Liquid buoyancy mechanical self-closing device

Abstract

The utility model relates to the field of liquid extraction devices, in particular to a liquid buoyancy mechanical self-closing device which comprises a suction pipe and a buoy, the suction pipe comprises a liquid suction pipe and a connecting pipe, one end of the liquid suction pipe is connected with a liquid container, and the other end of the liquid suction pipe extends into the liquid container and is detachably connected with the connecting pipe; a suction hole is formed in one end, far away from the liquid suction pipe, of the connecting pipe; the buoy is movably arranged along the length direction of the connecting pipe; and a sealing ring matched with the suction hole is arranged on the buoy. Through cooperation of the suction pipe and the buoy, when liquid in the liquid container needs to be extracted, the buoy can move downwards along the connecting pipe along with descending of the liquid level, and finally the suction hole is blocked through the sealing ring at the designated position, so that the situation that air is sucked in during extraction, and use of the extracted liquid is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the field of liquid extraction devices, in particular to a liquid buoyancy mechanical self-closing device. Background Art

[0002] During the extraction process of a tank that stores liquids such as liquid fuel, some pressurized gas is generally reserved inside the tank. When the suction pipe is passed through to extract the liquid, the internal liquid level cannot be visually observed, and excessive extraction may cause gas to be extracted, which will affect the use of the extracted liquid fuel. To ensure that the gas is not extracted, the extraction amount of the liquid can only be reduced, which will result in a certain amount of waste. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a liquid buoyancy mechanical self-closing device which can automatically close when a specified residual amount of liquid is extracted to avoid gas extraction.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a liquid buoyancy mechanical self-closing device, which is arranged in a liquid container, including a suction tube and a float, the suction tube includes a suction tube and a connecting tube, one end of the suction tube is connected to the liquid container, and the other end extends into the liquid container and is detachably connected to the connecting tube; a suction hole is provided at one end of the connecting tube away from the suction tube; the float is movably arranged along the length direction of the connecting tube; and a sealing ring matching the suction hole is provided on the float.

[0005] Furthermore, one end of the connecting tube away from the liquid suction tube protrudes circumferentially to form a boss structure, and a plurality of suction holes are provided on the boss structure.

[0006] Furthermore, the upper end surface of the boss structure is opposite to the lower end surface of the float; the upper end surface of the boss structure is provided with a suction hole, and the lower end surface of the float is provided with a sealing ring.

[0007] Furthermore, a suction hole is provided on the side of the boss structure; the sealing ring of the float can be fitted with the boss structure; and the inner wall of the sealing ring fits with the suction hole.

[0008] Furthermore, the suction hole protrudes from the surface of the connecting tube, and the sealing ring fits the surface of the connecting tube and the suction hole at the same time; a first sealing gap between the sealing ring and the surface of the connecting tube, a second sealing gap between the sealing ring and the side of the protruding suction hole, and a third sealing gap between the sealing ring and the end face of the suction hole are formed between the sealing ring and the connecting tube.

[0009] Furthermore, the float comprises a plurality of buoyancy units, and the plurality of buoyancy units are detachably combined.

[0010] Furthermore, a filling space is provided inside the buoyancy unit.

[0011] Furthermore, the connecting tube is movable along the length direction of the pipette.

[0012] Furthermore, the pipette is threadably connected to the connecting pipe.

[0013] Furthermore, a sealing cover is provided at one end of the pipette connected to the liquid container.

[0014] The beneficial effects of the utility model are: through the cooperation between the suction tube and the float, when it is necessary to extract liquid from the liquid container, as the liquid level drops, the float can move down along the connecting tube, and finally block the suction hole at the designated position through the sealing ring to avoid the intake of air during extraction, affecting the use of the extracted liquid; the detachable connection between the suction tube and the connecting tube can realize the replaceable components, and the connecting tube can be disassembled and maintained in time to ensure the smoothness of the suction hole; in addition, the design of the float at the connecting tube can keep it in the liquid when it is full of liquid, and it will not float up and contact with the air and age faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the liquid buoyancy mechanical self-closing device according to a specific embodiment of the utility model when it cooperates with a liquid container;

[0016] Figure 2 for Figure 1 Enlarged view of point A.

[0017] Description of labels:

[0018] 1. Liquid suction tube; 11. Sealing cover; 2. Connecting tube; 21. Suction hole; 3. Float; 31. Buoyancy unit; 32. Filling space; 4. Sealing ring. DETAILED DESCRIPTION

[0019] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0020] Please refer to Figure 1 to Figure 2 A liquid buoyancy mechanical self-closing device is arranged in a liquid container, including a suction tube and a float 3, wherein the suction tube includes a suction tube 1 and a connecting tube 2, wherein one end of the suction tube 1 is connected to the liquid container, and the other end extends into the liquid container and is detachably connected to the connecting tube 2; a suction hole 21 is provided at one end of the connecting tube 2 away from the suction tube 1; the float 3 is movably arranged along the length direction of the connecting tube 2; a sealing ring 4 cooperating with the suction hole 21 is provided on the float 3.

[0021] From the above description, it can be seen that the beneficial effects of the utility model are: through the cooperation between the suction tube and the float 3, when it is necessary to extract liquid from the liquid container, as the liquid level drops, the float 3 can move down along the connecting tube 2, and finally block the suction hole 21 at the designated position through the sealing ring 4 to avoid the intake of air during extraction, affecting the use of the extracted liquid; the detachable connection between the suction tube 1 and the connecting tube 2 can realize the replaceable components, and the connecting tube 2 can be disassembled and maintained in time to ensure the smoothness of the suction hole 21; in addition, the design of the float 3 at the connecting tube 2 can keep it in the liquid when it is full of liquid, and it will not float up and contact with the air and age faster.

[0022] Furthermore, one end of the connecting tube 2 away from the liquid suction tube 1 protrudes circumferentially to form a boss structure, and a plurality of suction holes 21 are provided on the boss structure.

[0023] It can be seen from the above description that the extraction area and extraction amount of the extraction tube can be increased through the arrangement of the boss structure and the plurality of suction holes 21 .

[0024] Furthermore, the upper end surface of the boss structure is opposite to the lower end surface of the float 3; the upper end surface of the boss structure is provided with a suction hole 21, and the lower end surface of the float 3 is provided with a sealing ring 4.

[0025] It can be seen from the above description that when the float 3 moves downward as the liquid level drops, its lower end surface can be pressed against the upper end surface of the boss structure, so that the sealing ring 4 can fit the suction hole 21 to seal it.

[0026] Furthermore, a suction hole 21 is provided on the side of the boss structure; the sealing ring 4 of the float 3 can be fitted with the boss structure; and the inner wall of the sealing ring 4 fits with the suction hole 21 .

[0027] From the above description, it can be known that when the float 3 moves downward as the liquid level drops, its sealing ring 4 can move downward and fit with the boss structure. At this time, the inner wall of the sealing ring 4 is fitted and sealed with the suction hole 21 on the side of the boss structure.

[0028] Furthermore, the suction hole 21 protrudes from the surface of the connecting pipe 2, and the sealing ring 4 fits the surface of the connecting pipe 2 and the suction hole 21 at the same time; a first sealing gap between the sealing ring 4 and the surface of the connecting pipe 2, a second sealing gap between the sealing ring 4 and the side of the protruding suction hole 21, and a third sealing gap between the sealing ring 4 and the end face of the suction hole 21 are formed between the sealing ring 4 and the connecting pipe 2.

[0029] It can be seen from the above description that, through the protruding design of the suction hole 21, the sealing ring 4 can form multiple sealing gaps between the connecting pipe 2 and the suction hole 21 when matched, thereby improving the sealing performance.

[0030] Furthermore, the float 3 includes a plurality of buoyancy units 31, and the plurality of buoyancy units 31 are detachably combined.

[0031] It can be seen from the above description that the buoyancy of the float 3 can be adjusted by disassembling the combined buoyancy unit 31 to adapt to different liquids.

[0032] Furthermore, a filling space 32 is provided inside the buoyancy unit 31 .

[0033] It can be seen from the above description that the buoyancy of the float 3 can be adjusted by filling the filling space 32 in the buoyancy unit 31 with material.

[0034] Furthermore, the connecting tube 2 is movable along the length direction of the pipette 1 .

[0035] It can be seen from the above description that, by moving the connecting tube 2, the minimum liquid level height corresponding to the suction hole 21 can be adjusted, thereby controlling the amount of liquid remaining in the liquid container after extraction.

[0036] Furthermore, the liquid pipette 1 is threadably connected to the connecting pipe 2 .

[0037] It can be seen from the above description that the quick connection between the pipette 1 and the connecting tube 2 is achieved by adopting a threaded connection method.

[0038] Furthermore, a sealing cover 11 is provided at one end of the pipette 1 connected to the liquid container.

[0039] It can be seen from the above description that the sealing during extraction is ensured by the design of the sealing cover 11 .

[0040] Embodiment 1:

[0041] Application scenario: During the extraction of the liquid in the tank, it is necessary to insert the suction pipe for operation. When the suction pipe is inserted to extract the liquid, since the internal liquid surface cannot be visually observed, there is a situation where excessive extraction causes gas to be extracted, which will affect the use of the extracted liquid fuel. If you want to ensure that the gas is not extracted, you can only reduce the amount of liquid extracted, which will cause certain waste.

[0042] like Figure 1 to Figure 2 As shown, the liquid buoyancy mechanical self-closing device of this embodiment includes a suction tube and a float 3, wherein the suction tube includes a suction tube 1 and a connecting tube 2, wherein one end of the suction tube 1 is connected to the liquid container and is provided with a sealing cover 11, and the other end extends into the liquid container and is detachably connected to the connecting tube 2, specifically, the suction tube 1 is threadedly connected to the connecting tube 2, and the connecting tube 2 can be moved and adjusted to a certain extent along the length direction of the suction tube 1;

[0043] The end of the connecting tube 2 away from the pipette 1 is provided with a suction hole 21 . Specifically, the end of the connecting tube 2 away from the pipette 1 protrudes circumferentially to form a boss structure, and the boss structure is provided with a plurality of suction holes 21 .

[0044] The float 3 is movably arranged along the length direction of the connecting pipe 2. Specifically, the float 3 includes a plurality of buoyancy units 31. The plurality of buoyancy units 31 are detachably combined. A filling space 32 is provided inside the buoyancy unit 31. A sealing ring 4 cooperating with the suction hole 21 is provided on the float 3.

[0045] In this embodiment, the upper end surface of the boss structure is opposite to the lower end surface of the float 3; the upper end surface of the boss structure is provided with a suction hole 21, and the lower end surface of the float 3 is provided with a sealing ring 4.

[0046] The suction hole 21 protrudes from the surface of the connecting pipe 2, and the sealing ring 4 fits the surface of the connecting pipe 2 and the suction hole 21 at the same time; a first sealing gap between the sealing ring 4 and the surface of the connecting pipe 2, a second sealing gap between the sealing ring 4 and the side of the protruding suction hole 21, and a third sealing gap between the sealing ring 4 and the end face of the suction hole 21 are formed between the sealing ring 4 and the connecting pipe 2.

[0047] Embodiment 2:

[0048] The difference between the second embodiment and the first embodiment is that: a suction hole 21 is provided on the side of the boss structure; the sealing ring 4 of the float 3 can be fitted with the boss structure; and the inner wall of the sealing ring 4 fits with the suction hole 21.

[0049] To summarize, the liquid buoyancy mechanical self-closing device provided by the utility model, through the cooperation of the suction tube and the float, when it is necessary to extract the liquid in the liquid container, as the liquid level drops, the float can move down along the connecting tube, and finally block the suction hole at the designated position through the sealing ring to avoid the intake of air during extraction, affecting the use of the extracted liquid; the detachable connection between the suction tube and the connecting tube can realize the replaceable components, and the connecting tube can be disassembled and maintained in time to ensure the smoothness of the suction hole; in addition, the design of the float at the connecting tube can keep it in the liquid when it is full of liquid, and it will not float up and contact with the air and age faster.

[0050] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A liquid buoyancy mechanical self-closing device, which is arranged in a liquid container, characterized in that: It includes a suction tube and a float, wherein the suction tube includes a suction tube and a connecting tube, one end of the suction tube is connected to the liquid container, and the other end extends into the liquid container and is detachably connected to the connecting tube; a suction hole is provided at one end of the connecting tube away from the suction tube; the float is movably arranged along the length direction of the connecting tube; and a sealing ring that cooperates with the suction hole is provided on the float.

2. The liquid buoyancy mechanical self-closing device according to claim 1, characterized in that: One end of the connecting tube away from the liquid suction tube protrudes circumferentially to form a boss structure, and a plurality of suction holes are arranged on the boss structure.

3. The liquid buoyancy mechanical self-closing device according to claim 2, characterized in that: The upper end surface of the boss structure is opposite to the lower end surface of the float; the upper end surface of the boss structure is provided with a suction hole, and the lower end surface of the float is provided with a sealing ring.

4. The liquid buoyancy mechanical self-closing device according to claim 2, characterized in that: A suction hole is provided on the side of the boss structure; the sealing ring of the float can be fitted with the boss structure; and the inner wall of the sealing ring fits with the suction hole.

5. The liquid buoyancy mechanical self-closing device according to claim 1, characterized in that: The suction hole protrudes from the surface of the connecting pipe, and the sealing ring fits the surface of the connecting pipe and the suction hole at the same time; a first sealing gap between the sealing ring and the surface of the connecting pipe, a second sealing gap between the sealing ring and the protruding side of the suction hole, and a third sealing gap between the sealing ring and the end face of the suction hole are formed between the sealing ring and the connecting pipe.

6. The liquid buoyancy mechanical self-closing device according to claim 2, characterized in that: The float comprises a plurality of buoyancy units, and the plurality of buoyancy units are detachably combined.

7. The liquid buoyancy mechanical self-closing device according to claim 6, characterized in that: A filling space is provided inside the buoyancy unit.

8. The liquid buoyancy mechanical self-closing device according to claim 1, characterized in that: The connecting tube is movable along the length direction of the liquid pipette.

9. The liquid buoyancy mechanical self-closing device according to claim 1, characterized in that: The liquid suction tube is threadedly connected to the connecting pipe.

10. The liquid buoyancy mechanical self-closing device according to claim 1, characterized in that: A sealing cover is provided at one end of the liquid pipette connected to the liquid container.

Images