Liquefied natural gas storage cylinder for large truck

Abstract

The utility model relates to the technical field of liquefied natural gas storage bottles, and discloses a liquefied natural gas storage bottle for a large truck, which comprises a bottle body, the outer wall of the bottle body is fixedly connected with a fixed box, an inner groove is arranged inside the fixed box, the inside of the fixed box is slidably connected with a sliding column, the bottom end of the sliding column is fixedly connected with a rectangular block, and the bottom end of the rectangular block is fixedly connected with an outer groove. And the outer wall of the rectangular block is slidably connected with the inner wall of the inner groove, the upper surface of the rectangular block is fixedly connected with a hoisting block, the outer wall of the hoisting block is provided with a hoisting hole, and the outer wall of the sliding column is slidably connected with a spring. According to the hoisting device, during hoisting, the sliding column moves upwards to drive the hoisting rope to slide on the inner wall of the fixing block until the limiting block II and the fixing block are pulled to spring each other, so that a part of tensile force generated in the hoisting process can be dispersed to the fixing block, the effect of increasing stress points in the hoisting process is achieved, the pressure can be dispersed, and the hoisting efficiency is improved. And the posture of the hoisted object in the space is more stable, and the safety in the hoisting process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquefied natural gas storage cylinders, in particular to a liquefied natural gas storage cylinder for large trucks. Background Art

[0002] With the continuous improvement of the global attention to environmental protection, the energy structure is transforming from traditional highly polluting fossil fuels to clean energy. As a relatively clean energy, liquefied natural gas (LNG) produces significantly less emissions of pollutants such as carbon dioxide, nitrogen oxides, and particulate matter during combustion compared to traditional fuels such as diesel. In the field of transportation, especially in the large truck transportation industry, using an LNG storage cylinder as a fuel storage device helps reduce exhaust pollution during road transportation and meets the environmental protection policy requirements of the country and the world.

[0003] During the manufacturing or modification of large trucks, it is necessary to install a liquefied natural gas (LNG) storage cylinder at a designated position on the vehicle. Due to the large volume and heavy weight of the storage cylinder, it is impossible to complete the installation by manual handling. Hoisting is an effective way to accurately place it on the installation bracket specially designed on the vehicle chassis or body.

[0004] In the prior art, a simple hoisting connection method is usually used, with only one or two lifting lugs provided for the liquefied natural gas storage cylinder to complete hoisting. The stress points are fewer, and the pressure is likely to concentrate on a few parts, easily leading to excessive local stress, increasing the risk of component damage or failure caused by excessive local pressure, and reducing the safety during the hoisting process. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a liquefied natural gas storage cylinder for large trucks, aiming to improve the problems in the prior art that focus on a simple hoisting connection method, with fewer stress points, easy pressure concentration on a few parts, increasing the risk of component damage or failure caused by excessive local pressure, and reducing the safety during the hoisting process.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] Liquefied natural gas storage cylinder for large trucks, including a cylinder body, a fixed box is fixedly connected to the outer wall of the cylinder body, an inner groove is opened inside the fixed box, a sliding column is slidably connected inside the fixed box, a rectangular block is fixedly connected to the bottom end of the sliding column, the outer wall of the rectangular block is slidably connected to the inner wall of the inner groove, a lifting block is fixedly connected to the upper surface of the rectangular block, a lifting hole is opened on the outer wall of the lifting block, a spring is slidably connected to the outer wall of the sliding column, one end of the spring is fixedly connected to the upper surface of the rectangular block, the other end of the spring is fixedly connected to the inner wall of the inner groove, a first limiting block is fixedly connected to the top end of the sliding column, a lifting rope is fixedly connected to the outer wall of the sliding column, a fixing block is slidably connected to the outer wall of the lifting rope, the lower surface of the fixing block is fixedly connected to the upper surface of the fixed box, a second limiting block is fixedly connected to the outer wall of the lifting rope, and a support assembly is arranged on the outer wall of the cylinder body.

[0008] Preferably, the support assembly includes a first support block, the inner wall of the first support block is fixedly connected to the outer wall of the cylinder body, and a support seat is fixedly connected to the outer wall of the first support block.

[0009] Preferably, a rotating column is rotatably connected inside the support seat, and a hand wheel is fixedly connected to the outer wall of the rotating column.

[0010] Preferably, a gear is fixedly connected to the outer wall of the rotating column, and a rack is meshed with the outer wall of the gear.

[0011] Preferably, the outer wall of the rack is slidably connected to the inner wall of the support seat, and a sliding block is fixedly connected to the outer wall of the rack.

[0012] Preferably, the outer wall of the sliding block is slidably connected to the inner wall of the support seat, and a movable support block is fixedly connected to the outer wall of the sliding block.

[0013] Preferably, a limiting groove is opened on the inner wall of the support seat.

[0014] Preferably, a limiting column is fixedly connected to the outer wall of the sliding block, and the outer wall of the limiting column is slidably connected to the inner wall of the limiting groove.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, when lifting, the upward movement of the sliding column will drive the lifting rope to slide inside the fixing block until the second limiting block and the fixing block are separated by the spring, which can disperse a part of the pulling force generated during the lifting process to the fixing block, achieving the effect of increasing the stress points during the lifting process, thereby dispersing the pressure, making the posture of the object being lifted more stable in space, and improving the safety during the lifting process.

[0017] 2. In the present utility model, rotating the handwheel causes the rotating column to rotate inside the support base and drives the gear to rotate. When the gear rotates, it causes the rack to slide and move outward along the inner wall of the support base. As a result, the sliding block slides outward along the inner wall of the support base and drives the movable support block to move outward, achieving an expansion of the support range. Thus, the effect of adjusting and expanding the support range is achieved, which can evenly disperse the pressure, reduce the swaying and vibration during transportation, enhance stability, and improve safety.

[0018] 3. In the present utility model, when hoisting is not in progress, the spring will push the rectangular block and drive the hoisting block to hide inside the fixed box, reducing the possibility of collision with external objects during vehicle operation and effectively avoiding the risk caused by accidental collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional view of the liquefied natural gas storage cylinder for large trucks proposed by the present utility model;

[0020] Figure 2 is a schematic cross-sectional view of the internal structure of the fixed box of the liquefied natural gas storage cylinder for large trucks proposed by the present utility model;

[0021] Figure 3 is a schematic cross-sectional view of the internal structure of the support base of the liquefied natural gas storage cylinder for large trucks proposed by the present utility model.

[0022] LEGEND DESCRIPTION:

[0023] 1. Cylinder body; 2. Fixed box; 3. Inner groove; 4. Spring; 5. Slide column; 6. Rectangular block; 7. Hoisting block; 8. Hoisting hole; 9. Limiting block 1; 10. Fixed block; 11. Hoisting rope; 12. Limiting block 2; 13. Support block 1; 14. Support base; 15. Rotating column; 16. Handwheel; 17. Gear; 18. Rack; 19. Sliding block; 20. Movable support block; 21. Limiting groove; 22. Limiting column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Refer to Figure 1 - Figure 2, an embodiment provided by the utility model: a liquefied natural gas storage cylinder for large trucks, including a cylinder body 1, a fixed box 2 is fixedly connected to the outer wall of the cylinder body 1, an inner groove 3 is opened inside the fixed box 2, a sliding column 5 is slidably connected inside the fixed box 2, a rectangular block 6 is fixedly connected to the bottom end of the sliding column 5, the outer wall of the rectangular block 6 is slidably connected to the inner wall of the inner groove 3, a lifting block 7 is fixedly connected to the upper surface of the rectangular block 6, a lifting hole 8 is opened on the outer wall of the lifting block 7, a spring 4 is slidably connected to the outer wall of the sliding column 5, one end of the spring 4 is fixedly connected to the upper surface of the rectangular block 6, the other end of the spring 4 is fixedly connected to the inner wall of the inner groove 3, a limiting block one 9 is fixedly connected to the top end of the sliding column 5, a lifting rope 11 is fixedly connected to the outer wall of the sliding column 5, a fixing block 10 is slidably connected to the outer wall of the lifting rope 11, the lower surface of the fixing block 10 is fixedly connected to the upper surface of the fixed box 2, a limiting block two 12 is fixedly connected to the outer wall of the lifting rope 11, and a support assembly is arranged on the outer wall of the cylinder body 1;

[0026] Specifically, the cylinder body 1 is fixedly connected to the fixed box 2. The cylinder body 1 can fix the fixed box 2. The lifting device can be connected to the cylinder body 1 through the lifting block 7 and the lifting hole 8. The spring 4 can push the rectangular block 6. When not being lifted, the spring 4 will push the rectangular block 6 to drive the spring 4 to hide inside the fixed box 2, reducing the possibility of collision with external objects during vehicle operation and effectively avoiding the risk caused by accidental collision. The sliding column 5 can fix the lifting rope 11. The limiting block two 12 can limit the movement of the lifting rope 11. When lifting, the fixing block 10 provides an additional force-bearing point, which can disperse the pressure and make the posture of the object being lifted more stable in space, improving the safety during the lifting process.

[0027] Refer to Figure 1 , the support assembly includes a support block one 13, the inner wall of the support block one 13 is fixedly connected to the outer wall of the cylinder body 1, and a support seat 14 is fixedly connected to the outer wall of the support block one 13.

[0028] Specifically, the support assembly can support the cylinder body 1, provide stable support force, and ensure that the cylinder body 1 can be safely placed on the vehicle during vehicle stationary or driving.

[0029] Refer to Figure 1 and Figure 3, a rotating column 15 is rotatably connected inside the support base 14, and a hand wheel 16 is fixedly connected to the outer wall of the rotating column 15; a gear 17 is fixedly connected to the outer wall of the rotating column 15, and a rack 18 is meshed with the outer wall of the gear 17; the outer wall of the rack 18 is slidably connected to the inner wall of the support base 14, and a sliding block 19 is fixedly connected to the outer wall of the rack 18; the outer wall of the sliding block 19 is slidably connected to the inner wall of the support base 14, and a movable support block 20 is fixedly connected to the outer wall of the sliding block 19; a limiting groove 21 is formed in the inner wall of the support base 14; a limiting post 22 is fixedly connected to the outer wall of the sliding block 19, and the outer wall of the limiting post 22 is slidably connected to the inner wall of the limiting groove 21;

[0030] Specifically, the limiting post 22 can limit the movement of the sliding block 19, preventing the sliding block 19 from sliding out of the inner wall of the support base 14 during the process of sliding on the inner wall of the support base 14. The hand wheel 16 is used to provide a force application point, and the rotating column 15 is used to transmit the rotational force. By rotating the hand wheel 16, the rotating column 15 can be rotated inside the support base 14 to rotate the gear 17, thereby causing the rack 18 to slide on the inner wall of the support base 14 and pushing the sliding block 19 to slide on the inner wall of the support base 14, driving the movable support block 20 to move outward to achieve an expansion of the support range.

[0031] Working principle: When hoisting the natural gas storage cylinder, use a hook to pass through the hoisting hole 8 to form a connection with the hoisting block 7, and then hoist. During the hoisting process, the hoisting block 7 will drive the rectangular block 6 to slide on the inner wall of the inner groove 3 formed inside the fixed box 2 and move upward. Thus, the rectangular block 6 drives the sliding column 5 to slide upward inside the fixed box 2 and drives the first limiting block 9 to move upward, while causing the spring 4 slidably connected to the outer wall of the sliding column 5 to be stressed and contract. During the upward movement of the sliding column 5, the sliding column 5 will drive the lifting rope 11 to slide on the inner wall of the fixed block 10 until the second limiting block 12 is pulled into contact with the fixed block 10, which can disperse a part of the pulling force generated during the hoisting process to the fixed block 10, achieving the effect of increasing the force application points during the hoisting process. Furthermore, the pressure can be dispersed, making the posture of the object being hoisted more stable in space, improving the safety during the hoisting process. When it is necessary to adjust the support range of the natural gas storage cylinder, the hand wheel 16 can be rotated to cause the rotating column 15 to rotate inside the support base 14 and drive the gear 17 to rotate. When the gear 17 rotates, it will cause the rack 18 to slide outward on the inner wall of the support base 14. Thus, the sliding block 19 slides outward on the inner wall of the support base 14 and drives the movable support block 20 to move outward to achieve an expansion of the support range, thereby achieving the effect of adjusting and expanding the support range, which can evenly disperse the pressure, reduce the shaking and vibration during transportation, enhance the stability, and improve the safety.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A liquefied natural gas storage cylinder for a large truck, comprising a cylinder body (1), characterized in that: The outer wall of the bottle body (1) is fixedly connected to a fixing box (2), an inner groove (3) is provided inside the fixing box (2), a sliding column (5) is slidably connected inside the fixing box (2), a rectangular block (6) is fixedly connected to the bottom end of the sliding column (5), an outer wall of the rectangular block (6) is slidably connected to the inner wall of the inner groove (3), a hanging block (7) is fixedly connected to the upper surface of the rectangular block (6), a hanging hole (8) is provided on the outer wall of the hanging block (7), a spring (4) is slidably connected to the outer wall of the sliding column (5), and the spring (4) One end of the spring (4) is fixedly connected to the upper surface of the rectangular block (6), the other end of the spring (4) is fixedly connected to the inner wall of the inner groove (3), the top of the sliding column (5) is fixedly connected to the limiting block 1 (9), the outer wall of the sliding column (5) is fixedly connected to the hanging rope (11), the outer wall of the hanging rope (11) is slidably connected to the fixed block (10), the lower surface of the fixed block (10) is fixedly connected to the upper surface of the fixed box (2), the outer wall of the hanging rope (11) is fixedly connected to the limiting block 2 (12), and the outer wall of the bottle body (1) is provided with a supporting assembly.

2. The liquefied natural gas storage cylinder for large trucks according to claim 1, characterized in that: The support assembly comprises a support block 1 (13), the inner wall of the support block 1 (13) being fixedly connected to the outer wall of the bottle body (1), and the outer wall of the support block 1 (13) being fixedly connected to a support seat (14).

3. The liquefied natural gas storage cylinder for large trucks according to claim 2, characterized in that: A rotating column (15) is rotatably connected inside the support seat (14), and a hand-turned wheel (16) is fixedly connected to the outer wall of the rotating column (15).

4. The liquefied natural gas storage cylinder for large trucks according to claim 3, characterized in that: A gear (17) is fixedly connected to the outer wall of the rotating column (15), and a rack (18) is meshingly connected to the outer wall of the gear (17).

5. The liquefied natural gas storage cylinder for large trucks according to claim 4, characterized in that: The outer wall of the rack (18) is slidably connected to the inner wall of the support seat (14), and the outer wall of the rack (18) is fixedly connected to a sliding block (19).

6. The liquefied natural gas storage cylinder for large trucks according to claim 5, characterized in that: The outer wall of the sliding block (19) is slidably connected to the inner wall of the support seat (14), and the outer wall of the sliding block (19) is fixedly connected to a movable support block (20).

7. The liquefied natural gas storage cylinder for large trucks according to claim 2, characterized in that: A limiting groove (21) is provided on the inner wall of the support seat (14).

8. The liquefied natural gas storage cylinder for large trucks according to claim 5, characterized in that: The outer wall of the sliding block (19) is fixedly connected to the limiting column (22), and the outer wall of the limiting column (22) is slidably connected to the inner wall of the limiting groove (21).

Images