A sealed liquid adding device

Abstract

The utility model relates to a kind of closed liquid adding device, it includes: it includes: sealed bucket, its lower part is provided with faucet, its top is detachably provided with bucket cover;Pad is set on the bottom of the sealed bucket, and let slot is set on it;Flexible liquid storage bag is fixedly set on the pad by magic tape component, the upper portion of the liquid storage bag is provided with transfer component for and raw material bucket detachably connected to carry out liquid filling, the bottom of the liquid storage bag is provided with liquid outlet pipe for and the faucet detachably connected, to discharge the liquid in liquid storage bag by the faucet, the liquid outlet pipe is placed in the let slot.Polyethylene plastic bucket pouring has reduced toxic gas overflow and diffusion, cause medical staff eye and respiratory mucosa exposure risk, guarantee the physical and mental health of medical staff.

Description

Technical Field

[0001] This utility model relates to the field of liquid sealing and storage technology, specifically a closed liquid adding device. Background Technology

[0002] Formalin is a 35%-40% aqueous solution of formaldehyde, with formaldehyde as its main component. Formaldehyde is a toxic gas that, when released into the air, strongly irritates the conjunctiva of the eyes and the mucous membranes of the respiratory tract, while also increasing the risk of cancer. Clinically, 10% formalin is often added to phosphate buffer for specimen processing, and the finished product is usually stored in food-grade polyethylene plastic containers. When using formalin in hospitals, it needs to be poured from a small-capacity polyethylene plastic container into a large-capacity temporary storage container for subsequent experiments or specimen preparation. This transfer of formalin solution requires medical staff to repeatedly open and close the plastic container, and the lid of the large container is prone to tipping over and leaks. When pouring by hand, the solution easily spills and spreads into the air. Furthermore, the solution is directly exposed to the air during pouring, still posing a risk of diffusion and increasing the risk of exposure to the eyes and respiratory mucous membranes for medical staff, thus harming their physical and mental health.

[0003] Therefore, a closed-loop liquid addition device is needed to transfer and store the formalin solution in polyethylene plastic drums, in order to reduce the number of times the plastic drum lid is opened and closed, and the process of adding it to the temporary storage container is simple and convenient, does not easily cause spillage, and reduces the volatilization of toxic gases. Utility Model Content

[0004] The technical problem to be solved by this utility model is how to provide a closed liquid adding device that reduces the number of times the lid of a plastic bucket is opened and closed, and whose process of adding liquid to a temporary storage container is simple and convenient, does not easily cause spillage, and reduces the volatilization of toxic gases.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: A closed-loop liquid dosing device, the key technology of which includes: A sealed bucket with a faucet at the bottom and a detachable lid at the top; A pad block with a clearance groove is provided on the bottom of the sealed barrel; A flexible liquid storage bag is fixed to the pad by a Velcro assembly. The upper part of the liquid storage bag is provided with a transfer assembly for detachable connection with the raw material barrel for liquid filling. The bottom of the liquid storage bag is provided with a liquid outlet pipe for detachable connection with the faucet to release the liquid in the liquid storage bag through the faucet. The liquid outlet pipe is placed in the relief groove.

[0006] In one embodiment of this utility model, a support ring is provided at the bottom of the liquid storage bag, and the end of the liquid outlet tube is connected to the area enclosed by the support ring. The support ring and the pad are connected by the Velcro assembly to prevent the liquid outlet tube from moving when the liquid storage bag is deformed.

[0007] In one embodiment of this utility model, an adapter chamber is provided on the inner side of the sealed bucket corresponding to the faucet, and a connector body is provided on the adapter chamber. The connector body is connected to the faucet through the adapter chamber.

[0008] In one embodiment of this utility model, a ferrule nut is provided at the end of the liquid outlet tube corresponding to the connector body. The connector body is threadedly connected to the ferrule nut, and a ferrule is provided between the ferrule nut and the liquid outlet tube, so that the connector body, the ferrule, and the ferrule nut form a ferrule connector structure.

[0009] In one embodiment of this utility model, the transfer assembly includes a transfer connector body connected to the liquid storage bag via a transfer hose, a screw stop portion disposed on the transfer connector body, a threaded portion disposed on the screw stop portion, and a vent pipe disposed on one side of the screw stop portion. The vent pipe is connected to the transfer hose for unidirectional air entry into the transfer hose.

[0010] In one embodiment of this utility model, the threaded portion is provided with a cap.

[0011] In one embodiment of this utility model, the transfer hose is provided with a hose clamp to prevent the gas in the liquid storage bag from escaping into the air after the cap is opened.

[0012] As one embodiment of this utility model, a one-way valve is provided on the bucket lid, which is used to allow air to enter the sealed bucket after the faucet is turned on, so as to balance the air pressure inside the sealed bucket.

[0013] In one embodiment of this utility model, the upper part of the sealing barrel is evenly provided with several sets of buckles in the circumferential direction, and the buckles are used to press and fasten the barrel lid onto the sealing barrel.

[0014] In one embodiment of this utility model, the hook and loop fastener assembly includes four sets of rough-surface hook and loop fasteners evenly arranged on the support ring in the circumferential direction and four sets of hook-surface hook and loop fasteners evenly arranged on the pad in the circumferential direction.

[0015] The beneficial effects of adopting the above technical solution are as follows: Formalin in polyethylene plastic buckets can be pre-filled into the storage bag of this invention. Formalin is then removed from the storage bag during experiments and specimen preparation, reducing the risk of gas diffusion and exposure to toxic gases for medical personnel during the pouring process.

[0016] The liquid storage bag of this utility model is made of flexible material. It is placed on the pad at the bottom of the sealed barrel so that the liquid outlet tube of the storage bag is aligned with the faucet on the sealed barrel.

[0017] The sealing container of this invention forms a closed cavity after the lid is closed. It can also isolate and seal the liquid in case the storage bag is damaged and leaks, thus preventing toxic gases from spreading to the outside. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of an embodiment.

[0019] Figure 2 This is a structural schematic diagram of the barrel from an inside-the-box perspective in an embodiment.

[0020] Figure 3 yes Figure 2 A schematic diagram of the structure at point A in the middle.

[0021] Figure 4 This is a structural schematic diagram of the bucket from an upward viewing angle in an embodiment.

[0022] Figure 5 This is a schematic diagram of the pad block in the embodiment.

[0023] Figure 6 This is a schematic diagram of the relay component in an embodiment.

[0024] Among them: 100 Sealed barrel; 101 Faucet; 102 Adapter compartment; 103 Connector body; 104 Box buckle; 200 Drum lid; 201 Check valve; 300 Spacer block; 301 Hook and loop fastener; 302 Leaning groove; 400 Liquid storage bag; 401 Liquid outlet tube; 402 Compression ferrule nut; 403 Support ring; 404 Textured Velcro; 500 Transfer assembly; 501 Transfer hose; 502 Transfer connector body; 503 Locking part; 504 Vent tube; 505 Threaded part; 600 caps. Detailed Implementation

[0025] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be clearly and completely described below in conjunction with specific embodiments.

[0026] like Figures 1 to 4The disclosed closed-loop liquid filling device includes: a sealed container 100, a pad 300 placed on the bottom inner side of the sealed container 100, and a liquid storage bag 400 placed on the pad 300. In this embodiment, the sealed container 100 is made of 304 stainless steel, and the liquid storage bag 400 adopts the structure of a folded drinking bag. After being filled, it forms a cylindrical shape (in this embodiment, a cylinder) corresponding to the inner cavity of the sealed container 100. After being filled, the liquid storage bag 400 abuts against the inner wall of the sealed container 100, thereby increasing the space utilization rate inside the container and increasing the liquid storage capacity of the liquid storage bag 400.

[0027] See Figure 2 In this embodiment, a faucet 101 is provided at the bottom of the sealed bucket 100, and a bucket lid 200 is detachably provided at the top of the bucket through a buckle assembly. The height of the pad 300 is such that after the liquid storage bag 400 is placed, the height of the liquid outlet pipe 401 corresponds to that of the faucet 101.

[0028] See Figure 5 The pad 300 has a long groove 302, one end of which penetrates the side wall of the pad 300 and corresponds to the position of the faucet 101.

[0029] See Figure 4 The liquid storage bag 400 is fixedly mounted on the pad 300 by a Velcro assembly. The bottom of the liquid storage bag 400 is provided with a liquid outlet pipe 401 for detachable connection with the faucet 101 so that the liquid in the liquid storage bag 400 can be released through the faucet 101. The liquid outlet pipe 401 is placed in the relief groove 302.

[0030] See details Figure 4 The bottom of the liquid storage bag 400 is provided with a support ring 403. The support ring 403 is made of epoxy resin board or bakelite and is bonded to the bottom of the liquid storage bag 400. The end of the liquid outlet pipe 401 is connected to the area enclosed by the support ring 403. The support ring 403 and the pad 300 are connected by the Velcro assembly to prevent the liquid outlet pipe 401 from moving with the deformation of the liquid storage bag 400 when the liquid storage bag 400 is deformed, which would affect the life of the connection at both ends of the liquid outlet pipe 401.

[0031] See Figure 4 and Figure 5 The hook and loop fastener assembly includes four sets of rough-surface hook and loop fasteners 404 evenly arranged in the circumferential direction on the support ring 403 and four sets of hook-surface hook and loop fasteners 301 evenly arranged in the circumferential direction on the pad block 300.

[0032] In this embodiment, the upper part of the liquid storage bag 400 is provided with a transfer component 500 for detachable connection with the raw material barrel for liquid filling, and the bottom of the liquid storage bag 400 is provided with a liquid outlet pipe 401 for detachable connection with the faucet 101 to release the liquid in the liquid storage bag 400 through the faucet 101.

[0033] See Figure 4 and Figure 5 An adapter chamber 102 is provided inside the sealed container 100 corresponding to the faucet 101. A connector body 103 is provided on the adapter chamber 102, and the connector body 103 is connected to the faucet 101 through the adapter chamber 102. The adapter chamber 102 is welded to the side wall of the sealed container 100 to ensure that the cavity inside the adapter chamber 102 is isolated from the interior of the sealed container 100. An inclined surface is provided on the adapter chamber 102, and the connector body 103 is provided on the inclined surface so that the connector body 103 is tilted towards the liquid outlet pipe 401, which facilitates the connection between the liquid outlet pipe 401 and the connector body 103.

[0034] See Figure 3 The end of the liquid outlet pipe 401 is provided with a ferrule nut 402 corresponding to the connector body 103. The connector body 103 is threadedly connected to the ferrule nut 402. A ferrule is provided between the ferrule nut 402 and the liquid outlet pipe 401, so that the connector body 103, the ferrule and the ferrule nut 402 form a ferrule connector structure.

[0035] See Figure 6 The transfer assembly 500 includes a transfer connector body 502 connected to the storage bag 400 via a transfer hose 501, a stop portion 503 on the transfer connector body 502, a threaded portion 505 on the stop portion 503, and a vent pipe 504 on one side of the stop portion 503. The vent pipe 504 is connected to the transfer hose 501 to allow air to enter the transfer hose 501 in one direction, thereby regulating the air pressure. In this embodiment, a connecting pipe can be installed at the outlet of the polyethylene plastic drum (raw material drum). One end of the connecting pipe is equipped with a compression fitting assembly adapted to the threaded portion 505. The connection is detachable with reference to the connection method of the outlet pipe 401 and the connector body 103. After pouring formalin, formalin can be filled into the storage bag. At this time, air can enter the raw material drum through the vent pipe 504 to balance the air pressure inside the drum. In this embodiment, the structural principle of the venting tube 504 can be referred to the structural principle of the exhaust tube on the infusion tube used to balance the gas pressure in the infusion bottle. Specifically, the end of the venting tube 504 is provided with an anti-backflow structure (diaphragm valve) which can be used to allow gas to enter the transfer component 500, while preventing formalin liquid from overflowing through the venting tube 504.

[0036] The threaded part 505 is provided with a cap 600. When not filling, the cap 600 is tightened to prevent gas and liquid from leaking out of the storage bag 400.

[0037] The transfer hose 501 is equipped with a hose clamp, the structure of which can be referenced from the structure of a Robert clamp or a sealing clamp, to prevent the gas in the liquid storage bag 400 from escaping into the air after the cap 600 is opened.

[0038] See Figure 2 The lid 200 is equipped with a one-way valve 201, which is used to allow air to enter the sealed bucket 100 after the tap 101 is turned on, so as to balance the air pressure inside the sealed bucket 100.

[0039] See Figure 1 In this embodiment, the box buckle assembly includes four sets of box buckles 104 evenly arranged in the circumferential direction on the upper part of the sealing barrel 100. The box buckles 104 are used to press and fasten the barrel lid 200 onto the sealing barrel 100.

Claims

1. A closed liquid filling device, characterized by It includes: A sealed bucket (100) is provided with a faucet (101) at the bottom and a bucket lid (200) is detachably provided at the top. A pad (300) is provided on the bottom of the sealed barrel (100), and a relief groove (302) is provided thereon. A flexible liquid storage bag (400) is fixedly mounted on the pad (300) by a Velcro assembly. A transfer assembly (500) is provided on the upper part of the liquid storage bag (400) for detachable connection with the raw material barrel for liquid filling. A liquid outlet pipe (401) is provided on the bottom of the liquid storage bag (400) for detachable connection with the faucet (101) to release the liquid in the liquid storage bag (400) through the faucet (101). The liquid outlet pipe (401) is placed in the relief groove (302).

2. The liquid adding device according to claim 1, wherein The bottom of the liquid storage bag (400) is provided with a support ring (403), and the end of the liquid outlet pipe (401) is connected to the area enclosed by the support ring (403). The support ring (403) and the pad (300) are connected by the Velcro assembly to prevent the liquid outlet pipe (401) from moving when the liquid storage bag (400) deforms.

3. The liquid adding device according to claim 1, wherein An adapter compartment (102) is provided on the inner side of the sealed container (100) corresponding to the faucet (101). A connector body (103) is provided on the adapter compartment (102). The connector body (103) is connected to the faucet (101) through the adapter compartment (102).

4. The liquid adding device according to claim 3, wherein The end of the outlet pipe (401) is provided with a ferrule nut (402) corresponding to the connector body (103). The connector body (103) is threadedly connected to the ferrule nut (402). A ferrule is provided between the ferrule nut (402) and the outlet pipe (401), so that the connector body (103), the ferrule and the ferrule nut (402) form a ferrule connector structure.

5. The liquid filling device according to claim 1, wherein The transfer assembly (500) includes a transfer connector body (502) connected to the liquid storage bag (400) via a transfer hose (501), a screw stop (503) provided on the transfer connector body (502), a threaded portion (505) provided on the screw stop (503), and a vent pipe (504) provided on one side of the screw stop (503). The vent pipe (504) is connected to the transfer hose (501) for unidirectional air entry into the transfer hose (501).

6. The liquid filling device according to claim 5, wherein The threaded part (505) is provided with a cap (600) for threaded connection.

7. The liquid filling device according to claim 6, wherein The transfer hose (501) is equipped with a hose clamp to prevent the gas inside the liquid storage bag (400) from escaping into the air after the cap (600) is opened.

8. The liquid adding device according to claim 1, wherein The lid (200) is equipped with a one-way valve (201) for allowing air to enter the sealed bucket (100) after the tap (101) is turned on, so as to balance the air pressure inside the sealed bucket (100).

9. The liquid filling device according to claim 1, wherein The upper part of the sealed barrel (100) is evenly provided with several sets of buckles (104) in the circumferential direction. The buckles (104) are used to press and fasten the barrel lid (200) onto the sealed barrel (100).

10. The liquid filling device according to claim 2, wherein The hook and loop assembly includes four sets of rough hook and loop fasteners (404) evenly arranged in the circumferential direction on the support ring (403) and four sets of hook and loop fasteners (301) evenly arranged in the circumferential direction on the pad (300).

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