A liquefied gas cylinder and its mouth structure

Abstract

The present invention discloses a liquefied gas cylinder and its mouth structure, which relates to the technical field of liquefied gas cylinders and includes a cylinder body and a protective structure. The protective structure includes an annular protective frame sleeved on the outer wall of the cylinder body, a protective plate hingedly connected to the interior of each hinged notch, and a torsion spring is provided at the hinge. An extension block is fixed to the side wall of the bottom end of the protective plate. A push rod extending to the bottom of the annular protective frame is slidably inserted into the interior of an L-shaped adjustment groove. A push rod is provided with a push inclined surface at one end of the toggle rod near the push rod. An inverted L-shaped rod that slides through a matching groove is vertically fixed to the upper end of the toggle rod. The bottom end surface of the extension block is provided with an inverted L-shaped groove that is engaged with the inverted L-shaped rod. The present invention provides a liquefied gas cylinder and its mouth structure. The torsional potential energy of the torsion spring can be used to flip the protective plate around the hinge position toward the side away from the cylinder body, so that the protective plate contacts the ground before the cylinder body, thereby playing a buffering role and preventing the cylinder body from collided with the carriage floor due to tipping, thereby reducing the great risk of explosion caused by tipping.

Description

Technical Field

[0001] The invention relates to the technical field of liquefied gas cylinders, in particular to a liquefied gas cylinder and a bottle mouth structure thereof. Background Art

[0002] A liquefied gas cylinder is a cylinder for storing gas. The cylinder wall thickness is about 2.5 mm, the internal pressure is 0.5 to 1.2 MPa, and the safe service life is 15 years. It needs to be inspected regularly every four years to ensure gas safety. A liquefied gas intelligent cylinder transportation device with publication number CN208731053U is provided. By setting a lifting device and a shock-absorbing device, the lifting device makes the application range of the utility model wider, and the shock-absorbing device improves safety. However, liquefied gas cylinders are used as storage devices in the offline sales process of fuel. Liquefied gas cylinders will be transported over short distances. During transportation, they are prone to bumps, which may cause the liquefied gas cylinders to tip over. Since the transportation of liquefied gas cylinders may easily cause the pressure inside the cylinder to change, that is, the gas pressure becomes higher, the liquefied gas cylinders are under the action of the high pressure inside the cylinder. Once they tip over, there is a great risk of explosion, which poses a great safety hazard to people's lives and property. Therefore, a liquefied gas cylinder and its bottle mouth structure are designed here to solve the above problems. Summary of the Invention

[0003] The object of the present invention is to provide a liquefied gas cylinder and a bottle mouth structure thereof to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions: a liquefied gas cylinder, comprising a bottle body and a protective structure, wherein the upper end of the bottle body is connected to a bottle body joint, and a handle is welded to the upper end of the bottle body and is sleeved on the outer periphery of the bottle body joint.

[0005] The protective structure includes an annular protective frame sleeved on the outer wall of the bottle body, and a plurality of hinged notches are provided on the upper end surface of the annular protective frame. A protective plate is hinged inside each hinged notch, and a torsion spring is provided at the hinge. By utilizing the torsional potential energy of the torsion spring, the protective plate can be flipped around the hinge position to the side away from the bottle body, and used as a buffer between the bottle body and the ground.

[0006] The bottom side wall of the protective plate is fixed with an extension block, the bottom end of the annular protective frame is provided with a plurality of L-shaped adjustment slots, the bottom end surface of the hinged notch is provided with a matching slot connected to the L-shaped adjustment slot, a push rod extending to the bottom of the annular protective frame is slidably inserted into the L-shaped adjustment slot, the inner side wall of the L-shaped adjustment slot is provided with a guide slot, the top side wall of the push rod is fixed with a guide block slidably engaged with the guide slot, a toggle rod vertically distributed with the push rod is provided for horizontal sliding inside the L-shaped adjustment slot, and a pushing inclined surface is provided at one end of the toggle rod close to the push rod, and the toggle rod The upper end of the inverted L-shaped rod is vertically fixed with an inverted L-shaped rod that slides through the matching groove, and the bottom end surface of the extension block is provided with an inverted L-shaped groove that is engaged with the inverted L-shaped rod. When the push rod slides upward along the inside of the L-shaped adjustment groove, it can slide relative to the pushing inclined surface of the toggle rod, so that the toggle rod slides horizontally along the inside of the L-shaped adjustment groove, and at the same time drives the inverted L-shaped rod to slide horizontally along the inside of the inverted L-shaped groove of the extension block. The corner structure of the inverted L-shaped rod is no longer stuck at the corner of the inverted L-shaped groove, so that the torsional potential energy of the torsion spring can be used to flip the protective plate together with the extension block to the side away from the bottle body.

[0007] A buffer groove is horizontally opened on the inner wall of the L-shaped adjustment groove, which is slidably plugged into one end of the toggle rod, and a spring 1 is provided inside the buffer groove, which can push the toggle rod toward one end of the push rod in real time. The spring 1 is used to ensure that the toggle rod is pushed toward one end of the push rod in real time, so that the pushing inclined surface is in real time contact with the top end of the push rod.

[0008] In a further embodiment, the handle is formed by winding a steel plate into a C-shaped structure, and two operating holes are symmetrically provided on the handle;

[0009] The top side walls of the two operating holes in the handle are both fixed with a columnar protrusion, and the diameter of the protrusion is greater than the thickness of the handle wall.

[0010] In a further embodiment, a supporting bottom frame is rotatably provided at the bottom end of the bottle body, and no less than two supporting bottom plates are fixed to the bottom end surface of the supporting bottom frame, with a gap being left between two adjacent supporting bottom plates.

[0011] In a further embodiment, a clamping plate is fixedly provided on the upper end surface of the annular protective frame, and the side wall of the clamping plate is against the outer wall of the bottle body, and threaded steel rings are connected between the outer walls of several clamping plates through external threads.

[0012] The bottom end of the bottle body is an inverted frustum-shaped structure, and a collar that is sleeved with the inverted frustum-shaped structure of the bottle body is fixed on the bottom end surface of the annular protective frame.

[0013] In a further embodiment, a linkage rod is fixedly connected between the side walls of two adjacent push rods, and the linkage rod can be used to link all extension blocks and separate from the inverted L-shaped rod, so that all protective plates are flipped and expanded around the hinge to form an inverted umbrella-shaped buffer support frame to prevent the bottle body from tipping over and colliding with the car floor, thereby reducing the great risk of explosion due to tipping.

[0014] A bottle mouth structure for a liquefied gas cylinder, the liquefied gas cylinder comprising an L-shaped bottle mouth joint, the L-shaped bottle mouth joint being slidably plugged into the outer wall of the bottle body joint, a rubber seat being fixed to the upper end of the bottle body joint, the outer wall of the rubber seat being slidably fitted with the inner wall of the L-shaped bottle mouth joint, a suspension rod being vertically fixed to the top of the inner wall of the L-shaped bottle mouth joint, a rubber sealing block of a truncated cone structure being fixed to the bottom end of the suspension rod, a through hole with a smaller top and a larger bottom being plugged into the rubber sealing block being provided in the axial direction of the rubber seat, the L-shaped bottle mouth joint being slid down along the outer wall of the bottle body joint, the suspension rod being used to drive the rubber sealing block to separate from the through hole opening position of the rubber seat, so that the gas in the bottle body joint is transported to the L-shaped bottle mouth joint, and the L-shaped bottle mouth joint is connected to the connecting pipe of the gas stove to realize gas supply.

[0015] Several vertical rods passing through the rubber seat are fixed to the top of the bottle body joint, and elastic sheets are fixed to the top of the side walls of the vertical rods, and rollers are rotatably provided at the ends of the elastic sheets. The outer wall of the suspension rod is sleeved with an elliptical steel ring located above the several rollers. The top of the elliptical steel ring is fixedly sleeved with the outer wall of the suspension rod, and the bottom end is provided with a through hole slidably sleeved with the suspension rod. When the L-shaped bottle mouth joint slides downward along the outer wall of the bottle body joint, the suspension rod drives the elliptical steel ring to rest against the outer walls of the several rollers. As the suspension rod continues to press downward, the elliptical steel ring itself produces compression deformation, and all rollers can rotate to reduce the friction resistance between the outer wall of the elliptical steel ring. At the same time, the elastic sheets corresponding to the rollers produce bending deformation until the elliptical steel ring completely passes over all rollers and is placed under the roller. In this way, the rubber sealing block can be separated from the through-hole opening position of the rubber seat to ensure normal gas output.

[0016] In a further embodiment, an extension protrusion is fixed to the bottom end of the inner wall of the L-shaped bottle mouth joint, and an anti-slip groove for sliding engagement with the extension protrusion is formed on the outer wall of the bottle body joint.

[0017] In a further embodiment, an external connecting piece is also included, and the external connecting piece includes a threaded connecting sleeve and an external tube. Two T-blocks are fixed to the end of the threaded connecting sleeve, and a T-shaped matching groove is opened on the side wall of the end of the external tube for sliding engagement with the T-block. The threaded connecting sleeve is rotatably plugged into the L-shaped bottle mouth joint and the end of the L-shaped bottle mouth joint is against the side wall of the end of the external tube. The outer wall of the external tube is connected to a plurality of staggered external joints, and the outer wall of the external joint is rotatably sleeved with a threaded docking cap through an external thread. The end of the gas guide pipe of the gas stove is fitted and aligned with the end of the external joint. The gas guide pipe and the external joint can be firmly and seamlessly connected by aligning the threaded docking cap. The gas flowing through the external tube is supplied to each stove through each external joint for combustion, thereby meeting the need for a single bottle to store gas and supply gas to multiple stoves.

[0018] A rubber sealing disk is slidably inserted into the inner wall of the external tube, and an operating rod is fixedly inserted into the side wall of the rubber sealing disk. The operating rod slides through the end of the external tube away from the threaded connection sleeve and extends to the outside of the external tube. The rubber sealing disk facilitates the control of the number of external connectors for outputting gas, thereby facilitating gas supply according to the usage needs of the stove.

[0019] A limit rack is fixedly provided on the outer wall of the operating rod, and a limit matching block is fixed on the end of the external tube away from the threaded connecting sleeve. The limit matching block is provided with a clamping notch that is clamped with the limit rack on one side wall relative to the operating rod. When the operating rod pulls the rubber sealing disk to adjust to the required position, in order to avoid the position of the rubber sealing disk changing due to the change of the operating rod position, which affects the normal air supply operation of the external joint, the operating rod is manually rotated so that the limit rack is rotated and clamped into the clamping notch of the limit matching block, thereby preventing the operating rod from being arbitrarily adjusted in the axial direction.

[0020] In a further embodiment, the opening at one end of the external tube near the threaded connection sleeve is a truncated cone structure, and a rubber sealing block 2 with a truncated cone structure is slidably provided in the opening, and a horizontal plate is fixed to the side wall of the rubber sealing block 2, and two T-shaped compensation grooves are provided on the side wall of the horizontal plate, and a T-shaped compensation block is slidably clamped in the T-shaped compensation groove, and an arc-shaped stainless steel paddle is fixed to the end of the T-shaped compensation block, and the end of the arc-shaped stainless steel paddle is fixedly connected to the inner wall of the external tube, and by utilizing the elastic potential energy of the arc-shaped stainless steel paddle, the two T-shaped compensation blocks slide along the side of their respective corresponding T-shaped compensation grooves that are close to each other, and while sliding, the horizontal plate and the rubber sealing block 2 can be pushed toward the side away from the external tube opening, so that the rubber sealing block 2 is away from the external tube opening in a natural state, ensuring normal gas supply.

[0021] In a further embodiment, the outer wall of the operating rod is sleeved with a second spring located inside the external tube, and the side wall of the rubber sealing disk is fixed with a T-shaped push block facing the horizontal plate. The elastic potential energy of the second spring is used to slide the rubber sealing disk along the inner wall of the external tube toward the side close to the second rubber sealing block, and the T-shaped push block is used to slide synchronously with the rubber sealing disk, so that the T-shaped push block is against the side wall of the horizontal plate and drives the horizontal plate to move synchronously until the second rubber sealing block seals the opening of the conical structure of the external tube, blocking the air supply from the L-shaped bottle mouth joint, thereby avoiding air leakage due to human error resulting in the stove not being closed in time.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention relates to a liquefied gas cylinder and a bottle mouth structure thereof. The bottle body serves as a gas storage container to meet the user's needs for gas transportation and combustion. In addition, in the process of transporting the bottle body to the user's destination, the bottle body is prone to tipping over due to bumps in the car. During the tipping over of the bottle body, the bottom end surface of the push rod at the corresponding position touches the ground and pushes upward in the opposite direction, so that the top end of the push rod and the pushing inclined surface of the toggle rod slide relative to each other, and the toggle rod drives the inverted L-shaped rod to move horizontally, so that a large gap is generated between the top end of the inverted L-shaped rod and the corner of the inverted L-shaped groove of the extension block. By utilizing the torsional potential energy of the torsion spring, the protective plate can be flipped around the hinge position to the side away from the bottle body, and touch the ground before the bottle body, thereby playing a buffering role, avoiding the bottle body from colliding with the car floor when it tips over, and reducing the great explosion risk due to tipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an exploded view of the main structure of the present invention;

[0025] Figure 2 It is a cross-sectional view of the bottle body joint and the L-shaped bottle mouth joint of the present invention;

[0026] Figure 3 This is a schematic diagram of the handle structure of the present invention;

[0027] Figure 4 A partial cross-sectional view of the protective structure of the present invention;

[0028] Figure 5 It is a schematic diagram of the external component structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the supporting bottom frame and two supporting bottom plates of the present invention;

[0030] Figure 7 A cross-sectional view of the structure of the external connector of the present invention;

[0031] Figure 8 It is a partial cross-sectional view of the external component of the present invention.

[0032] In the figure: 1. Bottle body; 2. Handle; 3. L-shaped bottle mouth joint; 4. Threaded connecting sleeve; 5. External tube; 6. Operating lever; 7. Support base plate; 8. Threaded steel ring; 9. Clamping plate; 10. Protective plate; 11. Annular protective frame; 12. Push rod; 13. Linkage rod; 14. Hanging rod; 15. Oval steel ring; 16. Elastic sheet; 17. Vertical rod; 18. Rubber sealing block 1; 19. Bottle body joint; 20. Bump; 21. Extension block; 22. Inverted L-shaped rod; 23. Toggle rod; 24. Support base frame; 25. Limit matching block; 26. Threaded docking cap; 27. External joint; 28. Limit rack; 29. ​​Arc-shaped stainless steel pick; 30. Rubber sealing block 2; 31. Horizontal plate; 32. T-shaped push block; 33. Rubber sealing disk; 34. T-shaped compensation block. DETAILED DESCRIPTION

[0033] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0034] Example 1

[0035] See also Figure 1 and Figure 4 This embodiment provides a liquefied gas cylinder, including a bottle body 1 and a protective structure. The upper end of the bottle body 1 is connected to a bottle body connector 19, and the bottle body connector 19 is used to connect an external gas stove connecting pipe to meet the user's gas transportation and combustion needs.

[0036] A handle 2 is welded to the upper end of the bottle body 1 and is sleeved on the outer periphery of the bottle body joint 19 . The handle 2 is used to apply force to move the bottle body 1 .

[0037] The protective structure includes an annular protective frame 11 which is sleeved on the outer wall of the bottle body 1. A number of hinged notches are provided on the upper end surface of the annular protective frame 11. A protective plate 10 is hinged inside each hinged notch and a torsion spring is provided at the hinge. The annular protective frame 11 is sleeved on the outer wall of the bottle body 1. By utilizing the torsional potential energy of the torsion spring, the protective plate 10 can be flipped around the hinge position to the side away from the bottle body 1, and used as a buffer between the bottle body 1 and the ground.

[0038] The bottom side wall of the protective plate 10 is fixed with an extension block 21, the bottom end of the annular protective frame 11 is provided with a plurality of L-shaped adjustment grooves, the bottom end surface of the hinged notch is provided with a matching groove connected to the L-shaped adjustment groove, the L-shaped adjustment groove is slidably inserted with a push rod 12 extending to the bottom of the annular protective frame 11, the inner side wall of the L-shaped adjustment groove is provided with a guide groove, the top side wall of the push rod 12 is fixed with a guide block slidingly engaged with the guide groove, the L-shaped adjustment groove is provided with a toggle rod 23 vertically distributed with the push rod 12 for horizontal sliding inside, and the toggle rod 23 is provided for horizontal sliding inside the L-shaped adjustment groove. The end of the movable rod 23 close to the push rod 12 is provided with a pushing inclined surface, and the upper end of the toggle rod 23 is vertically fixed with an inverted L-shaped rod 22 that slides through the matching groove. The bottom end surface of the extension block 21 is provided with an inverted L-shaped groove that is engaged with the inverted L-shaped rod 22. When the push rod 12 slides upward along the inside of the L-shaped adjustment groove, it can slide relative to the pushing inclined surface of the toggle rod 23, so that the toggle rod 23 will slide horizontally along the inside of the L-shaped adjustment groove, and at the same time drive the inverted L-shaped rod 22 to slide horizontally along the inside of the inverted L-shaped groove of the extension block 21. Figure 4 It can be seen that the horizontal space in the inverted L-shaped groove can meet the needs of the inverted L-shaped rod 22 to move horizontally, so that the corner structure of the inverted L-shaped rod 22 is no longer stuck at the corner of the inverted L-shaped groove, so that the torsional potential energy of the torsion spring can be used to flip the protective plate 10 together with the extension block 21 to the side away from the bottle body 1.

[0039] The inner wall of the L-shaped adjustment groove is horizontally provided with a buffer groove which is slidably plugged into one end of the toggle rod 23, and a spring 1 is provided inside the buffer groove which can push the toggle rod 23 toward one end of the push rod 12 in real time. The spring 1 is used to ensure that the toggle rod 23 is pushed toward one end of the push rod 12 in real time, so that the pushing inclined surface is in real time contact with the top end of the push rod 12. At the same time, it can also ensure that the corner structure of the inverted L-shaped rod 22 is stuck at the corner of the inverted L-shaped groove, restricting the protective plate 10 and the extension block 21 from flipping, that is, making the protective plate 10 distributed parallel to the bottle body 1 and not taking up space.

[0040] The bottle body 1 is used as a gas storage container. During the process of transporting the bottle body 1 to the user's destination, the pressure in the bottle body 1 is easily changed, that is, the air pressure increases, and the bottle body 1 is easily tilted due to bumps in the car, which poses a great risk of explosion. Therefore, during the tilting process of the bottle body 1, the bottom end surface of the push rod 12 at the corresponding position touches the ground and pushes upward in the opposite direction, so that the top end of the push rod 12 and the pushing inclined surface of the toggle rod 23 slide relative to each other, and the toggle rod 23 drives the inverted L-shaped rod 22 to move horizontally, so that a large gap is generated between the top end of the inverted L-shaped rod 22 and the corner of the inverted L-shaped groove of the extension block 21, so that the extension block 21 loses its limit. The torsional potential energy of the torsion spring can flip the protective plate 10 and the extension block 21 around the hinge position to the side away from the bottle body 1, and touch the ground before the bottle body 1, thereby playing a buffering role, avoiding the bottle body 1 from tilting and colliding with the car floor, and reducing the great risk of explosion due to tilting.

[0041] A linkage rod 13 is fixedly connected between the side walls of two adjacent push rods 12, and the linkage rod 13 is used to connect all the push rods 12. When the bottom end of any push rod 12 touches the ground and pushes upward, the linkage rod 13 drives the other push rods 12 to be pushed upward synchronously, so that all the extension blocks 21 can lose their limits. By utilizing the torsional potential energy of the torsion spring, all the protective plates 10 can be flipped and opened around their respective hinged positions to form an inverted umbrella-shaped buffer support frame to prevent the bottle body 1 from tipping over and colliding with the car floor, thereby reducing the great risk of explosion due to tipping.

[0042] A bottle mouth structure for a liquefied gas cylinder includes an L-shaped bottle mouth joint 3, which is slidably inserted into the outer wall of a bottle body joint 19. A rubber seat is fixed to the upper end of the bottle body joint 19. The outer wall of the rubber seat slides and fits with the inner wall of the L-shaped bottle mouth joint 3. The rubber seat is used to prevent the gas in the bottle body 1 from leaking through the gap due to the existence of a gap between the outer wall of the bottle body joint 19 and the inner wall of the L-shaped bottle mouth joint 3, which not only causes gas waste but also poses a very serious safety hazard.

[0043] Example 2

[0044] See also Figure 1-2 , further improvements were made on the basis of Example 1:

[0045] A suspension rod 14 is vertically fixed to the top of the inner wall of the L-shaped bottle mouth joint 3, and a truncated cone-shaped rubber sealing block 18 is fixed to the bottom end of the suspension rod 14. A through hole with a small top and a large bottom that is plugged into the rubber sealing block 18 is opened in the axial direction of the rubber seat. The L-shaped bottle mouth joint 3 is slid down along the outer wall of the bottle body joint 19, and the suspension rod 14 is used to drive the rubber sealing block 18 to separate from the through hole opening position of the rubber seat, so that the gas in the bottle body joint 19 is transported to the L-shaped bottle mouth joint 3, and the L-shaped bottle mouth joint 3 is connected to the connecting pipe of the gas stove to realize gas supply.

[0046] An extension protrusion is fixed to the bottom end of the inner wall of the L-shaped bottle mouth joint 3, and an anti-slip groove is provided on the outer wall of the bottle body joint 19 for sliding engagement with the extension protrusion. The L-shaped bottle mouth joint 3 slides up and down along the outer wall of the bottle body joint 19 and penetrates through it, and the extension protrusion slides up and down synchronously along the inside of the anti-slip groove to prevent the L-shaped bottle mouth joint 3 from separating from the bottle body joint 19 and causing gas leakage.

[0047] The traditional method of using a manual valve to control whether the gas in the bottle body 1 is outputted has the advantage of adopting the above method that there is no need to rotate the valve to control whether the gas is outputted like a traditional gas valve. Instead, the L-shaped bottle mouth joint 3 is controlled to slide up and down along the outer wall of the bottle body joint 19 to adjust whether the rubber sealing block 18 is separated from the through-hole opening of the rubber seat to control whether the gas is outputted. The operation is fast and convenient, and the gas can be packaged without leakage.

[0048] The top of the bottle joint 19 is fixed with several vertical rods 17 that pass through the rubber seat, and the top of the side wall of the vertical rod 17 is fixed with elastic sheets 16, and the end of the elastic sheet 16 is rotatably provided with a roller, and the outer wall of the suspension rod 14 is sleeved with an elliptical steel ring 15 located above the several rollers. The top of the elliptical steel ring 15 is fixedly sleeved with the outer wall of the suspension rod 14, and the bottom end is provided with a through hole that is slidably sleeved with the suspension rod 14. When the L-shaped bottle mouth joint 3 slides downward along the outer wall of the bottle joint 19, the suspension rod 14 drives the elliptical steel ring 15 to rest on the outer walls of several rollers. As the suspension rod 14 continues to press down, the elliptical steel ring 15 itself produces compression deformation, and all rollers can rotate to reduce the friction resistance between the outer wall of the elliptical steel ring 15, and at the same time, the elastic sheet 16 corresponding to the roller produces bending deformation until the elliptical steel ring 15 completely passes over all rollers and is placed under the roller, so that the rubber sealing block 18 can be separated from the through-hole opening position of the rubber seat to ensure normal gas output.

[0049] On the contrary, the L-shaped bottle mouth joint 3 is slid upward along the outer wall of the bottle body joint 19, and the suspension rod 14 drives the elliptical steel ring 15 to rest against the outer walls of several rollers. As the suspension rod 14 continues to be lifted, the elliptical steel ring 15 itself is compressed and deformed, and all the rollers can rotate to reduce the friction resistance between them and the outer wall of the elliptical steel ring 15. At the same time, the elastic sheet 16 corresponding to the roller is bent and deformed until the elliptical steel ring 15 completely passes over all the rollers and is placed above the rollers. In this way, the rubber sealing block 18 can be stuck in the opening position of the through hole of the rubber seat again to achieve sealing and avoid air leakage when not in use.

[0050] Example 3

[0051] See also Figure 1 、 Figure 2 、 Figure 5 、 Figure 7 and Figure 8 , further improvements were made on the basis of Example 2:

[0052] The bottle mouth structure also includes an external connecting part, which includes a threaded connection sleeve 4 and an external pipe 5. The end of the threaded connection sleeve 4 is fixed with two T-blocks, and the side wall of the end of the external pipe 5 is provided with a T-shaped matching groove that is slidably engaged with the T-block. The threaded connection sleeve 4 is rotatably plugged into the L-shaped bottle mouth joint 3, and the end of the L-shaped bottle mouth joint 3 is against the side wall of the end of the external pipe 5. The gas in the bottle body 1 is introduced into the L-shaped bottle mouth joint 3 through the bottle body joint 19, and is directly introduced into the external pipe 5 after flowing through the L-shaped bottle mouth joint 3. The outer wall of the external pipe 5 is connected with several staggered external joints 27, and the outer wall of the external joint 27 is rotatably sleeved with a threaded docking cap 26 through an external thread. The end of the gas guide pipe of the gas stove is aligned with the end of the external joint 27, and the gas guide pipe and the external joint 27 can be firmly and seamlessly connected by aligning the threaded docking cap 26. The gas flowing through the external pipe 5 is supplied to each stove for combustion through each external joint 27, meeting the need of a single bottle body 1 to store gas for multiple stoves.

[0053] A rubber sealing disc 33 is slidably inserted into the inner wall of the external tube 5, and an operating rod 6 is fixedly inserted into the side wall of the rubber sealing disc 33. The operating rod 6 slides through the end of the external tube 5 away from the threaded connection sleeve 4 and extends to the outside of the external tube 5. Pulling the operating rod 6 by hand can drive the rubber sealing disc 33 to slide synchronously along the inside of the external tube 5 to adjust the sealing position. Scale lines are set on the outer wall of the operating rod 6, and the moving length of the rubber sealing disc 33 is known by referring to the scale lines. Since several external joints 27 are staggered, when the rubber sealing disc 33 passes over the connection position of the external joint 27, gas can be supplied to the external joint 27 along the external tube 5. This makes it easy to control the number of external joints 27 that output gas, thereby facilitating gas supply according to the usage needs of the stove.

[0054] A limit rack 28 is fixedly provided on the outer wall of the operating rod 6, and a limit matching block 25 is fixed on the end of the external tube 5 away from the threaded connection sleeve 4. The limit matching block 25 is provided with a clamping notch that is engaged with the limit rack 28 on the side wall relative to the operating rod 6. When the operating rod 6 pulls the rubber sealing disk 33 to adjust to the desired position, in order to avoid the position change of the operating rod 6 causing the position change of the rubber sealing disk 33, which affects the normal air supply operation of the external joint 27, the operating rod 6 is rotated by hand so that the limit rack 28 is rotated and engaged with the clamping notch of the limit matching block 25, thereby preventing the operating rod 6 from being arbitrarily adjusted in the axial direction.

[0055] The opening at one end of the external tube 5 near the threaded connection sleeve 4 is a truncated cone structure, and a truncated cone-shaped rubber sealing block 2 30 is slidably provided in the opening, and a horizontal plate 31 is fixed to the side wall of the rubber sealing block 2 30, and two T-shaped compensation grooves are provided on the side wall of the horizontal plate 31, and a T-shaped compensation block 34 is slidably clamped in the T-shaped compensation groove, and an arc-shaped stainless steel paddle 29 is fixed to the end of the T-shaped compensation block 34, and the end of the arc-shaped stainless steel paddle 29 is fixedly connected to the inner wall of the external tube 5. By utilizing the elastic potential energy of the arc-shaped stainless steel paddle 29, the two T-shaped compensation blocks 34 slide along the side of their respective corresponding T-shaped compensation grooves that are close to each other, and while sliding, the horizontal plate 31 and the rubber sealing block 2 30 can be pushed to the side away from the opening of the external tube 5, so that the rubber sealing block 2 30 is away from the opening of the external tube 5 in a natural state, ensuring normal gas supply.

[0056] The outer wall of the operating rod 6 is sleeved with a spring 2 located inside the external tube 5, and a T-shaped push block 32 is fixed to the side wall of the rubber sealing disk 33 opposite to the horizontal plate 31. When the stove does not need gas supply, the operating rod 6 is rotated in the opposite direction, so that the limit rack 28 and the engaging notch of the limit matching block 25 are staggered. The elastic potential energy of the spring 2 is used to slide the rubber sealing disk 33 along the inner wall of the external tube 5 toward the side close to the rubber sealing block 2 30, and the T-shaped push block 32 is used to slide synchronously with the rubber sealing disk 33, so that the T-shaped push block 32 is against the side wall of the horizontal plate 31 and drives the horizontal plate 31 to move synchronously until the rubber sealing block 2 30 seals the opening of the frustum-shaped structure of the external tube 5, blocking the gas supply from the L-shaped bottle mouth joint 3, and avoiding the phenomenon of gas leakage caused by human error resulting in the stove not being closed in time.

[0057] Example 4

[0058] See also Figure 1 、 Figure 3 and Figure 6 , further improvements were made on the basis of Example 1:

[0059] The handle 2 is wound into a C-shaped structure by a steel plate. Two operating holes are symmetrically provided on the handle 2. The operating holes are provided to facilitate the workers to insert their hands into the operating holes to lift the bottle body 1 for transportation.

[0060] The top side walls of the two operating holes of the handle 2 are fixed with a columnar protrusion 20, and the diameter of the protrusion 20 is larger than the wall thickness of the handle 2. The protrusion 20 is provided to prevent the contact area between the upper side wall of the operating hole and the hand from being too small, which causes excessive pressure on the hand and causes pain.

[0061] The bottom end of the bottle body 1 is rotatably provided with a supporting bottom frame 24, and the bottom end surface of the supporting bottom frame 24 is fixed with no less than two supporting bottom plates 7, and a gap is left between two adjacent supporting bottom plates 7. The supporting bottom frame 24 is rotated to adjust the position where the supporting bottom plates 7 contact the ground. The gap between the two adjacent supporting bottom plates 7 is used to avoid potholes and uneven positions, thereby ensuring that the bottle body 1 is placed in a relatively flat position.

[0062] A clamping plate 9 is fixedly provided on the upper end face of the annular protective frame 11, and the side wall of the clamping plate 9 is against the outer wall of the bottle body 1. A threaded steel ring 8 is connected between the outer walls of several clamping plates 9 through an external thread. When the annular protective frame 11 is sleeved on the outer wall of the bottle body 1, the threaded steel ring 8 is sleeved on the outer wall of the clamping plate 9, so that the clamping plate 9 and the bottle body 1 can be stably engaged.

[0063] The bottom end of the bottle body 1 is an inverted frustum-shaped structure, and a ring is fixed to the bottom end of the annular protective frame 11, which is sleeved with the inverted frustum-shaped structure of the bottle body 1. The ring is sleeved on the outer wall of the inverted frustum-shaped structure of the bottle body 1 to prevent the annular protective frame 11 from sliding upward along the outside of the bottle body 1, causing the push rod 12 to be unable to contact the ground during the tipping process of the bottle body 1, affecting the deployment operation of the protective plate 10.

[0064] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A liquefied gas cylinder, comprising a cylinder body (1) and a protective structure, wherein the upper end of the cylinder body (1) is connected to a cylinder body connector (19), and a handle (2) is welded to the upper end of the cylinder body (1) and is sleeved on the outer periphery of the cylinder body connector (19), characterized in that: The protective structure comprises an annular protective frame (11) sleeved on the outer wall of the bottle body (1), the upper end surface of the annular protective frame (11) is provided with a plurality of hinged notches, a protective plate (10) is hingedly connected inside each hinged notch, and a torsion spring is provided at the hinged position; The bottom side wall of the protective plate (10) is fixed with an extension block (21), the bottom end of the annular protective frame (11) is provided with a plurality of L-shaped adjustment grooves, the bottom end surface of the hinge notch is provided with a matching groove connected to the L-shaped adjustment groove, the L-shaped adjustment groove is slidably inserted with a push rod (12) extending to the bottom of the annular protective frame (11), the inner side wall of the L-shaped adjustment groove is provided with a guide groove, the top side wall of the push rod (12) is fixed with a guide block slidably engaged with the guide groove, and the inner side wall of the L-shaped adjustment groove is provided with a matching groove connected to the push rod (12) for horizontal sliding. ) a vertically distributed toggle rod (23), and an end of the toggle rod (23) close to the push rod (12) is provided with a pushing inclined surface, an upper end of the toggle rod (23) is vertically fixed with an inverted L-shaped rod (22) that slides through the matching groove, the bottom end surface of the extension block (21) is provided with an inverted L-shaped groove that is engaged with the inverted L-shaped rod (22), the inner wall of the L-shaped adjustment groove is horizontally provided with a buffer groove that is slidably plugged with one end of the toggle rod (23), and a spring is provided inside the buffer groove that can push the toggle rod (23) toward the end close to the push rod (12) in real time.

2. A liquefied gas cylinder according to claim 1, characterized in that: The handle (2) is formed by winding a steel plate into a C-shaped structure, and two operating holes are symmetrically provided on the handle (2); The top side walls of the two operating holes of the handle (2) are both fixedly provided with a columnar protrusion (20), and the diameter of the protrusion (20) is greater than the wall thickness of the handle (2).

3. The liquefied gas cylinder according to claim 1, characterized in that: The bottom end of the bottle body (1) is rotatably provided with a supporting bottom frame (24), and the bottom end surface of the supporting bottom frame (24) is fixed with no less than two supporting bottom plates (7), with a gap left between two adjacent supporting bottom plates (7).

4. The liquefied gas cylinder according to claim 1, characterized in that: A clamping plate (9) is fixedly provided on the upper end surface of the annular protective frame (11), and the side wall of the clamping plate (9) abuts against the outer wall of the bottle body (1); a threaded steel ring (8) is connected between the outer walls of a plurality of clamping plates (9) via an external thread; The bottom end of the bottle body (1) is an inverted frustum-shaped structure, and a collar that is sleeved with the inverted frustum-shaped structure of the bottle body (1) is fixed to the bottom end surface of the annular protective frame (11).

5. The liquefied gas cylinder according to claim 1, characterized in that: A linkage rod (13) is fixedly connected between the side walls of two adjacent push rods (12).

6. A mouth structure of a liquefied gas cylinder, comprising an L-shaped bottle mouth joint (3) according to any one of claims 1 to 5, characterized in that: The L-shaped bottle mouth joint (3) is slidably plugged into the outer wall of the bottle body joint (19); a rubber seat is fixed to the upper end of the bottle body joint (19); the outer wall of the rubber seat is slidably fitted with the inner wall of the L-shaped bottle mouth joint (3); a suspension rod (14) is vertically fixed to the top of the inner wall of the L-shaped bottle mouth joint (3); a rubber sealing block (18) with a truncated cone structure is fixed to the bottom end of the suspension rod (14); a through hole with a smaller upper portion and a larger lower portion is provided in the axial direction of the rubber seat for plugging into the rubber sealing block (18); The top of the bottle body joint (19) is fixed with a plurality of vertical rods (17) that pass through the rubber seat, and the top of the side wall of the vertical rod (17) is fixed with an elastic sheet (16), and the end of the elastic sheet (16) is rotatably provided with a roller, and the outer wall of the suspension rod (14) is sleeved with an elliptical steel ring (15) located above the plurality of rollers, the top of the elliptical steel ring (15) is fixedly sleeved with the outer wall of the suspension rod (14), and the bottom end is provided with a through hole for sliding sleeved with the suspension rod (14).

7. The nozzle structure of a liquefied gas cylinder according to claim 6, characterized in that: An extension protrusion is fixed to the bottom end of the inner wall of the L-shaped bottle mouth joint (3), and an anti-slip groove for sliding engagement with the extension protrusion is provided on the outer wall of the bottle body joint (19).

8. The mouth structure of a liquefied gas cylinder according to claim 6, further comprising an external connecting piece, characterized in that: The external connection member comprises a threaded connection sleeve (4) and an external tube (5); two T-shaped blocks are fixed to the end of the threaded connection sleeve (4); a T-shaped matching groove for sliding engagement with the T-shaped blocks is provided on the side wall of the end of the external tube (5); the threaded connection sleeve (4) is rotatably plugged into the L-shaped bottle mouth joint (3), and the end of the L-shaped bottle mouth joint (3) abuts against the side wall of the end of the external tube (5); the outer wall of the external tube (5) is connected to a plurality of staggered external joints (27), and the outer wall of the external joint (27) is rotatably sleeved with a threaded butt cap (26) through an external thread; A rubber sealing disk (33) is slidably inserted into the inner wall of the external tube (5), and an operating rod (6) is fixedly inserted into the side wall of the rubber sealing disk (33). The operating rod (6) slides through the end of the external tube (5) away from the threaded connection sleeve (4) and then extends to the outside of the external tube (5).

9. The nozzle structure of a liquefied gas cylinder according to claim 8, characterized in that: The opening at one end of the internal portion of the external tube (5) close to the threaded connection sleeve (4) is a truncated cone-shaped structure, and a second rubber sealing block (30) of a truncated cone-shaped structure is slidably provided in the opening, a transverse plate (31) is fixed to the side wall of the second rubber sealing block (30), two T-shaped compensation grooves are provided on the side wall of the transverse plate (31), and a T-shaped compensation block (34) is slidably engaged in the T-shaped compensation groove, an arc-shaped stainless steel pick (29) is fixed to the end of the T-shaped compensation block (34), and the end of the arc-shaped stainless steel pick (29) is fixedly connected to the inner wall of the external tube (5).

10. The mouth structure of a liquefied gas cylinder according to claim 9, characterized in that: The outer wall of the operating rod (6) is sleeved with a second spring located inside the external tube (5), and the side wall of the rubber sealing disk (33) is fixed with a T-shaped push block (32) facing the horizontal plate (31); A limiting rack (28) is fixedly provided on the outer wall of the operating rod (6); a limiting matching block (25) is fixedly provided on one end of the external tube (5) away from the threaded connection sleeve (4); and a clamping notch for clamping with the limiting rack (28) is provided on a side wall of the operating rod (6).

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