Protective device

Abstract

The invention discloses a protective device, which relates to the technical field of protection and comprises a shell, an end cover, a plurality of first buffer assemblies, a plurality of second buffer assemblies and a plurality of third buffer assemblies. The shell is provided with a cavity used for loading the first device, a heat dissipation gap is formed between the first device and the inner wall of the cavity, and the heat dissipation gap wraps the first device. The end cover is arranged on the shell and used for sealing the cavity, heat dissipation holes are formed in the end cover and the shell, and the heat dissipation holes are communicated with the heat dissipation gap. The multiple first buffer assemblies are arranged in the circumferential direction of the cavity at intervals and abut against the first device. The second buffer assembly is arranged on the side wall, facing the cavity, of the end cover and abuts against the first device. The third buffer assembly is arranged on the inner wall, facing the end cover, of the cavity and abuts against the first device. According to the invention, the protection device has good impact resistance and heat dissipation capability.

Description

Technical Field

[0001] The present application relates to the field of protection technology, and in particular to a protection device. Background Art

[0002] A switch is a common network connectivity device that provides independent electrical signal paths between any two nodes in a network, effectively improving data transmission efficiency. Its structure primarily consists of a metal casing and internal electronic components. It has multiple ports, each supporting bridging functionality, and can be used to connect devices such as local area networks, servers, or workstations. In practical applications, switches are typically mounted horizontally in a rack or on a desktop and are a key physical component in network infrastructure.

[0003] Currently, switches on the market often come with protective casings. These often feature a cushioned interior that tightly wraps around the switch body for physical protection. These cases are designed to mitigate the impact of external shocks and reduce cosmetic damage from drops or collisions. Some cases also feature mounting clips or screws to enhance overall structural stability.

[0004] However, in actual use, the existing protective casing's internal protective padding clings tightly to the switch's surface, severely hindering the airflow necessary for proper heat dissipation. This prevents heat generated during operation from being effectively dissipated, potentially leading to overheating failures in internal components and impacting the device's lifespan and operational stability. Furthermore, while the protective padding provides some cushioning, it can still be subject to significant external impacts, resulting in compression, dents, or even structural damage to the switch casing itself due to insufficient rigidity or localized deformation, disrupting normal operation. Summary of the Invention

[0005] The present application provides a switch protection device to solve the problem that the switch housing structure has both good impact resistance and heat dissipation capabilities.

[0006] The present application provides a protective device, comprising: The housing is provided with a chamber for loading a first device, a heat dissipation gap is defined between the first device and an inner wall of the chamber, and the heat dissipation gap covers the first device; an end cover, disposed on the housing and used to seal the chamber, wherein both the end cover and the housing are provided with heat dissipation holes, and the heat dissipation holes are communicated with the heat dissipation gap; a plurality of first buffer assemblies, the plurality of first buffer assemblies being spaced apart along the circumference of the chamber, the first buffer assemblies being against the first device; a second buffer assembly, disposed on a side wall of the end cover facing the chamber and abutting against the first device; The third buffer assembly is arranged on the inner wall of the chamber facing the end cover and abuts against the first device.

[0007] Beneficial effect: By providing a shell that forms an enclosed heat dissipation gap with the first device and an end cover with heat dissipation holes, the efficient heat dissipation capability of the equipment under closed protection is ensured; at the same time, with the help of multiple first buffer components arranged at intervals along the circumference, and the synergistic effect of the second buffer component and the third buffer component respectively arranged on the end cover and the inner wall of the chamber, the first device is provided with multi-directional, three-dimensional buffer protection, so that when it is subjected to external impact, it can effectively absorb and disperse the impact energy through adaptive displacement in multiple directions, thereby significantly improving the impact resistance and operational reliability of the equipment while taking into account the heat dissipation needs.

[0008] In an optional embodiment, the method further includes: A support plate is arranged in the chamber, and a through hole is provided on the support plate; A panel is provided on a side surface of the support plate, wherein the panel and the support plate form a groove, wherein the first device is provided in the groove, and the first device abuts against the support plate; A first gap is left between the outer peripheral surface of the enclosure and the inner side wall of the chamber, a second gap is left between the support plate and the inner wall of the chamber facing the end cover, and a third gap is left between the side wall of the enclosure facing the end cover and the end cover. The first gap, the second gap and the third gap form the heat dissipation gap.

[0009] Beneficial effect: A groove for carrying the first device is formed by combining the support plate and the enclosure, and a first gap is set between the enclosure and the inner wall of the chamber, a second gap is set between the support plate and the inner wall of the chamber, and a third gap is set between the enclosure and the end cover, which together constitute a coherent heat dissipation duct surrounding the first device, greatly optimizing the heat dissipation airflow circulation efficiency; this structure creates ample buffering movement space for the first device while ensuring that the first device is firmly accommodated, so that the heat dissipation and impact resistance are simultaneously enhanced.

[0010] In an optional embodiment, the first buffer component includes: a buffer plate disposed in the groove, the buffer plate abutting against a circumferential surface of the first device, and the buffer plate slidingly engaging with the supporting plate; A limiting plate, one end of which is connected to the buffer plate, a limiting hole is provided on the enclosure plate, and the other end of the limiting plate passes through the limiting hole and is slidably engaged with the inner wall of the limiting hole; The first elastic member is located between the buffer plate and the inner circumferential surface of the enclosure, one end of the first elastic member is connected to the enclosure, and the other end of the first elastic member is connected to the buffer plate. The first elastic member has a tendency to drive the buffer plate close to the first device.

[0011] Beneficial Effects: The first buffer assembly achieves flexible clamping and horizontal buffering of the first device by abutting the buffer plate against the perimeter of the first device and providing continuous compressive force through the first elastic member. The sliding fit of the limit plate and the upper limit hole on the enclosure effectively limits the displacement of the buffer plate, preventing excessive displacement of the first device during the buffering process. This provides lateral impact protection while avoiding the risk of internal cables being pulled off due to excessive displacement.

[0012] In an optional embodiment, the limiting plate is configured as an arc-shaped structure, and a plurality of the limiting plates are respectively configured in one-to-one correspondence with a plurality of edges of the first device, and an inner arc surface of the limiting plate abuts against the edge of the first device.

[0013] Beneficial effects: The limit plate is set as an arc-shaped structure that abuts against the edge of the first device, so that the buffering force can be evenly applied to the corners of the equipment, which are usually stress concentration points in the mechanical structure; this design not only improves the effectiveness and targeting of the buffering, strengthens the protection of key areas of the equipment, but also improves the stability of clamping through surface contact.

[0014] In an optional embodiment, a plurality of second buffer components are provided and arranged in an array, and the second buffer components include: a first outer tube, one end of which is connected to the end cap; a first inner rod, one end of which is located in the lumen of the other end of the first outer tube and slidably engaged with the inner wall of the first outer tube, and the other end of the first inner rod abuts against a surface of the first device facing the end cap; The second elastic member is disposed in the first outer tube, and has a tendency to drive the first inner rod away from the first outer tube.

[0015] Beneficial effect: The second buffer components arranged in multiple arrays continuously abut the top of the first device through the first inner rod under the action of the second elastic member, providing it with uniform and reliable vertical downward buffer protection; it can effectively absorb the impact force from above the equipment, prevent the first device from having a hard collision with the end cover, and complement with the buffer components in other directions to build a complete three-dimensional protection system.

[0016] In an optional embodiment, the third buffer assembly is provided in plurality and arranged in an array, and the third buffer assembly includes: a second outer tube, comprising a first end and a second end opposite to each other, the first end of the second outer tube being connected to an inner wall of the chamber facing the end cover, and the second end of the second outer tube being connected to a side of the support plate away from the end cover; a second inner rod, one end of which is located in the lumen of the second end of the second outer tube and slidably engaged with the inner wall of the second outer tube; a passage is provided on the support plate; the other end of the second inner rod passes through the passage and abuts against a surface of the first device away from the end cap; The third elastic member is disposed in the second outer tube, and has a tendency to drive the second inner rod away from the second outer tube.

[0017] Beneficial Effect: Multiple third buffer assemblies arranged in an array, fixedly connected to the support plate and chamber bottom wall via the second outer tube, and supported by the second inner rods on the bottom of the first device by the third elastic member, provide a vertical upward buffer from below. The channel design allows the second inner rods to pass through the support plate to directly support the device, ensuring direct transmission of support force, effectively responding to impacts from below and preventing hard contact between the device and the housing.

[0018] In an optional embodiment, the method further includes: a bracket, wherein two opposite sides of the circumference of the second outer tube are respectively connected to the bracket; a locking rod, slidingly engaged with the bracket along the radial direction of the second outer tube, the brackets are respectively provided with the locking rod, a locking groove is provided on the circumference of the second inner rod, the locking rod passes through the second outer tube and is adapted to the locking groove; A fourth elastic member is arranged between the locking rod and the bracket, one end of the fourth elastic member is connected to the locking rod, and the other end of the fourth elastic member is connected to the bracket, and the fourth elastic member has a tendency to drive the locking rod to extend into the locking groove.

[0019] Beneficial effect: The locking rod automatically embeds into the locking groove on the circumference of the second inner rod under the action of the fourth elastic member, so that the second inner rod can be locked in a position flush with the top surface of the support plate, thereby eliminating the up and down shaking caused by the third buffer component during normal operation of the equipment, thereby ensuring its working stability; this locking mechanism has a simple structure and reliable operation, and is only unlocked when buffering is required, realizing intelligent switching between stable operation and dynamic protection.

[0020] In an optional embodiment, the method further includes: Unlocking plates: In the plurality of third buffer assemblies, the unlocking plates are respectively provided on two opposite sides of the second outer tubes in the same row; the locking rod is provided with a connecting plate; the bracket is provided with a strip hole; the connecting plate passes through the strip hole; the position of the connecting plate is adjustable within the strip hole; the unlocking plate abuts against a side of the connecting plate facing the second outer tube; a driving assembly connected to the unlocking plate and adapted to drive the unlocking plate to slide radially along the second outer tube so that the locking rod is disengaged from the locking groove; Wherein, when the locking rod is located in the locking groove, the end of the second inner rod is flush with a side of the supporting plate facing the end cover.

[0021] Beneficial Effect: By providing an unlocking plate that abuts the connecting plates on all locking rods and using a drive assembly to control the radial movement of the unlocking plate, all locking rods can be simultaneously driven out of the locking slots, achieving rapid and uniform unlocking of the third buffer assembly. The combination of the strip-shaped hole and the adjustable connecting plate allows for fine-tuning of the initial position of the locking rods, ensuring precise and consistent unlocking, allowing the first device to instantly enter a fully floating buffer state when subjected to impact.

[0022] In an optional embodiment, the drive assembly includes: a bidirectional screw, rotatable along its circumferential direction, comprising a first end and a second end opposite to each other; Slide blocks, each of which is connected to the other end of the bidirectional screw by a thread, are fixed in the circumferential direction and slide along the axial direction of the bidirectional screw, and are connected to the unlocking plate; The driving member is connected to the middle part of the bidirectional screw through a transmission member and is suitable for driving the bidirectional screw to rotate.

[0023] Beneficial effects: The driving assembly uses a bidirectional screw with two oppositely moving sliders to drive the unlocking plate. It has a compact structure and strong driving force, which can ensure that the unlocking plate slides smoothly and synchronously. The driving member drives the bidirectional screw through the transmission member, providing a stable and reliable power source, realizing precise control and rapid response of the unlocking process.

[0024] In an optional embodiment, the method further includes: a support platform connected to an inner wall of the chamber facing the end cover; The mounting frame is connected to the support platform, the driving member is arranged on the mounting frame, the sliding block is slidably matched with the mounting frame, and the bidirectional screw is connected to the mounting frame through a rotating seat.

[0025] Beneficial effects: The support platform and the mounting frame provide a stable installation foundation for the drive assembly, ensuring the smooth and accurate operation of moving parts such as the bidirectional screw and the slider; the sliding fit between the slider and the mounting frame and the connection of the bidirectional screw through the rotating seat effectively limit vibration and displacement, ensuring that the unlocking force can be efficiently and accurately transmitted to the locking rod.

[0026] In an optional embodiment, the method further includes: a sensing component, disposed between the enclosure and the first device, adapted to acquire pressure information applied to the first device and generate control information based on a comparison between the acquired pressure information and preset pressure information; The controller is electrically connected to the driving member and the sensor assembly, and is adapted to control the driving member to drive the bidirectional screw to rotate according to control information generated by the sensor assembly.

[0027] Beneficial effects: The pressure on the first device is monitored in real time by the sensing component, and the controller automatically triggers the drive component to work when the pressure exceeds the preset threshold, realizing the intelligence and automation of the unlocking process; the system can accurately judge the occurrence of impact events and promptly initiate all-round buffer protection, greatly improving the protection initiative and reliability of the equipment.

[0028] In an optional embodiment, the method further includes: The first locking plate includes a first plate segment and a second plate segment that are connected. The first plate segment and the second plate segment are arranged at an angle. The first plate segment and the second plate segment are respectively abutted against a side of the first device facing the end cover and an adjacent first side surface. The first plate segment is connected to a side of the first device facing the end cover through a first fastener. The second plate segment is provided with a plurality of first relief holes at intervals along its length direction. The wiring terminals of the first device are engaged with the first relief holes. The enclosure is provided with a first avoidance groove, and the shell is provided with a second avoidance groove. The first avoidance groove and the second avoidance groove correspond to each other. The wiring terminals of the first device pass through the first avoidance groove and the second avoidance groove in sequence.

[0029] Beneficial effect: Through the first locking plate and the first clearance hole thereon, and using the first fastener to lock the first locking plate, the terminal and the first device into a whole, it is ensured that the cable can move synchronously with the equipment during the buffering process, effectively preventing the port from loosening or the cable from falling off due to equipment displacement, and ensuring the continuity and stability of the data connection.

[0030] In an optional embodiment, the method further includes: The second locking plate includes a third plate segment and a fourth plate segment connected to each other, and the third plate segment and the fourth plate segment are arranged at an angle. The third plate segment and the fourth plate segment respectively abut against the side of the first device facing the end cover and the adjacent second side surface. The third plate segment is connected to the side of the first device facing the end cover through a second fastener. The fourth plate segment is provided with a second clearance hole, and the power cord of the first device is engaged with the second clearance hole. The enclosure is provided with a third avoidance groove, and the shell is provided with a fourth avoidance groove. The third avoidance groove corresponds to the fourth avoidance groove, and the power cord of the first device passes through the third avoidance groove and the fourth avoidance groove in sequence.

[0031] Beneficial effect: By using the second locking plate and the second clearance hole thereon, and using the second fastener to lock the power cord, the second locking plate and the first device, the power connection is provided with the same reliable protection, avoiding the risk of power interruption, which is an important basis for the normal operation of the entire buffer system.

[0032] In an optional embodiment, the method further includes: The buzzer is arranged on the enclosure and is electrically connected to the controller. The controller is adapted to control the buzzer to emit a buzzer according to the control information generated by the sensor component.

[0033] Beneficial effect: By adding a buzzer connected to the controller, an audible and visual alarm can be issued when the sensor component detects a major impact, promptly reminding maintenance personnel to conduct equipment inspections, playing the role of active early warning and enhancing the maintainability and safety of the system.

[0034] In an optional embodiment, the method further includes: A fixed tube connected to the outer wall of the shell, the end cover is provided with a clearance groove, and the fixed tube is slidably engaged with the clearance groove; a fixed column, slidingly engaged with the inner wall of the fixed tube; a fifth elastic member disposed in the fixing tube and connected to the fixing tube and the fixing post, respectively, the fifth elastic member having a tendency to drive the fixing post to extend into the fixing tube; a fixing plate connected to an end of the fixing column away from the fixing tube; A fixing block is connected to a side of the fixing plate facing the shell, and a fixing groove adapted to the fixing block is provided on the end cover.

[0035] Beneficial effects: The end cover fixing assembly adopts a design in which the fixing block is inserted obliquely and automatically snaps into the fixing groove under the action of the fifth elastic member and gravity, thereby realizing the rapid locking and opening of the end cover, easy operation and reliable connection, and providing convenience for the installation, maintenance and reset inspection of the equipment after buffering. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0037] Figure 1 This is a schematic structural diagram of a protective device according to an embodiment of the present application; Figure 2 This is a schematic structural diagram of the heat dissipation gap in an embodiment of the present application; Figure 3 This is a schematic structural diagram of the first device in an embodiment of the present application; Figure 4 This is a schematic structural diagram of the enclosure in an embodiment of the present application; Figure 5 This is a schematic structural diagram of the second outer tube in an embodiment of the present application; Figure 6 This is a schematic diagram of the structure of the driving component in the embodiment of the present application; Figure 7 Schematic diagram of the structure of the fixed tube in the embodiment of the present application.

[0038] Description of reference numerals: 1. Housing; 101. Chamber; 102. Second avoidance groove; 103. Fourth avoidance groove; 2. First device; 201. Terminal block; 202. Power cord; 3. Heat dissipation gap; 4. End cap; 401. Allowance groove; 402. Fixing groove; 5. Heat dissipation hole; 6. Support plate; 601. Through hole; 7. Enclosure; 701. First avoidance groove; 702. Third avoidance groove; 8. Groove; 9. Buffer plate; 10. Limiting plate; 11. First elastic member; 12. First outer tube; 13. First inner rod; 14. Second outer tube; 1401. Locking groove; 15. Second inner rod; 16. Third elastic member; 17. Bracket; 1701. Strip hole; 18. Locking rod; 19. Fourth elastic member; 20. Unlocking plate; 21. Connecting plate; 22. Bidirectional screw; 23. Slider; 24. Driving member; 25. Transmission member; 26. Support platform; 27. Mounting frame; 28. First plate section; 29. ​​Second plate section; 2901. First clearance hole; 30. First fastener; 31. Third plate section; 32. Fourth plate section; 3201. Second clearance hole; 33. Second fastener; 34. Fixing tube; 35. Fixing column; 36. Fixing plate; 37. Fixing block. DETAILED DESCRIPTION

[0039] To make the purpose, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of this application.

[0040] The following combination Figures 1 to 7 , describing the embodiments of the present application.

[0041] According to an embodiment of the present application, a protective device is provided, comprising a shell 1, an end cover 4, a plurality of first buffer assemblies, a second buffer assemblies, and a third buffer assembly. The shell 1 is provided with a chamber 101 for loading a first device 2, and a heat dissipation gap 3 is provided between the first device 2 and the inner wall of the chamber 101, and the heat dissipation gap 3 covers the first device 2. The end cover 4 is provided on the shell 1 for sealing the chamber 101, and heat dissipation holes 5 are provided on the end cover 4 and the shell 1, and the heat dissipation holes 5 are connected to the heat dissipation gap 3. A plurality of first buffer assemblies are arranged at intervals along the circumference of the chamber 101, and the first buffer assembly abuts against the first device 2. The second buffer assembly is provided on the side wall of the end cover 4 facing the chamber 101, and abuts against the first device 2. The third buffer assembly is provided on the inner wall of the chamber 101 facing the end cover 4, and abuts against the first device 2.

[0042] It should be noted that the first device 2 is a switch. The switch is suspended in the chamber 101 through the support effect of the first, second, and third buffer assemblies. The heat dissipation gap 3 between the switch, the housing 1, and the end cap 4 enhances the heat dissipation effect.

[0043] In this embodiment, by providing a shell 1 that forms an enclosed heat dissipation gap 3 with the first device 2 and an end cover 4 with heat dissipation holes 5, the efficient heat dissipation capability of the equipment under closed protection is ensured; at the same time, with the help of multiple first buffer components arranged at intervals along the circumference, and the synergistic effect of the second buffer component and the third buffer component respectively arranged on the end cover 4 and the inner wall of the chamber 101, the first device 2 is provided with multi-directional, three-dimensional buffer protection, so that when it is subjected to external impact, it can effectively absorb and disperse the impact energy through adaptive displacement in multiple directions, thereby significantly improving the impact resistance and operational reliability of the equipment while taking into account the heat dissipation requirements.

[0044] In one embodiment, a support plate 6 and a surrounding plate 7 are further included. The support plate 6 is disposed in the chamber 101 and is provided with a through hole 601. The surrounding plate 7 is disposed on the side of the support plate 6, and the surrounding plate 7 and the support plate 6 form a groove 8. The first device 2 is disposed in the groove 8, and the first device 2 abuts against the support plate 6. A first gap is left between the outer peripheral surface of the surrounding plate 7 and the inner side wall of the chamber 101, a second gap is left between the supporting plate 6 and the inner wall of the chamber 101 facing the end cover 4, and a third gap is left between the side wall of the surrounding plate 7 facing the end cover 4 and the end cover 4. The first gap, the second gap, and the third gap form a heat dissipation gap 3.

[0045] It should be noted that the through hole 601 connects the groove 8 and the heat dissipation gap 3, which also has a heat dissipation effect. At the same time, when the first device 2 is located in the groove 8, there is also a gap between the outer wall of the first device 2 and the inner wall of the groove 8, which prevents the first device 2 from fitting against the groove 8, further improving the heat dissipation effect.

[0046] Optionally, the support plate 6 and the surrounding plate 7 may be constructed as an integral structure.

[0047] In this embodiment, a groove 8 for supporting the first device 2 is formed by combining the support plate 6 and the enclosure 7, and a first gap is set between the enclosure 7 and the inner wall of the chamber 101, a second gap is set between the support plate 6 and the inner wall of the chamber 101, and a third gap is set between the enclosure 7 and the end cover 4, which together constitute a coherent heat dissipation duct surrounding the first device 2, greatly optimizing the heat dissipation airflow circulation efficiency; this structure creates ample buffering movement space for the first device 2 while ensuring that the first device 2 is firmly accommodated, so that the heat dissipation and impact resistance are simultaneously enhanced.

[0048] In one embodiment, the first buffer assembly includes a buffer plate 9, a limit plate 10 and a first elastic member 11. The buffer plate 9 is arranged in the groove 8, the buffer plate 9 is against the circumference of the first device 2, and the buffer plate 9 is slidably matched with the support plate 6. One end of the limit plate 10 is connected to the buffer plate 9, and a limit hole is provided on the enclosure 7. The other end of the limit plate 10 passes through the limit hole and slidably matches with the inner wall of the limit hole. The first elastic member 11 is located between the buffer plate 9 and the inner circumference of the enclosure 7. One end of the first elastic member 11 is connected to the enclosure 7, and the other end of the first elastic member 11 is connected to the buffer plate 9. The first elastic member 11 has a tendency to drive the buffer plate 9 close to the first device 2.

[0049] It should be noted that the first elastic member 11 is configured as a spring. A plurality of first buffer members are spaced apart along the circumference of the first device 2, so as to achieve omnidirectional buffering and shock absorption of the first device 2 on a horizontal plane.

[0050] In this embodiment, the first buffer assembly achieves flexible clamping and horizontal buffering of the first device 2 by abutting the buffer plate 9 against the circumference of the first device 2 and providing continuous compressive force through the first elastic member 11. The sliding fit of the limit plate 10 with the upper limit hole of the enclosure 7 effectively limits the displacement of the buffer plate 9, preventing excessive displacement of the first device 2 during the buffering process. This provides lateral impact protection while avoiding the risk of internal cables being pulled off due to excessive displacement.

[0051] In one embodiment, the limiting plate 10 is configured as an arc-shaped structure, and multiple limiting plates 10 are respectively configured to correspond to multiple edges of the first device 2 , and the inner arc surface of the limiting plate 10 abuts against the edge of the first device 2 .

[0052] It should be noted that the buffer plates 9 are quarter-circular in shape, with rounded corners at their top. By positioning the switch at its four corners, the buffer plates 9 secure the switch horizontally. When the switch's protective housing is impacted, the first elastic member 11 adaptively expands and contracts. Because the sliding directions of the four buffer plates 9 are perpendicular to the tangents of the switch's rounded corners, their displacement is limited. Thus, while enabling the switch's movement, the four buffer plates 9 also limit its range of movement, preventing excessive movement from pulling on cables.

[0053] In this embodiment, the limit plate 10 is set as an arc-shaped structure that abuts against the edge of the first device 2, so that the buffering force can be evenly applied to the corners of the equipment, which are usually stress concentration points in the mechanical structure; this design not only improves the effectiveness and targeting of the buffering, strengthens the protection of key areas of the equipment, but also improves the stability of clamping through surface contact.

[0054] In one embodiment, multiple second buffer assemblies are provided and arranged in an array. The second buffer assembly includes a first outer tube 12, a first inner rod 13, and a second elastic member. One end of the first outer tube 12 is connected to the end cap 4. One end of the first inner rod 13 is located within the lumen at the other end of the first outer tube 12 and slidably engages the inner wall of the first outer tube 12. The other end of the first inner rod 13 abuts against the surface of the first device 2 facing the end cap 4. The second elastic member is disposed within the first outer tube 12 and has a tendency to drive the first inner rod 13 away from the first outer tube 12.

[0055] Optionally, the second elastic member is configured as a spring.

[0056] In this embodiment, multiple second buffer assemblies arranged in an array, with the first inner rod 13 acting under the action of the second elastic member, continuously abut the top of the first device 2, providing uniform and reliable vertical downward buffering protection. This effectively absorbs impact forces from above, preventing a hard collision between the first device 2 and the end cap 4. Furthermore, it complements the buffer assemblies in other directions to form a complete three-dimensional protective system.

[0057] In one embodiment, a plurality of third buffer assemblies are provided and arranged in an array, and the third buffer assembly includes a second outer tube 14, a second inner rod 15, and a third elastic member 16. The second outer tube 14 includes a first end and a second end relative to each other. The first end of the second outer tube 14 is connected to the inner wall of the chamber 101 facing the end cover 4, and the second end of the second outer tube 14 is connected to the side of the support plate 6 away from the end cover 4. One end of the second inner rod 15 is located in the tubular cavity of the second end of the second outer tube 14 and slides with the inner wall of the second outer tube 14. A channel is provided on the support plate 6. The other end of the second inner rod 15 passes through the channel and abuts against the side of the first device 2 away from the end cover 4. The third elastic member 16 is provided in the second outer tube 14, and the third elastic member 16 has a tendency to drive the second inner rod 15 away from the second outer tube 14.

[0058] It should be noted that the top surface of the second outer tube 14 is fixedly connected to the bottom surface of the support plate 6 to fix the support plate 6. A channel is opened on the support plate 6 for the second inner rod 15 to pass through. The second inner rod 15 passes through the channel. The maximum height of the second inner rod 15 is higher than the support plate 6. When the switch is installed, the second inner rod 15 is automatically pressed down to be flush with the top surface of the support plate 6. At this time, the second inner rod 15 and the second outer tube 14 are locked by the locking rod 18, preventing the third buffer assembly from lifting the switch and causing the switch to shake up and down during normal operation, so that the switch remains stable when it is not subjected to collision force.

[0059] Optionally, the third elastic member 16 is configured as a spring.

[0060] In this embodiment, multiple third buffer assemblies arranged in an array, through the fixed connection of the second outer tube 14 to the support plate 6 and the bottom wall of the chamber 101, and the support of the second inner rod 15 on the bottom of the first device 2 by the action of the third elastic member 16, form a vertical upward buffer from below. The channel design allows the second inner rod 15 to pass through the support plate 6 to directly support the device, ensuring direct transmission of the supporting force, thereby effectively responding to impacts from the bottom and preventing hard contact between the device and the housing 1.

[0061] In one embodiment, the second outer tube 14 further includes a bracket 17, a locking rod 18, and a fourth elastic member 19. Brackets 17 are connected to two opposing sides of the circumference of the second outer tube 14. The locking rod 18 slides with the bracket 17 along the radial direction of the second outer tube 14. The bracket 17 is provided with a locking rod 18. A locking groove 1401 is provided on the circumference of the second inner rod 15, and the locking rod 18 fits into the locking groove 1401. A fourth elastic member 19 is disposed between the locking rod 18 and the bracket 17. One end of the fourth elastic member 19 is connected to the locking rod 18, and the other end of the fourth elastic member 19 is connected to the bracket 17. The fourth elastic member 19 has a tendency to drive the locking rod 18 into the locking groove 1401.

[0062] It should be noted that, under the action of the fourth elastic member 19, the locking rod 18 passes through the second outer tube 14 and into the locking groove 1401 of the second inner rod 15. A wedge-shaped surface is provided on the top surface of the end of the locking rod 18. The initial position of the second inner rod 15 is above the locking rod 18. After the second inner rod 15 is pressed downward by the switch, the second inner rod 15 pushes the locking rod 18 away via the wedge-shaped surface. When the top surface of the second inner rod 15 is flush with the top surface of the support plate 6, the locking rod 18 aligns with the locking groove 1401 and penetrates the locking groove 1401, achieving locking.

[0063] Optionally, the fourth elastic member 19 is configured as a spring.

[0064] In this embodiment, the locking rod 18 is automatically embedded in the locking groove 1401 on the circumference of the second inner rod 15 under the action of the fourth elastic member 19, so that the second inner rod 15 can be locked in a position flush with the top surface of the support plate 6, thereby eliminating the up and down shaking caused by the third buffer component during normal operation of the equipment, thereby ensuring its working stability; this locking mechanism has a simple structure and reliable operation, and is only unlocked when buffering is required, realizing intelligent switching between stable operation and dynamic protection.

[0065] In one embodiment, an unlocking plate 20 and a drive assembly are further included. In multiple third buffer assemblies, unlocking plates 20 are respectively provided on opposite sides of the second outer tube 14 located in the same row, a connecting plate 21 is provided on the locking rod 18, and a strip hole 1701 is provided on the bracket 17. The connecting plate 21 passes through the strip hole 1701 and is positionally adjustable within the strip hole 1701. The unlocking plate 20 abuts against the side of the connecting plate 21 facing the second outer tube 14. The drive assembly is connected to the unlocking plate 20 and is suitable for driving the unlocking plate 20 to slide radially along the second outer tube 14, so that the locking rod 18 disengages from the locking groove 1401. When the locking rod 18 is located in the locking groove 1401, the end of the second inner rod 15 is flush with the side of the support plate 6 facing the end cap 4.

[0066] In this embodiment, by providing an unlocking plate 20 that abuts against the connecting plates 21 on all locking rods 18 and using a drive assembly to control the radial movement of the unlocking plate 20, all locking rods 18 can be simultaneously driven out of the locking slots 1401, achieving rapid and uniform unlocking of the third buffer assembly. The cooperation between the strip-shaped holes 1701 and the adjustable connecting plate 21 allows for fine-tuning of the initial position of the locking rods 18, ensuring precise and consistent unlocking, and enabling the first device 2 to instantly enter a fully floating, cushioned state upon impact.

[0067] In one embodiment, the drive assembly includes a bidirectional screw 22, a slider 23, and a driver 24. The bidirectional screw 22 is rotatable along its circumference and includes opposing first and second ends. Sliders 23 are threadedly connected to each end of the bidirectional screw 22. Sliders 23 are fixed circumferentially and slide axially along the bidirectional screw 22. Sliders 23 are connected to the unlocking plate 20. The driver 24 is in transmission connection with the middle portion of the bidirectional screw 22 via a transmission member 25, adapted to drive the bidirectional screw 22 in rotation.

[0068] It should be noted that the first and second ends of the bidirectional screw 22 are respectively inserted into two sliders 23 and threadedly connected to the sliders 23. The sliders 23 are slidably connected to the mounting bracket 27 via dovetail blocks. The driving member 24 is configured as a micro motor and is connected to the middle part of the bidirectional screw 22 via a transmission member 25 to drive the bidirectional screw 22 to rotate. The transmission member 25 is configured as a gear set.

[0069] In this embodiment, the drive assembly uses a bidirectional screw 22 in conjunction with two sliders 23 moving in opposite directions to drive the unlocking plate 20. It has a compact structure and a large driving force, which can ensure that the unlocking plate 20 slides smoothly and synchronously. The driving member 24 drives the bidirectional screw 22 through the transmission member 25, providing a stable and reliable power source, realizing precise control and rapid response of the unlocking process.

[0070] In one embodiment, the apparatus further includes a support platform 26 and a mounting bracket 27. The support platform 26 is connected to the inner wall of the chamber 101 facing the end cover 4; the mounting bracket 27 is connected to the support platform 26, the driving member 24 is disposed on the mounting bracket 27, the slider 23 is in sliding engagement with the mounting bracket 27, and the bidirectional screw 22 is connected to the mounting bracket 27 via a rotating seat.

[0071] In this embodiment, the support platform 26 and the mounting frame 27 provide a stable installation foundation for the drive assembly, ensuring the smoothness and accuracy of the operation of moving parts such as the bidirectional screw 22 and the slider 23; the sliding fit between the slider 23 and the mounting frame 27 and the connection of the bidirectional screw 22 through the rotating seat effectively limit vibration and displacement, ensuring that the unlocking force can be efficiently and accurately transmitted to the locking rod 18.

[0072] In one embodiment, a sensing component and a controller are also included.

[0073] The sensor assembly is disposed between the enclosure 7 and the first device and is adapted to obtain pressure information applied to the first device 2 and generate control information based on a comparison between the obtained pressure information and preset pressure information. A controller is electrically connected to the driver 24 and the sensor assembly and is adapted to control the driver 24 to rotate the bidirectional screw 22 based on the control information generated by the sensor assembly.

[0074] It should be noted that the sensing component is configured as a pressure sensor, and the input end of the pressure sensor is configured as an elastic structure with a certain displacement, which offsets the enclosure 7 or the first device.

[0075] In this embodiment, the pressure applied to the first device 2 is monitored in real time by the sensing component, and the controller automatically triggers the drive member 24 to operate when the pressure exceeds a preset threshold, thereby realizing the intelligence and automation of the unlocking process; the system can accurately determine the occurrence of an impact event and promptly initiate all-round buffering protection, greatly improving the protective initiative and reliability of the equipment.

[0076] In one embodiment, a first locking plate is further included, including a first plate segment 28 and a second plate segment 29 connected to each other. The first plate segment 28 and the second plate segment 29 are arranged at an angle. The first plate segment 28 and the second plate segment 29 are respectively abutted against the side of the first device 2 facing the end cover 4 and the adjacent first side surface. The first plate segment 28 is connected to the side of the first device 2 facing the end cover 4 through a first fastener 30. The second plate segment 29 is provided with a plurality of first relief holes 2901 at intervals along its length direction. The wiring terminals 201 of the first device 2 are snapped into the first relief holes 2901. The enclosure 7 is provided with a first avoidance groove 701. The shell 1 is provided with a second avoidance groove 102. The first avoidance groove 701 and the second avoidance groove 102 correspond to each other. The wiring terminals 201 of the first device 2 pass through the first avoidance groove 701 and the second avoidance groove 102 in sequence.

[0077] In this embodiment, the first locking plate and the first clearance hole 2901 thereon are used, and the first fastener 30 is used to lock the first locking plate, the terminal block 201 and the first device 2 into a whole, ensuring that the cable can move synchronously with the device during the buffering process, effectively preventing the port from loosening or the cable from falling off due to device displacement, and ensuring the continuity and stability of the data connection.

[0078] In one embodiment, a second locking plate is further included, including a third plate segment 31 and a fourth plate segment 32 connected to each other. The third plate segment 31 and the fourth plate segment 32 are arranged at an angle. The third plate segment 31 and the fourth plate segment 32 are respectively against the side of the first device 2 facing the end cover 4 and the adjacent second side surface. The third plate segment 31 is connected to the side of the first device 2 facing the end cover 4 through a second fastener 33. The fourth plate segment 32 is provided with a second avoidance hole 3201. The power cord 202 of the first device 2 is engaged with the second avoidance hole 3201. The enclosure 7 is provided with a third avoidance groove 702. The shell 1 is provided with a fourth avoidance groove 103. The third avoidance groove 702 corresponds to the fourth avoidance groove 103. The power cord 202 of the first device 2 passes through the third avoidance groove 702 and the fourth avoidance groove 103 in sequence.

[0079] In this embodiment, the power cord 202, the second locking plate and the second clearance hole 3201 thereon are used, and the second fastener 33 is used to lock the power cord 202, the second locking plate and the first device 2, thereby providing the same reliable protection for the power connection, avoiding the risk of power interruption, and being an important basis for the normal operation of the entire buffer system.

[0080] In one embodiment, a buzzer is further included, which is arranged on the enclosure 7 and electrically connected to the controller. The controller is suitable for controlling the buzzer to sound according to the control information generated by the sensor component.

[0081] In this embodiment, by adding a buzzer connected to the controller, an audible and visual alarm can be issued when the sensor component detects a major impact, promptly reminding maintenance personnel to conduct equipment inspections, playing the role of active early warning and enhancing the maintainability and safety of the system.

[0082] In one embodiment, it also includes a fixed tube 34, a fixed column 35, a fifth elastic member, a fixed plate 36 and a fixed block 37. The fixed tube 34 is connected to the outer wall of the shell 1, and a clearance groove 401 is provided on the end cover 4. The fixed tube 34 slides in cooperation with the clearance groove 401. The fixed column 35 slides in cooperation with the inner wall of the fixed tube 34. The fifth elastic member is configured as a tension spring, which is provided in the fixed tube 34 and is respectively connected to the fixed tube 34 and the fixed column 35. The fifth elastic member has a tendency to drive the fixed column 35 to extend into the fixed tube 34. The fixed plate 36 is connected to one end of the fixed column 35 away from the fixed tube 34. The fixed block 37 is connected to the side of the fixed plate 36 facing the shell 1, and a fixed groove 402 adapted to the fixed block 37 is provided on the end cover 4.

[0083] It should be noted that the fixed column 35 slides obliquely in the fixed tube 34, and a tension spring is provided in the fixed tube 34. The tension spring applies tension to the fixed column 35, the fixed plate 36 is fixed on the fixed column 35, and the fixed block 37 is fixed to both ends of the fixed plate 36. The side wall of the upper end cover 4 is provided with a makeshift groove 401 for the sliding of the fixed tube 34 and a fixed groove 402 for the insertion of the fixed block 37. The fixed block 37 is inserted into the fixed groove 402 from top to bottom at an angle. With the assistance of the tension spring and gravity, the fixed block 37 is stably located in the fixed groove 402.

[0084] In this embodiment, the end cover 4 fixing assembly adopts a design in which the fixing block 37 is inserted obliquely and automatically snaps into the fixing groove 402 under the action of the fifth elastic member and gravity, thereby realizing the rapid locking and opening of the end cover 4, being easy to operate and having a reliable connection, and providing convenience for the installation, maintenance and reset inspection of the equipment after buffering.

[0085] In one embodiment, the first inner rod 13 and the second inner rod 15 are both provided with limit blocks, and the inner walls of the first outer tube 12 and the second outer tube 14 are both provided with limit grooves, and the limit blocks are arranged in the limit grooves, and the limit blocks and the limit grooves are slidably matched.

[0086] In this embodiment, limit blocks are provided on the first inner rod 13 and the second inner rod 15, and matching limit grooves are provided on the inner walls of the first outer tube 12 and the second outer tube 14, which effectively prevent the inner rods from completely falling out of the outer tubes during the buffering process, thereby ensuring the reliability and safety of the buffer mechanism and extending its service life.

[0087] The above is a detailed introduction to a protective device provided by the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only intended to help understand the method and core ideas of the present application. It should be pointed out that, for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A protective device, characterized in that: include: A housing (1) is provided with a chamber (101) for loading a first device (2), a heat dissipation gap (3) is provided between the first device (2) and an inner wall of the chamber (101), and the heat dissipation gap (3) covers the first device (2); An end cover (4) is provided on the housing (1) and is used to seal the chamber (101); both the end cover (4) and the housing (1) are provided with heat dissipation holes (5); and the heat dissipation holes (5) are in communication with the heat dissipation gap (3); a plurality of first buffer components, the plurality of first buffer components being arranged at intervals along the circumference of the chamber (101), the first buffer components being against the first device (2); a second buffer assembly, disposed on a side wall of the end cover (4) facing the chamber (101) and abutting against the first device (2); A third buffer assembly is arranged on the inner wall of the chamber (101) facing the end cover (4) and abuts against the first device (2).

2. The protective device according to claim 1, characterized in that Also includes: A support plate (6) is disposed in the chamber (101), and a through hole (601) is provided on the support plate (6); A panel (7) is provided on a side surface of the support plate (6), the panel (7) and the support plate (6) enclose a groove (8), the first device (2) is provided in the groove (8), and the first device (2) abuts against the support plate (6); A first gap is left between the outer peripheral surface of the enclosure (7) and the inner side wall of the chamber (101), a second gap is left between the support plate (6) and the inner wall of the chamber (101) facing the end cover (4), and a third gap is left between the side wall of the enclosure (7) facing the end cover (4) and the end cover (4), and the first gap, the second gap and the third gap form the heat dissipation gap (3).

3. The protective device according to claim 2, characterized in that: The first buffer component includes: A buffer plate (9) is disposed in the groove (8), the buffer plate (9) abuts against the peripheral surface of the first device (2), and the buffer plate (9) is slidably engaged with the support plate (6); A limiting plate (10), one end of which is connected to the buffer plate (9), a limiting hole is provided on the enclosure plate (7), and the other end of the limiting plate (10) passes through the limiting hole and is slidably engaged with the inner wall of the limiting hole; A first elastic member (11) is located between the buffer plate (9) and the inner peripheral surface of the enclosure (7), one end of the first elastic member (11) is connected to the enclosure (7), and the other end of the first elastic member (11) is connected to the buffer plate (9), and the first elastic member (11) has a tendency to drive the buffer plate (9) to approach the first device (2).

4. The protective device according to claim 3, characterized in that: The limiting plate (10) is configured as an arc-shaped structure, and a plurality of the limiting plates (10) are respectively configured in one-to-one correspondence with a plurality of edges of the first device (2), and the inner arc surface of the limiting plate (10) abuts against the edge of the first device (2).

5. The protective device according to claim 2, characterized in that: The second buffer assembly is provided in plurality and arranged in an array, and the second buffer assembly includes: a first outer tube (12), one end of which is connected to the end cover (4); a first inner rod (13), one end of which is located in the lumen of the other end of the first outer tube (12) and is slidably engaged with the inner wall of the first outer tube (12), and the other end of the first inner rod (13) is in contact with a surface of the first device (2) facing the end cover (4); A second elastic member is disposed in the first outer tube (12), and the second elastic member has a tendency to drive the first inner rod (13) away from the first outer tube (12).

6. The protective device according to claim 2, characterized in that: The third buffer assembly is provided in plurality and arranged in an array, and the third buffer assembly includes: a second outer tube (14) comprising a first end and a second end opposite to each other, the first end of the second outer tube (14) being connected to the inner wall of the chamber (101) facing the end cover (4), and the second end of the second outer tube (14) being connected to a side of the support plate (6) away from the end cover (4); a second inner rod (15), one end of which is located in the lumen of the second end of the second outer tube (14) and is slidably engaged with the inner wall of the second outer tube (14); a passage is provided on the support plate (6); the other end of the second inner rod (15) passes through the passage and abuts against a surface of the first device (2) away from the end cover (4); A third elastic member (16) is disposed in the second outer tube (14), and the third elastic member (16) has a tendency to drive the second inner rod (15) away from the second outer tube (14).

7. The protective device according to claim 6, characterized in that Also includes: a bracket (17), the brackets (17) being connected to two opposite sides of the circumference of the second outer tube (14); A locking rod (18) is slidably engaged with the bracket (17) along the radial direction of the second outer tube (14); the bracket (17) is provided with the locking rod (18), and a locking groove (1401) is provided on the circumferential surface of the second inner rod (15); the locking rod (18) passes through the second outer tube (14) and is adapted to the locking groove (1401); A fourth elastic member (19) is arranged between the locking rod (18) and the bracket (17), one end of the fourth elastic member (19) is connected to the locking rod (18), and the other end of the fourth elastic member (19) is connected to the bracket (17), and the fourth elastic member (19) has a tendency to drive the locking rod (18) to extend into the locking groove (1401).

8. The protective device according to claim 7, characterized in that: Also includes: An unlocking plate (20), wherein the unlocking plates (20) are respectively provided on two opposite sides of the second outer tube (14) in the same row in the plurality of the third buffer assemblies, a connecting plate (21) is provided on the locking rod (18), a strip hole (1701) is provided on the bracket (17), the connecting plate (21) passes through the strip hole (1701), the position of the connecting plate (21) in the strip hole (1701) is adjustable, and the unlocking plate (20) abuts against a side of the connecting plate (21) facing the second outer tube (14); a driving assembly connected to the unlocking plate (20) and adapted to drive the unlocking plate (20) to slide radially along the second outer tube (14), so that the locking rod (18) is disengaged from the locking groove (1401); Wherein, when the locking rod (18) is located in the locking groove (1401), the end of the second inner rod (15) is flush with a side of the support plate (6) facing the end cover (4).

9. The protective device according to claim 8, characterized in that The drive assembly includes: a bidirectional screw (22) rotatable along its circumference and comprising a first end and a second end opposite to each other; Slider (23), both ends of the bidirectional screw (22) are connected to the slider (23) via threads, the slider (23) is fixed in the circumferential direction and slides along the axial direction of the bidirectional screw (22), and the slider (23) is connected to the unlocking plate (20); The driving member (24) is connected to the middle portion of the bidirectional screw (22) through a transmission member (25) and is suitable for driving the bidirectional screw (22) to rotate.

10. The protective device according to claim 9, characterized in that Also includes: a support platform (26) connected to the inner wall of the chamber (101) facing the end cover (4); The mounting frame (27) is connected to the support platform (26), the driving member (24) is arranged on the mounting frame (27), the slider (23) is slidably matched with the mounting frame (27), and the bidirectional screw (22) is connected to the mounting frame (27) through a rotating seat.

11. The protective device according to claim 9, characterized in that Also includes: a sensing component, arranged between the enclosure (7) and the first device, adapted to obtain pressure information applied to the first device (2), and to generate control information based on a comparison structure between the obtained pressure information and preset pressure information; A controller is electrically connected to the driving member (24) and the sensing component, and is adapted to control the driving member (24) to drive the bidirectional screw (22) to rotate according to control information generated by the sensing component.

12. The protective device according to claim 2, characterized in that: Also includes: The first locking plate comprises a first plate segment (28) and a second plate segment (29) connected to each other, wherein the first plate segment (28) and the second plate segment (29) are arranged at an angle, and the first plate segment (28) and the second plate segment (29) respectively abut against a side of the first device (2) facing the end cover (4) and an adjacent first side surface, the first plate segment (28) being connected to a side of the first device (2) facing the end cover (4) via a first fastener (30), and the second plate segment (29) being spaced apart along its length direction. There are a plurality of first evasion holes (2901), the connection terminals (201) of the first device (2) are snap-fitted with the first evasion holes (2901), the enclosure (7) is provided with a first avoidance groove (701), the housing (1) is provided with a second avoidance groove (102), the first avoidance groove (701) and the second avoidance groove (102) correspond to each other, and the connection terminals (201) of the first device (2) pass through the first avoidance groove (701) and the second avoidance groove (102) in sequence.

13. The protective device according to claim 2, characterized in that Also includes: The second locking plate comprises a third plate segment (31) and a fourth plate segment (32) connected to each other, wherein the third plate segment (31) and the fourth plate segment (32) are arranged at an angle, and the third plate segment (31) and the fourth plate segment (32) respectively abut against a side of the first device (2) facing the end cover (4) and an adjacent second side surface, the third plate segment (31) is connected to a side of the first device (2) facing the end cover (4) via a second fastener (33), and the fourth plate segment (32) is provided with a first fastener (33). Two evacuation holes (3201), the power line (202) of the first device (2) is snap-connected with the second evacuation hole (3201), the enclosure (7) is provided with a third evacuation groove (702), the shell (1) is provided with a fourth evacuation groove (103), the third evacuation groove (702) and the fourth evacuation groove (103) correspond to each other, and the power line (202) of the first device (2) passes through the third evacuation groove (702) and the fourth evacuation groove (103) in sequence.

14. The protection device according to claim 11, characterized in that Also includes: A buzzer is provided on the enclosure (7) and is electrically connected to the controller. The controller is adapted to control the buzzer to emit a buzzer according to control information generated by the sensor component.

15. The protective device according to claim 1, characterized in that Also includes: A fixed tube (34) is connected to the outer wall of the housing (1); a clearance groove (401) is provided on the end cover (4); and the fixed tube (34) is slidably engaged with the clearance groove (401); A fixed column (35) slidingly engaged with the inner wall of the fixed tube (34); a fifth elastic member disposed in the fixing tube (34) and connected to the fixing tube (34) and the fixing column (35), respectively, the fifth elastic member having a tendency to drive the fixing column (35) to extend into the fixing tube (34); A fixing plate (36) connected to an end of the fixing column (35) away from the fixing tube (34); A fixing block (37) is connected to a side of the fixing plate (36) facing the housing (1), and a fixing groove (402) adapted to the fixing block (37) is provided on the end cover (4).

Images