High-pressure oil pipe for diesel engine

Abstract

The utility model provides a high-pressure oil pipe for a diesel engine, which relates to the technical field of high-pressure oil pipes and comprises an oil pipe body, two ends of the oil pipe body are fixedly connected with connecting pipes, one side, far away from the oil pipe body, of each connecting pipe is fixedly connected with a sealing ring, and two ends of the oil pipe body are sleeved with nuts. A limiting device is arranged on the surface of the nut, the limiting device comprises two U-shaped plates which are symmetrical to each other, the two U-shaped plates are fixedly connected with the nut, two arms of the U-shaped plates are rotationally connected with the same rotating rod, and the arc surface of the rotating rod is fixedly connected with a control plate; two symmetrical fixing rings are fixedly connected to the arc surface of the oil pipe body, the effect that a worker can conveniently fix a nut is achieved through the limiting device, and the situation that the nut is loosened due to the fact that vibration generated in the working process of a diesel engine drives the nut to rotate is avoided as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure oil pipes, in particular to an oil pipe. Background Art

[0002] With the continuous upgrading of automobile engines, diesel engines are also constantly upgraded. The pressure of the fuel system of diesel engines is usually very high when working, so the sealing between the various oil pipes in the fuel supply pipeline is very important. The high-pressure oil pipe is one of the parts of the fuel supply system, so poor sealing will cause oil leakage and other problems.

[0003] In the prior art, when the high-pressure oil pipe is in use, it is necessary to use a nut to fix the oil pipe. However, when the diesel engine is working, the diesel engine will inevitably vibrate, and the nut is easy to loosen, causing the oil pipe to fall off, reducing the practicality of the oil pipe. Utility Model Content

[0004] The utility model is to solve the shortcomings in the prior art and provides a high-pressure oil pipe for a diesel engine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-pressure oil pipe for a diesel engine, comprising an oil pipe body, two ends of the oil pipe body are fixedly connected with connecting pipes, a side of the connecting pipe away from the oil pipe body is fixedly connected with a sealing ring, two ends of the oil pipe body are sleeved with nuts, and the surface of the nuts is provided with a limiting device, the limiting device comprises two mutually symmetrical U-shaped plates, the two U-shaped plates are fixedly connected with the nuts, the two arms of the U-shaped plates are rotatably connected with the same rotating rod, the arc surface of the rotating rod is fixedly connected with a control plate, the arc surface of the oil pipe body is fixedly connected with two mutually symmetrical fixing rings, the arc surface of the fixing ring is evenly opened with a plurality of slots, the size of the slots is adapted to the size of the control plate, the arc surface of the rotating rod is sleeved with two mutually symmetrical coil springs, the two ends of the coil spring are respectively fixedly connected with the U-shaped plate and the control plate, and the coil spring is in a relaxed state when the control plate is inserted into the slot.

[0006] The effect achieved by the above components is: when it is necessary to fix the oil pipe body, first move the oil pipe body to the required connection position, and the connecting pipe is fitted to the connecting object with the help of the sealing ring. At this time, move the control board, the control board rotates with the rotating rod, and the coil spring is deformed. After moving the control board to the appropriate position, rotate the nut through the control board, and after connecting the connecting pipe and the connecting object through the nut, loosen the control board, and under the action of the coil spring reset elastic force, the control board is inserted into the groove of the fixing ring, thereby achieving the effect of fixing the nut. The limit device is used to facilitate the staff to fix the nut, and it is avoided as much as possible that the vibration generated during the operation of the diesel engine causes the nut to rotate, thereby causing the nut to loosen.

[0007] Preferably, a plurality of anti-slip strips are fixedly connected to the surface of the control panel, and the plurality of anti-slip strips are linearly distributed.

[0008] The effect achieved by the above components is: by arranging the anti-slip strips, the friction between the surface of the control panel and the hands of the staff is increased, which makes it easier for the staff to rotate the control panel and brings convenience to the staff.

[0009] Preferably, a baffle is fixedly connected to one side of the U-shaped plate, and the cross-section of the baffle is "L"-shaped.

[0010] The effect achieved by the above components is: by setting the baffle, the maximum displacement of the control board is limited.

[0011] Preferably, the fixing ring is provided with two mutually symmetrical slopes by means of the slot, and the two slopes are inclined toward the inside of the slot.

[0012] The effect achieved by the above components is: by setting the slope, the control board is conveniently entered into the interior of the card slot, which brings convenience to the staff.

[0013] Preferably, an auxiliary device is provided on a side of the fixing ring away from the nut, and the auxiliary device includes a positioning member, and the positioning member is slidably connected to a limiting member at a position corresponding to the slot, and the cross-section of the limiting member is "U"-shaped.

[0014] The effect achieved by the above components is: after the control board is moved into the slot, the limit piece is moved, and the "U"-shaped limit piece clamps the control board, thereby achieving the effect of fixing the control board. The control block is fixed through the auxiliary device, thereby preventing the control block from moving out of the slot.

[0015] Preferably, two arms of the limiting member are fixedly connected with a sliding block, and a sliding groove is provided at a position of the positioning member corresponding to the sliding block, and the size of the sliding groove is adapted to the size of the sliding block.

[0016] The effect achieved by the above components is: by moving the slider of the limiting member in the slide groove of the positioning member, the moving direction of the limiting member is limited, the rotation of the limiting member is avoided, and the stability of the movement of the limiting member is improved.

[0017] Preferably, a handle is fixedly connected to the upper surface of the limiting member, and the surface of the handle is provided with anti-slip grooves.

[0018] The effect achieved by the above components is: by providing the handle, it is convenient for the staff to move the limiter, which brings convenience to the staff.

[0019] In summary, the beneficial effects of the utility model are:

[0020] When it is necessary to fix the oil pipe body, first move the oil pipe body to the required connection position, and the connecting pipe is fitted to the connecting object with the help of the sealing ring. At this time, move the control board, the control board rotates with the rotating rod, and the coil spring is deformed. After moving the control board to the appropriate position, the nut is rotated through the control board. After the connecting pipe and the connecting object are connected through the nut, the control board is loosened. Under the action of the resetting elastic force of the coil spring, the control board is inserted into the groove of the fixing ring, thereby achieving the effect of fixing the nut. The limit device is used to facilitate the staff to fix the nut, and the vibration generated during the operation of the diesel engine is avoided as much as possible, causing the nut to rotate, thereby causing the nut to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the limiting device of the utility model;

[0023] Figure 3 For this utility model Figure 2 A magnified image of point A;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the auxiliary device of the utility model;

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the limiting member of the utility model.

[0026] Legend: 1. Oil pipe body; 2. Connecting pipe; 3. Nut; 4. Limiting device; 41. U-shaped plate; 42. Rotating rod; 43. Control board; 44. Fixing ring; 45. Slot; 46. Coil spring; 47. Baffle; 48. Anti-slip strip; 49. Slope; 5. Auxiliary device; 51. Positioning piece; 52. Limiting piece; 53. Handle; 54. Sliding block; 55. Slide groove. DETAILED DESCRIPTION

[0027] Reference Figure 1-5 As shown, this embodiment discloses a high-pressure oil pipe for a diesel engine, including an oil pipe body 1, connecting pipes 2 are fixedly connected to both ends of the oil pipe body 1, a sealing ring is fixedly connected to the side of the connecting pipe 2 away from the oil pipe body 1, nuts 3 are sleeved on both ends of the oil pipe body 1, and a limiting device 4 is provided on the surface of the nut 3.

[0028] Reference Figure 1-5As shown, the limiting device 4 includes two mutually symmetrical U-shaped plates 41, and the two U-shaped plates 41 are fixedly connected to the nut 3. The two arms of the U-shaped plate 41 are rotatably connected to the same rotating rod 42, and the arc surface of the rotating rod 42 is fixedly connected to the control plate 43. The arc surface of the oil pipe body 1 is fixedly connected to two mutually symmetrical fixing rings 44, and the arc surface of the fixing ring 44 is evenly provided with a plurality of slots 45. The size of the slots 45 is adapted to the size of the control plate 43. The arc surface of the rotating rod 42 is sleeved with two mutually symmetrical coil springs 46, and the two ends of the coil spring 46 are respectively fixedly connected to the U-shaped plate 41 and the control plate 43, and the coil spring 46 is in a relaxed state when the control plate 43 is inserted into the slot 45. When it is necessary to fix the oil pipe body 1, first move the oil pipe body 1 to the required connection position, and the connecting pipe 2 is fitted to the connecting object with the help of the sealing ring. At this time, move the control board 43, and the control board 43 rotates with the rotating rod 42, and the coil spring 46 is deformed. After moving the control board 43 to the appropriate position, the nut 3 is rotated through the control board 43. After the connecting pipe 2 and the connecting object are connected through the nut 3, the control board 43 is loosened. Under the action of the reset elastic force of the coil spring 46, the control board 43 is inserted into the slot 45 of the fixing ring 44, so as to achieve the effect of fixing the nut 3. The limit device 4 is used to facilitate the staff to fix the nut 3, and to avoid the vibration caused by the nut 3 rotating during the operation of the diesel engine, thereby causing the nut 3 to loosen.

[0029] Reference Figure 1-5 As shown, the surface of the control panel 43 is fixedly connected with a plurality of anti-slip strips 48, and the plurality of anti-slip strips 48 are linearly distributed. By providing the anti-slip strips 48, the friction between the surface of the control panel 43 and the hands of the staff is increased, so that it is convenient for the staff to rotate the control panel 43, which brings convenience to the staff. A baffle 47 is fixedly connected to one side of the U-shaped plate 41, and the cross-section of the baffle 47 is "L"-shaped. By providing the baffle 47, the effect of limiting the maximum displacement of the control panel 43 is achieved. The fixing ring 44 is provided with two mutually symmetrical slopes 49 by means of the slot 45, and the two slopes 49 are inclined toward the inside of the slot 45. By providing the slope 49, it is convenient for the control panel 43 to enter the inside of the slot 45, which brings convenience to the staff.

[0030] Reference Figure 1-5 As shown, an auxiliary device 5 is provided on the side of the fixing ring 44 away from the nut 3, and the auxiliary device 5 includes a positioning member 51, and the positioning member 51 is slidably connected to a limiting member 52 corresponding to the slot 45, and the cross section of the limiting member 52 is "U"-shaped. After the control board 43 is moved into the slot 45, the limiting member 52 is moved, and the "U"-shaped limiting member 52 clamps the control board 43, achieving the effect of fixing the control board 43. The auxiliary device 5 achieves the effect of fixing the control block, and prevents the control block from moving out of the slot 45.

[0031] Reference Figure 1-5 As shown, the two arms of the limiter 52 are fixedly connected with a slider 54, and the positioning member 51 is provided with a slide groove 55 corresponding to the slider 54, and the size of the slide groove 55 is adapted to the size of the slider 54. By moving the slider 54 of the limiter 52 in the slide groove 55 of the positioning member 51, the effect of limiting the moving direction of the limiter 52 is achieved, the limiter 52 is prevented from rotating, and the stability of the movement of the limiter 52 is improved. The upper surface of the limiter 52 is fixedly connected with a handle 53, and the surface of the handle 53 is provided with anti-slip grooves. By setting the handle 53, the effect of facilitating the staff to move the limiter 52 is achieved, which brings convenience to the staff.

[0032] Working principle: when it is necessary to fix the oil pipe body 1, first move the oil pipe body 1 to the required connection position, and the connecting pipe 2 is fitted to the connecting object with the help of the sealing ring. At this time, move the control plate 43, and the control plate 43 rotates with the rotating rod 42, and the coil spring 46 is deformed, and the control plate 43 is moved to the position of the baffle 47, and then the nut 3 is rotated through the control plate 43. After the connecting pipe 2 and the connecting object are connected through the nut 3, the control plate 43 is loosened. Under the action of the reset elastic force of the coil spring 46, the control plate 43 is inserted into the groove 45 of the fixing ring 44 with the help of the slope 49, so as to achieve the effect of fixing the nut 3. The limit device 4 is used to facilitate the staff to fix the nut 3, and to avoid the vibration generated during the operation of the diesel engine causing the nut 3 to rotate, thereby causing the nut 3 to loosen.

[0033] After the control board 43 is moved into the slot 45 , the limit piece 52 is moved by the handle 53 , and the “U”-shaped limit piece 52 clamps the control board 43 , thereby achieving the effect of fixing the control board 43 . The auxiliary device 5 is used to fix the control block, thereby preventing the control block from being moved out of the slot 45 .

Claims

1. A high-pressure oil pipe for a diesel engine, comprising an oil pipe body (1), characterized in that: The two ends of the oil pipe body (1) are fixedly connected to connecting pipes (2), and a sealing ring is fixedly connected to the side of the connecting pipe (2) away from the oil pipe body (1). Nuts (3) are sleeved on the two ends of the oil pipe body (1), and a limiting device (4) is provided on the surface of the nut (3). The limiting device (4) comprises two mutually symmetrical U-shaped plates (41), and the two U-shaped plates (41) are fixedly connected to the nuts (3). The two arms of the U-shaped plates (41) are rotatably connected to the same rotating rod (42), and the arc surface of the rotating rod (42) is fixedly connected to a control The control plate (43) is provided with a control plate (43). The arc surface of the oil pipe body (1) is fixedly connected with two mutually symmetrical fixing rings (44). The arc surface of the fixing ring (44) is evenly provided with a plurality of clamping grooves (45). The size of the clamping grooves (45) matches the size of the control plate (43). The arc surface of the rotating rod (42) is sleeved with two mutually symmetrical coil springs (46). The two ends of the coil spring (46) are respectively fixedly connected with the U-shaped plate (41) and the control plate (43). The coil spring (46) is in a relaxed state when the control plate (43) is inserted into the clamping groove (45).

2. A high-pressure oil pipe for a diesel engine according to claim 1, characterized in that: A plurality of anti-slip strips (48) are fixedly connected to the surface of the control panel (43), and the plurality of anti-slip strips (48) are distributed linearly.

3. A high-pressure oil pipe for a diesel engine according to claim 1, characterized in that: A baffle plate (47) is fixedly connected to one side of the U-shaped plate (41); the cross section of the baffle plate (47) is in an "L" shape.

4. A high-pressure oil pipe for a diesel engine according to claim 1, characterized in that: The fixing ring (44) is provided with two mutually symmetrical slopes (49) by means of the clamping groove (45), and the two slopes (49) are inclined toward the inside of the clamping groove (45).

5. The high-pressure oil pipe for a diesel engine according to claim 1, characterized in that: An auxiliary device (5) is provided on a side of the fixing ring (44) away from the nut (3), the auxiliary device (5) comprising a positioning member (51), the positioning member (51) being slidably connected to a limiting member (52) at a position corresponding to the slot (45), the limiting member (52) having a "U"-shaped cross section.

6. A high-pressure oil pipe for a diesel engine according to claim 5, characterized in that: The two arms of the limiting member (52) are fixedly connected to a slider (54), and a slide groove (55) is provided on the positioning member (51) at a position corresponding to the slider (54), and the size of the slide groove (55) is adapted to the size of the slider (54).

7. A high-pressure oil pipe for a diesel engine according to claim 5, characterized in that: A handle (53) is fixedly connected to the upper surface of the limiting member (52), and the surface of the handle (53) is provided with anti-slip grooves.

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