Compensation device suitable for expansion of tightening belt of four-type bottle

Abstract

The utility model relates to a compensation device suitable for expansion of a four-type bottle tightening belt, which is characterized in that a frame is divided into multiple layers, a four-type bottle base is arranged on a cross beam on each layer, and ear handles are arranged on two sides of the four-type bottle base; the four-type bottle is placed on the four-type bottle base, a tightening belt is arranged through a lug handle, bolts are arranged at the two ends of the tightening belt, the four-type bottle is fixed to the four-type bottle base through the lug handle, a compensation device is arranged between the bolts at the two ends of the tightening belt and the lug handle, and the compensation device is a buffering component. The structure of the buffer block component is that metal cushion blocks and rubber bodies are alternately arranged; the buffering component is formed by alternately arranging metal cushion blocks and rubber bodies, and at the moment, the metal cushion blocks can play a powerful supporting role and cannot lose efficacy; the elastic effect of the rubber body is matched with the elastic compensation of the metal cushion block, the pressure bearing torque ranges from 50N / m to 170N / m, and the pressure bearing device is designed and produced according to product requirements, so that the requirements of locking force of the product and expansion compensation during gas filling of a gas cylinder are met.

Description

Technical Field

[0001] The utility model relates to the technical field of gas cylinders, and specifically relates to a compensation device suitable for the expansion of the tightening band of a type IV cylinder. Background Art

[0002] During the inflation process of type IV cylinders (CNG 20 MPA) and hydrogen cylinders (35 MPA), the diameter of the gas cylinder will increase with the increase of the air pressure, and the expansion coefficient of the gas cylinder diameter is about 5‰.

[0003] Application Publication No. CN104118349A discloses a gas cylinder fixing support frame, in which a buffer block is arranged in the accommodating groove, which solves the problem that sharp points are likely to appear at the contact part between the support frame and the gas cylinder, resulting in excessive local stress on the gas cylinder and causing damage to the gas cylinder, bringing great losses to users, and there are certain potential safety hazards; this patent document cannot solve the problem of compensation for gas cylinder expansion.

[0004] Authorized Publication No. CN 105128656 B relates to a multi-layer CNG gas cylinder layout structure, and the U-shaped bolt tightening band includes a U-shaped bolt and a rubber ring sleeved outside the U-shaped bolt; the radius of the lower arc of the U-shaped bolt is greater than the radius of the upper gas cylinder, and the inner side of the U-shaped bolt is closely fitted with the outer side of the upper gas cylinder; although this patent document can solve the problem of compensation for the expanded gas cylinder to a certain extent, the aging of the rubber will cause failure, and the service life of this product is five years and it needs to be replaced every five years, so its safety problem has not been solved, nor can it solve the problems of dynamic stiffness and static stiffness.

[0005] Authorized Publication No. CN 205009984 U discloses a double gas cylinder fixing bracket for natural gas vehicles, and rubber buffer blocks are respectively arranged on the bracket bases at both ends of each fixing and adjusting band, which has good seismic and anti-vibration performance; the fixing and adjusting hoop band is detachable and adjustable, easy to install, and the operation is flexible, suitable for various specifications and vehicle models, and has strong versatility.

[0006] Authorized Publication No. CN 206036661 U provides a fixing frame for a hydraulic CNG gas cylinder, and a buffer block is arranged on the inner side of the side fixing arm.

[0007] The technical solutions provided by the above patent documents solve the problems of shock absorption and buffering to a certain extent, but the expansion compensation of type IV cylinders (CNG 20 MPA) and hydrogen cylinders (35 MPA) cannot be completely solved. At the same time, due to the problems of dynamic stiffness and static stiffness during vehicle driving, they cannot be overcome. Utility Model Content

[0008] In view of the defects existing in the prior art, the utility model provides a compensation device applicable to the expansion of the tightening band of a type-IV cylinder, realizing the expansion compensation of the gas cylinder, overcoming the problems of dynamic stiffness and static stiffness that still exist during vehicle driving, reducing the manufacturing cost, and improving the safety factor.

[0009] To this end, the technical solution of the utility model is that a compensation device applicable to the expansion of the tightening band of a type-IV cylinder includes a frame and a type-IV cylinder. The frame is divided into multiple layers. On the cross beam of each layer, a type-IV cylinder base is provided, and ear handles are arranged on both sides of the type-IV cylinder base. The type-IV cylinder is placed on the type-IV cylinder base, and a tightening band is also provided through the ear handles. Bolts are arranged at both ends of the tightening band, and the type-IV cylinder is fixed on the type-IV cylinder base through the ear handles. The characteristic is that a compensation device is arranged between the bolts at both ends of the tightening band and the ear handles. The compensation device is a buffer component, and the structure of the buffer block component is that metal pads and rubber bodies are arranged alternately.

[0010] The effect is that the buffer component is arranged with metal pads and rubber bodies alternately. At this time, the metal pads can play a strong supporting role and will not fail. The elastic effect of the rubber body cooperates with the metal pads for elastic compensation. Its bearing torque ranges from 50 N / m to 170 N / m, and it can be designed and produced according to the product requirements, that is, it meets the locking force requirements of the product and the expansion compensation requirements when the gas cylinder is refueled.

[0011] A further improvement is that the metal pads and rubber bodies in the buffer component are of an integrally formed structure after vulcanization.

[0012] The effect is that the buffer component after vulcanization is of an integrally formed structure, making the entire compensation device an integrally formed structural component, which is not only firm and reliable but also eliminates gaps, achieving gapless compensation during the installation process.

[0013] A further improvement is that arc-shaped structures are arranged on the inner and outer diameters of the rubber body, and a redundant state is formed between the metal pads by the arc-shaped structures.

[0014] The effect is that the redundant state formed by the arc-shaped structures ensures the compression amount during the compression process of the rubber body, thereby ensuring the static stiffness in the static state and the dynamic stiffness during vehicle driving, enabling the compensation to achieve a combination of static and dynamic states, and moreover, as the gas is used up, the compensation is also dynamically managed.

[0015] A further improvement is that the arc-shaped structures are in a concave state on the inner and outer diameters of the rubber body.

[0016] The effect is that the concave state is set to prevent the redundancy after the compression of the rubber body from exceeding the inner and outer diameters of the metal pads.

[0017] A further improvement lies in that: the diameter of the arc-shaped structure is not greater than the height between the two metal pads.

[0018] The effect is that: this size limitation prevents problems such as the rubber body exceeding the outer diameter and inner diameter of the metal pads after compression, resulting in interference, improper assembly, and waste of rubber.

[0019] A further improvement lies in that: the metal pad of the buffer component is made of Q235, with a thickness of 3 - 5 mm. For products with the same torque, the diameter is inversely proportional to the number of layers; that is, the buffer component is a multi-layer structure with 3 - 8 layers and a diameter of 50 - 80 mm.

[0020] The effect is that: the multi-layer structure setting of the buffer component is applicable to various structural products and has versatility.

[0021] A further improvement lies in that: the base of the type-IV bottle is arc-shaped, and an anti-slip or shock-absorbing rubber body is provided on its upper surface; the inner surface of the corresponding tightening band is also provided with an anti-slip or shock-absorbing rubber body.

[0022] The effect is that: the setting of the anti-slip or shock-absorbing rubber body, combined with the compensation device, enables the type-IV bottle to always be firmly fixed to the frame, increasing reliability. Beneficial effects

[0023] The present utility model uses a buffer block as the compensation device, and the structure of the buffer block is that metal pads and rubber bodies are arranged alternately. At this time, the metal pads can play a strong supporting role and will not fail; the elastic effect of the rubber bodies, combined with the metal pads, provides elastic compensation. Its bearing torque ranges from 50 N / m to 170 N / m, and can be designed and produced according to product requirements, that is, it meets both the locking force requirements of the product and the expansion compensation requirements during gas filling of the gas cylinder.

[0024] The present utility model greatly reduces the cost of the product. Taking the 2 * 1080L (type-IV bottle) assembly as an example: selecting a product with a diameter of 70 mm and a height of 50 mm, the unit price is 25 yuan. The cost of each product can be reduced by 60 yuan, the cost of a single set of assembly can be reduced by 480 yuan. Calculated based on an annual production of 2000 sets, the cost can be reduced by 960,000 yuan. Description of the drawings

[0025] Figure 1 is the front view structural diagram of the present utility model;

[0026] Figure 2 is Figure 1 the right view of

[0027] Figure 3 is Figure 2 the enlarged view at A of

[0028] Figure 4 is the structural view of the buffer block in the present utility model;

[0029] In the figure, 1 is the frame, 2 is the four-neck flask, 3 is the base of the four-neck flask, 4 is the ear handle, 5 is the tightening band, 51 is the bolt, and 52 is the anti-slip or shock-absorbing rubber body;

[0030] 6 is the compensation device, 61 is the metal cushion block, 62 is the rubber body, and 63 is the arc-shaped structure. Specific implementation method

[0031] The utility model is shown in Figure - 4. Embodiment 1:

[0032] A compensation device applicable to the expansion of the tightening band of a four-neck flask, comprising a frame 1 and a four-neck flask 2. The frame 1 is arranged in multiple layers. On the crossbeam of each layer, there is a base 3 of the four-neck flask, and ear handles 4 are provided on both sides of the base 3 of the four-neck flask; the four-neck flask 2 is placed on the base 3 of the four-neck flask, and a tightening band 5 is also provided through the ear handles 4. Bolts 51 are provided at both ends of the tightening band 5, and the four-neck flask 2 is fixed on the base 3 of the four-neck flask through the ear handles 4. A compensation device 6 is arranged between the bolts 51 at both ends of the tightening band 5 and the ear handles 4. The compensation device 6 is a buffer component, and the structure of the buffer block component is that metal cushion blocks 61 and rubber bodies 62 are arranged alternately.

[0033] The effect is that: the buffer component is arranged with metal cushion blocks 61 and rubber bodies 62 alternately. At this time, the metal cushion blocks 61 can play a strong supporting role and will not fail; the elastic effect of the rubber bodies 62 is combined with the metal cushion blocks 61 for elastic compensation, and its bearing torque ranges from 50 N / m to 170 N / m, which can be designed and produced according to product requirements, that is, it meets the locking force requirement of the product and the expansion compensation requirement during gas cylinder refueling.

[0034] The metal cushion blocks 61 and rubber bodies 62 in the buffer component are of an integrally formed structure after vulcanization.

[0035] The vulcanized buffer component is of an integrally formed structure, making the entire compensation device 6 an integrally formed structural component, which is not only firm and reliable but also eliminates gaps, achieving gapless compensation during the installation process.

[0036] The inner and outer diameters of the rubber body 62 are provided with an arc-shaped structure 63, and the arc-shaped structure 63 forms a redundant state between the metal cushion blocks 61.

[0037] At this time, the redundant state formed by the arc-shaped structure 63 ensures the compression amount during the compression process of the rubber body 62, thereby ensuring the static stiffness in the static state and the dynamic stiffness during vehicle driving, enabling the compensation to achieve a combination of static and dynamic states, and as the gas is used up, the compensation also follows dynamic management.

[0038] The arc-shaped structure 63 is in a sunken state on the inner and outer diameters of the rubber body 62.

[0039] The sunken state is set to prevent the redundancy after the compression of the rubber body 62 from exceeding the inner and outer diameters of the metal spacer 61.

[0040] The diameter of the arc-shaped structure 63 is not greater than the height between the two metal spacers 61.

[0041] The limitation of this dimension prevents problems such as the rubber body 62 exceeding the outer and inner diameters of the metal spacer 61 after compression, resulting in misalignment during assembly and waste of rubber.

[0042] In the buffer component, the metal spacer 61 is made of Q235, with a thickness of 3 - 5 mm. For products with the same torque, the diameter is inversely proportional to the number of layers; that is, the buffer component is a multi-layer structure with 3 - 8 layers and a diameter of 50 - 80 mm.

[0043] The multi-layer structure of the buffer component is applicable to various structural products and has universality.

[0044] The base 3 of the type-IV bottle is arc-shaped, and an anti-slip or shock-absorbing rubber body 52 is provided on its upper surface; the inner surface of the corresponding tightening band 5 is also provided with an anti-slip or shock-absorbing rubber body 52.

[0045] The setting of the anti-slip or shock-absorbing rubber body 52 cooperates with the compensation device 6, enabling the type-IV bottle 2 to always be fastened to the frame 1, increasing reliability. Embodiment 2:

[0046] The compensation device 6 may alternatively be a spring component.

[0047] The spring component is relatively easy to manufacture, but has a high cost, and at the same time, the dynamic and static stiffness cannot meet the requirements.

Claims

1. A compensation device applicable to the expansion of the tightening belt for a four-type bottle, comprising a frame (1) and a four-type bottle (2). The frame (1) is arranged in multiple layers. On the crossbeam of each layer, a four-type bottle base (3) is provided, and ear handles (4) are arranged on both sides of the four-type bottle base (3). The four-type bottle (2) is placed on the four-type bottle base (3), and a tightening belt (5) is also provided through the ear handles (4). Bolts (51) are provided at both ends of the tightening belt (5), and the four-type bottle (2) is fixed on the four-type bottle base (3) through the ear handles (4). It is characterized in that: A compensation device (6) is provided between the bolts (51) at both ends of the tightening band (5) and the ear handles (4), wherein the compensation device (6) is a buffer component, and the structure of the buffer block component is that metal pads (61) and rubber bodies (62) are arranged alternately.

2. The compensation device applicable to the expansion of the four-type bottle tightening belt according to claim 1, wherein: The metal pads (61) and the rubber bodies (62) in the buffer component are of an integrally formed structure after vulcanization.

3. A compensation device applicable to the expansion of the tightening band for type-IV bottles according to claim 1 or 2, characterized in that: Arc-shaped structures (63) are provided on the inner and outer diameters of the rubber body (62), and the arc-shaped structures (63) are in a redundant state between the metal pads (61).

4. A compensation device applicable to the expansion of the tightening band for a type-IV bottle, characterized in that: The arc-shaped structures (63) are in a concave state on the inner and outer diameters of the rubber body (62).

5. A compensation device applicable to the expansion of the tightening band for a Type-IV bottle, characterized in that: The diameter of the arc-shaped structures (63) is not greater than the height between two metal pads (61).

6. The compensation device for the expansion of the four-type bottle tight hoop belt according to claim 1, characterized in that: The material of the metal pads (61) in the buffer component is Q235, and its thickness is 3-5 mm. For products with the same torque, the diameter is inversely proportional to the number of layers; that is, the buffer component is a multi-layer structure with 3-8 layers, and its diameter is 50-80 mm.

7. A compensation device applicable to the expansion of the tight hoop for a type-IV bottle, characterized in that: The base (3) of the type-IV bottle is arc-shaped, and an anti-slip or shock-absorbing rubber body (52) is provided on its upper surface; correspondingly, an anti-slip or shock-absorbing rubber body (52) is also provided on the inner surface of the tightening band (5).

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