Simple disassembly and assembly structure for filter of ventilation vertical pipe device

Abstract

The utility model provides a simple disassembly and assembly structure of a filter of a ventilation vertical pipe device. The simple disassembly and assembly structure comprises a dust generating and disinfecting section, a filtering section and a scanning and disinfecting verification section which are connected in sequence, an annular inflation sealing strip is fixed to the lower end of the dust generating and disinfecting section and provided with an inflation valve, a locking device is further arranged on the side wall of the lower end of the dust generating and disinfecting section, and the upper end of the filtering section locks and fixes the lower end of the dust generating and disinfecting section through the locking device. According to the utility model, the filtering section and the dust generating and disinfecting section are connected and mounted through the locking device, and are sealed through the annular inflatable sealing strip, so that during use, the annular inflatable sealing strip is used for inflating and pressing the filtering section to realize the mounting of the filtering section, and the overall sealing performance and the mounting convenience are ensured; the filter section can be replaced only by deflating the inflatable sealing strip, and the filter section can be independently pulled out for replacement without overall disassembly, so that the maintenance safety is improved. Disassembly and assembly are simple and convenient, maintenance and replacement time is saved, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the fields of biomedicine, biosafety and air purification, and in particular to a simple disassembly and assembly structure of a filter of a ventilation standpipe device. Background Art

[0002] The existing ventilation riser high efficiency filter device is mainly used in the ventilation pipes of live wastewater in the pharmaceutical industry, the pharmaceutical industry, and safety laboratories. The main function is to filter the high-humidity harmful gases in the ventilation riser of live wastewater so that they can be discharged safely. The pipeline high efficiency filter device adopts the exhaust design standard of the biological laboratory and is fully suitable for occasions such as vaccine workshops, highly active chemicals, negative pressure isolation areas, and biosafety laboratories that require exhaust filtration. It has a compact structure, is easy to use, simple to maintain, and has a high load capacity, which can ensure the safety of the environment, production, and personnel.

[0003] The main application principle is to load the filter into the tubular device and clamp the filter through the clamping structure of the device. A scanning and disinfection verification section is provided behind the filter, and a sampling port is provided on the box of the scanning and disinfection verification section. The sampling ports on the box correspond to a probe respectively. After the filter is compressed, the axial movement of the scanning probe inside the box is realized by the handwheel or motor on the box of the scanning and disinfection verification section. Inserting a particle counter or photometer with a sampling tube into the sampling port can collect air particles inside the box. The local efficiency of the filter can be obtained by calculation. The disinfection equipment is connected to the disinfection fumigation port through a hose, and the disinfection gas enters the device through the hose connection for disinfection. The disinfection result can be confirmed by a biological indicator or chemical indicator placed in the disinfection detection port. Achieve air purification.

[0004] However, the existing equipment is a tubular structure with three sections. The existing fixing method is clamp locking. In order to ensure airtightness, sealing gaskets are installed at the connection points on both sides of each section. Figure 1 As shown in the figure, the filter is in the middle section. However, the filter needs to be replaced regularly, and the clamp installation makes it very troublesome to replace the filter. If you want to replace the filter, first loosen the clamps at both ends of the filter section and remove the clamps, and remove the sealing gaskets at both ends, as shown in the attached figure. Figure 2As shown, the sealing gaskets on both sides are of concave-convex structure, so it is difficult to move the middle section out from the side during disassembly. This may require the removal of all three sections, which wastes time and labor. Moreover, after the replacement is completed, it is difficult to ensure the overall air tightness during reinstallation. Since the three sections are heavy, safety problems may occur when all three sections are removed. If double-sided inflatable sealing strips are used, compared with inflating both sides at the same time, the instability of the air source may cause the inflation height of the sealing strips on both sides to be inconsistent, resulting in a poor sealing effect, and the middle filter section is suspended relative to the overall device, which is relatively dangerous during disassembly. In addition, the disassembly and assembly of the clamps on both sides is time-consuming and laborious. Summary of the invention

[0005] In view of the above problems, the utility model provides a simple disassembly and assembly structure of a filter of a ventilation standpipe device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A simple disassembly and assembly structure of a filter of a ventilation standpipe device, comprising a dust generating and disinfection section, a filtering section and a scanning and disinfection verification section which are connected in sequence;

[0008] The upper end of the dust generating and disinfection section is locked to the ventilation duct by a clamp; the lower end of the dust generating and disinfection section is fixed with an annular inflation sealing strip, and the annular inflation sealing strip is provided with an inflation valve. The side wall of the upper end of the filter section is also provided with a locking device, and the upper end of the filter section is locked and fixed to the lower end of the dust generating and disinfection section by the locking device, and the lower end of the filter section is locked to the upper end of the scanning and disinfection verification section by a clamp, and the lower end of the scanning and disinfection verification section is locked and fixed to the ventilation duct below by a clamp.

[0009] Furthermore, a first flange is fixed on the outer side surface of the lower end of the dust generating and disinfection section, and a second flange is correspondingly arranged at the upper end of the filtering section. An annular groove is arranged on the inner side of the first flange, and the annular groove is arranged concentrically with the first flange. The annular inflation sealing strip is installed in the annular groove, and a through hole is provided on the first flange for the inflation valve to pass through.

[0010] Furthermore, the outer edges of the first flange and the second flange are respectively provided with a first notch and a second notch, the lower surface of the two side walls of the second notch is fixed with a hinge seat, and one end of the locking device is rotatably mounted on the hinge seat through a pin shaft.

[0011] Furthermore, the locking device includes a locking screw and a locking nut, the locking nut is fixedly mounted on one end of the locking screw through a threaded connection, the other end of the locking screw is rotatably connected to the hinge seat through a pin shaft, the diameter of the locking screw is smaller than the width of the first notch, and the diameter of the locking nut at one end facing the locking screw is larger than the width of the first notch.

[0012] Furthermore, the locking nut has a hand-holding portion at one end away from the locking screw, and a through hole is provided in the middle of the hand-holding portion.

[0013] Furthermore, there are at least two locking devices, and the locking devices are arranged equidistantly around the circumference.

[0014] Furthermore, sealing strips are installed at the connection between the dust generating and disinfecting section and the ventilation duct, at the connection between the filtering section and the upper end of the scanning and disinfection verification section, and at the connection between the lower end of the scanning and disinfection verification section and the lower ventilation duct.

[0015] Compared with the prior art, the utility model has the following beneficial effects: (1) The utility model connects and installs the filter section with the dust generating and disinfection section through a locking device, thereby solving the problem of inconvenient disassembly caused by the clamp locking, and seals the two sections through an annular inflatable sealing strip. When in use, the filter section is compressed by inflating the annular inflatable sealing strip to achieve installation of the filter section, thereby ensuring overall sealing and installation convenience; to replace the filter section, it is only necessary to deflate the inflatable sealing strip, and the filter section can be pulled out and replaced separately without overall disassembly, thereby improving maintenance safety. (2) The utility model is simple and convenient to disassemble and assemble, and the connection between the clamp and the ventilation duct does not need to be disassembled, thereby facilitating maintenance, saving maintenance and replacement time, and reducing costs. (3) The utility model is fixed by a locking device on one side, and an annular inflatable sealing strip is used to inflate and seal the inner side of the locking device. The filter section is inflated on one side, and a common sealing strip is used on the other side, thereby solving the problem of poor airtightness caused by inflatable sealing strips on both sides, and improving the safety of maintenance workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a filter of a ventilation standpipe device in the prior art;

[0017] Figure 2 for Figure 1 An enlarged view of part Ⅰ in the figure;

[0018] Figure 3 It is a schematic diagram of the overall structure of a simple disassembly and assembly structure of a filter of a ventilation standpipe device of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the annular inflatable sealing strip of the utility model in an inflated state;

[0020] Figure 5 It is a structural schematic diagram of the annular inflatable sealing strip of the utility model in a deflated state;

[0021] Figure 6 It is a top view of a simple disassembly and assembly structure of a filter of a ventilation standpipe device of the utility model;

[0022] Figure 7 The utility model is a schematic diagram of the detailed structure of the locking device of the simple disassembly structure of the filter of the ventilation standpipe device. DETAILED DESCRIPTION

[0023] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed description is given in conjunction with the embodiments.

[0024] Please refer to Figure 3 , Figure 4 and Figure 5 , a simple disassembly and assembly structure of a filter of a ventilation standpipe device according to an embodiment of the utility model comprises a dust generating and disinfection section 100, a filtering section 200 and a scanning and disinfection verification section 300 which are connected in sequence;

[0025] The dust generating and disinfection section 100 is provided with a dust generating device 110, the filtering section 200 is provided with a filtering device 210, and the scanning and disinfection verification section 300 is provided with a scanning device 310, which is also equipped with a hand wheel or a motor to realize the axial movement of the scanning probe inside the box.

[0026] The upper end of the dust generating and disinfection section 100 is locked to the ventilation duct 400 by a clamp 700; the lower end of the dust generating and disinfection section 100 is fixed with an annular inflation sealing strip 500, and the annular inflation sealing strip 500 is provided with an inflation valve 510. The side wall of the upper end of the filter section 200 is also provided with a locking device 600. The upper end of the filter section 200 is locked and fixed to the lower end of the dust generating and disinfection section 100 by the locking device 600. The lower end of the filter section 200 is locked to the upper end of the scanning and disinfection verification section 300 by a clamp 700. The lower end of the scanning and disinfection verification section 300 is locked and fixed to the ventilation duct below by the clamp 700.

[0027] The product of the utility model is mainly composed of three sections. First, the dust generation and disinfection section 100 is connected and locked with the ventilation duct 400. The annular inflatable sealing strip 500 is at the lower end of the dust generation and disinfection section 100 and is in an uninflated state. Then the scanning and disinfection verification section 300 is locked with the lower ventilation duct. The two ends have been fixed to the ventilation duct, and then the middle filter section 200 is pushed in. The locking device 600 is locked to a suitable position, and the inflation valve 510 of the inflation seal strip is opened. The annular inflatable sealing strip 500 is inflated to press the filter section 200 to ensure the overall sealing and installation convenience. Due to the segmented operation, the filter only needs to be deflated by the annular inflatable sealing strip 500 to replace the filter, and the filter section 200 can be pulled out separately for replacement without overall dismantling, thereby improving maintenance safety.

[0028] The upper end of the dust generating and disinfection section 100 is locked with the ventilation duct 400 through a clamp 700, and the lower end is fixed with an annular inflatable sealing strip 500. The upper end of the middle filter section 200 is locked with the lower end of the dust generating and disinfection section 100 through a locking device 600, the lower end of the filter section 200 is locked with the upper end of the scanning and disinfection verification section 300 through a clamp, and the lower end of the scanning and disinfection verification section 300 is locked with the ventilation duct through a clamp. After locking, only the annular inflatable sealing strip 500 needs to be inflated and pressed against the contact surface, which is simple and convenient to operate. The connection between the clamp and the ventilation duct does not need to be removed, which is convenient for maintenance, saves time for maintenance and replacement, and reduces costs.

[0029] The outer side surface of the lower end of the dust generating and disinfection section 100 is fixed with a first flange 120, and the upper end of the filter section 200 is correspondingly provided with a second flange 220. The inner side of the first flange 120 is provided with an annular groove 121, and the annular groove 121 is concentrically arranged with the first flange 120. The annular inflatable sealing strip 500 is installed in the annular groove 121, which is convenient for the installation of the annular inflatable sealing strip 500. At the same time, through the corresponding design of the two flanges, after inflation, the annular inflatable sealing strip 500 can contact the upper surface of the second flange 220, providing a contact surface for the annular inflatable sealing strip, ensuring excellent sealing performance. In addition, the annular inflatable sealing strip is also prevented from being exposed, extending the service life. The first flange 120 is provided with a through hole for the inflation valve 510 to pass through. It is ensured that the annular inflatable sealing strip 500 can be inflated and deflated through the inflation valve 510 during use, and the structure is beautiful.

[0030] Combination Figure 6 and Figure 7The first flange 120 and the second flange 220 are provided with a first notch 122 and a second notch 221 at their outer edges, respectively. The lower surfaces of the two side walls of the second notch 221 are fixed with a hinge seat 230, and one end of the locking device 600 is rotatably mounted on the hinge seat 230 through a pin. The locking device 600 is disposed in the middle of the second notch 221. The locking device 600 can be rotated inwardly and outwardly around the pin when in use.

[0031] The locking device 600 includes a locking screw 610 and a locking nut 620. The locking nut 620 is fixedly installed at one end of the locking screw 610 through a threaded connection. Through the threaded connection, the distance between the locking nut 620 and the pin can be adjusted, so that it is convenient to adjust to a suitable position during use, limit the upper and lower positions, and improve the adaptability of the locking device 600. The other end of the locking screw 610 is rotatably connected to the hinge seat 230 through the pin. The diameter of the locking screw 610 is smaller than the width of the first notch 122. The first notch 122 and the second notch 221 have the same structural dimensions. The diameter of the end of the locking nut 620 facing the locking screw 610 is larger than the width of the first notch 122. It is ensured that when in use, the locking screw 610 can enter the first notch 122 and the second notch 221, and the locking nut 620 can contact the upper surface of the first flange 120 to achieve connection and installation.

[0032] During installation, the annular inflatable sealing strip is in a deflated state. Figure 5 First, the second notch of the second flange 220 at the upper end of the filter section 200 is set corresponding to the first notch. At this time, the locking device 600 naturally droops. Then, the locking device 600 is rotated 180° counterclockwise around the pin shaft. The locking screw 610 enters the notch through the openings of the first notch and the second notch. The locking nut 620 is rotated. The lower end of the locking nut 620 contacts the upper surface of the first flange 120. Figure 4 As shown. The locking device is used to achieve quick docking installation, which improves the convenience of installation. When the filter needs to be removed, it is only necessary to loosen the locking nut and rotate the locking nut that contacts the upper surface of the first flange 120 180° clockwise to separate the locking nut from the first flange 120, making it easy to remove. Through this quick lock structure, the filter section can be quickly disassembled and installed, saving time for maintenance and replacement and reducing costs.

[0033] The locking nut 620 has a handle 621 at one end away from the locking screw, and a through hole 622 is provided in the middle of the handle 621. The handle 621 facilitates the screwing of the locking nut, and the through hole 622 provides a force application point, so that the locking nut 620 can be removed or installed by applying force to the through hole through a tool during use.

[0034] Combination Figure 6 As shown, there are at least two locking devices 600, and the locking devices 600 are arranged equidistantly around the circumference. The locking devices 600 are evenly arranged, and the filter section 200 and the dust generation and disinfection section 100 are firmly fixed to prevent falling off. At the same time, the force in all directions is relatively uniform, ensuring good sealing performance.

[0035] The connection between the dust generation and disinfection section 100 and the ventilation duct 400, the connection between the filtering section 200 and the upper end of the scanning and disinfection verification section 300, and the connection between the lower end of the scanning and disinfection verification section 300 and the lower ventilation duct are all equipped with sealing strips. The sealing of the connection between each section is ensured, the sealing of the utility model is improved, and gas leakage is prevented. The sealing strip is an ordinary sealing strip. The use of one-side inflation and the other side ordinary sealing strip solves the problem of poor air tightness caused by the inflation sealing strips on both sides, and improves the safety of maintenance workers and facilitates installation.

[0036] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any changes and modifications made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A simple disassembly and assembly structure of a filter of a ventilation standpipe device, characterized in that: It includes a dust generation and disinfection section, a filtration section, and a scanning and disinfection verification section connected in sequence; The upper end of the dust generating and disinfection section is locked to the ventilation duct by a clamp; the lower end of the dust generating and disinfection section is fixed with an annular inflation sealing strip, and the annular inflation sealing strip is provided with an inflation valve. The side wall of the upper end of the filter section is also provided with a locking device, and the upper end of the filter section is locked and fixed to the lower end of the dust generating and disinfection section by the locking device, and the lower end of the filter section is locked to the upper end of the scanning and disinfection verification section by a clamp, and the lower end of the scanning and disinfection verification section is locked and fixed to the ventilation duct below by a clamp.

2. A simple disassembly and assembly structure of a filter for a ventilation standpipe device as claimed in claim 1, characterized in that: A first flange is fixed on the outer side surface of the lower end of the dust generating and disinfection section, and a second flange is correspondingly arranged at the upper end of the filtering section. An annular groove is arranged on the inner side of the first flange, and the annular groove is arranged concentrically with the first flange. The annular inflation sealing strip is installed in the annular groove, and a through hole is arranged on the first flange for the inflation valve to pass through.

3. A simple disassembly and assembly structure of a filter for a ventilation standpipe device as claimed in claim 2, characterized in that: The outer edges of the first flange and the second flange are respectively provided with a first notch and a second notch, and the lower surface of the two side walls of the second notch is fixed with a hinge seat, and one end of the locking device is rotatably mounted on the hinge seat through a pin shaft.

4. A simple disassembly and assembly structure of a filter for a ventilation standpipe device as claimed in claim 3, characterized in that: The locking device includes a locking screw and a locking nut. The locking nut is fixedly installed on one end of the locking screw through a threaded connection. The other end of the locking screw is rotatably connected to the hinge seat through a pin shaft. The diameter of the locking screw is smaller than the width of the first notch, and the diameter of the locking nut at one end facing the locking screw is larger than the width of the first notch.

5. A simple disassembly and assembly structure of a filter for a ventilation standpipe device as claimed in claim 4, characterized in that: The locking nut is further provided with a hand-holding portion at one end away from the locking screw, and a through hole is further provided in the middle of the hand-holding portion.

6. The simple disassembly and assembly structure of the filter of the ventilation standpipe device according to claim 1, characterized in that: There are at least two locking devices, and the locking devices are arranged equidistantly around the circumference.

7. The easy disassembly and assembly structure of the filter of the ventilation standpipe device according to claim 1, characterized in that: Sealing strips are installed at the connection between the dust generating and disinfecting section and the ventilation duct, at the connection between the filtering section and the upper end of the scanning and disinfection verification section, and at the connection between the lower end of the scanning and disinfection verification section and the lower ventilation duct.

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