Liquid chromatograph mobile phase waste liquid anti-overflow device

Abstract

The utility model relates to the technical field of liquid chromatograph mobile phase waste liquid overflow prevention, and discloses a liquid chromatograph mobile phase waste liquid overflow prevention device which comprises a waste liquid collecting bottle, a waste liquid input pipe, an overflow liquid collecting bottle and a communicating pipe. The switch assembly comprises an anti-corrosion floating ball, an anti-corrosion fixing plate, a first rotating shaft seat, a first rotating rod, a second rotating rod, a vertical guide block, a sliding plate, a second rotating shaft seat, a fixing convex block, a connecting round rod and a rotating block, the anti-corrosion fixing plate is fixedly installed at the upper end of the right inner wall of the waste liquid collecting bottle, and the first rotating shaft seat is fixedly installed in the middle of the upper end of the left side face of the anti-corrosion fixing plate; the upper end of the first rotating rod is rotationally connected into the first rotating shaft seat, the right end of the connecting round rod is fixedly connected to the lower end of the left side face of the first rotating rod, and the anti-corrosion floating ball is fixedly installed at the left end of the connecting round rod. According to the utility model, waste liquid can be prevented from overflowing to pollute the environment.

Description

Technical Field

[0001] The utility model relates to the technical field of preventing overflow of mobile phase waste liquid of a liquid chromatograph, in particular to a device for preventing overflow of mobile phase waste liquid of a liquid chromatograph. Background Art

[0002] Liquid chromatography uses liquid as the mobile phase and usually uses various organic reagents. It is the most commonly used detection method in the fields of chemical, biological, and pharmaceutical testing. When the liquid chromatograph is working, it involves the discharge of waste liquid. Since the waste liquid of the liquid chromatograph is harmful to the environment and organisms, it is necessary to collect the waste liquid in a waste liquid bottle when using it.

[0003] The existing waste liquid bottle of liquid chromatograph usually has a relatively simple structure, and in actual use, it can only receive and store waste liquid. Since the waste liquid is automatically discharged into the waste liquid bottle through a fully enclosed system during the operation of the chromatograph, when the waste liquid in the waste liquid bottle reaches the upper limit, if the operator cannot find and deal with it in time, it will cause the waste liquid to overflow from the waste liquid bottle, causing pollution. Therefore, how to effectively prevent the overflow of waste liquid in the waste liquid bottle of liquid chromatograph is a problem worth studying at present.

[0004] Therefore, we propose a device for preventing waste liquid from mobile phase overflow in a liquid chromatograph. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a device for preventing overflow of mobile phase waste liquid of a liquid chromatograph.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a liquid chromatograph mobile phase waste liquid overflow prevention device, comprising a waste liquid collection bottle, a waste liquid input pipe, an overflow collection bottle and a connecting pipe; the waste liquid collection bottle is provided with a switch assembly for preventing waste liquid from overflowing; the switch assembly comprises an anti-corrosion float, an anti-corrosion fixed plate, a first rotating shaft seat, a first rotating rod, a second rotating rod, a vertical guide block, a sliding plate, a second rotating shaft seat, a fixed protrusion, a connecting round rod and a rotating block; the anti-corrosion fixed plate is fixedly installed on the upper end of the right inner wall of the waste liquid collection bottle, the first rotating shaft seat is fixedly installed in the middle of the upper end of the left side surface of the anti-corrosion fixed plate, and the upper end of the first rotating rod is rotatably connected to the first rotating shaft seat. In the axle seat, the right end of the connecting round rod is fixedly connected to the lower end of the left side surface of the first rotating rod, the anti-corrosion float is fixedly installed on the left end of the connecting round rod, the front and rear sides of the lower end of the first rotating rod are respectively fixedly connected with fixed protrusions, the outer walls of the two fixed protrusions are respectively rotatably connected with rotating blocks, the front and rear ends of the top of the second rotating rod are respectively fixedly connected to the bottoms of the two rotating blocks, the upper end of the second rotating rod is U-shaped, and the lower end of the second rotating rod is rotatably connected to the second rotating shaft seat, the second rotating shaft seat is fixedly installed in the middle of the upper end of the left side surface of the sliding plate, the front and rear ends of the sliding plate are respectively slidably connected to the two vertical guide blocks, and the two vertical guide blocks are respectively fixedly installed on the front and rear ends of the left side of the anti-corrosion fixed plate.

[0007] Furthermore, a waste liquid through hole is opened at the lower end of the anti-corrosion fixing plate and runs through from left to right.

[0008] Furthermore, a connecting pipe is provided at the upper end of the right side wall of the waste liquid collecting bottle, and the left end of the connecting pipe corresponds to the waste liquid through hole.

[0009] Furthermore, a protection box is provided on the right side of the waste liquid collection bottle, and a placement pad is fixedly installed on the bottom inner wall of the protection box.

[0010] Furthermore, a pressure sensor is fixedly installed inside the placement pad.

[0011] Furthermore, a connecting wire is fixedly connected to the right end of the pressure sensor, and a pressure alarm is fixedly installed on the upper end of the right side wall of the protection box.

[0012] Furthermore, the other end of the connecting wire is fixedly connected to the pressure alarm, and the pressure alarm is electrically connected to the pressure sensor.

[0013] Furthermore, an overflow collection bottle is arranged on the top of the placement pad.

[0014] Furthermore, the right end of the connecting pipe passes through the left side surface of the protection box and is connected to the overflow collection bottle.

[0015] Beneficial Effects

[0016] The utility model provides a liquid chromatograph mobile phase waste liquid overflow prevention device, which has the following beneficial effects:

[0017] 1. A liquid chromatograph mobile phase waste liquid overflow prevention device. When in use, the liquid chromatograph mobile phase waste liquid enters the inner cavity of the waste liquid collecting bottle from the waste liquid inlet pipe, and through the set switch component, when the liquid level of the waste liquid gradually rises to the position of the anti-corrosion float, the anti-corrosion float will rise due to buoyancy as the liquid level rises, and the rise of the anti-corrosion float drives the first rotating rod to rotate upward, and the second rotating rod is rotatably connected to the first rotating rod, the first rotating rod drives the second rotating rod to rotate upward, and the second rotating rod drives the sliding plate to move upward along the vertical guide block. As the sliding plate moves upward, the waste liquid through hole and the left end of the connecting pipe are in a connected state. At this time, the waste liquid in the waste liquid collecting bottle will flow from the waste liquid through hole through the connecting pipe into the overflow collecting bottle, thereby achieving the purpose of preventing waste liquid from overflowing, and preventing waste liquid from overflowing and polluting the environment.

[0018] 2. A liquid chromatograph mobile phase waste liquid overflow prevention device, through the mutual cooperation between the overflow collection bottle, connecting pipe, pressure alarm, connecting wires, mounting pads, pressure sensors and other components, firstly, the parameters of the pressure sensor are set, and the overflow collection bottle is placed on the top of the mounting pad. As the overflowed waste liquid enters the overflow collection bottle, the weight of the overflow collection bottle will increase. When the weight of the overflow collection bottle increases to exceed the pressure parameter set by the pressure sensor, the pressure sensor will transmit the signal to the pressure alarm through the connecting wires, causing the pressure alarm to sound an alarm, thereby achieving the purpose of reminding the staff.

[0019] 3. A liquid chromatograph mobile phase waste liquid overflow prevention device, through the mutual cooperation between the overflow collection bottle, protection box, placement pad, pressure sensor and other components, the overflow collection bottle, placement pad, pressure sensor are all arranged inside the protection box, which can prevent the pressure sensor from being pressurized by external factors and causing the pressure alarm to sound an alarm, thereby improving the accuracy of the alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the utility model can be implemented, so they have no substantial technical significance.

[0021] Figure 1 It is a schematic diagram of the overall structure;

[0022] Figure 2 is a schematic diagram of the switch assembly structure;

[0023] Figure 3 for Figure 2Enlarged view of point A in the middle;

[0024] Figure 4 This is a schematic diagram of the anti-corrosion fixed plate structure.

[0025] Legend:

[0026] 1. Waste liquid collection bottle; 2. Waste liquid input pipe; 3. Overflow collection bottle; 4. Connecting pipe; 5. Pressure alarm; 6. Connecting wires; 7. Protective box; 8. Placement pad; 9. Pressure sensor; 101. Anti-corrosion float; 102. Anti-corrosion fixing plate; 103. First rotating shaft seat; 104. First rotating rod; 105. Second rotating rod; 106. Vertical guide block; 107. Sliding plate; 108. Second rotating shaft seat; 109. Fixed protrusion; 110. Connecting round rod; 111. Rotating block; 11. Waste liquid through hole. DETAILED DESCRIPTION

[0027] A liquid chromatograph mobile phase waste liquid overflow prevention device, such as Figure 1-4As shown, a waste liquid collection bottle 1, a waste liquid input pipe 2, an overflow collection bottle 3 and a connecting pipe 4, the waste liquid collection bottle 1 is provided with a switch assembly for preventing waste liquid from overflowing, the switch assembly includes an anti-corrosion float 101, an anti-corrosion fixed plate 102, a first rotating shaft seat 103, a first rotating rod 104, a second rotating rod 105, a vertical guide block 106, a sliding plate 107, a second rotating shaft seat 108, a fixed protrusion 109, a connecting round rod 110 and a rotating block 111, the anti-corrosion fixed plate 102 is fixedly installed on the upper end of the right inner wall of the waste liquid collection bottle 1, the first rotating shaft seat 103 is fixedly installed in the middle of the upper end of the left side surface of the anti-corrosion fixed plate 102, the upper end of the first rotating rod 104 is rotatably connected to the first rotating shaft seat 103, and the right end of the connecting round rod 110 The anti-corrosion float 101 is fixedly connected to the lower end of the left side of the first rotating rod 104, and the anti-corrosion float 101 is fixedly installed at the left end of the connecting round rod 110. The front and rear sides of the lower end of the first rotating rod 104 are respectively fixedly connected with fixed protrusions 109, and the outer walls of the two fixed protrusions 109 are respectively rotatably connected with rotating blocks 111. The front and rear ends of the top of the second rotating rod 105 are respectively fixedly connected to the bottoms of the two rotating blocks 111. The upper end of the second rotating rod 105 is U-shaped, and the lower end of the second rotating rod 105 is rotatably connected to the second rotating shaft seat 108. The second rotating shaft seat 108 is fixedly installed in the middle of the upper end of the left side of the sliding plate 107. The front and rear ends of the sliding plate 107 are respectively slidably connected to the two vertical guide blocks 106, and the two vertical guide blocks 106 are respectively fixedly installed in the anti-corrosion float 101. The left side front and rear ends of the anti-corrosion fixing plate 102 and the lower end of the anti-corrosion fixing plate 102 are provided with a waste liquid through hole 11 that runs through the left and right sides. The upper end of the right side wall of the waste liquid collecting bottle 1 is connected with a connecting pipe 4, and the left end of the connecting pipe 4 corresponds to the waste liquid through hole 11. When in use, the mobile phase waste liquid of the liquid chromatograph enters the inner cavity of the waste liquid collecting bottle 1 from the waste liquid input pipe 2. Through the set switch component, when the liquid level of the waste liquid gradually rises to the position of the anti-corrosion float 101, the anti-corrosion float 101 will rise due to the buoyancy as the liquid level rises. The rise of the anti-corrosion float 101 drives the first rotating rod 104 to rotate upward, and the second rotating rod 105 is rotatably connected to the first rotating rod 104. The first rotating rod 104 drives the second rotating rod 105 to rotate upward, and the second rotating rod 1 05 drives the sliding plate 107 to move upward along the vertical guide block 106. As the sliding plate 107 moves upward, the waste liquid through hole 11 and the left end of the connecting pipe 4 are in a connected state. At this time, the waste liquid in the waste liquid collecting bottle 1 will flow from the waste liquid through hole 11 through the connecting pipe 4 into the overflow collecting bottle 3, thereby achieving the purpose of preventing the waste liquid from overflowing and preventing the waste liquid from overflowing and causing pollution to the environment. A protective box 7 is arranged on the right side of the waste liquid collecting bottle 1. A placement pad 8 is fixedly installed on the bottom inner wall of the protective box 7. A pressure sensor 9 is fixedly installed inside the placement pad 8. A connecting wire 6 is fixedly connected to the right end of the pressure sensor 9. A pressure alarm 5 is fixedly installed on the upper end of the right side wall of the protective box 7. The other end of the connecting wire 6 is fixedly connected to the pressure alarm 5.The pressure alarm 5 is electrically connected to the pressure sensor 9. The top of the placement pad 8 is provided with an overflow collection bottle 3. The right end of the connecting pipe 4 passes through the left side of the protection box 7 and is connected to the overflow collection bottle 3. Through the cooperation between the overflow collection bottle 3, the connecting pipe 4, the pressure alarm 5, the connecting wire 6, the placement pad 8, the pressure sensor 9 and other components, the parameters of the pressure sensor 9 are first set, and the overflow collection bottle 3 is placed on the top of the placement pad 8. As the overflowed waste liquid enters the overflow collection bottle 3, the weight of the overflow collection bottle 3 will increase. When the weight of the overflow collection bottle 3 increases to exceed the pressure parameter set by the pressure sensor 9, the pressure sensor 9 will transmit the signal to the pressure alarm 5 through the connecting wire 6, so that the pressure alarm 5 will sound an alarm, thereby achieving the purpose of reminding the staff.

[0028] The working principle of the utility model is as follows: when in use, the mobile phase waste liquid of the liquid chromatograph enters the inner cavity of the waste liquid collection bottle 1 from the waste liquid input pipe 2, and through the switch component that is set, when the liquid level of the waste liquid gradually rises to the position of the anti-corrosion float 101, the anti-corrosion float 101 will rise due to buoyancy as the liquid level rises, and the rise of the anti-corrosion float 101 drives the first rotating rod 104 to rotate upward, and the second rotating rod 105 is rotationally connected to the first rotating rod 104, the first rotating rod 104 drives the second rotating rod 105 to rotate upward, and the second rotating rod 105 drives the sliding plate 107 to move upward along the vertical guide block 106, and as the sliding plate 107 moves upward, the waste liquid through hole 11 is connected to the left end of the connecting pipe 4, and at this time, the waste liquid in the waste liquid collection bottle 1 will be discharged from the waste liquid The through hole 11 flows into the overflow collection bottle 3 through the connecting pipe 4, thereby achieving the purpose of preventing waste liquid from overflowing and preventing waste liquid from overflowing and causing pollution to the environment. Through the cooperation between the overflow collection bottle 3, connecting pipe 4, pressure alarm 5, connecting wires 6, placement pad 8, pressure sensor 9 and other components, the parameters of the pressure sensor 9 are first set, and the overflow collection bottle 3 is placed on the top of the placement pad 8. As the overflowed waste liquid enters the overflow collection bottle 3, the weight of the overflow collection bottle 3 will increase. When the weight of the overflow collection bottle 3 increases to exceed the pressure parameter set by the pressure sensor 9, the pressure sensor 9 will transmit the signal to the pressure alarm 5 through the connecting wire 6, causing the pressure alarm 5 to sound an alarm, thereby achieving the purpose of reminding the staff.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A liquid chromatograph mobile phase waste liquid overflow prevention device, comprising a waste liquid collection bottle (1), a waste liquid input pipe (2), an overflow liquid collection bottle (3) and a connecting pipe (4), characterized in that: The waste liquid collection bottle (1) is provided with a switch assembly for preventing waste liquid from overflowing, the switch assembly comprising an anti-corrosion float (101), an anti-corrosion fixing plate (102), a first rotating shaft seat (103), a first rotating rod (104), a second rotating rod (105), a vertical guide block (106), a sliding plate (107), a second rotating shaft seat (108), a fixing protrusion (109), a connecting round rod (110) and a rotating block (111), the anti-corrosion fixing plate (102) is fixedly mounted on the upper end of the right inner wall of the waste liquid collection bottle (1), the first rotating shaft seat (103) is fixedly mounted in the middle of the upper end of the left side surface of the anti-corrosion fixing plate (102), the upper end of the first rotating rod (104) is rotatably connected to the first rotating shaft seat (103), the right end of the connecting round rod (110) is fixedly connected to the lower end of the left side surface of the first rotating rod (104), The anti-corrosion floating ball (101) is fixedly installed on the left end of the connecting round rod (110), the front and rear sides of the lower end of the first rotating rod (104) are respectively fixedly connected with fixed protrusions (109), the outer walls of the two fixed protrusions (109) are respectively rotatably connected with rotating blocks (111), the front and rear ends of the top of the second rotating rod (105) are respectively fixedly connected to the bottoms of the two rotating blocks (111), the upper end of the second rotating rod (105) is U-shaped, and the lower end of the second rotating rod (105) is rotatably connected to the second rotating shaft seat (108), the second rotating shaft seat (108) is fixedly installed in the middle of the upper end of the left side surface of the sliding plate (107), the front and rear ends of the sliding plate (107) are respectively slidably connected to the two vertical guide blocks (106), and the two vertical guide blocks (106) are respectively fixedly installed on the front and rear ends of the left side surface of the anti-corrosion fixed plate (102).

2. A liquid chromatograph mobile phase waste liquid overflow prevention device according to claim 1, characterized in that: A waste liquid through hole (11) is formed at the lower end of the anti-corrosion fixing plate (102) and runs through the lower end.

3. A liquid chromatograph mobile phase waste liquid overflow prevention device according to claim 1, characterized in that: A connecting pipe (4) is provided at the upper end of the right side wall of the waste liquid collection bottle (1), and the left end of the connecting pipe (4) corresponds to the waste liquid through hole (11).

4. A liquid chromatograph mobile phase waste liquid overflow prevention device according to claim 3, characterized in that: A protection box (7) is arranged on the right side of the waste liquid collection bottle (1), a placement pad (8) is fixedly installed on the inner wall of the bottom of the protection box (7), and a pressure sensor (9) is fixedly installed inside the placement pad (8).

5. A liquid chromatograph mobile phase waste liquid overflow prevention device according to claim 4, characterized in that: The right end of the pressure sensor (9) is fixedly connected to a connecting wire (6), and the upper end of the right side wall of the protection box (7) is fixedly installed with a pressure alarm (5).

6. A liquid chromatograph mobile phase waste liquid overflow prevention device according to claim 5, characterized in that: The other end of the connecting wire (6) is fixedly connected to the pressure alarm (5), and the pressure alarm (5) is electrically connected to the pressure sensor (9).

7. A liquid chromatograph mobile phase waste liquid overflow prevention device according to claim 4, characterized in that: An overflow collection bottle (3) is arranged on the top of the placement pad (8), and the right end of the connecting pipe (4) passes through the left side surface of the protection box (7) and is connected to the overflow collection bottle (3).

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