High-pressure chamber opening and closing door mechanism

Abstract

The utility model relates to high pressure cabin equipment technical field discloses a high pressure cabin opening and closing door mechanism, including high pressure cabin door, set up in the fixed base behind high pressure cabin door to and be used for installing locking mechanism's limit seat, the mechanism still includes the quick release mechanism for realizing quick dismounting between limit seat and fixed base. Quick release mechanism includes the button of setting up in fixed base, with the fixed ring and moving ring of button fixed connection, the stopper for moving ring sliding and spring no. 2. Locking mechanism installs on limit seat, and it includes spring assembly and locking rod, and spring assembly includes locking ring and spring no. 1. Locking mechanism still includes the handle for driving, handle connecting rod, long connecting rod and moving connecting rod. The utility model discloses through setting up quick release mechanism, has realized the quick dismounting of limit seat with spring assembly, simple structure, convenient operation has greatly promoted the maintainability of equipment and has reduced the maintenance downtime.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure chamber equipment technology, and in particular to a high-pressure chamber door opening and closing mechanism. Background Technology

[0002] Hyperbaric chambers, as pressure-bearing devices operating in special environments, are widely used in fields such as medical treatment, diving, aerospace, and scientific experiments. The hyperbaric chamber door is a key component ensuring the isolation of the internal and external pressure environments; its safety and reliability are paramount. Therefore, hyperbaric chamber doors are typically equipped with complex and robust opening and closing mechanisms to ensure tight and reliable locking under significant pressure differences.

[0003] In existing high-pressure chamber door opening and closing mechanisms, spring assemblies are commonly used as key energy storage and force-applying elements to provide continuous and stable locking force. Through their elastic force, the spring assembly ensures that components such as the locking lever remain in the predetermined locked position, thus preventing accidental loosening or opening of the door. However, as a metallic elastic element, the spring inevitably experiences metal fatigue after long-term repeated compression and release cycles, leading to a decrease in its elastic force, performance degradation, and even breakage in extreme cases. This directly affects the reliability of the entire locking mechanism.

[0004] Therefore, regular inspection and replacement of the spring assembly is essential maintenance for ensuring the safe operation of the hyperbaric chamber. However, in many traditional designs, the spring assembly is often integrated into the core of the locking mechanism, surrounded by multiple layers of connecting rods, supports, and other components. When the spring assembly needs replacement, maintenance personnel must first disassemble the entire door opening and closing mechanism from the door, removing handles, connecting rods, fixing seats, and other components one by one before they can access and replace the aging spring. After replacement, the assembly and testing must be performed in reverse order. This entire process is not only cumbersome and time-consuming, but also significantly increases equipment downtime and reduces equipment efficiency. Therefore, this invention proposes a hyperbaric chamber door opening and closing mechanism to address the shortcomings of existing technologies. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-pressure chamber opening and closing door mechanism, which aims to improve the problem of cumbersome and time-consuming disassembly and assembly process when replacing easily damaged parts such as springs in some high-pressure chamber opening and closing door mechanisms in the prior art.

[0006] This utility model provides a high-pressure chamber door opening and closing mechanism, including a high-pressure chamber door, a fixed base disposed behind the high-pressure chamber door, and a limiting seat for installing a locking mechanism; and a quick-release mechanism for realizing quick assembly and disassembly between the limiting seat and the fixed base.

[0007] The quick-release mechanism is the key to realizing the core function of this utility model. It mainly consists of a button, a fixed ring, a moving ring, a limiter, and a spring, all of which are set on the fixed base. The various components of the quick-release mechanism are integrated inside the fixed base.

[0008] Furthermore, the button is fixedly connected to the fixed ring and the moving ring, forming an operable integral component. The limiter has a hollow structure, which provides precise guidance and stroke limitation for the reciprocating sliding of the moving ring. The spring is located inside the limiter and always applies a reset thrust to the button assembly. Through this push-type snap-fit ​​structure in which the button, moving ring, limiter and spring work together, the limit seat is detachably locked to the fixed base.

[0009] Preferably, as a specific implementation of the quick-release mechanism, the upper position of the moving ring within the limiter corresponds to the unlocked state of the limit seat, while its lower position corresponds to the locked state of the limit seat. Under the pushing force of the button, the moving ring overcomes the elastic force of the second spring and slides from the lower end to the upper end. After the button is released, it automatically resets from the upper end to the lower end under the elastic force of the second spring, thus achieving convenient operation and reliable state switching.

[0010] Preferably, the locking mechanism is modularly mounted on a detachable limiting seat. The locking mechanism includes a spring assembly disposed inside the limiting seat and a locking rod for cooperating with the spring assembly to achieve locking. This design allows the spring assembly, which is a core vulnerable component, to be quickly removed along with the limiting seat, facilitating offline replacement or maintenance.

[0011] Preferably, as a specific construction of the spring assembly, it includes a locking ring and a spring. The spring is arranged around the outer periphery of the locking ring to generate a strong rebound force after the locking rod is compressed. The rebound force acts on the locking rod through the locking ring, and finally reliably locks the locking rod in a predetermined position.

[0012] Preferably, as a complete embodiment of the locking mechanism, it further includes a handle for driving the movement of the locking lever, and a handle link, a long link and a moving link for transmission between the handle and the locking lever. This linkage mechanism converts the rotation operation of the handle into an effective locking action of the locking lever.

[0013] Preferably, in order to achieve reliable torque transmission, the locking rod is fixedly connected to the end of the moving link and moves synchronously with the rotation of the moving link to precisely compress or disengage the spring assembly, thereby completing the locking or unlocking action.

[0014] Preferably, as a complete application scenario, the high-pressure chamber opening and closing door mechanism also includes the high-pressure chamber body. The high-pressure chamber door is connected to the high-pressure chamber body in an openable and closable manner through the high-pressure chamber opening and closing door mechanism described in this utility model, thereby achieving effective sealing of the high-pressure environment.

[0015] Preferably, as a specific connection method of the above-mentioned linkage mechanism, the handle and the handle link are rotatably connected, the handle link and the long link are rotatably connected, and the long link and the moving link are rotatably connected, which ensures the flexibility and smoothness of the entire transmission chain movement.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model, by setting a quick-release mechanism, includes a button, a fixed ring, a moving ring, a limiter, and a second spring. By pressing the button, the limit seat with the spring assembly can be quickly disassembled and installed. This solves the problem that in the prior art, when replacing vulnerable parts such as springs in the high-pressure chamber locking mechanism, the entire disassembly is required, which is cumbersome, time-consuming, labor-intensive, and has low maintenance efficiency. It achieves the technical effect of simple structure, convenient operation, and can greatly improve the maintainability of the equipment and reduce maintenance downtime.

[0018] 2. This utility model solves the technical requirement of stable and reliable locking of high-pressure chamber doors under huge pressure difference by setting up a linkage locking mechanism composed of a handle, handle linkage, long linkage, moving linkage and locking rod. The locking rod is driven by the linkage transmission to cooperate with the locking ring of the spring assembly to lock. This achieves the technical effect of stable locking, reliable structure and strong sealing, effectively ensuring the operational safety of the high-pressure chamber.

[0019] 3. This utility model solves the problems of traditional integrated mechanisms, unclear functional divisions, and the need for extensive maintenance by modularly integrating the locking mechanism and quick-release mechanism and installing functional components on detachable limit seats. It achieves the technical effect of compact overall structure, clear functions, and convenient production assembly and component maintenance. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a high-pressure chamber opening and closing door mechanism proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the locking structure of a high-pressure chamber opening and closing door mechanism proposed in this utility model;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4A schematic diagram of a quick-release structure for a high-pressure chamber opening and closing door mechanism proposed in this utility model;

[0024] Legend:

[0025] 1. Main body of the high-pressure chamber; 2. High-pressure chamber door; 3. Handle;

[0026] 4. Locking mechanism; 41. Handle linkage; 42. Long linkage; 43. Moving linkage; 44. Locking rod; 45. Limit seat; 46. Spring assembly; 461. Locking ring; 462. Spring 1;

[0027] 5. Quick-release mechanism; 51. Button; 52. Retaining ring; 53. Moving ring; 54. Limiter; 55. Spring II;

[0028] 6. Fix the base. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example:

[0031] Reference Figures 1 to 4 This utility model provides a high-pressure chamber opening and closing door mechanism, which aims to solve the problem that the replacement process of vulnerable parts of the high-pressure chamber opening and closing door mechanism is complicated and the maintenance efficiency is low in the prior art.

[0032] like Figure 1 As shown, the high-pressure chamber opening and closing door mechanism is applied to the high-pressure chamber body 1. The high-pressure chamber door 2 is openably and closably connected to the high-pressure chamber body 1 through the high-pressure chamber opening and closing door mechanism. The high-pressure chamber opening and closing door mechanism includes a fixed base 6 fixedly connected to the back of the high-pressure chamber door 2, and a limiting seat 45 detachably connected to the fixed base 6. The fixed base 6 serves as the installation platform for the entire opening and closing door mechanism, providing a foundation for the installation of the locking mechanism 4 and the quick-release mechanism 5. The limiting seat 45 is used to support the spring assembly 46 in the locking mechanism 4. The quick-release mechanism 5 enables the separation and assembly of the limiting seat 45 and the fixed base 6, thereby facilitating the quick replacement of the spring assembly 46.

[0033] Reference Figure 4The quick-release mechanism 5 includes a button 51, a fixed ring 52, a movable ring 53, a limiter 54, and a second spring 55, all mounted on the fixed base 6. The button 51 is fixedly connected to the fixed ring 52 and the movable ring 53. The limiter 54 is hollow inside the fixed base 6 and provides a sliding guide for the movable ring 53. The second spring 55 is located inside the limiter 54 and provides a return force for the button 51. In the assembled state, when the button 51 is pressed, it overcomes the spring force of the second spring 55, causing the fixed ring 52 and the movable ring 53 to move together, allowing the movable ring 53 to return to its original position within the limiter 54. The inner ring 53 slides to its upper end, at which position the limiting ring 53 releases its limit on the limiting seat 45, allowing the limiting seat 45 to be easily removed from or installed on the fixed base 6. When the button 51 is released, under the elastic force of the spring 55, the button 51 drives the moving ring 53 to return to the lower end of the limiter 54. At this time, the moving ring 53 and the fixed ring 52 re-lock the limiting seat 45. This push-type snap-fit ​​structure, which works in concert with the button 51, the moving ring 53, the limiter 54 and the spring, ensures that the limiting seat 45 can be installed and removed quickly and reliably, greatly improving the convenience of maintenance.

[0034] The upper position of the movable ring 53 within the limiter 54 is used to unlock the limit seat 45, and the lower position within the limiter 54 is used to lock the limit seat 45. Under the pushing force of the button 51, the movable ring 53 overcomes the elastic force of the second spring 55 and slides from the lower end to the upper end, and under the elastic force of the second spring 55, it automatically resets from the upper end to the lower end.

[0035] Reference Figure 2 and Figure 3 The locking mechanism 4 is mounted on the limiting seat 45. The locking mechanism 4 includes a spring assembly 46 disposed inside the limiting seat 45, and a locking rod 44 for cooperating with the spring assembly 46 to achieve locking. The spring assembly 46 specifically includes a locking ring 461 and a spring 462, wherein the spring 462 is disposed around the outer periphery of the locking ring 461.

[0036] Reference Figure 2 The locking mechanism 4 also includes a handle 3 for driving the locking rod 44 to move, and a handle link 41, a long link 42 and a moving link 43 for transmission between the handle 3 and the locking rod 44. The handle 3 is rotatably connected to the handle link 41, the handle link 41 is rotatably connected to the long link 42, the long link 42 is rotatably connected to the moving link 43, and the locking rod 44 is fixedly connected to the end of the moving link 43.

[0037] The implementation principle of this application embodiment is as follows: When it is necessary to lock the high-pressure chamber door 2, rotate the handle 3. The handle 3 drives the handle connecting rod 41 to move through the rotation connection. The handle connecting rod 41 then drives the long connecting rod 42. The long connecting rod 42 then drives the moving connecting rod 43 to rotate. As the moving connecting rod 43 rotates, the locking rod 44 fixed at its end moves downward and presses the spring assembly 46 installed in the limiting seat 45. In the spring assembly 46, the spring 462 generates elastic force after being compressed. This elastic force acts on the locking ring 461, and finally locks the locking rod 44 firmly on the locking ring 461, thereby completing the reliable locking of the high-pressure chamber door 2.

[0038] When the spring assembly 46 needs to be replaced, operate the quick-release mechanism 5. First, press the button 51 under the fixed base 6. The button 51 overcomes the elastic force of the second spring 55 under the pushing force, and drives the moving ring 53 to slide to the upper position of the limiter 54. At this position, the lock on the limit seat 45 is released. At this time, the entire limit seat 45 containing the spring assembly 46 can be removed from the fixed base 6 for replacement. After the replacement is completed, align the new limit seat 45 with the fixed base 6 and install it. Release the button 51. The elastic force of the second spring 55 pushes the button 51 to reset and drives the moving ring 53 to slide to the lower position of the limiter 54, locking the limit seat 45 back onto the fixed base 6. Through the synergistic action of the quick-release mechanism 5, this utility model realizes the quick disassembly and assembly of the core vulnerable parts of the locking mechanism 4, solving the problem of inconvenient maintenance in the prior art.

Claims

1. A high-pressure chamber door opening and closing mechanism, comprising a high-pressure chamber door (2), a fixed base (6) disposed behind the high-pressure chamber door (2), and a limiting seat (45) for mounting a locking mechanism (4), characterized in that, The high-pressure chamber opening and closing mechanism also includes a quick-release mechanism (5) for quickly assembling and disassembling the limiting seat (45) and the fixed base (6). The quick-release mechanism (5) includes a button (51) disposed on the fixed base (6), a fixed ring (52) and a movable ring (53) fixedly connected to the button (51), a limiter (54) for sliding the movable ring (53), and a second spring (55).

2. The hyperbaric chamber door opening and closing mechanism according to claim 1, characterized in that, The movable ring (53) is pushed into the upper end of the limiter (54) by the pushing force of the button (51) to unlock the limit seat (45), and is pushed to the lower end of the limiter (54) by the elastic force of the second spring (55) to lock the limit seat (45).

3. The high-pressure chamber opening and closing door mechanism according to claim 1, characterized in that, The locking mechanism (4) includes a spring assembly (46) disposed within the limiting seat (45) and a locking rod (44) for cooperating with the spring assembly (46) to achieve locking.

4. The high-pressure chamber door opening and closing mechanism according to claim 3, characterized in that, The spring assembly (46) includes a locking ring (461) and a spring (462), the spring (462) being arranged around the outer periphery of the locking ring (461) for generating elastic force after the locking rod (44) is pressed to lock the locking rod (44) onto the locking ring (461).

5. A high-pressure chamber door opening and closing mechanism according to claim 3, characterized in that, The locking mechanism (4) further includes a handle (3) for driving the locking rod (44) to move, and a handle link (41), a long link (42) and a moving link (43) that are rotatably connected between the handle (3) and the locking rod (44) in sequence.

6. A high-pressure chamber door opening and closing mechanism according to claim 5, characterized in that, The locking rod (44) is fixedly connected to the end of the movable link (43) and moves with the rotation of the movable link (43) to compress the spring assembly (46).

7. The high-pressure chamber opening and closing door mechanism according to claim 1, characterized in that, The high-pressure chamber opening and closing mechanism also includes a high-pressure chamber body (1), and the high-pressure chamber door (2) is openably and closably connected to the high-pressure chamber body (1) through the high-pressure chamber opening and closing mechanism.

8. A high-pressure chamber door opening and closing mechanism according to claim 5, characterized in that, The handle (3) is rotatably connected to the handle link (41), the handle link (41) is rotatably connected to the long link (42), and the long link (42) is rotatably connected to the moving link (43).

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