CNG tube bundle type container shockproof fixed connection structure

By designing arc-shaped clamps and a buffer mechanism, and utilizing viscous damping force and mechanical locking, the vibration problem of CNG gas cylinders during transportation was solved, achieving the effect of reducing fatigue cracks and seal failure, and ensuring transportation safety.

CN224448950UActive Publication Date: 2026-07-03LIAONING ZHONGBANG ENERGY TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIAONING ZHONGBANG ENERGY TECH CO LTD
Filing Date
2025-07-11
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing tubular containerized gas cylinders vibrate due to impacts from bumps, sudden braking, or uneven road surfaces during vehicle operation, leading to pipeline fatigue cracks, seal failure, and gas leakage.

Method used

It adopts an arc-shaped clamping block and a buffer mechanism. The piston plate slides in the sealed cavity to generate viscous damping force, which is combined with spring reset to absorb the impact force. At the same time, the mechanical locking is achieved by the I-shaped block being embedded in the T-shaped groove to prevent the fixed seat from shifting laterally.

Benefits of technology

It effectively reduces the risk of fatigue cracks and seal failure in CNG gas cylinders, ensuring safety and sealing during transportation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224448950U_ABST
    Figure CN224448950U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of CNG pipe bundle type container shockproof fixed connection structure, it is related to pipe bundle type container technical field, including pipe bundle type container body, the lower surface inside the pipe bundle type container body is fixedly connected with two first fixed seat, the top of two the first fixed seat is evenly provided with second fixed seat, the top of two the second fixed seat is fixedly connected with third fixed seat, the upper surface of two the first fixed seat, the upper and lower two surfaces of two the second fixed seat and the lower surface of two third fixed seat are all set with sliding slot, the inside of each sliding slot is slidably provided with arc clamping block. The utility model passes through the sliding of piston plate in sealing cavity, utilizes the viscous damping force generated by the flow of hydraulic oil through fine hole, cooperates with the elastic reset of spring, can effectively absorb the impact force such as jolt, sudden braking in vehicle driving, to significantly reduce the fatigue crack and sealing element failure risk of CNG gas collecting bottle.
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Description

Technical Field

[0001] This utility model relates to the field of tubular container technology, specifically to a shockproof and fixed connection structure for CNG tubular container. Background Technology

[0002] CNG tubular containers are specialized equipment for transporting compressed natural gas. They are mainly composed of multiple high-pressure gas cylinders and are suitable for land transportation of natural gas, especially in areas not yet covered by natural gas pipelines or in temporary gas supply scenarios.

[0003] Among them, a tubular container with announcement number CN209635085U includes a frame and gas cylinders. The gas cylinders are distributed in three layers (upper, middle and lower) within the frame. The outer diameter × length × thickness of the gas cylinder is φ559×11050×15.8mm, and the number of cylinders is 9-12. The upper and lower edges of the bottom crossbeam of the frame are rounded arches.

[0004] However, most existing tubular containers use rigid fixing to fix the two ends of the CNG gas collecting cylinder. Because the CNG gas collecting cylinder is relatively long, the impact force generated by bumps, sudden braking or uneven road surfaces during vehicle operation will cause the CNG gas collecting cylinder to vibrate, which will lead to pipeline fatigue cracks, seal failure or even gas leakage. Utility Model Content

[0005] In view of the problems existing in the above-mentioned tubular container, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a CNG tube bundle type container shockproof fixing connection structure, which solves the problem that the CNG gas collecting cylinder body vibrates due to the impact of bumps, sudden braking or uneven road surface during vehicle driving, which leads to pipeline fatigue cracks, seal failure or even gas leakage in CNG gas collecting cylinder.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A CNG tube bundle type container shockproof fixing connection structure includes a tube bundle type container body. Two first fixing seats are fixedly connected to the lower surface of the inner interior of the tube bundle type container body. A second fixing seat is provided above each of the two first fixing seats. A third fixing seat is fixedly connected above each of the two second fixing seats. Sliding grooves are formed on the upper surface of the two first fixing seats, the upper and lower surfaces of the two second fixing seats, and the lower surface of the two third fixing seats. An arc-shaped clamping block is slidably arranged inside each sliding groove. A CNG gas collecting cylinder is clamped between two corresponding arc-shaped clamping blocks. A sealing cavity is formed at one end of each sliding groove. A buffer mechanism is provided inside each sealing cavity. Each buffer mechanism is matched with the corresponding arc-shaped clamping block.

[0009] Preferably, the buffer mechanism includes multiple piston plates, multiple sealing rubber rings, and multiple sealing rods. Each piston plate is slidably disposed inside a corresponding sealing cavity. Each piston plate has a sealing groove on its side. Each sealing rubber ring is fitted into a corresponding sealing groove. Each sealing rod is fixedly connected to one side of a corresponding piston plate. One end of each sealing rod passes through one side of a corresponding sealing cavity and is fixedly connected to a corresponding arc-shaped clamping block.

[0010] Preferably, a plurality of springs are fixedly connected between the lower surface of each of the sealed cavities and the corresponding piston plate.

[0011] Preferably, T-shaped grooves are provided at both ends above the two first fixing seats, at both ends above and below the two second fixing seats, and at both ends below the two third fixing seats, and I-shaped blocks are engaged inside the corresponding two T-shaped grooves.

[0012] Preferably, each piston plate has multiple micro-holes on its upper surface.

[0013] Preferably, each of the sliding grooves has arc-shaped grooves on both sides, and each arc-shaped groove corresponds to a CNG gas collecting cylinder.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. This utility model utilizes the sliding of the piston plate within the sealed cavity and the viscous damping force generated by the hydraulic oil flowing through the micro-holes, combined with the elastic return of the spring, to effectively absorb the impact forces from bumps and sudden braking during vehicle operation, thereby significantly reducing the risk of fatigue cracks and seal failure in CNG gas cylinders.

[0016] 2. In this utility model, the I-shaped block is embedded in the T-shaped groove of the upper and lower fixed seats to form a mechanical lock, thereby preventing the first fixed seat, the second fixed seat and the third fixed seat from lateral displacement during transportation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 For the present utility model Figure 1 A cross-sectional view of the first fixed seat;

[0020] Figure 3 For the present utility model Figure 1 Enlarged schematic diagram of part A;

[0021] Figure 4 For the present utility model Figure 3 A three-dimensional structural diagram of the piston plate.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Tube bundle type container body, 2. First fixed seat, 3. Second fixed seat, 4. Third fixed seat, 5. Arc-shaped clamp, 6. CNG gas collecting cylinder, 7. Piston plate, 8. Spring, 9. Sealing rubber ring, 10. Sealing rod, 11. I-shaped block. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model discloses a CNG tube bundle type container shockproof fixing connection structure.

[0026] This utility model provides, for example Figure 1-4 The CNG tube bundle type container shockproof fixing connection structure shown includes a tube bundle type container body 1. Two first fixing seats 2 are fixedly connected to the lower surface of the inner interior of the tube bundle type container body 1. A second fixing seat 3 is provided above each of the two first fixing seats 2. A third fixing seat 4 is fixedly connected above each of the two second fixing seats 3. Sliding grooves are provided on the upper surface of the two first fixing seats 2, the upper and lower surfaces of the two second fixing seats 3, and the lower surface of the two third fixing seats 4. An arc-shaped clamping block 5 is slidably arranged inside each sliding groove. A CNG gas collecting cylinder 6 is clamped between two corresponding arc-shaped clamping blocks 5. A sealing cavity is provided at one end of each sliding groove. A buffer mechanism is provided inside each sealing cavity. Each buffer mechanism is matched with the corresponding arc-shaped clamping block 5.

[0027] The tubular container body 1 is a detachable structure. When installing the CNG gas collecting cylinder 6, the CNG gas collecting cylinder 6 is first placed on the upper surface of the two first fixing seats 2, then the two second fixing seats 3 are placed on top of each CNG gas collecting cylinder 6, and then the remaining CNG gas collecting cylinder 6 is placed in. Next, the two third fixing seats 3 are installed on top, and then the side panels and top panels of the tubular container body 1 are installed. During transportation, each arc-shaped clamp 5 fits the body of the corresponding CNG gas collecting cylinder 6, and then, in cooperation with the buffer mechanism, it can play a shock absorption role, preventing the CNG gas collecting cylinder 6 from being damaged due to vibration.

[0028] In order to provide shock absorption for CNG collecting cylinder 6, such as Figure 2-4 As shown, the buffer mechanism includes multiple piston plates 7, multiple sealing rubber rings 9, and multiple sealing rods 10. Each piston plate 7 is slidably disposed inside the corresponding sealing cavity. Each piston plate 7 has a sealing groove on its side. Each sealing rubber ring 9 is fitted into the corresponding sealing groove. Each sealing rod 10 is fixedly connected to one side of the corresponding piston plate 7. One end of each sealing rod 10 passes through one side of the corresponding sealing cavity and is fixedly connected to the corresponding arc-shaped clamping block 5. Multiple springs 8 are fixedly connected between the lower surface of each sealing cavity and the corresponding piston plate 7. Multiple micro-holes are opened on the upper surface of each piston plate 7.

[0029] Each sealed cavity is filled with hydraulic oil. When the CNG gas cylinder 6 is vibrated and shifted, the arc-shaped clamp 5 pushes the sealing rod 10 to drive the piston plate 7 to slide in the sealed cavity. The tiny holes on the piston plate 7 allow the hydraulic oil to flow slowly, generating viscous damping force, thereby playing a role in shock absorption. The sealing rubber ring 9 on the outer surface of the piston plate 7 is embedded in the sealing groove to prevent hydraulic oil leakage and ensure stable damping force.

[0030] To secure the second fixing seat 3 and the third fixing seat 4, as follows: Figure 1-2 As shown, T-shaped grooves are provided at both ends above the two first fixed seats 2, at both ends above and below the two second fixed seats 3, and at both ends below the two third fixed seats 4. I-shaped blocks 11 are engaged inside the corresponding two T-shaped grooves.

[0031] After the second fixing seat 3 and the third fixing seat 4 are installed, each I-shaped block 11 is inserted into the two corresponding T-shaped slots to play a positioning role, so that the second fixing seat 3 and the third fixing seat 4 can be fixed and prevent them from shifting along the length of the CNG gas collecting cylinder 6.

[0032] To facilitate the installation of CNG collecting cylinder 6, such as Figure 1-2 As shown, each chute has an arc-shaped groove on both sides, and each arc-shaped groove corresponds to a CNG gas collecting cylinder 6.

[0033] Each arc-shaped groove facilitates the installation of each CNG gas collecting cylinder 6 and prevents the CNG gas collecting cylinder 6 from being blocked by the side of the arc-shaped groove.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A CNG tube bundle type container shockproof fixing connection structure, comprising a tube bundle type container body (1), characterized in that, The lower surface of the tubular container body (1) is fixedly connected to two first fixed seats (2), and a second fixed seat (3) is provided above each of the two first fixed seats (2). A third fixed seat (4) is fixedly connected above each of the two second fixed seats (3). Slide grooves are provided on the upper surface of the two first fixed seats (2), the upper and lower surfaces of the two second fixed seats (3), and the lower surface of the two third fixed seats (4). An arc-shaped clamping block (5) is slidably arranged inside each slide groove. A CNG gas collecting cylinder (6) is clamped between the two corresponding arc-shaped clamping blocks (5). A sealing cavity is provided at one end of each slide groove. A buffer mechanism is provided inside each sealing cavity. Each buffer mechanism is matched with the corresponding arc-shaped clamping block (5).

2. The CNG tube bundle type container shockproof fixing connection structure according to claim 1, characterized in that, The buffer mechanism includes multiple piston plates (7), multiple sealing rubber rings (9) and multiple sealing rods (10). Each piston plate (7) is slidably disposed inside the corresponding sealing cavity. Each piston plate (7) has a sealing groove on its side. Each sealing rubber ring (9) is sleeved in the corresponding sealing groove. Each sealing rod (10) is fixedly connected to one side of the corresponding piston plate (7). One end of each sealing rod (10) passes through one side of the corresponding sealing cavity and is fixedly connected to the corresponding arc-shaped clamp (5).

3. The CNG tube bundle type container shockproof fixing connection structure according to claim 2, characterized in that, Multiple springs (8) are fixedly connected between the lower surface of each sealed cavity and the corresponding piston plate (7).

4. The CNG tube bundle type container anti-vibration fixed connection structure according to claim 1, characterized in that, T-shaped grooves are provided at both ends above the two first fixing seats (2), at both ends above and below the two second fixing seats (3), and at both ends below the two third fixing seats (4). I-shaped blocks (11) are engaged inside the corresponding two T-shaped grooves.

5. The CNG tube bundle type container shockproof fixing connection structure according to claim 2, characterized in that, Each piston plate (7) has multiple micro-holes on its upper surface.

6. The CNG tube bundle type container shockproof fixing connection structure according to claim 1, characterized in that, Each of the chutes has an arc-shaped groove on both sides, and each arc-shaped groove corresponds to a CNG gas collecting cylinder (6).