A liquefied gas cylinder cart for construction sites
The combination structure of sleeve, horizontal plate, C-type elastic retaining ring and limiting plate solves the problem of inconvenience in tipping and loading/unloading liquefied gas cylinders during transportation, and realizes the stability and efficient loading and unloading of liquefied gas cylinders.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI PROVINCE NATURAL GAS DEV CO LTD
- Filing Date
- 2025-10-15
- Publication Date
- 2026-08-04
AI Technical Summary
Existing liquefied gas cylinder trolleys are prone to tipping over when turning or on bumpy roads, which can lead to leaks or explosions. They are also inconvenient to secure during loading and unloading, affecting safety and efficiency.
The system employs a combination structure of sleeve, horizontal plate, C-type elastic retaining ring, and limiting plate. The sleeve achieves a ring-like limiting effect on the upper part of the liquefied gas cylinder, while the C-type elastic retaining ring achieves a ring-like limiting effect on the bottom. The screw adjusts the clamping force, simplifying loading and unloading operations.
It ensures the stability and safety of liquefied gas cylinders during transportation, simplifies the loading and unloading process, and improves loading and unloading efficiency.
Smart Images
Figure CN224589158U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of liquefied gas cylinder carts, specifically a liquefied gas cylinder cart for use on construction sites. Background Technology
[0002] Liquefied gas cylinder trolleys are specialized tools used on construction sites for the safe transport of liquefied gas cylinders. Their core function is to solve the problems of stability, safety, and efficiency during the cylinder handling process through structural design.
[0003] For example, an existing Chinese patent (CN202071854U) discloses a special trolley for liquefied gas cylinders, including two wheels with an axle between them. The middle of the axle is connected to the lower end of a load-bearing rod. The lower part of the load-bearing rod has a semi-circular lower support ring opening outwards, and the upper part has a semi-circular upper support ring opening outwards. A handle is located at the upper end of the load-bearing rod, and a foot pedal is also provided on the axle, located on one side of the load-bearing rod. This patent has the following advantages: the trolley is easy to operate, can be pushed or pulled, and can be used to pick up and place gas cylinders without lifting them by hand, reducing labor intensity and improving work efficiency; when using this trolley to transport liquefied gas cylinders, the cylinders are accurately placed in the filling scale without the need for secondary adjustments; the manufacturing cost is low; and it is safe to use and meets the requirements of the working conditions.
[0004] Traditional trolleys lack a wraparound support, making gas cylinders prone to tipping over when turning or bumping, which could lead to leaks or explosions. When a wraparound support is used, clamps are often used to fix the gas cylinders to the trolley. However, the clamps make it more difficult to disassemble and reassemble the gas cylinders, which affects the efficiency of loading and unloading. Summary of the Invention
[0005] The purpose of this utility model is to provide a liquefied gas cylinder cart for construction sites to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a liquefied gas cylinder trolley for construction sites, comprising: a base plate and uprights; uprights are provided on both sides of the top of the base plate; a trapezoidal bracket is provided on one side of the uprights; a trolley handle is provided at the top of the trapezoidal bracket; an axle is provided at the bottom of the trapezoidal bracket; rubber wheels are provided at both ends of the axle; a sleeve is provided on the outer side of the upper half of the uprights; a side plate is provided on one side of the sleeve; a horizontal plate is provided between the ends of the side plates; a C-shaped elastic retaining ring is provided on the lower half of the uprights; and a fixed arc plate is provided between the uprights.
[0007] Furthermore, a screw is provided in the center of the horizontal plate, and a movable arc plate is provided at one end of the screw. The movable arc plate and the fixed arc plate are arranged opposite to each other.
[0008] Furthermore, a screw handle is fixed to one end of the screw, and a threaded hole that mates with the screw is opened in the center of the horizontal plate. The screw and the movable arc plate are rotatably connected.
[0009] Furthermore, the sleeve and the column are fitted with a clearance, and the length of the horizontal plate is greater than the diameter of the movable arc plate.
[0010] Furthermore, a positioning groove is provided on the top surface of the opening of the C-shaped elastic retaining ring, and a limiting plate is provided above the positioning groove.
[0011] Furthermore, a vertical plate is provided on one side of the top of the base plate, and one end of the limiting plate is rotatably connected to the top of one side of the vertical plate. A clamping plate is provided on the other side of the top of the base plate, and one end of the limiting plate can be clamped inside the clamping plate.
[0012] Furthermore, a slot is provided on one side of the upper half of the card plate, and the slot is interference-fitted with one end of the card plate.
[0013] Furthermore, a limit plate handle is provided on one side of the top of the limit plate.
[0014] Furthermore, right-angled triangular blocks are provided on both sides of the middle part of the limiting plate, with one side of the inclined surface of the right-angled triangular block close to the opening of the C-shaped elastic retaining ring, and the minimum distance between the inclined surfaces of the right-angled triangular blocks is less than the opening width of the C-shaped elastic retaining ring.
[0015] Furthermore, one end of the base plate is provided with a buffer slope for shoveling liquefied gas cylinders.
[0016] Compared with the prior art, the beneficial effects of this utility model are: This utility model, through the design of a sleeve, a horizontal plate, and a C-shaped elastic retaining ring, enables the use of a liquefied gas cylinder trolley. By rotating and opening the limiting plate, the liquefied gas cylinder is scooped into the bottom plate using the buffer slope of the base plate. During the scooping process, the liquefied gas cylinder exerts an outward squeezing force on the C-shaped elastic retaining ring, causing the opening of the C-shaped elastic retaining ring to widen until the bottom of the liquefied gas cylinder is completely inside the C-shaped elastic retaining ring. Then, the limiting plate is rotated until it engages with the retaining plate. At this point, the limiting plate is locked at the opening of the C-shaped elastic retaining ring, sealing it and achieving a wrap-around limiting of the bottom of the liquefied gas cylinder. Then, the sleeve, along with the side plate, the horizontal plate, and its components, is inserted from the top of the column. The side plate and the horizontal plate work together to fix the arc plate, achieving a wrap-around limiting of the upper part of the liquefied gas cylinder. With the screw screwed in, the movable arc plate presses the liquefied gas cylinder tightly, preventing the liquefied gas cylinder from tipping over and falling. The entire device achieves a ring-like limiting effect on the upper part of the liquefied gas cylinder by inserting and removing the sleeve, and a ring-like limiting effect on the bottom of the liquefied gas cylinder by using a C-shaped elastic retaining ring and a limiting plate. This makes the liquefied gas cylinder stable during the pushing process, and makes it convenient to remove and place the sleeve and open and close the limiting plate, which facilitates the loading and unloading of the liquefied gas cylinder.
[0017] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0018] Figure 1 This is a perspective view of the closed state of the limiting plate of a liquefied gas cylinder trolley for construction sites according to this utility model. Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a perspective view of the limit plate of a liquefied gas cylinder trolley for construction sites in the open state, according to the present invention. Figure 4 Figure 3 Enlarged structural diagram at point B; Figure 5 This is a left view of a liquefied gas cylinder trolley for construction sites according to the present invention. Figure 6 This is a front view of a liquefied gas cylinder cart for construction sites according to this utility model; Figure 7 This is a perspective view of a liquefied gas cylinder cart for use on construction sites according to this utility model.
[0019] In the diagram: 1. Base plate; 2. Column; 3. Fixed arc plate; 4. Trapezoidal bracket; 5. Axle; 6. Rubber wheel; 7. Cart handle; 8. Sleeve; 9. Side plate; 10. Horizontal plate; 11. Screw; 12. Movable arc plate; 13. Screw handle; 14. C-type elastic retaining ring; 15. Upright plate; 16. Limiting plate; 17. Triangular block; 18. Limiting plate handle; 19. Clamping plate; 20. Clamping groove; 21. Positioning groove. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Please see Figures 1-7This utility model provides a technical solution: a liquefied gas cylinder trolley for construction sites, comprising: a base plate 1 and uprights 2, uprights 2 welded to both sides of the top of the base plate 1, a trapezoidal bracket 4 welded to one side of the uprights 2, and a trolley handle 7 welded to the top of the trapezoidal bracket 4. The trapezoidal bracket 4 enhances the overall rigidity of the trolley through its trapezoidal structure, preventing deformation during transportation; the trolley handle 7 is welded to the top, making it easy for operators to control the direction of the trolley by applying force, thus improving the flexibility of handling.
[0022] The bottom of the trapezoidal support 4 is welded with a wheel axle 5. Rubber wheels 6 are installed at both ends of the wheel axle 5. The wheel axle 5 and the rubber wheels 6 form a rolling support system. The rubber material can absorb some ground vibration, reduce the impact force of the gas cylinder caused by bumps, and reduce noise, adapting to the complex terrain of the construction site.
[0023] The upper half of the column 2 has a sleeve 8 on its outer side, a side plate 9 on one side of the sleeve 8, and a horizontal plate 10 between the ends of the side plates 9. The sleeve 8 is fitted with the column 2 with a clearance, allowing for quick sliding insertion or removal, achieving rapid assembly and disassembly of the upper and middle part of the cylinder with a wrap-around restraint. The side plate 9 and the horizontal plate 10 form a horizontal support structure, providing a fixed base for the movable arc plate 12, ensuring that the upper and middle parts of the gas cylinder are stably wrapped. The lower half of the column 2 has a C-shaped elastic retaining ring 14, and a fixed arc plate 3 is provided between the columns 2. The C-shaped elastic retaining ring 14 adapts to the bottom diameter of the gas cylinder through its own elastic deformation. When the gas cylinder is scooped in, the opening widens, and after entering, it returns to its original shape, working with the restraining plate 16 to achieve a wrap-around restraint at the bottom, preventing the gas cylinder from slipping out. The fixed arc plate 3 forms a fixed support on the other side of the gas cylinder, dispersing pressure by adhering to the surface of the gas cylinder.
[0024] A screw 11 is located in the center of the horizontal plate 10, and a movable arc plate 12 is located at one end of the screw 11. The movable arc plate 12 is arranged opposite to the fixed arc plate 3. The screw 11 is precisely screwed in through the threaded hole of the horizontal plate 10, driving the movable arc plate 12 to move horizontally. The clamping force can be adjusted according to the diameter of the gas cylinder to ensure that the upper part of the gas cylinder is firmly fixed and to prevent shaking during transportation.
[0025] A screw handle 13 is fixed to one end of the screw 11. A threaded hole that mates with the screw 11 is opened in the center of the horizontal plate 10. The screw 11 and the movable arc plate 12 are rotatably connected. The screw handle 13 provides a rotational force application point, and the operator can quickly adjust the position of the movable arc plate 12 by manual rotation, simplifying the clamping operation and improving loading and unloading efficiency. The rotatable connection between the screw 11 and the movable arc plate 12 allows adjustment of the angle of the movable arc plate 12, ensuring that the movable arc plate 12 fits snugly against the outer wall of the gas cylinder.
[0026] The sleeve 8 and the column 2 are fitted with a clearance fit, and the length of the horizontal plate 10 is greater than the diameter of the movable arc plate 12. The clearance fit ensures that the sleeve 8 slides smoothly and reduces frictional resistance; the length of the horizontal plate 10 is greater than the diameter of the movable arc plate 12 to ensure that the movable arc plate 12 is always within the support range of the horizontal plate 10 when it moves, thus avoiding interference.
[0027] A positioning groove 21 is provided on the top surface of the opening of the C-type elastic retaining ring 14, and a limiting plate 16 is provided above the positioning groove 21. The positioning groove 21 provides a precise docking position for the limiting plate 16, ensuring that the limiting plate 16 is accurately engaged in the opening of the C-type elastic retaining ring 14 when closed, preventing the bottom of the gas cylinder from coming off due to vibration.
[0028] A vertical plate 15 is provided on one side of the top of the base plate 1. One end of a limiting plate 16 is rotatably connected to the top of one side of the vertical plate 15. A locking plate 19 is provided on the other side of the top of the base plate 1, and one end of the limiting plate 16 can be locked inside the locking plate 19. The vertical plate 15 serves as a rotating base for the limiting plate 16, and the rotatable connection enables the limiting plate 16 to open and close quickly, facilitating operation during the loading and unloading of gas cylinders. The locking plate 19 fixes the limiting plate 16 with an interference fit, ensuring that the limiting plate 16 will not open accidentally during transportation, thus improving the reliability of the bottom fixation of the gas cylinder.
[0029] A slot 20 is provided on one side of the upper half of the card plate 19, and the slot 20 and one end of the card plate 19 are interference fit. The slot 20 is designed as an interference fit to increase the friction between the limiting plate 16 and the card plate 19, prevent the limiting plate 16 from loosening due to transportation vibration, and further ensure the safety of the gas cylinder.
[0030] A limit plate handle 18 is provided on one side of the top of the limit plate 16. The limit plate handle 18 provides a force application point, making it easy for operators to quickly open or close the limit plate 16 and improve loading and unloading efficiency.
[0031] Right-angled triangular blocks 17 are provided on both sides of the middle part of the limiting plate 16. The inclined side of the right-angled triangular blocks 17 is close to the opening of the C-type elastic retaining ring 14. The minimum distance between the inclined sides of the right-angled triangular blocks 17 is less than the opening width of the C-type elastic retaining ring 14. The inclined design of the right-angled triangular blocks 17 can guide the opening of the C-type elastic retaining ring 14 to retract when the limiting plate 16 is closed, ensuring that the limiting plate 16 can be smoothly locked into the positioning groove 21, while preventing the gas cylinder from accidentally pushing open the limiting plate 16.
[0032] One end of the base plate 1 is provided with a buffer slope for shoveling in liquefied gas cylinders. The buffer slope reduces the impact force when the gas cylinder is shoveled in, improving the safety of loading and unloading.
[0033] When using the LPG cylinder trolley, the limiting plate 16 is opened by rotating it, and the LPG cylinder is scooped into the bottom plate 1 through the buffer slope of the bottom plate 1. During the scooping process, the LPG cylinder exerts an outward squeezing force on the C-type elastic retaining ring 14, which makes the opening of the C-type elastic retaining ring 14 larger until the bottom of the LPG cylinder is completely inside the C-type elastic retaining ring 14. Then, the limiting plate 16 is rotated until the limiting plate 16 is engaged with the retaining plate 19. At this time, the limiting plate 16 is engaged at the opening of the C-type elastic retaining ring 14, which closes it and realizes the ring-shaped limiting of the bottom of the LPG cylinder. Then, the sleeve 8, together with the side plate 9, the horizontal plate 10 and its components, is inserted from the top of the column 2. The side plate 9 and the horizontal plate 10 cooperate to fix the arc plate 3 to realize the ring-shaped limiting of the upper part of the LPG cylinder. With the screw 11 screwed in, the LPG cylinder is pressed by the movable arc plate 12 to prevent the LPG cylinder from tipping over and falling. The entire device achieves a ring-shaped limit on the upper part of the liquefied gas cylinder by inserting and removing the sleeve 8, and a ring-shaped limit on the bottom of the liquefied gas cylinder by using the C-shaped elastic retaining ring 14 and the limiting plate 16. This makes the liquefied gas cylinder stable during the pushing process, and makes it convenient to put and take off the sleeve 8 and open and close the limiting plate 16, which facilitates the loading and unloading of the liquefied gas cylinder.
[0034] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
Claims
1. A liquefied petroleum gas (LPG) cylinder trolley for construction sites, comprising: The base plate (1) and the column (2) are characterized in that: the base plate (1) is provided with columns (2) on both sides of the top, the column (2) is provided with a trapezoidal bracket (4) on one side, the top of the trapezoidal bracket (4) is provided with a trolley handle (7), the bottom of the trapezoidal bracket (4) is provided with a wheel axle (5), the two ends of the wheel axle (5) are provided with rubber wheels (6), the upper half of the column (2) is provided with a sleeve (8), the sleeve (8) is provided with a side plate (9) on one side, the ends of the side plates (9) are provided with a horizontal plate (10), the lower half of the column (2) is provided with a C-shaped elastic retaining ring (14), and the columns (2) are provided with a fixed arc plate (3).
2. The liquefied petroleum gas cylinder trolley for construction sites according to claim 1, characterized in that: The horizontal plate (10) has a screw (11) in the center, and a movable arc plate (12) is provided at one end of the screw (11). The movable arc plate (12) and the fixed arc plate (3) are arranged opposite to each other.
3. A liquefied petroleum gas cylinder trolley for construction sites according to claim 2, characterized in that: One end of the screw (11) is fixed with a screw handle (13), and the center of the horizontal plate (10) is provided with a threaded hole that matches the screw (11). The screw (11) and the movable arc plate (12) are rotatably connected.
4. A liquefied petroleum gas cylinder trolley for construction sites according to claim 1, characterized in that: The sleeve (8) and the column (2) are fitted with a clearance, and the length of the horizontal plate (10) is greater than the diameter of the movable arc plate (12).
5. A liquefied petroleum gas cylinder trolley for construction sites according to claim 1, characterized in that: The top surface of the opening of the C-type elastic retaining ring (14) is provided with a positioning groove (21), and a limiting plate (16) is provided above the positioning groove (21).
6. A liquefied petroleum gas cylinder trolley for construction sites according to claim 5, characterized in that: The bottom plate (1) has a vertical plate (15) on one side of its top. One end of the limiting plate (16) is rotatably connected to the top of one side of the vertical plate (15). The bottom plate (1) has a card plate (19) on the other side of its top. One end of the limiting plate (16) can be locked inside the card plate (19).
7. A liquefied petroleum gas cylinder trolley for construction sites according to claim 6, characterized in that: A slot (20) is provided on one side of the upper half of the card plate (19), and the slot (20) and one end of the card plate (19) are interference fit.
8. A liquefied petroleum gas cylinder trolley for construction sites according to claim 5, characterized in that: The limiting plate (16) is provided with a limiting plate handle (18) on one side of its top.
9. A liquefied petroleum gas cylinder trolley for construction sites according to claim 5, characterized in that: The limiting plate (16) has right-angled triangular blocks (17) on both sides of the middle part. The inclined side of the right-angled triangular block (17) is close to the opening of the C-type elastic retaining ring (14). The minimum distance between the inclined sides of the right-angled triangular block (17) is less than the opening width of the C-type elastic retaining ring (14).
10. A liquefied petroleum gas cylinder trolley for construction sites according to claim 1, characterized in that: The bottom plate (1) has a buffer slope at one end for shoveling liquefied gas cylinders.