A negative pressure experimental instrument purification unit

Abstract

The present invention relates to the technical field of medical operating tables, and in particular to a negative pressure laboratory instrument purification station. The negative pressure laboratory instrument purification station includes a frame, a side exhaust assembly, an upper exhaust assembly, and an air supply assembly. A table top is provided on the frame, the side exhaust assembly includes a side air inlet and a side air guide channel, and a side air inlet is provided on at least one side of the left and right directions of the table top. The gas on the table top can enter the side air guide channel through the side air inlet and be discharged through the side air guide channel. The upper exhaust assembly includes an upper air inlet and an upper air guide channel. The upper air inlet is located above the table top and is arranged facing the table top. The gas on the table top can enter the upper air guide channel through the upper air inlet and be discharged through the upper air guide channel. At the same time, the air supply assembly is arranged above the frame, and the air supply assembly includes an air supply port, which is located above the table top, so as to form a downward airflow above the operator. By forming negative pressure exhaust, the air supply assembly provides fresh air, improves safety performance, and has low cost.

Description

Technical Field

[0001] The invention relates to the technical field of medical operating tables, in particular to a negative pressure laboratory instrument purification station. Background Art

[0002] There are many experimental instruments in medical laboratories. Some of the experimental instruments and their operation processes will produce polluted gases or molecular-level harmful substances that endanger the occupational working environment. In order to ensure that the polluted gases or molecular-level harmful substances generated by some experimental instruments and equipment during work or scientific research have minimal or no impact on the operators, the experimental instruments and equipment should be placed in equipment that can process and channel the polluted gases and molecular-level harmful substances to protect the operators.

[0003] Existing medical workbenches are usually equipped with negative pressure equipment to generate negative pressure to recover polluted gases and molecular-level harmful substances. The negative pressure equipment is mostly composed of biological safety cabinets and fume hoods. The former is suitable for laboratories with requirements for cleanliness, and the use and operation costs of conventional laboratories are high. The latter is the most common negative pressure ventilation equipment in laboratories. Common negative pressure ventilation equipment can only perform negative pressure exhaust at the top, and some polluted gases and molecular-level harmful substances will diffuse into the air from the side, resulting in poor exhaust effect.

[0004] In order to solve the above problems, it is urgent to provide a negative pressure laboratory instrument purification station to solve the problems of high cost and poor exhaust effect. Summary of the invention

[0005] The purpose of the present invention is to provide a negative pressure laboratory instrument purification station to achieve the effect of utilizing negative pressure exhaust and providing fresh air at the same time, thereby improving the safety performance of the negative pressure laboratory instrument purification station.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A negative pressure experimental instrument purification station, comprising:

[0008] A frame, wherein a table top is provided on the frame;

[0009] A side exhaust assembly, the side exhaust assembly comprising a side air inlet and a side air guide channel, the side air inlet being provided at least on one side in the left-right direction of the table top, the gas on the table top being able to enter the side air guide channel through the side air inlet and be discharged through the side air guide channel;

[0010] an upper air exhaust component, the upper air exhaust component comprising an upper air inlet and an upper air guiding channel, the upper air inlet being located above the table top and arranged facing the table top, the gas on the table top can enter the upper air guiding channel through the upper air inlet and be discharged through the upper air guiding channel; and

[0011] The air supply component is arranged above the frame, and the air supply component includes an air supply port, and the air supply port is located above the table top.

[0012] As an optional solution, the frame includes:

[0013] a lower cabinet, the table top being arranged on the lower cabinet; and

[0014] Two side cavities, the two side cavities are respectively arranged on the left and right sides of the table top, the side air inlet is arranged on the side of the side cavity facing the table top, the inner cavity of the side cavity is the side air guide cavity, and the side air guide cavity is a part of the side air guide channel.

[0015] As an optional solution, the side exhaust assembly includes:

[0016] A first baffle is disposed in the frame along the up-down direction;

[0017] A second baffle is parallel to and spaced from the first baffle to form a rear exhaust cavity, the second baffle is located in front of the first baffle, the lower end of the second baffle is connected to the upper end surfaces of the two side cavities, and the side air guide cavity is connected to the rear exhaust cavity;

[0018] a third baffle connecting upper ends of the first baffle and the second baffle; and

[0019] The side exhaust duct is arranged between the upper top plate of the frame and the third baffle in the up and down direction, and the lower end of the side exhaust duct is connected to the rear exhaust cavity, and the upper end of the side exhaust duct is connected to the outside, forming the side air guide channel that flows through the side air inlet, the side air guide cavity, the rear exhaust cavity and the side exhaust duct in sequence.

[0020] As an optional solution, the side exhaust duct includes:

[0021] A main pipe is arranged near the top and one end of the main pipe is connected to the outside; and

[0022] An air collecting duct, wherein the outlet end of the air collecting duct is connected to the lower end surface of the main pipe, the inlet end of the air collecting duct is communicated with the rear exhaust cavity, and the size of the inlet end is smaller than the size of the outlet end.

[0023] As an optional solution, the upper exhaust assembly includes:

[0024] An upper shielding plate is arranged facing the top of the table top, the upper air inlet is located on the upper shielding plate, and the upper shielding plate is arranged tilted so that the distance from the upper shielding plate to the table top gradually decreases from the front to the rear.

[0025] As an optional solution, the upper exhaust assembly further includes:

[0026] A connecting plate connected to the upper shielding plate, wherein the connecting plate and the frame are arranged to form a sealed upper exhaust cavity; and

[0027] The upper exhaust duct, the side exhaust assembly includes a main pipe connected to the outside, one end of the upper exhaust duct is connected to the upper exhaust cavity, and the other end is connected to the inside of the main pipe.

[0028] As an optional scheme, the upper exhaust duct and the main pipe are respectively provided with air volume detection components, the air volume detection component located on the upper exhaust duct is configured to detect the air volume flowing through the upper exhaust assembly, and the air volume detection component located on the main pipe is configured to detect the air volume flowing through the side exhaust assembly, a first sealing plate is provided at one end of the upper exhaust duct connected to the upper exhaust cavity, and a second sealing plate is provided in the side exhaust assembly, and the first sealing plate and the second sealing plate adjust the air volume flowing through the upper exhaust assembly and the side exhaust assembly according to the detection result of the air volume detection component.

[0029] As an optional solution, the air supply component includes:

[0030] An air supply flange is arranged on the upper top plate at the upper end of the frame, and the air supply flange is connected to the outside through the upper top plate;

[0031] Two air guide plates are connected to the end surface of the air supply flange facing away from the upper top plate, and the distance between the two air guide plates gradually increases in the direction away from the air supply flange, extending in a trumpet shape in the direction away from the air supply flange;

[0032] Two fourth baffles are respectively connected to two ends of the two air guide plates and connected to the frame; and

[0033] The air supply plate is protruding forward from the upper end of the frame, and an air supply channel is formed between the air guide plate, the fourth baffle plate, the air supply plate and the frame. The air supply plate is provided with a plurality of air supply ports, and the gas from the air supply flange passes through the air supply channel and is blown out through the air supply ports.

[0034] As an optional solution, the air supply plate is tilted downward so that the distance from the air supply plate to the table surface gradually decreases in the direction from the back to the front.

[0035] As an optional solution, the frame further includes:

[0036] The upper cabinet is located above the table top, the air supply plate is connected to the upper end of the upper cabinet, and the upper cabinet includes a cabinet door arranged in the front, and the cabinet door is inclined from front to rear along the direction from top to bottom.

[0037] As an optional solution, the frame includes side cavities located on both sides, and the negative pressure experimental instrument purification station also includes:

[0038] A front stopper, a portion of which is inserted into the side cavity, and the front stopper is slidably connected to the side cavity along a front-to-back direction; and

[0039] The collecting plate is connected to the front edge of the table top and is arranged to sink in front of the table top in a funnel-like manner. When the front stopper slides forward, the collecting plate can recycle the garbage on the table top.

[0040] As an optional solution, the front stopper includes:

[0041] A main body, slidably connected to the side cavity; and

[0042] The flip plate is located in front of the main body and is rotatably connected to the main body. When the flip plate is rotated 90 degrees, the flip plate can provide support for the operator's arm.

[0043] As an optional solution, the frame further includes a side cavity, wherein an upper end surface of one of the side cavities is provided with a dirt port, and the negative pressure experimental instrument purification station further includes:

[0044] a cover plate, which is disposed on the waste port in an openable or closable manner; and

[0045] The sliding groove is arranged below the waste opening and can be drawn out and arranged on the frame. The sliding groove is configured to accommodate garbage thrown in from the waste opening.

[0046] As an optional solution, the inner cavity of the side cavity is a side air guiding cavity, and the inner cavity of the sliding groove is connected to the side air guiding cavity so as to be connected to the side air guiding channel.

[0047] The beneficial effects of the present invention are:

[0048] The present invention provides a negative pressure experimental instrument purification station, which also includes a side exhaust assembly, an upper exhaust assembly and an air supply assembly. The side exhaust assembly includes a side air inlet and a side air guide channel, and the side air inlet is provided at least on one side of the left and right directions of the table. The gas on the table can enter the side air guide channel through the side air inlet and be discharged through the side air guide channel. The upper exhaust assembly includes an upper air inlet and an upper air guide channel. The upper air inlet is located above the table and is arranged facing the table. The gas on the table can enter the upper air guide channel through the upper air inlet and be discharged through the upper air guide channel. The negative pressure experimental instrument purification station simultaneously performs negative pressure exhaust through the side air guide channel and the upper air guide channel, realizing the multi-channel negative pressure airflow organization capability, and can fully capture the polluted gas and molecular-level harmful substances generated on the experimental device, and prevent the polluted gas or molecular-level harmful substances from spreading toward the operator. At the same time, the air supply component is arranged above the frame, and the air supply component includes an air supply port, which is located above the table top, thereby forming a downward airflow above the operator, and the downward direction of the airflow is in front of the operator, thereby forming a negative pressure exhaust, blocking the polluted gas and molecular-level harmful substances generated by the experimental instruments and equipment from diffusing beyond the work position and affecting the operator's breathing area. The air supply component provides fresh air, so that the operator can breathe fresh air during the experiment, thereby improving the safety performance of the negative pressure experimental instrument purification position, and the negative pressure experimental instrument purification position has low experimental environment requirements, which is conducive to reducing the processing cost of the negative pressure experimental instrument purification position. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0050] Figure 1 The structure of the negative pressure experimental instrument purification station provided by the embodiment of the present invention is schematically shown. Figure 1 ;

[0051] Figure 2 The partial structure diagram of the negative pressure experimental instrument purification station provided by the embodiment of the present invention is Figure 1 ;

[0052] Figure 3 The structure of the negative pressure experimental instrument purification station provided by the embodiment of the present invention is schematically shown. Figure 2 ;

[0053] Figure 4 The partial structure diagram of the negative pressure experimental instrument purification station provided by the embodiment of the present invention is Figure 2 ;

[0054] Figure 5 It is a schematic diagram of the top view of the purification position of the negative pressure experimental instrument provided in an embodiment of the present invention;

[0055] Figure 6 It is a structural schematic diagram of the purification position of the negative pressure experimental instrument when the front stopper is pulled out provided by an embodiment of the present invention;

[0056] Figure 7 It is a front view structural schematic diagram of a purification station of a negative pressure experimental instrument provided in an embodiment of the present invention;

[0057] Figure 8 It is a structural schematic diagram of the embedding experiment device provided in an embodiment of the present invention when it is arranged on a purification position of a negative pressure experiment instrument.

[0058] The following are marked in the figure:

[0059] 100-frame; 110-table; 120-lower cabinet; 130-side cavity; 131-dirt port; 140-upper cabinet; 141-cabinet door; 150-upper top plate; 160-left side plate; 170-right side plate;

[0060] 200-side exhaust assembly; 210-side air inlet; 220-side air guide channel; 221-side air guide cavity; 222-rear exhaust cavity; 230-first baffle; 240-second baffle; 250-third baffle; 260-side exhaust duct; 261-main tube; 262-air collecting duct; 263-second sealing plate; 270-exhaust flange;

[0061] 300-upper exhaust assembly; 310-upper air inlet; 320-upper air guide channel; 330-upper shielding plate; 340-connecting plate; 350-upper exhaust duct;

[0062] 400-air supply assembly; 410-air supply port; 420-air supply flange; 430-air guide plate; 440-fourth baffle; 450-air supply plate; 460-air supply channel;

[0063] 500-air volume detection piece;

[0064] 600-front stopper; 610-main body; 620-flip plate; 621-handle;

[0065] 700-collection plate; 800-cover plate; 810-handle; 900-sliding slot; 1000-lighting assembly; 1100-ultraviolet disinfection assembly; 1200-display; 1300-socket;

[0066] 2000-embedding experiment device; 2001-paraffin infusion port; 2002-pollutant port cover; 2003-pollutant emission port; 2004-liquid paraffin recovery port; 2005-heat dissipation hole. DETAILED DESCRIPTION

[0067] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only partial structures related to the present invention are shown in the accompanying drawings, rather than the entire structure.

[0068] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the connection of the internal structures of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0070] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0071] like Figure 1As shown, the present embodiment provides a negative pressure type experimental instrument purification station, which is used in medical laboratories and other related laboratories. It can be understood that different medical experiments use different experimental devices. In order to expand the application scope of the negative pressure type experimental instrument purification station table 110, the negative pressure type experimental instrument purification station includes a frame 100, and a table 110 is arranged on the frame 100. The table 110 is used to place the experimental device. When using different experimental devices, it is only necessary to place the corresponding experimental device on the table 110. The operation is simple and quick, and the table 110 of the negative pressure type experimental instrument purification station can directly place the experimental device, which has high inclusiveness.

[0072] Specifically, see Figure 1 and Figure 2 The frame 100 includes an upper top plate 150, a left side plate 160, a right side plate 170 and a rear cover plate. The left side plate 160 and the right side plate 170 are respectively connected to the two sides of the rear cover plate. The upper top plate 150 is arranged on the top of the left side plate 160, the right side plate 170 and the rear cover plate, and is connected to the three at the same time. The upper top plate 150, the left side plate 160, the right side plate 170 and the rear cover plate are jointly arranged to form a frame 100 structure with an open space in the front.

[0073] The table top 110 is arranged in the middle of the open space in front of the frame 100, so that a structure similar to a desktop is formed between the frame 100 and the table top 110. Furthermore, the frame 100 also includes a lower cabinet 120 for storing items, the lower cabinet 120 is located below the table top 110, and the lower cabinet 120 can be one or two. In this embodiment, there are two lower cabinets 120, and the two lower cabinets 120 are respectively located below the table top 110 and are arranged close to the left and right sides, so that the left side of the lower cabinet 120 located on the left side shares the left side plate 160 with the frame 100 as a whole, and the right side of the lower cabinet 120 located on the right side shares the right side plate 170 with the frame 100 as a whole, which is conducive to simplifying the structure of the frame 100 and reducing costs.

[0074] In addition, the rack 100 further includes an upper cabinet 140, which is located above the countertop 110, so that the operator can store items in the upper cabinet 140. The upper cabinet 140 includes a cabinet door 141 arranged at the front for easy access. In addition, the upper cabinet 140 is spaced from the countertop 110, so that an open space is located between the upper cabinet 140 and the lower cabinet 120.

[0075] The frame 100 includes two side cavities 130, which are respectively arranged on the left and right sides of the table 110 to provide support for the table 110. At the same time, the upper end surface of the side cavity 130 is higher than the height of the table 110 to form a sunken table 110, which is conducive to improving the safety of placing the experimental device on the table 110 to avoid falling.

[0076] There are many experimental instruments in medical laboratories. Some of the experimental instruments and their operation processes will produce polluted gases or molecular-level harmful substances that endanger the occupational working environment. In order to ensure that the polluted gases or molecular-level harmful substances generated by some experimental instruments and equipment during work or scientific research have minimal or no impact on the operators, the experimental instruments and equipment should be placed in equipment that can process and channel the polluted gases and molecular-level harmful substances to protect the operators.

[0077] Please continue to see Figure 1 and Figure 2 Specifically, in the negative pressure experimental instrument purification position of the present embodiment, the negative pressure experimental instrument purification position also includes a side exhaust component 200, an upper exhaust component 300 and an air supply component 400. The side exhaust assembly 200 includes a side air inlet 210 and a side air duct 220. The side air inlet 210 is provided on at least one side of the table 110 in the left and right directions. The gas on the table 110 can enter the side air duct 220 through the side air inlet 210 and be discharged through the side air duct 220. The upper exhaust assembly 300 includes an upper air inlet 310 and an upper air duct 320. The upper air inlet 310 is located above the table 110 and is arranged facing the table 110. The gas on the table 110 can enter the upper air duct 320 through the upper air inlet 310 and be discharged through the upper air duct 320. The negative pressure experimental instrument purification position simultaneously performs negative pressure exhaust through the side air duct 220 and the upper air duct 320, realizing the multi-channel negative pressure airflow organization capability, which can comprehensively capture the polluted gas and molecular-level harmful substances generated on the experimental device, and prevent the polluted gas or molecular-level harmful substances from spreading toward the operator. At the same time, the air supply component 400 is arranged above the frame 100, and the air supply component 400 includes an air supply port 410. The air supply port 410 is located above the table 110, thereby forming a downward airflow above the operator, and the downward direction of the airflow is in front of the operator, thereby forming a negative pressure exhaust, blocking the polluted gas and molecular-level harmful substances generated by the experimental instruments and equipment from diffusing outside the work position and affecting the operator's breathing area. The air supply component 400 provides fresh air, so that the operator can breathe fresh air during the experiment, thereby improving the safety performance of the negative pressure experimental instrument purification position, and the negative pressure experimental instrument purification position has low experimental environment requirements, which is conducive to reducing the processing cost of the negative pressure experimental instrument purification position.

[0078] The side air inlet 210 is arranged on the side of the side cavity 130 facing the table 110. The inner cavity of the side cavity 130 is the side air guide cavity 221. The side air guide cavity 221 is a part of the side air guide channel 220. Therefore, the side air inlet 210 is arranged in the structure of the side cavity 130 close to the table 110 to realize the close-range recovery of polluted gas or molecular-level harmful substances, and effectively avoid the diffusion of polluted gas or molecular-level harmful substances. At the same time, the side air guide cavity 221 is arranged by using the existing structure of the frame 100, which is conducive to simplifying the structure of the purification table 110 of the negative pressure experimental instrument and reducing costs. It can be understood that there are multiple side air inlets 210, so as to improve the recovery efficiency. The multiple side air inlets 210 can be arranged in an array on the side wall of the side cavity 130. Preferably, the side cavities 130 on both sides are provided with side air inlets 210 and connected to the side air guide channels 220, so as to recover polluted gases and molecular-level harmful substances on both sides at the same time, thereby improving the recovery ratio.

[0079] See also Figure 2 and Figure 3 The side exhaust assembly 200 includes a first baffle 230, a second baffle 240, a third baffle 250 and a side exhaust duct 260. The first baffle 230 is arranged in the frame 100 along the up-down direction. The specific position of the first baffle 230 is parallel to the rear sealing plate and arranged in front of the rear sealing plate. The second baffle 240 is parallel to and spaced from the first baffle 230, so that a rear exhaust cavity 222 is formed between the first baffle 230 and the second baffle 240. The second baffle 240 is located in front of the first baffle 230. The lower end of the second baffle 240 is connected to the upper end surfaces of the two side cavities 130. The side air guide cavity 221 is connected to the rear exhaust cavity 222. The three baffles 250 connect the upper ends of the first baffle 230 and the second baffle 240. The side exhaust duct 260 is arranged between the upper end surface of the frame 100 and the third baffle 250 in the up and down direction, and the lower end of the side exhaust duct 260 is connected to the rear exhaust cavity 222, and the upper end of the side exhaust duct 260 is connected to the outside, forming a side air guide channel 220 that flows through the side air inlet 210, the side air guide cavity 221, the rear exhaust cavity 222 and the side exhaust duct 260 in sequence, and recovers polluted gases or molecular-level harmful substances from both sides of the table 110.

[0080] The side exhaust duct 260 includes a main pipe 261 and an air collecting pipe 262. The main pipe 261 is arranged near the top, and one end of the main pipe 261 is connected to the outside, the outlet end of the air collecting pipe 262 is connected to the lower end surface of the main pipe 261, and the inlet end is connected to the rear exhaust cavity 222. The size of the inlet end is smaller than that of the outlet end, so that the air collecting pipe 262 has the effect of collecting wind force, which is conducive to improving the wind force for recovering polluted gas or molecular-level harmful substances, thereby improving the recovery efficiency.

[0081] Since the polluted gas or molecular-level harmful substances that are not recovered by the side exhaust assembly 200 diffuse upward, and in the air flow group of the air supply assembly 400, this part of the polluted gas or molecular-level harmful substances mainly diffuses vertically upward and in the direction close to the rear cover of the frame 100, in order to recover this part of the polluted gas or molecular-level harmful substances, in this embodiment, the upper exhaust assembly 300 includes an upper baffle plate 330, and the upper baffle plate 330 is arranged to face the top of the table 110. The upper air inlet 310 is located on the upper baffle plate 330, and the upper baffle plate 330 is inclined so that the distance from the upper baffle plate 330 to the table 110 gradually decreases from the front to the back, so that the upper baffle plate 330 is inclined to face the operator, that is, facing the diffusion direction of the polluted gas or molecular-level harmful substances, which is beneficial to reduce resistance and increase the recovery ratio.

[0082] The upper exhaust assembly 300 further includes a connecting plate 340 and an upper exhaust duct 350. The connecting plate 340 is connected to the upper shielding plate 330, and the connecting plate 340 and the frame 100 are arranged to form a sealed upper exhaust cavity. Specifically, the connecting plate 340 and the upper top plate 150 of the frame 100 are arranged to form an upper exhaust cavity. One end of the upper exhaust duct 350 is connected to the upper exhaust cavity, and the other end is connected to the inside of the main pipe 261, so that the main pipe 261 is used to communicate with the outside, simplifying the structure of the upper exhaust assembly 300, which is conducive to reducing costs, and can form an upper air guide channel 320.

[0083] At the same time, an exhaust flange 270 is provided at the upper end of the main pipe 261, so that the main pipe 261 is sealed and connected to the upper top plate 150, and the upper end of the main pipe 261 can be connected to the outside. A power structure such as an impeller can be provided at the exhaust flange 270 to provide exhaust power for the upper exhaust assembly 300 and the side exhaust assembly 200.

[0084] In addition, air volume detection components 500 are respectively provided on the upper exhaust duct 350 and the main pipe 261. The air volume detection component 500 located on the upper exhaust duct 350 is configured to detect the air volume circulating in the upper exhaust assembly 300, and the air volume detection component 500 located on the main pipe 261 is configured to detect the air volume circulating in the side exhaust assembly 200. A first sealing plate is provided at one end of the upper exhaust duct 350 connected to the upper exhaust cavity, and a second sealing plate 263 is provided in the side exhaust assembly 200. The first sealing plate and the second sealing plate 263 adjust the amount of air circulating in the upper exhaust assembly 300 and the side exhaust assembly 200 according to the detection result of the air volume detection component 500, so that the purification position of the negative pressure experimental instrument can reasonably distribute the suction according to the specific air volume in the side air guide channel 220 and the upper air guide channel 320, which is beneficial to energy saving.

[0085] In order to realize the control of the air volume detection component 500 and the first sealing plate and the second sealing plate 263, the purification position of the negative pressure experimental instrument also includes an air monitoring component and a control device. The air monitoring component here can be a polluted gas and molecular-level harmful substance sensing sensor. The polluted gas and molecular-level harmful substances are monitored by the air monitoring component. According to their different concentrations, the control device adjusts the opening conditions of the first sealing plate and the second sealing plate 263 to adjust the air volume in the side air guide channel 220 and the upper air guide channel 320. At the same time, the air volume detection component 500 is used to detect the air volume condition, so that the exhaust volume of the side air guide duct and the upper air guide channel 320 matches the order of magnitude of the polluted gas and molecular-level harmful substances, that is, the working environment is matched in real time to ensure the safety of the operator's working environment.

[0086] A touchless switch is provided in the middle of the front of the right or left cabinet door 141 of the purification station of the negative pressure experimental instrument. The touchless switch is mainly used for the operator to start various electrical functions of the work station in a touchless manner before starting work. At the same time, a human-machine interface device is provided at the lower front of the right cabinet door 141, so that the operator can understand the concentration of polluted gas in the current area of ​​the work station, the order of magnitude of molecular-level harmful substances, the working status of the work station function, and the various electrical functions of the work station individually through the human-machine interface.

[0087] like Figure 2 to Figure 5As shown, the air supply assembly 400 includes an air supply flange 420, two air guide plates 430, two fourth baffles 440 and an air supply plate 450. The air supply flange 420 is arranged on the upper top plate 150 at the upper end of the frame 100, and the air supply flange 420 is connected to the outside through the upper top plate 150, and an impeller or a motor providing power for air supply can be arranged at the air supply flange 420. The two air guide plates 430 are connected to the end surface of the air supply flange 420 away from the upper top plate 150, and the distance between the two air guide plates 430 gradually increases in the direction away from the air supply flange 420, extending in a trumpet shape in the direction away from the air supply flange 420, completing the uniform diffusion of the air flow and playing the role of uniform flow. The two fourth baffles 440 are connected to the two ends of the two air guide plates 430 respectively, and are connected to the frame 100 and protrude forward from the upper end of the frame 100. An air supply channel 460 is formed between the air guide plate 430, the fourth baffle 440, the air supply plate 450 and the frame 100, and a plurality of air supply ports 410 are provided on the air supply plate 450. The gas from the air supply flange 420 passes through the air supply channel 460 and is blown out through the air supply ports 410. The air supply assembly 400 allows fresh air to enter the air supply channel 460 and blow to the operator below through the air supply ports 410 below the air supply channel 460, providing fresh air for the operator. In addition, the air flow direction from top to bottom can form a downward air curtain on the side of the open space of the frame 100 close to the operator and in front of the operator, further blocking the polluted gas and molecular-level harmful substances generated by the experimental instruments and equipment from diffusing to areas outside the workstation and affecting the breathing area of ​​the operator.

[0088] Specifically, there are multiple air supply ports 410 , which are helpful to increase the air supply volume. The multiple air supply ports 410 are arranged in an array on the air supply plate 450 .

[0089] Since an upper cabinet 140 is further disposed above the table 110 , the cabinet door 141 of the upper cabinet 140 has a guiding effect on the airflow from top to bottom, which is beneficial for the airflow to flow downward along the cabinet door 141 and improves the formation effect of the air curtain.

[0090] Furthermore, the air supply plate 450 is tilted downward so that the distance from the air supply plate 450 to the table 110 gradually decreases from the back to the front, so that the wind curtain is tilted at a certain angle from the top to the bottom and from the front to the back, thereby further reducing air flow diffusion and eddy currents, so as to form a wind curtain in front of the operator.

[0091] In addition, in order to prevent the cabinet door 141 from interfering with the inclined airflow direction, the cabinet door 141 is tilted from front to back along the direction from top to bottom, so that the tilt direction of the cabinet door 141 is consistent with the air supply direction of the air supply port 410.

[0092] As an alternative, Figure 6As shown, the negative pressure experimental instrument purification position also includes a front block 600 and a collection plate 700. A portion of the front block 600 is inserted into the side cavity 130, and the front block 600 is slidably connected to the side cavity 130 in the front and rear directions. The collection plate 700 is connected to the front edge of the table 110, and is funnel-shaped and sunken in front of the table 110. When the front block 600 slides forward, the collection plate 700 can recycle the garbage on the table 110. For example, when the garbage on the table 110 or the experimental device needs to be recycled, the operator only needs to pull out the front block 600 to expose the collection plate 700 below, and then sweep the garbage on the table 110 onto the collection plate 700. Since the collection plate 700 is funnel-shaped, the operator only needs to place a trash can under the collection plate 700, and the garbage on the collection plate 700 can be recycled into the trash can. The garbage recycling operation is convenient, which provides convenience for operation. Specifically, the front stopper 600 is a U-shaped structure, and the protruding positions at both ends of the U-shaped front stopper 600 are inserted into the two side cavities 130. The bottom of the front stopper 600 is used to block in front of the table 110. The front stopper 600 can also prevent the garbage on the table 110 from falling without human operation.

[0093] At the same time, the height of the front block 600 is consistent with the side cavity 130, that is, the height of the front block 600 is higher than the height of the table 110, so that after the experimental device is placed on the table 110, the working surface of the experimental device will not be too much higher than the front block 600 and the side cavity 130. In fact, the working surface of the experimental device is still lower than the height of the front block 600 and the side cavity 130. At this time, the front block 600 can provide support for the operator's arms or wrists, preventing the operator from being tired after a long time of experiment.

[0094] Furthermore, the front block 600 includes a main body 610 and a flip plate 620. The main body 610 is slidably connected to the side cavity 130, the flip plate 620 is located in front of the main body 610, and the flip plate 620 is rotatably connected to the main body 610. When the flip plate 620 rotates 90°, the flip plate 620 can provide support for the operator's arm. The flip plate 620 can extend the size of the front block 600 in the front-to-back direction. When the operator's arm is suspended in the air for a long time to conduct experiments and feels tired, rotating the flip plate 620 provides support for the arm, which is conducive to relieving fatigue. Of course, the operator can also flip the flip plate 620 out when starting to work.

[0095] Specifically, the flip plate 620 can be two strip plates connected at 90 degrees, and the two sides of the strip plates are connected by arc plates, and a limit groove is provided on the main body 610, and a hook is provided on the outer side of the arc plate. When the flip plate 620 is installed on the main body 610, the buckle is located in the limit groove, and the limit groove can not only fix the buckle so that the flip plate 620 is assembled on the main body 610, but also limit the flip angle of the flip plate 620 so that it is located at a position to support the operator's arm after flipping. In order to facilitate the operator to flip the flip plate 620, a handle 621 is also provided on the flip plate 620. The operator can open the flip plate 620 through the handle 621 and flip it outward 90 degrees to form an open state.

[0096] In addition, when the front stopper 600 is in a closed state, the front stopper 600 has a blocking effect on the front opening of the table 110. When the operator wants to clean the garbage on the table 110, in order to avoid being blocked by the front stopper 600, the operator can pull out the front stopper 600 or open the flip plate 620 to facilitate the operator to recycle the garbage on the table 110 when the front stopper 600 is in a closed state.

[0097] As an optional solution, a dirt outlet 131 is provided on the upper end surface of one of the side cavities 130. Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, the negative pressure experimental instrument purification position also includes a cover plate 800 and a sliding groove 900. The cover plate 800 can be opened or closed and arranged on the waste port 131, and the sliding groove 900 is arranged below the waste port 131. The sliding groove 900 is similar to a drawer structure, and the sliding groove 900 can be pulled out and arranged on the frame 100. The sliding groove 900 is configured to accommodate garbage thrown from the waste port 131. The hidden sliding groove 900 accommodates garbage structure, which is conducive to improving the overall aesthetics of the negative pressure experimental instrument purification position. In addition, a buckle 810 is also provided on the cover plate 800 to facilitate the operator to open or close the cover plate 800. Furthermore, the cover plate 800 can be slidably connected to the upper end surface of the side cavity 130. The operator only needs to slide the cover plate 800 at the buckle 810 to open or close the cover plate 800, which is simple to operate.

[0098] Furthermore, a garbage tray may be provided at the bottom of the sliding groove 900, so that the area for accommodating garbage is confined within the garbage tray, making it easier to clean.

[0099] Since the garbage thrown into the sliding groove 900 can still emit polluted gases and molecular-level harmful substances, the inner cavity of the sliding groove 900 is connected to the side air guide cavity 221, which is connected to the side air guide channel 220, so that the side exhaust assembly 200 can simultaneously recover the polluted gases and molecular-level harmful substances emitted from the sliding groove 900, and prevent these gases from diffusing into the environment.

[0100] As an optional solution, the negative pressure laboratory instrument purification station also includes a lighting component 1000, which is used to provide reasonable lighting for the operator when working and serve the experimental device. The negative pressure laboratory instrument purification station also includes a disinfection component, which can be an ultraviolet disinfection component 1100, which is used to disinfect and sterilize the experimental device on the table 110 after the operator finishes work.

[0101] In addition, the negative pressure laboratory instrument purification station also includes a bracket arranged on the frame 100, and a display 1200 is arranged on the bracket for displaying information of the medical laboratory management system, combining information technology with experiments. At the same time, the negative pressure laboratory instrument purification station also includes a socket 1300 arranged on the frame 100, and the socket 1300 is used to provide power to the experimental device, the negative pressure laboratory instrument purification station and other auxiliary electrical equipment. At the same time, the socket 1300 can be a multi-functional socket 1300, and the multi-functional socket 1300 can provide video, network, 485 and other interfaces, so that the experimental device can be conveniently connected to the medical laboratory management system.

[0102] To sum up, the appearance and functional structure design of the negative pressure experimental instrument purification station in this embodiment are more in line with the needs of modern laboratory work. From the conduct of experiments, to information processing, to garbage recycling, the product has a one-stop integrated function, and more details can provide better help for the operator.

[0103] For example, see Figure 8 In the embodiment, the negative pressure experimental instrument purification position is used for embedding experiments. An embedding experimental device 2000 is placed on the table 110. Here, the embedding experimental device 2000 can be an embedding machine. The surface of the embedding machine is provided with a paraffin infusion port 2001, a pollutant port cover plate 2002, and a pollutant dissipation port 2003. The front of the embedding machine is provided with a liquid paraffin recovery port 2004 and a heat dissipation hole 2005. The pollutant port cover plate 2002 stores specimens transferred from the dehydrator. The specimens are placed in the pollutant dissipation port 2003, and the polluted gas emitted is xylene. The embedding machine heats solid paraffin into liquid paraffin, and fixes the specimens with paraffin through the paraffin infusion port 2001. The excess paraffin will flow into the liquid paraffin recovery port 2004 on both sides of the embedding machine. After the experimental operation is completed, the operator needs to open the liquid paraffin recovery port 2004 to collect the paraffin inside, and at the same time, the solid paraffin on the surface of the embedding machine and the table 110 needs to be scraped off. When scraping off the paraffin, the operator can pull out the flip plate 620 or pull out the front stopper 600, so that the scraped solid paraffin falls on the collecting plate 700.

[0104] Of course, when the operator needs to conduct other laboratories, the embedding machine can be replaced with other experimental devices.

[0105] Note that the above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A negative pressure experimental instrument purification station, characterized in that: include: A frame (100), wherein a table top (110) is provided on the frame (100); A side air exhaust component (200), the side air exhaust component (200) comprising a side air inlet (210) and a side air guide channel (220), the side air inlet (210) being provided at least on one side in the left-right direction of the table top (110), and gas on the table top (110) can enter the side air guide channel (220) through the side air inlet (210) and be discharged through the side air guide channel (220); An upper air exhaust component (300), the upper air exhaust component (300) comprising an upper air inlet (310) and an upper air guiding channel (320), the upper air inlet (310) being located above the table top (110) and arranged facing the table top (110), and gas on the table top (110) can enter the upper air guiding channel (320) through the upper air inlet (310) and be discharged through the upper air guiding channel (320); An air supply component (400) is arranged above the frame (100), the air supply component (400) comprises an air supply port (410), and the air supply port (410) is located above the table top (110); The frame (100) comprises: A lower cabinet (120), the tabletop (110) being arranged on the lower cabinet (120); Two side cavities (130), the two side cavities (130) being respectively arranged on the left and right sides of the table top (110), the side air inlet (210) being arranged on the side of the side cavity (130) facing the table top (110), the inner cavity of the side cavity (130) being a side air guide cavity (221), and the side air guide cavity (221) being a part of the side air guide channel (220); The side exhaust assembly (200) comprises: A first baffle (230) is disposed in the frame (100) along a vertical direction; a second baffle (240) arranged in parallel with and spaced apart from the first baffle (230) to form a rear air exhaust cavity (222); the second baffle (240) is located in front of the first baffle (230); the lower end of the second baffle (240) is connected to the upper end surfaces of the two side cavities (130); the side air guide cavity (221) is in communication with the rear air exhaust cavity (222); a third baffle (250) connecting the upper ends of the first baffle (230) and the second baffle (240); A side exhaust duct (260) is arranged between the upper top plate (150) of the frame (100) and the third baffle (250) in the up-down direction, and the lower end of the side exhaust duct (260) is connected to the rear exhaust cavity (222), and the upper end of the side exhaust duct (260) is connected to the outside, forming the side air guide channel (220) that flows through the side air inlet (210), the side air guide cavity (221), the rear exhaust cavity (222) and the side exhaust duct (260) in sequence; The air supply assembly (400) comprises: An air supply flange (420) is arranged on the upper top plate (150) at the upper end of the frame (100), and the air supply flange (420) is connected to the outside through the upper top plate (150); Two air guide plates (430) are connected to the end surface of the air supply flange (420) facing away from the upper top plate (150), and the distance between the two air guide plates (430) gradually increases in the direction away from the air supply flange (420), extending in a trumpet shape in the direction away from the air supply flange (420); Two fourth baffles (440) are respectively connected to two ends of the two air guide plates (430) and are connected to the frame (100); An air supply plate (450) is protruding forward from the upper end of the frame (100), and an air supply channel (460) is formed between the air guide plate (430), the fourth baffle plate (440), the air supply plate (450) and the frame (100), and a plurality of air supply ports (410) are provided on the air supply plate (450), and gas from the air supply flange (420) passes through the air supply channel (460) and is blown out through the air supply ports (410); The air supply plate (450) is tilted downward so that the distance from the air supply plate (450) to the table top (110) gradually decreases in the direction from back to front; The frame (100) further comprises: An upper cabinet (140) is located above the tabletop (110); the air supply plate (450) is connected to the upper end of the upper cabinet (140); the upper cabinet (140) comprises a cabinet door (141) arranged at the front; and along a direction from top to bottom, the cabinet door (141) is arranged to be inclined from front to rear; The frame (100) includes side cavities (130) located on both sides, and the negative pressure experimental instrument purification station also includes: A front stopper (600), wherein a portion of the front stopper (600) is inserted into the side cavity (130), and the front stopper (600) is slidably connected to the side cavity (130) along the front-to-back direction; the height of the front stopper (600) is consistent with that of the side cavity (130); A collecting plate (700) is connected to the front edge of the table top (110) and is arranged to sink in front of the table top (110) in a funnel-like manner. When the front stopper (600) slides forward, the collecting plate (700) can collect the garbage on the table top (110); The upper end surface of the side cavity (130) is higher than the height of the table top (110) to form a sunken table top (110); The front stopper (600) comprises: A main body (610) is slidably connected to the side cavity (130); A flip plate (620) is located in front of the main body (610), and the flip plate (620) is rotatably connected to the main body (610). When the flip plate (620) rotates 90°, the flip plate (620) can provide support for the operator's arm; The frame (100) further comprises a side cavity (130), wherein an upper end surface of one of the side cavities (130) is provided with a dirt opening (131), and the negative pressure experimental instrument purification station further comprises: A cover plate (800) is disposed on the waste port (131) in an openable or closable manner; A sliding groove (900) is arranged below the waste opening (131), and the sliding groove (900) can be drawn out and arranged on the frame (100), and the sliding groove (900) is configured to accommodate garbage thrown in from the waste opening (131); The inner cavity of the side cavity (130) is a side air guiding cavity (221), and the inner cavity of the sliding groove (900) is in communication with the side air guiding cavity (221), so as to be in communication with the side air guiding channel (220).

2. The negative pressure experimental instrument purification station according to claim 1 is characterized in that: The side exhaust duct (260) comprises: A main pipe (261) is arranged near the top, and one end of the main pipe (261) is connected to the outside; An air collecting pipe (262), wherein the outlet end of the air collecting pipe (262) is connected to the lower end surface of the main pipe (261), the inlet end is communicated with the rear exhaust cavity (222), and the size of the inlet end is smaller than the size of the outlet end.

3. The negative pressure experimental instrument purification station according to claim 1 is characterized in that: The upper exhaust assembly (300) comprises: An upper shielding plate (330) is arranged facing the top of the table top (110); the upper air inlet (310) is located on the upper shielding plate (330); and the upper shielding plate (330) is arranged at an angle so that the distance from the upper shielding plate (330) to the table top (110) gradually decreases in a direction from front to rear.

4. The negative pressure experimental instrument purification station according to claim 3 is characterized in that: The upper exhaust assembly (300) further includes: A connecting plate (340) connected to the upper shielding plate (330), and the connecting plate (340) and the frame (100) are arranged to form a sealed upper exhaust cavity; An upper exhaust duct (350), the side exhaust assembly (200) comprises a main pipe (261) connected to the outside, one end of the upper exhaust duct (350) is connected to the upper exhaust cavity, and the other end is connected to the inside of the main pipe (261).

5. The negative pressure experimental instrument purification station according to claim 4 is characterized in that: The upper exhaust duct (350) and the main pipe (261) are respectively provided with air volume detection components (500); the air volume detection component (500) located on the upper exhaust duct (350) is configured to detect the air volume flowing through the upper exhaust assembly (300); the air volume detection component (500) located on the main pipe (261) is configured to detect the air volume flowing through the side exhaust assembly (200); a first sealing plate is provided at one end of the upper exhaust duct (350) connected to the upper exhaust cavity; a second sealing plate (263) is provided in the side exhaust assembly (200); the first sealing plate and the second sealing plate (263) adjust the air volume flowing through the upper exhaust assembly (300) and the side exhaust assembly (200) according to the detection result of the air volume detection component (500).

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