Safety sealing device for oil tank

Abstract

The safety sealing device for the oil tank comprises a lower sealing seat, the lower sealing seat is arranged at the bottom of an oil tank body, an oil tank outlet is formed in the bottom of the oil tank body and penetrates through the lower sealing seat in a sealing mode, and a sealing valve plate is arranged at the upper end in the oil tank outlet through a valve rod. A lower sealing cover is arranged at the lower end of the oil tank outlet, an oil tank inlet is formed in the top of the oil tank body through an upper sealing seat, and an upper sealing cover is arranged at the top of the oil tank inlet. By arranging a series of structures and multi-stage sealing of the oil tank inlet and the oil tank outlet on the oil tank body, the sealing performance of the oil tank inlet and the oil tank outlet on the oil tank body is enhanced in a targeted mode, the oil tank outlet is double-sealed, the sealing performance of the oil tank outlet is good, and one-time sealing of the oil tank outlet can be used for adjusting and controlling the size of the oil tank outlet. And the overall corrosion-resistant sealing performance of the oil tank body is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of oil tank sealing, in particular to a safety sealing device for an oil tank. Background Art

[0002] Oil tanks are large containers with regular shapes used to store oil. They can be divided into metal oil tanks and non-metal oil tanks according to the different construction materials. Most metal oil tanks are steel oil tanks, which are commonly used in oil depots. The top of the oil tank is equipped with an oil tank inlet and the bottom of the oil tank is equipped with an oil tank outlet.

[0003] At present, although the threaded sealing caps installed on the oil tank inlet and the oil tank outlet can seal the inlet and the outlet, there is a lack of sealing between the oil tank inlet, the oil tank outlet and the oil tank body. The oil tank body is prone to leakage problems at the installation points of the oil tank inlet and the oil tank outlet. The oil tank outlet sealing cap has a single one-time sealing, poor sealing reliability, and is inconvenient for opening the oil tank outlet to discharge oil. Utility Model Content

[0004] The purpose of the utility model is to provide a safety sealing device for an oil tank to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safety sealing device for an oil tank, comprising a lower sealing seat, wherein the lower sealing seat is arranged at the bottom of an oil tank body, an oil tank outlet is arranged at the bottom of the oil tank body, the oil tank outlet seal is arranged through the lower sealing seat, a sealing valve plate is arranged at the upper end of the oil tank outlet through a valve stem, the valve stem seal at one end of the sealing valve plate is arranged through the oil tank outlet and is connected to an actuator, a lower sealing cover is arranged at the lower end of the oil tank outlet, an oil tank inlet is arranged at the top of the oil tank body through an upper sealing seat, and an upper sealing cover is arranged at the top of the oil tank inlet.

[0006] Preferably, the upper sealing seat has the same structural arrangement as the lower sealing seat, the lower sealing seat comprises an inner sealing gasket, a sealing filler interlayer and an outer sealing plate, one side of the inner sealing gasket is connected to the outer wall of the oil tank body, the outer side of the inner sealing gasket is wrapped with a sealing filler interlayer, the outer side of the sealing filler interlayer is wrapped with an outer sealing plate, one side of the outer sealing plate is connected to the outer wall of the oil tank body, and the oil tank outlet seal is arranged through the inner sealing gasket, the sealing filler interlayer and the outer sealing plate.

[0007] Preferably, the actuator includes a worm wheel and a worm, and a worm wheel and a worm are provided on one side of the oil tank outlet through a protective box. The worm wheel and the worm are meshingly arranged, one end of the worm is connected to the output end of the servo motor through a coupling, one side of the worm wheel is connected to the valve stem, and a sealing seat is provided on the oil tank outlet on one side of the worm wheel.

[0008] Preferably, the upper sealing cover has the same structural arrangement as the lower sealing cover, the outer surfaces of the oil tank outlet and the oil tank inlet away from one end of the oil tank body are both provided with external threads, the inner sides of the lower sealing cover and the upper sealing cover are both provided with internal threads, and the lower sealing cover and the oil tank outlet, as well as the upper sealing cover and the oil tank inlet are both threadedly connected.

[0009] Preferably, the lower sealing cover and the upper sealing cover are both provided with sealing bosses inside, and the sealing bosses are sealingly arranged inside the oil tank outlet and the oil tank inlet.

[0010] Preferably, the oil tank body includes an inner corrosion-resistant layer, a sealing base layer and an outer corrosion-resistant layer. The inner surface of the oil tank body is set as the inner corrosion-resistant layer, the outer surface of the oil tank body is set as the outer corrosion-resistant layer, and the sealing base layer is set between the inner corrosion-resistant layer and the outer corrosion-resistant layer.

[0011] Preferably, a support seat is provided at the bottom of the oil tank body, and a plurality of the support seats are provided. The oil tank outlet is provided between two adjacent support seats, and the oil tank outlet is provided close to one of the support seats.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The safety sealing device for the oil tank realizes multi-stage sealing at the oil tank inlet and the oil tank outlet on the oil tank body by means of an upper sealing seat and an upper sealing cover arranged on the oil tank inlet, and a lower sealing seat and a lower sealing seat on the oil tank outlet. The upper sealing seat and the lower sealing seat are both composed of an inner sealing gasket, a sealing filler interlayer and an outer sealing plate, so as to specifically strengthen the sealing at the oil tank inlet and the oil tank outlet on the oil tank body.

[0014] 2. The safety sealing device for the oil tank realizes the primary sealing of the oil tank outlet through the sealing valve plate arranged on the oil tank outlet, in cooperation with the worm gear and the worm, and realizes the secondary sealing of the oil tank outlet in combination with the lower sealing cover and the blocking boss arranged on the oil tank outlet. The oil tank outlet is doubly sealed, so that the sealing performance of the oil tank outlet is better, and the primary sealing of the oil tank outlet can be used for adjusting and controlling the size of the oil tank outlet.

[0015] 3. The oil tank safety sealing device is provided with an oil tank body composed of an inner corrosion-resistant layer, a sealing base layer and an outer corrosion-resistant layer, thereby enhancing the overall corrosion-resistant sealing performance of the oil tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 3This is a schematic diagram of the structure of the lower sealing cover in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the sealing base layer in the utility model.

[0020] In the figure: 1. lower sealing seat; 11. inner sealing gasket; 12. sealing packing interlayer; 13. outer sealing plate; 2. oil tank outlet; 3. sealing valve plate; 31. worm gear; 32. worm; 4. lower sealing cover; 5. oil tank body; 51. inner corrosion-resistant layer; 52. sealing base layer; 53. outer corrosion-resistant layer; 6. upper sealing seat; 7. upper sealing cover; 8. sealing boss; 9. support seat. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] like Figures 1 to 4 As shown, the safety sealing device for the oil tank in this embodiment includes a lower sealing seat 1, which is arranged at the bottom of the oil tank body 5. The bottom of the oil tank body 5 is provided with an oil tank outlet 2, and the oil tank outlet 2 seals and penetrates the lower sealing seat 1. The upper end of the oil tank outlet 2 is provided with a sealing valve plate 3 through a valve stem. The valve stem seal at one end of the sealing valve plate 3 penetrates the oil tank outlet 2 and is connected with the actuator. The lower end of the oil tank outlet 2 is provided with a lower sealing cover 4, and the top of the oil tank body 5 is provided with an oil tank inlet through an upper sealing seat 6. The top of the oil tank inlet is provided with an upper sealing cover 7, which strengthens the overall corrosion resistance and sealing performance of the oil tank body 5, and specifically strengthens the sealing performance at the oil tank inlet and the oil tank outlet 2 on the oil tank body 5, prolongs the service life of the oil tank, has good sealing and leak-proof safety, and performs double sealing on the oil tank outlet 2 to make the sealing performance of the oil tank outlet 2 better, and the one-time sealing of the oil tank outlet 2 can be used for the size adjustment control of the oil tank outlet 2.

[0024] Specifically, the upper sealing seat 6 has the same structural arrangement as the lower sealing seat 1, the lower sealing seat 1 includes an inner sealing gasket 11, a sealing filler interlayer 12 and an outer sealing plate 13, one side of the inner sealing gasket 11 is connected to the outer wall of the oil tank body 5, the outer side of the inner sealing gasket 11 is wrapped with a sealing filler interlayer 12, the outer side of the sealing filler interlayer 12 is wrapped with an outer sealing plate 13, one side of the outer sealing plate 13 is connected to the outer wall of the oil tank body 5, the oil tank outlet 2 seal runs through the inner sealing gasket 11, the sealing filler interlayer 12, and the outer sealing plate 13, the inner sealing gasket 11 adopts high-strength corrosion-resistant sealing rubber, the outer sealing plate 13 squeezes and fixes the sealing filler interlayer 12 and the inner sealing gasket 11, so as to realize multi-stage sealing at the oil tank inlet and the oil tank outlet 2 on the oil tank body 5, and specifically strengthen the sealing at the oil tank inlet and the oil tank outlet 2 on the oil tank body 5.

[0025] Furthermore, the actuator includes a worm gear 31 and a worm 32. The worm gear 31 and the worm 32 are provided on one side of the oil tank outlet 2 through a protective box. The worm gear 31 and the worm 32 are meshed with each other. One end of the worm 32 is connected to the output end of the servo motor through a coupling. One side of the worm gear 31 is connected to the valve stem. A sealing seat is provided on the oil tank outlet 2 on one side of the worm gear 31. The valve stem seal runs through the sealing seat. The sealing seat and the lower sealing seat 4 have the same structure to strengthen the sealing of the sealing valve plate 3 and the oil tank outlet 2 at the valve stem. The servo motor is provided on one side of the protective box. One side of the protective box is connected to the oil tank outlet 2. A controller is provided on the other side of the protective box. The controller is electrically connected to the servo motor. The operation of the servo motor is controlled through the control panel on the controller. The servo motor drives the worm 32 and the worm gear 31 to rotate, so that the sealing valve plate 3 in the oil tank outlet 2 rotates, and the oil tank outlet 2 is opened. After the oil is discharged, the sealing valve plate 3 is first driven by the actuator to rotate to seal the oil tank outlet 2 once.

[0026] Furthermore, the upper sealing cover 7 has the same structural arrangement as the lower sealing cover 4, the outer surfaces of the oil tank outlet 2 and the oil tank inlet away from the end of the oil tank body 5 are both provided with external threads, the inner sides of the lower sealing cover 4 and the upper sealing cover 7 are both provided with internal threads, the lower sealing cover 4 and the oil tank outlet 2, and the upper sealing cover 7 and the oil tank inlet are both threadedly connected, and the upper sealing cover 7 on the oil tank inlet and the lower sealing cover 4 on the oil tank outlet 2 are sealed and tightened in terms of assembly and disassembly.

[0027] Furthermore, a sealing boss 8 is provided inside the lower sealing cover 4 and the upper sealing cover 7. The sealing boss 8 is sealed inside the oil tank outlet 2 and the oil tank inlet. The sealing boss 8 is inserted into the oil tank inlet and the oil tank outlet 2 for sealing.

[0028] Furthermore, the oil tank body 5 includes an inner corrosion-resistant layer 51, a sealing base layer 52 and an outer corrosion-resistant layer 53. The inner surface of the oil tank body 5 is set as the inner corrosion-resistant layer 51, and the outer surface of the oil tank body 5 is set as the outer corrosion-resistant layer 53. The sealing base layer 52 is set between the inner corrosion-resistant layer 51 and the outer corrosion-resistant layer 53. The inner corrosion-resistant layer 51 is formed by spraying oil corrosion-resistant paint, the sealing base layer 52 is made of high-strength stainless steel material, and the outer corrosion-resistant layer 53 is sprayed with anti-corrosion paint, so that the inner and outer surfaces of the oil tank body 5 have good corrosion resistance, and the sealing base layer 52 is prevented from being corroded.

[0029] Furthermore, a support seat 9 is provided at the bottom of the oil tank body 5, and several support seats 9 are provided. The support seat 9 is used for stable support of the oil tank body 5. The oil tank outlet 2 is provided between two adjacent support seats 9, and the oil tank outlet 2 is provided close to one of the support seats 9. The support seat 9 can provide anti-collision protection for the oil tank outlet 2, thereby improving the safety of the oil tank outlet 2 and its sealing.

[0030] The method of using the present embodiment is as follows: unscrew the upper sealing cover 7 on the oil tank inlet, add the oil into the inside of the oil tank body 5 from the oil tank inlet, and then tighten the upper sealing cover 7 to install it on the oil tank inlet. When discharging oil, first unscrew the lower sealing cover 4 on the oil tank outlet 2, and then drive the worm 32 and the worm gear 31 to rotate by the servo motor to rotate the sealing valve plate 3 in the oil tank outlet 2, and the oil tank outlet 2 is opened. After the oil is discharged, first drive the sealing valve plate 3 to rotate by the actuator to seal the oil tank outlet 2 once, and then tighten the lower sealing cover 4 on the oil tank outlet 2, and seal the plugging boss 8 in the oil tank outlet 2 for secondary sealing of the oil tank outlet 2. The oil tank outlet 2 is doubly sealed to make the oil tank outlet 2 The sealing performance is better, and the one-time sealing of the oil tank outlet 2 can be used for adjusting and controlling the size of the oil tank outlet 2. The oil tank body 5 is composed of an inner corrosion-resistant layer 51, a sealing base layer 52 and an outer corrosion-resistant layer 53, which enhances the overall corrosion-resistant sealing performance of the oil tank body 5. The upper sealing seat 6 and the upper sealing cover 7 are arranged on the oil tank inlet, and the lower sealing seat 1 and the lower sealing cover 4 are arranged on the oil tank outlet 2. The upper sealing seat 6 and the lower sealing seat 1 are both composed of an inner sealing gasket 11, a sealing filler interlayer 12 and an outer sealing plate 13, which realizes multi-stage sealing at the oil tank inlet and the oil tank outlet 2 on the oil tank body 5, and specifically enhances the sealing at the oil tank inlet and the oil tank outlet 2 on the oil tank body 5, prolongs the service life of the oil tank, and has good sealing and leak-proof safety.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A safety sealing device for an oil tank, comprising a lower sealing seat (1), characterized in that: The lower sealing seat (1) is arranged at the bottom of the oil tank body (5); the bottom of the oil tank body (5) is provided with an oil tank outlet (2); the oil tank outlet (2) is sealed and penetrates the lower sealing seat (1); the upper end of the oil tank outlet (2) is provided with a sealing valve plate (3) through a valve stem; the valve stem seal at one end of the sealing valve plate (3) penetrates the oil tank outlet (2) and is connected to the actuator; the lower end of the oil tank outlet (2) is provided with a lower sealing cover (4); the top of the oil tank body (5) is provided with an oil tank inlet through an upper sealing seat (6); the top of the oil tank inlet is provided with an upper sealing cover (7).

2. The safety sealing device for oil tank according to claim 1, characterized in that: The upper sealing seat (6) has the same structural arrangement as the lower sealing seat (1), the lower sealing seat (1) comprising an inner sealing gasket (11), a sealing filler sandwich (12) and an outer sealing plate (13), one side of the inner sealing gasket (11) is connected to the outer wall of the oil tank body (5), the outer side of the inner sealing gasket (11) is wrapped with a sealing filler sandwich (12), the outer side of the sealing filler sandwich (12) is wrapped with an outer sealing plate (13), one side of the outer sealing plate (13) is connected to the outer wall of the oil tank body (5), and the oil tank outlet (2) seal is arranged through the inner sealing gasket (11), the sealing filler sandwich (12) and the outer sealing plate (13).

3. The safety sealing device for oil tank according to claim 1, characterized in that: The actuator comprises a worm wheel (31) and a worm (32); the worm wheel (31) and the worm (32) are arranged on one side of the oil tank outlet (2) through a protective box; the worm wheel (31) and the worm (32) are meshed with each other; one end of the worm (32) is connected to the output end of the servo motor through a coupling; one side of the worm wheel (31) is connected to the valve stem; and a sealing seat is arranged on the oil tank outlet (2) on one side of the worm wheel (31).

4. The safety sealing device for oil tank according to claim 1, characterized in that: The upper sealing cover (7) has the same structural arrangement as the lower sealing cover (4); the outer surfaces of the oil tank outlet (2) and the oil tank inlet at one end away from the oil tank body (5) are both provided with external threads; the inner sides of the lower sealing cover (4) and the upper sealing cover (7) are both provided with internal threads; the lower sealing cover (4) and the oil tank outlet (2) are both threadedly connected, as are the upper sealing cover (7) and the oil tank inlet.

5. The safety sealing device for oil tank according to claim 1, characterized in that: The lower sealing cover (4) and the upper sealing cover (7) are both provided with a sealing boss (8) inside, and the sealing boss (8) is sealingly arranged inside the oil tank outlet (2) and the oil tank inlet.

6. The safety sealing device for oil tank according to claim 1, characterized in that: The oil tank body (5) comprises an inner corrosion resistant layer (51), a sealing base layer (52) and an outer corrosion resistant layer (53); the inner surface of the oil tank body (5) is provided as the inner corrosion resistant layer (51), the outer surface of the oil tank body (5) is provided as the outer corrosion resistant layer (53), and the sealing base layer (52) is provided between the inner corrosion resistant layer (51) and the outer corrosion resistant layer (53).

7. The safety sealing device for oil tank according to claim 1, characterized in that: A support seat (9) is provided at the bottom of the oil tank body (5), and a plurality of the support seats (9) are provided. The oil tank outlet (2) is provided between two adjacent support seats (9), and the oil tank outlet (2) is provided close to one of the support seats (9).

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