Sample plate frame clamping jaw device
By designing a sample plate rack jaw device including a drive module, a jaw module and a heat insulation chamber module, the damage caused by the sample during the transfer process is solved, the safe transport of the sample in a low temperature environment is achieved, and the friction and wear of the device is reduced, and the service life is extended.
Patent Information
- Application Number
- CN202421801055.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-07-29
AI Technical Summary
In the prior art, samples are often at room temperature during transport, resulting in sample damage; the low temperature environment of transport equipment may lead to unstable component performance and shortened equipment life; the structure of the jaw device is complex, resulting in increased manufacturing costs and high maintenance difficulties.
A sample plate rack jaw device is designed, including a drive module, a jaw module and a heat insulation cavity module. The jaw module uses eccentric plates and slide rail components to close and loosen the jaws. The slide rail components use rolling friction to reduce friction, and the insulation chamber module uses liquid nitrogen to maintain a low temperature environment.
It realizes the low-temperature environment maintenance of the sample plate rack during transportation, reducing sample damage; reduces friction and wear of equipment components, extends the service life of the device; simplifies the device structure, reduces manufacturing cost and maintenance difficulty.
Smart Images
Figure CN223002303U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of biological sample storage, in particular to a sample plate rack clamping jaw device. Background Art
[0002] In the existing technology, during the process of transporting samples by a plate rack, the samples are often in a normal temperature, non-deep low temperature or ultra-low temperature state, which may damage the samples and cause certain economic losses. When the existing transportation equipment is in a low temperature or non-normal temperature condition, it may cause unstable performance of the components in the equipment, thus shortening the service life of the equipment; moreover, the clamping jaw device for transporting the sample plate rack has a complex structure, which will lead to an increase in manufacturing cost, difficulty in upgrading the equipment, and may increase the maintenance difficulty due to the complex structure during maintenance. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a sample plate rack clamping jaw device, which has a simple structure, can smoothly and accurately clamp the sample plate rack, and enables the sample plate rack to be in a low temperature environment during the transportation process.
[0004] To solve the above technical problems, the utility model provides a sample plate rack clamping jaw device, which includes a driving module, a clamping jaw module and a heat preservation cavity module;
[0005] The clamping jaw module includes an eccentric plate and a slide rail assembly;
[0006] The eccentric plate is provided with a diverging arc-shaped waist groove, the arc-shaped waist groove is arranged in a diverging shape from the center of the eccentric plate, one end of the slide rail assembly is arranged in the arc-shaped waist groove, and the other end of the slide rail assembly is provided with at least two clamping jaws;
[0007] The output end of the driving module is connected to the eccentric plate for providing driving force to the eccentric plate. When the eccentric plate rotates, the slide rail assembly can drive the clamping jaws to close or loosen;
[0008] The heat preservation cavity module includes a cavity and a closing door assembly, the closing door assembly is installed at the opening of the cavity for closing the cavity;
[0009] The clamping jaw module is located in the cavity for grasping the sample plate rack.
[0010] Furthermore, the slide rail assembly includes a slider, a slide rail, a slide rail bracket and a moving shaft; the slider is installed on the slide rail, the slide rail is installed on the slide rail bracket, the interface end of the slider is connected to the clamping jaw, and one end of the moving shaft is installed on the slider and the other end is located in the arc-shaped waist groove.
[0011] Further, the driving module includes a driving motor, a driving motor base, a connecting shaft, and bearings; the driving motor is installed on the driving motor base; one end of the connecting shaft penetrates into the driving motor base and is sleeved on the motor shaft of the driving motor, and the other end is located in the installation groove of the slide rail bracket; the bearings are installed at both ends of the connecting shaft.
[0012] Further, it further includes a main body member; one end of the main body member is installed with the driving motor base, and the other end extends into the cavity and is connected with the slide rail bracket; the connecting shaft is fixed in the main body member through the bearings.
[0013] Further, the cavity includes an outer cavity wall, an inner cavity wall, and a liquid nitrogen area provided between the outer cavity wall and the inner cavity wall; a plurality of frustum-shaped or tooth-shaped convex structures are provided on the inner side surface of the inner cavity wall to increase the heat conduction area.
[0014] Further, the heat conduction coefficient of the outer cavity wall is lower than that of the inner cavity wall.
[0015] Further, the outer cavity wall is made of fiberglass, and the inner cavity wall is made of aluminum.
[0016] Further, the cavity further includes a filling port and an exhaust port; both the filling port and the exhaust port are opened on the outer cavity wall.
[0017] Further, the closing door assembly includes a rotating motor, a rotating motor base, and a closing door; the rotating motor is installed on the rotating motor base; the rotating motor base is located on one side of the cavity and is connected with the outer side wall of the cavity; the closing door is connected with the output end of the rotating motor and is located below the cavity.
[0018] Further, the roughness Ra of the arc-shaped waist groove is 0.2 - 0.8 μm.
[0019] Compared with the prior art, the present utility model has at least the following beneficial effects:
[0020] The sample plate rack clamping jaw device proposed by the present utility model realizes the clamping and loosening of the clamping jaw in a low-temperature liquid nitrogen environment by using the slide rail assembly and the arc-shaped waist groove provided on the eccentric plate; and rolling friction is adopted between each part of the slide rail assembly and between the contact surfaces of the slide rail assembly and the arc-shaped waist groove, which can enhance the smoothness of the clamping jaw during the clamping and loosening processes, ensure the accuracy of the operation, and at the same time reduce the friction between components, thereby reducing wear and extending the service life of the device. In addition, the sample plate rack can be kept in a low-temperature environment during transportation by using the provided heat preservation cavity module, and it is ensured that the sample is not damaged. Description of the Drawings
[0021] Figure 1This is a three-dimensional structure diagram of the sample plate rack jaw device in an embodiment of the present utility model;
[0022] Figure 2 This is a schematic structural diagram of the sample plate rack jaw device in an embodiment of the present utility model with the insulation cavity module removed;
[0023] Figure 3 This is a front view of the sample plate rack jaw device in an embodiment of the present utility model with the insulation cavity module removed;
[0024] Figure 4 This is a sectional view taken along line A-A of the sample plate rack jaw device in an embodiment of the present utility model;
[0025] Figure 5 This is a front view of the insulation cavity module of the sample plate rack jaw device in an embodiment of the present utility model;
[0026] Figure 6 This is a sectional view taken along line B-B of the insulation cavity module of the sample plate rack jaw device in an embodiment of the present utility model;
[0027] Figure 7 This is a three-dimensional structure diagram of the insulation cavity module of the sample plate rack jaw device in an embodiment of the present utility model from a certain perspective.
[0028] Reference numerals in the drawings: 1, driving motor; 2, driving motor base; 3, connecting shaft; 4, main body; 5, bearing; 6, eccentric plate; 7, moving shaft; 8, slide rail bracket; 9, slider; 10, slide rail; 11, jaw; 12, sample plate rack; 13, rotating motor; 14, rotating motor base; 15, closing door; 16, outer cavity wall; 17, inner cavity wall; 18, liquid nitrogen area; 19, filling port; 20, exhaust port. Detailed implementation manners
[0029] The sample plate rack jaw device of the present utility model will be described in more detail below with reference to the schematic diagrams, which show the preferred embodiments of the present utility model. It should be understood that those skilled in the art can modify the present utility model described herein while still achieving the advantageous effects of the present utility model. Therefore, the following description should be understood as a broad guidance for those skilled in the art and not as a limitation to the present utility model.
[0030] In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the accompanying drawings. The advantages and features of the present utility model will be clearer according to the following description. It should be noted that the drawings are all in a very simplified form and use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the embodiments of the present utility model.
[0031] As Figures 1 to 7As shown in the figure, an embodiment of the utility model provides a sample plate rack jaw device, which includes a jaw module, a heat preservation cavity module, a driving module and a main body part.
[0032] Specifically, as Figures 2 - 4 shown, the jaw module includes an eccentric plate 6 and a slide rail assembly. The eccentric plate 6 is provided with a divergent arc-shaped waist groove, and the arc-shaped waist groove is arranged in a divergent shape from the center of the eccentric plate 6, and the distance from the center of the arc-shaped waist groove to the rotation center of the eccentric plate 6 increases from small to large, which is used to limit the stroke of the slide rail assembly; the arc-shaped waist groove is subjected to hardening treatment, and the surface roughness Ra of the arc-shaped waist groove is set to 0.2 - 0.8 μm to reduce the friction between the arc-shaped waist groove and the slide rail assembly and make the slide rail assembly slide smoothly.
[0033] One end of the slide rail assembly is arranged in the arc-shaped waist groove, and at least two jaws 11 are arranged at the other end of the slide rail assembly. In this embodiment, the slide rail assembly includes a slider 9, a slide rail 10, a slide rail bracket 8 and a moving shaft 7; the slider 9 is installed on the slide rail 10; the slide rail 10 is installed on the slide rail bracket 8, the interface end of the slider 9 is connected to the jaw 11, and one end of the moving shaft 7 is installed on the slider 9 and the other end is located in the arc-shaped waist groove. The moving shaft 7 is made of quenched steel, which not only improves the hardness and strength of the moving shaft 7 but also maintains a certain toughness, and the surface roughness Ra is 0.2 - 0.8 μm. A rolling friction mechanism is adopted between the components of the slide rail assembly, so as to reduce the friction between the contact surfaces of the components and make the movement smoother.
[0034] The output end of the driving module of the jaw device is connected to the eccentric plate 6 to provide driving force for the eccentric plate 6. When the eccentric plate 6 rotates, the slide rail assembly can drive the jaws 11 to close or loosen. In this embodiment, the driving module includes a driving motor 1, a driving motor seat 2, a connecting shaft 3 and a bearing 5, as Figure 4 shown. The driving motor 1 is installed on the driving motor seat 2, and the driving motor seat 2 is used to fix the driving motor 1 and ensure the coaxiality of the motor shaft of the driving motor 1 and the connecting shaft 3 to ensure the accuracy and efficiency of power transmission. One end of the connecting shaft 3 passes through the driving motor seat 2 and is sleeved on the motor shaft of the driving motor 1, and the other end is located in the installation groove of the slide rail bracket 8. The driving motor 1 drives the connecting shaft 3 to rotate, thereby driving the eccentric plate 6 to rotate, and further enabling the jaws 11 to clamp or loosen the sample plate rack 12.
[0035] The bearing 5 is installed at both ends of the connecting shaft 3, which can reduce the friction and wear of the connecting shaft 3 during rotation, improve the rotational stability, and the bearing 5 can also absorb and reduce the vibration and impact caused by the operation of the driving motor 1, thereby protecting the driving motor 1 and the entire device.
[0036] In this embodiment, the jaw device further includes a main body member 4; one end of the main body member 4 is connected to the driving motor base 2, and the other end extends into the cavity and is connected to the slide rail bracket 8. The connecting shaft 3 is fixed in the main body member 4 through the bearing 5. The main body member 4 is used to protect the internal connecting shaft 3 and provide a stable supporting effect on the driving motor base 2.
[0037] In this embodiment, the thermal insulation cavity module includes a cavity and a closing door assembly. The cavity is used to control the temperature inside the cavity and maintain the stability of the internal environment. The closing door assembly is installed at the opening of the cavity and is used to close the cavity. The jaw module is located in the cavity and is used to grasp the sample plate rack 12.
[0038] Specifically, as Figures 5 - 7 shown, the cavity includes an outer cavity wall 16, an inner cavity wall 17, and a liquid nitrogen area 18 provided between the outer cavity wall 16 and the inner cavity wall 17. The thermal conductivity of the outer cavity wall 16 is lower than that of the inner cavity wall 17, and it can be prepared from fiberglass or other materials with low thermal conductivity to prevent the cold temperature in the liquid nitrogen area 18 from being transferred outward. The inner cavity wall 17 can be prepared from aluminum or other materials with high thermal conductivity to improve the cold conduction efficiency. The liquid nitrogen area 18 is used to store liquid nitrogen to keep the inner cavity wall 17 in a low-temperature state.
[0039] Preferably, a plurality of frustum-shaped or tooth-shaped convex structures are provided on the inner side surface of the inner cavity wall 17 to increase the heat conduction area.
[0040] In addition, the cavity further includes a filling port 19 and an exhaust port 20. Both the filling port 19 and the exhaust port 20 are opened on the outer cavity wall 16. Liquid nitrogen is added to the liquid nitrogen area 18 through the filling port 19, and the gas after the liquid nitrogen vaporizes and expands is discharged through the exhaust port 20.
[0041] In this embodiment, the closing door assembly includes a rotating motor 13, a rotating motor base 14, and a closing door 15. The rotating motor 13 is installed on the rotating motor base 14. The rotating motor base 14 is located on one side of the cavity and is connected to the outer side wall of the cavity. The closing door 15 is connected to the output end of the rotating motor base 14 and is located below the cavity. The opening and closing of the closing door 15 are controlled by the rotating motor 13. When the closing door 15 is closed, the closing door 15 is located below the inner cavity wall 17, forming a sealed space by the inner cavity wall 17.
[0042] When the driving motor 1 starts to work, the connecting shaft 3 starts to rotate driven by the motor shaft, thereby driving the eccentric plate 6 to start rotating, causing the moving shaft 7 to move in the arc-shaped waist groove of the eccentric plate 6, and the slider 9 to move linearly on the slide rail 10 driven by the moving shaft 7, so that the clamping jaws 11 can clamp or loosen the sample plate rack 12 driven by the slider 9.
[0043] During the transportation process, liquid nitrogen is added to the liquid nitrogen area 18 through the filling port 19 to make the inner cavity wall 17 reach a low-temperature state for pre-cooling in advance. At this time, the closing door 15 is closed. When the clamping jaws 11 start to work, the closing door 15 is opened driven by the rotating motor 13, and the clamping jaws 11 clamp the sample plate rack 12 (the sample plate rack 12 can be lifted by other external devices to facilitate the clamping of the clamping jaws 11). After the clamping jaws 11 clamp the sample plate rack 12, the closing door 15 starts to close, placing the sample plate rack 12 in a sealed low-temperature environment for easy storage.
[0044] In summary, the electric components of the clamping jaw device are located above the entire device, making the circuit shorter and reducing risks. At the same time, it also avoids damage to the electrical components in the low-temperature liquid nitrogen environment; the clamping jaws 11 are made of metal material, with small deformation in the low-temperature liquid nitrogen environment and can maintain good performance; the clamping or loosening of the sample plate rack 12 by the clamping jaws 11 in the low-temperature liquid nitrogen environment is realized by using the slide rail assembly and the arc-shaped waist groove provided on the eccentric plate 6; and rolling friction is adopted between each part of the slide rail assembly and between the contact surfaces of the slide rail assembly and the arc-shaped waist groove, which can enhance the smoothness of the clamping jaws during the clamping and loosening processes, ensure the accuracy of the operation, and at the same time reduce the friction between components, thereby reducing wear and extending the service life of the device. The core module can be quickly replaced to save maintenance time. In addition, the provided thermal insulation cavity module can keep the sample plate rack 12 in a low-temperature environment during transportation and ensure that the sample plate rack 12 is not damaged.
[0045] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these modifications and variations.
Claims
1. A sample plate holder clamping device, characterized in that: It includes a driving module, a gripper module and a heat preservation chamber module; The clamping jaw module includes an eccentric plate and a slide rail assembly; The eccentric plate is provided with a divergent arc-shaped waist groove, and the arc-shaped waist groove is arranged in a divergent shape outward from the center of the eccentric plate, one end of the slide rail assembly is arranged in the arc-shaped waist groove, and the other end of the slide rail assembly is provided with at least two clamping claws; The output end of the driving module is connected to the eccentric plate, and is used to provide driving force to the eccentric plate. When the eccentric plate rotates, the slide rail assembly can drive the clamping claw to close or release; The heat preservation chamber module comprises a chamber and a closing door assembly, wherein the closing door assembly is installed at the opening of the chamber to close the chamber; The gripper module is located in the cavity and is used for grabbing the sample plate rack.
2. The sample plate holder clamping device according to claim 1, characterized in that: The slide rail assembly includes a slider, a slide rail, a slide rail bracket and a moving shaft; the slider is installed on the slide rail, the slide rail is installed on the slide rail bracket, the slider is connected to the interface end of the clamp, one end of the moving shaft is installed on the slider, and the other end is located in the arc waist groove.
3. The sample plate holder clamping device according to claim 2, characterized in that: The driving module comprises a driving motor, a driving motor seat, a connecting shaft and a bearing; the driving motor is mounted on the driving motor seat; one end of the connecting shaft passes through the driving motor seat and is sleeved on the motor shaft of the driving motor, and the other end is located in the mounting groove of the slide rail bracket; The bearings are mounted on both ends of the connecting shaft.
4. The sample plate holder clamping device according to claim 3, characterized in that: It also includes a main body; one end of the main body is installed with the driving motor seat, and the other end extends into the cavity and is connected with the slide rail bracket; the connecting shaft is fixed in the main body through the bearing.
5. The sample plate holder clamping device according to claim 1, characterized in that: The cavity comprises an outer cavity wall, an inner cavity wall and a liquid nitrogen area arranged between the outer cavity wall and the inner cavity wall; a plurality of prism-shaped or tooth-shaped protrusion structures are arranged on the inner side surface of the inner cavity wall to increase the heat conduction area.
6. The sample plate holder clamping device according to claim 5, characterized in that: The thermal conductivity of the outer cavity wall is lower than the thermal conductivity of the inner cavity wall.
7. The sample plate holder clamping device according to claim 6, characterized in that: The outer cavity wall is made of glass fiber reinforced plastics, and the inner cavity wall is made of aluminum.
8. The sample plate holder clamping device according to claim 5, characterized in that: The cavity also includes a filling port and an exhaust port; the filling port and the exhaust port are both opened on the outer cavity wall.
9. The sample plate holder clamping device according to claim 1, characterized in that: The closing door assembly includes a rotating motor, a rotating motor seat and a closing door; the rotating motor is installed on the rotating motor seat; the rotating motor seat is located on one side of the cavity and connected to the outer side wall of the cavity; the closing door is connected to the output end of the rotating motor and is located below the cavity.
10. The sample plate holder clamping device according to claim 1, characterized in that: The roughness Ra of the arc-shaped waist groove is 0.2-0.8 μm .