Backflow prevention device of ship oil inlet system

Abstract

The utility model discloses an anti-backflow device of a ship oil inlet system, and relates to the technical field of ship oil inlet devices. The oil pump comprises an oil storage tank, an oil storage cavity, an oil outlet pipe and a pump body, and a guide mechanism, a moving seat and a blocking ball. According to the utility model, the diversion mechanism is arranged; the amount of oil in the oil storage cavity is increased, then the moving seat is pushed to move upwards, one end of the oil outlet pipe is opened while the moving seat moves, the blocking ball is driven to rotate through mechanical transmission, and at the moment, the oil in the oil storage cavity can be guided out through the oil outlet pipe; the moving seat resets and moves to drive the blocking ball to rotate in a reset mode through mechanical transmission, at the moment, the oil body guided into the oil outlet pipe cannot flow back into the oil storage tank, and compared with a traditional oil supply mode, the double-backflow-prevention mode improves the backflow prevention effect after the oil body is guided out; and the backflow prevention effect of the oil body is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ship oil inlet devices, in particular to a backflow prevention device for a ship oil inlet system. Background Art

[0002] Marine oil is the most commonly used marine fuel, mainly including light diesel, heavy diesel, fuel oil, residual fuel oil, including: 0# diesel, -10# diesel, 20# heavy diesel, 4# fuel oil, 120# fuel oil, 180# fuel oil, 380# fuel oil. According to the different tonnage of the ship (the size and type of the engine used), different ships require different ship fuels. The current oil supply method for ships mostly adopts pump transportation, which transports the oil to the required mechanical equipment through the pump.

[0003] At present, during the transportation process, ship oil is transported to mechanical equipment through a pump body. A valve body is provided in the connecting pipe between the mechanical equipment and the pump body. The pump body and the mechanical equipment are connected and closed by opening and closing the valve body. However, after the valve body has been working for a period of time, the valve body is frequently in contact with the inner wall of the pipeline, which causes the valve body to wear, thereby causing a gap between the connecting pipe and the valve body, causing the oil entering the mechanical equipment to flow back into the pump body through the valve body, affecting the normal operation of the pump body. Therefore, a backflow prevention device for a ship oil inlet system is provided. Utility Model Content

[0004] The utility model aims to provide a backflow prevention device for a ship oil inlet system, so as to solve the problem in the background technology mentioned above that the valve body is frequently in contact with the inner wall of the pipeline, causing the valve body to wear, thereby causing the oil introduced into the mechanical equipment to flow back into the pump body.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a backflow prevention device for a ship's oil inlet system, comprising an oil storage tank, an oil storage cavity is provided inside the oil storage tank, an oil outlet pipe is fixed to one end of the oil storage tank by bolts, a pump body is provided at one end of the oil storage tank away from the oil outlet pipe, and the pump body is connected to the oil storage tank through a connecting pipe; a flow guiding mechanism, the flow guiding mechanism is provided at the top end of the oil storage tank, and the flow guiding mechanism extends to the inside of the oil storage tank and the oil outlet pipe, the flow guiding mechanism includes a movable seat provided inside the oil storage tank, and a blocking ball is provided inside the oil outlet pipe.

[0006] By adopting the above technical solution, the guide mechanism is used to guide the oil in the oil storage chamber into the oil outlet pipe, and prevent the oil entering the oil outlet pipe from flowing back into the oil storage chamber, the movable seat is used to block one end of the oil outlet pipe, and the blocking ball is used to block the inner wall of the oil outlet pipe.

[0007] Preferably, the flow guide mechanism also includes a rack fixed to the top of the moving seat by bolts, a spur gear is meshed on one side of the rack, a rotating rod is welded to one end of the spur gear, the outer wall of the rotating rod is connected to a support seat through a bearing, the top of the support seat is fixedly connected to the inner wall of the oil storage tank, the end of the rotating rod away from the spur gear is welded to the first bevel gear, the inner wall of the moving seat is sleeved with a limiting column, the top and bottom ends of the limiting column are fixedly connected to the inner wall of the oil storage tank by bolts, a spring is fixed to the top of the moving seat, and the top of the spring is fixedly connected to the inner wall of the oil storage tank.

[0008] By adopting the above technical solution, the limit column is used to limit the moving seat, thereby ensuring the stability of the vertical movement of the moving seat, and the spring is used to provide the moving seat with a vertical movement reset force and maintain the initial state of the moving seat. The upward movement of the moving seat can drive the rotating rod to rotate through mechanical transmission, and the rotation of the rotating rod can drive the first bevel gear to rotate.

[0009] Preferably, one end of the first bevel gear is meshed with a second bevel gear, a rotating column is welded to the top of the second bevel gear, the rotating column penetrates to the top of the oil storage tank, and the rotating column is rotatably connected to the inner wall of the oil storage tank through a bearing.

[0010] By adopting the above technical solution, the rotation of the first bevel gear can drive the second bevel gear to rotate, and the rotation of the second bevel gear can drive the rotating column to rotate.

[0011] Preferably, a first synchronous wheel is fixed to the top of the rotating column, a synchronous belt is meshed on the outer wall of the first synchronous wheel, a second synchronous wheel is meshed on the inner wall of the synchronous belt, and the second synchronous wheel is located at one side of the first synchronous wheel.

[0012] By adopting the above technical solution, the rotation of the rotating column drives the first synchronous wheel to rotate, the rotation of the first synchronous wheel drives the synchronous belt to rotate, and the rotation of the synchronous belt drives the second synchronous wheel to rotate.

[0013] Preferably, a connecting column is fixed to the bottom end of the first synchronous wheel, the connecting column penetrates into the interior of the oil outlet pipe, and the bottom end of the connecting column is welded to the outer wall of the blocking ball, and the connecting column is sealingly rotatably connected to the inner wall of the oil outlet pipe through a bearing.

[0014] By adopting the above technical solution, the rotation of the first synchronous wheel drives the connecting column to rotate, and the rotation of the connecting column drives the blocking ball to rotate, thereby facilitating the unobstructed inner wall of the oil outlet pipe.

[0015] Preferably, the outer wall of the connecting column is connected to the limiting seat via a bearing, and one end of the limiting seat is fixedly connected to the outer wall of the oil storage tank via a bolt.

[0016] By adopting the above technical solution, the limit seat is used to support the connecting column, and the limit seat is used to ensure the stability of the connecting column during the transmission of the rotational force.

[0017] Preferably, a through groove is formed on the inner wall of the blocking ball, and the outer wall of the blocking ball is tightly fitted with the inner wall of the oil outlet pipe.

[0018] By adopting the above technical solution, the rotation of the blocking ball drives the through slot to rotate, and after the through slot rotates 90 degrees, one end of the oil outlet pipe can be opened, thereby allowing the oil to be discharged through the oil outlet pipe.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] By setting a flow diversion mechanism; the amount of oil in the oil storage chamber increases, which in turn pushes the moving seat to move upward, and the moving seat moves and opens one end of the oil outlet pipe, and drives the blocking ball to rotate through mechanical transmission. At this time, the oil in the oil storage chamber can be discharged through the oil outlet pipe. After the oil supply of the device is completed, the moving seat resets and drives the blocking ball to reset and rotate through mechanical transmission. At this time, the oil introduced into the oil outlet pipe will not flow back to the oil storage tank. Compared with the traditional oil supply method, the double backflow prevention method is used to improve the effect of anti-backflow after the oil is discharged. At the same time, by setting the oil outlet pipe to a "Z" shape, the anti-backflow effect of the oil is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 For the utility model Figure 1 A is an enlarged structural diagram;

[0023] Figure 3 This is a schematic diagram of the internal structure of the oil storage tank and the oil outlet pipe of the utility model;

[0024] Figure 4 For the utility model Figure 3 The enlarged structural diagram at B in FIG.

[0025] Figure 5 For the utility model Figure 3 The enlarged structural diagram at C in the figure.

[0026] In the figure: 1, oil storage tank; 101, oil storage chamber; 2, oil outlet pipe; 3, pump body; 4, flow guide mechanism; 401, moving seat; 4011, limiting column; 4012, spring; 402, rack; 403, spur gear; 404, rotating rod; 4041, supporting seat; 405, first bevel gear; 406, second bevel gear; 407, rotating column; 408, first synchronous wheel; 4081, synchronous belt; 4082, second synchronous wheel; 409, connecting column; 4091, limiting seat; 410, blocking ball; 4101, through groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The following is combined with Figure 1-Figure 5 The utility model is described in further detail.

[0029] See also Figure 1-Figure 5 The utility model provides an anti-backflow device embodiment of a ship oil inlet system: an anti-backflow device of a ship oil inlet system, comprising an oil storage tank 1, an oil storage chamber 101 is provided inside the oil storage tank 1, the oil storage chamber 101 is used to store oil, an oil outlet pipe 2 is fixed to one end of the oil storage tank 1 by bolts, the oil outlet pipe 2 is used to guide the oil stored in the oil storage chamber 101, a pump body 3 is provided at one end of the oil storage tank 1 away from the oil outlet pipe 2, the pump body 3 is connected to the oil storage tank 1 through a connecting pipe, and the pump body 3 is used to transport the oil to the oil storage chamber 101; guide pipe Mechanism 4, the flow guiding mechanism 4 is arranged at the top of the oil storage tank 1, and the flow guiding mechanism 4 extends to the inside of the oil storage tank 1 and the oil outlet pipe 2, the flow guiding mechanism 4 is used to guide the oil in the oil storage chamber 101 into the oil outlet pipe 2, and prevent the oil entering the oil outlet pipe 2 from flowing back into the oil storage chamber 101, the flow guiding mechanism 4 includes a movable seat 401 arranged inside the oil storage tank 1, and a blocking ball 410 is arranged inside the oil outlet pipe 2, the movable seat 401 is used to block one end of the oil outlet pipe 2, and the blocking ball 410 is used to block the inner wall of the oil outlet pipe 2.

[0030] It can be further explained that the amount of oil in the oil storage chamber 101 increases, which in turn pushes the movable seat 401 to move upward. The movable seat 401 moves and opens one end of the oil outlet pipe 2 at the same time, and drives the blocking ball 410 to rotate through mechanical transmission. At this time, the oil in the oil storage chamber 101 can be discharged through the oil outlet pipe 2. After the oil supply of the device is completed, the movable seat 401 resets and drives the blocking ball 410 to reset and rotate through mechanical transmission. At this time, the oil introduced into the oil outlet pipe 2 will not flow back into the oil storage tank 1. Compared with the traditional oil supply method, the double anti-backflow method is used to improve the anti-backflow effect after the oil is discharged. At the same time, by setting the oil outlet pipe 2 to a "Z" shape, the anti-backflow effect of the oil is further improved.

[0031] See also Figure 3 and Figure 4 The flow guide mechanism 4 also includes a rack 402 fixed to the top of the moving seat 401 by bolts, one side of the rack 402 is meshed with a spur gear 403, one end of the spur gear 403 is welded with a rotating rod 404, the outer wall of the rotating rod 404 is connected to a support seat 4041 through a bearing, the top of the support seat 4041 is fixedly connected to the inner wall of the oil storage tank 1, the end of the rotating rod 404 away from the spur gear 403 is welded with a first bevel gear 405, the inner wall of the moving seat 401 is sleeved with a limiting column 4011, the top and bottom of the limiting column 4011 are connected to the storage tank 1 by bolts. The inner wall of the oil tank 1 is fixedly connected, and a spring 4012 is fixed on the top of the movable seat 401. The top of the spring 4012 is fixedly connected to the inner wall of the oil tank 1. The limiting column 4011 is used to limit the movable seat 401, thereby ensuring the stability of the vertical movement of the movable seat 401. The spring 4012 is used to provide a vertical movement reset force to the movable seat 401 and maintain the initial state of the movable seat 401. The upward movement of the movable seat 401 can drive the rotating rod 404 to rotate through mechanical transmission, and the rotation of the rotating rod 404 can drive the first bevel gear 405 to rotate.

[0032] It can be further explained that the oil is introduced into the oil storage chamber 101 inside the oil storage tank 1 through the pump body 3, and the oil is accumulated in the oil storage chamber 101. When the top of the oil contacts the bottom of the movable seat 401, the increase in the amount of oil will push the movable seat 401 to move upward, and the spring 4012 is squeezed by force. The movement of the movable seat 401 drives the rack 402 to move, and the movable seat 401 moves and opens one end of the oil outlet pipe 2. At this time, the oil in the oil storage chamber 101 can be introduced into the interior of the oil outlet pipe 2.

[0033] See also Figure 2 and Figure 4, one end of the first bevel gear 405 is meshed with the second bevel gear 406, and a rotating column 407 is welded to the top of the second bevel gear 406. The rotating column 407 penetrates to the top of the oil storage tank 1, and the rotating column 407 is rotatably connected to the inner wall of the oil storage tank 1 through a bearing. The rotation of the first bevel gear 405 can drive the second bevel gear 406 to rotate, and the rotation of the second bevel gear 406 drives the rotating column 407 to rotate; a first synchronous wheel 408 is fixed to the top of the rotating column 407, and a synchronous belt 4081 is meshed with the outer wall of the first synchronous wheel 408, and a second synchronous wheel 4082 is meshed with the inner wall of the synchronous belt 4081, and the second synchronous wheel 4082 is located on one side of the first synchronous wheel 408. The rotation of the rotating column 407 drives the first synchronous wheel 408 to rotate, and the rotation of the first synchronous wheel 408 drives the synchronous belt 4081 to rotate, and the rotation of the synchronous belt 4081 drives the second synchronous wheel 4082 to rotate.

[0034] It can be further explained that the upward movement of the rack 402 can drive the spur gear 403 to rotate, the rotation of the spur gear 403 drives the rotating rod 404 to rotate, the rotation of the rotating rod 404 drives the first bevel gear 405 to rotate, the rotation of the first bevel gear 405 drives the second bevel gear 406 to rotate, the rotation of the second bevel gear 406 drives the rotating column 407 to rotate, the rotation of the rotating column 407 drives the first synchronous wheel 408 to rotate, the rotation of the first synchronous wheel 408 drives the synchronous belt 4081 to rotate, and the rotation of the synchronous belt 4081 drives the second synchronous wheel 4082 to rotate.

[0035] See also Figure 2 and Figure 5 A connecting column 409 is fixed to the bottom end of the first synchronous wheel 408. The connecting column 409 penetrates the inside of the oil outlet pipe 2, and the bottom end of the connecting column 409 is welded to the outer wall of the blocking ball 410. The connecting column 409 is connected to the inner wall of the oil outlet pipe 2 through a bearing. The first synchronous wheel 408 rotates to drive the connecting column 409 to rotate, and the connecting column 409 rotates to drive the blocking ball 410 to rotate, thereby facilitating the unobstructed inner wall of the oil outlet pipe 2; the outer wall of the connecting column 409 is connected to the limit seat 4091 through a bearing, and the limit seat One end of 4091 is fixedly connected to the outer wall of the oil storage tank 1 by bolts, and the limit seat 4091 is used to support the connecting column 409, and the limit seat 4091 is used to ensure the stability of the connecting column 409 during the transmission of rotational force; a through groove 4101 is provided on the inner wall of the blocking ball 410, and the outer wall of the blocking ball 410 is tightly fitted with the inner wall of the oil outlet pipe 2. The rotation of the blocking ball 410 drives the through groove 4101 to rotate. After the through groove 4101 rotates ninety degrees, one end of the oil outlet pipe 2 can be opened, thereby allowing the oil to be discharged through the oil outlet pipe 2.

[0036] It can be further explained that the rotation of the second synchronous wheel 4082 drives the connecting column 409 to rotate, the rotation of the connecting column 409 drives the blocking ball 410 to rotate, and the rotation of the blocking ball 410 drives the through groove 4101 to rotate. When the oil enters the oil outlet pipe 2, the through groove 4101 rotates ninety degrees. At this time, the two ends of the blocking ball 410 are connected, and the oil passes through the through groove 4101 and is discharged from the oil outlet pipe 2.

[0037] Working principle: When the device is used, first, the oil is introduced into the oil storage chamber 101 inside the oil storage tank 1 through the pump body 3, and the oil is accumulated in the oil storage chamber 101. When the top of the oil contacts the bottom of the movable seat 401, the increase in the amount of oil will push the movable seat 401 to move upward, and the spring 4012 is squeezed by force, and the movable seat 401 moves to drive the rack 402 to move, and the movable seat 401 moves to open one end of the oil outlet pipe 2. At this time, the oil in the oil storage chamber 101 can be introduced into the interior of the oil outlet pipe 2;

[0038] Secondly, the rack 402 moves upward to drive the spur gear 403 to rotate, and the rotation of the spur gear 403 drives the rotating rod 404 to rotate, and the rotation of the rotating rod 404 drives the first bevel gear 405 to rotate, and the rotation of the first bevel gear 405 drives the second bevel gear 406 to rotate, and the rotation of the second bevel gear 406 drives the rotating column 407 to rotate, and the rotation of the rotating column 407 drives the first synchronous wheel 408 to rotate, and the rotation of the first synchronous wheel 408 drives the synchronous belt 4081 to rotate, and the rotation of the synchronous belt 4081 drives the second synchronous wheel 4082 to rotate, and the rotation of the second synchronous wheel 4082 drives the connecting column 409 to rotate, and the rotation of the connecting column 409 drives the blocking ball 410 to rotate, and the rotation of the blocking ball 410 drives the through groove 4101 to rotate, and when the oil enters the inside of the oil outlet pipe 2, the through groove 4101 rotates ninety degrees, and at this time, the two ends of the blocking ball 410 are connected, and the oil passes through the through groove 4101 and is discharged from the oil outlet pipe 2;

[0039] Afterwards, after the oil supply procedure of the device is completed, the oil in the oil storage chamber 101 is separated from the bottom end of the movable seat 401, the spring 4012 returns to its original state and drives the movable seat 401 to reset and move, the movable seat 401 resets and moves and blocks one end of the oil outlet pipe 2, and the movable seat 401 resets and moves and drives the blocking ball 410 to reset and rotate through mechanical transmission at the same time, at this time, the two ends of the blocking ball 410 are separated, and the oil in the oil storage tank 1 cannot enter the oil outlet pipe 2;

[0040] Finally, the amount of oil in the oil storage chamber 101 increases, which in turn pushes the movable seat 401 to move upward. The movable seat 401 moves and opens one end of the oil outlet pipe 2 at the same time, and drives the blocking ball 410 to rotate through mechanical transmission. At this time, the oil in the oil storage chamber 101 can be discharged through the oil outlet pipe 2. After the oil supply of the device is completed, the movable seat 401 resets and drives the blocking ball 410 to reset and rotate through mechanical transmission. At this time, the oil introduced into the oil outlet pipe 2 will not flow back into the oil storage tank 1. Compared with the traditional oil supply method, the double anti-backflow method is used to improve the anti-backflow effect after the oil is discharged. At the same time, by setting the oil outlet pipe 2 to a "Z" shape, the anti-backflow effect of the oil is further improved.

[0041] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A backflow prevention device for a ship's oil inlet system, characterized in that: include: An oil storage tank (1), wherein an oil storage chamber (101) is provided inside the oil storage tank (1), an oil outlet pipe (2) is fixed to one end of the oil storage tank (1) by means of bolts, a pump body (3) is provided at one end of the oil storage tank (1) away from the oil outlet pipe (2), and the pump body (3) is connected to the oil storage tank (1) by means of a connecting pipe; A flow guiding mechanism (4), wherein the flow guiding mechanism (4) is arranged at the top end of the oil storage tank (1), and the flow guiding mechanism (4) extends to the inside of the oil storage tank (1) and the oil outlet pipe (2), and the flow guiding mechanism (4) comprises a movable seat (401) arranged inside the oil storage tank (1), and a blocking ball (410) is arranged inside the oil outlet pipe (2).

2. The backflow prevention device of a ship fuel inlet system according to claim 1, characterized in that: The flow guide mechanism (4) further comprises a rack (402) fixed to the top of the movable seat (401) by means of bolts; a spur gear (403) is meshed on one side of the rack (402); a rotating rod (404) is welded to one end of the spur gear (403); an outer wall of the rotating rod (404) is connected to a support seat (4041) via a bearing; a top end of the support seat (4041) is fixedly connected to an inner wall of the oil storage tank (1); a first bevel gear (405) is welded to one end of the rotating rod (404) away from the spur gear (403); a limiting column (4011) is sleeved on the inner wall of the movable seat (401); a top end and a bottom end of the limiting column (4011) are fixedly connected to the inner wall of the oil storage tank (1) by means of bolts; a spring (4012) is fixed to the top of the movable seat (401); a top end of the spring (4012) is fixedly connected to the inner wall of the oil storage tank (1).

3. The backflow prevention device of a ship fuel inlet system according to claim 2, characterized in that: One end of the first bevel gear (405) is meshed with a second bevel gear (406), a rotating column (407) is welded to the top of the second bevel gear (406), the rotating column (407) penetrates to the top of the oil storage tank (1), and the rotating column (407) is rotatably connected to the inner wall of the oil storage tank (1) via a bearing.

4. The backflow prevention device of a ship oil inlet system according to claim 3, characterized in that: A first synchronous wheel (408) is fixed to the top of the rotating column (407), a synchronous belt (4081) is meshed on the outer wall of the first synchronous wheel (408), a second synchronous wheel (4082) is meshed on the inner wall of the synchronous belt (4081), and the second synchronous wheel (4082) is located on one side of the first synchronous wheel (408).

5. The backflow prevention device of a ship fuel inlet system according to claim 4, characterized in that: A connecting column (409) is fixed to the bottom end of the first synchronous wheel (408), the connecting column (409) penetrates into the interior of the oil outlet pipe (2), and the bottom end of the connecting column (409) is welded to the outer wall of the blocking ball (410), and the connecting column (409) is sealingly rotatably connected to the inner wall of the oil outlet pipe (2) via a bearing.

6. The backflow prevention device of a ship fuel inlet system according to claim 5, characterized in that: The outer wall of the connecting column (409) is connected to the limit seat (4091) via a bearing, and one end of the limit seat (4091) is fixedly connected to the outer wall of the oil storage tank (1) via a bolt.

7. The backflow prevention device of a ship fuel inlet system according to claim 1, characterized in that: The inner wall of the blocking ball (410) is provided with a through groove (4101), and the outer wall of the blocking ball (410) is tightly fitted with the inner wall of the oil outlet pipe (2).

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