Continuous sand and dust collecting detector

By designing a continuous sand and dust collection and detection instrument, which adopts a drum-type structure and a dual-flow guiding structure, multiple small-volume continuous sampling is achieved. This solves the problems of slow response and insufficient stability of existing equipment when dealing with sudden sandstorms, ensuring the accuracy of the samples and the practicality of the equipment.

CN223597311UActive Publication Date: 2025-11-25JILIN AGRICULTURAL UNIV
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Patent Information

Application Number
CN202423093208.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-11-25
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

Existing dust monitoring equipment is slow to respond to sudden dust storms, lacks continuity and comprehensiveness, and is not stable and durable enough in harsh environments, which affects its widespread application.

Method used

A continuous dust collection and detection instrument was designed, including a collection component, a flow guiding component, a connection component, a detection and storage component, and a base mounting component. It adopts a roller structure and a dual flow guiding structure. The roller shaft is driven by a drive motor to rotate, enabling multiple small continuous samplings. Multiple connecting pipes and a confluence valve seat ensure the stability and accuracy of sample transmission.

Benefits of technology

This technology enables multiple small-volume continuous sampling, ensuring the accuracy and stability of dust samples, improving the practicality and continuity of the equipment in harsh environments, and solving the problem of slow response of existing equipment in the face of sudden dust storms.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of continuous sand collection detection, and particularly discloses a continuous sand dust collection detector which comprises a collection assembly, a detection storage assembly and a base mounting assembly which are mechanically connected in sequence from top to bottom, the collecting assembly, the flow guiding assembly, the connecting assembly and the detecting and storing assembly are sequentially connected through pipelines. The flow guide assembly and the detection and storage assembly respectively comprise a suction fan for flow guide to form a double flow guide structure; wherein the collecting assembly used for alternately collecting sand is of a drum type structure, a rolling body of the collecting assembly is formed by connecting n semi-closed independent cavity structures, and each independent cavity structure is provided with a dust inlet matched with an air inlet formed in a drum shell of the collecting assembly for use. According to the utility model, through a sampling mode that the motor is driven to rotate a plurality of collecting boxes, a multiple-time, small-amount and continuous sampling method is realized, so that the accuracy of a later sand and dust sample is ensured, and meanwhile, through the arrangement of a double flow guide structure, the collection loss is less, the error is smaller, and the result is more accurate.
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Description

TECHNICAL FIELD

[0001] The utility model relates to continuous sand collection detection technical field, concretely relates to a continuous sand collection detection instrument. BACKGROUND

[0002] In order to effectively respond to the influence of sandstorm, relevant personnel carry out environmental monitoring and management, the current common sand dust monitoring means mostly adopts manual sampling or automatic monitoring sand collection instrument sampling, wherein, manual sampling mode is time-consuming and laborious, and the limitation of manual method makes the response of the countermeasures for sudden sandstorm slow, and it is difficult to provide timely early warning information, and the common automatic monitoring sand collection instrument is mostly concentrated in specific area or specific particle size range, lacks continuity and comprehensiveness, and the stability and durability of many equipment under harsh environment are still insufficient, which affects its wide application, for example: new flat mouth sand collection instrument, sand collection effective height is 60cm, can rotate 360 degrees, defects: the sand collection efficiency in the wind tunnel does not show obvious regularity with wind speed change, big spring number eight sand collection instrument, namely BSNE, swings with wind direction, has four sand collection boxes, sand inlet width and height are 2cm and 5cm respectively, sand collection efficiency in the wind tunnel is 85%~95%, defects: with the increase of sand collection height, the collection efficiency of small particle size particles reduces, modified Wilson and Cook sand collection instrument, namely MWAC, is less limited by weather factors, is suitable for passive sand collection instrument for long time accurate measurement of saltation wind erosion material, can configure multiple sand collection units, defects: sand collection efficiency is closely related to wind speed and particle size, sand collection efficiency in the wind tunnel is 44%~120%, the design of rotor exists defects, the soft rotor material makes the sand collection unit have large vibration amplitude, influences normal sand collection, and the narrow sand inlet pipe and small sand inlet area of sand collection bottle lead to that the sand delivery rate of MWAC sand collection instrument is low, bag type sand collection instrument belongs to rotary sand collection instrument, can adjust direction, can collect sand delivery of different directions, therefore is suitable for field observation, defects: suitable for specific wind speed area, the bag is easy to fall off.

[0003] Therefore, the technical problem to be solved by the utility model lies in overcoming the defects in the prior art, so as to provide a continuous sand dust sand collection detection instrument. UTILITY MODEL CONTENTS

[0004] Therefore, the technical problem to be solved by the utility model lies in overcoming the defects in the prior art, so as to provide a continuous sand dust sand collection detection instrument.

[0005] A continuous sand dust sand collection detection instrument, comprising: a collection assembly, a flow guide assembly, a connecting assembly, a detection and storage assembly and a base mounting assembly;

[0006] The collection assembly, the detection and storage assembly and the base mounting assembly are sequentially mechanically connected from top to bottom.

[0007] The collecting assembly, the flow guiding assembly, the connecting assembly and the detecting and storing assembly are connected in sequence by pipelines; the flow guiding assembly and the detecting and storing assembly each comprise an air suction fan for guiding flow, thereby forming a double flow guiding structure.

[0008] The collecting assembly for alternately collecting sand is of a drum type structure, and the rolling body of the collecting assembly is composed of n semi-closed independent cavity structures connected with each other, and each independent cavity structure is provided with a dust inlet matched with an air inlet formed on the drum shell of the collecting assembly; n is a positive integer and n≥2.

[0009] Preferably, the collecting assembly is composed of a drum shell, a rolling body arranged in the drum shell, a drum shaft and a driving motor.

[0010] One end of the drum shaft is connected with the driving motor so as to rotate the rolling body connected with the other end of the drum shaft; the other end of the drum shaft penetrates through the drum shell and is connected with the rolling body.

[0011] The drum shell is composed of a guard plate connected with the flow guiding assembly and a collecting cylinder provided with the air inlet.

[0012] Preferably, the semi-closed independent cavity structure is composed of a baffle and a collecting box; the collecting box is provided with the dust inlet connected with the air inlet; the baffle is provided with the dust outlet connected with the flow guiding assembly.

[0013] The other end of the drum shaft is provided with a clamping strip matched with the clamping groove on the collecting box.

[0014] The n clamping strips are distributed in a ring shape.

[0015] Preferably, the flow guiding assembly comprises a flow guiding box, a first air suction fan and a first filter element.

[0016] One side of the flow guiding box is provided with an opening and is sealingly connected with the opening on the guard plate.

[0017] The flow guiding box is fixedly connected with the first air suction fan at a side away from the guard plate.

[0018] The first filter element is arranged in the flow guiding box at a side close to the first air suction fan so as to prevent sand and dust from entering the first air suction fan.

[0019] Preferably, the connecting assembly comprises a flow guiding pipe, a connecting pipe and a confluence valve seat connected in sequence.

[0020] The L-shaped flow guiding pipe is connected by pipelines with the connecting pipe and the confluence valve seat.

[0021] The upper end of the L-shaped flow guiding pipe is connected with the flow guiding box in a conductive manner.

[0022] The confluence valve seat is provided with valves at the inlet and the outlet, thereby forming a double valve structure.

[0023] Preferably, the detection storage assembly comprises a storage box, a box door, a second air suction fan, a sampling box sampling filter plate and a second filter core;

[0024] The sampling box is arranged in the storage box;

[0025] One side of the sampling box is in communication connection with the confluence valve seat, and the other side of the sampling box is provided with the sampling filter plate; and a second filter core is arranged in the sampling box and close to the sampling filter plate;

[0026] The side of the storage box close to the sampling filter plate is provided with an opening connected with the box door; and the box door is fixedly provided with the second air suction fan in communication.

[0027] Preferably, the base mounting assembly comprises a base plate, positioning rods, a rotating sleeve and limiting blocks;

[0028] The base plate is provided with a plurality of positioning rods penetrating through the bottom outer edge of the storage box;

[0029] The rotating sleeve is rotatably connected to the positioning rods above the bottom outer edge of the storage box; the top of the rotating sleeve is threadedly connected with the limiting blocks; and each limiting block is clamped with each corner of the storage box.

[0030] Preferably, the utility model further comprises a support frame, wherein the support frame is a reverse gantry structure;

[0031] The bottom of the support frame is connected with the top of the detection storage assembly;

[0032] The two supporting legs of the support frame are connected with the two ends of the collection assembly.

[0033] The utility model technical scheme has the following advantages:

[0034] 1、in the utility model, the driving motor is started to drive the rotation of the roller shaft; under the clamping effect of the clamping strip and the clamping groove, the four collection boxes are driven to rotate in the collection cylinder; when the dust inlet arranged on one of the collection boxes is aligned with the air inlet, the sand dust enters the inside of the collection box; under the action of the first air suction fan, the collection box connected with the flow guide box at the bottom is drawn into the flow guide box for storage; the sampling method of driving the rotation of the four collection boxes by the driving motor can realize the sampling method of multiple small amounts and continuous sampling, thereby ensuring the accuracy of the sand dust sample in the later stage.

[0035] 2、The utility model discloses a connecting pipe is set up in the sand dust sample transmission process, and the sand dust sample is divided under the action of the connecting pipe, avoids the sample from being unable to normally transmit after one connecting pipe is blocked, further under the action of the three -way confluence valve seat, can open one side near the connecting pipe with the sampling box one side's electromagnetic valve, makes sand dust sample can enter the sampling box and store, thereby improved the practicality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in prior art, the following will be briefly introduced the drawing needed to be used in the specific embodiment or prior art description, obviously, the drawing in the following description is some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0037] Figure 1 It is the front view of a continuous sand dust sand collecting instrument of the utility model;

[0038] Figure 2 It is the split drawing of a continuous sand dust sand collecting instrument of the utility model;

[0039] Figure 3 It is the split drawing of the drum shell in a continuous sand dust sand collecting instrument of the utility model;

[0040] Figure 4 It is the internal structure schematic view of the drum body in a continuous sand dust sand collecting instrument of the utility model;

[0041] Figure 5 It is the split drawing of the detection and storage assembly in a continuous sand dust sand collecting instrument of the utility model;

[0042] Figure 6 It is the structure diagram of the flow guide assembly in a continuous sand dust sand collecting instrument of the utility model;

[0043] Figure 7 It is the structure diagram of the base installation assembly in a continuous sand dust sand collecting instrument of the utility model.

[0044] Reference signs:

[0045] 1-collecting assembly;11-collecting box;111-dust inlet;112-dust outlet hole;113-baffle;114-clamping groove;12-drum shaft;121-clamping strip;13-support frame;14-guard plate;15-air inlet;16 driving motor;17-collecting cylinder;

[0046] 2- flow guide assembly; 21- flow guide box; 22- first suction fan; 23- first filter core; 24- flow guide port;

[0047] 3- connection assembly; 31- flow guide pipe; 32- connection pipe; 33- confluence valve seat;

[0048] 4- detection storage assembly; 41- storage box; 42- box door; 43- second suction fan; 44- sampling box; 45- sampling filter plate; 46- second filter core;

[0049] 5- base mounting assembly; 51- base plate; 52- positioning insertion rod; 53- rotating sleeve; 54- limiting block. DETAILED DESCRIPTION

[0050] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0051] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0053] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0054] Example 1:

[0055] As Figures 1-2The embodiment discloses a continuous sand-dust collecting and detecting device, which comprises a collecting assembly 1, a flow guiding assembly 2, a connecting assembly 3, a detecting and storing assembly 4 and a base mounting assembly 5.

[0056] The collecting assembly 1, the detecting and storing assembly 4 and the base mounting assembly 5 are sequentially and mechanically connected from top to bottom.

[0057] The collecting assembly 1, the flow guiding assembly 2, the connecting assembly 3 and the detecting and storing assembly 4 are sequentially and pipeline-connected; the flow guiding assembly 2 and the detecting and storing assembly 4 both comprise air suction machines for guiding flow, thus forming a double flow guiding structure.

[0058] The collecting assembly 1 for alternately collecting sand is of a drum type structure, and the rolling body of the collecting assembly 1 is composed of n half-closed independent cavity structures, each of which is provided with a dust inlet 111 matched with an air inlet 15 formed on the drum shell of the collecting assembly 1; n is greater than or equal to 2, and n is a positive integer.

[0059] Specifically,

[0060] As an improved embodiment, the collecting assembly 1 in the embodiment is composed of a drum shell, a rolling body arranged in the drum shell, a drum shaft 12 and a driving motor 16.

[0061] As Figure 3 One end of the drum shaft 12 is connected with the driving motor 16, so that the rolling body connected with the other end of the drum shaft 12 rotates; the other end of the drum shaft 12 penetrates through the drum shell and is connected with the rolling body.

[0062] The drum shell is composed of a guard plate 14 connected with the flow guiding assembly 2 and a collecting cylinder 17 provided with the air inlet 15. The embodiment further comprises a support frame 13 which is of an inverted gantry structure; the bottom of the support frame 13 is connected with the top end of the detecting and storing assembly 4; and two support legs of the support frame 13 are connected with two ends of the collecting assembly 1. In the embodiment, the side of the collecting cylinder 17 close to the flow guiding assembly is sealed by the guard plate 14, and the collecting cylinder 17 is erected at a high place by the support frame 13; the length of the support frame 13 can be set according to requirements, so that the collecting cylinder 17 is erected at different heights, and further, the rotation of the drum shaft 12 is powered under the action of the driving motor 16.

[0063] As Figure 4 The half-closed independent cavity structure is composed of a baffle 113 and a collecting box 11; the collecting box 11 is provided with the dust inlet 111 connected with the air inlet 15; and the baffle 113 is provided with a dust outlet hole 112 connected with the flow guiding assembly 2.

[0064] The other end of the drum shaft 12 is provided with a clamping strip 121 matched with the clamping groove 114 on the collection box 11, so that the collection box 11 is fixed on the drum shaft 12 through the clamping relationship between the clamping groove 114 and the clamping strip 121;

[0065] And the n clamping strips 121 are annularly distributed. Under the action of the clamping strip 121 and the clamping groove 114, when the drum shaft 12 rotates, the n collection boxes 11 are simultaneously driven to rotate, and the plurality of dust inlets 111 are alternately brought to the air inlet 15 to alternately sample the dust in the external air.

[0066] In the embodiment, n = 4, and the number of collection boxes 11 is 4, which is the best effect. In actual application, the number of collection boxes 11 can be set according to actual demand accuracy. Compared with the traditional sampling method, the embodiment can realize multiple small and continuous sampling methods, thereby ensuring the accuracy of the dust sample in the later stage and solving the technical problem of continuous sand sampling.

[0067] As an improved embodiment, the flow guide assembly 2 comprises a flow guide box 21, a first air suction fan 22 and a first filter element 23.

[0068] The flow guide box 21 is provided with an opening on one side and is sealingly connected with the opening on the guard plate 14.

[0069] The flow guide box 21 is fixedly connected with the first air suction fan 22 on the side away from the guard plate 14.

[0070] The first filter element 23 is arranged on the side close to the first air suction fan 22 in the flow guide box 21, so as to prevent the dust from entering the first air suction fan 22. The flow guide box 21 is provided with a flow guide opening 24 at the bottom for connecting with the connecting assembly 3. In the embodiment, under the action of the first air suction fan 22, the dust in the collection box 11 connected with the flow guide box 21 is sucked into the flow guide box 21 and discharged through the flow guide opening 24. At this time, under the action of the first filter element 23, the dust is prevented from entering the first air suction fan 22 and damaging the first air suction fan 22.

[0071] It should be noted that in actual application, the dust sand sampler of the embodiment can provide a sampling mode based on external environment self-sampling.

[0072] The external environment self-sampling: the same collection box 11 is connected with only one of the air inlet 15 or the flow guide assembly 2.

[0073] In the embodiment, the connecting assembly 3 comprises a flow guide pipe 31, a connecting pipe 32 and a confluence valve seat 33 connected in sequence.

[0074] The L-shaped flow guide pipe 31 is connected through a plurality of connecting pipes 32 and the confluence valve seat 33.

[0075] The upper end of the L-shaped flow guide pipe 31 is in communication with the flow guide port 24 of the flow guide box 21.

[0076] The confluence valve seat 33 is provided with valves at the inlet and outlet, forming a double valve structure.

[0077] It should be noted that in the present embodiment, the number of connecting pipes 32 is 3, and the confluence valve seat 33 corresponds to a three-way confluence valve seat; one valve is arranged on the confluence valve seat 33 and each connecting pipe 32; in the present embodiment, a total of 4 valves are arranged in the confluence valve seat 33, and an electromagnetic valve is specifically used. The dust passing through the flow guide port 24 is divided into three connecting pipes 32 under the action of the flow guide pipe 31, and the three connecting pipes 32 are arranged to avoid sampling failure caused by blockage of one connecting pipe. The divided dust reflows into the three-way confluence valve seat, and under the action of the three-way confluence valve seat, a group of valves matched with the three-way confluence valve seat are opened or closed according to needs, so that the dust enters the sampling box 44.

[0078] Further, comparison and illustration: in the present embodiment, the connecting pipe 32 and the flow guide pipe 31 are both telescopic hard pipes, and the telescopic amount is matched with the height of the supporting frame 13; although the soft pipe is better for dredging in conventional other fields, since the application environment of the present embodiment is mostly severe windy environment, the ordinary soft pipe is easy to bend and block, and the special soft pipe that is not easy to bend has high cost, so the hard pipe is designed in the present embodiment.

[0079] In the present embodiment, the detection storage assembly 4 includes a storage box 41, a box door 42, a second air suction fan 43, a sampling box 44, a sampling filter plate 45, and a second filter core 46.

[0080] The sampling box 44 is arranged in the storage box 41.

[0081] One side of the sampling box 44 is in communication with the confluence valve seat 33; for example, Figure 5 The other side of the sampling box 44 is a sampling filter plate 45; for example, Figure 6 A second filter core 46 is arranged in the sampling box 44 close to the sampling filter plate 45; specifically, the sampling filter plate 45 is rotationally connected to the opening of the sampling box 44.

[0082] For example, Figure 6 The opening of the storage box 41 close to the sampling filter plate 45 is sealingly connected with the box door 42; the second air suction fan 43 is fixedly communicated on the box door 42.

[0083] It should be noted that by setting up the storage component 4, the sand and dust sample in the connecting component 3 is drawn into the sampling box 44 for storage under the action of the second suction fan 43. By setting up the through hole on the sampling filter plate 45, the second suction fan 43 allows the air in the sampling box 44 to circulate, thereby achieving the suction and guiding effect. Furthermore, under the action of the second filter element 46, the sand and dust sample is blocked to prevent the sand and dust sample from being lost.

[0084] In this embodiment, the base mounting assembly 5 includes: a base plate 51, a positioning rod 52, a rotating sleeve 53, and a limiting block 54;

[0085] The base plate 51 is provided with multiple positioning rods 52 that penetrate the outer edge of the bottom of the storage box 41;

[0086] The positioning rod 52 is rotatably connected to the rotating sleeve 53 above the bottom outer edge of the storage box 41. The top of the rotating sleeve 53 is threadedly connected to the limiting block 54, and each limiting block 54 is engaged with each corner of the storage box 41.

[0087] like Figure 7 As shown, the storage box 41 in this embodiment is square. In actual application, the shape of the sampling box can be set according to actual needs. Based on the square shape, the limiting block 54 in this embodiment includes four blocks.

[0088] It should be noted that the overall device in this embodiment is installed under the action of the mounting base assembly 5. Since the overall device is often used in sand rings, the positioning rod 52 is used instead of bolts for more stable installation. During use, the positioning rod 52 is inserted into the base plate 51. After the positioning rod 52 is inserted to the specified depth, the limiting block 54 is threadedly connected to the top of the rotating sleeve 53. At this time, under the action of the limiting block 54, it is locked and limited by the protrusion on the storage box 41. During the placement and use, the positioning rod 52 moves upward.

[0089] Comparative explanation: Traditional height control methods mostly involve raising the height from the bottom mounting structure, or do not have a height control structure at all; however, in this embodiment, the height is not controlled from the mounting base assembly 5, but from the support frame 13 used to support the collection cylinder 17, which makes it more stable than traditional technology.

[0090] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A continuous sand and dust collection and detection instrument, characterized in that, include: The components include a collection component (1), a flow guiding component (2), a connection component (3), a detection and storage component (4), and a base mounting component (5). The collection component (1), the detection and storage component (4), and the base mounting component (5) are mechanically connected from top to bottom; The collection component (1), the flow guiding component (2), the connection component (3), and the detection and storage component (4) are connected by pipes in sequence; both the flow guiding component (2) and the detection and storage component (4) contain a suction fan for flow guiding, forming a dual flow guiding structure; Among them, the collection component (1) used for alternating sand collection is a roller structure. The rolling body of the collection component (1) is composed of n semi-closed independent cavity structures connected together. Each independent cavity structure is provided with a dust inlet (111) which is used in conjunction with the air inlet (15) opened on the roller shell of the collection component (1); n≥2, n is a positive integer.

2. The sand and dust collection and detection instrument according to claim 1, characterized in that, The collecting assembly (1) consists of a drum shell, rolling elements placed inside the drum shell, a drum shaft (12), and a drive motor (16); One end of the roller shaft (12) is connected to the drive motor (16) to make the rolling element connected to the other end of the roller shaft (12) rotate; the other end of the roller shaft (12) passes through the roller shell and is connected to the rolling element. The drum shell is composed of a guard plate (14) connected to the flow guide assembly (2) and a collection cylinder (17) with an air inlet (15).

3. The sand and dust collection and detection instrument according to claim 2, characterized in that, The semi-enclosed independent cavity structure is composed of a baffle (113) and a collection box (11); the collection box (11) is provided with a dust inlet (111) connected to the air inlet (15); the baffle (113) is provided with a dust outlet (112) connected to the flow guiding component (2). The other end of the roller shaft (12) is provided with a snap-fit ​​strip (121) that is compatible with the snap-fit ​​groove (114) on the collection box (11). And the n snap-fit ​​strips (121) are arranged in a ring.

4. The sand and dust collection and detection instrument according to claim 3, characterized in that, The flow guiding assembly (2) includes: a flow guiding box (21), a first suction fan (22), and a first filter element (23); The flow guide box (21) has an opening on one side, which is sealed to the opening on the guard plate (14); The first suction fan (22) is fixedly connected to the side of the flow guide box (21) away from the guard plate (14); A first filter element (23) is provided inside the flow box (21) on the side near the first suction fan (22) to prevent sand and dust from entering the first suction fan (22).

5. The sand and dust collection and detection instrument according to claim 4, characterized in that, The connecting assembly (3) includes a guide pipe (31), a connecting pipe (32), and a confluence valve seat (33) connected in sequence. The L-shaped guide pipe (31) is connected to the confluence valve seat (33) via multiple connecting pipes (32); The upper port of the L-shaped guide tube (31) is electrically connected to the guide box (21); The confluence valve seat (33) is equipped with valves at both the inlet and outlet, forming a double valve structure.

6. The sand and dust collection and detection instrument according to claim 5, characterized in that, The testing storage component (4) includes: a storage box (41), a box door (42), a second suction fan (43), a sampling box (44), a sampling filter plate (45), and a second filter element (46). The sampling box (44) is placed inside the storage box (41); One side of the sampling box (44) is connected to the confluence valve seat (33); the other side of the sampling box (44) is a sampling filter plate (45); a second filter element (46) is provided inside the sampling box (44) near the sampling filter plate (45). The storage box (41) has an opening near the sampling filter plate (45) and is connected to the box door (42); a second suction fan (43) is fixedly connected to the box door (42).

7. The sand and dust collection and detection instrument according to claim 6, characterized in that, The base mounting assembly (5) includes: a base plate (51), a positioning rod (52), a rotating sleeve (53), and a limiting block (54); The base plate (51) is provided with a plurality of positioning rods (52) that penetrate the outer edge of the bottom of the storage box (41). The positioning rod (52) is rotatably connected to a rotating sleeve (53) above the bottom outer edge of the storage box (41). The top of the rotating sleeve (53) is threadedly connected to a limiting block (54), and each limiting block (54) is engaged with each corner of the storage box (41).

8. The sand and dust collection and detection instrument according to claim 7, characterized in that, It also includes a support frame (13), which is an inverted gantry structure; The bottom of the support frame (13) is connected to the top of the detection and storage component (4); The two support legs of the support frame (13) are connected to the two ends of the collection assembly (1).

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