Engine fuel control switch

Abstract

The utility model discloses an engine fuel control switch, which relates to the technical field of fuel switches and particularly comprises a switch valve seat, two sides of the switch valve seat are respectively provided with two fuel inlet pipes, the bottom of the switch valve seat is provided with a fuel outlet pipe, and one end of each fuel inlet pipe far away from the switch valve seat is detachably connected with a guide pipe assembly. A valve rod is connected to the top of the switch valve seat in a penetrating mode, a valve element is connected to the bottom of the valve rod, and a stirring assembly is fixedly installed at the top of the valve rod and can drive the valve element to rotate relative to the switch valve seat through the valve rod so as to open and close the fuel inlet pipe. According to the engine fuel control switch, the driving handle rotates to drive the valve rod and the valve element to be rotationally connected with the fuel inlet pipe or close the fuel inlet pipe, after the driving handle is adjusted, the clamp can be clamped and fixed with the chuck under the driving of elastic potential energy of the spring, so that the valve element is locked, and the stability of fuel supply is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel switches, in particular to an engine fuel control switch. Background Art

[0002] At present, small engines fueled by gasoline, diesel, natural gas, liquefied gas, etc. and the power equipment they drive mainly provide temporary power, mobile power and special machinery for hospitals, hotels, homes, urban construction, environmental protection and other fields. In recent years, with the increasing popularity of outdoor camping and adventure, small engines also provide temporary power for them.

[0003] When starting the existing dual-fuel engine, you must first select the fuel to be used and change the fuel channel through the control switch. However, the traditional control switch is prone to switch misalignment due to vibration after opening and closing, causing the switch size to change or even close. For this reason, we provide an engine fuel control switch. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an engine fuel control switch, which can be locked in time after the fuel switch is adjusted to ensure normal fuel supply.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: an engine fuel control switch, comprising a switch valve seat, two fuel inlet pipes are respectively arranged on both sides of the switch valve seat, a fuel outlet pipe is arranged at the bottom of the switch valve seat, one end of the fuel inlet pipe away from the switch valve seat is detachably connected with a catheter assembly, the catheter assembly and the switch valve seat are detachably connected, so as to facilitate the replacement of the catheter assembly and also facilitate the installation of the catheter assembly, a valve stem is connected through the top of the switch valve seat, a valve core is connected to the bottom of the valve stem, a toggle assembly is also fixedly installed on the top of the valve stem, and the toggle assembly can drive the valve core to rotate relative to the switch valve seat through the valve stem to open and close the fuel inlet pipe.

[0006] Optionally, the catheter assembly includes a mounting nut and a catheter pipeline passing through the middle of the mounting nut, and the catheter pipeline is connected and fixed to the fuel inlet pipe through the mounting nut. When installing the catheter pipeline, it is only necessary to rotate the mounting nut, and the mounting nut is threadedly connected to the fuel inlet pipe to fix the catheter pipeline.

[0007] Optionally, the side wall of the mounting nut is provided with external thread teeth, the side wall of the fuel inlet pipe is provided with a thread groove adapted to the external thread teeth, the mounting nut is threadedly connected to the fuel inlet pipe, and the threaded connection is convenient for installation and disassembly.

[0008] Optionally, a sealing gasket is provided on the side wall of the conduit pipeline. When the mounting nut is threadedly connected to the fuel inlet pipe, the sealing gasket can be squeezed to deform to close the gap between the fuel inlet pipe and the conduit pipeline. After installation, the connection gap is closed by the deformation of the sealing ring, thereby avoiding the risk of leakage.

[0009] Optionally, the valve core is disc-shaped, a side wall of the valve core is provided with a fan-shaped inlet, and a bottom of the valve core is provided with a cylindrical outlet. The fan-shaped inlet is convenient for docking with the fuel inlet pipe, and the cylindrical outlet can be connected to the fuel outlet pipe.

[0010] Optionally, the toggle assembly includes a driving handle fixedly connected to the valve stem, and the inner side wall of the driving handle is rotatably connected to a clamp. The toggle assembly also includes a chuck fixedly connected to the switch valve seat, and the driving handle is restricted from rotating when the clamp is engaged with the chuck. The rotation of the driving handle is restricted by the engagement between the chuck and the clamp, so that the safety of the entire control switch is ensured.

[0011] Optionally, the rotational connection between the driving handle and the clamp is formed by a rotating shaft arranged on the clamp, and a spring is also clamped on the top of the clamp, and the spring is fixedly connected to the driving handle. The advantage of using a spring is that the clamp can be pushed to be clamped and fixed to the chuck.

[0012] Optionally, the side wall of the chuck is provided with a plurality of latching teeth matched with the clamp, the covering angle of the latching teeth is greater than 180 degrees, and the clamp can be fixedly engaged with the latching teeth at any position with the latching teeth.

[0013] The utility model provides an engine fuel control switch, which has the following beneficial effects:

[0014] The engine fuel control switch is provided with a switch valve seat, a fuel inlet pipe, a fuel outlet pipe, a catheter assembly, a valve stem, a valve core and a toggle assembly. The catheter assembly is detachably connected to the fuel inlet pipe, thereby facilitating replacement of the catheter assembly. At the same time, when installing the catheter assembly, only the installation nut needs to be rotated without rotating the entire catheter assembly, which is convenient for installation. The driving handle can be rotated to drive the valve stem and the valve core to rotate and connect the fuel inlet pipe or close the fuel inlet pipe. After the driving handle is adjusted, the clamp can be fixed with the chuck under the drive of the elastic potential energy of the spring, thereby completing the locking of the valve core and ensuring the stability of the fuel supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0017] Figure 3This is a schematic diagram of the structure of the utility model when viewed from above;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the valve core and valve stem of the utility model;

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the valve core of the utility model.

[0020] In the figure: 1. switch valve seat; 2. fuel inlet pipe; 3. fuel outlet pipe; 4. catheter assembly; 41. mounting nut; 42. catheter pipeline; 43. sealing gasket; 5. valve stem; 6. valve core; 61. fan-shaped inlet; 62. cylindrical outlet; 7. toggle assembly; 71. drive handle; 72. clamp; 73. chuck; 74. spring; 75. tooth. DETAILED DESCRIPTION

[0021] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0022] 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. 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.

[0023] See also Figures 1 to 5 The utility model provides a technical solution: an engine fuel control switch, comprising a switch valve seat 1, two fuel inlet pipes 2 are respectively arranged on both sides of the switch valve seat 1, a fuel outlet pipe 3 is arranged at the bottom of the switch valve seat 1, and one end of the fuel inlet pipe 2 away from the switch valve seat 1 is detachably connected with a conduit assembly 4, and the conduit assembly 4 is detachably connected to the switch valve seat 1, so as to facilitate the replacement of the conduit assembly 4 and also facilitate the installation of the conduit assembly 4, a valve stem 5 is connected through the top of the switch valve seat 1, a valve core 6 is connected to the bottom of the valve stem 5, and a toggle assembly 7 is also fixedly installed on the top of the valve stem 5, and the toggle assembly 7 can drive the valve core 6 to rotate relative to the switch valve seat 1 through the valve stem 5 to open and close the fuel inlet pipe 2.

[0024] As a preferred embodiment, on the basis of the above method, further, the catheter assembly 4 includes a mounting nut 41 and a catheter pipeline 42 passing through the middle of the mounting nut 41, and the catheter pipeline 42 is connected and fixed to the fuel inlet pipe 2 through the mounting nut 41. When installing the catheter pipeline 42, it is only necessary to rotate the mounting nut 41, and the mounting nut 41 is threadedly connected to the fuel inlet pipe 2 to fix the catheter pipeline 42.

[0025] The side wall of the mounting nut 41 is provided with external thread teeth, and the side wall of the fuel inlet pipe 2 is provided with a thread groove matched with the external thread teeth. The mounting nut 41 is threadedly connected to the fuel inlet pipe 2, and the threaded connection is convenient for installation and disassembly. The side wall of the conduit pipeline 42 is provided with a sealing gasket 43. When the mounting nut 41 is threadedly connected to the fuel inlet pipe 2, the sealing gasket 43 can be squeezed to deform to close the gap between the fuel inlet pipe 2 and the conduit pipeline 42. After the installation is completed, the connection gap is closed by the deformation of the sealing ring 43, thereby avoiding the risk of leakage.

[0026] The valve core 6 is disc-shaped, and a fan-shaped inlet 61 is provided on the side wall of the valve core 6 , and a cylindrical outlet 62 is provided at the bottom of the valve core 6 . The fan-shaped inlet 61 is convenient for docking with the fuel inlet pipe 2 , and the cylindrical outlet 62 can be connected to the fuel outlet pipe 3 .

[0027] As a preferred embodiment, on the basis of the above-mentioned method, further, the toggle assembly 7 includes a driving handle 71 fixedly connected to the valve stem 5, and the inner side wall of the driving handle 71 is rotatably connected with a clamp 72. The toggle assembly 7 also includes a chuck 73 fixedly connected to the switch valve seat 1. When the clamp 72 is engaged with the chuck 73, the rotation of the driving handle 71 is restricted. The rotation of the driving handle 71 is restricted by the engagement of the chuck 73 with the clamp 72, so that the safety of the entire control switch is guaranteed.

[0028] The driving handle 71 and the clamp 72 are rotatably connected via a rotating shaft disposed on the clamp 72. A spring 74 is also clamped on the top of the clamp 72. The spring 74 is fixedly connected to the driving handle 71. The advantage of using the spring 74 is that it can push the clamp 72 to be clamped and fixed to the chuck 73.

[0029] The side wall of the chuck 73 is provided with a plurality of latching teeth 75 adapted to the clamp 72 . The covering angle of the latching teeth 75 is greater than 180 degrees. The clamp 72 can be latched and fixed with the latching teeth 75 at any position where the latching teeth 75 are provided.

[0030] In summary, for the engine fuel control switch, during use, the conduit assembly 4 is detachably connected to the fuel inlet pipe 2, which facilitates the replacement of the conduit assembly 4. At the same time, when installing the conduit assembly 4, only the installation nut 41 needs to be rotated without rotating the entire conduit assembly 4, which is convenient for installation. Rotating the drive handle 71 can drive the valve stem 5 and the valve core 6 to rotate to connect or close the fuel inlet pipe 2. After the adjustment of the drive handle 71 is completed, the clip 72 can be clamped and fixed with the chuck 73 under the driving of the elastic potential energy of the spring 74, thereby completing the locking of the valve core 6 and ensuring the stability of fuel supply.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engine fuel control switch, characterized in that: The invention comprises a switch valve seat (1), two fuel inlet pipes (2) are respectively arranged on both sides of the switch valve seat (1), a fuel outlet pipe (3) is arranged at the bottom of the switch valve seat (1), one end of the fuel inlet pipe (2) away from the switch valve seat (1) is detachably connected to a guide tube assembly (4), a valve stem (5) is connected through the top of the switch valve seat (1), a valve core (6) is connected to the bottom of the valve stem (5), and a toggle assembly (7) is fixedly installed on the top of the valve stem (5), and the toggle assembly (7) can drive the valve core (6) to rotate relative to the switch valve seat (1) through the valve stem (5) to open and close the fuel inlet pipe (2).

2. The engine fuel control switch according to claim 1, characterized in that: The conduit assembly (4) comprises a mounting nut (41) and a conduit pipeline (42) passing through the middle of the mounting nut (41); the conduit pipeline (42) is connected and fixed to the fuel inlet pipe (2) via the mounting nut (41).

3. The engine fuel control switch according to claim 2, characterized in that: The side wall of the mounting nut (41) is provided with external thread teeth, the side wall of the fuel inlet pipe (2) is provided with a thread groove matched with the external thread teeth, and the mounting nut (41) is threadedly connected to the fuel inlet pipe (2).

4. An engine fuel control switch according to claim 2, characterized in that: The side wall of the conduit pipe (42) is sleeved with a sealing gasket (43), and when the mounting nut (41) is threadedly connected to the fuel inlet pipe (2), the sealing gasket (43) can be squeezed to deform so as to close the gap between the fuel inlet pipe (2) and the conduit pipe (42).

5. The engine fuel control switch according to claim 1, characterized in that: The valve core (6) is disc-shaped, a fan-shaped inlet (61) is provided on the side wall of the valve core (6), and a cylindrical outlet (62) is provided on the bottom of the valve core (6).

6. The engine fuel control switch according to claim 1, characterized in that: The toggle assembly (7) comprises a driving handle (71) fixedly connected to the valve stem (5), the inner side wall of the driving handle (71) being rotatably connected to a clamp (72), and the toggle assembly (7) further comprises a chuck (73) fixedly connected to the switch valve seat (1), and when the clamp (72) is engaged with the chuck (73), the driving handle (71) is restricted from rotating.

7. The engine fuel control switch according to claim 6, wherein: The driving handle (71) and the clamp (72) are rotatably connected via a rotating shaft arranged on the clamp (72). A spring (74) is also clamped on the top of the clamp (72), and the spring (74) is fixedly connected to the driving handle (71).

8. An engine fuel control switch according to claim 7, characterized in that: The side wall of the chuck (73) is provided with a plurality of latching teeth (75) adapted to the clamp (72), and the covering angle of the latching teeth (75) is greater than 180 degrees.

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