Sample cassette opening and closing device

Abstract

The application relates to the technical field of accessories of air sample feeding equipment, and provides a sample box opening and closing cover equipment, which comprises a mounting frame, a clamping mechanism and at least two groups of clamping mechanisms. The mounting frame comprises a top plate, a bottom plate and oppositely arranged first and second side plates. The clamping mechanism comprises a telescopic assembly and a clamping assembly. The telescopic assembly is arranged on the top plate in the vertical direction, the clamping assembly is located below the top plate and is fixedly connected with the bottom end of the telescopic assembly, and the clamping assembly is used for clamping a sample box cover. The at least two groups of clamping mechanisms are located below the clamping mechanism and are respectively mounted on the first and second side plates and used for clamping a sample box body. The application does not need manual opening of the cover, only needs to place the sample box on the clamping assembly, can automatically realize opening or closing of the sample box cover through cooperation of the telescopic assembly and the clamping mechanism, avoids hidden troubles caused by manual opening of the cover, and is higher in efficiency compared with manual opening and closing of the cover.

Description

Technical Field

[0001] The invention relates to the technical field of pneumatic sample delivery equipment accessories, in particular to a sample box cover opening and closing device. Background Art

[0002] Pipeline transportation is widely used in cement, steel, coal, building materials, and food industries. In order to ensure product quality and facilitate the transfer between sampling sites and laboratories, pneumatic sample delivery has been widely used. Among them, the sample delivery box, as a carrier of the sample, is one of the necessary components of the pneumatic sample delivery system.

[0003] In the related art, after the air conveying system transports the sample box to the receiving station, it is necessary to manually open the sample box lid and then take out the sample inside. However, since the compression deformation of the sample box lid is relatively large, manual prying is not only laborious and easy to scratch the sample box lid, but also prone to erroneous operations such as violently opening the sample box lid and incompletely closing the lid, thereby affecting the normal transportation of the sample box in the sample delivery pipeline and the service life of the sample box, posing a safety hazard.

[0004] Although there are currently opening and closing cover devices such as linkage mechanisms on the market, they still cannot achieve the automatic opening function of the sample box and still require manual operation. Summary of the Invention

[0005] The invention provides a sample box cover opening and closing device, which is used to solve the defects in the prior art that manual opening of the sample box cover is laborious, easily damages the sample box, and reduces the service life of the sample box, and realizes the automatic opening and closing function of the sample box.

[0006] The present invention first provides a sample box cover opening and closing device, comprising:

[0007] The mounting frame includes a top plate, a bottom plate, and a first side plate and a second side plate that are oppositely arranged;

[0008] The clamping mechanism includes a telescopic component and a clamping component. The telescopic component is vertically inserted into the top plate. The clamping component is located below the top plate and is fixedly connected to the bottom end of the telescopic component. The clamping component is used to clamp the sample box cover.

[0009] At least two groups of clamping mechanisms are located below the clamping mechanism and are respectively installed on the first side plate and the second side plate for clamping the sample box body.

[0010] According to an embodiment provided by the present invention, the telescopic assembly includes a driving part and a telescopic rod, the driving part is arranged on the top plate, one end of the telescopic rod is connected to the driving part, and the other end passes through the top plate and is connected to the clamping assembly.

[0011] According to an embodiment provided by the present invention, the clamping assembly includes a guide block, which is fixedly connected to the end of the telescopic rod, and the guide block is configured with a limiting channel on both sides of the first side panel and the second side panel, and the relative inner side walls of the first side panel and the second side panel are configured with a limiting guide rail matching the limiting channel.

[0012] According to an embodiment provided by the present invention, the clamping assembly also includes a clamping portion, which is arranged below the guide block. The clamping portion is vertically penetrated by a circular arc-shaped notch, and an arc-shaped clamping block extends inward along the circular arc-shaped notch on the lower surface of the clamping portion.

[0013] According to an embodiment provided by the present invention, the center line of the arc-shaped notch coincides with the axis of the telescopic rod, and at least two elastic limiting members are provided on the inner side surface at the end position of the arc-shaped clamping block.

[0014] According to an embodiment provided by the present invention, the clamping mechanism includes a driving assembly, a driving rod and a clamp, the driving assembly is arranged on the outside of the first side plate or the second side, one end of the driving rod is connected to the driving assembly, and the other end passes through the first side plate or the second side plate and is connected to the clamp, and is used to drive the clamp to move in the horizontal direction through the drive of the driving assembly.

[0015] According to an embodiment provided by the present invention, the clamping mechanism further includes a positioning block fixed on the inner wall or outer wall of the first side plate or the second side plate, and the driving rod is passed through the positioning block.

[0016] According to an embodiment provided by the present invention, it also includes a collection box, which is arranged between the top plate and the bottom plate and connects the side edges of the first side plate and the second side plate. The side wall of the collection box facing the clamping mechanism is provided with multiple through holes.

[0017] According to an embodiment provided by the present invention, it further includes a negative pressure pipe, which is arranged above and below the collection box and is connected to the collection box.

[0018] The present invention also provides a sample box opening and closing device, comprising a first opening and closing device and a second opening and closing device symmetrically arranged; and a mounting frame, comprising a top plate, a bottom plate, and first and second side plates arranged opposite to each other;

[0019] The first opening and closing cover device or the second opening and closing cover device includes:

[0020] The clamping mechanism includes a telescopic component and a clamping component. The telescopic component is vertically inserted into the top plate. The clamping component is located below the top plate and is fixedly connected to the bottom end of the telescopic component. The clamping component is used to clamp the sample box cover.

[0021] At least two groups of clamping mechanisms are located below the clamping mechanism and are respectively installed on the first side plate and the second side plate for clamping the sample box body.

[0022] The sample box opening and closing device provided by the present invention provides a telescopic component and a clamping component on the top plate, and provides a clamping mechanism on the first and second opposite side plates. During the process of opening or closing the lid, the sample box is passively clamped in the clamping component, and then the sample box body is clamped by the clamping mechanism. Finally, the telescopic component drives the clamping component to move up or down, thereby driving the sample box lid to move up or down, completing the opening or closing operation of the sample box. This arrangement does not require manual opening of the lid. It only requires placing the sample box on the clamping component, and then the sample box can be automatically opened or closed through the cooperation of the telescopic component and the clamping mechanism, avoiding the hidden dangers caused by manual opening of the lid, and is more efficient than manual opening and closing of the lid.

[0023] Furthermore, the sample box lid opening and closing device provided in this embodiment, by providing a symmetrical but structurally identical first and second lid opening and closing devices, can not only simultaneously perform lid opening and closing operations on the sample box, thereby increasing the efficiency of lid opening and closing, but the lid opening and closing devices on both sides can meet the processing requirements under different working conditions, thereby achieving both fully automated operation and temporary manual operation. The sample box lid opening and closing device provided in this example is simple to operate, avoids the occurrence of manual lid opening and closing errors, and to a certain extent increases the service life of the sample box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a structural schematic diagram of the sample box cover opening and closing device (including the sample box) provided by the present invention;

[0026] Figure 2 This is the second structural diagram of the sample box cover opening and closing device (excluding the sample box) provided by the present invention;

[0027] Figure 3 The present invention provides Figure 2 A schematic diagram of the structure of the middle part;

[0028] Figure 4 The present invention provides Figure 2 A magnified schematic diagram of the structure of middle B;

[0029] Figure 5 It is a side structural schematic diagram of the sample box cover opening and closing device (including the sample box) provided by the present invention.

[0030] Reference numerals:

[0031] 10. Mounting frame; 11. Top plate; 12. Bottom plate; 13. First side plate; 131. Position limiting guide rail; 14. Second side plate; 15. Collection box; 16. Position limiting member; 17. Negative pressure pipe; 18. Detection mechanism;

[0032] 20. Clamping mechanism; 21. Telescopic assembly; 211. Driving unit; 212. Telescopic rod; 22. Clamping assembly; 221. Guide block; 2211. Limiting channel; 222. Clamping portion; 2221. Arc-shaped notch; 2222. Arc-shaped clamping block; 2223. Elastic limiting member;

[0033] 30. Clamping mechanism; 31. Driving assembly; 32. Clamp; 33. Positioning block;

[0034] 40. Sample box; 41. Sample box cover; 42. Sample box body;

[0035] 50. First opening and closing cover device;

[0036] 60. Second opening and closing cover device. DETAILED DESCRIPTION

[0037] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0038] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0039] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0040] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0042] This exemplary embodiment first provides a sample box cover opening and closing device, which is used to open and close the sample box 40 in the air delivery system. Figure 1 As shown, the sample box cover opening and closing device includes: a mounting frame 10 , a clamping mechanism 20 and at least two groups of clamping mechanisms 30 .

[0043] The mounting frame 10 includes a top plate 11, a bottom plate 12 and a first side plate 13 and a second side plate 14 arranged opposite to each other; the clamping mechanism 20 includes a telescopic component 21 and a clamping component 22, the telescopic component 21 is vertically penetrated on the top plate 11, the clamping component 22 is located below the top plate 11, and is fixedly connected to the bottom end of the telescopic component 21, and the clamping component 22 is used to clamp the sample box cover 41; at least two groups of clamping mechanisms 30 are located below the clamping mechanism 20, and are respectively installed on the first side plate 13 and the second side plate 14, for clamping the sample box body 42.

[0044] Specifically, the telescopic assembly 21 arranged on the top plate 11 can move in the vertical direction. When the sample box 40 is placed on the clamping assembly 22 arranged at the bottom end of the telescopic assembly 21, the clamping mechanism 30 arranged on the first side plate 13 and the second side plate 14 below clamps the sample box body 42 to prevent the sample box body 42 from moving when the clamping mechanism 20 pulls the sample box cover 41 upward.

[0045] In actual application, the initial setting position of the clamping mechanism 20 can be set so that when the sample box 40 is placed on the clamping component 22, the bottom of the sample box 40 is at a certain distance from the bottom plate 12 to avoid direct contact with the bottom plate 12 when placing the sample box 40, thereby affecting the accuracy of the placement of the sample box 40. The specific distance between the sample box 40 and the bottom plate 12 can be set to 2 mm, but there is no specific restriction.

[0046] In addition, the sample box cover 41 can be clamped on the clamping component 22 by the robotic arm, and then the clamping mechanism 20 opens the sample box cover 41, and then the sample box body 42 is taken out by the robotic arm, and the sample in the box is poured out, and then the dust removal mechanism cleans the inside of the sample box 40, and then the sample box body 42 is placed on the bottom plate 12 by the robotic arm, and the sample box body 42 is clamped by the clamping mechanism 30, and finally the clamping mechanism 20 presses the previously lifted sample box cover 41 onto the sample box body 42, thereby completing the closing operation of the sample box 40.

[0047] In this embodiment, by providing a telescopic assembly 21 and a clamping assembly 22 on the top plate 11, and providing a clamping mechanism 30 on the opposite first side plate 13 and second side plate 14, during the process of opening or closing the lid, the sample box 40 is passively clamped in the clamping assembly 22, and then the sample box body 42 is clamped by the clamping mechanism 30. Finally, the telescopic assembly 21 drives the clamping assembly 22 to move up or down, thereby driving the sample box lid 41 to move up or down, completing the opening or closing operation of the sample box 40. This arrangement does not require manual opening of the lid. Only the sample box 40 needs to be placed on the clamping assembly 22, and the telescopic assembly 21 and the clamping mechanism 30 can automatically open or close the lid of the sample box 40 through the cooperation of the telescopic assembly 21 and the clamping mechanism 30, thereby avoiding the hidden dangers caused by manual opening of the lid and being more efficient than manual opening and closing.

[0048] The following will refer to Figures 1 to 5 The structures of the various parts of the sample box opening and closing device in this exemplary embodiment are described in more detail.

[0049] like Figure 2 and Figure 3As shown, in one embodiment, the telescopic assembly 21 includes a driving part 211 and a telescopic rod 212, the driving part 211 is arranged on the top plate 11, one end of the telescopic rod 212 is connected to the driving part 211, and the other end passes through the top plate 11 and is connected to the clamping assembly 22.

[0050] Specifically, the driving unit 211 can be configured as a two-stroke cylinder and mounted above the top plate 11. The top plate 11 is provided with a mounting hole, through which the telescopic rod 212 connected to the driving unit 211 can pass and extend below the top plate 11. The gripping assembly 22 is disposed below the top plate 11 and fixedly connected to the end of the telescopic rod 212.

[0051] It should be noted that in order to ensure that the sample box 40 is in a suspended state when placed on the clamping assembly 22, the distance that the telescopic rod 212 extends out of the double-stroke cylinder can be adjusted. When pulling the sample box cover 41 upward, it is necessary to ensure that the sample box cover 41 is completely separated from the sample box body 42 to ensure that the robotic arm or manual labor can smoothly remove the sample box body 42.

[0052] Combine Figure 5 As shown, it can be further understood that the telescopic rod 212 has three stop states during the entire process of opening and closing the lid. The first stop state is the state of placing the sample box 40. At this time, the upper end of the telescopic rod 212 is at a distance h from the bottom end of the driving unit 211, which can ensure that the placed sample box 40 is at a distance h from the bottom plate 12, that is, it remains in a suspended state, avoiding the problem of the sample box 40 being tilted or difficult to place due to friction between the bottom of the sample box 40 and the bottom plate 12 when the robot or manual placement of the sample box 40. The second stop state is that the upper end of the telescopic rod 212 is in close contact with the bottom end of the driving unit 211. At this time, the bottom end of the sample box 40 is located on the bottom plate 12, which facilitates the clamping mechanism 30 to clamp the sample box body 42, so that the sample box cover 41 is tightly closed on the sample box body 42 when the telescopic rod 212 moves down to the lowest point. The third stop state is the open cover state. Because the sample box cover 41 and the sample box body 42 have a nesting distance, the telescopic rod 212 needs to rise to a certain height to ensure that the sample box cover 41 is completely separated from the sample box body 42, so that the robot arm or manual can smoothly take out the sample box body 42 and put the sample back into the sample box body 42 after pouring out the sample. Figure 2 and Figure 3 As shown, in one embodiment, the clamping assembly 22 includes a guide block 221, which is fixedly connected to the end of the telescopic rod 212, and the guide block 221 is configured with a limiting channel 2211 on both sides of the first side panel 13 and the second side panel 14, and the relative inner side walls of the first side panel 13 and the second side panel 14 are configured with a limiting guide rail 131 matching the limiting channel 2211.

[0053] It should be noted that a threaded hole can be provided in the middle of the guide block 221, and the thread provided at the end of the telescopic rod 212 is screwed into the threaded hole, thereby achieving a fastened connection between the guide block 221 and the telescopic rod 212. In order to ensure that the clamping assembly 22 does not deviate when moving upward to open the cover, a rectangular limiting channel 2211 is constructed on both sides of the guide block 221 toward the first side plate 13 and the second side plate 14. A limiting guide rail 131 of a certain length is provided on the first side plate 13 and the second side plate 14. The limiting guide rail 131 is adapted for use with the limiting channel 2211. The length of the limiting guide rail 131 is the distance that the clamping assembly 22 needs to move to clamp the sample box cover 41. The specific length can be set according to actual conditions and is not limited here. This setting can avoid the deviation of the clamping assembly 22 caused by uneven sample placement in the sample box 40, which in turn affects the failure of opening or closing the cover.

[0054] like Figure 2 and Figure 3 As shown, in one embodiment, the clamping assembly 22 also includes a clamping portion 222, which is arranged below the guide block 221. The clamping portion 222 is vertically penetrated with an arc-shaped notch 2221, and an arc-shaped clamping block 2222 extends inward along the arc-shaped notch 2221 on the lower surface of the clamping portion 222.

[0055] Specifically, the clamping portion 222 is a rectangular structure, but an arc-shaped notch 2221 is formed from top to bottom on the inner side of the clamping portion 222. That is, the arc-shaped notch 2221 is an arc located in the middle of the clamping portion 222 when viewed from above. The arc of the arc can be 180°, but this is not specifically limited. When viewed from the side, the opening is rectangular, and this rectangular area is used for the sample box cover 41 to enter. The sample box cover 41 is clamped together with the arc-shaped block 2222 formed below the arc-shaped notch 2221. The arc-shaped block 2222 is adapted to the groove formed on the sample box cover 41. Because the diameter of the groove formed on the sample box cover 41 is smaller than the diameter of the sample box cover 41, the sample box cover 41 entering the clamping portion 222 can be easily lifted by the arc-shaped block 2222, thereby realizing the opening operation of the sample box cover 41.

[0056] In one embodiment, the center line of the arc-shaped notch 2221 coincides with the axis of the telescopic rod 212 , and at least two elastic limiting members 2223 are provided on the inner side surface at the end position of the arc-shaped clamping block 2222 .

[0057] It should be understood that in order to ensure that the sample box cover 41 is not offset when opened, it is necessary to ensure that the center of the sample box cover 41 coincides with the axis of the telescopic rod 212, that is, it is necessary to ensure that the center line of the arc-shaped notch 2221 coincides with the axis of the telescopic rod 212.

[0058] In addition, the sample box cover 41 is pushed into the clamping portion 222 by translation. To prevent the sample box 40 from slipping out, at least two elastic limiting members 2223 are provided at the end of the arc-shaped clamping block 2222 toward the sample box 40, so that after the sample box 40 enters the clamping portion 222, the elastic limiting members 2223 are tightly attached to the sample box cover 41, thereby ensuring the stability of the sample box 40 in the clamping portion 222.

[0059] like Figure 2 and Figure 4 As shown, in one embodiment, the clamping mechanism 30 includes a driving component 31, a driving rod and a clamp 32, the driving component 31 is arranged on the outside of the first side plate 13 or the second side, one end of the driving rod is connected to the driving component 31, and the other end passes through the first side plate 13 or the second side plate 14 and is connected to the clamp 32, which is used to drive the clamp 32 to move in the horizontal direction through the drive of the driving component 31.

[0060] It should be understood that the clamping mechanisms 30 provided on the first side plate 13 and the second side plate 14 are symmetrically arranged. The drive assembly 31 can be configured as a drive such as a cylinder, a motor, etc., without limitation. The drive rod can be integrally formed with the clamp 32 or can be detachably connected. The clamp 32 is adapted in shape to the sample box body 42. To increase the friction between the clamp 32 and the sample box body 42, a rubber pad can be provided on the side wall of the clamp 32 facing the sample box body 42.

[0061] like Figure 4 As shown, in one embodiment, the clamping mechanism 30 further includes a positioning block 33 fixed on the inner wall or outer wall of the first side plate 13 or the second side plate 14 , and the driving rod is passed through the positioning block 33 .

[0062] It should be understood that the positioning block 33 is mainly used to support the driving rod. During the opening process, the sample box body 42 exerts an upward force on the clamp 32, and the clamp 32 exerts an upward force on the driving rod connected thereto. In order to avoid bending of the driving rod or damage to the driving assembly 31 connected to the driving rod, a positioning block 33 is provided between the driving assembly 31 and the clamp 32. The positioning block 33 can be provided on the outside of the first side or the second side panel 14, or on the inside. It can be provided according to actual conditions and is not specifically limited here.

[0063] like Figure 2 As shown, in one embodiment, a collection box 15 is further included, which is arranged between the top plate 11 and the bottom plate 12 and connects the side edges of the first side plate 13 and the second side plate 14. The side wall of the collection box 15 facing the clamping mechanism 20 is provided with multiple through holes.

[0064] It is understood that a collection box 15 is also provided behind the first side panel 13 and the second side panel 14. This collection box 15 is primarily used to collect dust generated when the sample box lid 41 is opened. In one example, a negative pressure pipe 17 is also included, which is provided above and below the collection box 15 and is connected to the collection box 15. When the sample box lid 41 is opened, the negative pressure pipe 17 generates negative pressure within the collection box 15, and the airflow drives dust into the through-holes in the side walls of the collection box 15. This arrangement prevents dust from entering the air and polluting the surrounding environment.

[0065] like Figure 2 As shown, the device for opening and closing the lid of the sample box 40 provided in this embodiment further includes a detection mechanism 18, which is disposed on the first side plate 13 or the second side plate 14 and is located below the gripping mechanism 20, and is used to detect the presence of the sample box 40. The detection mechanism 18 is specifically a diffuse reflection proximity switch. When the sample box 40 is placed on the gripping mechanism 20 by a robotic arm or manually, the diffuse reflection proximity switch sends a signal to a controller connected thereto, which controls the gripping mechanism 20 to operate, thereby realizing the lid opening or closing operation.

[0066] The sample box 40 opening and closing device provided in this embodiment also includes a limiter 16, which is arranged on the inner wall of the collection box 15 and faces the position where the sample box 40 is placed. When the sample box 40 is placed in the clamping component 22, the limiter 16 can limit the sample box body 42. Through the clamping and primary limiting of the upper clamping component 22, and the secondary limiting of the lower limiter 16, the sample box 40 is ensured to be placed vertically on the sample box 40 opening device, thereby avoiding the occurrence of operational errors in the process of opening or closing the sample box 40, and increasing the service life of the sample box 40 to a certain extent.

[0067] The present invention also provides a sample box cover opening and closing device, such as Figure 5 As shown, it includes a first opening and closing cover device 50 and a second opening and closing cover device 60 symmetrically arranged; and a mounting frame 10, including a top plate 11, a bottom plate 12 and a first side plate 13 and a second side plate 14 oppositely arranged.

[0068] The first opening and closing cover device 50 or the second opening and closing cover device 60 includes: a clamping mechanism 20, including a telescopic component 21 and a clamping component 22, the telescopic component 21 is vertically penetrated on the top plate 11, the clamping component 22 is located below the top plate 11, and is fixedly connected to the bottom end of the telescopic component 21, and the clamping component 22 is used to clamp the sample box cover 41; at least two groups of clamping mechanisms 30, located below the clamping mechanism 20, and are respectively installed on the first side panel 13 and the second side panel 14, for clamping the sample box body 42.

[0069] It can be understood that the sample box 40 opening and closing device in this example is a double-station setting, and the symmetrically arranged first opening and closing cover device 50 and the second opening and closing cover device 60 are exactly the same in structure, and only the collection box 15 in the above embodiment is shared. Through holes are provided on the opposite side walls of the collection box 15, and then the dust generated by the first opening and closing cover device 50 and the second opening and closing cover device 60 during the opening process is sucked away through the negative pressure pipe 17.

[0070] In addition, the design of the above-mentioned double-station opening and closing cover device can be designed as an area on one side for placing and taking out the sample box 40 by a robotic arm, and this area is fully automated; the other side is designed as an area for manually placing the sample box 40, and a touch panel can be set on the outside of the opening and closing cover device on this side. When the sample box 40 is manually placed on the clamping mechanism 20, it can be operated through the external touch panel to open or close the cover of the sample box 40.

[0071] In this embodiment, by providing a symmetrical but structurally identical first and second opening and closing lid devices 50 and 60, not only can the sample box 40 be opened and closed simultaneously, thereby increasing the efficiency of opening and closing the sample box 40, but the opening and closing lid devices on both sides can meet the processing requirements under different working conditions, thereby achieving both fully automated operation and temporary manual operation. The sample box 40 opening and closing device provided in this example is simple to operate, avoids manual opening and closing errors, and thus increases the service life of the sample box 40 to a certain extent.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A sample box opening and closing device, characterized in that: include: The mounting frame includes a top plate, a bottom plate, and a first side plate and a second side plate that are oppositely arranged; The clamping mechanism includes a telescopic component and a clamping component. The telescopic component is vertically inserted into the top plate. The clamping component is located below the top plate and is fixedly connected to the bottom end of the telescopic component. The clamping component is used to clamp the sample box cover. At least two sets of clamping mechanisms, located below the clamping mechanism and respectively mounted on the first side plate and the second side plate, for clamping the sample box body; The telescopic assembly includes a driving part and a telescopic rod, the driving part is arranged on the top plate, one end of the telescopic rod is connected to the driving part, and the other end passes through the top plate and is connected to the clamping assembly; The clamping assembly includes a guide block, which is fixedly connected to the end of the telescopic rod, and the guide block is configured with a limiting channel on both sides facing the first side plate and the second side plate, and the inner side walls opposite to each other of the first side plate and the second side plate are configured with a limiting guide rail matching the limiting channel; The clamping assembly further includes a clamping portion, which is arranged below the guide block. The clamping portion is vertically penetrated by a circular arc notch, and an arc-shaped clamping block extends inwardly along the circular arc notch on the lower surface of the clamping portion. The center line of the arc-shaped notch coincides with the axis of the telescopic rod, and at least two elastic limiting members are provided on the inner side surface at the end position of the arc-shaped clamping block; The clamping mechanism includes a driving assembly, a driving rod and a clamp. The driving assembly is arranged on the outside of the first side plate or the second side plate. One end of the driving rod is connected to the driving assembly, and the other end passes through the first side plate or the second side plate and is connected to the clamp, and is used to drive the clamp to move in the horizontal direction through the drive of the driving assembly.

2. The sample box opening and closing device according to claim 1, characterized in that: The clamping mechanism further includes a positioning block fixed on the inner side wall or the outer side wall of the first side plate or the second side plate, and the driving rod is passed through the positioning block.

3. The sample box opening and closing device according to claim 1, characterized in that: It also includes a collection box, which is arranged between the top plate and the bottom plate and connects the side edges of the first side plate and the second side plate. The side wall of the collection box facing the clamping mechanism is provided with multiple through holes.

4. The sample box opening and closing device according to claim 3, characterized in that: It also includes a negative pressure pipeline, which is arranged above and below the collection box and is communicated with the collection box.

5. A sample box opening and closing device, characterized in that: It comprises a first opening and closing cover device and a second opening and closing cover device which are symmetrically arranged; and a mounting frame comprising a top plate, a bottom plate, and a first side plate and a second side plate arranged opposite to each other; The first opening and closing cover device or the second opening and closing cover device includes: The clamping mechanism includes a telescopic component and a clamping component. The telescopic component is vertically inserted into the top plate. The clamping component is located below the top plate and is fixedly connected to the bottom end of the telescopic component. The clamping component is used to clamp the sample box cover. At least two sets of clamping mechanisms, located below the clamping mechanism and respectively mounted on the first side plate and the second side plate, for clamping the sample box body; The telescopic assembly includes a driving part and a telescopic rod, the driving part is arranged on the top plate, one end of the telescopic rod is connected to the driving part, and the other end passes through the top plate and is connected to the clamping assembly; The clamping assembly includes a guide block, which is fixedly connected to the end of the telescopic rod, and the guide block is configured with a limiting channel on both sides facing the first side plate and the second side plate, and the inner side walls opposite to each other of the first side plate and the second side plate are configured with a limiting guide rail matching the limiting channel; The clamping assembly further includes a clamping portion, which is arranged below the guide block. The clamping portion is vertically penetrated by a circular arc notch, and an arc-shaped clamping block extends inwardly along the circular arc notch on the lower surface of the clamping portion. The center line of the arc-shaped notch coincides with the axis of the telescopic rod, and at least two elastic limiting members are provided on the inner side surface at the end position of the arc-shaped clamping block; The clamping mechanism includes a driving assembly, a driving rod and a clamp. The driving assembly is arranged on the outside of the first side plate or the second side. One end of the driving rod is connected to the driving assembly, and the other end passes through the first side plate or the second side plate and is connected to the clamp, and is used to drive the clamp to move in the horizontal direction through the drive of the driving assembly.

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