Detection device and detection method

Abstract

This application provides a detection device and method, relating to the field of material detection technology. The detection device is used to install a probe assembly and includes a sleeve, a limiting part, a pressure block, and a pressing member. The sleeve has an inner cavity extending through both ends along its axial direction. The probe assembly is disposed in the inner cavity. The limiting part is disposed on the outer wall of the sleeve and communicates with the inner cavity to form a limiting space for accommodating the pressure block. The pressing member is connected to the pressure block to drive the pressure block to move within the limiting space and propel the probe assembly from one end to the other along its axial direction. The pressure block movably abuts against the inner wall of the inner cavity against the probe assembly. The detection device can improve the stability of the probe assembly when it penetrates deep into the material for detection, ensuring the detection accuracy of the material.

Description

Technical Field

[0001] This application relates to the field of material detection technology, and in particular to a detection device and detection method. Background Technology

[0002] Raman spectroscopy, with its non-destructive, high specificity, and rapid response characteristics, has become an important tool for the detection of chemicals, pharmaceuticals, and explosives. Its working principle is based on the Raman scattering phenomenon. By irradiating the sample with a laser, molecules are excited to produce characteristic scattered light, which is then analyzed to determine the sample's molecular structure, composition, and chemical state. The Raman probe, as the core component of this technology, is responsible for transmitting the laser signal to the sample and collecting the scattered light, enabling real-time, non-contact molecular detection. Therefore, it has significant advantages in complex environments and on-site detection.

[0003] Existing Raman probes mostly employ a short focal length design, enabling them to detect only the surface of samples. They struggle to penetrate packaging or reach deep within substances, easily missing potentially hazardous materials and resulting in incomplete detection results. Furthermore, insufficient probe operational stability means that the slender probe is prone to bending or shifting after entering the outer packaging, making accurate optical path alignment difficult and reducing signal quality and measurement precision. These issues limit the effectiveness of Raman probes in deep-penetration detection and complex environments. Summary of the Invention

[0004] The purpose of this application is to solve the aforementioned technical problems by providing a detection device and method, thereby improving the stability of the probe assembly when it penetrates deep into the material for detection and ensuring the detection accuracy of the material. To achieve the above objective, the technical solution of this application is as follows: In a first aspect, this application provides a detection device for installing a probe assembly. The detection device includes a sleeve, a limiting part, a pressure block, and a pressing member. The sleeve is provided with an inner cavity extending through both ends along its axial direction. The probe assembly is disposed in the inner cavity. The limiting part is disposed on the outer wall of the sleeve. The limiting part communicates with the inner cavity to form a limiting space for accommodating the pressure block. The pressing member is connected to the pressure block to drive the pressure block to move within the limiting space and push the probe assembly to move from one end to the other along the axial direction. The pressure block moves against the probe assembly against the inner wall of the inner cavity.

[0005] In a preferred embodiment, the limiting part includes limiting seats that are spaced apart from each other and rollers connected between the opposing limiting seats, with the limiting seats and rollers connected to form a clamp.

[0006] In a further technical solution, the clamp is connected to the inner cavity, and the clamp is arranged through both ends along the axial direction.

[0007] In a preferred embodiment, the pressure block has a wedge-shaped structure. The inner side of the pressure block along the radial direction is a plane, and the outer side of the pressure block along the radial direction is an inclined surface. The distance from one end to the other along the axial direction decreases from the inclined surface to the plane. The plane moves against the probe assembly, and the inclined surface moves against the roller. The pressure block moves along the axial and radial directions within the limiting space.

[0008] In a preferred embodiment, the detection device further includes an elastic element, a pressing element connected to the other end of the pressing block along the axial direction, a fixing part provided on the outer wall of the sleeve, the fixing part being located on the side of the pressing element away from the limiting part, one end of the elastic element being connected to the pressing element, and the other end of the elastic element being connected to the fixing part.

[0009] In a preferred embodiment, the outer wall of the sleeve has an opening along its axial direction, the opening communicating with the inner cavity, and the width of the opening corresponding to the diameter of the probe assembly.

[0010] In a preferred embodiment, the inner wall of the cavity has a wear-resistant layer, and the probe assembly includes an outer tube with an anti-slip layer on its outer wall, the anti-slip layer and the wear-resistant layer being in contact with each other.

[0011] In a further technical solution, a detection window is provided at the end of the outer tube, and the probe assembly also includes a pointed cone. The central axis of the pointed cone is collinear with the central axis of the outer tube. The pointed cone is connected to the outer tube and forms a detection cavity with the detection window. The pointed cone has multiple side openings in its circumference, and the side openings are connected to the detection cavity.

[0012] Secondly, this application provides a detection method using the aforementioned detection device to detect substances. The method includes: assembling the detection device and a probe assembly, wherein the central axis of the probe assembly is perpendicular to the surface of the substance packaging bag; operating the detection device so that the probe assembly pierces and enters the substance packaging bag, wherein the position of the detection device relative to the substance packaging bag is fixed; a pressing member drives a pressing block to move within a limited space, gradually advancing the probe assembly from one end to the other along the axial direction until the pressing block presses the probe assembly against the inner wall of the cavity; the pressing block releases the probe assembly to reset the pressing block, and the previous step is repeated to achieve step-by-step movement of the probe assembly; the probe assembly extends into the substance packaging bag to a preset distance, and the probe assembly detects the substance in the substance packaging bag.

[0013] In a preferred embodiment, after detecting the substance in the packaging bag, the process further includes: detaching the probe assembly from the packaging bag, checking the size of the tear in the packaging bag, and determining the size of the sealing film; covering the opening of the glue delivery tube with the sealing film and inserting it into the packaging bag from the tear; during the process of delivering the glue into the packaging bag, the sealing film is pushed into the packaging bag along with the glue delivery tube, and the sealing film rebounds to cover the tear; a layer of glue remains between the sealing film and the inner layer of the packaging bag, waiting for the glue to solidify, thus sealing the tear with the sealing film.

[0014] Compared with existing technologies, the advantages of the detection device and detection method of this application are mainly reflected in the following aspects: By placing the probe assembly within the inner cavity of the sleeve, the probe assembly can move within the sleeve, maintaining a stable posture relative to the material packaging bag, which facilitates the probe assembly's insertion into the material packaging bag. A limiting part is provided on the outer wall of the sleeve, which communicates with the inner cavity to form a limiting space for accommodating the pressure block. The pressure block forms an effective movement stroke within the limiting space, and the movement of the pressure block synchronously drives the probe assembly to move in steps. The probe assembly operates in short steps, maintaining the stability of the probe assembly's advancement, meeting the needs for in-depth detection of the material packaging bag, avoiding bending or offset problems that occur when the probe assembly is inserted deep into the material packaging bag, and improving the accuracy of the probe assembly's material detection. Attached Figure Description

[0015] Figure 1 A schematic diagram of the assembly of a detection device and a probe assembly provided for an embodiment of this application; Figure 2 for Figure 1 The detection device shown is a cross-sectional schematic diagram of one embodiment; Figure 3 for Figure 1 The diagram shown is a structural schematic of the probe assembly in one embodiment. Figure 4 for Figure 3 The probe assembly shown is a bottom view schematic diagram of one embodiment; Figure 5 This is a schematic diagram of the process of sealing a breach in a detection method provided for an embodiment of this application.

[0016] Figure label: Probe assembly 1, outer tube 11, anti-slip layer 12, detection window 13, pointed cone 14, detection cavity 15, side opening 16, optical cable 17; 2. Sleeve 2, inner cavity 21, opening 22, wear-resistant layer 23; Limiting part 3, limiting space 31, limiting seat 32, roller 33, clamping mouth 34, limiting groove 35; Pressure block 4, plane 41, inclined surface 42; Pressure component 5; Elastic component 6; Fixing part 7; Auxiliary tools 8, sealing film 81, colloid 82, glue delivery tube 83, tear 84. Detailed Implementation

[0017] To make the technical solutions and advantages of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0018] Example 1 This embodiment provides a detection device for mounting a probe assembly 1. The probe assembly 1 can be a long needle-type Raman probe, which reveals the molecular structure, chemical composition, and physical properties of a sample by analyzing the spectral changes when molecules scatter under laser irradiation, thereby enabling the detection of substances. Since the Raman probe has an optical cable 17, it is usually designed as a long needle structure to ensure signal transmission quality, which limits its practical application.

[0019] In related technologies, to directly detect substances in packaging bags and avoid sampling, a long-needle Raman probe is inserted directly into the packaging bag. However, the depth to which the long-needle Raman probe can penetrate the packaging bag is limited, making it difficult to reach deep inside. It only detects the surface layer of the packaging bag, posing a risk of missed detections. Forcibly pushing the long-needle Raman probe into the packaging bag may cause it to bend or shift position, affecting the optical path alignment and reducing the quality of the detection signal. This embodiment solves these problems by designing a detection device to assist the probe assembly in penetrating deeper into the packaging bag. The following is a detailed description. The axial direction is the direction of gravity; the radial direction is perpendicular to the axial direction. The probe assembly 1 is perpendicular to the surface of the packaging bag, and the detection device is installed on the outer periphery of the probe assembly 1 and fixed in position relative to the packaging bag.

[0020] like Figure 1 , Figure 2As shown, the detection device includes a sleeve 2, a limiting part 3, a pressure block 4, and a pressing member 5. The sleeve 2 is provided with an inner cavity 21 extending through both ends along its axial direction. The probe assembly 1 is disposed in the inner cavity 21. The limiting part 3 is disposed on the outer wall of the sleeve 2. The limiting part 3 communicates with the inner cavity 21 to form a limiting space 31 for accommodating the pressure block 4. The limiting part 3 includes limiting seats 32 arranged at relatively intervals and rollers 33 connected between the limiting seats 32. A clamp is formed between the opposing limiting seats 32 and rollers 33. The opening 34 is connected to the inner cavity 21. The clamping opening 34 is provided through both ends along the axial direction. The pressure block 4 can be a wedge-shaped structure. The inner side of the pressure block 4 along the radial direction is a plane 41, and the outer side of the pressure block 4 along the radial direction is an inclined surface 42. The distance from one end to the other along the axial direction decreases from the inclined surface 42 to the plane 41. The plane 41 is movable against the probe assembly 1, and the inclined surface 42 is movable against the roller 33. The pressing member 5 is connected to the pressure block 4 to drive the pressure block 4 to move within the limiting space 31.

[0021] The pressing block 4 can be moved by the pressing element 5. The driving method is not limited to electric, but can also be manual. During the movement of the pressing block 4 in the limiting space 31, the pressing block 4 moves axially and radially. That is, during the descent of the pressing block 4, the flat surface 41 of the pressing block 4 gradually abuts against the probe assembly 1, pressing the probe assembly 1 against the inner wall of the inner cavity 21. The inclined surface 42 of the pressing block 4 abuts against the roller 33, and the roller 33 restricts the movement stroke of the pressing block 4. During this process, the pressing block 4 contacts the probe assembly 1. Using the friction between the pressing block 4 and the probe assembly 1, the pressing block 4 pushes the probe assembly 1 axially from one end to the other. The probe assembly 1 gradually descends until the pressing block 4 is tightly against the probe assembly 1 in the inner cavity 21. The probe assembly 1 stops descending as the pressure block 4 moves upward. During the resetting process, the plane 41 of the pressure block 4 gradually relaxes the probe assembly 1. The probe assembly 1 is in clearance fit with the inner wall of the inner cavity 21, and the inclined surface 42 of the pressure block 4 is in clearance fit with the roller 33. During this process, the probe assembly 1 remains in its original position. The action of the pressure block 4 pushing the probe assembly 1 is repeated to achieve step-by-step movement of the probe assembly 1, that is, the probe assembly 1 descends intermittently until the probe assembly 1 reaches the set distance of the material packaging bag, which can meet the conditions for the probe assembly 1 to detect the internal material of the material packaging bag.

[0022] In this embodiment, the probe assembly 1 is placed in the inner cavity 21 of the sleeve 2. The probe assembly 1 can move within the inner cavity 21 of the sleeve 2, maintaining a stable posture relative to the material packaging bag, which is beneficial for the probe assembly 1 to extend into the material packaging bag. A limiting part 3 is provided on the outer wall of the sleeve 2. The limiting part 3 communicates with the inner cavity 21 to form a limiting space 31 for accommodating the pressure block 4. The pressure block 4 forms an effective moving stroke in the limiting space 31. The movement of the pressure block 4 synchronously drives the probe assembly 1 to move in steps. The step-by-step short-distance operation of the probe assembly 1 maintains the stability of the probe assembly 1, meets the need for in-depth detection of the material packaging bag, avoids bending or displacement problems when the probe assembly 1 extends into the material packaging bag, and improves the accuracy of the probe assembly 1 in detecting the material. The detection device has strong operability and can be adapted to probe assemblies 1 of different diameters, with a wide range of applications.

[0023] In one specific implementation, such as Figure 1 , Figure 2 As shown, the detection device also includes an elastic element 6, a pressing element 5 connected to the other end of the pressing block 4 along the axial direction, a fixing part 7 provided on the outer wall of the sleeve 2, the fixing part 7 being located on the side of the pressing element 5 away from the limiting part 3, one end of the elastic element 6 being connected to the pressing element 5, and the other end of the elastic element 6 being connected to the fixing part 7.

[0024] The pressing member 5 has a roughly rod-shaped structure and is connected to the bottom of the pressing block 4, thus facilitating the operation of the pressing block 4. The elastic member 6 can be a spring. Under the flexural action of the spring, a downward force is applied to the pressing member 5, causing the pressing block 4 to abut against the roller 33. The roller 33 generates a reaction force on the pressing block 4, thereby forming a radial component force on the pressing block 4. The spring is in an energy storage state, and the pressing block 4 descends while gradually abutting against the outer wall of the probe assembly 1 radially. The plane 41 and inclined surface 42 of the pressing block 4 are respectively limited between the probe assembly 1 and the roller 33. When the external force is released, the elastic member 6 can automatically rebound, realizing the reset action of the pressing block 4.

[0025] The fixing part 7 can be a handle. Located below the pressure block 4, the fixing part 7 can be integrated with the sleeve 2 or separate from it. The fixing part 7 keeps the entire detection device in a fixed position relative to the material packaging bag, facilitating operation of the pressure block 4 and providing an installation position for the elastic element 6. The two ends of the elastic element 6 are connected to the pressing member 5 and the fixing part 7, respectively. The elastic element 6 undergoes elastic deformation between the pressing member 5 and the fixing part 7. When the force applied to the pressing member 5 is removed, the spring is in a released state, and the pressure block 4 rises radially away from the outer wall of the probe assembly 1 until it returns to its initial position. The pressure block 4 releases the probe assembly 1 within the limiting space 31, and the pressure block 4 does not generate a force that pushes the probe assembly 1.

[0026] It should be noted that the limiting space 31 is used to accommodate the pressure block 4, and the axial length of the limiting space 31 is greater than the axial length of the pressure block 4, allowing the pressure block 4 to move flexibly upward along the axial direction. For example, a limiting groove 35 is provided on the outer wall of the sleeve 2 to connect the limiting part 3 and the inner cavity 21. The inner cavity 21, the limiting groove 35, and the limiting part 3 are connected to form the limiting space 31. When the bottom wall of the limiting groove 35 abuts against the bottom of the pressure block 4, the pressure block 4 descends to its maximum downward position. When the top wall of the limiting groove 35 abuts against the top of the pressure block 4, the pressure block 4 rises to its maximum upward position. Understandably, the top wall of the limiting groove 35 may not contact the top of the pressure block 4, and the limiting groove 35 may not have an upward limiting requirement for the pressure block 4. However, setting the top wall of the limiting groove 35 to restrict the upward position of the pressure block 4 effectively prevents the pressure block 4 from detaching from the limiting space 31, ensuring that the pressure block 4 moves within the limiting space 31.

[0027] In one specific implementation, such as Figure 1 , Figure 2 As shown, the outer wall of the sleeve 2 has an opening 22 along its axial direction, the opening 22 communicates with the inner cavity 21, and the width W of the opening 22 corresponds to the diameter of the probe assembly 1.

[0028] The cross-section of the sleeve 2 is roughly C-shaped. The probe assembly 1 can be placed inside the sleeve 2 through the opening 22, which avoids the probe assembly 1 from bending when it is installed in the sleeve 2, maintains the perpendicularity of the probe assembly 1, and improves the detection signal quality of the probe assembly 1.

[0029] like Figure 3 , Figure 4 As shown, the probe assembly 1 includes an outer tube 11, and a detection window 13 is provided at the end of the outer tube 11 for detecting substances. The detection device is located on the outer periphery of the outer tube 11 and close to the detection window 13, which shortens the relative distance between the detection device and the substance packaging bag, making the process of the probe assembly 1 entering the substance packaging bag easier and more stable, and avoiding excessive relative distance between the detection device and the substance packaging bag, which would cause the probe assembly 1 to shake and deviate when entering the substance packaging bag.

[0030] In one specific implementation, such as Figure 1 , Figure 2 As shown, the inner wall of the inner cavity 21 has a wear-resistant layer 23, and the outer wall of the outer tube 11 has an anti-slip layer 12. The anti-slip layer 12 and the wear-resistant layer 23 move against each other.

[0031] When the anti-slip layer 12 and the wear-resistant layer 23 come into contact, the frictional force of the contact increases, so that the probe assembly 1 can move stably under force, and avoid the probe assembly 1 slipping when it contacts the pressure block 4 or the inner wall of the inner cavity 21, which would affect the movement stroke of the probe assembly 1.

[0032] Among them, the wear-resistant layer 23 can be a rubber layer, and the anti-slip layer 12 is a raised structure set on the outer wall of the outer tube 11.

[0033] In one specific implementation, such as Figure 3 , Figure 4 As shown, the probe assembly 1 also includes a pointed cone 14, the central axis of which is collinear with the central axis of the outer tube 11. The pointed cone 14 is connected to the outer tube 11 and forms a detection cavity 15 with the detection window 13. The pointed cone 14 has multiple side openings 16 in its circumference, and the side openings 16 are connected to the detection cavity 15.

[0034] The side openings 16 can be three or four, allowing the detection window 13 to effectively detect surrounding materials through the side openings 16, ensuring detection accuracy. The pointed cone 14 effectively protects the detection window 13 from damage before entering the material packaging bag. The pointed cone 14 can pierce the material packaging bag, facilitating the entry of the probe assembly 1 into the interior of the material packaging bag.

[0035] The central axis of the cone 14 is collinear with the central axis of the outer tube 11, that is, the central axis of the cone 14 is parallel to the direction of gravity. Before the probe assembly 1 enters the material packaging bag, the cone 14 is perpendicular to the surface of the material packaging bag, so that the cone 14 pierces the material packaging bag vertically, which is beneficial to the step-by-step movement of the probe assembly 1 in subsequent operations.

[0036] Example 2 This embodiment provides a detection method, employing a detection device as described in Embodiment 1 to detect substances, such as... Figures 1-5 As shown, the method includes: S1. Assemble the detection device and probe assembly 1, with the central axis of probe assembly 1 perpendicular to the surface of the material packaging bag.

[0037] The detection device is installed on the outer tube 11 near the detection window 13. Specifically, the detection device is located above the material packaging bag. The probe assembly 1 is aligned with the position where the material packaging bag will be punctured, and the detection device is kept in a fixed position.

[0038] S2. Operate the detection device so that the probe assembly 1 punctures the material packaging bag and enters the material packaging bag, and the position of the detection device relative to the material packaging bag is fixed.

[0039] When the pointed cone 14 of the probe assembly 1 pierces the material packaging bag, the detection device as a whole does not move, maintaining the balance of the detection device and ensuring that the probe assembly 1 pierces the material packaging bag vertically, avoiding bending problems caused by the probe assembly 1 piercing the material packaging bag at an angle.

[0040] S3, the pressing element 5 drives the pressing block 4 to move within the limiting space 31, gradually advancing the probe assembly 1 from one end to the other along the axial direction until the pressing block 4 presses the probe assembly 1 against the inner wall of the inner cavity 21.

[0041] Specifically, when the pressure block 4 is in the initial position of the limiting space 31, the pressure block 4 is in clearance fit with the outer wall of the probe assembly 1 and the roller 33 respectively; after the downward force is applied to the pressing member 5, the pressure block 4 descends in the limiting space 31 and moves radially closer to the probe assembly 1. At the same time, the elastic member 6 compresses and stores energy. During the movement of the pressure block 4, the probe assembly 1 descends until the plane 41 of the pressure block 4 abuts against the inner wall of the probe assembly 1 to the inner cavity 21, and the inclined surface 42 of the pressure block 4 abuts against the roller 33. The pressure block 4 moves to the maximum downward stroke. At this time, the probe assembly 1 moves downward a certain distance.

[0042] S4. The pressure block 4 releases the probe assembly 1 to reset the pressure block 4. Repeat the previous step to achieve step-by-step movement of the probe assembly 1.

[0043] Specifically, when the force applied to the pressing element 5 is removed, the pressing element 5 is simultaneously subjected to the rebound energy release effect of the elastic element 6, and the pressing block 4 gradually returns to its initial position. The process of the pressing block 4 returning to its initial position does not generate a linkage force on the probe assembly 1, and the probe assembly 1 can remain stable under its own weight. Step S3 is repeated to repeat the process of driving the pressing block 4, thereby realizing the step-by-step descent of the probe assembly 1.

[0044] S5. When the probe assembly 1 extends to the material packaging bag to a preset depth, the pressing component 5 stops moving; the probe assembly 1 detects the material in the material packaging bag.

[0045] The preset distance is the depth of the material inside the packaging bag that the probe assembly 1 needs to detect. The probe assembly 1 detects the distance it moves to determine whether the actual distance it moves inside the packaging bag meets the preset distance. If the actual distance meets the preset distance, the probe assembly 1 stops descending and continues to detect the material inside the packaging bag; if the actual distance does not meet the preset distance, the probe assembly 1 continues to descend until the actual distance meets the preset distance. Using a step-by-step movement method to operate the probe assembly 1 effectively avoids bending or displacement of the probe assembly 1 inside the packaging bag, ensuring that the probe assembly 1 can accurately reach the depth of the material, thus improving the efficiency and quality of the probe assembly 1's detection.

[0046] S6. After detecting the substance in the material packaging bag, the probe assembly 1 is removed from the material packaging bag to check the size of the tear 84 in the material packaging bag and determine the size of the sealing film 81.

[0047] like Figure 5As shown, the diameter of the sealing film 81 is larger than the diameter of the tear 84. The sealing film 81 can be made of a polymer film, which has a certain degree of elasticity and heat resistance. When not deformed, the sealing film 81 can be a disc-shaped structure, which is sufficient to completely seal the tear 84.

[0048] S7. The sealing film 81 is wrapped around the opening of the glue delivery tube 83 and inserted into the material packaging bag from the opening 84. During the process of the glue delivery tube 83 feeding the glue 82 into the material packaging bag, the sealing film 81 is pushed into the material packaging bag together with it. The sealing film 81 rebounds and covers the opening 84.

[0049] The glue delivery tube 83 can be a component of a hot melt gun, specifically a tubular structure that can deliver glue 82. A sealing film 81 can be wrapped around the opening of the glue delivery tube 83 using an auxiliary tool 8. The sealing film 81 deforms at the opening of the glue delivery tube 83 to adapt to and cover the outer wall of the glue delivery tube 83. The auxiliary tool 8 can be a clamp, roughly annular in structure, fitted onto the glue delivery tube 83. The sealing film 81 is positioned between the auxiliary tool 8 and the glue delivery tube 83, with its middle portion abutting against the opening of the glue delivery tube 83. Specifically, the middle portion of the sealing film 81 first abuts against the opening of the glue delivery tube 83, and then the sealing film 81 is fitted using the auxiliary tool 8 to deform and constrain it against the outer wall of the glue delivery tube 83.

[0050] As the glue delivery tube 83 moves, the sealing film 81 enters the packaging bag through the opening 84. Because the sealing film 81 is elastic, when the auxiliary tool 8 releases the sealing film 81 from the glue delivery tube 83, the sealing film 81 automatically rebounds inside the packaging bag and seals the opening 84. The auxiliary tool 8 can move upwards along the axis of the glue delivery tube 83. When the auxiliary tool 8 moves away from the sealing film 81, it releases its constraint on the sealing film 81, and the sealing film 81 automatically rebounds and expands its diameter.

[0051] S8. A layer of adhesive 82 is left between the sealing film 81 and the inner layer of the material packaging bag. The adhesive 82 is left to cure, and the sealing film 81 is used to seal the hole 84.

[0052] Among them, the colloid 82 is a hot melt adhesive, which, after curing, can bond the sealing film 81 to the inner layer of the material packaging bag, thereby achieving the effect of sealing the opening 84.

[0053] Using the above method of sealing the opening 84, the opening 84 left by the probe component 1 piercing the material packaging bag can be effectively sealed. The sealing film 81 is automatically and tightly connected to the inner layer of the material packaging bag by the curing of the colloid 82. The sealing efficiency is high, and the sealing is done from the inside of the material packaging bag, which effectively prevents the material from spilling out of the opening 84.

[0054] It should be noted that the above-mentioned detection device is not limited to Raman probes, and is applicable to any situation similar to this application.

[0055] In the description of this application: Unless otherwise stated, directional terms such as "up" and "down" generally refer to the relative position of the corresponding component in the direction of gravity when it is in use. "Inner" and "outer" refer to the inner and outer contours of the corresponding component itself.

[0056] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0058] Although preferred embodiments of this application have been described, they are not intended to limit the application. It is obvious that those skilled in the art can make various changes and modifications to this application without departing from the inventive concept and scope of this application.

Claims

1. A detection device for mounting a probe assembly (1), characterized in that: The detection device includes a sleeve (2), a limiting part (3), a pressure block (4), and a pressing member (5); the sleeve (2) is provided with an inner cavity (21) extending through both ends along its axial direction, the probe assembly (1) is disposed in the inner cavity (21), the limiting part (3) is disposed on the outer wall of the sleeve (2), the limiting part (3) communicates with the inner cavity (21) to form a limiting space (31) for accommodating the pressure block (4), the pressing member (5) is connected to the pressure block (4) to drive the pressure block (4) to move within the limiting space (31) and push the probe assembly (1) to move from one end to the other along the axial direction, and the pressure block (4) moves against the probe assembly (1) to the inner wall of the inner cavity (21).

2. The detection device according to claim 1, characterized in that: The limiting part (3) includes a limiting seat (32) arranged at relative intervals and a roller (33) connected between the opposing limiting seats (32), the limiting seats (32) and the roller (33) being connected to form a clamp (34).

3. The detection device according to claim 2, characterized in that: The clamp (34) is connected to the inner cavity (21), and the clamp (34) is provided through both ends along the axial direction.

4. The detection device according to claim 2, characterized in that: The pressure block (4) has a wedge-shaped structure. The inner side of the pressure block (4) along the radial direction is a plane (41), and the outer side of the pressure block (4) along the radial direction is an inclined surface (42). From one end to the other along the axial direction, the distance from the inclined surface (42) to the plane (41) decreases. The plane (41) moves against the probe assembly (1), and the inclined surface (42) moves against the roller (33). The pressure block (4) moves along the axial and radial directions within the limiting space (31).

5. The detection device according to claim 1, characterized in that: The detection device also includes an elastic element (6), the pressing element (5) is connected to the other end of the pressing block (4) along the axial direction, the outer wall of the sleeve (2) is provided with a fixing part (7), the fixing part (7) is located on the side of the pressing element (5) away from the limiting part (3), one end of the elastic element (6) is connected to the pressing element (5), and the other end of the elastic element (6) is connected to the fixing part (7).

6. The detection device according to claim 1, characterized in that: The outer wall of the sleeve (2) has an opening (22) along its axial direction, the opening (22) communicating with the inner cavity (21), and the width of the opening (22) corresponding to the diameter of the probe assembly (1).

7. The detection device according to claim 1, characterized in that: The inner wall of the inner cavity (21) has a wear-resistant layer (23), and the probe assembly (1) includes an outer tube (11). The outer wall of the outer tube (11) has an anti-slip layer (12), and the anti-slip layer (12) and the wear-resistant layer (23) are in contact with each other.

8. The detection device according to claim 7, characterized in that: The outer tube (11) is provided with a detection window (13) at its end. The probe assembly (1) also includes a pointed cone (14). The central axis of the pointed cone (14) is collinear with the central axis of the outer tube (11). The pointed cone (14) is connected to the outer tube (11) and forms a detection cavity (15) with the detection window (13). The pointed cone (14) has multiple side openings (16) in the circumferential direction. The side openings (16) are connected to the detection cavity (15).

9. A detection method, employing the detection device as described in any one of claims 1-8 to detect matter, characterized in that, The methods include: The detection device is assembled with the probe assembly (1), wherein the central axis of the probe assembly (1) is perpendicular to the surface of the material packaging bag; The detection device is operated so that the probe assembly (1) pierces and enters the material packaging bag, and the position of the detection device relative to the material packaging bag is fixed. The pressing element (5) drives the pressing block (4) to move within the limiting space (31), gradually pushing the probe assembly (1) from one end to the other along the axial direction until the pressing block (4) presses the probe assembly (1) against the inner wall of the inner cavity (21); The pressure block (4) releases the probe assembly (1) to reset the pressure block (4), and repeats the previous step to achieve step-by-step movement of the probe assembly (1); The probe assembly (1) extends into the material packaging bag to a preset distance, and the probe assembly (1) detects the material in the material packaging bag.

10. The detection method according to claim 9, characterized in that, After testing the substances in the packaging bags, the following steps are also included: The probe assembly (1) detaches from the material packaging bag, checks the size of the tear (84) in the material packaging bag, and determines the size of the sealing film (81); The sealing film (81) is wrapped around the opening of the glue delivery tube (83) and inserted into the material packaging bag from the opening (84); During the process of the glue delivery tube (83) feeding the glue (82) into the material packaging bag, the sealing film (81) is pushed into the material packaging bag together, and the sealing film (81) rebounds to cover the tear (84). The sealing film (81) leaves the colloid (82) between itself and the inner layer of the material packaging bag, and waits for the colloid (82) to solidify, so that the sealing film (81) can seal the opening (84).

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