Anti-explosion rearview mirror and manufacturing method thereof

Abstract

The invention discloses an anti-explosion rearview mirror and a manufacturing method thereof, and belongs to the field of rearview mirrors, the anti-explosion rearview mirror comprises rearview mirror glass of a curved surface structure, a supporting assembly module matched with the curved surface is arranged on the back face of the rearview mirror glass, and a connecting piece used for being connected with application equipment is arranged on the side, back on to the rearview mirror glass, of the supporting assembly module. And a damping assembly is arranged on the connecting piece. The manufacturing method comprises the following steps: manufacturing the supporting assembly module component by adopting a light high-strength metal material; the rearview mirror glass is made of specially-made high-strength glass and is directly formed on the metal supporting block in a hot bending mode. Welding parts of the supporting assembly module; rearview mirror glass is evenly bonded to the supporting assembly module, and it is guaranteed that the centers are located at the same position; finally, the connecting piece and the damping assembly are installed. The rearview mirror provided by the invention is not easy to break, good in impact resistance and relatively good in explosion-proof performance; and the coating has the properties of strong adhesive force, corrosion resistance, easiness in cleaning and the like.

Description

Technical Field

[0001] The invention mainly relates to the field of rearview mirrors, and in particular to an explosion-proof rearview mirror and a manufacturing method thereof. Background Art

[0002] Rearview mirrors are necessary observation equipment for motor vehicles, ships and other mobile equipment. Some motor vehicles may encounter strong impact or vibration caused by explosions, and need to be equipped with explosion-proof rearview mirrors. However, there are two major types of explosion-proof rearview mirrors at present. One type is rearview mirrors with inorganic glass as the mirror surface, which have poor impact resistance and are easily shattered and ineffective; the other type is rearview mirrors with stainless steel or organic materials as the mirror surface, which have poor weather resistance and unclear mirror surface. In particular, in order to avoid being shattered, the rearview mirror on the artillery launcher must be removed before firing the artillery and installed after firing, which seriously restricts the basic requirements of rapid artillery strikes and rapid evacuation. In order to solve this problem, some people have tried to use mirror stainless steel materials and organic materials to make rearview mirrors, but these materials have high thermal expansion rates and poor weather resistance. The mirror surface is easily damaged by factors such as wind and sand, high and low temperatures, and cannot completely solve the problem of explosion-proof rearview mirrors. Summary of the invention

[0003] The technical solution of the present invention aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology. It mainly provides an explosion-proof rearview mirror and a manufacturing method thereof, which are used to solve the technical problems of traditional rearview mirrors being fragile, having poor impact resistance, and having the mirror surface easily blurred mentioned in the above background technology.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: An explosion-proof rearview mirror comprises a rearview mirror glass, wherein the rearview mirror glass is arranged as a curved structure, a support assembly module is arranged on the back of the rearview mirror glass, a connector for connecting to application equipment is arranged on the side of the support assembly module facing away from the rearview mirror glass, and a shock absorbing component is arranged on the connector.

[0005] Furthermore, the support assembly module includes a metal support block for mounting the rearview mirror glass, and the metal support block has the same shape and size as the end face of the rearview mirror glass, and the curved surface matches that of the end face of the rearview mirror glass.

[0006] Furthermore, the support assembly module also includes a reinforced mounting block fixed on the side of the metal support block facing away from the rearview mirror glass. The shape of the reinforced mounting block is the same as that of the metal support block, and the curved surface is consistent with that of the metal support block. The length and width of the reinforced mounting block are 10-30% of the corresponding dimensions of the metal support block, and the thickness is 3-8 mm.

[0007] Furthermore, the three curved surfaces of the rearview mirror glass, the metal support block and the enhanced mounting block are superimposed in sequence, and their centers are co-located.

[0008] Furthermore, a central positioning hole is provided at the center of the metal support block, and positioning pins matching the central positioning hole are formed at the center of the side of the rearview mirror glass and the enhanced mounting block facing the metal support block.

[0009] Furthermore, a reflective coating is coated on the back of the rearview mirror glass, and the reflective coating includes a bottom layer and a top layer, the bottom layer is made of modified silica, and the top layer is composed of a mixture of silica and titanium dioxide; the silica in the reflective coating accounts for 40-60% of the total weight; the titanium dioxide accounts for 0.5-2% of the total weight; and the reflective coating also contains a surfactant, which accounts for 0.1-1% of the total weight.

[0010] Furthermore, a protective film is attached to the front side of the rearview mirror glass.

[0011] Furthermore, the rearview mirror glass and the metal support block are bonded together by an adhesive layer, and the adhesive layer is evenly located between the rearview mirror glass and the metal support block.

[0012] Furthermore, a sealing member is provided around the joint surface of the support assembly module and the rearview mirror glass.

[0013] Further, the connecting member includes a mounting rod and a mounting tube fixed to one end of the mounting rod, the end of the mounting rod facing away from the mounting tube is used to connect with the application equipment, one end face of the mounting tube is fixedly connected to the mounting rod, a connecting rod for connecting the enhanced mounting block is provided on the side of the mounting tube facing away from the mounting rod, the connecting rod passes through the other end face of the mounting tube and extends into the interior of the mounting tube, and an elastic sleeve is provided at a position on the mounting tube for the connecting rod to pass through; The shock absorbing assembly includes a counterweight cylinder sleeved on the outside of the mounting rod, the inner annular surface of the counterweight cylinder is provided with a first hydraulic cylinder for supporting the peripheral side of the mounting rod at equal intervals along its circumference, and the inner annular surface of the mounting cylinder is provided with a second hydraulic cylinder for supporting the peripheral side of the connecting rod at equal intervals along its circumference, the second hydraulic cylinder corresponds to the first hydraulic cylinder one by one and is aligned, and the corresponding second hydraulic cylinder is connected to the first hydraulic cylinder through a hose; the weight of the counterweight cylinder is greater than the sum of the weights of other components of the explosion-proof rearview mirror.

[0014] Furthermore, the mounting rod comprises an outer rod and an inner rod telescopically arranged at one end of the outer rod, and a first spring for resisting the inner rod is arranged in the inner cavity of the outer rod.

[0015] Furthermore, the outer end of the connecting rod is connected to the back side of the enhanced mounting block through a ball head structure, and the ball head structure includes a hemispherical connecting seat and a mirror seat, and a bowl-shaped angle adjustment piece is clamped between the hemispherical connecting seat and the mirror seat recess; the inner bottom of the angle adjustment piece has a plurality of inner grooves extending in two directions to the mouth, and the outer top of the angle adjustment piece has a plurality of outer ridges extending in two directions to the edge of the mouth, and the inner grooves of the angle adjustment piece are perpendicular to the outer ridges; a groove that matches the outer ridge of the angle adjustment piece is left in the mirror seat recess; a ridge that matches the inner groove of the angle adjustment piece is left on the top of the hemispherical connecting seat.

[0016] Furthermore, a protective airbag is arranged on the port side of the mirror base facing the rearview mirror assembly, and the protective airbag is connected to an air cylinder through an air pipe. The air cylinder is fixedly mounted on the mounting cylinder, and a first piston, a second piston and a second spring located between the two pistons are arranged in the air cylinder; an air storage chamber connected to the air pipe is formed in the inner cavity of the air cylinder on the side of the first piston facing away from the second piston; a piston rod extending to the outside of the air cylinder is arranged on the side of the second piston facing away from the first piston, and a cylinder cap is threadedly connected to one side end of the piston rod of the air cylinder, and the piston rod of the second piston contacts the inner end surface of the cylinder cap.

[0017] The present invention also provides a method for manufacturing an explosion-proof rearview mirror, which is used to manufacture the above-mentioned explosion-proof rearview mirror, comprising the following steps: S1. Manufacturing of metal support blocks and enhanced mounting blocks: Made of lightweight and high-strength metal materials, they are precisely processed and manufactured according to the designed dimensions; S2. Preparation of rearview mirror glass: using special high-strength glass, directly hot-bending it on the metal support block; S3. Welding support assembly module: Using high-precision welding technology, the enhanced mounting block is firmly welded to the center of the back of the metal support block to form a support assembly module; S4. Prepare a rearview mirror assembly: uniformly bond the rearview mirror glass to the front of the support assembly module, ensure that the three curved surfaces of the rearview mirror glass, the metal support block and the enhanced mounting block are sequentially superimposed and their centers are in the same position, and prepare the rearview mirror assembly; S5. Install the connector and the shock-absorbing assembly on the back of the enhanced mounting block to obtain the explosion-proof rearview mirror.

[0018] Furthermore, in step S3, a welding positioning tool is first used to align the center of the enhanced mounting block with the metal support block; then spot welding is performed to initially fix the position, and then full welding is performed.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The present invention is provided with a rearview mirror glass with a curved surface structure and a support assembly module (metal support block and reinforced mounting block) whose curved surface matches the rearview mirror glass, and the centers of the rearview mirror glass and the support assembly module are co-located, so that the force and torque generated when subjected to external force are more balanced, thereby preventing the rearview mirror glass from being broken due to local stress concentration. In addition, a shock-absorbing component is provided between the rearview mirror component and motorized equipment such as vehicles and ships, and the shock-absorbing component can effectively absorb and disperse the impact kinetic energy from the outside, thereby improving the stability and safety of the rearview mirror. The rearview mirror provided by the present invention is not easy to break and has good impact resistance, that is, it has good explosion-proof performance. The present invention also provides a reflective coating applied to the back of the rearview mirror glass. The top layer of the reflective coating is composed of a mixture of silicon dioxide and titanium dioxide, which has a high reflectivity and can ensure that a clear reflected image can be provided even under dim light conditions; it has a low surface energy, so that dirt and water droplets are not easy to adhere. In addition, the titanium dioxide surface coating has a photocatalytic function, and organic matter attached to the surface can be decomposed by photocatalysis, thereby realizing the self-cleaning function of the mirror glass. The bottom layer of the reflective coating is composed of modified silicon dioxide, so that the adhesion between the coating and the glass substrate is strong, which can ensure that the coating will not fall off under impact or vibration; the coating as a whole is resistant to acids, alkalis and other chemicals, so that it can maintain its performance under various environmental conditions. That is, the mirror surface of the present invention is clear and has the properties of strong adhesion, corrosion resistance, and easy cleaning. The shock-absorbing assembly provided in the optimization scheme of the present invention can reduce or even eliminate the vibration and impact force in the circumferential direction of the rearview mirror assembly through the arrangement of the counterweight cylinder, the first hydraulic cylinder, and the second hydraulic cylinder, so that the rearview mirror assembly tends to remain stable, thereby better preventing the rearview mirror glass from bursting due to vibration. Through the arrangement of the outer rod, the inner rod, and the first spring, the impact force transmitted by the rearview mirror assembly in the direction perpendicular to the rearview mirror glass can be absorbed, and the vibration transmitted by motorized equipment such as cars and ships in the direction perpendicular to the rearview mirror glass can also be buffered. In summary, the shock-absorbing assembly of the present invention can achieve comprehensive shock-absorbing protection for the rearview mirror assembly. In the optimized solution of the present invention, by setting the protective airbag, air pipe and air reservoir back member, during the vibration process of the rearview mirror assembly, before the rearview mirror assembly deviates to the limit position relative to the mirror seat, the protective airbag must be squeezed first, and the compression of the second spring generates a reverse blocking force to block the continued vibration and displacement of the rearview mirror assembly, and the closer the rearview mirror assembly is to the limit position, the greater the obstruction, thereby effectively preventing the rearview mirror assembly from deviating to the limit position, which can solve the problem that the rearview mirror glass is more likely to break due to vibration and displacement to the limit position. In addition, by rotating the barrel cap, the ability of the mechanism to block the vibration of the rearview mirror assembly can be adjusted. Thereby, the shock absorption performance of the explosion-proof rearview mirror is optimized. In the manufacturing method of the explosion-proof rearview mirror provided by the present invention, the manufacturing of the rearview mirror glass is not produced by conventional steel female molds and male molds, but is directly hot-bent on the metal support block. Compared with the traditional steel mold production, it is equivalent to customizing the rearview mirror glass according to each metal support block, so that the two are more closely matched, thereby better ensuring the effect of evenly dispersing the impact force; the metal support block and the welding reinforcement block are prepared by lightweight and high-strength metal materials, which effectively improves the impact resistance and stability of the rearview mirror, and also improves the weather resistance of the explosion-proof rearview mirror; the shock-absorbing component is set on the installation side of the rearview mirror assembly, which can further enhance the impact resistance and overall stability of the explosion-proof rearview mirror. In general, the manufacturing method provided by the present invention is simple and easy to implement, and can be widely used in the manufacture of explosion-proof rearview mirrors for motorized equipment such as vehicles and ships, and improves the protection performance and reliability of the equipment. The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the explosion-proof rearview mirror provided in the second embodiment of the present invention; Figure 2 It is a schematic diagram of the arrangement of the coating, lamination, etc. on the rearview mirror glass in the present invention; Figure 3 A side view of the explosion-proof rearview mirror provided in the second embodiment of the present invention; Figure 4 A cross-sectional view of the explosion-proof rearview mirror provided in the second embodiment of the present invention from a side view perspective; Figure 5 This is a schematic diagram of the three-dimensional structure of the explosion-proof rearview mirror provided in the third embodiment of the present invention; Figure 6 A cross-sectional view of the explosion-proof rearview mirror provided in Embodiment 3 of the present invention from a side perspective; Figure 7 for Figure 6 Schematic diagram of the enlarged structure of area A in the middle.

[0021] : 1. Metal support block; 2. Reinforced mounting block; 3. Rearview mirror glass; 4. Connecting piece; 41. Mounting rod; 411. Outer rod; 412. Inner rod; 413. First spring; 42. Mounting tube; 43. Connecting rod; 5. Shock absorber assembly; 51. Counterweight tube; 52. First hydraulic cylinder; 53. Second hydraulic cylinder; 54. Hose; 6. Glue layer; 7. Protective film; 8. Reflective coating; 9. Seal; 10. Ball head structure; 101. Hemispherical connector; 102. Mirror seat; 103. Angle adjustment plate; 11. Protective airbag; 12. Air pipe; 13. Air storage cylinder; 131. First piston; 132. Second piston; 133. Second spring; 134. Cylinder cap. DETAILED DESCRIPTION

[0022] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0025] Example 1: Please refer to the attached Figure 1 and attached Figure 2 , an explosion-proof rearview mirror, comprising: Rearview mirror glass 3: The observation component at the core of the rearview mirror is designed as a curved surface in structure, and presents an arc-shaped structure with a bulge in the middle in the height direction; it is made of specially made lightweight and high-strength inorganic glass, and has good impact resistance, acid and alkali resistance, surface wear resistance and other properties, and can withstand strong impact or vibration caused by large-equivalent explosions, and has excellent weather resistance and durability, and will not cause mirror blurring due to harsh environments; Metal support block 1: the main support structure of the rearview mirror, made of lightweight and high-strength metal material (such as aviation aluminum or closed foam aluminum), matching the curved surface of the rearview mirror glass 3 and the shape; and the two are bonded by a bonding layer 6; Reinforced mounting block 2: A metal block made of the same material as the metal support block 1, fixed at the center of the back of the metal support block 1 by welding to enhance the overall strength and impact resistance of the rearview mirror; the length and width dimensions are 10-30% of the corresponding dimensions of the metal support block 1; the thickness range is 3-8mm; the three curved surfaces of the rearview mirror glass 3, the metal support block 1 and the reinforced mounting block 2 are superimposed in sequence, and the centers are co-located, so that the forces and moments generated by the three when subjected to external forces are more balanced.

[0026] Protective film 7: attached to the front of the rearview mirror glass 3 to protect the surface of the rearview mirror glass 3; Reflective coating 8: coated on the back of the rearview mirror glass 3 to ensure the clarity of the reflected field of view; Sealing member 9: It is sleeved around the joint surface of the metal support block 1 and the rearview mirror glass 3 to seal the bonding layer 6 between the metal support block 1 and the rearview mirror glass 3; it is a rubber ring or structural adhesive or other types of sealing materials, used to prevent moisture, dust or other foreign substances from invading the rearview mirror assembly. It plays a role in protecting the bonding layer 6 and extending the life of the bonding layer 6; Connector 4: connected to the side of the enhanced mounting block 2 facing away from the metal support block 1, used to connect with motorized equipment such as vehicles and ships to achieve the installation of explosion-proof rearview mirrors; Shock-absorbing assembly 5: mounted on the connecting member 4, used to achieve buffering and shock absorption between motorized equipment such as vehicles and ships and the rearview mirror assembly.

[0027] In this embodiment, the reflective coating 8 is composed of the following chemical components: silicon dioxide (SiO2) as a base material, accounting for 40-60% of the total weight; a trace amount of titanium dioxide (TiO2), accounting for 0.5-2% of the total weight, as a stabilizer; the coating also contains a surfactant to enhance the adhesion between the coating and the glass substrate, accounting for 0.1-1% of the total weight; the structure of the coating is a multi-layer composite structure, including a bottom layer and a top layer, the bottom layer is composed of modified silicon dioxide (active functional groups such as hydroxyl groups or silicon oxygen bonds are introduced on the surface of silicon dioxide) to enhance the chemical bonding with the glass substrate; the top layer is composed of a mixture of silicon dioxide and titanium dioxide (the weight ratio of silicon dioxide to titanium dioxide in the top layer is approximately 20:1 to 10:1), forming a protective layer to prevent the coating from wear and corrosion and realize the self-cleaning function of the mirror glass; the surfactant is located in the bottom layer, and its function is to enhance the adhesion between the coating and the substrate (glass). The surfactant ensures that the coating will not fall off under force or impact by improving dispersibility and adhesion.

[0028] The reflective coating 8 has the following advantages: ①High reflectivity: The coating has high reflectivity to ensure a clear reflected image even in low light conditions.

[0029] ②Corrosion resistance: The coating is resistant to acids, alkalis and other chemicals, enabling it to maintain performance under a variety of environmental conditions.

[0030] ③ Adhesion: The adhesion between the coating and the glass substrate is strong to ensure that the coating will not fall off under impact or vibration.

[0031] ④Easy to clean: The coating has low surface energy, making it difficult for dirt and water droplets to adhere and easy to clean.

[0032] ⑤ Realize self-cleaning function by photocatalytically decomposing organic matter on the mirror surface.

[0033] The manufacturing method of the above explosion-proof rearview mirror comprises the following steps: S1. Manufacturing of the metal support block 1: using lightweight and high-strength metal materials (such as aviation aluminum or closed-cell foam aluminum) and forming a shape consistent with the target size and curved surface of the rearview mirror glass 3 through CNC milling and other technologies; S2. Manufacturing of the enhanced mounting block 2: the material is the same as that of the metal support block 1, and the curved surface is precisely processed to match the metal support block 1, and the length and width are 10-15% of the metal support block 1; the thickness of the enhanced mounting block 2 is in the range of 3-8mm to ensure the structural strength; S3, preparation of rearview mirror glass 3: through the production process of special high-strength glass, it is directly hot-bent on the metal support block 1, which is equivalent to custom-making hot bending according to each metal support block 1, and the profile is more fitted; and a high-precision reflective coating 8 is applied on the back to ensure the mirror surface is clear; and a protective film 7 is attached to the front to protect the mirror surface; S4. Welding support assembly module: Use laser welding or other high-precision welding technology to firmly weld the enhanced mounting block 2 to the center position of the back of the metal support block 1, thereby forming a support assembly module, which can improve the support strength; S5. Prepare a rearview mirror assembly: uniformly bond the rearview mirror glass 3 to the front of the support assembly module, ensure that the three curved surfaces of the rearview mirror glass 3, the metal support block 1 and the enhanced mounting block 2 are sequentially superimposed and their centers are in the same position, and prepare the rearview mirror assembly; S6. Install the connector 4 and the shock-absorbing assembly 5 on the back of the enhanced mounting block 2 to obtain an explosion-proof rearview mirror.

[0034] For the rearview mirror assembly, since the materials are homogeneous and the thickness is constant, the center of the rearview mirror assembly is the geometric center of the plane and the projection position of the center of gravity. The operations to achieve high-precision center alignment include: ①Precision machining and quality control: The center of gravity of a homogeneous material is located at its geometric center. First, the size and shape accuracy of the metal support block 1 and the reinforcement mounting block 2 need to be ensured through precision machining technology, such as a CNC machining center (CNC), so that their center of gravity is located at the designed center position. In addition, a three-dimensional coordinate measuring machine (CMM) can be used for quality control inspection to ensure that the center of gravity position of the component meets the design requirements.

[0035] ②Location pins and positioning holes: During assembly, locating pins and locating holes are used to ensure the correct alignment of the components. A central locating hole is designed on the metal support block 1, and corresponding locating pins are designed on the reinforced mounting block 2 and the rearview mirror glass 3 to ensure that their centers are aligned during assembly.

[0036] ③ Positioning tooling: Welding fixtures are manufactured to the exact dimensions of the component to ensure that the component remains in the correct position and alignment during the welding process.

[0037] ④Welding sequence and method: When welding the enhanced mounting block 2 and the metal support block 1, the welding sequence and method are first spot welding to initially fix the position, and then full welding to avoid deformation during welding that affects the center of gravity position.

[0038] When in use, the explosion-proof rearview mirror can be fixed on the corresponding parts of vehicles, ships and other motorized equipment after assembly to achieve normal rearview function. When resisting explosion, the reinforced mounting block 2 strengthens the metal support block 1 so that it does not deform; the metal support block 1 supports the rearview mirror glass 3 so that it does not break. When impacted, the impact force first acts on the three curved surfaces of the rearview mirror glass 3, the metal support block 1 and the reinforced mounting block 2. The three curved surfaces are designed with consistent arc surfaces and there is no gap between them to ensure that the impact force can be evenly distributed and avoid local stress concentration. The three curved surfaces are evenly stressed and their force is transmitted to the shock absorbing assembly 5. The kinetic energy generated by the explosion is released through the elastic displacement of the shock absorbing assembly 5, thereby achieving the anti-explosion function.

[0039] The explosion-proof rearview mirror of the present invention has the following functions: ① The rearview mirror glass 3 provides observation function, while ensuring a clear field of vision through high-strength glass and reflective coating 8; ② The metal support block 1 and the enhanced mounting block 2 are co-located with the rearview mirror glass 3, which enhances the structural strength of the rearview mirror, increases the stability and impact resistance of the rearview mirror glass, and ensures that the glass mirror surface will not break or fail under strong impact or vibration; ③ Shock-absorbing component 5, effectively dispersing external impact force and protecting the rearview mirror glass from damage; ④ The seal 9 prevents erosion from the external environment and provides additional shock-absorbing protection.

[0040] In summary, the present invention uses the strength support of the metal support block and the reinforcement block, as well as the shock-absorbing function of the shock-absorbing assembly, so that the explosion-proof rearview mirror can withstand the impact or vibration caused by a large-yield explosion, ensuring the durability and clarity of the rearview mirror in harsh environments, and greatly improving the rearview safety of mobile equipment.

[0041] Embodiment 2: This embodiment differs from Embodiment 1 in that: In this embodiment, please refer to the attached Figure 1 , Attachment Figure 3 and attached Figure 4The connecting member 4 includes a mounting rod 41 and a mounting tube 42 fixed at one end of the mounting rod 41, and a connecting rod 43 connected to the mounting tube 42. The end of the mounting rod 41 facing away from the mounting tube 42 is used to connect with motorized equipment such as vehicles and ships. One end surface of the mounting tube 42 is fixedly connected to the mounting rod 41. The connecting rod 43 passes through the other end surface of the mounting tube 42 and extends to the inside of the mounting tube 42. An elastic sleeve is provided at the position on the mounting tube 42 for the connecting rod 43 to pass through. The outer end of the connecting rod 43 is connected to the back of the enhanced mounting block 2 through the ball head structure 10.

[0042] The shock absorbing assembly 5 includes a weight cylinder 51 sleeved on the outside of the mounting rod 41, and the inner annular surface of the weight cylinder 51 is provided with a first hydraulic cylinder 52 for supporting the circumference of the mounting rod 41 at equal intervals along its circumference, and the inner annular surface of the mounting cylinder 42 is provided with a second hydraulic cylinder 53 for supporting the circumference of the connecting rod 43 at equal intervals along its circumference, and the second hydraulic cylinder 53 corresponds to the first hydraulic cylinder 52 one by one and is aligned, and the corresponding second hydraulic cylinder 53 is connected to the first hydraulic cylinder 52 through a hose 54. The weight of the weight cylinder 51 is greater than the sum of the weights of other components of the explosion-proof rearview mirror.

[0043] During application, the counterweight cylinder 51 is obviously larger, so that it has a larger inertia. When a vehicle, ship or other motorized equipment vibrates radially (from the perspective of the mounting rod 41), the mounting rod 41 vibrates accordingly, and the mounting cylinder 42 can vibrate with the mounting rod 41 in a relatively timely manner. The connecting rod 43 connected to the rearview mirror assembly has a smaller hysteresis and vibrates later; the counterweight cylinder 51 has a larger hysteresis and vibrates last. The mounting rod 41 and the mounting cylinder 42 are displaced first, while the connecting rod 43 and the counterweight cylinder 51 are stationary. During the period when the counterweight cylinder 51 is stationary, the first hydraulic cylinder 52 in the offset direction of the mounting rod 41 is immediately compressed, and liquid is injected into the corresponding second hydraulic cylinder 53 through the corresponding hose 54, causing its piston to extend. During the period when the connecting rod 43 is stationary, the mounting cylinder 42 is offset, so that the distance between the fixed end of the second hydraulic cylinder 53 corresponding to the offset direction of the mounting rod 41 and the connecting rod 43 is increased, which is just adapted to the aforementioned action of being injected with liquid, and the piston of the second hydraulic cylinder 53 is in an extended state. During the injection process, the connecting rod 43 will be displaced due to the delayed end, and the second hydraulic cylinder 53 in its offset direction is just in an extended state due to the injection effect, which can buffer or even offset the displacement of the connecting rod 43, thereby slowing down or even eliminating the vibration of the rearview mirror assembly.

[0044] The mounting rod 41 includes an outer rod 411 and an inner rod 412 which is telescopically arranged at one end of the outer rod 411. A first spring 413 for resisting the inner rod 412 is arranged in the inner cavity of the outer rod 411. During application, when the rearview mirror assembly is subjected to an impact force perpendicular to the rearview mirror glass 3, it will be transmitted to the first spring 413, so that the impact force is absorbed by the deformation of the first spring 413, and the greater the deformation of the first spring 413, the greater the elastic reset force generated, which can offset the impact force, thereby helping to prevent the rearview mirror assembly from bursting due to the impact force, that is, it is conducive to promoting the explosion-proof performance of the rearview mirror assembly. At the same time, when motorized equipment such as cars and ships vibrates in a direction perpendicular to the rearview mirror glass 3, the vibration in this direction can also be buffered by the deformation reset effect of the first spring 413, thereby facilitating the shock absorption protection of the rearview mirror assembly.

[0045] The rest is the same as the first embodiment.

[0046] Embodiment 3: This embodiment differs from Embodiment 2 in that: In this embodiment, please refer to the attached Figure 7 The ball head structure 10 includes a hemispherical connection seat 101 and a mirror seat 102. The mirror seat 102 has a concave hole that matches the hemispherical connection seat 101. A bowl-shaped angle adjustment sheet 103 is sandwiched between the concave holes of the hemispherical connection seat 101 and the mirror seat 102. The inner bottom of the angle adjustment sheet 103 has a plurality of inner grooves extending in two directions to the mouth, and the outer top of the angle adjustment sheet 103 has a plurality of outer ridges extending in two directions to the edge of the mouth. The inner grooves of the angle adjustment sheet 103 are perpendicular to the outer ridges; the mirror seat 1 A groove is left in the concave 102 that matches the outer ridge of the angle adjustment sheet 103; a ridge is left on the top of the hemispherical connector 101 that matches the inner groove of the angle adjustment sheet 103; a radial nail-shaped spring shaft seat (not shown in the figure) is installed on the top of the hemispherical connector 101, and the spring shaft seat passes through the hemispherical connector 101, the angle adjustment sheet 103 and is connected to the bottom of the concave 102 of the mirror seat; the root of the spring shaft seat 104 is installed with a third spring (not shown in the figure) on the inner and outer peripheries of the hemispherical connector 101. The hemispherical connector 101 is fixedly connected to the rearview mirror assembly, and the mirror seat 102 is fixed on the connecting rod 43. This arrangement facilitates the angle adjustment of the rearview mirror assembly.

[0047] In the prior art, during the vibration of the rearview mirror assembly, once the rearview mirror assembly is offset to the extreme position relative to the mirror seat 102, and the vibration force in this direction still exists, it is easy to cause the rearview mirror glass to break. Figure 5-Figure 7A protective airbag 11 is arranged on the port side of the mirror base 102 facing the rearview mirror assembly, and the protective airbag 11 is connected to an air cylinder 13 through an air pipe 12. The air cylinder 13 is fixedly installed on the side outside the mounting cylinder 42, and a first piston 131, a second piston 132 and a second spring 133 located between the first piston 131 and the second piston 132 are arranged in the air cylinder 13; a portion of the air cylinder 13 containing a cavity on the side of the first piston 131 facing away from the second piston 132 forms an air storage cavity, and the air storage cavity is communicated with the air pipe 12; a piston rod extending to the outside of the air cylinder 13 is arranged on the side of the second piston 132 facing away from the first piston 131, and a cylinder cap 134 is threadedly connected to one side end of the piston rod of the air cylinder 13, and the piston rod of the second piston 132 abuts against the inner end surface of the cylinder cap 134.

[0048] When in use, the angle adjustment range of the rearview mirror assembly is limited and will not contact the protective airbag 11. During the vibration of the rearview mirror assembly, the protective airbag 11 must be squeezed before the rearview mirror assembly deviates to the extreme position relative to the mirror base 102. The protective airbag 11 is squeezed to pass the gas through the air pipe 12 into the gas storage chamber of the gas storage cylinder 13, pushing the first piston 131 to squeeze the second spring 133, so that the second spring 133 is compressed, generating a reverse blocking force, thereby blocking the continued vibration and displacement of the rearview mirror assembly, and the closer the rearview mirror assembly is to the extreme position, the greater the obstruction, thereby effectively preventing the rearview mirror assembly from deviating to the extreme position, which can solve the problem of the aforementioned rearview mirror glass breakage. In addition, by rotating the cylinder cap 134, the position of the second piston 132 can be adjusted, thereby adjusting the initial state of the second spring 133 (achieved by limiting the initial position of the first piston 131, that is, limiting the initial size of the air storage chamber) or adjusting the air pressure in the air storage chamber and the protective airbag 11 (without limiting the initial position of the first piston 131). Both of these situations can adjust the ability of the present mechanism to hinder the vibration of the rearview mirror assembly.

[0049] The rest is the same as the second embodiment.

[0050] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An explosion-proof rearview mirror, comprising a rearview mirror glass (3), characterized in that: The rearview mirror glass (3) is configured as a curved structure, a support assembly module is provided on the back of the rearview mirror glass (3), a connecting piece (4) for connecting to application equipment is provided on the side of the support assembly module facing away from the rearview mirror glass (3), and a shock absorbing component (5) is provided on the connecting piece (4).

2. The explosion-proof rearview mirror according to claim 1, characterized in that: The support assembly module comprises a metal support block (1) for mounting the rearview mirror glass (3); the metal support block (1) and the end surface of the rearview mirror glass (3) have the same shape and size, and the curved surfaces match.

3. The explosion-proof rearview mirror according to claim 2, characterized in that: The support assembly module further comprises a reinforced mounting block (2) fixed to the side of the metal support block (1) facing away from the rearview mirror glass (3); the reinforced mounting block (2) has the same shape as the metal support block (1) and a curved surface that matches the metal support block (1); the length and width of the reinforced mounting block (2) are 10-30% of the corresponding dimensions of the metal support block (1), and the thickness is 3-8 mm.

4. The explosion-proof rearview mirror according to claim 3, characterized in that: The three curved surfaces of the rearview mirror glass (3), the metal support block (1) and the enhanced mounting block (2) are superimposed in sequence, and their centers are co-located.

5. The explosion-proof rearview mirror according to claim 4, characterized in that: A central positioning hole is provided at the center of the metal support block (1), and positioning pins matching the central positioning hole are formed at the center of the side of the rearview mirror glass (3) and the reinforced mounting block (2) facing the metal support block (1).

6. The explosion-proof rearview mirror according to claim 1, characterized in that: The rear view mirror glass (3) is coated with a reflective coating (8) on its back, the reflective coating (8) comprising a bottom layer and a top layer, the bottom layer being made of modified silicon dioxide, and the top layer being made of a mixture of silicon dioxide and titanium dioxide; in the reflective coating (8), silicon dioxide accounts for 40-60% of the total weight; titanium dioxide accounts for 0.5-2% of the total weight; and surfactant accounts for 0.1-1% of the total weight.

7. The explosion-proof rearview mirror according to claim 1, characterized in that: A protective film (7) is attached to the front side of the rearview mirror glass (3).

8. The explosion-proof rearview mirror according to claim 2, characterized in that: The rearview mirror glass (3) and the metal support block (1) are bonded together via an adhesive layer (6), and the adhesive layer (6) is evenly located between the rearview mirror glass (3) and the metal support block (1).

9. The explosion-proof rearview mirror according to claim 8, characterized in that: A sealing member (9) is sleeved around the joint surface between the support assembly module and the rearview mirror glass (3).

10. The explosion-proof rearview mirror according to claim 1, characterized in that: The connecting member (4) comprises a mounting rod (41) and a mounting tube (42) fixed to one end of the mounting rod (41); the end of the mounting rod (41) facing away from the mounting tube (42) is used to connect with application equipment; one end surface of the mounting tube (42) is fixedly connected to the mounting rod (41); a connecting rod (43) for connecting to the enhanced mounting block (2) is provided on the side of the mounting tube (42) facing away from the mounting rod (41); the connecting rod (43) passes through the other end surface of the mounting tube (42) and extends into the interior of the mounting tube (42); and an elastic sleeve is provided on the mounting tube (42) at a position where the connecting rod (43) passes through. The shock absorbing assembly (5) comprises a weight cylinder (51) sleeved on the outside of the mounting rod (41); the inner annular surface of the weight cylinder (51) is provided with first hydraulic cylinders (52) for supporting the mounting rod (41) at equal intervals along its circumference; the inner annular surface of the mounting cylinder (42) is provided with second hydraulic cylinders (53) for supporting the connecting rod (43) at equal intervals along its circumference; the second hydraulic cylinders (53) correspond to the first hydraulic cylinders (52) one by one and are arranged in alignment; and the corresponding second hydraulic cylinders (53) are connected to the first hydraulic cylinders (52) via a hose (54); the weight of the weight cylinder (51) is greater than the sum of the weights of other components of the explosion-proof rearview mirror.

11. The explosion-proof rearview mirror according to claim 10, characterized in that: The mounting rod (41) comprises an outer rod (411) and an inner rod (412) telescopically arranged at one end of the outer rod (411), and a first spring (413) for resisting the inner rod (412) is arranged in an inner cavity of the outer rod (411).

12. The explosion-proof rearview mirror according to claim 10, characterized in that: The outer end of the connecting rod (43) is connected to the back side of the enhanced mounting block (2) via a ball head structure (10); the ball head structure (10) comprises a hemispherical connecting seat (101) and a mirror seat (102); a bowl-shaped angle adjustment sheet (103) is sandwiched between the hemispherical connecting seat (101) and the mirror seat (102) recess; the inner bottom of the angle adjustment sheet (103) has a plurality of inner grooves extending in both directions to the mouth; the outer top of the angle adjustment sheet (103) has a plurality of outer convex ridges extending in both directions to the mouth edge; the inner grooves of the angle adjustment sheet (103) are perpendicular to the outer convex ridges; the recess of the mirror seat (102) has a groove matching the outer convex ridge of the angle adjustment sheet (103); the top of the hemispherical connecting seat (101) has a convex ridge matching the inner groove of the angle adjustment sheet (103).

13. The explosion-proof rearview mirror according to claim 12, characterized in that: A protective airbag (11) is arranged on the port side of the mirror seat (102) facing the rearview mirror assembly, and the protective airbag (11) is connected to an air cylinder (13) via an air pipe (12); the air cylinder (13) is fixedly mounted on the mounting cylinder (42); a first piston (131), a second piston (132) and a second spring (133) located between the two pistons are arranged in the air cylinder (13); an air storage chamber connected to the air pipe (12) is formed in the inner cavity of the air cylinder (13) at a side of the first piston (131) facing away from the second piston (132); a piston rod extending to the outside of the air cylinder (13) is arranged at a side of the second piston (132) facing away from the first piston (131); a cylinder cap (134) is threadedly connected to one end of the piston rod of the air cylinder (13), and the piston rod of the second piston (132) abuts against the inner end surface of the cylinder cap (134).

14. A method for manufacturing an explosion-proof rearview mirror, used for manufacturing the explosion-proof rearview mirror according to any one of claims 1 to 13, characterized in that: The steps include: S1. Manufacturing of the metal support block (1) and the reinforced mounting block (2): using lightweight and high-strength metal materials and being precisely processed and manufactured according to the designed dimensions; S2. Preparation of rearview mirror glass (3): using specially made high-strength glass and directly hot-bending it on the metal support block (1); S3. Welding the support assembly module: using high-precision welding technology, the reinforced mounting block (2) is firmly welded to the center position of the back of the metal support block (1) to form a support assembly module; S4, preparing a rearview mirror assembly: uniformly bonding the rearview mirror glass (3) to the front of the supporting assembly module, ensuring that the three curved surfaces of the rearview mirror glass (3), the metal supporting block (1) and the enhanced mounting block (2) are sequentially superimposed and their centers are co-located, thereby preparing the rearview mirror assembly; S5. Install the connecting piece (4) and the shock absorbing assembly (5) on the back of the enhanced mounting block (2) to obtain an explosion-proof rearview mirror.

15. The method for manufacturing an explosion-proof rearview mirror according to claim 14, characterized in that: In step S3, a welding positioning tool is first used to align the center of the reinforcement installation block (2) and the metal support block (1); then spot welding is performed to initially fix the position, and then full welding is performed.

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