Casing of portable gas stove

Abstract

The utility model discloses a casing of a portable gas stove, which comprises a casing, the casing is provided with an insertion hole, and a gas bottle is inserted into the casing from the axial direction of the insertion hole through the insertion hole. Compared with a traditional portable gas stove, the shell of the portable gas stove does not need to open and close a cover, and is simpler in structure and lower in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to a cartridge stove, in particular to a shell structure of the cartridge stove. Background Art

[0002] At present, the cartridge furnace includes a shell, an open opening is provided on the shell, an opening and closing cover is provided on the shell corresponding to the open opening, the opening and closing cover and the shell are connected by a hinge, the opening and closing cover is closed to cover the open opening, when the opening and closing cover is opened, the gas cylinder is put into the shell from the open opening along the radial direction of the gas cylinder, and then the gas cylinder is moved along the axial direction of the gas cylinder to connect with the valve body in the shell, and the shell must be provided with a receiving cavity larger than the volume of the gas cylinder corresponding to the gas cylinder, resulting in a large volume of the shell. Moreover, the overall structure of the shell is complex, the number of parts is large, and the production cost is high. Utility Model Content

[0003] The utility model aims to provide a cartridge furnace shell with low production cost.

[0004] The purpose of the utility model is achieved in this way.

[0005] A cartridge furnace shell comprises a shell, wherein the shell is provided with a plug hole, and a plug hole gas supply bottle is inserted into the shell from the axial direction of the plug hole.

[0006] Compared with the traditional cartridge furnace shell, the shell of the utility model does not need to open or close the cover, has a simpler structure and lower manufacturing cost.

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

[0008] In a more specific solution, a control valve is installed in the housing, the air inlet end of the control valve faces the insertion hole, and the gas cylinder is inserted into the housing through the insertion hole axially from the insertion hole and connected to the air inlet end. The gas cylinder is easy to connect.

[0009] In a more specific solution, the plug hole is arranged on the side of the shell, and a receiving cavity is formed in the shell corresponding to the plug hole, so that the gas cylinder can be conveniently put into and out of the shell through the plug hole.

[0010] In a more specific solution, the control valve is provided with a control end extending out of the housing, and the control end is placed on the side of the housing opposite to the insertion hole. The overall structure is reasonably designed and small in size.

[0011] In a more specific solution, the tail of the gas cylinder is placed in the socket so that the end surface of the tail of the gas cylinder is flush with or does not protrude from the outer surface of the shell. The gas cylinder and the gas inlet end of the valve body are hidden when connected to avoid collision with the gas cylinder to cause damage to the gas inlet end of the control valve.

[0012] In a more specific solution, the axis of the jack coincides with the axis of the air inlet end, which facilitates the connection between the gas cylinder and the control valve.

[0013] In a more specific solution, the jack is a round hole, which is easy to manufacture.

[0014] In a more specific solution, a bottle pushing device is provided in the housing, and the bottle pushing device includes a fixed sleeve, a bottle pushing spring and a guide rail. The guide rail is arranged along the direction of the gas cylinder entering and exiting the jack, the fixed sleeve is slidably arranged on the guide rail, the fixed sleeve is located between the jack and the air inlet end, one end of the bottle pushing spring is connected and fixed to the fixed sleeve, and the other end of the bottle pushing spring is connected and fixed to the housing or the guide rail. The elastic force of the bottle pushing spring makes the fixed sleeve tend to move toward the jack, the head of the gas cylinder passes through the jack and is sleeved on the fixed sleeve, the gas cylinder moves inward to drive the fixed sleeve to move and compress the bottle pushing spring until the head of the gas cylinder is connected to the air inlet end, when the head of the gas cylinder is separated from the air inlet end, the bottle pushing spring pushes at least the tail of the gas cylinder out of the jack through the fixed sleeve. When disassembling the gas cylinder, the bottle pushing device pushes out the gas cylinder, which is convenient for taking out the gas cylinder from the jack.

[0015] The beneficial effects of the utility model are as follows.

[0016] (1) Compared with the traditional cartridge furnace, the shell of the utility model does not need to open and close the cover, the number of shell parts is reduced, the structure is simpler, and the manufacturing cost is lower. The overall structure design is reasonable and the volume is small.

[0017] (2) The jack is easy to manufacture, that is, the shell can be easily formed in one piece, further reducing costs.

[0018] (3) The socket is aligned with the air inlet end of the control valve, making it easy to connect the gas cylinder. The accommodating cavity makes it convenient for the gas cylinder to enter and exit the shell through the socket.

[0019] (4) The gas cylinder is fully inserted into the socket, and the gas cylinder and the gas inlet end of the valve body are hidden when connected to avoid collision with the gas cylinder and damage to the gas inlet end of the control valve. When removing the gas cylinder, the cylinder pusher device pushes the gas cylinder out, making it easy to remove the gas cylinder from the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of embodiment 1.

[0021] Figure 2 It is a structural schematic diagram of embodiment 1 (from another perspective).

[0022] Figure 3 This is a schematic diagram of the decomposed structure of Example 1.

[0023] Figure 4 A schematic structural diagram of the bottle pushing device, control valve, over-position protection device and gas cylinder fixing device in embodiment 1.

[0024] Figure 5 for Figure 4 Schematic diagram of the side structure.

[0025] Figure 6 This is a schematic diagram of the exploded structure of the control valve and the gas cylinder fixing device in Example 1.

[0026] Figure 7 This is a schematic diagram of the exploded structure of the control valve and the gas cylinder fixing device in Example 1 (from another perspective).

[0027] Figure 8 It is a schematic diagram of the cross-sectional structure of the control valve and the gas cylinder fixing device in the first embodiment (the gas cylinder is pulled out, i.e., the second position).

[0028] Fig. 9 It is a schematic cross-sectional structure diagram of the connection between the over-position protection device and the gas cylinder fixing device in Example 1 (the gas cylinder is pulled out, i.e., the second position).

[0029] Fig.10 Schematic diagram of the cross-sectional structure of the control valve and the gas cylinder fixing device in Example 1 (gas cylinder inserted state, i.e., the first position).

[0030] Fig.11 It is a schematic cross-sectional structure diagram of the connection between the over-position protection device and the gas cylinder fixing device in Example 1 (gas cylinder inserted state, i.e., the first position). DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0032] Example 1, see Figure 1-11 As shown, a gas stove comprises a shell 1, a control valve 2, a gas burner head assembly 3, a bottle pushing device 5, an over-position protection device 4 and a gas bottle fixing device 10.

[0033] The control valve 2 is fixed in the housing 1, and the control valve 2 is provided with a control end 21 extending from the housing 1. A socket 11 is provided on the side of the housing 1 corresponding to the gas cylinder, and the air inlet end 23 of the control valve 2 faces the socket 11. The gas cylinder is inserted into the housing 1 axially through the socket 11 and connected to the air inlet end 23. An accommodating cavity 12 is formed in the housing 1 corresponding to the socket 11. In this embodiment, the socket 11 is arranged on the side opposite to the control end 21. The control end 21 is a knob, and the control end 21 rotates counterclockwise to realize ignition and adjust the firepower from small to large. The socket 11 is a round hole, that is, the housing 1 is integrally stamped.

[0034] The bottle pushing device 5 is arranged in the shell 1, and the bottle pushing device 5 includes a fixed sleeve 51, a bottle pushing spring 52 and a guide rail 53. The guide rail 53 is arranged along the direction of the gas cylinder inlet and outlet socket 11. The fixed sleeve 51 is slidably arranged on the guide rail 53. The fixed sleeve 51 is located between the socket 11 and the air inlet end 23. One end of the bottle pushing spring 52 is connected and fixed to the fixed sleeve 51, and the other end of the bottle pushing spring 52 is connected and fixed to the shell 1 or the guide rail 53. The elastic force of the bottle pushing spring 52 makes the fixed sleeve 51 tend to move toward the socket 11.

[0035] In this embodiment, there are two guide rails 53, which are respectively placed on both sides of the accommodating cavity 12, are parallel to each other, and both ends of the two guide rails 53 are fixed on the housing 1. A bottle pushing spring 52 is sleeved on each guide rail 53, and each of the two sides of the fixed sleeve 51 is sleeved on a guide rail 53, the inner end of the bottle pushing spring 52 abuts against the housing 1, and the outer end of the bottle pushing spring 52 abuts against the fixed sleeve 51, and the elastic force of the bottle pushing spring 52 makes the fixed sleeve 51 abut against the housing 1.

[0036] When installing the gas cylinder, the gas cylinder is inserted into the housing 1 from the axial direction of the insertion hole 11, the head of the gas cylinder passes through the insertion hole 11 and is sleeved on the fixing sleeve 51, and the gas cylinder moves inward to drive the fixing sleeve 51 to move and compress the bottle pushing spring 52 until the head of the gas cylinder is connected to the gas inlet end 23. Preferably, the tail of the gas cylinder is placed in the insertion hole 11, and the end surface of the tail of the gas cylinder is flush with or lower than the outer surface of the housing 1, that is, the gas cylinder is completely placed in the housing 1.

[0037] When the head of the gas cylinder is separated from the gas inlet end 23, the bottle pushing spring 52 pushes the gas cylinder to pop out through the insertion hole 11 through the fixing sleeve 51, that is, at least the tail of the gas cylinder pops out from the insertion hole 11, and the user can take out the gas cylinder through the tail of the gas cylinder.

[0038] The over-position protection device 4 is arranged on the shell 1. The over-position protection device 4 is provided with a trigger end 40 on the side of the gas burner assembly 3 close to the control valve 2. The action end 45 of the over-position protection device 4 triggers the unlocking end 90 of the gas cylinder fixing device 10. Specifically, the over-position protection device 4 includes a touch piece 41, a seesaw 42 and a tension spring 43. The bottom of the touch piece 41 is provided with a limit hole 44 along the vertical moving direction. The limit screw 46 passes through the limit hole 44 and is connected to the shell 1. The touch piece 41 is vertically limited and moved. The top of the touch piece 41 passes through the top surface of the shell 1 and is higher than the top of the gas burner assembly 3 to form the trigger end 40. The middle part of the seesaw 42 is rotatably connected in the shell 1. The bottom of the touch piece 41 is linked to one end of the seesaw 42. The tension spring 43 is connected to the other end of the seesaw 42. The tension spring 43 makes the touch piece 41 tend to move upward. In this embodiment, a first through hole 13 is provided on the top of the shell 1, and the shell 1 corresponds to the furnace frame 31 of the gas burner head assembly 3. The furnace frame 31 is provided with a positioning frame 32, and the positioning frame 32 is provided with a second through hole 33. The top of the trigger member 41 passes through the first through hole 13 and the second through hole 33 to form the trigger end 40.

[0039] When an oversized cooking utensil is placed on the gas burner assembly 3, or the cooking utensil is improperly placed, the cooking utensil presses down the trigger end 40, causing the trigger 41 to move downward and press down one end of the seesaw 42, and the other end of the seesaw 42 overcomes the tension of the tension spring 43 to trigger the unlocking end 90 of the gas cylinder fixing device 10, causing the gas cylinder fixing device 10 to release the gas cylinder, that is, the gas cylinder is separated from the gas inlet end 23. In this way, the gas stove is forced to stop working. When the cooking utensil is removed, the elastic force of the tension spring 43 resets the seesaw 42 and the trigger 41.

[0040] The gas cylinder fixing device 10 is arranged on the control valve 2. When the gas cylinder is inserted into the gas inlet end 23 of the control valve 2, the gas cylinder fixing device 10 locks the gas cylinder and the gas inlet end 23. The gas cylinder fixing device 10 is provided with an unlocking end 90 for releasing the lock between the gas cylinder and the gas inlet end 23. Specifically, the gas cylinder fixing device 10 comprises a movable sleeve 6, at least one clamping block 7, a linkage device 8 and a locking device 9. The movable sleeve 6 is movably arranged on the gas inlet end 23 of the control valve 2 along the plugging and unplugging direction of the gas cylinder. The clamping block 7 and the linkage device 8 move with the movable sleeve 6 and have a first position and a second position. When the movable sleeve 6 moves to the first position, the clamping block 7 extends out of the outer periphery of the movable sleeve 6 to fix the gas cylinder, and the locking portion of the linkage device 8 moves toward the locking device 9, and the locking device 9 locks the locking portion. The linkage device 8 has a tendency to move to the second position. The external force causes the locking device 9 to release the locking portion. The linkage device 8 moves in the opposite direction to move the movable sleeve 6 to the second position. The clamping block 7 retracts into the outer periphery of the movable sleeve 6 to release the gas cylinder.

[0041] In this embodiment, three clamping blocks 7 are evenly arranged along the outer periphery of the air inlet end 23, the inner end of the clamping block 7 is limitedly connected to the movable sleeve 6, the movable sleeve 6 is provided with a groove 61 corresponding to the outer end of the clamping block 7, and the inner and outer sides of the other end of the clamping block 7 are respectively provided with a first protrusion 71 and a second protrusion 72, the positions of the first protrusion 71 and the second protrusion 72 are staggered, the first protrusion 71 is closer to the direction of the gas cylinder relative to the second protrusion 72, in the first position, the first protrusion 71 and the outer periphery of the air inlet end 23 are abutted, and the second protrusion 72 protrudes from the outer periphery of the movable sleeve 6 from the groove 61, and in the second position, the first protrusion 71 is placed outside the end surface of the air inlet end 23, and the second protrusion 72 is placed in the groove 61.

[0042] The linkage device 8 includes a U-shaped linkage frame 81 and a first torsion spring 80. The two ends of the open side of the U-shaped linkage frame 81 are provided with hook grooves 82. The directions of the hook grooves 82 at the two ends are arranged 180° rotationally symmetrically. The hook grooves 82 constitute the locking part of the linkage device 8. The closed side of the U-shaped linkage frame 81 is sleeved on the movable sleeve 6. The U-shaped linkage frame 81 and the movable sleeve 6 are limitedly connected to move synchronously. One end of the first torsion spring 80 abuts against the control valve 2, and the other end of the first torsion spring 80 is connected and fixed to the U-shaped linkage frame 81. The elastic force of the first torsion spring 80 causes the U-shaped linkage frame 81 to move to the first position, that is, the gas cylinder is pulled out. At this time, the first protrusion 71 moves to the outside of the end surface of the inlet end 23, and the second protrusion 72 does not protrude from the outer periphery of the movable sleeve 6. The elastic force of the first torsion spring 80 is released, and the first torsion spring 80 limits the U-shaped linkage frame 81 from continuing to move outward.

[0043] The locking device 9 includes a first locking plate 91, a second locking plate 92, a third locking plate 93 and a second torsion spring 94. The first locking plate 91, the second torsion spring 94, the second locking plate 92 and the third locking plate 93 are sequentially inserted into the control end 21 of the control valve 2, the first locking plate 91 is fixedly connected to the control valve 2, the first locking plate 91 is provided with a positioning hole 910 for the locking portion to pass through, the second torsion spring 94 has three connecting ends, the first connecting end 941 of the second torsion spring 94 is limitedly connected to the first locking plate 91, the second connecting end 942 of the second torsion spring 94 is limitedly connected to the second locking plate 92, the third connecting end 943 of the second torsion spring 94 passes through the central hollow part 920 of the second locking plate 92 and is limitedly connected to the third locking plate 93, and the second torsion spring 94 drives the second locking plate 92 and the third locking plate 93 to have the inertia of counterclockwise rotation.

[0044] Notches 921 are provided on the outer periphery of the second locking piece 92 corresponding to the positioning holes 910, and the unlocking end 90 extends toward the action end 45 of the over-position protection device 4. A U-shaped groove 922 is formed between the unlocking end 90 and the second locking piece 92, and the U-shaped groove 922 opens downward. When in the first position, the elastic force of the second torsion spring 94 causes the notch 921 and the hook groove 82 to limit each other.

[0045] The third locking piece 93 extends a stopper 931 to one side of the U-shaped groove 922, and the control end 21 extends a shift block 22 into the U-shaped groove 922. The shift block 22 is placed under the stopper 931. The elastic force of the second torsion spring 94 causes the third locking piece 93 to rotate counterclockwise until the stopper 931 presses down the shift block 22, so that the control end 21 is in the fire-off state. The elastic force of the second torsion spring 94 disappears, and the elastic force of the second torsion spring 94 causes the third locking piece 93 to rotate counterclockwise until the notch 921 and the end of the U-shaped linkage frame 81 are butted against each other.

[0046] When the gas cylinder is inserted into the gas inlet end 23, the gas cylinder pushes the movable sleeve 6 and the U-shaped linkage frame 81 to move from the second position to the first position. The movable sleeve 6 drives the clamp 7 to move, so that the first protrusion 71 of the clamp 7 moves to the outer periphery of the gas inlet end 23, so that the second protrusion 72 of the clamp 7 protrudes from the slot 61 to the outer periphery of the gas inlet end 23, and the second protrusion 72 is inserted into the inner ring groove of the gas cylinder to fix the gas cylinder. At the same time, the U-shaped linkage frame 81 moves to compress the first torsion spring 80, and the locking part of the U-shaped linkage frame 81 moves toward the locking device 9, that is, the hook groove 82 passes through the positioning hole 910, and the elastic force of the second torsion spring 94 causes the notch 921 to be inserted into the hook groove 82. The hook groove 82 and the notch 921 are mutually limited, that is, the U-shaped linkage frame 81 remains stationary, so as to keep the gas cylinder fixed.

[0047] When the action end 45 of the over-position protection device 4 moves upward to touch the unlocking end 90, that is, the third locking piece 93 rotates clockwise and compresses the second torsion spring 94, the notch 921 and the disengagement hook groove 82, the elastic force of the first torsion spring 80 causes the movable sleeve 6 and the U-shaped linkage frame 81 to move synchronously from the first position to the second position, and the movable sleeve 6 drives the clamping block 7 to move, so that the first protrusion 71 of the clamping block 7 moves to the outside of the end surface of the air inlet end 23, so that the second protrusion 72 of the clamping block 7 retracts from the slot 61 into the outer periphery of the air inlet end 23, that is, the second protrusion 72 is separated from the inner ring groove of the gas cylinder, and the moving inertia of the movable sleeve 6 cooperates to make the gas cylinder disengage from the air inlet end 23 in an ejecting manner. The moving inertia of the movable sleeve 6 plus the thrust of the bottle pushing device 5 realizes the action of the gas cylinder popping out of the socket 11.

[0048] Or the user rotates the control end 21 clockwise to the off position, and the control end 21 continues to rotate clockwise, and the shift block 22 of the control end 21 first drives the stopper 931 to move upward, that is, the third locking piece 93 rotates clockwise, and the control end 21 continues to rotate so that the shift block 22 drives the second locking piece 92 to rotate clockwise through the U-shaped groove 922, and the notch 921 and the hook groove 82 are separated, and the elastic force of the first torsion spring 80 causes the movable sleeve 6 and the U-shaped linkage frame 81 to move synchronously from the first position to the second position, and the movable sleeve 6 drives the clamping block 7 to move, so that the first protrusion 71 of the clamping block 7 moves to the outside of the end surface of the air inlet end 23, and the second protrusion 72 of the clamping block 7 retracts from the slot 61 into the outer periphery of the air inlet end 23, that is, the second protrusion 72 is separated from the inner ring groove of the gas cylinder, and the moving inertia of the movable sleeve 6 causes the gas cylinder to be separated from the air inlet end 23 in a pop-up manner. The third locking piece 93 and the second locking piece 92 rotate clockwise to compress the second torsion spring 94. After releasing the hand, the second torsion spring 94 drives the third locking piece 93 and the second locking piece 92 to rotate counterclockwise, that is, the third locking piece 93 and the second locking piece 92 are reset, wherein after the third locking piece 93 is reset, the second torsion spring 94 continues to drive the third locking piece 93 to rotate, so that the control end 21 is reset to the off position. The angle difference between the rotation of the third locking piece 93 and the second locking piece 92 prevents the control end 21 from actively ejecting the gas cylinder by a slight clockwise rotation.

[0049] In this embodiment, a safety protection device 24 (i.e., overpressure protection and / or overpressure protection) is provided in the control valve 2, and the external end 25 of the safety protection device 24 is also connected to the unlocking end 90, that is, when the safety protection device 24 detects that the air pressure in the control valve 2 exceeds the preset value, the external end 25 pushes the unlocking end 90 upward to separate the gas cylinder from the air inlet end 23 of the control valve 2. The cassette furnace of the utility model has multiple safety protections and is safe and reliable to use.

Claims

1. A cartridge furnace housing, comprising a housing (1), characterized in that: The housing (1) is provided with an insertion hole (11), and the insertion hole (11) allows the gas bottle to be inserted into the housing (1) from the axial direction of the insertion hole (11); A bottle pushing device (5) is provided in the housing (1), the bottle pushing device (5) comprising a fixing sleeve (51), a bottle pushing spring (52) and a guide rail (53), the guide rail (53) being arranged along the direction of the gas cylinder inlet and outlet plug hole (11), the fixing sleeve (51) being slidably arranged on the guide rail (53), the fixing sleeve (51) being located between the plug hole (11) and the gas inlet end (23), one end of the bottle pushing spring (52) being connected and fixed to the fixing sleeve (51), and the other end of the bottle pushing spring (52) being connected to the housing (1) or the guide rail ( The fixing sleeve (51) is connected and fixed with the gas cylinder head (53), and the elastic force of the bottle-pushing spring (52) causes the fixing sleeve (51) to tend to move toward the insertion hole (11). The head of the gas cylinder passes through the insertion hole (11) and is sleeved on the fixing sleeve (51). The gas cylinder moves inward, driving the fixing sleeve (51) to move and compress the bottle-pushing spring (52) until the head of the gas cylinder and the gas inlet end (23) are connected. When the head of the gas cylinder and the gas inlet end (23) are separated, the bottle-pushing spring (52) pushes at least the tail of the gas cylinder through the fixing sleeve (51) to pop out of the insertion hole (11).

2. The cartridge furnace housing according to claim 1, characterized in that: A control valve (2) is installed in the housing (1), an air inlet end (23) of the control valve (2) faces the insertion hole (11), and a gas cylinder is inserted into the housing (1) axially through the insertion hole (11) to be connected with the air inlet end (23).

3. The cartridge furnace housing according to claim 2, characterized in that: The plug hole (11) is arranged on the side of the shell (1), and an accommodating cavity (12) is formed in the shell (1) corresponding to the plug hole (11).

4. The cartridge furnace housing according to claim 3, characterized in that: The control valve (2) is provided with a control end (21) extending out of the housing (1), and the control end (21) is disposed on a side of the housing (1) opposite to the insertion hole (11).

5. A cartridge furnace housing according to claim 1, characterized in that: The tail of the gas cylinder is placed in the insertion hole (11) so that the end surface of the tail of the gas cylinder is flush with or does not protrude from the outer surface of the shell (1).

6. The cartridge furnace housing according to claim 2, characterized in that: The axis of the jack (11) coincides with the axis of the air inlet end (23).

7. The cartridge furnace housing according to any one of claims 1 to 6, characterized in that: The jack (11) is a round hole.

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