Underwater acceleration safety device

Abstract

An underwater acceleration safety device is used to trigger a safety in response to a change in acceleration in a single direction, wherein the single direction is the trigger direction. Specifically, the underwater acceleration safety device includes a weight block that can reciprocate in a straight line parallel to the trigger direction and a damping component that can provide a damping effect in the straight line direction, wherein the damping component is connected to the weight block and is used to provide a damping force to the weight block that is opposite to the single direction; a trigger device is provided in front of the weight block along the single direction; when the acceleration changes along the single direction, the weight block can overcome the damping force and move forward and can contact the trigger device to trigger the safety. The present invention provides an acceleration change trigger safety device in the form of a mechanical structure, which is applied to underwater working equipment and can trigger the start of the safety when a collision occurs in the underwater working equipment. The present invention is a safety mechanism for mechanical equipment with high reliability.

Description

Technical Field

[0001] The present invention belongs to the technical field of safety equipment, and more specifically, particularly relates to an underwater acceleration safety device. Background Art

[0002] The safety mechanism of a mechanical device is a protective mechanism that is used to effectively prevent the device from being triggered incorrectly and is widely used in mechanical design.

[0003] For example, a certain type of underwater operating mechanism requires the addition of a safety device at the beginning of its design to ensure the stable and safe operation of the mechanism. The safety device plays a role of insurance in mechatronic equipment. The delayed action of the equipment or the action that requires specific instructions to trigger can be connected in series with the safety device, thereby effectively preventing the equipment from erroneous action. However, the existing safety devices all detect the operating status of the action trigger device. If the operating status of the action trigger device itself is wrong, it will directly cause the safety device to erroneously act, causing the safety device to fail. Summary of the invention

[0004] 1. Technical issues

[0005] In summary, how to provide a safety mechanism for mechanical equipment with high reliability has become an urgent problem to be solved by those skilled in the art.

[0006] (II) Technical solution

[0007] The invention provides a multi-purpose parts processing and fixing tool, which is used for realizing the processing and fixing of a plurality of fin-attached mounting plates.

[0008] In the present invention, the multi-purpose parts processing fixture comprises:

[0009] A tooling body, the upper side of which is a processing table, on which at least two independently arranged card slots are arranged, and the card slots are used for carding and fixing the fin mounting plate;

[0010] A clamping plate is arranged on the processing table in an adjustable position, and at least two of the clamping plates are arranged. Each of the clamping slots should be provided with one clamping plate, and the clamping plate can move toward the direction of the corresponding clamping slot and can be resisted by the fin-attached mounting plate in the clamping slot to achieve the clamping of the fin-attached mounting plate.

[0011] Preferably, in the multi-purpose parts processing and fixing tool provided by the present invention, the processing table surface is a regular polygonal structure, and a slide with a planar structure is arranged on the processing table surface corresponding to each edge of the processing table surface. The clamping plate can be slidably arranged on the slide, and an adjustment hole is arranged on the slide. There are multiple adjustment holes, and the adjustment holes are arranged in sequence along the sliding direction of the clamping plate on the slide. The adjustment holes are matched with adjustment bolts to realize the position fixation of the clamping plate; the clamping groove is arranged below the inner side edge of the slide.

[0012] Preferably, in the multi-purpose parts processing and fixing tooling provided by the present invention, the card plate includes a card plate body, the card plate body is slidably matched with the slide, the side of the card plate body facing the card slot is a card surface, the card surface is a plane, and the card surface is perpendicular to the bottom surface of the card slot.

[0013] Preferably, in the multi-purpose parts processing and fixing tool provided by the present invention, the side surface of the clamping plate body facing away from the clamping slot is a mounting surface, a fixing piece is arranged on the mounting surface, and a fixing piece through hole for the adjusting bolt to pass through is arranged on the fixing piece.

[0014] Preferably, in the multi-purpose parts processing and fixing tool provided by the present invention, one side of the fixing piece is fixedly connected to the mounting surface, and the other side of the fixing piece is provided with a clamping opening structure, and the fixing piece through hole passes through the clamping opening structure.

[0015] Preferably, in the multi-purpose parts processing and fixing tool provided by the present invention, four said card slots are provided, and the four said card slots are arranged on the said processing table in a square layout, and the said card slots penetrate the said processing table in the extension direction thereof.

[0016] Preferably, in the multi-purpose parts processing and fixing tool provided by the present invention, two adjacent slots intersect and form an intersection, and a stabilizing block capable of abutting against a fin mounting plate is provided on the processing table and outside the intersection.

[0017] Preferably, in the multi-purpose parts processing and fixing tool provided by the present invention, the slot is an inverted T-slot.

[0018] Preferably, in the multi-purpose parts processing and fixing tooling provided by the present invention, the card slot includes a card slot main slot arranged perpendicular to the processing table surface, the bottom of the card slot main slot is a planar structure, and a card slot auxiliary slot is arranged at the bottom of the card slot main body extending outward in a direction parallel to the processing table surface, the bottom of the card slot auxiliary slot is a planar structure and is located in the same plane as the bottom of the card slot main slot; the card slot main slot and the card slot auxiliary slot form an inverted T-shaped structure.

[0019] Preferably, the multi-purpose parts processing fixing tool provided by the present invention further includes a driving device for driving the tool body to rotate and a control device connected to the driving device for controlling the operation of the driving device.

[0020] (III) Beneficial effects

[0021] The present invention provides an underwater acceleration safety device for realizing acceleration safety triggering of underwater working equipment. In the present invention, the underwater acceleration safety device is used to realize safety triggering for acceleration changes in a single direction, and the single direction is the triggering direction. Specifically, the underwater acceleration safety device includes a weight block that can reciprocate on a straight line parallel to the triggering direction and a damping component that can provide damping in the straight line direction, the damping component is connected to the weight block and is used to provide a damping force to the weight block that is opposite to the single direction; along the single direction, a trigger device is arranged in front of the weight block; along the single direction, when the acceleration changes, the weight block can overcome the damping force and move forward and can contact the trigger device for safety triggering.

[0022] Through the above structural design, the present invention provides an acceleration change triggering safety device in the form of a mechanical structure, which is applied to underwater working equipment and can trigger the start of the safety when the underwater working equipment collides. The present invention is a safety mechanism for mechanical equipment with high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of an underwater acceleration insurance device in an embodiment of the present invention;

[0024] Figure 2 It is a diagram showing the relative relationship between the first limit block, the weight block and the second limit block of the underwater acceleration safety device in the initial state in an embodiment of the present invention;

[0025] Figure 3 It is a diagram showing the relative relationship between the first limit block, the weight block and the second limit block of the underwater acceleration safety device in the embodiment of the present invention when the water pressure safety is released;

[0026] Figure 4 The figure is a diagram of the relative relationship between the first limit block, the weight block and the second limit block of the underwater acceleration safety device in the acceleration safety released state in the embodiment of the present invention.

[0027] exist Figures 1 to 4 In the figure, the corresponding relationship between the component names and the reference numerals is as follows:

[0028] Hydraulic membrane 1, pressure ring 2, hydraulic rod 3, support column 4, pressure regulating spring 5, first torsion spring 6, first limit block 7, base 8, micro switch 9, first mounting rod 10, weight mounting rod 11, damping component 12, second mounting rod 13, weight 14, second limit block 15, second torsion spring 16, holder 17, hydraulic membrane seat 18. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] In addition, in the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] Please refer to Figures 1 to 4 ,in, Figure 1 It is a structural schematic diagram of an underwater acceleration insurance device in an embodiment of the present invention; Figure 2 It is a diagram showing the relative relationship between the first limit block, the weight block and the second limit block of the underwater acceleration safety device in the initial state in an embodiment of the present invention; Figure 3 It is a diagram showing the relative relationship between the first limit block, the weight block and the second limit block of the underwater acceleration safety device in the embodiment of the present invention when the water pressure safety is released; Figure 4 The figure is a diagram of the relative relationship between the first limit block, the weight block and the second limit block of the underwater acceleration safety device in the acceleration safety released state in the embodiment of the present invention.

[0032] The present invention provides an underwater acceleration safety device for realizing acceleration safety triggering of underwater working equipment. The underwater acceleration safety device provided by the present invention has two triggering conditions: 1. The underwater working mechanism must be underwater; 2. When a situation similar to a collision occurs, the acceleration suddenly changes greatly.

[0033] In the present invention, the underwater acceleration safety device is used to trigger the insurance for the acceleration change in a single direction, and the single direction is the trigger direction. The single direction (i.e., the trigger direction) mentioned in the present invention is mainly the forward direction. For the underwater acceleration safety device alone (not installed on the underwater working equipment), it refers to a certain direction. When the present invention is installed on the underwater working equipment, it is necessary to install the present invention according to the specific actual situation and in combination with the determined direction.

[0034] Specifically, regarding the acceleration mutation trigger mechanism, the underwater acceleration insurance device provided by the present invention adopts the following structural design: the underwater acceleration insurance device includes a weight block 14 that can reciprocate in a straight line parallel to the trigger direction (the weight block 14 is made of metal material, preferably a metal with a high density, such as stainless steel or cast iron. The high density of the weight block 14 means a large mass per unit volume. The large mass of the weight block 14 means a large inertia. Only when the acceleration suddenly changes can the insurance be triggered by the weight block 14), and a damping component 12 that can provide a damping effect in the straight line direction. The damping component 12 is connected to the weight block 14 and is used to provide a damping force to the weight block 14 in the opposite direction of a single direction. The present invention sets the damping component 12 and mainly adjusts the displacement of the weight block 14 through the damping component 12, thereby realizing the graded triggering of the insurance.

[0035] For example: when a small impact occurs, the damping component 12 intervenes, and the displacement of the weight 14 is small, then the first level of insurance is triggered (after the first level of insurance is triggered, the weight 14 can be reset through the damping component 12, and there is no need for maintenance personnel to manually reset it); when a large impact occurs, the damping component 12 intervenes, but the inertia of the weight 14 is large, and the displacement of the weight 14 is large, then the second level of insurance is triggered (after the second level of insurance is triggered, the weight 14 cannot be reset through the damping component 12, and at this time, maintenance personnel need to manually reset it).

[0036] A trigger device is provided in front of the weight 14 in a single direction (i.e. the trigger direction mentioned above). The trigger device can be linked with the weight 14 under specific circumstances (as can be seen from the above, taking a collision as an example, if a small collision occurs and has no effect on the continued operation of the underwater operating equipment, there is no need to trigger the insurance. At this time, even if the weight 14 moves, the trigger device will not interact with the weight 14 to trigger the insurance. However, when a large collision occurs, the trigger device can be triggered and started by the weight 14, that is, the movement of the weight 14 can trigger the movement of the trigger device, thereby triggering the insurance) to achieve insurance triggering.

[0037] Specifically, along a single direction (i.e., the trigger direction mentioned above), when the acceleration changes (by adjusting the damping force of the damping component 12, the acceleration change threshold can be adjusted. When it is less than the threshold, the trigger device does not act, and when it is not less than the threshold, the trigger device acts), the weight 14 can overcome the damping force and move forward and can contact the trigger device for triggering the insurance. The above-mentioned trigger device is preferably a micro switch 9, and the above-mentioned trigger device action refers to the switching action of the circuit conduction and disconnection state.

[0038] According to the above-mentioned improvement and innovation ideas, the structure of the weight block 14 and the trigger device of the present invention is as follows: the weight block 14 is made of stainless steel or cast iron material, and the weight block 14 adopts an integrated molding structure design according to its specific structure. In order to ensure that the weight block 14 moves in a straight line under the action of inertia, the weight block 14 adopts a regular geometric structure. In a specific embodiment of the present invention, the weight block 14 adopts a cylindrical structure design (of course, a regular polyhedron structure can also be adopted). Furthermore, an annular flange is also provided at one end of the weight block 14, and one side of the annular flange is flush with the end face of the weight block 14, which is a T-shaped structure under the main viewing angle. Specifically, the weight block 14 includes a first sliding section and a first limiting groove. Along the triggering direction, the first sliding section is arranged in front of the first limiting groove.

[0039] Specifically, the first sliding section is a smooth structure. As can be seen from the above, when a small impact occurs, the weight 14 can be reset under the action of the damping component 12. At the same time, the first limit block 7 is in contact with the weight 14 (sliding structure). In order to avoid the first limit block 7 from affecting the sliding of the weight 14 while not interfering with the reset of the weight 14, the present invention designs a first sliding section with a smooth surface structure on the weight 14, and the first limit block 7 is in sliding contact with the first sliding section.

[0040] The present invention provides a first limiting assembly, which includes a first limiting block 7, which is slidably matched with the first sliding section, and the first limiting block 7 has a tendency to move toward the inner space of the weight block 14 (the first limiting block 7 needs to be linked with the weight block 14 to trigger the insurance action under specific circumstances, such as a large impact. A first limiting groove is provided on the weight block 14, and the first limiting block 7 can be inserted into the first limiting groove. Therefore, the first limiting block 7 needs to always maintain a tendency to move toward the inner space of the weight block 14 so that it can be quickly and reliably inserted into the first limiting groove when the displacement of the weight block 14 is large).

[0041] Furthermore, the structure of the first limit block 7 is as follows: the first limit block 7 is an arm structure, and the first limit block 7 is integrally formed with a hard material (preferably a polymer material, such as PVC plastic), or can be integrally formed with a metal material, such as stainless steel or aluminum profile. The first limit block 7 is a movable component. In order to install it, the present invention also provides a first mounting rod 10. The first limit block 7 has an arm structure, that is, the first limit block 7 has a long rod-shaped arm, one end of the first limit block 7 is assembled on the first mounting rod 10 (the first mounting rod 10 is a round rod, and a circular sleeve is provided at one end of the first limit block 7 for assembling with the first mounting rod 10, so that the first limit block 7 can be rotatably assembled on the first mounting rod 10 through the circular sleeve), the other end of the first limit block 7 (the part for contacting with the first sliding section can be designed as a spherical structure, which can reduce the contact surface and reduce the sliding friction) is slidably matched with the first sliding section and can be inserted into the first limit groove, the first limit block 7 can rotate around the first mounting rod 10, and a first torsion spring 6 is sleeved on the first mounting rod 10, the first torsion spring 6 is connected to the first limit block 7, and is used to apply torque to the first limit block 7 to drive the first limit block 7 to elastically press against the first sliding section of the weight 14.

[0042] The present invention also provides a base 8, which is a component for realizing the installation of multiple structures in the present invention. Therefore, the base 8 should have a high structural strength. A weight mounting rod 11 is arranged on the base 8. The weight mounting rod 11 is preferably a round rod structure. As can be seen from the above, the weight 14 is a cylindrical structure. The weight 14 can be slidably mounted on the weight mounting rod 11, and the weight 14 is coaxially arranged with the weight mounting rod 11, so that it can be ensured that the weight 14 can perform a linear motion along its axis.

[0043] The first mounting rod 10 is fixedly arranged on the base 8 and is arranged parallel to the weight mounting rod 11. The first mounting rod 10 and the weight mounting rod 11 can be installed on the base 8 by threaded connection or by interference fitting.

[0044] Furthermore, the damping component 12 is a spring. Under normal conditions, the spring is in a compressed state, that is, the spring is deformed by the gravity of the weight block 14. Of course, in this state, the spring also has the potential for further deformation to ensure that the weight block 14 can move under the action of inertia and further compress the spring. Specifically, the spring is sleeved on the weight block mounting rod 11, one end of the spring is against the upper side of the base 8, and the other end of the spring is against the lower side of the weight block 14. An annular flange is provided on the edge of the lower side of the weight block 14.

[0045] As mentioned above, the present invention provides a structure that can trigger the insurance of the underwater working equipment by the change of acceleration in a single direction. In addition, the present invention also provides a insurance structure that can only be triggered underwater, which is as follows: it includes a hydraulic rod 3 (the hydraulic rod 3 is a rod that can be displaced under the action of water pressure) and a second limit block 15 (the second limit block 15 can be linked with the hydraulic rod 3 under a specific water pressure to contact the restriction of the movement of the counterweight 14, so as to realize the contact of the insurance after the underwater working equipment enters the water, and is used to ensure that the acceleration triggers the insurance structure to enter the working state).

[0046] Specifically, the second limit block 15 is installed on the base 8 through the second installation rod 13, and the second torsion spring 16 is provided to provide torque to the second limit block 15, so that the second limit block 15 acts in a specific state.

[0047] In the present invention, the hydraulic rod 3 is mainly used to sense the change of the surrounding water pressure, and its setting posture, angle, etc. are not specifically limited. For example, in a specific embodiment of the present invention, the hydraulic rod 3 can reciprocate on a straight line parallel to the triggering direction, and the hydraulic rod 3 can move under the action of water pressure.

[0048] The hydraulic rod 3 mainly senses the change of water pressure and can move when the water pressure changes. Therefore, any structure that can be deformed by water pressure in the prior art can be applied to the present invention. For example, an air bag is provided, the air bag has an opening, a sleeve is installed at the opening in an airtight manner, the hydraulic rod 3 is slidably assembled into the sleeve, and the air bag is compressed after entering the water, and the gas in the air bag can push the hydraulic rod 3 in the sleeve to move.

[0049] In a specific embodiment of the present invention, the present invention further provides a holder 17, which is integrally formed of a polymer material, and a support column 4 is provided between the holder 17 and the base 8 to achieve relative fixation of the holder 17 and the base 8. A hydraulic membrane 1 assembly is provided at the top of the hydraulic rod 3, and the hydraulic membrane 1 assembly is used to convert water pressure into driving force to drive the hydraulic rod 3 to move. Specifically, the hydraulic membrane 1 assembly includes a hydraulic membrane 1 (a polymer material film, which should have certain flexibility, high structural strength and impermeability) and a hydraulic membrane seat 18, on which a groove structure is arranged. The hydraulic membrane 1 is elastically arranged on the hydraulic membrane seat 18 through a pressure ring 2 (the elasticity is due to the fact that the hydraulic membrane 1 itself has certain elasticity) (the hydraulic membrane 1 covers the groove structure of the hydraulic membrane seat 18) and forms a pressure chamber with an airtight structure between the hydraulic membrane seat 18 (the air pressure in the pressure chamber is one atmosphere), and the top end of the hydraulic rod 3 penetrates into the pressure chamber and is connected to the hydraulic membrane 1, and can convert the water pressure through the hydraulic membrane 1 to drive the hydraulic rod 3 to move.

[0050] One end of the hydraulic rod 3 needs to pass through the hydraulic membrane seat 18 and enter the pressure chamber. In order to ensure that the pressure chamber does not leak (if the pressure chamber leaks, the pressure chamber is connected to the external water, and the pressure is consistent, and the hydraulic membrane 1 cannot be used to drive the hydraulic rod 3 to move), the present invention is provided with a sealing hole connected to the pressure chamber on the hydraulic membrane seat 18, and a sealing component (flexible rubber or silicone component) is provided on the sealing hole. The hydraulic rod 3 and the sealing component are a sealed sliding connection structure, and the top of the hydraulic rod 3 is penetrated into the pressure chamber through the sealing component and connected to the hydraulic membrane 1. Of course, the sealing component can also be a flexible film, which can not only realize the sealing of the sealing hole, but also ensure the smooth movement of the hydraulic rod 3 by its own deformation. Of course, when the sealing component adopts a flexible film, its softness must have a certain difference with the softness of the hydraulic membrane 1, and the higher the difference, the better, so that one of the membrane structures can be driven by water pressure to drive the hydraulic rod 3 to move. Of course, the softness of the hydraulic membrane 1 should be higher than the softness of the sealing component.

[0051] Furthermore, a pressure-adjusting spring 5 is provided between the sealing component and the seat. The pressure-adjusting spring 5 is a water pressure spring. The pressure-adjusting spring 5 is used to drive the sealing component to change the volume of the pressure chamber. When the volume of the pressure chamber changes (the gas in the pressure chamber is not released), the atmospheric pressure becomes smaller when the volume changes, and the atmospheric pressure becomes larger when the volume decreases. Therefore, the trigger diving depth can be adjusted.

[0052] The hydraulic rod 3 is used to change the position state of the second limit block 15, so as to achieve the locking or release of the weight block 14. In the present invention, the hydraulic rod 3 is provided with a second sliding section and a second limit groove, and the second sliding section is a smooth structure. The above-mentioned structural form of the hydraulic rod 3 and the structural form and function acting on the weight block 14 are similar. Along a single direction, the second sliding section is arranged in front of the second limit groove; the second limit block 15 is slidably matched with the second sliding section, and the second limit block 15 has a tendency to move toward the internal space of the hydraulic rod 3.

[0053] Based on the structural design of the hydraulic rod 3 and the second limit block 15, the present invention can design the relative structure between the hydraulic rod 3 and the weight block 14, so that the second limit block 15 can be controlled by the hydraulic rod 3 and can also achieve the locking and release of the weight block 14. The second limit block 15 has two postures: 1. It is against the smooth section of the hydraulic rod 3 and clamps the weight block 14; 2. It enters the second limit groove with the smooth section of the hydraulic rod 3 and disengages from the first limit groove of the weight block 14 to achieve the release of the weight block 14. Based on the two posture structures of the second limit block 15, the present invention defines that: the second sliding section is arranged relative to the first limit groove and forms a first state space, the second limit groove is arranged relative to the first limit groove and forms a second state space, when the second limit block 15 is located in the first state space, it can slide against the second sliding section and be clamped in the first limit groove, and when the second limit block 15 is located in the second state space, it can be clamped into the second limit groove and disengaged from the first limit groove.

[0054] The present invention provides a safety device for underwater working equipment. The present invention can release the first safety by external water pressure, and then release the second safety by high acceleration (such as collision, impact). After the two safety are released, the circuit system connected to the safety device is connected and starts to work. The specific actions of the present invention are as follows: After the safety device enters the water, the external water pressure generates pressure on the hydraulic membrane 1 to make the hydraulic rod 3 move downward. When the hydraulic rod 3 descends and releases the limit with the first limit block 7, the first limit block 7 rotates out of the first limit groove under the force of the torsion spring. When the safety mechanism is launched or collided with the product, the weight block 14 compresses the damping component 12 under the action of high acceleration to move, and the weight block 14 can press down the contact arm of the micro switch 9. The circuit system connected to the micro switch 9 is connected and starts to work.

[0055] The present invention provides an underwater acceleration insurance device, which is used to trigger the acceleration insurance of underwater working equipment. In the present invention, the underwater acceleration insurance device is used to trigger the insurance for the acceleration change in a single direction, and the single direction is the trigger direction. Specifically, the underwater acceleration insurance device includes a weight 14 that can reciprocate on a straight line parallel to the trigger direction and a damping component 12 that can provide a damping effect in the straight line direction. The damping component 12 is connected to the weight 14 and is used to provide a damping force opposite to the single direction to the weight 14; along the single direction, a trigger device is arranged in front of the weight 14; along the single direction, when the acceleration changes, the weight 14 can overcome the damping force and move forward and can contact the trigger device for triggering the insurance. Through the above-mentioned structural design, the present invention provides an acceleration change trigger insurance device in the form of a mechanical structure, which is applied to underwater working equipment and can trigger the start insurance when the underwater working equipment collides. The present invention is a safety mechanism for mechanical equipment with high reliability.

[0056] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. An underwater acceleration insurance device, used to trigger the acceleration mutation insurance of underwater working equipment, characterized in that: The underwater acceleration safety device is used to trigger the insurance for a sudden acceleration change in a single direction, where the single direction is the trigger direction; The underwater acceleration safety device comprises a weight block capable of reciprocating in a straight line parallel to the trigger direction and a damping component capable of providing a damping effect in a straight line parallel to the trigger direction, wherein the damping component is connected to the weight block and is used to provide a damping force to the weight block in the opposite direction to the trigger direction; A trigger device is provided in front of the weight block along the trigger direction; Along the triggering direction, when the acceleration changes, the weight block can overcome the damping force and move forward and can contact the triggering device to trigger the insurance; The weight block includes a first sliding section and a first limiting groove, and the first sliding section is a smooth structure; Along the single direction, the first sliding section is arranged in front of the first limiting groove; It also includes a first limiting assembly, the first limiting assembly includes a first limiting block, the first limiting block is slidably matched with the first sliding section, and the first limiting block has a tendency to move toward the inner space of the weight block; The first limit block is an arm structure; Also included is a first mounting rod; One end of the first limit block is assembled on the first mounting rod, the other end of the first limit block is slidably matched with the first sliding section and can be inserted into the first limit groove, and the first limit block can rotate around the first mounting rod; A first torsion spring is sleeved on the first mounting rod, the first torsion spring is connected to the first limiting block and is used to apply a torsion force to the first limiting block to drive the first limiting block to elastically press against the first sliding section of the weight block; Also included is a base, on which a weight mounting rod is disposed; The weight block is a cylindrical structure, and the weight block can be slidably sleeved on the weight block mounting rod, and the weight block and the weight block mounting rod are coaxially arranged; The first mounting rod is fixedly disposed on the base and is arranged parallel to the weight mounting rod; The damping component is a spring; The spring is sleeved on the weight block mounting rod, one end of the spring abuts against the upper side of the base, and the other end of the spring abuts against the lower side of the weight block; An annular flange is provided on the lower side edge of the weight block; It also includes a hydraulic rod and a second limiting block; The hydraulic rod can reciprocate in a straight line parallel to the triggering direction, and the hydraulic rod can move under the action of water pressure; The hydraulic rod is provided with a second sliding section and a second limiting groove, and the second sliding section is a smooth structure; Along the single direction, the second sliding section is arranged in front of the second limiting groove; The second limit block is slidably matched with the second sliding section, and the second limit block has a tendency to move toward the inner space of the hydraulic rod; The second sliding section is arranged opposite to the first limiting groove and forms a first state space, and the second limiting groove is arranged opposite to the first limiting groove and forms a second state space; When the second limit block is located in the first state space, it can slide against the second sliding section and be clamped in the first limit groove; when the second limit block is located in the second state space, it can be clamped into the second limit groove and detached from the first limit groove; After the safety device enters the water, the external water pressure exerts pressure on the hydraulic membrane to make the hydraulic rod move downward. When the hydraulic rod descends and releases the limit with the first limit block, the first limit block rotates out of the first limit groove under the action of the torsion spring to release the first safety. When the safety mechanism is launched or collides with the product, the weight compresses the damping component under high acceleration to move, and the weight can press down the contact arm of the trigger device to release the second safety and enable the trigger device to connect to the circuit system and start working.

2. The underwater acceleration safety device according to claim 1, characterized in that: Also included is a card seat, the card seat is relatively fixed to the base; A hydraulic membrane assembly is arranged at the top end of the hydraulic rod, and the hydraulic membrane assembly includes a hydraulic membrane and a hydraulic membrane seat. The hydraulic membrane is elastically arranged on the hydraulic membrane seat and forms a pressure chamber with an airtight structure with the hydraulic membrane seat. The top end of the hydraulic rod penetrates into the pressure chamber and is connected to the hydraulic membrane, and the water pressure can be converted through the hydraulic membrane to drive the hydraulic rod to move.

3. The underwater acceleration safety device according to claim 2, characterized in that: A sealing hole communicating with the pressure chamber is arranged on the hydraulic membrane seat, a sealing component is arranged on the sealing hole, the hydraulic rod and the sealing component are a sealed sliding connection structure, and the top end of the hydraulic rod penetrates into the pressure chamber through the sealing component and is connected to the hydraulic membrane.

4. The underwater acceleration safety device according to claim 3, characterized in that: A pressure regulating spring is arranged between the sealing component and the clamping seat, and the pressure regulating spring is used to drive the sealing component to move so as to change the volume of the pressure chamber.

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