Annular operating platform

By designing a ring-shaped operating platform, the safety hazards of operating at heights during the assembly of solid rocket motor casings were resolved, and the convenience and safety of operation were improved.

CN223889944UActive Publication Date: 2026-02-10XIAN AEROSPACE CHEM PROPULTION PLANT
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Patent Information

Application Number
CN202423233460.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2026-02-10
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

During the assembly of solid rocket motor casings, personnel operating at heights pose safety hazards. Traditional step-type operating platforms are unstable, increasing labor intensity and posing quality risks.

Method used

Design a ring-shaped operating platform, including an outer guardrail, a ring-shaped operating platform, a base, an inner guardrail, and a protective chain. The central hole of the platform is concentric with the assembly pit. The outer and inner guardrails provide protection, and the ring-shaped pedal and reinforcing ribs enhance stability.

Benefits of technology

It eliminates the safety hazards of working at heights, reduces labor intensity, improves the convenience and safety of operation, and avoids the risk of tipping over and collisions associated with traditional step platforms.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an annular operating platform which comprises an outer side guardrail, an inner side guardrail, an annular pedal, a protective chain and a base. The tool is integrally assembled and used. According to the operation platform, the safety problem in the production process can be solved, the risk that operators fall off in the operation process is avoided, meanwhile, the operation platform makes contact with the ground cover plate through the base, the gravity center is located on the center axis of the platform, and the risk that a traditional stepping type platform topples over is avoided. In addition, the platform can operate the product for one circle, and the risk caused by the fact that a traditional stepping type platform needs to be carried and lifted is avoided.
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Description

Technical Field

[0001] This utility model relates to a ring-shaped operating platform, belonging to the field of solid propellant loading technology. Background Technology

[0002] During the assembly of solid rocket motor casings, the dimensions of the assembly pit are fixed, while the dimensions of the casing itself are constantly changing. For some casings, the tail section is more than 2 meters above the ground. Safety regulations stipulate that personnel operating at heights above 2 meters must have safety protection measures. If steps are used, the gap between the pit opening and the casing can cause the steps to become unstable, still posing a safety hazard. The steps also need to be moved circumferentially during use, increasing the difficulty and labor intensity for personnel. To completely solve these problems, this invention designs a ring-shaped operating platform. The support is located on a cover plate, and the operating platform is 1 meter above the ground. When personnel stand on the platform, the operating area is directly in front of them. A 1-meter-high railing is installed on the outer side of the operating platform, and a 0.5-meter-high guardrail is installed on the inner side, effectively solving the safety problem for operators. Utility Model Content

[0003] The technical problem solved by this utility model is to overcome the shortcomings of the existing production mode and provide a ring-shaped operation platform to eliminate potential safety and quality hazards in the production process.

[0004] The technical solution of this utility model is:

[0005] This utility model discloses a ring-shaped operating platform, including an outer guardrail, a ring-shaped operating platform, a base, an inner guardrail, and a protective chain; wherein, the ring-shaped operating platform is a ring structure; the ring-shaped operating platform is installed on the base; the outer guardrail is perpendicularly connected to the outer ring of the ring structure; the outer guardrail has an entrance; the protective chain is detachably installed on the entrance of the outer guardrail; the inner guardrail is perpendicularly connected to the inner ring of the ring structure; the protective chain is in a protective state during operation, and the operator stands on the upper surface of the ring-shaped operating platform during operation, protected from behind by the outer guardrail and from the front by the inner guardrail; before work, the ring-shaped operating platform is placed in the assembly pit, ensuring that the center hole of the ring-shaped operating platform is concentric with the assembly pit.

[0006] Furthermore, in the aforementioned platform, the annular operating platform includes an inner ring, an outer ring, an annular pedal, and reinforcing ribs; wherein, a plurality of reinforcing ribs are radially distributed between the inner ring and the outer ring, with one end connected to the inner ring and the other end connected to the outer ring; the annular pedal is placed on the reinforcing ribs.

[0007] Furthermore, in the aforementioned platform, the base includes an annular support plate, support columns, reinforcing ribs, transverse ribs, and pads; wherein, a plurality of support columns are vertically installed on the lower surface of the annular support plate to support the annular support plate, and the transverse ribs connect each support column; one end of the reinforcing rib is connected to the support column, and the other end is connected to the transverse rib, serving a reinforcing function; a plurality of pads are placed on the lower end face of each support column.

[0008] Furthermore, when placing the pad on the aforementioned platform, ensure that it is in contact with the support surface.

[0009] Furthermore, in the aforementioned platform, the distance between the intersection points of two adjacent reinforcing ribs and the outer ring is no greater than 500mm.

[0010] Furthermore, in the aforementioned platform, there are no fewer than two protective chains with a spacing of 200mm-300mm.

[0011] Furthermore, in the aforementioned platform, the height of the outer guardrail is not less than 1000mm.

[0012] Furthermore, in the aforementioned platform, the height of the inner guardrail is not less than 500mm.

[0013] Furthermore, in the aforementioned platform, the annular pedal, reinforcing ribs, and annular support plate are connected by bolts, with no fewer than 10 bolts.

[0014] Furthermore, in the aforementioned platform, both the outer and inner guardrails are composed of several posts; the distance between two adjacent posts is no more than 150mm.

[0015] The advantages of this utility model over the prior art are as follows:

[0016] (1) This utility model eliminates the safety hazards of personnel operating at heights during the production process. Safety during the production process is related to the health of workers, and sound safety facilities are the basic guarantee for protecting the health of workers. In order to improve work efficiency, reduce the labor intensity of personnel, ensure personnel safety, and provide convenience for operation, a ring-shaped operating platform is designed based on existing conditions, which improves the safety level and convenience of operation during the operation process.

[0017] (2) This utility model adopts a ring-shaped operating platform instead of the traditional step-type operating platform. Its center of gravity is located on the axis of the ring-shaped operating platform, eliminating the risk of tipping over that exists in the traditional step-type operating platform.

[0018] (3) This utility model adopts a ring-shaped operating platform instead of the traditional step-type operating platform, which avoids the need for personnel to lift and move the equipment during operation and eliminates the quality hazards caused by the collision of the shell with the traditional step-type operating platform.

[0019] (4) This utility model adopts a ring-shaped operating platform instead of a traditional step-type operating platform. The gap between the shell and the inner guardrail of the operating platform meets the safety requirements and eliminates the safety hazard of personnel falling during operation. Attached Figure Description

[0020] Figure 1 This is a structural diagram of a ring-shaped operating platform according to this utility model;

[0021] Figure 2 This is a structural diagram of the ring-shaped operating platform of this utility model;

[0022] Figure 3 This is a structural diagram of the base of this utility model. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 As shown, this utility model discloses a ring-shaped operating platform, including an outer guardrail 1, a ring-shaped operating platform 2, a base 3, an inner guardrail 4, and a protective chain 5; wherein, the ring-shaped operating platform 2 is a ring structure; the ring-shaped operating platform 2 is installed on the base 3; the outer guardrail 1 is perpendicularly connected to the outer ring of the ring structure; the outer guardrail 1 has an entrance; the protective chain 5 is detachably installed on the entrance of the outer guardrail 1; the inner guardrail 4 is perpendicularly connected to the inner ring of the ring structure; the protective chain 5 is in a protective state during operation, and the operator stands on the upper surface of the ring-shaped operating platform 2 during operation, protected from behind by the outer guardrail 1 and from the front by the inner guardrail 4; before work, the ring-shaped operating platform 2 is placed in the assembly pit, ensuring that the center hole of the ring-shaped operating platform 2 is concentric with the assembly pit.

[0025] Preferably, such as Figure 2 As shown, the annular operating platform 2 includes an inner ring, an outer ring, an annular pedal 6, and reinforcing ribs 7; wherein, a number of reinforcing ribs 7 are radially distributed between the inner ring and the outer ring, with one end connected to the inner ring and the other end connected to the outer ring; the annular pedal 6 is placed on the reinforcing ribs 7.

[0026] Preferably, such as Figure 3 As shown, the base 3 includes an annular support plate 8, support columns 9, reinforcing ribs 10, horizontal ribs 11, and pads 12; wherein, several support columns 9 are vertically installed on the lower surface of the annular support plate 8 to support the annular support plate 8, and the horizontal ribs 11 connect each support column 9; one end of the reinforcing rib 10 is connected to the support column 9, and the other end is connected to the horizontal rib 11, which serves to strengthen it; several pads 12 are placed on the lower end face of each support column 9.

[0027] Preferably, the pad 12 is placed in contact with the support surface.

[0028] Preferably, the distance between the intersection points of two adjacent reinforcing ribs 7 and the outer ring is no more than 500mm.

[0029] Preferably, there are no fewer than two protective chains 5, with a spacing of 200mm-300mm.

[0030] Preferably, the height of the outer guardrail 1 is not less than 1000mm.

[0031] Preferably, the height of the inner guardrail 4 is not less than 500mm.

[0032] Preferably, the annular pedal 6, the reinforcing rib 7, and the annular support plate 8 are connected by bolts, with the number of bolts being no less than 10.

[0033] Preferably, both the outer guardrail 1 and the inner guardrail 4 are composed of several posts; the distance between two adjacent posts is no more than 150mm.

[0034] Based on thorough on-site measurements, this invention proposes a ring-shaped operating platform to ensure operator safety. Its advantages are significantly better than using stepped or semi-circular spliced ​​ring platforms, greatly improving the convenience of on-site operation and the level of personnel safety.

[0035] This utility model employs four supporting pillars that contact the supporting surface via pads, distributing pressure across the surface to ensure stability during use. The four supporting pillars are reinforced with horizontal and diagonal ribs, and their upper ends are welded to a ring-shaped support plate to ensure rigidity during operation. The ring-shaped operating platform is constructed from a ring-shaped footboard welded with reinforcing ribs, which are evenly distributed along the footboard to enhance platform rigidity and ensure safety for personnel working on it. The outer perimeter railing of the ring platform is constructed from 1-meter-high stainless steel pipes spaced 0.15 meters apart, protecting the operator's safety. The inner perimeter railing is constructed from 0.5-meter-high stainless steel pipes spaced 0.15 meters apart, ensuring the shell is not compromised by excessive gaps due to misalignment.

[0036] During use, the corresponding cover plate is hoisted out according to the shell diameter, the shell is hoisted into the assembly pit, the cover plate guardrail is removed, and the circular operating platform is lifted using a 4-hook lifting tool and placed into position from top to bottom. Steps are placed at the entrance, and personnel enter the operating platform via the steps.

[0037] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

[0038] The contents not described in detail in this utility model specification are common knowledge to those skilled in the art.

Claims

1. A ring-shaped operating platform, characterized in that, It includes an outer guardrail (1), a ring-shaped operating platform (2), a base (3), an inner guardrail (4), and a protective chain (5); wherein, the ring-shaped operating platform (2) is a ring structure; the ring-shaped operating platform (2) is installed on the base (3); the outer guardrail (1) is vertically connected to the outer ring of the ring structure; the outer guardrail (1) is provided with an entrance; the protective chain (5) is detachably installed on the entrance of the outer guardrail (1); the inner guardrail (4) is vertically connected to the inner ring of the ring structure; the protective chain (5) is in a protective state during operation, and the operator stands on the upper surface of the ring-shaped operating platform (2) during operation, with the outer guardrail (1) protecting the back and the inner guardrail (4) protecting the front; before work, the ring-shaped operating platform (2) is placed in the assembly pit to ensure that the center hole of the ring-shaped operating platform (2) is concentric with the assembly pit.

2. The ring-shaped operating platform according to claim 1, characterized in that, The ring-shaped operating platform (2) includes an inner ring, an outer ring, a ring-shaped pedal (6), and a first reinforcing rib (7); wherein, a plurality of first reinforcing ribs (7) are radially distributed between the inner ring and the outer ring, with one end connected to the inner ring and the other end connected to the outer ring; the ring-shaped pedal (6) is placed on the first reinforcing rib (7).

3. The ring-shaped operating platform according to claim 1, characterized in that: The base (3) includes an annular support plate (8), support columns (9), second reinforcing ribs (10), horizontal ribs (11), and pads (12); wherein, several support columns (9) are vertically installed on the lower surface of the annular support plate (8) to support the annular support plate (8), and the horizontal ribs (11) connect each support column (9); one end of the second reinforcing rib (10) is connected to the support column (9), and the other end is connected to the horizontal rib (11) to strengthen it; several pads (12) are placed on the lower end face of each support column (9).

4. A ring-shaped operating platform according to claim 1, characterized in that: When placing the pad (12), ensure that it is in contact with the support surface.

5. A ring-shaped operating platform according to claim 2, characterized in that: The distance between the intersection points of two adjacent first reinforcing ribs (7) and the outer ring is no more than 500mm.

6. A ring-shaped operating platform according to claim 1, characterized in that: The protective chain (5) shall consist of no fewer than two chains with a spacing of 200mm-300mm.

7. A ring-shaped operating platform according to claim 1, characterized in that: The height of the outer guardrail (1) is not less than 1000mm.

8. A ring-shaped operating platform according to claim 1, characterized in that: The height of the inner guardrail (4) shall not be less than 500mm.

9. A ring-shaped operating platform according to claim 2, characterized in that: The annular pedal (6), the first reinforcing rib (7), and the annular support plate (8) are connected by bolts, with no less than 10 bolts.

10. A ring-shaped operating platform according to claim 1, characterized in that: Both the outer guardrail (1) and the inner guardrail (4) are composed of several posts; the distance between two adjacent posts is no more than 150mm.