triggering safety device

Abstract

The embodiment of the present application discloses a kind of trigger safety device, comprising: the base and the shield connected, the water pressure lever is arranged in the base, the water pressure lever is limited by the inertia weight movably connected in the shield inside, the water pressure film is arranged at the top of water pressure lever, after water inlet hole is filled with water, when water pressure is enough, push water pressure film to move down, while water pressure lever also moves down.Water pressure lever is conductor, when water pressure lever is pushed to the bottom of shield, its end is contacted with binding post at the bottom of shield, and the conduction of circuit is completed.The double insurance mechanism based on inertia structure and water pressure structure realizes trigger safety function, the trigger safety of pure mechanical part is realized in the device, and the structure is simple and easy to maintain;Water pressure structure can realize trigger connection of different depths according to the performance of elastic member;Inertia structure and water pressure structure are connected in series to realize safety, and trigger can be realized according to action sequence;Double insurance can improve reliability and safety.

Description

Technical Field

[0001] This invention relates to the field of underwater safety triggering, and more particularly to a triggering safety device. Background Technology

[0002] Safety is one of the six aspects of product design, relating to the integrity of the product and the safety of personnel. Aquatic products require that the energy source remain disconnected during transportation, packaging, and storage, only being connected after deployment to ensure product safety.

[0003] Existing safety mechanisms include those that use rotor rotation triggering, which is mostly used for air-dropped products; those that use water pressure triggering, which is triggered when the product exceeds a certain water depth; those that use impeller rotation triggering, which is mostly used for underwater vehicles, and whose principle is similar to that of rotors; and those that use inertial triggering, which is based on the inertial force at the moment of impact to achieve triggering and connection.

[0004] The above methods are all single insurance release methods, which have the problem of insufficient insurance coverage. Once the insurance is released, the circuit will be directly connected, causing potential risks.

[0005] There is currently no effective solution to the problem of insufficient insurance release levels in existing technologies. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a triggering safety device that uses an inertial weight to release the primary safety of the water pressure rod, and uses the water flow to push the water pressure diaphragm to release the secondary safety of the water pressure rod. This dual safety mechanism enables the triggering safety function, thereby solving the safety issues caused by insufficient safety levels in existing technologies.

[0007] To achieve the above objectives, this invention provides a trigger safety device, comprising: a base with an opening at the top, a through cavity inside, and a through hole at the bottom; a cover plate fixed to the top opening and having multiple through water inlets; a protective cover connected to the base at the top, with a baffle extending radially from the inner sidewall, a terminal block fixed at the center of the bottom of the protective cover, and a fixing cap connected near the bottom of the sidewall; an inertial weight disposed within the inner cavity of the protective cover, the inertial weight being positioned between the baffle and the inner bottom surface of the protective cover, and capable of horizontal movement therein, with a first slot provided near the inner bottom surface of the protective cover, and one end of the inertial weight being connected to the inner sidewall of the protective cover via a first elastic element; and a water pressure rod comprising a rod body and a pressing part disposed outside the rod body, one end of the rod body passing through the cover plate, and the other end passing through the through cavity and the through hole to be engaged with the other end of the inertial weight. The rod body is a conductor and is correspondingly arranged with the terminal block. The pressing part is located in the through cavity, with an inner clamping block between the top and the bottom of the cover plate, and a second elastic element between the bottom and the inner bottom surface of the protective cover. The second elastic element is sleeved on the outside of the rod body. A locking pin is located at the bottom of the protective cover, with one end connected to the inner bottom surface of the fixing cap through a third elastic element. When the inertial weight moves radially towards the first elastic element due to inertial impact, the other end of the locking pin can pass through the bottom of the protective cover and engage with the first slot, releasing the inertial weight from limiting the water pressure rod. A water pressure diaphragm is pressed against the top of the pressing part by the inner clamping block near one end, and pressed against the inner wall of the base by an outer clamping ring near the other end. The water pressure diaphragm can move axially under water pressure to push the pressing part, and the pressing part drives the water pressure rod to move axially until it contacts the terminal block and conducts electricity.

[0008] Further optionally, the base includes a base plate portion and a main body portion extending downward from the base plate portion; the base plate portion has an opening in the middle for connecting the cover plate; the main body portion includes multiple column sections, the diameter of the multiple column sections gradually decreasing in a stepped manner from the side of the base plate portion, each column section having an internal cavity, and the internal cavities of the multiple main body sections are connected to form a through cavity.

[0009] Optionally, the main body includes three column sections; the first column section is located at the bottom of the base plate, and its bottom is connected to the top of the protective cover, with a water pressure membrane housed in its inner cavity; the second column section is located at the bottom of the first column section, and its inner wall forms a first stepped platform with the inner wall of the first column section, with the outer clamping ring pressing the water pressure membrane onto the first stepped platform, and the pressing part being axially movable within the inner cavity of the second column section; the third column section is located at the bottom of the second column section, with a through hole at the bottom, and its inner wall forms a second stepped platform with the inner wall of the second column section, the second stepped platform being used to limit the pressing part.

[0010] Further optionally, the inertial weight is provided with a mounting protrusion at one end for mounting with the hydraulic rod; the hydraulic rod is provided with a second slot at one end passing through the through hole, which is used to cooperate with the mounting protrusion to complete the limiting.

[0011] Alternatively, the protective cover is fixed to the base by screws.

[0012] Further optionally, the pressing part has a U-shaped cross-section; the rod part passes through the middle of the pressing part; one end of the second elastic member passes through the U-shaped opening of the pressing part and connects to the inner wall of the pressing part.

[0013] Alternatively, the bottom of the protective cover extends with a threaded post, the threaded post being hollow, and the locking pin being housed within the hollow cavity; the fixing cap is threadedly connected to the outer side of the threaded post.

[0014] Alternatively, the hydraulic membrane may be a rubber membrane.

[0015] Alternatively, the first elastic element, the second elastic element, and the third elastic element may all be springs.

[0016] Alternatively, the base may be provided with positioning holes.

[0017] The above technical solution has the following beneficial effects: the triggering and insurance function is realized by the dual insurance mechanism based on the inertial structure and the hydraulic structure. The device uses pure mechanical parts to realize the insurance triggering, and the structure is simple and easy to maintain; the hydraulic structure can realize triggering and connection at different depths according to the performance of the elastic element; the inertial structure and the hydraulic structure are connected in series for insurance, and triggering can be realized according to the sequence of actions; the use of dual insurance can improve reliability and safety. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a cross-sectional structural diagram of the triggering safety device provided in an embodiment of the present invention.

[0020] Reference numerals: 1-Base; 2-Guard cover; 3-Cover plate; 4-Hydraulic rod; 5-Inner clamping block; 6-Hydraulic diaphragm; 7-Outer clamping ring; 8-Second elastic element; 9-Inertial weight; 10-First elastic element; 11-Locking pin; 12-Third elastic element; 13-Fixing cap; 14-Terminal post; 15-Water inlet; 16-Fixing hole; 17-First slot Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Existing delay mechanisms have a single method for releasing the circuit breaker, resulting in insufficient safety levels. Once the circuit breaker is released, it will directly connect the circuit, which is not very safe and can easily cause potential risks.

[0023] To address the problems in the existing technology described above, embodiments of the present invention provide a triggering safety device. Figure 1 This is a cross-sectional structural diagram of the trigger safety device provided in an embodiment of the present invention, as shown below. Figure 1As shown, the device includes: a base 1 with an opening at the top, a through cavity inside, and a through hole at the bottom; a cover plate 3 fixed to the top opening, with multiple through water inlet holes 15; a protective cover 2 connected to the base 1 at the top, with baffles extending radially from the inner sidewall, a terminal block 14 fixed at the center of the bottom of the protective cover 2, and a fixing cap 13 connected near the bottom of the sidewall; and an inertial weight 9 disposed within the inner cavity of the protective cover 2. An inertial weight 9 is positioned between the baffle and the inner bottom surface of the protective cover 2, allowing it to move horizontally within it. A first slot 17 is provided on the side of the inner bottom surface of the protective cover 2. One end of the inertial weight 9 is connected to the inner wall of the protective cover 2 via a first elastic element 10. A water pressure rod 4 includes a rod body and a pressing part located on the outside of the rod body. One end of the rod body passes through the cover plate 3, and the other end passes through the through cavity and through the through hole to be engaged with the other end of the inertial weight 9. The rod body is a conductor. The pressing part is located in the through cavity, with an inner pressing block 5 between the top and the bottom of the cover plate 3, and a second elastic element 8 between the bottom and the inner bottom surface of the cover 2. The second elastic element 8 is sleeved on the outside of the rod body. A locking pin 11 is located at the bottom of the cover 2, with one end connected to the inner bottom surface of the fixing cap 13 through a third elastic element 12. When the inertial weight 9 moves radially towards the first elastic element 10 due to inertial impact, the other end of the locking pin 11 can pass through the bottom of the cover 2 and be engaged with the first slot 17 to release the inertial weight 9 from limiting the water pressure rod 4. A water pressure diaphragm 6 is pressed against the top of the pressing part by the inner pressing block 5 near one end, and pressed against the inner wall of the base 1 by the outer pressing ring near the other end. The water pressure diaphragm 6 can move axially under water pressure to push the pressing part, and the pressing part drives the water pressure rod 4 to move axially until it contacts and conducts a connection with the terminal 14.

[0024] like Figure 1 As shown, the base 1 is an irregularly shaped part with an opening at the top. A cover plate 3 is fixed at the opening, and multiple water inlet holes 15 are provided on the cover plate 3. When the entire device is submerged in water, water can flow in through the water inlet holes 15. Optionally, the cover plate 3 and the base 1 can be connected by threads or by clamping to facilitate the removal of the cover plate 3 from the base 1.

[0025] The base 1 has a through cavity, through which the water pressure rod 4 passes. One end of the water pressure rod 4 protrudes from the cover plate 3, and the other end protrudes from the bottom through hole of the base 1. Without any limit, the water pressure rod 4 can move vertically within the through cavity to a certain extent. Furthermore, the axis of the water pressure rod 4 coincides with the axis of the base 1.

[0026] The water pressure rod 4 includes a rod body and a pressing part, which can be fixedly connected or integrally formed. Specifically, the rod body is a longitudinally elongated rod-shaped component, and the pressing part is located at the upper end of the rod body, on the outside of the rod body. In the limited state, there is a certain space between the cover plate 3 and the pressing part, and the top of the cover plate cooperates with the inner clamping block 5 to fix one end (inner round end) of the water pressure membrane 6. The inner clamping block 5 is sleeved on the outside of the rod body located at the top of the pressing part, and applies pressure to the water pressure membrane 6 through the cover plate 3. A second elastic element 8 is provided between the bottom of the pressing part and the inner bottom surface of the base 1. The second elastic element 8 provides a tightening force on the pressing part when the safety is not released, so that the inner clamping block 5 and the pressing part together fix one end of the water pressure membrane 6, as a secondary safety mechanism.

[0027] The other end (outer circular end) of the hydraulic membrane 6 is pressed against the inner wall of the base 1 by an outer clamping ring. This inner wall is the top surface of the platform extending inward from the irregular base 1. Furthermore, the end of the hydraulic membrane 6 that is pressed by the inner clamping block 5 is positioned higher than the other end, allowing for downward movement.

[0028] The base 1 is also connected to a protective cover 2. The protective cover 2 is detachably connected to the base 1. After the two are fixed, the protective cover 2 encloses a part of the base 1 near the bottom into the inner cavity of the protective cover 2.

[0029] A baffle extends radially inward from one side of the inner wall of the protective cover 2. The baffle and the inner bottom surface of the protective cover 2 form a receiving groove. The inertial weight 9 is located in this receiving groove. When there is no limit, the inertial weight 9 can move freely horizontally in the receiving groove. One end of the inertial weight 9 is connected to the inner wall of the protective cover 2 through the first elastic element 10. When the safety is not released, the other end of the inertial weight 9 is locked to the side wall of the end of the water pressure rod 4 that protrudes through the through hole, serving as the first-level safety mechanism.

[0030] A terminal 14 is fixed at the bottom center of the protective cover 2. The terminal 14 is coaxial with the water pressure rod 4. The water pressure rod 4 is a conductor, or the rod body is a conductor. When all levels of safety are released, one end of the water pressure rod contacts the terminal 14 to complete the conduction.

[0031] At the bottom of the protective cover 2, near the side wall where the baffle is set, a fixing cap 13 is fixed. One end of the locking pin 11 is connected to the inner bottom surface of the fixing cap 13 through the third elastic element 12. When the safety is not released, the other end of the fixing cap 13 is pressed by the inertial weight 9, and its top surface is flush with the inner bottom surface of the protective cover 2 at that position. When the limit is released, the inertial weight 9 moves to the left. When the first slot 17 at its bottom moves to the position of the locking pin 11, the locking pin 11 moves and is inserted into the first slot 17 under the action of the third elastic element 12, thus completing the limit of the inertial weight 9. At this time, the limit of the inertial weight 9 on the water pressure rod 4 has also been released.

[0032] exist Figure 1With all insurance mechanisms disengaged, the entire device is submerged in water. Upon entry, the inertial weight 9 moves to the left due to the inertial impact, releasing the downward movement limit of the water pressure rod 4. Simultaneously, the locking pin 11 moves into the first slot 17 under the action of the third elastic element 12, locking the inertial weight 9. After the device is submerged to a certain depth, the water pressure diaphragm 6 moves downward under the action of water pressure, causing the water pressure rod 4 to move downward as well, until the water pressure rod 4 contacts and conducts electricity with the terminal 14, completing the connection of the energy section.

[0033] As an optional implementation, the base 1 includes a base plate portion and a main body portion extending downward from the base plate portion; the base plate portion has an opening in the middle for connecting the cover plate 3; the main body portion includes multiple column sections, the diameter of which decreases stepwise from the side of the base plate portion, and each column section has an internal cavity, and the internal cavities of the multiple main body sections are connected to form a through cavity.

[0034] like Figure 1 As shown, the base 1 includes a base plate portion and a main body portion extending downward in a stepped manner from the base plate portion. The base plate portion has an opening in the middle for mounting the cover plate 3. The main body portion is composed of multiple column sections, the diameter of which decreases stepwise from top to bottom, and the internal cavities of the multiple column sections are connected to form a through cavity.

[0035] Furthermore, the substrate and the main body can be integrally formed or they can be fixedly connected separately.

[0036] As an optional implementation, the main body includes three column sections; the first column section is located at the bottom of the base plate and is connected to the top of the cover 2, and its inner cavity accommodates the water pressure membrane 6; the second column section is located at the bottom of the first column section, and its inner wall forms a first stepped platform with the inner wall of the first column section, and the outer clamping ring presses the water pressure membrane 6 onto the first stepped platform, and the pressing part can move axially in the inner cavity of the second column section; the third column section is located at the bottom of the second column section, and a through hole is opened at the bottom, and its inner wall forms a second stepped platform with the inner wall of the second column section, and the second stepped platform is used to limit the pressing part.

[0037] In this embodiment, a three-section column is designed. The first section is the column closest to the base plate, and its top is connected to the bottom of the base plate. The inner cavity houses the inner clamping block 5, the outer clamping block, and the hydraulic membrane 6. When the safety is not released, the pressing part is located in the inner cavity of the first section.

[0038] The second column is located between the first and third columns, forming a first stepped platform with the inner wall of the first column. The outer clamping ring presses the water pressure diaphragm 6 firmly onto the first stepped platform. With the safety engaged, the other part of the pressing part is located in the inner cavity of the second column, the diameter of which is slightly larger than the diameter of the pressing part.

[0039] The third column and the inner wall of the second column form a second stepped platform. When the bottom of the pressing part is limited by the second stepped platform, the contact area between the water pressure rod 4 and the terminal block 14 is sufficient to reduce the pressure of the water pressure rod 4 on the terminal block 14.

[0040] Furthermore, the three-section column can be molded as a single piece or connected separately.

[0041] As an optional implementation, the inertial weight 9 is provided with a mounting protrusion at one end for mounting with the hydraulic rod 4; the hydraulic rod 4 is provided with a second slot at one end passing through the through hole, which is used to cooperate with the mounting protrusion to complete the limiting.

[0042] The right end face of the inertial weight 9 is provided with a mounting protrusion, and the side of the column through which the water pressure column passes is provided with a corresponding second slot. When the safety is not released, the mounting protrusion is horizontally inserted into the second slot to complete the limiting of the mounting column.

[0043] As an optional implementation, the cover 2 is fixed to the base 1 by screws.

[0044] To facilitate the replacement and installation of internal components, in this embodiment, the protective cover 2 and the base 1 are detachably connected by screws.

[0045] Furthermore, a sealing gasket can be installed at the connection between the protective cover 2 and the base 1 to improve the sealing performance.

[0046] As an optional implementation, the pressing part has a U-shaped cross-section; the rod part passes through the middle of the pressing part; one end of the second elastic member 8 passes through the U-shaped opening of the pressing part and connects to the inner wall of the pressing part.

[0047] like Figure 1 As shown, the cross-section of the pressing part is an inverted U-shape, the rod part passes vertically through the middle of the U-shape, one end of the second elastic member 8 is inserted into the interior of the U-shaped pressing part and connected to its top inner wall, and the other end is connected to the inner bottom surface of the base 1.

[0048] As an optional implementation, the bottom of the cover 2 extends with a threaded post, the threaded post is hollow, and the hollow inner cavity accommodates a locking pin 11; a fixing cap 13 is threadedly connected to the outside of the threaded post.

[0049] The bottom of the cover 2 has a threaded post extending vertically outward. The threaded post is hollow, and the hollow cavity is used to accommodate the locking pin 11. The threaded post is connected to a fixing cap 13 by threads on the outside. The fixing cap 13 facilitates the installation and replacement of the locking pin 11.

[0050] As an optional implementation, the hydraulic membrane 6 is a rubber membrane.

[0051] The water pressure membrane 6 is a rubber membrane. The rubber membrane can withstand large water pressure without being damaged, and its flexibility allows it to move downwards when encountering water pressure.

[0052] As an optional implementation, the first elastic element 10, the second elastic element 8, and the third elastic element 12 are all springs.

[0053] In this embodiment, the first elastic element 10, the second elastic element 8, and the third elastic element 12 are all springs. Springs with different performance can be replaced under different depth triggering requirements.

[0054] As an optional implementation, the base 1 has positioning holes.

[0055] The base 1 has at least one positioning hole for connecting to the mounting components of the underwater vehicle.

[0056] The above technical solution has the following beneficial effects: This embodiment realizes the triggering and insurance function based on the dual insurance mechanism of inertial structure and hydraulic structure. The device uses pure mechanical parts to realize insurance triggering, and the structure is simple and easy to maintain; the hydraulic structure can realize triggering and connection at different depths according to the performance of elastic parts; the inertial structure and hydraulic structure are connected in series for insurance, and can realize triggering according to the sequence of actions; the use of dual insurance can improve reliability and safety.

[0057] The above-described specific embodiments of the invention further illustrate the purpose, technical solution, and beneficial effects of the invention. It should be understood that the above content is only for specific embodiments of the invention and is not intended to limit the scope of protection of the invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A trigger safety device, characterized in that, include: The base has an opening at the top, a through cavity inside, and a through hole at the bottom; A cover plate, which is fixed to the top opening and has multiple through water inlet holes; The protective cover has its top connected to the base, a baffle extending radially from its inner sidewall, a terminal block fixed at the bottom center of the protective cover, and a fixing cap connected near the bottom of the sidewall. An inertial weight is provided in the inner cavity of the protective cover. The inertial weight is located between the baffle and the inner bottom surface of the protective cover and can move horizontally therein. A first slot is provided on the side near the inner bottom surface of the protective cover. One end of the inertial weight is connected to the inner side wall of the protective cover through a first elastic element. A water pressure rod, comprising a rod body and a pressing part disposed on the outside of the rod body, one end of the rod body passing through the cover plate, and the other end passing through the through cavity and the through hole to be fastened to the other end of the inertial weight; the rod body is a conductor and is disposed corresponding to the terminal block; the pressing part is located in the through cavity, and an inner clamping block is disposed between the top and the bottom of the cover plate, and a second elastic element is disposed between the bottom and the inner bottom surface of the protective cover, the second elastic element being sleeved on the outside of the rod body; A locking pin is provided at the bottom of the protective cover. One end of the locking pin is connected to the inner bottom surface of the fixing cap through a third elastic element. When the inertial weight moves radially toward the first elastic element due to inertial impact, the other end of the locking pin can pass through the bottom of the protective cover and be engaged with the first slot to release the limitation of the inertial weight on the water pressure rod. A water pressure diaphragm is pressed against the top of the pressing part by an inner clamping block near one end, and pressed against the inner wall of the base by an outer clamping ring near the other end. The water pressure diaphragm can move axially under water pressure to push the pressing part, and the pressing part drives the water pressure rod to move axially until it contacts the terminal block and conducts electricity.

2. The trigger safety device according to claim 1, characterized in that: The base includes a base plate portion and a main body portion extending downward from the base plate portion; The base plate has an opening in the middle for connecting the cover plate; The main body includes multiple column sections, the diameter of which decreases stepwise from the base plate side. Each column section has an internal cavity, and the internal cavities of the multiple main body sections are connected to form a through cavity.

3. The trigger safety device according to claim 2, characterized in that: The main body comprises three column sections; The first column is located at the bottom of the base plate, and its bottom is connected to the top of the protective cover. Its inner cavity contains a water pressure membrane. The second column is located at the bottom of the first column, and its inner wall forms a first stepped platform with the inner wall of the first column. The outer pressing ring presses the water pressure membrane onto the first stepped platform, and the pressing part can move axially in the inner cavity of the second column. The third column is located at the bottom of the second column, and a through hole is provided at the bottom. The inner wall of the third column and the inner wall of the second column form a second stepped platform, which is used to limit the pressing part.

4. The trigger safety device according to claim 1, characterized in that: The inertial weight is used to clamp the hydraulic rod, and one end of the weight has a clamping protrusion. The water pressure rod has a second slot at one end that passes through the through hole, which is used to cooperate with the mounting protrusion to complete the limiting.

5. The triggering safety device according to claim 1, characterized in that: The protective cover is fixed to the base with screws.

6. The trigger safety device according to claim 1, characterized in that: The cross-section of the pressing part is U-shaped; The rod portion passes through the middle of the pressing portion; One end of the second elastic element passes through the U-shaped opening of the pressing part and connects to the inner wall of the pressing part.

7. The trigger safety device according to claim 1, characterized in that: The bottom of the protective cover extends with a threaded post, which is hollow and has a locking pin housed in its hollow inner cavity. The threaded post is threaded with the fixing cap on its outer side.

8. The trigger safety device according to claim 1, characterized in that: The hydraulic membrane is a rubber membrane.

9. The triggering safety device according to claim 1, characterized in that: The first elastic element, the second elastic element, and the third elastic element are all springs.

10. The trigger safety device according to claim 1, characterized in that: The base has positioning holes.

Images