LPG fuel control line

Abstract

The utility model relates to the technical field of LPG fuel using accessories, in particular to an LPG fuel control pipeline which comprises a plurality of first circulation pipes and second circulation pipes, and the first circulation pipes are communicated and detachably connected; a first filtering structure is arranged between every two adjacent first circulating pipes, and the second circulating pipes are communicated with the two adjacent first circulating pipes and are detachably connected with the two adjacent first circulating pipes; a second filtering structure is arranged between the second circulating pipes and the first circulating pipes, any two adjacent first circulating pipes are at least provided with a first switch valve respectively, and the first switch valves are located on the inner sides of the corresponding second circulating pipes; and a second switch valve is arranged between the second filtering structure and the first circulating pipe. According to the LPG fuel control pipeline, any one of the first switch valve and the second switch valve is controlled to be opened so as to control the flow direction of the LPG fuel, and then the other one can continue to transport and filter the LPG fuel while the filtering structure on the first circulation pipe or the second circulation pipe is cleaned, so that the overall transportation efficiency of the LPG fuel control pipeline is guaranteed.

Description

TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of LPG fuel use accessories, and particularly relates to an LPG fuel control pipeline. BACKGROUND

[0002] In the existing pipeline transportation process of LPG fuel, a filter sheet needs to be installed in the pipeline to filter the LPG fuel and remove impurities in the pipeline to avoid damage to gas equipment. However, once the filter sheet is processed, the pipeline cannot continue to transport, which affects the overall pipeline transportation efficiency. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to provide an LPG fuel control pipeline which can clean the filter structure on the first flow pipe or the second flow pipe while the other can continue to transport filtered LPG fuel to ensure the overall transportation efficiency of the LPG fuel control pipeline.

[0004] The present disclosure provides an LPG fuel control pipeline, which comprises:

[0005] A plurality of first flow pipes are connected in sequence along the axial direction; any two adjacent first flow pipes are communicated and detachably connected; at least one communication hole is formed in each first flow pipe, and the axis of the communication hole extends in the radial direction; a first filter structure is arranged between the two adjacent first flow pipes to filter the LPG fuel flowing in the first flow pipe;

[0006] A second flow pipe is arranged on any two adjacent first flow pipes, and the opposite ends of the second flow pipe are opposite to the communication holes in the two adjacent first flow pipes, so that the second flow pipe is communicated with the two adjacent first flow pipes; the second flow pipe is detachably connected with the first flow pipe; a second filter structure is arranged between the second flow pipe and the first flow pipe to filter the LPG fuel flowing in the second flow pipe;

[0007] Among them, at least one first switch valve is arranged on any two adjacent first flow pipes respectively, and the two adjacent first switch valves on the two adjacent first flow pipes are located on the inner side of the corresponding second flow pipe; a second switch valve is arranged between the second filter structure and the first flow pipe; the first switch valve and the second switch valve can be opened at will.

[0008] In an exemplary embodiment of the present disclosure, the LPG fuel control pipeline comprises a connecting pipe, a bottom end of the connecting pipe is opposite to the communication hole and connected with the first flow pipe, a top end of the connecting pipe is abutted with a bottom end of the second flow pipe, the connecting pipe is communicated with the first flow pipe and the second flow pipe, and the connecting pipe is detachably connected with the second flow pipe; the second filter structure is located between the connecting pipe and the second flow pipe, and the second switch valve is arranged on the connecting pipe to control the flow of LPG fuel in the second flow pipe.

[0009] In an exemplary embodiment of the present disclosure, the LPG fuel control pipeline comprises a connecting sleeve, the connecting sleeve comprises a first sleeve and a second sleeve which are communicated with each other, a top surface of the second sleeve is connected with a bottom surface of the first sleeve, and a top surface of the second sleeve is projected on the bottom surface of the first sleeve.

[0010] The first sleeve is sleeved on an outer periphery of the second flow pipe and can rotate relative to the second flow pipe, and an inner side wall of the first sleeve is fitted with an outer side wall of the second flow pipe; the second sleeve is sleeved on an outer periphery of the connecting pipe and is detachably connected with the connecting pipe; the second filter structure is arranged in the connecting sleeve, and an outer peripheral surface of the second filter structure is fitted with the inner side wall of the first sleeve.

[0011] In an exemplary embodiment of the present disclosure, a threaded groove is arranged on the inner side wall of the second sleeve, a thread is arranged on an outer side wall of the top of the connecting pipe, and the threaded groove on the inner side wall of the second sleeve is matched with the thread on the outer side wall of the connecting pipe to realize the rotational connection of the connecting sleeve and the connecting pipe.

[0012] In an exemplary embodiment of the present disclosure, the second flow pipe comprises two plug pipe assemblies and a flow pipe, and the two plug pipe assemblies are respectively located at opposite ends of the flow pipe.

[0013] The plug pipe assembly comprises a sleeve sleeve and a plug sleeve which are communicated with each other, the sleeve sleeve is arranged around an outer periphery of the flow pipe, and an inner side wall of the sleeve sleeve is fitted with an outer side wall of the flow pipe, a top surface of the plug sleeve is connected with a bottom surface of the sleeve sleeve, and a top surface of the plug sleeve is projected on the bottom surface of the sleeve sleeve; the plug sleeve is embedded in the first sleeve, and an outer side wall of the plug sleeve is fitted with an inner side wall of the first sleeve, and a bottom surface of the plug sleeve is abutted with a top surface of the connecting pipe.

[0014] In an exemplary embodiment of the present disclosure, the outer diameter of the sleeve is greater than the inner diameter of the first sleeve, and the bottom surface of the sleeve abuts the top surface of the first sleeve; the bottom surface of the insertion sleeve is flush with the bottom surface of the first sleeve.

[0015] In an exemplary embodiment of the present disclosure, a first sealing gasket is arranged between the second filter structure and the connecting pipe, the outer side wall of the first sealing gasket is fitted with the inner side wall of the second sleeve, the bottom surface of the first sealing gasket abuts the top surface of the connecting pipe, and the top surface of the first sealing gasket abuts the bottom surface of the second filter structure.

[0016] In an exemplary embodiment of the present disclosure, the LPG fuel control pipeline comprises a communication assembly arranged between two adjacent first flow pipes; the communication assembly comprises:

[0017] A connecting cylinder is arranged between the two first flow pipes and communicates with the first flow pipes; the first filter structure is arranged in the connecting cylinder, and the inner side wall of the connecting cylinder is fitted with the outer peripheral surface of the first filter structure;

[0018] Two limiting plates are respectively arranged at the axial two ends of the connecting cylinder; one end surface of the limiting plate is connected with the corresponding end surface of the connecting cylinder, and the other end surface abuts the end surface of the adjacent first flow pipe; the limiting plate is hollow inside, and the end surface of the limiting plate covers the end surface of the connecting cylinder; the outer periphery of the limiting plate is outwardly protruding relative to the outer periphery of the connecting cylinder;

[0019] Two limiting cylinders are arranged on the outer periphery of the connecting cylinder and can rotate relative to the connecting cylinder; the two limiting cylinders are arranged corresponding to the two limiting plates; the limiting cylinder comprises a third sleeve and a fourth sleeve which are in communication with each other; the third sleeve is located between the two limiting plates, the inner periphery of the third sleeve exceeds the fourth sleeve inwardly, and the inner diameter of the third sleeve is smaller than the outer diameter of the limiting plate; the outer periphery of the third sleeve exceeds the fourth sleeve outwardly; the fourth sleeve is detachably connected with the first flow pipe.

[0020] In an exemplary embodiment of the present disclosure, a threaded groove is arranged on the inner side wall of the fourth sleeve, a thread is arranged on the outer side wall of the first flow pipe, and the threaded groove on the inner side wall of the fourth sleeve is matched with the thread on the outer side wall of the first flow pipe to realize the rotational connection of the fourth sleeve and the first flow pipe.

[0021] In an exemplary embodiment of the present disclosure, a second sealing gasket is arranged in the fourth sleeve, the outer side wall of the second sealing gasket is fitted with the inner side wall of the fourth sleeve, and the opposite two end surfaces of the second sealing gasket abut the limiting plate and the first flow pipe, respectively.

[0022] The technical solutions provided by the embodiments of the present disclosure have at least the following advantages.

[0023] The embodiments of the present disclosure make the first flow pipes detachably connected, make the second flow pipe detachably connected with any two adjacent first flow pipes, and further set a second switch valve between the first flow pipe and the second filter structure, set at least a first switch valve on each of the two adjacent first flow pipes, and make the two adjacent first switch valves in the two adjacent first flow pipes located at the inner side of the corresponding second flow pipe, so that any one of the first switch valves and the second switch valve can be opened to control the flow of LPG fuel in the first flow pipe and / or the second flow pipe, and then the other one can continue to transport and filter LPG fuel while the filter structure on the first flow pipe or the second flow pipe is cleaned, so that the transportation efficiency of the whole LPG fuel control pipeline can be ensured.

[0024] Other characteristics and advantages of the present application will become apparent from the following detailed description, or will be learned by practice of the present application.

[0025] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0027] Figure 1 A structure schematic diagram of an LPG fuel control pipeline in the embodiments of the present disclosure is shown.

[0028] Figure 2 A split structure schematic diagram of an LPG fuel control pipeline in the embodiments of the present disclosure is shown. Figure 1

[0029] Figure 3 A structure schematic diagram of a communication assembly in the embodiments of the present disclosure is shown.

[0030] Explanation of reference signs:

[0031] ​11. First flow tube; 12. Second flow tube; 121. Flow pipe; 122. Sleeve sleeve; 123. Insert sleeve; 124. Insertion tube assembly; 21. First filter structure; 22. Second filter structure; 31. First switching valve; 32. Second switching valve; 301. Valve body; 302. Valve core; 303. Valve stem; 304. Drive component; 4. Connecting pipe; 5. Connecting sleeve; 51. First sleeve; 52. Second sleeve; 6. Connecting assembly; 61. Connecting cylinder; 62. Limiting plate; 63. Limiting cylinder; 631. Third sleeve; 632. Fourth sleeve; 71. First sealing gasket; 72. Second sealing gasket. Detailed Implementation

[0032] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0033] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0034] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application, and should not be construed as limiting the present application.

[0035] LPG (Liquefied Petroleum Gas) fuel refers to liquefied petroleum gas, a common clean energy source mainly composed of propane and butane. After compression, it is stored and transported in a liquid state. When using LPG fuel, pipeline transportation is required.

[0036] like Figures 1 to 3As shown, the present disclosure provides an LPG fuel control pipeline, which comprises a plurality of first flow pipes 11 and a second flow pipe 12 arranged on any two adjacent first flow pipes 11. The plurality of first flow pipes 11 are connected in sequence along the axial direction, and any two adjacent first flow pipes 11 are communicated and detachably connected, and the second flow pipe 12 is detachably connected with the first flow pipe 11.

[0037] As shown, in some embodiments, two first flow pipes 11 can be included in the LPG fuel control pipeline, and at this time, one second flow pipe 12 is included in the LPG fuel control pipeline, and the opposite ends of the second flow pipe 12 are connected with the two first flow pipes 11, respectively. Figure 1

[0038] In some embodiments, more than three first flow pipes 11 can also be included in the LPG fuel control pipeline.

[0039] For example, three first flow pipes 11 can be included in the LPG fuel control pipeline, and at this time, two second flow pipes 12 can be included in the LPG fuel control pipeline. Any two adjacent first flow pipes 11 are connected with a second flow pipe 12, respectively.

[0040] However, it is not limited to this, when three first flow pipes 11 are included in the LPG fuel control pipeline, one second flow pipe 12 can also be included in the LPG fuel control pipeline, which can be connected with any two adjacent first flow pipes 11 of the three first flow pipes 11, or the second flow pipe 12 can be connected with two non-adjacent first flow pipes 11 of the three first flow pipes 11.

[0041] In some embodiments, at least one communication hole is arranged on each first flow pipe 11.

[0042] Specifically, the communication hole is arranged on the side wall of the first flow pipe 11 and penetrates the side wall on one side of the first flow pipe 11, and the axis of the communication hole extends along the radial direction of the first flow pipe 11.

[0043] The opposite ends of the second flow pipe 12 in the present disclosure can be opposite to the communication holes on the two adjacent first flow pipes 11, respectively, so as to communicate with the two adjacent first flow pipes 11 through the communication holes.

[0044] In some embodiments, one communication hole can be arranged on each first flow pipe 11 in the LPG fuel control pipeline.

[0045] For example, as shown, Figure 1 ​As shown, when the LPG fuel control line includes two first flow pipes 11, each of the two first flow pipes 11 can be provided with a connecting hole, and the two connecting holes are respectively opposite to the two ends of the second flow pipe 12, so that the first flow pipe 11 and the second flow pipe 12 are connected.

[0046] In some embodiments, a connecting hole may be provided on a portion of the first flow pipe 11 in the LPG fuel control line, and two connecting holes may be provided on the remaining portion of the first flow pipe 11.

[0047] For example, when the LPG fuel control line includes three first flow pipes 11 and two second flow pipes 12, a connecting hole can be provided on the two first flow pipes 11 located at opposite ends in the axial direction, and two connecting holes arranged axially at intervals can be provided on the first flow pipe 11 located in the middle, so as to be opposite to the two second flow pipes 12 respectively.

[0048] However, this is not the only option. When the LPG fuel control line includes three first flow pipes 11 and two second flow pipes 12, two connecting holes can be provided on each of the three first flow pipes 11 to facilitate flexible installation among the multiple first flow pipes 11 in the LPG fuel control line. After connecting the three first flow pipes 11, the connecting holes in the three first flow pipes 11 that are not opposite to the second flow pipes 12 can be sealed according to the position of each first flow pipe 11 and the installation position between the second flow pipe 12 and the first flow pipe 11, to prevent LPG fuel from leaking from the connecting holes.

[0049] like Figure 2 As shown in this disclosure, a first filter structure 21 is provided between two adjacent first flow pipes 11 for filtering LPG fuel flowing within the first flow pipe 11. A second filter structure 22 is provided between the second flow pipe 12 and the first flow pipe 11 for filtering LPG fuel flowing within the second flow pipe 12.

[0050] In this embodiment, at least one first switching valve 31 is provided on each of any two adjacent first flow pipes 11, and two adjacent first switching valves 31 on two adjacent first flow pipes 11 are located inside the corresponding second flow pipe 12. Furthermore, this disclosure also provides a second switching valve 32 between the second filter structure 22 and the first flow pipe 11. Either the first switching valve 31 or the second switching valve 32 can be opened.

[0051] It should be noted that the inner side of the second flow pipe 12 refers to the side of either end of the second flow pipe 12 that is closer to the other end. That is, the two adjacent first switching valves 31 in the two adjacent first flow pipes 11 are located between the two opposite ends of the corresponding second flow pipe 12.

[0052] like Figure 1As shown, in some embodiments, when the LPG fuel control pipeline includes two first flow pipes 11 and a second flow pipe 12 connected with the two first flow pipes 11, one first switch valve 31 can be arranged on each of the two first flow pipes 11, and the first switch valves 31 are located inside the second flow pipe 12.

[0053] However, the number of first flow pipes 11 in the LPG fuel control pipeline is not limited to two, and in other embodiments, the LPG fuel control pipeline can include more than three first flow pipes 11. At this time, two first switch valves 31 can be arranged on each of the first flow pipes 11; or two first switch valves 31 can be arranged on some of the first flow pipes 11, and one first switch valve 31 can be arranged on the other first flow pipes 11.

[0054] For example, when the LPG fuel control pipeline includes three first flow pipes 11 and two second flow pipes 12 connected in sequence along the axial direction, and one second flow pipe 12 is arranged on each of the two adjacent first flow pipes 11, two first switch valves 31 can be arranged on the middle first flow pipe 11, and the two first switch valves 31 are arranged in an axial interval. Meanwhile, one first switch valve 31 can be arranged on each of the other two first flow pipes 11, and when the second flow pipe 12 is connected with the first flow pipe 11, two first switch valves 31 are arranged inside the second flow pipe 12, and the two first switch valves 31 are arranged on one first flow pipe 11.

[0055] However, when the LPG fuel control pipeline includes three first flow pipes 11 and two second flow pipes 12 connected in sequence along the axial direction, and one second flow pipe 12 is arranged on each of the two adjacent first flow pipes 11, two first switch valves 31 can be arranged on each of the three first flow pipes 11 in an axial interval, so as to facilitate flexible assembly between the multiple first flow pipes 11 in the LPG fuel control pipeline.

[0056] The embodiments of the present disclosure can detachably connect the first flow pipes 11, detachably connect the second flow pipe 12 with any two adjacent first flow pipes 11, arrange a second switch valve 32 between the first flow pipe 11 and the second filter structure 22, arrange at least one first switch valve 31 on each of the two adjacent first flow pipes 11, and arrange two adjacent first switch valves 31 in the two adjacent first flow pipes 11 inside the corresponding second flow pipe 12, so that any one of the first switch valves 31 and the second switch valves 32 can be opened to control the flow of LPG fuel in the first flow pipe 11 and / or the second flow pipe 12.

[0057] Specifically, when the first filter structure 21 between any two adjacent first flow pipes 11 becomes blocked or damaged, the two first switching valves 31 adjacent to the first filter structure 21 can be closed. At the same time, the second switching valve 32 between the second flow pipe 12 and the first flow pipe 11 corresponding to the first filter structure 21 can be opened. This allows the LPG fuel in the upstream first flow pipe 11 to be filtered by the second filter structure 22 between the second flow pipe 12 and the first flow pipe 11 and then flow into the downstream first flow pipe 11. This prevents the LPG fuel from flowing through the first filter structure 21 between the two adjacent first flow pipes 11, making it easier to disassemble the first filter structure 21 from the first flow pipe 11 and to repair or replace the first filter structure 21. It also improves the problem that the LPG fuel control pipeline cannot continue to transport and filter LPG fuel when repairing or replacing the first filter structure 21, thereby ensuring the overall transport efficiency of the LPG fuel control pipeline.

[0058] It should be noted that the second flow tube 12 corresponding to the first filter structure 21 refers to the second flow tube 12 connected to the two first flow tubes 11 where the first filter structure 21 is located.

[0059] Similarly, when the second filter structure 22 between any second flow pipe 12 and the first flow pipe 11 becomes blocked or damaged, the second switching valve 32 between the second flow pipe 12 and the first flow pipe 11 can be closed. That is, the two second switching valves 32 located between the opposite ends of the second flow pipe 12 and the first flow pipe 11 can be closed. At the same time, the two first switching valves 31 on the two first flow pipes 11 connected to the second flow pipe 12 and located inside the second flow pipe 12 can be opened, so that LPG fuel can pass through the first filter structure between the two adjacent first flow pipes 11. After filtration by the second filter structure 21, the LPG fuel flows into another first flow pipe 11 located downstream. This prevents LPG fuel from flowing through the second filter structure 22 to the second flow pipe 12 connected to the two adjacent first flow pipes 11, so that the second filter structure 22 can be removed from the second flow pipe 12 and the first flow pipe 11. This allows for the maintenance or replacement of the second filter structure 22 and also improves the problem that the LPG fuel control pipeline cannot continue to transport and filter LPG fuel when the second filter structure 22 is being maintained or replaced. This ensures the overall transport efficiency of the LPG fuel control pipeline.

[0060] like Figure 2 As shown, in some embodiments, one or more of the first switching valve 31 and the second switching valve 32 may include: valve housing 301, valve core 302, valve stem 303 and drive member 304.

[0061] The valve housing 301 is hollow, forming a valve passage. A valve core 302 is disposed within the valve housing 301 and is rotatable relative to it. The valve core 302 has a through-hole. A valve stem 303 is connected to the valve core 302 to control its rotation. A drive member 304 is connected to the valve stem 303 to drive its rotation.

[0062] Specifically, in the first switching valve 31, the valve housing 301 is disposed inside the first flow pipe 11, and the outer wall of the valve housing 301 is in contact with the inner wall of the first flow pipe 11. The valve stem 303 is disposed through the valve housing 301 and the first flow pipe 11, and the driving member 304 is located outside the first flow pipe 11. When the first switching valve 31 is opened, the extension direction of its valve passage is the same as the extension direction of the first flow pipe 11, the valve port is opposite to the valve passage, and the valve passage is connected to the first flow pipe 11.

[0063] In the second switching valve 32, the valve housing 301 is disposed inside the connecting pipe 4, and the outer wall of the valve housing 301 is in contact with the inner wall of the connecting pipe 4. The valve stem 303 is disposed through the valve housing 301 and the connecting pipe 4, and the driving component 304 is located outside the connecting pipe 4. When the second switching valve 32 is opened, the extension direction of its valve passage is the same as the extension direction of the connecting pipe 4, the valve port is opposite to the valve passage, and the valve passage is connected to the connecting pipe 4.

[0064] In this embodiment, the first switching valve 31 and the second switching valve 32 can be ball valves, in which case the valve passage can be a circular passage. However, it is not limited to this; the first switching valve 31 and the second switching valve 32 can also be other switching valves besides ball valves, for controlling the flow direction of LPG fuel in the LPG fuel control pipeline.

[0065] like Figure 1 and Figure 2 As shown, in some embodiments, the LPG fuel control line may include a connecting pipe 4, the bottom end of which is opposite to the connecting hole and connected to the first flow pipe 11, the top end of which is in contact with the bottom end of the second flow pipe 12, the connecting pipe 4 being connected to the first flow pipe 11 and the second flow pipe 12, and the connecting pipe 4 being detachably connected to the second flow pipe 12.

[0066] The second filter structure 22 is located between the connecting pipe 4 and the second flow pipe 12, and the second switching valve 32 is provided on the connecting pipe 4 to control the flow of LPG fuel in the second flow pipe 12.

[0067] In this embodiment of the present disclosure, the connecting pipe 4 can be fixedly connected to the first flow pipe 11.

[0068] For example, the connecting pipe 4 can be welded to the first flow pipe 11, but it is not limited to this. The connecting pipe 4 can also be detachably connected to the first flow pipe 11.

[0069] The present disclosure sets the connecting pipe 4, which facilitates the detachable connection between the second flow pipe 12 and the first flow pipe 11, and also avoids the problem of LPG fuel leakage from the opposite communication hole of the second flow pipe 12 when the second flow pipe 12 and the first flow pipe 11 are split by closing the second switch valve 32 on the connecting pipe 4.

[0070] As shown in Figure 1 and Figure 2 In some embodiments, the LPG fuel control pipeline can include a connecting sleeve 5, which includes a first sleeve 51 and a second sleeve 52 in communication with each other, the top surface of the second sleeve 52 is connected to the bottom surface of the first sleeve 51, and the orthographic projection of the top surface of the second sleeve 52 on the first sleeve 51 is located in the bottom surface of the first sleeve 51.

[0071] The first sleeve 51 is sleeved on the outer periphery of the second flow pipe 12 and can rotate relative to the second flow pipe 12, and the inner side wall of the first sleeve 51 is fitted with the outer side wall of the second flow pipe 12 to improve the problem of LPG fuel leakage. The second sleeve 52 is sleeved on the outer periphery of the connecting pipe 4 and is detachably connected with the connecting pipe 4.

[0072] The connecting sleeve 5 of the present disclosure can be used to achieve the detachable connection between the second flow pipe 12 and the connecting pipe 4, and can also strengthen the stability of the connection between the second flow pipe 12 and the connecting pipe 4, improve the sealing between the second flow pipe 12 and the connecting pipe 4, thereby reducing the possibility of disconnection between the second flow pipe 12 and the connecting pipe 4, and improving the problem of LPG fuel leakage.

[0073] In some embodiments, the inner side wall of the second sleeve 52 can be provided with a threaded groove, and the outer side wall of the top of the connecting pipe 4 can be provided with a thread, and the threaded groove on the inner side wall of the second sleeve 52 is matched with the thread on the outer side wall of the connecting pipe 4 to realize the rotational connection of the connecting sleeve 5 and the connecting pipe 4.

[0074] Specifically, the installation process between the second flow pipe 12 and the first flow pipe 11 can be: sleeving the connecting sleeve 5 on the outer periphery of one end of the second flow pipe 12, and connecting the connecting sleeve 5 sleeved on the outer periphery of the second flow pipe 12 with the connecting pipe 4 on the first flow pipe 11, so that the second sleeve 52 is sleeved on the top of the connecting pipe 4 away from the top of the first flow pipe 11. Then, rotate the connecting sleeve 5 in the circumferential direction to move the connecting sleeve 5 towards the center of the connecting pipe 4 until the top surface of the connecting pipe 4 abuts against the bottom surface of the second flow pipe 12.

[0075] In some embodiments, the second filter structure 22 is arranged in the connecting sleeve 5, and an outer circumferential surface of the second filter structure 22 is attached to an inner side wall of the first sleeve 51.

[0076] As shown in FIG. 1, in some embodiments, a first sealing gasket 71 can be arranged between the second filter structure 22 and the connecting pipe 4, an outer side wall of the first sealing gasket 71 can be attached to an inner side wall of the second sleeve 52, a bottom surface of the first sealing gasket 71 can abut against a top surface of the connecting pipe 4, and a top surface of the first sealing gasket 71 can abut against a bottom surface of the second filter structure 22. Figure 2

[0077] The embodiments of the present disclosure can strengthen the sealing between the second filter structure 22 and the connecting pipe 4 by arranging the first sealing gasket 71 between the second filter structure 22 and the connecting pipe 4, thereby reducing the problem of leakage of LPG fuel from the gap between the second filter structure 22 and the connecting pipe 4.

[0078] As shown in FIG. 1, in some embodiments, the second flow pipe 12 can include two plug pipe assemblies 124 and a flow pipe 121, and the two plug pipe assemblies 124 are respectively arranged at opposite ends of the flow pipe 121. Figure 1 Figure 2 As shown in FIG. 1, in some embodiments, the second flow pipe 12 can include two plug pipe assemblies 124 and a flow pipe 121, and the two plug pipe assemblies 124 are respectively arranged at opposite ends of the flow pipe 121.

[0079] For example, the flow pipe 121 in the embodiments of the present disclosure can be a U-shaped pipe, and the plug pipe assemblies 124 are arranged at opposite ends of the flow pipe 121.

[0080] As shown in FIG. 1, in some embodiments, the plug pipe assembly 124 can include a sleeve 122 and a plug 123 which are in communication with each other, the sleeve 122 is arranged around an outer circumference of the flow pipe 121, and an inner side wall of the sleeve 122 is attached to an outer side wall of the flow pipe 121, so as to improve the problem of leakage of LPG fuel from the gap between the plug pipe assembly 124 and the flow pipe 121. Figure 2 A top surface of the plug 123 is connected to a bottom surface of the sleeve 122, and a normal projection of the top surface of the plug 123 on the sleeve 122 is located in the bottom surface of the sleeve 122 close to the plug 123. The plug 123 is embedded in the first sleeve 51, and an outer side wall of the plug 123 is attached to an inner side wall of the first sleeve 51, so as to improve the problem of leakage of LPG fuel from the gap between the plug pipe assembly 124 and the connecting sleeve 5.

[0081] In the embodiments of the present disclosure, after the plug pipe assembly 124 is sleeved around the outer circumference of the flow pipe 121, the plug pipe assembly 124 is arranged opposite to the connecting pipe 4, and the connecting sleeve 5 is used to realize detachable connection of the plug pipe assembly 124 and the connecting pipe 4. After the second flow pipe 12 is connected to the connecting pipe 4, a bottom surface of the plug 123 abuts against a top surface of the connecting pipe 4.

[0082] ​​​

[0083] The second flow pipe 12 is provided with the flow pipe 121 and the plug-in assembly 124, so that the flow pipe 121 is connected with the connecting sleeve 5 by the plug-in assembly 124, and then the flow pipe 121 is detachably connected with the connecting pipe 4 through the connecting sleeve 5. Meanwhile, compared with the flow pipe 121, the plug-in assembly 124 has a smaller size and a lower cost. When the connecting sleeve 5 is rotated circumferentially to realize the connection and fixation of the flow pipe 121 and the connecting pipe 4, the plug-in assembly 124 can improve the problem that the connecting sleeve 5 directly rotates and rubs with the flow pipe 121, and causes damage to the flow pipe 121, and then can reduce the cost and difficulty of maintenance of the LPG fuel control pipeline.

[0084] As shown in Figure 2 In some embodiments, the outer diameter of the sleeve 122 is greater than the inner diameter of the first sleeve 51, and the bottom surface of the sleeve 122 abuts against the top surface of the first sleeve 51, so as to strengthen the support performance of the connecting sleeve 5 on the plug-in assembly, and can strengthen the sealing performance between the sleeve 122 and the connecting sleeve 5, and then reduce the possibility of leakage of LPG fuel from the gap between the sleeve 122 and the connecting sleeve 5.

[0085] In the embodiments of the present disclosure, the bottom surface of the plug-in sleeve 123 is flush with the bottom surface of the first sleeve 51, so that when the second flow pipe 12 is connected with the connecting pipe 4, the bottom surface of the plug-in sleeve 123 can abut against the top surface of the connecting pipe 4, and the possibility of leakage of LPG fuel from the gap between the plug-in sleeve 123 and the connecting pipe 4 is reduced. Meanwhile, by making the bottom surface of the plug-in sleeve 123 flush with the bottom surface of the first sleeve 51, the problem of space occupation of the plug-in sleeve 123 on the second sleeve 52 can be improved, and then the stable connection of the connecting sleeve 5 with the connecting pipe 4 can be ensured.

[0086] As shown in Figures 1 to 3 In some embodiments, the LPG fuel control pipeline can include a communication assembly 6 arranged between two adjacent first flow pipes 11. The communication assembly 6 can include a connecting cylinder 61, and two limiting plates 62 and two limiting cylinders 63 arranged on the connecting cylinder 61.

[0087] Specifically, the connecting cylinder 61 in the communication assembly 6 is arranged between the two first flow pipes 11 and communicates with the first flow pipes 11. The first filter structure 21 can be arranged in the connecting cylinder 61, and the outer peripheral surface of the first filter structure 21 can be attached to the inner side wall of the connecting cylinder 61.

[0088] The length of the connecting cylinder 61 is less than the length of the corresponding connected first flow pipe 11.

[0089] Two limiting plates 62 are respectively arranged at the axial two ends of the connecting cylinder body 61. One end surface of the limiting plate 62 is connected with the corresponding end surface of the connecting cylinder body 61, and the other end surface is abutted with the end surface of the adjacent first flow-through pipe 11. The limiting plate 62 is internally hollow, the end surface of the limiting plate 62 covers the end surface of the connecting cylinder body 61, and the outer periphery of the limiting plate 62 is outwardly protrudingly arranged relative to the outer periphery of the connecting cylinder body 61, that is, the outer diameter of the limiting plate 62 is greater than the outer diameter of the connecting cylinder body 61. The limiting space is formed between the limiting plate 62 and the outer side wall of the connecting cylinder body 61.

[0090] Two limiting cylinders 63 are sleeved on the outer periphery of the connecting cylinder body 61 and can rotate relative to the connecting cylinder body 61. The two limiting cylinders 63 are arranged corresponding to the two limiting plates 62.

[0091] Specifically, the limiting cylinder 63 can include a third sleeve 631 and a fourth sleeve 632 which are in communication with each other. The third sleeve 631 is located between the two limiting plates 62, the inner periphery of the third sleeve 631 exceeds the fourth sleeve 632 inwardly, and the inner diameter of the third sleeve 631 is smaller than the outer diameter of the limiting plate 62, and the outer periphery of the third sleeve 631 exceeds the fourth sleeve 632 outwardly. The fourth sleeve 632 is detachably connected with the first flow-through pipe 11.

[0092] Among them, the part of the inner periphery of the third sleeve 631 exceeding the fourth sleeve 632 inwardly can form a limiting part, and the limiting part is located in the limiting space. The limiting cylinder 63 can move along the axial direction relative to the connecting cylinder body 61, so that the fourth sleeve 632 can be more easily sleeved on the outer periphery of the first flow-through pipe 11. At the same time, when the limiting cylinder 63 moves along the axial direction, the limiting plate 62 can limit the movement range of the limiting cylinder 63, so as to improve the problem of the limiting cylinder 63 falling off from the connecting cylinder body 61, and can realize the stability of the connection between the connecting cylinder body 61 and the first flow-through pipe 11.

[0093] In some embodiments, a threaded groove is arranged on the inner side wall of the fourth sleeve 632, a thread is arranged on the outer side wall of the first flow-through pipe 11, the threaded groove on the inner side wall of the fourth sleeve 632 is matched with the thread on the outer side wall of the first flow-through pipe 11, and the fourth sleeve 632 can be sleeved on the outer periphery of the first flow-through pipe 11 and be rotationally connected with the first flow-through pipe 11 through the thread.

[0094] Specifically, the installation process between the connecting cylinder body 61 and the first flow-through pipe 11 can be: sleeving the limiting cylinder 63 in the connecting cylinder body 61 on the outer periphery corresponding to the first flow-through pipe 11, then rotating the limiting cylinder 63 along the circumferential direction, moving the limiting cylinder 63 to the center corresponding to the first flow-through pipe 11, so as to increase the connecting surface between the inner side wall of the limiting cylinder 63 and the outer side wall of the first flow-through pipe 11. When the first flow-through pipe 11 is abutted on the corresponding limiting plate 62 in the communication assembly 6, the first flow-through pipe 11 and the communication assembly 6 complete the installation.

[0095] like Figure 3 As shown, in some embodiments, a second sealing gasket 72 may be provided inside the fourth sleeve 632. The outer wall of the second sealing gasket 72 may fit against the inner wall of the fourth sleeve 632, and the opposite end faces of the second sealing gasket 72 abut against the limiting plate 62 and the first flow pipe 11, respectively. This embodiment of the present disclosure strengthens the sealing of the connection between the limiting plate 62 and the first flow pipe 11 by providing a second sealing gasket 72 between them, thereby reducing the problem of LPG fuel leakage from the gap between the limiting plate 62 and the first flow pipe 11.

[0096] In the description of this specification, the terms "first," "second," "third," "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0097] Furthermore, it should be noted that terms such as "upper," "lower," "left," and "right" are used only for distinction and convenience of description, and do not impose any positional limitations on the embodiments of the present invention. For example, "upper" in practice can refer to "lower," "left," or "right." In this disclosure, unless otherwise explicitly specified and limited, terms such as "assembly" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this disclosure can be understood according to the specific circumstances.

[0098] In the description of this specification, references to terms such as "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0099] Although the embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are merely exemplary, and are not to be understood as limiting the present application, and any changes, modifications, replacements and variations of the above embodiments made by those skilled in the art within the scope of the present application should be included in the scope of the present application.

Claims

1. An LPG fuel control circuit, characterised in that, The application relates to an LPG fuel control pipeline. The LPG fuel control pipeline comprises a plurality of first flow pipes which are sequentially connected in the axial direction; any two adjacent first flow pipes are communicated and detachably connected; at least one communication hole is formed in each first flow pipe, and the axial line of the communication hole extends in the radial direction; a first filter structure is arranged between any two adjacent first flow pipes to filter LPG fuel flowing in the first flow pipes; A second flow pipe is arranged on any two adjacent first flow pipes, and the opposite ends of the second flow pipe are opposite to the communication holes on the two adjacent first flow pipes so that the second flow pipe is communicated with the two adjacent first flow pipes; the second flow pipe is detachably connected with the first flow pipes; a second filter structure is arranged between the second flow pipe and the first flow pipes to filter LPG fuel flowing in the second flow pipe; Wherein, at least one first switch valve is arranged on any two adjacent first flow pipes respectively, and the two adjacent first switch valves on the two adjacent first flow pipes are located on the inner side of the corresponding second flow pipe; a second switch valve is arranged between the second filter structure and the first flow pipes; and the first switch valve and the second switch valve can be opened at will.

2. An LPG fuel control circuit according to claim 1, characterised in that, The LPG fuel control pipeline comprises a connecting pipe, the bottom end of the connecting pipe is opposite to the communication hole and is connected with the first flow pipe, the top end of the connecting pipe abuts against the bottom end of the second flow pipe, the connecting pipe is communicated with the first flow pipe and the second flow pipe, and the connecting pipe is detachably connected with the second flow pipe; the second filter structure is located between the connecting pipe and the second flow pipe, and the second switch valve is arranged on the connecting pipe to control the flow of LPG fuel in the second flow pipe.

3. An LPG fuel control circuit according to claim 2, characterised in that, The LPG fuel control pipeline comprises a connecting sleeve, the connecting sleeve comprises a first sleeve and a second sleeve which are communicated with each other, the top surface of the second sleeve is connected with the bottom surface of the first sleeve, and the orthographic projection of the top surface of the second sleeve on the first sleeve is located in the bottom surface of the first sleeve; Wherein, the first sleeve is sleeved on the outer periphery of the second flow pipe and can rotate relative to the second flow pipe, the inner side wall of the first sleeve is fitted with the outer side wall of the second flow pipe; the second sleeve is sleeved on the outer periphery of the connecting pipe and is detachably connected with the connecting pipe; the second filter structure is arranged in the connecting sleeve, and the outer peripheral surface of the second filter structure is fitted with the inner side wall of the first sleeve.

4. An LPG fuel control circuit according to claim 3, characterised in that, A threaded groove is arranged on the inner side wall of the second sleeve, a thread is arranged on the outer side wall of the top part of the connecting pipe, and the threaded groove on the inner side wall of the second sleeve is matched with the thread on the outer side wall of the connecting pipe to realize the rotary connection of the connecting sleeve and the connecting pipe.

5. The LPG fuel control circuit of claim 3, wherein, The second flow pipe comprises two plug pipe assemblies and a flow pipe, and the two plug pipe assemblies are located at the opposite ends of the flow pipe respectively. The cannula assembly comprises a sleeve and a plug, the sleeve is arranged around the outer periphery of the flow channel, and the inner side wall of the sleeve is fitted to the outer side wall of the flow channel; the top surface of the plug is connected to the bottom surface of the sleeve, and the orthographic projection of the top surface of the plug on the sleeve is located within the bottom surface of the sleeve; the plug is embedded in the first sleeve, and the outer side wall of the plug is fitted to the inner side wall of the first sleeve; the bottom surface of the plug is in abutment with the top surface of the connecting pipe.

6. An LPG fuel control circuit according to claim 5, characterised in that, The outer diameter of the sleeve is greater than the inner diameter of the first sleeve, and the bottom surface of the sleeve is in abutment with the top surface of the first sleeve; the bottom surface of the plug is flush with the bottom surface of the first sleeve.

7. The LPG fuel control circuit of claim 3, wherein, A first sealing gasket is arranged between the second filter structure and the connecting pipe, the outer side wall of the first sealing gasket is fitted to the inner side wall of the second sleeve, the bottom surface of the first sealing gasket is in abutment with the top surface of the connecting pipe, and the top surface of the first sealing gasket is in abutment with the bottom surface of the second filter structure.

8. The LPG fuel control circuit of claim 1, wherein, The LPG fuel control pipeline comprises a communication assembly arranged between two adjacent first flow channels; the communication assembly comprises: a connecting cylinder arranged between the two first flow channels and in communication with the first flow channels; the connecting cylinder is internally provided with the first filter structure, and the inner side wall of the connecting cylinder is fitted to the outer peripheral surface of the first filter structure; two limiting plates arranged at the axial ends of the connecting cylinder; one end surface of the limiting plate is connected to the corresponding end surface of the connecting cylinder, and the other end surface is in abutment with the end surface of the adjacent first flow channel; the limiting plate is internally hollow, and the end surface of the limiting plate covers the end surface of the connecting cylinder; the outer periphery of the limiting plate is arranged outwardly protruding relative to the outer periphery of the connecting cylinder; two limiting cylinders are arranged around the outer periphery of the connecting cylinder and can rotate relative to the connecting cylinder; the two limiting cylinders are arranged corresponding to the two limiting plates; the limiting cylinder comprises a third sleeve and a fourth sleeve in communication with each other; the third sleeve is located between the two limiting plates, the inner periphery of the third sleeve exceeds the fourth sleeve inwardly, and the inner diameter of the third sleeve is smaller than the outer diameter of the limiting plate; the outer periphery of the third sleeve exceeds the fourth sleeve outwardly; the fourth sleeve is detachably connected to the first flow channel.

9. An LPG fuel control circuit according to claim 8, characterised in that, The inner side wall of the fourth sleeve is provided with a threaded groove, the outer side wall of the first flow channel is provided with a thread, and the threaded groove on the inner side wall of the fourth sleeve is matched with the thread on the outer side wall of the first flow channel to realize the rotational connection of the fourth sleeve and the first flow channel.

10. An LPG fuel control circuit according to claim 8, characterised in that, The fourth sleeve is internally provided with a second sealing gasket, the outer side wall of the second sealing gasket is fitted to the inner side wall of the fourth sleeve, and the opposite end surfaces of the second sealing gasket are in abutment with the limiting plate and the first flow channel, respectively.

Images