Assembly type sterile operation table

Abstract

The utility model relates to the technical field of biochemical experiment equipment, and particularly discloses an assembly type sterile operation table. The air supply device structurally comprises a workbench, an air supply main machine for blowing air to the workbench and a side wall connected between the workbench and the air supply main machine, the air supply main machine comprises a primary filter and a high-efficiency filter, a pressure stabilizing chamber is arranged between the high-efficiency filter and the primary filter, the workbench comprises a table board, an air inlet is formed in the table board, and the air inlet is communicated with the air supply main machine. The air inlet is communicated with an air circulation channel, the air circulation channel is communicated with the pressure stabilizing chamber, clean air on the workbench is circulated through the air circulation channel, the load of a high-efficiency filter is reduced, and the problems that in the prior art, the high-efficiency filter of a sterile operation table is frequently replaced, and the working efficiency is low are solved. And the maintenance cost of the sterile operation table is high.

Description

Technical Field

[0001] The utility model relates to the technical field of biochemical experimental equipment, in particular to an assembled sterile operating table. Background Art

[0002] A sterile operating table, also known as an ultra-clean workbench, refers to an operating table in which the air in a specific working area of ​​the operating table is filtered through a pre-treatment filter, and then needs to be pressed into a static pressure box by a centrifugal fan, and then passed through an air high-efficiency filter for secondary filtration. The filtered air is delivered in a vertical or horizontal airflow state, and the clean airflow blown out from the air outlet surface of the air high-efficiency filter has a uniform cross-sectional wind speed, which can exclude the original air in the working area and take away dust particles and biological particles to form a sterile and highly clean working environment. In order to facilitate transportation, manufacturers usually produce the main structures of each part first, such as the air supply system, table top, etc. When producing sterile operating tables, they are transported to the laboratory for assembly after production. Therefore, it is also called an assembled sterile operating table.

[0003] The existing clean benches can provide a sterile, dust-free and other experimental environments that meet various experimental requirements. However, since the air needs to be filtered through a high-efficiency filter for secondary filtration to remove dust particles and biological particles in the air, the high-efficiency filter reaches its adsorption limit after being used for too long, clogging the high-efficiency filter, reducing the wind speed, carrying out dust particles and biological particles, and failing to meet the corresponding sterility requirements.

[0004] In order to solve the above problems, general technicians adopt the method of regularly replacing high-efficiency filters to ensure ventilation and aseptic requirements. For example, the patent document with application number: CN201820083462.8 discloses a dust-removable clean bench, in which a removable high-efficiency filter is provided inside the bench, and a rectangular filter screen plate covering the high-efficiency filter is provided on the bench top. A hinge shaft is provided on one side of the filter screen plate, which is rotatably connected to the bench, and locking pieces are provided between the two sides of the filter screen plate facing away from the hinge shaft and the two side panels. The combination of the locking piece and the filter screen plate makes it more convenient to replace the high-efficiency filter.

[0005] Although directly replacing the high-efficiency filter of the sterile operating table is a once-and-for-all method, frequent replacement of the high-efficiency filter will lead to higher maintenance costs in later use and troublesome replacement. Therefore, a sterile operating table with a longer high-efficiency filter replacement cycle but that can ensure its sterility requirements is needed. Utility Model Content

[0006] The utility model aims to provide an assembled aseptic operating table to solve the technical problem that the high-efficiency filter of the aseptic operating table in the prior art mentioned above is frequently replaced, resulting in high maintenance cost of the aseptic operating table.

[0007] In order to solve the above problems, the technical solution adopted by the utility model is as follows: an assembled sterile operating table, including a workbench, an air supply main unit for blowing air to the workbench, and a side wall connected between the workbench and the air supply main unit, the air supply main unit including a primary filter and a high-efficiency filter, a pressure stabilizing chamber is provided between the high-efficiency filter and the primary filter, the workbench includes a table top, the table top is provided with an air inlet, the air inlet is connected to an air circulation channel, and the air circulation channel is connected to the pressure stabilizing chamber.

[0008] The beneficial effects of this embodiment are:

[0009] 1. In the prior art, all the air blown out of the air supply system is the indoor air drawn into the system by the fan. The indoor air contains many dust particles and biological particles, so that the high-efficiency filter is always filtering dust particles and biological particles. Therefore, the high-efficiency filter is easy to reach the adsorption limit and needs to be replaced. However, after observation, the inventor found that when the sterile operating table is just turned on, the air in the workbench contains dust particles and biological particles, but when the workbench has been working for a period of time, the air blown out of the workbench uniformly brings the dust particles and biological particles in the workbench to the outside of the workbench. Therefore, the inventor sets an air inlet on the workbench in this application, and the air inlet circulates to the pressure stabilizing chamber between the high-efficiency filter and the primary filter through the air circulation channel. This design makes part of the air in the air supply system come from the indoor air. The other part comes from the clean air in the workbench, and the clean air in the workbench contains few or even no dust particles and biological particles. Therefore, this application reduces the load of the high-efficiency filter, takes longer to reach the adsorption limit, and prolongs the replacement cycle of the high-efficiency filter.

[0010] 2. Since the circulating air in the machine comes from the clean air in the workbench, it does not need to pass through the primary filter and can be directly introduced into the pressure stabilizing chamber, which reduces the workload of the primary filter and prolongs the service life of the primary filter.

[0011] Furthermore, a circulation fan for providing power for circulating air is provided in the circulation channel. The circulation fan provides pressure difference power for air circulation.

[0012] Furthermore, a guide plate for guiding air is provided in the circulation channel, and the guide plate reduces the resistance of air circulation.

[0013] Furthermore, the side wall is provided with an ultraviolet sterilization lamp that can move parallel to the bottom surface of the air supply main unit. The movable ultraviolet sterilization lamp moves during the sterilization process, without any dead corners formed by shielding, and the sterilization is sufficient.

[0014] Furthermore, the ultraviolet germicidal lamp is connected to a driving rod, and the driving rod is connected to a driving motor for driving the ultraviolet germicidal lamp to move.

[0015] Furthermore, a socket strip is provided on the side wall of the workbench, which facilitates the use of electrical equipment during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model.

[0017] Figure 2 This is a motion trajectory diagram of the air circulation in the embodiment of the utility model.

[0018] Figure 3 This is a driving structure diagram of the ultraviolet germicidal lamp according to an embodiment of the utility model. DETAILED DESCRIPTION

[0019] The following is further described in detail through specific implementation methods:

[0020] The figure marks in the drawings of the specification include: support 1, workbench 2, air inlet 21, lighting lamp 22, extension strip 23, ultraviolet sterilization lamp 24, drive rod 241, drive motor 242, light rod 243, air supply main unit 3, primary filter 31, air inlet fan 32, high efficiency filter 33, circulating fan 34, air circulation channel 35, guide plate 351, pressure stabilizing chamber 36, display screen 37, control button 38.

[0021] Implementation example Figures 1 to 3 As shown: an assembled aseptic operating table, including a workbench 2, Figure 1 The direction is the description direction. A support 1 for supporting the workbench is arranged under the workbench 2. The support 1 is a support frame welded with galvanized square tubes, which mainly supports the workbench 2.

[0022] Side walls are welded vertically upward on both sides of the workbench 2, and lighting lamps 22 and socket strips 2 are installed on the side walls to facilitate the connection of electrical equipment and observation during testing. The side walls are welded to the bottom of the casing of the air inlet main unit 32 so that the side walls support the air inlet main unit 32.

[0023] The workbench 2 and the side wall on the rear side of the workbench 2 are both sandwich structures, and the interlayers of the two are connected. An air circulation channel 35 is arranged in the interlayer. An air inlet 21 is opened on the surface of the workbench 2, and the air inlet 21 is connected to the air circulation channel 35. The air circulation channel 35 is designed to extend from the interlayer below the surface of the workbench 2 to the side wall interlayer on the rear side of the workbench 2, and finally connected to the pressure stabilizing chamber 36 of the air supply host 2. An arc-shaped guide plate 351 is arranged at any corner of the air circulation channel 35. The guide plate 351 reduces the resistance of the entire channel to the air circulation process. A circulation fan 34 is arranged at the connection between the air circulation channel 35 and the pressure stabilizing chamber 36. The circulation fan 34 provides negative pressure for the entire air circulation channel 35, so that air can enter the air circulation channel 35 through the air inlet 21 and return to the pressure stabilizing chamber 36. Therefore, the negative pressure provided by the circulation fan 34 can be adjusted, and then the amount of air entering from the air inlet 21 can be adjusted.

[0024] The air supply main unit 3 is an integral device of a rectangular housing enclosing a primary filter 31, an air intake fan 32, a high-efficiency filter 33, a pressure stabilizing chamber 36 and various electronic components. The housing of the air supply main unit 3 is a galvanized steel plate with holes, and a primary filter 31 is arranged under the tinned steel plate. The primary filter 31 is placed on a sieve plate, and the sieve plate is welded and fixed to the housing. An air intake fan 32 is arranged at the bottom of the primary filter 31, and the air intake fan 32 is fixed to the sieve plate with bolts. Below the air intake fan 32 is a pressure stabilizing chamber 36. Therefore, when the air intake fan 32 is started, When the air is in motion, air can continuously flow from the top of the air supply main unit 3 through the primary filter 31 into the stabilizing chamber 36. A high-efficiency filter 33 is set below the stabilizing chamber 36. Since a large amount of air enters the stabilizing chamber 32 and the pressure is high, the air moves downward, passes through the high-efficiency filter 33, and blows toward the workbench 2 from the air supply holes on the bottom plate of the high-efficiency filter 33, forming a stable clean airflow. The airflow has a certain and uniform cross-sectional wind speed, which can remove the original air in the working area and take away dust particles and biological particles to form a sterile and highly clean working environment. On the front panel of the air supply main unit 3, there is still a display screen 37 that can display the status of related parameters such as wind speed, lighting, switch, sterilization, etc., and below the display screen 37, there are control buttons 38 that can adjust these parameters.

[0025] by Figure 1 The direction is described as follows. A driving structure of the ultraviolet germicidal lamp 24 is also provided on the upper part of the left and right side walls of the workbench 2. The driving structure is as follows Figure 1 , Figure 3As shown, it includes a driving rod 241 across the left and right sides, the driving rod 241 is a screw structure, and is rotatably connected to the left and right side walls of the workbench 2 by bearings, and also includes a light rod 243 parallel to the driving rod 241, the light rod 243 is fixedly connected to the left and right side walls of the workbench 2, and a driving motor 242 is welded at the right end of the driving rod 241, and the driving motor 242 is a DC motor that can rotate forward and backward. One end of the ultraviolet germicidal lamp 24 connected to the driving rod 241 is a nut structure sleeved on the driving rod 241, and the other end is a slider sleeved on the light rod 243. Therefore, when the driving motor 242 is started, the driving rod 241 rotates with it. Since the nut at one end of the ultraviolet germicidal lamp 24 is on the driving rod 241, and the other end is limited by the light rod 243, the ultraviolet germicidal lamp 24 moves along the driving rod 241. When the sterile operating table is not used, the ultraviolet sterilization lamp 24 is used for sterilization. The ultraviolet sterilization lamp 24 moves slowly along the driving rod 241 while irradiating and sterilizing the inside of the workbench. Since the ultraviolet sterilization lamp 24 can move, there is no dead angle formed by obstruction during sterilization.

[0026] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An assembled aseptic operating table, comprising a workbench, an air supply main unit for blowing air to the workbench, and a side wall connecting the workbench and the air supply main unit, characterized in that: The air supply main unit includes a primary filter and a high-efficiency filter, a pressure stabilizing chamber is arranged between the high-efficiency filter and the primary filter, the workbench includes a table top, the table top is provided with an air inlet, the air inlet is connected to an air circulation channel, and the air circulation channel is connected to the pressure stabilizing chamber.

2. The assembled aseptic operating table according to claim 1, characterized in that: A circulation fan for providing power for circulating air is arranged in the circulation channel.

3. The assembled aseptic operating table according to claim 2, characterized in that: A guide plate for guiding air is arranged in the circulation channel.

4. The assembled aseptic operating table according to claim 1 is characterized in that: The side wall is provided with an ultraviolet sterilization lamp which can move parallel to the bottom surface of the air supply main unit.

5. The assembled aseptic operating table according to claim 4 is characterized in that: The ultraviolet germicidal lamp is connected with a driving rod, and the driving rod is connected with a driving motor for driving the ultraviolet germicidal lamp to move.

6. The assembled aseptic operating table according to claim 1, characterized in that: A socket strip is also provided on the side wall of the workbench.

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