Explosion-proof protective case

Abstract

An explosion-proof protective case for accommodating an electronic device, the electronic device having a button on a side surface thereof, and the explosion-proof protective case comprising a first shell, a second shell and a push button. The second shell comprises a button slot and a through hole, wherein the button slot corresponds to the button of the electronic device; and the through hole penetrates through a second connecting portion of the second shell and has a first opening end and a second opening end opposite each other, with the first opening end being in communication with the button slot and the second opening end being located on an outer wall surface of the second shell. The push button has a push portion and a push rod connected to the push portion, wherein the push portion is fitted in the button slot, and the push rod is fitted in the through hole, with the end of the push rod away from the push portion being partially exposed from the second opening end. The straight-line distance between the first opening end and the second opening end in the first direction is equal to the cross-sectional dimension of the second connecting portion in the first direction.

Description

Explosion-proof protective shell Technical Field

[0001] This invention relates to the field of protective cases, and in particular to protective cases suitable for housing electronic devices. Background Technology

[0002] In today's technologically advanced society, electronic devices are widely used in various industries. However, in the harsh or specialized environments of industrial applications, high or low temperatures, rain, dirt, dust, mud, snow, and moisture can all cause electronic devices to malfunction. Furthermore, electronic devices can be damaged by improper use (e.g., drops). Therefore, it is necessary to use specially designed protective cases to house and protect electronic devices, preventing damage from harsh environmental conditions and improper use, thus helping users complete their work or tasks.

[0003] On the other hand, when electronic devices housed in protective casings operate in hazardous environments, especially those containing hazardous gases or dust, they may spark or explode due to unforeseen circumstances. If such a spark or explosion occurs, the resulting gas pressure and flames could cause the protective casing to shatter simultaneously, resulting in injury to the user and potentially triggering a large-scale explosion in the entire hazardous environment, severely jeopardizing industrial safety.

[0004] Therefore, the technical problem that this invention aims to solve is how to provide an explosion-proof protective shell that complies with regulations and standards to prevent users or colleagues in hazardous locations from being injured or even causing serious industrial accidents. Summary of the Invention

[0005] Based on the foregoing description, the main objective of this invention is to provide an explosion-proof protective case suitable for installing electronic devices, which can prevent the protective case from cracking when the electronic device causes a spark or explosion in a hazardous location, and can reduce or block the leakage of explosive gases or flames from the explosion-proof protective case.

[0006] To achieve the aforementioned objectives, the present invention provides an explosion-proof protective shell with a accommodating space for accommodating electronic devices. The explosion-proof protective shell includes: a first shell, a second shell, and a push button. The first shell is circumferentially provided with a first connecting portion; the second shell is circumferentially provided with a second connecting portion for engaging with the first connecting portion. The second connecting portion has a through-hole with opposing first and second opening ends, the second opening end being located on the outer wall surface of the second shell. The second shell further includes: a button groove, and the first opening end communicating with the button groove. The push button has a pushing portion and a push rod connected to the pushing portion. The pushing portion is disposed in the button groove, and the push rod is disposed in the through-hole, with one end of the push rod away from the pushing portion partially exposed at the second opening end. The linear distance between the first opening end and the second opening end along a first direction is equal to the cross-sectional dimension of the second connecting portion along the first direction.

[0007] The present invention also provides an explosion-proof protective shell with a accommodating space for accommodating electronic devices. The explosion-proof protective shell includes: a first shell, a second shell, an explosion-proof bolt, and an anti-opening gate plate. The first shell is circumferentially provided with a first connecting portion; the second shell is circumferentially provided with a second connecting portion, the second connecting portion being used to engage with the first connecting portion. The second shell includes a threaded through hole, the threaded through hole penetrating the second connecting portion. The explosion-proof bolt has a rotating grip portion and a rotating shaft disposed at the axis of the rotating grip portion. The rotating shaft includes: a first rotating shaft portion and a second rotating shaft portion, the first rotating shaft portion being screwed into the threaded through hole; the second rotating shaft portion connecting the rotating grip portion and the first rotating shaft portion. The anti-opening gate plate is disposed on one side of the threaded through hole, including: a first end portion and a second end portion, the first end portion being pivotally connected to the second connecting portion, allowing the anti-opening gate plate to rotate relative to the second connecting portion; the second end portion has an engaging recess on the side facing the explosion-proof bolt, the engaging recess corresponding to the second rotating shaft portion. When the first rotating shaft is screwed into the threaded through hole to the locking position, the engaging notch interferes with the second rotating shaft and can be forced in and engaged on the second rotating shaft.

[0008] The present invention further provides an explosion-proof protective shell with a accommodating space for accommodating electronic devices. The explosion-proof protective shell includes a first shell and a second shell. The first shell is circumferentially provided with a first connecting portion, and the inner wall surface of the first connecting portion has a circumferentially provided wall portion, the wall portion having a first shaped surface. The second shell is circumferentially provided with a second connecting portion for engaging with the first connecting portion, and the inner wall surface of the second connecting portion has a circumferentially provided block-shaped portion, the block-shaped portion having a second shaped surface corresponding to the first shaped surface. When the first connecting portion and the second connecting portion are engaged, a bent explosion-proof path is formed between the first shaped surface and the second shaped surface.

[0009] The present invention further provides an explosion-proof protective shell with a accommodating space for accommodating an electronic device, the electronic device having a button. The explosion-proof protective shell includes: a first shell, a second shell, and a push button. The first shell is circumferentially provided with a first connecting portion, and the second shell is circumferentially provided with a second connecting portion for engaging with the first connecting portion. The second connecting portion has a through hole with opposing first and second opening ends, the second opening end being located on the outer wall surface of the second shell. The second shell further includes a button groove corresponding to a button, and the first opening end communicating with the button groove. The push button has a push portion and a push rod connected to the push portion. The push portion is disposed in the button groove and used to push the button, and the push rod is disposed in the through hole, with one end of the push rod away from the push portion partially exposed at the second opening end. The push portion has a push protrusion that abuts against the surface of the button, and the projected area of ​​the push protrusion is smaller than the projected area of ​​the button.

[0010] The present invention further provides an explosion-proof protective shell with a accommodating space for accommodating an electronic device, the electronic device having a button. The explosion-proof protective shell includes: a first shell, a second shell, and a push button. The first shell is circumferentially provided with a first connecting portion; the second shell is circumferentially provided with a second connecting portion for engaging with the first connecting portion. The second connecting portion has a through hole with opposing first and second opening ends, the second opening end being located on the outer wall surface of the second shell. The second shell further includes a button groove corresponding to the button, and the first opening end is connected to the button groove. The push button has a push portion and a push rod connected to the push portion. The push portion is disposed in the button groove and is used to push the button. The push rod is disposed in the through hole, and one end of the push rod away from the push portion is partially exposed at the second opening end. The push button includes a non-metallic washer disposed between the push portion and the button, allowing the push portion to push the button through the non-metallic washer.

[0011] The beneficial effects of this invention are that the explosion-proof protective shell, through the design of a special push-button, a bent explosion-proof path, and the configuration or filling of a composite filler, effectively reduces or blocks the explosive gases and flames generated during the explosion of an electronic device, thus achieving an explosion buffering effect. On the other hand, in addition to a rotating grip for easy rotation by the user, the explosion-proof bolt also has an anti-opening gate located on one side of the threaded through hole and corresponding to the explosion-proof bolt. The anti-opening gate not only prevents the explosion-proof bolt from being opened or loosened unintentionally, but also allows the user to visually confirm whether the explosion-proof bolt is in a locked state, ensuring the safety and stability of the electronic device installed inside the explosion-proof protective shell. Attached Figure Description

[0012] Figure 1A is a perspective view of the explosion-proof protective shell provided by the present invention;

[0013] Figure 1B is an exploded perspective view of the explosion-proof protective shell provided by the present invention;

[0014] Figure 2A is a cross-sectional view of the first embodiment along line segment A-A' in Figure 1A;

[0015] Figure 2B is a cross-sectional view of the push button and button groove provided by the present invention;

[0016] Figure 3 is a schematic diagram of the operation of the push button in Figure 2B;

[0017] Figure 4A is a cross-sectional view of the second embodiment along line segment A-A' in Figure 1A;

[0018] Figure 4B is a cross-sectional view of the third embodiment along line segment A-A' in Figure 1A;

[0019] Figure 5A is a partial perspective exploded view of the explosion-proof protective shell provided by the present invention from one angle;

[0020] Figure 5B is a partial perspective exploded view of the explosion-proof bolt and anti-opening gate plate provided by the present invention from another perspective;

[0021] Figures 6A and 6B are schematic diagrams of the operation of the anti-opening gate plate provided by the present invention;

[0022] Figure 7 is a schematic diagram of the explosion-proof protective shell filling composite filler provided by the present invention;

[0023] Figures 8A and 9A are partial exploded perspective views of the explosion-proof protective shell provided by the present invention;

[0024] Figure 8B is a side perspective view of the first embodiment of the push-off key provided by the present invention;

[0025] Figure 8C is a schematic projection of the first embodiment of the push-back key moving in its direction of movement;

[0026] Figure 8D is a schematic projection of the second embodiment of the push-back key moving in its direction of movement; and

[0027] Figure 9B is a side perspective view of a second embodiment of the push-off key provided by the present invention. Detailed Implementation

[0028] First, please refer to Figures 1A and 1B. The present invention provides an explosion-proof protective shell 1, which can be used to house an electronic device (not shown in the figures). The electronic device may be a tablet computer or a smartphone, having a touch panel, a back surface opposite the touch panel, and a side surface between the touch panel and the back surface. The side surface typically has one or more buttons and at least one electrical interface, which may be, but is not limited to, USB-A, Micro-USB, Lightning, or USB-C.

[0029] The explosion-proof protective shell 1 includes: a first shell 10, a second shell 20, a transparent plate 30, an anti-collision clamping mechanism 40, a push button 50, an elastomer 60, an explosion-proof bolt 70, an anti-opening gate plate 80, a hanging rope 90, and locking fasteners F1 and F2.

[0030] The first housing 10 includes a first connecting portion 11 and a frame opening 12. The first connecting portion 11 is disposed on the side of the first housing 10 facing the second housing 20 and is disposed around the frame opening 12. In this embodiment, the inner wall surface of the first connecting portion 11 has a circumferential wall portion 111. The transparent plate 30 can be fixed to the frame opening 12 by means of snapping, fitting or sticking. Thus, when the electronic device is installed in the explosion-proof protective housing 1, the user can operate the electronic device through the transparent plate 30.

[0031] The second housing 20 includes a second connecting portion 21, one or more button slots 22, one or more through holes 23, a threaded through hole 24, and a frame recess 25. The second connecting portion 21 is disposed on the side of the second housing 20 facing the first housing 10 and is disposed around the frame recess 25. In this embodiment, the inner wall surface of the second connecting portion 21 has a circumferential block portion 211. The button slot 22 is disposed in the frame recess 25 and adjacent to the second connecting portion 21, and corresponds to one or more buttons on the side of the electronic device. In this embodiment, the button slot 22 is formed by multiple partition structures 221. In other possible embodiments, a hollowed-out notch can also be formed on the side wall surface of the second connecting portion 21 adjacent to the frame recess 25 as the button slot 22. The through hole 23 is disposed in the second connecting portion 21 and penetrates the second connecting portion 21, and the other opening end of the through hole 23 relative to the opening end of the outer wall surface of the second housing 20 corresponds to the button slot 22.

[0032] The threaded through-hole 24 also penetrates the second joint 21 and corresponds to the electrical interface on the side of the electronic device. In this embodiment, the inner surface of the threaded through-hole 24 has an internal thread structure 241.

[0033] The first connecting portion 11 of the first housing 10 can be connected to the second connecting portion 21 of the second housing 20. In this embodiment, multiple fasteners F1 can be screwed into multiple locking holes on the first connecting portion 11 and the second connecting portion 21 to connect the first housing 10 and the second housing 20. The anti-collision clamping mechanism 40 can simultaneously clamp and further fix the first housing 10 and the second housing 20. In this embodiment, multiple fasteners F1 can also be used to lock the anti-collision clamping mechanism 40 to the four corners of the first housing 10 and the second housing 20.

[0034] The push button 50 has a push portion 51 and a push rod 52 connected to the push portion 51. The push portion 51 is disposed in the button groove 22, and the push rod 52 is disposed in the through hole 23. An elastic body 60 is disposed between the push portion 51 of the push button 50 and the inner wall surface of the button groove 22 with the through hole 23. In this embodiment, the elastic body 60 has an opening 61 and can be sleeved on the push rod 52 through the opening 61.

[0035] The explosion-proof bolt 70 can be screwed into the threaded through hole 24. The explosion-proof bolt 70 has a rotating shaft 71 and a rotating gripping part 72, and the rotating shaft 71 is located at the axis of the rotating gripping part 72.

[0036] The anti-opening gate plate 80 is disposed on one side of the threaded through hole 24, and includes a first end 81, a second end 82, and a locking recess 83. The first end 81 and the second end 82 are opposite each other, and the first end 81 is pivotally connected to the second joint portion 21 of the second housing 20, allowing the anti-opening gate plate 80 to rotate relative to the second joint portion 21. In this embodiment, a locking fastener F2 is inserted through the first end 81, pivotally connecting the first end 81 to the second joint portion 21. The locking recess 83 is disposed on the side of the second end 82 facing the explosion-proof bolt 70 and corresponds to the rotation axis 71 of the explosion-proof bolt 70.

[0037] The lanyard 90 has a first locking end 91 and a second locking end 92. The first locking end 91 is pivotally connected to the rotating grip portion 72 of the explosion-proof bolt 70, preventing the lanyard 90 from coiling or tangling when the explosion-proof bolt 70 rotates. The second locking end 92 is fixed to the second connecting portion 21 of the second housing 20. In some possible embodiments, the second locking end 92 may also be fixed at any position on the first housing 10 or the second housing 20, and is not limited to the embodiments proposed in this example.

[0038] Please refer to Figures 1A, 1B, 2A, and 2B. For ease of explanation, the X-axis is defined as the first direction and the Y-axis as the second direction in the figures, and the first direction and the second direction are perpendicular to each other. The wall portion 111 provided on the inner wall surface of the first joint 11 includes wall portions 111a (as shown in Figure 2A) and 111b (as shown in Figure 2B), and wall portions 111a and 111b respectively have first shape surfaces SF11 and SF12; the block portion 211 provided on the inner wall surface of the second joint 21 has second shape surfaces SF21 (as shown in Figure 2A) and SF22 (as shown in Figure 2B) corresponding to the first shape surfaces SF11 and SF12.

[0039] When the first connecting portion 11 of the first housing 10 and the second connecting portion 21 of the second housing 20 are engaged with each other, the frame grooves 25 of the first housing 10 and the second housing 20 can define and form an accommodating space CS, which can be used to accommodate an electronic device (not shown in the figure). Although this embodiment only proposes an implementation in which the first housing 10 has a frame opening 12 and the second housing 20 has a frame groove 25, in actual applications, the frame opening can also be provided on the second housing 20 and the frame groove can be provided on the first housing 10, or opposing frame grooves can be provided on the first housing 10 and the second housing 20 respectively to define the accommodating space CS, and is not limited to the implementation proposed in this embodiment.

[0040] On the other hand, when the first connecting part 11 and the second connecting part 21 are joined together, the wall parts 111a and 111b will be spliced ​​with the block part 211, forming a bent explosion-proof path ER1 (as shown in Figure 2A) and ER2 (as shown in Figure 2B) between the first shaped surfaces SF11 and SF12 and the second shaped surfaces SF21 and SF22. Thus, if an electronic device installed in the accommodating space CS causes a spark or explosion due to some unforeseen reason, when the explosive gas or flame flows into the explosion-proof path ER1 and ER2, the bent explosion-proof path ER1 and ER2 can reduce the pressure generated by the explosive gas and block the leakage of the flame, thereby achieving an explosion buffering effect. In this embodiment, the cross-sectional dimension H1 of the block part 211 along the first direction is between 6 mm and 16 mm.

[0041] Please refer to Figure 2B. The perforation 23 penetrates the second joint portion 21 of the second housing 20, and the perforation 23 has a first opening end 231 and a second opening end 232. The first opening end 231 is connected to the key slot 22, while the second opening end 232 is located on the outer wall surface of the second housing 20. In this embodiment, the straight-line distance H2 between the first opening end 231 and the second opening end 232 along the first direction is also between 6mm and 16mm. The pushing part 51 of the push button 50 is disposed in the key slot 22 and can slide back and forth in the key slot 22 along the first direction. The push rod 52 is disposed in the perforation 23, and the end of the push rod 52 away from the pushing part 51 is partially exposed in the second opening end 232 for the user to press. In this way, the user can press the push rod 52 exposed in the second opening end 232 to drive the pushing part 51 to slide along the first direction to press the button provided on the side of the electronic device.

[0042] Furthermore, the elastomer 60 is disposed between the pushing portion 51 of the push button 50 and the inner wall surface of the button groove 22 with the first opening end 231. In this embodiment, the elastomer 60 is provided with an opening 61, and can be tightly fitted onto the push rod 52 through the opening 61. This design can prevent external moisture, water, or dust from entering the button groove 22 and the accommodating space CS along the through hole 23. On the other hand, the elastomer 60 will form at least one gap G between itself and the inner wall surfaces of the first housing 10 and the second housing 20. In this embodiment, one side of the elastomer 60 along the second direction forms a gap G with the wall portion 111b of the first housing 10; the other side of the elastomer 60 along the second direction forms another gap G with the button groove 22 of the second housing 20, and the gap G formed between the elastomer 60 and the first housing 10 and the second housing 20 will be connected to the explosion-proof path ER2.

[0043] Please refer to Figure 3. When the elastomer 60 is compressed and deformed, for example, when an electronic device disposed in the accommodating space CS causes a spark or explosion due to some unforeseen reason, firstly, the pushing part 51 will be pushed by the pressure of the explosive gas and squeeze the elastomer 60 in the first direction, causing the elastomer 60 to deform and expand in the second direction. In this way, the deformation of the elastomer 60 can fill the gap G between the elastomer 60 and the first housing 10 and the second housing 20, and can quickly block or prevent the leakage of explosive gas or flame from the gap G. Then, if some explosive gas or flame still leaks from the gap G, the leaked explosive gas or flame may flow into the explosion-proof path ER2 and the perforation 23. The bent explosion-proof path ER2 can further reduce the pressure generated by the leaked explosive gas and block the leaked flame, thereby achieving the effect of explosion buffering. On the other hand, since the perforation 23 has a long straight distance H2 (as shown in Figure 2B), it also helps the explosive gas or flame to dissipate. In this embodiment, the compressibility of the elastomer is between 0.2 mm and 0.5 mm.

[0044] Please refer to Figures 4A and 4B. In Figure 4A, the structure and function of each component are the same as in Figure 2A, and will not be repeated here. The only difference is that the wall portion 111a of the first joint 11 has a concave, double-layered stepped first shaped surface SF11a; while the block portion 211 of the second joint 21 has a convex, double-layered stepped second shaped surface SF21a. When the wall portion 111a and the block portion 211 are spliced ​​together, an explosion-proof path ER1a with a double-layered stepped cross-section can be formed between the first shaped surface SF11a and the second shaped surface SF21a.

[0045] In Figure 4B, the structure and function of each component are the same as in Figure 4A, and will not be described again here. The only difference is that the wall portion 111a of the first joint 11 has a concave serrated first shaped surface SF11b; while the block portion 211 of the second joint 21 has a convex serrated second shaped surface SF21b. When the wall portion 111a and the block portion 211 are spliced ​​together, a serrated explosion-proof path ER1b can be formed between the first shaped surface SF11b and the second shaped surface SF21b. Although the above embodiment only proposes an implementation of explosion-proof paths ER1a and ER1b with stepped or serrated cross-sections, in actual applications, the explosion-proof path can also be formed in a wavy or other arbitrary shape with multiple bends in the cross-sectional direction according to the shape changes of the first and second shaped surfaces, and is not limited to the implementation proposed in this invention.

[0046] Please refer to Figures 5A and 5B. The rotating shaft 71 of the explosion-proof bolt 70 includes a first rotating shaft portion 711 and a second rotating shaft portion 712 connected together. The first rotating shaft portion 711 has an external thread structure 7111 corresponding to the internal thread structure 241 of the threaded through hole 24, so that the explosion-proof bolt 70 can be screwed into the threaded through hole 24 by means of the first rotating shaft portion 711. The second rotating shaft portion 712 is used to connect the rotating grip portion 72 and the first rotating shaft portion 711, and the diameter of the first rotating shaft portion 711 is larger than the diameter of the second rotating shaft portion 712.

[0047] In this embodiment, the rotating grip 72 also has three symmetrically arranged radial lever structures 721. Because there is a large recess between any two radial lever structures 721, even if the user is wearing heavy work gloves, they can easily apply force to move the radial lever structures 721, thereby rotating the explosion-proof bolt 70. Although this embodiment only describes an implementation where the rotating grip 72 has three symmetrically arranged radial lever structures 721, in practical applications, the number of radial lever structures 721 can be two or more, and they can be symmetrical or asymmetrical radial lever structures radiating outwards from the axis of the rotating grip 72, and are not limited to the implementation described in this embodiment.

[0048] The locking notch 83 of the anti-opening gate plate 80 is provided on the side of the second end 82 facing the explosion-proof bolt 70. The locking notch 83 corresponds to the second rotating shaft portion 712, and the inner diameter of the locking notch 83 is approximately equal to the outer diameter of the second rotating shaft portion 712. In addition, the interference between at least one of the two endpoints 831 and 832 at the opening end of the locking notch 83 and the second rotating shaft portion is between 0.1 mm and 0.5 mm. In a preferred embodiment, the interference is approximately equal to 0.2 mm.

[0049] Please refer to Figures 6A and 6B. When the first rotating shaft portion 711 is screwed into the threaded through hole 24 to the locked position, for example, when the first rotating shaft portion 711 is screwed into the threaded through hole 24 such that the radial section connecting the first rotating shaft portion 711 and the second rotating shaft portion 712 is flush with the outer wall surface of the second joint portion 21, or when the first rotating shaft portion 711 is completely submerged in the threaded through hole 24, at least one of the two endpoints 831 and 832 of the engaging notch 83 can interfere with the second rotating shaft portion 712, and can be forced in and engaged on the second rotating shaft portion 712.

[0050] Please refer to Figure 6A(ii). When the anti-opening gate plate 80 and the explosion-proof bolt 70 are engaged, the user can visually observe and confirm whether the explosion-proof bolt 70 has reached the locked position by using the engagement state of the anti-opening gate plate 80 and the second rotating shaft portion 712. Furthermore, when the anti-opening gate plate 80 and the second rotating shaft portion 712 are engaged, since the diameter of the first rotating shaft portion 711 is larger than the diameter of the second rotating shaft portion 712, the anti-opening gate plate 80 can abut against the first rotating shaft portion 711 along the axial direction of the rotating shaft 71, preventing the user from unscrewing the explosion-proof bolt 70 in the opposite direction and preventing the explosion-proof bolt 70 from loosening and falling off. This anti-opening gate plate 80 design has a dual protection mechanism, including engaging the explosion-proof bolt 70 and preventing the explosion-proof bolt 70 from unscrewing, as well as allowing the user to visually identify and confirm the locked state of the explosion-proof bolt 70.

[0051] Referring to Figure 7, to further improve the explosion-proof effect of the explosion-proof protective shell 1, a composite filler CF can be provided in the accommodating space CS (as shown in Figure 2A) of the explosion-proof protective shell 1. In this embodiment, the composite filler CF is in the shape of a plate and can be pre-placed in the frame groove 25 of the second shell 20 to arrange the composite filler CF between the back of the electronic device D and the inner surface of the second shell 20 of the explosion-proof protective shell 1. When the electronic device D is arranged in the accommodating space CS or placed in the frame groove 25, the composite filler CF will be squeezed by the electronic device D and can approximately fill the gap between the electronic device D and the accommodating space CS or the frame groove 25. Thus, since the gap between the electronic device D and the accommodating space CS (or the frame recess 25) has been largely filled by the composite filler CF, if the electronic device D causes a spark or explosion due to some unforeseen reason, the explosion energy can be reduced by the composite filler CF because the internal combustible gas space has been greatly reduced, thus buffering the explosion and further reducing the flow of explosive gas in the accommodating space CS.

[0052] In some possible implementations, the composite filler CF can be a solid elastomer or an elastomer with irregularly arranged high-density pores. The irregularly arranged high-density pores not only increase the compressibility of the composite filler CF but also help to block the flow of explosive gases. In this embodiment, the compressibility of the composite filler is between 5% and 50%, and in a preferred embodiment, it is between 25% and 35%. Furthermore, although this embodiment only presents an implementation where the composite filler CF is in the shape of a sheet, in practical applications, the composite filler CF can also be a ring-shaped elastomer, which can be arranged around the side of the electronic device D to cover the side of the electronic device D, and can also cover part of the touch panel or the back. Alternatively, the composite filler CF can be a foam filler material that cures upon contact with air. The user can fill the gap between the electronic device D and the accommodating space CS (or the frame groove 25) by spraying, without being limited to the implementation proposed in this embodiment.

[0053] Please refer to Figures 8A to 8D. In Figure 8A, the structure and function of each component of the first housing 10, button groove 22, perforation 23, anti-collision clamping mechanism 40, push button 50, and elastic body 60 are the same as in Figure 1B, and will not be described again here. The only difference is that the push part 51 of the push button 50 has a three-dimensional push protrusion 511 on the side away from the push rod 52 (as shown in Figure 8A), and the push protrusion 511 abuts against the surface of the button PB of the electronic device D (as shown in Figure 8B). The button PB is a capacitive fingerprint recognition button.

[0054] Please refer to Figure 8C. The push-abutment 511 of the push button 50 has a projected area AE1 along the actuation direction of the push button 50; while the button PB has a projected area AE2 along the actuation direction of the push button 50, and the projected area AE1 of the push-abutment 511 is smaller than the projected area AE2 of the button PB. Thus, when the push button 50 is actuated and the button PB is pressed through the push-abutment 511, the smaller projected area AE1 of the push-abutment 511 results in a smaller contact area between the push button 50 (push part 51) and the button PB. This reduces the conduction of static electricity from the push button 50 to the button PB, thereby avoiding erroneous operation of the button PB for fingerprint recognition due to static interference, and improving the convenience of use and operation of the explosion-proof protective case 1.

[0055] In this embodiment, since the pushing protrusion 511 is a vertically arranged three-dimensional protrusion structure, the projected area AE2 of the pushing protrusion 511 is perpendicular to the long side of the projected area AE2 of the button PB, and the size of the projected area AE1 of the pushing protrusion 511 is between 5% and 30% of the projected area AE2 of the button PB. In a preferred embodiment, the size of the projected area AE1 of the pushing protrusion 511 is 10% of the projected area AE2 of the button PB.

[0056] Please refer to Figure 8D. The projected area AE1 of the push-abutment bump 511 is also smaller than the projected area AE2 of the button PB. The difference between Figure 8D and Figure 8C is that, because the push-abutment bump 511 is a horizontally arranged three-dimensional protrusion structure, the projected area AE2 of the push-abutment bump 511 is parallel to the long side of the projected area AE2 of the button PB. In the above embodiments, although only the embodiment of the push-abutment bump 511 as a single horizontal or vertical three-dimensional cuboid structure is proposed, in actual applications, the push-abutment bump 511 can be a three-dimensional structure of any shape, or it can be composed of multiple dispersed three-dimensional protrusion structures, and is not limited to the embodiments proposed in this invention. Regardless of whether the push-abutment bump has an arbitrary shape or is composed of multiple dispersed protrusion structures, the total area of ​​its projected area is between 5% and 30% of the projected area AE2 of the button PB.

[0057] Please refer to Figures 9A and 9B. In Figure 9A, the structure and function of each component of the first housing 10, button groove 22, perforation 23, anti-collision clamping mechanism 40, push button 50, and elastic body 60 are the same as in Figure 8A, and will not be described again here. The only difference is that the push button 50 further includes a non-metallic pad 53. The non-metallic pad 53 is disposed between the push part 51 and the button PB, and has a thickness t, wherein the button PB is also a capacitive fingerprint recognition button.

[0058] In Figure 9B, when the push button 50 is activated, the push part 51 can push the button PB through the non-metallic pad 53. Since the non-metallic pad 53 has a thickness t, the static electricity of the push button 50 itself can be reduced to conduct to the button PB, thereby avoiding the button PB from being misactivated for fingerprint recognition due to static interference, and thus improving the convenience of use and operation of the explosion-proof protective shell 1.

[0059] In this embodiment, the non-metallic gasket 53 may be made of thermosetting rubber, thermoplastic rubber, or rubber sheet, and may cover all or part of the button PB, with a thickness t ranging from 0.5 mm to 10 mm. In a preferred embodiment, the thickness t is 1 mm.

[0060] Compared to conventional technology, the explosion-proof protective shell 1 provided by the present invention can effectively reduce or block the explosive gases and flames generated when electronic devices explode by means of the special push-button 50, the design of the bent explosion-proof paths ER1 and ER2, and the configuration or filling of the composite filler CF, thereby achieving the effect of explosion buffering.

[0061] On the other hand, in addition to the rotating grip 72 for easy rotation by the user, the explosion-proof bolt 70 also has an anti-opening gate 80 located on one side of the threaded through hole 24 and corresponding to the explosion-proof bolt 70. The anti-opening gate 80 not only prevents the explosion-proof bolt 70 from being opened or loosened unintentionally, but also allows the user to visually confirm whether the explosion-proof bolt 70 is in a locked state, ensuring the safety and stability of the electronic devices installed within the explosion-proof protective housing 1. Therefore, this invention is a creation of great industrial value.

[0062] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Furthermore, the above description should be clear and implementable to those skilled in the art. Therefore, any equivalent changes or modifications made without departing from the spirit disclosed in the present invention should be included within the scope of the patent application.

Claims

1. An explosion-proof protective housing having an accommodating space for accommodating electronic devices, characterized in that it comprises: The first housing has a first connecting portion circumferentially provided; A second housing is circumferentially provided with a second connecting portion for engaging with the first connecting portion. The second connecting portion has at least one through-hole, the at least one through-hole having opposing first and second opening ends, the second opening end being located on the outer wall surface of the second housing. The second housing further includes: At least one button slot, wherein the first open end is connected to the at least one button slot; and A push button has a push part and a push rod connected to the push part. The push part is disposed in the at least one key groove, the push rod is disposed in the through hole, and one end of the push rod away from the push part is partially exposed at the second opening end. Wherein, the straight-line distance between the first opening end and the second opening end along the first direction is equal to the cross-sectional dimension of the second joint portion along the first direction.

2. The explosion protection enclosure of claim 1, wherein, The straight-line distance is between 6mm and 16mm.

3. The explosion protection enclosure of claim 1, wherein, It includes at least one elastic body disposed between the pushing portion and the inner wall surface of the at least one button groove having the first open end.

4. The explosion-proof protective shell as described in claim 3, characterized in that, The at least one elastomer forms at least one gap with the inner wall of the first housing and the second housing. When the at least one elastomer is compressed and deformed, the at least one elastomer fills the at least one gap through deformation. The compressibility of the at least one elastomer is between 0.2 mm and 0.5 mm.

5. The explosion-proof protective shell as described in claim 1, characterized in that, It further includes a composite filler disposed in the accommodating space to fill the gap between the electronic device and the accommodating space, the compressibility of the composite filler being between 5% and 50%.

6. The explosion-proof protective shell as described in claim 1, characterized in that, The first housing or the second housing has a transparent panel through which the user can operate the electronic device.

7. An explosion-proof protective housing having a accommodating space for accommodating electronic devices, characterized in that it comprises: The first housing has a first connecting portion circumferentially provided; A second housing is provided with a second connecting portion around its perimeter, the second connecting portion being used to engage with the first connecting portion, the second housing comprising: A threaded through-hole penetrates the second joint. An explosion-proof bolt has a rotating grip portion and a rotating shaft disposed at the axis of the rotating grip portion, the rotating shaft comprising: The first rotating shaft portion can be screwed into the threaded through hole; and A second rotating shaft portion, connecting the rotating grip portion and the first rotating shaft portion; and an anti-opening gate plate, disposed on one side of the threaded through hole, comprising: The first end is pivotally connected to the second connecting portion, allowing the anti-opening gate plate to rotate relative to the second connecting portion; and The second end has a locking recess on the side facing the explosion-proof bolt, and the locking recess corresponds to the second rotating shaft portion; When the first rotating shaft is screwed into the threaded through hole to the locking position, the engaging notch interferes with the second rotating shaft and can be forced in and engaged with the second rotating shaft.

8. The explosion-proof protective shell as described in claim 7, characterized in that, The diameter of the first rotating shaft is larger than the diameter of the second rotating shaft.

9. The explosion-proof protective shell as described in claim 7, characterized in that, The interference between at least one of the two endpoints of the opening of the engagement notch and the second rotating shaft is between 0.1 mm and 0.5 mm.

10. The explosion-proof protective shell as described in claim 7, characterized in that, The rotating grip has at least two radial lever structures radiating outward from the axis.

11. The explosion-proof protective shell as described in claim 7, characterized in that, It further includes a lanyard having a first locking end and a second locking end opposite to each other, the first locking end being pivotally connected to the rotating grip and the second locking end being fixed to the first housing or the second housing.

12. An explosion-proof protective housing having a receiving space for accommodating electronic devices, characterized in that it comprises: A first housing has a first connecting portion circumferentially arranged, and a wall portion circumferentially arranged on the inner wall surface of the first connecting portion, the wall portion having a first shaped surface; as well as The second housing has a second connecting portion circumferentially provided, which is used to connect with the first connecting portion. The inner wall surface of the second connecting portion has a block-shaped portion circumferentially provided, and the block-shaped portion has a second shaped surface corresponding to the first shaped surface. When the first joint and the second joint are joined together, a bent explosion-proof path is formed between the first shaped surface and the second shaped surface.

13. The explosion-proof protective shell as described in claim 12, characterized in that, The shape of the explosion-proof path in the cross-sectional direction can be: stepped, sawtooth, or wavy.

14. The explosion-proof protective shell as described in claim 12, characterized in that, The cross-sectional dimensions of the blocky body along the first direction are between 6 mm and 16 mm.

15. An explosion-proof protective housing having a receiving space for receiving an electronic device, said electronic device having at least one button, characterized in that it comprises: The first housing has a first joint portion circumferentially provided; A second housing is circumferentially provided with a second connecting portion for engaging with the first connecting portion. The second connecting portion has at least one through-hole, the at least one through-hole having a first open end and a second open end opposite to each other. The second open end is located on the outer wall surface of the second housing. The second housing further includes: At least one button slot, corresponding to the at least one button, and the first open end is connected to the at least one button slot; and A push button has a push part and a push rod connected to the push part. The push part is disposed in the at least one button slot and is used to push the at least one button. The push rod is disposed in the through hole, and one end of the push rod away from the push part is partially exposed at the second opening end. The push-abutment has at least one push-abutment, which abuts against the surface of the at least one button, and the projected area of ​​the at least one push-abutment is smaller than the projected area of ​​the at least one button.

16. The explosion-proof protective shell as described in claim 15, characterized in that, The projected area of ​​the at least one push-abutment is between 5% and 30% of the projected area of ​​the at least one button.

17. An explosion-proof protective housing having a receiving space for receiving an electronic device, the electronic device having at least one button, the explosion-proof protective housing comprising: The first housing has a first connecting portion circumferentially provided; A second housing is circumferentially provided with a second connecting portion for engaging with the first connecting portion. The second connecting portion has at least one through-hole, the at least one through-hole having opposing first and second opening ends, the second opening end being located on the outer wall surface of the second housing. The second housing further includes: At least one button slot, corresponding to the at least one button, and the first open end is connected to the at least one button slot; and A push button has a push part and a push rod connected to the push part. The push part is disposed in the at least one button slot and is used to push the at least one button. The push rod is disposed in the through hole, and one end of the push rod away from the push part is partially exposed at the second opening end. The push button includes a non-metallic washer, which is disposed between the push part and the at least one button, so that the push part can push the at least one button through the non-metallic washer.

18. The explosion-proof protective shell as described in claim 17, characterized in that, The non-metallic gasket has a thickness between 0.5 mm and 10 mm.

Images