Laboratory ventilating duct

Abstract

The utility model relates to the technical field of ventilation pipelines, and provides a laboratory ventilation pipeline which comprises a first strip-shaped frame, connecting frames are fixedly installed on the front side and the rear side of the top of the first strip-shaped frame, and a plurality of first bolts are detachably installed on the tops of the connecting frames. According to the laboratory ventilation pipeline, through cooperative use of an inner plate structure and a second rubber pad structure, in the working process, due to the fact that the second rubber pad prevents the inner plate from being directly attached to and making contact with the ventilation pipeline and the first rubber pad prevents the bottom plate from being directly attached to and making contact with the second strip-shaped frame, the ventilation pipeline is not prone to falling off during working; vibration generated by the ventilation pipeline can be transmitted to a second strip-shaped frame and a first strip-shaped frame through a second rubber pad, an inner plate, a spring, a bottom plate, a first rubber pad and other structures, and the transmitted vibration force is small, so that the vibration of the second strip-shaped frame and the first strip-shaped frame is reduced, and the stability of the first strip-shaped frame during installation is improved; the effects that vibration borne by the ventilation pipeline during working is reduced, and the ventilation pipeline is effectively fixed and installed are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation ducts, and specifically to a laboratory ventilation duct. Background Art

[0002] Ventilation ducts are metal or composite pipes used in ventilation and air-conditioning projects in industrial and civil buildings. They are a kind of municipal infrastructure to allow air circulation and reduce the concentration of harmful gases. Ventilation ducts are also widely used in laboratories to increase the ventilation of laboratories. However, ventilation ducts are prone to falling off or loosening during long-term use, affecting the ventilation performance of the laboratory. Therefore, a firmly installed laboratory ventilation duct is needed to solve the above problems.

[0003] After searching, the Chinese patent announcement number is CN216814561U, which discloses a firmly installed laboratory ventilation duct. In this patent, the ventilation duct body can be supported by a support frame to increase the firmness of the ventilation duct body and reduce the possibility of the ventilation duct body falling off or loosening. The position of the mounting block can be adjusted by sliding the adjustment rod on the fixed cylinder, and then the screw rod is turned counterclockwise to lock the adjustment rod, which can adapt to walls of different heights and is convenient and practical.

[0004] However, in actual use, the ventilation duct becomes loose during use mainly because during ventilation, the wind flows in the duct, causing the duct to shake. In addition, the ventilation ducts in general laboratories are mostly assembled in a multi-section welded and fixed manner, so that during long-term use, the ventilation duct is vibrated and the ventilation duct and the installation point become loose or even fall off. Therefore, the device in the above patent cannot effectively improve the stability of the ventilation duct installation. Utility Model Content

[0005] The utility model provides a laboratory ventilation duct, which solves the problem in the related art that the ventilation duct cannot be effectively fixed and installed due to vibration generated by ventilation during use.

[0006] The technical scheme of the utility model is as follows: a laboratory ventilation duct comprises a strip frame 1, a connecting frame is fixedly installed on the front and rear sides of the top of the strip frame 1, a plurality of bolts 1 are detachably installed on the top of the connecting frame, a rotating shaft is rotatably installed on the right side of the top of the strip frame 1, a side plate is fixedly installed on the right side of the bottom of the rotating shaft, an extrusion pad is fixedly installed on the left side of the side plate, a groove is provided in the middle part of the bottom of the side plate, a plurality of threaded holes 1 are provided on the bottom right side of the side plate, a bolt 2 is detachably installed on the inner cavity of the threaded hole 1, a plurality of threaded holes 2 are provided on the bottom right side of the strip frame 1, a plurality of sliding grooves are provided on the front and rear sides of the inner wall of the strip frame 1, a slider is movably installed on the inner cavity of the sliding groove, a strip frame 2 is fixedly installed on one side of the slider extending out of the sliding groove, a bottom plate is fixedly installed on the inner wall of the strip frame 2, a rubber pad 1 is fixedly installed between the bottom plate and the inner wall of the strip frame 2, a plurality of springs are fixedly installed on the inner cavity of the bottom plate, an inner plate is movably installed on the other side of the bottom plate, and a rubber pad 2 is fixedly installed on the other side of the inner plate.

[0007] Preferably, the top of the strip frame 1 is detachably mounted to the inner wall of the wall at the corresponding position through a connecting frame and a bolt 1.

[0008] Preferably, the shape and size of the side panel matches the shape and size of the right side of strip frame one, and the shape and size of the compression pad matches the shape and size of the right side of strip frame two, so that when in use, the side panel and the compression pad are used to seal and assemble strip frame one and strip frame two.

[0009] Preferably, the threaded hole 1 and the threaded hole 2 are matched in distribution position and quantity, and the threaded hole 1 and the threaded hole 2 are evenly distributed on the right bottom of the strip frame 1 and the side panel.

[0010] Preferably, the inner walls of the threaded hole one and the threaded hole two are provided with threads matching the outer surface of the bolt two, and the length of the bolt two is greater than the width of the side plate, so that when in use, the bolt two is inserted through the threaded hole one and inserted into the threaded hole two to be fixed, so that the side plate is fixed to the right side of the strip frame one, thereby sealing the strip frame one.

[0011] Preferably, the slide groove is opened on the left side and the upper and lower sides of the inner wall of the bar frame, and the shape of the inner cavity of the slide groove and the shape of the outer surface of the slider are both polygonal designs. Therefore, when in use, the polygonal design of the inner cavity of the slide groove and the outer surface of the slider makes the slider always move in the inner cavity of the slide groove.

[0012] Preferably, the top of the slider extends out of the inner cavity of the slide groove, and the strip frame 2 has only three side walls, namely, the upper and lower sides and the left side. Therefore, when in use, the slider and the slide groove can be used to allow the strip frame 2 on the front and rear sides to be telescopically moved forward, thereby improving the stability of the ventilation duct connection after the combination is set within the inner cavity of the strip frame 1.

[0013] Preferably, the material of the rubber pad 1 and the rubber pad 2 is made of synthetic rubber material, so that when in use, the rubber pad 2 is used to prevent the inner plate from directly fitting and contacting the ventilation duct, and the rubber pad 1 is used to prevent the bottom plate from directly fitting and contacting the strip frame 2. Therefore, when working, the vibration generated by the ventilation duct is transmitted to the strip frame 2 and the strip frame 1 through multiple structures such as the rubber pad 2, the inner plate, the spring, the bottom plate and the rubber pad 1, and the vibration force is small, thereby reducing the vibration of the strip frame 2 and the strip frame 1 and improving the stability of the strip frame 1 during installation.

[0014] Preferably, the inner plate is movably installed in the inner cavity of the bottom plate through a spring, so that when in use, the rubber pad 2, the inner plate, the spring, the bottom plate and the rubber pad 1 can be used to install ventilation ducts within a certain width range, thereby increasing the actual use range and reducing the vibration force generated when the ventilation duct is working.

[0015] Preferably, the bottom plate is evenly fixedly mounted on each inner wall of the second strip frame and the left side of the extrusion pad.

[0016] The working principle and beneficial effects of the utility model are:

[0017] 1. The laboratory ventilation duct is used in conjunction with the inner plate structure and the rubber pad structure. During operation, the rubber pad prevents the inner plate from directly fitting and contacting the ventilation duct, and the rubber pad prevents the bottom plate from directly fitting and contacting the strip frame 2. Therefore, during operation, the vibration generated by the ventilation duct can be transmitted to the strip frame 2 and the strip frame 1 through the rubber pad 2, the inner plate, the spring, the bottom plate, the rubber pad 1 and other structures. The vibration force after transmission is small, thereby reducing the vibration of the strip frame 2 and the strip frame 1, improving the stability of the strip frame 1 during installation, achieving the effect of reducing the vibration of the ventilation duct during operation, and effectively fixing the ventilation duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a schematic diagram of the front appearance of the overall structure of the utility model;

[0020] Figure 2 It is a side view schematic diagram of the overall structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the front appearance of the overall structure of the utility model after being cut open;

[0022] Figure 4 It is a schematic diagram of the side elevation appearance of the overall structure of the utility model after being cut open;

[0023] Figure 5 For this utility model Figure 3A schematic diagram of the structure at A;

[0024] Figure 6 For this utility model Figure 4 Schematic diagram of the structure at point B.

[0025] In the figure: 1. Bar frame 1; 2. Connecting frame; 3. Bolt 1; 4. Rotating shaft; 5. Side plate; 6. Extrusion pad; 7. Bolt 2; 8. Groove; 9. Threaded hole 1; 10. Threaded hole 2; 11. Slide groove; 12. Slider; 13. Bar frame 2; 14. Rubber pad 1; 15. Bottom plate; 16. Spring; 17. Inner plate; 18. Rubber pad 2. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 to Figure 6As shown, a laboratory ventilation duct comprises a strip frame 1, the top of the strip frame 1 is detachably mounted on the inner wall of the wall at the corresponding position through a connecting frame 2 and a bolt 3, the front and rear sides of the top of the strip frame 1 are fixedly mounted with a connecting frame 2, the top of the connecting frame 2 is detachably mounted with a plurality of bolts 3, a rotating shaft 4 is rotatably mounted on the right side of the top of the strip frame 1, a side plate 5 is fixedly mounted on the right side of the bottom of the rotating shaft 4, the shape and size of the side plate 5 match the shape and size of the right side of the strip frame 1, the shape and size of the extrusion pad 6 match the shape and size of the right side of the strip frame 2 13, so that when in use, the side plate 5 and the extrusion pad 6 are used to make the strip frame 1 and the strip frame 2 13 sealed and assembled, the extrusion pad 6 is fixedly mounted on the left side of the side plate 5, and a bottom middle portion of the side plate 5 is opened There is a groove 8, and a plurality of threaded holes 9 are provided at the bottom of the right side of the side panel 5. The distribution position and quantity of the threaded holes 9 and the threaded holes 10 are matched. The threaded holes 9 and the threaded holes 10 are evenly distributed at the right bottom of the strip frame 1 and the side panel 5. The inner walls of the threaded holes 9 and the threaded holes 10 are provided with threads matching the outer surface of the bolts 7. The length of the bolts 7 is greater than the width of the side panel 5. When in use, the bolts 7 are inserted through the threaded holes 9 and inserted into the threaded holes 10 for fixing, so that the side panel 5 is fixed to the right side of the strip frame 1, thereby sealing the strip frame 1. The inner cavity of the threaded holes 9 is detachably installed with the bolts 7. The bottom of the right side of the strip frame 1 is provided with a plurality of threaded holes 10, and a plurality of slide grooves are provided on both the front and rear sides of the inner wall of the strip frame 1. 11, the slide groove 11 is opened on the left side and the upper and lower sides of the inner wall of the strip frame 1, and the shape of the inner cavity of the slide groove 11 and the shape of the outer surface of the slider 12 are both polygonal designs. Therefore, when in use, the polygonal design of the inner cavity shape of the slide groove 11 and the outer surface shape of the slider 12 allows the slider 12 to always move in the inner cavity of the slide groove 11, and the inner cavity of the slide groove 11 is movably installed with the slider 12, and the top of the slider 12 extends out of the inner cavity of the slide groove 11. The strip frame 13 has only three side walls, namely the upper and lower sides and the left side. Therefore, when in use, the slider 12 and the slide groove 11 are used to make the strip frames 13 on the front and rear sides telescopically move forward, so as to improve the stability of the ventilation duct connection after the combination set within the inner cavity range of the strip frame 1, and the slider 12 extends out of the slide groove 11. One side is fixedly installed with The strip frame 13 is provided with a bottom plate 15 fixedly mounted on the inner wall of the strip frame 13, and a rubber pad 14 is fixedly mounted between the bottom plate 15 and the inner wall of the strip frame 13. The rubber pad 14 and the rubber pad 18 are made of synthetic rubber. When the strip frame 13 is used, the rubber pad 18 is used to prevent the inner plate 17 from directly fitting and contacting with the ventilation duct, and the rubber pad 14 is used to prevent the bottom plate 15 from directly fitting and contacting with the strip frame 13. When the vibration generated by the ventilation duct is transmitted to the strip frame 13 and the strip frame 1 through the rubber pad 18, the inner plate 17, the spring 16, the bottom plate 15, the rubber pad 14 and other structures during operation, the vibration force is small, thereby reducing the vibration of the strip frame 13 and the strip frame 1, and improving the stability of the strip frame 1 during installation.The bottom plate 15 is evenly fixedly installed on each inner wall of the bar frame 13 and the left side of the extrusion pad 6. A plurality of springs 16 are fixedly installed in the inner cavity of the bottom plate 15. An inner plate 17 is movably installed on the other side of the bottom plate 15. The inner plate 17 is movably installed in the inner cavity of the bottom plate 15 through the spring 16. When in use, the rubber pad 18, the inner plate 17, the spring 16, the bottom plate 15 and the rubber pad 14 can be used to install a ventilation duct with a certain width range, thereby increasing the actual use range and reducing the vibration force generated when the ventilation duct is working. The rubber pad 18 is fixedly installed on the other side of the inner plate 17.

[0028] Working principle: When in use, first move the strip frame 1 to a suitable installation position, then use a tool to assemble the connecting frame 2 with the wall of the installation position through the bolt 3, then use a tool to rotate the bolt 7 to move it out of the threaded hole 10, and then manually open the side panel 5 quickly through the groove 8. At this time, the ventilation duct is welded and moved into the inner cavity of the strip frame 13. During the moving process, the distance between the front and rear strip frames 13 can be manually moved according to actual needs to improve the stability of the ventilation duct during use. During the installation process, the bottom plate 15, spring 16 and inner plate 17 set on the upper and lower sides of the inner cavity of the strip frame 13 are used to facilitate the rapid installation of the ventilation duct. After installation, the side panel 5 is manually rotated in the opposite direction. , so that it covers the right side of the strip frame 1, and then use a tool to rotate the bolt 2 7 to make it extend into the threaded hole 2 10 on the rear side of the corresponding position, so as to fix the side plate 5 to make the strip frame 1 sealed. During the working process, because the rubber pad 2 18 prevents the inner plate 17 from directly fitting and contacting with the ventilation duct, and the rubber pad 14 prevents the bottom plate 15 from directly fitting and contacting with the strip frame 2 13, during operation, the vibration generated by the ventilation duct can be transmitted to the strip frame 2 13 and the strip frame 1 through multiple structures such as the rubber pad 2 18, the inner plate 17, the spring 16, the bottom plate 15 and the rubber pad 14. The vibration force after transmission is small, thereby reducing the vibration of the strip frame 2 13 and the strip frame 1, and improving the stability of the strip frame 1 during installation.

[0029] In summary, compared with general similar devices, this laboratory ventilation duct has the advantage of reducing the vibration of the ventilation duct during operation, so that the ventilation duct can be effectively fixed and installed.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laboratory ventilation duct, characterized in that: The invention comprises a bar frame (1), wherein a connecting frame (2) is fixedly installed on both the front and rear sides of the top of the bar frame (1), a plurality of bolts (3) are detachably installed on the top of the connecting frame (2), a rotating shaft (4) is rotatably installed on the right side of the top of the bar frame (1), a side plate (5) is fixedly installed on the right side of the bottom of the rotating shaft (4), a pressing pad (6) is fixedly installed on the left side of the side plate (5), a groove (8) is provided in the middle of the bottom of the side plate (5), a plurality of threaded holes (9) are provided on the bottom of the right side of the side plate (5), a bolt (7) is detachably installed in the inner cavity of the threaded hole (9), a plurality of threaded holes (8) are provided on the bottom of the right side of the bar frame (1), The second hole (10) is provided with a plurality of slide grooves (11) on both the front and rear sides of the inner wall of the first bar frame (1); a slider (12) is movably mounted in the inner cavity of the slide groove (11); a second bar frame (13) is fixedly mounted on the side where the slider (12) extends out of the slide groove (11); a bottom plate (15) is fixedly mounted on the inner wall of the second bar frame (13); a rubber pad (14) is fixedly mounted between the bottom plate (15) and the inner wall of the second bar frame (13); a plurality of springs (16) are fixedly mounted in the inner cavity of the bottom plate (15); an inner plate (17) is movably mounted on the other side of the bottom plate (15); and a second rubber pad (18) is fixedly mounted on the other side of the inner plate (17).

2. A laboratory ventilation duct according to claim 1, characterized in that: The top of the strip frame (1) is detachably mounted on the inner wall of the wall at the corresponding position via a connecting frame (2) and a bolt (3).

3. A laboratory ventilation duct according to claim 1, characterized in that: The shape and size of the side plate (5) match the shape and size of the right side of the strip frame one (1), and the shape and size of the squeezing pad (6) match the shape and size of the right side of the strip frame two (13).

4. A laboratory ventilation duct according to claim 1, characterized in that: The threaded hole 1 (9) and the threaded hole 2 (10) are matched in distribution position and quantity, and the threaded hole 1 (9) and the threaded hole 2 (10) are evenly distributed on the right bottom of the strip frame 1 (1) and the side plate (5).

5. A laboratory ventilation duct according to claim 1, characterized in that: The inner walls of the threaded hole 1 (9) and the threaded hole 2 (10) are provided with threads matching the outer surface of the bolt 2 (7), and the length of the bolt 2 (7) is greater than the width of the side plate (5).

6. A laboratory ventilation duct according to claim 1, characterized in that: The slide groove (11) is arranged on the left side and the upper and lower sides of the inner wall of the strip frame (1), and the shape of the inner cavity of the slide groove (11) and the shape of the outer surface of the slider (12) are both polygonal designs.

7. A laboratory ventilation duct according to claim 1, characterized in that: The top of the sliding block (12) extends out of the inner cavity of the sliding groove (11), and the second strip frame (13) has only three side walls, namely, the upper and lower sides and the left side.

8. A laboratory ventilation duct according to claim 1, characterized in that: The rubber pad 1 (14) and the rubber pad 2 (18) are made of synthetic rubber material.

9. A laboratory ventilation duct according to claim 1, characterized in that: The inner plate (17) is movably mounted in the inner cavity of the bottom plate (15) via a spring (16).

10. A laboratory ventilation duct according to claim 1, characterized in that: The bottom plate (15) is evenly fixedly mounted on each inner wall of the second strip frame (13) and the left side of the extrusion pad (6).

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