A mechanical delay linear motion structure and usage method for a fuze

Abstract

The present invention discloses a mechanical delay linear motion structure and a usage method for a fuse. The mechanical delay linear motion structure includes a linear motion assembly, a safety structure, and a damping medium. The linear motion assembly includes a cylinder block, a piston, and an energy storage element. The piston divides the interior of the cylinder block into an upper cavity and a lower cavity in the vertical direction, and the upper part of the piston extends out of the cylinder block. The energy storage element is arranged in the upper cavity. A damping medium is arranged inside the lower cavity, a flow discharge channel is arranged at the lower part of the cylinder block, and a quick-release seal is arranged at the flow discharge channel. The solution proposed by the present invention can achieve unidirectional delay linear motion, with accurate motion and controllable time, which is beneficial to improving the safety and reliability of the fuse system. As an independent functional structure module, it is convenient to operate, has a simple structure, and low manufacturing cost. It can be used as a manual delay release safety device for the fuse. After the safety is released, it can achieve a delay within a certain time range and provide a trigger signal for the arming and functioning structure of the fuse.

Description

Technical Field

[0001] The present invention relates to the technical field of fuzes, and in particular to a mechanical delay linear motion structure and a usage method for fuzes. Background Art

[0002] The fuze is a crucial component in the ammunition system, which can improve the lethality and accuracy of ammunition and is known as the "brain of ammunition" and the "eyes of ammunition". At the same time, as one of the important military technologies, the fuze not only relates to the combat effect but also affects the safety of combatants. Therefore, a fuze device with high safety and high reliability is of great significance for military strikes and the safety of combatants.

[0003] In GJB 373B-2019 "Fuzes Safety Design Criteria", regarding the redundant insurance devices of the fuze safety system, it is mentioned that the arming and disarming device of the fuze should have at least two sets of independent insurance devices, and each set of insurance devices can prevent the accidental disarming of the fuze. Therefore, it is required that each set of insurance structures is independent of each other and there should be no common cause. At the same time, the control and action of the insurance device should be functionally separated from other processes within the ammunition system, and the disarming of each independent insurance device requires incentives from different environments or combinations of environments to disarm the insurance. Therefore, at least two different environments or combinations of environments are also required to stimulate the disarming of the insurance in manually emplaced weapons. Additionally, in the case of insufficient available launch environments, the use of manually disarmed insurance devices is allowed, but the manual disarming of the fuze system is not allowed. Therefore, designing an independent, safe, and reliable manually disarmed insurance device is of great significance. Summary of the Invention

[0004] The purpose of the present invention is to provide a mechanical delay linear motion structure and a usage method for fuzes to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the technical solution of the present invention provides a mechanical delay linear motion structure for fuzes, including a linear motion component, an insurance structure, and a damping medium; the linear motion component includes a cylinder body, a piston, and an energy storage element; the piston divides the interior of the cylinder body into an upper cavity and a lower cavity in the vertical direction, and the upper part of the piston extends out of the cylinder body; the energy storage element is arranged in the upper cavity; a damping medium is arranged inside the lower cavity, a flow discharge channel is arranged at the lower part of the cylinder body, the flow discharge channel is communicated with the lower cavity, and a quick-release seal is arranged at the flow discharge channel; the insurance structure includes a limit pin; the limit pin is removably installed in the middle of the area where the piston extends out of the cylinder body.

[0006] Furthermore, the linear motion structure further includes a damping structure; the damping structure is arranged at the flow discharge channel.

[0007] Further, the damping medium is any one of a liquid fluid and solid particles with fluid properties; the liquid fluid damping medium includes, but is not limited to, any one of water, alcohol, grease, organic oil, and antifreeze; the solid particles with fluid properties include, but are not limited to, any one of stainless steel beads, glass beads, quartz sand, and emery.

[0008] Further, the linear motion assembly further includes an upper end cap and a lower end cap; the piston includes a piston portion and a piston rod. The piston portion is disc-shaped, and the center of the top is connected to the piston rod. The piston portion divides the interior of the cylinder body into an upper cavity and a lower cavity in the vertical direction. The top of the cylinder body is connected to the upper end cap, and a through hole is provided at the top of the upper end cap. The upper end of the piston rod extends out of this through hole; the bottom of the cylinder body is provided with a lower end cap, which is connected by a threaded structure, and a drain hole is provided at the corresponding position of the drain channel. A quick-release seal is provided at the drain hole; the quick-release seal includes a head and a plunger portion. The plunger portion is cylindrical and made of a soft elastic material, and is inserted into the drain channel and / or the drain hole of the lower end cap.

[0009] Further, a through hole is provided in the middle and upper part of the piston rod, and after the piston rod extends out of the through hole at the top of the upper end cap, the limit pin of the insurance structure can be removably inserted into this through hole.

[0010] Further, the damping structure is a disc-shaped sheet; the damping structure is provided with pore channels.

[0011] Further, the damping medium is a liquid fluid, and the damping structure includes a base and an upper seat; the base includes a mounting chassis, a lower outer ring, a lower inner ring, a plurality of plungers, and a positioning groove. The mounting chassis is disc-shaped, and a lower outer ring and a lower inner ring are provided on its upper surface. The lower inner ring is located inside the lower outer ring. A plurality of plungers are arranged in an array on the inner side of the lower outer ring. A positioning groove is provided on the mounting chassis outside the lower outer ring; a lower through hole is provided on the mounting chassis inside the lower inner ring; the upper seat includes a chassis, an upper outer ring, an upper inner ring, an upper top plate, and a plurality of upper through holes; the chassis is a disc-shaped structure with an opening in the center. The inner diameter of the opening is the same as the outer diameter of the lower outer ring. An upper outer ring and an upper inner ring are provided at the opening. The upper inner ring is located inside the upper outer ring. An upper top plate is provided above the upper outer ring and the upper inner ring. A plurality of upper through holes are arranged in an array on the upper top plate between the upper outer ring and the upper inner ring; the upper outer ring is sleeved outside the lower outer ring, and the chassis is placed in the positioning groove. In the horizontal projection, the area of the plunger is greater than or equal to the area of the upper through hole; the upper inner ring is located between the lower outer ring and the lower inner ring, and the three chambers between the lower outer ring and the upper inner ring, between the upper inner ring and the lower inner ring, and inside the lower inner ring are communicated.

[0012] Further, the height of the lower outer ring is equal to the distance from the top surface of the chassis to the bottom surface of the upper top plate. The height of the upper inner ring and the height of the lower inner ring are less than the distance from the top surface of the chassis to the bottom surface of the upper top plate, or the height of the upper inner ring and the height of the lower inner ring are equal to the distance from the top surface of the chassis to the bottom surface of the upper top plate. Meanwhile, a number of upper inner ring notches and lower inner ring notches are provided at the lower end of the upper inner ring and the upper end of the lower inner ring.

[0013] Further, the lower outer ring and the lower inner ring are coaxial, and the upper inner ring is not coaxial with the lower outer ring and the lower inner ring.

[0014] The present invention also discloses a usage method of a mechanical delay linear motion structure for a fuse. Using the above mechanical delay linear motion structure, the usage method includes the following steps: S1. Structure installation: Fill the damping medium inside the lower cavity, install the insurance structure on the piston, install the quick-insert seal in place, and install the mechanical delay linear motion structure onto the fuse body; S2. After receiving the preparatory work signal instruction, quickly remove the quick-release seal and wait for the insurance release signal instruction; S3. After receiving the insurance release signal, immediately pull out the limit pin to release the insurance structure; S4. After releasing the insurance structure, the piston moves linearly downward under the action of the energy storage element, and the damping medium gradually flows out to achieve the delay effect. When the delay reaches the predetermined time, the piston moves to the predetermined position, and the externally connected safety and arming mechanism starts to work.

[0015] The mechanical delay linear motion structure for a fuse proposed by the present invention has the following beneficial effects compared with the prior art. This solution can achieve unidirectional delay linear motion, with accurate movement and controllable time, which is beneficial to improving the safety and reliability of the fuse system; as an independent functional structure module, it is convenient to operate, has a simple structure, and low manufacturing cost; it can be used as a manual delay release insurance device for the fuse. After releasing the insurance, it can achieve a delay within a certain time range and provide a trigger signal for the safety and arming structure of the fuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional sectional view of a mechanical delay linear motion structure for a fuse according to the present invention in the armed state.

[0017] Figure 2 is a sectional view of a mechanical delay linear motion structure for a fuse according to an embodiment of the present invention in the armed state.

[0018] Figure 3 is a partially enlarged sectional view of the bottom seal area of the present invention.

[0019] Figure 4 is a top view of a mechanical delay linear motion structure for a fuse according to an embodiment of the present invention in the armed state.

[0020] Figure 5It is a schematic diagram showing the connection between the mechanical delay linear motion structure and the safety and actuation structure in an embodiment of the present invention.

[0021] Figure 6 It is a schematic diagram of the explosion of the damping structure in another embodiment of the present invention.

[0022] Figure 7 It is a partial three-dimensional sectional schematic diagram of the damping structure in another embodiment of the present invention

[0023] Figure 8 It is a sectional schematic diagram of the damping structure in another embodiment of the present invention.

[0024] Figure 9 It is a schematic diagram of the installation position of the damping structure in another embodiment of the present invention.

[0025] Figure 10 It is a sectional schematic diagram of the damping structure in yet another embodiment of the present invention.

[0026] Figure 11 It is a partial cross-sectional schematic diagram of the damping structure in two embodiments of the present invention.

[0027] 1 - Linear motion structure, 2 - Safety structure, 3 - Damping structure, 11 - Cylinder block, 111 - Upper cavity, 112 - Lower cavity, 113 - Drainage channel, 114 - Groove part, 12 - Piston, 120 - Piston part, 121 - Piston seal, 123 - Piston rod, 13 - Energy storage element, 14 - Upper end cap, 15 - Lower end cap, 151 - Bottom seal, 152 - Quick-release seal, 153 - Protruding part, 154 - Drainage hole, 21 - Pull ring, 22 - Limit pin, 30 - Sealing gasket, 31 - Base, 311 - Mounting chassis, 312 - Lower outer ring, 313 - Lower inner ring, 314 - Plunger, 315 - Positioning groove, 316 - Lower through hole, 32 - Upper seat, 321 - Chassis, 322 - Upper outer ring, 323 - Upper inner ring, 324 - Upper top plate, 3241 - Breaking hole, 325 - Upper through hole, 33 - Safety film, 34 - Film-breaking cone, b1 - Protruding indication part, b2 - Indication groove, 323q - Upper inner ring notch, 313q - Lower inner ring notch, 4 - Safety and actuation structure, 41 - Rotor, 5 - Fuse body. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] As shown in the appendix Figures 1-5As shown in the figure, a mechanical delay linear motion structure for a fuse according to the present invention includes: a linear motion assembly 1, a safety structure 2, a damping medium (not shown in the drawings), and a damping structure 3;

[0030] Among them, the linear motion assembly 1 can perform a single-delay linear motion along a fixed direction. The linear motion assembly includes a cylinder block 11, a piston 12, a piston seal 121, an energy storage element 13, an upper end cover 14, a lower end cover 15, and a bottom seal 151; the piston 12 includes a piston portion 120 and a piston rod 123. The piston portion 120 is disc-shaped and is connected to the piston rod at the center of the top. A piston seal 121 is provided on the outside of the piston portion 120. The piston portion 120 divides the interior of the cylinder block 11 into an upper cavity 111 and a lower cavity 112 in the vertical direction. The top of the cylinder block 11 is connected to the upper end cover 14, and a through hole is provided at the top of the upper end cover 14. The upper end of the piston rod 123 extends out of the through hole.

[0031] The safety structure 2 includes a pull ring 21 and a limit pin 22; the limit pin 22 is removably installed in the middle of the area where the piston 12 extends out of the cylinder block to limit the movement of the piston 12; specifically, a through hole is provided in the middle and upper part of the piston rod 123. After the piston rod 123 extends out of the through hole at the top of the upper end cover 14, the limit pin 22 is inserted into the through hole to realize the limitation of the piston 12.

[0032] The energy storage element 13 is installed between the upper end cover 14 and the piston 12 and can provide a moving power source for the piston 12. In an embodiment of the present invention, the energy storage element 13 is a compression spring.

[0033] A damping medium (not shown in the drawings) is provided inside the lower cavity 112. A drain channel 113 is provided at the lower part of the cylinder block 11. The drain channel 113 is communicated with the lower cavity 112. A quick-release seal 152 is provided at the drain channel 113. When the quick-release seal 152 is pulled out, the damping medium can flow out through the drain channel 113.

[0034] The damping medium includes any one of those in existing industrial technologies but not limited to liquid fluids and solid particles with fluid properties, etc. Among them, the liquid fluid damping medium includes: any one selected according to the actual industrial application scenarios, such as water, alcohol, grease, organic oil, antifreeze, etc. Among them, the solid particle damping medium with fluid properties includes: any one selected according to the actual industrial application scenarios, such as stainless steel beads, glass beads, quartz sand, emery, etc.

[0035] Further, in an embodiment of the present invention, a lower end cover 15 is provided at the bottom of the cylinder block 11 and is connected through a threaded structure. A drain hole 154 is provided at a corresponding position of the drain passage 113, and a quick-release seal 152 is provided at the drain hole 154. A bottom seal 151 is provided at the connection between the lower end cover 15 and the cylinder block 11.

[0036] The bottom seal 151 and the piston seal 121 can be sealing rings or O-rings.

[0037] The quick-release seal 152 includes a head and a plunger portion. The plunger portion is cylindrical and made of a soft elastic material, and is plugged into the drain passage 113 and / or the drain hole 154 of the lower end cover 15 to block it.

[0038] Before the damping medium works, it is placed inside the lower cavity 112; when the safety structure 2 is released, under the push of the energy storage element 13, the piston 12 moves downward, and the damping medium can flow out through the bottom drain passage 113 of the lower cavity 112. As shown in the appendix Figure 5 In this embodiment shown, the mechanical delay linear motion structure of the present invention is installed inside the fuse body 5. The tail of the piston 12 is connected to the safety and arming structure 4, which is used to limit the rotation of the rotor 41 inside the safety and arming structure to achieve the first stage of insurance. When the safety structure is released, the piston rod moves downward. After a predetermined time delay, the tail of the piston rod separates from the safety and arming structure to release the first stage of insurance.

[0039] Further, to achieve the controllability of the delay time, a damping structure 3 is provided at the drain passage 113 to control the outflow of the damping medium and play a role in delaying.

[0040] In an embodiment of the present invention, the damping medium is a liquid fluid, specifically industrial antifreeze at -45°C. In this embodiment, the damping structure 3 is a disc-shaped sheet.

[0041] Further, a protrusion 153 is provided at the center of the lower end cover 15, a groove portion 114 is provided at a corresponding position at the bottom of the cylinder block 11, a drain passage 113 is provided at the center of the groove portion 114, the protrusion 153 extends into the groove portion 114, the damping structure 3 is provided in the groove portion 114, and when the lower end cover 15 is screwed tightly with the cylinder block 11, the protrusion 153 presses against the damping structure 3 upward to fix it. To further improve the sealing performance, a gasket 30 is provided between the damping structure 3 and the protrusion 153 of the lower end cover 15.

[0042] In one embodiment of the present invention, the damping structure 3 is provided with pore channels. The micro-pores are not limited to single-sized / multi-sized combinations of single / array pore channels, but the pore channels can restrict the passage of the damping medium. The shape and number of the pore channels can be adaptively designed according to the delay requirements. In another embodiment of the present invention, in order to facilitate the observation of the outflow of the damping medium, a damping structure 3 with a single pore channel is adopted.

[0043] Due to the fact that the processing of the micro void channels poses certain challenges, furthermore, as shown in Figure 6 、 7 、8, and 9, the present invention also provides a damping structure 3, which includes a base 31, an upper seat 32, a safety film 33, and a film-breaking cone 34.

[0044] The base 31 includes an installation chassis 311, a lower outer ring 312, a lower inner ring 313, several plungers 314, and a positioning groove 315. The installation chassis 311 is disc-shaped, and its outer diameter is the same as the inner diameter of the bottom groove portion 114 of the cylinder block 11. A lower outer ring 312 and a lower inner ring 313 are provided on its upper surface. Among them, the lower inner ring 313 is located inside the lower outer ring 312. A plurality of array-distributed plungers 314 are provided on the inner side of the lower outer ring 312. A positioning groove is provided on the installation chassis 311 outside the lower outer ring 312. A lower through hole 316 is provided on the installation chassis 311 inside the lower inner ring 313.

[0045] The upper seat 32 includes a chassis 321, an upper outer ring 322, an upper inner ring 323, an upper top plate 324, and several upper through holes 325. The chassis 321 is a disc-shaped structure with an opening in the center. The inner diameter of the opening is the same as the outer diameter of the lower outer ring 312. An upper outer ring 322 and an upper inner ring 323 are provided at the opening. Among them, the upper inner ring 323 is located inside the upper outer ring 322. An upper top plate 325 is provided above the upper outer ring 322 and the upper inner ring 323. A plurality of array-distributed upper through holes 325 are provided on the upper top plate 325 between the upper outer ring 322 and the upper inner ring 323.

[0046] The upper outer ring 322 is rotatably sleeved outside the lower outer ring 312. The chassis 321 is placed in the positioning groove 315. The size of the positioning groove matches that of the chassis 321. In the horizontal projection, the area of the plunger 314 is greater than or equal to the area of the upper through hole 325, and the upper through hole 325 can partially or completely coincide with the horizontal projection of the plunger 314. By changing the angle between the upper outer ring 322 and the lower outer ring 312, the overlapping area between the upper through hole 325 and the plunger 314 can be adjusted. Furthermore, a protruding indication portion b1 is provided on the chassis 321, and several indication grooves b2 are provided at corresponding positions in the positioning groove 315 to correspond to the angle between the upper outer ring 322 and the lower outer ring 312.

[0047] The upper inner ring 323 is located between the lower outer ring 312 and the lower inner ring 313, and the three chambers between the lower outer ring 312 and the upper inner ring 323, between the upper inner ring 323 and the lower inner ring 313, and inside the lower inner ring 313 are communicated. The height of the lower outer ring 312 is equal to the distance from the top surface of the chassis 321 to the bottom surface of the upper top plate 324, and the heights of the upper inner ring 323 and the lower inner ring 313 are less than the distance from the top surface of the chassis 321 to the bottom surface of the upper top plate 324. Thus, the upper inner ring 323 and the lower inner ring 313 divide the space inside the lower outer ring 312 into three connected chambers, which can provide more resistance to the outflow of the damping medium.

[0048] Furthermore, as shown in the appendix Figure 10 As shown, the heights of the upper inner ring 323 and the lower inner ring 313 are equal to the distance from the top surface of the chassis 321 to the bottom surface of the upper top plate 324. At the same time, a number of upper inner ring notches 323q and lower inner ring notches 313q are provided at the lower end of the upper inner ring 323 and the upper end of the lower inner ring 313. The three chambers between the upper inner ring 323, the lower inner ring 313, and the lower outer ring 312 are communicated through the upper inner ring notches 323q and the lower inner ring notches 313q. At the same time, it can play a certain supporting role for the upper top plate 324.

[0049] Furthermore, the lower outer ring 312, the lower inner ring 313, and the upper inner ring 323 are coaxial, as shown in the appendix Figure 11 in the left figure, or they can be non - coaxial. When they are non - coaxial, as shown in the appendix Figure 11 in the right figure, the lower outer ring 312 and the lower inner ring 313 are coaxial, and the upper inner ring 323 is non - coaxial with the above two structures. With this design, the dimensions of the chambers between the lower outer ring 312 and the upper inner ring 323, and between the upper inner ring 323 and the lower inner ring 313 (the distance between the two ring walls) will change, which will increase the turbulence of the damping medium during its flow between them and increase the damping effect.

[0050] Furthermore, to improve the flexibility of adjusting the delay time (the outflow time of the damping medium), a rupture hole 3241 is provided in the area of the upper top plate 324 inside the upper inner ring 323, and a membrane - piercing cone 34 is provided at the lower part of the piston part 120 corresponding to the rupture hole 3241. The membrane - piercing cone 34 can pierce the rupture hole 3241 after the piston moves to a preset distance, increasing the flow rate of the damping medium and reducing the delay time. By adjusting the length of the membrane - piercing cone 34, the delay time can be further adjusted. Furthermore, the rupture hole 3241 is a structure provided with a preset rupture indentation, or the rupture hole 3241 is a through - hole, and a safety film 33 is covered on the rupture hole 3241. The lower part of the membrane - piercing cone 34 is a cavity structure, and through - holes are provided on the side. After piercing the safety film 33, a passage can be formed through the through - holes and the cavity structure to avoid blockage of the safety film 33.

[0051] The present invention also provides a method for using the mechanical delayed linear motion structure for a fuse, which is implemented by the mechanical delayed linear motion structure for a fuse provided above, and the method for using comprises the following steps:

[0052] S1, structural installation, filling the damping medium into the lower cavity 112, installing the safety structure 2 on the piston 12, installing the quick-insert seal 152 on the bottom of the lower end cover 15, and installing the mechanical delayed linear motion structure to the fuze body;

[0053] S2. After receiving the preparatory work signal command, quickly remove the quick-release seal 152 and wait for the release signal command;

[0054] S3, upon receiving the safety release signal, immediately pull the pull ring 21 to release the safety structure 2;

[0055] S4. After the safety structure 2 is released, the piston 12 moves linearly downward under the action of the energy storage element 13. Since the damping medium slowly flows out through the pore channel of the damping structure 3, a delay effect is achieved. When the delay reaches the predetermined time, the piston 12 moves to the predetermined position, and the externally connected safety mechanism starts to work.

[0056] It should be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A mechanical delay linear motion structure for a fuse, characterized in that, It includes a linear motion component, a safety structure, and a damping medium; the linear motion component includes a cylinder block, a piston, and an energy storage element; the piston divides the interior of the cylinder block into an upper cavity and a lower cavity in the vertical direction, and the upper part of the piston extends out of the cylinder block; the energy storage element is arranged in the upper cavity; a damping medium is arranged inside the lower cavity, a drain channel is arranged at the lower part of the cylinder block, the drain channel is communicated with the lower cavity, and a quick-release seal is arranged at the drain channel; the safety structure includes a limit pin; the limit pin is removably installed in the middle of the area where the piston extends out of the cylinder block; the linear motion structure further includes a damping structure; the damping structure is arranged at the drain channel; the damping medium is a liquid fluid, and the damping structure includes a base and an upper seat; the base includes a mounting chassis, a lower outer ring, a lower inner ring, a plurality of plungers, and a positioning groove; the mounting chassis is disc-shaped, a lower outer ring and a lower inner ring are arranged on its upper surface, the lower inner ring is located inside the lower outer ring, a plurality of plungers are arranged in an array on the inner side of the lower outer ring, and a positioning groove is arranged on the mounting chassis outside the lower outer ring; a lower through hole is arranged on the mounting chassis inside the lower inner ring; the upper seat includes a chassis, an upper outer ring, an upper inner ring, an upper top plate, and a plurality of upper through holes; the chassis is a disc-shaped structure with an opening in the center, the inner diameter of the opening is the same as the outer diameter of the lower outer ring, an upper outer ring and an upper inner ring are arranged at the opening, the upper inner ring is located inside the upper outer ring, an upper top plate is arranged above the upper outer ring and the upper inner ring, and a plurality of upper through holes are arranged in an array on the upper top plate between the upper outer ring and the upper inner ring; the upper outer ring is sleeved outside the lower outer ring, the chassis is placed in the positioning groove, and in the horizontal projection, the area of the plunger is greater than or equal to the area of the upper through hole; the upper inner ring is located between the lower outer ring and the lower inner ring, and the three chambers between the lower outer ring and the upper inner ring, between the upper inner ring and the lower inner ring, and inside the lower inner ring are communicated.

2. The mechanical delay linear motion structure according to claim 1, wherein, The damping medium includes any one of water, alcohol, grease, organic oil, and antifreeze.

3. The mechanical delay linear motion structure according to claim 1, wherein The linear motion component further includes an upper end cover and a lower end cover; the piston includes a piston part and a piston rod, the piston part is disc-shaped, the center of the top is connected to the piston rod, the piston part divides the interior of the cylinder block into an upper cavity and a lower cavity in the vertical direction, the top of the cylinder block is connected to the upper end cover, a through hole is arranged at the top of the upper end cover, and the upper end of the piston rod extends out of the through hole; the bottom of the cylinder block is provided with a lower end cover, which is connected by a threaded structure, a drain hole is arranged at the corresponding position of the drain channel, and the quick-release seal is arranged at the drain hole; the quick-release seal includes a head and a plunger part, the plunger part is cylindrical and made of a soft elastic material, and is inserted into the drain channel or the drain hole of the lower end cover; a through hole is arranged in the middle and upper part of the piston rod, and after the piston rod extends out of the through hole at the top of the upper end cover, the limit pin of the safety structure can be removably inserted into the through hole.

4. The mechanical delay linear motion structure according to claim 1, characterized in that, The height of the lower outer ring is equal to the distance from the top surface of the chassis to the bottom surface of the upper top plate. The height of the upper inner ring and the height of the lower inner ring are less than the distance from the top surface of the chassis to the bottom surface of the upper top plate, or the height of the upper inner ring and the height of the lower inner ring are equal to the distance from the top surface of the chassis to the bottom surface of the upper top plate. At the same time, a plurality of upper inner ring notches and lower inner ring notches are provided at the lower end of the upper inner ring and the upper end of the lower inner ring.

5. The mechanical delay linear motion structure according to claim 1, characterized in that, The lower outer ring and the lower inner ring are coaxial, and the upper inner ring is not coaxial with the lower outer ring and the lower inner ring.

6. The mechanical delay linear motion structure according to claim 3, characterized in that, A breaking hole is provided in the area of the upper top plate located inside the upper inner ring. A film-breaking cone is provided at the lower part of the piston part corresponding to the breaking hole. The breaking hole is a through hole and a safety film is covered on the breaking hole. The lower part of the film-breaking cone is a cavity structure and through holes are provided on the side surface.

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