Safety lock mechanism of gas tank cover

Abstract

The utility model discloses a safety lock mechanism of a gas tank cover, and belongs to the technical field of portable gas cookers. Comprising a switch slide fastener connected with a switch button and a limiting plate arranged at an operation hole in a gas tank cover, the limiting plate is provided with a limiting hole matched and locked with the switch slide fastener, and the switch button is movably arranged at the operation hole. The utility model has the beneficial effects that the closed gas tank cover is locked through the matching of the switch slide fastener and the limiting hole, so that the accidental opening of the cylinder cover is avoided, and the use safety of the gas tank is improved; the gas tank cover can be opened by pressing the switch button, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to a safety lock mechanism for a gas cylinder lid, belonging to the technical field of portable gas stoves. Background Technology

[0002] Most existing portable gas stove products, such as Figure 1 As shown, the gas canister cap adopts a flip-top design, which facilitates the opening and closing of the gas canister cap. However, this convenience also has drawbacks: the gas canister cap is prone to accidental opening during use, transportation, or placement of the portable gas stove, increasing the risk of accidental damage to the gas canister cap; if the gas canister cap is accidentally opened during the use of the portable gas stove, the gas canister will not receive effective heat insulation protection, posing a safety hazard, as the gas canister cap is very hot, increasing the risk of burns to the user; children can more easily remove the gas canister from the gas canister cavity, which can easily lead to unpredictable risks. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a safety lock mechanism for gas cylinder lids that ensures convenient operation while preventing accidental opening of the gas cylinder lid, thereby improving safety.

[0004] The technical solution of this utility model is: a safety lock mechanism for a gas cylinder lid, including a switch slide connected to a switch button, and a limiting plate provided at the operating hole on the gas cylinder lid. The limiting plate is provided with a limiting hole that cooperates with the switch slide for locking, and the switch button is movably provided at the operating hole.

[0005] The switch button is connected to the connecting frame, which is rotatably connected to the base. A reset torsion spring is provided between the connecting frame and the base, and the base is fixed to the bottom of the gas tank cavity.

[0006] The connecting frame and the base are rotatably connected by a pin, and a reset torsion spring is sleeved on the pin.

[0007] The bottom of the connecting frame is provided with a connecting limit rod, and the limit rod can be detachably contacted with the limiting end face of the connecting frame.

[0008] The limiting plate is inclinedly disposed at the bottom of the operating hole, and the connection between the limiting plate and the edge of the operating hole is located at the lower end of the limiting plate.

[0009] The switch latch has an inclined surface that slides with the limiting plate and a locking surface that engages with the limiting hole. The locking surface is parallel to the surface of the switch button.

[0010] The base is fixed to the bottom of the gas tank cavity with screws.

[0011] The beneficial effects of this utility model are: by cooperating with the switch sliding buckle and the limiting hole, the closed gas cylinder cover is locked, preventing the cylinder cover from being opened accidentally and improving the safety of gas cylinder use; the gas cylinder cover can be opened by pressing the switch button, which is convenient to operate. Attached Figure Description

[0012] Figure 1 Here is a structural diagram of an existing portable gas stove;

[0013] Figure 2 This is a diagram showing the application state of this utility model;

[0014] Figure 3 This is a structural diagram of the present invention;

[0015] Figure 4 for Figure 3 Exploded view;

[0016] Figure 5 This diagram shows the contact state between the switch latch and the limit plate before the gas tank lid is closed.

[0017] Figure 6 for Figure 5 Side view;

[0018] Figure 7 This is a diagram showing the gas tank lid in the locked state.

[0019] Figure 8 This diagram shows the state where the gas cylinder cap can be unlocked by pressing.

[0020] The following labels are used in the attached diagram: 1. Switch button, 2. Switch slide, 3. Operating hole, 4. Limit plate, 5. Gas tank cover, 6. Connecting bracket, 7. Base, 8. Reset torsion spring, 9. Pin, 10. Limit rod, 11. Screw, 12. Limit hole. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 2-8 Further explanation of this utility model:

[0022] A safety lock mechanism for a gas cylinder lid includes a switch slide 2 connected to a switch button 1, and a limiting plate 4 inclinedly disposed at the bottom of an operating hole 3 on the gas cylinder lid 5. The limiting plate 4 extends into the gas cylinder cavity, and the connection point between the limiting plate 4 and the operating hole 3 is located at the lower end of the limiting plate 4. The limiting plate 4 is provided with a limiting hole 12 that engages with the switch slide 2 for locking. The switch button is movably disposed at the operating hole 3. The switch button 1 is connected to a connecting frame 6, and the connecting frame 6 is rotatably connected to a base 7 via a pin 9. A return torsion spring 8 is provided between the connecting frame 6 and the base 7, sleeved on the pin 9. The two ends of the return torsion spring 8 contact the connecting frame 6 and the base 7 respectively. The base 7 is fixed to the bottom of the gas cylinder cavity by screws 11. The bottom of the connecting frame 6 is provided with a connecting limiting rod 10. The limiting rod 10 and the limiting end face of the connecting frame 6 can be separably contacted. Under the action of the reset torsion spring 8, the limiting rod 10 contacts the limiting end face of the connecting frame 6. When the switch button 1 is pressed, the switch button 1 rotates around the pin shaft, and the reset torsion spring 8 is further compressed. When the switch button 1 is released, it rotates under the action of the reset torsion spring 8. At the same time, under the limiting action of the limiting rod 10, the switch button 1 resets and stops at the operating hole 3.

[0023] The switch latch 2 has an inclined surface that slides with the limiting plate 4 and a locking surface that engages with the limiting hole 12. The locking surface is parallel to the surface of the switch button 1. Figure 5 As shown, during the counterclockwise rotation to close the gas cylinder cover 5, the high end of the limiting plate 4 first contacts the inclined surface of the switch slide 2 and pushes the switch slide 2 and the switch button 1 to rotate slightly. The high end of the limiting plate 4 slides relative to the inclined surface. When the switch slide 2 moves relative to the limiting plate 4 to the limiting hole 12, under the action of the reset torsion spring 8, the switch slide 2 engages in the limiting hole 12, and the locking surface cooperates with the inner edge of the limiting hole 12 to lock the gas cylinder cover 5. The locked state is as shown. Figure 7 As shown.

[0024] When it is necessary to open the gas tank cover 5, press the switch button 1 through the operating hole 3. The switch button 1 causes the switch slide 2 to rotate counterclockwise, and the switch slide 2 separates from the limit hole 12. Figure 8 As shown, the gas tank cover 5 can be opened by turning it clockwise.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A safety lock mechanism for a gas cylinder cap, characterized by, It includes switch slide buckle (2) connected with switch button (1), and limiting plate (4) arranged at operation hole (3) of gas tank cover (5), limiting hole (12) for cooperating with switch slide buckle (2) is arranged on limiting plate (4), and switch button is movably arranged at operation hole (3).

2. The safety lock mechanism for a gas cylinder cap according to claim 1, wherein The switch button (1) is connected with the connecting frame (6), the connecting frame (6) is rotatably connected with the base (7), and the reset torsional spring (8) is arranged between the connecting frame (6) and the base (7), and the base (7) is fixed on the bottom of the gas tank cavity.

3. The safety lock mechanism for a gas cylinder cap according to claim 2, wherein The connecting frame (6) and the base (7) are rotatably connected through the pin shaft (9), and the reset torsional spring (8) is sleeved on the pin shaft (9).

4. The safety lock mechanism for cylinder cap according to claim 2, wherein The connecting frame (6) is provided with a connecting limiting rod (10) at the bottom, and the limiting rod (10) is in separable contact with the limiting end surface of the connecting frame (6).

5. The safety lock mechanism for cylinder cap according to claim 1, wherein The limiting plate (4) is arranged at the bottom of the operation hole (3) in an inclined manner, and the connecting part of the limiting plate (4) and the operation hole (3) is located at the low end of the limiting plate (4).

6. The safety lock mechanism for a gas cylinder cap according to claim 5, wherein The switch slide buckle (2) is provided with a slope surface for sliding cooperation with the limiting plate (4), and a locking surface for cooperation with the limiting hole (12), and the locking surface is parallel to the surface of the switch button (1).

7. The safety lock mechanism for cylinder cap according to claim 2, wherein The base (7) is fixed on the bottom of the gas tank cavity through the screw (11).

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