Water-seal-free sealing device for drainage of laboratory water tank

Abstract

The utility model provides a sealing device for drainage of a laboratory water tank without a water seal, and particularly relates to the technical field of sealing of drainage pipes of laboratory water tanks, which comprises a water tank, when the sealing device for drainage of the laboratory water tank without the water seal is not used, a spring is in a standing state; when drainage is needed, a sliding rod can be pulled upwards, and the sliding rod is connected with a second fixing plate through a threaded groove and a first threaded hole, so that the second fixing plate is driven to slide upwards, a spring is compressed, and the drainage effect is achieved. When water is drained, a filter screen can play a role in filtering, residues are stored in the filter screen, a pull rope directly pulls the pull rope to drain water, operation is more convenient, when the sealing gasket is oxidized, a sliding rod can be screwed, a threaded groove of the sliding rod is made to be separated from a first threaded hole, and therefore the sealing gasket can be separated from the sewer pipe, and the water in the water tank is drained. And the sliding rod can be taken down and replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to laboratory sink sewer pipe sealing technical field especially relates to a laboratory sink sewer water sealless sealing device. BACKGROUND

[0002] Laboratory sink is a device used for collecting, storing and treating laboratory wastewater in laboratory. Its main components include tank body, water seal device, overflow port and discharge port, etc. The tank body is used for storing wastewater and needs enough capacity to accommodate a large amount of wastewater; the water seal device prevents wastewater from flowing to the laboratory outside and prevents odor from spreading; the overflow port makes wastewater flow out when the wastewater level reaches a certain height; the discharge port is used to discharge the treated wastewater to the sewer or other treatment equipment. The commonly used device for preventing air return of drain pipe is to install a U-shaped pipe on the sewer pipe to seal by water seal, which has the disadvantage that the water in the U-shaped pipe will decrease and lose the sealing effect in a period of time without using water. SUMMARY

[0003] The utility model discloses a laboratory sink sewer water sealless sealing device to solve the problem that the commonly used device for preventing air return of drain pipe is to install a U-shaped pipe on the sewer pipe to seal by water seal, which has the disadvantage that the water in the U-shaped pipe will decrease and lose the sealing effect in a period of time without using water.

[0004] To achieve the above object, the utility model provides the following technical scheme: a laboratory sink sewer water sealless sealing device, including sink, the inner side of sink is fixedly connected with pull rope, one end of pull rope is fixedly connected with screw joint, the bottom of sink is fixedly connected with sewer pipe, the inner side of sewer pipe is provided with first fixed plate, the outer side of first fixed plate is integrally formed with first connecting block, the top of first fixed plate is slidingly penetrated and is connected with slide rod, one end of slide rod is provided with screw groove, the inner side of sewer pipe is provided with second fixed plate, the outer side of second fixed plate is integrally formed with second connecting block, the inner cavity side wall of sewer pipe is provided with sliding groove, the top of second fixed plate is provided with first screw hole, the top of second fixed plate is fixedly connected with spring, the outer side of slide rod is fixedly connected with filter screen, the outer side of slide rod is fixedly connected with fixed ring, the outer side of fixed ring is provided with clamping groove, the inner side of clamping groove is provided with sealing washer.

[0005] Preferably, one end of the slide rod is provided with a second screw hole, and the pull rope is connected with the slide rod through the screw joint and the second screw hole.

[0006] Preferably, the first fixed plate is fixedly connected with the sewer pipe through the first connecting block.

[0007] Preferably, the second fixed plate is connected with the sliding groove through a second connecting block, and the inner wall of the sliding groove is attached to the outer wall of the second connecting block.

[0008] Preferably, one end of the spring is fixedly connected to the bottom of the first fixed plate, and the spring is sleeved outside the sliding rod.

[0009] Preferably, the sliding rod is connected with the second fixed plate through a threaded groove and a first threaded hole.

[0010] Preferably, the outer wall of the sealing washer is tightly attached to the inner wall of the drain pipe.

[0011] Compared with the prior art, the sealing device for the laboratory sink drain without water seal has the advantages that when not in use, the spring is in a static state, and at this time, the outer wall of the sealing washer is tightly attached to the inner wall of the drain pipe, so that the sealing effect is achieved; when water needs to be drained, the sliding rod can be pulled upward, the sliding rod is connected with the second fixed plate through the threaded groove and the first threaded hole, so as to drive the second fixed plate to slide upward, and the second connecting block is limited by the sliding groove, so that the spring is compressed, the sealing washer is separated from the drain pipe, and the water in the sink is drained; when draining water, the filter screen can filter and store the residues; the pull rope is connected with the sliding rod through the threaded joint and the second threaded hole, so that the pull rope can be directly pulled to drain water, and the operation is more convenient; when the sealing washer is oxidized, the sliding rod can be twisted to make the threaded groove of the sliding rod separate from the first threaded hole, so that the sliding rod can be removed and replaced, and the operation is more convenient; and the outer wall of the sealing washer is tightly attached to the inner wall of the drain pipe, so that the reverse gas situation can be prevented. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic view of the utility model;

[0013] Figure 2 is a sectional structural schematic view of the utility model drain pipe;

[0014] Figure 3 is a structural schematic view of the utility model sliding rod and second fixed plate cooperation structure;

[0015] Figure 4 is a structural schematic view of the utility model card slot and sealing washer cooperation structure.

[0016] In the drawing: 1, sink; 2, pull rope; 3, threaded joint; 4, drain pipe; 5, first fixed plate; 6, first connecting block; 7, sliding rod; 8, threaded groove; 9, second fixed plate; 10, second connecting block; 11, sliding groove; 12, first threaded hole; 13, spring; 14, filter screen; 15, fixed ring; 16, card slot; 17, sealing washer; 18, second threaded hole. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0018] It should be understood that the structures, proportions, sizes and the like shown in the drawings of the specification are only used to understand and read the disclosed content by those skilled in the art, and are not used to limit the implementation conditions of the present application, and therefore do not have substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, which does not affect the effects and purposes that can be achieved by the present application, should still fall within the scope of the disclosed technical content.

[0019] Embodiment

[0020] Please refer to Figures 1-4The utility model relates to a sealing device about laboratory sink sewer water no water seal, including sink 1, the inside fixed connection of sink 1 has pull rope 2, and one end fixed connection of pull rope 2 has screw joint 3, and the bottom fixed connection of sink 1 has sewer pipe 4, and the inside of sewer pipe 4 is provided with first fixed plate 5, and the outside integrated of first fixed plate 5 has first connecting block 6, and the top sliding of first fixed plate 5 is connected with slide 7, and one end of slide 7 is provided with thread groove 8, and the inside of sewer pipe 4 is provided with second fixed plate 9, and the outside integrated of second fixed plate 9 has second connecting block 10, and the inner chamber lateral wall of sewer pipe 4 is provided with sliding slot 11, and the top of second fixed plate 9 is provided with first threaded hole 12, and the top fixed connection of second fixed plate 9 has spring 13, and the outside fixed connection of slide 7 has filter screen 14, and the outside fixed connection of slide 7 has fixed ring 15, and the outside of fixed ring 15 is provided with clamping groove 16, and the inside of clamping groove 16 is provided with sealing washer 17, when not using in the laboratory, spring 13 is in the state of rest, and the outer wall of sealing washer 17 and the inner wall of sewer pipe 4 are closely combined at this time, to reach the effect of sealing, then can pour water, and carry out the cleaning experimental apparatus, and when needing to drain, can pull up slide 7, and slide 7 is connected with second fixed plate 9 through thread groove 8 and first threaded hole 12, to drive second fixed plate 9 to slide up, and is limited through second connecting block 10 and sliding slot 11, to compress spring 13, so sealing washer 17 will separate from sewer pipe 4, to drain the water in sink 1, when draining, filter screen 14 can play the effect of filtering, and the residue is stored in filter screen 14, and pull rope 2 is connected with slide 7 through screw joint 3 and second threaded hole 18, so that pull rope 2 can be pulled directly to pour water, and it is more convenient to operate, when sealing washer 17 oxidizes, slide 7 can be removed by screwing slide 7, and is replaced, and it is more convenient to operate.

[0021] Further, one end of the slide 7 is provided with a second threaded hole 18, and the pull rope 2 is connected with the slide 7 through the screw joint 3 and the second threaded hole 18.

[0022] Further, the first fixed plate 5 is fixedly connected with the sewer pipe 4 through the first connecting block 6.

[0023] Further, the second fixed plate 9 is slidingly connected with the sliding slot 11 through the second connecting block 10, and the inner wall of the sliding slot 11 is in close contact with the outer wall of the second connecting block 10.

[0024] Further, one end of the spring 13 is fixedly connected to the bottom of the first fixed plate 5, and the spring 13 is sleeved on the outside of the slide 7.

[0025] Further, the slide 7 is connected with the second fixed plate 9 through the thread groove 8 and the first threaded hole 12.

[0026] Further, the outer wall of the sealing gasket 17 is tightly combined with the inner wall of the sewer pipe 4.

[0027] Working principle: when not in use, the spring 13 is in a static state, and at this time the outer wall of the sealing gasket 17 is tightly combined with the inner wall of the sewer pipe 4, thereby achieving the sealing effect, and when water needs to be drained, the slide rod 7 can be pulled upward, and the slide rod 7 is connected with the second fixed plate 9 through the threaded groove 8 and the first threaded hole 12, thereby driving the second fixed plate 9 to slide upward, and the second connecting block 10 is limited by the sliding groove 11, thereby compressing the spring 13, so that the sealing gasket 17 will be separated from the sewer pipe 4, thereby draining the water in the sink 1, and when draining water, the filter screen 14 can play a filtering effect and store the residues in the filter screen 14, and the pull rope 2 is connected with the slide rod 7 through the threaded joint 3 and the second threaded hole 18, so that the pull rope 2 can be directly pulled to drain water, which is more convenient to operate, and when the sealing gasket 17 is oxidized, the slide rod 7 can be removed and replaced by screwing the slide rod 7, so that the threaded groove 8 of the slide rod 7 is separated from the first threaded hole 12.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sealing device for a laboratory sink drain without water seal, comprising a sink (1), characterized in that: The inner side of the sink (1) is fixedly connected with a pull rope (2), one end of the pull rope (2) is fixedly connected with a threaded joint (3), the bottom of the sink (1) is fixedly connected with a drain pipe (4), the inner side of the drain pipe (4) is provided with a first fixed plate (5), the outer side of the first fixed plate (5) is integrally formed with a first connecting block (6), the top of the first fixed plate (5) is slidably penetrated and connected with a sliding rod (7), one end of the sliding rod (7) is provided with a threaded groove (8), the inner side of the drain pipe (4) is provided with a second fixed plate (9), the outer side of the second fixed plate (9) is integrally formed with a second connecting block (10), the inner cavity side wall of the drain pipe (4) is provided with a sliding groove (11), the top of the second fixed plate (9) is provided with a first threaded hole (12), the top of the second fixed plate (9) is fixedly connected with a spring (13), the outer side of the sliding rod (7) is fixedly connected with a filter screen (14), the outer side of the sliding rod (7) is fixedly connected with a fixed ring (15), the outer side of the fixed ring (15) is provided with a clamping groove (16), the inner side of the clamping groove (16) is sleeved with a sealing washer (17).

2. A seal for a sink drain according to claim 1, wherein: One end of the sliding rod (7) is provided with a second threaded hole (18), the pull rope (2) is connected with the sliding rod (7) through the threaded joint (3) and the second threaded hole (18).

3. A seal for a sink drain according to claim 1, wherein: The first fixed plate (5) is fixedly connected with the drain pipe (4) through the first connecting block (6).

4. The seal of claim 1, wherein: The second fixed plate (9) is slidably connected with the sliding groove (11) through the second connecting block (10), the inner wall of the sliding groove (11) is fitted with the outer wall of the second connecting block (10).

5. The seal of claim 1, wherein: One end of the spring (13) is fixedly connected to the bottom of the first fixed plate (5), and the spring (13) is sleeved on the outer side of the sliding rod (7).

6. The seal of claim 1, wherein: The sliding rod (7) is connected with the second fixed plate (9) through the threaded groove (8) and the first threaded hole (12).

7. The seal of claim 1, wherein: The outer wall of the sealing washer (17) is tightly fitted with the inner wall of the drain pipe (4).

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