Insect-proof gas appliance

Abstract

The utility model discloses an insect-proof gas appliance. The device comprises an injection pipe, one end of the injection pipe is an air inlet end connected with a nozzle, an air door is arranged on the peripheral face of the air inlet end, the device further comprises an insect-proof net device, the insect-proof net device is detachably connected and fixed to the peripheral face of the air inlet end, the insect-proof net device shields the air door, and net holes of the insect-proof net device are communicated with an inner cavity of the air inlet end through the air door. According to the utility model, after the insect-proof net device is detached, the nozzle is conveniently clamped through the air door, then air tightness detection is completed, and the insect-proof net device is installed after detection. While reliable insect prevention is ensured, airtightness detection can be realized without dismounting the connection between the nozzle and the injection pipe. The whole structure is reasonable and reliable in design. The insect-proof net device is easy to manufacture, simple in structure and easy to assemble and disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of gas appliances, in particular to an insect-proof gas appliance. Background Art

[0002] The existing gas appliances include a burner and a valve body. The nozzle of the valve body is connected to the ejector pipe of the burner. The ejector pipe is provided with a damper for inhaling air. According to the regulations, measures should be taken to prevent insects from entering the ejector pipe to prevent accidents caused by blockage of the ejector pipe and the burner. For example, in Chinese patent CN209355243U, an insect-proof net is provided on the inner end face of the air suction section of the ejector pipe.

[0003] Although the above structure solves the problem of insect prevention, the nozzle is inserted into and fixed in the ejector tube. This results in that after the gas circuit of the gas appliance is installed, when the air tightness from the valve body to the nozzle is tested by the air tightness tester, the nozzle cannot be blocked by the clamp because the damper is blocked by the insect-proof net, and the air tightness of the gas circuit cannot be measured. The sealing of the gas circuit cannot be tested, which poses a safety hazard. Utility Model Content

[0004] The utility model aims to provide an insect-proof gas appliance with a detachable insect-proof net device for convenient airtight detection.

[0005] The purpose of the utility model is achieved in this way.

[0006] An insect-proof gas appliance comprises an ejector pipe, one end of which is an air inlet end connected to a nozzle, an outer peripheral surface of the air inlet end is provided with an air gate, and an insect-proof net device is also included. The insect-proof net device is detachably fixed to the outer peripheral surface of the air inlet end, the insect-proof net device blocks the air gate, and the mesh holes of the insect-proof net device are connected to the inner cavity of the air inlet end through the air gate.

[0007] The above technical solution can be further improved as follows.

[0008] In a more specific solution, the insect-proof net device includes a fixing member and a partition net, the fixing member is provided with an air inlet hole corresponding to the air door, the partition net covers the air inlet hole, the partition net and the fixing member are fixedly connected, and the partition net is provided with the mesh hole. The insect-proof net device is easy to manufacture and has a simple structure.

[0009] In a more specific solution, a positioning hole is provided on the fixing piece, a stud and a nut are provided around the air door on the outer peripheral surface of the air inlet end, the positioning hole of the fixing piece is sleeved on the stud, the nut and the stud are threadedly connected to form the detachable connection, and the air inlet is aligned with the air door. The insect-proof net device is easy to assemble and disassemble.

[0010] In a more specific solution, a positioning hole is provided on the fixing piece, screw holes and screws are provided around the air door on the outer peripheral surface of the air inlet end, the positioning hole and the screw holes are aligned, the air inlet hole is aligned with the air door, and the screws pass through the positioning hole and the screw holes to form the detachable connection. The insect-proof net device is easy to assemble and disassemble.

[0011] In a more specific solution, at least the periphery of the air inlet hole of the fixing member is in contact with the outer peripheral surface of the air inlet end, thereby ensuring a reliable insect-proof effect.

[0012] In a more specific solution, the fixing member is an arc-shaped plate or a cylinder, and the fixing member fits the outer peripheral surface of the air inlet end.

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

[0014] After the insect-proof net device in the utility model is disassembled, it is convenient to clamp the nozzle through the air door, thereby completing the airtightness test, and then installing the insect-proof net device after the test. While ensuring reliable insect prevention, the airtightness test can be achieved without removing the connection between the nozzle and the ejection tube. The overall structural design is reasonable and reliable. The insect-proof net device is easy to manufacture, has a simple structure, and is easy to assemble and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of embodiment 1.

[0016] Figure 2 This is a schematic diagram of the structure of the first embodiment (the anti-insect net device is disassembled).

[0017] Figure 3 The figure is a schematic diagram of the structure of the insect-proof net device and the ejection tube of the first embodiment.

[0018] Figure 4 This is a schematic diagram of the installation structure of the insect-proof net device and the ejection tube of Example 2.

[0019] Figure 5 for Figure 4 Schematic diagram of the decomposition structure. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Example 1, see Figure 1-3 As shown, an insect-proof gas appliance comprises a valve body 1, an ejector pipe 2, a burner head 3 and an insect-proof net device 4. The outlet pipe 11 of the valve body 1 is provided with a nozzle 12, and the nozzle 12 extends into and is fixed in the air inlet end 21 of the ejector pipe 2, and a damper 20 is provided on the outer peripheral surface of the air inlet end 21. The outlet end 23 of the ejector pipe 2 is connected and fixed to the burner head 3 through a flange 24.

[0022] The insect-proof net device 4 includes a fixing member 5 and a partition net 6. The fixing member 5 is provided with an air inlet hole 51 corresponding to the damper 20. The partition net 6 covers the air inlet hole 51. The partition net 6 and the fixing member 5 are fixedly connected (for example, welded). The fixing member 5 is detachably fixed to the outer peripheral surface of the air inlet end 21. The partition net 6 blocks the damper 20. The partition net 6 is provided with a mesh 61. The mesh 61 is connected to the inner cavity of the air inlet end 21 through the damper 20.

[0023] In this embodiment, the fixing member 5 is an arc-shaped plate, and at least the periphery of the air inlet hole 51 of the fixing member 5 is in contact with the outer peripheral surface of the air inlet end 21. A positioning hole 52 is provided on the fixing member 5 away from the periphery of the air inlet hole 51, and a stud 7 and a nut 8 are provided on the periphery of the air inlet end 21 and the damper 20, respectively. The stud 7 is welded on the outer peripheral surface of the air inlet end 21, and the nut of the fixing member 5 corresponding to the stud 7 is provided with an upwardly convex avoidance position 53, and the positioning hole 52 of the fixing member 5 is sleeved on the stud 7, and the air inlet hole 51 is aligned with the damper 20, and the nut 8 and the stud 7 are threadedly connected to form the detachable connection.

[0024] Example 2, see Figure 4 and Figure 5 As shown, the difference between it and the first embodiment is that the fixing member 5 is a cylinder, a positioning hole 52 is provided on the fixing member 5, screw holes 9 and screws 10 are provided around the damper 20 on the outer circumferential surface of the air inlet end 21, the fixing member 5 is sleeved outside the air inlet end 21, the positioning hole 52 and the screw hole 9 are aligned, the air inlet hole 51 is aligned with the damper 20, and the screw 10 passes through the positioning hole 52 and the screw hole 9 to be threadedly connected to form the detachable connection.

Claims

1. An insect-proof gas appliance, comprising an ejector tube, one end of which is an air inlet end connected to a nozzle, and an air door is provided on the outer peripheral surface of the air inlet end. Its characteristics are: It also includes an insect-proof net device, which is detachably fixed to the outer peripheral surface of the air inlet end, the insect-proof net device blocks the air door, and the mesh holes of the insect-proof net device are connected to the inner cavity of the air inlet end through the air door.

2. The insect-proof gas appliance according to claim 1, Its characteristics are: The insect-proof net device comprises a fixing piece and a partition net, the fixing piece is provided with an air inlet hole corresponding to the air door, the partition net covers the air inlet hole, the partition net and the fixing piece are fixedly connected, and the partition net is provided with the mesh hole.

3. The insect-proof gas appliance according to claim 2, Its characteristics are: The fixing piece is provided with a positioning hole, and studs and nuts are provided around the damper on the outer peripheral surface of the air inlet end. The positioning hole of the fixing piece is sleeved on the stud, and the nut and the stud are threadedly connected to form the detachable connection, and the air inlet hole is aligned with the damper.

4. The insect-proof gas appliance according to claim 2, Its characteristics are: The fixing piece is provided with a positioning hole, and screw holes and screws are provided around the damper on the outer peripheral surface of the air inlet end. The positioning hole and the screw holes are aligned, the air inlet hole is aligned with the damper, and the screws pass through the positioning hole and the screw holes for threaded connection to form the detachable connection.

5. The insect-proof gas appliance according to claim 2 or 3, Its characteristics are: At least the periphery of the air inlet hole of the fixing member is in contact with the outer peripheral surface of the air inlet end.

6. The insect-proof gas appliance according to claim 5, Its characteristics are: The fixing member is an arc-shaped plate or a cylinder.

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