Replaceable waste liquid collecting bottle cap capable of reducing solvent volatilization

Abstract

The utility model provides a replaceable waste liquid collecting bottle cap capable of reducing solvent volatilization, which comprises an anti-winding pipe cap body, a sealed guide pipe joint and a replaceable waste liquid filter, and the barrel body at the upper end of the adsorption barrel body can be repeatedly filled with adsorption particles through a net plate at the bottom. According to the replaceable waste liquid collecting bottle cap, the replaceable waste liquid filter is designed to be of an assembly type composed of the adsorption barrel and the filter barrel cover, adsorption particles in the barrel can be conveniently replaced according to needs, the whole filter does not need to be replaced, therefore, the service life of the filter is prolonged, the use cost is reduced, and the replaceable waste liquid collecting bottle cap is simple in structural design and convenient to use. The adsorption particles and the air filter membrane are convenient to replace and maintain, use is flexible, the use cost of a laboratory is greatly reduced, and practicability is good.

Description

Technical Field

[0001] The utility model relates to an auxiliary collection device for organic volatile solvent waste liquid, in particular to a replaceable waste liquid collection bottle cap which can reduce solvent volatilization. Background Art

[0002] In daily chemical experiments, a large amount of waste liquid is generally toxic and harmful, and cannot be dumped at will. For example, methanol, ethanol, isopropanol, n-hexane and other toxic and harmful waste liquids are generated during the experiment. If these waste liquids are not purified, they will seriously endanger the life safety of the experimenters. Due to the toxic and harmful characteristics of the waste liquid, the conventional method currently used is to let the discharged volatile organic waste liquid flow into the waste liquid collection bottle through a catheter, and set a waste liquid safety bottle cap on the waste liquid collection bottle, and use the adsorption filter set on the waste liquid safety bottle cap to prevent the solvent from volatilizing outwards, so as to protect the safety of the experimenters and the laboratory environment from being polluted.

[0003] The existing waste liquid safety bottle cap is mainly provided with a catheter hole and a filter on the bottle cap. The catheter passes through the catheter hole to discharge the waste liquid into the bottle. In the past, in order to ensure the air pressure balance in the waste liquid bottle, there was a gap between the catheter and the catheter hole. The gap allows the gas inside and outside the bottle to pass through to maintain the air pressure balance inside and outside the bottle. However, this will inevitably cause the volatile waste liquid in the bottle or the waste gas generated by the reaction to leak out of the bottle through the gap, resulting in poor sealing performance and easy pollution of the laboratory environment.

[0004] In addition, the organic waste gas filters on the existing waste liquid safety bottle caps generally adopt an integrated structure with disposable adsorption particles inside. After the adsorption particles in the filter adsorb the waste gas to a certain saturation, they need to be replaced as a whole. The service life is short, and the filter needs to be replaced regularly, which has a high cost of use and does not meet the development needs of the laboratory to reduce costs and increase efficiency. Utility Model Content

[0005] The technical problem to be solved by the utility model is: in view of the defects of air leakage and high use cost of the existing waste liquid safety bottle caps, a replaceable waste liquid collection bottle cap which can reduce solvent volatilization is provided.

[0006] The utility model adopts the following technical solutions to solve the above technical problems:

[0007] A replaceable waste liquid collection bottle cap that can reduce solvent volatilization includes an anti-tube winding cover body, a sealed catheter joint and a replaceable waste liquid filter, wherein: the replaceable waste liquid filter is composed of an adsorption cylinder and a filter cylinder cover threadedly installed on the top of the adsorption cylinder, and the cylinder body at the upper end of the adsorption cylinder can be repeatedly filled with adsorption particles through a mesh plate at the bottom.

[0008] Preferably, the anti-winding tube cover comprises a lower cover and an upper cover, wherein:

[0009] The upper cover body can be rotatably limited and installed in the through hole at the top of the lower cover body, and the top is provided with a first threaded hole for assembling the sealed conduit joint and a second threaded hole for assembling the replaceable waste liquid filter.

[0010] More preferably, the top of the upper cover body is further provided with an inclined surface, and a third threaded hole for assembling the liquid level alarm is opened on the inclined surface.

[0011] Preferably, the sealed conduit connector is composed of a coaxially arranged conduit connector body, a hollow locking cap and a perforated conduit, wherein:

[0012] The lower end of the through-tube joint body is sealed and installed in the first threaded hole on the top of the anti-tube cover body, and the hollow locking cap is threadedly installed on the top of the through-tube joint body to seal and lock the perforated conduit with the inner hole.

[0013] Preferably, the upper portion of the adsorption cylinder is cylindrical, the lower portion is funnel-shaped, and the mesh plate is provided at the connection between the upper and lower portions.

[0014] Preferably, an annular support platform is provided on the inner circumferential wall at the connection between the upper and lower parts of the adsorption cylinder, and the mesh plate is mounted on the annular support platform.

[0015] Preferably, the mesh plate is an inverted cone-shaped structure with a concave middle portion, and is provided with a plurality of through holes with a smaller aperture than that of the adsorption particles.

[0016] Preferably, the outer peripheral wall of the tube body at the lower end of the adsorption cylinder is provided with a first external thread, and a limiting ring and a first sealing ring are provided on the tube body at the top of the first external thread; and the outer peripheral wall of the top of the adsorption cylinder is provided with a second external thread.

[0017] Preferably, a plurality of air holes are provided on the top of the filter cartridge cover, an anti-slip block is provided on the outer peripheral wall of the lower end, and an inner peripheral wall of the lower end is provided with an inner thread matching the second outer thread.

[0018] More preferably, an air filter membrane and a pressure plate frame are embedded in the inner top of the filter cartridge cover, and a second sealing ring is provided at the bottom of the lower periphery of the pressure plate frame.

[0019] The utility model adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0020] The utility model provides a replaceable waste liquid collection bottle cap that can reduce solvent volatilization. By designing the replaceable waste liquid filter as an assembled type consisting of an adsorption cylinder and a filter cylinder cover, it is convenient to replace the adsorption particles in the cylinder as needed without replacing the filter as a whole, thereby increasing the service life of the filter and reducing the use cost. On the one hand, the adsorption particles in the cylinder can be used to effectively adsorb volatile organic waste gas in the waste liquid bottle to avoid leakage and pollution of the laboratory environment. On the other hand, the air filter membrane embedded in the filter cylinder cover can be used to filter the outside air and achieve the purpose of two-way filtration, and can be used for sealing volatile solvent bottles. The replaceable waste liquid collection bottle cap has a simple structural design, and the adsorption particles and the air filter membrane are easy to replace and maintain, and it is flexible to use, which greatly reduces the use cost of the laboratory and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a replaceable waste liquid collection bottle cap capable of reducing solvent volatilization according to the utility model;

[0022] Figure 2 This is a cross-sectional structural schematic diagram of a replaceable waste liquid collection bottle cap capable of reducing solvent volatilization according to the utility model;

[0023] Figure 3 This is a schematic diagram of the explosion structure of a replaceable waste liquid collection bottle cap that can reduce solvent volatilization in the utility model. Figure 1 ;

[0024] Figure 4 This is a schematic diagram of the explosion structure of a replaceable waste liquid collection bottle cap that can reduce solvent volatilization in the utility model. Figure 2 ;

[0025] Figure 5 This is a schematic diagram of the main structure of an adsorption cylinder in a replaceable waste liquid collection bottle cap capable of reducing solvent volatilization according to the utility model;

[0026] Figure 6 This is a schematic diagram of the cross-sectional structure of the adsorption cylinder in a replaceable waste liquid collection bottle cap that can reduce solvent volatilization. Figure 1 ;

[0027] Figure 7 This is a schematic diagram of the cross-sectional structure of the adsorption cylinder in a replaceable waste liquid collection bottle cap that can reduce solvent volatilization. Figure 2 ;

[0028] Figure 8 The utility model is a schematic cross-sectional structure diagram of a filter cartridge cover in a replaceable waste liquid collection bottle cover capable of reducing solvent volatilization. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0031] In some embodiments, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a replaceable waste liquid collection bottle cap that can reduce solvent volatilization is provided, and the waste liquid collection bottle cap mainly includes an anti-winding pipe cover body 100, a sealed catheter connector 200 and a replaceable waste liquid filter 300 that are assembled as one. The replaceable waste liquid collection bottle cap has a simple structural design, and the replacement and maintenance of adsorbed particles and air filter membranes are convenient and flexible to use, which greatly reduces the use cost of the laboratory and has good practicality.

[0032] like Figure 2 and Figure 3 As shown, the replaceable waste liquid filter 300 adopts a split design, which is mainly composed of an adsorption cylinder 310 and a filter cylinder cover 320. The filter cylinder cover 320 is installed on the top of the adsorption cylinder 310 with a detachable thread. The cylinder at the upper end of the adsorption cylinder 310 can be repeatedly filled with adsorption particles through the mesh plate 316 at the bottom. When necessary, the filter cylinder cover 320 is manually opened to replace and fill the adsorption particles in the adsorption cylinder 310.

[0033] The replaceable waste liquid collection bottle cap is designed to be an assembled type consisting of a replaceable waste liquid filter 300 consisting of an adsorption cylinder 310 and a filter cylinder cap 320. The adsorption particles in the cylinder can be easily replaced as needed without replacing the filter as a whole, thereby increasing the service life of the filter and reducing the cost of use. The adsorption particles in the cylinder can effectively adsorb volatile organic waste gas in the waste liquid bottle, reduce solvent volatilization, and avoid leakage that causes pollution of the laboratory environment.

[0034] In some of the embodiments, Figure 1 As shown, the anti-winding cover 100 adopts an anti-winding structure design, which mainly includes a lower cover 110 and an upper cover 120. The upper cover 120 can be rotatably limited and installed in the through hole at the top of the lower cover 110, and when the cover 110 is threadedly rotated and installed on the waste liquid bottle mouth, the lower cover 110 and the upper cover 120 can be directly rotatably connected to keep the upper cover 120 relatively immovable relative to the waste liquid bottle and the catheter thereon, thereby preventing the catheter from winding.

[0035] To facilitate the installation of the sealed conduit connector 200 and the replaceable waste liquid filter 300, a first threaded hole 121 for assembling the sealed conduit connector 200 and a second threaded hole 122 for assembling the replaceable waste liquid filter 300 are formed on the top of the upper cover 120. The aperture of the first threaded hole 121 is smaller than that of the second threaded hole 122.

[0036] In addition, if Figure 1 and Figure 3 As shown, a slope 123 is also provided on the top of the upper cover 120, and a third threaded hole 124 for assembling a liquid level alarm is provided on the slope 123. The aperture of the third threaded hole 124 is equal to the aperture of the first threaded hole 121, and is used to install a liquid level alarm to detect the height of the waste liquid in the waste liquid bottle to prevent the waste liquid from overflowing and causing safety hazards.

[0037] In some of the embodiments, Figure 2 and Figure 3 As shown, the sealed conduit connector 200 is mainly composed of a coaxially arranged conduit connector body 210, a hollow locking cap 220 and a perforated conduit 230. The perforated conduit 230 is vertically inserted into the inner holes of the conduit connector body 210 and the hollow locking cap 220, with the lower end inserted into the waste liquid bottle and the upper end connected to the drain pipe.

[0038] Specifically, the lower end of the pipe joint body 210 is sealed and installed in the first threaded hole 121 at the top of the anti-winding cover body 100, and is detachably installed on the upper cover body 120 of the anti-winding cover body 100. The hollow locking cap 220 is threadedly installed on the top of the pipe joint body 210. When the hollow locking cap 220 is tightened at the upper end of the pipe joint body 210, the pipe opening of the pipe joint body 210 can be contracted, thereby achieving the purpose of tightening and sealing the perforated conduit 230.

[0039] In some of the embodiments, Figure 5 , Figure 6 and Figure 7 As shown, the upper part of the adsorption cylinder 310 is cylindrical, the lower part is funnel-shaped, and a mesh plate 316 is provided at the connection between the upper and lower parts. The mesh plate 316 is an inverted cone structure with a concave middle part, and is provided with a plurality of through holes with a smaller aperture than the adsorption particles for filling the adsorption particles. As required, the adsorption particles can be activated carbon particles, which can effectively adsorb organic volatile solvents and have a good adsorption and purification effect.

[0040] To facilitate the installation of the mesh plate 316, an annular support platform 315 is provided on the inner peripheral wall of the connection between the upper and lower parts of the adsorption cylinder 310, and the mesh plate 316 is mounted on the annular support platform 315. The annular support platform 315 and the adsorption cylinder 310 are an integral structure, made of plastic, and the mesh plate 316 is made of stainless steel or aluminum alloy.

[0041] In some of the embodiments, Figure 3 , Figure 4 and Figure 5 As shown, in order to achieve a sealed connection with the upper cover body 120, a first external thread 311 is provided on the outer peripheral wall of the tube body at the lower end of the adsorption cylinder body 310, and a limiting ring 312 and a first sealing ring 313 are provided on the tube body at the top of the first external thread 311; when the adsorption cylinder body 310 is threadedly installed in the second threaded hole 122 on the upper cover body 120, the first sealing ring 313 is tightly pressed on the upper cover body 120.

[0042] In addition, in order to achieve a detachable connection with the filter cartridge cover 320, a second external thread 314 is provided on the outer peripheral wall at the top of the adsorption cylinder body 310. Correspondingly, an internal thread 323 matching the second external thread 314 is provided on the inner peripheral wall at the lower end of the filter cartridge cover 320. At the same time, in order to facilitate the removal of the filter cartridge cover 320, an anti-sliding block 322 is provided on the outer peripheral wall at the lower end of the filter cartridge cover 320, thereby improving the efficiency of manually removing the filter cartridge cover 320 for replacing adsorbed particles.

[0043] In some of the embodiments, Figure 2 and Figure 8 As shown, a plurality of air holes 321 are provided on the top of the filter cartridge cover 320 to facilitate the discharge of the volatile gas in the waste liquid bottle after filtering and purification, so as to maintain the internal and external pressure balance.

[0044] In addition, as required, an air filter membrane 325 and a pressing plate frame 326 can be embedded in the inner top of the filter cartridge cover 320. The pressing plate frame 326 is hollow and can pass gas. The air filter membrane 325 can be pressed tightly at the inner top of the filter cartridge cover 320 through the pressing plate frame 326. The air filter membrane 325 embedded in the filter cartridge cover 320 is used to filter the outside air and achieve the purpose of two-way filtering. It can be used to seal volatile solvent bottles, and while preventing solvent volatilization and leakage, it also prevents the outside air from contaminating the solvent in the solvent bottle.

[0045] At the same time, in order to ensure the sealing between the filter cartridge cover 320 and the adsorption cylinder body 310 and avoid air leakage, a second sealing ring 324 is provided at the bottom of the lower periphery of the pressing plate frame 326. When in use, when the filter cartridge cover 320 is manually screwed and installed on the top of the adsorption cylinder body 310, the pressing plate frame 326 is pressed against the top of the adsorption cylinder body 310 through the second sealing ring 324, thereby achieving a seal between the two.

[0046] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0047] Secondly, the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0048] Finally, the above description is only a preferred embodiment of the present invention and is 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 replaceable waste liquid collection bottle cap capable of reducing solvent volatilization, characterized in that: The invention comprises an anti-pipe winding cover body (100), a sealed conduit joint (200) and a replaceable waste liquid filter (300), wherein the replaceable waste liquid filter (300) is composed of an adsorption cylinder (310) and a filter cylinder cover (320) threadedly mounted on the top of the adsorption cylinder (310), and the cylinder body at the upper end of the adsorption cylinder (310) can be repeatedly filled with adsorption particles through a mesh plate (316) at the bottom.

2. The replaceable waste liquid collection bottle cap according to claim 1, characterized in that: The anti-winding tube cover (100) comprises a lower cover (110) and an upper cover (120), wherein: The upper cover body (120) is rotatably limited and installed in the through hole at the top of the lower cover body (110), and has a first threaded hole (121) for assembling the sealed catheter joint (200) and a second threaded hole (122) for assembling the replaceable waste liquid filter (300) on its top.

3. The replaceable waste liquid collection bottle cap according to claim 2, characterized in that: The top of the upper cover body (120) is also provided with an inclined surface (123), and a third threaded hole (124) for assembling a liquid level alarm is provided on the inclined surface (123).

4. The replaceable waste liquid collection bottle cap according to claim 1, characterized in that: The sealed conduit connector (200) is composed of a coaxially arranged conduit connector body (210), a hollow locking cap (220) and a perforated conduit (230), wherein: The lower end of the through-tube joint body (210) is sealingly installed in the first threaded hole (121) at the top of the anti-tube cover body (100), and the hollow locking cap (220) is threadedly installed on the top of the through-tube joint body (210) to seal and lock the perforated conduit (230) in the inner hole.

5. The replaceable waste liquid collection bottle cap according to claim 1, characterized in that: The upper portion of the adsorption cylinder (310) is cylindrical, and the lower portion is funnel-shaped, and the mesh plate (316) is provided at the connection between the upper and lower portions.

6. The replaceable waste liquid collection bottle cap according to claim 1, characterized in that: An annular support platform (315) is provided on the inner peripheral wall of the connection between the upper and lower parts of the adsorption cylinder (310), and the mesh plate (316) is mounted on the annular support platform (315).

7. The replaceable waste liquid collection bottle cap according to claim 1, characterized in that: The mesh plate (316) is an inverted cone-shaped structure with a concave middle portion, and is provided with a plurality of through holes with a smaller aperture than the adsorption particles.

8. The replaceable waste liquid collection bottle cap according to claim 1, characterized in that: The outer peripheral wall of the tube body at the lower end of the adsorption cylinder (310) is provided with a first external thread (311), and a limit ring (312) and a first sealing ring (313) are provided on the tube body at the top of the first external thread (311); and the outer peripheral wall of the top of the adsorption cylinder (310) is provided with a second external thread (314).

9. The replaceable waste liquid collection bottle cap according to claim 1, characterized in that: The top of the filter cartridge cover (320) is provided with a plurality of air holes (321), the outer peripheral wall of the lower end is provided with an anti-sliding block (322), and the inner peripheral wall of the lower end is provided with an inner thread (323) matching with the second outer thread (314).

10. The replaceable waste liquid collection bottle cap according to claim 9, characterized in that: An air filter membrane (325) and a pressure plate frame (326) are embedded in the inner top of the filter cartridge cover (320), and a second sealing ring (324) is provided at the bottom of the lower periphery of the pressure plate frame (326).

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