Breaking valve for oiling machine

Abstract

The utility model belongs to the technical field of breakaway valves, and particularly relates to a breakaway valve for an oiling machine, which comprises a left valve body and a right valve body. The left valve body and the right valve body are symmetrically arranged; a conical-head-shaped groove is formed in the side wall of the left valve body; a columnar groove is formed in the side wall of the right valve body; the conical-head-shaped groove is communicated with the columnar groove; a blocking ball is arranged in the conical-head-shaped groove; the side wall of the blocking ball is connected with a connecting rod; when the oiling machine normally operates, crude oil flows in from the conical-head-shaped groove and flows out from the columnar groove, when external force is applied, the conical-head-shaped groove and the columnar groove can be separated, meanwhile, the connecting rod can drive the blocking ball to move towards a conical opening of the conical-head-shaped groove, and the blocking ball can block the crude oil from the conical-head-shaped groove. At the moment, the diameter of the blocking ball is larger than that of the conical opening of the conical-head-shaped groove, the conical opening of the conical-head-shaped groove can be clamped when the blocking ball moves towards the conical opening, the situation that crude oil continues to leak is avoided, the convenience and safety of the device are improved, and the probability of crude oil leakage is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of breakaway valves, and specifically relates to a breakaway valve for a fuel dispenser. Background Art

[0002] A breakaway valve for a fuel dispenser generally refers to a valve device specifically designed for the safety system of a fuel dispenser. The fundamental purpose of this valve is to quickly and automatically disconnect the fuel pipe in the event of an accident, such as when the fuel dispenser is accidentally pulled or dragged by a vehicle, thereby preventing fuel leakage and reducing the risks of fire and environmental pollution.

[0003] In the current prior art, for the commonly used breakaway valve for a fuel dispenser, when the breakaway valve is separated by an external force, the valve-type blockage is not thorough, and there is still a small amount of crude oil leaking from the valve gap, causing potential safety hazards, greatly reducing the working efficiency of the breakaway valve, and also reducing the safety of the staff during work.

[0004] Therefore, the utility model provides a breakaway valve for a fuel dispenser. Summary of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: A breakaway valve for a fuel dispenser described in the utility model includes a left valve body and a right valve body; the left valve body and the right valve body are symmetrically arranged; a conical head-shaped groove is provided on the side wall of the left valve body; a columnar groove is provided on the side wall of the right valve body; the conical head-shaped groove and the columnar groove are communicated with each other; a blocking ball is arranged inside the conical head-shaped groove; the blocking ball is arranged at a position close to the columnar groove inside the conical head-shaped groove; a connecting rod is connected to the side wall of the blocking ball; the connecting rod is arranged at the connection of the conical head-shaped groove and the columnar groove, which increases the convenience and safety of the device and greatly reduces the probability of crude oil leakage.

[0007] Preferably, threaded sleeves are fixedly connected to the outer side walls of the left valve body and the right valve body; an inlet pipe is rotatably connected inside the threaded sleeve on the outer side wall of the left valve body; an outlet pipe is rotatably connected inside the threaded sleeve on the outer side wall of the right valve body; the conical head-shaped groove is slidably connected inside the inlet pipe; the columnar groove is slidably connected inside the outlet pipe; ring-shaped baffles are fixedly connected to the outer side walls of the inlet pipe and the outlet pipe, which increases the precision and safety of the device and greatly reduces the probability of crude oil leakage.

[0008] Preferably, four left valve buckles are fixedly connected to the outer side wall of the left valve body; the four left valve buckles are circumferentially arranged on the outer side wall of the left valve body; four right valve buckles are fixedly connected to the outer side wall of the right valve body; the four right valve buckles are circumferentially arranged on the outer side wall of the right valve body; the left valve buckles and the right valve buckles are meshed, and the left valve buckles and the right valve buckles are arranged at the connection position of the left valve body and the right valve body, increasing the stability and precision of the device.

[0009] Preferably, two elastic rods are connected between the inner side wall of the conical head-shaped groove and the blocking ball; the elastic rods are symmetrically arranged inside the conical head-shaped groove, increasing the stability and precision of the device and improving the working efficiency of the device.

[0010] Preferably, a support plate is fixedly connected to the side wall of the connecting rod; the support plate is arranged at a position on the side wall of the connecting rod away from the blocking ball; a plurality of oil passing holes are formed in the side wall of the support plate; the oil passing holes are circumferentially arranged on the side wall of the support plate, increasing the precision and safety of the device and greatly reducing the probability of crude oil leakage.

[0011] Preferably, circular grooves are formed on the outer side walls of the conical head-shaped groove and the columnar groove, and are symmetrically arranged; elastic rings are fixedly connected to the inner side walls of the inlet pipe and the outlet pipe; the circular grooves on the outer side walls of the conical head-shaped groove and the columnar groove correspond to the elastic rings, increasing the precision and safety of the device.

[0012] Preferably, a sealing ring is fixedly connected to the inner side wall where the left valve body and the right valve body are connected; the sealing ring is made of silica gel, increasing the precision and safety of the device.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. For the pull-off valve for a fuel dispenser described in the present utility model, through the cooperative setting of the blocking ball and the connecting rod, when encountering an external force, the connecting rod will drive the blocking ball to move towards the conical opening of the conical head-shaped groove. At this time, since the diameter of the blocking ball is larger than the conical opening of the conical head-shaped groove, it will get stuck at the conical opening when moving towards the conical opening, avoiding the continuous leakage of crude oil, increasing the convenience and safety of the device, and greatly reducing the probability of crude oil leakage.

[0015] 2. For the pull-off valve for a fuel dispenser described in the present utility model, through the setting of the threaded sleeve, the inlet pipe and the outlet pipe can be more tightly connected to the left valve body and the right valve body, reducing the leakage of crude oil during transportation. At the same time, the setting of the circular baffle plays a role in limiting the distance of the inlet pipe and the outlet pipe screwed into the left valve body and the right valve body, reducing the situation that the device fails due to the excessive insertion of the inlet pipe and the outlet pipe into the left valve body and the right valve body, increasing the precision and safety of the device, and greatly reducing the probability of crude oil leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 is a perspective view of the present utility model;

[0018] Figure 2 is a sectional view of the present utility model;

[0019] Figure 3 is a partial structural schematic diagram of the elastic rod in the present utility model;

[0020] Figure 4 is a partial structural schematic diagram of the right valve body in the present utility model.

[0021] In the figure: 11, left valve body; 12, right valve body; 13, conical head groove; 14, cylindrical groove; 15, blocking ball; 16, connecting rod; 21, oil inlet pipe; 22, oil outlet pipe; 23, threaded sleeve; 24, ring-shaped baffle; 31, left valve buckle; 32, right valve buckle; 41, elastic rod; 51, support plate; 52, oil passing hole; 61, elastic ring; 71, sealing ring. Specific embodiments

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0023] Specific embodiments are given below.

[0024] Such as Figures 1 to 4As shown in the figure, a breakaway valve for a fuel dispenser according to an embodiment of the present utility model includes a left valve body 11 and a right valve body 12; the left valve body 11 and the right valve body 12 are symmetrically arranged; a tapered head-shaped groove 13 is formed on the side wall of the left valve body 11; a cylindrical groove 14 is formed on the side wall of the right valve body 12; the tapered head-shaped groove 13 and the cylindrical groove 14 are communicated with each other; a blocking ball 15 is arranged inside the tapered head-shaped groove 13; the blocking ball 15 is arranged at a position close to the cylindrical groove 14 inside the tapered head-shaped groove 13; a connecting rod 16 is connected to the side wall of the blocking ball 15; the connecting rod 16 is arranged at the connection of the tapered head-shaped groove 13 and the cylindrical groove 14; during operation, when the fuel dispenser is operating normally, the crude oil flows in from the tapered head-shaped groove 13 and flows out from the cylindrical groove 14. When encountering an external force, the tapered head-shaped groove 13 and the cylindrical groove 14 will separate, and at the same time, the connecting rod 16 will drive the blocking ball 15 to move towards the tapered opening of the tapered head-shaped groove 13. At this time, since the diameter of the blocking ball 15 is larger than the tapered opening of the tapered head-shaped groove 13, it will block the tapered opening of the tapered head-shaped groove 13 when moving towards the tapered opening, avoiding the continuous leakage of crude oil, increasing the convenience and safety of the device, and greatly reducing the probability of crude oil leakage.

[0025] As Figures 1 to 4 As shown in the figure, threaded sleeves 23 are fixedly connected to the outer side walls of both the left valve body 11 and the right valve body 12; an inlet pipe 21 is rotatably connected inside the threaded sleeve 23 on the outer side wall of the left valve body 11; an outlet pipe 22 is rotatably connected inside the threaded sleeve 23 on the outer side wall of the right valve body 12; the tapered head-shaped groove 13 is slidably connected inside the inlet pipe 21; the cylindrical groove 14 is slidably connected inside the outlet pipe 22; circular baffles 24 are fixedly connected to the outer side walls of both the inlet pipe 21 and the outlet pipe 22; during operation, through the arrangement of the threaded sleeve 23, the inlet pipe 21 and the outlet pipe 22 can be more tightly connected to the left valve body 11 and the right valve body 12, reducing the leakage of crude oil during transportation. At the same time, the arrangement of the circular baffle 24 limits the distance that the inlet pipe 21 and the outlet pipe 22 are screwed into the left valve body 11 and the right valve body 12, reducing the situation where the device fails due to the excessive insertion of the inlet pipe 21 and the outlet pipe 22 into the left valve body 11 and the right valve body 12, increasing the precision and safety of the device, and greatly reducing the probability of crude oil leakage.

[0026] As Figures 1 to 4As shown in the figure, four left valve buckles 31 are fixedly connected to the outer side wall of the left valve body 11; the four left valve buckles 31 are circumferentially arrayed on the outer side wall of the left valve body 11; four right valve buckles 32 are fixedly connected to the outer side wall of the right valve body 12; the four right valve buckles 32 are circumferentially arrayed on the outer side wall of the right valve body 12; the left valve buckles 31 and the right valve buckles 32 are meshed and connected, and the left valve buckles 31 and the right valve buckles 32 are arranged at the connection position of the left valve body 11 and the right valve body 12; during operation, the cooperative setting between the left valve buckles 31 and the right valve buckles 32 can make the left valve body 11 and the right valve body 12 more firmly connected together when transporting crude oil normally, and at the same time, when the external force on the right valve body 12 is increased to a certain extent, it will not affect the separation between the left valve body 11 and the right valve body 12, reducing the situation of device failure and increasing the stability and precision of the device.

[0027] As Figures 1 to 3 shown in the figure, two elastic rods 41 are connected between the inner side wall of the conical head-shaped groove 13 and the blocking ball 15; the elastic rods 41 are symmetrically arranged inside the conical head-shaped groove 13; during operation, when transporting crude oil normally, the elastic rods 41 will pull the blocking ball 15, reducing the situation where the blocking ball 15 blocks the crude oil transportation under normal circumstances. When an external force is applied, the elastic rods 41 and the blocking ball 15 will separate, enabling the device to achieve its effect, increasing the stability and precision of the device, and improving the working efficiency of the device.

[0028] As Figure 2 and Figure 4 shown in the figure, a support plate 51 is fixedly connected to the side wall of the connecting rod 16; the support plate 51 is arranged at a position on the side wall of the connecting rod 16 away from the blocking ball 15; a plurality of oil passing holes 52 are formed in the side wall of the support plate 51; the oil passing holes 52 are circumferentially arrayed on the side wall of the support plate 51; during operation, since the diameter of the connection position between the conical head-shaped groove 13 and the columnar groove 14 is smaller than the diameter of the support plate 51, when the left valve body 11 and the right valve body 12 are separated through the setting of the support plate 51, the right valve body 12 can better drive the support plate 51 and the connecting rod 16 to separate from the blocking ball 15, thereby enabling the device to achieve the purpose of blocking the crude oil transportation. At the same time, the setting of the oil passing holes 52 enables the device to transport crude oil normally, increasing the precision and safety of the device and greatly reducing the probability of crude oil leakage.

[0029] As Figure 2As shown, annular grooves are provided on the outer side walls of the conical head-shaped groove 13 and the columnar groove 14, and they are symmetrically arranged; elastic rings 61 are fixedly connected to the inner side walls of the oil inlet pipe 21 and the oil outlet pipe 22; the annular grooves on the outer side walls of the conical head-shaped groove 13 and the columnar groove 14 are correspondingly arranged with the elastic rings 61; during operation, when the oil inlet pipe 21 and the oil outlet pipe 22 are screwed into the left valve body 11 and the right valve body 12, the conical head-shaped groove 13 and the columnar groove 14 slide inside the oil inlet pipe 21 and the oil outlet pipe 22. At this time, the cooperative setting of the elastic rings 61 and the annular grooves on the outer side walls of the conical head-shaped groove 13 and the columnar groove 14 can make the fixing effect between the oil inlet pipe 21 and the left valve body 11, and the oil outlet pipe 22 and the right valve body 12 better, reducing the leakage of crude oil from the connection between the oil inlet pipe 21 and the oil outlet pipe 22 and the left valve body 11 and the right valve body 12 during crude oil transportation, and increasing the precision and safety of the device.

[0030] As Figure 2 and Figure 4 shown, a sealing ring 71 is fixedly connected to the inner side wall where the left valve body 11 and the right valve body 12 are connected; the sealing ring 71 is made of silica gel; during operation, the setting of the sealing ring 71 can reduce the leakage of crude oil from the connection between the left valve body 11 and the right valve body 12 when crude oil is transported inside the conical head-shaped groove 13 and the columnar groove 14, and increase the precision and safety of the device.

[0031] During operation, when the fuel dispenser is operating normally, crude oil flows into the conical groove 13 and flows out from the cylindrical groove 14. When an external force is applied, the conical groove 13 and the cylindrical groove 14 will separate. At the same time, the connecting rod 16 will drive the blocking ball 15 to move towards the conical opening of the conical groove 13. At this time, since the diameter of the blocking ball 15 is larger than the conical opening of the conical groove 13, it will block the conical opening of the conical groove 13 when moving towards the conical opening, avoiding the continuous leakage of crude oil, increasing the convenience and safety of the device, greatly reducing the probability of crude oil leakage. Through the setting of the threaded sleeve 23, the inlet pipe 21 and the outlet pipe 22 can be more tightly connected to the left valve body 11 and the right valve body 12, reducing the situation of crude oil leakage during transportation. At the same time, the setting of the ring-shaped baffle 24 plays a role in limiting the distance that the inlet pipe 21 and the outlet pipe 22 are screwed into the left valve body 11 and the right valve body 12, reducing the situation where the device fails due to the over-insertion of the inlet pipe 21 and the outlet pipe 22 into the left valve body 11 and the right valve body 12, increasing the precision and safety of the device, and greatly reducing the probability of crude oil leakage. The matching setting between the left valve buckle 31 and the right valve buckle 32 can make the left valve body 11 and the right valve body 12 more firmly connected together during the normal transportation of crude oil. At the same time, when the external force on the right valve body 12 is increased to a certain extent, it will not affect the separation between the left valve body 11 and the right valve body 12, reducing the situation of device failure, increasing the stability and precision of the device. During the normal transportation of crude oil, the elastic rod 41 will pull the blocking ball 15, reducing the situation where the blocking ball 15 blocks the transportation of crude oil under normal circumstances. When an external force is applied, the elastic rod 41 and the blocking ball 15 will separate, enabling the device to function, increasing the stability and precision of the device, and improving the working efficiency of the device. Since the diameter of the communicating position between the conical groove 13 and the cylindrical groove 14 is smaller than the diameter of the support plate 51, through the setting of the support plate 51, when the left valve body 11 and the right valve body 12 are separated, the right valve body 12 can better drive the support plate 51 and the connecting rod 16 to disengage from the blocking ball 15, so as to achieve the purpose of blocking the transportation of crude oil. At the same time, the setting of the oil passing hole 52 enables the device to transport crude oil normally, increasing the precision and safety of the device, and greatly reducing the probability of crude oil leakage. When the inlet pipe 21 and the outlet pipe 22 are screwed into the left valve body 11 and the right valve body 12, the conical groove 13 and the cylindrical groove 14 slide inside the inlet pipe 21 and the outlet pipe 22. At this time, the matching setting between the elastic ring 61 and the ring-shaped groove on the outer side wall of the conical groove 13 and the cylindrical groove 14 can make the fixing effect between the inlet pipe 21 and the left valve body 11 and between the outlet pipe 22 and the right valve body 12 better, reducing the situation of crude oil leakage from the connection between the inlet pipe 21 and the outlet pipe 22 and the left valve body 11 and the right valve body 12 during the transportation of crude oil, increasing the precision and safety of the device. The setting of the sealing ring 71 can reduce the situation of crude oil leakage from the connection between the left valve body 11 and the right valve body 12 when transporting crude oil inside the conical groove 13 and the cylindrical groove 14, increasing the precision and safety of the device.

[0032] The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A breakaway valve for a fuel dispenser, comprising a left valve body (11) and a right valve body (12); characterized in that: The left valve body (11) and the right valve body (12) are symmetrically arranged; the side wall of the left valve body (11) is provided with a cone-shaped groove (13); the side wall of the right valve body (12) is provided with a columnar groove (14); the cone-shaped groove (13) and the columnar groove (14) are communicated with each other; a blocking ball (15) is arranged inside the cone-shaped groove (13); the blocking ball (15) is arranged at a side position inside the cone-shaped groove (13) close to the columnar groove (14); the side wall of the blocking ball (15) is connected to a connecting rod (16); the connecting rod (16) is arranged at the connection between the cone-shaped groove (13) and the columnar groove (14).

2. A breakaway valve for a fuel dispenser according to claim 1, characterized in that: The outer walls of the left valve body (11) and the right valve body (12) are both fixedly connected with a threaded sleeve (23); the threaded sleeve (23) on the outer wall of the left valve body (11) is internally rotatably connected with an oil inlet pipe (21); the threaded sleeve (23) on the outer wall of the right valve body (12) is internally rotatably connected with an oil outlet pipe (22); the oil inlet pipe (21) is internally slidably connected with a cone-shaped groove (13); the oil outlet pipe (22) is internally slidably connected with a columnar groove (14); the outer walls of the oil inlet pipe (21) and the oil outlet pipe (22) are both fixedly connected with a ring-shaped baffle (24).

3. A breakaway valve for a fuel dispenser according to claim 2, characterized in that: Four left valve buckles (31) are fixedly connected to the outer wall of the left valve body (11); the four left valve buckles (31) are distributed in a circular array on the outer wall of the left valve body (11); four right valve buckles (32) are fixedly connected to the outer wall of the right valve body (12); the four right valve buckles (32) are distributed in a circular array on the outer wall of the right valve body (12); the left valve buckle (31) and the right valve buckle (32) are meshingly connected, and the left valve buckle (31) and the right valve buckle (32) are arranged at the connection position of the left valve body (11) and the right valve body (12).

4. A breakaway valve for a fuel dispenser according to claim 2, characterized in that: Two elastic rods (41) are connected between the inner side wall of the cone-shaped groove (13) and the blocking ball (15); the elastic rods (41) are symmetrically arranged inside the cone-shaped groove (13).

5. The breakaway valve for a fuel dispenser according to claim 1, characterized in that: A support plate (51) is fixedly connected to the side wall of the connecting rod (16); the support plate (51) is arranged at a position on the side of the side wall of the connecting rod (16) away from the blocking ball (15); a plurality of oil holes (52) are opened on the side wall of the support plate (51); the oil holes (52) are arranged in a circular array on the side wall of the support plate (51).

6. A breakaway valve for a fuel dispenser according to claim 4, characterized in that: The outer walls of the cone-shaped groove (13) and the columnar groove (14) are both provided with annular grooves, which are symmetrically arranged; the inner walls of the oil inlet pipe (21) and the oil outlet pipe (22) are both fixedly connected with elastic rings (61); the annular grooves on the outer walls of the cone-shaped groove (13) and the columnar groove (14) are arranged correspondingly to the elastic rings (61).

7. A breakaway valve for a fuel dispenser according to claim 3, characterized in that: A sealing ring (71) is fixedly connected to the inner side wall where the left valve body (11) and the right valve body (12) are connected; the sealing ring (71) is made of silicone rubber.

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