Laboratory ventilation cabinet

Abstract

The utility model discloses a laboratory fume cupboard, and particularly relates to the technical field of fume cupboards, the laboratory fume cupboard comprises a fume cupboard body, the top end of the fume cupboard body is provided with a ventilation assembly, the fume cupboard body is internally provided with a telescopic mounting rack, the bottom of the mounting rack is provided with a mounting plate, and one side of the mounting plate is provided with a cleaning assembly; the dismounting assembly is used for quickly dismounting the mounting plate along the mounting frame, and the dismounting assembly comprises a connecting plate fixed to the top end of the mounting plate and a connecting groove formed in the top end of the mounting frame and allowing the connecting plate to be inserted therein; through the arrangement of the dismounting assembly, the cleaning assembly can be quickly dismounted, so that the cleaning assembly can be quickly replaced, the replacement efficiency of the cleaning assembly is greatly improved, and the problem that an operator needs to place the mounting columns in the mounting holes in sequence and take out the mounting columns in the mounting holes in the prior art is solved; the waste liquid adsorption effect of the cleaning assembly is effectively guaranteed, and the experiment efficiency of the ventilation cabinet is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fume hoods, in particular to laboratory fume hoods. Background Art

[0002] The most important function of a fume hood is the exhaust function. Therefore, fume hoods are generally installed in chemical laboratories. Fume hoods can prevent various harmful gases, odors, moisture, and flammable, explosive, and corrosive substances generated during experimental operations from spreading outside the laboratory, thereby ensuring safety during the experiment.

[0003] In a Chinese patent with publication number CN218610939U, a laboratory fume hood is disclosed, in which a mounting frame is installed through mounting columns and mounting holes, so that a cleaning component fits against the inner wall of the fume hood body to perform a waste liquid scraping operation, and then the waste liquid is adsorbed by the cleaning layer, and then the cleaning layer can be replaced to wipe the inner wall of the fume hood body, thereby realizing a reciprocating cleaning operation; however, in actual use of the above-mentioned fume hood, the waste liquid is generally adsorbed by the cleaning layer, and then the cleaning layer is disassembled and replaced. However, when replacing the cleaning layer, it is difficult to quickly disassemble the cleaning layer, so that the operator needs to remove the mounting columns from the mounting holes one by one, resulting in low replacement efficiency of the cleaning layer, affecting the adsorption effect of the cleaning layer on the waste liquid, and reducing the experimental efficiency of the fume hood. Utility Model Content

[0004] The purpose of the utility model is to provide a laboratory fume hood, which can achieve the effect of quick disassembly of the cleaning component through the setting of the disassembly component, thereby realizing the quick replacement of the cleaning component, greatly improving the replacement efficiency of the cleaning component, and solving the problem that the existing operator needs to remove the installation columns from the installation holes in turn, effectively ensuring the adsorption effect of the cleaning component on the waste liquid, improving the experimental efficiency of the fume hood, so as to solve the above-mentioned deficiencies in the technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions: a laboratory fume hood, comprising:

[0006] A fume hood body, a ventilation assembly is installed on the top of the fume hood body, a retractable mounting frame is installed in the fume hood body, a mounting plate is installed at the bottom of the mounting frame, and a cleaning assembly is installed on one side of the mounting plate;

[0007] A disassembly component is used to quickly disassemble the mounting plate along the mounting frame, the disassembly component includes a connecting plate fixed on the top of the mounting plate and a connecting groove opened on the top of the mounting frame for the connecting plate to be inserted, a clamping groove is opened in the connecting groove, two symmetrically distributed clamping columns are installed on the connecting plate, and the two clamping columns are clamped and fixed with the clamping grooves, and a kneading component for pushing the two clamping columns to move is provided on the connecting plate; by setting the clamping columns and the length of the connecting plate being greater than the length of the two clamping columns, interference is avoided when the two clamping columns move relative to each other along the connecting plate, so that the two clamping columns are synchronously disengaged from the clamping grooves.

[0008] Preferably, each of the kneading components includes a slide groove opened at the top of the connecting plate and a stabilizing rod fixed to one end of the clamping column, and the stabilizing rod is slidably connected to the slide groove, and one side of the stabilizing rod is provided with an elastic component for driving the clamping column to reset.

[0009] Preferably, the elastic component includes a movable frame fixed on one side of the stabilizing rod and a stabilizing frame sleeved on the outside of the clamping column, and the movable frame is sleeved on the outside of the clamping column, the outside of the stabilizing frame is fixed in the slide groove, and a spring is fixed between the stabilizing frame and the movable frame; through the setting of the spring, the spring is tightened and reset, thereby giving the stabilizing rod a thrust toward the side of the clamping column, so that the clamping column can be quickly inserted into the clamping groove.

[0010] Preferably, a connecting component is provided in the slide groove to connect it with the stabilizing rod, and the connecting component includes a connecting seat fixed in the slide groove and a connecting cavity opened on one side of the stabilizing rod, and the connecting seat and the connecting cavity are clamped and fixed, and the connecting seat is located above the stabilizing frame.

[0011] Preferably, a guide bar is also fixed on one side of the stabilizing bar, and a guide groove corresponding to the guide bar is opened in the slide groove, and the guide groove and the guide bar are slidably connected; through the setting of the guide bar, the stabilizing bar can be guided and stably moved along the guide groove, so that the stabilizing bar can only move back and forth along the slide groove and cannot disengage, thereby enhancing the stability of the movement of the clamping column.

[0012] Preferably, a stabilizing groove is further provided on one side of the connecting seat, a stabilizing block corresponding to the stabilizing groove is fixed in the connecting cavity, and the stabilizing block is slidably connected to the stabilizing groove; the provision of the stabilizing block is conducive to enhancing the stability between the connecting seat and the connecting cavity, and can prevent the connecting seat and the connecting cavity from being separated at will.

[0013] Preferably, the top end of the stabilizing rod extends to the outside of the slide groove and is fixed with a squeezing handle, and the outside of the squeezing handle is sleeved with an anti-slip ring.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. Through the setting of the disassembly component, the cleaning component can be quickly disassembled, so as to realize the rapid replacement of the cleaning component, which greatly improves the replacement efficiency of the cleaning component and solves the problem that the existing operator needs to take out the installation column in the installation hole in turn, effectively ensuring the adsorption effect of the cleaning component on the waste liquid and improving the experimental efficiency of the fume hood;

[0016] 2. By setting the kneading component, a stable connection between the clamping column and the clamping groove can be achieved, thereby ensuring that the clamping column is fixed at the required position, effectively improving the stability of the clamping column, and allowing the clamping column to maintain normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the utility model when the clamping column and the clamping groove are installed;

[0020] Figure 3 This is a schematic diagram of the structure of the clamping column and the connecting plate of the utility model when they are contracted;

[0021] Figure 4 For this utility model Figure 3 Enlarged view of point A in .

[0022] Description of reference numerals:

[0023] 1. Fume hood body; 11. Ventilation assembly; 12. Mounting frame; 13. Cleaning assembly; 14. Mounting plate; 2. Disassembly assembly; 21. Connecting plate; 22. Connecting groove; 23. Snap-in groove; 24. Snap-in column; 3. Kneading assembly; 31. Slide groove; 32. Stabilizing rod; 33. Moving frame; 34. Stabilizing frame; 35. Spring; 4. Connecting assembly; 41. Connecting seat; 42. Connecting cavity; 43. Guide groove; 44. Guide strip. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1The laboratory fume hood shown includes:

[0026] A fume hood body 1, a ventilation assembly 11 is installed on the top of the fume hood body 1, a retractable mounting frame 12 is installed in the fume hood body 1, a mounting plate 14 is installed on the bottom of the mounting frame 12, and a cleaning assembly 13 is installed on one side of the mounting plate 14; the structure and principle of the cleaning assembly 13, the ventilation assembly 11 and the mounting frame 12 are prior art, and specific reference is made to the comparative document (publication number CN218610939U, and the patent name is a laboratory fume hood), which will not be repeated here.

[0027] As can be seen from the above, when in use, the operator first conducts a chemical experiment inside the fume hood cabinet 1, and the ventilation component 11 adsorbs the harmful gases generated in the chemical experiment, thereby ensuring the safety inside the fume hood cabinet 1. Subsequently, when the inner wall of the fume hood cabinet 1 is contaminated with waste liquid, the mounting frame 12 drives the mounting plate 14 to move downward along the mounting frame 12. As the mounting plate 14 continues to move, the cleaning component 13 is driven to move synchronously along the mounting frame 12. Then the cleaning component 13 adsorbs and cleans the waste liquid adsorbed inside the mounting frame 12, which is convenient for the next use of the fume hood cabinet 1 and improves the service life of the fume hood cabinet 1.

[0028] refer to Figure 1-Figure 3 As shown, the disassembly component 2 is used to quickly disassemble the mounting plate 14 along the mounting frame 12. The disassembly component 2 includes a connecting plate 21 fixed on the top of the mounting plate 14 and a connecting groove 22 opened at the top of the mounting frame 12 and for the connecting plate 21 to be inserted. A clamping groove 23 is opened in the connecting groove 22. Two symmetrically distributed clamping columns 24 are installed on the connecting plate 21, and the two clamping columns 24 are clamped and fixed with the clamping groove 23. A kneading component 3 for pushing the two clamping columns 24 to move is provided on the connecting plate 21; each kneading component 3 includes a slide groove 31 opened at the top of the connecting plate 21 and a stabilizing rod 32 fixed at one end of the clamping column 24, and the stabilizing rod 32 is slidably connected with the slide groove 31, and one side of the stabilizing rod 32 is provided with an elastic component for driving the clamping column 24 to reset;

[0029] The elastic component includes a moving frame 33 fixed on one side of the stabilizing rod 32 and a stabilizing frame 34 sleeved on the outside of the clamping column 24, and the moving frame 33 is sleeved on the outside of the clamping column 24, and the outside of the stabilizing frame 34 is fixed in the slide groove 31, and a spring 35 is fixed between the stabilizing frame 34 and the moving frame 33; the top end of the stabilizing rod 32 extends to the outside of the slide groove 31 and is also fixed with a squeezing handle, and the outside of the squeezing handle is sleeved with an anti-slip ring.

[0030] When in use, the cleaning component 13 first absorbs and cleans the waste liquid inside the mounting frame 12, and then squeezes the two squeezing handles to make the two squeezing handles move relative to each other, and then pulls the two stabilizing rods 32 to move relative to each other along the two slide grooves 31. However, the two stabilizing rods 32 drive the two moving frames 33 to move synchronously during the movement. However, the spring 35 is stretched between the moving frame 33 and the stabilizing frame 34, and then the two clamping posts 24 move synchronously along the two slide grooves 31 under the relative movement of the two stabilizing rods 32. Subsequently, the two clamping posts 24 are disengaged from the clamping grooves 23, so that the connecting plate 21 can be quickly taken out along the connecting groove 22, and the cleaning component 13 can be disassembled and replaced, thereby achieving the effect of quick disassembly of the cleaning component 13, improving the replacement efficiency of the cleaning component 13, and solving the problem that the existing operator needs to take out the mounting posts in the mounting holes in turn, thereby effectively improving the experimental efficiency of the fume hood cabinet 1.

[0031] In addition, refer to Figure 1-Figure 4 As shown, a connecting component 4 is provided in the slide groove 31 to connect it with the stabilizing rod 32, and the connecting component 4 includes a connecting seat 41 fixed in the slide groove 31 and a connecting cavity 42 opened on one side of the stabilizing rod 32, and the connecting seat 41 and the connecting cavity 42 are clamped and fixed, and the connecting seat 41 is located above the stabilizing frame 34; a guide bar 44 is also fixed on one side of the stabilizing rod 32, a guide groove 43 corresponding to the guide bar 44 is opened in the slide groove 31, and the guide groove 43 and the guide bar 44 are slidably connected; a stabilizing groove is also opened on one side of the connecting seat 41, a stabilizing block corresponding to the stabilizing groove is fixed in the connecting cavity 42, and the stabilizing block and the stabilizing groove are slidably connected.

[0032] Through the above technical solution:

[0033] When the stabilizing rod 32 moves along the inside of the slide groove 31, the stabilizing rod 32 moves the guide strip 44 installed on the outside along the guide groove 43, which is used to stably guide the stabilizing rod 32 to move in the slide groove 31. During the movement of the stabilizing rod 32, the connecting cavity 42 is driven to approach the connecting seat 41, so that the stabilizing block slides between the stabilizing groove, and the connecting seat 41 moves deep into the connecting cavity 42. Then the connecting cavity 42 and the connecting seat 41 are clamped and fixed, which can stably connect the clamping column 24 and the clamping groove 23, and can ensure that the clamping column 24 is fixed in the required position, thereby effectively improving the stability of the clamping column 24, so that the clamping column 24 can maintain normal use.

[0034] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. Laboratory fume hood, characterized in that, include: A fume hood body (1), wherein a ventilation assembly (11) is installed at the top of the fume hood body (1), a retractable mounting frame (12) is installed inside the fume hood body (1), a mounting plate (14) is installed at the bottom of the mounting frame (12), and a cleaning assembly (13) is installed on one side of the mounting plate (14); A disassembly assembly (2) is used for quickly disassembling a mounting plate (14) along a mounting frame (12). The disassembly assembly (2) comprises a connecting plate (21) fixed to the top of the mounting plate (14) and a connecting groove (22) provided at the top of the mounting frame (12) and for the connecting plate (21) to be inserted. A clamping groove (23) is provided in the connecting groove (22). Two symmetrically distributed clamping columns (24) are installed on the connecting plate (21), and the two clamping columns (24) are clamped and fixed to the clamping grooves (23). A kneading assembly (3) is provided on the connecting plate (21) for pushing the two clamping columns (24) to move.

2. The laboratory fume hood according to claim 1, characterized in that: Each of the kneading components (3) comprises a slide groove (31) provided at the top end of the connecting plate (21) and a stabilizing rod (32) fixed at one end of the clamping column (24), and the stabilizing rod (32) is slidably connected to the slide groove (31), and an elastic component for driving the clamping column (24) to return to its original position is provided on one side of the stabilizing rod (32).

3. The laboratory fume hood according to claim 2, characterized in that: The elastic component comprises a moving frame (33) fixed on one side of the stabilizing rod (32) and a stabilizing frame (34) sleeved on the outside of the clamping column (24), wherein the moving frame (33) is sleeved on the outside of the clamping column (24), the outside of the stabilizing frame (34) is fixed in the sliding groove (31), and a spring (35) is fixed between the stabilizing frame (34) and the moving frame (33).

4. The laboratory fume hood according to claim 3, characterized in that: A connecting assembly (4) is provided in the slide groove (31) for connecting the slide groove (31) with the stabilizing rod (32). The connecting assembly (4) comprises a connecting seat (41) fixed in the slide groove (31) and a connecting cavity (42) provided on one side of the stabilizing rod (32). The connecting seat (41) and the connecting cavity (42) are fixed by clamping. The connecting seat (41) is located above the stabilizing frame (34).

5. The laboratory fume hood according to claim 2, characterized in that: A guide bar (44) is also fixed on one side of the stabilizing rod (32), a guide groove (43) corresponding to the guide bar (44) is provided in the slide groove (31), and the guide groove (43) is slidably connected to the guide bar (44).

6. The laboratory fume hood according to claim 4, characterized in that: A stabilizing groove is also provided on one side of the connection seat (41), a stabilizing block corresponding to the stabilizing groove is fixed in the connection cavity (42), and the stabilizing block is slidably connected to the stabilizing groove.

7. The laboratory fume hood according to claim 2, characterized in that: The top end of the stabilizing rod (32) extends to the outside of the slide groove (31) and is also fixed with a squeezing handle, and the outside of the squeezing handle is sleeved with an anti-slip ring.

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