A fast-retractable lift platform guardrail
The articulated seat design for rotating and retracting the guardrail solves the problem of low retraction efficiency of existing lifting platform guardrails, achieving efficient retraction and reducing workload.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 海南国际商业航天发射有限公司
- Filing Date
- 2025-08-25
- Publication Date
- 2026-06-23
AI Technical Summary
Existing lifting platform guardrails have low retraction efficiency while ensuring protective effect, and the steel guardrails are heavy to disassemble and inconvenient to retract.
The guardrail adopts a hinged base design, with the guardrail connected to the hinged base through a plug-in part. The pin slides along the guide rail to achieve the rotation and retraction of the guardrail, simplifying the retraction process.
This approach ensures effective protection while improving the efficiency of guardrail removal and reducing the workload of staff.
Smart Images
Figure CN224394552U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of safety protection technology, and in particular to a quick-retraction lifting platform guardrail. Background Technology
[0002] The launch site elevator platform provides support for rocket test team members working on the rocket. Due to the high altitude, guardrails must be installed on the elevator platform to ensure a safe working environment for personnel. In the rocket's "three-vertical" launch mode, due to the presence of the pendulum, the upper surface of the elevator platform is relatively close to the pendulum during the swing-out / swing-back process. To avoid interference with the pendulum during the swing-out / swing-back process, the elevator platform guardrails must either be detachable or low, fixed. Currently, most launch sites in China use these two types. However, to ensure strength, the guardrails are usually made of steel, making direct disassembly too heavy and inconvenient for personnel to evacuate. Low, fixed guardrails, while not requiring disassembly, are also unlikely to provide adequate protection.
[0003] Therefore, how to improve the efficiency of guardrail removal while ensuring good protective effect is a problem that needs to be solved by those skilled in the art. Utility Model Content
[0004] The purpose of this application is to provide a quick-release lifting platform guardrail to solve the problems that low fixed guardrails are difficult to provide good protection; and that guardrails are usually made of steel, which makes them too heavy to disassemble and inconvenient for personnel to remove.
[0005] To solve the above-mentioned technical problems, this application provides a quick-retraction lifting platform guardrail, including: a platform body, a guardrail and a hinged base;
[0006] The guardrail includes a guardrail body and a connector located at the bottom of the guardrail body. The connector has protrusions on both sides, with the protrusions close to the guardrail body. The connector has a pin hole located away from the guardrail body. The hinge seat includes a first plate, a second plate, and a pin. The bottoms of the first and second plates are mounted on the surface of the platform body. The tops of the first and second plates have grooves to accommodate the protrusions. The connector is inserted between the first and second plates. The first and second plates have through holes. The pin passes sequentially through the through holes of the first and second plates, the pin hole, and the through hole of the second plate. The pin slides within the through holes along the height direction of the hinge seat. The guardrail is used to rotate around the pin after the protrusion disengages from the groove, so that the guardrail is tilted onto the platform body.
[0007] In an optional embodiment, a third plate is further provided at the edge of the platform body, the bottom of the third plate is mounted on the surface of the platform body, one side of the third plate is connected to the first plate and the second plate respectively, and the third plate is used to restrict the guardrail from rotating toward the side of the third plate.
[0008] In one optional embodiment, the guardrail body includes a U-shaped frame and multiple connecting rods. The U-shaped frame is formed by two vertical rods and one horizontal rod connected together. The two ends of the connecting rods are respectively connected to the two vertical rods, and the plug-in part is provided at the bottom of the vertical rod.
[0009] In one alternative embodiment, the bottom of the longitudinal rod is connected to the plug-in portion via a mounting base, the width of which is greater than the distance between the first plate and the second plate.
[0010] In one alternative embodiment, the plug portion is flat, and the two ends of the bottom of the plug portion are rounded.
[0011] In one optional embodiment, the boss is a cylindrical boss, the groove is a U-shaped groove, and the bottom surface of the U-shaped groove is an arc surface that matches the circumferential surface of the cylindrical boss.
[0012] In one optional embodiment, the through hole is an oblong hole, and the length direction of the oblong hole is the height direction of the hinge seat.
[0013] In one optional embodiment, the pin includes a pin head and a pin post, the head of the pin post being connected to the pin head, and the diameter of the pin head being larger than the width of the oblong hole.
[0014] In an optional embodiment, the device further includes an annular washer and a pin. The annular washer is sleeved on the tail of the pin post, and the tail of the pin post has a through hole. The pin is inserted into the through hole to clamp the first plate, the insertion part, and the second plate between the pin head and the annular washer.
[0015] In one optional embodiment, the guardrail body is provided with an anti-slip part, and the surface of the anti-slip part is provided with anti-slip texture.
[0016] This application provides a quick-retraction lifting platform guardrail, which includes a guardrail body and a plug-in part located at the bottom of the guardrail body. The plug-in part has protrusions on both sides, with the protrusions close to the guardrail body. The plug-in part has a pin hole, which is located away from the guardrail body. The hinge seat includes a first plate, a second plate, and a pin. The bottoms of the first plate and the second plate are mounted on the surface of the platform body. The tops of the first plate and the second plate have grooves to accommodate the protrusions. The plug-in part is inserted between the first plate and the second plate. The first plate and the second plate have through holes, and the pin passes through the through holes of the first plate, the pin hole, and the through holes of the second plate in sequence. When the protrusion on the connector is located in the groove, the guardrail body is set perpendicular to the platform body, providing a safety protection function. Lifting the guardrail body causes the protrusion to disengage from the groove, and rotating the guardrail body allows the guardrail to be placed upside down on the platform body, completing the guardrail removal. Removal is simple and quick, requiring only lifting and rotation, without the need to lift and remove the guardrail, reducing the workload of personnel and eliminating the need for low guardrails. Therefore, the guardrail and platform body are hinged together by a hinged joint, which can improve the efficiency of guardrail removal and reduce the workload of personnel while ensuring good protection. Attached Figure Description
[0017] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 A structural diagram of a quick-retraction lifting platform guardrail provided in an embodiment of this application;
[0019] Figure 2 A schematic diagram of the connection between a guardrail and a hinged seat is provided for an embodiment of this application;
[0020] Figure 3 An exploded view of a guardrail and hinge seat provided in an embodiment of this application;
[0021] Figure 4 This is a schematic diagram of a guardrail inverted on the main body of a platform, provided as an embodiment of this application.
[0022] The attached figures are labeled as follows: 1-Platform body, 2-Guardrail, 3-Hinge seat, 4-Guardrail body, 5-Plug-in part, 6-Boss, 7-Pin hole, 8-First plate, 9-Second plate, 10-Pin, 11-Groove, 12-Through hole, 13-Third plate, 14-Horizontal bar, 15-Vertical bar, 16-Connecting rod, 17-Mounting seat, 18-Pin head, 19-Pin post, 20-Annular washer, 21-Pin shaft, 22-Through hole. Detailed Implementation
[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.
[0024] The core of this application is to provide a quick-retraction lifting platform guardrail, which improves the efficiency of guardrail retraction and reduces the workload of personnel while ensuring good protection.
[0025] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] Figure 1 This application provides a structural diagram of a quick-retraction lifting platform guardrail. Figure 2 This is a schematic diagram illustrating the connection between a guardrail and a hinged seat, provided in an embodiment of this application. Figure 3 This is an exploded view of a guardrail and hinge seat provided in an embodiment of this application. Figure 4 This application provides a schematic diagram of a guardrail inverted on the platform body, as shown in Figures 1 to 12. Figure 4 As shown, the quick-release lifting platform guardrail includes: a platform body 1, a guardrail 2, and a hinge seat 3; the guardrail 2 includes a guardrail body 4 and a plug-in part 5 located at the bottom of the guardrail body 4, with protrusions 6 on both sides of the plug-in part 5, the protrusions 6 being located close to the guardrail body 4, and the plug-in part 5 having a pin hole 7 located away from the guardrail body 4; the hinge seat 3 includes a first plate 8, a second plate 9, and a pin 10, the bottoms of the first plate 8 and the second plate 9 being mounted on the surface of the platform body 1, the first plate 8 and the second plate 9 being mounted on the surface of the platform body 1, the first plate 8 and the second plate 9 being mounted on the surface of the platform body 1, the first plate 8 and the second plate 9 being mounted on the surface of the platform body 1, the first plate 8 and the second plate 9 being mounted on the surface of the platform body 1, the second plate 9 and the second plate 9 being mounted on the surface of the platform body 1, the second ... The top of the plate 9 is provided with a groove 11 to accommodate the boss 6. The plug part 5 is movably inserted between the first plate 8 and the second plate 9. The first plate 8 and the second plate 9 are provided with through holes 12. The pin 10 is sequentially inserted through the through hole 12 of the first plate 8, the pin hole 7, and the through hole 12 of the second plate 9. The pin 10 slides in the through hole 12 along the height direction of the hinge seat 3. The guardrail 2 is used to rotate around the pin 10 after the boss 6 is disengaged from the groove 11, so that the guardrail 2 is upside down on the platform body 1.
[0027] This application embodiment of the guardrail 2 includes a guardrail body 4 and an insertion part 5 located at the bottom of the guardrail body 4. This application embodiment does not limit the structure of the guardrail body 4; the guardrail body 4 includes a U-shaped frame and multiple connecting rods 16. The U-shaped frame is integrally formed by two vertical rods 15 and one horizontal rod 14. The two ends of the connecting rods 16 are respectively connected to the two vertical rods 15, and the insertion part 5 is located at the bottom of the vertical rods 15; the multiple connecting rods 16 are spaced apart along the length of the vertical rods 15. Further, the bottom of the vertical rods 15 is connected to the insertion part 5 via a mounting base 17, the width of which is greater than the distance between the first plate 8 and the second plate 9. Figure 3 As shown, the mounting base 17 and the plug-in part 5 form a T-shape. The width of the mounting base 17 is greater than the distance between the first plate 8 and the second plate 9. Therefore, the mounting base 17 cannot be placed between the two plates. The mounting base 17 overlaps the top surface of the first plate 8 and the top surface of the second plate 9 to prevent the entire weight of the guardrail 2 from pressing on the boss 6.
[0028] In this embodiment, the top of the plug-in part 5 is connected to the bottom of the guardrail body 4. Bosses 6 are provided on both sides near the top of the plug-in part 5, and pin holes 7 are provided near the bottom of the plug-in part 5. The plug-in part 5 is flat in shape to match the gap between the first plate 8 and the second plate 9, and the two ends of the bottom of the plug-in part 5 are rounded. During the flipping process, the rounded corners avoid interference with the third plate 13, reducing wear and jamming, so that the guardrail 2 can fall down continuously in one go.
[0029] In this embodiment, the first plate 8 and the second plate 9 of the hinge seat 3 can be reinforced plates, which can significantly improve the rigidity, strength, and stability of the hinge seat 3. The length of the pin 10 of the hinge seat 3 needs to be able to pass through the first plate 8, the insertion part 5, and the second plate 9 in sequence. The bottom of the first plate 8 and the second plate 9 are welded to the surface of the platform body 1 to ensure stability. The top of the first plate 8 and the second plate 9 is provided with a groove 11 to accommodate the boss 6; the boss 6 is a cylindrical boss, and the groove 11 is a U-shaped groove, and the bottom surface of the U-shaped groove is an arc surface that matches the circumference of the cylindrical boss. The circumference of the cylindrical boss fits the arc surface of the U-shaped groove, and the guardrail 2 automatically finds its center when standing upright, with minimal lateral and torsional gaps, ensuring minimal swaying of the guardrail 2. When the guardrail 2 is lifted, the cylindrical surface has low resistance and no jamming. The first plate 8 and the second plate 9 have through holes 12. The pin 10 is sequentially passed through the through hole 12 of the first plate 8, the pin hole 7, and the through hole 12 of the second plate 9. The through hole 12 is an oblong hole, and the length direction of the oblong hole is the height direction of the hinge seat 3. The pin 10 can slide up and down in the oblong hole to form a linear lifting guide rail for the guardrail 2. The oblong hole provides longitudinal travel, so that the guardrail 2 must be lifted up first (the boss 6 is completely disengaged from the groove 11) before it can be rotated around the pin 10. When rotating, the pin 10 is always restricted by the oblong hole to prevent accidental pull-out.
[0030] It is important to note the distance between the boss 6 and the pin hole 7, the length of the oblong hole, the length of the U-shaped groove, and the distance between the oblong hole and the U-shaped groove, so that the boss 6 can disengage from the groove 11, and the guardrail 2 can rotate around the pin 10 and be tilted onto the platform body 1 after the boss 6 disengages from the groove 11. Specifically, the length of the oblong hole is longer than the U-shaped groove to ensure that the pin 10 is within its movable range, allowing the boss 6 to disengage from the groove 11 and rotate over the top surfaces of the first plate 8 and the second plate 9.
[0031] Furthermore, the pin 10 includes a pin head 18 and a pin post 19. The head of the pin post 19 is connected to the pin head 18, and the diameter of the pin head 18 is larger than the width of the oblong hole. The larger diameter of the pin head 18 than the width of the oblong hole is to prevent the pin 10 from accidentally falling off. It also includes an annular washer 20 and a pin 21. The annular washer 20 is sleeved on the tail of the pin post 19, and the tail of the pin post 19 is provided with a through hole 22. The pin 21 is inserted into the through hole 22 to clamp the first plate 8, the insertion part 5, and the second plate 9 between the pin head 18 and the annular washer 20. The annular washer 20 and the pin 21 can further prevent the pin 10 from falling off. The pin 10 can be pulled out at once by removing the pin 21. The guardrail 2 and the insertion part 5 can be pulled out as a whole from the hinge seat 3, which meets the complete disassembly requirements during platform transportation or maintenance. It is also very convenient to assemble without tools. Of course, a through hole 22 can also be provided at the head of the pin post 19, which can be locked by inserting the pin shaft 21, or by using other special-shaped pins to achieve self-locking; the pin shaft 21 can also be a spring pin or other easily removable steel wire winding method, so as to facilitate the removal, replacement and maintenance of the guardrail body 4.
[0032] Based on the above embodiments, the hinge seat 3 in this application embodiment further includes a third plate 13 disposed at the edge of the platform body 1. The bottom of the third plate 13 is mounted on the surface of the platform body 1, and one side of the third plate 13 is connected to the first plate 8 and the second plate 9 respectively. The third plate 13 is used to restrict the guardrail 2 from rotating toward the side of the third plate 13. The bottom of the third plate 13 is welded to the surface of the platform body 1, and the third plate 13 can also be a stiffening plate. The third plate 13 is equivalent to a fixed stop, limiting the flipping direction of the guardrail 2 to the side away from the third plate 13, so as to avoid causing safety hazards.
[0033] Based on the above embodiments, the guardrail body 4 of this application embodiment is provided with an anti-slip part, and the surface of the anti-slip part is provided with anti-slip texture. The anti-slip part provides a gripping area during the lifting or lowering of the guardrail 2, preventing hands from being pinched or falling heavily onto the platform body 1.
[0034] For ease of understanding, the following describes the operation method of the quick-release lifting platform guardrail: When not in use, the guardrail 2 is placed horizontally; when protection is needed, lift the guardrail body 4 upwards while rotating it towards the edge of the platform body 1. The pin 10 moves upwards along the oblong hole until the protrusion 6 on the insertion part 5 passes over the top of the hinge seat 3. The guardrail body 4 is perpendicular to the platform body 1. Lower the guardrail body 4, and the protrusions 6 on both sides fall into the U-shaped groove, completing the vertical protection work; when retraction is needed, first lift the guardrail body 4 upwards, and the pin 10 moves upwards in the oblong hole until the protrusion 6 on the insertion part 5 disengages from the U-shaped groove. Rotate while lowering the guardrail body 4, and it falls onto the upper surface of the platform body 1, completing the retraction work.
[0035] This application provides a quick-retraction lifting platform guardrail, which includes a guardrail body and a plug-in part located at the bottom of the guardrail body. The plug-in part has protrusions on both sides, with the protrusions close to the guardrail body. The plug-in part has a pin hole, which is located away from the guardrail body. The hinge seat includes a first plate, a second plate, and a pin. The bottoms of the first plate and the second plate are mounted on the surface of the platform body. The tops of the first plate and the second plate have grooves to accommodate the protrusions. The plug-in part is inserted between the first plate and the second plate. The first plate and the second plate have through holes, and the pin passes through the through holes of the first plate, the pin hole, and the through holes of the second plate in sequence. When the protrusion on the connector is located in the groove, the guardrail body is set perpendicular to the platform body, providing a safety protection function. Lifting the guardrail body causes the protrusion to disengage from the groove, and rotating the guardrail body allows the guardrail to be placed upside down on the platform body, completing the guardrail removal. Removal is simple and quick, requiring only lifting and rotation, without the need to lift and remove the guardrail, reducing the workload of personnel and eliminating the need for low guardrails. Therefore, the guardrail and platform body are hinged together by a hinged joint, which can improve the efficiency of guardrail removal and reduce the workload of personnel while ensuring good protection.
[0036] The foregoing has provided a detailed description of a quick-retraction lifting platform guardrail provided in this application. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.
[0037] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A quick-retraction lifting platform guardrail, characterized in that, include: Platform body (1), guardrail (2) and hinge seat (3); The guardrail (2) includes a guardrail body (4) and a plug-in part (5) located at the bottom of the guardrail body (4). The plug-in part (5) has protrusions (6) on both sides, with the protrusions (6) positioned close to the guardrail body (4). The plug-in part (5) has a pin hole (7) located away from the guardrail body (4). The hinge seat (3) includes a first plate (8), a second plate (9), and a pin (10). The bottoms of the first plate (8) and the second plate (9) are mounted on the surface of the platform body (1). The tops of the first plate (8) and the second plate (9) have grooves to accommodate the protrusions (6). 11), the plug part (5) is inserted between the first plate (8) and the second plate (9). The first plate (8) and the second plate (9) are provided with through holes (12). The pin (10) is arranged to pass through the through hole (12) of the first plate (8), the pin hole (7) and the through hole (12) of the second plate (9) in sequence. The pin (10) slides in the through hole (12) along the height direction of the hinge seat (3). The guardrail (2) is used to rotate around the pin (10) after the boss (6) is disengaged from the groove (11) so that the guardrail (2) is upside down on the platform body (1).
2. The quick-retraction lifting platform guardrail according to claim 1, characterized in that, It also includes a third plate (13) located at the edge of the platform body (1), the bottom of the third plate (13) being mounted on the surface of the platform body (1), one side of the third plate (13) being connected to the first plate (8) and the second plate (9) respectively, and the third plate (13) being used to restrict the guardrail (2) from rotating toward the side of the third plate (13).
3. The quick-retraction lifting platform guardrail according to claim 1, characterized in that, The guardrail body (4) includes a U-shaped frame and multiple connecting rods (16). The U-shaped frame is formed by two vertical rods (15) and a horizontal rod (14) connected together. The two ends of the connecting rod (16) are respectively connected to the two vertical rods (15). The plug-in part (5) is located at the bottom of the vertical rod (15).
4. The quick-retraction lifting platform guardrail according to claim 3, characterized in that, The bottom of the longitudinal rod (15) is connected to the plug (5) via a mounting base (17), the width of which is greater than the distance between the first plate (8) and the second plate (9).
5. The quick-retraction lifting platform guardrail according to claim 1, characterized in that, The plug part (5) is flat, and the two ends of the bottom of the plug part (5) are rounded.
6. The quick-retraction lifting platform guardrail according to claim 1, characterized in that, The boss (6) is a cylindrical boss, the groove (11) is a U-shaped groove, and the bottom surface of the U-shaped groove is an arc surface that matches the circumference of the cylindrical boss.
7. The quick-retraction lifting platform guardrail according to claim 1, characterized in that, The through hole (12) is an oblong hole, and the length direction of the oblong hole is the height direction of the hinge seat (3).
8. The quick-retraction lifting platform guardrail according to claim 7, characterized in that, The pin (10) includes a pin head (18) and a pin post (19), the head of the pin post (19) being connected to the pin head (18), and the diameter of the pin head (18) being greater than the width of the waist-shaped hole.
9. The quick-retraction lifting platform guardrail according to claim 8, characterized in that, It also includes an annular washer (20) and a pin (21). The annular washer (20) is sleeved on the tail of the pin post (19). The tail of the pin post (19) is provided with a through hole (22). The pin (21) is inserted into the through hole (22) to clamp the first plate (8), the plug part (5), and the second plate (9) between the pin head (18) and the annular washer (20).
10. The quick-retraction lifting platform guardrail according to any one of claims 1 to 9, characterized in that, The guardrail body (4) is provided with an anti-slip part, and the surface of the anti-slip part is provided with anti-slip texture.