Square pressure-resistant bin with buckle type quick release locking device

Abstract

This utility model relates to a square pressure tank with a snap-on quick-release locking device, which solves the technical problems of existing pressure tank structures that use bolts and flanges to fasten the cover to the tank body, resulting in low disassembly and assembly efficiency, easy degradation of sealing performance after repeated disassembly and assembly, high maintenance costs, and poor adaptability. It includes a square pressure tank body, a square top cover, a sealing ring, and four sets of snap-on quick-release locking devices. Each snap-on quick-release locking device includes a fixing block, a U-shaped rod, a base, a handle, a pin, a lower left nut, an upper left nut, a lower right nut, and an upper right nut. The fixing block is fixedly connected to the side of the square pressure tank body, the base is fixedly connected to the square top cover, and the four sets of snap-on quick-release locking devices are located at the four corners of the square top cover. This utility model is suitable for use on underwater exploration equipment and deep-sea operation instruments.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel and marine engineering equipment technology, and more specifically, to a square pressure hopper with a snap-lock device. Background Technology

[0002] Underwater exploration equipment, deep-sea operation instruments, and other marine engineering equipment are often equipped with pressure tanks. Currently, the basic structure of a pressure tank involves bolting the lid to the top opening of the tank body, and using a sealing ring between the lid and the opening. Some products also use flanges for auxiliary sealing. For example, invention application CN118514842A discloses a bolted connection structure. However, this type of structure has the following drawbacks:

[0003] (1) The disassembly and assembly efficiency is low. Special tools such as wrenches are needed to loosen / tighten the bolts one by one. It takes an average of 20-30 minutes to complete one disassembly and assembly, which is difficult to meet the needs of emergency maintenance and rapid equipment replacement.

[0004] (2) The sealing performance is easily degraded. After repeated disassembly and assembly, the bolts are prone to stress relaxation. The compression of the flange sealing gasket is difficult to control accurately, which can easily lead to failure of the internal sealing of the pressure chamber, water ingress and other faults.

[0005] (3) High maintenance costs. Bolts, flanges and other connecting parts are prone to corrosion in high water pressure and high salt spray environment for a long time. This not only increases the frequency of spare parts replacement, but also makes it difficult to disassemble the head due to rust jamming. Additional maintenance procedures such as rust removal and cutting are required.

[0006] (4) Poor adaptability: Traditional connection structures are mostly customized designs, and the disassembly heads of different specifications of pressure chambers cannot be used interchangeably, which increases the overall supporting cost of the equipment. Summary of the Invention

[0007] This application aims to solve the technical problems of existing pressure silo structures that use bolts and flanges to fasten the cover to the silo body, such as low disassembly and assembly efficiency, easy degradation of sealing performance after repeated disassembly and assembly, high maintenance cost, and poor adaptability. It provides a square pressure silo with a snap-on quick-release locking device, which has high disassembly and assembly efficiency, does not affect sealing performance after repeated disassembly and assembly, has low maintenance cost, and strong adaptability.

[0008] This application provides a square pressure chamber with a snap-on quick-release locking device, including a square pressure chamber body, a square top cover, a sealing ring, and four sets of snap-on quick-release locking devices. The sealing ring is connected between the top opening of the square top cover and the square pressure chamber body. The snap-on quick-release locking device includes a fixing block, a U-shaped rod, a base, a handle, a pin, a lower left nut, an upper left nut, a lower right nut, and an upper right nut. The base has a handle connecting part, and the handle has a lower front end and an upper front end. The lower front end is hinged to the handle connecting part. The pin passes through the upper front end of the handle, and the upper front end can rotate around the pin. The upper part of the U-shaped rod has a left threaded part and a right threaded part. The threaded part passes through the left end of the pin, and the right threaded part passes through the right end of the pin. The lower left nut and the upper left nut are both connected to the left threaded part of the U-shaped rod. The left end of the pin is located between the lower left nut and the upper left nut. The lower right nut and the upper right nut are both connected to the right threaded part of the U-shaped rod. The right end of the pin is located between the lower right nut and the upper right nut. The fixing block has a groove and is fixedly connected to the side of the square pressure chamber body. The base is fixedly connected to the square top cover. The fixing block and the base are arranged at a 90° angle. When the handle is pressed down, the lower end of the U-shaped rod is located in the groove of the fixing block and a pulling force is applied. Four sets of snap-on quick-release locking devices are set at the four corners of the square top cover.

[0009] Preferably, the square pressure-resistant compartment with the snap-on quick-release locking device also includes a pull rope displacement sensor, which is connected to the square top cover. The pull rope of the pull rope displacement sensor is fixed to the handle of the snap-on quick-release locking device. There are four pull rope displacement sensors, which are matched with four sets of snap-on quick-release locking devices respectively.

[0010] More preferably, the square pressure-resistant chamber body has mounting grooves on both sides.

[0011] The beneficial effect of this disclosure is that it allows for the rapid assembly and disassembly of the square top cover without the need for special tools, reducing the assembly and disassembly time to less than 5 minutes per operation, thus significantly improving efficiency. It can meet the operational needs of emergency maintenance and rapid equipment replacement.

[0012] It ensures sealing performance and pressure resistance after multiple disassemblies and reassemblies, and is suitable for operating environments with water depths of 0-1000m.

[0013] The snap-on quick-release locking device is low in cost, resulting in low maintenance costs for the square pressure chamber; the absence of bolts, flanges, and other easily corroded connecting parts reduces the use of easily corroded components and extends the overall service life of the pressure chamber.

[0014] Its versatility has been significantly improved, and it can be used for pressure silos of different specifications and sizes.

[0015] The square pressure tank is suitable for mounting underwater exploration equipment and deep-sea operation instruments.

[0016] Further features and aspects of this disclosure will be clearly described in the following detailed description with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 It is an isometric view of a square pressure-resistant chamber with a snap-lock mechanism;

[0018] Figure 2 yes Figure 1 The front view of the structure shown;

[0019] Figure 3 yes Figure 1 Top view of the structure shown;

[0020] Figure 4 yes Figure 3 A cross-sectional view along the AA direction;

[0021] Figure 5 yes Figure 1 Side view of the structure shown;

[0022] Figure 6 yes Figure 2 The diagram shows the structure of the first snap-on quick-release locking device.

[0023] Figure 7 yes Figure 6 Top view of the structure shown;

[0024] Figure 8 yes Figure 6 Left view of the structure shown;

[0025] Figure 9 This is a schematic diagram of the first snap-on quick-release locking device in the open state;

[0026] Figure 10 yes Figure 9 Side view of the structure shown;

[0027] Figure 11 This is a schematic diagram of a square pressure chamber with a pull rope displacement sensor installed on its square top cover.

[0028] Explanation of symbols in the diagram:

[0029] 1. Square pressure chamber body; 1-1. Mounting slot; 1-2. Mounting slot; 2. Square top cover; 3. Sealing ring; 4. First snap-on quick-release locking device; 4-1. Fixing block; 4-2. U-shaped rod; 4-3. Base; 4-3-1. Handle connection part; 4-4. Handle; 4-4-1. Lower front end; 4-4-2. Upper front end; 4-5. Pin; 4-6. Lower left nut; 4-7. Upper left nut; 4-8. Lower right nut; 4-9. Upper right nut; 4-10. Screw; 4-11. Screw; 5. Second snap-on quick-release locking device; 6. Third snap-on quick-release locking device; 7. Fourth snap-on quick-release locking device; 8. Pull rope displacement sensor; 8-1. Pull rope. Detailed Implementation

[0030] The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] The specific embodiments described below are merely preferred embodiments of this application, and the scope of protection of this application is not limited thereto. Those skilled in the art can make modifications or variations based on the principles, concepts, and spirit of this application, and the resulting technical solutions should all be covered within the scope of protection of this application.

[0032] like Figure 1-8As shown, the square pressure-resistant chamber with a snap-on quick-release locking device includes a square pressure-resistant chamber body 1, a square top cover 2, a sealing ring 3, and four sets of snap-on quick-release locking devices. A sealing ring 3 is provided between the square top cover 2 and the top opening of the square pressure-resistant chamber body 1. The square top cover 2 is locked to the top opening of the square pressure-resistant chamber body 1 by the four sets of snap-on quick-release locking devices, which are in a locked, closed state. The four sets of snap-on quick-release locking devices are: first snap-on quick-release locking device 4, second snap-on quick-release locking device 5, third snap-on quick-release locking device 6, and fourth snap-on quick-release locking device 7. The first snap-on quick-release locking device 4 includes a fixing block 4-1, a U-shaped rod 4-2, a base 4-3, a handle 4-4, a pin 4-5, a lower left nut 4-6, an upper left nut 4-7, a lower right nut 4-8, an upper right nut 4-9, screws 4-10 and 4-11. The base 4-3 is provided with a handle connecting part 4-3-1. The handle 4-4 has a lower front part 4-4-1 and an upper front part 4-4-2. The lower front part 4-4-1 connects to the handle. The handle connection part 4-3-1 is hinged. Pin 4-5 passes through the upper front part 4-4-2 of the handle 4-4. The upper front part 4-4-2 can rotate around pin 4-5. The upper part of the U-shaped rod 4-2 has a left threaded portion and a right threaded portion. The left threaded portion passes through the left end of pin 4-5, and the right threaded portion passes through the right end of pin 4-5. The lower left nut 4-6 and the upper left nut 4-7 are both connected to the left threaded portion of the U-shaped rod 4-2. Pin 4- The left end of pin 4-5 is located between the lower left nut 4-6 and the upper left nut 4-7. The lower right nut 4-8 and the upper right nut 4-9 are both connected to the right threaded part of the U-shaped rod 4-2. The right end of pin 4-5 is located between the lower right nut 4-8 and the upper right nut 4-9. The fixing block 4-1 and the base 4-3 are arranged at 90° (for example, the base 4-3 is located on the horizontal plane, the fixing block 4-1 is located on the vertical plane, and the included angle between the two is 90°). The fixing block 4-1 has a groove. The fixing block 4-1 is fixedly installed on the side of the square pressure chamber body 1 by two screws 4-10. The base 4-3 is fixedly installed on the square top cover 2 by four screws 4-11. After the handle 4-4 is pressed down (at this time the handle 4-4 is close to the base 4-3), the lower end of the U-shaped rod 4-2 is located in the groove of the fixing block 4-1. The U-shaped rod 4-2 applies upward pulling force, thereby locking the square top cover 2 and fixing the square top cover 2.

[0033] The second snap-on quick-release locking device 5 has the same structure as the first snap-on quick-release locking device 4, the third snap-on quick-release locking device 6 has the same structure as the first snap-on quick-release locking device 4, and the fourth snap-on quick-release locking device 7 has the same structure as the first snap-on quick-release locking device 4. The first snap-on quick-release locking device 4, the second snap-on quick-release locking device 5, the third snap-on quick-release locking device 6, and the fourth snap-on quick-release locking device 7 are located at the four corners of the square top cover 2.

[0034] exist Figure 1-8 Based on the shown state, lifting the handle 4-4 of the first snap-lock device 4 upwards will put it in the open state, thus unlocking it. Figure 9 and 10 In the indicated state, handle 4-4 is away from base 4-3, the lower end of U-shaped rod 4-2 moves out of the groove in fixing block 4-1, and the lower end of U-shaped rod 4-2 disengages from fixing block 4-1, thus eliminating the pulling force. Similarly, lift the handles of the second snap-on quick-release locking device 5, the third snap-on quick-release locking device 6, and the fourth snap-on quick-release locking device 7 upwards to unlock. This allows for quick and convenient removal of the square top cover 2.

[0035] As can be seen, the installation, fixing, and disassembly of the square top cover 2 are quick and convenient. A single person can complete the assembly and disassembly, reducing the skill requirements for operators and making it suitable for on-site maintenance in complex marine operating environments. After 500 cycles of reciprocating assembly and disassembly tests, the sealing structure showed no leakage, and the snap-on quick-release locking device exhibited no jamming or failure, meeting reliability requirements. The sealing ring fits snugly against the upper surface of the top opening of the square top cover 2 and the square pressure-resistant tank body 1, forming a dual protection of "pre-pressure sealing and high-pressure self-tightening sealing" combined with the pressure from the locking structure.

[0036] It should be noted that the lower left nut 4-6 and the lower right nut 4-8 can be screwed down to move them downwards a certain distance, then the U-shaped rod 4-2 can be moved upwards. Then, the upper left nut 4-7 and the upper right nut 4-9 can be screwed down to move them downwards a certain distance, ultimately keeping the upper left nut 4-7 and the lower left nut 4-6 clamping the left end of the pin 4-5, and the upper right nut 4-9 and the lower right nut 4-8 clamping the right end of the pin 4-5. This shortens the working length of the U-shaped rod 4-2 and increases the locking force. Furthermore, different sizes of square pressure chamber body 1 and square top cover 2 can be used, significantly improving versatility.

[0037] It should be noted that a pull-string displacement sensor 8 can be installed on the square top cover 2, such as... Figure 11 As shown, the pull rope 8-1 of the pull rope displacement sensor 8 is fixed to the handle 4-4. During use of the square pressure chamber, if the handle 4-4 is lifted, causing the first snap-lock device 4 to unlock, the pull rope 8-1 will be pulled upwards along with the handle 4-4. The pull rope displacement sensor 8 will then send a signal to the alarm. Based on the alarm information, the staff can then determine that an abnormality has occurred and take timely measures to ensure that the square top cover 2 remains secure and firmly fixed. A total of four pull rope displacement sensors 8 are installed, with one pull rope displacement sensor matched to each snap-lock device.

[0038] like Figure 5 As shown, the square pressure-resistant chamber body 1 has mounting slots 1-1 and 1-2 on both sides for easy installation and fixation of the entire square pressure-resistant chamber. The dimensions of the square pressure-resistant chamber body 1 can be selected as follows: length 227mm, width 171mm, and height 94mm.

Claims

1. A square pressure-resistant chamber with a snap-lock type quick-release locking device, characterized in that, The device includes a square pressure chamber body, a square top cover, a sealing ring, and four sets of snap-on quick-release locking devices. The sealing ring connects the square top cover to the top opening of the square pressure chamber body. Each snap-on quick-release locking device includes a fixing block, a U-shaped rod, a base, a handle, a pin, a lower left nut, an upper left nut, a lower right nut, and an upper right nut. The base has a handle connection part. The handle has a lower front end and an upper front end. The lower front end is hinged to the handle connection part. The pin passes through the upper front end of the handle, allowing the upper front end to rotate around the pin. The upper part of the U-shaped rod has a left threaded portion and a right threaded portion. The left threaded portion passes through the left end of the pin, and the right threaded portion... The threaded part passes through the right end of the pin. The lower left nut and the upper left nut are both connected to the left threaded part of the U-shaped rod. The left end of the pin is located between the lower left nut and the upper left nut. The lower right nut and the upper right nut are both connected to the right threaded part of the U-shaped rod. The right end of the pin is located between the lower right nut and the upper right nut. The fixing block has a groove. The fixing block is fixedly connected to the side of the square pressure chamber body. The base is fixedly connected to the square top cover. The fixing block and the base are arranged at a 90° angle. When the handle is pressed down, the lower end of the U-shaped rod is located in the groove of the fixing block and a pulling force is applied. The four sets of snap-on quick-release locking devices are set at the four corners of the square top cover.

2. The square pressure-resistant chamber with a snap-lock device according to claim 1, characterized in that, The square pressure-resistant compartment with a snap-on quick-release locking device also includes a pull rope displacement sensor. The pull rope displacement sensor is connected to the square top cover, and the pull rope of the pull rope displacement sensor is fixed to the handle of the snap-on quick-release locking device. There are four pull rope displacement sensors, each matching one of the four snap-on quick-release locking devices.

3. The square pressure-resistant chamber with a snap-lock device according to claim 2, characterized in that, The square pressure-resistant chamber body has mounting slots on both sides.

Images