Top-free air curtain type dissecting table

Abstract

The invention provides a top-free air curtain type dissecting table which is characterized in that a table base is provided with a first side end and a second side end which are parallel in the length direction and a third side end and a fourth side end which are parallel in the short direction, the first side end, the second side end and the third side end are respectively provided with a first air suction groove, a second air suction groove and a third air suction groove, and an air extractor is communicated with the first air suction groove, the second air suction groove and the third air suction groove; the frame comprises a first vertical plate, a rear baffle plate and a second vertical plate which are continuously arranged, the first vertical plate, the rear baffle plate and the second vertical plate are respectively connected with the top edges of the first side end, the fourth side end and the second side end, and a containing space is defined by the frame; the first vertical plate is provided with at least one first penetrating part, the top end of the first vertical plate is provided with a first air blowing piece, and the first air blowing piece is matched with the first air suction groove to form an air curtain, so that pollution gas in the containing space is extracted and prevented from leaking.

Description

Technical Field

[0001] The present invention relates to a topless air curtain type dissecting table, in particular to a topless air curtain type dissecting table which can facilitate the placement of instruments into the frame and effectively prevent the polluted gas on the dissecting table from leaking outward. Background Art

[0002] In order to solve the problem of formalin spilling out of the dissected body, a specific structure is proposed in the case of "Dissecting Operation Exhaust Device" in Taiwan Patent No. 504382. It mainly includes a laminar airflow generator and a dissecting table, wherein the air outlet of the laminar airflow generator will stably flow out a laminar airflow flowing vertically downward, and the laminar airflow covers the entire supporting surface of the dissecting table, thereby producing the effect of gas being pushed. An exhaust motor is set under the dissecting table. When the exhaust motor is running, the air in the area above the dissecting table supporting surface is stably sucked into the hollow flow channel from the airway grooves around the platform air groove of the dissecting table, and then discharged from the dissecting table through the airway outlet, so as to produce the effect of gas being pulled. According to the structure of the above patent case, although the formalin gas, odor or dangerous bacteria carried by the dissected body can be discharged from the dissecting environment, it is then discharged outdoors after being treated with activated carbon and a water scrubber. However, the anti-leakage method using the "full-cover air curtain" still has the following shortcomings that cannot be overcome: 1. The overall airflow distribution is uneven, which can easily cause backflow areas and leakage; 2. It cannot effectively resist the interference of ambient airflow. As long as there is an ambient airflow of more than 0.3 meters per second around the dissecting table, pollutants will be brought out of the dissecting table and cause leakage; 3. During the dissection operation, the operation of the dissector's hands will generate unstable airflow, allowing pollutants to leak out from around the hands.

[0003] Therefore, as shown in the "Shield and Dissecting Device Using the Shield (I)" of Taiwan Announcement No. TWM624242U, another "enclosed air curtain type anti-leakage dissecting table" is proposed to solve the above-mentioned problem. The shield includes a transparent cover top, a first side surface, a second vertical plate, a third side surface and a fourth side plate, which together frame a accommodating space; the first side surface is parallel to the third side surface, and at least one of the first side surface and the third side surface has at least one penetration portion; at least one of the transparent cover top, the second vertical plate and the fourth side plate has at least one through hole; and the periphery of the dissecting table of the dissecting device is upwardly connected to the periphery of the opening of the bottom surface of the shield, and an exhaust device is connected to at least one exhaust hole on the dissecting table surface, so that when the exhaust device is in operation, air is replenished through at least one penetration portion and at least one through hole, and then the contaminated gas above the dissecting table surface is extracted through at least one exhaust hole to prevent leakage to the outside. In actual use, since the "hood" is a completely enclosed frame structure, it can effectively resist the influence of downward cold air and environmental interference airflow, making the anti-leakage performance much higher than that of traditional dissecting tables. However, there are still two defects: 1. Due to the high concentration of polluted gas in the hood, it is easy for the polluted gas to leak out through the surroundings of the hands when the operator's hands are inserted into the hood; 2. If the operator needs to use instruments to open the skull or chest cavity, the "transparent hood" will block the instrument and prevent it from being smoothly inserted, which is very inconvenient. These two defects limit the practicality of the "enclosed air curtain anti-leakage dissecting table". Summary of the invention

[0004] In view of this, in order to provide a structure different from the commonly used technology and improve the above-mentioned shortcomings, the purpose of the present invention is to provide a topless air curtain type dissecting table, so as to solve the problems that the concentration of polluted gas in the shield of the commonly used "enclosed air curtain type anti-leakage dissecting table" is high, which makes it easy for the polluted gas to leak outward through the hands of the operator, and the "transparent cover" blocks the instruments that open the skull or chest cavity and cannot be smoothly placed in the shield. Instead, the present invention can provide an air suction groove on at least three side ends of a base, at least three vertical plates of the frame are respectively connected to the top edges of the three side ends, at least one vertical plate is provided with at least one penetration portion, and the top of at least one vertical plate has an air blowing groove to form at least one air curtain structure, so as to facilitate the smooth placement of instruments into the frame through the top of the frame, and when an exhaust device is in operation, the polluted gas above the table surface of the dissecting table can be extracted, and at the same time, when the operator uses the instrument, the polluted gas can be prevented from leaking out.

[0005] To achieve the above-mentioned purpose, the present invention provides a topless air curtain type dissecting table, which mainly includes a base and a frame, wherein the base has a first side end and a second side end parallel to each other in the long direction, and a third side end and a fourth side end parallel to each other in the short direction, the first side end has a first suction groove, the second side end has a second suction groove, the third side end has a third suction groove, and an air suction device connects the first suction groove, the second suction groove and the third suction groove; the frame includes a first vertical plate, a rear baffle plate and a second vertical plate arranged in succession, the first vertical plate is connected to the top edge of the first side end, the rear baffle plate is connected to the top edge of the fourth side end, and the second vertical plate is connected to the top edge of the second side end, and together frame a accommodating space; the first vertical plate has at least one first penetration portion of a movable switch, and the top end of the first vertical plate has a first blowing member, and the first blowing member is correspondingly arranged above the first suction groove for blowing air downward to form an air curtain.

[0006] During implementation, the first vertical plate includes a first vertical frame and a plurality of sliding doors, one side of the first vertical frame has a first boundary layer separation plate, and the other side of the first vertical frame has a second boundary layer separation plate; the plurality of sliding doors are respectively opened to form at least one first penetration portion, and at least one side of any sliding door has a boundary layer separation block.

[0007] During implementation, the second vertical plate has at least one second penetration portion with a movable switch, and the top of the second vertical plate has a second blowing member, which is correspondingly arranged above the second suction groove for blowing air downward to form another air curtain.

[0008] During implementation, a fourth side end of the pedestal has a fourth air suction groove, which is located on one side of the rear baffle and parallel to the rear baffle. The fourth air suction groove is connected to the exhaust device to extract the polluted gas in the accommodating space.

[0009] During implementation, the third side end of the pedestal has a front baffle, both sides of the front baffle are respectively connected to the first vertical plate and the second vertical plate, and the front baffle is located on one side of the third air suction groove and is parallel to the third air suction groove.

[0010] During implementation, the top edge height of the front baffle is lower than the top edge heights of the first vertical plate and the second vertical plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 1. It is an exploded view of the components of the first embodiment of the topless air curtain dissecting table of the present invention.

[0012] Figure 2 It is a side view of the frame of the topless air curtain type dissecting table of the present invention.

[0013] Figure 3 The figure is a top view of the base of the topless air curtain type dissecting table of the present invention.

[0014] Figure 4This is a three-dimensional appearance diagram of the first embodiment of the topless air curtain type dissecting table of the present invention.

[0015] Figure 5 This is a three-dimensional appearance diagram of a second embodiment of a topless air curtain type dissecting table according to the present invention.

[0016] Figure 6 The following is a table of design parameters for the frame size and blowing and suction slot speeds used in the simulation test of the present invention.

[0017] Figure 7 This is a table of setting parameters for the properties and release rates of pollutants used in the simulation test of the present invention.

[0018] Figure 8 The present invention was simulated and tested, and the velocity vector, streamline and concentration field distribution diagrams were obtained at the vertical Y-axis cross sections y=0.5cm, 10cm, 20cm and 29.5cm.

[0019] Fig. 9 The present invention was simulated and tested, and the velocity vector, streamline and concentration field distribution diagrams were obtained at the horizontal Z-axis cross sections of z=3cm, 20cm, 40cm and 77cm.

[0020] Fig.10 The present invention was simulated and tested, and the velocity vector, streamline and concentration field distribution diagrams were obtained at the horizontal X-axis cross sections x=0 cm, -0.25 cm, -0.4 cm and -0.975 cm.

[0021] Fig.11 The present invention is simulated and tested. When the air curtain suction speed (Vs) is 8 m / s, different front baffle heights (H head =0, 10cm, 20cm, 40cm) in close-up comparison.

[0022] Fig.12 The present invention is simulated and tested. When the air curtain suction speed (Vs) = 6m / s, different front baffle heights (H head =0, 10cm, 20cm, 40cm) in close-up comparison.

[0023] Fig.13 This is a front view of the simulation test of the present invention, showing a comparison of leakage concentrations with and without downward blowing cold air and with different front baffle heights.

[0024] Fig.14 This is a side view of the simulation test of the present invention, showing a comparison of leakage concentrations with and without downward blowing cold air and with different front baffle heights.

[0025] Fig.15This is a table of the local average leakage concentration of the frame head end after the simulation test of the present invention.

[0026] Fig.16 This is a table showing the local average leakage concentration of the first penetration portion after the simulation test of the present invention.

[0027] Explanation of the accompanying numbers: 1-topless air curtain type dissection table; 2-pedestal; 21-platform; 22-first side end; 23-second side end; 24-third side end; 25-fourth side end; 26-first suction groove; 27-second suction groove; 28-third suction groove; 29-fourth suction groove; 3-frame; 31-first vertical plate; 311-first vertical frame; 312,331-sliding door; 313-first boundary layer separation plate; 314-second boundary layer separation plate; 315-boundary layer separation block; 316-first penetration portion; 317-first blowing piece; 318-first blowing groove; 32-rear baffle; 33-second vertical plate; 332-second penetration portion; 333-second blowing piece; 334-second blowing groove; 34-accommodating space; 35-front baffle; 4-exhaust device. DETAILED DESCRIPTION

[0028] In order to further understand the present invention, the following preferred embodiments are listed, and the specific components of the present invention and the effects achieved are described in detail with reference to the accompanying drawings and figure numbers as follows:

[0029] The present invention provides a topless air curtain type dissecting table, which mainly comprises a base and a frame. The base has a first side end and a second side end parallel to each other in the long direction, and has a third side end and a fourth side end parallel to each other in the short direction, wherein the first side end has a first air suction groove, the second side end has a second air suction groove, the third side end has a third air suction groove, and an air suction device connects the first air suction groove, the second air suction groove and the third air suction groove; the frame comprises a first vertical plate, a rear baffle plate and a second vertical plate which are arranged in succession, the first vertical plate is connected to the top edge of the first side end, the rear baffle plate is connected to the top edge of the fourth side end, and the second vertical plate is connected to the top edge of the second side end; the first vertical plate has at least one first penetration portion, and the top end of the first vertical plate has a first blowing member, the first blowing member is correspondingly arranged above the first air suction groove for blowing air downward to form an air curtain. In this way, the instruments can be smoothly placed from the top of the frame, and the contaminated gas above the dissecting table can be extracted. At the same time, when the operator uses the instruments, the contaminated gas can be prevented from leaking out.

[0030] See also Figure 1 to Figure 4As shown, it is the first embodiment of the topless air curtain type dissection table 1 of the present invention, which mainly includes a base 2 and a frame 3. The top of the base 2 has a rectangular platform 21, and the long direction of the platform 21 has a first side end 22 and a second side end 23 parallel to each other, and the short direction of the platform 21 has a third side end 24 and a fourth side end 25 parallel to each other; the first side end 22 has a first suction groove 26, the second side end 23 has a second suction groove 27, and the third side end 24 has a third suction groove 28. The first suction groove 26, the second suction groove 27 and the third suction groove 28 are respectively long strip grooves; when implemented, any suction groove can also include a plurality of short straight grooves or holes arranged at intervals in a straight direction. The first suction groove 26, the second suction groove 27 and the third suction groove 28 are respectively connected to a blower to extract the polluted gas above the table surface of the platform 21, and the blower serves as the exhaust device 4.

[0031] The frame 3 includes a first vertical plate 31, a rear baffle 32 and a second vertical plate 33 which are continuously arranged; the first vertical plate 31 is connected to the top edge of the first side end 22, the rear baffle 32 is connected to the top edge of the fourth side end 25, and the second vertical plate 33 is connected to the top edge of the second side end 23, and together with the table top of the platform 21, a storage space 34 is enclosed.

[0032] The first vertical plate 31 includes a first vertical frame 311 and a plurality of sliding doors 312. One side of the first vertical frame 311 has a bent plate, which serves as a first boundary layer separation plate 313, and the other side of the first vertical frame 311 has another bent plate, which serves as a second boundary layer separation plate 314; at least one side of any sliding door 312 has a vertical trapezoidal block, which serves as a boundary layer separation block 315; when the plurality of sliding doors 312 are opened, at least one first penetration portion 316 is formed between each sliding door 312 for the dissector's hands to pass through. In practice, the plurality of sliding doors 312 can also be composed of a plurality of horizontally parallel vertical curtains, which can also allow the dissector's hands to pass through to perform dissection operations on the dissected body. A first air blowing member 317 is provided at the top of the first vertical plate 31. The first air blowing member 317 has a first long air blowing slot 318. The first air blowing slot 318 is connected to a cross-flow fan, and the first air blowing slot 318 is correspondingly arranged directly above the first air suction slot 26, so that air can be blown downwards in the first air blowing slot 318, and an air curtain can be formed when the first air suction slot 26 sucks air at the same time.

[0033] The second vertical plate 33 has the same structure as the first vertical plate 31 and is arranged in the opposite direction. The second vertical plate 33 has a plurality of sliding doors 331 arranged horizontally. After the plurality of sliding doors 331 are opened, at least one second penetration portion 332 can be formed to allow the hands of the person learning dissection to pass through. The top of the second vertical plate 33 has a second blowing member 333. The second blowing slot 334 of the second blowing member 333 is correspondingly arranged just above the second suction slot 27 for blowing downward to form another air curtain and prevent the polluted gas in the accommodation space 34 from leaking outward through the at least one second penetration portion 332. In practice, the second vertical plate 33 can also be a closed horizontal long plate to achieve a complete blocking effect.

[0034] Thus, when the hands of the dissector pass through at least one first penetration portion 316 between the plurality of sliding doors 312 to perform dissection of the dissected body, and when the hands of the dissector learner pass through at least one second penetration portion 332, the two air curtains can block the contaminated gas in the accommodation space 34 from leaking outward. The opening at the top of the frame 3 and the space above the third side end 24 can increase the natural air supply volume, discharge the contaminated gas above the table surface of the platform 21, and facilitate the movement of instruments into the accommodation space 34.

[0035] Figure 5 This is the second embodiment of the topless air curtain type dissecting table 1 of the present invention, which is different from the first embodiment in that: the top edge of the third side end 24 of the platform 21 has a front baffle 35, the front baffle 35 is located on one side of the third air suction groove 28 and is parallel to the third air suction groove 28, and the two sides of the front baffle 35 are respectively connected to the first vertical plate 31 and the second vertical plate 33; the fourth side end 25 of the platform 21 has a fourth air suction groove 29, the fourth air suction groove 29 is located on one side of the rear baffle 32 and is parallel to the rear baffle 32, and the fourth air suction groove 29 is connected to the exhaust device 4 for extracting the polluted gas in the accommodation space 34. During implementation, the top edge height of the front baffle 35 can also be lower than the top edge height of the first vertical plate 31 and the second vertical plate 33, so as to form a channel above the top edge of the front baffle 35, which can also increase the gas supply volume and facilitate the movement of instruments from the channel into the accommodation space 34 above the platform 21.

[0036] Please also see Figure 4 to Figure 7 As shown, Figure 6 This is the design parameter table of frame 3 size and blowing and suction slot speeds. Figure 7 The table is a parameter table for setting pollutant properties and release rates, and leakage concentrations are compared with and without downward blowing cold air under the conditions of no front baffle 35 and when the heights of the front baffle 35 are 10 cm, 20 cm and 40 cm respectively.

[0037] Through simulation tests with the above parameters and analysis and calculation using Computational Fluid Dynamics (CFD) computer program, the results show that the cooling system has a very good performance when there is no down-blowing air conditioner and no front baffle 35 (H head = 0) and the air curtain suction speed (Vs) = 8m / s. In the top view of the vertical Y-axis section y = 0.5cm, 10cm, 20cm and 29.5cm, the velocity vector, streamline and concentration field distribution diagram are as follows Figure 8 As shown; in the front view of the horizontal Z-axis section z = 3cm, 20cm, 40cm and 77cm, the velocity vector, streamline and concentration field distribution diagram are as follows Fig. 9 As shown; in the side view of the horizontal X-axis section x = 0cm, -0.25cm, -0.4cm and -0.975cm, the velocity vector, streamline and concentration field distribution diagram are as follows Fig.10 As shown; Fig.11 For different front baffle heights (H head =0, 10cm, 20cm, 40cm) recent comparison pictures; and Fig.12 When the air curtain suction speed (Vs) = 6m / s, different front baffle heights (H head =0, 10cm, 20cm, 40cm) of recent comparison pictures. Fig.13 , Fig.14 As shown, it is shown in front view and side view respectively, with and without downward blowing cold air, and with different front baffle heights (H head =0, 10cm, 20cm, 40cm) respectively. The arrows represent the velocity vector, and the black area along the tangent direction of the velocity vector represents the streamline; the colored parts represent the concentration, pink represents the highest concentration (C) greater than 1.0ppm, followed by brown, yellow, light green, bright green, light blue to dark blue (the concentration of dark blue is 0ppm).

[0038] According to the test results, the local average leakage concentration at the head end of frame 3 is as follows: Fig.15 As shown, the local average leakage concentration of the first penetration portion 316 is as shown Fig.16 As shown, whether there is downward blowing cold air, no front baffle 35 or the front baffle 35 has different heights, it can effectively prevent the polluted gas in the accommodating space 34 from leaking outward and discharge the polluted gas above the table surface of the platform 21 outward.

[0039] In summary, according to the contents disclosed by the present invention, the present invention can indeed achieve the intended purpose. The present invention provides a topless air curtain type dissecting table, which not only has an opening at the top of the frame for natural air replenishment but also facilitates the insertion of instruments into the frame from above or from the side; by adding air suction grooves at the head and feet of the body to resist the influence of cold air blowing downward; through the air curtain structure, it can prevent the leakage of polluted gas caused by pulling the sliding door and the leakage caused by the operator when using the instrument. At the same time, when a vacuum device is running, the polluted gas above the dissecting table can be extracted, which is of great value for industrial use and meets the requirements of invention patent applications.

Claims

1. A topless air curtain type dissection table, characterized by: include: A pedestal, having a first side end and a second side end parallel to each other in a long direction, a third side end and a fourth side end parallel to each other in a short direction, the first side end having a first air suction groove, the second side end having a second air suction groove, the third side end having a third air suction groove, and an air extraction device connecting the first air suction groove, the second air suction groove and the third air suction groove; and A frame includes a first vertical plate, a rear baffle plate and a second vertical plate which are arranged in series, wherein the first vertical plate is connected to the top edge of the first side end, the rear baffle plate is connected to the top edge of the fourth side end, and the second vertical plate is connected to the top edge of the second side end, and together they frame a accommodating space; the first vertical plate has at least one first penetration portion of a movable switch, and the top end of the first vertical plate has a first blowing member, and the first blowing member is correspondingly arranged above the first suction groove for blowing air downward to form an air curtain.

2. The topless air curtain type dissection table as claimed in claim 1, characterized in that: The first vertical plate includes a first vertical frame and a plurality of sliding doors. One side of the first vertical frame has a first boundary layer separation plate, and the other side of the first vertical frame has a second boundary layer separation plate. The plurality of sliding doors are respectively opened to form the at least one first penetration portion, and at least one side of any of the sliding doors has a boundary layer separation block.

3. The topless air curtain type dissection table according to claim 1, characterized in that: The second vertical plate has at least one second penetration portion with a movable switch, and the top of the second vertical plate has a second blowing member, which is correspondingly arranged above the second suction groove for blowing air downward to form another air curtain.

4. The topless air curtain type dissection table as claimed in claim 1, characterized in that: The fourth side end of the pedestal has a fourth air suction groove, the fourth air suction groove is located at one side of the rear baffle and parallel to the rear baffle, and the fourth air suction groove is connected to the exhaust device to extract the polluted gas in the accommodating space.

5. The topless air curtain type dissecting table according to claim 1 or 4, characterized in that: The third side end of the pedestal has a front baffle, the two sides of the front baffle are respectively connected to the first vertical plate and the second vertical plate, and the front baffle is located at one side of the third air suction groove and is parallel to the third air suction groove.

6. The topless air curtain type dissection table as claimed in claim 5, characterized in that: The top edge height of the front baffle is lower than the top edge heights of the first vertical plate and the second vertical plate.

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