Backpack type oil injection igniter

Abstract

The utility model relates to the field of oil injection igniters, and discloses a backpack type oil injection igniter which comprises an igniter body, a spray gun and a connecting pipe, and the spray gun comprises a hollow handle, a gun barrel, a plug, an oil injection hole, a pressing piece, a connecting plate, a U-shaped plate, a rod body, a limiting assembly and an elastic assembly. Through the arrangement of the structure, the oil injection hole can be in an opened state during oil injection and can be in a blocked state when oil injection is finished, so that the phenomenon of tempering of the spray gun in the use process can be avoided, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of fuel injection igniters, in particular to a backpack fuel injection igniter. Background Art

[0002] The backpack fuel injection igniter is a new type of igniter that uses air pressure (manual pressure) as the power to spray oil mist or oil.

[0003] The existing backpack oil spray igniter sometimes has the phenomenon of flashback when in use, which makes it unsafe to use. Therefore, it is necessary to design a backpack oil spray igniter to solve the problems of the above-mentioned prior art. Utility Model Content

[0004] Based on the above problems, the purpose of the present invention is to provide a backpack fuel injection igniter to solve the problems existing in the above-mentioned prior art.

[0005] The utility model adopts the following technical solutions:

[0006] The utility model provides a backpack oil-spraying igniter, comprising an igniter body and a spray gun, wherein an oil outlet pipe of the igniter body is connected to the spray gun via a connecting pipe, and the spray gun comprises:

[0007] A hollow handle, one end of which is detachably connected to the connecting pipe, and the other end of which is detachably connected to a gun barrel, a plug being provided at the end of the gun barrel, and an oil injection hole being provided on the plug;

[0008] A pressing member, both sides of the top of the pressing member are hinged to the hollow handle through connecting plates, a U-shaped plate is hinged to the two connecting plates, and the end of the hollow handle is located within the range surrounded by the U-shaped plate;

[0009] A rod body, one end of which extends into the gun barrel and is press-sealed with the oil injection hole, and the other end of which slides and seals through the outside of the hollow handle and movably passes through the U-shaped plate;

[0010] a limiting assembly connected to the end of the rod body and abutting against the U-shaped plate;

[0011] An elastic component, one end of which is connected to the rod body, and the other end of which is against the inner wall of the hollow handle.

[0012] Furthermore, the elastic component includes a ring body 1, a spring, and a ring body 2 which are movably mounted on the rod body in sequence, the end of the ring body 2 abuts against the block on the outer wall of the rod body, the end of the ring body 1 abuts against the inner wall of the hollow handle, and the two ends of the spring abut against the ring body 1 and the ring body 2 respectively.

[0013] Furthermore, the movable sleeve on the rod body is provided with multiple sealing rings, and the multiple sealing rings are all located on the side of the ring body 1 away from the ring body 2, and the sealing rings located on the edge are respectively against the inner wall of the ring body 1 and the hollow handle.

[0014] Furthermore, the limiting assembly includes a nut threadedly connected to the end of the rod body, and the nut is abutted against the U-shaped plate through a gasket.

[0015] Furthermore, it also includes a locking nut, which is threadedly connected to the rod body, and the end of the locking nut is against the hollow handle.

[0016] Furthermore, the rod body is configured as a pointed end at one end away from the limiting assembly.

[0017] Furthermore, it also includes an ignition ring, which is connected to the gun barrel through multiple connecting rods and is located on the side of the plug away from the gun barrel; an ignition component is provided inside the ignition ring.

[0018] Furthermore, it also includes an oil deflector, which is movably arranged in the middle of the ignition ring on the side away from the plug.

[0019] Furthermore, a buffer tube is included, which is arranged between the hollow handle and the connecting tube, and the two ends of the buffer tube are detachably connected to the hollow handle and the connecting tube respectively.

[0020] Compared with the prior art, the beneficial technical effects of the present invention are:

[0021] By providing the pressing piece, connecting plate, U-shaped plate, rod body, limit assembly and elastic assembly, the oil injection hole can be opened when oil is spraying, and the oil injection hole can be blocked when oil spraying is finished, thereby avoiding the phenomenon of backfire of the spray gun during use of the utility model and improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the backpack fuel injection igniter of the present invention;

[0024] Figure 2 This is a schematic diagram of the partial three-dimensional structure of the spray gun of the utility model;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the ignition ring of the utility model;

[0026] Figure 4It is a partial planar cross-sectional view of the spray gun of the present invention;

[0027] Figure 5 for Figure 4 Enlarged view of part A.

[0028] Explanation of the accompanying symbols: 1. Ignition body; 101. Manual air pump; 102. Pressure gauge; 103. Regulating valve; 104. Pressure relief valve; 2. Spray gun; 21. Hollow handle; 22. Gun barrel; 23. Plug; 231. Oil spray hole; 3. Connecting pipe; 4. Pressing piece; 5. Connecting plate; 6. U-shaped plate; 7. Rod body; 8. Limiting assembly; 81. Nut; 82. Gasket; 9. Elastic assembly; 91. Ring body one; 92. Spring; 93. Ring body two; 94. Block; 10. Buffer tube; 11. Ignition ring; 12. Connecting rod; 13. Oil deflector; 14. Limiting rod; 15. Sealing ring; 16. Locking nut; 17. Cable tie; 18. Ergonomic back panel. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0030] like Figure 1-Figure 5 As shown, this embodiment discloses a backpack fuel injection igniter, including an igniter body 1 and a spray gun 2. The oil outlet pipe of the igniter body 1 is connected to the spray gun 2 through a connecting pipe 3. The spray gun 2 includes a hollow handle 21. One end of the hollow handle 21 is detachably connected to the connecting pipe 3, and the other end is detachably connected to a gun barrel 22. The end of the gun barrel 22 is provided with a plug 23, and the plug 23 is provided with a fuel injection hole 231; both sides of the top of the pressing member 4 are hinged to the hollow handle 21 through a connecting plate 5. A U-shaped plate 6 is hingedly connected to the two connecting plates 5, and the end of the hollow handle 21 is located within the range surrounded by the U-shaped plate 6; one end of the rod body 7 extends into the barrel 22 and is pressed and sealed with the oil injection hole 231, and the other end of the rod body 7 slides and seals through the outside of the hollow handle 21 and movably passes through the U-shaped plate 6; the limit component 8 is connected to the end of the rod body 7 and is against the U-shaped plate 6; one end of the elastic component 9 is connected to the rod body 7, and the other end is against the inner wall of the hollow handle 21.

[0031] In this embodiment, the barrel 22 and the hollow handle 21 are detachably connected by a threaded connection; the rod 7 is provided with a pointed end at the end away from the stopper assembly 8. When the pressing member 4 is pressed, the connecting plate 5 is driven to rotate about its hinged connection with the hollow handle 21. Under the action of the U-shaped plate 6 and the stopper assembly 8, the rod 7 is driven to move linearly away from the plug 23. At this time, the oil injection hole 231 is open, allowing normal oil injection, and the elastic assembly 9 is in a compressed state. When the pressing member 4 is released, the rebound force generated by the elastic assembly 9 drives the rod 7 to move linearly toward the plug 23 until the end of the rod 7 blocks the oil injection hole 231. At the same time, the stopper assembly 8, U-shaped plate 6, connecting plate 5, and the pressing member 4 return to their original positions. After the pressing member 4 is reset, the elastic assembly 9 remains in a compressed state, thus ensuring the sealing between the rod 7 and the oil injection hole 231.

[0032] By adopting this solution and setting the above-mentioned structure, the oil injection hole 231 can be in an open state when oil is spraying, and the oil injection hole 231 can be in a blocked state when oil spraying is finished, thereby avoiding the phenomenon of backfire of the spray gun 2 during use of the utility model and improving the safety of use.

[0033] In a further optimized solution, the limiting assembly 8 includes a nut 81 threadedly connected to the end of the rod body 7, and the nut 81 is abutted against the U-shaped plate 6 through a gasket 82. When the connecting plate 5 drives the U-shaped plate 6 to move, the rod body 7 can be driven to move through the provided nut 81 and gasket 82.

[0034] A further optimized solution further includes a locking nut 16, which is threadedly connected to the rod body 7, and the end of the locking nut 16 abuts against the hollow handle 21. The locking nut 16 can achieve the effect of locking and fixing the rod body 7, and work together with the nut 81 and the washer 82 to prevent the rod body 7 from rotating.

[0035] A further optimized solution further includes a buffer tube 10, which is disposed between the hollow handle 21 and the connecting tube 3, with its ends detachably connected to the hollow handle 21 and the connecting tube 3, respectively. In this embodiment, both ends of the buffer tube 10 are detachably connected to the hollow handle 21 and the connecting tube 3 via threaded connections. The buffer tube 10 can slow down the fluid and reduce pressure fluctuations.

[0036] A further optimized solution also includes an ignition ring 11, which is fixedly connected to the barrel 22 through multiple connecting rods 12, and the ignition ring 11 is located on the side of the plug 23 away from the barrel 22; an ignition part is provided inside the ignition ring 11; and an oil deflector 13 is movably provided in the middle of the ignition ring 11 on the side away from the plug 23.

[0037] In this embodiment, the ignition component can be set as a hemp rope, which is arranged along the circumference of the inside of the ignition ring 11, and the inner wall of the ignition ring 11 is fixed with multiple limiting rods 14 at intervals along the circumference for limiting the ignition component.

[0038] When the present invention is in use, first unscrew the manual air pump 101, inject the fuel until the liquid level reaches the oil port, and tighten the manual air pump 101; then use the manual air pump 101 to pressurize the igniter, observe the pressure gauge 102, and stop when the pressure gauge 102 displays a value of 0.3Mpa; Note: when the pressure exceeds 0.4Mpa, the pressure relief valve 104 will automatically relieve the pressure; after the pressurization is completed, slowly press the pressing piece 4, and when oil is sprayed from the oil injection hole 231 to the oil stopper 13, the ignition piece can be ignited with an open flame; after the ignition piece is ignited, remove the oil stopper 13, and flame spraying can be performed by pressing the pressing piece 4; the fuel output can be adjusted by twisting the regulating valve 103 on the oil outlet pipe.

[0039] As a further optimization solution, an ergonomic back plate 18 is fixed to the outer wall of the igniter body 1 by a cable tie 17 , and shoulder straps are detachably installed on both sides of the ergonomic back plate 18 , so that the igniter body 1 can be carried on the back through the shoulder straps and the ergonomic back plate 18 .

[0040] To further optimize the solution, the elastic component 9 includes a ring body 1 91, a spring 92, and a ring body 2 93, which are movably mounted on the rod body 7 in sequence. The end of the ring body 2 93 abuts against the stop block 94 on the outer wall of the rod body 7, the end of the ring body 1 91 abuts against the inner wall of the hollow handle 21, and the two ends of the spring 92 abut against the ring body 1 91 and the ring body 2 93 respectively.

[0041] In this embodiment, there are multiple blocks 94, which are arranged at intervals along the circumference of the rod body 7, and the blocks 94 are fixedly connected to the rod body 7; when the pressing member 4 is pressed, the rod body 7 moves linearly in the direction away from the plug 23, and the block 94 drives the ring body 2 93 to move in the same direction. Since the ring body 1 91 is against the inner wall of the hollow handle 21, the spring 92 will be compressed and generate a rebound force.

[0042] In a further optimization, multiple sealing rings 15 are movably mounted on the rod body 7. These sealing rings 15 are located on the side of the first ring body 91 away from the second ring body 93. The sealing rings 15 located at the edge respectively abut against the inner wall of the first ring body 91 and the hollow handle 21. The multiple sealing rings 15 provide a sliding, sealed connection between the rod body 7 and the hollow handle 21.

[0043] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A backpack fuel injection igniter, comprising an igniter body (1) and a spray gun (2), wherein an oil outlet pipe of the igniter body (1) is connected to the spray gun (2) via a connecting pipe (3), and is characterized in that: The spray gun (2) comprises: A hollow handle (21), one end of the hollow handle (21) is detachably connected to the connecting pipe (3), and the other end is detachably connected to a gun barrel (22), a plug (23) is provided at the end of the gun barrel (22), and an oil injection hole (231) is provided on the plug (23); A pressing member (4), both sides of the top of the pressing member (4) are hinged to the hollow handle (21) through a connecting plate (5), a U-shaped plate (6) is hinged to the two connecting plates (5), and the end of the hollow handle (21) is located within the range surrounded by the U-shaped plate (6); A rod body (7), one end of the rod body (7) extends into the gun barrel (22) and is pressed and sealed with the oil injection hole (231), and the other end of the rod body (7) slides and seals through the outside of the hollow handle (21) and movably passes through the U-shaped plate (6); A limiting assembly (8), the limiting assembly (8) is connected to the end of the rod body (7) and abuts against the U-shaped plate (6); An elastic component (9), one end of the elastic component (9) is connected to the rod body (7), and the other end is against the inner wall of the hollow handle (21).

2. The backpack fuel injection igniter according to claim 1, characterized in that: The elastic component (9) comprises a ring body 1 (91), a spring (92), and a ring body 2 (93) which are movably mounted on the rod body (7) in sequence, the end of the ring body 2 (93) abuts against a stopper (94) on the outer wall of the rod body (7), the end of the ring body 1 (91) abuts against the inner wall of the hollow handle (21), and the two ends of the spring (92) abut against the ring body 1 (91) and the ring body 2 (93) respectively.

3. The backpack fuel injection igniter according to claim 2, characterized in that: The rod body (7) is provided with a plurality of sealing rings (15) on a movable sleeve. The plurality of sealing rings (15) are all located on the side of the ring body 1 (91) away from the ring body 2 (93). The sealing rings (15) located at the edge respectively abut against the inner wall of the ring body 1 (91) and the hollow handle (21).

4. The backpack fuel injection igniter according to claim 1, characterized in that: The limiting assembly (8) comprises a nut (81) threadedly connected to the end of the rod body (7), and the nut (81) is abutted against the U-shaped plate (6) via a gasket (82).

5. The backpack fuel injection igniter according to claim 1, characterized in that: It also includes a locking nut (16), which is threadedly connected to the rod body (7), and the end of the locking nut (16) is against the hollow handle (21).

6. The backpack fuel injection igniter according to claim 1, characterized in that: The rod body (7) is configured as a pointed end at an end away from the limiting assembly (8).

7. The backpack fuel injection igniter according to claim 1, characterized in that: The invention also comprises an ignition ring (11), which is connected to the gun barrel (22) through a plurality of connecting rods (12) and is located on a side of the plug (23) away from the gun barrel (22); an ignition component is provided inside the ignition ring (11).

8. The backpack fuel injection igniter according to claim 7, characterized in that: It also includes an oil deflector (13), which is movably arranged in the middle of the ignition ring (11) on a side away from the plug (23).

9. The backpack fuel injection igniter according to claim 1, characterized in that: It also includes a buffer tube (10), which is arranged between the hollow handle (21) and the connecting tube (3), and its two ends are detachably connected to the hollow handle (21) and the connecting tube (3).

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