Pressure-bearing triggering mechanism

Abstract

The utility model discloses a pressure-bearing triggering mechanism which comprises a balance cavity and a triggering assembly which are of a hollow sealing structure, and the balance cavity is provided with a pressure balance hole penetrating through the inside and the outside. The touch assembly comprises a touch rod with one end extending into the balance cavity, the touch rod is in clearance fit with the side wall of the balance cavity, the other end of the touch rod is located outside the balance cavity, a linkage structure corresponding to the end of the touch rod is arranged in the balance cavity, and a transmission piece connected with the linkage structure is arranged outside the balance cavity. In the initial state, when the feeler lever is stressed to slide into the balance cavity, the transmission part can be driven to rotate through the linkage structure. By the adoption of the scheme, the springback type triggering structure can fully eliminate the influence of water pressure or air pressure in the environment, linear motion is converted into rotary motion, the springback type triggering structure is suitable for the environment with pressure, the reliability and safety of a device can be improved when the springback type triggering structure is applied to a fixing device, the overall structure is compact, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of pressure space operation tools, specifically to a pressure-bearing triggering mechanism. Background Technology

[0002] With the rapid development of underwater target technology and other engineering technologies, for example, ships and vessels inevitably encounter accidents such as collisions and grounding during navigation, leading to cracks and breaches. Commonly used leak-sealing plates, pads, bags, and umbrellas are used for quick leak sealing. The efficiency and speed of securing these materials directly affects their anti-sinking performance, and underwater exposure operations are becoming increasingly common. For instance, some existing underwater connection and fixing tools, such as the patent with patent number "CN117628991A" entitled "An Underwater Target Processing Device for Nail Connection," primarily use gunpowder to launch nails. The applicant found in their research that most similar structures currently suffer from poor reliability and safety. After the tool enters the water, it is easily affected by water pressure, leading to failure to launch or delayed launch, thus delaying the project or causing safety accidents. Utility Model Content

[0003] In view of this, the present invention provides a pressure-bearing triggering mechanism, which aims to solve the problem that target processing and fixing tools in underwater or other positive and negative pressure environments are easily affected by water pressure.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A pressure-bearing triggering mechanism, the key feature of which is: a balance chamber with a hollow sealed structure and a triggering component, wherein the balance chamber has a pressure balance hole that extends through the inside and outside;

[0006] The triggering component includes a trigger rod with one end extending into the balance cavity, the trigger rod being in clearance fit with the side wall of the balance cavity, and the other end located outside the balance cavity. The balance cavity has a linkage structure corresponding to the end of the trigger rod, and the outside of the balance cavity has a transmission component connected to the linkage structure.

[0007] In the initial state, when the contact rod is subjected to force and slides into the balance cavity, it can drive the transmission component to rotate through the linkage structure.

[0008] Using the above solution, the mechanism is encapsulated in the corresponding device during use, while the outer end of the contact rod is exposed to the outside. After entering the water, the water enters the balance chamber through the pressure balance hole, so that the two ends can maintain a basic pressure balance and will not be affected by water pressure. When triggering is required, the contact rod is impacted and moves inward. This can drive the transmission component to move synchronously through the linkage structure, and at the same time transmit the action to the component to be triggered. This mechanism effectively avoids the situation where the exposed contact rod is affected by water pressure.

[0009] Preferably, a stop plate is fixed to the outside of the balance chamber, and the stop plate is located on the rotational stroke of the transmission component. This design better limits the movement of the component to be triggered, improving triggering reliability.

[0010] Preferably, the balancing chamber has a chamber cover that is removably sealed, and the pressure balancing hole is located on the chamber cover. This design facilitates the assembly and disassembly of the internal linkage structure, improving ease of assembly and disassembly.

[0011] Preferably, the linkage structure includes a connecting rod, a rotating shaft, and a tension spring. The rotating shaft passes through the side wall of the balance chamber, and its two ends are fixedly connected to the connecting rod and the transmission component, respectively. One end of the tension spring is hooked onto the chamber cover, and the other end is hooked onto the connecting rod. Using this scheme, the tension spring maintains the initial position of the connecting rod, which helps to further reduce environmental interference and the influence of the contact rod's own weight, thus improving reliability.

[0012] Preferably, in the initial state, the connecting rod is inclined, with a bearing at the end furthest from the pivot, and the inner end of the contact rod having an abutment portion corresponding to the bearing. Using this design, the bearing reduces the friction between the contact rod abutment portion and the connecting rod, ensuring the connecting rod's rotational flexibility.

[0013] Preferably, the contact portion is perpendicular to the sliding direction of the contact rod. This design ensures smooth sliding.

[0014] To facilitate installation and improve the overall compactness, the chamber cover and the stop plate are located at opposite ends of the balance chamber.

[0015] Preferably, the width of the balancing cavity is adapted to the width of the connecting rod. By adopting the above scheme, the width of the connecting rod can be limited, ensuring its rotational stability and preventing swaying.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The pressure-bearing triggering mechanism and spring-loaded triggering structure provided by this utility model can effectively eliminate the influence of water pressure or air pressure in the environment, convert linear motion into rotational motion, and is suitable for pressurized environments. The overall structure is compact and easy to operate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the balancing cavity;

[0020] Figure 3 This is a schematic diagram of the underwater fixed device structure;

[0021] Figure 4 for Figure 3 Axonometric drawing;

[0022] Figure 5 for Figure 3 Internal structure diagram;

[0023] Figure 6 A schematic diagram showing the installation of a pressure-bearing triggering mechanism in an underwater fixed device;

[0024] Figure 7 This is a schematic diagram of the inner structure of the front cover;

[0025] Figure 8 This is a schematic diagram of the outer structure of the front cover;

[0026] Figure 9 This is a schematic diagram of the structure of the trigger-type nail gun assembly;

[0027] Figure 10 This is a schematic diagram of another structure for a buffer block;

[0028] Figure 11 This is a logic block diagram illustrating the working principle of this underwater fixed device;

[0029] Figure 12 This is a schematic diagram of the power supply circuit for this underwater fixed device;

[0030] Figure 13 This is a schematic diagram of the main control circuit of this underwater fixed device;

[0031] Figure 14 Schematic diagram of water environment excitation switch;

[0032] Figure 15 This is a schematic diagram of the nail-triggered door circuit.

[0033] Figure 16 This is a schematic diagram of the nail gun drive control circuit. Detailed Implementation

[0034] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0035] refer to Figures 1 to 8The pressure-bearing triggering mechanism shown mainly includes a hollow, sealed balance chamber 110 and an actuating component 600. The balance chamber 110 has a pressure balance hole 111 that extends through the inside and outside, ensuring that the internal and external environmental pressures remain essentially consistent. The actuating component 600 includes a contact rod 610 with one end extending into the balance chamber 110 and clearance-fitting the side wall of the balance chamber 110, and the other end located outside the balance chamber 110. The balance chamber 110 has a linkage structure 620 corresponding to the end of the contact rod 610. The outside of the balance chamber 110 has a transmission component 630 connected to the linkage structure 620. In the initial state, when the contact rod 610 is subjected to force and slides into the balance chamber 110, it can drive the transmission component 630 to rotate through the linkage structure 620. However, during actual installation and use, the environment of the transmission component 630 is relatively isolated from the internal space of the balance chamber 110 to avoid being affected by environmental pressure or flow field.

[0036] A stop plate 640 is fixedly provided on the outside of the balance chamber 110, and the stop plate 640 is located on the rotation stroke of the transmission member 630. In this embodiment, the balance chamber 110 has a chamber cover 121 that is detachably sealed, a pressure balance hole 111 is located on the chamber cover 121, and the contact rod 610 is clearance-fitted with the chamber cover 121 and can slide relative to it.

[0037] As shown in the figure, the chamber cover 121 and the stop plate 640 are located at opposite ends of the balance chamber 110. The stop plate 640 is fixed to the bottom of the balance chamber 110 by screws, while the chamber cover 121 is located at the top of the balance chamber 110. Relatively speaking, the whole structure is more compact and easier to assemble in a modular manner.

[0038] In practical implementation, the linkage structure 620 mainly includes a connecting rod 621, a rotating shaft 622, and a tension spring 623. The rotating shaft 622 passes through the side wall of the balance chamber 110, and its two ends are fixedly connected to the connecting rod 621 and the transmission component 630, respectively. One end of the tension spring 623 is hooked onto the chamber cover 121, and the other end is hooked onto the connecting rod 621. In the initial state, the connecting rod 621 is tilted and held in position by the tension spring 623.

[0039] The end of the connecting rod 621 away from the rotating shaft 622 has a bearing 624. The inner end of the contact rod 610 has an abutment part 611 corresponding to the bearing 624, as shown in the figure. The abutment part 611 is perpendicular to the sliding direction of the contact rod 610. The abutment part 611 is generally plate-shaped, and its end is in contact with the inner wall of the balance cavity 110. In this way, when the contact rod 610 slides, the abutment part 611 can play a certain stabilizing role.

[0040] In addition, the inner width of the balance cavity 110 in this application is adapted to the width of the connecting rod 621. The width of the balance cavity 110 is used to limit the connecting rod 621 on both sides, reducing swaying and thus ensuring the smoothness and reliability of the rotation.

[0041] Based on the aforementioned pressure-bearing triggering mechanism, this application also provides an application of the pressure-bearing triggering mechanism for use in underwater fixing devices, as detailed in the references. Figures 1 to 16 As shown, the underwater fixing device mainly includes a hollow housing 100 and a nail triggering gate circuit 700. The nail triggering gate circuit 700 includes a contact switch 710. The pressure-bearing triggering mechanism is installed inside the housing 100. The outer end of the contact rod 610 is outside the housing 100, while the transmission member 630 is located inside the housing 100. When the transmission member 630 rotates, it can close the switch plate of the contact switch 710.

[0042] As shown in the figure, the housing 100 includes a front cover 120 and a rear cover 130 that are detachably and sealed. In practice, to further improve the overall compactness and ease of installation, the balance chamber 110 in the pressure-bearing triggering mechanism is integrally formed with the front cover 120. The opening of the balance chamber 110 is directly opened on the front cover 120, while the chamber cover 121 is directly fixed on the front cover 120. The contact switch 710 is directly fixedly installed on the transmission component 630. Thus, when the transmission component 630 rotates, it drives the contact switch 710 to rotate until its switch plate abuts against the stop plate 640, which closes the contact switch 710 and causes the nail triggering gate circuit 700 to work.

[0043] The underwater fixing device of this embodiment also includes an excitation-type nailing assembly 200 and a power supply 300 disposed within the housing 100, as well as a main control circuit 400, a nailing drive control circuit 500 and a power supply circuit 900 electrically connected to the power supply 300. The power supply 300 supplies power to the main control circuit 400 and the nailing drive control circuit 500 through the power supply circuit 900. At the same time, a power-on switch 310 is provided between the power supply 300 and the power supply circuit 900. The power-on switch 310 is disposed on the housing 100 and can be operated from outside the housing 100. When the power-on switch 310 is closed, power can be supplied to the main control circuit 400 and the nailing drive control circuit 500 through the power supply circuit 900.

[0044] The excitation-type nail assembly 200 includes a nail 210 and an electrode plug 220. The nail trigger gate circuit 700 is used to send an excitation signal to the main control circuit 400, and the nail drive control circuit 500 is used to output current to the electrode plug 220 to excite the nail 210 to be fired, thereby achieving the anchor fixation effect.

[0045] In this embodiment, the trigger-type nail assembly 200 further includes a tube 230, which has a firing cavity 231 adapted to the nail 210. The front end of the tube 230 has a cap 240, as shown in the figure. The cap 240 is threadedly connected to the tube 230, and both the inner side of the cap 240 and the tail end of the tube 230 have connecting screw holes 250. The front end cap 120 has mounting holes 122 adapted to the cap 240.

[0046] In specific implementation, the nail 210 mainly includes an integrally formed tail section 211 and a nail insertion section 212, wherein the diameter of the tail section 211 is larger than that of the nail insertion section 212, the end of the nail insertion section 212 is pointed, the inner side of the cover 240 has a thinning groove 241 facing the firing cavity 231, and a buffer block 260 is provided at the corresponding position. This embodiment shows two structures of the buffer block 260, the first being as follows: Figure 9 As shown, it has a ring-shaped structure, the inner diameter of which is adapted to the diameter of the nailing section 212, and is fixed inside the firing cavity 231, abutting against the cover 240. The second structure is as follows... Figure 10 As shown, its cross-section is roughly "eight" shaped, and it is a rotating structure that can be directly fixed to the cover 240 by screws. Its minimum inner diameter is adapted to the diameter of the nailing section 212. In both embodiments, the material of the buffer block 260 is a material with good toughness, such as aluminum or copper.

[0047] In addition, in this embodiment, the tail end of the nail 210 is provided with a liner ring 270, as shown in the figure. The tail section 211 has an annular groove 213 and an annular extension 214. The liner ring 270 is embedded in the annular groove 213. The outer side of the liner ring 270 is in close contact with the inner wall of the annular extension 214. The activator 280 is filled in the liner ring 270. The liner ring 270 is generally made of a low-density and lightweight material to fix the activator 280 and ensure that the activator 280 will not be damaged or have safety issues due to vibration in the device. The electrode plug 220 abuts against the end face of the tail end of the liner ring 270 to form a blockage and contacts the activator 280. In this way, when the electrode plug 220 has a circuit working current input, the activator 280 can be ignited by a spark, thereby firing the nail 210.

[0048] Key reference Figures 3 to 5 The housing 100 has parallel circuit boards A150 and B160 inside. The nail drive control circuit 500 is arranged on the circuit board A150, and the main control circuit 400, power supply circuit 900, and water environment excitation switch 800 are all arranged on the circuit board B160. In addition, the housing 100 has a rear end cover 130. The rear end cover 130 and the front end cover 120 are all sealed to the housing 100. The power switch 310 is arranged on the rear end cover 130 and usually adopts a rotary press-type structure.

[0049] In addition, in this embodiment, the nail drive control circuit 500 is connected to a water environment excitation switch 800, and a water environment detection module 140 is provided on the rear cover 130. The water environment detection module 140 mainly utilizes the conductivity of water and is controlled by a threshold comparison circuit. Figure 14 The opening and closing of the first switch V1 is conducted underwater and disconnected when out of water (this is a mature technology and will not be described in detail here).

[0050] Specifically, Figure 12 BAT-TO-NSG and Figure 14 The BAT-TO-NSG interface is connected, and the feedback signal of the water environment detection module 140 is connected to it. Figure 14 HS interface connection, Figure 12 MVCC and Figure 13 MVCC (MCU pin 24) connection, Figure 15 SW-IN1 and SW-IN1 are two signals of the contact switch 710, respectively. Figure 15 SW and Figure 12 The SW (MCU pin 20) is connected. In this embodiment, to improve reliability, the contact switch 710 adopts a dual-signal output structure, with two sets of output signals. After triggering, either signal sent to the gate circuit can transmit an excitation signal to the MCU. Figure 16 NSG-POWER and Figure 14 NSG-POWER connection, NSG-CTRL and Figure 13 Connect the NSG-CTRL (MCU pin 26) in the middle. Figure 16 NSG is the input line of the electrode plug.

[0051] use Figures 1 to 16 The pressure-bearing triggering mechanism shown works as follows: Before use, the power switch 310 is turned on, and the power supply circuit 900 supplies power to the main control circuit 400. When the device enters the water, the water environment excitation switch is turned on, and the nail drive control circuit 500 is energized. When the device approaches the target or the object to be fixed, the contact rod 610 collides with the corresponding target or object and is pressed. The contact rod 610 slides into the balance cavity 110, and the transmission component 630 is rotated through the linkage structure 620, which in turn causes the contact switch 710 to close. The set trigger gate circuit feeds back a signal to the MCU, and the MCU then sends an excitation signal to the set drive control circuit. The second switch V2 in the circuit is turned on, and the current enters the electrode plug 220, igniting the ignition charge 280, which in turn shoots out the nail 210, achieving the purpose of anchoring the target object to another object or destroying the target object.

[0052] Of course, the pressure-bearing triggering mechanism of this application can be used not only in the above-mentioned underwater fixing device, but also in other related devices with positive or negative pressure environments, as long as the contact rod 610, which is the object of force application, and the transmission component 630 are in two relatively independent pressure environments.

[0053] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A pressure-bearing triggering mechanism, characterized in that, It includes a hollow, sealed balance chamber (110) and an actuation assembly (600), wherein the balance chamber (110) has a pressure balance hole (111) that extends through the inside and outside. The actuation assembly (600) includes a touch rod (610) with one end extending into the balance cavity (110), the touch rod (610) being in clearance fit with the side wall of the balance cavity (110), and the other end being located outside the balance cavity (110). The balance cavity (110) has a linkage structure (620) corresponding to the end of the touch rod (610), and the outside of the balance cavity (110) has a transmission member (630) connected to the linkage structure (620). In the initial state, when the contact rod (610) is slid into the balance cavity (110) under force, it can drive the transmission component (630) to rotate through the linkage structure (620).

2. The pressure-bearing triggering mechanism according to claim 1, characterized in that: A stop plate (640) is fixed on the outside of the balance chamber (110), and the stop plate (640) is located on the rotational stroke of the transmission component (630).

3. The pressure-bearing triggering mechanism according to claim 1 or 2, characterized in that: The balancing chamber (110) has a chamber cover (121) that is detachably sealed, and the pressure balancing hole (111) is located on the chamber cover (121).

4. The pressure-bearing triggering mechanism according to claim 3, characterized in that: The linkage structure (620) includes a connecting rod (621), a rotating shaft (622), and a tension spring (623). The rotating shaft (622) passes through the side wall of the balance chamber (110) and is fixedly connected at both ends to the connecting rod (621) and the transmission component (630), respectively. One end of the tension spring (623) is hooked on the chamber cover (121), and the other end is hooked on the connecting rod (621).

5. The pressure-bearing triggering mechanism according to claim 4, characterized in that: In the initial state, the connecting rod (621) is inclined, and the end away from the rotating shaft (622) has a bearing (624), and the inner end of the contact rod (610) has an abutment part (611) corresponding to the bearing (624).

6. The pressure-bearing triggering mechanism according to claim 5, characterized in that: The sliding direction of the contact part (611) and the contact rod (610) are perpendicular to each other.

7. The pressure-bearing triggering mechanism according to claim 3, characterized in that: The chamber cover (121) and the stop plate (640) are located at opposite ends of the balance chamber (110).

8. The pressure-bearing triggering mechanism according to claim 4, characterized in that: The width of the balance cavity (110) is adapted to the width of the connecting rod (621).

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