Flour sampling device

Abstract

The utility model discloses a flour sampling device which comprises a sampling pipe, a through opening is formed in the side face of the sampling pipe, an auger shaft is rotatably connected to the inner top end of the sampling pipe in a penetrating mode, a connecting pipe is arranged above the sampling pipe, and scales are arranged on the front side of the connecting pipe and the front side of the sampling pipe. The upper end of the connecting pipe and the upper end of the sampling pipe are both fixedly connected with a connecting cylinder, the outer side of the connecting cylinder is fixedly connected with a limiting blocking frame, a thread is formed in the position, close to the upper portion, of the outer ring of the connecting cylinder arranged at the upper end of the sampling pipe, and first clamping grooves are formed in the front side and the rear side of the connecting cylinder arranged at the upper end of the connecting pipe. The sampling pipe and the connecting pipe are connected and fixed, the overall length is adjusted, the sampling pipe can deeply collect, a proper amount of connecting pipe is selected for connection and fixation according to different depth collection requirements, the depth of the sampling pipe is adjusted, and meanwhile, under the assistance of scales, the insertion depth is conveniently adjusted, and flour at different depths is sampled.

Description

Technical Field

[0001] This utility model relates to the field of flour sampling technology, specifically a flour sampling device. Background Technology

[0002] Flour is a powdery substance made from milled wheat. Based on its protein content, it can be classified into high-gluten flour, medium-gluten flour, low-gluten flour, and gluten-free flour. Quality testing is conducted during flour production and processing, as well as during subsequent storage. Production process testing primarily assesses various quality indicators such as moisture content, ash content, and protein content. Storage process testing primarily detects the presence of harmful microorganisms and contamination after long-term storage, ensuring the flour remains edible. Sampling is required for flour testing using a flour sampling device. Multiple samples are taken from the flour storage area, and then all samples are mixed together to obtain a representative sample. This sample is then tested and analyzed. A search revealed that a typical existing flour sampling technique is described in publication number CN202322. 972710.8, a flour sampling device for flour testing, includes a sampling cylinder, a collection bottle disposed outside the sampling cylinder, a handle disposed on the top surface of the sampling cylinder, and a processing component disposed below the handle. The processing component includes a sampling component disposed inside the sampling cylinder, and a disassembly component disposed outside the sampling component. When flour needs to be sampled for testing, the handle is held, and the sampling cylinder is inserted into the pile of flour. When the feed inlet is in the middle of the flour, flour sampling can be performed. The motor is started, causing the auger fixedly installed at the motor output end to rotate. Flour enters the sampling cylinder through the hole opened in the outer wall of the feed inlet. Due to the rotational contact between the outer wall of the auger and the inner wall of the sampling cylinder, the auger rotates and conveys the flour upwards under its constraint, conveying the flour to the connection between the sampling cylinder and the collection bottle. The flour is conveyed under the action of the auger's rotation.

[0003] In conclusion, the flour sampling device described above is not suitable for sampling operations during flour storage. Some flour is stored in steel silos, which offer excellent sealing and moisture-proof properties, effectively preventing the flour from becoming damp and spoiling. The smooth inner walls of the steel silos prevent flour from adhering, facilitating cleaning and maintenance. Furthermore, the high strength of the steel silos allows them to withstand significant pressure, ensuring the safe storage of the flour. When sampling and testing flour, different depths of sampling are required depending on the situation. Therefore, the flour sampling device needs to be able to sample at relatively high depths, which the aforementioned flour sampling device is clearly unsuitable. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the above and / or existing flour sampling devices, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a flour sampling device. According to the required depth of flour sampling, the sampling tube and an appropriate amount of connecting tube are connected and fixed, and the overall length is adjusted to facilitate sampling of flour at deeper depths. The set scale makes it easy to control the depth of sampling insertion.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A flour sampling device includes a sampling tube with an opening on its side. A screw conveyor shaft is rotatably connected to the inner top of the sampling tube. A connecting tube is positioned above the sampling tube. Both the connecting tube and the sampling tube have graduations on their front sides. A connecting cylinder is fixedly connected to the upper ends of both the connecting tube and the sampling tube. A limit stop is fixedly connected to the outer side of the connecting cylinder. An opening is provided on the front side of the connecting cylinder. The outer ring of the connecting cylinder at the upper end of the sampling tube has a thread near its upper edge. A first slot is provided on the front and rear sides of the connecting cylinder at the upper end of the connecting tube. The first slot is positioned above the limit stop. Limit blocks are fixedly connected to the upper end face of the connecting cylinder at the upper end of the connecting tube on the left and right sides. A drive frame is positioned above the connecting tube. A drive shaft is rotatably connected to the inner top of the connecting tube. A first locking block is fixedly connected to the lower end of the drive shaft. Second slots are provided at the upper ends of both the drive shaft and the screw conveyor shaft.

[0009] In a preferred embodiment of the flour sampling device of this utility model, the auger shaft includes spiral blades fixedly connected to the outer ring of the auger shaft. The spiral blades are disposed inside the sampling tube. A connecting rod is fixedly connected to the lower part of the outer ring of the auger shaft. A stirring frame is fixedly connected to the end of the connecting rod away from the auger shaft.

[0010] In a preferred embodiment of the flour sampling device described in this utility model, the drive frame includes a handle fixedly mounted on the upper end of the drive frame, and limit grooves are provided on the left and right sides of the drive frame near the lower part.

[0011] In a preferred embodiment of the flour sampling device of this utility model, the drive frame further includes a first rotating shaft that is rotatably connected through the inner wall of the drive frame, and a second locking block is fixedly connected to the lower end of the first rotating shaft.

[0012] In a preferred embodiment of the flour sampling device described in this utility model, the first rotating shaft is connected to the second rotating shaft via a bevel gear set, and the second rotating shaft is rotatably connected to the inner wall of the drive frame.

[0013] In a preferred embodiment of the flour sampling device described in this utility model, the end of the second rotating shaft away from the bevel gear set is connected to the motor output shaft, the motor is installed inside the drive frame, and a storage battery is installed inside the drive frame.

[0014] In a preferred embodiment of the flour sampling device of this utility model, the drive frame further includes a connecting housing fixedly disposed on the front and rear sides of the drive frame near the bottom. A pull rod is provided through the outer side of the connecting housing, and a limit plate is fixedly connected to the inner end of the pull rod. The limit plate is disposed inside the connecting housing.

[0015] In a preferred embodiment of the flour sampling device of this utility model, the drive frame further includes a third locking block fixedly connected to the inner end face of the limiting plate. The inner end of the third locking block passes through a groove opened on the side wall of the drive frame. A spring is fixedly connected between the outer end face of the limiting plate and the inner wall of the connecting housing, and the pull rod passes through the spring.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The sampling tube and connecting tube are connected and fixed according to the required depth of flour sampling, and the overall length is adjusted to facilitate deeper sampling. Based on different sampling depth requirements, an appropriate number of connecting tubes are selected for connection and fixing, adjusting the depth of the sampling tube. Simultaneously, with the aid of a scale, the insertion depth is easily adjusted, allowing sampling of flour at different depths. The drive frame connects to the uppermost connecting tube, and under the action of the motor, the transmission shaft rotates through the second rotating shaft, bevel gear set, first rotating shaft, and second locking block. This rotation is transmitted through the transmission shafts within each connecting tube, thereby driving the auger shaft to rotate. The auger shaft drives the spiral blades to rotate, conveying the flour upwards into the sampling tube for sampling. Simultaneously, the auger shaft drives the stirring frame to rotate, agitating and dispersing the flour around the sampling tube opening, preventing flour from accumulating and clumping, which would affect sampling and delivery. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the sampling tube of this utility model;

[0020] Figure 3 This is a schematic diagram of the connecting pipe, connecting cylinder, limiting stop, opening, and thread structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the connecting pipe, connecting cylinder, limiting stop, opening, first slot and limiting block of this utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the drive frame of this utility model;

[0023] Figure 6 This is a schematic cross-sectional view of the connecting shell structure of this utility model.

[0024] In the diagram: 1. Sampling tube; 2. Through port; 3. Screw shaft; 301. Spiral blade; 302. Connecting rod; 303. Stirring frame; 4. Connecting pipe; 5. Scale; 6. Connecting cylinder; 7. Limiting stop; 8. Opening; 9. Thread; 10. First slot; 11. Limiting block; 12. Drive frame; 1201. Handle; 1202. Limiting groove; 1203. First rotating shaft; 1204. Second locking block; 1205. Bevel gear set; 1206. Second rotating shaft; 1207. Motor; 1208. Battery; 1209. Connecting housing; 1210. Pull rod; 1211. Limiting plate; 1212. Spring; 1213. Third locking block; 13. Drive shaft; 14. First locking block; 15. Second slot. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] This utility model provides a flour sampling device. As needed to sample the flour at the required depth, the sampling tube and an appropriate amount of connecting tube are connected and fixed, and the overall length is adjusted to facilitate sampling of flour at deeper depths. The set scale makes it easy to control the depth of sampling insertion.

[0029] Figures 1-6 The diagram shown is an overall structural schematic of one embodiment of the flour sampling device of this utility model. Please refer to [link / reference]. Figures 1-6 This embodiment of a flour sampling device includes a sampling tube 1, with an opening 2 on its side. A screw shaft 3 is rotatably connected through the inner top of the sampling tube 1. A connecting tube 4 is positioned above the sampling tube 1. Both the connecting tube 4 and the sampling tube 1 have graduations 5 on their front sides. A connecting cylinder 6 is fixedly connected to the upper ends of both the connecting tube 4 and the sampling tube 1. A limit stop 7 is fixedly connected to the outer side of the connecting cylinder 6. An opening 8 is provided on the front side of the connecting cylinder 6. The outer ring of the connecting cylinder 6 at the upper end of the sampling tube 1 is close to the upper... The connecting tube 4 has a thread 9. The connecting cylinder 6 at the upper end of the connecting tube 4 has a first slot 10 on the front and rear sides. The first slot 10 is located above the limit stop 7. The upper end face of the connecting cylinder 6 at the upper end of the connecting tube 4 is fixedly connected to the left and right sides with limit blocks 11. The connecting tube 4 has a drive frame 12 at the upper end. The top end of the connecting tube 4 is rotatably connected to the drive shaft 13. The lower end of the drive shaft 13 is fixedly connected to the first block 14. The upper end of the drive shaft 13 and the upper end of the auger shaft 3 both have a second slot 15.

[0030] The opening 8 facilitates the engagement of the first locking block 14 and the second locking slot 15, as well as the engagement of the second locking block 1204 and the second locking slot 15. That is, when the connecting pipe 4 is threadedly connected to the sampling pipe 1 via the thread 9, in order to facilitate the precise engagement of the second locking block 1204 and the second locking slot 15, the second locking block 1204 is manually held and limited at the opening 8 to prevent the second locking block 1204 from rotating when it is threadedly connected to the connecting pipe 4, thus affecting the docking.

[0031] The auger shaft 3 includes a spiral blade 301 fixedly connected to the outer ring of the auger shaft 3. The spiral blade 301 is disposed inside the sampling tube 1. A connecting rod 302 is fixedly connected to the lower part of the outer ring of the auger shaft 3. An agitator 303 is fixedly connected to the end of the connecting rod 302 away from the auger shaft 3.

[0032] The auger shaft 3 drives the spiral blades 301 to rotate, causing the flour to be transported upward into the sampling tube 1 for sampling. At the same time, the auger shaft 3 drives the stirring frame 303 to rotate through the connecting rod 302, which stirs and disperses the flour around the opening of the sampling tube 1, preventing the flour from accumulating and clumping, thus affecting the sampling and transportation.

[0033] The drive frame 12 includes a handle 1201 fixedly mounted on the upper end of the drive frame 12, and limit grooves 1202 are provided on the left and right sides of the drive frame 12 near the bottom.

[0034] The handle 1201 facilitates the lifting and use of the drive frame 12, and provides convenient support and stability when the drive frame 12 is in use. The limiting groove 1202 and the limiting block 11 cooperate to facilitate the positioning and connection of the drive frame 12 through the first slot 10 and the connecting cylinder 6.

[0035] The drive frame 12 also includes a first rotating shaft 1203 that is rotatably connected through the inner wall of the drive frame 12, and a second locking block 1204 is fixedly connected to the lower end of the first rotating shaft 1203.

[0036] The second locking block 1204 and the first locking block 14 are the same size and structure. The second locking block 1204 engages with the second slot 15 on the uppermost drive shaft 13, and the drive shaft 13 is driven to rotate by the first rotating shaft 1203. Each connecting pipe 4 and the lowermost connecting pipe 4 and the sampling pipe 1 are engaged by the first locking block 14 and the second slot 15 for driving transmission. When the number of connecting pipes 4 is greater than 2, the connecting pipe 4 with the first slot 10 and the limiting block 11 is always at the top for connecting with the drive frame 12. The connecting cylinder 6 on the connecting pipe 4 in between has the same structure as the connecting cylinder 6 on the sampling pipe 1. That is, the connecting cylinder 6 on the connecting pipe 4 in between is provided with a thread 9.

[0037] The first rotating shaft 1203 is connected to the second rotating shaft 1206 via a bevel gear set 1205. The second rotating shaft 1206 is rotatably connected to the inner wall of the drive frame 12. The end of the second rotating shaft 1206 away from the bevel gear set 1205 is connected to the output shaft of the motor 1207. The motor 1207 is installed inside the drive frame 12, and a battery 1208 is installed inside the drive frame 12.

[0038] Under the action of motor 1207, the transmission shaft 13 is driven to rotate through the second rotating shaft 1206, bevel gear set 1205, first rotating shaft 1203 and second locking block 1204.

[0039] The drive frame 12 also includes a connecting housing 1209 fixedly disposed on the front and rear sides near the lower part of the drive frame 12. A pull rod 1210 is provided through the outer side of the connecting housing 1209. A limit plate 1211 is fixedly connected to the inner end of the pull rod 1210. The limit plate 1211 is disposed inside the connecting housing 1209. The drive frame 12 also includes a third locking block 1213 fixedly connected to the inner end face of the limit plate 1211. The inner end of the third locking block 1213 passes through a groove opened on the side wall of the drive frame 12. A spring 1212 is fixedly connected between the outer end face of the limit plate 1211 and the inner wall of the connecting housing 1209. The pull rod 1210 passes through the spring 1212.

[0040] The drive frame 12 is fitted onto the outside of the connecting cylinder 6 on the uppermost connecting pipe 4. The limiting groove 1202 and the limiting block 11 cooperate accordingly, facilitating the positioning connection of the drive frame 12 and the connecting cylinder 6 through the first slot 10. The limiting plate 1211 is pulled by the pull rod 1210 to compress the spring 1212. After the drive frame 12 is fitted onto the connecting cylinder 6, it contacts and is limited by the limiting stop 7. The pull rod 1210 is released, and the limiting plate 1211 is pushed by the spring 1212, so that the third block 1213 is inserted into the first slot 10, which enhances the driving stability of the drive frame 12 during use. The sampling tube 1 and the connecting pipe 4 can be easily adjusted in length through the scale 5. To facilitate the calculation of the insertion depth, the height of the limiting stop 7 and the height of the connecting cylinder 6 below the position of the limiting stop 7 are constant and known, which is convenient for use and operation.

[0041] Combination Figures 1-6The flour sampling device of this embodiment is used in the following way: During sampling, the sampling tube 1 is first inserted into the sampling point, and its overall length is adjusted by the connecting tube 4 on the sampling tube 1. When connecting two or more connecting tubes 4, the connecting tube 4 with the thread 9 is first threadedly connected to the thread 9 on the sampling tube 1. In order to facilitate the precise engagement of the second locking block 1204 and the second locking groove 15, the second locking block 1204 is manually held and limited through the opening 8 to prevent the second locking block 1204 from rotating when it is threadedly connected with the connecting tube 4, so that the second locking block 1204 moves down stably and the second locking groove 15 is engaged. When the uppermost connecting pipe 4, which is used to connect with the drive frame 12, is installed, the connecting pipe 4, which has the first slot 10 and the limiting block 11, is threaded to the lower connecting pipe 4 through the thread 9. The drive frame 12 is then fitted onto the outside of the connecting cylinder 6 on the uppermost connecting pipe 4. The limiting slot 1202 and the limiting block 11 cooperate to facilitate the positioning connection of the drive frame 12 with the connecting cylinder 6 through the first slot 10. The limiting plate 1211 is pulled by the pull rod 1210 to compress the spring 1212. After the drive frame 12 is fitted onto the connecting cylinder 6, it contacts and is limited by the limiting stop 7. The pull rod is then released. 1210, Under the action of spring 1212, push the limiting plate 1211, so that the third locking block 1213 is locked into the first locking slot 10, enhancing the driving stability of the drive frame 12 during use. According to the set scale 5, the number of connected connecting pipes 4, the known height of the limiting stop 7, and the height of the connecting cylinder 6 below the position of the limiting stop 7, calculate the insertion depth. After inserting to a suitable depth, connect the battery 1208 and start the motor 1207. Under the action of motor 1207, drive the transmission through the second rotating shaft 1206, bevel gear set 1205, first rotating shaft 1203 and second locking block 1204. The rotating shaft 13 drives the auger shaft 3 to rotate, which in turn drives the spiral blades 301 to rotate, causing the flour to be transported upwards into the sampling tube 1 for sampling. At the same time, the auger shaft 3 drives the stirring frame 303 to rotate via the connecting rod 302, which stirs and disperses the flour around the opening of the sampling tube 1, preventing the flour from accumulating and clumping, which would affect the sampling and transport. After sampling, the sampling tube 1 is pulled out and engaged with the second slot 15 on the auger shaft 3 via the external handle. The handle drives the auger shaft 13 to rotate, and the collected flour is discharged and collected through the outlet 2. The handle is not shown in the figure.

[0042] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A flour sampling device, comprising a sampling tube (1), characterized in that: The sampling tube (1) has an opening (2) on its side. A screw shaft (3) is rotatably connected to the inner top of the sampling tube (1). A connecting tube (4) is located above the sampling tube (1). Scales (5) are provided on the front sides of both the connecting tube (4) and the sampling tube (1). A connecting cylinder (6) is fixedly connected to the upper ends of both the connecting tube (4) and the sampling tube (1). A limit stop (7) is fixedly connected to the outer side of the connecting cylinder (6). An opening (8) is provided on the front side of the connecting cylinder (6). A thread (9) is provided on the outer ring of the connecting cylinder (6) near the top of the sampling tube (1). The connecting tube (6) at the upper end of the connecting tube (4) has a first slot (10) on the front and rear sides. The first slot (10) is located above the limiting stop (7). The upper end face of the connecting tube (6) at the upper end of the connecting tube (4) is fixedly connected to the left and right sides by limiting blocks (11). A drive frame (12) is provided above the connecting tube (4). A drive shaft (13) is rotatably connected through the top end of the connecting tube (4). A first locking block (14) is fixedly connected to the lower end of the drive shaft (13). A second slot (15) is provided at the upper end of the drive shaft (13) and the upper end of the auger shaft (3).

2. The flour sampling device according to claim 1, characterized in that: The auger shaft (3) includes a spiral blade (301) fixedly connected to the outer ring of the auger shaft (3). The spiral blade (301) is disposed inside the sampling tube (1). A connecting rod (302) is fixedly connected to the lower part of the outer ring of the auger shaft (3). An agitator (303) is fixedly connected to the end of the connecting rod (302) away from the auger shaft (3).

3. The flour sampling device according to claim 1, characterized in that: The drive frame (12) includes a handle (1201) fixedly mounted on the upper end of the drive frame (12), and limit grooves (1202) are provided on the left and right sides of the drive frame (12) near the bottom.

4. The flour sampling device according to claim 1, characterized in that: The drive frame (12) also includes a first rotating shaft (1203) that is rotatably connected through the inner wall of the drive frame (12), and a second locking block (1204) is fixedly connected to the lower end of the first rotating shaft (1203).

5. A flour sampling device according to claim 4, characterized in that: The first rotating shaft (1203) is connected to the second rotating shaft (1206) via a bevel gear set (1205), and the second rotating shaft (1206) is rotatably connected to the inner wall of the drive frame (12).

6. A flour sampling device according to claim 5, characterized in that: The second rotating shaft (1206) is connected to the output shaft of the motor (1207) at the end away from the bevel gear set (1205). The motor (1207) is installed in the drive frame (12), and the drive frame (12) is equipped with a battery (1208).

7. A flour sampling device according to claim 1, characterized in that: The drive frame (12) also includes a connecting housing (1209) fixedly disposed on the front and rear sides of the drive frame (12) near the bottom. A pull rod (1210) is provided through the outside of the connecting housing (1209). A limiting plate (1211) is fixedly connected to the inner end of the pull rod (1210). The limiting plate (1211) is disposed inside the connecting housing (1209).

8. A flour sampling device according to claim 7, characterized in that: The drive frame (12) also includes a third locking block (1213) fixedly connected to the inner end face of the limiting plate (1211). The inner end of the third locking block (1213) passes through a slot opened on the side wall of the drive frame (12). A spring (1212) is fixedly connected between the outer end face of the limiting plate (1211) and the inner wall of the connecting housing (1209). The pull rod (1210) passes through the spring (1212).

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