Pressure fuel flow regulating valve

Abstract

The utility model discloses a pressure fuel flow regulating valve, which relates to the technical field of stove regulating valves, and comprises a valve shell and a valve spring, one side of the valve shell is provided with an inlet connecting end, the other side of the valve shell is provided with an outlet connecting end, a top sealing cover is arranged right above the valve shell, and the valve spring is arranged on the valve shell. A lifting mechanism is arranged on the outer side of the valve shell, the lifting mechanism lifts the two sides of the valve shell so as to conduct damping treatment on the outer side of the valve shell, an adjusting mechanism is arranged in the valve shell, the adjusting mechanism controls the flow of liquid, and therefore the situation that the flow of fuel is too large due to the fact that the fuel flow changes too much is avoided. Potential safety hazards of unstable flame combustion and fuel leakage are caused, and the combustion efficiency of the gas appliance is affected. The fuel regulating valve effectively solves the problem that fuel flow cannot be controlled due to fuel backflow and direct connection caused by pressure generated by a special bottle.

Description

Technical Field

[0001] The utility model relates to the technical field of stove regulating valves, in particular to a pressure fuel flow regulating valve. Background Art

[0002] Before the relevant national standards for liquid fuels were issued, the market for liquid fuel appliances used gravity flow and self-priming oil pumps to supply fuel to the burners. However, due to the structural design of the oil pump, if the appliance was not used for a period of time, the fuel in the oil line would flow back into the container, causing the second start-up time to be prolonged. Some people used traditional check valves, but the effect was not very ideal.

[0003] Local standards for liquid fuels, especially alcohol-based fuels, began to be introduced. After the relevant national standards came out and the government started the replacement of liquefied petroleum gas, legal and compliant liquid fuel containers had a certain amount of pressure or negative pressure when filling, causing the self-priming pump to directly become straight-through under this pressure, unable to control the flow normally, and the flow rate increased or decreased, causing unstable firepower and fuel leakage safety hazards, affecting the combustion effect of the gas appliance. Utility Model Content

[0004] The purpose of the present utility model is to provide a pressure fuel flow regulating valve to solve the above-mentioned defects caused by the prior art.

[0005] A pressure fuel flow regulating valve includes a valve housing and a valve spring, an inlet connection end is provided on one side of the valve housing, an outlet connection end is provided on the other side of the valve housing, a top sealing cover is provided directly above the valve housing, a lifting mechanism is provided on the outside of the valve housing, the lifting mechanism lifts both sides of the valve housing, and then performs shock-absorbing treatment on the outside of the valve housing, and an adjusting mechanism is provided inside the valve housing, the adjusting mechanism controls the flow rate of the liquid, thereby avoiding affecting the combustion efficiency of the burner due to excessive changes in the fuel flow rate.

[0006] Preferably, the valve spring, valve core, fuel outlet, sealing ring, flow regulating outlet hole, and sealing ring groove constitute an adjusting mechanism, the valve spring is arranged on the outside of the valve core, the fuel outlet is symmetrically opened on the outside of the valve core, a sealing ring is nested and connected to the outside of the valve core, a flow regulating outlet hole is opened on the other side of the valve core, a sealing ring groove is opened in an annular shape on the outside of the valve core, and the valve core is arranged inside the valve housing.

[0007] Preferably, the valve core is connected to one side of the outlet connection end through a fuel outlet opened on the outside.

[0008] Preferably, the lifting mechanism includes a side lifting frame, a support seat, a rubber pad and a side flat iron sheet. Side flat iron sheets are evenly spaced on the outside of the side lifting frame. A rubber pad is fitted on the outside of the side lifting frame. An inlet connection end is provided directly above the rubber pad. The side lifting frames are symmetrically distributed on both sides of the valve housing.

[0009] Preferably, the side support frame is connected to one side of the valve housing through a side flat iron sheet arranged on the outside.

[0010] Preferably, a liquid injection through hole is formed through the outer side of the inlet connection end.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. The fuel regulating valve effectively solves the problem of fuel reflux and pressure generated by the special bottle causing the oil pump to fail and become unable to control the fuel directly; the high-speed and low-speed dual air inlet device is used to effectively solve the problem of large fire but no small fire encountered in the current liquid fuel stove. The two sides of the valve housing are supported by symmetrically arranged side support frames, and the outer side of the valve housing is decompressed by rubber pads to avoid excessive vibration of the valve housing during operation, which affects the stability of liquid transportation.

[0013] 2. There has been no pressure fuel flow regulating valve on existing burning appliances. The invention of this utility model can effectively solve the influence of the pressure in the container during filling on the flow control of the oil pump. The combination of the pressure fuel flow regulating valve structure can effectively avoid the fuel backflow during the secondary use of the burning appliance, which causes the ignition time to be extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the structure inside the valve housing of the present invention.

[0016] Figure 3 It is a structural schematic diagram of the valve core itself in the utility model.

[0017] Figure 4 This is a schematic structural diagram of the valve core in the present invention from a side view.

[0018] Figure 5 This is a schematic diagram of the side support frame in the utility model from the side view

[0019] in:

[0020] 1. Valve housing; 2. Inlet connection end; 3. Outlet connection end; 4. Top sealing cover; 5. Valve spring; 6. Valve core; 7. Fuel outlet; 8. Sealing ring; 9. Flow regulating hole; 10. Sealing ring groove; 11. Side support frame; 12. Support seat; 13. Support mechanism; 14. Rubber pad; 15. Liquid injection hole; 16. Side flat iron sheet. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figures 1 to 5 As shown, a pressure fuel flow regulating valve includes a valve housing 1 and a valve spring 5. An inlet connection end 2 is provided on one side of the valve housing 1, and an outlet connection end 3 is provided on the other side of the valve housing 1. A top sealing cover 4 is provided directly above the valve housing 1. A lifting mechanism 13 is provided on the outside of the valve housing 1. The lifting mechanism 13 lifts both sides of the valve housing 1, thereby performing shock absorption treatment on the outside of the valve housing 1. An adjusting mechanism is provided inside the valve housing 1. The adjusting mechanism controls the flow rate of the liquid, thereby avoiding affecting the combustion efficiency of the burner due to excessive changes in the fuel flow rate.

[0023] In this embodiment, the valve spring 5, valve core 6, fuel outlet 7, sealing ring 8, flow regulating outlet hole 9, and sealing ring groove 10 constitute an adjusting mechanism. The valve spring 5 is arranged on the outside of the valve core 6. The fuel outlet 7 is symmetrically opened on the outside of the valve core 6. The sealing ring 8 is nested and connected to the outside of the valve core 6. A flow regulating outlet hole 9 is opened on the other side of the valve core 6. A sealing ring groove 10 is opened in an annular shape on the outside of the valve core 6. The valve core 6 is arranged inside the valve housing 1. The outside of the valve core 6 is positioned and dynamically adjusted by the valve spring 5, thereby improving the flexibility of variable adjustment of the valve core 6.

[0024] In this embodiment, the valve core 6 is connected to one side of the outlet connection end 3 through a fuel outlet 7 opened on the outside, and the fuel is directly discharged through the fuel outlet 7 to complete the variable output of the fuel.

[0025] In this embodiment, the lifting mechanism 13 includes a side lifting frame 11, a support seat 12, a rubber pad 14 and a side flat iron sheet 16. The side flat iron sheets 16 are evenly spaced on the outside of the side lifting frame 11. The rubber pad 14 is fitted on the outside of the side lifting frame 11. The inlet connection end 2 is provided directly above the rubber pad 14. The side lifting frame 11 is symmetrically distributed on both sides of the valve housing 1. The rubber pad 14 and the side flat iron sheet 16 are used to increase the friction of the equipment positioning to prevent the equipment from deforming and loosening.

[0026] In this embodiment, the side support frame 11 is connected to one side of the valve housing 1 through a side flat iron sheet 16 provided on the outside, and the outside of the side support frame 11 is positioned by the side flat iron sheet 16 to complete the positioning of the equipment.

[0027] In this embodiment, a liquid injection hole 15 is formed through the outer side of the inlet connecting end 2 , and the variable fuel is directly discharged through the liquid injection hole 15 .

[0028] In practical application, this pressure fuel flow regulating valve includes the following working contents:

[0029] Step 1: The valve housing 1 is connected to the self-priming pump input end through the inlet connection end 2 and the outlet connection end 3 on both sides, and the outlet connection end 3 is connected to the input end of the fuel appliance. The top sealing cover 4 is opened, and the valve spring 5 is installed inside the valve housing 1, and is installed on the outside of the valve core 6 through the valve spring 5. The valve core 6 is positioned by the valve spring 5 to prevent the valve core 6 from loosening or displacement after opening and closing.

[0030] Step 2: The fuel burner is started. There is still a pressure vessel. The fuel pushes the check valve core 6 upward under pressure. The fuel enters the valve body through the gap between the valve core 6 and the valve housing 1. The pressure and the check valve core 6 push the flow valve spring 5 to deform and compress. The flow valve core 6 moves upward. The sealing ring 8 in front of the flow valve core 6 blocks the outlet. The fuel enters the oil pump through the fuel outlet 7 set on one side of the flow valve core 6. The flow regulating outlet 9 directly discharges the outflowing fuel into the interior of the valve housing 1. The burning appliance stops, the valve spring 5 recovers, the valve core 6 falls back, the check valve core 6 falls back, and the valve core 6 seals one side of the outlet connection end 3 through the sealing ring 8 set on the outside, seals the flow regulating outlet 9, blocks the lower inlet, and the fuel does not flow back.

[0031] Step 3: When negative pressure or no pressure is applied, the inlet connection end 2 on one side of the valve housing 1 sucks the check valve core 6 upward through the suction of the self-priming pump. The valve core 6 is positioned and displaced on the outside of the valve housing 1 by the valve spring 5 arranged on the outside. The fuel enters the valve body from the gap between the check valve and the valve housing 1. When the flow regulating valve core 6 is under no pressure, the valve spring 5 does not deform or compress. The fuel enters the oil pump from the gap between the flow valve core 6 and the valve housing 1 and the center hole. The sealing ring groove 10 nests and positions the rubber ring of the corresponding diameter. The burning appliance stops, and the check valve and the flow valve fall back to block the liquid injection hole 15, so that the fuel does not flow back.

[0032] Step 4: The operator nests the side support frame 11 on the inlet connection end 2 and the outlet connection end 3 provided on the left and right sides of the valve housing 1, so that the rubber pad 14 provided on the outside fits the outside of the inlet connection end 2 and the outlet connection end 3, and positions the side flat iron sheet 16 on both sides of the valve housing 1. When the valve housing 1 needs to be connected to the burning appliance, it is connected to one side of the burning appliance through the support seat 12, and one side of the burning appliance is locked with screws.

[0033] Therefore, the embodiments disclosed above are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A pressure fuel flow regulating valve, characterized in that: The invention comprises a valve housing (1) and a valve spring (5), wherein an inlet connection end (2) is provided on one side of the valve housing (1), an outlet connection end (3) is provided on the other side of the valve housing (1), a top sealing cover (4) is provided directly above the valve housing (1), a lifting mechanism (13) is provided on the outside of the valve housing (1), the lifting mechanism (13) lifts both sides of the valve housing (1), and thereby performs shock absorption treatment on the outside of the valve housing (1), and an adjusting mechanism is provided inside the valve housing (1), the adjusting mechanism controls the flow rate of the liquid, thereby avoiding affecting the combustion efficiency of the burner due to excessive changes in the fuel flow rate.

2. A pressure fuel flow regulating valve according to claim 1, characterized in that: The valve spring (5), valve core (6), fuel outlet (7), sealing ring (8), flow regulating outlet hole (9), and sealing ring groove (10) constitute an adjusting mechanism. The valve spring (5) is arranged on the outside of the valve core (6). The fuel outlet (7) is symmetrically opened on the outside of the valve core (6). The sealing ring (8) is nested and connected to the outside of the valve core (6). The flow regulating outlet hole (9) is opened on the other side of the valve core (6). The sealing ring groove (10) is annularly opened on the outside of the valve core (6). The valve core (6) is arranged inside the valve housing (1).

3. A pressure fuel flow regulating valve according to claim 2, characterized in that: The valve core (6) is connected to one side of the outlet connection end (3) via a fuel outlet (7) opened on the outside.

4. The pressure fuel flow regulating valve according to claim 1, characterized in that: The lifting mechanism (13) includes a side lifting frame (11), a support seat (12), a rubber pad (14) and a side flat iron sheet (16); the side flat iron sheets (16) are evenly spaced on the outside of the side lifting frame (11); the rubber pad (14) is fitted on the outside of the side lifting frame (11); an inlet connection end (2) is provided directly above the rubber pad (14); and the side lifting frame (11) is symmetrically distributed on both sides of the valve housing (1).

5. A pressure fuel flow regulating valve according to claim 4, characterized in that: The side lifting frame (11) is connected to one side of the valve housing (1) via a side flat iron sheet (16) arranged on the outside.

6. The pressure fuel flow regulating valve according to claim 1, characterized in that: A liquid injection through hole (15) is provided through the outer side of the inlet connection end (2).

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