Liquid hazardous chemical substance suction device

Abstract

The utility model relates to the technical field of medical instruments, and discloses a liquid hazardous chemical substance suction device which comprises a sealing seat and a suction head. The first inlet and the first outlet are located at the two opposite ends of the inner cavity, the sealing piece is movably arranged in the inner cavity through an elastic piece, the sealing piece is suitable for reciprocating movement between a sealing position and a conduction position, when the sealing piece is located at the sealing position, the sealing piece blocks the first outlet, and when the sealing piece is located at the conduction position, the sealing piece blocks the second outlet. The first inlet, the inner cavity and the first outlet are communicated. The suction head and the sealing seat are detachably installed, the suction head comprises a liquid pipeline, a pressing piece and a liquid pump arranged on the liquid pipeline, and when the suction head and the sealing seat are installed, the pressing piece abuts against the sealing piece and pushes the sealing piece to move from the sealing position to the communicating position. According to the liquid hazardous chemical substance suction device, the liquid hazardous chemical substances are prevented from volatilizing from the bottle opening of the container through the sealing effect of the sealing base and the suction head, and the safety of medical staff is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and in particular to a device for sucking hazardous liquid chemicals. Background Art

[0002] Liquid hazardous chemicals are widely used in hospital clinical work, including alcohol, formalin, glutaraldehyde, etc. These liquids play an indispensable role in clinical work, such as disinfection, tissue fixation, and corpse preservation. Formalin, in particular, refers to a formaldehyde solution with a concentration of 35% or 37% or higher. It is a colorless liquid with antiseptic properties and is commonly used clinically for tissue fixation. Formalin products purchased by medical institutions are typically packaged in plastic containers. During use, the formalin solution must be poured or aspirated from the plastic container. For aspiration, for example, a suction device can extract the formalin solution through a hose. However, the seal between the suction device and the opening of the plastic container is poor, making the formalin solution easily volatile. Furthermore, when the suction device is replaced, the opening of the plastic container is exposed to air, increasing the amount of formalin solution volatile. Leaving the opening of a used formalin container uncovered for an extended period also creates volatility. Formalin is a chronic poison. Long-term exposure to low doses of formalin can cause chronic respiratory diseases, menstrual disorders in women, weakened neonatal health, and even nasopharyngeal cancer. High concentrations of formalin are toxic to the nervous system, immune system, liver, and other organs.

[0003] For clinical medical staff, in their daily work, such as soaking and inspecting patient tissue specimens, they will be exposed to such hazardous chemicals at low doses due to sealing problems between the suction equipment and the plastic containers, which can easily pose a threat to their own health. Utility Model Content

[0004] In view of this, the utility model provides a liquid hazardous chemical suction device to solve the problem that the formalin container has poor sealing during use or after use, and the formalin liquid easily evaporates into the air, affecting the health of medical staff.

[0005] The utility model provides a device for sucking liquid hazardous chemicals, comprising:

[0006] a sealing seat comprising an inner cavity and a first inlet and a first outlet located at opposite ends of the inner cavity, and further comprising a sealing member movably disposed in the inner cavity via an elastic member, the sealing member being adapted to reciprocate between a sealing position and a conducting position, wherein when the sealing member is in the sealing position, the sealing member blocks the first outlet, and when the sealing member is in the conducting position, the first inlet, the inner cavity, and the first outlet are in communication;

[0007] The suction head is detachably mounted on the sealing seat and includes a liquid pipeline, a pressing member and a liquid pump arranged on the liquid pipeline. When the suction head is mounted on the sealing seat, the pressing member abuts against the sealing member and pushes the sealing member to move from the sealing position to the conducting position.

[0008] Optionally, a top plate is provided on the top of the sealing seat, and a through hole is provided in the center of the top plate, and the through hole forms the first outlet. The top surface size of the sealing member is larger than the radial size of the through hole, and the sealing member is suitable for moving to the top surface and abutting against the top plate and sealing the through hole under the elastic force of the elastic member; the radial size of the through hole is larger than the radial size of the pressing member, and when the suction head and the sealing seat are installed, the pressing member is suitable for extending into the through hole and pressing the sealing member to move in a direction away from the top plate.

[0009] Optionally, a guide wall is provided in the inner cavity to cooperate with the guide of the sealing member, and a liquid cavity is formed between the guide wall and the side wall of the sealing seat. A liquid hole is provided on the guide wall, and the liquid hole is suitable for connecting the liquid cavity and the first outlet, and the liquid cavity is connected to the first inlet.

[0010] Optionally, the sealing seat is provided with a bottom plate, the bottom of the bottom plate is provided with the first inlet, the first inlet and the top of the bottom plate are provided with a plurality of liquid passages, the liquid passages connecting the first inlet and the liquid chamber.

[0011] Optionally, the elastic member is a spring pre-pressed between the sealing member and the top of the base plate.

[0012] Optionally, a bellows is provided between the bottom edge of the sealing member and the bottom edge of the bottom plate.

[0013] Optionally, a mounting wall is provided at the bottom of the sealing seat, and an inner wall of the mounting wall is provided with a first internal thread that cooperates with the external thread of the bottle mouth of the liquid hazardous chemical container.

[0014] Optionally, the outer wall of the sealing seat is provided with a first external thread, the bottom of the suction head is provided with a connecting wall, and the inner wall of the connecting wall is provided with a second internal thread that cooperates with the first external thread of the sealing seat.

[0015] Optionally, an adjustment button is provided on the top of the suction head, and the adjustment button is used to adjust the output power of the liquid pump.

[0016] Beneficial effects:

[0017] The liquid hazardous chemical suction device provided by the present invention includes: a sealing seat and a suction head. The sealing seat includes an inner cavity and a first inlet and a first outlet located at opposite ends of the inner cavity, and also includes a sealing member movably arranged in the inner cavity by an elastic member, and the sealing member is suitable for reciprocating between a sealing position and a conducting position. When the sealing member is in the sealing position, the sealing member blocks the first outlet. When the sealing member is in the conducting position, the first inlet, the inner cavity and the first outlet are connected. The suction head and the sealing seat are detachably mounted, and include a liquid pipeline, a pressing member and a liquid pump arranged on the liquid pipeline. When the suction head and the sealing seat are mounted, the pressing member abuts against the sealing member and pushes the sealing member to move from the sealing position to the conducting position.

[0018] The sealing seat can be directly installed on the opening of the liquid hazardous chemical container, thereby sealing the opening of the liquid hazardous chemical container. The hose of the first inlet extends into the liquid hazardous chemical container to facilitate the suction of the liquid hazardous chemicals. Specifically, the sealing seat is connected to the opening of the liquid hazardous chemical container through the first inlet. The inner cavity of the sealing seat has a sealing member that moves back and forth between a sealing position and a conducting position. When the sealing member is in the sealing position, the first outlet can be blocked, thereby preventing the liquid hazardous chemicals in the liquid hazardous chemical container from volatilizing into the surrounding air. When the liquid hazardous chemical is a formalin solution, the formalin can be prevented from being released into the air, preventing medical staff from continuous contact with the formalin solution, thereby ensuring the safety of medical staff. The suction head can be installed on the sealing seat, and the suction head and the sealing seat are also sealed. The pressing part can push the seal to the conduction position. At this time, the liquid pipeline, the first outlet, the inner cavity and the first inlet are connected to the interior of the liquid hazardous chemicals. The liquid pump can provide power to facilitate the liquid pipeline to suck out the liquid hazardous chemicals through the first outlet, the inner cavity, the first inlet and the hose. When the suction head needs to be replaced or removed, the suction head can be removed from the mounting seat. The elastic part in the mounting seat pushes the seal to the sealing position through elastic force, thereby blocking the first outlet and preventing the liquid hazardous chemicals in the liquid hazardous chemicals container from volatilizing.

[0019] The liquid hazardous chemical suction device provided in the present application prevents liquid hazardous chemicals from evaporating from the bottle mouth of the liquid hazardous chemical container through the sealing effect of the sealing seat and the suction head, thereby ensuring the safety of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1This is a schematic structural diagram of a liquid hazardous chemical suction device in an embodiment of the present utility model;

[0022] Figure 2 This is a structural reference diagram of the installation state of the sealing seat and the suction head in an embodiment of the present utility model.

[0023] Description of reference numerals:

[0024] 1. Sealing seat; 101. First inlet; 102. First outlet; 103. Hose; 11. Top plate; 12. Bottom plate; 131. Guide wall; 132. Liquid chamber; 133. Liquid hole; 134. Liquid channel; 141. Mounting wall; 142. First internal thread; 151. First external thread; 2. Sealing member; 3. Elastic member; 4. Suction head; 41. Pressing member; 42. Connecting wall; 421. Second internal thread. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0026] like Figure 1 and Figure 2 As shown, this embodiment provides a liquid hazardous chemical suction device, including: a sealing seat 1 and a suction head 4.

[0027] The sealing seat 1 includes an inner cavity and a first inlet 101 and a first outlet 102 located at opposite ends of the inner cavity. It also includes a sealing member 2 movably arranged in the inner cavity through an elastic member 3. The sealing member 2 is suitable for reciprocating between a sealing position and a conducting position. When the sealing member 2 is in the sealing position, the sealing member 2 blocks the first outlet 102. When the sealing member 2 is in the conducting position, the first inlet 101, the inner cavity and the first outlet 102 are connected.

[0028] The suction head 4 and the sealing seat 1 are detachably installed, and include a liquid pipeline, a pressing member 41 and a liquid pump arranged on the liquid pipeline. When the suction head 4 and the sealing seat 1 are installed, the pressing member 41 abuts against the sealing member 2 and pushes the sealing member 2 to move from the sealing position to the conducting position.

[0029] The sealing seat 1 can be directly installed on the opening of the liquid hazardous chemical container, thereby sealing the opening of the liquid hazardous chemical container. The hose 103 of the first inlet 101 extends into the liquid hazardous chemical container to facilitate the suction of the liquid hazardous chemical. Specifically, the sealing seat 1 is connected to the opening of the liquid hazardous chemical container through the first inlet 101. The inner cavity of the sealing seat 1 has a sealing member 2 that moves back and forth between a sealing position and a conducting position. The sealing member 2 can block the first outlet 102 when in the sealing position. Since the liquid hazardous chemical can only flow out from the first outlet 102 after the sealing seat 1 is installed on the opening of the liquid hazardous chemical container, blocking the first outlet 102 can prevent the liquid hazardous chemical in the liquid hazardous chemical container from volatilizing into the surrounding air. When the liquid hazardous chemical is a formalin solution, the formalin can be prevented from being released into the air, preventing medical staff from continuous contact with the formalin solution, thereby ensuring the safety of medical staff. Liquid hazardous chemicals can also be alcohol, glutaraldehyde, etc.

[0030] The suction head 4 can be installed on the sealing seat 1, and the suction head 4 and the sealing seat 1 are also sealed. The pressing part 41 can push the seal 2 to the conduction position. At this time, the liquid pipeline, the first outlet 102, the inner cavity and the first inlet 101 are connected to the interior of the liquid hazardous chemicals. The liquid pump can provide power to facilitate the liquid pipeline to suck out the liquid hazardous chemicals through the first outlet 102, the inner cavity, the first inlet 101 and the hose 103. When the suction head 4 needs to be replaced or removed, the suction head 4 can be removed from the sealing seat 1. The elastic part 3 in the sealing seat 1 pushes the seal 2 to the sealing position through elastic force, thereby blocking the first outlet 102 to prevent the liquid hazardous chemicals in the liquid hazardous chemicals container from volatilizing.

[0031] The liquid hazardous chemical suction device provided in the present application prevents the liquid hazardous chemicals from volatilizing from the bottle mouth of the liquid hazardous chemical container through the sealing effect of the sealing seat 1 and the suction head 4, thereby ensuring the safety of medical staff.

[0032] like Figure 1 As shown, a top plate 11 is provided on top of the sealing seat 1. A through hole is formed in the center of the top plate 11, forming a first outlet 102. The top surface of the sealing member 2 is larger than the radial dimension of the through hole. Under the elastic force of the elastic member 3, the sealing member 2 is adapted to move until its top surface abuts the top plate and seals the through hole. The top plate 11 is a flat plate. The through hole in the center of the top plate 11 can be circular. The sealing member 2 can be cylindrical in shape. The top and bottom surfaces of the sealing member 2 are circular. The top surface of the sealing member 2 can abut against the bottom surface of the top plate 11, thereby sealing the through hole, and thus, the first outlet 102.

[0033] The radial dimension of the through-hole is greater than that of the pressing member 41. When the suction head 4 is installed on the sealing seat 1, the pressing member 41 is adapted to extend into the through-hole and press the sealing member 2 away from the top plate 11. The pressing member 41 may be a cylinder, the inner cavity of which forms part of the liquid passage. The sidewall of the cylinder is provided with a plurality of holes to facilitate the flow of liquid hazardous chemicals from the first outlet 102 into the liquid passage. The bottom of the cylinder is configured to contact the sealing member 2 and press the sealing member 2 away from the opening 102, thereby facilitating communication between the first outlet 102 and the inner cavity.

[0034] like Figure 1 and Figure 2 As shown, in this embodiment, a guide wall 131 is provided in the inner cavity to guide and cooperate with the seal 2. A liquid passage cavity 132 is formed between the guide wall 131 and the side wall of the sealing seat 1. A liquid passage hole 133 is provided on the guide wall 131. The liquid passage hole 133 is adapted to connect the liquid passage 132 and the first outlet 102, and the liquid passage cavity 132 is connected to the first inlet 101. When the seal 2 is in the conducting position, liquid can enter the liquid channel of the suction head 4 through the first inlet 101, the liquid passage cavity 132, the liquid passage hole 133, and the first outlet 102. The guide wall 131 can be cylindrical, and the cylindrical shape of the seal 2 facilitates the sliding of the seal 2 by abutting the inner wall of the guide wall 131 with its own side wall, ensuring that the seal 2 can accurately move to the blocking position. Moreover, the side wall of the seal 2 fits with the inner wall of the guide wall 131. When the seal 2 moves to the blocking position, the side wall of the seal 2 can block the liquid hole 133, so that the seal 2 can block both the first outlet 102 and the liquid hole 133, forming two seals on the adjacent two sides of the seal 2, thereby further improving the sealing performance of the sealing seat 1.

[0035] like Figure 1 and Figure 2 As shown, in this embodiment, the sealing seat 1 is provided with a bottom plate 12, and a first inlet 101 is opened at the bottom of the bottom plate 12. A plurality of liquid passages 134 are provided between the first inlet 101 and the top of the bottom plate 12. The liquid passages 134 connect the first inlet 101 and the liquid passage cavity 132. The cross-sectional shape of the liquid passage cavity 132 is annular. The plurality of liquid passages 134 are evenly distributed at the bottom of the liquid passage cavity 132. Liquid hazardous chemicals enter the plurality of liquid passages 134 respectively from the first inlet 101, and then enter the liquid passage cavity 132.

[0036] like Figure 1 and Figure 2 As shown, in this embodiment, the elastic member 3 is a spring pre-pressed between the sealing member 2 and the top of the bottom plate 12 .

[0037] like Figure 1 and Figure 2As shown, in this embodiment, a bellows 31 is provided between the bottom edge of the seal 2 and the bottom edge of the bottom plate 12. The bellows 31 can isolate the elastic member 3 from the outside, prevent water vapor from contacting the elastic member 3, and prevent the elastic member 3 from being corroded.

[0038] like Figure 1 and Figure 2 As shown, in this embodiment, a mounting wall 141 is provided at the bottom of the sealing seat 1, and the inner wall of the mounting wall 141 is provided with a first internal thread 142 that cooperates with the external thread of the bottle mouth of the liquid hazardous chemical container. The sealing seat 1 can be installed on the bottle mouth of the liquid hazardous chemical container through the mounting wall 141 and the first internal thread 142, thereby sealing the bottle mouth of the liquid hazardous chemical container.

[0039] like Figure 1 and Figure 2 As shown, in this embodiment, the outer wall of the sealing seat 1 is provided with a first external thread 151, the bottom of the suction head 4 is provided with a connecting wall 42, and the inner wall of the connecting wall 42 is provided with a second internal thread 421 that cooperates with the first external thread 151 of the sealing seat 1. The suction head 4 can be installed on the sealing seat 1 through the cooperation of the connecting wall 42 and the second internal thread 421 with the first external thread 151, thereby sealing the gap between the suction head 4 and the sealing seat 1.

[0040] like Figure 1 and Figure 2 As shown, in this embodiment, an adjustment button is provided on the top of the suction head 4, and a circuit board connected to the liquid pump is provided inside the suction head 4. The adjustment button is electrically connected to the circuit board, and the adjustment button is used to adjust the output power of the liquid pump. Medical personnel can adjust the output power of the liquid pump through the adjustment button, thereby controlling the flow rate of liquid hazardous chemicals, so as to meet the suction needs of large doses of liquid hazardous chemicals and small doses of liquid hazardous chemicals.

[0041] In this embodiment, the suction head 4 includes a power supply unit that provides power to the liquid pump, circuit board, and adjustment buttons. The power supply unit contains a storage battery that can be charged via a charging port. When the power supply unit needs to be charged, the suction head 4 can be removed from the sealing base 1. The sealing member 2 of the sealing base 1 can then block the first outlet 102, eliminating the risk of hazardous liquids escaping from the first outlet 102.

[0042] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A liquid hazardous chemical suction device, characterized in that: include: A sealing seat (1) comprises an inner cavity and a first inlet (101) and a first outlet (102) located at opposite ends of the inner cavity, and further comprises a sealing member (2) movably arranged in the inner cavity via an elastic member (3), wherein the sealing member (2) is adapted to reciprocate between a sealing position and a conducting position, wherein when the sealing member (2) is located at the sealing position, the sealing member (2) blocks the first outlet (102), and when the sealing member (2) is located at the conducting position, the first inlet (101), the inner cavity and the first outlet (102) are connected, and the first inlet (101) is provided with a hose (103), wherein the hose (103) is adapted to extend into a liquid hazardous chemical container; The suction head (4) is detachably mounted on the sealing seat (1), and comprises a liquid pipeline, a pressing member (41), and a liquid pump arranged on the liquid pipeline. When the suction head (4) is mounted on the sealing seat (1), the pressing member (41) abuts against the sealing member (2) and pushes the sealing member (2) to move from the sealing position to the conducting position.

2. The liquid hazardous chemical suction device according to claim 1, characterized in that: A top plate (11) is provided on the top of the sealing seat (1), and a through hole is provided in the center of the top plate (11), and the through hole forms the first outlet (102). The top surface size of the sealing member (2) is larger than the radial size of the through hole, and the sealing member (2) is suitable for moving to the top surface under the elastic force of the elastic member (3) to abut against the top plate (11) and block the through hole; the radial size of the through hole is larger than the radial size of the pressing member (41), and when the suction head (4) and the sealing seat (1) are installed, the pressing member (41) is suitable for extending into the through hole and pressing the sealing member (2) to move in a direction away from the top plate (11).

3. The liquid hazardous chemical suction device according to claim 2, characterized in that: A guide wall is provided in the inner cavity for guiding and cooperating with the sealing member (2), a liquid passage cavity (132) is formed between the guide wall and the side wall of the sealing seat (1), a liquid passage hole (133) is provided on the guide wall, and the liquid passage hole (133) is suitable for connecting the liquid passage cavity (132) and the first outlet (102), and the liquid passage cavity (132) is connected to the first inlet (101).

4. The liquid hazardous chemical suction device according to claim 3, characterized in that: The sealing seat (1) is provided with a bottom plate (12), the bottom of the bottom plate (12) is provided with the first inlet (101), the first inlet (101) and the top of the bottom plate (12) are provided with a plurality of liquid passages (134), the liquid passages (134) communicating with the first inlet (101) and the liquid passage cavity (132).

5. The liquid hazardous chemical suction device according to claim 4, characterized in that: The elastic member (3) is a spring pre-pressed between the sealing member (2) and the top of the bottom plate (12).

6. The liquid hazardous chemical suction device according to claim 4, characterized in that: A bellows is provided between the bottom edge of the sealing member (2) and the bottom edge of the bottom plate (12).

7. The liquid hazardous chemical suction device according to claim 1, characterized in that: The bottom of the sealing seat (1) is provided with a mounting wall (141), and the inner wall of the mounting wall (141) is provided with a first internal thread (142) that cooperates with the external thread of the bottle mouth of the liquid hazardous chemical container.

8. The liquid hazardous chemical suction device according to claim 1, characterized in that: The outer wall of the sealing seat (1) is provided with a first external thread (151), the bottom of the suction head (4) is provided with a connecting wall (42), and the inner wall of the connecting wall (42) is provided with a second internal thread (421) that cooperates with the first external thread (151) of the sealing seat (1).

9. The liquid hazardous chemical suction device according to claim 1, characterized in that: An adjustment button is provided on the top of the suction head (4), and the adjustment button is used to adjust the output power of the liquid pump.

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