Heavy rolling protective fence for loading and unloading area
By designing a heavy-duty rolling guardrail with a combined structure of rollers and toughness restriction belts, the problem of manual removal and placement of existing isolation devices is solved, and rapid opening and closing and efficient safety protection effects are achieved.
Patent Information
- Application Number
- CN202422105418.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-29
AI Technical Summary
The isolation device in the existing loading and unloading area needs to be manually moved and placed, which is time-consuming and labor-intensive, and is not convenient for quick docking and loading and unloading operations.
A heavy-duty coiling guardrail is designed, and a combined structure of roller and toughness restriction belt is adopted. The retraction and release of the toughness restriction belt is achieved through the retraction and torque spring, and the tension is adjusted through the steel sheet coil spring and the adjustment of the fixed shaft to achieve rapid opening and closing.
The guardrail has high structural strength, which can effectively prevent forklifts or personnel from accidentally falling from loading and unloading areas, and quickly open when needed, simplifying the loading and unloading process.
Smart Images
Figure CN223015944U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of safety protection devices, and more specifically, to a heavy-duty retractable guardrail for loading and unloading areas. Background Art
[0002] At present, when transporting materials or products in a warehouse to a truck, several loading and unloading areas adapted to the height of the truck are usually set at the exit of the warehouse to facilitate loading and unloading. When the truck does not reach the designated position and accurately dock with the loading and unloading area, in order to ensure the safety of goods and personnel and avoid dangerous situations such as forklifts or personnel accidentally falling from the loading and unloading area, an isolation device needs to be set at the exit of the loading and unloading area to achieve the effect of safety protection.
[0003] The commonly used equipment at present is to use a fence that matches the size of the loading and unloading area for isolation. When loading and unloading operations need to be carried out after the truck accurately docks with the loading and unloading area, the fence is manually moved away, and the moving action is time-consuming and laborious, which is rather inconvenient. For this reason, the utility model proposes a heavy-duty retractable guardrail for loading and unloading areas. Summary of the Utility Model
[0004] 1. Technical Problems to be Solved
[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a heavy-duty retractable guardrail for loading and unloading areas.
[0006] 2. Technical Solutions
[0007] The utility model adopts the following technical solutions:
[0008] A heavy-duty retractable guardrail for loading and unloading areas includes two columns. The two columns are symmetrically distributed. A winding fixed shaft and an adjusting fixed shaft are respectively fixedly connected inside the two columns. The outer surfaces of the winding fixed shaft and the adjusting fixed shaft are respectively rotatably connected with drums, and the two drums are respectively located inside the two columns. A torsion spring is fixedly connected between the top wall of one drum and the winding fixed shaft, and a steel sheet spring is arranged between the bottom end of the other drum and the adjusting fixed shaft. A toughness limiting belt is detachably connected between the two drums.
[0009] As a preferred solution of the utility model, the winding fixed shaft includes two segmented shafts, two vertical groove slide rods and a sliding sleeve. The far ends of the two segmented shafts are respectively fixedly connected to the top wall and the bottom wall of a column, and the torsion spring is sleeved on the outer surface of the upper segmented shaft. The two vertical groove slide rods are respectively fixedly connected to the close ends of the two segmented shafts. The sliding sleeve is slidably connected to the outer surfaces of the two vertical groove slide rods, and one end of the torsion spring is fixedly connected to the outer surface of the sliding sleeve.
[0010] As a preferred embodiment of the present utility model, the toughness limiting belt comprises a PVC base cloth and a nylon belt. The PVC base cloth is detachably connected to the outer surfaces of the two rollers, and the nylon belt is fixedly connected to the PVC base cloth.
[0011] As a preferred embodiment of the present utility model, a rotating bearing assembly is provided between the outer surfaces of the two segmented shafts and one of the rollers, and the same rotating bearing assembly is provided between the adjusting fixed shaft and the other roller.
[0012] As a preferred embodiment of the present utility model, the bottoms of the two columns are fixedly connected with column bodies, the bottoms of the two column bodies are fixedly connected with bottom plates, the two column bodies are integrally bent and formed by high-strength steel plates with a plate thickness of 8 mm, and the two bottom plates are made of steel plates with a plate thickness of 16 mm.
[0013] As a preferred embodiment of the present utility model, the steel leaf spring is provided with 3 - 5 pieces.
[0014] 3. Beneficial effects
[0015] Compared with the prior art, the advantages of the present utility model are as follows:
[0016] 1) In this solution, the toughness limiting belt is arranged between the two columns. One of the rollers winds and unwinds the toughness limiting belt through the winding fixed shaft and the torsion spring, and the other roller adjusts the tension of the toughness limiting belt through the steel leaf spring and the adjusting fixed shaft. The unfolded toughness limiting belt provides protection in the loading and unloading area; this protective fence has extremely high structural strength, can prevent forklifts or personnel from accidentally falling from the loading and unloading area, and is convenient to open and close, and can be quickly opened when loading and unloading operations are required. Brief description of the drawings
[0017] Figure 1 It is a schematic cross-sectional structure diagram of a heavy-duty retractable protective fence for a loading and unloading area of the present utility model.
[0018] Explanation of the reference numerals in the figure:
[0019] 1. Column; 2. Winding fixed shaft; 21. Segmented shaft; 22. Vertical groove slide bar; 23. Slide sleeve; 3. Adjusting fixed shaft; 4. Roller; 5. Torsion spring; 6. Steel leaf spring; 7. Toughness limiting belt; 71. PVC base cloth; 72. Nylon belt; 8. Rotating bearing assembly; 9. Column body; 10. Bottom plate. Detailed implementation manners
[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0023] Embodiment:
[0024] Please refer to Figure 1 , a heavy-duty retractable guardrail for a loading and unloading area, including two columns 1. The two columns 1 are symmetrically distributed. A retractable fixed shaft 2 and an adjustment fixed shaft 3 are respectively fixedly connected inside the two columns 1. The outer surfaces of the retractable fixed shaft 2 and the adjustment fixed shaft 3 are respectively rotatably connected with drums 4, and the two drums 4 are respectively located inside the two columns 1. A torsion spring 5 is fixedly connected between the top wall of one drum 4 and the retractable fixed shaft 2. A steel leaf spring 6 is arranged between the bottom end of the other drum 4 and the adjustment fixed shaft 3. The steel leaf spring 6 is provided with 3 - 5 pieces. A resilient restraint belt 7 is detachably connected between the two drums 4.
[0025] In this embodiment, the two columns 1 are placed on the loading and unloading area. The two columns 1 control the retraction and release of the resilient restraint belt 7 through the two drums 4. The retractable fixed shaft 2 enables one drum 4 to twist and retract the resilient restraint belt 7 through the torsion spring 5. The retracted resilient restraint belt 7 is located inside one column 1. The other drum 4 can control the tension of the resilient restraint belt 7 through the cooperation of the steel leaf spring 6 and the adjustment fixed shaft 3.
[0026] Specifically, the winding fixed shaft 2 includes two segmented shafts 21, two vertical groove slides 22 and a sliding sleeve 23. The ends of the two segmented shafts 21 that are far away from each other are respectively fixedly connected to the top wall and bottom wall of a column 1, and the torsion spring 5 is sleeved on the outer surface of the upper segmented shaft 21. The two vertical groove slides 22 are respectively fixedly connected to the ends of the two segmented shafts 21 that are close to each other. The sliding sleeve 23 is slidably connected to the outer surfaces of the two vertical groove slides 22, and one end of the torsion spring 5 is fixedly connected to the outer surface of the sliding sleeve 23.
[0027] In this embodiment, the two segmented shafts 21 enable the roller 4 in the column 1 to rotate, thereby realizing the winding of the toughness limiting belt 7. The two vertical groove slide bars 22 enable the sliding sleeve 23 to slide up and down, so that the torsion spring 5 can extend downward when deformed. A certain distance is set between the two vertical groove slide bars 22 to reduce material usage and reduce costs.
[0028] Specifically, the toughness limiting belt 7 includes a PVC base cloth 71 and a nylon belt 72 . The PVC base cloth 71 is detachably connected to the outer surfaces of the two rollers 4 , and the nylon belt 72 is fixedly connected to the PVC base cloth 71 .
[0029] In this embodiment, the toughness limiting belt 7 formed by the combination of the PVC base cloth 71 and the nylon belt 72 has a relatively high strength, which is convenient for blocking and protecting heavy objects.
[0030] Specifically, a rotating bearing assembly 8 is disposed between the outer surfaces of the two segmented shafts 21 and one roller 4 , and a similar rotating bearing assembly 8 is disposed between the adjusting and fixing shaft 3 and the other roller 4 .
[0031] In this embodiment, the bearing assembly 8 is rotated to make the two rollers 4 rotate more smoothly, thereby ensuring the stability of the toughness limiting belt 7 when it is retracted and released.
[0032] Specifically, the bottom ends of the two columns 1 are fixedly connected with column bodies 9, and the bottom ends of the two column bodies 9 are fixedly connected with bottom plates 10. The two column bodies 9 are integrally bent from high-strength steel plates with a thickness of 8 mm, and the two bottom plates 10 are steel plates with a thickness of 16 mm.
[0033] In this embodiment, the two bottom plates 10 are fixed to the ground by six expansion bolts, and cooperate with the two column shafts 9 to improve the stability of the two columns 1.
[0034] Working principle: The toughness limiting belt 7 is set between two columns 1, one of the rollers 4 retracts and releases the toughness limiting belt 7 through the winding fixed shaft 2 and the torsion spring 5, and the other roller 4 adjusts the tension of the toughness limiting belt 7 through the steel leaf spring 6 and the adjusting fixed shaft 3. The unfolded toughness limiting belt 7 protects the loading and unloading area to prevent objects from falling.
[0035] As described above, it is only the preferred specific implementation manner of the present utility model. However, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and its improved concept of the present utility model, makes equivalent replacements or changes, and all should be covered within the protection scope of the present utility model.
Claims
1. A heavy-duty retractable guardrail for a loading and unloading area, comprising two upright posts (1), characterized in that: The two columns (1) are symmetrically distributed, and a winding fixed shaft (2) and an adjusting fixed shaft (3) are respectively fixedly connected in the two columns (1). The outer surfaces of the winding fixed shaft (2) and the adjusting fixed shaft (3) are both rotatably connected with rollers (4), and the two rollers (4) are respectively located in the two columns (1). A torsion spring (5) is fixedly connected between the top wall of one roller (4) and the winding fixed shaft (2), and a steel sheet coil spring (6) is provided between the bottom end of the other roller (4) and the adjusting fixed shaft (3). A toughness limiting belt (7) is detachably connected between the two rollers (4).
2. A heavy-duty retractable guardrail for a loading and unloading area according to claim 1, characterized in that: The winding fixed shaft (2) comprises two segmented shafts (21), two vertical groove slide bars (22) and a sliding sleeve (23); the ends of the two segmented shafts (21) that are far away from each other are respectively fixedly connected to the top wall and the bottom wall of a column (1); and a torsion spring (5) is sleeved on the outer surface of the segmented shaft (21) located on the upper side; the two vertical groove slide bars (22) are respectively fixedly connected to the ends of the two segmented shafts (21) that are close to each other; the sliding sleeve (23) is slidably connected to the outer surfaces of the two vertical groove slide bars (22); and one end of the torsion spring (5) is fixedly connected to the outer surface of the sliding sleeve (23).
3. A heavy-duty retractable guardrail for a loading and unloading area according to claim 2, characterized in that: The toughness limiting belt (7) comprises a PVC base cloth (71) and a nylon belt (72); the PVC base cloth (71) is detachably connected to the outer surfaces of the two rollers (4); and the nylon belt (72) is fixedly connected to the PVC base cloth (71).
4. A heavy-duty retractable guardrail for a loading and unloading area according to claim 3, characterized in that: A rotating bearing assembly (8) is arranged between the outer surfaces of the two segmented shafts (21) and a roller (4), and a similar rotating bearing assembly (8) is arranged between the adjusting fixed shaft (3) and another roller (4).
5. A heavy-duty retractable guardrail for a loading and unloading area according to claim 4, characterized in that: The bottom ends of the two upright columns (1) are fixedly connected to a column body (9), and the bottom ends of the two column bodies (9) are fixedly connected to a bottom plate (10). The two column bodies (9) are integrally bent and formed from a high-strength steel plate with a thickness of 8 mm, and the two bottom plates (10) are steel plates with a thickness of 16 mm.
6. A heavy-duty retractable guardrail for a loading and unloading area according to claim 5, characterized in that: The steel leaf coil spring (6) is configured to have 3 to 5 leaves.