A CNG commercial vehicle gas integrated control device and a CNG commercial vehicle

Abstract

The present invention discloses a CNG commercial vehicle gas integrated control device and a CNG commercial vehicle, which relate to the technical field of commercial vehicle chassis layout structures. The device includes an integrated bracket, which includes a left vertical plate, a rear vertical plate, a right vertical plate, and a front vertical plate that are sequentially vertically connected and integrally formed. The left vertical plate and the right vertical plate are spaced apart, the rear vertical plate is located between the left vertical plate and the right vertical plate, and the front vertical plate is arranged on the side away from the left vertical plate. The integrated bracket is used to be installed on the vehicle frame longitudinal beam through the rear vertical plate; a pressure reducer assembly, which is arranged on the outer side of the left vertical plate; a filter assembly, which is located on the outer side of the right vertical plate; a filling stop valve, which is located between the left vertical plate and the right vertical plate and is installed on the right vertical plate; and a supply manual stop valve, which is arranged on the front vertical plate. By arranging the pressure reducer assembly, the filter assembly, the supply manual stop valve, and the filling stop valve on the U-shaped integrated bracket in the above manner, the space utilization rate can be effectively improved, and the space occupancy of the CNG commercial vehicle gas integrated control device is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of commercial vehicle chassis layout structures, and particularly relates to a CNG commercial vehicle gas integrated control device and a CNG commercial vehicle. Background Art

[0002] Compressed natural gas is an ideal alternative energy source for vehicles, and its application technology has become increasingly mature after decades of development. It has the characteristics of low cost, high efficiency, no pollution, safe and convenient use, etc., and is increasingly showing strong development potential.

[0003] Traditional and commonly used special CNG commercial vehicle gas components, including a pressure reducer assembly, a filter assembly, a pressure gauge, a manual gas supply shut-off valve, an inflation shut-off valve, etc., are scattered on the vehicle chassis. There are many brackets, poor assembly processability, and poor versatility, which is not conducive to the organization and management of supplier components. In the prior art, the space utilization rate of the special CNG commercial vehicle gas component integration device is not high, and the integrated components are few, resulting in a large occupied space and low space utilization rate. Summary of the Invention

[0004] Aiming at the defects existing in the prior art, the purpose of the present invention is to provide a CNG commercial vehicle gas integrated control device and a CNG commercial vehicle, which can solve the problems of low space utilization rate of the special CNG commercial vehicle gas component integration device in the prior art, few integrated components, large occupied space, and low space utilization rate.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] On the one hand, a CNG commercial vehicle gas integrated control device is provided, which includes:

[0007] An integrated bracket, including a left vertical plate, a rear vertical plate, a right vertical plate, and a front vertical plate that are sequentially vertically connected and integrally formed. The left vertical plate and the right vertical plate are spaced apart. The rear vertical plate is located between the left vertical plate and the right vertical plate. The front vertical plate is provided on the side away from the left vertical plate. The integrated bracket is used to be installed on the vehicle frame longitudinal beam through the rear vertical plate;

[0008] A pressure reducer assembly, which is arranged on the outer side of the left vertical plate;

[0009] A filter assembly, which is located on the outer side of the right vertical plate. The filter assembly is connected to the pressure reducer assembly through a pipeline and is used to filter the CNG gas entering the pressure reducer assembly;

[0010] An inflation shut-off valve, which is arranged on the discharge pipeline of the filter assembly, is located between the left vertical plate and the right vertical plate, and is installed on the right vertical plate;

[0011] The air supply manual stop valve is provided on the front vertical plate and is located on the pipeline connecting the filter assembly and the inflation stop valve.

[0012] Based on the above technical solution,

[0013] In some alternative solutions, a first reinforcing plate is provided between the right vertical plate and the front vertical plate of the integrated bracket.

[0014] In some alternative solutions, the filter assembly is connected to the integrated bracket through a filter bracket. The filter bracket is an L-shaped plate. The short plate of the filter bracket is connected to the right vertical plate, and the long plate of the filter bracket is connected to the filter assembly.

[0015] In some alternative solutions, a second reinforcing plate is provided between the short plate and the long plate of the L-shaped plate.

[0016] In some alternative solutions, an inflation valve protection box is provided outside the inflation stop valve. Both sides of the inflation valve protection box are connected to the left vertical plate and the right vertical plate.

[0017] In some alternative solutions, the inflation valve protection box includes:

[0018] A protection box body is provided outside the inflation stop valve. Both sides of the protection box body are connected to the left vertical plate and the right vertical plate. There are notches on the upper side and the lower side for the inflation stop valve to pass through. There is a notch on the front side of the protection box body;

[0019] A protection box door is provided on the notch on the front side of the protection box body. A protection box door lock is provided on the protection box body. The protection box door lock is used to lock the protection box door.

[0020] In some alternative solutions, the inflation stop valve includes:

[0021] An inflation port for inserting an inflation gun;

[0022] An inflation stop valve air inlet for connecting to a CNG storage cylinder through a pipeline;

[0023] An inflation stop valve air outlet connected to the air supply manual stop valve through a pipeline;

[0024] An inflation stop valve handle for adjusting the communication port. When the inflation stop valve handle is closed, the inflation stop valve air inlet is communicated with the inflation stop valve air outlet. When the inflation stop valve handle is opened, the inflation port is communicated with the inflation stop valve air inlet.

[0025] In some alternative embodiments, the pressure reducer assembly is provided with a low-pressure gas outlet and a high-pressure gas inlet. The low-pressure gas outlet is connected to the engine through a pipeline, and the high-pressure gas inlet is connected to the filter assembly through a pipeline. The pressure reducer assembly further includes:

[0026] A gas pressure sensor for detecting the gas pressure at the high-pressure gas inlet and calculating the remaining gas volume in the CNG storage cylinder;

[0027] A pressure relief valve port for opening when the internal pressure of the pressure reducer assembly is greater than the safety pressure.

[0028] In some alternative embodiments, the pressure reducer assembly is provided with a heating water inlet and a heating water outlet. Both the heating water inlet and the heating water outlet are connected to the engine water tank through pipelines. The pressure reducer assembly further includes a temperature sensor. When the temperature of the pressure reducer assembly is too low, the temperature sensor introduces hot water from the heating water inlet to heat the pressure reducer assembly and then discharges the hot water from the heating water outlet.

[0029] On the other hand, a CNG commercial vehicle is provided, which includes the above-mentioned CNG commercial vehicle gas integrated control device.

[0030] Compared with the prior art, the advantages of the present invention are as follows:

[0031] When using the CNG commercial vehicle gas integrated control device, the integrated bracket is set as a U-shaped integrally formed structure, including a left vertical plate, a rear vertical plate, a right vertical plate, and a front vertical plate that are sequentially vertically connected and integrally formed. The left vertical plate and the right vertical plate are spaced apart, the rear vertical plate is located between the left vertical plate and the right vertical plate, and the front vertical plate is provided on the side away from the left vertical plate. The integrated bracket is used to be installed on the vehicle frame longitudinal beam through the rear vertical plate. The pressure reducer assembly is arranged on the outside of the left vertical plate, the filter assembly is located on the outside of the right vertical plate, and the filter assembly is connected to the pressure reducer assembly through a pipeline. The supply manual shut-off valve is arranged on the side of the front vertical plate away from the rear vertical plate and is connected to the filter assembly through a pipeline. The filling shut-off valve is arranged on the side where the left vertical plate and the right vertical plate face each other and is connected to the supply manual shut-off valve through a pipeline. By arranging the pressure reducer assembly, the filter assembly, the supply manual shut-off valve, and the filling shut-off valve on the U-shaped integrated bracket in the above manner, the space utilization rate can be effectively improved, the space occupied by the CNG commercial vehicle gas integrated control device is reduced, and the problems of low space utilization rate and large occupied space in the prior art for the integrated device of CNG commercial vehicle gas special parts can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0033] Figure 1 It is a schematic structural diagram of an embodiment of a CNG commercial vehicle gas integrated control device and a CNG commercial vehicle according to the present invention;

[0034] Figure 2 It is a schematic top view structural diagram of an embodiment of a CNG commercial vehicle gas integrated control device and a CNG commercial vehicle according to the present invention;

[0035] Figure 3 It is a schematic front view structural diagram of an embodiment of a CNG commercial vehicle gas integrated control device and a CNG commercial vehicle according to the present invention;

[0036] Figure 4 It is a schematic structural diagram of a pressure reducer assembly in an embodiment of a CNG commercial vehicle gas integrated control device and a CNG commercial vehicle according to the present invention;

[0037] Figure 5 It is a schematic structural diagram of a pressure relief valve port in an embodiment of a CNG commercial vehicle gas integrated control device and a CNG commercial vehicle according to the present invention;

[0038] Figure 6 It is a schematic structural diagram of an integrated bracket in an embodiment of a CNG commercial vehicle gas integrated control device and a CNG commercial vehicle according to the present invention;

[0039] Figure 7 It is a schematic structural diagram of an inflation stop valve in an embodiment of a CNG commercial vehicle gas integrated control device and a CNG commercial vehicle according to the present invention;

[0040] Figure 8 It is a schematic structural diagram of a stop valve protection box in an embodiment of a CNG commercial vehicle gas integrated control device and a CNG commercial vehicle according to the present invention.

[0041] In the figure: 1. Frame longitudinal beam; 2. Pressure reducer assembly; 21. Low-pressure gas outlet; 22. Vacuum air intake; 23. Heated water inlet; 24. Heated water outlet; 25. Gas pressure sensor; 26. High-pressure gas inlet; 27. Temperature sensor; 28. Pressure relief valve port; 3. Integrated bracket; 31. First mounting hole; 32. Fourth mounting hole; 33. First reinforcing plate; 34. Third mounting hole; 35. U-shaped bracket; 36. Fifth mounting hole; 37. Sixth mounting hole; 38. Second mounting hole; 4. Filter bracket; 41. Second reinforcing plate; 5. Filter assembly; 6. Supply manual stop valve; 7. Inflation stop valve; 71. Pressure gauge; 72. Inflation stop valve outlet; 73. Inflation stop valve handle; 74. Inflation stop valve inlet; 75. Inflation port; 8. Inflation valve protection box; 81. Protection box body; 82. Protection box door; 83. Protection box door lock. Detailed implementation manners

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0043] The following further elaborates on the embodiments of a CNG commercial vehicle gas integrated control device and a CNG commercial vehicle of the present invention with reference to the accompanying drawings.

[0044] As Figure 1 and Figure 6 shown, on the one hand, a CNG commercial vehicle gas integrated control device is provided, which includes:

[0045] An integrated bracket 3, including a left vertical plate, a rear vertical plate, a right vertical plate, and a front vertical plate that are sequentially vertically connected and integrally formed. The left vertical plate and the right vertical plate are spaced apart, the rear vertical plate is located between the left vertical plate and the right vertical plate, and the front vertical plate is arranged on the side away from the left vertical plate. The integrated bracket 3 is used to be installed on the frame longitudinal beam 1 through the rear vertical plate;

[0046] A pressure reducer assembly 2, which is arranged on the outer side of the left vertical plate;

[0047] A filter assembly 5, which is located on the outer side of the right vertical plate. The filter assembly 5 is connected to the pressure reducer assembly 2 through a pipeline and is used to filter the CNG gas entering the pressure reducer assembly 2;

[0048] An inflation stop valve 7, which is arranged on the discharge pipeline of the filter assembly 5, is located between the left vertical plate and the right vertical plate, and is installed on the right vertical plate;

[0049] The gas supply manual shut-off valve 6 is provided on the front vertical plate and is located on the pipeline connecting the filter assembly 5 and the inflation shut-off valve 7.

[0050] When using this CNG commercial vehicle gas integrated control device, the integrated bracket 3 is set in a U-shaped integrally formed structure, including a left vertical plate, a rear vertical plate, a right vertical plate, and a front vertical plate that are sequentially vertically connected and integrally formed. The left vertical plate and the right vertical plate are spaced apart, the rear vertical plate is located between the left vertical plate and the right vertical plate, and the front vertical plate is provided on the side away from the left vertical plate. The integrated bracket 3 is used to be installed on the vehicle frame longitudinal beam 1 through the rear vertical plate. The pressure reducer assembly 2 is arranged on the outer side of the left vertical plate, the filter assembly 5 is located on the outer side of the right vertical plate, and the filter assembly 5 is connected to the pressure reducer assembly 2 through a pipeline. The gas supply manual shut-off valve 6 is provided on the front vertical plate, the handle is located on the side of the front vertical plate away from the rear vertical plate, and is connected to the filter assembly 5 through a pipeline. The inflation shut-off valve 7 is provided on the side where the left vertical plate and the right vertical plate face each other and is connected to the gas supply manual shut-off valve 6 through a pipeline. By arranging the pressure reducer assembly 2, the filter assembly 5, the gas supply manual shut-off valve 6, and the inflation shut-off valve 7 on the U-shaped integrated bracket 3 in the above manner, the space utilization rate can be effectively improved, the space occupied by this CNG commercial vehicle gas integrated control device is reduced, and the problems of low space utilization rate of the CNG commercial vehicle gas special parts integrated device and few integrated parts, large space occupation, and low space utilization rate in the prior art can be solved.

[0051] In this example, the integrated bracket 3 is fixed on the outer side of the vehicle frame longitudinal beam 1 through four first mounting holes 31 provided on the rear vertical plate; the pressure reducer assembly 2 is fixed on the integrated bracket 3 through two second mounting holes 38 provided on the left vertical plate; the gas supply manual shut-off valve 6 is fixed on the integrated bracket 3 through a third mounting hole 34 provided on the front vertical plate for easy operation; the U-shaped bracket 35 is welded on the inner side of the right vertical plate, and the inflation shut-off valve 7 is fixed on the U-shaped bracket 35.

[0052] In this example, the filter assembly 5 is a stepped cylinder structure with a filter element inside. Its function is to filter and clean the CNG gas, filter out impurities and oil and water in the CNG gas, and ensure the clean use of gas for the engine; the gas supply manual shut-off valve 6, its function is to manually cut off the CNG gas path through manual intervention, and is commonly used when inflating the vehicle CNG storage cylinder or in case of emergency safety situations of the vehicle. When parking for a long time, it is necessary to close the gas supply manual shut-off valve 6;

[0053] As Figure 2 and Figure 6 shown, in some alternative embodiments, a first reinforcing plate 33 is provided between the right vertical plate and the front vertical plate of the integrated bracket 3.

[0054] In this embodiment, a first reinforcing plate 33 is provided between the right vertical plate and the front vertical plate of the integrated bracket 3, which can strengthen the bent part between the right vertical plate and the front vertical plate of the integrated bracket 3, improve the structural stability, and prevent the integrated bracket 3 from being damaged and the structure from being destroyed after long-term use.

[0055] As Figure 1 , Figure 2 , Figure 3 and Figure 6 shown, in some alternative embodiments, the filter assembly 5 is connected to the integrated bracket 3 through a filter bracket 4. The filter bracket 4 is an L-shaped plate. The short plate of the filter bracket 4 is connected to the right vertical plate, and the long plate of the filter bracket 4 is connected to the filter assembly 5.

[0056] In this embodiment, the filter assembly 5 is connected to the integrated bracket 3 through the filter bracket 4, and the filter bracket 4 is an L-shaped plate. The short plate of the filter bracket 4 is connected to the right vertical plate, and the long plate of the filter bracket 4 is connected to the filter assembly 5. The filter bracket 4 can make the installation of the filter assembly 5 more convenient and the structure more reasonable.

[0057] In this example, the filter bracket 4 is fixed to the integrated bracket 3 through a fourth mounting hole 32 provided on the right vertical plate; four holes are provided on the long plate for fixing the filter assembly 5.

[0058] As Figure 1 shown, in some alternative embodiments, a second reinforcing plate 41 is provided between the short plate and the long plate of the L-shaped plate.

[0059] In this embodiment, a second reinforcing plate 41 is provided between the short plate and the long plate of the L-shaped plate, which can strengthen the bent part between the short plate and the long plate of the filter bracket 4, improve the structural stability, and prevent the filter bracket 4 from being damaged and the structure from being destroyed after long-term use.

[0060] As Figure 1 , Figure 6 and Figure 8 shown, in some alternative embodiments, an inflation stop valve protection box 8 is provided outside the inflation stop valve 7, and both sides of the inflation valve protection box 8 are connected to the left vertical plate and the right vertical plate.

[0061] In this embodiment, an inflation stop valve protection box 8 is provided outside the inflation stop valve 7, and both sides of the inflation valve protection box 8 are connected to the left vertical plate and the right vertical plate, which can protect the inflation stop valve 7 and prevent the inflation stop valve 7 from being affected by external forces.

[0062] In this example, the left side of the inflation valve protection box 8 is fixed to the integrated bracket 3 through a fifth mounting hole 36 provided on the left vertical plate, and the right side of the inflation valve protection box 8 is fixed to the integrated bracket 3 through a sixth mounting hole 37 provided on the right vertical plate.

[0063] As Figure 8 shown, in some alternative embodiments, the inflation valve protection box 8 includes:

[0064] A protection box body 81, which is arranged outside the inflation cut-off valve 7. Both sides of the protection box body 81 are connected to the left vertical plate and the right vertical plate. Notches for the inflation cut-off valve 7 to pass through are provided on the upper side and the lower side, and a notch is provided on the front side of the protection box body 81;

[0065] A protection box door 82, which is arranged on the notch on the front side of the protection box body 81. A protection box door lock 83 is provided on the protection box body 81, and the protection box door lock 83 is used to lock the protection box door 82.

[0066] In this embodiment, the inflation valve protection box 8 includes a protection box body 81 and a protection box door 82. The protection box body 81 is of a hollow structure and is arranged outside the inflation cut-off valve 7. Both sides of the protection box body 81 are connected to the left vertical plate and the right vertical plate. Notches for the inflation cut-off valve 7 to pass through are provided on the upper side and the lower side of the protection box body 81, and a notch is provided on the front side of the protection box body 81. The protection box door 82 is arranged on the notch on the front side of the protection box body 81, and a protection box door lock 83 is further provided on the protection box body 81. The protection box door 82 can be locked by the protection box door lock 83. By setting the protection box body 81 as a hollow structure, it is convenient to arrange the inflation cut-off valve 7 and the routing of the gas pipeline, and it can also provide sufficient operating space for the process of inflating the inflation cut-off valve 7. It is also convenient to install the protection box door 82 on the protection box body 81. The protection box door 82 is convenient for later maintenance. The protection box door lock 83 can ensure that the protection box door 82 will not open by itself due to other factors, avoiding safety problems.

[0067] As Figure 7 shown, in some alternative embodiments, the inflation cut-off valve 7 includes:

[0068] An inflation port 75, which is used for inserting an inflation gun;

[0069] An inflation cut-off valve inlet 74, which is used to connect to the CNG storage cylinder through a pipeline;

[0070] An inflation cut-off valve outlet 72, which is connected to the supply manual cut-off valve 6 through a pipeline;

[0071] An inflation cut-off valve handle 73, which is used to adjust the communication port. When the inflation cut-off valve handle 73 is closed, the inflation cut-off valve inlet 74 is communicated with the inflation cut-off valve outlet 72. When the inflation cut-off valve handle 73 is opened, the inflation port 75 is communicated with the inflation cut-off valve inlet 74.

[0072] In this embodiment, the inflation cut-off valve 7 is provided with an inflation cut-off valve air inlet 74, an inflation cut-off valve air outlet 72, an inflation port 75, and an inflation cut-off valve handle 73. The inflation cut-off valve air inlet 74 is connected to the CNG storage cylinder through a pipeline. The inflation cut-off valve air outlet 72 is connected to the supply manual cut-off valve 6 through a pipeline. The inflation cut-off valve handle 73 is used to adjust the communication port. When the inflation cut-off valve handle 73 is closed, the inflation cut-off valve air inlet 74 is communicated with the inflation cut-off valve air outlet 72. When the inflation cut-off valve handle 73 is opened, the inflation port 75 is communicated with the inflation cut-off valve air inlet 74. When inflation is required, an inflation gun is inserted at the inflation port 75, the supply manual cut-off valve 6 is closed, the inflation cut-off valve handle 73 is opened, the inflation port 75 is communicated with the inflation cut-off valve air inlet 74, and the inflation gun starts to inflate. After inflation is completed, the inflation cut-off valve handle 73 is closed, the inflation cut-off valve air inlet 74 is communicated with the inflation cut-off valve air outlet 72, then the supply manual cut-off valve 6 is opened. After the inflation gun is depressurized, the inflation gun is pulled out, and the inflation process is completed.

[0073] In this example, the inflation cut-off valve 7 is also provided with a pressure gauge 71, which can intuitively display the inflation pressure of the inflation gun and can better perform the process of depressurizing the inflation gun.

[0074] In this example, the inflation port 75 is provided with a dust cover to prevent dust from entering the inflation cut-off valve 7 from the inflation port 75 and affecting the cleanliness inside the inflation cut-off valve 7.

[0075] As Figure 4 and Figure 5 shown, in some alternative embodiments, the pressure reducer assembly 2 is provided with a low-pressure gas outlet 21 and a high-pressure gas inlet 26. The low-pressure gas outlet 21 is used to be connected to the engine through a pipeline. The high-pressure gas inlet 26 is connected to the filter assembly 5 through a pipeline. The pressure reducer assembly 2 further includes:

[0076] A gas pressure sensor 25, which is used to detect the gas pressure at the high-pressure gas inlet 26 and calculate the remaining gas volume in the CNG storage cylinder;

[0077] A pressure relief valve port 28, which is used to open when the internal pressure of the pressure reducer assembly 2 is greater than the safety pressure.

[0078] In this embodiment, the pressure reducer assembly 2 is provided with a low-pressure gas outlet 21 and a high-pressure gas inlet 26. The low-pressure gas outlet 21 is connected to the engine through a pipeline, and the high-pressure gas inlet 26 is connected to the filter assembly 5 through a pipeline. The pressure reducer assembly 2 is also provided with a gas pressure sensor 25 and a pressure relief valve port 28. The gas pressure sensor 25 is used to detect the gas pressure of the high-pressure gas inlet 26, that is, the gas pressure in the high-pressure area. The pressure relief valve port 28 is used to open when the internal pressure of the pressure reducer assembly 2 is greater than the safety pressure, and reduce the gas pressure through the pressure relief valve port 28. The structure is simple and effective.

[0079] In this example, the pressure reducer assembly 2 is also provided with a vacuum air intake port 22. The vacuum air intake port 22 is connected to the intake manifold of the engine. When the engine intake volume is large, more CNG gas is required for the engine to burn. At this time, the vacuum degree of the engine intake manifold is large, the diaphragm spring inside the pressure reducer assembly 2 opens wide, the flow rate is large, and more CNG gas enters the engine. The vacuum air intake port 22 can play a role in balancing the pressure, and adjust the CNG gas volume through the diaphragm spring of the pressure reducer assembly 2 according to the intake condition of the engine.

[0080] In this example, the gas pressure sensor 25 essentially detects the gas pressure of the high-pressure gas, that is, it can also detect the gas pressure in the CNG storage cylinder. The gas volume in the CNG storage cylinder can be obtained through the gas pressure, and the gas pressure sensor 25 can reflect the gas volume to the dashboard.

[0081] In this example, the main functional components are all of rotary body structure, which is convenient for processing.

[0082] As Figure 4 shown, in some alternative embodiments, the pressure reducer assembly 2 is provided with a heating water inlet 23 and a heating water outlet 24. Both the heating water inlet 23 and the heating water outlet 24 are used to connect to the engine water circuit through pipelines. The pressure reducer assembly 2 further includes a temperature sensor 27. The temperature sensor 27 is used to introduce hot water from the heating water inlet 23 to heat the pressure reducer assembly 2 when the temperature of the pressure reducer assembly 2 is too low, and then discharge the hot water from the heating water outlet 24.

[0083] In this embodiment, the pressure reducer assembly 2 is provided with a heating water inlet 23 and a heating water outlet 24. Both the heating water inlet 23 and the heating water outlet 24 are connected to the engine water tank through pipelines. The pressure reducer assembly 2 is also provided with a temperature sensor 27. When the temperature of the high-pressure gas is too low, hot water is introduced from the heating water inlet 23 to heat the high-pressure gas, and then the hot water is discharged from the heating water outlet 24, preventing phenomena such as insufficient power, increased fuel consumption, and unstable idling caused by too low temperature of the pressure reducer assembly 2.

[0084] On the other hand, a CNG commercial vehicle is provided, which includes the above-mentioned CNG commercial vehicle gas integrated control device.

[0085] When using this CNG commercial vehicle, the integrated bracket 3 in the CNG commercial vehicle gas integrated control device is set as a U-shaped one-piece, including a left vertical plate, a rear vertical plate, a right vertical plate and a front vertical plate that are vertically connected in sequence and integrally formed. The left vertical plate and the right vertical plate are arranged at intervals, the rear vertical plate is located between the left vertical plate and the right vertical plate, and the front vertical plate is arranged on the side away from the left vertical plate. The integrated bracket 3 is used to be installed on the vehicle frame longitudinal beam 1 through the rear vertical plate. The pressure reducer assembly 2 is arranged on the outer side of the left vertical plate, the filter assembly 5 is located on the outer side of the right vertical plate, and the filter assembly 5 is connected to the pressure reducer assembly 2 through a pipeline. The supply gas manual stop valve 6 is arranged on the side of the front vertical plate away from the rear vertical plate and is connected to the filter assembly 5 through a pipeline. The inflation stop valve 7 is arranged on the side where the left vertical plate and the right vertical plate face each other and is connected to the supply gas manual stop valve 6 through a pipeline. By arranging the pressure reducer assembly 2, the filter assembly 5, the supply gas manual stop valve 6 and the inflation stop valve 7 on the U-shaped integrated bracket 3 in the above manner, the space utilization rate can be effectively improved, the space occupancy of the CNG commercial vehicle gas integrated control device is reduced, and the problems of low space utilization rate and few integrated parts in the integrated device of the CNG commercial vehicle gas special parts in the prior art, large space occupation and low space utilization rate can be solved.

[0086] In summary, the CNG commercial vehicle gas integrated control device highly integrates and arranges the proprietary parts of the CNG commercial vehicle through the integrated bracket 3 to form a module, reducing the space occupancy. On this basis, the module is installed on the left side of the vehicle chassis, while the vehicle chassis battery and exhaust system are arranged on the right side of the vehicle, and the auxiliary fuel tank is arranged at the rear end of the vehicle, which can ensure a sufficient safety distance between the proprietary parts of the CNG gas vehicle and potential dangerous factors such as vehicle power supply, heat source and fuel, and provide practical guarantee for the safe use of the CNG gas vehicle to the greatest extent; adopting an integrated modular design is convenient for organization and management, can shorten the product R & D and manufacturing cycle, can quickly increase the product series, is beneficial to improving product quality, has high development efficiency, low manufacturing and maintenance costs, and the integrated module has good versatility, which can reduce the vehicle maintenance cost of consumers; by reducing the space occupancy of the integrated module, the CNG gas storage cylinder can be increased. The larger the volume of the CNG gas storage cylinder, the larger the capacity, and the vehicle cruising range can be improved, which can alleviate the cruising anxiety of users to the greatest extent.

[0087] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0088] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0089] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An integrated CNG commercial vehicle gas control device, characterized in that, Comprising: An integrated bracket (3), including a left vertical plate, a rear vertical plate, a right vertical plate, and a front vertical plate that are sequentially vertically connected and integrally formed. The left vertical plate and the right vertical plate are spaced apart. The rear vertical plate is located between the left vertical plate and the right vertical plate. The front vertical plate is provided on the side away from the left vertical plate. The integrated bracket (3) is used to be installed on the vehicle frame longitudinal beam (1) through the rear vertical plate; A pressure reducer assembly (2), which is arranged on the outer side of the left vertical plate; A filter assembly (5), which is located on the outer side of the right vertical plate. The filter assembly (5) is connected to the pressure reducer assembly (2) through a pipeline and is used to filter the CNG gas entering the pressure reducer assembly (2); An inflation cut-off valve (7), which is arranged on the discharge pipeline of the filter assembly (5), is located between the left vertical plate and the right vertical plate, and is installed on the right vertical plate; A supply manual cut-off valve (6), which is arranged on the front vertical plate and is located on the pipeline connecting the filter assembly (5) and the inflation cut-off valve (7); An inflation valve protection box (8) is provided on the outer side of the inflation cut-off valve (7). The two sides of the inflation valve protection box (8) are connected to the left vertical plate and the right vertical plate; The inflation valve protection box (8) includes: A protection box body (81), which is arranged on the outer side of the inflation cut-off valve (7). The two sides of the protection box body (81) are connected to the left vertical plate and the right vertical plate. Notches for the inflation cut-off valve (7) to pass through are provided on both the upper side and the lower side. A notch is provided on the front side of the protection box body (81); A protection box door (82), which is arranged on the notch on the front side of the protection box body (81). A protection box door lock (83) is provided on the protection box body (81), and the protection box door lock (83) is used to lock the protection box door (82).

2. The integrated CNG commercial vehicle gas control device according to claim 1, characterized in that, A first reinforcing plate (33) is provided between the right vertical plate and the front vertical plate of the integrated bracket (3).

3. The integrated CNG commercial vehicle gas control device according to claim 1, characterized in that, The filter assembly (5) is connected to the integrated bracket (3) through a filter bracket (4). The filter bracket (4) is an L-shaped plate. The short plate of the filter bracket (4) is connected to the right vertical plate, and the long plate of the filter bracket (4) is connected to the filter assembly (5).

4. The integrated CNG commercial vehicle gas control device according to claim 3, characterized in that, A second reinforcing plate (41) is provided between the short plate and the long plate of the L-shaped plate.

5. The integrated CNG commercial vehicle gas control device according to claim 1, characterized in that, The inflation cut-off valve (7) includes: An inflation port (75), which is used to insert an inflation gun; An inflation cut-off valve inlet (74), which is used to be connected to a CNG storage cylinder through a pipeline; An inflation cut-off valve outlet (72), which is connected to the supply manual cut-off valve (6) through a pipeline; An inflation cut-off valve handle (73), which is used to adjust the communication port. When the inflation cut-off valve handle (73) is closed, the inflation cut-off valve inlet (74) is communicated with the inflation cut-off valve outlet (72). When the inflation cut-off valve handle (73) is opened, the inflation port (75) is communicated with the inflation cut-off valve inlet (74).

6. The integrated CNG commercial vehicle gas control device according to claim 1, characterized in that, The pressure reducer assembly (2) is provided with a low-pressure gas outlet (21) and a high-pressure gas inlet (26). The low-pressure gas outlet (21) is connected to the engine through a pipeline. The high-pressure gas inlet (26) is connected to the filter assembly (5) through a pipeline. The pressure reducer assembly (2) further includes: A gas pressure sensor (25) for detecting the gas pressure at the high-pressure gas inlet (26) and calculating the remaining gas volume in the CNG storage cylinder; A pressure relief valve port (28) for opening when the internal pressure of the pressure reducer assembly (2) is greater than the safety pressure.

7. The integrated CNG commercial vehicle gas control device according to claim 6, characterized in that, The pressure reducer assembly (2) is provided with a heating water inlet (23) and a heating water outlet (24). Both the heating water inlet (23) and the heating water outlet (24) are connected to the engine water tank through pipelines. The pressure reducer assembly (2) further includes a temperature sensor (27). The temperature sensor (27) is used to introduce hot water from the heating water inlet (23) to heat the pressure reducer assembly (2) when the temperature of the pressure reducer assembly (2) is too low, and then discharge the hot water from the heating water outlet (24).

8. A CNG commercial vehicle, characterized in that, It includes a CNG commercial vehicle gas integrated control device according to any one of claims 1-7.

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