Tissue freezing table with automatic pushing function

Abstract

The tissue freezing table with the automatic pushing function comprises a shell, a freezing plate is arranged on the upper side face of the front end of the shell, a cooling assembly used for reducing the temperature of the freezing plate is arranged in the shell, and the tissue freezing table further comprises a quantitative pushing mechanism. The quantitative pushing mechanism comprises a storage bin, a pushing bin, a conveying port, a discharging plate, a spring and a discharging port, the storage bin is arranged at the right end of the shell, the conveying port is formed in the left end of the lower side wall of the storage bin, the left end of the storage bin is slidably connected with the pushing bin, and the bottom wall of the pushing bin is matched with the conveying port; a discharging plate is slidably connected to the left end between the upper inner wall and the lower inner wall of the pushing bin, and evenly-distributed springs are arranged between the discharging plate and the front inner wall and the rear inner wall of the pushing bin. And difficulty in slicing and even quality problems caused by supercooling of individual special tissue wax blocks after being placed for a long time are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tissue freezing, in particular to a tissue freezing table with automatic pushing function. BACKGROUND

[0002] The paraffin section is a kind of sample processing method commonly used in chemical, biological and other scientific experiments, which can make the sample to be studied into very thin section, to facilitate observation and analysis. Since paraffin is low in hardness and easy to break, precooling treatment is needed when preparing paraffin section to ensure the quality and effect of the section. Precooling is a common paraffin section processing method. Its role is to place the paraffin block in a low temperature environment before sectioning, so that it becomes more hardened.

[0003] Some traditional freezing tables, in order to save time and facilitate operation, often spread a batch of tissue paraffin samples on the surface of the freezing table, and precool the tissue paraffin samples.

[0004] This way has some problems. When precooling the paraffin section, individual special tissue paraffin blocks may be overcooled due to long placement time, leading to difficult sectioning or even quality problems. Therefore, we propose a tissue freezing table with automatic pushing function. UTILITY MODEL CONTENT

[0005] The utility model solves the technical problem of overcoming the defects of the prior art, and provides a tissue freezing table with automatic pushing function, which can quantitatively push the tissue paraffin blocks that need to be frozen, avoid overcooling of individual special tissue paraffin blocks due to long placement time, and effectively solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a tissue freezing table with automatic pushing function, comprising a shell, a freezing plate is arranged on the upper side of the front end of the shell, a cooling assembly for reducing the temperature of the freezing plate is arranged in the shell, and a quantitative pushing mechanism is further included.

[0007] The quantitative pushing mechanism comprises a storage bin, a pushing bin, a feeding port, a discharge plate, a spring and a discharge port. The storage bin is arranged at the right end of the shell, the left end of the lower side wall of the storage bin is provided with a feeding port, the left end of the upper and lower inner walls of the storage bin is slidably connected with the pushing bin, the bottom wall of the pushing bin is matched with the feeding port, the left end between the upper and lower inner walls of the pushing bin is slidably connected with the discharge plate, the springs are evenly arranged between the front and rear inner walls of the discharge plate and the pushing bin, and the left end of the front side of the pushing bin is provided with a discharge port. The quantitative pushing mechanism can quantitatively push the tissue paraffin blocks that need to be frozen, avoid overcooling of individual special tissue paraffin blocks due to long placement time, and effectively solve the problems in the background art.

[0008] Further, the right side of the shell is provided with a control switch group, the input end of the control switch group is electrically connected with an external power supply, and the control is stable.

[0009] Further, the storage bin and the shell are fixedly connected through a mounting frame, the upper side of the mounting frame is provided with an electric cylinder bracket, the right side of the electric cylinder bracket is provided with an electric cylinder, the telescopic end of the electric cylinder is fixedly connected with the lower end right side of the push bin, the input end of the electric cylinder is electrically connected with the output end of the control switch group, and the driving is stable.

[0010] Further, the quantitative pushing mechanism further comprises a push plate and a feeding port, the upper side wall right end of the storage bin is provided with the feeding port, the push plate is slidably connected between the upper and lower inner walls of the storage bin, and the right side of the push plate is rotatably connected with the left end of a threaded rod, so that the frozen tissue wax block can be pushed.

[0011] Further, the quantitative pushing mechanism further comprises a push groove, the front side of the shell is provided with a push table, the push table is installed in cooperation with the discharge plate, and the left end rear side of the push bin is provided with the push groove for avoiding the push table, so that the frozen tissue wax block can be pushed.

[0012] Further, the cooling assembly is an evaporator, the evaporator is arranged on the front side top wall of the shell, and the evaporator is installed in cooperation with the freezing plate, so that the frozen tissue wax block can be frozen.

[0013] Further, the compressor and the condenser are respectively installed on the inner wall of the rear side of the shell, the compressor and the condenser are connected in series through a conveying pipe, the condenser and the evaporator are connected in series through an input pipe, the middle part of the input pipe is connected in series with an expansion valve, the compressor and the evaporator are connected in series through a connecting pipe, and the input end of the compressor is electrically connected with the output end of the control switch group, so that the frozen tissue can be subjected to paraffin sectioning.

[0014] Compared with the prior art, the tissue freezing table with the automatic pushing function has the following advantages:

[0015] Under the cooperation of the storage bin, the push bin and the discharge plate, the frozen tissue wax block can be quantitatively pushed, and the overcooling of individual special tissue wax blocks due to long storage time is avoided, so that the sectioning is difficult and the quality is problematic. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a structural schematic view of the rear side of the utility model;

[0018] Figure 3 It is a structural schematic view of the rear side of the utility model;

[0019] Figure 4 It is the structure schematic view of the partial section of the front side of the utility model;

[0020] Figure 5 It is the structure schematic view of the utility model A place amplification.

[0021] In the figure: 1 shell, 2 quantitative push mechanism, 21 storage warehouse, 22 push warehouse, 23 push plate, 24 feeding port, 25 material conveying port, 26 discharge plate, 27 spring, 28 discharge port, 29 push groove, 3 refrigeration plate, 4 push table, 5 electric cylinder, 6 mounting frame, 7 electric cylinder frame, 8 stud, 9 compressor, 10 condenser, 11 conveying pipe, 12 connecting pipe, 13 input pipe, 14 expansion valve, 15 control switch group, 16 evaporator. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-5The embodiment provides a technical scheme: an organization freezing table with an automatic pushing function, which comprises a shell 1, a freezing plate 3 arranged on the upper side of the front end of the shell 1, a cooling assembly arranged in the shell 1 and used for reducing the temperature of the freezing plate 3, a control switch group 15 arranged on the right side of the shell 1, an input end of the control switch group 15 being electrically connected with an external power supply, the cooling assembly being an evaporator 16, the evaporator 16 being arranged on the front side top wall of the shell 1 and being installed in cooperation with the freezing plate 3, a compressor 9 and a condenser 10 being respectively arranged on the inner wall of the rear side of the shell 1, the compressor 9 and the condenser 10 being connected in series through a conveying pipe 11, the condenser 10 and the evaporator 16 being connected in series through an input pipe 13, the input pipe 13 being connected in series with an expansion valve 14 in the middle part of the input pipe 13, the compressor 9 and the evaporator 16 being connected in series through a connecting pipe 12, and an input end of the compressor 9 being electrically connected with an output end of the control switch group 15. Further comprising a quantitative pushing mechanism 2, the organization wax block is frozen, the operator controls the control switch group 15 to drive the compressor 9 to operate, the compressor 9 compresses the refrigerant into high-temperature and high-pressure gas, then the high-temperature and high-pressure gas is conveyed to the inside of the condenser 10 through the conveying pipe 11, the condenser 10 discharges heat through the air vent of the device, so that the refrigerant becomes high-pressure liquid, the high-pressure liquid becomes low-temperature and low-pressure liquid after being decompressed by the expansion valve 14 connected in the middle part of the input pipe 13, and then enters the evaporator 16, in the evaporator, the refrigerant absorbs the heat of the freezing plate 3, so that the temperature of the freezing plate 3 is reduced, and the refrigerant itself becomes low-temperature and low-pressure gas, and is sucked into the compressor 9 again (after throttling and decompression by the expansion valve 14, the refrigerant is in a low-pressure state in the evaporator 16, and the suction port of the compressor 9 is also connected with the low-pressure side, so that a pressure difference is formed from the evaporator 16 to the suction port of the compressor 9, under the action of the pressure difference, the low-temperature and low-pressure gaseous refrigerant in the evaporator 16 is “pushed” to the suction port of the compressor 9, and the compressor 9 maintains a relatively low suction pressure in the process of continuous operation, so that the refrigerant flows from the evaporator 16 to the compressor 9 through the connecting pipe 12), so as to form a refrigeration cycle, the organization wax block is in contact with the surface of the freezing plate 3, heat is transmitted to the freezing plate 3 in a heat conduction mode, so that the temperature of the organization wax block is rapidly reduced, and the freezing effect of the organization wax block is achieved, and the organization wax block is conveniently frozen.

[0024] Quantitative pushing mechanism 2: it includes storage bin 21, pushing bin 22, feeding port 25, discharge plate 26, spring 27 and discharge port 28, storage bin 21 is arranged at the right end of shell 1, feeding port 25 is arranged at the left end of the lower side wall of storage bin 21, pushing bin 22 is slidably connected to the left end between the upper and lower inner walls of storage bin 21, the bottom wall of pushing bin 22 is matched with feeding port 25, discharge plate 26 is slidably connected to the left end between the upper and lower inner walls of pushing bin 22, springs 27 are arranged between discharge plate 26 and the front and rear inner walls of pushing bin 22, discharge port 28 is arranged at the left end of the front side of pushing bin 22, storage bin 21 is fixedly connected with shell 1 through mounting bracket 6, electric cylinder bracket 7 is arranged on the upper side of mounting bracket 6, electric cylinder 5 is arranged on the right side of electric cylinder bracket 7, the telescopic end of electric cylinder 5 is fixedly connected with the lower end right side of pushing bin 22, the input end of electric cylinder 5 is electrically connected with the output end of control switch group 15, quantitative pushing mechanism 2 further includes pushing plate 23 and feeding port 24, feeding port 24 is arranged at the right end of the upper side wall of storage bin 21, pushing plate 23 is slidably connected between the upper and lower inner walls of storage bin 21, threaded stud 8 is threadedly connected to the right end middle part of storage bin 21, the left end of threaded stud 8 is rotatably connected with the right side of pushing plate 23, quantitative pushing mechanism 2 further includes pushing groove 29, pushing table 4 is arranged on the front side of shell 1, pushing table 4 is matched with discharge plate 26, pushing groove 29 is arranged at the left end back side of pushing bin 22 for avoiding pushing table 4, the operator places the tissue wax block to be frozen in the inside of storage bin 21 through feeding port 24, then the operator rotates threaded stud 8, at this time, pushing plate 23 moves left under the limitation of the upper and lower inner walls of storage bin 21, threaded stud 8 drives pushing plate 23 to move left, then pushing plate 23 pushes the tissue wax block to be frozen to move left, when the tissue wax block to be frozen moves to feeding port 25, part of the tissue wax block falls into the inside of pushing bin 22 under the action of gravity, at this time, the operator drives electric cylinder 5 to operate through control switch group 15, the telescopic end of electric cylinder 5 pushes pushing bin 22 to move left, at this time, the inner wall of pushing bin 22 gradually stops at the lower end of feeding port 25, at this time, the tissue wax block to be frozen in the inside of storage bin 21 temporarily stays in the inside of storage bin 21, waiting for the next batch of freezing, then, in the process of pushing bin 22 moving left, pushing table 4 gradually approaches and contacts pushing table 4, after a period of time, pushing table 4 passes through pushing groove 29, then when the edge of the left end of discharge plate 26 contacts the right end inclined surface of pushing table 4 and continuously moves left, discharge plate 26 will gradually move forward along the inclined surface of pushing table 4, springs 27 are pressed, at this time, discharge plate 26 pushes the tissue wax block to be frozen in the inside of pushing bin 22 to move forward, falls on the surface of freezing plate 3 through feeding port 24, so as to quantitatively push the tissue wax block to be frozen.

[0025] The working principle of the tissue freezing table with the automatic pushing function is as follows: first, the operator places the tissue wax block to be frozen in the storage bin 21 through the feeding opening 24, then the operator rotates the stud 8, at this time, the push plate 23 moves left under the restriction of the upper and lower inner walls of the storage bin 21, the stud 8 drives the push plate 23 to move left, and then the push plate 23 pushes the tissue wax block to be frozen to move left, when the tissue wax block to be frozen moves to the feeding opening 25, part of the tissue wax block falls into the pushing bin 22 under the action of gravity, at this time, the operator controls the electric cylinder 5 to operate by controlling the control switch group 15, the telescopic end of the electric cylinder 5 pushes the pushing bin 22 to move left, at this time, the inner wall of the pushing bin 22 gradually stops at the lower end of the feeding opening 25, at this time, the tissue wax block to be frozen in the storage bin 21 temporarily stays in the storage bin 21 and waits for the next batch of freezing, then, in the process of moving left of the pushing bin 22, the pushing bin 22 gradually approaches and contacts the pushing table 4, after a period of time, the pushing table 4 passes through the pushing groove 29, then when the edge of the left end of the discharge plate 26 contacts the inclined surface of the right end of the pushing table 4 and continuously moves left, the discharge plate 26 will gradually move forward along the inclined surface of the pushing table 4, the spring 27 is pressed, at this time, the discharge plate 26 pushes the tissue wax block to be frozen in the pushing bin 22 to move forward and falls on the surface of the freezing plate 3 through the feeding opening 24, at this time, the tissue wax block is ready to be frozen, the operator controls the compressor 9, the condenser 10, the expansion valve 14 and the evaporator 16 to operate by controlling the control switch group 15, the compressor 9 compresses the refrigerant into high-temperature and high-pressure gas, then the high-temperature and high-pressure gas is transported to the inside of the condenser 10 through the conveying pipe 11, the condenser 10 discharges heat through the air vent of the device, so that the refrigerant becomes a high-pressure liquid, the high-pressure liquid becomes a low-temperature and low-pressure liquid after being decompressed by the expansion valve 14 connected in the middle of the input pipe 13, and then enters the evaporator 16, in the evaporator, the refrigerant absorbs the heat of the freezing plate 3, so that the temperature of the freezing plate 3 is reduced, and the refrigerant itself becomes a low-temperature and low-pressure gas, and is sucked into the compressor 9 again (after being throttled and decompressed by the expansion valve 14, the refrigerant in the evaporator 16 is in a low-pressure state, and the suction port of the compressor 9 is also connected to the low-pressure side, so that a pressure difference is formed from the evaporator 16 to the suction port of the compressor 9, under the action of the pressure difference, the low-temperature and low-pressure gaseous refrigerant in the evaporator 16 is "pushed" to the suction port of the compressor 9, and the compressor 9 maintains a relatively low suction pressure in the process of continuous operation, so that the refrigerant flows from the evaporator 16 to the compressor 9 through the connecting pipe 12), so as to form a refrigeration cycle, the tissue wax block contacts the surface of the freezing plate 3, heat is transferred to the freezing plate 3 in a heat conduction manner, the temperature of the tissue wax block is rapidly reduced, and the freezing effect of the tissue wax block is achieved.

[0026] It is worth noting that the electric cylinder 5 disclosed in the above embodiment can be a YRJ045 model, the compressor 9 can be a model commonly used in the organization of a freezing platform in a conventional operation, and the control switch group 15 is provided with a control button corresponding to the electric cylinder 5 and the compressor 9 and used for controlling the switch thereof.

[0027] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A tissue cryostat with automatic pushing function, comprising a shell (1), wherein a cryostat plate (3) is provided on the upper front side of the shell (1), and a cooling component for reducing the temperature of the cryostat plate (3) is provided inside the shell (1), characterized in that: It also includes quantitative delivery mechanisms (2); Quantitative pushing mechanism (2): It includes a storage bin (21), a pushing bin (22), a feeding port (25), a discharge plate (26), a spring (27), and a discharge port (28). The storage bin (21) is located at the right end of the outer shell (1). The feeding port (25) is opened at the left end of the lower side wall of the storage bin (21). The pushing bin (22) is slidably connected to the left end of the storage bin (21). The bottom wall of the pushing bin (22) is matched with the feeding port (25). The discharge plate (26) is slidably connected between the upper and lower inner walls of the pushing bin (22). Springs (27) are evenly distributed between the discharge plate (26) and the front and rear inner walls of the pushing bin (22). The discharge port (28) is opened at the left end of the front side of the pushing bin (22).

2. The tissue cryostat with automatic pushing function according to claim 1, characterized in that: The right side of the housing (1) is provided with a control switch group (15), and the input end of the control switch group (15) is electrically connected to an external power source.

3. A tissue cryostat with automatic pushing function according to claim 2, characterized in that: The storage compartment (21) is fixedly connected to the outer shell (1) by a mounting bracket (6). The upper side of the mounting bracket (6) is provided with an electric cylinder bracket (7). An electric cylinder (5) is installed on the right side of the electric cylinder bracket (7). The telescopic end of the electric cylinder (5) is fixedly connected to the lower right side of the push compartment (22). The input end of the electric cylinder (5) is electrically connected to the output end of the control switch group (15).

4. A tissue cryostat with automatic pushing function according to claim 1, characterized in that: The quantitative pushing mechanism (2) also includes a push plate (23) and a feeding port (24). The upper side wall of the storage bin (21) is provided with a feeding port (24). The upper and lower inner walls of the storage bin (21) are slidably connected to the push plate (23). The middle right end of the storage bin (21) is threaded with a stud (8). The left end of the stud (8) is rotatably connected to the right side of the push plate (23).

5. A tissue cryostat with automatic pushing function according to claim 1, characterized in that: The quantitative pushing mechanism (2) also includes a pushing groove (29). The front side of the outer shell (1) is provided with a pushing platform (4). The pushing platform (4) is installed in conjunction with the discharge plate (26). The left rear side of the pushing chamber (22) is provided with a pushing groove (29) for avoiding the pushing platform (4).

6. A tissue cryostat with automatic pushing function according to claim 2, characterized in that: The cooling component is an evaporator (16), which is located on the front top wall of the outer shell (1). The evaporator (16) is installed in conjunction with the freezing plate (3).

7. A tissue cryostat with automatic pushing function according to claim 6, characterized in that: A compressor (9) and a condenser (10) are respectively installed on the inner wall of the rear side of the outer casing (1). The compressor (9) and the condenser (10) are connected in series through a delivery pipe (11). The condenser (10) and the evaporator (16) are connected in series through an input pipe (13). An expansion valve (14) is connected in series in the middle of the input pipe (13). The compressor (9) and the evaporator (16) are connected in series through a connecting pipe (12). The input end of the compressor (9) is electrically connected to the output end of the control switch group (15).

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