A rotary valve body for a medical dehydrator

Abstract

This invention discloses a rotary valve body for a medical dehydrator, including a valve seat, a valve body with a cavity fixedly connected to the surface of the valve seat, an inlet and an outlet at both ends of the valve body, an inlet pipe and an outlet pipe communicating with the inlet and outlet respectively at both ends of the valve body, a cooling cavity between the inlet pipe and the outlet pipe, sliding grooves fixedly connected to both sides of the inner wall of the valve body, lifting blocks slidably connected in the sliding grooves on both sides, a cooling plate between the lifting blocks on both sides, a plurality of through grooves on the surface of the cooling plate, guide rings on the surface of the through grooves, and cooling ends at both ends of the guide rings; a push rod fixedly connected to the top of the cooling plate, a lifting groove on the top of the valve body, and the push rod passing through the lifting groove.

Description

Technical Field

[0001] This invention belongs to the field of dehydrator technology, and more specifically, relates to a rotary valve body for a medical dehydrator. Background Technology

[0002] For pathological diagnosis of diseases, the first step is to fix, dehydrate, clear, and impregnate the submitted tissue specimens to prepare paraffin blocks for sectioning. The tissue dehydrator automatically immerses human or animal tissues in various solvents according to a program to perform pre-treatment for pathological analysis, such as dehydration, clearing, and impregnation with paraffin. It is suitable for use in laboratories of medical colleges, hospital pathology departments, medical research units, animal and plant research units, and food testing departments.

[0003] Existing tissue dehydrators are classified into two types based on their operating method. One type arranges several reagent cylinders containing different treatment solutions, such as alcohol, xylene, and paraffin, in a circular or linear arrangement, and then uses a robotic arm to sequentially immerse tissue specimens into these cylinders for processing. The other type uses a pump to sequentially draw liquid from each reagent cylinder into a fixed reaction cylinder containing the tissue specimen. Both types of tissue dehydrators require switching valves on the bottom pipeline of the reaction cylinder. Among various switching valves, solenoid valves have a higher degree of automation and are therefore widely used. However, the operating temperature of a typical solenoid valve is no higher than 60°C, while the paraffin in a tissue dehydrator needs to be heated to melt during operation, typically maintaining a temperature of 65-70°C. Prolonged operation at this high temperature significantly shortens the lifespan of the solenoid valve. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a rotary valve body for a medical dehydrator, thereby resolving the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rotary valve body for a medical dehydrator, comprising a valve seat, a valve body with a cavity fixedly connected to the surface of the valve seat, an inlet and an outlet respectively at both ends of the valve body, an inlet pipe and an outlet pipe respectively connected to the inlet and outlet at both ends of the valve body, a cooling cavity between the inlet pipe and the outlet pipe, sliding grooves fixedly connected to both sides of the inner wall of the valve body, lifting blocks slidably connected within the sliding grooves on both sides, a cooling plate between the lifting blocks on both sides, a plurality of through grooves on the surface of the cooling plate, guide rings on the surface of the plurality of through grooves, and cooling ends at both ends of the guide rings; a push rod fixedly connected to the top of the cooling plate, a lifting groove on the top of the valve body, and the push rod passing through the lifting groove.

[0006] Preferably, the bottom of the lifting blocks on both sides is provided with a telescopic spring, and the two ends of the telescopic spring are fixedly connected to the bottom of the lifting block and the inner wall of the valve body, respectively.

[0007] Preferably, the push rod has a fixedly connected manual pressure head at its top.

[0008] Preferably, the valve body surface is provided with a cooling groove on one side of the lifting groove, a cooling pipe is provided below the cooling groove, and a threaded cap is provided on the surface of the cooling groove.

[0009] Preferably, the valve body has several heat dissipation and ventilation slots on both sides.

[0010] Preferably, the guide ring has several fixedly connected cooling fins inside.

[0011] Preferably, the valve body is provided with a rotatably connected limiting pressure plate at the top, and the limiting pressure plate is located on the side of the manual pressure head.

[0012] This invention provides a rotary valve body for a medical dehydrator, which has the following beneficial effects: the entire structure can effectively dissipate the heat inside the valve body, and by using a manually adjustable lifting plate, relying on the cooling plate on the surface and several through grooves with cooling ends, the surface temperature of the liquid flowing inside is rapidly reduced, thereby achieving heat dissipation, reducing the working temperature of the valve body, and extending the overall service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0015] Figure 3 This is a schematic diagram of the internal structure of the present invention.

[0016] In the diagram, 1. Valve seat; 2. Valve body; 3. Inlet; 4. Outlet; 5. Inlet pipe; 6. Outlet pipe; 7. Lifting block; 8. Cooling plate; 9. Guide ring; 10. Cooling end; 11. Cooling plate; 12. Telescopic spring; 13. Push rod; 14. Manual pressure head; 15. Cooling tank; 16. Cooling pipe; 17. Cover; 18. Heat dissipation and ventilation slot; 19. Limiting pressure plate. Implementation

[0017] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0018] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] Please see Figures 1 to 3 This invention provides a technical solution: a rotary valve body 2 for a medical dehydrator, comprising a valve seat 1, a valve body 2 with a cavity fixedly connected to the surface of the valve seat 1, an inlet 3 and an outlet 4 at both ends of the valve body 2, an inlet pipe 5 and an outlet pipe 6 communicating with the inlet 3 and outlet 4 respectively at both ends of the valve body 2, a cooling cavity between the inlet pipe 5 and the outlet pipe 6, sliding grooves fixedly connected to both sides of the inner wall of the valve body 2, lifting blocks 7 slidably connected within the sliding grooves, a cooling plate 8 between the two lifting blocks 7, a plurality of through grooves on the surface of the cooling plate 8, guide rings 9 on the surface of the through grooves, cooling ends 10 at both ends of the guide rings 9, and a plurality of fixedly connected cooling fins 11 inside the guide rings 9. A telescopic spring 12 is provided at the bottom of the two lifting blocks 7, and the two ends of the telescopic spring 12 are fixedly connected to the bottom of the lifting block 7 and the inner wall of the valve body 2 respectively. The cooling plate 8 has a fixedly connected push rod 13 at its top, and a fixedly connected manual pressure head 14 at the top of the push rod 13. The valve body 2 has a lifting groove at its top, through which the push rod 13 passes. A cooling groove 15 is located on one side of the lifting groove on the surface of the valve body 2, and a cooling pipe 16 is located below the cooling groove 15. A threaded cap 17 is located on the surface of the cooling groove 15. Several heat dissipation and ventilation grooves 18 are located on both sides of the valve body 2. A rotatably connected limiting pressure plate 19 is located on the top of the valve body 2, on one side of the manual pressure head 14.

[0021] The specific usage and function of this embodiment: The material enters the feed pipe 5 through the feed inlet 3. Since the paraffin needs to be heated to melt during the operation of the tissue dehydrator, the temperature is generally maintained at 65-70°C. The solenoid valve operates at this high temperature for a long time, which greatly shortens its service life. Therefore, the operator manually presses down the cooling plate 8, which is slidably connected to the inner walls on both sides. The material can pass through the guide ring 9, which has cooling ends 10 at both ends and cooling fins 11 inside, which greatly reduces the flow temperature of the material. The heat can also be dissipated in time through the heat dissipation ventilation slots 18 on both sides. In order to further cool the internal cavity, cold air can be introduced into the cavity through the cooling pipe 16 by external cooling equipment to achieve cooling. Overall, it can be ensured that the material passes through the valve body 2 while the inside of the valve body 2 is cooled, ensuring that the internal temperature of the tissue dehydrator is maintained during normal operation and will not be too high for a long time, thus extending the overall service life.

[0022] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A rotary valve body for a medical dehydrator, comprising a valve seat (1) and a valve body (2) with a cavity fixedly connected to the surface of the valve seat (1), characterized in that: The valve body (2) has an inlet (3) and an outlet (4) at both ends. The valve body (2) has an inlet pipe (5) and an outlet pipe (6) at both ends inside, which are connected to the inlet (3) and outlet (4), respectively. A cooling chamber is provided between the inlet pipe (5) and the outlet pipe (6). The inner wall of the valve body (2) is fitted with sliding grooves on both sides. Lifting blocks (7) are slidably connected in the sliding grooves on both sides. A cooling plate is provided between the lifting blocks (7) on both sides. (8) The surface of the cooling plate (8) is provided with several through grooves, and the surface of several through grooves is provided with guide rings (9). The two ends of the guide rings (9) are provided with cooling ends (10); the top of the cooling plate (8) is provided with a fixedly connected push rod (13), the top of the valve body (2) is provided with a lifting groove, and the push rod (13) passes through the lifting groove. The bottom of the lifting blocks (7) on both sides is provided with a telescopic spring (12), and the two ends of the telescopic spring (12) are fixedly connected to the bottom of the lifting block (7) and the inner wall of the valve body (2), respectively. The push rod (13) is provided with a fixedly connected manual pressure head (14) at the top. The valve body (2) has a cooling groove (15) on one side of the lifting groove, a cooling pipe (16) is provided below the cooling groove (15), and a threaded cover (17) is provided on the surface of the cooling groove (15). The valve body (2) has several heat dissipation and ventilation slots (18) on both sides; The guide ring (9) has several fixedly connected cooling fins (11) inside. The valve body (2) is provided with a rotatably connected limiting pressure plate (19) on the top, and the limiting pressure plate (19) is located on one side of the manual pressure head (14).

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