have different sizes).

[0077] Optionally, the first driver 3021 is a motor.

[0078] In some embodiments, please refer to Figure 6 The guide assembly 302 includes a telescopic member 3026 and a pusher plate 3027. The telescopic member 3026 is connected to the closed plate 3016. The telescopic member 3026 extends and retracts along the conveying path. The pusher plate 3027 is connected to the telescopic end of the telescopic member 3026. The bottom of the pusher plate 3027 is located above the baffle plate 3013.

[0079] When the telescopic device 3026 is working, it can push the push plate 3027 to move along the material conveying path, so that the material accumulated above the baffle plate 3013 can be pushed into the feed end 201, thereby realizing the conveying of the material to the feed end 201.

[0080] In some embodiments, please refer to Figure 1 and Figure 2 The drive unit 5 includes a winch 501 and a guide pulley 502. The winch 501 is connected to the support frame 1. The guide pulley 502 is rotatably connected to the support frame 1 and is located above the winch 501. The wire rope 503 of the winch 501 passes around the guide pulley 502 and is connected to the sampling tube 2.

[0081] Through the operation of the winch 501 and the guidance of the guide pulley 502, the rotation of the sampling tube 2 around the first rotating shaft can be controlled, so that when the wire rope 503 is pulled back, the sampling tube 2 can be adjusted to the feeding state, and when the wire rope 503 is released, the sampling tube 2 can be adjusted to the sampling state. Moreover, the winch 501 is convenient for positioning the feeding state and the sampling state.

[0082] In some embodiments, please refer to Figure 1 and Figure 2The drive unit 5 also includes a braking assembly and a relay (not shown in the figure) electrically connected to the braking assembly. The braking assembly includes a first limit switch 504 and a second limit switch 505 respectively connected to the support frame 1. When the sampling tube 2 is in the sampling state, the first limit switch 504 brakes the winch 501. When the sampling tube 2 is in the feeding state, the second limit switch 505 brakes the winch 501. The relay is used to control the time interval of the winch 501 reversing after braking.

[0083] The braking assembly controls the position of the sampling tube 2 when the winch 501 brakes, ensuring that the sampling tube 2 can be accurately positioned in the sampling state or the feeding state, and ensuring the smooth sampling and feeding of the sampling tube 2 and the transmission tube 4. By controlling the reversal time interval of the winch 501 after braking through the relay, the duration of the winch 501 braking and the reversal of the winch 501 after the braking time is completed can be controlled. The detailed working process is as follows: after the first limit switch 504 controls the winch 501 to brake for a certain period of time (i.e., the duration of the sampling tube 2 in the sampling state), the relay controls the winch 501 to reverse, rotating the sampling tube 2 to the feeding state. The second limit switch 505 controls the winch 501 to brake for a certain period of time (i.e., the duration of the sampling tube 2 in the feeding state), and then controls the winch 501 to reverse again, rotating the sampling tube 2 to the sampling state again, and so on. That is, the winch 501 controls the sampling tube 2 to take a sample once at regular intervals, and each sampling lasts for a certain period of time, so as to achieve the purpose of timed sampling. The relay controls the first brake switch and the second brake switch to adjust the braking time of the winch 501 according to the needs, so as to adapt to the sampling demand and solve the drawback of manual sampling that it is difficult to achieve timed and sufficient sampling.

[0084] In some embodiments, please refer to Figure 7 The sampling device for conveying materials also includes a material guiding assembly 6 disposed within the sampling tube 2. The material guiding assembly 6 is located near the feed end 201. The material guiding assembly 6 includes a second driver 601, a guide roller 602, multiple guiding mechanisms, and a connecting plate 604. The second driver 601 is connected to the sampling tube 2. The guide roller 602 is connected to the second driver 601, and the axis of the guide roller 602 is parallel to the axis of the first rotating shaft. Multiple guiding mechanisms are spaced apart along the axis of the guide roller 602 on the outer periphery of the guide roller 602. Each guiding mechanism includes multiple radially arranged guide blades 603 connected to the guide roller 602. The material guiding assembly 6 also includes a connecting plate 604 disposed along the axial direction of the guide roller 602. The connecting plate 604 is sequentially connected to multiple guide blades 603.

[0085] The second driver 601 controls the rotation of the guide roller 602, which can further convey the material introduced into the feed end 201 into the sampling tube 2 by the movement of the guide blade 603 and the connecting plate 604. Moreover, when the sampling tube 2 rotates from the sampling state to the feeding state, it effectively reduces the material falling out of the feed end 201.

[0086] Optionally, the second driver 601 is a motor.

[0087] In some embodiments, please refer to Figure 8 The support frame 1 includes a frame body 101, a top beam 104, a base 102, and lifting legs 103. The frame body 101 is located above the conveyor belt 7; the top beam 104 is located at the top of the frame body 101; the base 102 is connected to the bottom of the frame body 101; the fixed end of the lifting legs 103 is connected to the base 102, and the lifting end is connected to the frame body 101.

[0088] The lifting outrigger 103 can control the frame 101 and the top beam 104 to move up and down, which in turn drives the sampling tube 2 and the transmission tube 4 to move up and down, thereby controlling the distance between the interceptor 301 and the surface of the conveyor belt 7 during sampling, ensuring flexible and reliable sampling.

[0089] Optionally, the lifting outrigger 103 is a hydraulic lifter.

[0090] Optional, please refer to Figure 8 A support seat 8 is provided below the base 102, and the base 102 is slidably connected to the support seat 8. A push-pull device 9 is provided on the support seat 8, and the push-pull end of the push-pull device 9 is connected to the base 102 to drive the base 102 to slide back and forth within the support seat 8. The push-pull device 9 is electrically connected to a relay. When the sampling tube 2 is in the feeding state, the relay controls the push-pull device 9 to start; when the sampling tube 2 is not in the feeding state, the relay controls the push-pull device 9 to stop. By pushing the base 102 to slide back and forth within the support seat 8 through the push-pull device 9, the entire sampling device can be shaken, so that the material in the sampling tube 2 and the transmission tube 4 can be transferred more thoroughly, reducing material residue. The relay controls the push-pull device 9 to start working only when the sampling tube 2 is in the feeding state, avoiding any impact on the material collection process.

[0091] Optionally, push-pull device 9 is a hydraulic telescopic cylinder.

[0092] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sampling device for conveying materials, characterized in that, include: Support frame; The sampling tube is rotatably connected to the support frame around a first rotating shaft, the first rotating shaft being perpendicular to the transmission path of the conveyor belt. The sampling tube is positioned above the conveyor belt, and the inlet and outlet ends of the sampling tube are inclined in the vertical direction. A transmission pipe is connected to the support frame at an angle, with the upper end of the transmission pipe located below the discharge end. A drive unit is connected to the sampling tube, and the drive unit is used to control the sampling tube to rotate around the first rotating shaft; as well as A sampling unit is connected to the feed end. When the sampling tube is in the sampling state, the sampling unit overlaps with the conveyor belt. When the sampling tube is in the feeding state, the sampling unit is separated from the conveyor belt. The drive unit controls the rotation of the sampling tube, switching the sampling tube between a sampling state and a feeding state. When the sampling tube is in the sampling state, the feed end is located below the discharge end. When the sampling tube is switched to the feeding state, the discharge end is located below the feed end. When the sampling tube is in the feeding state, the discharge end is connected to the transmission tube. The sampling unit includes: An interceptor frame, disposed at the feed end, has an opening at its bottom and a feed channel within it that connects the opening to the sampling tube. When the sampling tube is in the sampling state, the bottom of the interceptor frame is in contact with the conveyor belt. A connecting frame is connected to both the interceptor frame and the feed end, and is used to fix the interceptor frame. The drive unit further includes a braking assembly and a relay electrically connected to the braking assembly. The braking assembly includes a first limit switch and a second limit switch respectively connected to the support frame. When the sampling tube is in the sampling state, the relay controls the first limit switch to brake the winch. When the sampling tube is in the feeding state, the relay controls the second limit switch to brake the winch. The relay is used to control the time interval of the winch reversing after braking. The driving unit includes: A winch, connected to the support frame; and A guide pulley is rotatably connected to the support frame. The guide pulley is located above the winch, and the wire rope of the winch passes around the guide pulley and is connected to the sampling tube.

2. The sampling device for conveying materials as described in claim 1, characterized in that, The interceptor includes two opposing side plates and baffle plates connected to the two side plates respectively. The side plates are connected to the connecting frame. The baffle plates abut against the feed end, and the lower edge of the baffle plates is located below the sampling tube. When the sampling tube is in the sampling state, the baffle plates are placed on the conveyor belt.

3. The sampling device for conveying materials as described in claim 2, characterized in that, The lower part of the side plate is provided with a sliding groove along the transmission path, and the interceptor also includes: The material plate is slidably connected to the groove; A sealing plate is provided on the side of the two side plates away from the feed end; Mounting base, connected to the enclosure plate; and A positioning rod, threadedly connected to the mounting base, is used to abut against the polymer plate.

4. The sampling device for conveying materials as described in claim 3, characterized in that, The interceptor also includes a top plate covering the top of the side plates. The closing plate, the top plate, and the two side plates together form a frame structure. The sampling unit also includes a guiding assembly, which includes: An adjustment bracket is slidably inserted into the top plate in the vertical direction, and the bottom of the adjustment bracket is located within the frame structure; Bearing housing, connected to the top plate; An adjusting rod is provided in the vertical direction, the bottom end of which is rotatably connected to the bearing seat, and the adjusting rod is threadedly connected to the adjusting bracket; A first actuator, connected to the adjustment bracket and located within the frame structure; and A sweeping roller is connected to the first driver, and the axis of the sweeping roller is parallel to the axis of the first rotating shaft.

5. The sampling device for conveying materials as described in claim 4, characterized in that, The boot component includes: An expansion joint, connected to the enclosure plate, extends and retracts along the transmission path; and A push plate is connected to the telescopic end of the telescopic device, and the bottom of the push plate is located above the baffle plate.

6. The sampling device for conveying materials as described in claim 1, characterized in that, The sampling device for conveying material further includes a material guiding assembly disposed within the sampling tube, the material guiding assembly being close to the feed end, and the material guiding assembly comprising: A second driver is connected to the sampling tube; A guide roller, connected to the second driver, the axis of the guide roller being parallel to the axis of the first rotating shaft; and Multiple guiding mechanisms are spaced apart on the outer periphery of the guide roller along the axis of the guide roller. Each guiding mechanism includes multiple guiding blades radially connected to the guide roller. The material guiding assembly also includes a connecting plate arranged along the axial direction of the guide roller, and the connecting plate is sequentially connected to the multiple guiding blades.

7. The sampling device for conveying materials as described in claim 1, characterized in that, The support frame includes: The frame is positioned above the conveyor belt; The top beam is located at the top of the frame. The base is connected to the bottom of the frame; and The lifting outrigger has a fixed end connected to the base and a lifting end connected to the frame.

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