Laboratory ventilation and purification equipment

Abstract

The laboratory ventilation and purification equipment comprises a body, an operation opening, an operation table and a pipeline, the operation opening is formed in the front surface of the upper end of the body, the operation table is arranged on the inner bottom face of the operation opening, the front end of the operation table extends out of the operation opening, the pipeline is arranged on the upper surface of the body, and the pipeline is arranged on the upper surface of the body. And a recycling assembly is arranged in front of the upper end of the operation opening, springback devices are arranged on the two sides of the recycling assembly, and self-locking devices are arranged below the springback devices. Through cooperative use of the body, the operation port, the operation table, the pipeline, the recovery assembly, the recovery plate, the movable frame, explosion-proof glass, a handle, a rebounding device and a self-locking device, the problems that when an existing ventilation cabinet is used for closing and sealing experiment articles in the cabinet, an experimenter cannot conveniently adjust and close the cabinet by himself / herself; and the problem that closing is not firm is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ventilation and purification equipment, and particularly relates to a laboratory ventilation and purification equipment. Background Art

[0002] A laboratory is a place for scientific research and experiments, usually equipped with various experimental equipment, instruments and tools, as well as corresponding safety measures. The main purpose of a laboratory is to conduct various scientific research, teaching or technology development activities to promote human understanding of the natural world and technology. The safety management of a laboratory is very important, and safety operation procedures must be strictly followed to ensure the safety of experimental personnel and the environment. Laboratories usually have special air ventilation and purification equipment to ensure the safety of experimental personnel. Laboratory ventilation and purification equipment is a key facility to ensure the safety and cleanliness of the laboratory environment. Its main functions include air circulation and fresh air supply, pollutant removal, temperature and humidity control, etc. Usually, these equipment include fume hoods and universal exhaust hoods, etc. Among them, the fume hood is a commonly used ventilation and purification equipment in physical and chemical laboratories, mainly used to control, dilute and discharge the fumes, aerosols, particles and other toxic and harmful substances generated by experiments, and protect experimental personnel from the harm of harmful chemical substances. The fume hood is not only used for experimental operations, but also can be used to store harmful substances to provide additional safety and isolation.

[0003] The problems existing in the prior art are: when the existing fume hood closes and seals the experimental items in the cabinet, it is inconvenient for the experimenter to adjust the closing by himself, and the closing is not firm. Content of the Utility Model

[0004] Aiming at the problems existing in the prior art, the utility model provides a laboratory ventilation and purification equipment, which has the advantages that the experimenter can pull and close the equipment by himself and fasten the closed equipment, and solves the problems that when the existing fume hood closes and seals the experimental items in the cabinet, it is inconvenient for the experimenter to adjust the closing by himself and the closing is not firm.

[0005] The utility model is realized as follows: a laboratory ventilation and purification equipment, including a main body, an operation opening, an operation table and a pipeline. The operation opening is arranged on the front surface of the upper end of the main body. The operation table is arranged on the inner bottom surface of the operation opening. The front end of the operation table extends out of the operation opening. The pipeline is arranged on the upper surface of the main body and is communicated with the main body. A recovery component is arranged in front of the upper end of the operation opening. Rebound devices are arranged on both sides of the recovery component. A self-locking device is arranged below the rebound devices.

[0006] As a preferred embodiment of the present utility model, the recovery assembly includes a recovery plate, a movable frame, explosion-proof glass, and a handle. The recovery plate is disposed in front of the upper end of the operation port and is fixedly connected to the upper end of the main body at the top. The movable frame is disposed in front of the upper end of the operation port, and the left and right sides of the front surface and the left and right sides of the rear surface are slidably connected to the two sides of the rear surface of the recovery plate and the two sides of the front surface of the main body. The explosion-proof glass is fixedly connected inside the movable frame, and the handle is fixedly connected to the bottom end of the lower surface of the movable frame. By providing the recovery assembly, the function of sealing the fume hood is achieved, and the gas or harmful substances generated during the experiment can be sealed in the fume hood, avoiding the pollution of the laboratory.

[0007] As a preferred embodiment of the present utility model, the number of the spring-back devices is two, which are respectively disposed on the left and right sides of the movable frame. The spring-back device includes a sliding rod, a sliding block, and a fourth spring. The upper and lower ends of the sliding rod are respectively fixedly connected to the upper end of the main body and the upper surface of the operating table. The sliding block is sleeved on the surface of the sliding rod and is slidably connected to the sliding rod. The fourth spring is sleeved on the surface of the sliding rod, and the upper and lower ends are respectively fixedly connected to the upper end of the main body and the upper surface of the sliding block. By providing the spring-back device, the function of moving the movable frame is achieved, and the effect of opening and closing the seal of the recovery assembly is obtained.

[0008] As a preferred embodiment of the present utility model, the number of the self-locking devices is two, which are respectively disposed directly below the sliding blocks. The self-locking device includes a box body, a clamping component, a tightening component, an opening component, and a self-locking head. The box body is disposed directly below the sliding block and the rear surface is fixedly connected to the front surface of the main body. The number of the clamping components is two, which are respectively disposed on the left and right sides inside the box body. The number of the tightening components is two, which are respectively disposed below the clamping components. The opening component is disposed in front of the tightening component. The self-locking head is fixedly connected to the lower surface of the sliding block. By providing the self-locking device, the function of clamping the self-locking head is achieved, and the effect of clamping and closing the lower movable frame during sealing is obtained, avoiding accidental opening during the experiment.

[0009] As a preferred embodiment of the present utility model, the clamping component includes a clamping head, a first moving rod, and a first spring. The first moving rod is disposed inside the box body and one end extends out of the box body. The first moving rod is slidably connected to the box body. The clamping head is disposed inside the box body and is fixedly connected to one end of the first moving rod. The first spring is sleeved on the surface of the first moving rod, and the left and right ends are respectively fixedly connected to the inner surface of the box body and the right surface of the clamping head. By providing the clamping component, the function of clamping the clamping head is achieved, and the effect of locking the clamping head and maintaining the closed state of the movable frame is obtained.

[0010] As a preferred embodiment of the present utility model, the tightening component includes a pressing head, a second moving rod, and a second spring. The pressing head is arranged below the clamping head and is fixedly connected to the lower end of the clamping head at the upper end. The second moving rod is arranged at the right end of the pressing head, with one end fixedly connected to the right surface of the pressing head and the other end extending out of the box body. The second moving rod is slidably connected to the box body. The second spring is sleeved on the surface of the second moving rod, and the left and right ends are respectively fixedly connected to the right surface of the pressing head and the inside of the box body. By setting the tightening component, it has the function of pulling the clamping component.

[0011] As a preferred embodiment of the present utility model, the opening component includes a third moving rod, a pressing block, a third spring, a button, and a sleeve. The third moving rod is arranged inside the box body, and one end extends out of the front surface of the box body. The pressing block is arranged in front of the pressing head, and the front surface is fixedly connected to one end of the third moving rod. The button is fixedly connected to the end of the third moving rod extending out of the box body. The third spring is sleeved on the surface of the third moving rod, and the front and rear ends are respectively fixedly connected to the front surface of the box body and the rear surface of the button. The sleeve is sleeved on the surface of the third spring and the rear end is fixedly connected to the front surface of the box body. By setting the opening component, it has the function of squeezing the pressing head to drive the clamping component to open.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By the combined use of the body, operation port, operation table, pipeline, recovery component, recovery plate, moving frame, explosion-proof glass, handle, spring-back device, sliding block, sliding rod, fourth spring, self-locking device, box body, clamping component, clamping head, first moving rod, first spring, tightening component, pressing head, second moving rod, second spring, opening component, third moving rod, pressing block, third spring, button, sleeve, and self-locking head in the present utility model, it solves the problems that when the existing fume hood closes and seals the experimental items in the cabinet, it is inconvenient for the experimenter to adjust the closing by himself / herself and the closing is not firm.

[0014] 2. Through the self-locking device in the present utility model, the self-locking head is clamped, which has the effect of clamping and closing the lower moving frame during sealing to prevent it from being accidentally opened during the experiment. Description of the Drawings

[0015] Figure 1 is the first perspective three-dimensional structure schematic diagram of the fume hood provided by the embodiment of the present utility model;

[0016] Figure 2 is the second perspective three-dimensional structure schematic diagram of the fume hood provided by the embodiment of the present utility model;

[0017] Figure 3It is a schematic three - dimensional structure diagram of a self - locking device for a fume hood provided by an embodiment of the present utility model;

[0018] Figure 4 is provided by an embodiment of the present utility model Figure 3 The partial enlarged schematic diagram at position A in

[0019] In the figure: 1, the main body; 2, the operation port; 3, the operation table; 4, the pipeline; 5, the recovery component; 51, the recovery plate; 52, the moving frame; 53, the explosion - proof glass; 54, the handle; 6, the spring - back device; 61, the sliding rod; 62, the sliding block; 63, spring four; 7, the self - locking device; 71, the box body; 72, the clamping component; 721, the clamping head; 722, the first moving rod; 723, spring one; 73, the tightening component; 731, the pressing head; 732, the second moving rod; 733, spring two; 74, the opening component; 741, the third moving rod; 742, the pressing block; 743, spring three; 744, the button; 745, the sleeve; 75, the self - locking head. Specific embodiments

[0020] To further understand the content, features and effects of the present utility model, the following embodiments are cited and described in detail in conjunction with the accompanying drawings.

[0021] The structure of the present utility model will be described in detail below with reference to the accompanying drawings.

[0022] As Figures 1 to 4 shown, a laboratory ventilation and purification device provided by an embodiment of the present utility model includes a main body 1, an operation port 2, an operation table 3 and a pipeline 4. The operation port 2 is opened on the front surface of the upper end of the main body 1. The operation table 3 is arranged on the inner bottom surface of the operation port 2. The front end of the operation table 3 extends out of the operation port 2. The pipeline 4 is arranged on the upper surface of the main body 1 and is in communication with the main body 1. A recovery component 5 is arranged in front of the upper end of the operation port 2. Rebound devices 6 are arranged on both sides of the recovery component 5. A self - locking device 7 is arranged below the rebound device 6.

[0023] Referring to Figure 1 and Figure 2 , the recovery component 5 includes a recovery plate 51, a moving frame 52, an explosion - proof glass 53 and a handle 54. The recovery plate 51 is arranged in front of the upper end of the operation port 2 and its top is fixedly connected to the upper end of the main body 1. The moving frame 52 is arranged in front of the upper end of the operation port 2, and the left and right sides of the front surface and the left and right sides of the rear surface are slidably connected to the two sides of the rear surface of the recovery plate 51 and the two sides of the front surface of the main body 1. The explosion - proof glass 53 is fixedly connected inside the moving frame 52. The handle 54 is fixedly connected to the bottom end of the lower surface of the moving frame 52.

[0024] Adopting the above - mentioned scheme: By setting the recovery component 5, it plays a role in sealing the fume hood, and has the effect of sealing the gases or harmful substances generated during the experiment in the fume hood, avoiding the pollution of the laboratory.

[0025] refer to Figure 1 and Figure 2 There are two rebound devices 6, which are respectively arranged on the left and right sides of the moving frame 52. The rebound device 6 includes a sliding rod 61, a sliding block 62 and a spring four 63. The upper end and the lower end of the sliding rod 61 are respectively fixedly connected to the upper end of the main body 1 and the upper surface of the operating table 3. The sliding block 62 is sleeved on the surface of the sliding rod 61 and is slidably connected to the sliding rod 61. The spring four 63 is sleeved on the surface of the sliding rod 61, and the upper end and the lower end are respectively fixedly connected to the upper end of the main body 1 and the upper surface of the sliding block 62.

[0026] The above solution is adopted: by providing the rebound device 6, the movable frame 52 is moved, which has the effect of opening and closing the sealing of the recovery component 5.

[0027] refer to Figure 3 and Figure 4 There are two self-locking devices 7, which are respectively arranged directly below the sliding block 62. The self-locking device 7 includes a box body 71, a clamping component 72, a tensioning component 73, an opening component 74 and a self-locking head 75. The box body 71 is arranged directly below the sliding block 62, and the rear surface is fixedly connected to the front surface of the body 1. There are two clamping components 72, which are respectively arranged on the left and right sides of the box body 71. There are two tensioning components 73, which are respectively arranged below the clamping components 72. The opening component 74 is arranged in front of the tensioning component 73. The self-locking head 75 is fixedly connected to the lower surface of the sliding block 62.

[0028] The above solution is adopted: by providing the self-locking device 7, the self-locking head 75 is clamped, which has the effect of clamping and closing the lowered and closed moving frame 52 during sealing, thereby preventing it from being accidentally opened during the experiment.

[0029] refer to Figure 4 The clamping assembly 72 includes a clamping head 721, a moving rod 722 and a spring 723. The moving rod 722 is arranged in the box body 71, and one end extends out of the box body 71. The moving rod 722 is slidably connected to the box body 71. The clamping head 721 is arranged in the box body 71 and is fixedly connected to one end of the moving rod 722. The spring 723 is sleeved on the surface of the moving rod 722, and the left and right ends are respectively fixedly connected to the inner surface of the box body 71 and the right surface of the clamping head 721.

[0030] The above solution is adopted: by providing the clamping assembly 72 to clamp the clamping head 721, which has the effect of locking the clamping head 721 and keeping the moving frame 52 in the closed state.

[0031] refer to Figure 4, the tightening and loosening assembly 73 includes a pressing head 731, a second moving rod 732 and a second spring 733. The pressing head 731 is arranged below the chuck 721, and the upper end is fixedly connected to the lower end of the chuck 721. The second moving rod 732 is arranged at the right end of the pressing head 731, and one end is fixedly connected to the right surface of the pressing head 731, and the other end extends out of the box body 71. The second moving rod 732 is slidably connected to the box body 71. The second spring 733 is sleeved on the surface of the second moving rod 732, and the left and right ends are respectively fixedly connected to the right surface of the pressing head 731 and the inside of the box body 71.

[0032] Adopting the above solution: By setting the tightening and loosening assembly 73, it has the function of pulling the clamping assembly 72.

[0033] Reference Figure 4 , the opening assembly 74 includes a third moving rod 741, a pressing block 742, a third spring 743, a button 744 and a sleeve 745. The third moving rod 741 is arranged inside the box body 71, and one end extends out of the front surface of the box body 71. The pressing block 742 is arranged in front of the pressing head 731, and the front surface is fixedly connected to one end of the third moving rod 741. The button 744 is fixedly connected to the end of the third moving rod 741 that extends out of the box body 71. The third spring 743 is sleeved on the surface of the third moving rod 741, and the front and rear ends are respectively fixedly connected to the front surface of the box body 71 and the rear surface of the button 744. The sleeve 745 is sleeved on the surface of the third spring 743 and the rear end is fixedly connected to the front surface of the box body 71.

[0034] Adopting the above solution: By setting the opening assembly 74, it has the function of squeezing the pressing head 731 to drive the clamping assembly 72 to open.

[0035] The working principle of the present utility model:

[0036] When it is necessary to seal the fume hood and close the movable frame 52, by pulling the handle 54 at the lower end of the movable frame 52 downward, the movable frame 52 slides downward between the main body 1 and the recovery plate 51, and at the same time drives the sliding block 62 to slide downward on the surface of the sliding rod 61. When sliding downward, the fourth spring 63 is stretched. When the movable frame 52 is pulled to the surface of the operating table 3, the self-locking head 75 is inserted into the box body 71, and the clamping head 721 is squeezed to both sides. At the same time, the clamping head 721 drives the pressure head 731 to be squeezed to both sides. When the clamping head 721 and the pressure head 731 are squeezed to both sides, the first spring 723 and the second spring 733 are compressed, and the first moving rod 722 and the third moving rod 741 slide on both sides of the box body 71. When the self-locking head 75 is inserted to a certain depth and no longer squeezes the clamping head 721, the first spring 723 and the second spring 733 rebound and drive the first moving rod 722 and the second moving rod 732 to push inward the box body 71, so as to clamp the self-locking head 75 to close the movable frame 52. When it is necessary to open the movable frame 52, by pressing the button 744, the button 744 squeezes the third spring 743 in the sleeve 745. At the same time, the third moving rod 741 drives its pressing block 742 to move inward the box body 71, squeezes the pressure head 731 to both sides. At the same time, the pressure head 731 drives the clamping head 721 to be squeezed to both sides to compress the second spring 733 and the first spring 723, so as to open the clamping head 721. After the clamping head 721 is opened, the fourth spring 63 pulls the sliding block 62 back along the sliding rod 61, so as to open the movable frame 52.

[0037] To sum up: The laboratory ventilation and purification equipment solves the problems that when the existing fume hood is used to close and seal the experimental items in the cabinet, it is inconvenient for the experimenter to adjust and close by himself, and the closure is not firm. This is achieved by the coordinated use of the main body 1, the operation port 2, the operating table 3, the pipeline 4, the recovery component 5, the recovery plate 51, the movable frame 52, the explosion-proof glass 53, the handle 54, the spring-back device 6, the sliding block 62, the sliding rod 62, the fourth spring 63, the self-locking device 7, the box body 71, the clamping component 72, the clamping head 721, the first moving rod 722, the first spring 723, the tightening and loosening component 73, the pressure head 731, the second moving rod 732, the second spring 733, the opening component 74, the third moving rod 741, the pressing block 742, the third spring 743, the button 744, the sleeve 745 and the self-locking head 75.

[0038] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laboratory ventilation and purification device, comprising a body (1), an operation port (2), an operation table (3) and a pipeline (4), wherein the operation port (2) is provided on the front surface of the upper end of the body (1), the operation table (3) is arranged on the inner bottom surface of the operation port (2), the front end of the operation table (3) extends out of the operation port (2), the pipeline (4) is arranged on the upper surface of the body (1) and is interconnected with the body (1), characterized in that: A recovery component (5) is arranged in front of the upper end of the operation port (2), rebound devices (6) are arranged on both sides of the recovery component (5), and a self-locking device (7) is arranged below the rebound device (6).

2. A laboratory ventilation and purification equipment as claimed in claim 1, characterized in that: The recovery component (5) comprises a recovery plate (51), a movable frame (52), an explosion-proof glass (53) and a handle (54); the recovery plate (51) is arranged in front of the upper end of the operation port (2), and the top end is fixedly connected to the upper end of the body (1); the movable frame (52) is arranged in front of the upper end of the operation port (2), and the left and right sides of the front surface and the left and right sides of the rear surface are slidably connected to the two sides of the rear surface of the recovery plate (51) and the two sides of the front surface of the body (1); the explosion-proof glass (53) is fixedly connected in the movable frame (52); and the handle (54) is fixedly connected to the bottom end of the lower surface of the movable frame (52).

3. A laboratory ventilation and purification equipment as claimed in claim 2, characterized in that: The number of the rebound devices (6) is two, and they are respectively arranged on the left and right sides of the movable frame (52). The rebound device (6) comprises a sliding rod (61), a sliding block (62) and a spring four (63). The upper end and the lower end of the sliding rod (61) are respectively fixedly connected to the upper end of the body (1) and the upper surface of the operating table (3). The sliding block (62) is sleeved on the surface of the sliding rod (61) and is slidably connected to the sliding rod (61). The spring four (63) is sleeved on the surface of the sliding rod (61), and the upper end and the lower end are respectively fixedly connected to the upper end of the body (1) and the upper surface of the sliding block (62).

4. A laboratory ventilation and purification equipment as claimed in claim 3, characterized in that: The number of the self-locking devices (7) is two, and they are respectively arranged directly below the sliding block (62). The self-locking device (7) comprises a box body (71), a clamping assembly (72), a tensioning assembly (73), an opening assembly (74) and a self-locking head (75). The box body (71) is arranged directly below the sliding block (62), and the rear surface is fixedly connected to the front surface of the main body (1). The number of the clamping assemblies (72) is two, and they are respectively arranged on the left and right sides inside the box body (71). The number of the tensioning assemblies (73) is two, and they are respectively arranged below the clamping assemblies (72). The opening assembly (74) is arranged in front of the tensioning assembly (73). The self-locking head (75) is fixedly connected to the lower surface of the sliding block (62).

5. A laboratory ventilation and purification equipment as claimed in claim 4, characterized in that: The clamping assembly (72) comprises a clamping head (721), a moving rod (722) and a spring (723); the moving rod (722) is arranged in a box body (71) and one end of the moving rod extends out of the box body (71); the moving rod (722) is slidably connected to the box body (71); the clamping head (721) is arranged in the box body (71) and is fixedly connected to one end of the moving rod (722); the spring (723) is sleeved on the surface of the moving rod (722) and its left and right ends are respectively fixedly connected to the inner surface of the box body (71) and the right surface of the clamping head (721).

6. A laboratory ventilation and purification equipment as claimed in claim 5, characterized in that: The tensioning assembly (73) comprises a pressure head (731), a second moving rod (732) and a second spring (733); the pressure head (731) is arranged below the clamping head (721), and the upper end is fixedly connected to the lower end of the clamping head (721); the second moving rod (732) is arranged at the right end of the pressure head (731), and one end is fixedly connected to the right surface of the pressure head (731), and the other end extends out of the box body (71); the second moving rod (732) is slidably connected to the box body (71); the second spring (733) is sleeved on the surface of the second moving rod (732), and the left and right ends are respectively fixedly connected to the right surface of the pressure head (731) and the inside of the box body (71).

7. A laboratory ventilation and purification equipment as claimed in claim 6, characterized in that: The opening assembly (74) comprises a moving rod (741), a pressure block (742), a spring (743), a button (744) and a sleeve (745). The moving rod (741) is arranged in the box body (71), and one end thereof extends out of the front surface of the box body (71). The pressure block (742) is arranged in front of the pressure head (731), and the front surface thereof is fixedly connected to one end of the moving rod (741). The button (744) is fixedly connected to one end of the moving rod (741) extending out of the box body (71). The spring (743) is sleeved on the surface of the moving rod (741), and the front and rear ends thereof are respectively fixedly connected to the front surface of the box body (71) and the rear surface of the button (744). The sleeve (745) is sleeved on the surface of the spring (743), and the rear end thereof is fixedly connected to the front surface of the box body (71).

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