Powder sampling detection device

Abstract

The utility model relates to a powder sampling and detecting device which comprises a sampling pipe which is integrally in a corrugated pipe shape; the spiral pushing rod is arranged in the sampling pipe, and a spiral pushing piece is arranged on the surface of the spiral pushing rod; one end of the spiral pushing rod is rotationally arranged at the feed port end of the collecting bin, and one end of the sampling pipe is mounted at the feed port end of the collecting bin; the driving mechanism is connected with the spiral pushing rod, and the suction mechanism is installed on the collecting bin and used for sucking materials in the collecting bin. The sample tube is installed on the collecting bin and used for collecting samples, the samples sucked into the collecting bin can be collected through the sample tube installed on the collecting bin, suction can be stopped when the amount of the samples in the sample tube is close to a marking line, and therefore the powder sampling detection device can go deep into a material distributing pile for sampling, and the sampling efficiency is improved. The representativeness of material sampling is improved, and the accuracy of a detection result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering sample detection equipment, in particular to a powder sampling detection device. Background Art

[0002] Powder materials such as cement, fly ash, and mineral powder are used in large quantities in the construction industry, so sampling and testing of the above powders is of great significance. In order to make the sampling representative, when sampling powders, it is necessary to take 15 uniform and approximately equal portions of materials from different parts of the material pile, and when sampling from material hoppers, engineering vehicles, warehouses, etc., approximately 16-20 portions of materials should be taken from different parts and depths. The extracted materials need to be tested for particle grading, apparent density, bulk density and porosity, mud content, stone content, mud block content, firmness, alkali aggregate reaction and harmful substances. After inspection, the product can be judged as qualified only when the results meet the corresponding requirements specified in the standard. If one of the items is unqualified, the item should be re-sampled from the same batch of finished products. If the indicators meet the standard requirements after re-inspection, the product can be judged as qualified; if it still does not meet the standard requirements, the batch of products can be judged as unqualified.

[0003] When sampling powders, a sampler is needed. The design of traditional samplers has many defects, such as

[0004] The sampler adopts an ordinary shovel-type structure, which cannot effectively control the sampling volume, and requires personnel to stand at the sample position to take samples, and can only take samples on the surface, which makes the sampling unrepresentative and causes distortion of the test results. Utility Model Content

[0005] The purpose of the utility model is to provide a powder sampling and detection device, which can conveniently sample inconvenient sampling locations such as material piles and silos, improve the representativeness of material sampling, and ensure the accuracy of detection results.

[0006] The technical solution to the technical problem in the utility model adopts the following technical solution: In a preferred embodiment of the utility model, the powder sampling and detection device includes:

[0007] The sampling tube is in the shape of a corrugated tube as a whole;

[0008] A spiral push rod is arranged in the sampling tube, and a spiral push sheet is arranged on the surface of the spiral push rod;

[0009] A collecting bin, one end of the spiral push rod is rotatably arranged at the feed inlet end of the collecting bin, and one end of the sampling tube is installed at the feed inlet end position of the collecting bin;

[0010] A driving mechanism, connected to the spiral push rod and driving the spiral push rod;

[0011] A suction mechanism, installed on the collecting bin, for sucking the material in the collecting bin;

[0012] The sample tube is installed on the collection chamber and is used to collect the sample.

[0013] The utility model also has the following technical features:

[0014] In an embodiment of the present invention, the sample tube and the collection chamber are detachably connected.

[0015] In an embodiment of the present invention, the collection bin comprises at least a first pipe opening and a second pipe opening, the tube end of the sampling tube is arranged at the first pipe opening, and the sample tube is arranged at the second pipe opening.

[0016] In one embodiment of the utility model, a fixed bracket is provided at one end of the sampling tube, one end of the spiral push rod is fixedly connected to the fixed bracket, and the other end of the spiral push rod is connected to a telescopic mechanism, and the telescopic mechanism drives the spiral push rod to move along the length direction of the sampling tube and links the sampling tube to telescope.

[0017] In one embodiment of the utility model, the telescopic mechanism includes a rotating bearing arranged at one end of the spiral push rod, the spiral push rod is connected to the inner ring of the rotating bearing, the outer ring of the rotating bearing is provided with a telescopic thread segment, the telescopic thread segment cooperates with the telescopic nut, the outer wall of the telescopic nut is provided with a gear ring, the gear ring is meshed with a driving gear, and the driving gear is connected to a driving motor.

[0018] In one embodiment of the utility model, a telescopic tube is provided at one end of the spiral push rod, and the telescopic tube and the plug-in tube form a sliding connection. One end of the plug-in tube is connected to a rotating motor, and the rotating motor is fixed on the collection bin.

[0019] In an embodiment of the present invention, the sample tube and the second tube opening are threadedly connected.

[0020] In an embodiment of the utility model, a branch pipe is provided on the second pipe opening, and the suction opening of the suction mechanism is connected to the branch pipe.

[0021] In an embodiment of the utility model, a handle is provided on the collection bin.

[0022] In one embodiment of the utility model, a shoulder strap and a power box are further provided on the collection bin, and a battery is provided in the power box.

[0023] Compared with the prior art, the beneficial effects of the utility model are embodied in: when implementing sample suction, the sampling tube is extended into the sample pile, and by starting the driving mechanism and the suction mechanism, the spiral push rod is rotated, so that the powder sucked into the sampling tube is sucked into the spiral push rod, and the spiral push rod is rotated, so that the powder enters the collecting bin along the sampling tube, and the sample drawn into the collecting bin can be collected through the sample tube installed on the collecting bin. When the sample amount in the sample tube is close to the marked line, the suction can be stopped. Therefore, the powder sampling and detection device can be used to sample deeply in the material pile, improve the representativeness of material sampling, and ensure the accuracy of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of a powder sampling and detection device in one embodiment of the utility model;

[0025] Figure 2 It is a cross-sectional schematic diagram of a powder sampling and detection device in one embodiment of the utility model;

[0026] Figure 3 It is a plan view of a collecting bin of a powder sampling and testing device in one embodiment of the utility model;

[0027] Figure 4 It is a schematic diagram of the structure of a sampling tube of a collection bin of a powder sampling and testing device in one embodiment of the utility model;

[0028] Figure 5 The utility model is a schematic diagram of the cross-sectional structure of a sampling tube of a powder sampling and detection device in one embodiment. DETAILED DESCRIPTION

[0029] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0030] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention. Therefore, the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0031] See also Figure 1 and Figure 2Existing powder materials, such as fly ash, are piled up in a material bin. As the powder materials are exposed to the air for too long, the powder materials outside the material bin are very easy to deteriorate. In actual sampling, the existing samplers are all for sampling the surface, so the samples are not representative, and there is a large deviation in the judgment of the samples. In this regard, the utility model proposes a powder sampling and detection device, including a sampling tube 10, which is in the shape of a corrugated tube as a whole; a spiral push rod 20, which is arranged in the sampling tube 10, and a spiral push sheet 201 is arranged on the surface of the spiral push rod 20; a collecting bin 30, one end of the spiral push rod 20 is rotatably arranged at the feed port end of the collecting bin 30, and one end of the sampling tube 10 is installed at the feed port end position of the collecting bin 30; a driving mechanism is connected to the spiral push rod 20 and drives the spiral push rod 20; a suction mechanism is installed on the collecting bin 30 to suction the material in the collecting bin 30; a sample tube 40 is installed on the collecting bin 30 for collecting samples.

[0032] In one embodiment, the sampling tube 10 is made of a retractable rubber tube, and the spiral push rod 20 is driven to rotate by a driving mechanism so that the powder can move along the sampling tube 10. In conjunction with the suction mechanism, it can be ensured that the powder can reliably enter the collecting bin 30 until it is discharged from the discharge port of the collecting bin 30 into the sample tube 40, thereby realizing sample collection. When the sample volume in the sample tube 40 reaches the scale line, the driving mechanism and the suction mechanism are stopped, and the sample tube 40 is removed from the collecting bin 30 to complete a sampling.

[0033] In one embodiment, in order to facilitate the removal of the sample tube 40 from or installation on the collection chamber 30 , the sample tube 40 and the collection chamber 30 are detachably connected.

[0034] In one embodiment, the tube mouth of the sample tube 40 is threadedly connected to the collection chamber 30 .

[0035] In one embodiment, the tube mouth of the sample tube 40 is connected to the collection chamber 30 in a snap-fit ​​connection, which is convenient for disassembly and assembly.

[0036] In one embodiment, to ensure that the sampling tube 10 and the sample tube 40 are connected to the collection chamber 30, the collection chamber 30 includes at least a first tube opening 31 and a second tube opening 32, the tube end of the sampling tube 10 is arranged at the position of the first tube opening 31, and the sample tube 40 is arranged at the position of the second tube opening 32.

[0037] In one embodiment, the collecting bin 30 is olive-shaped or ellipsoidal in shape as a whole, the first pipe opening 31 is installed at the small-sized end of the collecting bin 30, and the second pipe opening 32 is installed at the waist of the collecting bin 30 and faces downward. By starting the suction device, the powder inside the collecting bin 30 can enter the second pipe opening 32, so that the powder can reliably enter the sample tube 40.

[0038] In one embodiment, in order to implement the quick connection and removal of the sample tube 40 and the second tube opening 32 , the sample tube 40 and the second tube opening 32 are threadedly connected.

[0039] In one embodiment, in order to enable the sampling tube 10 to extend into the material pile and suck the powder in the material pile, a fixed bracket 11 is provided at one end of the sampling tube 10, one end of the spiral push rod 20 is fixedly connected to the fixed bracket 11, and the other end of the spiral push rod 20 is connected to a telescopic mechanism, and the telescopic mechanism drives the spiral push rod 20 to move along the length direction of the sampling tube 10 and links the sampling tube 10 to telescope.

[0040] In one embodiment, one end of the sampling tube 10 is in a conical tube shape, which is convenient for the operator to operate the detection device to extend into the powder pile of the material for suction. By driving the telescopic mechanism, the sampling tube 10 is in a telescopic state and can be extended into a deeper position of the powder pile, thereby ensuring the accuracy of sample suction.

[0041] In one embodiment, see Figure 2 In order to extend or shorten the sampling tube 10, the telescopic mechanism includes a rotating bearing 21 arranged at one end of the spiral push rod 20, the spiral push rod 20 is connected to the inner ring of the rotating bearing 21, the outer ring of the rotating bearing 21 is provided with a telescopic thread segment 211, the telescopic thread segment 211 cooperates with the telescopic nut 212, the outer wall of the telescopic nut 212 is provided with a gear ring 213, the gear ring 213 is meshed with a driving gear 215, and the driving gear 215 is connected to a driving motor 214.

[0042] In one embodiment, when the sampling tube 10 is extended and retracted, the fixed bracket 11 at one end of the sampling tube 10 forms a rotatable connection with one end of the spiral push rod 20. The fixed bracket 11 can provide rotational support for the spiral push rod 20, and by starting the drive motor 214, the telescopic nut 212 rotates, thereby driving the spiral push rod 20 to slide along the axial direction, thereby realizing the extension and retraction of the sampling tube 10, so that the sampling tube 10 can be extended into a deeper position of the powder pile, so as to achieve the stability of the suction sample and ensure the reliability of the final sample.

[0043] In one embodiment, in order to implement rotational support for the telescopic nut 212, one end of the telescopic nut 212 is rotatably set on a bracket 216, and the bracket 216 is fixed in the collection bin 30. It can provide real-time rotational support for the telescopic nut 212, and can also implement support for the outer ring of the rotating bearing 21, so that the rotating bearing 21 can slide along the length direction of the collection tube 10.

[0044] In one embodiment, in order to ensure that the spiral pushing rod 20 can rotate to push the powder in the sampling tube 10, a telescopic tube 22 is provided at one end of the spiral pushing rod 20, and the telescopic tube 22 forms a sliding connection with the plug-in tube 23. One end of the plug-in tube 23 is connected to a rotating motor 24, and the rotating motor 24 is fixed on the collection bin 30.

[0045] In one embodiment, when the spiral push rod 20 drives the sampling tube 10 to extend and retract, the insertion tube 23 can rotate on the rotating bearing 21 and form a sliding fit with the insertion tube 23, so as to realize the driving of the spiral push rod 20.

[0046] In one embodiment, to ensure suction of the material in the collection bin 30 so that the powder can be effectively discharged from the second pipe opening 32 into the sample tube 40 , a branch pipe 321 is provided on the second pipe opening 32 , and the suction port of the suction mechanism is connected to the branch pipe 321 .

[0047] In one embodiment, the suction mechanism is an integrated suction device installed on the collecting bin 30 , which can form a negative pressure in the chamber of the collecting bin 30 , thereby ensuring that the powder can be effectively discharged from the second pipe opening 32 .

[0048] In one embodiment, in order to facilitate hand-holding of the device, a handle 33 is provided on the collection bin 30 .

[0049] In one embodiment, in order to facilitate the supply of power to the suction mechanism and the driving mechanism, the collection bin 30 is further provided with a shoulder strap 34 and a power box, and a battery is provided in the power box.

[0050] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0051] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A powder sampling and testing device, characterized in that: include The sampling tube (10) is in the shape of a corrugated tube as a whole; A spiral push rod (20) is arranged in the sampling tube (10), and a spiral push sheet (201) is arranged on the surface of the spiral push rod (20); A collecting bin (30), one end of the spiral push rod (20) being rotatably disposed at a feed inlet end of the collecting bin (30), and one end of the sampling tube (10) being installed at the feed inlet end of the collecting bin (30); A driving mechanism connected to the spiral push rod (20) and configured to drive the spiral push rod (20); A suction mechanism, installed on the collection bin (30), for sucking the material in the collection bin (30); The sample tube (40) is installed on the collection chamber (30) and is used to collect samples.

2. The powder sampling and detection device according to claim 1, characterized in that: The sample tube (40) and the collection chamber (30) are detachably connected.

3. The powder sampling and detection device according to claim 2, characterized in that: The collection chamber (30) comprises at least a first pipe opening (31) and a second pipe opening (32), the tube end of the sampling tube (10) is arranged at the position of the first pipe opening (31), and the sample tube (40) is arranged at the position of the second pipe opening (32).

4. The powder sampling and detection device according to claim 3, characterized in that: A fixed bracket (11) is provided at one end of the sampling tube (10), one end of the spiral push rod (20) is fixedly connected to the fixed bracket (11), and the other end of the spiral push rod (20) is connected to a telescopic mechanism, and the telescopic mechanism drives the spiral push rod (20) to move along the length direction of the sampling tube (10) and links the sampling tube (10) to telescope.

5. The powder sampling and detection device according to claim 4, characterized in that: The telescopic mechanism comprises a rotating bearing (21) arranged at one end of the spiral push rod (20), the spiral push rod (20) being connected to the inner ring of the rotating bearing (21), the outer ring of the rotating bearing (21) being provided with a telescopic threaded section (211), the telescopic threaded section (211) being matched with a telescopic nut (212), the outer wall of the telescopic nut (212) being provided with a gear ring (213), the gear ring (213) being meshed with a driving gear (215), and the driving gear (215) being connected to a driving motor (214).

6. The powder sampling and detection device according to claim 5, characterized in that: A telescopic tube (22) is provided at one end of the spiral push rod (20), the telescopic tube (22) and the plug-in tube (23) forming a sliding connection, one end of the plug-in tube (23) is connected to a rotating motor (24), and the rotating motor (24) is fixed on the collection bin (30).

7. The powder sampling and detection device according to claim 3, characterized in that: The sample tube (40) is threadably connected to the second tube opening (32).

8. The powder sampling and detection device according to claim 7, characterized in that: The second pipe opening (32) is provided with a branch pipe (321), and the suction opening of the suction mechanism is in communication with the branch pipe (321).

9. The powder sampling and detection device according to claim 1, characterized in that: The collecting bin (30) is provided with a handle (33).

10. The powder sampling and detection device according to claim 1, characterized in that: The collection bin (30) is also provided with a shoulder strap (34) and a power box, and a battery is provided in the power box.

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