A diesel engine oil inlet pipe support and fixing structure

Abstract

This utility model provides a diesel engine fuel inlet pipe support and fixing structure, which includes a fixing plate, a fastening assembly, a fixing ring, and a connecting assembly. The fixing plate has mounting holes for fitting the fixing plate to the connection point between the fuel inlet pipe and the hand pump. An open slot is provided on one side of the mounting holes to facilitate the installation of the fixing plate to the connection point. Fasteners are used to secure the fixing plate to the fuel inlet pipe. The fixing ring is fixed to a pipe or crossbeam on the diesel engine near the hand pump, and the connecting assembly further strengthens the stability of the fuel inlet pipe and hand pump connection, preventing vibration during operation from affecting the stability of the connection position, thus ensuring normal diesel engine operation and reducing future maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of oil inlet pipe installation technology, specifically relating to a diesel engine oil inlet pipe support and fixing structure. Background Technology

[0002] The diesel engine in a diesel locomotive not only pulls the locomotive but also supplies power to the trains behind it. Therefore, the diesel engine is of paramount importance during operation. The fuel inlet pipe on the diesel engine is the pipeline that supplies fuel from the external fuel system to the internal fuel system, and the hand pump is responsible for automatically purging air from the fuel system. The fuel inlet pipe and the hand pump are fixed together by a hollow bolt. The fuel inlet pipe connector and the hollow bolt are made of alloy steel, and the hand pump connection hole is made of aluminum. After connection, fuel from the fuel inlet pipe enters the hand pump through the hollow bolt, circulates within the hand pump, and then enters the combustion chamber through the diesel engine's high-pressure fuel pump and fuel lines, ensuring complete combustion until combustion. However, under high-speed operation, the engine body and components are constantly under high-frequency vibration. With prolonged vibration, because the hand pump is only connected to the fuel inlet pipe by a hollow bolt and has its own weight, the fuel inlet pipe and hand pump can easily loosen during use. External air can then enter the fuel system along the fuel inlet pipe, and in severe cases, this can affect the normal operation of the diesel engine. Utility Model Content

[0003] This utility model provides a diesel engine fuel inlet pipe support and fixing structure, which aims to solve the problem in the prior art that the fuel inlet pipe and the hand pump on the diesel engine of the internal combustion locomotive are prone to loosening, affecting the normal use of the diesel engine.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a diesel engine oil inlet pipe support and fixing structure, comprising: A fixing plate is provided with mounting holes for installation at the connection between the oil inlet pipe and the hand pump, and an opening groove is provided on one side of the mounting holes; A fastening assembly, provided on the fixing plate, is used to fix the connection between the oil inlet pipe and the hand pump inside the opening groove; A retaining ring, used to secure it to the diesel engine; A connecting component is detachably installed between the fixing ring and the fixing plate for connecting and fixing the fixing ring and the fixing plate.

[0005] In one possible implementation, the fastening assembly includes: The connector is provided through the sidewalls of the fixing plate on both sides of the opening slot; Fasteners are threadedly connected to the connector and are used to abut against the side wall of the fixing plate.

[0006] In one possible implementation, two wing plates are bent and disposed on the fixing plate, with the two wing plates located on both sides of the opening slot, respectively.

[0007] In one possible implementation, the retaining ring includes two semicircular rings and a tightening assembly for tightening the two semicircular rings, the connecting assembly being connected to one of the semicircular rings.

[0008] In one possible implementation, the connection component includes: The connecting plate has one end detachably mounted on the fixing plate and the other end provided with a slot. A plug-in plate is fixedly mounted on the retaining ring and is used to be inserted into the slot. A fixing component for securing the plug plate to the connecting plate.

[0009] In one possible implementation, the fixing component includes: There are two sliders, and the two sliders respectively abut against the two sides of the connecting plate; A fixing rod is fixedly installed on the plug-in plate and extends through the slider; The fixing rod has screw-on fasteners at both ends, which are used to press the slider against the side of the connecting plate.

[0010] In one possible implementation, both ends of the slider are provided with openings for mounting the fixing rod.

[0011] In one possible implementation, the fixing ring extends outward and is provided with a side plate connected to the plug plate, the plug plate and the side plate being perpendicular to each other, and the connection between the plug plate and the side plate being arranged in a spiral shape.

[0012] In one possible implementation, the sidewall of the slider is provided with a groove for mounting the connecting plate.

[0013] The solution shown in this application, compared with the prior art, incorporates a fixing plate with mounting holes for fitting onto the connection between the fuel inlet pipe and the hand pump. An open slot is provided on one side of the mounting holes to facilitate installation of the fixing plate onto the connection. Fasteners are used to secure the fixing plate to the fuel inlet pipe. Furthermore, a retaining ring is fixed to a pipe or crossbeam on the diesel engine near the hand pump, and then a connecting assembly connects and secures the retaining ring to the fixing plate. This further strengthens the stability of the connection between the fuel inlet pipe and the hand pump, preventing vibration during operation from affecting the stability of the connection position, thus ensuring normal operation of the diesel engine and reducing future maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the diesel engine oil inlet pipe support and fixing structure provided in an embodiment of the present utility model; Figure 2 A schematic diagram of the mounting structure of the fixing plate provided in an embodiment of this utility model; Figure 3 A schematic diagram of the connection component provided in an embodiment of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Fixing plate; 11. Wing plate; 2. Fastening assembly; 21. Connector; 22. Fastener; 3. Fixing ring; 31. Semi-circular ring; 311. Side plate; 4. Connecting assembly; 41. Connecting plate; 42. Insert plate; 43. Fixing assembly; 431. Slider; 432. Fixing rod; 433. Tightening component; 5. Diesel engine; 6. Hand pump; 7. Oil inlet pipe. Detailed Implementation

[0016] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] Please refer to the following: Figures 1 to 3 The diesel engine fuel inlet pipe support and fixing structure provided by this utility model will now be described. The diesel engine fuel inlet pipe support and fixing structure includes a fixing plate 1, a fastening assembly 2, a fixing ring 3, and a connecting assembly 4. The fixing plate 1 has a mounting hole for mounting to the connection point between the fuel inlet pipe 7 and the hand pump 6, and an opening groove is provided on one side of the mounting hole; the fastening assembly 2 is disposed on the fixing plate 1 and is used to fix the connection point between the fuel inlet pipe 7 and the hand pump 6 inside the opening groove; the fixing ring 3 is used to fix to the diesel engine 5; the connecting assembly 4 is detachably installed between the fixing ring 3 and the fixing plate 1, and is used to connect and fix the fixing ring 3 and the fixing plate 1.

[0018] The diesel engine inlet pipe support and fixing structure provided in this embodiment, compared with the prior art, features a fixing plate 1 with mounting holes for fitting onto the connection between the inlet pipe 7 and the hand pump 6. An opening groove is provided on one side of the mounting holes to facilitate the installation of the fixing plate 1 onto the connection between the inlet pipe 7 and the hand pump 6. Fasteners 22 can be used to secure the fixing plate 1 to the inlet pipe 7. Simultaneously, a fixing ring 3 is fixed to a pipe or crossbeam on the diesel engine 5 near the hand pump 6, and then the fixing ring 3 is connected and fixed to the fixing plate 1 via a connecting assembly 4. This further strengthens the stability of the connection between the inlet pipe 7 and the hand pump 6 through the fixing plate 1 and the fixing ring 3, preventing vibration during operation from affecting the stability of the connection position, thus ensuring the normal operation of the diesel engine 5 and reducing the later maintenance rate.

[0019] Specifically, in this embodiment, during installation, the fixing plate 1 is first fixed to the connection between the oil inlet pipe 7 and the hand pump 6, then the fixing ring 3 is fixed to the nearest pipe on the diesel engine 5, and finally the fixing plate 1 and the fixing ring 3 are connected and fixed together by the connecting assembly 4. The structure is simple and easy to operate on site.

[0020] Specifically, in this embodiment, when installing the hand pump 6, the fixing plate 1 can be first fitted onto the outside of the oil inlet pipe 7 or the hand pump 6 pipeline, then the hand pump 6 can be installed and connected to the oil inlet pipe 7, then the installation position of the fixing plate 1 can be adjusted, and finally the fixing plate 1 can be fixed to the connection between the oil inlet pipe 7 and the hand pump 6 by the fastening component 2.

[0021] In some embodiments, the fastening component 2 described above may be as follows: Figure 1 , Figure 2 The structure shown. See also... Figure 1 , Figure 2 The fastening assembly 2 includes a connector 21 and a fastener 22. The connector 21 penetrates the side walls of the opening slot on both sides of the fixing plate 1; the fastener 22 is threadedly connected to the connector 21 and abuts against the side wall of the fixing plate 1. The connector 21 is a bolt, penetrating the side walls of the opening slot on both sides of the fixing plate 1, and the fastener 22 is threadedly connected to the connector 21. The fastener 22 is a nut. The head of the bolt abuts against the outer side wall of one side of the opening slot, and the nut is threadedly connected to the bolt and can abut against the outer side wall of the other side of the opening slot, thereby tightening the side walls of the opening slot.

[0022] In some embodiments, the fixing plate 1 described above can be as follows: Figure 2 The structure shown. See also Figure 2Two wing plates 11 are bent and arranged on the fixed plate 1, with the two wing plates 11 located on both sides of the opening slot. Wing plates 11 are bent and arranged on both sides of the opening slot on the fixed plate 1, with the two wing plates 11 spaced parallel to each other along the width direction of the opening slot. Each wing plate 11 has a through hole for installing a connector 21. The connector 21 is a bolt, which passes through both wing plates 11. By tightening the fastener 22, the two wing plates 11 can be tightened, thereby tightening the opening slot, thus fixing the fixed plate 1 to the connection between the oil inlet pipe 7 and the hand pump 6.

[0023] Specifically, in this embodiment, the wing plate 11 and the fixing plate 1 are integrally bent and formed, and the wing plate 11 and the fixing plate 1 are arranged perpendicular to each other, thereby improving the connection strength between the wing plate 11 and the fixing plate 1.

[0024] In some embodiments, the aforementioned retaining ring 3 may be adopted as follows: Figure 1 The structure shown. See also Figure 1 The retaining ring 3 includes two semicircular rings 31 and a tightening assembly for tightening the two semicircular rings 31. The connecting assembly 4 is connected to one of the semicircular rings 31. The retaining ring 3 is composed of two semicircular rings 31, which facilitates the installation of the retaining ring 3. Tightening assemblies, which are bolts and nuts, are provided at both ends of the two semicircular rings 31. Through holes for installing bolts are provided at the ends of the semicircular rings 31. This facilitates the fixed installation of the retaining ring 3 onto the pipeline or crossbeam fixed on the diesel engine 5.

[0025] Preferably, in this embodiment, one end of one of the semicircular rings 31 protrudes, thereby facilitating the fixed connection between the connecting component 4 and the semicircular ring 31 and the fixing plate 1.

[0026] In some embodiments, the connection component 4 described above may be as follows: Figure 1 , Figure 3 The structure shown. See also... Figure 1 , Figure 3The connecting assembly 4 includes a connecting plate 41, a plug-in plate 42, and a fixing assembly 43. One end of the connecting plate 41 is detachably mounted on the fixing plate 1, and the other end has a slot. The plug-in plate 42 is fixedly mounted on the fixing ring 3 and is inserted into the slot. The fixing assembly 43 is used to fix the plug-in plate 42 to the connecting plate 41. The connecting plate 41 includes a first connecting portion for fixing to the fixing plate 1, and a second connecting portion bent into the first connecting portion. The slot is located on the second connecting portion, and the first connecting portion is detachably mounted on the fixing plate 1 by bolts and nuts. The second connecting portion is bent upwards at an angle, and a slot is provided in the middle of the second connecting portion, into which the plug-in plate 42 is inserted. This allows for limiting the position of the plug-in plate 42, facilitating the connection and fixing between the plug-in plate 42 and the connecting plate 41. Simultaneously, with the plug-in plate 42 inserted into the slot, during the connection process between the fixing plate 1 and the fixing ring 3, the installation position of the fixing ring 3 on the diesel engine 5 is prone to deviation, which can be adjusted through the connection method between the plug-in plate 42 and the connecting plate 41.

[0027] Specifically, in this embodiment, the second connecting portion on the connecting plate 41 is inclined towards the fixing ring 3, and the connecting plate 41 is connected to the plug plate 42 via a slot. When fixing the fixing ring 3 to the diesel engine 5, it is only necessary to consider that the plug plate 42 on the fixing ring 3 can slide into the slot. There is no need to precisely adjust the position of the fixing ring 3.

[0028] Specifically, in this embodiment, the plug plate 42 is an extension of one end of a single semi-circular ring 31 on the fixing ring 3, and the plug plate 42 and the semi-circular ring 31 are integrally formed.

[0029] Specifically, in this embodiment, a U-shaped groove for installing bolts is provided on the first connecting portion of the connecting plate 41. The bolts and nuts can be installed onto the fixing plate 1 first. When installing the connecting plate 41, the bolts can be inserted into the U-shaped groove and then the nuts can be tightened. This facilitates the connection between the fixing plate 1 and the connecting plate 41.

[0030] In some embodiments, the fixing component 43 described above may be as follows: Figure 3 The structure shown. See also Figure 3The fixing component 43 includes a slider 431, a fixing rod 432, and a tightening member 433. There are two sliders 431, which abut against the two sides of the connecting plate 41 respectively. The fixing rod 432 is fixedly installed on the insertion plate 42 and passes through the slider 431. Both ends of the fixing rod 432 are threadedly connected to the tightening member 433, which is used to press the slider 431 against the side of the connecting plate 41. The fixing rod 432 is fixedly installed on the insertion plate 42 and is perpendicular to it. Sliders 431 are installed on both sides of the connecting plate 41, and the sliders 431 slide along the length of the connecting plate 41. By adjusting the position of the sliders 431, the fixing rod 432 can be inserted into the slider 431, and the sliders 431 can be pulled and fixed to the side of the connecting plate 41 by tightening the tightening member 433.

[0031] Specifically, in this embodiment, the tightening element 433 is a bolt, and fixing rods 432 are fixedly installed on both sides of the plug-in plate 42. The fixing rods 432 on both sides pass through the slider 431, and the tightening element 433 is a nut that is threadedly connected to the fixing rod 432. The plug-in plate 42 is fixedly installed on the connecting plate 41 by the tightening element 433 pressing against the outer side of the slider 431.

[0032] In some embodiments, the slider 431 described above may be as follows: Figure 3 The structure shown. See also Figure 3 Both ends of the slider 431 are provided with opening slots for mounting the fixing rods 432. When the plug plate 42 is installed on the connecting plate 41, fixing rods 432 are provided on both sides of the connecting plate 41, and the fixing rods 432 are fixedly installed on the plug plate 42. The slider 431 is provided with corresponding opening slots at both ends, so that the connection and fixation between the slider 431 and the fixing plate 1 can be achieved by tightening the two ends of the slider 431, thereby improving the stability of the fixed connection between the slider 431 and the fixing plate 1.

[0033] In some embodiments, the aforementioned retaining ring 3 may be adopted as follows: Figure 2 The structure shown. See also Figure 2 The fixing ring 3 extends outward and is provided with a side plate 311 that connects to the plug-in plate 42. The plug-in plate 42 and the side plate 311 are perpendicular to each other, and the connection between the plug-in plate 42 and the side plate 311 is arranged in a spiral shape. One end of a single semicircular ring 31 on the fixing ring 3 extends outward and is provided with a side plate 311. The side plate 311 and the plug-in plate 42 are integrally bent. The connection section between the side plate 311 and the plug-in plate 42 is arranged in a spiral shape, which can improve the strength of the connection position between the side plate 311 and the plug-in plate 42 after the fixing ring 3 and the plug-in plate 42 are fixed in position.

[0034] In some embodiments, the slider 431 described above may be as follows: Figure 2The structure shown. See also Figure 2 The slider 431 has a groove on its side wall for mounting the connecting plate 41. The connecting plate 41 slides within the groove, improving its stability. Especially when the slider 431 is tightened by the fixing rod 432 and the tightening member 433, the connecting plate 41 remains within the groove, further enhancing the stability of the relative position between the slider 431 and the connecting plate 41. This improves the anti-loosening effect.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A diesel engine fuel inlet pipe support and fixing structure, characterized in that, include: A fixing plate (1) is provided with a mounting hole for installation at the connection between the oil inlet pipe (7) and the hand pump (6), and an opening groove is provided on one side of the mounting hole; Fastening assembly (2), provided on the fixing plate (1), is used to fix the connection between the oil inlet pipe (7) and the hand pump (6) inside the opening groove; A retaining ring (3) is used to fix it to the diesel engine (5); The connecting component (4) is detachably installed between the fixing ring (3) and the fixing plate (1) for connecting and fixing the fixing ring (3) and the fixing plate (1).

2. The diesel fuel pipe support fixing structure according to claim 1, characterized by The fastening assembly (2) includes: The connector (21) is disposed through the side walls of the fixing plate (1) on both sides of the opening groove; Fastener (22) is threaded to the connector (21) and is used to abut against the side wall of the fixing plate (1).

3. The diesel fuel pipe support fixing structure according to claim 2, characterized by Two wing plates (11) are bent on the fixed plate (1), and the two wing plates (11) are respectively located on both sides of the opening groove.

4. The diesel fuel pipe support fixing structure according to claim 1, characterized by The fixing ring (3) includes two semicircular rings (31) and a tightening assembly for tightening the two semicircular rings (31), and the connecting assembly (4) is connected to one of the semicircular rings (31).

5. The diesel fuel pipe support fixing structure according to claim 1, wherein The connection component (4) includes: The connecting plate (41) is detachably mounted on the fixing plate (1) at one end and has a slot at the other end; A plug-in plate (42) is fixedly installed on the fixing ring (3) for insertion into the slot; A fixing component (43) is used to fix the plug plate (42) to the connecting plate (41).

6. The diesel fuel inlet pipe support fixing structure according to claim 5, wherein The fixing component (43) includes: Two sliders (431) are provided, and the two sliders (431) respectively abut against the two sides of the connecting plate (41); A fixing rod (432) is fixedly installed on the plug plate (42) and passes through the slider (431); Tightening element (433): Both ends of the fixing rod (432) are threadedly connected to tightening element (433), which is used to press the slider (431) against the side of the connecting plate (41).

7. The diesel fuel inlet pipe support fixing structure according to claim 6, characterized by Both ends of the slider (431) are provided with openings for mounting the fixing rod (432).

8. The diesel fuel inlet pipe support fixing structure according to claim 6, characterized by The fixing ring (3) extends outward and is provided with a side plate (311) connected to the plug plate (42). The plug plate (42) and the side plate (311) are perpendicular to each other, and the connection between the plug plate (42) and the side plate (311) is arranged in a spiral shape.

9. The diesel fuel inlet pipe support fixing structure according to claim 6, characterized by The slider (431) has a groove on its side wall for mounting the connecting plate (41).

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