A fastening device for a vehicle LNG cylinder

Abstract

This utility model discloses a fastening device for LNG cylinders used in vehicles, relating to the field of new energy vehicle equipment technology, including a fastening mechanism. This utility model, by setting up a detection mechanism, enables real-time detection of the fastening points of the fixed bracket and base. When loosening is detected, an alarm component can promptly sound, thus achieving the effect of automatic tightness detection. This solves the problem that existing fastening devices for LNG cylinders in vehicles mostly use a traditional combination of metal brackets and bolts, lacking an automatic tightness detection mechanism. This requires manual inspection after a certain distance traveled, which is inconvenient. If an inspection is missed and loosening occurs, the cylinder may shift, vibrate, or even fall off, not only affecting the normal supply of LNG but also potentially causing serious safety accidents such as leaks and explosions, thus posing certain safety hazards. This utility model achieves the effect of automatic tightness detection.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle equipment technology, specifically a fastening device for LNG gas cylinders used in vehicles. Background Technology

[0002] With the global energy structure transformation and increasingly stringent environmental protection requirements, liquefied natural gas (LNG), as a clean and efficient new energy source, is being used more and more widely in the commercial vehicle sector. As a core component for storing and supplying LNG, the safe and stable operation of LNG cylinders in vehicles directly affects vehicle driving safety and energy supply efficiency. Currently, LNG cylinders mostly adopt a combination structure of metal brackets and high-strength bolts. The metal brackets are usually customized according to the shape of the cylinder and the installation space. The cylinder is firmly fixed to the bracket with bolts, and then the bracket is connected to the vehicle chassis to achieve rigid constraint on the cylinder. Currently, the fastening devices for LNG cylinders in vehicles mostly adopt a traditional combination of metal brackets and bolts, which do not have a structure for automatically detecting the tightness of the fasteners. It is necessary to get out of the vehicle to check after driving a certain distance, which is very inconvenient. If the check is missed and the cylinder becomes loose, it may cause the cylinder to shift, vibrate, or even fall off. This will not only affect the normal supply of LNG, but may also cause serious safety accidents such as leaks and explosions, thus posing certain safety hazards. Utility Model Content

[0003] To address the problems mentioned in the background art, the purpose of this utility model is to provide a fastening device for LNG cylinders used in vehicles, which has the advantage of automatic detection of tightness. This solves the problem that existing fastening devices for LNG cylinders used in vehicles mostly adopt a traditional combination structure of metal brackets and bolts, which does not have a structure for automatically detecting the tightness of the fastening points. It requires drivers to get out of the vehicle to check after driving a certain distance, which is very inconvenient. If the check is missed and the cylinder becomes loose, it may cause displacement, vibration or even fall off. This will not only affect the normal supply of LNG, but may also cause serious safety accidents such as leakage and explosion, thus posing certain safety hazards.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fastening device for a vehicle LNG cylinder, comprising a fastening mechanism, wherein the fastening mechanism includes two bases, an LNG cylinder is placed on the top of the two bases, a fixing bracket is provided on the top of the bases, a rubber pad is fixedly installed on the inner side of the fixing bracket, and the fixing bracket is fixedly installed to the base by high-strength bolts, and... The testing mechanism is located on the top left side of the base. A reinforcement mechanism is located on both sides of the top outer side of the base.

[0005] In a preferred embodiment of this invention, the detection mechanism includes a detection plate, which is fixedly installed on the left side of the top of the base. An installation groove is provided inside the detection plate, and a detection component is fixedly installed inside the installation groove. A pressing component is fixedly installed on the left side of the bottom of the fixed bracket, and an alarm component is fixedly installed on the bottom of the detection plate.

[0006] As a preferred embodiment of the present invention, the detection component includes a pressure sensor, which is fixedly installed inside the mounting groove.

[0007] In a preferred embodiment of this invention, the pressing component includes a pressing plate, which is fixedly installed on the left side of the bottom of the fixed bracket. A pressing rod is fixedly installed on the bottom of the pressing plate, and the pressing rod is used to press the pressure sensor.

[0008] As a preferred embodiment of the present invention, the alarm component includes a miniature alarm, which is fixedly installed on the bottom of the detection plate.

[0009] As a preferred embodiment of this utility model, the reinforcement mechanism includes reinforcement grooves, which are formed on both sides of the top of the base and both sides of the bottom of the fixed bracket. C-shaped reinforcement plates are inserted into the inside of the reinforcement grooves, and limiting components are engaged on both sides of the top of the base.

[0010] As a preferred embodiment of this utility model, the limiting component includes a locking block, and the base, the fixing bracket and the C-shaped reinforcing plate are all provided with locking slots, and the locking block can be locked and fixed with the locking slots.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting up a detection mechanism, enables real-time detection of the tightness of the fixed bracket and base. When loosening occurs, an alarm component can be activated in time, thus achieving the effect of automatic detection of tightness. This solves the problem that existing vehicle LNG cylinder fastening devices mostly use traditional metal bracket and bolt combination structures, which do not have a structure for automatic detection of tightness. It requires manual inspection after driving a certain distance, which is very inconvenient. If the inspection is missed, the cylinder may shift, vibrate, or even fall off, which will not only affect the normal supply of LNG, but may also cause serious safety accidents such as leakage and explosion, thus posing certain safety hazards. This invention achieves the effect of automatic detection of tightness.

[0012] 2. This utility model enables the pressure sensor to conveniently detect tightness in real time by setting up a detection mechanism. When an abnormality is detected, the miniature alarm can issue an alarm in time, thereby achieving the effect of automatic detection of tightness.

[0013] 3. By setting up a reinforcement mechanism, this utility model can effectively constrain the fixed bracket from the side. Combined with the axial fixation of high-strength bolts, it significantly improves the overall vibration resistance and deformation resistance of the fastening device. Especially when the vehicle accelerates, brakes or turns suddenly, it can effectively prevent relative displacement between the fixed bracket and the base. Attached Figure Description

[0014] Figure 1 This is a first-person perspective three-dimensional structural diagram of the present invention. Figure 2 This is a schematic diagram of the overall three-dimensional structure from a second-person perspective; Figure 3 This is a schematic diagram of a third-person perspective structure. Figure 4 This is a schematic diagram of a fourth-person perspective structure.

[0015] In the diagram: 1. Fastening mechanism; 101. Base; 102. LNG cylinder; 103. Fixing bracket; 104. Rubber pad; 2. Detection mechanism; 201. Detection plate; 202. Mounting groove; 203. Detection component; 203a. Pressure sensor; 204. Pressing component; 204a. Pressing plate; 204b. Pressing rod; 205. Alarm component; 205a. Miniature alarm; 3. Reinforcing mechanism; 301. Reinforcing groove; 302. C-shaped reinforcing plate; 303. Limiting component; 303a. Locking block; 303b. Locking slot. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0019] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0020] Example 1, refer to Figure 1-4 This is the first embodiment of the present invention, providing a fastening device for a vehicle LNG cylinder, including a fastening mechanism 1. The fastening mechanism 1 includes two bases 101, with an LNG cylinder 102 placed on top of the two bases 101. A fixing bracket 103 is provided on the top of the base 101, and a rubber pad 104 is fixedly installed on the inner side of the fixing bracket 103. The fixing bracket 103 is fixedly installed to the base 101 by high-strength bolts. Testing mechanism 2 is located on the top left side of base 101. The reinforcement mechanism 3 is located on both sides of the top outer side of the base 101. The detection mechanism 2 includes a detection plate 201, which is fixedly installed on the left side of the top of the base 101. The detection plate 201 has an installation groove 202 inside, and a detection component 203 is fixedly installed inside the installation groove 202. A pressing component 204 is fixedly installed on the left side of the bottom of the fixed bracket 103. An alarm component 205 is fixedly installed on the bottom of the detection plate 201. The detection component 203 includes a pressure sensor 203a, which is fixedly installed inside the installation groove 202. The pressing component 204 includes a pressing plate 204a, which is fixedly installed on the left side of the bottom of the fixed bracket 103. A pressing rod 204b is fixedly installed on the bottom of the pressing plate 204a. The pressing rod 204b is used to press the pressure sensor 203a. The alarm component 205 includes a miniature alarm 205a, which is fixedly installed on the bottom of the detection plate 201.

[0021] Specifically, the detection mechanism 2 enables the pressure sensor 203a to conveniently detect tightness in real time. When an abnormality is detected, the miniature alarm 205a can issue an alarm in time, thereby achieving the effect of automatic detection of tightness.

[0022] Furthermore, the detection plate 201 is fixed to the top of the left base 101 by welding, forming an integrated structure with the base 101 to ensure detection stability. A pressure sensor 203a (model PT124G-111) is bolted to the mounting slot 202 inside the detection plate 201. This pressure sensor 203a has a measurement range of 0-500N and an accuracy of ±0.5%FS, accurately capturing pressure changes. The lower pressure plate 204a on the bottom left of the fixed bracket 103 is made of steel plate and is welded to the fixed bracket 103. A lower pressure rod 204b is vertically welded to the bottom of the lower pressure plate 204a. After the fixed bracket 103 is fixed to the base 101 by high-strength bolts, the bottom of the lower pressure rod 204b contacts the sensing surface of the pressure sensor 203a. At this time, the initial pressure on the pressure sensor 203a is set to 100-150N, and this pressure value can be finely adjusted by the tightness of the bolts. The miniature alarm 205a, which is fixed to the bottom of 201 by bolts, is powered by DC12V and has a built-in buzzer and LED warning light. The buzzer volume is ≥85dB and the LED warning light is in red flashing mode. The pressure sensor 203a is connected to the control module of the miniature alarm 205a through a wire. The control module has a preset pressure threshold: when the pressure value detected by the pressure sensor 203a is lower than 50N, the fixing bracket 103 is loose, which causes the pressure of the pressure rod 204b on the pressure sensor 203a to decrease. The control module immediately triggers the miniature alarm 205a, the buzzer sounds and the LED light flashes, realizing real-time alarm for loose fastening device.

[0023] In the second embodiment of this utility model, the reinforcing mechanism 3 includes a reinforcing groove 301. The reinforcing groove 301 is formed on both sides of the top of the base 101 and on both sides of the bottom of the fixed bracket 103. A C-shaped reinforcing plate 302 is inserted into the inside of the reinforcing groove 301. Limiting components 303 are snapped into both sides of the top of the base 101. The limiting components 303 include a locking block 303a. The base 101, the fixed bracket 103 and the C-shaped reinforcing plate 302 are all provided with a locking groove 303b. The locking block 303a can be snapped into and fixed with the locking groove 303b.

[0024] Specifically, the reinforcement mechanism 3 can effectively constrain the fixed bracket 103 from the side. Combined with the axial fixation of the high-strength bolts, it significantly improves the overall vibration resistance and deformation resistance of the fastening device. Especially when the vehicle accelerates, brakes or turns suddenly, it can effectively prevent relative displacement between the fixed bracket 103 and the base 101.

[0025] Furthermore, reinforcing grooves 301 are provided on both sides of the top of the base 101 and both sides of the bottom of the fixed bracket 103. The reinforcing grooves 301 are rectangular grooves, and their width matches the thickness of the C-shaped reinforcing plate 302. The C-shaped reinforcing plate 302 is made of Q235 steel plate. After the fixed bracket 103 is initially fixed to the base 101, the two ends of the C-shaped reinforcing plate 302 are inserted into the corresponding reinforcing grooves 301 of the base 101 and the fixed bracket 103, respectively. At this time, the arc-shaped section of the C-shaped reinforcing plate 302 fits against the outer wall of the fixed bracket 103, forming lateral support for the fixed bracket 103. The limiting components 303 on both sides of the top of the base 101 include locking blocks 303a and locking slots 303b. The locking slots 303b are respectively opened at the corresponding positions of the base 101, the fixed bracket 103, and the C-shaped reinforcing plate. When the C-shaped reinforcing plate is inserted into the reinforcing groove 301, the base 101, the fixed bracket 103, and the C-shaped reinforcing plate are fixed. The slots 303b on the C-shaped reinforcement plate are aligned in a straight line. The locking block 303a is forcefully inserted into the slot 303b. The interference fit between the locking block 303a and the slot 303b secures the three together, preventing the C-shaped reinforcement plate from falling out of the reinforcement groove 301 during vehicle operation, thus achieving the reinforcement effect.

[0026] Working Principle: The detection plate 201 is fixed to the top of the left base 101 by welding, forming an integrated structure with the base 101 to ensure detection stability. A pressure sensor 203a (model PT124G-111) is bolted to the mounting slot 202 inside the detection plate 201. This pressure sensor 203a has a measurement range of 0-500N and an accuracy of ±0.5%FS, accurately capturing pressure changes. The lower pressure plate 204a on the bottom left of the fixed bracket 103 is made of steel plate and is welded to the fixed bracket 103. A lower pressure rod 204b is vertically welded to the bottom of the lower pressure plate 204a. After the fixed bracket 103 is fixed to the base 101 by high-strength bolts, the bottom of the lower pressure rod 204b contacts the sensing surface of the pressure sensor 203a, at which point the pressure... The initial pressure on sensor 203a is set to 100-150N, which can be finely adjusted by tightening the bolts. The miniature alarm 205a, fixed to the bottom of the detection plate 201 by bolts, is powered by DC 12V and has a built-in buzzer and LED warning light. The buzzer volume is ≥85dB, and the LED warning light flashes red. Pressure sensor 203a is connected to the control module of miniature alarm 205a via wires. The control module has a preset pressure threshold: when pressure sensor 203a detects… When the measured pressure value is below 50N, the fixed bracket 103 becomes loose, causing a decrease in the pressure of the pressure rod 204b on the pressure sensor 203a. The control module immediately triggers the miniature alarm 205a, which sounds an audible buzzer and flashes an LED light, providing real-time alarm for loose fastening. Reinforcing grooves 301 are provided on both sides of the top of the base 101 and both sides of the bottom of the fixed bracket 103. The reinforcing grooves 301 are rectangular, with a width matching the thickness of the C-shaped reinforcing plate 302. The C-shaped reinforcing plate 302 is made of Q23 stainless steel. Made of 5 steel plates bent into shape, after the fixed bracket 103 is initially fixed to the base 101, the two ends of the C-shaped reinforcing plate 302 are respectively inserted into the corresponding reinforcing grooves 301 of the base 101 and the fixed bracket 103. At this time, the arc-shaped section of the C-shaped reinforcing plate 302 fits against the outer wall of the fixed bracket 103, forming lateral support for the fixed bracket 103. The limiting components 303 on both sides of the top of the base 101 include a locking block 303a and a locking groove 303b. The locking grooves 303b are respectively opened in the base 101, the fixed bracket 103 and the C-shaped reinforcing plate 302. When the C-type reinforcing plate is inserted into the reinforcing groove 301, the base 101, the fixing bracket 103, and the slot 303b on the C-type reinforcing plate are aligned. The locking block 303a is forcefully inserted into the slot 303b. The interference fit between the locking block 303a and the slot 303b secures the three components, preventing the C-type reinforcing plate from falling out of the reinforcing groove 301 during vehicle operation, thus achieving automatic tightness detection.

[0027] In summary, by setting up the detection mechanism 2, the detection mechanism 2 can perform real-time detection of the fastening points of the fixed bracket 103 and the base 101. When loosening occurs, the alarm component 205 can promptly issue an alarm, thereby achieving the effect of automatic detection of tightness. This solves the problem that the existing fastening devices for vehicle LNG cylinders mostly adopt a traditional combination structure of metal brackets and bolts, which do not have a structure for automatically detecting the tightness of the fastening points. It requires drivers to get out of the vehicle to check after driving a certain distance, which is very inconvenient. If a check is missed and loosening occurs, it may cause the cylinder to shift, vibrate, or even fall off, which will not only affect the normal supply of LNG, but may also cause serious safety accidents such as leakage and explosion, thus posing certain safety hazards.

[0028] The pressure sensors and miniature alarms used in this application can be additionally equipped with protective measures that are common knowledge in the field of this technology under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0029] It should be noted that (pressure sensor, miniature alarm) is a device or equipment that exists in the prior art, or a device or equipment that can be implemented by the prior art. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the device, as well as the materials of each accessory and the selection of various parameters are all common knowledge in the art, and therefore will not be described in detail in this application document.

[0030] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0031] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0032] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fastening device for a vehicle-mounted LNG cylinder, characterized in that: The device includes a fastening mechanism (1), which comprises two bases (101). An LNG cylinder (102) is placed on top of each base (101). A fixing bracket (103) is provided on top of each base (101). A rubber pad (104) is fixedly installed on the inner side of each fixing bracket (103). The fixing bracket (103) is fixedly installed to the base (101) by high-strength bolts. The testing mechanism (2) is located on the left side of the top of the base (101). The reinforcement mechanism (3) is located on both sides of the top outer side of the base (101).

2. The fastening device for a vehicle-mounted LNG cylinder according to claim 1, characterized in that: The detection mechanism (2) includes a detection plate (201), which is fixedly installed on the left side of the top of the base (101). The detection plate (201) has an installation groove (202) inside, and a detection component (203) is fixedly installed inside the installation groove (202). A pressing component (204) is fixedly installed on the left side of the bottom of the fixed bracket (103), and an alarm component (205) is fixedly installed on the bottom of the detection plate (201).

3. The fastening device for a vehicle-mounted LNG cylinder according to claim 2, characterized in that: The detection component (203) includes a pressure sensor (203a), which is fixedly installed inside the mounting slot (202).

4. The fastening device for a vehicle-mounted LNG cylinder according to claim 2, characterized in that: The pressing component (204) includes a pressing plate (204a), which is fixedly installed on the left side of the bottom of the fixed bracket (103). A pressing rod (204b) is fixedly installed on the bottom of the pressing plate (204a), and the pressing rod (204b) is used to press the pressure sensor (203a).

5. The fastening device for a vehicle-mounted LNG cylinder according to claim 2, characterized in that: The alarm component (205) includes a miniature alarm (205a), which is fixedly mounted on the bottom of the detection plate (201).

6. The fastening device for a vehicle-mounted LNG cylinder according to claim 1, characterized in that: The reinforcement mechanism (3) includes a reinforcement groove (301), which is opened on both sides of the top of the base (101) and both sides of the bottom of the fixed bracket (103). A C-shaped reinforcement plate (302) is inserted into the inside of the reinforcement groove (301), and a limit component (303) is engaged on both sides of the top of the base (101).

7. A fastening device for a vehicle-mounted LNG cylinder according to claim 6, characterized in that: The limiting component (303) includes a locking block (303a). The base (101), the fixed bracket (103) and the C-shaped reinforcing plate (302) are all provided with locking slots (303b). The locking block (303a) can be locked and fixed with the locking slots (303b).

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