A detachable spring hinge structure

Abstract

The utility model relates to hinge technical field provides a kind of detachable spring hinge structure, including first mounting plate and second mounting plate, the edge of first mounting plate and second mounting plate is overlapped and is arranged, first mounting seat is provided on the first mounting plate, pin shaft is arranged in the first mounting seat, second mounting seat is provided on the second mounting plate, the through hole for pin shaft to pass through is opened in the second mounting seat, spring is sleeved in the both ends of pin shaft, the spring is slidably connected with pin shaft, the spring is respectively fixedly connected with first mounting plate and second mounting plate, limiting piece is provided on the second mounting plate, the limiting piece is used to limit the position of pin shaft on second mounting seat, the utility model can keep drilling platform guardrail gate normally closed.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and more specifically, to a detachable spring hinge structure. Background Technology

[0002] The content in this section only provides background information related to this utility model and may not constitute prior art.

[0003] In the high-risk working environment of oil drilling platforms, the guardrail system at the edge of the platform is one of the most important lines of defense to ensure the safety of personnel. The normally closed doors on the guardrails are the only passage for personnel, equipment and materials to enter and exit the work area, and their safety performance is of paramount importance. Ideally, these doors should always be closed and locked when not actively used to effectively prevent personnel from accidentally approaching the edge of the platform due to negligence in busy, slippery or poor visibility conditions, thereby avoiding serious accidents such as falling into the sea.

[0004] However, the existing common technical solutions have the following defects: many drilling platform guardrail doors use ordinary hinge pin structures. These structures usually only realize the door's rotation function. In actual use, after the door is pushed open, it often needs to be manually pushed back and the latch or buckle needs to be inserted before it can be closed again. This operation is very easy to be omitted due to the haste or forgetfulness of the personnel, resulting in the guardrail door often being in an ineffective open state, which poses a serious threat to the life safety of the workers on the drilling platform. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a detachable spring hinge structure that can keep the drilling platform guardrail door closed.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A detachable spring hinge structure includes a first mounting plate and a second mounting plate, the edges of which overlap. A first mounting seat is provided on the first mounting plate, and a pin passes through the first mounting seat. A second mounting seat is provided on the second mounting plate, and a through hole is provided on the second mounting seat for the pin to pass through. Springs are sleeved on both ends of the pin, and the springs are slidably connected to the pin. The springs are fixedly connected to the first mounting plate and the second mounting plate respectively. A limiting member is provided on the second mounting plate to limit the position of the pin on the second mounting seat.

[0008] In some possible embodiments, a limiting rod is fixedly provided on the pin shaft. A first strip hole is formed on the top of the first mounting base along the length direction of the first mounting base. The limiting rod is slidably disposed in the first strip hole. A second strip hole is formed on the top of the second mounting base. The second strip hole is connected to the first strip hole. A first slot is formed at the end of the first strip hole away from the second strip hole. A second slot is formed at the end of the second strip hole away from the first strip hole. Both the first slot and the second slot are for the limiting rod to be engaged.

[0009] In some possible embodiments, the limiting member is configured as a plug rod, the second mounting plate has a through mounting hole, the limiting member slides through the mounting hole, one end of the pin has a limiting hole for the limiting member to be inserted, and the second mounting plate is provided with an elastic member, the elastic member acts on the limiting member to make the limiting member have a tendency to move toward the limiting hole.

[0010] In some possible embodiments, a boss is coaxially fixed at the end of the limiting member away from the pin, the diameter of the boss being larger than that of the limiting member. The elastic member is provided with a tension spring, the elastic member is sleeved on the limiting member, one end of the elastic member is fixedly connected to the boss, and the other end is fixedly connected to the side wall of the second mounting plate.

[0011] In some possible embodiments, a frustum is coaxially fixed at the end of the pin away from the limiting member, the diameter of the frustum being larger than that of the pin, and one end of the spring abutting against the side wall of the frustum.

[0012] In some possible embodiments, the sidewall of the limiting rod is covered with an anti-slip layer, which is made of silicone rubber.

[0013] In some possible embodiments, the spring is fixedly connected to the first mounting plate by welding.

[0014] In some possible embodiments, the spring and the second mounting plate are fixedly connected by adhesive bonding.

[0015] In summary, the technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0016] 1. By setting a pin and spring structure between the first and second mounting plates, the spring is slidably connected to the pin and fixed to the two mounting plates respectively. When the guardrail gate is pushed open, the spring is compressed and stores energy; once the gate is released, the spring automatically releases the energy, driving the gate to quickly return to the closed state. This design effectively solves the defect of existing hinges that require manual closing, ensuring that the drilling platform guardrail gate is always closed during non-passage periods, thereby significantly reducing the risk of the gate opening due to personnel negligence or busy operation, and preventing safety accidents such as accidental falls into the sea. Especially in high-risk operating environments, such as slippery or low-visibility platform edges, this automatic reset mechanism requires no manual intervention, greatly improving overall safety and operational convenience.

[0017] 2. A limiting rod is installed on the pin, which mates with the first and second slots and the first and second grooves on the first and second mounting seats. This allows the pin to easily engage or disengage from the grooves via the sliding limiting rod, enabling quick disassembly and assembly of the hinge. This structure simplifies the maintenance process, allowing users to perform regular inspections, cleaning, or component replacements of the hinge without special tools. It is particularly suitable for the frequent maintenance needs of harsh environments such as offshore platforms. Simultaneously, the detachability reduces the probability of the entire hinge becoming unusable due to localized wear, extending the equipment's lifespan and reducing long-term maintenance costs.

[0018] 3. A combination of limiting and elastic components is used. The limiting component automatically inserts into the limiting hole at the end of the pin under the action of the elastic component, thus firmly locking the pin in place on the second mounting base. This mechanism effectively resists the risk of loosening caused by external vibration, impact, or frequent opening and closing of the door, ensuring the stability of the hinge under dynamic loads. In high-pressure environments such as oil drilling platforms, reliable hinge operation is crucial. This design avoids door shaking or failure due to pin displacement, ensuring the overall structural integrity and safety performance of the guardrail system.

[0019] 4. A silicone rubber anti-slip layer is applied to the side wall of the limit rod to enhance grip during operation and prevent slippage; the spring and mounting plate are fixed by welding and bonding to ensure the firmness of the connection point, resist corrosion and fatigue, and enable the hinge to adapt to the harsh conditions of high humidity, high salinity and temperature changes on offshore platforms, reducing the possibility of component aging or failure. The overall structure takes into account both strength and toughness, and is not only suitable for conventional industrial scenarios, but also shows excellent durability and wide application potential in high-risk operating environments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0021] Figure 2 This is a cross-sectional view of the second mounting plate according to an embodiment of the present utility model;

[0022] Figure 3 for Figure 2 Enlarged view of part A in the image.

[0023] Icons: 1. First mounting plate; 11. First mounting base; 12. Pin; 13. First strip hole; 14. First slot; 2. Second mounting plate; 21. Second mounting base; 22. Through hole; 23. Second strip hole; 24. Second slot; 3. Spring; 4. Limiting rod; 5. Limiting component; 51. Mounting hole; 52. Limiting hole; 53. Elastic component; 54. Boss; 6. Frustum. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] The following is for reference Figures 1 to 3 The present invention will be described in further detail below.

[0026] Reference Figure 1 , Figure 2 and Figure 3 A detachable spring 3 hinge structure includes a first mounting plate 1 and a second mounting plate 2, with the edges of the first mounting plate 1 and the second mounting plate 2 overlapping. A first mounting seat 11 is provided on the first mounting plate 1, and a pin 12 passes through the first mounting seat 11. A second mounting seat 21 is provided on the second mounting plate 2, and a through hole 22 is provided on the second mounting seat 21 for the pin 12 to pass through. Springs 3 are sleeved on both ends of the pin 12, and the springs 3 are slidably connected to the pin 12. The springs 3 are fixedly connected to the first mounting plate 1 and the second mounting plate 2 respectively. A limiting member 5 is provided on the second mounting plate 2, and the limiting member 5 is used to limit the position of the pin 12 on the second mounting seat 21.

[0027] Reference Figure 1 , Figure 2 and Figure 3A limiting rod 4 is fixedly installed on the pin 12. A first strip hole 13 is opened on the top of the first mounting base 11 along the length direction of the first mounting base 11. The limiting rod 4 is slidably installed in the first strip hole 13. A second strip hole 23 is opened on the top of the second mounting base 21. The second strip hole 23 is connected to the first strip hole 13. A first slot 14 is opened at the end of the first strip hole 13 away from the second strip hole 23. A second slot 24 is opened at the end of the second strip hole 23 away from the first strip hole 13. The first slot 14 and the second slot 24 are both for the limiting rod 4 to be inserted.

[0028] Reference Figure 1 , Figure 2 and Figure 3 The limiting member 5 is set as a plug rod, and the second mounting plate 2 has a through mounting hole 51. The limiting member 5 slides through the mounting hole 51. One end of the pin shaft 12 has a limiting hole 52 for the limiting member 5 to be inserted. The second mounting plate 2 is provided with an elastic member 53. The elastic member 53 acts on the limiting member 5 so that the limiting member 5 has a tendency to move toward the limiting hole 52.

[0029] Reference Figure 1 , Figure 2 and Figure 3 The end of the limiting member 5 away from the pin 12 is coaxially fixed with a boss 54. The diameter of the boss 54 is larger than that of the limiting member 5. The elastic member 53 is provided with a tension spring. The elastic member 53 is sleeved on the limiting member 5. One end of the elastic member 53 is fixedly connected to the boss 54, and the other end is fixedly connected to the side wall of the second mounting plate 2.

[0030] Reference Figure 1 , Figure 2 and Figure 3 A frustum 6 is coaxially fixed at the end of the pin 12 away from the limiting member 5. The diameter of the frustum 6 is larger than that of the pin 12. One end of the spring 3 abuts against the side wall of the frustum 6.

[0031] As one possible implementation of this utility model, the side wall of the limiting rod 4 is covered with an anti-slip layer, which is made of silicone rubber.

[0032] In one possible implementation of this utility model, the spring 3 is fixedly connected to the first mounting plate 1 by welding, and the spring 3 is fixedly connected to the second mounting plate 2 by adhesive bonding.

[0033] The implementation principle of the detachable spring 3 hinge structure proposed in this embodiment of the utility model is as follows:

[0034] By setting a pin 12 and a spring 3 between the first mounting plate 1 and the second mounting plate 2, the spring 3 is slidably connected to the pin 12 and fixed to the two mounting plates respectively. When the guardrail gate is pushed open, the spring 3 is compressed and stores energy; once the gate is released, the spring 3 automatically releases energy, driving the gate to quickly return to the closed state. This design effectively solves the defect of existing hinges that require manual closing, ensuring that the drilling platform guardrail gate is always closed during non-passage periods, thereby significantly reducing the risk of the gate opening due to personnel negligence or busy operation, and preventing safety accidents such as accidental falls into the sea. Especially in high-risk operating environments, such as slippery or low-visibility platform edges, this automatic reset mechanism requires no manual intervention, greatly improving overall safety and operational convenience.

[0035] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A detachable spring (3) hinge structure, characterized in that: The system includes a first mounting plate (1) and a second mounting plate (2), with the edges of the first mounting plate (1) and the second mounting plate (2) overlapping. The first mounting plate (1) is provided with a first mounting seat (11), and a pin (12) is inserted through the first mounting seat (11). The second mounting plate (2) is provided with a second mounting seat (21), and a through hole (22) is provided on the second mounting seat (21) for the pin (12) to pass through. Springs (3) are sleeved on both ends of the pin (12), and the springs (3) are slidably connected to the pin (12). The springs (3) are fixedly connected to the first mounting plate (1) and the second mounting plate (2) respectively. A limiting member (5) is provided on the second mounting plate (2), and the limiting member (5) is used to limit the position of the pin (12) on the second mounting seat (21).

2. The detachable spring (3) hinge structure according to claim 1, characterized in that: A limiting rod (4) is fixedly provided on the pin (12). A first strip hole (13) is provided on the top of the first mounting base (11) along the length direction of the first mounting base (11). The limiting rod (4) is slidably disposed in the first strip hole (13). A second strip hole (23) is provided on the top of the second mounting base (21). The second strip hole (23) is connected to the first strip hole (13). A first slot (14) is provided at the end of the first strip hole (13) away from the second strip hole (23). A second slot (24) is provided at the end of the second strip hole (23) away from the first strip hole (13). The first slot (14) and the second slot (24) are both for the limiting rod (4) to be inserted.

3. The detachable spring (3) hinge structure according to claim 2, characterized in that: The limiting member (5) is configured as a plug rod. The second mounting plate (2) has a through mounting hole (51). The limiting member (5) slides through the mounting hole (51). One end of the pin (12) has a limiting hole (52) for the limiting member (5) to be inserted. The second mounting plate (2) is provided with an elastic member (53). The elastic member (53) acts on the limiting member (5) so that the limiting member (5) has a tendency to move toward the limiting hole (52).

4. The detachable spring (3) hinge structure according to claim 3, characterized in that: The limiting member (5) has a boss (54) coaxially fixed at one end away from the pin (12). The diameter of the boss (54) is larger than that of the limiting member (5). The elastic member (53) is provided with a tension spring. The elastic member (53) is sleeved on the limiting member (5). One end of the elastic member (53) is fixedly connected to the boss (54), and the other end is fixedly connected to the side wall of the second mounting plate (2).

5. The detachable spring (3) hinge structure according to claim 4, characterized in that: A frustum (6) is coaxially fixed at one end of the pin (12) away from the limiting member (5). The diameter of the frustum (6) is larger than that of the pin (12). One end of the spring (3) abuts against the side wall of the frustum (6).

6. The detachable spring (3) hinge structure according to claim 2, characterized in that: The side wall of the limiting rod (4) is covered with an anti-slip layer, which is made of silicone rubber.

7. The detachable spring (3) hinge structure according to claim 1, characterized in that: The spring (3) is fixedly connected to the first mounting plate (1) by welding.

8. The detachable spring (3) hinge structure according to claim 7, characterized in that: The spring (3) is fixedly connected to the second mounting plate (2) by adhesive bonding.

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