Sealable eriocheir sinensis tissue sample collection box

By designing a sealable crab tissue sample collection box, and using snap-fit ​​components and an auxiliary sealing structure, the problem of sample leakage during transportation was solved, achieving a reliable seal of the collection box and ensuring the accuracy of the test results.

CN224393459UActive Publication Date: 2026-06-23CHANGZHOU CHANGJIAN YINUO FOOD TESTING CENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU CHANGJIAN YINUO FOOD TESTING CENT CO LTD
Filing Date
2025-08-06
Publication Date
2026-06-23

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Abstract

The utility model discloses a sealed eriocheir sinensis tissue sample collection box, apply in sample collection technical field, including box, the rear side of box is connected with the apron through the axle pin swing, the inner chamber fixed mounting of box has the deposit storehouse, the both sides of box front side all are connected with the clamping component through the axle pin swing, the clamping component includes the clamping plate, the rear side of clamping plate is fixed with apron mounting, the both sides of box and apron front side and rear side all are clamped with supplementary sealing component. When needing to increase the sealing property of the collection box sealed through the clamping component, the user unfolds the supplementary sealing component at this moment, the positioning shell in supplementary sealing component is contacted with the box, and is fixed after through bolt and box, then clamps the positioning plate and apron, fixes supplementary sealing component between box and apron through the resilience of limiting spring, to increase the sealing property of the collection box sealed through the clamping component.
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Description

Technical Field

[0001] This utility model belongs to the field of sample collection technology, and specifically relates to a sealable tissue sample collection box for hairy crabs. Background Technology

[0002] The mitten crab sample collection box is a container specifically designed for collecting tissue samples from mitten crabs. As an economically important aquatic animal, mitten crabs are frequently used in scientific research, such as disease research and genetic analysis, as well as quality testing, such as food safety testing and quality assessment, where tissue samples often need to be collected. This collection box is designed specifically for the characteristics of mitten crab tissues, effectively collecting, preserving, and transporting mitten crab tissue samples, providing excellent conditions for subsequent analysis and testing.

[0003] Currently, Chinese utility model patent CN221933950U discloses a blood sample collection box, including a collection box with a cover hinged to the top surface and anti-slip legs fixedly installed at the bottom. The collection box contains test tubes and a processing assembly inside. The processing assembly includes a clamping assembly inside the collection box and a disassembly assembly below the clamping assembly. When test tubes need to be stored, the cover is opened, and a sliding ring is pushed upwards. Because the clamping plate slides against the inner wall of the third limiting groove, and the clamping plate slides against the first limiting groove on the outer wall of the placement cylinder, and the limiting block fixedly installed on the inner wall of the first limiting groove slides against the second limiting groove on the outer wall of the clamping plate, under these constraints, when the sliding ring drives the third limiting groove on its outer wall to slide upwards, the inner wall of the inclined groove on the inner wall of the third limiting groove slides and is pressed against the sliding column fixedly installed on the outer wall of the clamping plate.

[0004] During transport, the sample collection box is sealed using two snap-fit ​​structures at the front. If it is bumped, vibrated, or accidentally dropped during transport, the crab tissue sample collection box may leak. This leakage will not only result in sample loss but also interfere with subsequent testing and analysis, leading to inaccurate test results. Utility Model Content

[0005] The purpose of this invention is to provide a sealable crab tissue sample collection box. Its advantage is that it increases the sealing effect of the collection box during transportation, preventing leakage of liquid carried by the crab tissue sample when encountering bumps, vibrations, or accidental drops.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a sealable crab tissue sample collection box, including a box body, a cover plate movably connected to the rear side of the box body via a pivot pin, a placement compartment fixedly installed in the inner cavity of the box body, and snap-fit ​​components movably connected to both sides of the front side of the box body via pivot pins. The snap-fit ​​components include snap-fit ​​plates, the rear side of which is fixedly installed to the cover plate. Auxiliary sealing components are snapped onto both sides of the front and rear sides of the box body and the cover plate. The auxiliary sealing components include two positioning shells, the inner cavity of which is snapped onto the box body, and an extension component is fixedly installed between the two positioning shells.

[0007] The above technical solution is as follows: When it is necessary to increase the sealing performance of the collection box that is sealed by the snap-fit ​​assembly, the user unfolds the auxiliary sealing assembly, contacts the positioning shell in the auxiliary sealing assembly with the box body, and fixes it to the box body with bolts. Then, the positioning plate is snapped onto the cover plate. The elasticity of the limit spring fixes the auxiliary sealing assembly between the box body and the cover plate, thereby increasing the sealing performance of the collection box that is sealed by the snap-fit ​​assembly. If it is necessary to adjust the spacing of the auxiliary sealing assembly during use, the user presses the extension assembly and rotates the knob. The knob drives the threaded rod in the assembly to rotate inside the assembly. When the threaded rod rotates, it connects with the threaded sleeve in the assembly, which drives the connecting frame connected to it away from the limit shell. When the connecting frame moves, it drives the auxiliary sealing assembly to move synchronously, thereby completing the adjustment of the spacing of the auxiliary sealing assembly.

[0008] The present invention is further configured such that the snap-fit ​​assembly includes a movable shell, the side of the movable shell near the housing is movably connected to the housing via a pivot pin, a return spring is fixedly installed on both sides of the inner cavity of the movable shell, a movable rod is fixedly installed at the bottom of the return spring, a buckle is fixedly installed through the movable shell at the top of the movable rod, and the bottom of the buckle snaps into the snap-fit ​​plate.

[0009] The above technical solution is adopted: the movable shell is connected to the box body by a pivot pin, which allows the snap-fit ​​assembly to rotate flexibly, facilitating the opening and closing of the cover. The return spring pushes the movable rod to drive the buckle to return downward, so that the buckle is tightly snapped into the snap-fit ​​plate, achieving the initial sealing and fixation of the box body and the cover. Stretching the movable rod can compress the return spring, causing the buckle to disengage from the snap-fit ​​plate, making it easy to open the cover. The structure is simple and easy to operate, providing basic sealing protection for the collection box.

[0010] The present invention is further configured such that the top of the cover plate is movably connected to two auxiliary handles by means of a pivot pin, and the opposite sides of the two auxiliary handles are engaged with each other.

[0011] The above technical solution provides a convenient force point for opening and closing the cover by using an auxiliary grip, making it easy for users to carry and transport the collection box. The pin connection allows the grip to be folded and stored when not in use, reducing space occupation.

[0012] The present invention is further configured such that a limiting spring is fixedly installed at the top of the inner cavity of the positioning shell, a positioning rod is fixedly installed at the bottom of the limiting spring, the top of the positioning rod extends through to the top of the positioning shell and a positioning plate is fixedly installed thereon, and the inner cavity of the positioning plate is engaged with the cover plate.

[0013] The above technical solution is adopted: the positioning rod is pushed by the limiting spring to move the positioning plate downward, so that the positioning plate is tightly locked with the cover plate. Together with the locking of the positioning shell and the box body, an auxiliary sealing structure is formed to enhance the sealing performance at the connection between the box body and the cover plate. The locking design of the positioning plate can be flexibly adapted to the opening and closing of the cover plate. The elasticity of the limiting spring ensures that the sealing pressure can still be maintained when the cover plate is slightly deformed, thus improving the sealing reliability.

[0014] The present invention is further configured such that a plurality of bolts are threadedly connected to the side of the positioning shell away from the box body, and the side of the bolts close to the box body is threadedly connected to the box body.

[0015] The above technical solution uses bolts to fix the position of the positioning shell and the housing during use, ensuring the installation stability of the auxiliary sealing components and preventing them from loosening or falling off during transportation or use, which would affect the sealing effect. The number of bolts can be increased or decreased according to the actual use, providing stable support for the auxiliary sealing structure and enhancing the overall sealing performance.

[0016] The present invention is further configured such that a retaining shell and a retaining rod are fixedly installed on the bottom of opposite sides of the two positioning shells, and the inner cavity of the retaining shell is slidably connected to the retaining rod.

[0017] The above technical solution is adopted: by sliding the retaining rod in the inner cavity of the retaining shell, the relative movement of the two positioning shells is guided, ensuring that they remain parallel during the spacing adjustment process, avoiding positional deviation during adjustment, and preventing the positioning shells from tilting when subjected to force, thus ensuring the fitting accuracy of the sealing surface.

[0018] The present invention is further configured such that the extension component includes two limiting shells, the side of the limiting shells near the box body is in contact with the box body, a bidirectional threaded rod is rotatably connected between the opposite sides of the inner cavities of the two limiting shells, a knob is fixedly installed on the surface of the bidirectional threaded rod, the surface of the knob is rotatably connected to the limiting shell, a threaded sleeve is threadedly connected to the opposite side of the surface of the bidirectional threaded rod, a connecting frame is fixedly installed on the opposite side of the two threaded sleeves, and the opposite side of the two connecting frames is fixedly installed with the positioning shell.

[0019] The above technical solution involves rotating a knob to drive a bidirectional threaded rod, which in turn drives two threaded sleeves to move synchronously in opposite directions along the inner cavity of the limiting shell using the reverse threads on its surface. This, in turn, causes the two positioning shells to move away from or closer to each other via a connecting bracket. Alternatively, one connecting bracket can be pulled directly, and the reverse threads on the surface of the bidirectional threaded rod can be used to move the other connecting bracket away from the limiting shell. Fine adjustments can then be made using a knob to achieve precise adjustment of the spacing between the auxiliary sealing components, adapting to different sizes of housings and covers. The limiting shell provides stable support for the bidirectional threaded rod and threaded sleeves, ensuring a smooth adjustment process. The knob design facilitates manual control of the adjustment range, improving operational flexibility.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. When it is necessary to increase the sealing performance of the collection box that is sealed by the snap-fit ​​assembly, the user unfolds the auxiliary sealing assembly, contacts the positioning shell in the auxiliary sealing assembly with the box body, and fixes it to the box body with bolts. Then, the positioning plate is snapped onto the cover plate. The elasticity of the limit spring fixes the auxiliary sealing assembly between the box body and the cover plate, thereby increasing the sealing performance of the collection box that is sealed by the snap-fit ​​assembly.

[0022] 2. When it is necessary to adjust the spacing of the auxiliary sealing component during use, the user presses and holds the extension component and rotates the knob. The knob drives the threaded rod in the component to rotate inside the component. When the threaded rod rotates, it connects with the threaded sleeve in the component, which drives the connecting bracket connected to it away from the limiting shell. When the connecting bracket moves, it drives the auxiliary sealing component to move synchronously, thereby completing the adjustment of the spacing of the auxiliary sealing component. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a partial structural exploded view of this utility model;

[0025] Figure 3 This is a utility model Figure 2 Enlarged view of the local structure at point A;

[0026] Figure 4 This is an exploded view of the auxiliary sealing component of this utility model;

[0027] Figure 5 This is an exploded view of the extension component of this utility model.

[0028] Reference numerals: 1. Box body; 2. Cover plate; 3. Storage compartment; 4. Snap-fit ​​assembly; 401. Movable shell; 402. Return spring; 403. Movable rod; 404. Buckle; 405. Snap-fit ​​plate; 5. Auxiliary sealing assembly; 501. Positioning shell; 502. Limiting spring; 503. Positioning rod; 504. Positioning plate; 505. Bolt; 6. Extension assembly; 601. Limiting shell; 602. Two-way threaded rod; 603. Knob; 604. Threaded sleeve; 605. Connecting frame; 7. Auxiliary handle; 8. Retention shell; 9. Retention rod. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example 1:

[0031] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A sealable crab tissue sample collection box includes a box body 1. A cover plate 2 is movably connected to the rear side of the box body 1 via a pivot pin. A placement chamber 3 is fixedly installed inside the box body 1. Both sides of the front side of the box body 1 are movably connected to a snap-fit ​​assembly 4 via pivot pins. The snap-fit ​​assembly 4 includes a snap-fit ​​plate 405. The rear side of the snap-fit ​​plate 405 is fixedly installed to the cover plate 2. Both sides of the front and rear sides of the box body 1 and the cover plate 2 are snapped with auxiliary sealing assemblies 5. The auxiliary sealing assembly 5 includes two positioning shells 501. The inner cavity of the positioning shell 501 is snapped with the box body 1.

[0032] Furthermore, the snap-fit ​​assembly 4 includes a movable housing 401. The side of the movable housing 401 closest to the housing 1 is movably connected to the housing 1 via a pivot pin. Return springs 402 are fixedly installed on both sides of the inner cavity of the movable housing 401. A movable rod 403 is fixedly installed at the bottom of the return spring 402. A buckle 404 is fixedly installed through the movable housing 401 at the top of the movable rod 403. The bottom of the buckle 404 snaps into the snap-fit ​​plate 405.

[0033] Furthermore, the top of the cover plate 2 is movably connected to two auxiliary grips 7 via pivot pins, and the opposite sides of the two auxiliary grips 7 are engaged with each other.

[0034] Furthermore, a limiting spring 502 is fixedly installed at the top of the inner cavity of the positioning shell 501, and a positioning rod 503 is fixedly installed at the bottom of the limiting spring 502. The top of the positioning rod 503 extends through to the top of the positioning shell 501 and a positioning plate 504 is fixedly installed thereon. The inner cavity of the positioning plate 504 is engaged with the cover plate 2.

[0035] Furthermore, the positioning shell 501 has several bolts 505 threadedly connected to the side away from the housing 1, and the bolts 505 are threadedly connected to the housing 1 on the side closer to the housing 1.

[0036] Furthermore, a retaining shell 8 and a retaining rod 9 are fixedly installed on the bottom of opposite sides of the two positioning shells 501, and the inner cavity of the retaining shell 8 is slidably connected to the retaining rod 9.

[0037] Brief description of usage: After the release spring 402 causes the movable rod 403 to engage with the latch 404 and engage with the latching plate 405, thus sealing the housing 1 and cover 2, if it is necessary to further enhance the sealing of the housing 1 and cover 2, the user unfolds the auxiliary sealing assembly 5, contacts the positioning shell 501 in the auxiliary sealing assembly 5 with the housing 1, and fixes it to the housing 1 with bolts 505. Then, the positioning plate 504 is latched with the cover 2, and the release spring 502 fixes the auxiliary sealing assembly 5 between the housing 1 and cover 2, thereby increasing the sealing through the latch 404 assembly. The collection box is sealed; the movable shell 401 is connected to the housing 1 by a pivot pin, allowing the snap-fit ​​assembly 4 to rotate flexibly, facilitating the opening and closing of the cover 2. The return spring 402 pushes the movable rod 403 to drive the buckle 404 downward to reset, so that the buckle 404 is tightly engaged with the snap-fit ​​plate 405, achieving initial sealing and fixation between the housing 1 and the cover 2. Stretching the movable rod 403 can compress the return spring 402, causing the buckle 404 to disengage from the snap-fit ​​plate 405, facilitating the opening of the cover 2. The structure is simple and easy to operate, providing basic sealing protection for the collection box; the auxiliary handle 7 provides a convenient force application point for opening and closing the cover 2. The collection box is designed for easy carrying and transportation. The pivot pin connection allows the handle to be folded and stored when not in use, reducing space usage. A limiting spring 502 pushes the positioning rod 503, causing the positioning plate 504 to move downwards, tightly engaging with the cover plate 2. This, combined with the engagement of the positioning shell 501 with the housing 1, forms an auxiliary sealing structure, enhancing the seal at the connection between the housing 1 and the cover plate 2. The engagement design of the positioning plate 504 flexibly adapts to the opening and closing of the cover plate 2. The elasticity of the limiting spring 502 ensures that sealing pressure is maintained even with slight deformation of the cover plate 2, improving sealing reliability. Bolt 505... The positioning shell 501 and the housing 1 are fixed in position during use to ensure the installation stability of the auxiliary sealing component 5 and prevent it from loosening and falling off during transportation or use, which would affect the sealing effect. The number of bolts 505 can be increased or decreased according to the actual use, providing stable support for the auxiliary sealing structure and enhancing the overall sealing performance. The sliding of the retaining rod 9 in the inner cavity of the retaining shell 8 provides guidance for the relative movement of the two positioning shells 501, ensuring that they remain parallel during the spacing adjustment process, preventing positional deviation during adjustment, and preventing the positioning shell 501 from tilting under force, thus ensuring the fitting accuracy of the sealing surface.

[0038] Example 2:

[0039] refer to Figure 1 and Figure 4A sealable crab tissue sample collection box includes two positioning shells 501, an extension component 6 is fixedly installed between the two positioning shells 501, a knob 603 is fixedly installed on the surface of a bidirectional threaded rod 602, the surface of the knob 603 is rotatably connected to the limiting shell 601, threaded sleeves 604 are threadedly connected to opposite sides of the surface of the bidirectional threaded rod 602, connecting brackets 605 are fixedly installed on opposite sides of the two threaded sleeves 604, and the opposite sides of the two connecting brackets 605 are fixedly installed to the positioning shells 501.

[0040] Brief description of usage: When adjusting the spacing of the auxiliary sealing assembly 5, the user presses down on the limiting shell 601 and rotates the knob 603. The knob 603 drives the threaded rod to rotate within the limiting shell 601. As the threaded rod rotates, it drives the connecting frame 605 away from the limiting shell 601 through the threaded connection with the threaded sleeve 604. The movement of the connecting frame 605 synchronously drives the auxiliary sealing assembly 5 to move, thereby adjusting the spacing of the auxiliary sealing assembly 5. Rotating the knob 603 drives the bidirectional threaded rod 602 to rotate, using its reverse threads to drive the two threaded sleeves 604 along the limiting shell. The inner cavity of 601 moves synchronously in opposite directions, thereby driving the two positioning shells 501 to move away from or towards each other via the connecting bracket 605. Alternatively, one side of the connecting bracket 605 can be pulled directly, and the reverse threads on the surface of the bidirectional threaded rod 602 can drive the other side of the connecting bracket 605 away from the limiting shell 601. Fine adjustments can then be made via the knob 603 to achieve precise adjustment of the spacing of the auxiliary sealing components 5, adapting to different sizes of housing 1 and cover plate 2. The limiting shell 601 provides stable support for the bidirectional threaded rod 602 and threaded sleeve 604, ensuring a smooth adjustment process. The knob 603 facilitates manual control of the adjustment range, improving operational flexibility. It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance standards. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0041] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A sealable crab tissue sample collection box, comprising a box body (1), characterized in that: The rear side of the box (1) is movably connected to the cover plate (2) by a pivot pin. The inner cavity of the box (1) is fixedly installed with a storage compartment (3). Both sides of the front side of the box (1) are movably connected to the snap-fit ​​assembly (4) by a pivot pin. The snap-fit ​​assembly (4) includes a snap-fit ​​plate (405). The rear side of the snap-fit ​​plate (405) is fixedly installed with the cover plate (2). Both sides of the front and rear sides of the box (1) and the cover plate (2) are snapped with auxiliary sealing assemblies (5). The auxiliary sealing assembly (5) includes two positioning shells (501). The inner cavity of the positioning shell (501) is snapped with the box (1). An extension assembly (6) is fixedly installed between the two positioning shells (501).

2. The sealable crab tissue sample collection box according to claim 1, characterized in that: The snap-fit ​​assembly (4) includes a movable shell (401). The side of the movable shell (401) closest to the housing (1) is movably connected to the housing (1) via a pivot pin. Both sides of the inner cavity of the movable shell (401) are fixedly installed with return springs (402). The bottom of the return spring (402) is fixedly installed with a movable rod (403). The top of the movable rod (403) passes through the movable shell (401) and is fixedly installed with a buckle (404). The bottom of the buckle (404) is snapped with the snap-fit ​​plate (405).

3. The sealable crab tissue sample collection box according to claim 1, characterized in that: The top of the cover plate (2) is movably connected to two auxiliary handles (7) by a pivot pin, and the two auxiliary handles (7) are engaged with each other on opposite sides.

4. The sealable crab tissue sample collection box according to claim 1, characterized in that: A limiting spring (502) is fixedly installed at the top of the inner cavity of the positioning shell (501), and a positioning rod (503) is fixedly installed at the bottom of the limiting spring (502). The top of the positioning rod (503) extends through to the top of the positioning shell (501) and a positioning plate (504) is fixedly installed thereon. The inner cavity of the positioning plate (504) is engaged with the cover plate (2).

5. The sealable crab tissue sample collection box according to claim 4, characterized in that: The positioning shell (501) has several bolts (505) threadedly connected to the side away from the box body (1), and the bolts (505) are threadedly connected to the box body (1) on the side closer to the box body (1).

6. The sealable crab tissue sample collection box according to claim 4, characterized in that: The bottom of the two positioning shells (501) on opposite sides are respectively fixedly installed with a retaining shell (8) and a retaining rod (9), and the inner cavity of the retaining shell (8) is slidably connected to the retaining rod (9).

7. The sealable crab tissue sample collection box according to claim 1, characterized in that: The extension component (6) includes two limiting shells (601). The side of the limiting shell (601) close to the box body (1) is in contact with the box body (1). A bidirectional threaded rod (602) is rotatably connected between the opposite sides of the inner cavity of the two limiting shells (601). A knob (603) is fixedly installed on the surface of the bidirectional threaded rod (602). The surface of the knob (603) is rotatably connected to the limiting shell (601). A threaded sleeve (604) is threadedly connected to the opposite side of the surface of the bidirectional threaded rod (602). A connecting frame (605) is fixedly installed on the opposite side of the two threaded sleeves (604). The opposite side of the two connecting frames (605) is fixedly installed with the positioning shell (501).

Citation Information

Patent Citations

  • Blood sample collection box

    CN221933950U