Safety cover and waste liquid collecting device

Abstract

The utility model discloses a safety cover and a waste liquid collection device, the safety cover comprises a cover body, the cover body covers an opening of a waste liquid collection container, and the cover body is provided with a first air outlet; the detection assembly is connected with the cover body, a first cavity is formed in the detection assembly, the first cavity communicates with the first air outlet, and a pressure detection piece is arranged at the communicating position of the first cavity and the first air outlet; the filtering assembly is detachably arranged on the side, away from the cover body, of the detection assembly, and the filtering assembly communicates with the first cavity. The detachable filtering assembly is arranged on the cover body to reduce the cost of the safety cover, the reusability of the safety cover is improved, meanwhile, the detection assembly is arranged on the cover body to detect the pressure in the waste liquid collecting container, the situation of waste liquid in a barrel can be determined in time, and the safety cover is convenient to use. And the situation that other instruments are damaged due to abnormal pressure in the waste liquid collecting container is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste liquid treatment, in particular to a safety cover and a waste liquid collecting device. BACKGROUND

[0002] In various types of production or experiments involving chemistry, waste liquid is often generated, which often contains substances harmful to the human body and is easy to evaporate. Therefore, it is generally necessary to collect and temporarily store the waste liquid through a waste liquid collecting barrel, and seal the opening through a corresponding safety cover, waiting for subsequent processing.

[0003] Generally, a filter is arranged in the safety cover. In order to ensure safety, the safety cover needs to be replaced regularly. The replacement cost of the safety cover is high, and the reusability is low.

[0004] In addition, the waste liquid collecting barrel and the safety cover are generally made of opaque materials. After the safety cover is installed, it is difficult to observe the waste liquid in the safety cover and the barrel in a timely manner. If the waste liquid collecting barrel is not replaced in time when the waste liquid is about to fill the barrel, the pressure in the barrel may become large, which may damage other instruments. SUMMARY

[0005] Embodiments of the present application provide a safety cover and a waste liquid collecting device, which can help users to observe the gas pressure in the barrel in a timely and intuitive manner, and reduce the cost by arranging a detachable filter assembly to improve the reusability of the safety cover.

[0006] In a first aspect, embodiments of the present application provide a safety cover, comprising: a cover body configured to cover an opening of a waste liquid collecting container, wherein a first gas outlet is arranged on the cover body; a detection assembly connected with the cover body, wherein a first cavity is formed in the detection assembly, the first cavity is in communication with the inside of the waste liquid collecting container through the first gas outlet, a pressure detection piece is arranged at the communication position of the first cavity and the first gas outlet, and a second gas outlet in communication with the outside of the safety cover is arranged on the first cavity; a filter assembly is detachably arranged on the second gas outlet, and the filter assembly is in communication with the first cavity; the gas in the waste liquid collecting container enters the first cavity through the first gas outlet and is detected by the pressure detection piece, and then is absorbed by the filter assembly.

[0007] In some embodiments, the material of the detection assembly is transparent material, a communication port is arranged in the first cavity, the communication port is in communication with the first gas outlet, the pressure detection piece is a float, the float is located on the communication port, and the float covers the communication port when there is no pressure difference between the first cavity and the waste liquid collecting container, and opens the communication port when there is a pressure difference.

[0008] In some embodiments, the floating block is a sphere, the diameter of the sphere is greater than the diameter of the communication port; the communication port is provided with an air outlet pipeline between the first air outlet, one end of the air outlet pipeline is in communication with the communication port, and the other end of the air outlet pipeline is in communication with the first air outlet.

[0009] In some embodiments, the filter assembly is an activated carbon box, and a plurality of air permeable holes are arranged on one side of the activated carbon box close to the second air outlet.

[0010] In some embodiments, a second cavity is further formed in the detection assembly, the second cavity is arranged on one side of the first cavity, the second cavity is provided with a connecting through hole, and the second cavity is in communication with the first cavity through the connecting through hole; and a PH detection piece is further arranged in the second cavity and arranged on the connecting through hole.

[0011] In some embodiments, the PH detection piece is PH test paper, the PH test paper is arranged on the connecting through hole; and an opening is further arranged on the side of the second cavity away from the PH test paper, and a closable cover is arranged on the opening.

[0012] In some embodiments, a mounting piece is arranged on the side of the detection assembly close to the filter assembly, and the filter assembly is detachably connected with the detection assembly through the mounting piece.

[0013] In some embodiments, a mounting groove is arranged on the mounting piece, and the filter assembly is embedded in the mounting groove;

[0014] The filter assembly is threadedly connected with the mounting groove, or the filter assembly is snap-connected with the mounting groove, or the filter assembly is provided with an elastic sealing ring, and the filter assembly is connected with the mounting groove in an interference fit through the elastic sealing ring.

[0015] In the second aspect, the embodiments of the present application provide a waste liquid collecting device, the waste liquid collecting device comprises a waste liquid collecting container and a safety cover, the safety cover is arranged on the opening of the waste liquid collecting container, the safety cover is any one of the safety covers described above, and the safety cover is used to detect and absorb the gas in the waste liquid collecting container.

[0016] In some embodiments, the safety cover is threadedly connected with the opening of the waste liquid collecting container, or the safety cover is snap-connected with the opening of the waste liquid collecting container, or the opening of the waste liquid collecting container is provided with an elastic sealing ring, and the safety cover is connected with the opening of the waste liquid collecting container in an interference fit through the elastic sealing ring.

[0017] The beneficial effects of the present application are: the present application reduces the cost of the safety cover by setting the detachable filter assembly on the cover body, and improves the reusability of the safety cover, at the same time, the present application sets the detection assembly on the cover body to detect the pressure in the waste liquid collecting container, so as to determine the waste liquid condition in the barrel in time, and avoid the case that the pressure in the waste liquid collecting container is abnormal and other instruments are damaged. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0019] Figure 1 is a safety cover structure schematic diagram of an embodiment in the present application;

[0020] Figure 2 is an enlarged schematic diagram of the A part structure of the present application Figure 1 .

[0021] Figure 3 is a waste liquid collecting device structure schematic diagram of an embodiment in the present application. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0023] Please refer to Figure 1 , an embodiment of the present application provides a safety cover, comprising:

[0024] a cover body 10 for covering the opening of the waste liquid collecting container 600, the cover body 10 is provided with a first gas outlet 100;

[0025] a detection assembly 20, the detection assembly 20 is connected with the cover body 10, a first cavity 200 is formed in the detection assembly 20, the first cavity 200 is communicated with the inside of the waste liquid collecting container 600 through the first gas outlet 100, a pressure detection piece 201 is arranged at the communication part of the first cavity 200 and the first gas outlet 100, the first cavity 200 is provided with a second gas outlet 400 communicated with the outside of the safety cover;

[0026] A filter assembly 30 is detachably arranged on the second air outlet, and the filter assembly 30 is in communication with the first cavity 200.

[0027] The gas in the waste liquid collecting container 600 enters the first cavity 200 through the first air outlet 100 and is detected by the pressure detecting member 201, and then is absorbed by the filter assembly 30.

[0028] The cover 10 is arranged on the opening of the waste liquid collecting container 600 to seal the waste liquid collecting container 600, so as to avoid leakage of the waste liquid and the gas generated by the waste liquid. The waste liquid collecting container 600 can be a storage container for storing waste liquid in any waste liquid detection or treatment device, or can be an independently arranged waste liquid collecting barrel. The first air outlet 100 is arranged on the cover 10 and is matched with the opening of the waste liquid collecting container 600. The second air outlet 400 is used to discharge the gas entering the first cavity 200 from the waste liquid collecting container 600, so as to avoid safety hazards caused by excessive pressure in the waste liquid collecting container 600. In an embodiment, the cover 10 is detachably connected with the waste liquid collecting container 600.

[0029] The detection assembly 20 can detect the pressure in the waste liquid collecting container 600. Specifically, the first cavity 200 is formed in the detection assembly 20, the first cavity 200 is in communication with the waste liquid collecting container 600 through the first air outlet 100 of the cover 10, and the pressure detecting member 201 is arranged at the communication position of the first cavity 200 and the first air outlet 100. The pressure detecting member 201 can detect or directly reflect the pressure condition in the waste liquid collecting container 600. In the above arrangement, the first cavity 200 can communicate with the inside of the waste liquid collecting container 600, so as to ensure the accuracy of the pressure detecting member 201. In this arrangement, the pressure detecting member 201 does not need to extend into the inside of the waste liquid collecting container 600, so as to improve the service life of the pressure detecting member 201.

[0030] In the embodiment, the pressure detecting member 201 can use an existing air pressure sensor, and the detected data can be transmitted to a corresponding terminal for viewing. The specific structure and method can adopt the existing technology, and will not be described in detail here.

[0031] The filter assembly 30 is detachably arranged on the second air outlet 400 of the first cavity 200 in the detection assembly 20, and the harmful substances in the first cavity 200 can be absorbed by the filter assembly 30, so as to avoid entering the external environment and causing harm to the user. Meanwhile, the detachable arrangement can also help to regularly replace the filter assembly 30, so as to increase the service life of the safety cover, reduce the cost of the safety cover, and improve the reusability of the safety cover. The structure of the embodiment is simple to install and easy to use.

[0032] Further optimization of the structure in the detection assembly 20 is made as follows Figure 2 In one embodiment, the detection assembly 20 is made of transparent material, and a communication port 202 is arranged in the first cavity 200, the communication port 202 is in communication with the first gas outlet 100, and the pressure detection member 201 is a float, which is located on the communication port 202 and covers the communication port 202 when there is no pressure difference between the first cavity 200 and the waste liquid collecting container 600, and opens the communication port 202 when there is a pressure difference.

[0033] In this embodiment, the detection assembly 20 is made of transparent material, and the pressure detection member 201 is a float on the communication port 202. The state of the float is controlled by the pressure difference between the waste liquid collecting container 600 and the first cavity 200, that is, when there is a pressure difference between the first cavity 200 and the waste liquid collecting container 600, the float is forced to float up to open the communication port 202. At this time, since the detection assembly 20 is made of transparent material, the user can more intuitively determine the gas pressure in the waste liquid collecting container 600 by observing the float in the first cavity 200, and further understand the filling situation of the waste liquid in the waste liquid collecting container 600, which facilitates the replacement of the waste liquid collecting container 600 before the liquid level of the waste liquid reaches the critical point.

[0034] In one example, the float is made of light and corrosion-resistant material. In use, when the waste liquid in the waste liquid collecting container 600 reaches a certain height, the internal pressure rises, causing the float to float up, and the internal waste liquid filling situation can be obtained by observing the floating situation of the float, providing a certain reference for subsequent waste liquid treatment.

[0035] In one example, the float is in a spherical structure. It should be noted that the float in the present application is not limited to a specific shape, and can be square or oval, etc., as long as the minimum width thereof is greater than the diameter of the communication port.

[0036] In one embodiment, referring to Figure 2 , the float is a sphere, and the diameter of the sphere is greater than the diameter of the communication port 202; a gas outlet pipeline 40 is arranged between the communication port 202 and the first gas outlet 100, one end of the gas outlet pipeline 40 is in communication with the communication port 202, and the other end of the gas outlet pipeline 40 is in communication with the first gas outlet 100.

[0037] In this embodiment, the diameter of the sphere is greater than the diameter of the communication port 202, which is to ensure that the float of the sphere does not fall into the waste liquid collecting container 600 from the communication port 202. The purpose of arranging the gas outlet pipeline 40 is to increase the speed of the gas in the process of passing through the gas outlet pipeline 40, so that the float is more easily floated, helping the user to more intuitively observe the situation.

[0038] In one embodiment, the filtering assembly 30 is an activated carbon box, and the activated carbon box is provided with a plurality of air holes 301 on one side close to the second air outlet 400. This arrangement is to reduce the cost of the filtering assembly 30. In use, only the activated carbon in the activated carbon box needs to be replaced, thereby further reducing the cost of the filtering assembly 30.

[0039] In one embodiment, the detection assembly 20 is further formed with a second cavity 203, and the second cavity 203 is arranged on one side of the first cavity 200. The second cavity 203 is provided with a connecting through hole 204, and the second cavity 203 is in communication with the first cavity 200 through the connecting through hole 204.

[0040] The second cavity 203 is further provided with a PH detection piece 205, and the PH detection piece 205 is arranged on the connecting through hole 204.

[0041] In this embodiment, the second cavity 203 is used to install the PH detection piece 205, and the second cavity 203 is in communication with the first cavity 200 through the connecting through hole 204. By arranging the PH detection piece 205 on the connecting through hole 204, the PH detection piece 205 can detect the gas in the first cavity 200 and further detect the PH value of the waste liquid. This arrangement is to prevent the PH detection piece 205 from being inserted into the interior of the waste liquid collecting container 600, thereby facilitating use and prolonging the service life of the PH detection piece 205.

[0042] In one example, the PH detection piece 205 can use an existing PH detector, and the detected data can be sent to a terminal for viewing. The specific structure and method can adopt the existing technology, and will not be described in detail here.

[0043] In one embodiment, the PH detection piece 205 is a PH test paper, and the PH test paper is arranged on the connecting through hole 204. The second cavity 203 is further provided with an opening on the side away from the PH test paper, and the opening is provided with an openable and closable cover 206. The use of the PH test paper can reduce the cost of PH detection. Specifically, the fixing method of the PH test paper can be to immerse (or paste by adhesion) the PH test paper to adhere around the connecting through hole 204 and cover the connecting through hole 204. Alternatively, a layer of air-permeable mesh structure layer can be arranged on the connecting through hole 204, and the PH test paper is pasted on the mesh structure layer. Alternatively, the PH test paper can be fixed on the connecting through hole 204 by some fixing pieces. The openable and closable cover 206 can be freely opened and closed to place or take out the PH test paper. Further, the connection between the openable and closable cover 206 and the shell of the detection assembly 20 at the position of the second cavity 203 can adopt the existing technology, such as the rotatable connection between the two through a shaft, and will not be described in detail here.

[0044] In one embodiment, the detection assembly 20 is provided with a mounting member 50 on the side close to the filtration assembly 30, and the filtration assembly 30 is detachably connected with the detection assembly 20 through the mounting member 50. The detachable connection between the detection assembly 20 and the filtration assembly 30 is achieved through the mounting member 50, which will be described in some embodiments.

[0045] In one embodiment, the mounting member 50 is provided with a mounting groove 500, and the filtration assembly 30 is embedded in the mounting groove 500. During installation, the filtration assembly 30 is directly embedded in the mounting groove 500 to complete the installation, and the filtration assembly 30 can be directly removed when it needs to be replaced. Only the size of the filtration assembly 30 needs to be matched with the mounting groove 500.

[0046] Further fixing the filtration assembly 30 in the mounting groove 500 can be that the filtration assembly 30 is threadedly connected with the mounting groove 500, or the filtration assembly 30 is snap-connected with the mounting groove 500, or the filtration assembly 30 is provided with an elastic sealing ring, and the filtration assembly 30 is connected with the mounting groove 500 in an interference fit through the elastic sealing ring. Some embodiments will be described in detail.

[0047] In one embodiment, the mounting groove 500 is a threaded groove, and the side wall of the filtration assembly 30 is provided with a threaded structure 300. The filtration assembly 30 is detachably connected with the threaded groove through the threaded structure 300. In this embodiment, when the filtration assembly 30 is installed or removed, only the filtration assembly 30 needs to be rotated to complete the installation of the filtration assembly 30 with the mounting member 50 or remove it.

[0048] In another embodiment, the mounting groove 500 is provided with a buckling groove, and the part of the filtration assembly 30 embedded in the mounting groove 500 is provided with a buckling structure. The filtration assembly 30 is snap-connected with the buckling groove through the buckling structure to achieve the buckling of the filtration assembly 30 in the mounting groove 500.

[0049] In yet another embodiment, the filtration assembly 30 is provided with an elastic sealing ring, and the material of the elastic sealing ring can be selected as silica gel. In this embodiment, the filtration assembly 30 is fixed and sealed with the mounting groove 500 in an interference fit through the elastic sealing ring.

[0050] For reference Figure 3 In another embodiment, the filtration assembly 30 is provided with an elastic sealing ring, and the material of the elastic sealing ring can be selected as silica gel. In this embodiment, the filtration assembly 30 is fixed and sealed with the mounting groove 500 in an interference fit through the elastic sealing ring.

[0051] The waste liquid collecting container 600 can be any existing model of waste liquid collecting container, and only the size of the cover body 10 of the safety cover 601 needs to be matched with the opening size of the waste liquid collecting container 600.

[0052] Further, the safety cover 601 is threadedly connected with the opening of the waste liquid collecting container 600, or the safety cover 601 is snap-connected with the opening of the waste liquid collecting container 600, or the opening of the waste liquid collecting container 600 is provided with an elastic sealing ring, and the safety cover 601 is connected with the opening of the waste liquid collecting container 600 by interference fit through the elastic sealing ring. The fixing mode of the safety cover 601 and the waste liquid collecting container 600 will be described below by some embodiments.

[0053] In one embodiment, the inner wall of the safety cover 601 is provided with a threaded groove, the opening of the waste liquid collecting container 600 is provided with a threaded structure, and the safety cover 601 and the opening of the waste liquid collecting container 600 are detachably fixed and connected through the cooperation of the threaded structure and the threaded groove.

[0054] In another embodiment, the inner wall of the safety cover 601 is provided with a buckling groove, the opening of the waste liquid collecting container 600 is provided with a snap structure, and the safety cover 601 and the opening of the waste liquid collecting container 600 are fixed by the snap connection of the snap structure and the buckling groove.

[0055] In yet another embodiment, the opening of the waste liquid collecting container 600 is provided with an elastic sealing ring, and the material of the elastic sealing ring can be selected from silica gel. In this embodiment, when the safety cover 601 is covered on the opening of the waste liquid collecting container 600, the inner wall of the safety cover 601 is interference-fitted with the elastic sealing ring to realize fixation and sealing.

[0056] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A security cap characterised in that, The application relates to a waste liquid collecting device. The device comprises a cover body for covering an opening of a waste liquid collecting container, wherein a first gas outlet is arranged on the cover body; a detection assembly is connected with the cover body, a first cavity is formed in the detection assembly, the first cavity is communicated with the inside of the waste liquid collecting container through the first gas outlet, a pressure detection piece is arranged at the communication position of the first cavity and the first gas outlet, and a second gas outlet is arranged on the detection assembly and communicated with the outside of the safety cover; a filter assembly is detachably arranged on the second gas outlet and communicated with the first cavity; and the gas in the waste liquid collecting container enters the first cavity through the first gas outlet and is detected by the pressure detection piece and then absorbed by the filter assembly. The material of the detection assembly is transparent material, a communication port is arranged in the first cavity, the communication port is communicated with the first gas outlet, the pressure detection piece is a floating block, the floating block is located on the communication port, and the floating block covers the communication port when there is no pressure difference between the first cavity and the waste liquid collecting container and opens the communication port when there is a pressure difference. The floating block is a spherical body, and the diameter of the spherical body is larger than the diameter of the communication port. An air outlet pipeline is arranged between the communication port and the first gas outlet, one end of the air outlet pipeline is communicated with the communication port, and the other end of the air outlet pipeline is communicated with the first gas outlet.

2. The security cap of claim 1, wherein The filter assembly is an activated carbon box, and a plurality of air permeable holes are arranged on one side of the activated carbon box close to the second gas outlet.

3. The security cap of claim 2, wherein A second cavity is further formed in the detection assembly, the second cavity is arranged on one side of the first cavity, the second cavity is provided with a connecting through hole, and the second cavity is communicated with the first cavity through the connecting through hole. A PH detection piece is further arranged in the second cavity and arranged on the connecting through hole.

4. The security cap of claim 1, wherein The PH detection piece is PH test paper, the PH test paper is arranged on the connecting through hole, and an opening is further arranged on the side of the second cavity away from the PH test paper, and a cover capable of being opened and closed is arranged on the opening.

5. The security cap of claim 1, wherein An installation piece is arranged on one side of the detection assembly close to the filter assembly, and the filter assembly is detachably connected with the detection assembly through the installation piece. An installation groove is arranged on the installation piece, and the filter assembly is embedded in the installation groove.

6. The security cap of claim 5, wherein The filter assembly is screw-connected with the installation groove, or the filter assembly is buckle-connected with the installation groove, or an elastic sealing ring is arranged on the filter assembly, and the filter assembly is connected with the installation groove in an interference fit through the elastic sealing ring.

7. The child-resistant cap of claim 1, wherein The waste liquid collecting device comprises a waste liquid collecting container and a safety cover, the safety cover is arranged on the opening of the waste liquid collecting container, the safety cover is the safety cover in any one of claims 1-8, and the safety cover is used for detecting and absorbing the gas in the waste liquid collecting container.

8. The security cap of claim 7, wherein ​ ​ 9. A waste fluid collection device, characterized by, ​ 10. The waste fluid collection device of claim 9, wherein, The safety cover is threadedly connected with the opening of the waste liquid collecting container; or, the safety cover is buckled with the opening of the waste liquid collecting container; or, an elastic sealing ring is arranged on the opening of the waste liquid collecting container, and the safety cover is connected with the opening of the waste liquid collecting container in an interference fit through the elastic sealing ring.

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