Experimental lumbricus low-temperature dissecting table

Abstract

The utility model belongs to the technical field of experimental dissecting tables, and discloses an experimental lumbricus low-temperature dissecting table which comprises a table top, a water tank, a lighting device, a display screen, a temperature sensor, a controller, a control switch and a supporting frame. The table top comprises a fixing disc located in the center area of the table top and a semiconductor chilling plate area located on the periphery of the fixing disc, the fixing disc and the semiconductor chilling plate area are integrally formed flat plates and are made of heat conduction materials, and a plurality of fixing holes are formed in the fixing disc; a semiconductor chilling plate is arranged below the semiconductor chilling plate area, and the cold face of the semiconductor chilling plate is attached to the lower surface of the semiconductor chilling plate area or integrally formed with a plate body of the semiconductor chilling plate area. The water tank is arranged below the table top and detachably installed on the supporting frame. The temperature sensor is arranged in the center of the fixing disc, and the display screen, the temperature sensor and the semiconductor chilling plate are electrically connected with the controller. The lumbricus dissecting device is simple, convenient and practical, and meets the requirement of experimental dissecting of lumbricus.

Description

Technical Field

[0001] The utility model belongs to the technical field of experimental dissection tables, and more specifically, the utility model relates to a low-temperature dissection table for Pheretima guillelmi in experiments. Background Art

[0002] Pheretima guillelmi is a genuine regional animal medicinal material among the "Ten Flavors in Guangxi". Its dissection is a basic operation for basic research. In some scientific research experiments such as tissue sample collection for RNA and protein extraction, intestinal content separation, and pathogen isolation, it is necessary to dissect its living tissues. However, there are problems such as difficulty in fixing the living Pheretima guillelmi and long dissection time. Although the prior art discloses a multi-functional experimental animal dissection table (publication number: CN201260706Y), which can fix small animals on the tabletop by the pinning method, during the operation at normal temperature, it is difficult for its dissection table to maintain the biological activity of tissue samples. If ice cubes are placed on the dissection table and the dissection of Pheretima guillelmi is carried out on the ice, not only is it easy to melt due to heat, and the melted water body affects the tissue samples, but also the low-temperature maintenance time is short. The steps of repeatedly replacing or adding ice to maintain a continuous low-temperature state are cumbersome and waste a lot of time and energy, and rapid fixation and dissection cannot be carried out. Therefore, in the actual operation process in the laboratory, to ensure convenient operation and maximize the maintenance of the biological activity of tissue samples, a low-temperature dissection table for experiments is urgently needed. Content of the Utility Model

[0003] An object of the utility model is to solve at least the above defects and provide at least the advantages described later.

[0004] The utility model provides a low-temperature dissection table for Pheretima guillelmi in experiments. By arranging a fixing plate in the central area of the tabletop, a plurality of fixing holes are opened on the fixing plate, and the outer periphery of the fixing plate is set as a thermoelectric cooler area. The fixing plate and the thermoelectric cooler area are integrally formed and made of a heat-conducting material, so that the thermoelectric cooler in the thermoelectric cooler area can cool the tabletop, ensuring the convenience of fixing and dissecting Pheretima guillelmi on the fixing plate of the tabletop, and also facilitating the maintenance of the biological activity of Pheretima guillelmi tissue samples at low temperature. The utility model is simple and practical and meets the needs of experimental dissection of Pheretima guillelmi.

[0005] The utility model provides a low-temperature dissection table for Pheretima guillelmi in experiments, which includes a tabletop, a water tank, a lighting device, a display screen, a temperature sensor, a controller, a control switch, and a support frame;

[0006] The tabletop includes a fixed disk located in the central area of the tabletop and a thermoelectric cooler area located on the outer periphery of the fixed disk. The fixed disk and the thermoelectric cooler area are integrally formed flat plates and are made of a heat-conducting material. A plurality of fixing holes are provided on the fixed disk; a thermoelectric cooler is provided below the thermoelectric cooler area, and the cold surface of the thermoelectric cooler is attached to the lower surface of the thermoelectric cooler area or is integrally formed with the plate body of the thermoelectric cooler area;

[0007] The lighting device and the display screen are installed above or on the side of the tabletop;

[0008] The support frame is installed at the lower end of the tabletop, and the water sink is provided below the tabletop and is detachably installed on the support frame;

[0009] The lighting device, the display screen, the controller and the control switch are electrically connected;

[0010] Among them, the temperature sensor is arranged at the center of the fixed disk for monitoring the temperature of the fixed disk; the display screen, the temperature sensor, the thermoelectric cooler and the controller are electrically connected.

[0011] Preferably, the plurality of fixing holes are arranged neatly in the longitudinal and transverse directions.

[0012] Preferably, a surrounding plate is provided below the thermoelectric cooler area. The surrounding plate is located between the thermoelectric cooler and the fixed disk to space the hot surface of the thermoelectric cooler from the fixed disk; wherein, the surrounding plate is made of a non-heat-conducting material.

[0013] Preferably, the tabletop further includes an atomizing pipe arrangement area, which is located on the outer periphery of the thermoelectric cooler area. The atomizing pipe arrangement area is an inclined surface with an outer high and inner low shape. The upper surface of the atomizing pipe arrangement area is hermetically connected to the upper surface of the thermoelectric cooler area, and the shape of the upper surface of the formed tabletop is a shape with an outer periphery higher than the central flat plate.

[0014] Preferably, an atomizing pipe is provided below the atomizing pipe arrangement area, and a plurality of atomizing and humidifying holes communicating with the upper surface of the atomizing pipe arrangement area are provided on the atomizing pipe.

[0015] Preferably, the tabletop further includes a sleep cavity. The sleep cavity includes a square box or cylinder with an upper opening and a cover corresponding to the upper opening. The sleep cavity is integrally formed with one of the areas of the thermoelectric cooler area, and the sleep cavity is also made of a heat-conducting material. The area where the sleep cavity is provided corresponds to a thermoelectric cooler and a temperature sensor for monitoring the temperature, and the remaining thermoelectric cooler areas correspond to another thermoelectric cooler for refrigeration.

[0016] Preferably, it further includes a cooling fan and a cooling duct. The cooling duct surrounds the outer periphery of the hot surface of the thermoelectric cooler. One end of the cooling duct is provided with an opening communicating with the outside, and the other end is communicated with the cooling fan.

[0017] The utility model has at least the following beneficial effects:

[0018] First of all, in the utility model, a fixing plate is arranged in the central area of the tabletop. A plurality of fixing holes are formed in the fixing plate. The outer periphery of the fixing plate is set as the thermoelectric cooler area. The fixing plate and the thermoelectric cooler area are integrally formed and made of a heat-conducting material, so that the thermoelectric cooler in the thermoelectric cooler area can cool the tabletop, ensuring the convenience of fixing and dissecting the Pheretima aspergillum on the fixing plate of the tabletop, and also facilitating the low-temperature maintenance of the biological activity of the Pheretima aspergillum tissue sample. The utility model is simple and practical, meeting the needs of the experiment of dissecting the Pheretima aspergillum.

[0019] Secondly, in the utility model, a surrounding plate is arranged between the thermoelectric cooler and the fixing plate, which can not only block the heat conduction of the hot surface of the thermoelectric cooler to the fixing plate, but also avoid the influence of the fixing plate on the thermoelectric cooler during use and cleaning.

[0020] Furthermore, the upper surface of the tabletop of the utility model is shaped as a flat plate with the outer periphery higher than the center, which is beneficial for the tools for operation, the Pheretima aspergillum or the substances for cleaning to fall out of the tabletop, facilitating operation and cleaning and improving the use effect. In addition, the setting of the dormancy cavity can not only save operation time, but also prevent the Pheretima aspergillum from crawling around before entering dormancy, effectively improving the use effect.

[0021] Other advantages, objectives and features of the utility model will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of an implementation form of the low-temperature dissection table for Pheretima aspergillum used in the experiment of the utility model;

[0023] Figure 2 It is a schematic structural diagram of another implementation form of the low-temperature dissection table for Pheretima aspergillum used in the experiment of the utility model;

[0024] Among them, lighting device 1; display screen 2; dormancy cavity 3; thermoelectric cooler area 4; fixing plate 5; fixing holes 6; tabletop 7; slide rail 8; support frame 9; control switch 10; atomization tube arrangement area 11; atomization humidification holes 12. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following further detailed description of the utility model is made in conjunction with embodiments, so that those skilled in the art can implement it according to the text of the specification.

[0026] It should be noted that, unless otherwise specified, the experimental methods described in the following implementation schemes are all conventional methods, and the reagents and materials, unless otherwise specified, can all be obtained from commercial channels; in the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The orientation or positional relationship indicated by the terms "horizontal", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0027] Figure 1 The implementation form of the low-temperature dissection table for Pheretima guangdoni for experiments is shown, which includes a tabletop 7, a water tank, a lighting device 1, a display screen 2, a temperature sensor, a controller, a control switch 10 and a support frame 9; the tabletop 7 includes a fixed disk 5 in the central area of the tabletop 7 and a thermoelectric cooler area 4 on the outer periphery of the fixed disk 5. The fixed disk 5 and the thermoelectric cooler area 4 are integrally formed flat plates and are made of heat-conducting materials. A plurality of fixing holes 6 are provided on the fixed disk 5; a thermoelectric cooler is arranged below the thermoelectric cooler area 4, and the cold surface of the thermoelectric cooler is attached to the lower surface of the thermoelectric cooler area 4 or is integrally formed with the plate body of the thermoelectric cooler area 4; the lighting device 1 and the display screen 2 are mounted above or on the side of the tabletop 7; the support frame 9 is installed at the lower end of the tabletop 7, and the water tank is arranged below the tabletop 7 and is detachably installed on the support frame 9; the lighting device 1, the display screen 2, the controller and the control switch 10 are electrically connected;

[0028] Among them, the temperature sensor is arranged in the center of the fixed disk 5 for monitoring the temperature of the fixed disk 5; the display screen 2, the temperature sensor, and the thermoelectric cooler are electrically connected to the controller.

[0029] In the above technical solution, the low-temperature dissection table for Pheretima guangdoni for experiments includes a tabletop 7, a water tank, a lighting device 1, a display screen 2, a temperature sensor, a controller, a control switch 10 and a support frame 9;

[0030] The tabletop 7 includes a fixed disk 5 located in the central area of the tabletop 7 and a thermoelectric cooler area 4 located on the outer periphery of the fixed disk 5. The fixed disk 5 and the thermoelectric cooler area 4 are integrally formed flat plates and are made of heat-conducting materials. The heat-conducting materials for the fixed disk 5 and the thermoelectric cooler area 4 can be selected from aluminum plates, copper plates, 304 stainless steel plates, 302 stainless steel plates, etc. A plurality of fixing holes 6 are formed in the fixed disk 5 for inserting fixing needles into the fixing holes 6 by the needle insertion method to fix the Pheretima guillelmi on the fixed disk 5. A thermoelectric cooler is provided below the thermoelectric cooler area 4, and the cold surface of the thermoelectric cooler is attached to the lower surface of the thermoelectric cooler area 4 or integrally formed with the plate body of the thermoelectric cooler area 4.

[0031] The lighting device 1 and the display screen 2 are installed above or on the side of the tabletop 7.

[0032] The support frame 9 is installed at the lower end of the tabletop 7 to horizontally support the tabletop 7. The support frame 9 can be a support foot, a support plate or a support box. The water tank is provided below the tabletop 7 and is detachably installed on the support frame 9. For example, sliding rails 8 are provided on both sides of the support frame 9, and sliding blocks matching the sliding rails 8 are provided on both sides of the water tank. The water tank can be taken out along the sliding rails 8 as needed for cleaning or pushed into the lower part of the tabletop 7 to receive the sewage flowing down from the tabletop 7, which is convenient for use.

[0033] The lighting device 1, the display screen 2, the controller and the control switch 10 are electrically connected to control the power supply on and off and adjustment of the lighting device 1, the display screen 2 and the controller. The control switch 10 is electrically connected to an external power supply, and the control switch 10 can be arranged on the support frame 9 for easy operation.

[0034] Among them, the temperature sensor is arranged at the center of the fixed disk 5 for monitoring the temperature of the fixed disk 5. The display screen 2, the temperature sensor and the thermoelectric cooler are electrically connected to the controller. The display screen 2 can display the temperature monitored by the temperature sensor for the fixed disk 5, so as to facilitate adjusting the cooling capacity of the thermoelectric cooler and keep the temperature of the fixed disk 5 in the range of 0-4°C, which is convenient for experimental operation. The fixed disk 5 can be set as a circular plate or a square plate. When the fixed disk 5 is set as a square plate, the length is about 20 cm and the thickness is about 2-5 cm.

[0035] When using the low-temperature dissection table for Pheretima aspergillum in this experiment, turn on the lighting device 1, the display screen 2, and the controller by controlling the switch 10, and adjust the semiconductor refrigeration chip to be in the refrigeration working state. When the temperature of the fixed plate 5 displayed on the display screen 2 remains at 0-4°C, the experiment can be started. The specific steps are as follows: After washing the Pheretima aspergillum (earthworm) used in the experiment with physiological saline or PBS, place it on the fixed plate 5. When the Pheretima aspergillum is in a dormant and anesthetized state due to low temperature, fix it to the fixing hole 6 with a fixing needle (that is, fix the Pheretima aspergillum on the fixed plate 5 by the pinning method), and then the dissection work can be carried out.

[0036] The utility model is simple and practical, facilitating the dissection table to maintain a low-temperature state, effectively maintaining the biological activity of the experiment, and meeting the needs of dissecting Pheretima aspergillum in the experiment.

[0037] On the basis of the above implementation manner, a plurality of fixing holes 6 are arranged neatly in the vertical and horizontal directions, which is conducive to the expansion and fixation of Pheretima aspergillum and facilitates the dissection operation.

[0038] On the basis of the above implementation manner, a baffle is provided below the semiconductor refrigeration chip area 4. The baffle is located between the semiconductor refrigeration chip and the fixed plate 5 to space the hot surface of the semiconductor refrigeration chip from the fixed plate 5; wherein, the baffle is made of a non-thermal conductive material. For example, the baffle can be selected from plastic plates, rubber plates, etc. This design can not only block the heat conduction of the hot surface of the semiconductor refrigeration chip to the fixed plate 5, but also avoid the influence of the fixed plate 5 on the semiconductor refrigeration chip during use and cleaning.

[0039] On the basis of the above implementation manner, the tabletop 7 further includes an atomization pipe arrangement area 11, which is located on the outer periphery of the semiconductor refrigeration chip area 4. The atomization pipe arrangement area 11 is an inclined surface with a higher outer part and a lower inner part. The upper surface of the atomization pipe arrangement area 11 is hermetically connected to the upper surface of the semiconductor refrigeration chip area 4, and the shape of the upper surface of the formed tabletop 7 is a shape with a higher outer periphery than the central flat plate. The central flat plate is the flat plate formed by integrally molding the fixed plate 5 and the semiconductor refrigeration chip area 4. This design shape is conducive to the tools for operation, Pheretima aspergillum, or the substances for cleaning to fall out of the tabletop 7, facilitating operation and cleaning, and improving the use effect.

[0040] On the basis of the above implementation manner, an atomization pipeline communicating with the atomizer is provided below the atomization pipe arrangement area 11, and a plurality of atomization and humidification holes 12 communicating with the upper surface of the atomization pipe arrangement area 11 are provided on the atomization pipeline. This design can determine whether to turn on the atomizer according to the experimental needs. When the experimental sample is used for morphological observation, the atomizer can be turned on to make the mist emit to the tabletop 7 through the atomization and humidification holes 12 to moisturize the experimental sample; when used for protein or RNA extraction, the atomizer can be not turned on to prevent the tissue sample from being contaminated.

[0041] On the basis of the above implementation manner, such asFigure 2 As shown, the tabletop 7 further includes a dormancy chamber 3, which includes a square box or cylinder with an upper opening and a cover corresponding to the upper opening. The dormancy chamber 3 is integrally formed with one of the regions of the semiconductor refrigeration sheet region 4, and the dormancy chamber 3 is also made of a heat-conducting material. The region where the dormancy chamber 3 is provided corresponds to a semiconductor refrigeration sheet and a temperature sensor for monitoring the temperature, and the remaining semiconductor refrigeration sheet regions 4 correspond to another semiconductor refrigeration sheet for refrigeration. This design facilitates the dormancy chamber 3 to first control the temperature at 0-4°C. Place the Pheretima guillelmi in the dormancy chamber 3 and cover the cover. The Pheretima guillelmi gradually enters a dormant state in the dormancy chamber 3. At the same time, the temperature of the fixed plate 5 also gradually reaches 0-4°C, meeting the conditions for experimental operation. That is, the dormant Pheretima guillelmi can be taken out of the dormancy chamber 3 and placed on the fixed plate 5 for operation, which can not only save time but also prevent the Pheretima guillelmi from crawling around before entering dormancy, effectively improving the use effect. The display screen 2 of this design can display information such as the temperature of the fixed plate 5, the temperature of the dormancy chamber 3, and the humidity of the fixed plate 5. The control switch 10 can set the main power switch, the on / off switch of the atomizer, the adjustment switch of the semiconductor refrigeration sheet in the dormancy chamber 3, the adjustment switch of the semiconductor refrigeration sheet in the remaining semiconductor refrigeration sheet regions 4, the switch of the lighting device 1, etc.

[0042] On the basis of the above implementation, it further includes a cooling fan and a cooling pipeline. The cooling pipeline surrounds the outer periphery of the hot surface of the semiconductor refrigeration sheet. One end of the cooling pipeline is provided with an opening communicating with the outside, and the other end is communicated with the cooling fan. By starting the cooling fan, ventilation cooling is performed on the hot surface of the semiconductor refrigeration sheet to improve the refrigeration effect of the semiconductor refrigeration sheet.

[0043] Although the embodiments of the present utility model have been disclosed as above, they are not limited to only the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present utility model. For those familiar with the field, additional modifications can be easily achieved.

Claims

1. The low-temperature dissection table for Pheretima aspergillum used in experiments is characterized in that, It includes a tabletop, a water sink, a lighting device, a display screen, a temperature sensor, a controller, a control switch, and a support frame; The tabletop includes a fixed plate located in the central area of the tabletop and a thermoelectric cooler area located on the outer periphery of the fixed plate. The fixed plate and the thermoelectric cooler area are integrally formed flat plates and are made of heat-conducting materials. A plurality of fixing holes are provided on the fixed plate; a thermoelectric cooler is arranged below the thermoelectric cooler area, and the cold surface of the thermoelectric cooler is attached to the lower surface of the thermoelectric cooler area or is integrally formed with the plate body of the thermoelectric cooler area; The lighting device and the display screen are installed above or on the side of the tabletop; The support frame is installed at the lower end of the tabletop, and the water sink is arranged below the tabletop and is detachably installed on the support frame; The lighting device, the display screen, the controller, and the control switch are electrically connected; Among them, the temperature sensor is arranged in the center of the fixed plate for monitoring the temperature of the fixed plate; the display screen, the temperature sensor, and the thermoelectric cooler are electrically connected to the controller.

2. The low-temperature dissection table for Pheretima aspergillum for experimental use according to claim 1, wherein The plurality of fixing holes are arranged neatly in the longitudinal and transverse directions.

3. The low-temperature dissection table for Pheretima aspergillum for experiments according to claim 1, wherein, A surrounding plate is arranged below the thermoelectric cooler area. The surrounding plate is located between the thermoelectric cooler and the fixed plate to space the hot surface of the thermoelectric cooler from the fixed plate; among them, the surrounding plate is made of non-heat-conducting materials.

4. The experimental Lu Lu low-temperature dissection table according to any one of claims 1 to 3, characterized in that: The tabletop further includes an atomizing pipe arrangement area, which is located on the outer periphery of the thermoelectric cooler area. The atomizing pipe arrangement area is an inclined surface with the outer side higher than the inner side. The upper surface of the atomizing pipe arrangement area is hermetically connected to the upper surface of the thermoelectric cooler area, and the shape of the upper surface of the formed tabletop is a shape with the outer periphery higher than the central flat plate.

5. The low-temperature dissection table for Pheretima guangdii for experimental use according to claim 4, wherein, An atomizing pipeline communicating with an atomizer is arranged below the atomizing pipe arrangement area, and a plurality of atomizing and humidifying holes communicating with the upper surface of the atomizing pipe arrangement area are provided on the atomizing pipeline.

6. The low-temperature dissection table for Pheretima guillelmi for experimental use according to any one of claims 1-3 or 5, wherein The tabletop further includes a sleep cavity. The sleep cavity includes a square box or a cylinder with an upper opening and a cover corresponding to the upper opening. The sleep cavity is integrally formed with one of the areas of the thermoelectric cooler area, and the sleep cavity is also made of heat-conducting materials. The area where the sleep cavity is arranged corresponds to a thermoelectric cooler and a temperature sensor for monitoring temperature, and the remaining thermoelectric cooler areas correspond to another thermoelectric cooler for refrigeration.

7. The low-temperature dissection table for Pheretima aspergillum for experimental use according to claim 6, wherein, It further includes a cooling fan and a cooling pipeline. The cooling pipeline surrounds the outer periphery of the hot surface of the thermoelectric cooler. One end of the cooling pipeline is provided with an opening communicating with the outside, and the other end is communicated with the cooling fan.

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