Leak-proof transportation liquid tank sealing cover

Abstract

The utility model discloses a leakproof transportation liquid tank sealing cover, which belongs to the technical field of transportation liquid tanks and comprises a liquid tank body, a tank opening positioned at the top of the liquid tank body and a sealing cover covering the top of the tank opening, a protective shell is fixed at the top of the sealing cover, and a turntable is rotatably mounted in the protective shell and attached to the top of the sealing cover. The top of the rotating disc is provided with plane threads, clamping hooks are evenly arranged on the outer side of the protection shell in a sliding mode, and one ends of the clamping hooks extend into the protection shell and are in threaded connection with the top of the rotating disc. According to the utility model, the turntable is rotationally mounted at the top of the sealing cover, the plane thread is arranged at the top of the turntable, and the turntable is in threaded connection with the clamping hook on the protective shell through the plane thread and is matched with the limiting ring on the outer side of the tank opening for use, so that multi-point extrusion can be carried out on the outer side of the sealing cover in the sealing process; the pressure on the sealing cover is balanced, and the sealing effect is improved.

Description

Technical Field

[0001] The utility model relates to a sealing cover, in particular to a leakage-proof sealing cover for a transport liquid tank, belonging to the technical field of transport liquid tanks. Background Art

[0002] In the prior art, a utility model with application number 201720843461.4 discloses a tank truck cover. In order to solve the problem that there is currently no filling port cover on the market that can be opened or closed by a robot arm, which not only increases people's work intensity but also brings great danger to operators, a smart code chip is also installed on the locking rod so that the filling robot of the tank truck can locate the locking rod through visual camera, and the robot arm of the filling robot can rotate the locking rod to open or close the cover, so that the utility model can also use a robot arm to automatically open and close the cover of the filling port while satisfying manual operation, and the utility model has a guiding and positioning function, thereby satisfying the purpose of automatic filling by the filling robot.

[0003] Similar to the above application, there are still some shortcomings:

[0004] During the process of pressing and fixing, the sealing cover is pressed and fixed only by applying downward pressure from the middle position of the top of the sealing cover through the screw, which easily leads to unbalanced pressure on the outer side of the sealing cover. In addition, the contact area between the sealing cover and the can mouth is small, which affects the sealing effect.

[0005] Therefore, a leak-proof sealing cover for transport liquid tank is designed to optimize the above-mentioned problems. Utility Model Content

[0006] The main purpose of the utility model is to provide a leak-proof sealing cover for a transport liquid tank, wherein a turntable is rotatably installed on the top of the sealing cover, and a flat thread is provided on the top of the turntable, which is then connected to a hook thread on a protective shell through the flat thread, and is used in conjunction with a limiting ring on the outer side of the tank mouth, so that during the sealing process, multi-point extrusion can be performed on the outer side of the sealing cover, thereby ensuring that the pressure on the sealing cover is balanced and the sealing effect is improved. By setting a convex shape at the bottom of the sealing cover, and then using it in conjunction with an annular groove, an annular sealing gasket, a hollow sealing gasket and an air guide groove, the expansion of the hollow sealing gasket can be controlled during the sealing process, thereby increasing the contact area with the inner wall of the tank mouth and ensuring the sealing and leak-proof effect of the device.

[0007] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0008] A leak-proof sealing cover for a transport liquid tank comprises a liquid tank body, a tank mouth located at the top of the liquid tank body and a sealing cover covering the top of the tank mouth, a protective shell is fixed on the top of the sealing cover, a turntable is rotatably installed inside the protective shell and fits on the top of the sealing cover, a flat thread is provided on the top of the turntable, a hook is evenly slidably provided on the outside of the protective shell, one end of the hook extends to the inside of the protective shell and is connected to the top thread of the turntable, a limiting ring cooperating with the hook is fixed on the outside of the tank mouth, the bottom end of the hook is clamped on the bottom of the limiting ring, and a connecting piece is provided between the outside of the protective shell and the top of the liquid tank body.

[0009] Preferably, a fixing rod is fixed at the middle position of the top of the turntable, and the fixing rod passes through the protective shell and is rotatably connected to the protective shell, and a hand wheel is installed at the top of the fixing rod.

[0010] Preferably, a slope is provided at the bottom of the outer side of the limiting ring, and the inclination angle of the slope is the same as the inclination angle of the inner end of the hook.

[0011] Preferably, the connecting member comprises a connecting rod and a fixing plate, the fixing plate is symmetrically arranged on the top of the liquid tank body, a connecting rod is rotatably installed between two sets of fixing plates, and an end of the connecting rod is fixedly connected to the outer side of the protective shell.

[0012] Preferably, eight groups of hooks are provided, and the angles between adjacent planar threads are the same.

[0013] Preferably: the shape of the bottom of the sealing cover is a convex shape, an annular groove is provided on the outer side of the bottom of the sealing cover, an annular sealing gasket is provided inside the annular groove, and the annular sealing gasket is slidingly connected to the annular groove, a hollow sealing gasket is provided on the outer side surface of the bottom end of the sealing cover, and an air guide groove is provided between the top of the annular groove and the hollow sealing gasket.

[0014] Preferably, the bottom of the annular sealing gasket is a plane, and the bottom end of the annular sealing gasket is fitted on the top of the can mouth.

[0015] The beneficial effects of the utility model are:

[0016] The utility model provides a leak-proof sealing cover for a transport liquid tank, wherein a turntable is rotatably installed on the top of the sealing cover, and a flat thread is provided on the top of the turntable, which is then connected to a hook thread on a protective shell through the flat thread, and is used in conjunction with a limiting ring on the outer side of the tank mouth, so that during the sealing process, multiple points of compression can be performed on the outer side of the sealing cover, ensuring that the pressure on the sealing cover is balanced, and improving the sealing effect;

[0017] By setting a convex shape at the bottom of the sealing cover, and using it in conjunction with an annular groove, an annular sealing gasket, a hollow sealing gasket and an air guide groove, the expansion of the hollow sealing gasket can be controlled during the sealing process, increasing the contact area with the inner wall of the tank mouth, thereby ensuring the sealing and leakage-proof effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 It is a top view of the utility model;

[0021] Figure 4 It is a top view of the turntable of the utility model.

[0022] In the figure: 1. liquid tank body; 2. tank mouth; 3. sealing cover; 4. protective shell; 5. hook; 6. limit ring; 7. turntable; 8. flat thread; 9. fixing rod; 10. hand wheel; 11. connecting rod; 12. fixing plate; 13. annular groove; 14. annular sealing gasket; 15. hollow sealing gasket; 16. air guide groove. DETAILED DESCRIPTION

[0023] In order to make the technical solution of the utility model more clear and specific to those skilled in the art, the utility model is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the utility model are not limited thereto.

[0024] like Figure 1-Figure 4 As shown, this embodiment provides a leak-proof transport liquid tank sealing cover, including a liquid tank body 1, a tank mouth 2 located at the top of the liquid tank body 1 and a sealing cover 3 covering the top of the tank mouth 2, a protective shell 4 is fixed to the top of the sealing cover 3, a turntable 7 is rotatably installed inside the protective shell 4 and fits on the top of the sealing cover 3, a flat thread 8 is provided on the top of the turntable 7, a hook 5 is evenly slidably provided on the outside of the protective shell 4, one end of the hook 5 extends to the inside of the protective shell 4 and is threadedly connected to the top of the turntable 7, a limiting ring 6 cooperating with the hook 5 is fixed to the outside of the tank mouth 2, the bottom end of the hook 5 is clamped at the bottom of the limiting ring 6, and a connecting piece is provided between the outside of the protective shell 4 and the top of the liquid tank body 1.

[0025] The overall working principle is: when sealing the tank mouth 2, the sealing cover 3 is covered on the top of the tank mouth 2. At this time, the hook 5 is in the maximum elongation state on the outside of the sealing cover 3. After the sealing cover 3 is attached to the top of the tank mouth 2, the rotation of the turntable 7 is controlled. The flat thread 8 on the top of the turntable 7 engages with the top of the hook 5, which will control multiple groups of hooks 5 to move toward the tank mouth 2 at the same time. The bottom end of the hook 5 is stuck in the bottom of the limit ring 6, and the outside of the sealing cover 3 is fixed at multiple points to ensure the compression and sealing effect of the sealing cover 3.

[0026] In this embodiment, a fixing rod 9 is fixed at the middle position of the top of the turntable 7 , and the fixing rod 9 passes through the protective shell 4 and is rotatably connected to the protective shell 4 . A hand wheel 10 is installed at the top of the fixing rod 9 .

[0027] Partial working principle: when the rotating disk 7 is controlled to rotate, the rotation of the hand wheel 10 is manually controlled, and the rotation of the hand wheel 10 drives the rotating disk 7 to rotate through the fixed rod 9.

[0028] In this embodiment, a slope is provided at the bottom of the outer side of the limiting ring 6 , and the inclination angle of the slope is the same as the inclination angle of the inner end of the hook 5 .

[0029] Local working principle: When the inclined surface at the bottom end of the hook 5 contacts the outer edge of the limit ring 6, sliding friction will occur. By increasing the contact area between the limit ring 6 and the hook 5, the local wear on the outer side of the limit ring 6 can be reduced to ensure normal use.

[0030] In this embodiment, the connecting member includes a connecting rod 11 and a fixing plate 12. The fixing plate 12 is symmetrically arranged on the top of the liquid tank body 1. The connecting rod 11 is rotatably installed between the two sets of fixing plates 12. The end of the connecting rod 11 is fixedly connected to the outer side of the protective shell 4.

[0031] Local working principle: Due to the existence of the connecting piece, the connecting rod 11 is fixed to the outside of the protective shell 4 and is rotatably connected to the fixed plate 12, so the sealing cover 3 is arranged in a connected manner with the liquid tank body 1, and the sealing cover 3 is flipped and controlled during the sealing and opening process.

[0032] In this embodiment, eight groups of hooks 5 are provided, and the included angles between adjacent planar threads 8 are the same.

[0033] Local working principle: Multiple groups of hooks 5 are evenly distributed along the side of the sealing cover 3 to ensure balanced pressure on the surface of the sealing cover 3.

[0034] In this embodiment, the shape of the bottom of the sealing cover 3 is a convex shape, and an annular groove 13 is provided on the outer side of the bottom of the sealing cover 3. An annular sealing gasket 14 is provided inside the annular groove 13, and the annular sealing gasket 14 is slidingly connected to the annular groove 13. A hollow sealing gasket 15 is provided on the outer side surface of the bottom end of the sealing cover 3, and an air guide groove 16 is provided between the top of the annular groove 13 and the hollow sealing gasket 15.

[0035] Local working principle: During the sealing process, the top of the tank mouth 2 will exert upward pressure on the annular sealing gasket 14. At this time, the annular sealing gasket 14 moves upward, and the gas inside the annular groove 13 is filled into the interior of the hollow sealing gasket 15 through the air guide groove 16. The hollow sealing gasket 15 expands and fits on the inner wall of the tank mouth 2, increasing the contact area between the sealing cover 3 and the tank mouth 2 during the sealing process, and the sealing effect is better.

[0036] In this embodiment, the bottom of the annular sealing gasket 14 is a plane, and the bottom end of the annular sealing gasket 14 is in contact with the top of the tank mouth 2 .

[0037] Partial working principle: The top of the tank mouth 2 is tightly fitted with the annular sealing gasket 14 to ensure the sealing effect.

[0038] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A leakproof sealing cover for a transport liquid tank, comprising a liquid tank body (1), a tank opening (2) located at the top of the liquid tank body (1), and a sealing cover (3) covering the top of the tank opening (2), characterized in that: A protective shell (4) is fixed on the top of the sealing cover (3), a turntable (7) is rotatably installed inside the protective shell (4) and fits on the top of the sealing cover (3), a flat thread (8) is provided on the top of the turntable (7), a hook (5) is evenly slidably provided on the outside of the protective shell (4), one end of the hook (5) extends to the inside of the protective shell (4) and is threadedly connected to the top of the turntable (7), a limiting ring (6) matched with the hook (5) is fixed on the outside of the tank mouth (2), the bottom end of the hook (5) is clamped on the bottom of the limiting ring (6), and a connecting piece is provided between the outside of the protective shell (4) and the top of the liquid tank body (1).

2. The anti-leakage sealing cover for transport liquid tank according to claim 1, characterized in that: A fixing rod (9) is fixed at the middle position of the top of the rotating disk (7), and the fixing rod (9) penetrates the protective shell (4) and is rotatably connected to the protective shell (4), and a hand wheel (10) is installed at the top end of the fixing rod (9).

3. The anti-leakage sealing cover for transport liquid tank according to claim 2, characterized in that: The bottom of the outer side of the limiting ring (6) is provided with an inclined surface, and the inclination angle of the inclined surface is the same as the inclination angle of the inner end of the hook (5).

4. The anti-leakage sealing cover for transport liquid tank according to claim 3, characterized in that: The connecting piece comprises a connecting rod (11) and a fixing plate (12). The fixing plate (12) is symmetrically arranged on the top of the liquid tank body (1). The connecting rod (11) is rotatably mounted between two sets of fixing plates (12). The end of the connecting rod (11) is fixedly connected to the outer side of the protective shell (4).

5. The anti-leakage sealing cover for transport liquid tank according to claim 4, characterized in that: Eight groups of hooks (5) are provided, and the included angles between adjacent planar threads (8) are the same.

6. A leak-proof sealing cover for a liquid transport tank according to any one of claims 1 to 5, characterized in that: The bottom of the sealing cover (3) is in the shape of a convex letter, an annular groove (13) is provided on the outer side of the bottom of the sealing cover (3), an annular sealing gasket (14) is provided inside the annular groove (13), and the annular sealing gasket (14) and the annular groove (13) are slidably connected, a hollow sealing gasket (15) is provided on the outer side surface of the bottom end of the sealing cover (3), and an air guide groove (16) is provided between the top of the annular groove (13) and the hollow sealing gasket (15).

7. The anti-leakage sealing cover for transport liquid tank according to claim 6, characterized in that: The bottom of the annular sealing gasket (14) is a plane, and the bottom end of the annular sealing gasket (14) is fitted on the top of the tank mouth (2).

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