A load handling protection system

Abstract

The utility model discloses a kind of loading and unloading protection systems, including tank and the sea valve of being installed in the lower side of tank, welding flange is arranged between the tank and sea valve, first gasket is arranged between the welding flange and sea valve, the lower side of sea valve is provided with elbow pipe, the lower side of elbow pipe is provided with three-way pipe, the left side of three-way pipe is provided with ball valve, the right side of three-way pipe is provided with oil unloading valve, the upper end circular outer wall of ball valve and oil unloading valve is provided with handle, to control the opening and closing of ball valve and oil unloading valve, by installing safety pipe, after tank car is slightly impacted, safety pipe can appear damage or fracture, to protect the safety of rear sea valve, avoid sea valve to appear damage or fracture, and material transported by tank body cannot appear leakage, repair and transfer material time also can be greatly reduced, effectively save time cost and repair cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of tank truck transportation protection equipment, specifically relating to a loading and unloading protection system. Background Technology

[0002] When transporting chemicals in tank trucks, these trucks are at risk of collisions. If a tank truck suffers a severe impact, the loading and unloading system at the rear of the truck is highly susceptible to deformation or damage. If the hazardous chemicals leak, the consequences would be catastrophic, causing environmental pollution, the release of toxic gases, or even an explosion, resulting in a major accident that endangers public safety and property. Therefore, existing tank trucks are required to allow damage to the loading and unloading system at the rear of the tank in the event of a collision, but to prevent leaks to avoid secondary disasters, ensure the safety of people and property, and minimize losses.

[0003] However, existing loading and unloading protection systems rely on the breaking of the bottom valve to protect the materials transported inside the tank after an impact, which can cause a lot of unnecessary economic losses. Utility Model Content

[0004] The purpose of this invention is to provide a loading and unloading protection system to solve the problem mentioned in the background art that existing loading and unloading protection systems rely on the breakage of the bottom valve to protect the materials transported in the tank after an impact.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a loading and unloading protection system, including a tank and a bottom valve installed on the lower side of the tank;

[0006] A welded flange is provided between the tank body and the sea valve.

[0007] A first gasket is provided between the welded flange and the sea valve;

[0008] The lower side of the sea valve is provided with a bend, the lower side of the bend is provided with a tee pipe, the left side of the tee pipe is provided with a ball valve, the right side of the tee pipe is provided with an oil unloading valve, and the upper circular outer wall of the ball valve and the oil unloading valve are provided with handles to control the opening and closing of the ball valve and the oil unloading valve.

[0009] A safety pipe is installed between the bend and the tee.

[0010] Preferably, a second flange is fixedly connected to the lower outer wall of the bend, and a third flange is fixedly connected to the upper outer wall of the safety pipe.

[0011] Preferably, a third gasket is provided between the second flange and the third flange, and a fourth flange is fixedly connected to the lower outer wall of the safety tube.

[0012] Preferably, a fifth flange is fixedly connected to the upper outer wall of the tee pipe, and a fourth gasket is provided between the fourth flange and the fifth flange.

[0013] Preferably, both the ball valve and the unloading valve are provided with a movable rod on their upper sides, and both movable rods are provided with a limit block on their upper sides to restrict the rotation of the handle after they come into contact with the handle.

[0014] Preferably, the upper circular outer walls of the ball valve and the unloading valve are both fixedly connected with fixing rods, and the upper outer walls of the two fixing rods are provided with guide grooves to restrict the direction of the moving rods.

[0015] Preferably, the outer circular walls of the two movable rods are provided with a first thread near the lower side, and the inner circular walls of the two guide grooves are provided with a second thread near the upper side.

[0016] Preferably, each of the two limiting blocks is provided with a knob on its upper side, so as to drive the movable rod to move up and down and rotate left and right under the action of external force.

[0017] Preferably, a first flange is fixedly connected to the outer wall of the rear end of the bend, and a second gasket is provided between the first flange and the sea valve.

[0018] Preferably, the outer walls of the left and right ends of the tee pipe are fixedly connected to a sixth flange and a seventh flange, respectively, and a fifth gasket and a sixth gasket are respectively provided between the ball valve and the sixth flange and between the unloading valve and the seventh flange.

[0019] Compared with the prior art, the present invention provides a loading and unloading protection system, which has the following beneficial effects:

[0020] 1. By installing a safety pipe, the safety pipe will be damaged or broken after the tanker truck is subjected to a minor impact, thus protecting the safety of the downstream sea valve. This prevents damage or breakage of the sea valve and avoids leakage of the transported material. The time required for repair and material transfer is also greatly reduced, effectively saving time and repair costs. Installing a safety pipe can retain the function and role of the original loading and unloading protection system, and can also protect the sea valve after a minor impact, effectively saving time and repair costs and greatly improving maintenance efficiency.

[0021] 2. By installing a movable rod and a limit block, when the ball valve and unloading valve are not turned to open, the movable rod can be pulled up to make the limit block abut against the side of the handle that can be turned. This prevents accidental opening of the ball valve and unloading valve due to accidental collision, reduces the probability of safety accidents such as material leakage and equipment damage caused by misoperation, and improves the safety of loading and unloading operations. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a loading and unloading protection system according to the present invention.

[0023] Figure 2 This is a front view structural diagram of a loading and unloading protection system according to the present invention.

[0024] Figure 3 This is a side view of a material loading and unloading protection system according to the present invention.

[0025] Figure 4 This is a partial structural diagram of the limiting block area of ​​this utility model.

[0026] Figure 5 This is a partial structural schematic diagram of the front cross-section of the fixing rod area of ​​this utility model.

[0027] In the diagram: 1. Tank body; 2. Welded flange; 3. First gasket; 4. Bottom valve; 5. Second gasket; 6. First flange; 7. Bend; 8. Second flange; 9. Third gasket; 10. Third flange; 11. Safety pipe; 12. Fourth flange; 13. Fourth gasket; 14. Fifth flange; 15. T-pipe; 16. Sixth flange; 17. Fifth gasket; 18. Ball valve; 19. Seventh flange; 20. Sixth gasket; 21. Unloading valve; 22. Handle; 23. Fixed rod; 24. Movable rod; 25. Limit block; 26. Knob; 27. First thread; 28. Second thread; 29. ​​Guide groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides, for example Figure 1-5 The loading and unloading protection system shown includes a tank body 1 and a sea valve 4 installed on the lower side of the tank body 1;

[0030] A welded flange 2 is installed between the tank body 1 and the sea valve 4;

[0031] A first gasket 3 is provided between the welding flange 2 and the sea valve 4;

[0032] A bend 7 is installed below the bottom valve 4, and a tee pipe 15 is installed below the bend 7. A ball valve 18 is installed on the left side of the tee pipe 15, and an oil discharge valve 21 is installed on the right side of the tee pipe 15. Both the ball valve 18 and the oil discharge valve 21 have handles 22 on their upper circular outer walls to control their opening and closing. Opening the bottom valve 4 allows the material in the tank 1 to flow into the bend 7 under gravity through the bottom valve 4, and then into the tee pipe 15. The material is discharged according to the discharge requirements. Turn the handle 22 of ball valve 18 or unloading valve 21 to open the corresponding valve. If precise control of unloading speed and flow is required, the opening of ball valve 18 or unloading valve 21 can be finely adjusted. After unloading is completed, first close the bottom valve 4 to disconnect the tank 1 from the unloading pipeline. Then, turn the handle 22 of ball valve 18 and unloading valve 21 to close the valve and ensure that the material does not flow out from the unloading port. Finally, the tank 1 is refilled with material through external conveying equipment.

[0033] A safety pipe 11 is installed between the bend 7 and the tee pipe 15. Since the safety pipe 11 is relatively fragile, it will be damaged or broken first under a certain degree of impact force. This can prevent the impact force from being directly transmitted to the bottom valve 4, and prevent the bottom valve 4 from being damaged by impact, thereby ensuring the sealing of the material in the tank 1 and reducing the risk of material leakage.

[0034] like Figure 1 As shown, a second flange 8 is fixedly connected to the lower outer wall of the bend 7, a third flange 10 is fixedly connected to the upper outer wall of the safety pipe 11, a third gasket 9 is provided between the second flange 8 and the third flange 10, a fourth flange 12 is fixedly connected to the lower outer wall of the safety pipe 11, a fifth flange 14 is fixedly connected to the upper outer wall of the tee pipe 15, and a fourth gasket 13 is provided between the fourth flange 12 and the fifth flange 14.

[0035] The second flange 8 on the lower outer wall of the bend 7 and the third flange 10 on the upper outer wall of the safety pipe 11 cooperate with each other, and the fourth flange 12 on the lower outer wall of the safety pipe 11 and the fifth flange 14 on the upper outer wall of the tee pipe 15 cooperate with each other. The corresponding flanges are tightly connected together by bolts. The third gasket 9 between the second flange 8 and the third flange 10, and the fourth gasket 13 between the fourth flange 12 and the fifth flange 14, play a sealing role. When the flanges are tightened by bolts, the gaskets are squeezed and undergo elastic deformation, filling the tiny gaps between the flange connection surfaces and preventing material leakage.

[0036] like Figure 4 and Figure 5As shown, both the ball valve 18 and the unloading valve 21 are provided with movable rods 24 on their upper sides. Each movable rod 24 is provided with a limit block 25 on its upper side to restrict the rotation of the handle 22 after it comes into contact with the handle 22. The upper circular outer walls of both the ball valve 18 and the unloading valve 21 are fixedly connected with fixed rods 23. The upper outer walls of both fixed rods 23 are provided with guide grooves 29 to restrict the direction of the movable rods 24. The circular outer walls of both movable rods 24 are provided with first threads 27 near the lower side. The circular inner walls of both guide grooves 29 are provided with second threads 28 near the upper side. Each limit block 25 is provided with a knob 26 on its upper side to drive the movable rods 24 to move up and down and rotate left and right under the action of external force.

[0037] When there is no need to turn the handle 22, grasp the knob 26 to move the movable rod 24 upward. After moving upward a certain distance, it will encounter resistance and cannot move upward further. Then, by rotating the knob 26, the movable rod 24 will be rotated, so that the first thread 27 on the movable rod 24 and the second thread 28 on the inner wall of the guide groove 29 are screwed together. At this time, the limiting block 25 abuts against one end of the handle 22, preventing the handle 22 from rotating. When the knob 26 drives the movable rod 24 to rotate, it will not drive the limiting block 25 to rotate. The limiting block 25 has an opening inside so that the knob 26 can be directly connected to the movable rod 24.

[0038] like Figure 1 As shown, a first flange 6 is fixedly connected to the outer wall of the rear end of the bend 7. A second gasket 5 is provided between the first flange 6 and the bottom valve 4. The outer walls of the left and right ends of the tee pipe 15 are fixedly connected to a sixth flange 16 and a seventh flange 19, respectively. A fifth gasket 17 and a sixth gasket 20 are provided between the ball valve 18 and the sixth flange 16 and between the unloading valve 21 and the seventh flange 19, respectively.

[0039] The first flange 6 on the outer wall of the rear end of the bend 7 is connected to the bottom valve 4. The sixth flange 16 and the seventh flange 19 on the outer walls of the left and right ends of the tee pipe 15 are connected to the ball valve 18 and the unloading valve 21, respectively. The second gasket 5 between the first flange 6 and the bottom valve 4, the fifth gasket 17 between the ball valve 18 and the sixth flange 16, and the sixth gasket 20 between the unloading valve 21 and the seventh flange 19 all serve a sealing function and prevent material leakage.

[0040] The implementation principle of this embodiment is as follows: Open the bottom valve 4, allowing the material in the tank 1 to flow into the bend 7 under gravity through the bottom valve 4, and then into the tee pipe 15. According to the unloading requirements, turn the handle 22 of the ball valve 18 or the unloading valve 21 to open the corresponding valve. If precise control of the unloading speed and flow rate is required, the opening of the ball valve 18 or the unloading valve 21 can be finely adjusted. After unloading is completed, first close the bottom valve 4 to disconnect the tank 1 from the unloading pipeline. Then, turn the handle 22 of the ball valve 18 and the unloading valve 21 to close the valve, ensuring that the material will not flow out from the unloading port. Finally, the tank 1 is refilled with material through external conveying equipment. Since the safety pipe 11 is relatively fragile, it will be damaged or broken first under a certain degree of impact force, which can prevent the impact force from being directly transmitted to the bottom valve 4, preventing the bottom valve 4 from being damaged by impact, thereby ensuring the sealing of the material in the tank 1 and reducing the risk of material leakage.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A loading and unloading protection system, comprising a tank (1) and a bottom valve (4) installed on the underside of the tank (1); A welded flange (2) is provided between the tank body (1) and the sea valve (4); A first gasket (3) is provided between the welding flange (2) and the sea valve (4); The lower side of the sea valve (4) is provided with a bend (7), the lower side of the bend (7) is provided with a three-way pipe (15), the left side of the three-way pipe (15) is provided with a ball valve (18), the right side of the three-way pipe (15) is provided with an oil unloading valve (21), and the upper circular outer wall of the ball valve (18) and the oil unloading valve (21) are provided with handles (22) to control the opening and closing of the ball valve (18) and the oil unloading valve (21); Its features are: A safety pipe (11) is provided between the bend (7) and the tee (15).

2. The loading and unloading protection system according to claim 1, characterized in that: The lower end of the bend (7) is fixedly connected to a second flange (8), and the upper end of the safety pipe (11) is fixedly connected to a third flange (10).

3. The loading and unloading protection system according to claim 2, characterized in that: A third gasket (9) is provided between the second flange (8) and the third flange (10), and a fourth flange (12) is fixedly connected to the lower outer wall of the safety pipe (11).

4. The loading and unloading protection system according to claim 3, characterized in that: The upper outer wall of the tee pipe (15) is fixedly connected to a fifth flange (14), and a fourth gasket (13) is provided between the fourth flange (12) and the fifth flange (14).

5. The loading and unloading protection system according to claim 1, characterized in that: Both the ball valve (18) and the unloading valve (21) are provided with movable rods (24) on their upper sides. Both movable rods (24) are provided with limit blocks (25) on their upper sides to restrict the rotation of the handle (22) after they come into contact with the handle (22).

6. The loading and unloading protection system according to claim 1, characterized in that: The upper circular outer walls of the ball valve (18) and the unloading valve (21) are both fixedly connected with fixed rods (23), and the upper outer walls of the two fixed rods (23) are provided with guide grooves (29) to restrict the direction of the movable rod (24).

7. The loading and unloading protection system according to claim 6, characterized in that: The two movable rods (24) have a first thread (27) on their circular outer walls near the lower side, and the two guide grooves (29) have a second thread (28) on their circular inner walls near the upper side.

8. The loading and unloading protection system according to claim 5, characterized in that: Both of the limiting blocks (25) are provided with knobs (26) on their upper sides, so that the movable rod (24) can be moved up and down and rotated left and right under the action of external force.

9. A loading and unloading protection system according to claim 1, characterized in that: The outer wall of the rear end of the bend (7) is fixedly connected to a first flange (6), and a second gasket (5) is provided between the first flange (6) and the sea valve (4).

10. A loading and unloading protection system according to claim 1, characterized in that: The outer walls of the left and right ends of the three-way pipe (15) are fixedly connected to the sixth flange (16) and the seventh flange (19), respectively. The ball valve (18) and the sixth flange (16) are respectively provided with the fifth gasket (17) and the sixth gasket (20) between the unloading valve (21) and the seventh flange (19).

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